NEW  SOURCE  REVIEW

PREVENTION OF SIGNIFICANT DETERIORATION
                    AND
           NONATTAINMENT AREA
            GUIDANCE NOTEBOOK
                     Volume I


                    Prepared byt
                 New Sourca Review Section
              Noncpiteria Pollutant Pro-ams Branch
                Air Quality Management Division
             Office of Air Quality Planning and Standards
                Environaantal Protection Agency
                    JANUARY 1988

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                           ***NOTICE***
The purpose of the New Source Review Prevention of Significant
Deterioration and Nonattainment Area Guidance Notebook is to
provide a compilation of new source review (NSR) reference
material.  Inclusion of material in the document does not signify
that the contents necessarily reflect the current views and
policies of the Environmental Protection Agency.  Every attempt
has been made to make this material as complete and accurate as
possible; however, because the discussions within the document
are, by nature, a condensed version of the actual material, they
are to be used for the sole purpose of directing the user to the
specific material of interest.  For additional information
relating to material contained in this document (or current EPA
policy on any subject matter covered within this document), users
are directed to consult with their EPA Regional Office NSR
contact.
         This  document  was  prepared,  under contract,  for:

              U.S.  Environmental  Protection Agency
           Office  of Air Quality Planning and  Standards
                 Air Quality Management Division
              Noncriteria Pollutant Programs Branch
                Research Triangle Park,  NC 27711
                  This  document was prepared by:

                  Pacific Environmental  Services
                      1905 Chapel Hill Road
                   Durham,  North  Carolina 27707

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           NEW SOURCE REVIEW
PREVENTION OF SIGNIFICANT DETERIORATION
                  AND
           NONATTAINMENT AREA
           GUIDANCE NOTEBOOK

                Volume 1

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                            NOTEBOOK CONTENTS









Volume 1




  c HOW TO USE THE NOTEBOOK




  0 TABLE I.  PSD SUBJECT HEADINGS




  0 TABLE II. NONATTAINMENT SUBJECT HEADINGS




  8 SUBJECT HEADINGS 1-8









Volume 2




  0 SUBJECT HEADINGS 9-28




  0 APPENDIX A.  DETERMINATIONS OF APPLICABILITY PSD/1-148, SSR 1-53




  0 APPENDIX B.  ANNOTATED NEW SOURCE REVIEW REGULATIONS

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                             riOW TO USE IKE
           PSD/NONATTAINMENT POLICY REFERENCE GUIDE NOTEBOOK
Purpose
     This notebook 1s a compilation of policy memorandums,  letters,  and
Information that have been developed to aid implementation  of  the
prevention of significant deterioration (PSD) and nonattainment area
air pollution control programs.  The material included in  this notebook
primarily includes policy statements, policy interpretations,  and
applicability determinations.

     This notebook is an "active" file - it has been designed  to accom-
modate new or revised policy.   Additions,  deletions, replacements, and
cross-referencing information will be provided by Mr. David Solomon
of OAQPSrCPDD as it becomes available.

How to Use the Notebook

     PSD-related policies are found in Chapters 1-14 of the notebook;
nonattainment-related policies are found in Chapters 21-27. The subject
headings and types of policy included under each subject heading are
listed in Tables I and II.  To use the notebook properly,  please follow
these steps:

Step 1.   See Table I or Table  II to locate your subject area of interest
         under the subject headings listed.

Step 2.   Next, look at the index under the same subject heading to
         locate a specific entry (memorandum, letter, etc.) addressing
         your subject.  Each index entry presents pertinent summary
         identification information and it is organized as  follows:

         a.  Each entry is numbered and the entries in each chapter  are
             arranged generally in chronological order.  For each
             numbered entry, digits to the left of the decimal indicate
             the chapter in which the entry is located; digits to the
             right of the decimal are assigned individually for each
             entry.

         b.  Entry index summary information:

             (1)  DATE:  the date the memorandum or policy  statement was
                  issued.

             (2)  SUBJECT:  the "Subject" line on the memorandum.  For
                  letters or other types of policy statements, a brief
                  statement of the policy is presented here.

             (3)  FROM:  the originator(s) or originating office(s)  for
                  the policy statement.

             (4)  TO:  the recipient(s) of the policy statement, usually
                  the originator(s) of the request for guidance.

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             (5)   DISCUSSION:   a  orief  summary  of issues  or policies
                  discussed In  the  entry.   The  discussion is included
                  to provide the  user with more information than the
                  "Subject" line.

             (6)   CR:  cross referencing.   Where an entry cannot easily
                  be placed under a single subject heading, the  index
                  shows the other possible subject headings where the
                  entry could be  placed.   The term [Hard  Copy] following
                  a cross reference index  number indicates the location
                  of the actual memorandum, letter, etc.   Entries are
                  cross referenced  only when the subject matter of the
                  entry pertains  to two or more policies (i.e.,  the
                  policies discussed in the entry fall under more than
                  one subject heading).
                  [NOTE:  Where an  entry is cross referenced, the body
                  of the notebook contains index information to help
                  locate the hard copy.  For example, entry 8.4 in the
                  body of the notebook  shows index information indicating
                  that the hard copy can be found under entry 10.6.]

Step 3.  The final step - locate  the notebook entry or entries that
         relate to your need.

Updating the Notebook

     Periodically, David Solomon will forward additional .entries for
the notebook.  For each addition, the following information will be
included along with a hard copy of  the entry:

     a.  index number;
     b.  complete entry index summary information;
     c.  additional CR information, as necessary; and
     d.  index numbers of any existing entries  partially or entirely
         superceded by the addition.  Memos wholly outdated or  super-
         ceded should be removed from the  notebook.

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                     TABLE  I.   PSD  SUBJECT  HEADINGS
1.   PSD:    Trans ition/Grandfa then ng

            Exemptions  from PSD  requirements  entirely or from "new"
            requirements based upon  date  construction commenced

2.   PSD:    Potential  to Emit/Limitations on  Capacity to Emit

            Calculating "Potential  to  Emit"
            Federal  enforceability
            Limits on  operating  conditions

3.   PSD:    Definition/Classification  of  Source

            Definitions
            Source applicability for PSD
            Source reactivation

4.   PSD:    Modification

            Allowable/actual  emissions increase
            Fuel  conversions -  "capable of accommodating," etc.; DOE
              exemptions
            Accumulations of emissions
            de minimus  levels for modification
            Netting of  emissions

5.   PSD:    Geographic/Pollutant Applicability

            Snip  unloading
            Exempt solvents
            Fugitive (secondary) emissions
            de minimus  levels for new  sources; quantification of enris-
              si on rates

6.   PSD:    Baseline/Increment Consumption/Impact Analysis

            Baseline date, area, emissions
            Increment consumption
            Air quality offsets  under  PSD
            Air quality degradation determination
            Modeling
            Creditable  emissions decreases

7.   PSD:    Ambient Monitoring/Analysis

            Preconstruction monitoring
            Quality Assurance
            Minimum data requirements  for permit application
            Significance levels  for monitoring

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                     TABLE I.   PSD  SUBJECT  HEADINGS
                              (concluded)
8.   PSD:    BACT
            BACT decisions
            Source's ability to  meet BACT
            BACT baseline
            BACT exemptions
            Unregulated pollutants

9.   PSD:    Class I Areas

            Notification of Federal  Land Manager
            Inter-agency coordination
            National Park Service PSD permit application  review guidance
            Redesignation of Class  I areas

10.  PSD:    Permits/Permit Processing/Public Notice

            Permit administrative procedures
            Permit conditions/approval
            Permit appeals
            Phased permits
            Contingency plans
            Performance testing
            Publication policy

11.  PSD:    Permit Changes/Extension/Expiration

            Extensions
            Permit modifications
            Rescissions

12.  PSD:    Relation to Nonattainment Program

            Offsets and PSD
            Nonattainnient sanctions
            Dirty and clean areas affected

13.  PSD:    Temporary Source/Portable Source/Other Exemptions

            Temporary emissions
            Portable sources - PSD  applicability
            Specific sources - requirements, exemptions

14.  PSD:    Allowable Construction  Activities Prior to Permit Issuance

            Definition of "constructed"
            Definition of "commence construction"
            Allowable activities

15.  PSD:    SIP Processing

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               TABLE II.  NONATTAINMENT SUBJECT HEADINGS
21.  NAA:   Transition/Grandfathering

            Exemptions from nonattainment review based on date
              construction commenced

22.  NAA:   Potential to Emit/Limitations on Capacity to Emit

            Calculating "Potential to Emit"
            Federal enforceabllity
            Limits on operating conditions

23.  NAA:   Definition/Classification of Source

            Definitions
            Source applicability for EOP
            Source reactivation

24.  NAA:   Geographic/Pollutant Applicability

            Ship unloading
            Exempt solvents
            Fugitive (secondary) emissions

25.  NAA:   Offsets

            Emissions Offset Policy
            Emissions credits

26.  NAA:   LAER

            LAER decisions
            Source's ability to meet LAER
            LAER baseline
            LAER exemptions

27.  NAA:   Statewide Compliance

            Enforceability
            EOP Condition 2
            Sanctions

28.  NAA:   SIP Processing

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1.  PSD:   TRANSITION/GRANDFATHERING

i.l    DATE:         August 25,  1976
       SUBJECT:     PSD Review  Requirements  for Modified Petroleum
                    Refineries
       FROM:         Richard G.  Stoll,  Jr., Attorney
                    Air Quality & Noise Control  Division, OGC
       TO:          Robert R. McKearin, Assistant  Regional  Counsel
                    Region VI
       DISCUSSION:   See PSD/7
       CR:          None

1.2    DATE:         March 5, 1980
       SUBJECT:     Establishment of  Baseline Date for PSD Areas
       FROM:         Richard 0.  Wilson, Deputy Asst. Administrator
                    Office of Enforcement
       TO:          Robert L. Davies,  Asst.  Administrator
                    Office of Fuels Conversion,  DOE
       DISCUSSION:   See PSD/100
       CR:          6.7 [Hard Copy]

1.3    [DELETED]

1.4    DATE:         February 8, 1983
       SUBJECT:     Westvaco Paper Mill - PSD Applicability
       FROM:         Edward E. Reich,  Director
                    Stationary  Source  Compliance Division
       TO:          W. Ray Cunningham, Acting Deputy Director
                    Air & Waste Management Division
       DISCUSSION:   See PSD/140
       CR:          None

1.5    DATE:         February 13, 1978
       SUBJECT:     PSD Applicability  Determination
       FROM:         Edward E. Reich,  Director
                    Division of Stationary Source Enforcement
       TO:          Stephen A.  Dvorkin, Chief
                    General Enforcement Branch, Region II
       DISCUSSION:   See PSD/40
       CR:          None

1.6    DATE:         July 1, 1978
       SUBJECT:     "Commence Construction"  under PSD
       FROM:         Edward E. Reich,  Director
                    Division of Stationary Source Enforcement
       TO:          David Kee,  Chief
                    Air Enforcement Branch,  Region V
       DISCUSSION:   See PSD/56
       CR:          None

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1.7    DATE:         August  18,  1978
       SUBJECT:      Interpretation of  §52.21(1)(3)  of  the  PSD
                    Regulations
       FROM:         Joan  F.  Bernstein,  Attorney
                    Office  of General  Counsel
       TO:           Henry V. Nickel, Esq.
                    Hunton  & Williams
       DISCUSSION:   See PSD/65
       CR:           None

1.8    DATE:         June  19, 1980
       SUBJECT:      PSD and NSPS  Applicability  Determination  for
                    Guardian Industries'  Flat Glass Plant  in  Corsicana,
                    Texas
       FROM:         Edward  E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:           Diana Dutton, Director
                    Enforcement Division,  Region  VI
       DISCUSSION:   See PSD/113
       CR:           None

1.9    DATE:         April 12,  1979
       SUBJECT:      PSD and NSPS Applicability  -  PEPCO Dickerson
                    Generating  Station Unit #4
       FROM:         Edward  E.  Reich,  Director
                    Division of Stationary Source Enforcement
       TO:           Steve Wassersug,  Director
                    Air and Hazardous  Materials Division,  Region  III
       DISCUSSION:   See PSD/88
       CR:           10.9  [Hard  Copy]

1.10   DATE:         March 11,  1980
       SUBJECT:      Applicability of  Major Source to PSD Review if
                    Construction Commenced after March 19, 1979
       FROM:         Edward  E.  Reich,  Director
                    Division of Stationary Source Enforcement
       TO:           Charles H.  Tisdale, Jr.
                    King  and Spalding Co.
       DISCUSSION:   See PSD/101
       CR:           10.15 [Hard Copy]

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2.  PSD:   POTENTIAL TO EMIT/LIMITATIONS  ON  CAPACITY TO EMIT
2.1
2.2

2.3
2.4

2.5

2.6

2.7

2.8

2.9
[REPLACED]
DATE:
SUBJECT:
FROM:
       TO:

       DISCUSSION:
CR:

[DELETED]

DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
CR:

[DELETED]

[DELETED]

[DELETED]

[DELETED]

[DELETED]

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:
May 25, 1979
Submission of State Air Permits as SIP  Revisions
Richard G. Rhoads,  Director
Control Programs Development Division;
Edward E. Reich, Director
Division of Stationary Source Enforcement
All Regional Directors
Air and Hazardous Materials Divisions
The need for States to submit construction and
operating air permits as revisions to State  Imple-
mentation Plans (SIP) is discussed.  Of particular
concern is the Federal enforceability of State-
issued air permits  that have not been incorporated
individually within a SIP by means of an EPA approval
through rulemaking.
10.4
September 1, 1978
Applicability Determination for PSD - Hot Mix  Asphalt
Operations
Howard Bergman, Director
Enforcement Division, Region VI
Edward E. Reich, Director
Stationary Source Enforcement Division
See PSD/66
None
May 16, 1979
Definition of Peak load Power Plant
Edward E. Reich, Director
Division of Stationary Source Enforcement
Jerry L. Phillips, Environmental Specialist
Burns & McDonnel 1
See PSD/91
None

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2.10   DATE:        March 25, 1980
       SUBJECT:     PSD Applicability
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          Stephen A. Dvorkin, Chief
                    Genera] Enforcement Branch, Region II
       DISCUSSION:  See PSD/103
       CR           10.17

2.11   DATE:        June 9, 1980
       SUBJECT:     PSD Applicability:  Asphalt Concrete Plants
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          F.W. Giaccone, Chief
                    Air Facilities Branch, Region II
       DISCUSSION:  See PSD/111
       CR:          5.7 [Hard Copy]

2.12   DATE:        July 7, 1980
       SUBJECT:     PSD Applicability:  Industrial Scrap Processing
                    Company
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          Samuel P. Moulthrop, Acting Chief
                    General Enforcement Branch, Region II
       DISCUSSION:  See PSD/114
       CR:          None

2.13   DATE:        August 22, 1980
       SUBJECT:     The Use of Permit Conditions to Define a
                    Source's Potential to Emit
       FROM:        Richard G. Rhoads, Director
                    Control Programs  Development Division
       TO:          Thomas W. Devine, Director
                    Air and Hazardous Materials Division, Region IV
       DISCUSSION:  Federally enforceable permit conditions, as defined
                    in the memorandum, may oe used along with  other
                    stated restrictions in defining a source's poten-
                    tial to emit.
       CR:          None

2.14   DATE:        November 25,  I960
       SUBJECT:     Calculation of  Firing Rate for Facility
                    Cofiring Municipal Waste and Paper-mill Sludge
       FROM:        Edward E. Reich,  Director
                    Division of Stationary Source Enforcement
       TO:          Daniel J. Dent, Project Engineer
                    Bechtel,  Inc.
       DISCUSSION:  See  PSD/118
       CR:          None

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2.15
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
       CR:
March 31, 1981
Summary of PSD Policy Determinations
Thomas U. Devine
Air and Hazardous Materials, Division, Region IV
All State/Local Directors
Region IV
Summary of PSD policy determinations during the
period from November 13, 1980 to January 12, 1981:
   1)  Treatment of fugitive emissions with regard
       to PSD applicability.
   2)  A proposed physical  change must, by itself,
       result in a net increase greater than de
       minimus in order to  be subject to PSD (see
       PSD/120).
   3)  Allowable emissions  can be presumed to repre-
       sent actual emissions for new sources and,
       therefore, an increase in production at the
       PSD source is not an increase in actual
       emissions.  (Also see PSD/120).
   4)  Example 3 above occurs at an existing source
       which did not have a new source construction
       permit under the SIP (see PSD/120).
   5)  An iron foundry is considered to be one of
       the 28 PSD categories (i.e., a secondary
       metal production plant) if it uses scrap
       metal to produce iron, even if the metal  is
       poured into molds.
   6)  Applicability of offset requirements from new
       source with a SIP construction permit whose
       permit conditions did not prohibit subsequent
       increases.
   7)  A whiskey distillery is not considered to be
       one of the 28 PSD categories, specifically a
       chemical process plant.  A chemical process
       plant is any establishment in Major Group 28
       of the SIC Code.
       Beverage distilleries are in Major Group 20.
   8)  A proposed increase  in emissions is not sub-
       ject to PSD unless the triggering increase
       is of the same pollutant as the one for
       which a significant  increase "esults.  (Also
       see PSD/120).
   9)  The 50 ton per year  exemption under 40 CFR
       52.21(i)(7) is pollutant specific.
  10)  Operating permits are not Federally enforce-
       able; however, the State can impart Federally
       enforceable conditions to a construction
       permit issued for the source in accordance
       with the New Source  Review procedures of the
       SIP at the time of issuance.
3.16 [Hard Copy]; 4.16; 5.9; 10.22; 12.9; 13.5

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2.16   DATE:        April  i,  1981
       SUBJECT:      PSD Questions
       FROM:        Edward E.  Reich,  Director
                    Division  of Stationary  Source  Enforcement
       TO:           Merrill  S.  Honman,  Director
                    Air &  Hazardous Materials Division, Region  I
       DISCUSSION:   See PSD/124
       CR:           4.7 [Hard  Copy];  13.6

2.17   DATE:        June 12,  1981
       SUBJECT:      PSD Determination:   Sun Oil  Company and  the Defini-
                    tion of Major Modification
       FROM:        Edward E.  Reich,  Director
                    Division  of Stationary  Source  Enforcement
       TO:           Julio  Morales-Sanchez,  Director
                    Enforcement Division, Region II
       DISCUSSION:   See PSD/127
       CR:           None

2.18   DATE:        July 31,  1981
       SUBJECT:      Summary  of PSD Policy Determinations
       FROM:        Thomas W.  Devine, Director
                    Air and Hazardous Materials  Division, Region  IV
       TO:           All State/Local Directors
                    Region IV
       DISCUSSION:   Summary of PSD policy determinations during the  period
                    from February 5,  1981 to July  15,  1981:
                       1)   Is  a source  reactivation  subject  to  PSD  (see
                           PSD/117).
                       2)  The complete list of  organic compounds  not
                           considered photochemically  reactive and,  there-
                           fore,  not  a  VOC  for purposes of PSD  is
                           detailed.
                       3)  Construction of  a major source in a  nonattain-
                           ment area  projected to  be attainment (based
                           on  the approved  Part  D  SIP) before  startup,
                           is  not subject to PSD or  Part D requirements.
                       4}  Determination of modeling baseline  air  quality
                           levels for 3-hour and 24-hour averages  is
                           discussed.
                       5}   If  an ambient monitor has been shut  down,
                           data obtained may still be  deemed pertinent
                           and useful under certain  conditions.
                       6)  A minor source which  locates within  a  PSD
                          area and impacts a nearby PSD area may
                           trigger baseline and  consume increment
                          within each  of the areas  under certain
                          conditions.
                       7)  A minor source which  adds a major emission
                           point could  not  escape  PSD  by considering
                           previous decreases which  cause the  net
                           increase to  be less than  the major  source
                           threshold.
                       8}  An  existing  source may  change its designation
                           from major to minor by  accepting  a  Federally
                           enforceable  limitation.

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2.19
CR:

DATE:
SUBJECT:
FROM:

TO:
       DISCUSSION:


       CR:

2.20   DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:

       CR:

2.21   DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:


       CR:

2.22   DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:

       CR:
    9)   The  50 tons  per year  exemption  jnaer  40  CFR
        52.21(1)(7)  cannot  be  claimed for an  emission
        Increase  of £ny_ pollutant  unless  the  Increase
        of each  pollutant Is  less  than  50 tons per
        year.
   10)   The  air  quality de  minimus level  for  NOg  is
        14  g/m3  annual average, as  stated  in the
        published version of  the regulation.
 3.19;  4.19;  5.10; 6.11; 7.5;  10.23

 April  28, 1982
 Federal  Enforceability under  PSD
 Kathleen M.  Bennett, Assistant Administrator
 Office of Air,  Noise, and  Radiation
 All  Regional  Directors
 Air  &  Waste Management Divisions, Regions  I-IY,
 VI-VIII,  X;
 All  Regional  Directors
 Air  Management  Divisions,  Regions V and  IX
 Federal  enforceability of  emissions limitations, as
 required for  offsets or applicability  purposes, is
 defined  within  the memorandum.
 None

 June 28,  1985
.Seasonal  Afterburner Policy,  Applicability of Part D
 New  Source Review Requirements
 Robert D. Bauman, Chief
 Standards Implementation Branch,  CPDD
 William  S.  Baker, Chief
 Air  Programs  Branch, Region II
 Applicability discussion for  sources using EPA  Seasonal
 Afterburner Policy
 5.20;  22.5 [Hard Copy]

 September 11, 1985
 Action Taken  by  the Indiana Air Pollution Control
 Board  over U.S.  EPA Objections
 Valdas V. Adamkus, Regional Administrator
 U.S. EPA, Region V
 Uoodrow  A. Myers, State Health Commissioner
 Indiana  State Board of Health
 An amended PSD  permit issued  by Indiana was  not con-
 sidered  Federally enforceable by  EPA as it included
 inappropriate BACT emissions  limits.
 None

 December 17,  1985
 Federal  Enforceability
 Thomas W. Rarick, Chief
 Air  Operations Branch, AMD, Region  IX
 James  D.  Boyd, Air Pollution  Control Officer
 California Air Resources Board
 Memo provides clarification regarding  which  permits
 may  be Federally enforceable.
 None

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2.23   DATE:         Marcn 13,  1986
       SUBJECT:      Time Frames for Determination of  Applicability  to
                    New Source Review
       FROM:         Ed Reich,  Director,  Stationary Source Compliance
                    Division
                    OAQPS
       TO:           Bruce P. Miller, Acting Chief
                    Air Programs Branch, Region IV
       DISCUSSION:   Memo discusses the averaging time that  EPA  has  agreed
                    is the longest time  frame that should be  accepted  as
                    Federally enforceable for permit  restrictions on
                    production (hours of operation) which limit  potential
                    to emit to below major source or  modification thres-
                    hold.  This policy is not to be extended  to  dete-mi-
                    nation of compliance with emission limitations.  See
                    April 8, 1987, memo  from John Seitz for further
                    clarification.
       CR:           None

2.24   DATE:         February 18, 1987
       SUBJECT:      PSD Applicability Request, Valero Hydrocarbon Company,
                    Yoakum, DeUitt County, Texas
       FROM:         William B. Hathaway, Director
                    Air, Pesticides, and Toxics Division
       TO:           Ken Ward,  P.E., President
                    Ward and Associates, Austin, Texas
       DISCUSSION:   Memo discusses the use of SIC codes to  determine
                    applicability of a facility to PSD regulations.
       CR:           None

2.25   DATE:         April 6, 1987
       SUBJECT:      Applicability of PSD regulations  for 3M pilot coating
                    equipment
       FROM:         Steve Rothblatt, Chief
                    Air and Radiation Branch
       TO:           Roger D. Anderson, P.E.
                    3M Corporation, St.  Paul, Minnesota
       DISCUSSION:   Memo discussed whether PSD regulations  are  applicable
                    to a pilot coater being added to  an existing source
                    that has the potential to emit more than  250 tpy  of
                    VOC in an ozone attainment area.   Further,  the  memo
                    discusses how a permit could be written to  avoid  PSD
                    review if the PSD regulations should apply.
       CR:           None

2.26   DATE:         April 8, 1987
       SUBJECT:      Clarification of New Source Review Policy on Averaging
                    Times for Production Limitations
       FROM:         John S. Seitz, Director
                    Stationary Source Compliance Division
                    OAQPS
       TO:           Air Division Directors
                    Regions I - X

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DISCUSSION:  The policy described In the March 13, 1986, memo on
             maximum allowable averaging times for production and
             operational limitations shall not be applied to emis-
             sion limitations, rather it applies only to produc-
             tion/operational limitations.  This memorandum further
             distinguishes between EPA's policy on averaging times
             for production limitations versus emission limitations,
             and clarifies the proper implementation of the March 13,
             1986, memorandum.
CR:           None

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3.   PSD:   DEFINITION/CLASSIFICATION OF SOURCE

3.1    [REPLACED]
       DATE:         June 9,  1980
       SUBJECT:      PSD Applicability, South Hospah Mine
                    Edward E.  Reich, Director
                    Division of Stationary Source Enforcement
       TO:           Allyn Davis, Director
                    Air & Hazardous Materials Division, Region IV
       DISCUSSION:   See PSD/110
       CR:           None

3.2    DATE:         May 2, 1977
       SUBJECT:      PSD Determination of Applicability -
                    UMD Coal Gasification Plant
       FROM:         Edward E.  Reich, Director
                    Division of Stationary Source Enforcement
       TO:           David A. Ullrich, Acting Chief
                    Air Enforcement Branch, Region V
       DISCUSSION:   See PSD/28
       CR:           None

3.3    DATE:         September  8,  1977
       SUBJECT:      PSD Applicability to Exxon Chemical Modification:
                    Bay town, Texas
       FROM         Edward E.  Reich, Director
                    Division of Stationary Source Enforcement
       TO:           Eloy R'.  Lozano, Director
                    Air and  Hazardous Materials Division, Region VI
       DISCUSSION:   See PSD/32
       CR:           None

3.4    [REPLACED]
       DATE:         December 19,  1979
       SUBJECT:      Clarification  of Federal PSD Regulations Concerning
                    Municipal  Incinerators
       FROM:         Edward E.  Reich, Director
                    Division of Stationary Source Enforcement
       TO:           Miro Dvirka
       DISCUSSION:   The applicability of both PSD and  NSPS  regulations
                    to municipal  incinerators is discussed  in  terms  of
                    charging capacity and potential  to emit.
       CR:           None

3.5    DATE:         October  17, 1977
       SUBJECT:      Application of PSD Review to a Portland Cement
                    Manufacturing Operation, Texas Industries,  Inc.
       FROM:         Edward E.  Reich, Director
                    Division of Stationary Source Enforcement
       TO:           Eloy R.  Lozano, Director
                    Air and  Hazardous Materials Division, Region  VI
       DISCUSSION:   See PSD/34
       CR:         .  None

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3.6
3.7

3.8
3.9

3.10
3.11

3.12

3.13
DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
CR:

[DELETED]

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:

[DELETED]

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:

[DELETED]

[DELETED]

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
November 23, 1977
PSD Applicability of Coal Preparation Plants
Constructed Without a Thermal  Dryer
Eric Cohen
Air Enforcement Branch, Region V
Rich Biondi
Division of Stationary Source  Enforcement
See PSD/38
None
July 14, 1978
PSD Requirements
Edward E. Reich, Director
Division of Stationary Source Enforcement
Stephen A. Dvorkin, Chief
General Enforcement Branch, Region II
See PSD/59
None
March 16, 1979
Definition of Source
Edward E. Reich, Director
Division of Stationary Source Enforcement
Diana Dutton, Director
Enforcement Division, Region VI
See PSO/83
None
       CR:
June 13, 1980
Old Sources Being Brought Online - PSD Applicability
Roger Pfaff
Region IV
Rich Biondi
Division of Stationary Source Enforcement
Generally, if a source has been shutdown for a time
period of greater than two years and then restarted,
it is considered a new source.  An exception can be
made if the State demonstrates the source was
carried in the emission inventory during the time
it was shutdown.
None

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3.14   DATE:         August 8, 1980
       SUBJECT:      PSD Applicability Determination:   Babylon 2
       FROM:         Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:           William K. Sawyer, Attorney
                    General Enforcement Branch, Region II
       DISCUSSION:  See PSD/116
       CR:           None

3.15   DATE:         October 3, 1980
       SUBJECT:      PSD and NSPS Applicability to a Reactivated Source
       FROM:         Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:           Sandra S. Gardebring, Director
                    Enforcement Division, Region V
       DISCUSSION:  See PSD/117
       CR:           None

3.16   DATE:         March 31, 1981
       SUBJECT:      Summary of PSD Policy Determinations
       FROM:         Thomas W. Oevine
                    Air and Hazardous Materials Division, Region IV
       TO:           All State/Local Directors
                    Region IV
       DISCUSSION:  Summary of PSD policy determinations during the
                    period from November 13, 1980 to January 12, 1981:
                       1)  Treatment of fugitive emissions with regard
                           to PSD applicability.
                       2)  A proposed physical change must, by itself,
                           result in a net increase greater than de
                           minimus in order to be subject to PSD (see
                           PSD/120).
                       3)  Allowable emissions can be presumed to repre-
                           sent actual emissions for new sources and,
                           therefore, an increase in production at the
                           PSD source is not an increase in actual
                           emissions.  (Also see PSD/120).
                       4)  Example 3 above occurs at an existing source
                           which did not have a new source construction
                           permit under the SIP (see PSD/120).
                       5)  An iron foundry is considered f) be one of
                           the 28 PSD categories (i.e., a -.econdary
                           metal production plant) if it uses scrap
                           metal to produce iron, even if the metal is
                           poured into molds.
                       6)  Applicability of offset requirements from new
                           source with a SIP construction permit whose
                           permit conditions did not prohibit subsequent
                           increases.
                       7)  A whiskey distillery is not considered to be
                           one of the 28 PSD categories, specifically a
                           chemical process plant.  A chemical process
                           plant is any establishment in Major Group  23
                           of the SIC Code.  Beverage distilleries are
                           in Major Grouo 20.

-------
       CR:
   8)  A proposed increase in emissions  is  not  sub-
       ject to PSD unless  the triggering increase
       is of the same pollutant  as  the one  for
       which a significant increase results.   (Also
       see PSD/120).
   9)  The 50 ton per year exemption under  40 CFR
       52.21(0(7) is pollutant  specific.
  10)  Operating permits are  not Federally  enforce-
       able; however, the  State  can impart  Federally
       enforceable conditions to a  construction
       permit issued for the  source in accordance
       with the New Source Review procedures of  the
       SIP at the time of  issuance.
2.15; 4.16; 5.9; 10.22; 12.9; 13.5
3.17   [MOVED TO 4.7]

3.18   DATE:         June 30,  1981
       SUBJECT:      PSD Definition  of Source
       FROM:         Edward E. Reich,  Director
                    Division  of Stationary Source  Enforcement
       TO:          Steve Rothblatt,  Chief
                    Air Programs Branch,  Region  V
       DISCUSSION:   See PSD/129
       CR:          None

3.19   DATE:         July 31,  1981
       SUBJECT:      Summary of PSD  Policy Determinations
       FROM:         Thomas U. Devine
                    Air and Hazardous Materials  Division,  Region  IV
       TO:          All State/Local Directors
                    Region IV
       DISCUSSION:   Summary of PSD  policy determinations  during the  period
                    from February 5,  1981 to July  15,  1981:
                       1)  Is a source reactivation  subject  to PSD (see
                           PSD/117).
                       2)  The complete list of  organic compounds not
                           considered photochemically  reactive and,  there-
                           fore, not  a VOC for purposes of PSD is
                           detailed.
                       3)  Construction of a major source in a nonattain-
                           ment area  projected to  re attainment (based
                           on the approved Part  D  SIP)  before startup,
                           is not subject to PSD or Part  D requirements.
                       4)  Determination  of modeling baseline air
                           quality  levels for 3-hour and.24-hour averages
                           is discussed.
                       5)  If an ambient  monitor has been shut down,
                           data obtained  may still be  deemed pertinent
                           and useful under certain conditions.
                       6)  A minor source which locates within a PSD
                           area and impacts a nearby PSD area may
                           trigger baseline and consume increment
                           within each of the areas under certain
                           conditions.

-------
                       7)  A minor source which adds a major emission
                           point could not escape PSD by considering
                           previous decreases which cause the net
                           increase to be less than the major source
                           threshold.
                       8}  An existing source may change its designation
                           from major to minor by accepting a Federally
                           enforceable limitation.
                       9)  The 50 tons per year exemption under 40 CFR
                           52.21(i)(7) cannot be claimed for an emission
                           increase of any pollutant unless the increase
                           of each pollutant is less than 50 tons per
                           year.
                      10)  The air quality de minimus level  for N02 is
                           14  g/nr annual  average, as stated in the
                           published version of the regulation.
       CR:          2.18 [Hard Copy]; 4.19; 5.20; 6.11; 7.5; 10.23

3.20   OATE:        March 29, 1982
       SUBJECT:     PSD Applicability of Aluminum Rolling Mill.
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          John Noland
                    Roy F. Weston, Inc.
       DISCUSSION:   See PSD/134
       CR:          None

3.21   DATE:        July 9, 1982
       SUBJECT:     Reactivation of Amerada Hess Corporation's Port
                    Reading Facility and PSD Review
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          Conrad Simon, Director
                    Air & Waste Management Division, Region II
       DISCUSSION:   See PSD/136
       CR:          6.14

3.22   DATE:        May 31, 1983
       SUBJECT:     Potential Emission Threshold of Coal  Preparation
                    Facility and Surface Coal  Mine Located at a
                    Common Site
       FROM:        Edward E. Reich, Director
                    Stationary Source Compliance Division
       TO:          John M. Daniel, Jr. P.E., Assistant Executive
                    Director State Air Pollution Control  Board
                    (Virginia)
       DISCUSSION:   See PSD/144
       CR:          None

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3.23   DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
3.24
CR:

DATE:
SUBJECT:

FROM:

TO:
       DISCUSSION:
3.25
CR:

DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
       CR:

3.26   DATE:
       SUBJECT:
       FROM:

       TO:
reoruary il, 1981
Applicability of PSD requirements and NSPS standards
to a proposed fuel conversion at Great Northern
Paper In Millinocket, Maine
Ed Reich, Director
Division of Stationary Source Enforcement
John Chandler
Department of Environmental Protection,  Maine
The memo discusses applicability of NSPS and PSO
requirements for two steam generators currently
burning No. 6 fuel oil and proposing to  convert to
coal.
None

October 17, 1986
Application of NSR rules to the conversion to coal
at the Hibbard Station Units 3 and 4..
Steve Rothblatt, Chief
Air and Radiation Branch
Louis M. Chamberlain
Division of Air Quality, Minnesota Pollution Control
Agency
Discusses the circumstances under which a conversion
to coal of two units at the Hibbard Station would
cause the plant to be subject to PSD regulations for
sulfur dioxide.  Also, discusses the term "capable of
accommodating" and the implications of the construction
ban in this case.
4.34 [Hard Copy]; 12.11

November 3, 1986
PSD Applicability Request, Valero Transmission Company,
Yoakum, DeWitt County, Texas
Jack S. Divita
Air, Pesticides and Toxics Division
Allen Eli Bell, Executive Director
Texas Air Control Broad
Memo discusses applicability of Valero Transmission
Company's facilities to PSD regulations based on the
SIC codes to which they belong, and generally dis-
cusses how source classification using SIC codes
should operate.
None

March 26, 1987
Request for Guidance in Drafting a State Implementa-
tion Plan (SIP) Deficiency Notice for Michigan's
Nonattainment New Source Review (NSR) Program
Darryl D. Tyler, Director
Control Programs Development Division
David Kee, Director
Air and Radiation Division, Region V

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       DISCUSSION:
3.27
CR:

DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
       CR:
A dual source definition is consiaerea co oe more
stringent than EPA's minimum requirement, and,
therefore, an NSR regulation that includes a dual
source definition.requires no demonstration for EPA
to approve the SIP  revision.
None

May 27, 1987
Reactivation of Noranda Lakeshore Mines'  RLA Plant
and PSD Review
John S. Seitz, Director
Stationary Source Compliance Division, OAQPS
David P. Howekamp,  Director
Air Management Division, Region IX
This memo determines that startup of a -oste" leach
acid (RLA) plant closed for 10 years would be subject
to PSD review due to the intent of permanent shut-
down as demonstrated by the owner.  The specific
reasons to demonstrate the permanency of shutdown  in
this case are discussed.
None

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                         Additional  New Source Review Notebook  Entry
            Discussion Number:  3.28
Regulatory Citation (current):  40 CFR  52.21(b)(l)(iii)(z)
                        (old):
                         Date:  September 30,  1987
                           To:  Mr.  Dell  Collins
                               Impel 1  Power Projects

                         From:  Mr.  David Kee,  Director
                               Air  and Radiation Division
                               Region  5
                      Subject:  Gas  turbine/fossil  fuel-fired  steam electric plants
                           CR:
                   Discussion:  This  letter discusses whether heat  input  of  a  gas
                               turbine,  which produces  electricity directly,  should
                               be counted towards the 250 MM BTU/hr cut  off given
                               in the PSD source category of "fossil  fuel-fired
                               steam electric plants of more than  250 MM BTU/hr
                               heat  input.

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4.   PSD:   MODIFICATION

4.1    DATE:         November  1,  1977
       SUBJECT:      PSD  Applicability  Determination - ARCO Petroleum
                    Refinery
       FROM:         Edward  E.  Reich, Director
                    Division  of  Stationary Source Enforcement
       TO:           Lloyd A.  Reed, Director
                    Enforcement  Division, Region X
       DISCUSSION:   See  PSD/35
       CR:           None

4.2    DATE:         March 20,  1978
       SUBJECT:      PSD  Determination
                    Cabot Corporation  -  Fuel Conversion
       FROM:         Edward  E.  Reich, Director
                    Division  of  Stationary Source Enforcement
       TO:           Oscar Cabra,  Jr.,  Chief
                    Air  Programs Branch, Region VI
       DISCUSSION:   See  PSD/43
       CR:           None

4.3    [REPLACED]
       DATE:         March 24,  1983
       SUBJECT:      Ersana  PSD Applicability Determinations
       FROM:         Edward  E.  Reich, Director
                    Division  of  Stationary Source Enforcement
       TO:           Conrad  Simon,  Director
                    Air  & Waste  Management Division, Region II
       DISCUSSION:   See  PSD/141
       CR:           None

4.4    DATE:         July 14,  1978
       SUBJECT:      PSD  Requirements
       FROM:         Stuart  N.  Roth, Attorney
                    General Enforcement Branch
       TO:           Li boy Scopino
                    Division  of  Stationary Source Enforcement
       DISCUSSION:   See  PSD/58
       CR:           None

4.5    DATE:         July 21,  1978
       SUBJECT:      PSD  Permit for Marblehead  Lime Company
       FROM:         Edward  E.  Reich, Director
                    Division  of  Stationary Source Enforcement
       TO:           Robert  L.  Duprey,  Director
                    Air  and Hazardous  Materials Division, Region  V
       DISCUSSION:   See  PSD/60
       CR:           11.1

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4.6    [REPLACED]
       DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:
       CR:

4.7    [REPLACED]
       DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSIOH:
       CR:

4.8    [REPLACED]
       DATE:
       SUBJECT:

       FROM:
       TO:

       DISCUSSION:

       CR:
 4.10   [DELETED]
 4.11
 4.12
DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:

FROM:

TO:
            May 6, 1983
            Applicability Determination for Delco Products in
            Dayton, Ohio
            Edward E. Reich, Director
            Division of Stationary Source Enforcement
            David Kee, Director
            Air Management Division, Region V
            See PSD/143
            12.10
             April  1,  1981
             PSD  Questions
             Edward E.  Reich, Director
             Division  of Stationary Source Enforcement
             Merrill S. Hohman, Director
             Air  &  Hazardous Material Division, Region I
             See  PSD/124
             2.16;  13.6
             March 26,  1979
             Applicability of  PSD  to  the  Consolidated Edison
             Company
             Edward E.  Reich,  Director
             Division of Stationary Source  Enforcement
             Meyer Scolnick, Director
             Enforcement Division, Region II
             See PSD/85
             None
4.9    [MOVED TO 4.8]
September 19,  1979
Definition of  "Capable  of Accommodating"
(40 CFR 52.2Kb) (2) (d))
Roger Pfaff
Region IV
Bill Mitchell
Georgia Air Pollution Control
A proposed fuel switch  is permitted if  the  source  had
commenced construction under PSD prior  to January  6,
1975 and if the design  of the source allowed firing
of-the proposed fuel.
None

April 11, 1980
Exemptions from PSD  Permit Requirements for Coal
Conversions Resulting from DOE Prohibition  Orders
Edward E. Reich, Director
Division of Stationary Source Enforcement
Howard R. Heim, Chief

-------
       DISCUSSION:
       CR:

4.13   DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:
4.14
DATE:
SUBJECT:
FROM:

TO:
DISCUSSION:
Air Programs Branch, Region III
See PSD/104
6.9; 13.3

January 22, 1981
PSD Applicability
Edward E. Reich, Director
Division of Stationary Source Enforcement
Charles Whitmore, Chief
Technical Analysis Section, Region VII
See PSD/120
None

February 9, 1981
Petitions for Review of PSD Regulations
Michael Trutna, Chief
New Source Review Section
All New Source Review Contacts
Petitions for review of PSD regulations.
- Utility Air Regulatory Group Petition
   1)  Consideration is given to the increase  in
       actual emissions resulting from a  fuel
       switch and the resulting impact on increment
       consumption.
   2)  The term "demolition" as applied to reduction
       in capacity utilization and the corresponding
       effect on increment consumption.
   3)  The definition of major modification excludes
       any voluntary fuel switch at a source deemed
       "capable of accommodating" and compliance
       with certain other conditions.
   4)  Definition of term "significant" as applied
       to de minimus emission levels both for
       pollutants listed and those not listed.
                       5)
                       6)
                                            "minor" source
       CR:
       A "minor" addition to a
       would contribute to the baseline concentra-
       tion if it occurred before the applicable
       baseline date; however, it would not trigger
       PSD review.
       Section 52.21(i)(7) exempts any major modifi-
       cation, which meets certain conditions,  from
       the air quality assessments relating to
       Class II areas.  A source may claim more
       than one such exemption.
             - America Petroleum Institute (API) Petition.
               See (2) and (4) above.

             - American Mining Congress (AMC) Petition
                1)  The treatment of fugitive emissions, with
                    regard to a source's designation as "major1
                    for PSD purposes, is further clarified.
             6.10; 13.4; 5.12

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4.15   DATE:        February 13, 1981
       SUBJECT:     Baseline Date  n Determining Net  Emissions  Increases
       FROM:        Darryl  D. Tyi *, Acting Director
                    Control  Programs Development Division
       TO:          Allyn M. Davis,  Director
                    Air and  Hazardous Materials  Division,  Region  VI
       DISCUSSION:  See PSD/122
       CR :          None

4.16   DATE:        March 31, 1981
       SUBJECT:     Summary  of PSD Policy Determinations
       FROM:        Thomas  W. Devine
                    Air and  Hazardous Materials  Division,  Region  IV
       TO:          All State/Local  Directors
                    Region  IV
       DISCUSSION:  Summary  of PSD policy determinations during the
                    period  from November 13, 1980 to  January  12,  1981:
                       1)  Treatment of fugitive emissions with regard
                           to PSD applicability.
                           A proposed physical change must, by  itself,
                           result in a net increase greater than  de
                           minimus in order to be subject  to  PSD  (see
                           PSD/120).
                           Allowable emissions can be presumed  to repre-
                           sent actual emissions for  new sources  and,
                           therefore, an increase in  production at the
                           PSD source is not an  increase in actual
                           emissions.  (Also see PSD/120).
                           Example 3 above occurs at  an existing  source
                           which did not have a  new source construction
                           permit under the SIP  (see  PSD/120).
                           An iron foundry is considered to be  one of
                           the 28 PSD categories (i.e., a  secondary
                          metal  production plant) if it uses scrap
                          metal  to  produce iron, even if  the metal  is
                           poured into molds.
                           Applicability of offset requirements from new
                           source with a SIP construction  permit  whose
                           permit conditions did not  prohibit subsequent
                           increases.
                           A whiskey distillery  is not considered to be
                           one of the 28 PSD categories, specifically  a
                           chemical  process plant. A chemical  process
                           plant is  any establishment in Major  Group 28
                           of the SIC Code.  Beverage distilleries are
                           in Major  Group 20.
                           A proposed increase in emissions is  not sub-
                           ject to PSD unless the triggering  increase
                           is of the same pollutant as the one  for
                          which a significant increase results.   (Also
                           see PSD/120).
                           The 50 ton per year exemption under 40 CFR
                           52.21(i )(7) is pollutant specific.
                           Ooerating permits are not  Federally  enforce-
                           aole;  however, tne State can  'moart  reaerally
2)
3)
4)
5)
6)
7)
3)
9)

-------
                           enforceable conditions to a construction
                           permit issued for the source in accordance
                           with the Mew Source Review procedures of the
                           SIP at the time of issuance.
       CR:          3.16 [Hard Copy]; 2.15; 5.9; 10.22; 12.9; 13.5

4.17   DATE:        June 24, 1981
       SUBJECT:     Application of PSD for Stationary Gas Turbines that
                    Switch from Middle Distillates to Natural Gas
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          Mr. Amasjit S. Gill
                    Gas Turbine Division
                    General Electric Company
       DISCUSSION:  See PSD/128
       CR:          None

4.18   DATE:        July 13, 1981
       SUBJECT:     PSD Applicability for Ashland Chemical's Maleic
                    Anhydride Plant  in Neal, West Virginia
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          W. Ray Cunningham, Chief
                    Air Media and Energy Branch, Region III
       DISCUSSION:  See PSD/130
       CR:          None

4.19   DATE:        July 31, 1981
       SUBJECT:     Summary of PSD Policy Determinations
       FROM:        Thomas W. Devine
                    Air and Hazardous Materials  Division,  Region IV
       TO:          All State/Local  Directors
                    Region IV
       DISCUSSION:  Summary of PSD policy determinations during  the
                    period from February 5, 1981 to  July 15, 1981:
                       1)   Is a source reactivation  subject to ?SD (see
                           PSD/117).
                       2}   The complete  list of  organic compounds not
                           considered photochemically reactive and, there-
                           fore,  not a VOC  for purposes of PSD is
                           detailed.
                       3)   Construction  of  a major source  in a nonattain-
                           ment area projected to be attainment  (based
                           on the approved  Part  D SIP)  before startup,
                           is not subject to PSD or  Part D requirements.
                       4)   Determination  of modeling baseline air quality
                           levels for 3-hour and 24-hour averages is
                           discussed.
                       S)   If an  ambient  monitor has been  shut down,
                           data obtained  may still be deemed pertinent
                           and  useful  under certain  conditions.
                       6)   A minor source which  locates within a PSD
                           area and  impacts a nearby PSD area may
                           trigger baseline and  consume increment
                           within each of :he areas  jnaer  certain
                           conditions.

-------
                       7)  A minor  source which  adds  a major emission
                          point could  not  escape  PSD by  considering
                          previous decreases which cause the  net
                          increase to  be less than the major  source
                          threshold.
                       8)  An  existing  source may  change  its designa-
                          tion from major  to minor by accepting a
                          Federally enforceable limitation.
                       9)  The 50 tons  per  year  exemption under 40 CFR
                          52.21(i)(7)  cannot be claimed  for an emission
                          increase of  any  pollutant  unless the increase
                          of  each  pollutant  is  less  than 50 tons per
                          year.
                      10)  The air  quality  de minimus level for N02  is
                          14  g/m3 annual  average, as stated  in the
                          published version  of  the regulation.
       CR:           2.18 [Hard Copy]; 3.19; 5.10;  6.11;  7.5; 10.23

4.20   DATE:         August 26, 1981
       SUBJECT:      PSD Applicability of Product Storage  Change at
                    Petroleum  Storage Facility
       FROM:         Edward E.  Reich, Director
                    Division of Stationary  Source Enforcement
       TO:           Steven A.  Goldberg, Attorney
                    Hogan & Hartson
       DISCUSSION:   See PSD/133
       CR:           None

4.21   DATE:         January 5, 1983
       SUBJECT:      Accumulations  of Emissions
       FROM:         Richard Biondi, Chief
                    Regulations Analysis Section
                    Stationary Source  Compliance Division
       TO:           Michael Johnston,  Chief
                    Air Operations  Section, Region X
       DISCUSSION:   See PSD/138
       CR:           None

4.22   [DELETED]

4.23   DATE:         April 7,  1983
       SUBJECT:      PSD Applicability  Determination  - Southwestern Public
                    Service  Company
       FROM:         Edward E.  Reich,  Director
                    Stationary Source  Compliance Division;
                    Acting Associate  General  Counsel
                    Air, Noise and Radiation  Division
       TO:           Allyn M.  Davis, Director
                    Air and  Waste  Management  Division, Region VI;
                    Paul Seals,  Regional Counsel
                    Region VI
       DISCUSSION:  See PSD/142
       CR:           None

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4.24   DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:

4.25   DATE:
       SUBJECT:

       FROM:
       TO:
       DISCUSSION:
       CR:

4.26   DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:
       CR:

4.27   DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:

4.28   DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:
June 2,  1983
Net Emission  Increase Under PSD
Sheldon  Meyers, Director
Office of Air Quality Planning and Standards
David P. Howekamp, Director
Air Management Division, Region IX
See PSD/145
None

June 7,  1983
Region IV Policy Concerning Applicability of Coal
Conversions to EPA PSD Regulations
James T. Wilburn, Chief
Air Management Branch
Air and Waste Management Division, Region IV
Richard E. Grusnick, Director
Air Program
Alabama Department of Environmental Management
Fuel conversion PSD applicability - "capable of
accommodating" criteria for exemption and require-
ments for major modifications.
None

July 11, 1983
Request by the Hawaiian Electric Co. to Burn 2.0%
Sulfur Fuel  Oil at their Kahe Units #1-5
Sheldon Meyers, Director
Office of Air Quality Planning and Standards
David P. Howekamp, Director
Air Management Division, Region IX
See PSD/146
11.4

July 28, 1983
PSD Applicability Pulp and Paper Mill
Edward E. Reich, Director
Stationary Source Compliance Division
Michael  M. Johnston, Chief
Air Operations Section, Region X
See PSD/147
None

July 28, 1983
Bridgeport Harbor Coal  Conversion
Edward E. Reich, Director
Stationary Source Compliance Division
Harley Laing, Director
Air Management Division, Region I
See PSD/148
None

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4.29   DATE:         August 29, 1985
       SUBJECT:      Buckeye Cellulose Modification
       FROM:         Bruce P. Miller,  Acting Chief
                    Air Programs Branch
                    Air & Waste Management Division, Region  IV
       TO:          C.H. Fancy, P.E., Deputy Chief
                    Bureau of Air Quality Management
                    Florida DER
       DISCUSSION:   1)  Emission reductions not used up in  a PSD review
                    may not be banked for netting out of a  future PSD
                    review.
       CR:          None

4.30   DATE:         January 19, 1981
       SUBJECT:      Clarification of  PSD regulations as amended in 40 CFR
                    52.21 (1980)
       FROM:         Douglas M. Costle
       TO:          Andrea S. Bear, Esquire
                    Hunton and Williams, Washington, D.C.
       DISCUSSION:   1}  An increase in actual  emissions would contribute
                        exclusively to the baseline concentration if the
                        increase occurs:  (a)  as a result  of a  fuel  switch
                        that is not a major modification,  (b) between
                        8/7/77 and the applicable baseline date, and (c)
                        at any major  stationary source whose construction
                        commenced on  or before January 6,  1975.
                    2)  Discussion of whether decreases in  actual emis-
                        sions that occur as a result of reductions in
                        capacity utilization not resulting from demolition
                        and that occur between January 6,  197b, and the
                        applicable baseline date would affect increment
                        consumption.   Includes discussion of the condi-
                        tions under which short-of-demolition reduction
                        in capacity utilization amounts to construction.
                    3)  Guidance on the meaning of "capable of accommoda-
                        ting" will be provided by EPA upon '•eceiving
                        specific fact patterns supplied by the quest:one".
                    4)  EPA states its intent to delete the. requirement
                        that, for pollutants not having specific "de
                        minimus" levels set, any emissions rate at all is
                        significant upon promulgation of technical and
                        conforming amendments.
                    5)  The regulations do provide that a "minor" addi-
                        tion to a "minor" source would escape PSD review,
                        and, if it occurred before the applicable base-
                        line date, would contribute to the baseline
                        concentration.
                    6)  Sources may qualify for more than one exemption
                        unde" Section 52.21(1)(7) of 45 FR 52739 for any
                        major modification that meets certain conditions
                        from the air quality assessments relating to
                        Class II areas.
       CR:          5.21; 13.7

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a.31   DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:

       CR:

4.32   DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:
4.33
CR:

DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
       CR:

4.34   DATE:
       SUBJECT:

       FROM:

       TO:


       DISCUSSION:
April 25, 1984
PSD Applicability to Coal Conversions
Ed Reich, Director
Stationary Source Compliance Division, OAQPS
Directors
Air Management Divisions, Regions I - X
Memo recites EPA draft policy on the applicability of
PSD to coal  conversions.
None

July 7, 1986
Prevention of Significant Deterioration (PSD) Defi-
nition of Modification
Gerald A. Emison, Director
OAQPS
Directors
Air Management Division, Regions I-X
The memo discusses why a major modification would
result from the replacement of wet scrubbers with
baghouses that would improve control  of particulate
matter, but  allow a significant net increase of
sulfur dioxide emissions.  The proposed change would
be subject to PSD review.  The memo also discusses
whether the modification requires review under NSPS
regulations.
None

October 13,  1986
Applicability of PSD to Portions of a Plant Con-
structed in Phases Without Permits
Darryl D. Tyler, Director
Control Programs Development Division
David Kee, Director
Air Management Division, Region V
The memo discusses the applicability of PSD "eview
to a minor source that becomes a major through a
series of modifications.  A BACT -eview applies only
to the emissions units or modifications that define
a major modification to an existing major source or
a new major source unless the source has made a
deliberate effort to circumvent review.
None

October 17,  1986
Application of NSR rules to the conversion to coal at
the Hibbard Station Units 3 and 4
Steve Rothblatt, Chief
Air and Radiation Branch
Louis M. Chamberlain
Division of  Air Quality, Minnesota Pollution Control
Agency
Discusses the circumstances under which a conversion
to coal of two units at the Hibbard Station would
cause the plant to be subject to PSD regulations for

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4.35
CR:

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
       CR:
sulfur aioxide.  Also, discusses the  term "capable of
accommodating" and the implications  of  the  construc-
tion ban in this case.
3.24; 12.11

December 1, 1986
Need for Emission Cap on Complex Netting Sources
Darryl D. Tyler, Director
Control Programs Development Division
David Kee, Director
Air Management Division, Region V
Memo provides further guidance on the appropriate
context for defining an emissions decrease  for PSD,
and on the level of administrative effort appropriate
to make an emissions decrease permanent and enforce-
able.
None

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5.  PSD:  GEOGRAPHIC/POLLUTANT APPLICABILITY
5.1
5.2
5.3

5.4

5.5

5.6
5.7
[REPLACED]
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:

[REPLACED]
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:

[DELETED]
[DELETED]

[REPLACED]
DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
CR:
                    March 4,  1981.
                    PSD Applicability to  Nonattalnment  Pollutants
                    Edward E.  Reich,  Director
                    Stationary Source Compliance Division
                    Julio Morales-Sanchez,  Director
                    Enforcement Division, Region II
                    See PSD 123
                    10.21 [Hard Copy];  12.8
                    October 23,  1979
                    B.F.  Goodrich - PSD Modification
                    Edward E.  Reich, Director
                    Stationary Source Compliance Division
                    Stephen A.  Dvorkin, Chief
                    General Enforcement Branch, Region II
                    See PSD/94
                    12.6 [Hard Copy]
[MOVED TO 1.7]
May 27, 1980
New Source Review Requirements in Areas  Unclassified
for Ozone
Richard G. Rhoads, Director
Control Programs Development Division
Allyn M. Davis, Director
Air and Hazardous Materials Division, Region  VI
The memo lists options for persons desiring to  con-
struct a new major source of VOC in a rural area
designated as "unclassifiable" for ozone, and sum-
marized requirements for such a permit.
None

June 9, 1980
PSD Applicability:  Asphalt Concrete Plants
Edward E. Reich, Director
Division of Stationary Source Enforcement
F.W. Giaccone, Chief
Air Facilities Branch, Region II
See PSD/111
2.11

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5.8    DATE:         March  17,  1981
       SUBJECT:      PSD  Evaluation  of Secondary  Emissions  for Houston
                    Lighting and Power
       FROM:         Edward F.  Tuerk,  Acting  Assistant Administrator
                    Office of  Air,  Noise,  and Radiation
       TO:           Allyn  M. Davis,  Director
                    Air  &  Hazardous Materials Division, Region VI
       DISCUSSION:   See  PSD/126
       CR:           None

5.9    DATE:         March  31,  1981
       SUBJECT:      Summary of PSD  Policy  Determinations
       FROM:         Thomas W.  Devine
                    Air  and Hazardous Materials  Division,  Region IV
       TO:           All  State/Local  Directors
                    Region IV
       DISCUSSION:   Summary of PSD  policy  determinations during the  period
                    from November 13, 1980 to January 12,  1981:
                       1)   Treatment of fugitive emissions with regard
                           to  PSD applicability.
                       2)   A proposed physical change must,  by itself,
                           result in a net increase  greater  than de
                           minimus in order to be subject  to PSD (see
                           PSD/120).
                       3)   Allowable emissions can be presumed to  repre-
                           sent actual emissions for new  sources and,
                           therefore, an increase in production at the
                           PSD source is not an  increase  in  actual
                           emissions.  (Also see PSD/120}.
                       4)   Example 3 above occurs at an existing source
                           which did not have a  new  source construction
                           permit under the SIP  (see PSD/120).
                       5)   An  iron foundry is considered  to  be one  of
                           the 28 PSD categories (i.e., a  secondary
                           metal production plant) if  it  uses  scrap
                           metal to produce iron, even  if the  metal  is
                           poured into molds.
                       6)   Applicability of offset requirements  from new
                           source with a SIP construction permit whose
                           permit conditions did not prohibit subsequent
                           increases.
                       7)   A whiskey distillery is not  considered  to be
                           one of the 28 PSD categories,  specifically a
                           chemical process plant.  A chemical  process
                           plant is any establishment in  Major Group 28
                           of  the SIC Code.  Beverage  distilleries are
                           in Major Group 20.
                       8)   A proposed increase in emissions is not sub-
                           ject to PSD unless the triggering increase
                           is of the  same pollutant as  the one for
                           which a significant increase results.   (Also
                           see PSD/120).
                       9)  The 50 ton per year exemption under 40 CFR
                           52.21(i)(7) is pollutant specific.

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5.10
CR:

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
       CR:
  10)  Operating permits are not Federally enforce-
       able; however, the State can impart Federally
       enforceable conditions to a construction
       permit issued for the source in accordance
       with the New Source Review procedures of the
       SIP at the time of issuance.
3.16 [Hard Copy]; 2.15; 4.15; 10.22; 12.9; 13.5

July 31, 1981
Summary of PSD Policy Determinations
Thomas W. Devine
Air and Hazardous Materials Division, Region IV
All State/Local Directors
Region IV
Summary of PSD policy determinations during the period
from February 5, 1981 to July 15, 1981:
   1)  Is a source reactivation subject to PSD (see
       PSD/117).
   2)  The complete list of organic compounds not
       considered photochemically reactive and, there-
       fore, not a YOC for purposes of PSD is
       detailed.
   3)  Construction of a major source in a nonattain-
       ment area projected to be attainment (based
       on the approved Part D SIP) before startup,
       is not subject to PSD or Part D requirements.
   4)  Determination of modeling baseline air quality
       levels for 3-hour and 24-hour averages is
       discussed.
   5)  If an ambient monitor has been shut down,
       data obtained may still be deemed pertinent
       and useful under certain conditions.
   6)  A minor source which locates within a PSD
       area and impacts a nearby PSD area may
       trigger baseline and consume increment
       within each of the areas under certain
       conditions.
   7)  A minor source which adds a major emission
       point could not escape PSD by considering
       previous decreases which cause the net
       increase to be less than the major source
       threshold.
   8)  An existing source may change its designation
       from major to minor by accepting a Federally
       enforceable limitation.
   9)  The 50 tons per year exemption under 40 CFR
       52.21(i)(7) cannot be claimed for an emission
       increase of any pollutant unless the increase
       of each pollutant is less than 50 tons per
       year.
  10)  The air quality de minimus level for N02 is
       14  g/m3 annual average, as stated in the
       published version of the regulation.
2.18 [Hard Copy]; 3.19; 4.19; 6.11; 7.5; 10.23

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5.11
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
5.12
CR :

DATE:
SUBJECT:
FROM:

TO:
DISCUSSION:
CR:
June 29, 1983
Exclusion of Exempt Solvents from VOC Calculations
G. T. Helms, Chief
Control Programs Operations Branch
All Regional Chiefs
Air Branches
This memorandum is to clarify that exempt solvents
should be subtracted out from coatings just like
water, with the ultimate value of interest being
the mass of VOC per unit volume of coating less
exempt solvent and water.  Attached are examples of
calculations related to the VOC content of coatings
with exempt solvents.
None

February 9, 1981
Petitions for Review of PSD Regulations
Michael Trutna, Chief
New Source Review Section
All New Source Review Contacts
Petitions for review of PSD regulations.
- Utility Air Regulatory Group Petition
1)  Consideration is given to the increase in
    actual emissions resulting from a fuel switch
    and the resulting impact on increment consump-
    tion.
    The term "demolition" as applied to reduction
    in capacity utilization and the corresponding
    effect on increment consumption.
    The definition of major modification excludes
    any voluntary fuel switch at a source deemed
    "capable of accommodating" and compliance with
    certain other conditions.
    Definition of term "significant" as applied to
    de minimus emission levels both for pollutants
    listed and those not listed.
    A "minor" addition t
    contribute to the baseline concentration if it
    occurred before the applicable baseline date;
    however, it would not trigger PSD review.
    Section 52.21(1) (7) exempts any major modifica
    tion, which meets certain conditions, from the
    air quality assessments relating to Class II
    areas.  A source may claim more than one such
    exemption.

-  American Petroleum Institute (API) Petition.
   See  {2} and (4) above.

-  American Mining Congress  (AMC) Petition.
   1)  The  treatment of fugitive emissions, with
       regard to a  source's designation as  "major"
        for PSD purposes, is further clarified.
4.14 [Hard Copy]; €.10;  13.4
             2)
             3)
             4)
                    5)
             6)
                                         "minor" source would

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5.20   DATE:         June 28,  1985
       SUBJECT:      Seasonal  Afterburner Policy,  Applicability  of
                    Part D New Source Review Requirements
       FROM:         Robert D. Bauman, Chief
                    Standards Implementation Branch,  CPDD
       TO:           William S. Baker, Chief
                    Air Programs Branch, Region II
       DISCUSSION:  Applicability discussion for sources  using  EPA
                    Seasonal  Afterburner Policy
       CR:           2.20; 22.5 [Hard Copy]

5.21   DATE:         January 19, 1981
       SUBJECT:      Clarification of PSD regulations  as  amended in 40  CFR
                    52.21 (1980)
       FROM:         Douglas M. Costle
       TO:           Andrea S. Bear,  Esquire
                    Hunton and Williams, Washington,  D.C.
       DISCUSSION:  1)  An increase  in actual  emissions would contribute
                        exclusively  to the baseline concentration  if the
                        increase occurs:  (a)  as  a  result  of a  fuel switch
                        that is not  a major modification,  (b) between
                        8/7/77 and the applicable baseline date, and (c)
                        at any major stationary source whose construction
                        commenced on or before January 6,  1975.
                    2}  Discussion of whether  decreases  in actual  emis-
                        sions that occur as a  result  of  reductions in
                        capacity utilization not  resulting from demolition
                        and that occur between January 6,  1975,  and the
                        applicable baseline date  would affect increment
                        consumption.  Includes discussion  of the condi-
                        tions under  which short-of-demolition reduction
                        in capacity  utilization amounts  to construction.
                    3)  Guidance on  the meaning of  "capable of  accommo-
                        dating" will be provided  by EPA  upon receiving
                        specific fact patterns supplied  by the  questioner.
                    4)  EPA states its intent  to  delete  the requi~ement
                        that, for pollutants not  having  specific "de
                        minimis" levels set, any  emissions "ate at all is
                        significant  upon promulgation of  technical and
                        conforming amendments.
                    5)  The regulations do provide  that  a  "minor"  addition
                        to a  "minor" source would escape  PSD review, and,
                        if it occurred before  the applicable baseline
                        date, would  contribute to the baseline  concentra-
                        tion.
                    6)  Sources may  qualify for more  than  one exemption
                        under Section 52.21(i)(7) of  45  FR 52739 for any
                        major modification that meets certain conditions
                        from the air quality assessments  relating  to
                        Class II areas.
       CR:           4.30 [Hard Copy]; 13.7

-------
5.22   DATE:         June 18,  1986
       SUBJECT:      Exempt Ton of dimethyl  acetamide  from  regulation  unae"
                    PSD
       FROM:         Bruce P.  Miller,  Acting  Chief
                    Air Programs Branch, Air,  Pesticides  and  Toxics  Manage-
                    ment Division
       TO:           Mr. J.  Preston Campbell, P.E., Environmental  Engineer
                    Bureau of Air Quality  Control, S.C. Dept.  of  Health
                    and Env.  Control
       DISCUSSION:   Letter reiterates policy on exempt  solvents  explained
                    in a July 31, 1981,  letter fpom  Thomas  W.  Devine,  and
                    contained at 2.18 in this document.   Dimethyl
                    acetamide is not  exempt  from PSD review.
       CR:           None

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o.  PSD:  3ASELINE,INCREMENT CONSUMPTION/IMPACT ANALYSIS
6.1
6.2
6.3

6.4

6.5

6.6

6.7
6.8
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:

[REPLACED]
DATE:
SUBJECT:

FROM:

TO:

DISCISSION:
CR:

[DELETED]

[DELETED]

[DELETED]

[DELETED]

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:

FROM:

TO:
DISCUSSION:
May 23, 1977
Applicability of PSD Increments Over Company P-operty
Walter C.  Barber, Director
Office of  Air Quality Planning and Standards
Gordon M.  Rapier, Director
Ai" and Hazardous Materials Division, Region III
See PSD/29
None
                    April  29,  1980
                    PSD Analysis for SIP  Relaxation in  Metropolitan
                    Boston
                    Edward E.  Reich, Director
                    Division of Stationary Source Enforcement
                    Linda  Murphy,  Chief
                    Stationary Source Section, Region I
                    See PSD/107
                    None
       CR:
March 5, 1980
Establishment of Baseline Date for PSD Areas
Richard D. Wilson, Deputy Asst. Administrator
Office of General Enforcement
Robert L. Davies, Asst. Administrator
Office of Fuels Conversion, DOE
See PSD/100
1.2

March 13, 1980
Question from Otto Pearson
(South Carolina State Aaency)
Bill Beal
Control Programs Development Division
Files
Regarding fuel-switching, under the regulations
proposed September 5, 1979, there would be no increment
consumption  if the switch was made before the baseline
date had been established.  If the fuel switch occurred
after the baseline date, howeve-, there would be
increment consumption.
None

-------
6.9
6.10
DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:
FROM:

TO:
DISCUSSION:
       CR:
April 11, 1980
Exemptions from PSD Permit Requirements for Coal
Conversions Resulting from DOE Pronibition Orders
Edward E. Reich, Director
Division of Stationary Source Enforcement
Howard R. Helm, Chief
Air Programs Branch, Region III
See PSD 104
4.12 [Hard Copy]; 13.3

February 9, 1981
Petitions for Review of PSD Regulations
Michael Trutna, Chief
New Source Review Section
All Regional New Source Review Contacts
Petitions for review of PSD regulations.
- Utility Air Regulatory Group Petition
   1)  Consideration is given to the increase in
       actual emissions resulting from a fuel
       switch and the resulting impact on increment
       consumption.
   2)  The term "demolition" as applied to reduction
       in capacity utilization and the corresponding
       effect on increment consumption.
   3)  The definition of major modification
       excludes any voluntary fuel switch at a
      'source deemed "capable of accommodating"
       and compliance with certain other conditions.
   4)  Definition of term "significant" as
       applied to de minimus emission levels
       both for pollutants listed and those not listed.
   5)  A "minor" addition to a "minor" source
       would contribute to the baseline
       concentration if it occurred before the
       applicable baseline date; however, it
       would not trigger PSD review.
   6)  Section 52.21(i)(7) exempts any major
       modification, which meets certain
       conditions, from the a-i r quality assessments
       relating to Class II areas.  A source may
       claim more than one such exemption.

- America Petroleum Institute (API) Petition.
  See (2) and (4) above.

- American Mining Congress (AMC) Petition
   1)  The treatment of fugitive emissions, with
       regard to a source's designation as
       "major" for PSD purposes, is further clarified.
4.14 [Hard Copy]; 13.4

-------
6.11   OATE:        July 31, 1981
       SUBJECT:     Summary of PSD Policy Determinations
       FROM:        Thomas W. Devine
                    Air and Hazardous Materials Division, Region IV
       TO:          All State/Local Directors
                    Region IV
       DISCUSSION:  Summary of PSD policy determinations during the period
                    from February 5, 1981 to July 15, 1981:
                       1)  Is a source reactivation subject to PSD (see
                           PSD/117).
                       2)  The complete list of organic compounds not
                           considered photochemically reactive and, there-
                           fore, not a VOC for purposes of PSD is detailed.
                       3)  Construction of a major source in a nonattain-
                           ment area projected to be attainment (based on
                           the approved Part D SIP) before startup, is
                           not subject to PSD or Part D requirements.
                       4)  Determination of modeling baseline air quality
                           levels for 3-hour and 24-hour averages is
                           discussed.
                       5)  If an ambient monitor has been shut down, data
                           obtained may still be deemed pertinent and use-
                           ful  under certain conditions.
                       6)  A minor source which locates within a PSD area
                           and impacts a nearby PSD area may trigger base-
                           line and consume increment within each of the
                           areas under certain conditions.
                       7)  A minor source which adds a major emission
                           point could not escape PSD by considering
                           previous decreases which cause the net increase
                           to be less than the major source threshold.
                       8)  An existing source may change its designation
                           from major to minor by accepting a Federally
                           enforceable limitation.
                       9)  The 50 tons per year exemption under 40 CFR
                           52.21(1)(7) cannot be claimed for an emission
                           increase of ajiy_ pollutant unless the increase
                           of each pollutant is less than 50 tons per
                           year.
                      10)  The air quality de minimus level for N02 is
                           14  g/m3 annual average, as stated in the
                           published version of the regulation.
       CR:          2.18 [Hard Copy]; 3.19; 4.19; 5.10; 7.5; 10.23

6.12   DATE:        April 1, 1982
       SUBJECT:     Response Concluding that Flares are not Considered
                    "Stacks" under the Stack Height Regulations
       FROM:        Darryl  D. Tyler, Acting Director
                    Control Programs Development Division
       TO:          Ms. S.  Kay Phillips
                    Shell Oil Company
       DISCUSSION:  Response concluding that flares are not considered
                    "stacks" under the stack height regulations and
                    ramifications on ambient air quality modeling.

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       CR:
             None
6.13   DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:

6.14   DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:
       CR:
6.15
6.17
6.18
DATE:
SUBJECT:
FROM:
       TO:

       DISCUSSION:

       CR:

6.16   [DELETED]
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:



CR:

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:

CR:
             May 5, 1982
             A.I. DuPont Institute PSD  Permit
             Edward E.  Reich,  Director
             Division of Stationary Source  Enforcement
             W. Ray Cunningham,  Chief
             Air Programs & Energy Branch,  Region  III
             See PSD/135
             11.5 [Hard Copy];  10.25

             July 9. 1982
             Reactivation of Amerada Hess Corporation's Port
             Reading Facility  and PSD Review
             Edward E.  Reich,  Director
             Division of Stationary Source  Enforcement
             Conrad Simon,  Director
             Air & Waste Management Division, Region II
             See PSD/136
             3.21 [Hard Copy]

             May 3, 1983
             Determination of  Air Quality Degradation
             Alexandra  B. Smith, Director
             Air and Haste Management Division, Region X
             Sheldon Meyers, Director
             Office of  Air Quality Planning and Standards
             The determination of air quality degradation  is
             discussed  in terms  of amount of PSD  increment consumed.
             None
             January 20,  1984
             PSD Increment Consumption  Calculations
             John R. O'Connor,  Acting Director
             Office of Air Quality  Planning and Standards
             Thomas W. Devine,  Director
             Air and Waste Management Division, Region  IV
             Regarding PSD increment consumption  calculations,  the
             spatial and  temporal  calculation of  PSD  increments  is
             appropriate  for all  cases  where PSD  increment
             consumption  calculations need to be  made.
             None

             June 11, 1984
             Applicability of PSD  Increments to Building Rooftops
             Joseph A. Cannon,  Assistant Administrator
             Air and Radiation
             Charles R. Jeter
             Regional Administrator, Region IV
             Memo discusses whether the PSD system intended  that
             PSD increments be  monitored at rooftop  level.
             None

-------
6.19   DATE:         May 3,  1985
       SUBJECT:      NSR Advisory Memorandum II:   TSP  PSD  Increment  Con-
                    sumption  in North  Carolina
       FROM:         Gary McCutchen,  Senior Engineer
                    New Source Review  Section,  SIB, CPDD
       TO:           Mike Trutna, Chief
                    New Source Review  Section
       DISCUSSION:   The memo  includes  a discussion  of whether  a  new emis-
                    sions limit that causes no  change in  actual  emissions
                    consumes  PSD increment. Further, it  contains discus-
                    sions of  annual  average increment consumption,  24-hour
                    increment consumption  calculations, and  the  use of
                    test data for this issue.
                    None

                    January 29, 1987
                    Implementation of  the  Revised Modeling Guideline for
                    Prevention of Significant Deterioration  (PSD)
                    Darryl  D. Tyler, Director
                    Control Programs Development  Division
                    Directors, Air Divisions
                    Regions NX
                    The memo  describes the specific mechanism  by which
                    the revised PSD  air quality modeling  guidelines
                    should be implemented  for each  type of program
                    approved  to review PSD permits  (EPA,  State,  or  local
                    agency programs, depending  on whether and  to whom EPA
                    has transferred  the PSD program).
       CR:           15.2

6.21   DATE:         May 29, 1987
       SUBJECT:      UNAMAP 6  Dispersion Modeling  with Building Wake Effects
       FROM:         Joseph A. Tikvart, Chief
                    Source Receptor Analysis Branch
       TO:           Bruce P.  Miller, Chief
                    Air Programs Branch, Region IV
       DISCUSSION:   The memo  provides  a discussion  of which  background
                    (off-site) sources should  be  explicitly  modeled in  a
                    regulatory analysis, especially if PSD increment con-
                    sumption  is involved.
       CR:           None
       CR:

6.20   DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:

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7.  PSD:  AMBIENT MONITORING/ANALYSIS
7.1

7.2
7.3

7.4
7.5
[DELETED]

DATE:
SUBJECT:
FROM:

TO:

THRU:

DISCUSSION:
CR:

[DELETED]

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
July 6, 1979
EPA Quality Assurance Policy Statement
James H. Finger, Director
Surveillance and Analysis Division, Region IV
All Division Directors and Office Chiefs
Region IV
John C. White, Regional Administrator
Region IV
The Agency quality assurance policy statement provides
general descriptions of program responsibilities and
basic management requirements.  For the purpose of
this policy statement, monitoring is defined as all
environmentally related measurements which are
funded by the EPA or which generate data mandated by
the EPA.
None
(None provided)
PSD Significance Levels for Monitoring
Darryl D. Tyler, Acting Director
Control Programs Development Div-ision
All Regional Directors
Air and Waste Management Divisions
The August 7, 1980, PSD promulgation introduced
significance levels of projected ambient impacts for
the purpose of determining whether a proposed source
or modification would be eligible for an exemption
from the requirement for ambient monitoring [40 CFR
51.24(i)(8) and 52.21(i)(8)].
None

July 31, 1981
Summary of PSD Policy Determinations
Thomas U. Devine
Air and Hazardous Materials Division, Region IV
All State/Local Directors
Region IV
Summary of PSD policy determinations during the period
from February 5, 1981 to July 15, 1981:
   1)  Is a source reactivation subject to PSD (see
       PSD/117).
   2)  The complete list of organic compounds not
       considered photochemically reactive and, there-
       fore, not a VOC for purposes of PSD is detailed.
   3)  Construction of a major source in a nonattain-
       ment area projected to be attainment (based on
       the approved Part 0 SIP) before startup, is
       not subject to PSD or Part* D requirements.

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7.6
7.7
                4)  Determination of modeling baseline air quality
                    levels for 3-hour and 24-hour averages is dis-
                    cussed.
                5)  If an ambient monitor has been shut down, data
                    obtained may still be deemed pertinent and use-
                    ful under certain conditions.
                6)  A minor source which locates within a  PSD area
                    and impacts a nearby PSD area may  trigger base-
                    line and consume increment within  each of the
                    areas under certain conditions.
                7)  A minor source which adds a major  emission
                    point could not escape PSD by considering
                    previous decreases which cause the net increase
                    to be less than the major source threshold.
                8)  An existing source may change its  designation
                    from major to minor by accepting a Federally
                    enforceable limitation.
                9)  The 50 tons per year exemption under 40 CFR
                    52.21(i)(7) cannot be claimed for  an emission
                    increase of any pollutant unless the increase
                    of each pollutant is less than 50  tons per
                    year.
               10)  The air quality de minimus level for N02 is
                    14  g/m3 annual average, as stated in  the
                    published version of the regulation.
CR:          2.18 [Hard Copy]; 3.19; 4.19; 5.10; 6.11; 10.23

DATE:        June 12,  1984
SUBJECT:     Significance Levels for Air Quality Impacts
FROM:        James T.  Mil burn. Chief
             Air Management Branch, Region IV
TO:          Mr. Fin Johnson, Chief
             Air Quality Section, Div. of Env. Management, North
             Carolina NRCD
DISCUSSION:  Letter discusses when significance levels could be
             used such as in determining whether new source impacts
             are existing NAAQS or increment violation, or in
             cases where the impact of the new source  is the first
             incremental impact that carries the total air quality
             above the increment or standard.
CR:          None

DATE:        July 27,  1987
SUBJECT:     Ambient Air Issue from New Jersey Department  of
             Environmental Protection (DEP)
FROM:        G.T. Helms. Chief
             Control Programs Operation Branch
TO:          Williams. Baker, Chief
             Air Branch, Region II
DISCUSSION:  Memo discusses whether property outside of a  property
             lease controlled by a source facility is  considered
             ambient air, both in the case when a physical barrier
             around the lease site is present, and when it is not.
CR:          None

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8.  PSD:  BACT

8.1    [DELETED]
8.2
8.3
8.4
8.5
 DATE:
 SUBJECT:

 FROM:

 TO:

 DISCUSSION:
 CR:

 [REPLACED]
 DATE:
 SUBJECT:
 FROM:

 TO:

 DISCUSSION:
 CR:

 [REPLACED]
 DATE:
 SUBJECT:
 FROM:

 TO:

 DISCUSSION:
CR:

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
       CR:
November 9, 1977
Contingency Plan for FGD Systems During Downtime as a
Function of PSD
Edward E. Reich, Director
Division of Stationary Source Enforcement
G.T. Helms, P.E., Deputy Director
Air and Hazardous Materials Division
See PSD/37
10.3
                    June 22,  1978
                    IPALCO's  Proposed  Patriot,  Indiana, Generating Station
                    Edward E.  Reich, Director
                    Division  of  Stationary  Source  Enforcement
                    Dale S. Bryson, Acting  Director
                    Enforcement  Division, Region V
                    See PSD/54
                    10.1
September 13, 1978
Conditional PSD Permits
Edward E. Reich, Director
Division of Stationary Source Enforcement
Darryl Tyler, Chief
Control Programs Development Division
The purpose of this memorandum is to provide guidance
on whether and under what conditions, conditional
permits can be issued.  Specifically, the amount
and detail of control equipment information required
for submittal before issuance of a PSD permit.
10.2

November 15, 1978
BACT Baseline for Louisa Generating Station
Michael A. Trutna
Control Programs Development Division
Gale A. Wright, P.E., Chief
Technology Analysis Section, Region VII
The baseline level from which BACT for this plant was
determined is clarified.  Although the source may
have filed a complete application before the date of
NSPS proposal, the accepted practice within EPA is to
make the initial presumption* that all power plant
applicants subject to the new PSD regulations can
accomplish emission reductions at least equivalent to
those required under the proposed NSPS revisions.
None

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8.6    [DELETED]
8.7
8.8
8.9
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:
FROM:

TO:
DISCUSSION:
CR:

DATE-:
SUBJECT:

FROM:

TO:
DISCUSSION:
       CR:
8.10   DATE:
       SUBJECT:
       FROM:
       TO:
       DISCUSSION:
       CR:
December 22, 1978
BACT Information for Coal-fired Power Plants
Walter C. Barber, Director
Office of Air Quality Planning and Standards
All Regional Directors
Air & Hazardous Materials Divisions
This memorandum provides an example checklist of the
type and amount of information required from power
plant applicants in order to determine whether the
source is applying BACT.
None

January 4, 1979
Guidance for Determining BACT under PSD
David G. Hawkins, Assistant Administrator
Office of Air, Noise and Radiation
All Regional Administrators
The purpose of the guidelines is to provide the
framework for a-consistent approach in determining
BACT. The guidance is rather general, focusing on
the parameters which should be considered in the
analysis supporting the proposed control system.
The guidelines suggest a significant effort by the
source to provide data and analysis to support a
permit application.
None

January 10, 1979
BACT Determinations for Power Plants
Subject to Revised NSPS
Walter C. Barber, Director
Office of Air Quality Planning and Standards
All Deputy Regional Administrators
For new steam electric power plants where the
proposed NSPS identifies the applicable standard,
all PSD permit decisions regarding BACT and applica-
tion completeness should be made to reflect at
least the level  of stringency contained in this
proposal.
None

(None listed; received at Region IV from Region VI
 on April 12, 1979)
BACT for Fugitive Emissions of Hydrocarbons (Checklist)
(None listed)
(None listed)
This checklist details the work practices and equip-
ment specifications to be included in a plan,
developed and implemented by the applicant, to
control fugitive  emissions of hydrocarbons from a
proposed facility.
None

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       DATE:
       SUBJECT:
       FROM:

       TO:
8.12
       DISCUSSION:
CR:

DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
       CR:

8.13   DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:

       CR:

8.14   DATE:
       SUBJECT:
       FROM:
August 5, 1983
Pollution Control Technical Manual
Howard D. Zeller, Assistant Regional  Administrator
Region IV
T. Devine, Director
Air & Waste Management Division, Region IV
P. Traina, Director
Mater Management Division, Region IV
J. Finger, Director
Environmental Services Division, Region IV
The EPA has published six (6) process-specific
Synthetic Fuel Pollution Control Technical  Manuals
describing several synfuels processes (three  oil
shale and three coal).
None

August 15. 1986
North County Resource Recovery Associates PSD Appeal
No. 85-2
David P. Howekamp, Director
Air Management Division, Region 9
Lee M. Thomas, Administrator
U.S. EPA
This memo is a response to the 6/3/86 remand  of
Region 9's April 2, 1985, determination to  issue  a
PSD permit to the North County Resource Recovery
Associates for the construction of  a  1,000  tpd resource
recovery facility.  The remand charged Region 9 with
reconsidering the effects of unregulated pollutants
when making PSD determinations.  Region 9 concluded
that no greater controls for the regulated  pollutants
could be applied that would be more effective in
reducing the emissions of unregulated pollutants.
None

September 10, 1986
Information .regarding the June 3, 1986, remand of the
North County Resource Recovery Associates PSD Permit
in San Marcos, California
David P. Howekamp, Director
Air Management Division, Region IX
Mr. R.J. Sommerville, Air Pollution Control Officer
San Diego County Air Pollution Control District
The memo discusses EPA's suggestions  for determining
BACT and permitting sources of unregulated pollutants.
None

September 11, 1986
Draft Prevention of Significant Deterioration (PSD)
Guidance for Impacts of the North County Resource
Recovery PSD Remand
Darryl D. Tyler, Director
Control Programs Development Division

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       TO:
       DISCUSSION:
6.15
CR:

DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
8.16
CR:

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
8.17
CR:

DATE:
SUBJECT:
       FROM:

       TO:
       DISCUSSION:
       CR:
Winston A.  Smith, Director
Air, Pesticides, ana Toxics Management Division,
Region IV
This memo responds to comments by Region  IV  on draft
guidance on this subject,  especially concerns  about
the applicability of the remand and the need for  a
consistent scientific basis to use in determining
negative health effects of unregulated pollutants.
See September 22, 1987, memo from Gerald  Emison for
current EPA policy guidance.
None

April 22, 1987
Huntsville Incinerator - Determining Best Available
Control Technology (BACT)
Gary McCutchen, Chief
New Source Review Section, CPDD, OAQPS
Bruce P. Miller, Chief
Air Programs Branch, Region IV
The memo reviews and comments on several  significant
issues and questions, especially in relation to
economic arguments in BACT analysis, raised  by the
Region's review of a BACT determination made by the
Alabama Department of Environmental Management for
the proposed Huntsville incinerator facility.
None

May 14, 1987
Salt Water Drift from Cooling Towers
Gary D. McCutchen, Chief
New Source Review Section, CPDD, OAQPS
Bruce P. Miller, Chief
Air Programs Branch, Region IV
This memo describes, for a particular case,  whether
current cooling  tower emissions would have represented
BACT at the original permit application time eight
years previous to the memo.  EPA responded that such
a determination  appears appropriate, but should not be
considered to be a precedent because it leaves many
other important  issues undecided.
None

June 3, 1987
Administrative Order Under Section 167 of the Clean
Air Act for Lake County, Florida, Maste-to-Energy
Facility
Jack E. Ravan, Regional Administrator
U.S. EPA, Region IV '
Mr. Halt Walters, President
NRG/Recovery Group, Lakeland, Florida
Finding of deficiency of permit issued on 9/24/86 by
the Florida Department of Environmental Regulation
for  the  construction of the Lake County Maste-to-
Energy  facility  due  to inadequate BACT deterciination
for  control of  sulfur  dioxide emissions, and  for  lack
of  consideration of emissions of  unregulated  pollu-
tants  such as  hydrogen  chloride and  dioxin.
None

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8.18   DATE:         June 23,  1987
       SUBJECT:      Administrative  Order for  Reconsideration by Region IX
                    of Concurrence  with  PSD Permit  Issued on November 17,
                    1986,  for the Honolulu Resource Recovery Facility, a
                    Municipal Waste Burner
       FROM:         Lee Thomas,  Administrator
                    U.S. EPA
       TO:           U.S. EPA, Region IX
       DISCUSSION:   Permit concurrence  is remanded  based on inappropriate
                    BACT determination  for sulfur dioxide and inadequate
                    analysis  on  impact  of controls  on  emissions or unregu-
                    lated pollutants.
       CR:           None

8.19   DATE:         July 24,  1987
       SUBJECT:      Calculating  Amortized Capital Costs
       FROM:         Robert D. Bauman, Chief
                    Standards Implementation  Branch, CPDD, OAQPS
       TO:           Stephen H. Rothblatt, Chief
                    Air and Radiation Branch, Region V
       DISCUSSION:   Unless a  source can offer compelling data to  the con-
                    trary, the useful  life of a control option should be
                    selected  from one  of the  following:  (a) for  process-
                    related controls, use either the NSPS/NESHAP  BID, or
                    the IRS Class Life  Asset  Deterioration Range  System
                    guideline with  a mid-point estimate  (if no NSPS/NESHAP
                    applies), and (b)  for add-on controls, use the EAB
                    "Control  Cost Manual."  The appropriate annual interest
                    rate is also discussed.
       CR:           None

8.20   DATE:         July 28,  1987
       SUBJECT:      Issues Concerning Best Available Control Technology
                    (BACT) Determinations
       FROM:         Gary McCutchen, Chief
                    New Source Review Section, CPDD, OAQPS
       TO:           Mr. Richard  E.  Grusnick,  Chief
                    Air Division, Alabama Department of  Environmental
                    Management
       DISCUSSION:   (1)  The  role of NSPS in  BACT determinations  - des-
                    cribes the reasons  why BACT determinations almost
                    always should be more stringent than NSPS  for any
                    given source.
                    (2)  The  relationship between BACT and air quality
                    impacts - BACT  is  a specific requirement  for  a PSD
                    permit regardless of air  quality  impact or amount  of
                    increment consumed, provided all  else was  acceptable.
       CR:           None

8.21   DATE:         September 22, 1987
       SUBJECT:      Implementation of North County Resource Recovery PSD
                    Remand
       FROM:         Gerald A. Emison,  Director
                    Office of Air Quality Planning and Standards

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TO:          Directors
             Air Management Divisions, I - IX
DISCUSSION:  The purpose of this memorandum is to advise of the
             impact of the PSD remand involving the North County
             Resource Recovery Project on PSD permitting and to
             provide implementation guidance.
CR:          None

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                         Additional  New Source Review Notebook  Entry
            Discussion Number:  8.22
Regulatory Citation (current):  40 CFR 52.21(j)
                        (old)
                         Date:  November 19,  1987
                           To:  J.  David Sullivan,  Chief
                               ALO Enforcement Section, Region VI  (6T-EA)
                         From:  Gary McCutchen,  Chief
                               New Source Review Section,  SIB,  CPDD (MD-15)

                               Mikael  Trutna,  Chief
                               Air Toxics Program Section, SIB, CPDD (MD-15_
                      Subject:  Best Available Control  Technology (BACT)  Issues-
                               Ogden Martin Tulsa Municipal  Waste Incinerator


                           CR:  11.9 (hardcopy)
                   Discussion:  This memo discusses the circumstances that could lead
                               to a re-opening of a past BACT determination and how
                               it should be handled.

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               Additional  New Source Review Notepook  Entry
  Discussion Number:  8.23 (hardcopy)
Regulatory Citation:  (new) 40 CFR 52.21(j)
                     (old)
               Date:  December 1, 1987
                 To:  Regional Administrators
                     Regions I-X
               From:  0. Craig Potter
                     Assistant Administrator
                       for Air and Radiation
            Subject:  Improving New Source Review (NSR)  Implementation



                 CR:  10.30
         Discussion: The memo establishes certain program initiatives
                     (e.g., real-time permit overview, "top-down"  best
                     available control technology, general  and specific
                     program guidance and training) designed to improve
                     the timeliness, certainty, and effectiveness  of the
                     NSR programs.

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9.  PSD:  CLASS I AREAS
9.1
9.2
9.3
9.4
DATE:
SUBJECT:

FROM:

TO:
DISCUSSION:

CR:

DATE:
SUBJECT:

FROM:

TO:
DISCUSSION:
CR:

DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:
PREPARED BY:

DISCUSSION:
       CR:
March 19, 1979
Notification to Federal Land Manager
Under Section 165(d) of the Clean Air Act
David G. Hawkins, Assistant Administrator
Office of Air, Noise, and Radiation
All Regional Administrators
Notification to Federal Land Manager under Section 165(d)
of the Clean Air Act
None

July 6,  1979
Notification to Federal Land Managers Under
Section 165(d) of the Clean Air Act
David G. Hawkins, Assistant Administrator
Office of Air, Noise, and Radiation
All Regional Administrators
Memorandum presents lists of Federal officials respon-
sible for each of the mandatory Class I areas under
the jurisdiction of the U.S. Forest Service and the
U.S.  Fish and Wildlife Service.
None

February 26, 1981
EPA, FWS, NPS Coordination Procedures for Determining
Air Quality Impact in Region IV Class I Areas
Thomas U. Devine, Director
Air and Hazardous Management Division, Region IV
Air Programs Branch, Region IV;
Air Facilities Branch, Region IV
EPA has established procedures to assist the Fish and
Wildlife Service-(FWS) and the National Pane Service
(NPS) in carrying out their assumed responsibilities
under Section 165(d) for determining the air quality
impact in Cl-ass I areas.
None

April 1981
PSD Guidance Document
Air Quality Division
National Park Service
This document provides guidance to persons intending
to submit a PSD permit application for a major source
that has the potential to impact a Class I area
managed by the National Park Service (NPS).  This is
an NPS document and does not necessarily reflect EPA
policy.
None

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9.5    DATE:         April  8,  1981
       SUBJECT:      Response  to National  Park Service Concerns about
                    Limited Time for Review of PSD Permit Applications
       FROM:         Edward F. Tuerck, Acting Assistant Administrator
                    Office of Air,  Noise, and Radiation
       TO:           Russell E. Dickinson, Director
                    National  Park  Service
       DISCUSSION:  EPA presents guidelines for transmittal  of PSD permit
                    applications in response to National  Park Service
                    (NPS)  concerns  about  limited time afforded for review
                    of applications that  might significantly affect a
                    Class  I area.
       CR:           None

9.6    DATE:         August 23, 1982
       SUBJECT:      Department of  Interior Procedures for Determinations
                    of Adverse Impact on  Certain Federal  Lands under
                    the PSD Program
       FROM:         Sara Schneeberg, Attorney
                    Air, Noise and  Radiation Division, OGC
       TO.           Robert Bauman  and Michael Trutna
                    Control Programs Development Division
       THRU:         Peter Uyckoff,  Acting Associate General  Counsel
                    Air, Noise and  Radiation Division, OGC
       DISCUSSION:  The Department  of Interior procedures for determina-
                    tions of  adverse impact on certain Federal lands
                    under the PSD  program are presented within this
                    memorandum.
       CR:           None

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10.   PSD:   PERMITS/PERMIT  PROCESSING/PUBLIC  NOTICE
10.1
10.2
10.3
10.4
[REPLACED]
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:

[REPLACED]
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
CR:

[REPLACED]
DATE:
SUBJECT:
FROM:
       TO:

       DISCUSSION:
       CR:
                    June  22,  1978
                    IPALCO's  Proposed  Patriot,  Indiana, Generating Station
                    Edward  E.  Reich, Director
                    Division  of  Stationary Source Enforcement
                    Dale  S. Bryson, Acting Director
                    Enforcement  Division, Region V
                    See PSD/54
                    8.3 [Hard Copy]
September 13,  1978
Conditional PSD Permits
Edward E. Reich,  Director
Division of Stationary Source Enforcement
Darryl Tyler,  Chief
Control Programs Development Division
The purpose of this memorandum is to provide  guidance
on whether and under what conditions,  conditional
permits can be issued.  Specifically,  the  amount and
detail of control equipment information  required for
submittal before issuance of a PSD permit.
8.4 [Hard Copy]

November 9, 1977
Contingency Plan for FGD Systems During  Downtime as a
Function of PSD
Edward E. Reich,  Director
Division of Stationary Source Enforcement
G.T. Helms, P.E., Deputy Director
Air and Hazardous Materials Division
See PSD/37
8.2 [Hard Copy]
May 25, 1979
Submission of State Air Permits as SIP Revisions
Richard G. Rhoads, Director
Control Programs Development Division;
Edward E. Reich, Director
Division of Stationary Source Enforcement
All Regional Directors
Air & Hazardous Materials Division
The need for States to submit construction and
operating air permits as revisions to State Implemen-
tation Plans (SIP) is discussed.  Of particular
concern is the Federal enforceability of State-issued
air permits that have not been incorporated individually
within a SIP by means of an EPA approval through
rulemaking.
2.1 [Hard Copy]

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10.5   [MOVED TO 8.4; 10.2]

10.5   [DELETED]

10.7   [DELETED]

10.8   DATE:        January 19, 1979
       SUBJECT:      Public Notices
       FROM:        Thomas W. Devine, Director
                    Air & Hazardous Materials Division,  Region  IV
       TO:          All Branch Chiefs
                    Region IV
       DISCUSSION:   A listing of minority editors  and  publishers  is
                    presented in order that public notices  can  be
                    placed in the minority press wherever an  impacted
                    area is served.
       CR:          None

10.9   DATE:        April 12, 1979
       SUBJECT:      PSD and NSPS Applicability - PEPCO Dickerson
                    Generating Station Unit #4
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source  Enforcement
       TO:          Steve Uassersug, Director
                    Air and Hazardous Materials Division, Region  III
       DISCUSSION:   See PSD/88
       CR:          None

10.10  [DELETED]

10.11  [MOVED TO 2.1]

10.12  [DELETED]

10.13  DATE:        August 20. 1979
       SUBJECT:      Permitting Multi-Phase Construction  Under Prevention
                    of Significant Deterioration Regulations
       FROM:        Edwap? E- Reich, Director
                    Division of Stationary Source  Enforcement
       TO:          Diana Dutton, Director
                    Enforcement Division, Region VI
       DISCUSSION:   See PSD/93
       CR:          None

10.14  DATE:        November 14, 1979
       SUBJECT:      PSD Performance Testing for 1C Engines
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source  Enforcement
       TO:          Diana Dutton, Director
                    Enforcement Division, Region VI
       DISCUSSION:   See PSD/95
       CR:          None

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L0.15  DATE:        March 11, 1980
       SUBJECT:     Applicability of Major Source to PSD Review
                    if Construction Commenced after March 19, 1979
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          Charles H. Tisdale, Jr.
                    King and Spalding Co.
       DISCUSSION:  See PSD/101
       CR:          None

10.16  DATE:        March 11, 1980
       SUBJECT:     Phased Permits for PSD
       FROM:        James B. Wei gold, Chief
                    Control  Programs Development Division
       TO:          File
       DISCUSSION:  See PSD/102
       CR:          None

10.17  DATE:        March 25, 1980
       SUBJECT:     PSD Applicability
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          Stephen A. Dvorkin, Chief
                    General  Enforcement Branch, Region II
       DISCUSSION:  See PSD/103
       CR:          2.10 [Hard Copy]

10.18  [MOVED TO 6.2]

10.19  DATE:        June 18, 1980
       SUBJECT:     PSD Applicability:  Coal  Blending
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          Allyn Davis, Director
                    Air & Hazardous Materials Division, Region VI
       DISCUSSION:  See PSD/.112
       CR:          None

10.20  [MOVED TO 1.8]

10.21  DATE:        March 4, 1981
       SUBJECT:     PSD Applicability to ionattainment Pollutants
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          Julio Morales-Sanchez, Director
                    Enforcement Division, Region II
       DISCUSSION:  See PSD/123
       CR:          12.8

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10.22
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
      CR:
March 31, 1981
Summary of PSD Policy Determinations
Thomas W. Devine
Air and Hazardous Materials Division, Region IV
All State/Local Directors
Region IV
Summary of PSD policy determinations during the
period from November 13, 1980 to January 12, 1981:
   1)  Treatment of fugitive emissions with regard
       to PSD applicability.
   2)  A proposed physical  change must, by itself,
       result in a net increase greater than de
       minimus in order to be subject to PSD (see
       PSD/120).
   3)  Allowable emissions can be presumed to repre-
       sent actual emissions for new sources and,
       therefore, an increase in production at the
       PSD source is not an increase in actual emis-
       sions.  (Also see PSD/120).
   4)  Example 3 above occurs at an existing source
       which did not have a new source construction
       permit under the SIP (see PSD/120).
   5)  An iron foundry is considered to be one of
       the 28 PSD categories (i.e., a secondary
       metal production plant) if it uses scrap
       metal to produce iron, even if the metal is
       poured into molds.
   6)  Applicability of offset requirements from new
       sources with a SIP construction permit whose
       permit conditions did not prohibit subsequent
       increases.
   7)  A whiskey distillery is not considered to be
       one of the 28 PSD categories, specifically a
       chemical process plant.  A chemical process
       plant is any establishment in Major Group 28
       of the SIC Code.  Beverage distilleries are  in
       Major Group 20.
   8)  A proposed increase in emissions is not sub-
       ject to PSD unless the triggering increase is
       of the same pollutant as the one for which a
       significant increase results.  (Also see
       PSD/12U).
   9)  The 50 ton per year exemption under 40 CFR
       52.21(i)(7) is pollutant specific.
  10)  Operating permits are not Federally enforce-
       able; however, the State can impart Federally
       enforceable conditions to a construction
       permit issued for the source in accordance
       with*the New Source Review procedures of the
       SIP at the time of issuance.
3.16 [Hard Copy]; 2.15; 4.16; 5.9; 12.9; 13.5

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10.23  DATE:         July 31.  1981
       SUBJECT:      Summary of PSD Policy Determinations
       FROM:         Thomas W.  Devine
                    Air and Hazardous Materials  Division,  Region  IV
       TO:           All  State/Local  Directors
                    Region IV
       DISCUSSION:  Summary of PSD policy determinations during the  period
                    from February 5, 1981 to July 15,  1981:
                       1)  Is  a source reactivation subject  to PSD  (see
                           PSD/117).
                       2)  The complete list of  organic compounds not
                           considered photochemically  reactive and,  there-
                           fore,  not a VOC for purposes of PSD is detailed.
                       3)  Construction of a major source  in a nonattain-
                           ment area projected to be attainment (based on
                           the approved Part D SIP) before startup,  is
                           not subject to PSD or Part  D requirements.
                       4)  Determination of modeling baseline air quality
                           levels for 3-hour and 24-hour averages is dis-
                           cussed.
                       5)  If  an  ambient monitor has been  shut down, data
                          •obtained  may still  be deemed pertinent and use-
                           ful under certain conditions.
                       6)  A minor source which  locates within a PSD area
                           and impacts a nearby  PSD area may trigger base-
                           line and  consume increment  within each of the
                           areas  under certain conditions.
                      . 7)  A minor source which  adds a major emission
                           point  could not escape PSD  by considering
                           previous  decreases which cause  the net increase
                           to  be  less than the major source  threshold.
                       8)  An  existing source may change its designation
                           from major to minor by accepting  a Federally
                           enforceable limitation.
                       9)  The 50 tons per year  exemption  under 40  CFR
                           52.21(i)(7) cannot be claimed for an emission
                           increase  of any pollutant unless  the increase
                           of  each pollutant is  less than  50 tons per
                           year.
                      10)  The air quality de minimus  level  for N02  is
                           14   g/m^  annual  average, as stated in the
                           puolished version of  the regulation.
       CR:           2.18 [Hard Copy]; 3.19; 4.19; 5.10; 6.11; 7.5

10.24  DATE:         August 3,  1981
       SUBJECT:      Appeal Procedures for PSD Permits  Under  the
                    Consolidated  Permit Regulations
       FROM:         Edward E.  Reich, Director
                    Division of Stationary Source Enforcement
       TO:           William K. Sawyer
                    General  Enforcement Branch,  Region II
       DISCUSSION:  See PSD/132
       CR:           11.3

-------
10.25  DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:

10.26  DATE:
       SUBJECT:

       FROM:

       TO:
       DISCUSSION:
       CR:

10.27  DATE:
       SUBJECT:

       FROM:
       TO:

       DISCUSSION:
       CR:

10.28  DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:


       CR:
May 5, 1982
A.I. DuPont Institute PSD Permit
Edward E. Reich, Director
Division of Stationary Source Enforcement
W. Ray Cunningham, Chief
Air Programs & Energy Branch, Region III
See PSD/135
11.5 [Hard Copy]; 6.13

August 11, 1983
Requirement to Publish All Significant Final  Actions
under Title I of the Clean Air Act
James T. Mil burn, Chief
Air Management Branch, Region IV
Section Chiefs, Unit Chiefs, Team Leaders,  Bruce Miller,
and Roger Pfaff
Air Management Branch, Region IV
Presented within the memorandum are requirements
considered in publishing all significant final
actions under Title I of the Clean Air Act.
None

December 14, 1983
Guidance on Enforcement of Prevention of Significant
Deterioration Requirements Under the Clean  Air Act
Michael S. Alushin, Assoc. Enf. Counsel  for Air and
Edward E. Reich, Director
SSCD
Regional  Counsels and Directors
Air Management Divisions, Region I - X
Memo provides guidance for enforcement of Part C or
Title I of the CAA, specifically explaining the use
of Section 167 and its alternatives for enforcement
against PSD violations.  Violations discussions
include construction or operation of a PSD  source
without a permit, construction or operation with an
invalid permit, and construction or operation in a
manner not consistent with a validly-issued permit.
11.8; 14.7; 15.

April 26, 1986
Federal Enforceability of Combined "Construction and
Operation" Permits
William D. Anderson, Asst. Regional Counsel
U.S. EPA, Region IV
N.D. Gerald, Asst. Chief
Air Quality Section, DEM, DNRCD, North Carolina
A combined construction and operation permit, issued
pursuant to existing NC SIP regulations, would be
Federally enforceable.
None

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10.29  DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:



       CR:
November 24, 1986
Need for a Short-term Best Available Control  Technology
(BACT) Analysis for the Proposed William A.  Zimmer
Power Plant
Gerald A. Emison, Director
OAQPS
David Kee, Director
Air Management Division Region V
PSD permits must contain short-term emission  limits  to
ensure protection of the applicable NAAQS and PSD
increments.  Such short-term limits could be  more
stringent than the BACT limit.
None

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               Additional  New Source Review Notebook  Entry
  Discussion Number:  10.30
Regulatory Citation:  (new) 40 CFR 52.21(j)
                     (old)
               Date:  December 1..1987
                 To:  Regional  Administrators
                     Regions I-X
               From:  J.  Craig Potter
                     Assistant Administrator
                       for Air and Radiation
            Subject:  Improving New Source Review  (NSR)  Implementation


                 CR:  8.23 (hardcopy)
         Discussion:  The memo establishes  certain  program initiatives
                     (e.g.,  real-time  permit  overview,  "top-down"  best
                     available control  technology,  general  and specific
                     program guidance  and  training)  designed  to improve
                     the timeliness, certainty,  and  effectiveness  of the
                     NSR programs.

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11.   PSD:   PERMIT CHANGES/EXTENSIONS/EXPIRATIONS

11.1   DATE:         July 21,  1978
       SUBJECT:      PSD  Permit for Marble head Lime Company
       FROM:         Edward E.  Reich,  Director
                    Division  of Stationary Source Enforcement
       TO:           Robert L.  Duprey,  Director
                    Air  and Hazardous Materials Division, Region V
       DISCUSSION:   See  PSD/60
       CR:           4.5  [Hard Copy]

11.2   DATE:         November  26,  1980
       SUBJECT:      Request for Extension on PSD Permit for Indianapolis
                    Power and Light  Company
       FROM:         Walter C.  Barber, Director
                    Office of Air Quality Planning and Standards
       TO:           Sandra S.  Gardebring, Director
                    Enforcement Division, Region V
       DISCUSSION:   See  PSD/119
       CR:           None

11.3   DATE:         August 3,  1981
       SUBJECT:      Appeal Procedures for PSD Permits Under the Consolidated
                    Permit Regulations
       FROM:         Edward E.  Reich,  Director
                    Division  of Stationary Source Enforcement
       TO:           William K. Sawyer
                    General Enforcement Branch, Region II
       DISCUSSION:   See  PSD/132
       CR:           10.24 [Hard Copy]

11.4   [REPLACED]
       DATE:         July 11,  1983
       SUBJECT:      Request by the Hawaiian Electric Co. to Burn
                    2.OS Sulfur Fuel  Oil at Their Kahe Units #1-5
       FROM:         Sheldon Meyers,  Director
                    Office of Air Quality Planning and Standards
       TO:           David P.  Howekamp, Director
                    Air  Management Division, Region IX
       DISCUSSION:   See  PSD/146
       CR:           4.26 [Hard Copy]

11.5   DATE:         May  5, 1982
       SUBJECT:      A.I. DuPont Institute PSD Permit
       FROM:         Edward E.  Reich,  Director
                    Division  of Stationary Source Enforcement
       TO:           W. Ray Cunningham, Chief
                    Air  Programs & Energy Branch, Region III
       DISCUSSION:   See  PSD/135
       CR:           6.13; 10.25

11.6   [MOVED TO 4.3]

11.7   [MOVED TO 4.6]

-------
11.8
DATE:
SUBJECT:

FROM:
       TO:

       DISCUSSION:
       CR:
December 14,  1983
Guidance on Enforcement of Prevention  of  Significant
Deterioration Requirements Under  the Clean Air  Act
Michael S. Alushin,  Assoc. Enf. Counsel for  Air and
Edward E. Reich,  Director
SSCD
Regional Counsels and Directors
Air Management Divisions, Regions I -  X
Memo provides guidance for enforcement of Part  C or
Title I of the CAA,  specifically  explaining  the use
of Section 167 and its alternatives for enforcement
against PSD violations.  Violations discussions
include construction or operation of a PSD  source
without a permit, construction or operation  with an
invalid permit, and  construction  or operation in a
manner not consistent with a validly-issued  permit.
10.27 [Hard Copy]; 1.47; new

-------
                         Additional  New Source Review Notebook Entry
            Discussion Number:  11.9
Regulatory Citation (current):  40 CFR 52.21(j)
                        (old)
                         Date:  November 19,  1987
                           To:  J.  David Sullivan,  Chief
                               ALO Enforcement Section, Region VI  (6T-EA)
                         From:  Gary  McCutchen,  Chief
                               New Source  Review Section,  SIB,  CPDD  (MD-15)

                               Mikael  Trutna, Chief
                               Air Toxics  Program Section,  SIB, CPDD (MD-15_


                      Subject:  Best  Available Control  Technology (BACT)  Issues-
                               Ogden Martin  Tulsa Municipal  Waste Incinerator
                           CR:  8.22
                   Discussion:  This memo  discusses  the  circumstances  that  could lead
                               to  a re-opening  of a past  BACT determination  and how
                               it  should  be  handled.

-------
12.  PSD:  RELATION TO NONATTAINMENT PROGRAM
12.1   DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:
       CR:

12.2   [DELETED]

12.3   DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:


       CR:

12.4   [DELETED]
12.5
12.6
       DATE:
       SUBJECT:
       FROM:

       TO:
       DISCUSSION:
       CR:

       DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:
                    July 28, 1978
                    When Is a Source Subject to Review for
                    Both Offsets and PSD?
                    Edward E. Reich, Director
                    Division of Stationary Source Enforcement
                    Gene W. Lewis, Vice President - Operations
                    Alabama By-Products Corp.
                    See PSD/61
                    None
                    May 4, 1979
                    Need for Emission Offsets in Rural Ozone
                    Nonattainment Areas
                    Richard G. Rhoads, Director
                    Control Programs Development Division
                    Thomas Devine, Director
                    Air and Hazardous Materials Division, Region IV
                    The intent of this memorandum is to reiterate EPA
                    policy concerning the need for emission offsets in
                    rural areas for ozone.
                    None
June 8, 1979
Impact of Clean Air Act Nonattainment Sanctions
David G. Hawkins, Assistant Administrator
Office of Air, Noise, and Radiation
All Regional Administrators
This memorandum describes Agency policy and procedures
regarding the July 1, 1979 nonattainment sanctions.
Three main topics are addressed:  Construction Prohi-
bitions (permit processing, sources affected and
geographic applicability); SIP Approvals (area
specific approval, conditioner approval, and area
redesignation); and Federal Funding Sanctions (discre-
tionary aspects).
None

October 23, 1979
B.F. Goodrich - PSD Modification
Edward E. Reich, Director
Division of Stationary Source Enforcement
Stephen A. Dvorkin, Chief
General Enforcement Branch, Region II
See PSD/94
None
12.7   [MOVED TO 25.4]

-------
12.8   DATE:         March  4,  1981
       SUBJECT:      PSD  Applicability  to  Nonattainment Pollutants
       FROM:         Edward E. Reich, Director
                    Division  of  Stationary  Source Enforcement
       TO:           Julio  Morales-Sanchez,  Director
                    Enforcement  Division, Region II
       DISCUSSION:   See  PSD/123
       CR:           10.21  [Hard  Copy]

12.9   DATE:         March  31, 1981
       SUBJECT:      Summary of PSD  Policy Determinations
       FROM:         Thomas W. Devine
                    Air  and Hazardous  Materials Division, Region IV
       TO:           All  State/Local Directors
                    Region IV
       DISCUSSION:   Summary of PSD  policy determinations during the period
                    from November 1-3,  1980  to January 12, 1981:
                      1)   Treatment of fugitive emissions with regard to
                           PSD applicability.
                      2)   A  proposed  physical change must, by itself,
                           result in a net  increase greater than de mini-
                           mus in order to  be subject to PSD (see PSD/120).
                      3)   Allowable emissions can be presumed to repre-
                           sent  actual emissions for new sources and,
                           therefore,  an  increase in production at the
                           PSD source  is  not an increase in actual emis-
                           sions.   (Also  see PSD/120).
                      4)   Example  3 above  occurs at an existing source
                           which did not  have a new source construction
                           permit under the SIP (see PSD/120).
                      5)   An iron  foundry  is considered to be one of the
                           28 PSD categories (i.e., a secondary metal
                           production  plant) if it uses scrap metal to
                           produce  iron,  even if the metal is poured into
                           molds.
                      6)   Applicability  of offset requirements from new
                           source with a  SIP construction permit *hose
                           permit conditions did not prohibit suosequent
                           increases.
                      7)   A whiskey distillery is not considered to be
                           one of the  28  PSD categories, specifically a
                           chemical process plant.  A chemical process
                           plant is any establishment in Major Group 28
                           of the SIC  Code.  Beverage distilleries are in
                           Major Group 20.
                      8)   A  proposed  increase in emissions is not subject
                           to PSD unless  the triggering increase is of the
                           same  pollutant as the one for which a signifi-
                           cant  increase  results.  (Also see PSD/120).
                      9)   The 50 ton  per year exemption under 40 CFR
                           52.21(i)(7) is pollutant specific.
                      10)   Operating permits are not Federally enforce-
                           able; however, the State can impart Federally
                           enforceable conditions to a construction
                           oermit issued  for the source in accordance

-------
       CR:
                    with the New Source Review procedures of the
                    SIP at the time of issuance.
             3.16 [Hard Copy]; 2.15; 4.16;  5.9;  10.22; 13.5
12.10  DATE:
       SUBJECT:
             May 6, 1983
             Applicability Determination for Delco Products
             in Dayton, Ohio
FROM:        Edward E. Reich,  Director
             Stationary Source Compliance Division
TO:          David Kee, Director
             Air Management Division,  Region Y
DISCUSSION:  See PSD/143
CR:          4.6
12.11
DATE:
SUBJECT:

FROM:

TO:
       DISCUSSION:
       CR:
October 17, 1986
Application of NSR Rules to the Conversion to Coal  at
the Hibbard Station Units 3 and 4
Steve Rothblatt, Chief
Air and Radiation Branch
Louis M. Chamberlain
Division of Air Quality, Minnesota Pollution Control
Agency
Discusses the circumstances under which a conversion
to coal of two units at the Hibbard Station would
cause the plant to be subject to NSD regulations for
sulfur dioxide.  Also, discusses the term "capable  of
accommodating" and the implications of the construc-
tion ban in this case.
3.24; 4.34 [Hard Copy]

-------
13.  PSD:   TEMPORARY SOURCE/PORTABLE SOURCE/OTHER  EXEMPTIONS
13.1   DATE:         December 11, 1978
       SUBJECT:     PSD Applicability - Temporary Emissions
       FROM:         Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          Anita B. Turpin, Chief
                    Technical Support Section,  Region VI
       DISCUSSION:  See PSD/80
       CR:          None

13.2   [MOVED TO 3.4]

13.3   DATE:         April 11, 1980
       SUBJECT:     Exemptions from PSD Permit  Requirements for Coel
                    Conversions Resulting from  DOE Prohibition Orders
       FROM:         Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          Howard R. Heim, Chief
                    Air Programs Branch, Region III
       DISCUSSION:  See PSD 104
       CR:          4.-12 [Hard Copy]; 6.9

13.4   DATE:         February 9, 1981
       SUBJECT:     Petitions for Review of PSD Regulations
       FROM:         Michael  Trutna, Chief
                    New Source Review Section
       TO:          All Regional New Source Review Contacts
       DISCUSSION:  Petitions for review of PSD regulations.
                    - Utility Air Regulatory Group Petition
                       1)  Consideration is given to the increase in
                           actual emissions resulting from a  fuel
                           switch and the resulting impact on increment
                           consumption.
                           The term "demolition" as applied to reduction
                           in capacity utilization and the corresponding
                           effect on increment  consumption.
                           The definition of major modification
                           excludes any voluntary fuel switch at a
                           source deemed "capable of accommodating"
                           and compliance with  certain other  conditions.
                           Definition of term "significant" as
                           applied to de minimus emission levels
                           both for pollutants  listed and those not  listed.
                           A "minor" addition to a "minor" source would
                           contribute to the baseline concentration  if it
                           occurred before the  applicable baseline date;
                           however, it would not trigger PSD  review.
                           Section 52.21(i)(7)  exempts any major modifica-
                           tion, which meets certain conditions, from  the
                           air quality assessments relating to Class  II
                           areas.  A source may claim more than one  such
                           exemption.
                       2)
                       3)
                       4)
                       5)
                       6)

-------
                    - America Petroleum Institute' (API)  Petition.
                      See (2) and  (4j  above.

                    - American Mining  Congress  (AMC)  Petition
                       1)  The treatment of fugitive  emissions,  with
                           regard  to a source's  designation  as
                           "major" for PSD purposes,  is  further  clarified.
       CR:           4.14 [Hard Copy];  5.12; 6.10

13.5   DATE:         March 31, 1981
       SUBJECT:      Summary of PSD Policy Determinations
       FROM:         Thomas VI. Devine
                    Air and Hazardous  Materials  Division,  Region IV
       TO:           All  State/Local  Directors
                    Region IV
       DISCUSSION:   Summary of PSD policy determinations during  the period
                    from November  13,  1980 to January 12,  1981:
                       1)  Treatment of fugitive emissions with  regard to
                           PSD applicability.
                       2)  A proposed  physical change must,  by itself,
                           result  in a net increase greater  than de minimus
                           in order to be subject to  PSD  (see PSD/120).
                       3)  Allowable emissions can be presumed to  represent
                           actual  emissions for  new sources  and, therefore,
                           an increase in production  at  the  PSD  source is
                           not an  increase in actual  emissions.  (Also see
                           PSD/120).
                       4)  Example 3 above occurs at  an  existing source
                           which did not have a  new source construction
                           permit  under the SIP  (see  PSD/120).
                       5)  An iron foundry is considered  to  be one of the
                           28 PSD  categories  (i.e., a secondary  metal
                           production  plant)  if  it uses  scrap metal to
                           produce iron, even if the  metal is poured into
                           molds.
                       6)  Applicability of offset requirements  from new
                           source  with a SIP  construction  permit whose
                           permit  conditions  did not  prohibit subsequent
                           increases.
                       7)  A whiskey distillery  is not considered  to be
                           one of  the  28 PSD  categories,  specifically a
                           chemical  process plant.  A chemical process
                           plant is  any establishment in Major Group 28
                           of the  SIC  Code.  Beverage distilleries are  in
                           Major Group 20.
                       8)  A proposed  increase in emissions  is not subject
                           to PSD  unless the  triggering  increase is of the
                           same pollutant as  the one  for which a signifi-
                           cant increase results. (Also  see PSD/120).
                       9)  The 50  ton  per year exemption  under 40  CFR
                           52.21(i)(7) is pollutant specific.
                      10)  Operating permits  are not  Federally enforce-
                           able; however, the State can  impart Federally
                           enforceaole conditions to  a construction

-------
                           permit  issued  for tne  source  in  accordance
                           with  the  New Source  Review  procedures  of  the
                           SIP at  the  time  of  issuance.
       CR:           3.16 [Hard Copy];  2.15;  4.16;  5.9; 10.22; 12.9

13.6   DATE:         April  1,  1981
       SUBJECT:      PSD  Questions
       FROM:         Edward E. Reich, Director
                    Division  of  Stationary  Source  Enforcement
       TO:           Merrill S. Hohman,  Director
                    Air  4  Hazardous  Materials Division,  Region  I
       DISCUSSION:   See  PSD/124
       CR:           4.7  [Hard Copy]; 2.16

13.7   DATE:         January 19,  1981
       SUBJECT:      Clarification  of PSD Regulations as  Amended in 40 CFR
                    52.21  (1980)
       FROM:         Douglas M. Costle

       TO:           Andrea S. Bear,  Esquire
                    Hunton & Williams,  Washington, D.C.
       DISCUSSION:   1)   An increase  in  actual emissions  would contribute
                        exclusively  to  the  baseline concentration if the
                        increase occurs:  (a) as a result of a fuel  switch
                        that  is  not  a major  modification, (b) between
                        8/7/77 and the  applicable  baseline  date, and (c)
                      •  at any major stationary source whose construction
                        commenced  on or before  January 6, 1975.
                    2)   Discussion of whether decreases  in  actual emis-
                        sions that occur as  a result of  "eductions in
                        capacity utilization not resulting  from demoli-
                        tion and that occur  between January 6, 1975, and
                        the applicable  baseline date would  affect incre-
                        ment consumption.   Includes discussion of the
                        conditions under which  short-of-demolition
                        reduction  in capacity utilization amounts to
                        construction.
                    3)   Guidance on  the meaning of "capable of accommo-
                        dating" will be provided by EPA  upon receiving
                        specific fact patterns  supplied  by  the questioner.
                    4)   EPA states its  intent to delete  the requirement
                        that, for pollutants not having  specific "de
                        mini mis" levels set, any emissions  rate at all is
                        significant  upon promulgation of technical and
                        conforming amendments.
                    5)   The regulations do provide that  a "minor" addi-
                        tion to a "minor" source would escape PSD review,
                        and, if  it occurred  before the applicable baseline
                        date, would contribute  to the baseline concentra-
                        tion.
                    6)   Sources may  qualify  for more than one exemption
                        under Section 52.21(0(7) of 45  FR  52739 for any
                        major modification that meets certain conditions

-------
                        from the air quality assessments relating  to
                        Class II areas.
       CR:          4.30 [Hard Copy]; 5.21

13.8   DATE:         November 3, 1986
       SUBJECT:      Exemption of Administration of Federal  Air  Pollution
                    Control  Laws on Indian-governed Lands
       FROM:         William  B. Hathaway,  Director
                    Air, Pesticides, and  Toxics Division
       TO:          Mr.  Craig J. Reece, Law Department
                    Arizona  Public Service Company, Phoenix, AZ
       DISCUSSION:   This memo discusses the Federal Indian  Policy  and  its
                    ramifications for Federal  air pollution control law
                    in general, and specifically, for NSPS  and  NESHAP
                    implementation
       CR:          None

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14.  PSD:   ALLOWABLE CONSTRUCTION ACTIVITIES  PRIOR  TO PERMIT  ISSUANCE

14.1   [MOVED TO 1.5]

14.2   [MOVED TO 1.6]

14.3   DATE:         October 10,  1978
       SUBJECT:      Source  Construction Prior to  Issuance of  PSD Permit
       FROM:         Edward  E.  Reich,  Director
                    Division of  Stationary  Source Enforcement
       TO:          Thomas  U.  Devine,  Chief
                    Air Branch,  Region I
       DISCUSSION:   See PSD/73
       CR:          None

14.4   DATE:         December 18,  1978
       SUBJECT:      Interpretation of  "Constructed" as it Applies
                    to Activities Undertaken  Prior  to Issuance of
                    a PSD Permit
       FROM:         Edward  E.  Reich,  Director
                    Division of  Stationary  Source Enforcement
       TO:          All Enforcement Division  Directors;
                    All Air and  Hazardous Materials Division  Directors
       DISCUSSION:   See PSD/82
       CR:          None

14.5   DATE:         May 5,  1980
       SUBJECT:      Boilout under PSD
       FROM:         Edward  E.  Reich,  Director
                    Division of  Stationary  Source Enforcement
       TO:          Jan Geiselman, Director
                    Air & Hazardous Materials Division, Region II
       DISCUSSION:   See PSD/108
       CR:          None

14.6   DATE:         April 29,  1981
       SUBJECT:      PSD Applicability  of Demolition Activities
       FROM:         Valdas  V.  Adamkus, Acting Administrator
                    Region  V
       TO:          Joseph  M.  Poll to,  Esquire
                    Honigman,  Miller,  Schwartz and Cohen
       DISCUSSION:   See PSD/125
       CR:          None

14.7   DATE:         December 14,  1983
       SUBJECT:      Guidance on  Enforcement of Prevention of  Significant
                    Deterioration Requirements Under the Clean Air Act
       FROM:         Michael  S. Alushin, Assoc.  Enf. Counsel for Air and
                    Edward  E.  Reich,  Director
                    SSCD
       TO:          Regional Counsels  and Directors
                    Air Management Divisions, Regions I - X
       DISCUSSION:   Memo provides guidance  for enforcement of Part C or
                    Title I of the CAA, specifically explaining the use
                    of Section 167 and its  alternatives for enforcement

-------
14.8
CR:

DATE:
SUBJECT:

FROM:
       TO:

       DISCUSSION:
       CR:
against PSD violations.  Violations discussions
included construction or operation of a PSD source
without a permit, construction or operation with an
invalid permit, and construction or operation in a
manner not consistent with a validly-issued permit.
10.27 [Hard Copy]; 11.8; New

March 28, 1986
Construction Activities Prior to Issuance of a PSD
Permit with Respect to "Begin Actual  Construction"
Director
Stationary Source Compliance Division
OAQPS
Robert R. DeSpain, Chief
Air Programs Branch, Region VIII
The term "emissions unit" as defined  at Section
52.21UH7) is clarified.  Before issuance of the PSD
permit, construction is prohibited on any emissions
unit or on any installation designed  to accommodate
the emissions unit.  Activities discussed in the
December 18, 1978, memo as allowed prior to issuance
of a PSD permit are undertaken at the risk of the
owner or operator.  Reaffirms December 1978 policy
on preconstruction activities as still current.
None

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15.  PSD:  SIP PROCESSING
15.1   DATE:
       SUBJECT:
       FROM:

       TO:
       DISCUSSION:
15.2
15.3
CR:

DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:



CR:
September 11, 1986
Ozone Control Strategy - Regional  Office Review of
Potential Improvements in New Source Review (NSR)
Regulations
G.T. Helms, Chief
Control Programs Operations Branch
Numerous addresses (see memo)
Memo lists NSR "loopholes" that occur in some State
regulations and that are inconsistent with Federal
requirements as adopted in 1980.   Closing the loopholes
provides a potential  control measure under the ozone
control strategy to minimize emissions increases that
otherwise might result from new source growth.
27.3 [Hard Copy]

January 29, 1987
Implementation of the Revised Modeling Guideline for
Prevention of Significant Deterioration (PSD)
Darryl D. Tyler, Director
Control Programs Development Division
Directors, Air Divisions
Regions I - X
The memo describes the specific mechanism by which
the revised PSD air quality modeling guidelines should
be implemented for each type of program approved to
review PSO permits (EPA, State, or local agency
programs, depending on whether and to whom EPA has
transferred the PSD program).
6.20 [Hard Copy]

February 4, 1987
Region IX New Source Review/Prevention of Significant
Deterioration (NSR/PSD) Rulemaking Backlog
Gerald A. Emison, Director
OAQPS
David P. Howekamp, Director
Air Management Division, Region IX
The memo responds to Region IX1s concern about their
NSR/PSD rulemaking backlog and the need to make local
NSR/PSD regulations Federally enforceable to enhance
enforcement options.
None

-------
                         Additional  New Source  Review  Notebook  Entry
            Discussion Number:  15.4 (hardcopy)
Regulatory Citation (current):
                        (old)
                         Date:  November 13,  1987
                           To:  Bruce Miller
                               Chief, Air Programs Branch

                         From:  Howard J. Hoffman,  Attorney
                               Office General  Counsel

                      Subject:  Approval  of Implementation Plans
                           CR: 28.1
                   Discussion: This memo discusses the OGC opinion on EPA options
                               when approving an implementation plan submitted by
                               States on behalf of a local agency.  The options
                               include how much EPA considers the local plan a
                               separate document rather than just the delegation
                               of an already approved SIP and how much autonomy can
                               or should be given to the local agency with respect
                               to implementing the plan and enforcement.

-------
21.  NAA:  TRANSITION/GRANDFATHERING

21.1   DATE:         February  23,  1981
       SUBJECT:      Source  Applicability  Under  the  Interpretative Ruling
       FROM:         Edward  E.  Reich, Director
                    Division  of Stationary  Source Enforcement
       TO:           Carl  C. Konnert, Jr., Acting Director
                    Enforcement Division, Region IX
       DISCUSSION:   Not available:  SSR/51
       CR:           None

21.2   DATE:         June  16,  1981
       SUBJECT:      Federally Enforceable Permit Conditions  for Richmond
                    Lube  Oil  Project
       FROM:         Edward  E.  Reich, Director
                    Division  of Stationary  Source Enforcement
       TO:           R.W.  Kreutzen,  General  Manager
                    Environmental Affairs
                    Chevron,  U.S.A., Inc.
       DISCUSSION:   Not available:  SSR/52
       CR:           None

21.3   DATE:         August 26, 1981
       SUBJECT:      Qualifications  for Exemption from Providing Offsets
       FROM:         Edward  E. Reich, Director
                    Division  of Stationary  Source Enforcement
       TO:           Charles Tompkins,  P.E., Manager of Air Quality
                    Corporate Environmental Protection
                    Kimberly-Clark  Corporation
       DISCUSSION:   Not available:  SSR/53
       CR:           None

21.4   DATE:         January 5, 1978
       SUBJECT:      Determination of  Interpretative Ruling (IR)
       FROM:         Edward  E. Reich, Director
                    Division  of Stationary  Source Enforcement
       TO:           James 0.  McDonald, Director
                    Enforcement Division, Region Y
       DISCUSSION:   See SSR/34
       CR:           23.10 [Hard Copy]

-------
22.  NAA:  POTENTIAL  TO  EMIT/LIMITATIONS  ON CAPACITY TO EMIT
22.1
22.2
22.3
22.4
22.5
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:
       FROM:
TO:

DISCUSSION:
CR:

DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:

CR:
April 13, 1977
Emission Offset Policy
John B. Rasnic, Chief
Division of Stationary Source Enforcement
Warren Peters
Region I
See SSR/9
None

October 17, 1977
New Source Review Modeling Emission  Baselines
Edward E. Reich, Director
Division of Stationary Source Enforcement
David Kee, Chief
Air Enforcement Branch, Region V
See SSR/26
None

May 6, 1977
Applicability of Offset Program to FEA's SPR Program
Walter C. Barber, Director
Office of Air Quality Planning and Standards
Robert L. Davies, Deputy Asst. Administrator
Strategic Petroleum Reserve, FEA
See SSR/12
24.1

February 27, 1979
Policy Decisions with Regard to the  Applicability
of the Clean Air Act Requirements to the Strategic
Petroleum Reserve
David G. Hawkins, Assistant Administrator
Office of Air, Noise, and Radiation;
Marvin B. Durning, Assistant Administrator
Office of Enforcement;
Joan Z. Bernstein, Attorney
Office of General Council
Adlene Harrison, Regional Administrator
Region VI
See SSR/47
None

June 28, 1985
Seasonal Afterburner Policy, Applicability of
Part D New Source Review Requirements
Robert D. Bauman, Chief
Standards Implementation Branch, CPDD
William S. Baker, Chief
Air Programs Branch, Region II
Applicability discussion for sources using EPA
Seasonal Afterburner Policy
2.20; 5.20

-------
23.  NAA:  DEFINITION/CLASSIFICATION  OF  SOURCE

23.1   DATE:         April  8,  1977
       SUBJECT:      Applicability  of  Offset Policy to Relocated Source
                    Having No Emissions  Increase
       FROM:         Walter C.  Barber, Director
                    Office of Air  Quality  Planning and Standards
       TO:           H.C.  Phelan, Jr., Executive Director
                    California Asphalt Pavement Association
       DISCUSSION:   See SSR/8
       CR:           None

23.2   [REPLACED]
       DATE:         September 18,  1978
       SUBJECT:      Exemption of Municipal  Sewage Sludge Combustion from
                    Offset Ruling
       FROM:         D.  Kent Berry,  Director
                    Policy Analysis Staff,  OAQPS
       TO:           William Davis
                    LA/OMA Project (California)
       DISCUSSION:   See SSR/45
       CR:           None

23.3   [MOVED TO 22.3]

23.4   [DELETED]

23.5   [DELETED]

23.6   DATE:         September 15,  1977
       SUBJECT:      Interpretation of Offset Policy
       FROM:         Edward E.  Reich,  Director
                    Division of Stationary Source Enforcement
       TO:           Howard R.  Helm, Chief
                    Air Programs-Branch, Region  III
       DISCUSSION:   See SSR/23
       CR:           None

23.7   DATE:         September 30,  1977
       SUBJECT:      Determination  of  Emission Points  Subject to LAER
       FROM:         Edward E. Reich,  Director
                    Division of Stationary Source Enforcement
       TO:           G.T. Helms, Jr.,  P.E., Deputy Director
                    Air and Hazardous Materials  Division,  Region  IV
       DISCUSSION:   See SSR/25
       CR:           None

23.8   [DELETED]

23.9   DATE:         January 1, 1978
       SUBJECT:      Conditions for Coverage by IR  for Source Reactivation
       FROM:         Lloyd A. Reed, Director
                    Enforcement Division,  Region X

-------
       TO:
       DISCUSSION:
       CR:

23.10  DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:

23.11  [DELETED]

23.12  [DELETED]

23.13  DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:
       CR:

23.14  [DELETED]
23.15
23.16
       DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:

       DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:
       CR:
                    E.J.  Weathers bee, Administrator
                    Air Quality  Division
                    Department of  Environmental Quality
                    (Oregon)
                    See SSR/33
                    None

                    January 5, 1978
                    Determination  of  Interpretative Ruling (IR)
                    Edward E. Reich, Director
                    Division  of  Stationary  Source Enforcement
                    James 0.  McDonald, Director
                    Enforcement  Division, Region V
                    See SSR/34
                    None
                    March 26,  1978
                    Jewell Coal  and  Coke  Company - Applicability of
                    Condition  2  of the  Interpretative Ruling
                    Edward E.  Reich,  Director
                    Division of  Stationary  Source Enforcement
                    Gordon M.  Rapier, Director
                    Air and Hazardous Materials Division, Region III
                    See SSR/40
                    None
                    May 22,  1978
                    Wheeling-Pittsburgh  Steel Corporation, Monessen Coke
                    Battery  No.  1;  Evaluation of Corporation Proposed
                    Rehabilitation  and NSR  Applicability Determination
                    Richard  D. Wilson, Deputy Assistant Administrator
                    Office of Enforcement
                    Steve Wassersug. Director
                    Enforcement  Division, Region III
                    See SSR/43
                    None

                    February 27,  1979
                    Emission Offset Policy  - Determination of Replacement
                    Facility
                    Edward E. Reich, Director
                    Division of  Stationary  Source Enforcement
                    Carl V.  Blomgren, Director
                    Air and  Hazardous Materials Division, Region VII
                    See SSR/48
                    None
23.17  [DELETED]

-------
23.18  DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:

23.19  DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:

23.20  DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:
       CR:
February 24, 1981
Source Applicability Under the Interpretive Ruling
Ed Reich, Director
Division of Stationary Source Enforcement
Carl C. Konnert, Jr., Acting Director
Enforcement Division, Region IX
This memo supplies an applicability determination for
Kernridge Oil Company application for the installa-
tion of 15 steam generators.  The questions discussed
concerned the requirements to which Kernridge should
be subject due to a long delay in the permit review
process during which changes in the Offset Policy
"clean spot" exemption was eliminated.
None

March 28, 1986
Applicability of Nonattaininent New Source Review (NSR)
to Tennessee Valley Authority Shawnee Plant Demonstra-
tion Project
Darryl D. Tyler, Director
Control Programs Development Division
Bruce C. Miller, Acting Chief
Air Programs Branch, Region IV
The memo discusses appropriate action to be taken at
the Regional level on the issue of a "plant-wide"
rather than dual definition of source in a NSR program
for nona ttai nine nt areas in the time period before a
national policy statement on the issue.  See February
27, 1987, memo from Craig Potter for current EPA
policy guidance.
None

February 27, 1987
Plant-wide Definition of Major Stationary Sources of
Air Pollution
J. Craig Potter, Assistant Administrator for Air and
Radiation
Directors
Air Management Divisions, Regions I - X
Memo provides guidance on the preparation of Federal
Register notices proposing action on pending submis-
sions of SIP revisions to allow adoption and use of
the "plant-wide" definition of "source" in nonattain-
ment areas.
None

-------
                       Additional  New  Source  Review  Notebook  Entry
           Discussion Number:  23.21
Regulatory Citation:  current:  51.165  (a)(l)(ix)
                        (old)  51.18  (J)(l)(1x)
                        Date:  October  6,  1987
                          To:  David  P.  Howekamp,  Director
                              Air Management  Division,  Region IX

                        From:  Gerald A.  Emison, Director
                              OAQPS

                     Subject:  Emissions  from  Landfills


                          CR:
                  Discussion:  Memo clarifies  how landfill  emissions should be
                              considered  (i.e.,  fugitive or non-fugitive) for the
                              purpose of  determining nonattainment new source
                              review applicability.

-------
24.  NAA:  GEOGRAPHIC/POLLUTANT APPLICABILITY
24.1   DATE:        May 6, 1977
       SUBJECT:     Applicability of Offset Program to FEA's  SPR  Program
       FROM:        Walter C. Barber, Director
                    Office of Air Quality Planning and Standards
       TO:          Robert L. Davies, Deputy Asst. Administrator
                    Strategic Petroleum Reserve, FEA
       DISCUSSION:  See SSR/12
       CR:          23.3 [Hard Copy]

24.2   [MOVED TO 27.2]

24.3   [DELETED]
24.4   DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:

24.5   DATE:
       SUBJECT:
       FROM:

       TO:
       DISCUSSION:
       CR:

24.6   [DELETED]
January 25, 1978
Applicability of the Emission Off-set Policy
Edward E. Reich, Director
Division of Stationary Source Enforcement
Jack Chicca, Chief
Air Programs Branch, Region V
See SSR/36
None

June 13, 1978
Impact of Secondary Emissions in New Source  Reviews
David G. Hawkins, Assistant Administrator
Office of Air and Waste Management
All Regional Administrators
See SSR/44
None
24.7   [MOVED TO 22.4]

24.8   DATE:        May 27,  1980
       SUBJECT:      New Source Review Requirements in Areas  Unclassified
                    for Ozone
       FROM:        Richard  G. Rhoads,  Director
                    Control  Programs Development Division
       TO:           AllynM. Davis,  Director
                    Air and  Hazardous Materials Division,  Region  VI
       DISCUSSION:   Rural  areas designated as "unclassifiable" for ozone
                    are subject to the  new source review requirements
                    discussed for proposed construction of new major
                    sources  of volatile organic compounds.
       CR:           None

-------
25.   NAA:  OFFSETS

25.1    DATE:         March 17,  1977
        SUBJECT:      Response to  Action Memorandum  - Policy for New
                     Sources  In Nonattainment Areas, Hampton Roads Oil
                     Refinery
        FROM:         Edward F.  Tuerk,  Acting Assistant Administrator
                     Office of  Air and Waste Management
        TO:          Daniel J.  Snyder, III, Regional Administrator
                     Region III
        DISCUSSION:   See SSR/7
        CR:          None

25.2    DATE:         May 16,  1977
        SUBJECT:      Emissions  Offset Policy -  City of Philadelphia
        FROM:         Edward E.  Reich,  Director
                     Division of  Stationary Source  Enforcement
        TO:          Howard R.  Helm,  Chief
                     Air Programs Branch, Region  III
        DISCUSSION:   See SSR/14
        CR:          None

25.3    DATE:         July 15, 1977
        SUBJECT:      Interpretative  Ruling:  Allowable Emissions
                     Baseline
        FROM:         Walter C.  Barber, Director
                     Office of Air Quality Planning and  Standards
        TO:          R.L. O'Connell,  Director
                     Enforcement  Division, Region IX
        DISCUSSION:   See SSR/18
        CR:          None

25.4    [REPLACED]
        DATE:         March 10,  1980
        SUBJECT:      Emission Offset Requirements in  Secondary Standard
                     Total Suspended Particulate  Plans
        FROM:         David G. Hawkins, Assistant  Administrator
                     Office of Air,  Noise, and  Radiation
        TO:          All Regional Administrators
        DISCUSSION:   Emission offset requirements are detailed  for TS?
                     nonattainment areas  violating the  secondary  standard
                     only.  If the  Federal  offset policy expires, no
                     major new sources may  be  permitted  to commence
                     construction prior  to  development and approval  of
                     a SIP revision for  an area violating the  secondary
                     standard only.
        CR:          None

25.5    DATE:         November 3,  1977
        SUBJECT:     Offset Credit;  G.M.  Plant, Shreveport, La.
        FROM:         Edward E. Reich, Director
                     Division of Stationary  Source Enforcement
        TO:          Howard G. Bergman,  Director
                     Enforcement Division,  Region  VI
        DISCUSSION:   See SSR/30
        CR:          None

-------
:S.5
       [MOVED TO 25.2]
25.7   DATE:
       SUBJECT:

       FROM:

       TO:

       DISCUSSION:
       CR:

25.8   [DELETED]
25.9
25.10
       DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:

       DATE:
       SUBJECT:
       FROM:

       TO:

       DISCUSSION:
       CR:
                   April  11.  1978
                   Offset Policy - Marathon Oil Company, Garyville,
                   Louisiana
                   Edward E.  Reich, Director
                   Division of Stationary Source Enforcement
                   Howard G.  Bergman, Director
                   Enforcement Division, Region VI
                   See  SSR/41
                   None
October 11, 1985
Acceptability of Emission Offsets
Robert D. Bauman,  Chief
Standards Implementation Branch,  CPDD
James T. Hi!burn,  Chief
Air Management Branch, Region IV
Memo responds to a request for a  ruling concerning
the Federal enforceability of emission offsets being
allowed by a local agency in Region IV, where neither
the operating permit program-nor  the specific operat-
ing permits, or conditions to the permits in question,
had been approved  by EPA..as part  of the applicable SIP.
The operating permit was not considered to be
Federally enforceable.
None

May 22, 1986
Use of Banked Emission Reduction  Credits (ERC's) as
Both External Offsets and Reasonable Further Progress
(RFP) Reductions
Darryl 0. Tyler, Director
Control Programs Development Division
David P. Howekamp, Director
Air Management Division, Region IX
Discussion of whether a source can use a banked emis-
sion reduction to  comply with the offset requirement
if this ERC had been relied upon  to demonstrate RFP.
None

-------
26.  NAA:   LAER

26.1    DATE:         March 23,  1978
        SUBJECT:      LAER Standards - U.S.S.  Corporation
        FROM:         Edward E.  Reich, Director
                     Division of Stationary Source Enforcement
        TO:          Gordon M.  Rapier,  Director
                     Air and Hazardous  Materials  Division, Region  III
        DISCUSSION:   See SSR/39
        CR:          None

26.2    DATE:         December 30, 1977
        SUBJECT:      Offset Requirements for U.S. Steel's Fairfield
                     Modernization
        FROM:         Richard D. Wilson, Deputy Assistant Administrator
                     Office of  Enforcement
        TO:          Paul J. Traina, Director
                     Enforcement Division, Region IV
        DISCUSSION:   See SSR/32
        CR:          None

-------
                         Additional  New Source Review Notebook Eniry
            Discussion Number:  26.3
Regulatory Citation (current):  40 CFR 5l.l65(a)(l)(x111)
                        (old):  40 CFR 5l.l8(j)(l)(x111)
                         Date:  October 29, 1987
                           To:  Marcia Spink,  Chief
                               State Air Programs Section
                         From:  Rich Biondi, Chief
                               Regulations Analysis Section


                      Subject:  LAER Applicability to Relocated Coating Lines


                           CR:
                   Discussion:  This memo discusses LAER applicability to an existing
                               source that-plans to relocate to the site of an
                               exisitng major source.

-------
27.  NAA:  STATEWIDE COMPLIANCE
27.1
27.2
27.3
DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:

FROM:

TO:

DISCUSSION:
CR:

DATE:
SUBJECT:


FROM:

TO:
DISCUSSION:
        CR:
April 2, 1979
Enforceability Requirements under Condition 2 of
the Emission Offset Policy
Edward E. Reich, Director
Division of Stationary Source Enforcement
Diane Ajl
Enforcement Branch, Region III
See SSR/49
None

June 17, 1977
Applicability of Offset Policy to Certain Choctaw
Salt Dome Project Emissions
Walter C. Barber, Director
Office of Air Quality Planning and Standards
R.T. Sutton, Commissioner
Dept. of Conservation (Louisiana)
See SSR/17
None

September 11, 1986
Ozone Control Strategy - Regional Office  Review  of
Potential Improvements in New Source Review (NSR)
Regulations
G.T. Helms, Chief
Control Programs Operations Branch
Numerous addressees (see memo)
Memo lists NSR "loopholes" that occur in  some State
regulations and that are inconsistent with Federal
requirements as adopted in 1980.   Closing the loop-
holes provides a potential control measure under the
ozone control strategy to minimize emissions increases
that otherwise might result from new source growth.
15.1

-------
28.   NAA:   SIP  PROCESSING
28.1
DATE:
SUBJECT:
       FROM:

       TO:
       DISCUSSION:
       CR:
September 11, 1986
Ozone Control Strategy - Regional  Office Review of
Potential Improvements in New Source Review (NSR)
Regulations
G.T. Helms, Chief
Control Programs Operations Branch
Numerous addressees (see memo)
Memo lists NSR "loopholes" that occur in some State
regulations and that are inconsistent with Federal
requirements as adopted in 1980.   Closing the loop-
holes provides a potential control measure under the
ozone control strategy to minimize emissions increases
that otherwise might result from new source growth.
27.3 [Hard Copy]; 15.1

-------
                         Additional  New Source Review Notebook Entry
            Discussion Number:  28.2
Regulatory Citation (current):
                        (old)
                         Date:  November 18,  1987


                           To:  Bruce Miller
                               Chief, Air Programs Branch

                         From:  Howard J.  Hoffman, Attorney
                               Office General  Counsel

                      Subject:  Approval of Implementation Plans


                           CR:  15.4 (hardcopy)
                   Discussion:  This memo discusses the OGC opinion on EPA options
                               when approving an implementation plan submitted by
                               States on behalf of a local agency.  The options
                               include how much EPA considers the local  plan a
                               separate document rather than just the delegation
                               of an already approved SIP and how much autonomy can
                               or should be given to the local agency with respect
                               to implementing the plan and enforcement.

-------
         1. PSD



Transition/Grandfathering

-------
               UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                      OFFICI OF oZNERAL COUNSEL

  3JECT.  ?SD Review Requirements for                  DATE:  August 25, 1976
        Modified Petroleum Refineries   .- (TC.

FROM:    Richard G. Stoll, Jr., Attorney v> ^
        Air Quality & Noise Control Division  (A-133)

TO:      Robert R. McXearin
        Assistant Regional Counsel
        Region VI


        This is in response to your memorandum of August 18.  It is
        my understanding that installation work began after June 1,
        1975 on a catalytic cracking unit at  an existing petroleum
        refinery in your Region.  The cracking unit had been  in
        operation in"Canada, and its components have been moved to
        your Region for  "re-erection."  You are seeking written con-
        firmation from me that such "re-erection" commencing  after
        June 1, 1975 would trigger the review procedures of SPA's
        prevention of significant deterioration (PSD) regulations
        (40 CFR 52.21(d)).

        This is to confirm that if the catalytic cracking unit will
        increase SO, and/or particulate emissions from the refinery,
        then unless there was a binding contract for continuous on-
        site construction executed prior  to June 1, 1975,I/ the
        "re-erection" commencing after that date would trigger the
        PSD review procedures.  If this work  has begun and no permit
        has been granted, the owner or operator is  in violation of
        an implementation plan and subject to enforcement under §113
        of the Clean Air Act.  40 CFR 52.21(e)(2).

        New or modified  petroleum refineries  for which construction
        or modification  has commenced on  or after June 1, 1975 are
        unouestionably subject to review*  40 CFR 52.21(d)(1)(xi).
        Onlv modifications which do not increase SO-) or particulate
        emissions  (or fuel  switchings) may be exempt.  40 CFR
        52.21(d) (1).  The fact that the modification .in question
        may be the result of moving certain equipment from Canada
        and "re-erecting" it  in your Rngion is totally irrelevant
        under the PSD regulation.
        XTSee  Roger  Strelow's  memoranda  of  December  18,  1975 and
        ""     April  21,  1976  to all  Regional Administrators.
£?* Barm iJ7
-------
                           -  2  -
It is also irrelevant for PSD  purposes  that  the  cracking
unit may be exempt from NSPS standards  because it was
originally erected prior to the proposal  for those  standards.2/
The basic purpose of the PSD regulation is to assure that
significant new emissions in an area do not  cause or contri-
bute to violations of the applicable air  quality increments.
This purpose would not be served by ignoring new emissions
caused by equipment which is dismantled in one area and  "re-
erected" in the area of concern.

cc:  George Stevens, DSSZ
     Kent Berry, OAQPS
27wnetner your Region's assumption regarding the NSPS
     exemption is correct is an open question as far as
     I know.  If you have not done so,* you should check
     this matter with headquarters' Division.of Stationary
     Source Enforcement.

-------
                                                                      1.2
1.2    DATE:         March 5, 1980
       SUBJECT:      Establishment of Baseline Date for PSD Areas
       FROM:         Richard 0.  Wilson,  Deputy Asst.  Administrator
                    Office of General  Enforcement
       TO:           Robert L. Davies,  Asst.  Administrator
                    Office of Fuels Conversion,  DOE
       DISCUSSION:   See PSD/100
       CR:           6.7 [Hard Copy]

-------
                    UNITED STATES ENVIRONMENTAL PROTECTION AGENC
      bU&J&CT:  Vvestvaco Paper Mill - PbU Ap

      FKUM:     Director
                bcationary Source Compliance Division
                Office of Air Quality Planning ana Standards

      Tu:       w. Ray Cunningham, Ac tiny Deputy Director
                Air and Waste Management Division (3AhUu)


           This is in response to your request catea January 11, 1983
      concerning the applicability or PbD to the Westvaco pulp ana
      payer mill located in Luke, nd.  The questions you pose in this
      request involve the issue of air qualilty increment consumption
      wnen reviewing revisions to state implementation plans (sl?s).
      Vvestvaco has, under consideration, a SIP revision wnicn will
      allow them to increase their tft>2 emissions.  Various versions
      of this bIP revision have been under consideration by the btste
      and EPA since 1975.  Your two specific questions ana our responses
      are as follows:

           1.  Tinder the current PSD regulations, including the
      August 7, 1980 promulgation, is there any provision for grano-
      f lathering SIS' revisions "pending" bdrore June of lb>78 (or any-
      other date certain so as to exempt them from PSD review)?  (Tnere
      was such a provision for yrancfathering unoer earlier PSD
      regulations.)

           The August 7, 198U regulations do provioe that a bl?
      relaxation pending at the time a baseline oate is esta&iisnea is
      exempt from inaiviaual increment analysis (4U CFH Sl.24(a)12)).
      The preamble to the August 7, 1980 rules states at pa^e FR 52715,
      "EPA is exempting from indivicual increment analysis bIP
      relaxations pending at tne time a baseline aate is estaolisned
      in the area affected by the revision-."  As explained further in
      tnat same paragraph such relaxations do consume increment.
      •However, increment consumption due to emissions trom tnese
      relaxations must be evaluated as part of a state's ^eripaic
      assessment."  Therefore, the indiviaual SIP revision will not
      nave to include an air quality increment analysis, but the state
      will have to consiaer this increase in emissions wnen conducting
£PA F.« 1320., 02.70)                                                     OFFICIAL F!L£ CS

-------
          junto,  Iii7b regulations old contain sucn a
prevision,  wnicii placec;  ail  emission increases rcsuitiny crotn
relaxations t<«nainv on /tu^u&t 7,  ls»77 into the uasenne
concentration,   however,  t,j?A noted  u»at  tflis exemption was no
longer  necessary anc statec  at
                      believes  tnis  exemption rrou
                 increment cons motion analysis is no
                 longer  necessary .   States  ano sources
                 have  been on notice since  June ib»7B
                 that  emissions increases at existin*
                 sources due to bli»  relaxations aust
                 be  evaluated tor ^ussible  incren-ent.
                 census* ticn.  No state or  source nas
                 &e«n  uncertain a& to tne at.j' 11 cable
                 baseline datcr or be«n piacec in an
                 inequitable position as to otner states
                 or  sources.  Tn ere tore, tooa^'s
                 regulations oo not  exer^t  true, increment
                 consumption analysis tnose bl?
                 relaxations not finally  a^^rovec by
                    prior to the baseline  oate in tne '
                          area.
     2.  li  tne re is  any  provision  tor •granatatnenn*" unaer
cur re r.t frsLr  regulations*  is  tn« ueyree or  continuity tr>at exists
in tne nestvaco case  sutticient to  class ir* tlte final limit tnac
Maryland will  estaolisn tor  Me&;tvacc  as ^art of a SIV revision
i..«snoinid be r ore tn« cutotr aatc  (June, l»7b or wr.dtev«r other-
cutotz oate  j-ou determine exists unuer current regulations)?
     Tne exemption  contained  in  the, June,  1970 HaD regulations was
included due' to  uncertainty as to hew  tne  1977 Clean Air Act
would attect ^.endin^ bli*  relaxations,   however, as or August 7,
sources and  states  nave had adequate notice  Uia^ such
relaxations  will consume  increment.  The August, l^ttU rules diu
provide some tlexiLiiilty r as mentioned earlier* b^  allowing
states to ^oet^one  this increment analysis tor bl> revisions
t-wnainj prior to June IS*, ist?U until the rirst periodic assess: -ei-it
attar the SIP relaxation  toecoa.es rinal.

     In suicoary,  the increase in actual emissions,  since tne
establishement ot the baseline oate, resulting trom the bl?
relaxations  will  consune  air quality increment,  bucn increment
analysis does not necessarily need to  be cot^letea rrior to tne
approval ot  tne  bIP relaxation,  however,  all  increases in actual
emissions occurring as a  result  ot it  oust be  consicureu bj tn«
state as a ^art  or  their  next periodic assessment.   -

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                                                                 1.4
           response  has  Oben reviewed ana concurred in a, cne
          L»veAojiff«rit  uiviaions  of  OAv'rb ana tiic utticc cc
counsel,   a^ouin  jou  navt  any questions ^Ifcase contact, .-.icr.
at
                          Eawara b.  Keich
ccx  Mike Trutna
     hecer
LN-J4l:K.biondi:
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                                                               /.£"
        UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                       WASHINGTON. D.C.  20460

                      February 13, 1378
                                                 OFFICE OF ENFORCEMENT


KEHORANDUM

SUBJECT:  PSD Applicability Determination

FROM:     Director
          Division  of  Stationary Source  Enforcement

TO:       Stephen A. Dvorkin,  Chief
          General Enforcement  Branch  - Recion  II
     This is  in  response  to your request dated  January  12,  1978,
concerning  the applicability of the  regulations for  prevention
of significant deterioration (PSD)  to the Virgin Islands  Re-
finery Corporation's  (VTRCO) petroleum refinery to be located
on St. Croix, U.S.  Virgin Islands.   The question at  issue is
whether VTP.CO had  commenced construction of the refinery  prior
to June 1,  1975.

     Commenced,  as  it was defined on June 1,  1975, means
that an owner or operator has undertaken a continuous program
of construction  or  modification or that an owner or  operator
has entered into a  contractual obligation to  undertake  and
complete, within a  reasonable time,  a continuous program  of
construction  or  modification.  This  definition  has been
refined to  apply to on-site construction (See nemos  from
Roger Strelow to Regional Administrators dated  December 18,
1375 and April 21,  1976,  copies attached).  Therefore,  only
significant and  continuous site preparation work such as
major clearing or  excavation or placement, assembly, or
installation  of  unique facilities or equipment  at the site
should be considered  a program of construction  or aodification
for purposes  of  §52.2Kb) (7).

     While  the question at issue is  whether VTRCO commenced
construction  prior to June 1, 1975,  it breaks down  into two
areas:  1)  Sas VTRCO  undertaken a program of  continuous
construction, or 2) has it entered into a contract  to undertake
a conrinuous  program.  It is not enough that a  major source
has purchased a  site  to qualify for  exemption from the  PSD
permit.  If this were true many major companies with large
land holdings could avoid the PSD requirements  by virtue"of
owning these  potential sites.  Sven if the sits clearing,

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new sources  (§51.18).  Failure t= obtain approval before
commencing on-site  construction of a source requiring such
approval would,  of  course, violate the applicable plan.
Therefore, any source of  the  type covered by the significant
deterioration regulations that has not yet received approval
to construct pursuant to  the. applicable plan should be  subject
to review.   In any  situation  where such approval is not
required for a source prior to cscnencement of on- si -a
construction, the lack of such approval will not be deter-
minative that the source  has  not commenced on-site construction.

     There may also be situations where, although actual on-
site work has not commenced or been contracted for, the
source  is so irrevocably  committed to a particular site that
it should be considered as having commenced construction.
Such situations  could include sources which are only a  few
days or weeks from  commencing on-site construction or sources
which have contracted for or  constructed unique site specific
facilities or equipment: which are not yet being installed
on-site.  Such situations will be rare but may be taken into
account in determining whether the source is in effectively
the same position as if it had commenced on-site construction.

     Because some sources may, JLn good faith, have construed
§52. 2Kb) (7) differently  before this guidance and have  since
entered into binding: commitments on the assumption that they
were exempt  from review,  it  is necessary to provide for such
cases.  Therefore,  where  a source has, in good faith, begun
on-site construction or entered into a contractual obligation
to begin on-site construction after June 1, 1975, on  the
good faith  assumption  that the source was exempt  from the
significant deterioration regulation, the source will not: -be
subject to  review.   Baiia*^ unon 'fq"~«aT ***' *•*• "•  it^^mg^^s
bv EPA personnel .that  the source  in question would not  be
subject to new source  ysvuw t^rua-r  +*e^» recuj.ar2.ons  wo cad
 on the assumption that the regulations do not apply to such
 sources.  Conversely aay source taat xs aware or tnis guj-aranee
 at~tEe""tiae on-site construction commenced or a contractual
 obligation was undertaken could not be considered to have
 done so ia good faith, reliance that it did not need to be
 reviewed.  Therefore you should review all major sources

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     UNITED 5T 7E5 ENVlrSCW.ENTAL

                    WASHINGTON. D C.



                      Ai"ic X : 1375
MEMORANDUM
                                  .3SiC~E2T;CN AGENCY
                                                    cC. OF
                                           AIR AIXO /'AST
SUBJECT:  PSD Regulations  -  Interpretation cf
          "Commencement  of Construction"
FROM:
TO
          Roger Strelow, Assistant Administrator
          for Air and Waste  Management1 (AW-443) /V-v -^

          Regional Administrators                 '
     Because  several questions have been raised about my
memo of December  18, 1975  on the above-referenced subject,
I would like  to stress  one basic point and clarify another.

     A.  The  "Contract" Exemption.   For a contractual
obligation  to qualify a source for  an exemption, 40 C?S
52. 2Kb) (7) requires that  the obligation be for a "con-
tinuous program of  construction or  modification."  Page 1 of
my December 18 memo states that ordinarily, "only signifi-
cant and continuous site preparation work, such as najor
clearing or e>cavation  or  placement, assembly,  or installa-
tion of unique facilities  or equipment at ^ha si-ts should: be
considered  a  'program of construction or aiodif icacion1 ."
 (Emphasis added)-.

     Thus,  as a general rule, for one to qualify for the
contractual exemption,  he  must have contracted  for continuous
on-site construction worST  The discussion in che first full
paragraph on  page 3 of  my  December  18 memo is r.ot intended
to provide  exceptions  to this general rule.  That discussicr.
relates to  s:.t.aations  in which even rhoucn a "contract" for
on-site work  were executed prior to June 1975,  the "contract"
might  still not qualify the source  for an exemption.

     Accordingly, the mere fact that a source had contracted
 for  the  fabrication of  a piece of equipment prior zz June
 1975  (i.e., placing an  order for a boiler) would not
 ordinarily  exempt the  source.  Only if a non-si te-work.
 contract  could fit within the "irrevocably committed"

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the other  two units.  On the other hand,  comsiencenent of
construction of the basis oxygen furnaces at a new grass--
roots  steel mill would' exempt other facilities,  such as a
blast  furnace, continuous casting operation, rolling mill,
and sintering plant, which are necessary  to operate the
basic  oxygen furnaces.

     As  this guidance indicates, there  is no clear lir.e
dividing those sources which, are grandfathered and those
which  are  not.  Judgments must be made  on a case-by-case
basis.   For »***? reason it is not possible to predict without
knowing  the facts of each case which  sources are subject to
FSO review.

     The policy contained in this guidance package has been discussed
af length with Regions  VIH and X and was also discussed and agreed to
at-the December 12 meeting in Dallas with the Regional Division Directors
for Air and Hazardous Materials.

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               UNITEL -fATES = :JVIRONMEM • AL. PROTECTION AGENCY


 'BJECT:   PSD Regulations - Interpretation            DATE-  C£-" 1 - 3 '5
         of Commencement of Construction                 "    -  «* —
FROM:     Roger Strelow, Assistant Administrator^   \J£* //'
         for Air and Waste Manaement  AW-433  /J-      xU'  -^
         for Air and Waste Management  (AW-433) /UJ-i

T0:       Regional Administrators                '
          This memorandum provides guidance on how the phrase
     "ceiaaence" as that tera is used in SPA's regulations to pre-
     vent significant deterioration of air quality (40 CFR
     §52.21) is to be interpreted.

          Section 52.21(d]1(2) of  the regulations requires that
     any of the 19 specified types of sources which "commence
     construction or modification subsequent: to June 1, 1975, are
     required to obtain a permit.  40 CFR §52.2Kb) (7) defines
     commenced as follows:

          "Commenced" means that  an owner or operator has
          undertaken a continuous program of construction or
          modification or that an owner or operator has entered
          into a contractual obligation to undertake and com-
          plete/ within a reasonable time, a continuous program
          of construction or modification.

          The purpose of the regulations to prevent significant
     deterioration is to ensure that a  source is not located at a
     site which would result in emissions from that source
     violating the applicable  increment.  Thus the term "commence-
     ment of construction" as  'that term is used in the regulations
     to prevent significant deterioration, refers to on-site
     construction.  Ordinarily thereforte only significant and
     continuous site preparation  work  such as major clearing or
     excavation or placement,  assembly, or installation of
     unique facilities  or equipment  at the site should be con-
     sidered a  "program of construction or modification"  for
     purposes of  £52.2Kb) (7).  However each case BUS- be reviewed
     on its own facts,  as noted below.

          There are  two additional  factors that ^should be con-
     sidered.   Under 40 Part 51,.  Regulations  for  Preparation,
     Adoption,  and Submittal of  State  Implementation  Plans  (SIP's),
     all  SIP's  are  required to include a procedure  for review
      (prior to  construction and modification)  of  the  location  of

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exception  (discussed in the first -full paragraph or. page 2
of my December 18 memo) would it qualify the source for an
exemption from review.  As my memo indicates, such situations
should be "rare."
     B.  Pemits Under '40 CFR 51.18.  I did not intend to
state that as an iron-clad rule, a source which had not
received a'51.18 permit would be subject to PSD review.
Since this is a reasonable inference from the discussion at
the top of page 2 of my December 18 memo, I should clarify
the matter.

     What I did intend to -say was that the absence of a
51.18 permit should be considered as a relevant fac-or in
determining whether a source could meet the "irrevocably
committed" exception  (discussed in the first full paragraph --
on page 2 of my December 18 memo) .  A source' s arguments
regarding an "irrevocable commitment" would have to be
looked at extremely skeptically if it had not yet even
obtained a 51.13 permit.

     Z should  .ote in concluding  this point that the  presence
of a 51.18 permit, by itself, neither constitutes the
commencement of construction nor  an  "irrevocable cozsitsient"
to do so.
 cc:   Regional Air Division Directors
      Regional Counsel

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intending  to  construct  in  your Region and notify those
sources which are  subject  to review  in accordance with this
guidance.

     Finally,  40 CFS. §52.2Kb) (7)  states that an owner or
operator has  commenced  construction  not only when he has
undertaken a  continuous program of construction or modifica-
tion himself  but'also when he has  entered ir.to a "contractual
obligation to undertake and complete, within a reasonable
tine,  a continuous program of construction or modification".
The question  of whether a  contract represents a "contractual
obligation" will depend upon the unavoidable loss that would
be suffered by a source if it is required to cancel such
contract..   It is clearly beyond the  intent of these regula-
tions, for example,  to  permit a source which has only a
contract revocable at will to escape review under these
regulations.   Correspondingly, where the contract may be
cancelled  or  modified at an insubstantial loss to the plant
operator,  the proposed  source should not be allowed to
escape review under these  regulations.  The determination of
whether a  source will suffer a substantial loss if the
contract were terminated and therefore whether there is, in
fact: a "contractual obligation", must be made on a case-by-
case basis as there are no general guidelines that would
cover  all  situations.  Factors that  would be considered
would  include the  question of whether or not the contract
could  be executed  at another site  or modified for the site
in question and  the amount of  any  additional costs of con-
structing  at another site  or of  cancelling the contract.

     Additional 'questions  may  arise  concerning the applica-.
bility of  the PSD  regulations  to  phased  construction projects.
If a new  stationary source will  contain  a number of facilities
to be  built in- a program of phased* construction, the entire
project  should not automatically be  exempt  from review  just.
because  one of the facilities  is  grandfathered-  Only chose
additional facilities which are  necessary  for the operation
of  the grandfatherad facility should be  exenpt  from review.

      For example,  if a power company has commenced con-
struction only on the first unit of a planned  three-unit
power plant prior to June 1,  1975, the other two units  would
normally not*be exempt from significant deterioration  review,
since the first unit can operate completely independently of

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 which VIRGO has accomplished to date,  satisfies the conten-
 tions in Strelow's memo,  it is ray opinion that VIRGO could
 not  have undertaken a continuous program of on-site construc-
 tion in light of the fact that they have not resumed their
 construction for a period in excess of two and one-half years.

      It appears from item $2 in your memo that VIRGO's liability
 under their site, preparation contract is limited to 3250,000.
 However/ liability pursuant to a liquidated damages provision,
 should VIRGO cancel the contract entirely, is a different
 issue from how much liability VIRGO could incur for site prep-
 aration work done without its written approval.  It is our
 position that the $250/000 does not constitute a significant
 expenditure.  However/ should there be a large difference in
 liability incurred by VIRGO resulting from cancellation of
 the  contract this issue may be re-opened.

      In summary, based on the information submitted in your
 memo, it is the determination of this office that VIRGO will
 not  suffer a significant loss should they be unable to con-
 struct this source at this site.  This is provided, as dis-
 cussed previously that the figures in item 12 of your
 memo do not significantly change.  Therefore/ I believe that.
 the  proposed VIRGO petroleum refinery has not commenced con-
 struction and is subject to the PSD regulations.  Further,
 VIRGO, should they not obtain a PSD permit prior to March I/
 1978, will be subject to the new PSD requirements as proposed
 on November 3, 1977.

      If you have any additional questions or comments/ please
 contact Rich Biondi (755-2564) of my staff.
                               Edward E. Reich
 Attachment
 cc:  Hike Trutna - CPDD
Note:     Although  this determination was made  based on
          the  definiton of  "commenced"  contained  in 52.21  (b}(7),
          the  results of  this decision  would  not  have been
          altered had the definiton  contained-in  the Clean
          Air  Act Amendments  (§169(2))  been used  instead.

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UNITED STATES ENVIRONMENTAL PROTECTION. AGENCY
              WASHINGTON. O.C. •20450

                   JUL !   £75
                                         OPHCS Or
                                          . i
                                          ii
                                           •   Mil  • •  1<^T3
                                          n  .-J!.:i.3.8
MEMORANDUM

SUBJECT:  "Commence Construction" under  PSD

PROM:     Director,                                 _. _...-•
          Division of Stationary Source  Enforcement ^^^-^ ^

TO:       David Kee, Chief Air Enforcement Branch
          Region V

     This is in response to your memo  of April  7,  1978,
requesting guidance on how to apply  the  definition of
"commence construction" under the new  PSD regulations.

     One of the requirements a major new source or major
modification must satisfy in order  to  have .commenced  con-
struction is that the owner or operator  must have  obtained
and: must continue to hold all necessary  preconstruction
approvals required under the applicable  SI?. If all  neces-
sary preconstruction approvals have  not  been obtained and
maintained, construction aas not commenced.   Your  memo
requests guidance on the application of  this requirement
in cases where a State grants limited  permitsr  grants
permits in stages, or allows site work without  a permit.
Rather than providing you with general^examples to follow,
we would prefer to address individual  situations involving
these State permitting procedures on a case  by  case
basis.  In this manner, consistency can  be maintained in
applying the regulations to unique  and complex  situations
which sight not fit a garerai example.  If you  are aware
of specific cases where unusual  State  permitting proce-
dures affect applicability of PSD,  please feel  free  to
refer them to us.

     In addition to-obtaining all required  permits,  a
source must also satisfy one of  two additional  requirements
in order to commence construction.   A  source must either
1)   begin a continuous program  of physical  on-site con-
struction or 2) enter  into a  contractual obligation to
undertake a program of on-site  construction  to  be  completed
within a reasonable time.  Three specific questions re-
garding these requirements were  raised in your  memo and
are  addressed below.
                                                         ?r=T!
                                                         •ill

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     1)  What constitutes 'physical on-site construction?

     We have interpreted physical on-site construction  to
refer to placement/ assembly, or installation of materials,
equipment, or facilities which will make up part of  the
ultimate structure of the source.  In order to qualify,
these activities must take place on-site or must be  site
specific.  Placement of footings, pilings and other  materials
needed to support the ultimate structures clearly  consti-
tutes on-site construction.  As stated  in the preamble
to the draft regulations, "it will not  suffice merely to
have begun erection of auxiliary buildings or construction
sheds unless there is clear evidence  (through contracts
or otherwise) that construction of the  entire facility  will
definitely go forward in a continuous manner".  Activities
such as site clearing and excavation work will generally
not satisfy the commence construction requirements.

     2)  What constitutes a contractual obligation to under-
take a program of construction?

     In order to satisfy the commence construction require-
ments, a contractual obligation must be a site specific
commitment.  The types of activities which will be con-
sidered site specific for purposes of a contract are identi-
fied in question *1 above.  Contracts for work on  footings,
pilings, and other site specific materials and equipment
will clearly satisfy the requirement while contracts for
site clearing and excavation will not.  The legislative
history clearly indicates that contracts for non site
specific equipment, such as boilers, will typically  not
suffice, regardless of any penalty clauses contained in the
contracts.

     A .contractual obligation for purposes of commencing
construction must also be one which cannot be cancelled or
modified without substantial loss.  The PSD regulations
provide guidance on determining whether a loss should be
deemed "substantial".  A loss which would exceed 10% of
the total project cost will clearly be  considered  sub-
stantial.  Whether a loss of less than  or equal  to 10%
of the total project cost will be considered substantial
will be determined on a case by case  basi-s.

     3)  What constitutes a reasonable  time?

     In order to assure that construction proceeds in  a
continuous manner and is completed within a reasonable

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time,  the regulations require that a break  in  construction
of greater than 18 months or failure to  commence  con-
struction within 18 months of PSD permit  issuance will
generally invalidate a source's PSD permit.   This 13 month
period may be extended by the Administrator  upon  a
satisfactory showing that an extension is  justified.

     Your memo raises a question as to what  test  should
be used to decide, for enforcement purposes,  if construc-
tion has commenced when a source has proceeded  on a pro-
ject without a permit.  The PSD regulations  state that
no major stationary source or major modification  shall  be
constructed until the preconstruction approval  require-
ments are met.  If a source subject to PSD review has
begun on-site construction without a PSD  permit/  the
source is in violation of §52.21.

     Additionally, your memo requests guidance  on Sections
113(a)(5)f 113(b)(5), and 167.  My staff  is  currently
preparing a guidance document which addresses implementa-
tion of these sections and which will be  forwarded to you
upon completion.

     If you require any further assistance,  please contact
Libby Scopino  (755-2564) of my staff.
                               Edward E.  Reich
 cc:  Mike Trutna         Peter Wyckoff
     Eric Cohen          Linda Murphy
     Ken  Eng              Glenn Hansen
     Winston  Smith       Steve Rothblatt
     Don  Harvey          Bob Chanslor
     Dave Joseph         Lloyd Kostow
     Mike Johnston       John Johnson
     Bennett  Stokes

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  7 ?   UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                      WASHINGTON, D.C. 2C-1SO

                       August IS,  1913
Henry V. Nickel, Esq.                             CCMCIUU.
Huntcn  & wiiliass
P.O. Boy. 15230
1730 Pennsylvania, Ave., N.W.
Suite 1060
.Washingtonr D. C.   20036

          Set  Section  52.21(iH3)  of the PSD Regulations

Dear-Hr. KicJcel:

    .. "This is in response  to your lettsr dated July 31, 1S7S.
In  that latter you  asked  for  sy interpretation cf section
52.21(i) (3} of the  regulations for the prevention of signifi-
cant air qualitv deterioration ("PSD") which SPA, srca-^lgated-
on  June 19, 1973.   43 TR  26323.

     A  set of circumstances cemon to sorse electric utilities
pron»pted your request.  According to your letter, these
utilities had b'.gun physical  cr.-sits' construction on several
power plants well before  June 1,  1575.  In the early 15"G's,
however, these utilities  tc=rcrarily disccn-ir.ued construc-
tion on the power pianzs,  sera for as Ion?-as IS ssntr.s cr
sore, because of financial difficulties and reduced lead
growth.  Ncnsthaless, by  :-Sarch 1, 157S, the utilities had
restarted, and in sorae  iastansss cc-pleisd, constructicr. or.
the plants.  Your letter  su'ccss-s,  and therefore I an:  .
ascuaing, that construction on the cover plants "ccrmsr.ced,"
within  the aa&ning  cf Section 159(2)  cf the Clean Air Ac^,
before  June 1, 1275. \/  In other v:ords, the u-ilities had
not only begun construction before then, but hcd also
obtained all preconstruc-cion  pcrni-s required under the
applicable stats inplessr&'saticn plan  ("SIP") .
I/   I should note,  too,  that in using the phrase "power
""   plant" I have  in mind rssrsiy a single electric generat
     ing unit having no sore -shan one boiler, net a project:
     consisting  of aany units to be constructed in distinct
     phases.
     T- •                                 REGIONAL
                                      IX r  /•/••» * ?* '37** ' I I !
                                       s  *»r   /• ' ~. i«  i i i
                                      P. i  w u'  " "     ' : ; !

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                            - 2 -

      As you  point out/  if one were to apply the relevant
 provisions of the June  IS regulations literally to these
'circumstances,, one night conclude chat those regulations
 apply to those cow^r plants whose construction the utilities
 discontinued for  13 nonths, or isorc.   Section 52.21(i)(l) of
 the regulations gives the general rule that the regulations
 apply to any "major stationary source cr major modification."
'These power  plants are  undoubtedly "major stationary sources,
 and none of  the exceptions to the general 'rule which appear
 on the face  of the regulations fit the facts.   The exception
 in -section 52.21(i)(3)  coses close to fitting, but that
 section only provides that the regulations do  not apply to:

          (aj-sajor stationary source or major
          modification  that was ncz  subject
          to 40 C?a 5-2.21 as in'effect before
          March 1,  1978,  if the owner or
          operator —

          (i)   Obtained  all final Federal,
          State -and  local ^reconstruction
          peraits  necessary under the
          applicable  State implementation
          plan before March 1~,  1973;

          (ii)  Commenced construction before
          March 13; 1979;  and

          
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—2 Claan Air
      Aft »r exarj.nir.g tne PSD provisions  of
 and the June 19 regulations, I have concluded  thsr -hose
 regulations do not apply to any sour 03 or rodifi cation en
 which construction cczsier.cec within th«  neanirg of Section
 169(2)  of 'the Act before August 1, 1977. 2/  Sines the Jure
 J.9 regulations, and, particularly Seczicr. .52.21 (L'j (1)  of
 these regulations isf*therefcre inapplicable  to tha sources
 that concern "you, it is unnecessary to consider the ccrrecir.ess
 of your interpretation of Section 52.21(i) (3) .

      My conclusions are based primarily  en, Secticr. 16E (b)  cf
 the Act.  In pertinent part that section provides:

           In the case of a facility on vhich con-
           struction was correr.cec (in accordance
           with the definition of "cerrisneed11 in
           section 169(2)) after June 1,  1273,  and
           prior to the enactment . of ths  Clean Air
           Act 'Aaenczien-cs of 1577, the review and.
           permit-ting of such facility shall  be  in
           accordance with the regulations for  the
           prevention ' of significant deterioration
           in effect prior to the enac=isr.t cf  the
           Clean Air Act A=sncr:ants cf IS 77.

 Put 'differently, section: 168 Rs) declares thai  the PSD
•regulations in effect before August 1, 1277, net any in
 effect after that tine, govern the rsrisv and permitting of
 any souice on which construction ccrzisnosc vizhin  zhs
 meaning of section 165(2) betveez June 1, 1373,  and 'Au rust
 7, 1377. Plainly, Congress thcurht that  it should  "grand-
 father11 such sources.   Since sources en vhich censzrueticn
 commenced within the ssaning of section  169(2}   bsf ers- June
 1, 1375, are certainly no less deserving cf  crandfa^hsr
 status  than sources en which construe Tier, cerrrsnesd af-sr
 that time,  Congress sust have intended to exerpt ther,  as
 well froa any"- regulations in effect -after August 7, 1977.
 In the  face of this Congressional intent, 2?A could nee
 apply uhe new ?SD regulations tc any setrca  or.  vrhieh cen-
 struction ccrrienced within the esaning cf section  155(2»
 before  August 7, 1977.   Section 52.21Ci)  (1) sssc bs read,
 consequently, as not applying to sources and noe^ificizions
 commencing construction before August 7.
 2/    I  am e^^jressing here no opinion en whether a source
 ""    which coic=enceo construction before June 1, 1575,
      within the meaning of section'52.21fb)(7) cf ths prs-
      August 7 regulations, but net* wizhin the r.ecning of
      section 1"69 (2) , would be subject ~o ?SO ravisv.  Also,
      I  do not intend to affeei rhe rulss fer sranefszhcring
      independent facilities at a nulci-ceiliv/ coures v.-ien
      was  or is beincr ccr.szructac: ir. diseinee ::::r.r2S.  For
      t::osc rules,  see 42 ?7x 2S29-5 (J^r.s 19, 1273).

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                          -4-

     My interpretation of Section 52.21(i)(l)  is  supported
by the preamble to the June 19, 1973 regulations.   The
portion of the preasble under the heading  "Ccmencc Con-
struction" explains:

          It is irportant in nany cases to
          detemine whether a source has
          cozcaenced construction by z certain
          date.  If a source corsr.er.csd con-
          structicr. before June 1, l'i?75, it
          would be exeapz (or "ersnsr'a-r.erec")
          from PSD review si-coce-cr.er.  40 CJS
          52.21(d).  Iz a source cc=r,er.cec
          construction before August 7/ I977/
          it would be exempt frca the a=end-
          aents that Z?A aronulgated en
          November 3, 1577.  42 PS 57439.

43 PS 26395 (June 19, 1978) (esphasis added).  One car.'find
support for. ny interpretation also in the definition of
baseline concentration (Clean Air Act §165(4}; S32.21(b) Cll)/
43 FR 26404) and Section 1=5 U) of the Act.

     Therefore, with regard to power plants vhcse caastrustis
the ntilities discontinued, I beliere that they are net
subject to the June 19 regulations, if indeed ccns-=r==ricn
on then ccracenced -cithin the seaning of section 1S9 (25
before June 1, 1S75, ana the discontin-ances vare taspcrarv.
I should note that, if the utilities in disccnz^nuing
construction intended in fact to close the projects perr-ansr.tly
rather than to suspend theri tesporarily, the reopening cf
the projects would"be subjecc to the new regulations/  since
the 'power plants wculd upcn closing hare ceased zo exis-  f cr
PSD purposes.  Khezher a"cisccntinuance were tcnpcrarv cr
pernanent- would have to be determined on a case-by-case
basis fraa all of the facts and circusstances.  A disccn-
tinuance of 18 s»nths or'nsre nichr'vsll raise a strong/
rebuttable presur^sicn thst the utility inter.dad ro clcsa
the project cersanently.  See especially, 40 CT3. 52.21Ce)
(1977).

     If you have anv cuesticns, please call Perer Wyckoff
(755-0744)
                            Very truly yours,
i t
                            fi&n Z. larnstein
                            General Counsel  (A-130}
 CH«
 ** •

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        •JNI7ED STATES ENVIRONMENTAL =RCTECT1CN AGENCY

                      WASHINGTON. 0 C.  20*50



                        JUN  I 9 iSSO

                                                OFFICE OF ENFORCEMENT
SUBJECT:  PSD and NSPS Apolicability Determination for
          Guardian Industries' Flat Glass Plant in
          Corsicana, Texas

FROM:     Director
          Division of Stationary Source Enforcement

TO:       Diana Dutton, Director
          Enforcement Division, Region VI

     I have  reviewed vour memoranda of March 11 and March 17,
1980, regarding Guardian Industries' (Guardian/the Company)
claim that it "commenced construction* of a flat glass, plant
in Corsicana, Texas prior to March 19, 1979, and is therefore
not  subject  to the Prevention of Significant Deterioration
(PSD) regulations of June 19, 1973.  Guardian has also
asserted, based on a "commenced construction" date, that the
plant's  furnace is not covered- by the New Source Performance
Standards (NSPS)  for glass manufacturing facilities proposed
on June  15,  1979.  I agree with your conclusion that Guardian
has  failed to adequately demonstrate that it commenced con-
struction of its  Corsicana flat glass plant by March 19, 1979.
Without  an adequate showing of comsencement of construction
by that  date Guardian  is subject to the June, 1978 PSD regula-
tions.   I also agree with your conclusion regarding the
applicability of  NSPS  to Guardian's glass manufacturing furnace,
Because  the  Company has not "adequately demonstrated that it
entered  into a contract for a continuous program of construc-
tion of  the  furnace by June 15, 1979, NSPS applies to  the
furnace.

PSD

     Section 169(2)(A) of the Clean Air Act, the June  19,
1978, PSD regulations  (40 CFR 52.21), the Strelow memoranda
of December  18,  1975 and April 21,  1976, arrc Montana Power
v. EPA,  13 ERC 1385  (9th Cir. 1979) provide definitions and
estanlish criteria  for determining  whether a PSD sourca has
"commenced construction."   In general, EPA regulations allow
the  "orandfathering" or  exemption of a source  fron  the
June 19,  1978, PSD  review and permitting requirements  only
if,"  as  of March  19,  1979, the source had either  begun  a
continuous orogram  of  physical on-site construction,  entered

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intn bind inn aare«ner.r.s or contractual obligations  for
on-site construction which could not nave been  cancelled  or
modifier! without substantial loss or .entered  into binding
aareements or contractual obligations for off-site  construc-
tion which irrevocably committed the source to  a specific
sits.  In addition, the source must have obtained,  by March  1,
197S, certain oreconstruction oemits necessary under the
Stafi l-nl»T.entation Plan.  "Construction" is defined in  the
?Sf? reculations >as  fabrication, erection, installation or
notification of the source.

     assessment of  "substantial loss"  is a case-by-case
analysis which involves calculating the loss  a  source would
have'sustained as of March 19, 1979, if contracts for
continuous on-site  construction were cancelled or modified.
This loss is then conpared to the total project cost.  If
the loss is greater than 10% of the total project cost, it
is considered a substantial loss and the source is  considered
to have commenced construction for PSD grandfathering
purposes.  If the loss represents less than 10% of  total
project cost, it may or may not be considered a substantial
loss defending on whether, as of ".arch 19, 1979*, the source
han committed itself, financially and otherwise, to a
particular site for a particular facility to  the point that
relocation was not  possible and a delay or substantial
modification would have heen severely disruptive.

     Assessment of  "irrevocable commitment" is also a case-
bv-case analysis dependent upon whether, as of March 19,
1979, the Company had entered into contracts or binding
aoreenents for the off-site construction of a source which,
due to characteristics uniaue to the source or  site, can
only be located at  a specific site.  In these cases, the
adecuacv of the commitment is also dependent  upon whether
the site-specific contract or agreement could have  been
cancelled without a substantial loss under the foregoing
analysis.

     a.s outlined in your memoranda and attached documenta-
tion. Guardian had not beaun what amounts to  a continjous
program of physical on-site construction by March 15, 1979.
To avoid PSn requirements Guardian must rely on its State
permit, issued on February 23, 1973, coupled with contractual
obligations or binriine aoreements.  Guardian,  points to the
following exnenriitures and arrangements in «upoort  of its

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     (1)  3400 hours snent by Guardian's Sngineerinc Depart-
     ment during 1973 and the first quarter of 1979 preparing
     design criteria, specifications and drawings;

     (2)  various engineering authorizations including:

       (a) June 1973, Decemoer 1979 and February 197S,
           arrangements with Efficient Engineering Company
           authorizing uo to 3140,000 in engineering services
           (5120,000 paid out as of March 19, 1979),

       (b) June 1978, December 1973 and March 1979,
           arrangements with St. Clair Technical Services
           authorizing up to 3185,000 in engineering services
           for process equipment ($146,000 paid out as of
           March 19, 1979),

       (c) a June 1978, arrangement with General Machine
           Design authorizina up to $25,000 in engineering
           services for process eauioment ($14,000 oaid out
           by Parch 19, 1979);

     (3)  a February 16, 1979, letter to Toledo Engineering
     Company/ authorizing design of a glass melting furnace;

     (4)  purchase of land on September 7, 1978, for $205,081.05;

     (5)  a February 1979 arrangement, as evidenced by a
     letter to the'corsicana City Manager, to reimburse the
     City for installation of a sewer lift station and water
     line with reimbursement contingent on the development
     and  installation of a revision to the City's water and
     sewer system;

     (6)  an April 24, 1978,"arrangement with Southwestern
     Laboratories for soil borings, boundary surveys and
     other site work costing $14,700.

     I have reviewed the documents submitted by Guardian
regarding each of the above.  I have the following sugges-
tions concerning use of these items in finding the total
project cost to loss ratio for substantial loss purposes and
for detemunina the extent of Guardians commitment:

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j-atn i - 7*ie 3400 hours of  in-nouse  nesigr. wor!<  cannot
he counted in the ratio because Guardian's suc-ission
does not indicate that the  work involved  contracts  for
site-specific construction  or contracts for continuous
or.-site construction.  Further, no dollar amount
or information which could  be used to determine  such an
amount has been provided even if this in-house work
could he shown to involve site-specific or or.-site
construction contracts.

     2 - The enqineerinq agr-err.ents  authorizinq  up
to 5350,000 in costs (3230,000 actually paid out by
March 19, 1979), cannot be used unless the agreements
are shown to be site-specific contracts for the con-
struction of the source or contracts for continuous
on-site construction of the source. The Guardian
submission does not provide sufficient information in
order to make these determinations.

Iten 3 - The February 16, 1979, letter to Toledo
Engineer inn regarding the glass furnace should not be
used.  As you point cut, the letter represents, at
best, an "authorisation to proceed with design of ons
500 ton/day regenerative flat glass furnace" rather
than a contract for the construction of a site specific
511,000,000 furnace or a contract for continuous
on-site construction of the furnace.  Guardian has
supplied no estimate of what would be an appropriate
aoount to use in determining exact liability to Toledo
if Guardian had cancelled or modified the February,
1979 arrangement as of '-iarcii 13, 1579.  Even if, for
argument's sake, this letter does reoresent such a
contract, I aoree with your analysis of Guardian's
orobable liability as roughly one month of the usual
contract measure of damages.

Ite? 4 - Cecause land can be re-sold or held for other
pur noses, a contract for its purchase is not an example
of either a contract for the construction bf a site-
soecific facility or for a contract for continuous
on-site construction.  Therefore, the land contract
should not be used in d et era i nine substantial loss or
irrevocable

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     I » gn 5 - The reimbursement arrangement with Corsicana,
     wnicn was contingent on deveioorcent and revision of the
     City's water systems and finalization of the plant plan,
     should not be used.  Guardian has not provided informa-
     tion on what, if any, reirnbursaole costs were actually
     incurred bv the City of Corsicana as of March 19, 1979,
     nor has it demonstrated any contractual obligation with
     the City as of that date.

     Item 6 - Your memorandum discusses 514,000 in initial
     site work pursuant to a September 13, 1979, agreement
     with Metric Construction.  Guardian's documentation,
     however, does not contain any indication of an initial
     site work aeireenent with Metric Construction.  The
     Company's submission does contain a copy of an April 24,
     1973, purchase order made out to Southwestern Laboratories
     authorizina 514,700 for field, laboratory and engineering
     reoorts and for boundary surveys.  For the purposes of
     this memorandum I have assumed that the initial site
     work mentioned in your March 11, 1980, memorandum refers
     to the Aoril 1978, Southwestern Laboratories purchase
     order.  'Shile this work was performed on-site, it can
     not be considered as a fabrication, erection, installa-
     tion or modification of the source, and thus does not
     constitute a continuous program of physical on-site
     construction of the source.  The work was also not
     performed pursuant to an off-site source construction
     contract.  Thus, the S-14,000 expenditure does not
     establish that continuous on-site construction had
     cor.3»enc8-i, nor should it be use« in determining sub-
     stantial loss or irrevocable consitment.

     Upon review of your memoranda and the attached documenta-
tion it apnears that Guardian" has not adequately demonstrated
that the above items involved binding agreements or contractual
obligations fo'r construction of a site-specific facility or  for
continuous on-site construction of the source.  'Without more
detailed information and documentation from Guardian regarding
the Company's commitment to the Corsicana site, I must
conclude that the Company had not conenced construction by
March 19, 1979.  For this reason, Guardian is subject to the
PSD reculations of June 1978.

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                           -6-

     I sugqest that you issue a preliminary applicability
determination providing a 30-day period during which Guardian
would have the opoortunity to present more detailed informa-
tion on what items the Company feels should be included in
determining whether it commenced construction by March 19,
1^79.  If Guardian does not submit additional materials by
the end of the 30-period, I would issue a final determination
at that time and would publish it in the Federal Recister.
If Guardian does submit additional information, it snould be
carefully evaluated prior to issuing a final determination.
In any case, the final determination should be published in
the Federal Register.

NSPS

     The issue involved under NSPS is whether construction
had commenced on the affected facility, the glass furnace,
on or before June 15,  1979, the oroposal date of the glass
furnace standard.  If  constuction commenced on or before
June 15, the facility  is not subject to NSPS.

     For MSPS purposes, construction is defined under
40 CFR 60.2(a) as fabrication, erection, or installation of
an affected facility.   Commenced, under 60.2(i), means that
an owner or operator has undertaken a continuous program of
construction or modification or that an owner or operator
has entered into a contractual obligation to undertake and
comolete, within a reasonable time, a continuous program of
construction or modification.

     The issue presented here is whether Guardian entered
into contractual obligations to build a glass furnace prior
to t:-« proposal date of the glass furnace standard.

     Evidence of entering into a binding contractual ooliga-
tion can be established by proof of significant lost expendi-
tures which would be directly attributable to the cancellation
of a contract for construction or modification of the affected
facility.  Typically this evidence consists of a penalty in the
nature of liquidated damages for contract breach.  The Agency
also has found that a letter of intent can establish a binding
contractual obligation where cancellation of the order conten-
alated by the letter of intent would sunject the prospective
buyer to significant penalties.

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     Guardian's Documents show that the purchase order for a
qlass furnace from Toledo Engineering was written October 25,
1979.  *ut Guardian asserts its February 15, 1973, letter to
Toledo =*naineering as the contractual obligation which
establishes th«» Company's coonence construction date.  The
February 1979, letter,"by itself, is difficult to accept as a
bindina contractual obligation for the construction of the
furnace for several reasons.  First, the letter expressly
authorizes design of the furnace rather than its construction.
Further, the letter does not annoar to represent a final and
bindino agreement due to its references to a purchase order
which v/ill follow, a later finalization of contract details,
and a firm nrics only after specifications and designs are
finalized.

     Guardian's February 22, 1380, letter to Diana Dutton,'
Director of the Region VI Enforcement Division, allages that
calculations, drawings, and studies were executed by Toledo
in reliance on Guardian's February 1979 letter.  However,
these activities appear tc relate to the design, and not to
the construction, of the furnace.  In the absence of clear data
demonstrating that Guardian had entered into a contractual
obligation for construction on or before June 15, 1979, I
consider Guardian subject to MS?S requirements for glass
manufacturing plants.

     \s I recommended in the PSD section of this nemo, I
would issue a preliminary anplicability determination which
would allow Guardian a 30-day period in which to show that a
contractual obligation did exist on or prior to June 15, 1979.

     If you would like to discuss this issue further, please
contact Rich Riondi of aiy staff at 755-2564.
                           Edward E. Reich
cc:  Michael James
     Diehard Rhoads
     Don Goodwin

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   DATE:  Kerch 11, 1980
*uaj£CT-.  ?5i?>y>a/»3r5 Applicability Detsrrcinanoris for Guaroisn Industries'
         new f loaa(jcJreSsDlant y^crejcana. Texas
     II
         Diana
         Enforcement Division  (6AE)

     T0  Edward €. Reich, Director
         Division of Stationary Source Er.forceeent (EW-341J

         We received a letter  dated Kovcm&er 6, 1979, froa a law firm in North
         Carolina concerning the possible construction of a new float glass
         plant by Guardian Industries without a PSO penr.it.  Ke sent a request
         for information to Guardian and received the response by letter o'ateo
         January 2, 1280.  Guardian claimed to have ccassenced construction
         prior to the proposed KSPS for the glass eanufacturing industry,
         Subpart CC, 44 FR 34S53, June 15, 1979.  Guardian also claimed to
         have act the "grandfathering" provision for PSO, 40 CFR 52.21(i)(3)
         by obtaining all preconstruction permits necessary unser the SIP
         before Karch 1, 1978, by cocrcencinQ construction before &rch 19,
         1979, and did not discontinue construction for a period of 18 months
         or Bore.
 Analysis for PSD Regulations

 Guardian bases its data to have commenced construction on its having
 so financially cccnitted itself tc a particular site for  its glass
 plant that relocation or substantial modification would be severely
 disruptive and financially damaging to the company.  As evidence of
 this cocBTttcent prior to torch 19, 1979,  Guardian gives:

      (1)  3400 hours expended by the Guardian Engineering Department
>          * preparing design criteria, specifications anc drawings for
»          the plant»

      (2)  contracts for engineering services for $350,000,

      (3)  contract with Toledo Engineering and its ccnstruction sub-
           sidiary to initiate engineering  and authorizing the ordering
           of long lead naterials for Lhe glass melting furnace for
           £1,000,000,

      (4)  purchase of plant site for $205,031.85,

      (5)  commitment to the City of Corsicana to reimburse the City
           for water and sewer systems for 5105,000,  and

      (6)  contracts for initial site work  for $14,000.
     —• >n»-4 <*••. 3.74T

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        In addition Guardian clains that its manner of doins  business  is
        sosewhat different frcct ather companies.   Guardian claims  that  it
        does nost of the engineering vsork in-house as oppossc to other  companies
        that let turnkey contracts.  Only the glass furnace contract was a
        turnkey contract.  Therefore, Guardian claiii.s that its forr.al  contracting
       i point 1s later than eost companies.   Guardian says that each of its
    "  /plants requires individual and specific design.  Thus the  coafflilaant
     '  i to the site is Blade prior to the letting  of contracts.

        Guardian points to its contract Kith Toledo as primary evidence of
        Its coesrftaent,  Toledo has built each of Guardian's  three glass
        furnaces*  This contract vas let without  competitive  bidding anc was
      '.based on the Ions term relationship between the companies. The purchase
     .  Border which was. issued in October 25, 1979, is cleiiEed to  be just a
     '"" / f ornality.  Guardian claims that Toledo initiated engineering;,  desAsn, "J .   A^
    .;  and procurement without a purchase order contract. Guardian has       f**r" -.(
  «-"•' subnitted evidence of the aany discussions with Toledo establishing    -r/iv * '*•
 J  "",  the design criteria of tfcc furnace prior to the forrsal aut fieri zati en.
 -•-""•'   Guardian has obtained a letter from Toledo statins Toledo was  of the
"'•«•
,
•' *"
   *
        opinion that Guardian had coRtnitted  itself to the awarding of the
        contract to Toledo prior to the  forraal purchase order.

        Koreover, Guardian claies that their consnitcent to this particular
        site should be judged in the overall plan of the cocspany.  Guardian
        1s going to shut down an existing  plant with the scheduled start up
        of the Corsicana plant in Kovecber,  1SSO.  If the Corsicana plant is
        delayed, the cospany will not be able to  fulfill its contracts and
        will suffer severe financial
        In our analysis of these facts we are §uided by the Strelow mecoranda
        of Oecesber 18, 1975, and April 21,  197G,  the discussion  in the preamble
        to the PSD regulations of June IS, 197C, and the  decision in .'-fcntana
        Porer Cccsany v. EPA. 13 ER C 1385,  1979.   For the purpose of tnis
        fleteminauon, tfte issue is whether  Gwaroiaft has  "entsrec into binding
        asreecents or contractual cbligatiors, which cannot be cancelled or
        Bodified without substantial loss to the owner or operator to undertake
        a prograo of construction of the source to be ccp.pl e ted within a
        reasonable tiise."  The crucial elements are that  there- be a contractual
        obligation and a contract that cannot be cancelled or modified without
        substantial loss.  Contract law must answer the first and EPA 101
        guideline must answer the second.

        item 4, 5, and 6 relate to on-site  construction. The contract  for
        on-site construction was not sicned  until  Septecbcr 13,  1279, with
        Ketric Construction*  The three listad itenis are  not  sufficient to
        deaonstrate a continuous program cf  on-site construction or ccntractcc
        on-site construction, nor has Guardian claicao this as  the bas:s  for
        coanence&ent of construction.

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Guardian's claim of grandfather-ing is based on having, in the words
of the Ninth Circuit, "contracted for construction net amounting to a
continuous program of on-site construction, but which nevertheless
irrevocably cocsritted the source to a specific site."  Guercian is
emphasizing the financial coffcritiscnt ana less to tne cospany if the
Guardian Is saying that we should consider all the work it did before
letting contracts as evidence of its financial ccwr.itKent.  Apparently
it 1s true that the engineering staff completed cetailce plans for
the Corslcana site before letting contracts.  However, we have rejected
this factor 1n jnaking cur determination.  There are no contracts
involved so there are no legs! obi 1 cat-tons thst cart be cited as consiit-
aents*  Allowing considerations of in-house work in this case irould
open the door to companies claiming sow type of in-house work evidenced
a financial coRSBitcent-  Host importantly vie believe we are bound by
the statutory definition «hich nay, unfortunately, work against a
coopany like Guardian that does a great ceol of preparatory in-house
work prior to entering into contractual agressents.
                        *
We have the same view on Guardian's argument on the relation of this
project to the shut down of another plant.  We believe that we are
bound to consider only the contractual obl$s2tions of the site in
question In making our PSD applicability determination.  If you have
a different view on these two points, we would request formal guidance
on how these factors should be considered.

Turning, to the contractual obi 1 gat ions,* we must decide if the company
would suffer substantial loss based on a ratio of unavoidable losses
to total project cost,  tfe assuse that all the engineering contracts
can be counted In the contractual ccnrritments category when computing
the ratio of unavoidable losses to total project cost.  These dales
total $250,000.  Using  a total project cost of $51,000,000, «e calculitj
that these contractual  obligations for construction of the plant
constitutes  .586S of the project's cost and conclude that this sum
1s not substantial.

Under the court-* s analysis  in the Montana Porer Company case, it
appears that a cospany oust 
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This leads us to Guardian's daira that on February 16t 1979, it con-
tracted with Toledo for  construction of the slass Halting furnace.
The total cost  as  reflected In the purchase orcer of October 25,
1979, is $11,000,000,  This ar.ount v.-ould clearly demonstrate that
(auardian had irrevocably ccasritted to 2 specific site if the necessary
elements are met by this agreement.

Is the letter of February 16, 1979, from Guardian to Toledo a binding
agreteent or contractual obligation?  At this time, a year latsr,
both parties are claiming there was an agreement.

The elements in question here are certainty of obligations and of
pries or compensation.   A contract must be reasonably certain ss to
the obligations of the  parties.  Concerninq the' design of the furnace,
it is clear that the  design ts not finalized.  Previous discussions
are cited as having taken place on the design*  Khile there is a
question on the certainty cf the design requirements at this tise,
giving Suardiaa the benefit of interpretation, it is possible that
Guardian could  show from the discussions having taken place tiist the
design was reasonably certain.

The crucial point  here  1s lack of certainty of price compensation.
The letter states  that  Guardian has taken under considerable informa-
tion concerning fees  but there is no  indication of an agreement on
price.   In fact there is the explicit statement following the discussion
of the fees that Guardian "will finalize the contract details at a
later data."  Clearly the contract details will include costs.  Guardian
has ^reatly eaqihastzejl  the individuality of design of each- of its
glass plants*   The furance is by Guardian's own argirr.ent not a standard
off-the-shelf iteou   Price then oust  be  somewhat  individual for each
furnace and cannot be taken as a foregone conclusion or agreement.

Price or corapensation is an essential ingredient  and must be definite
and certain  or  capable of being ascertained from  the contract itself.
As a  general rule, an agreement which does not specify the price or
any s»thod for determining it, but which leaves the price for future
determination and agreement of the parties,  is not binding.  (17 fit.
      2d p. 423. }
 Where a party is attempting to recover for work performance where
 price is not mentioned, a court will invoke the standard of reasonable
 ness', and the fair value of the services or property is  recoverable.
 Even if thert is not a contract, a court will impose a constructive
 contract to prevent unjust enrichment.  We are not in such a  situation
 so the concerns are very different.  Here the burden is  on Guarcien
 to demonstrate that all the requisites of a binding agreement have
 been fulfilled.

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                                                                             '•O
Where the material tenas and conditions of a contract are not  ascertain-
able and the negotiations have not reached the point where the agreement
53yes the parties an absolute r-icht without further necotiationst  no
enforceable contract is crested." (17 C.J.5. p. £96 note 1.)   To be
final, the acreenent roust extend to all the tenss which the parties
intend to introduce and raaterial terms cannot be left for future
settlesent.  (17 C.J.S. p. 627.)  Sxisply put, where an essential
decent is left for future agreement, there is no contract.

Even considering the neogi tat ions between Suerdien and Toledo, we
cannot conduce that there xas a meeting of the Rinds on prices*
Therefore, the letter  fails to'fulfill the requirepents of a binding
agreement*

If "we assuae for the safce of arguccnt that the February 16 letter  is
a contract, what  is it a contract for?  The only authorization is  to
proceed with the  6esi.cn of the furnace.  This contrasts with the
purchase order of October 25, 1979, that authorized Toledo to  "cesign
and install complete and reacy for operation" the furnace.  We do
not believe that  this  letter could be construed as doing rr,ore  than
authorizing the design of the furnace.  There is just no basis for
including  the  whole of the purchase order into the February 16,
letter.

€1ven the-  United authorization  of the February 15 letter, what would
the loss to Gurdian be if Guardian had cancelled whatever agreement
1t had Kith Toledo on  Karch IS,  1575.  Certainly not $!!aGCO>000-
Even in Toledo's  letter of  February 21, 12£0, which obviously was
written at Guardians  request, Toledo stated that it undertook the
necessary studies., cost esticates and preliminary engineering •prior
to the purchase  order in reliance upon Guardian's ccnr,itr.ent.   These
actions taken by Toledo were  limited in nature and did not encompass
the scope  ot  the purchase order. OR Karch  IS, 1579, Guardian would
have been  liable for  only the costs Toledo  incurred relating to assign
work for that one month.   These  costs clearly would not  approach
several million  Collars that  would be necessary to demonstrate the
substantial  loss test  had been met.

V.'s believe that  Guardian did  not have  a contractual csiiget:on for
the furnace which is  the oajor piece  of equi&neni at the plant until
Octcter  25,  1S7S.  Even if there were  a contract bascc  on the  February
16, 1979  letter, we believe th&t it uould not cr.ablt:  Guardian to
Beet the  irrevocable cccn-.itr.ent  test  because  of the  limited authorization.
Therefore, we conclude that Gurdian  old not conr.ar.ce  construction by
Karch  19,  1S7S, and is subject to review  uncsr the  PSd  regulations-

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K5PS Regulations

The NSPS detersnnatioR 1s SMiewhat easier.   The questions to
ere sfeen did the continuous on-site construction becin anc ivhen  was
the contractual obligation entered into for the piece of equipment
regulated.  The glass furnace is the ecfjipsent in question.  For the
reasons given above, we conclude that the earliest ate for the  contract
1s the October 25, 1579, purchase order and for the continuous en-site
construction would be the Ketric contract of September 13, 1975.
Both dates are after the publication of the proposed fiSPS for glass
furnaces.  Therefore, Guardian is subject to the Kew Source Performance
Standards.

He ask your concurrence on these deterrainations.  If Guardian is
subject to ?SO, Guardian 1s in violation of the regulations by beginning
on-site construction without a penr.it.  We Kill publish a Federal
Register Kotice of our dctensination for purposes of a Section 3C7
judicial review end isswe a Notice of Violation to Guarcian.  we
recuest your action as soon as possible.  Delay on our part will
only be detrimental to Guardian.

Enclosure a/s

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1.9    DATE:        April 12,  1979
       SUBJECT:     PSD and NSPS Applicability - PEPCO Didcerson
                    Generating Station Unit *4
       FRCM:        Edward E.  Reich,  Director
                    Division of Stationary Source Enforcement
       TO:          Steve Wasserug, Director
                    Air and Hazardous Materials Division.  Region III
       DISCUSSION:  See PSD/88
       CR:          10.9 [Hard Copy]

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                                                                                1.10
1.10   OKIE:
       SUBJECT:

       FRCM:

       TO:

       DISCUSSION:
       GR:
March 11, 1980
Applicability of Major Source to PSD Review
if Construction Ccranenced after March 19, 1979
Edward E. Reich, Director
Division of Stationary Source Enforc
Charles H. Tisdale, Jr.
King and Spa 1 ding Co.
See PSD/101
10.15 [Bard Copy]

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                   2. PSD



Potential to Emit/Limitations on Capacity to Emit             ^



                                                         §

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                      WASHINGTON. D.C.  204GO
                         2 5 SvfAT 12"?
                         ™*                      OFFICE OF ENFORCEMENT
MEMORANDUM
Subject:  Submission of State Air Permits
          as SIP Revisions

From:     Richard G. Rhoads , Director x'<£.' V^xr-?£^J-
          Control Programs Development Division
          Edward E. Reich, Director      *^.L^,(L_ T~ /^•—' w
          Division of Stationary Source  Enforcement

To:       Director, Air and Hazardous Materials Division
          Regions I-X
     A question has been raised concerning  the  need  for
States to submit construction and operating air permits  as
revisions to State implementation plans  (SI?).   Of particular
concern is1 the Federal enforceability of State-issued air
permits thar have not been  incorporated  individually within
a SIP by means of an EPA approval through rulemaking.

     Federal.enforcement of construction permits issued
under procedures complying with the requirements of
40 CFR 51.18 (new source review) is provided in
40 CFR 52.02(d) which reads,  in part, as follows:

          ...all permit conditions or permit denials
          issued pursuant to  approved or promulgated
          regulations for the review of  new or  modi-
          fied stationary or  indirect sources,  are
          enforceable by the Administrator...in
          accordance with...assigned responsi-
          bilities under the  plan.

Thus, State  construction permits which have beer, issued
in accordance with SI? procedures approved  cy E?A as
satisfying 40 CFR 51.18", and  which satisfy  tne  interpretative
ruling of'the requirements  of 40 Cr'R 51.18  (the emissio:-.
offset policy), 4~4 Fed. Reg.  3274 et sea.  (January  15,
1979), are enforceable by EPA.  (However,  if emission
reductions to meet Condition  3 of the emission  offset policy

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                         -2-

are obtained from existing sources other  than  those  con-
trolled by the .owner of the proposed new  source, Section
V.B. of the policy provides that these "external" offsets
must be effectuated through a SIP revision.)   The provisions
of 40 CFR 52.02(d) also provide for EPA enforcement  of
prevention of significant deterioration construction permits
which have been issued by States under arocedures comolying
with 40 CFR 52.21.

     The conditions upon construction contained  in these
permits which are needed to meet federal  requirements
(e.g., the source must achieve the lowest achievable emission
rate, or operate best available control technology)  have
continuing application to a source built  under the permit.
Any State limitations upon the effective  duration of a State
'construction permit is deemed to effect only the authorization
to construct under the permit.  Once a source  is actually
built, it must continue to meet the conditions imposed upon
its construction unless they are modified by a federally
approved SI? revision.

     Operating permits present some special problems.
Since State procedures for the issuance of operating permits
to new sources are not required under 40  CFR 51.18 or
40 CFR 52.2*, State new source operating  permits are not
federally enforceable-under 40 CFR 52.02[d).   Of course, to
the extent the behavior required in new source operating
permits is consistent with the behavior required in  the SIP
(including any previously issued construction  permit enforce-
able by reason of 40 CFR 52.02(d)), EPA can enforce  the
behavioral requirement on the basis o£ noncompliance with
the SIP.  In addition, EPA can enforce, on the basis of
noncompliance with the SIP, behavioral requirements  contained
in opera tiny permits for existing sources to the extent that
the permit requirements are the same as the SI?  requirements.
"However, if the provisions of an operating permit differ
from the SIP, the permit must, at the present  time,  be
approved as a SIP revision before it is enforceable  (or
recognized) oy EPA.  If an operating permit condition more
stringent than the SI? is necessary to assure  attainment or
maintenance of a national ambient air quality  standard,
failure to revise the SIP accordingly results  in the SIP
being inadequate.  Therefore, we are advising  each Regional
Office to notify the States of this potential  need to revise
their SIPs.  States wnich do, in fact, need to rev.se t.neir
STPs to incorporate individual operating  permits whicn are
necessary to assure attainment and maintenance of a  national
ambient air quality standard should do so as soon as possible.

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                                                                   2.1
                           -3-

     Sofi'e State- issued operating  permits  may not
require ::. dividual EPA approval  through  ruic~aJ:inc in
to tie considered part of" the SI?.   Section :iO{a)(2)(d)  vS
the Clean Air Act requires SI?s  to  include "a program to
provide for the enforcement of emission  limitations and
regulation of the modification,  construction, .-r-J one. ration
of any stationary source,  including a  permit program ?.z
required in parts C and D  and a  permit or ec'.i .. .'ilen- program
for any major emitting facility..." In  addition, Section
l'72(b}(6) of the Act provides that  SIPs must "require
permits for the construction and  operation of iii-w or ir.ocT.fied
major stationary sources..."  Although no relictions
implementing these sections yet  exist, a  wcr.!.j:*.g group i".
developing a regulatory proposal  requiring GT*%s to contain
an operating permit program (or  its- equivalent) and estab-
lishing the standards for  EPA approval of such a program.
The -issue of the- federal  enforceabil'ity  of St&ts-issucd
operating permits will be  addressed by these regulations.
In the interim, States are encouraged  to  suc._it permits as
SIP revisions 'as appropriate.
cc:  Director, Enforcement Division
     Regions I-X

     Michael Janes, OGC

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                     UNITED STATES ENVIRONMENTAL PROTECTION AGi  2.3  (PARTIALLY OUTDATED1
SUBJECT    Applicability Detenni nation for PSD - Hot Mix  Asphalt  Operations
  FROM    Howard Bergman, Director
          Enforcement Division

    T0    Ed Reich
          Division Director
          Stationary" Source Enforcement (EN 341)
          E.P.A.
          401  M. St.  SW
          Washington, D.C. 20460
          This  is  to confirm a  telephone conversation  between  Libby
          Scopino  of your staff and Dennis  Isaacs  of our  Special
          Projects Section on August 9,  1978.   It  is our  understanding
          that  potential  emissions  from  a new  source should  be calculated
          using the number of hours it is allowed  to operate if the
          limitation on operating hours  is  a provision of a  fully  approv-
          able  SIP new source permit.  We are  now  implementing this  decision
          in our determinations of  PSD applicability,  please contact Carl
          Edlund if we misunderstood.
P»
      IJJ0.4  Be, :.74i

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         'ED 5TA7E5 £N . -RONMZNTAL PROTECTION AGENCY

                    V.ASnINGTCN. D C  20-5D
                    18 MAY 1S7S
                                              Orr-rr
Mr. Jerry L. Phillips
Environmental Specialist
Sums & McDonnell
P.O. Box 173
Kansas City, Missouri  64141

Dear Mr. Phillips:

     Mr. Barber has asked  that  I respond  to  your  letter  of
March 1, 1979, concerning  the applicability  of  the  PSD
regulations to power plants  that are  certified  by DOE  as
"peakload power plants"; the  tern  "peakload  power plant"
being defined in the Power Plant and  Industrial  Fuel Use Act
as "a power plant which, over any  12  calendar month period,
generates electricity not  in  excess of  the power  plant's
design capacity multiplied by 1,500 hours".   In  your letter
you ask whether for PSD purposes the  potential  emission  rate
of such a plant may be calculated  based on a maximum of  1,500
hours of operation per year.

     The PSD regulations state  in  §52.21(b)(3)  that the
annual potential emissions of a source  "shall be  based  on its
maximum annual rated capacity unless  the  source  is  subject  to
enforceable permit conditions which limit the annual hours  of
operation".  See 43 FR 26404, June 19,  1978. In tlie absence
of an enforceable limitation  on hours of  operation  we  would
normally base the potential  emission  rate of a  source  on
8,760 hours of operation per  year  (24 hours/cay  x 365
days/year).

     At issue in this case is the  question of whether  a
combustion turbine certified  by DOE as  a  "peakload  power
plant" under the Power Plant  and Industrial  Fuel Use Act of
1978 is "subject to enforceable permit  conditions whicr.  limit
the annual hours of operation".  In order to qualify  as  an
"enforceable permit condition"  for purposes  of  PSD, operating
limitations would have to  be  enforceable  by  EPA.  The  purpose
of the provision whicn allows potential emissions to be
limited by operating limitations is to  exclude  from PSD
coverage those sources which, although  capable  of e-nitring

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pollutants in excess of the PSO cutoff levels, are effec-
tively prevented from doing so.  In order to carry cjt our
responsibility of protecting the PSD air quality  increments,
EPA must require that any operating limitations wnich serve
to exempt a source from PSD, be enforceable by EPA.

      I would suggest that the owner/operator of  the proposed
combustion turbine ask the appropriate State Air  Pcllatior.
Control Agency to incorporate, as part of the State permit, a
limitation on operating hours.  The State permit  would be
enforceable by EPA, if issued under the State Implementation
Plan's new source review requirements (§51.18) and would
serve as the basis for calculating potential emissions for
PSD purposes.

      Certification of the power plant by DOE as  a ?eakload_.
power plant is not, in and of itself, a sufficient basis foV
limiting potential emissions because it does not  constitute
an EPA enforceable requirement.

      Should you have any further questions on this issue,
please contact Libby Scopino at (202) 755-2564.

                              Sincerely yours,
                              Edward E. Reich, Director
                              Division of Stationary
                                Source Enforcement
cc:   Richard Rhoads, CPDD
      Mike Trutna, CPDD
      Peter Wyckoff, OGC
      Dave Joseph, Region vm
      waiter Barber, OAQPS

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                                                              2.10
                           MAR 2 5 1950
                                                      Office of
                                                     Enforcement
FU2JECT:

FFCiX:

TO.
                  PSr  Applicability

                  Director,  Division  of  Stationary  Source  Enforcement

                  Stephen A.  Dvorkin,  Chief
                  General Enforcement Branch - Region  2
      This  is  in  response  to  your memo  dated  January 7,  1960,
concerning the enforceability of a  pens it  issued  by the New York
City  Department  of  Air  Resources (NYC  CAP.).   Specifically,  you
asked whether a  UYC DAK permit which contains an  annual licit en
the airount of fuel  combusted by two diesel-fired  co-generation
units  can be used  to  licit  the units'  potential  to emit.   The
existing PSD  regulations  allow a source's  annual, potential  to eir.it
to be limited by "enforceable permit requirements."

      "Enforceable permit  requirements"/  as that-terp is used  in
the PSE definition  of.potential to  emit, was intended  to mean
requirements  that are  enforceable under the  SIP.   Unless a  source
has a SIP  enforceable  requirement limiting it to   100/250 "tons  of
emissions  per year, EPA cannot ensure  that the source  will  not
exceed  the FSD threshold.

      If the I7YC  DAP penr.it was not  issued  under the Sir and is  not
enforceable as part of  the SIP, it  cannot  limit the source's
potential  to  emit for  purposes of PSD  avoidance.,

      I  suggest that your  Division issue a  fcrnal  applicability
determination which reflects the above paragraphs.

      Libby Scopino  of  isy  staff has  communicated this response tc
Ctu Roth by telephone.  If you wish to discuss this further,
plfcase  call Libby at 755-2564.
SYU80L


SUflM,


3ATE
  S^-^l
 b> ••• •• ••••*•••

*&iig$M
                   m^ . .^ . M •••••• .•••••

                   W&U$L&
                                     />/
                                               /zv/s*
                   c?rr.
                                                           OFFICIAL ?!U£

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2.11   DATE:         June 9, 1980
       SUBJECT:     PSD Applicability:  Asphalt Concrete Plants
       FROM:         Edward E.  Reich,  Director
                    Division of Stationary Source Enforcement
       TO:           F.W. Giaccone, Chief
                    Air Facilities Branch, Region I!
       DISCUSSION:  See PSD/111
       CR:           5.7 [Hard Copy]

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                                                                2.12
               UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                JUL  7 1930
                                                   Office of
                                                  Enforcement
HEMGRAHDUH

SUBJECT:   PSD Applicability:  Industrial Scrap Processing Company

TROK:      Director
           Division of Stationary Source Enforcement

TC:        Samuel P.  Moulthrop,  Acting Chief
           General Enforcement Branch, Region II

     This  is  in response to your memo of May 19, 1280, in which you
requested  guidance on the applicability of PSD regulations to an"
automobile shredding plant in Kev; York- City.

     According to your neir.o, the plant in question has four diesel
engines, whose potential to eip.it,  absent any enforceable permit
conditions, exceeds  250 tons/year of CO and ITOX.  Two of the
engines generate electricity for the entire plant and two engines
directly drive the shredder.  In order to avoid PSD review, by
reducing the  source's potential to emit,  the company would like to
limit the  hours of operation of the shredder with a bindinc permit
condition.

     PSD applicability under the January 30, I960 stav is deter-
mined by a source's  potential to er.it under both the September 5
1975 proposed PSD regulations and the June 1?,  197E regulations.

     The September 5,  1979 proposed PSD regulations co net provide
for limited hours of operation  when determining a source's poten-
tial to emit.   Under the proposal,  potential to err it is based on
the capability at maximum design capacity to emit a pollutant after
the application of air pollution control  equipment.  Since the
source's emissions are uncontrolled,  applicability will depend en
any limitations which can be imposed  under the June 19, 1978 PSD
regulations.

     The June 15,  1976 PSD regulations allow for potential to er.it
to include limitations on hours of operation but net the use of air
pollution  control  equipment.
           — '      '  "^      I         !          '         j         "
                              	vi'T^;	l	T	T-
                                                             OFP1CUL ?'•_=:

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     If the  autoracbile  shredcinr.  plant has the potential to er.it
25C tens/year  or rccre of  emissions,  permit conditions liritina
hours of operation  of the shredder  ir»ay be used to avoid PCT review.
These permit conditions nust  be  federally enforces!:le,  \:hich would
require a SIF  revision, or inclusion within a cemit i?sueti under
provisions of  Part  El.lc  of the  SIF.

     To specifically answer your  questions, a binding rvsrr.it
condition limiting  the hours  cf  operation could  be placec": on the
shredder.  This would,  in effect,  limit the operation cf the two
diesel engines which drive the shredder.   Itowever, limited hours of
operation of the shredder would  not provide an enforceable
limitation on  the diesel  engines  which provide electricity for the
entire plant.  These engines  can  be operated independently frcir the
shredder and could  be used for purposes other than the actual
shredding process*

     If limited hours of  operation  are placed on the shredder, the
source's potential  to emit would  include  the mazinxss design capa-
city cf the  two engines used  for plant electricity (without hour
limitations) and the design capacity of the engines  which drive the
shredder, including any federally enforceable conditions which
lir.it the hours of  operation.

     If you  have any questions regarding this determination, please
contact Janet  LittleJohn  cf my staff at 755-2SC4.
                                Edward E. Peich
cc:  Jim V.'eigold (CACFC)
     Peter  Wyckoff (OCC)

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                 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY            ?
                                                                       - • it

                               RIG:::: ::

  OATE  -HAf I 3 TS80

--SJECT  Request  for Guidance on Application of PSD Regulations


  PROM  Samuel P. Moulthrop, Acting Chief
        General  Enforcement Branch

    TO  Edward S. Reich, Esc,  (EN 341)
        Director, Stationary Source Enforcement
           Division


        The Industrial Scrap Processing Company constructed a new
        automobile body shredding plant during 1979  in the Bronx,
        New York, without  first applying  for or obtaining  a PSD
        permit;  the company also failed to obtain the required
        operating permit from  the State of Sew York.  Region II has
        initiated enforcement  actions against the company  for several
        violations, and is presently involved in settlement
        negotiations.  The company expects to apply  for and receive
        its New  York State Certificate to Operate this summer; it
        will  also apply for a  PSD permit  if one is necessary.

        This memorandum seeks  your guidance on the application of the
        PSD regulations with particular respect to one issue which
        has been raised.   The-  auto shredder is directly driven by
        two diesel engines.  Two additional' diesel engines are used
        to generate all the electricity used at the  plant  (the
        facility apparently does not draw any power  from Consolidated
        Edison).  Auto shredding is the only activity at the plant.
        The company does not expect to use the shredder constantly.

        Potential emissions from the four diesel engines exceed 250
        tons per year of Carbon Monoxide  and NOx.  The company would
        be willing to accept a binding permit condition limiting its
        annual hours of operation so as to reduce the potential emissions
        to below 250 tons.  Our question  involves the enforceability
        of such  permit conditions, and their acceptability for the
        purpose  of limiting potential emissions for  ?5D review.

        As you will recall, New York State does nor  require rhac. diesel
        engines  be covered by  operating permits; New York  City does.
        Only  the State's permitting authority is a portion of"the
        New York SIP.  The City's operating permits  covering the four
        diesel engines, then,  will not be enforceable by EPA, and would
        not alone be satisfactory to limit the calculation of potential
        emissions.
 "A Form 1320-6 (R««. ].7«)

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The shredder itself, however, must hold a State Certificate to
Operate, and a limitation on operating hours could be included
in that permit.  Our question is whether such a condition may
be viewed as limiting the operation of the diesel engines also.
It would appear that"this question can be broken dowr. into two
further questions:

     (a)  Would an enforceable limit on operating hours
          applicable to the shredder itself be an enforce-
          able limit on the operating hours of the two
          diesel engines which provide direct power to
          the shredding machine?

     (b)  Would the limit on the shredder be an enforce-
          able limit on the operating hours of the two
          additional diesel engineelectric generators,
          since their sole use is supplying electricity
          to the plant, and the sole use of the plant is
          shredding cars?

It may be logical to answer Question (a) in the affirmative,
since the two direct drive engines have no function other than
to operate the shredder.  Question (b)  is more difficult;
although the second pair of engines is not likely to be used
unless the shredder is also being used, there is nothing to
prevent the company from operating them independently.

I would appreciate having your response as soon as possible so
that we can advise the company as to our interpretation of the
regulations.  If you need any further information please
contact Walter Mugdan, Esq. at (FTS)  264-4434.

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SUBJECT:
  PROM:
                                                                                2.13
               UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                 Office of Air Quality Planning and Standards
                 Research Triangle Park, North Carolina  27711
  DATE:  AU6  22  1980
                G. Rhoads, Director
        Control Programs Development^

        Thomas W. Devine, Director
        Air and Hazardous Materials Division, Region IV

             This is in response to your memorandum of July 15, 1980 rsoi
        guidance on using permit conditions to define a source's _
         _ specifically, you cited a gasoline bulk terminal fnat nad
        requested a change in their State operating permit that would limit
        gasoline throughput such that the terminal's VOC emissions would remain
        under 100 tons per year (TPY).   The purpose of this request by the bulk
        terminal was to obvia-te the need for RACT controls at their facility.

             Prior CPOO guidance has provided that urban and rural nonattainment
        areas not needing an extension  until 1987 (by virtue of a demonstration
        of attainment by 1982) may have a source cutoff size of 100 tons per
        year.  The use of permit modification to comply with the TOO TPY cutoff
        was not addressed.

             The recently published PSO regulations (PR 52676,  dated
        August 7,  1980) include as part of the definition of "potential to
        emit":  "any physical or operational limitation on the  capacity of the
        source to  emit a pollutant, including air pollution control  equipment
        and restriction on  hours of operation or on the type or amount of
        material  combusted,  stored, or  processed may be treated as part of its
        design only if the  limitation or the effect it would have on emissions
        is  Federally enforceable."

             Source permits  with conditions  whi:h are duly adopted by the  Stats
        and submitted and then approved by EPA is part of the SIP are Federally
        enforceable.   Therefore, it would  appear that a restriction  or condition
        on  a State operating permit that would limit gasoline throughput sucn
        that the terminal's  emission would remain under 100 TPY could be accept-
        able.   However, it  is pointed out  that in determining if a bulk gasoline
        terminal is  a 100 TPY source, the  gasoline throughput of the terminal  as
        well  as  the  emissions from gasoline  storage tanks  at the facility  must
        be  added together.   (See attached  memorandum dated August 8,  1980  from
        G.  T.  Helms,  Chief,  CPOB to John Hanisch,  Mobile Source Emissions  Section,

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Region I.)  Care should be taken in determining the extent of control
of storage facilities as there may be many tanks under one person's
control at a large pipeline tank farm.

     Determination of a daily emissions limit or corresponding gasoline
throughput, commensurate with the <100 TPY level, must be made for
inclusion in the permit.  Thus, the source will be restricted from
emitting at a 100* TPY rate during the ozone season (summer) while
complying with the annual restriction of <100 TPY.  In addition, as a
permit condition, provision must be made for record keeping and
periodically reporting gasoline throughput.  Long-term averages of
gasoline throughput would not be acceptable.

     Also, in that the original emission limit for this source is
incorporated in the approved SIP for Mecklenburg County, the State must'
submit a revised attainment demonstration ensuring that RFP is maintained
and that attainment by December 31, 1982 is achieved.   This would be
especially Important if numerous sources were requesting changes in
their operating permits.

     In summary, in determining 100 tons per year sources, operating
restrictions on permits may be used under certain conditions to define
potential  to emit.  Permits must specify proper record, keeping, reporting
requirements, and any other conditions deemed necessary to ensure
compliance with the operating restrictions.

     Please contact Ton Helms (FTS 629-5226) or Bill Polglase
(FTS 629-5251)  should you have any questions.

Attachment

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                                                                                   •? • •
       DATE:
                         ieircn Tri'angie'Parx, .IcrtrTCi'roiTni'277'"


                  8   1960
           :  Reouest  for Conf-irmation of the Definition of a "00-Ton Source
             as  Applied to  Controls in tne Gasoline Storage and Marketing Cnain
       FROM:  3.  7.  Helms,  Chief
             Control  Programs  Ooerations  Sranch   (MD-15)
         TO:  John L.  Hani sen
             Mooile Source Emissions Section,  Region  I

                 This  is  in  response to  your  memorandum  of May  22,  1980 requesting
             confirmation  of  the definition  of a  100-ton  source  as  aoplied to controls
             in  the gasoline  storage-and  marketing  chain.

                 As  stated in previous determinations  of 100  tons/year sources  (see
             memorandum dated  Septemoer 7,  1978 from  Richard G.  Rhoads  to Director,
             Air and  Hazardous Materials  Division,  Regions  I-X),  the potential
             emission-s  from all  similar or  connected  CTG  category sources on a
             facility-wide basis should be  added  together to determine  if CTG control
             is  required.   In  the case of bulk gasoline terminals,  this would ae
             based  on potential  emissions from tank trucks  (using the aoprooriate
             emission factor  for .splash or  submerged  fill  and  the loading rack
             throughput) as well as  potential  emissions from storage tanks if they
             are located on contiguous or adjacent  properties  wnicn  are owned or
             ooerated by the  same person  (or by persons uncer  common control).

                 In  accordance with the  above, the responses  to  your questions  are:
             (1) tank truck potential  emissions during  loading operations should ce
             calculated as part of the potential  emissions  at  gasoline  loacing
             terminals; (2) compliance with  the storage tank CTSs (fixed-rocf'tanxs
             and floating-roof tanks)  are required  at an-y terminal wnicn has oeen
             determined to be  a 100-ton/year source and tne potential emissions  from
             these  tanks should have been considered  when tnis determination was maoe
             if  the tanks  are  located on  contiguous or  adjacent  prooerties wnicn are
             owned  or operated oy the same  person (or persons  under  common control);
             ir.d (2)  s  tank truck certification program s-s  a retirement cr.'.y f.r
             those  uraan areas requesting an extension  aeycnc  1S82  to attain" tne
             ozone  standard;  however, the bul< terminal CTG requires loading into
             "essentially  leakless"  tank  trucks and tne States must  incluce'a test
             method in  tneir  regulations  for certifying that tank trucks are
             essentially leakless irregardless of an  extension aeyona 1982.

                 As  indicated above, Item  3 is in" agreement with your  uncerstancinc,
             out only "essentially leakless" trucks may ce loaded at bulk gasoline
-»*m 13:0.4 ,-R

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terminals if trie bulk terminals r"e greater than 'OC tens/year sources.
(See memoranaum June 15, 1980 -"om Ricnara 3.  ^hoacs,  -irac'cr, C?CD to
Jacx Divita, Chief, Air Programs aranc.i, .Region VI.;

     It is hooed that this will clarify the reauirensn-s necessary for
the determination if a Bulk gasoline terminal  is a "GG-ton/year source.
Please contact Bill Pol glass (FTS 529-5251) or Tom Milliams*(rT3 52S-5225)
should you have any questions.

cc:  Chief, Air Branch, Regions I-X
     ?eta Hagerty, Region I
     Paul Truchan, Region II
     Neil Swanson, Region III
     Doug Cook, Region IV
     Dick Dal ton, Region V
     'Donna Ascenzi, Region VI
     3avid Doyle, Region '/IL
     Bill Bernarao, Region VIII
     Tom Rarick, Region IX
     Ken Lepic, Region X

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                   UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                  NOV25I980

        Mr.  Daniel J. Dent
        Project Engineer
        Bechtel, Inc.
        15740 Shady Grove Road
        Gaithersburg, Maryland  20760

        Dear Xr. Dent:

             This is in response to your letter of October  1,  1980,  in
        which your requested guidance or. PSD applicability  for
        refuse- to— energy facilities.  Specifically, you  requested
        information on how the daily firing rate of such a "facility  should
        be determined, c:  --.:<.:

             To determine if the facility in question  is capable of
        charging 250 tons of refuse per day (and thus  falling  into the IOC
        ton  major source category for PSD applicability) the  firing   rate
        should be based on the solids content of the municipal waste  and
        tfc< dry weight of the papermill sludge.  These parameters are used
        in order to maintain consistency with applicability and source
        testing under the new source performance standards" for incinerators
        and  sewage treatment plants (See 40 CFR 60, SuLparts  C and C).

             If you have any questions regarding this -determination,  please
        contact Janet Little John of my staff at 755-2564.

                                              Sincerely yours,
                                               Edward C. Peich,  Director
                                               Division cf  Stationary
                                                 Source Enforcement
             iHN-iui J          i         i
            •I™	-*-*O	.•	f	
                                    	I.


's   X	i'uiiV\So"'!yv.7>"v^i	f
Form 1320.1 (12-70)

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                                                                          2.14
                                                   Bechte!  InccrscTated
                                                   15740 Shaay Grove Road
                                                   Gaithersourg. Maryland 20750
                                                   301-258-3000

                                                   October 7, 1980

                                                   NM-8
 Mr.  Edward Rice,  Director
 Division of-'S'tationary Source  Enforcement
 Environmental Protection Agency
 401  M Street, S.U.
 Washington,  D.  C.   20460

 Dear Mr. Rice:

                Subject:   Bechtel Job 14487
                          New Milford Project
                          PSD Regulations -
                          Qualifying Definition of Sludge

 We are presently  engaged in a  feasibility study for a refuse-to-energy
 facility to  be located la the  State of Connecticut with capabilities of
 steam and/or electricity production.  The facility will utilize modular in-
 cinerators to co- fire  both municipal solid waste (MSW) and papermill sludge.
 The  papermill sludge will have a solids content of approximately 35 percent,
 and  the moisture  content of the MSW will be in the range of 20 to 25 percent.

 PSD  regulations at  present do  not define sludge for purposes of co-disposal,
 and  we are therefore not sure  whether the wet or dry weight of the sludge should
 be used In arriving at the total firing rate at the facility.  That is, .In the
 250  tons/day cut  off limit that determines whether an incinerator is a major
 source, should the  dry weight  of the co-fired sludge be used in reckoning
 that component of the  mixed waste.

 Please call  me if there  are any questions concerning this request.  We would
 appreciate your written  response as soon as possible to enable us to proceed
 with the sizing of  this  facility.
                                        Very truly yours,
                                        D. J. Dent
                                        Project Engineer
DJD:FR:jd

cc:  W. R. Elliott
     F. S. Roberts

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                                                                     2.15
2.15
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
       CR:
March 31, 1981
Summary of PSD Policy Determinations
Thomas W. Devine
Air and Hazardous Materials, Division, Region IV
All State/Local Directors
Region IV
Summary of PSD policy determinations during the period
from November 13, 1980 to January 12, 1981:
   1)  Treatment of fugitive emissions with regard to
       PSD applicability.
   2)  A proposed physical change must, by itself,
       result in a net increase greater than de minimus
       in order to be subject to PSD (see PSD/120).
   3)  Allowable emissions can be presumed to represent
       actual emissions for new sources and, therefore,
       an increase in production at the PSD source is
       not an increase in actual emissions.  (Also see
       PSD/120).
   4)  Example 3 above occurs at an existing source
       which did not have a new source construction
       permit under the SIP (see PSD/120).
   5)  An iron foundry is considered to be one of the
       28 PSD categories (i.e., a secondary metal
       production plant) if it uses scrap metal  to
       produce iron, even if the metal  is poured into
       molds.
   6)  Applicability of offset requirements from new
       source with a SIP construction permit whose
       permit conditions did not prohibit subsequent
       i ncreases.
   7)  A whislcey distillery is not considered to be  one
       of the 28 PSD categories, specifically a chemical
       process plant.  A chemical process plant is any
       establishment in Major Group 28 of the SIC Code.
       Beverage distilleries are in Major Group 20.
   8)  A proposed increase in emissions is not subject
       to PSD unless the triggering increase is of the
       same pollutant as the one for which a significant
       increase results.  (Also see PSD/120).
   9)  The 50 ton per year exemption under 40 CFR
       52.21(i)(7) is pollutant specific.
  10)  Operating permits are not Federally enforceable;
       however, the State can impart Federally enforceable
       conditions to a construction permit issued for
       the source in accordance with the New Source Review
       procedures of the SIP at the time of issuance.
3.16 [Hard Copy]; 4.16; 5.9; 10.22; 12.9; 13.5

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                                                                     2.16
2.16   DATE:         April  1,  1981
       SUBJECT:      PSD Questions
       FROM:         Edward E. Reich,  Director
                    Division  of Stationary Source Enforcement
       TO:           Merrill  S. Hohman,  Director
                    Air &  Hazardous Materials Division,  Region  I
       DISCUSSION:  See PSD/124
       CR:           3.17 [Hard Copy];  13.6

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                    UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
       SUEJECT;   P5D Determination: Sun Oil Company and  the  Definition
                 of rajor ^edification

       FRC2!:      Director* Division of Stationary Source Enforcement

       TO:        Julio Morales-Sanchez, Director,
                 Enforcement Division Pegion II

            This IB in response to your nemo dated April 21*  1981,
       concerning the Eun Oil Company in Yabucou. Puerto Pico and  the
       definition of major modification as that tern is  used  in  the
       context of the Prevention of Significant Petcrioration (PSD)
       regulations.  The source in question received a perr.it to
       construct in 1974, which limited the* boiler to 30C million  Btu/hr
       heat  input.  The source nov propor.es tc increase  the  boiler's heat
       input to 475 rillion Btu/hr and clair an exception fror PSD review
       under 40 CFR 52.2Kb) (iii) (f).  Specifically you  seek
       clarification of this exception in ?52.21(b)(2)(iii) (f) which
       provides that an increase in the hours of operation  or in the
       production rate eh all not constitute a physical change or chanae
       in the method of operation unless such change would  be prohibit d
       under any federally enforceable permit condition  which wae
       established after January 6, 1S75. pursuant to 4f CFF.  52.21 or
       under regulations approved pursuant to 40 CFP 51.18  or 40 CFF
       51.24.

            This exclusion is interpreted to wean that any  major sourer
       seeking tc increase its hours of operation or its production  ra e
       shall  be allowed to do so without the need of a PSD  pern it
       provided that such source was not licited by an enforceable perr.it
       condition which was established after January 6,  1975   In  the
       instant case at band, this would mean that the boiler  could
       increase its rate of operation from 300 MK Etu/hr heat input  tc
       475 KM Ptu/hr without the need for a PSD penr.it.

            The preamble to the August 7, 19FO PSD regulations states  at
       page  52704:


                      "It (the exclusion) would exclude
                      any increase in hours or rate
                      of" operation, ar long as thr
                      increase would not require a change
                      in any preconstructdon perait
                      condition established under the SI?
                      (including PST permits) after t.w«
     X    M&i /	
                 	:                                          OFFICIAL rlLs CCf
SPA Fomi 1320.1 (12-70)

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For  th€  purposes: of PSD t^e relevant date of concern is
January  6,  1575.  This IP the date when E?A initiated its PST
prograr.  and began trackinr. changes in air cuality iirract.  Actior
taken  prior to that time could not have been undertaken with any
prior  knowledge or prejudice toward the PSD recuiremcnts.

     While  it  in true that increase in production and operation
nay  result  in  significant errission increases they are not
obligated  to obtain prior approval under PSD.  This is explained
in the prcanhle also at page 52704.

                •This exclusion stens largely frort
                EPA's decision that the definitions
                of najor "modification" should focus
                on changes in "actual er.lssions."
                While EPA has concluded that as a
                general rule Congress intended any
                significant net increase in such
                eaicsions to undergo PSD or non-
               ' attainment review,  it is also convinced
                that Congress could not have intended
                a corpany to have to get a N£F perr.it
                before it could lawfully change hours
                or rate of operation.  Plainly, such
                e requirement would severely, and unduly
                hanper the ability of any company to
                take advantage of favorable narket
                conditions.""

Although such  chances will not be  rccuired to get PSD approval,
they will consume air quality increment provided the baseline- date
has b*-en established.  Subseouent  applicants should ta?e such
effects  into account.

     This response has been prepared'with the concurrence of OAPPS
and OGC.  Any  questions or comments you have concerning it should
be directed to Janet LittJejohn Farella of my staff.  She can be
reached at  755-2564.
                                       Edward E. Prich
cc: Mike Trutna
    Peter Wyckoff
    Gerald be  Caetano

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                UNITED .TATES ENVIRONMENTAL PROTECTION AGENCY            2.1!

-*-=   APR 2 :  :981

JECT  Clarification of PSD Definition of Ma^or Modification
                                  *r

PROM  Julio Morales-Sanchez,  Directo
     Enforcement  Division     P*%

  ~°  Edward  E.  Reich, Director                    ~ •'""'  "".''" '
     Division  of  Stationary  Source  Enforcement    "     -../ ~
                                                          i

     The  purpose  of this  memorandum is  to  request clarification with
     respect"to the definition of "major modification"  as that  term
     is used in the context  of the  Prevention of Significant
     Deterioration of Air Quality ("PSD")  regulations,  codified at
     40 CFR  §52.21 (45 FR 52676,  August 7,  1980), because a case
     being considered by  the Region II  Office may be  affected by the
     definition of that term.

     "Major  modification" is defined in the PSD regulations as  "any
     physical  change in or change in the method of operation of a
     major stationary source that would result in a significant net
     emissions  increase of any pollutant subject to regulation  under
     the  {Clean Air] Act."  40 CFR  iS2.21(b)(2)(i).   The regulations
     further state:  "A physical change  or  change in the method  of
     operation  shall not  include: ...\'An increase in  the hours  of
     operation  or in the  production rate,  unless such change would
     be prohibited under  anv federally  enforceable permit condition
     which was  established after  January 6, 1975, pursuant to 40 CFR
     52.21 or  under regulations aporoved pursuant to  40 CFR 51.13 or
     40 CFR  51.24."   40 CFR  §52.2l"(b) (2) (iii) (f)  (emphasis added) 7f

     The  situation in question involves a  proposed increase in  an
     existing  boiler's'allowable  capacity.   The original permit to
     construct  was issued by the  State  in  1974 pursuant to the  New
     Source  Review ("NSR") procedures promulgated by  that State and
     approved  by  EPA as part of the SI? on May 31, 1972 pursuant to
     40 CFR  §51.18.   The  construction permit is,  therefore, federally
     enforceable.

     That permit  limited  the boiler in  question to a  capacity of
     300  million  British  thermal  units  per hour ("MMBtu/hour")  heat
     input although the boiler was  rated in excess of 500 MMBtu/hour.
     In December  of 1980  the source applied to the State for a  permit
     to increase  the capacity of  the boiler to 47S- MMBtu/hour;  this
     permit  was issued in February  of 1981.  The source now contends
     that it should be exempt from  PSD  review pursuant  to the defini-
     tion of "major modification" because  its permit  to construct was
     issued  before January 5,  1975.
       (A... 3-761

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The  definition itself  is not clear with respect to whether the
January 6,  1975 date applies only to the regulations codified
at 40  CFR §52.21 or,  in"the alternative, to regulations approved
pursuant to 40 CFR 351.18  and 40  CFR §51.24 in'addition to those
codified at 40 CFR §52.21.

Region II notes that the preamble to the August 7,  1980 PSD
regulations give's some guidance on this issue.   Specifically,
the  preamble states that the phrase "change in  the method of
operation"  does not encompass "any increase in  the hours or
rate of operation of a source, so long as the increase would
require no  change in any preconstruction permit condition es-
tablished after January 6,  1975 under the SIP."  45 FR 52698.
This guidance  would tend to support the interpretation that
the  January 6,  1975 date is intended to apply to all regulations
referenced  in  the definition in question.   This would,  in turn,
support the argument that,  in the instant case, the intended
increase in the rate of operation would not be  subject to PSD
review because the source's §51.18 or preconstruction permit
was  issued  before January  6,  1975.

The  Region,  however, recognizes that there is an argument for
interpreting the January 6,  1975  limitation as  applicable only
to those federally enforceable permit conditions" established after
January 6,  1975  pursuant to 40 CFR §52.21.   In  the  instant case,
this would  lead  to a determination that the source  would be
subject to  PSD1 review.   This  argument can be summarized as follows:

     1.   While  January  6, 1975 is  the effective  date of
         the first PSD  regulations,  it apparently has       ,    ;,/-•"
         no  relevance to  permits issued oursuant to  §51.18.  h*r  •?/< "
         As  the January 6, 1975 date was"not factored into  ~f ,.'«-,'
         the definition of "major  modification"  codified     &f- /,.JL.-/ .
         under  the  June 19,  1978 PSB regulations,  it is          '
         unclear  why it would  be a factor under  the  current
         regulations  (if  such  is indeed the  case).   A case
         can  be made  that a  significant emissions  increase
         at  an emissions unit which  was limited  under a
         federally  enforceable (§51.18  NSR permit) permit
         condition  is comparable to  a  significant  emissions
         increase which results frrm the  addition  of  a new
         emissions  unit at a source.

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     2.  This is a modification of an existing major source
         which would potentially  (a) increase emissions in
         significant amounts,  (b) consume increment, and
         (c) degrade the ambient air quality.

An expeditious reply to this request would be appreciated.  Should
you require additional information relative to this proposal please
contact Mr. Gerald DeGaetano at  (212) 264-4726.

cc:  F. Giaccone,  2AIS-AF
     K. Eng,       2PM-PA
     R. Stein,      2ENF-GE

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                                                                          2. IS
3e«r State/Local yirrrtsr:
> 'te»TJ: 11, l?£i, 1 s*rt yes * sutsary  of
?.i»ci--.r  IV.   Enclose.;! is »n uop'~t.c ^nlc*  snsal'J ?*• a^cci ~.s **e *1riS.  s^ir'iry,
  *                                                 _

{•••"• •• /J3 i -Vfcil-1.
        r
Air i H2i5rf?cus .-teteHalj Division

Enclosure

4AH-AF:PFAFr:je:7/2S/31{511S)
4AH-AF         4AH-AF         *AH
PFAFr          GIBBS

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                                                                           2.18
                 Policy 3r:snJ«:5nc|p-s  .W-zjr-rnr. j>SJ w'
 1. 2/5/iii
   Answer:
                   A Boiler :t a raj or st.:tio*;arv SC'-r^f  ics  seer, s'^at cuwr.
                   fcr 11 /ears.  At t?:c wire of crs shutccftin extansi've
                   efforts vere srsde to *er?s tfcc boiler free  ui»t-ir:cMt1-"s-.
                   0«r1sfl tf.e shut-Jewn psrloo this Oiif.Ttsnsnce !».as cr.ntlr-jjsc.
                   A rscer.t ins|>*ct1"r. '~* t^e ^a.*uf=ctKr»;r  sJ.v.vs  tv.st  very
                   little effort woui-j 5« rsxpjirad ts return  tf.*  tollar to
                                                               r*^-:- to  ^xpir;?.
                                                                s i-.tinn^c to
                           at sr/r^ tisw in ti"S f':turr.  Is  t1:*?
                   service of the ocilsr subject to ?SD?
     SsrssTiy,  a s*ut::c*n of greater t*en i y*,


         asv  if* constcsrsa t&t'oorar*.  If tl.s  s^.itC<:u.o  Is
    tftenc  tccporsiry. a startup •-•caTc *?st ba sucjcct  tc
?S3« T»e "sclc  tsst" 1s u^sttsr tr« snuscctir. Is psrca^ef.!.
in any  c«sc,  tr'.e 1ncress£ vyoclc De c-jnsicsnri  asj ir.cr.-sic
1n actual edssions for «ny future net increase C£l«Ut1cn
and forIncresent consaaptlcn purposes.

Hen» frao Edward Rslch, "Succary cf PSD 3etsrw{nations,"
PSD 117.
2. 2/5/31

   Question:
   Answer:
In th* July *2,  1SSO F^tferal Register. EPA esclarec 7
additional coepounus (in acjciticu to sethyl crtlcrsfora  enc
oethylene cMoHee)  to be of negligible pMtofnec-fcsl
reactlvi^r.  Does  this expand the list cf cc-npcunos wnich
are not considered VOC's for purposes of
Yes.  The complete list cf orcsnic csspouncs net considered
pootoc^talcally  reectlve fcr purpcses of ?5D 1s n

 1.  1,1,1 - trfchloroethane
 2.
 3.
 4.  ethane
 S.
 6.  d1cfe1orod1flueroeet!ierr

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   "eforsncs:
                   7.  ciilorodflucrsnethane
                   8.  tri fJ uorccethase
                  iO.
                  11.

                  Scssc cf tfcese cnapcasus  are snsocsoc for regulation under
                  SS?S.  When th* «S?3  is  proal§at2i, each of ttasc
                  ccepcunds will  £e cc"r! «isrsa  a  ssparats 50 Mutant for ?SO
                  purposes, but *W sit 13 rot  :» ccrsicersfl a VOC.
45
3. 2/10/31

   Question:
    eference:
A F4jer source prcscscs to fcuilc in c no'.iattairas.-.t  *»-2if
£«t tne area is projected tc "» attaiTasr.t (basac  an t^e
npurowc Psr* 0 Si?) te*?ra s-urtup of tn* sca^e.   Is  tnc
sourca «ibjsct to PSD?
                  Bo.   It 1s ftct wfiject to ?SO,  and tne stats is ast
                  requirec to subject  it to Part  D rc«ui recants.  This 1s
                  loophole In tht? rsguUtlons.  £?A has propose c a
                  to eHffinats the locpfcole.
45 HI &124, Januarr 28, 1521
4. 2/15/31

   Question:
   Answer:
The ?S3 baseline air quality 1s hascd en actual  missions
fmt existing sources.  Actual eoisslons ars  ceflned «s  the
average earfsslou rate In tans p«r year.   Hw  coes 2eg1cn IV
interpret tftls 1n establishing short-tcra (24-{iour. j-.K.ft.r)
baseline air quality levels v*en air quality  Bc^Hns is
used?

Baselines far 3-hoqr «nd 24-hour averages should fes s«t
using tne saxlma 3-hour averaee or 24-ncur average
ealsslOR rate of tte existing source, respective'/, which
occurred during the period  over wftlcf! the anneal esrfsslcn
rate was determined,  ror ezaspl«, if a  source's aanuA?
esrtsslon rate 1s tfetersrtnetf ts t>e *30 tens per year 'art
averaging 4CC tons per year In 1973 ana  4cO tors per year
In 1379, t»»e 3-hoor baseline esi'sslen rate woold he the
asx1 eufi 3-hoor avertce Mission rate which occarrec euricc
the period of 1S73 and 1379.

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                                                                             2.18
An aabl-ent rasriltisr *?.& speretrs TOP 1 year I or s.-crtrr
tlss, If representative af Diciest Values) sine tn»n s^;t
       A pro9Q5«i sourca «1sh5S to use tlis c-dta for Its PSD
                  cown.
                      .
                  application.  Ltcept for me tins laps;1, we 3ata is
                  representative cf carraat air cu*H"y -s tr-e prspascc sits,
                  1s of good quality, anc *as sitnarsc esitirrt/ 1n a tine
                  perluo l«ss wan 3 y<»«rs osfor? the source sui,«1ts Us
                  application.  Can !l:s uata ?& ui-:y, ev^n nvi^.i tr,a me
                           ihut
                  As long « all tn* rtata neeccci in ape'n'cation zrz crlirCt
                  s*q-£mti£liy, anc ali ti:e uata ars Cullact^a s-j^ic tia: in
                  the pr^vlsas tr.r«e y«ars, tfce tlartng re««.irecant is
                  s«tls?ied.  For csacpte, suppose a stats acency opb-r^tsc
                  ozone monitor throu^ncut £ particular c;one S3«su«i,
                  tftfr ag«ncy cifiverninss to ce P,pril trroagf. Saptetsoar uf

                  used In a PSD .ippHcatiso swaitt?s in/ tine tefurn A
                  1* l^ii prevlcsd th« ca!^ ara still rc-pressfttatnvc or
                  current ccncitlcns, and all o£:er rsarjlrsscnts ire aet,
                       as quality assurance ana nsjiltvr location.
   Reference:     40 CrS 52.21 (a); 45 FR S2?i:4
6. 5/5/31

   Question:
   Ar.swcr:
A si nor source locates 1n a ?SO area vtter? the b
bee.
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   5/0/31
                  A slncr scurca -,.'<:ic.i  JCtis  isrriss;crw  tf a pollutant in a
                  aajsr aiscunt 1s stiDjecT to i»5D  *s a  new rajor source,
                  ratter than as 2 serf f leaden.  T"*  -ernno concsct is
                  only 1n tlie teflnUion of  sa^ar eociflcaticn, sr.u nc-t in
                  the definition o? p?jor stationary source.  This SSMSS *s
                  Indicate that a srinor scarce  acolac  « cajor emission point
                  cauld not escape ?SO  cy consfccrtns  pp-vioas cecr^ases
                  wlcJ» Cfiuss &« "*:t increase  to ce Toss tnan We sajer
                  source :*r«>o1d.   Is »ls tna  case?
                  	  ror exr.it.p1-j,  suspose  4  rslncr  source
                  had j decrease in actual  sc^ssir>;-!S  in i:»73 of jQ tcy.
                  leaving 150 toy.  in Urii,  2sd  tpy  1s propose to i,c-
                  »c«efi.  If the 50 tpy redicticn ccaVj Lr usea ts offse: t.H.i
                  2SO tpy Increase, the Increase  vcula te only £10 *.?y ar,s
                  the scarce woulrf  escape r«v1*a. The 50 toy acrcsss c£"nL*
                  be used, however, sc tnc «0  tpy increase is su\'".ct to
                         as a *!&* ?ajcr stationary source.
                  40
3. S/5/81

   Question:
   Answer:


   Reference:
An existing scare? 1s eajcr only because Its
epns«1o«is are 12C tons per year.  Tbo ssurca  proposes  ts
acd 60 tons per year of porticulots eslsslsns.   At tne
tlB». the source Is willing ta accept a new,  feceralljf
enforeeAtlc llsUaffon which lowers Its iSj eclsifons  tr-
90 tons per year.  Is the proposed accltian ef  bO  teas pe
year cf partlcnUte subject, ta PS3?

4o.  Since the source *W not be cajar after the  chsnge.
the action 1s not subject to ?S3.

40 ^K S2.21(&)(2H1)
 . SA5/31

   Qaestlcn:
An ei1 sting njer source proposes to Increase esrissicns by
45 tons per year of SOj and 55 tons per year cf MOX.
Can tee SO ton exesptlon uncer 40 CfS 52.21 (4.)(7) :-e  usss
to exenpt SOj free ac&lent analysis, even though the

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    Answer:


    Refereic?:

10. 7/is/ai
    Answer:
                   ;iOx Increase 1s «T~2tar t^n 50 tors oer vsir?  I.i cr.vr
                   wores. past eacn poll at ant Increase Qe lass w»n :y tons
                   per ye«r for *n? pollutant ta qualify?

                   The exs;=?t1on weald net apoi.y.  lac* pollutant Increase
                   nust t»« 1«ss than 50 ts-n? per year tc'-i-re the Sj
                   applies for a^y gcllutant.

                   *a CrR 52.21 {i
                   The ?3y oreacile gives t?is ac5.  The rcyulaticns 51 va
                   1t is 1* us/a?1* annual average,  amcr: is correct?
    Reference:
                      n t^e regulation was pu^Hshsc, 1t vas iocsnt to say
                   25-hcur average.'  ifcacqyirtsrs hes recsr.tly Mciccc *c
                   chs^QB 1-t to an onrjal 'avsragc-, alcn? with ssr» «t::*r
                   chances to tte tafcle.  Since tne published versicn cf
                   rcgulotlcn alresc/ s«/s annual, f.s sines the 
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                                                                2.19

            •JNITID S. A7Z3 ENVIRONMENTAL "ROTSCTICn AGZNCY

                        WASHINGTON. D.C. 20469
                                                        OFFICE OF
                                                   AIR. NOISE AND RADIATION
                              R  28 .9=2
MEMORANDUM
SUBJECT:  Federal Enforceability  under  PSD/-I  /
                                jrl JH-ri^mP^^^
FROM:     Kathleen M. Bennett   ^Jjtfljiiu^'n^
          Assistant Administrafcprirfor Air/  Noise and Radiation
TO:       Directors, Air  & Waste
            Regions I-IV, VI -VIII, X

          Directors, Air  Management Divisions
            Regions V and IX

     This memorandum is prompted by a  request  for  clarification  of
the status of the requirement that to  be  cognizable  under  PSD  for
offset and applicability  purposes, emission limitations  must be
federally enforceable.

     On August 7, 1980, SPA published  amendments to  the  PSD and
non-attainment regulations which included a provision  that
emission limitations must be federally enforceable in  order to be
taken into account for offsets or applicability purposes.  The
amendments went on to define federally enforceable as:

          all limitations and conditions  which are
          enforceable by  the Administrator,  including
          those requirements developed pursuant to
          40 CFR parts 60 and 61, requirements within
          any applicable  State Implementation  Plan,  and
          any permit requirements established  pursuant
          to 40 CFR 52.21 or under regulations approved
          pursuant to 40  CFR 51.18 and 40 CFR  51.24.
          (40 CFR 52. 2Kb) (17))

     Under a petition for reconsideration of the August  7  rules,
which was submitted by several parties, this concept of  federally
enforceable limitations was challenged.   The petitioners
maintained that the requirement of federally enforceable
limitations was unnecessary.

-------
      The Agency decided to reconsider the requirement of federally
 enforceable emission limitations.   In addition to reconsidering
 the issue,  EPA temporarily stayed  the federally enforceacle
 requirements (see Federal Register July 15,  1981).   The stay
 expired on  October 5, 1381 ana tne Administrator declined an
 extension of the stay, thus once again requiring federally
 enforceable emission limitations.

  ,   At the present time, the amendments,  as published -on
 August  7, 1980,  are in effect and  binding.   The definition of
 federally enforceable still stands:   emission limitations must be
 federally enforceable in order to  be taken  into account for
 offsets or  PSD applicability.   As  to the definition of federally
 enforceable,  the Agency continues  to maintain the position that
 operating permits not incorporated into a  SIP under an approved
 general bubble rule are not federally enforceable.

      During the  past six months the  Agency has been in the process
 of  negotiating a settlement of the industry  challenges to the
 August  7, 1980 amendments, including the issue of Federal
 enforceability.

      The Agency  has offered a settlement proposal,  which has been
 accepted by the  industry petitioners,  that would change the
 federally enforceable concept.   EPA  has agreed to propose
 accepting emission limitations as  creditable to the extent that
 they  are enforceable by either Federal,  State or local
 jurisdictions.   The word "federally" would be dropped  from the
 term  "federally  enforceable"  as used in the  regulations.   At the
 same  time the  term "enforceable" will  be defined as "enforceable
 under Federal, State,  or local law and discoverable by the
 Administrator  and  any other person."  This change will most likely
 have  the result  of making operating  permits  acceptable for offsets
 and applicability.

      Changes in  Federal  enforceability,  as well as  other chances
 that  result from the settlement agreement, must go  through general
 rulemaking  procedures.   Rulemaking procedure will follow the
 outline  in  the February  22, 1982 settlement  agreement.   The
 rulemaking may also include some type  of grandfathering  provisions
 for the  period of  the  temporary stay.   The grandfathering
 provisions may focus on  the commencement of  construction  curing
 the period of  the  stay.

      Please note that  until the rulemaking processes are  completed
 the existing rules  are still in effect,  if  any specific  proolems
 concerning Federal  enforceability  and  applicability arise,
questions should be  referred to Ed Reich at  382-2807.

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                                                                       *«. T •
             LNITED STATES ENVIRONMENTAL PROTECTION - :iNCV
       \                            REGIONS
     ;. /                    IjO SOUTH DEARBORN 57.

     .•'                      CHICAGO. ILLINOIS o6o04
   ZS i i  -cec
   ..  m i  iwWW
v <
I'occrcw A. yyers Jr. «..j.
Ststs -ssltn Ccnimis-!oner
iTcisna Stats 3oara of Health
". 22C 4. M.icmgan Street
         'is, Indiana
 ~^is  letter concerns  a  recant  action taken oy the Indiana Air PoT'ufion Control
 Soara  :IA?C3)  in  wnich  a  construction permit modification was aoorovec for the
 proaosed  Seng''s1  ^o^°^_':ru^  assembly plant near Fort Wayne.  On August 7,

 •"rom tne  -eventian  or significant Deterioration (DSO) permt issued 3y rne State
             20,  1984.
    srinary  concern  is  tMat  :he State of Inciana, wnich has seen Gelaflft£atf_/
          ta  i^plament tne  ?SO program on benalf of the Aaministrator of r
 _.i.  Environmental  Protection Agency  (UScPA), is expected to imolentent t!ie
 jrogram  in  accoraance witn tne  ?SD  regulations and guidance.  In spite of
 aersistent. jU-j^gStJP|g^^SPlffS>har granting the orooosed oermt noaification
 would  ae  in  ccnri-ict witn tne PSD regulations and guidance, tne State acauiescec
 to  tne GM request  and  removed the SO? control condition.

•Let me provide  a more  detailed description of the events leading to this situa-
 tion.  On Seotamber 30,  1980, USEPA's Region V delegated partial authority to
 :.ie State of Indiana to  imolement tne PSD program statewide.  This.delegation
 was amenced  on  January 21, 1982, to grant the State full authority to implement
 ana enforce  the PSO program statewide.  The delegation means that the Stata of
 I-tdiana has  the responsibility to review proposed construction projects for
 tneir  imoact on air quality and for tne aopropriata emission control techno!ocy,
 •n  accordance with the Federal PSO regulations.  If the aroaosea araject meets
 tre air quality imoact limits ana tne emission control racuirsments (3est
 -vailaole Control  Technology - 3ACT), the State *ouid ac: on aenaif of t-^e
 Aministrator of USEPA  and issue the persnt.

-------
 .'jst  oner to  issuing the  oennit  on  Novemoer  20,  1?3£,  t-.e ~ec.".n-cs!  Secretary
 ;f tne  IAPC3 SUPP!ementea  tne_j_rjpfls_ed^SQ^_aej.yt  condition of '.2 '.ss 5C2/"MB~-
 :y iscing a. 90 peftc^|i^;'^'-"^r>tift':f'0 you can readily conclude from the above summarized action,  the JSEPA con-
siders that the construction wnich is now talcing place near "or:  Wayne is only
      ized forFeder»l  PSO purposes, by the *fovemoer 30,  1934,  permit and not
      the permit amendment, as adopted by the IAPC3 on August  7,  '985.
 .-.:• JSEPA must continue to view the 90 percent SO? removal  condition  as
"ederally enforceable and "aoolicaole to the operation of the  two fluidized
csmoustion boilers in question.

~ia State's oracsssing of the 3N permit has aroused concern about ^nether or
•«ct the intentions of "Congress for preventing significant detsnopat:on  of our
:'r resources are pest oeing siet oy implemenfing the 3SO orogram at t.ie  State
ievei  in Indiana.  When the Tecanical Secretary of the  IAPC3  supports a  sosi-
tion contrary to the Federal regulations, and wnen the  IAPC3  tanes actions tnat
'•rr.are Federal guidance, :t is appropriate for ne to asx the  State :o reassess
•"s csmmtnient and aoility to implement the 'SO program in  accordance «
-------
I- ".ncnana aemonstratss in tne future tnat  it  -s  jnwiT'ng  to  foi'cw  JSErA's
gu'cartca anc -aginations *nt.i resaect to tne 3SD  program,  I  am sraoarafi  to
ameno tne c-eiegafon agreement to reauce tne State's  '•oie-.   Sucn  a  -eoucfon
•vcuia, of course, eitati a commensurate reaucticn  -n  CTaan  Air Act, Section
iC5 grant •"uncing.

If /ou nave *urtner questions on tne retails of tn:s  :ettar, oiease contact
'*r. ^tsve ^otnolatt of my star*.  3y al1 iieans, please  'et  ne  
-------
                   UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                    REGION IX

                                 215 Fremont Street

                               San Francisco. Ca. 94105
                                      Ref:   NSS  1-1
Mr. James D. Boyd
Air Pollution Control Officer
California Air Resources
  Board
1102 "Q- Street
Sacramento, CA   95814

Dear Mr. Boyd:

     The enclosed letter provides clarification  regarding  which
permits may be federally enforceable.  This  is especially
important in determining major source status under the  PSD,
NSR, and construction ban regulations, and in determining  the
potential for federal enforcement when a source  is in violation.

     Please note that three major tests must be  passed  for a
permit your agency issues to be considered federally enforceable.
First, the permit itself must be enforceable.  In  other words/
it must contain emissions limits with a reasonable averaging period
(usually not exceeding three hours), a method for  determining
compliance on a regular basis (annual stack  tests  are the
minimum here)/ and adequate record keeping.  Secondly,  the
permit program must have been approved under federal regulations
at 40 .CFR 51.18 (although not necessarily under  51.18(j)).
Finally/ the permit and the permitting procedures  must  fully
comply with or exceed the requirements of the federally approved
rule.

     If you have any questions regarding the legal aspects of
Federal Snforceability, please contact Nancy Marvel of  our
Office of Regional Counsel at (415) 974-8905.    All other
questions regarding permitting should be directed  to Matt  aaber
of our New Source Section at (415) 974-8209.


                               Sincerely,
                                      w. RaricJc,  Chief
                               Air Operations  Branca
                               Air Management  Division
Enclosures

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             'JKJITSD STATES ENVIRONMENTAL =>90~SCT1CN AGENCY
                               SEGiONIX
                            215 Fremont Street

                         San Francisco. Ca. 94105

                         November  6,  1985
G. William Prick, Esq.
Lathrop, Koontz / Rigtiter,
  Clagett & Norquist
2600 Mutual Benefit Life Bldg.
2345 Grand Avenue
Kansas City, MO.  64108

Dear Mr. Frick:

     In response to your letter of July  3,  1985, to  the
General Counsel, I have reevaluated my letter of June  14,
1985, to Mr. Richard O'Connell of the Hawaiian Electric
Company ("HECO").  Our letters concerned  the "federal
enforceability" of a new source review ("NSR") construction
permit issued by the State of Hawaii to  HECO.

     After considering the issues you raised, I have decided
to withdraw my earlier letter and to revise some of my initial
conclusions.

     First, I agree that a State NSR permit program  can  be
approved and included in a State Implementation Plan  ("SI?")
under 40 CFR SS51.18(a)-{i), even though  it may not  satisfy
the additional requirements of §§51.18(j) or (k).  Sections
51.18(a)-(i) specify the minimum criteria that must  be met
for an NSR program to satisfy the requirement of section
110(a)(2)(D) of the Clean Air Act that a  SI? include  "a  permit
or equivalent program to assure . . . that  national  ambient
air qualitv standards are achieved and maintained."  Sections
51.18(j) and (k) establish additional criteria that  an NSR
program must meet to satisfy the separate requirements of  the
Act for nonattainment and PSD areas, respectively.   See  Title  I,
Parts C and D of the Clean Air Act, respectively.

     However, nothing in §51.18 requires  a  State HSR program
satisfying section 110(a)(2)(D) to also  meet the requirements
of SSS1.18(J)or(k).  In fact, SPA aas indicated in the past
that an NSR program aiay be approved under §S51.13(a)-(i) for
inclusion in a SI? without meeting those  additional  require-
ments.  48 Fed. Reg. 3875-2 (August 25, 1983).  Accordingly,
if a State NSR permit program has been approved under
§S51.18(a)-(i)," any requirement in a perait  issued under -hat
program ordinarily woula se "federally snf crcsacle,''  as  ;n

-------
term  is defined  in  40 CFR  Parts  51  and  52. _!/

      In this case,  as I stated in my  earlier letter,  Hawaii's
SSR rules were approved for  inclusion in  the Eawaii  SI? as
being  "in accordance with  40 CFR Part 51."  48  Fed.  Reg.  37402
(Aug.  18, 1983).  Further  investigation of EPA  files  reveals
that  these rules were originally approved in 1972  and were
found  to satisfy the requirements of  40 CFR §51.18.   See
37 Fed. Reg. 10860  (May 31,  1972).  EPA's 1983  approval of
Hawaii's SI? revisions did not change that approval  status.
See 48 Fed. Reg. at 37402, col.  2.  Therefore,  Hawaii's
NSR rules were approved pursuant to 40 CFR §51.13, even
though they did not address  §§51.18(j) or (X).

     On the second major issue you  raised, I agree that the
definition of  "federally enforceable" does not  require that a
particular limitation in a permit issued under  approved NSR
rules must be  specifically mandated by, or included  in, the
SI? to be enforceable by EPA.  EPA's  definition only  requires,
in such a case, that the limitation be established "under
regulations approved pursuant to 40 CFR 51.IS . .  ."   E.g.,
40 CFR 552.2Kb) (17).  Thus, once EPA has approved a  State's  NSR
permit regulations under §51.18, any  permit limitation issued
under those State regulations would be federally enforceable/
even if the limitation was not specifically required  by the
SIP.

     This interpretation is consistent with 40 CFR §52.23,
which makes "any permit condition . . . issued pursuant to
approved . . . regulations for the  review of new or modified
stationary . . . sources" enforceable by EPA under section
113 of the Clean Air Act, without regard to whether  the
condition is otherwise required. 2/   Moreover, as you pointed
out, this interpretation is also Consistent with the  August 7,
1980r Federal Register notice announcing, inter alia,  the
"federal enforceability" definitions.  In that,  notice,  EPA
stated that source operators could voluntarily  "agree to
source-speciific permit limitations,"  45 Fed. Reg. 52689
I/  "Federally enforceable" permit limitations include  "any
~"   permit requirements established . .  . under regulations
approved pursuant to  . .  .  [§] 51.18 .  .  . ." E.g.,  40  CFR
S51.18(jHl)(xiv).

2/  This interpretation is  also consistent with 40 CFR  §52.21(r)
~~   (4) which requires that a source that becomes major-because
of "a relaxation in any enforceable limitation" on ics  emitting
capacity 2e suojscted no  ?SD review.  Again, nothing  i"
S52.21'r)(4) limits its applicaoility -3  limitations  mat
are sanca-sd oy me SI?.

-------
 (Aug. 7, 1980),  that  could be federally enforceable.   EPA
 intended by this  to allow operators to agree  to  permit
 limitations that  might not otherwise be required.

     Accordingly, with regard to the 3ECO permit limitation
 in question, if  that  limitation was issued under the  Hawaii
 NSR rules, the limitation could still be federally  enforceable
 even though not  required by the Hawaii SI?. 2/

     If you need  any  additional information on the  matters I
 have discussed/ please feel free to contact Nancy Marvel of
 ay staff at (415) 974-8905.
                              Very truly yours,
                              Karl. R. Mor thole
                              Regional Counsel
cc:  Regional Administrator
     General Counsel
     QAQPS
     Air Management Division, Reg. IX
3/  Of course, if the permit limitation  (sulfur-in-fuel)  is
~*   not enforceable as a practical matter,  then  the  limitation
would not be federally enforceable.   I cannoc  express  any
opinion on that point at this time.

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SiilTA. MEYSR.JTL,
   Office c: tr.i- -...-i. ,..,ir«wr
                         MORRIS :ioo
                                                        n SI ilHI $TXF«.N V

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                                                       miconui- :i
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DIRECT DlAf. (rtU) :27-I2*:
                         December  5,  ±385
                                                       CINCINNATI. OHIO *««
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                                                    t A//v  ~ O s ^ ' ~

                                                            :   /^ /&• / f
Freedom cf  Information Officer
United States  Environmental  Protection Agency
401 M Street,  S.W.
Washington,  o.C.  20460

          Re:   Freedom of Information Act Reques

Dear Sir or  Madam:

          This is a request, pursuant to the Freedom cf  Information
Act, 5 U.S.C.  §552, and" the  Environmental Protection Agency's
implementing regulations, 40 CFR  Part 2, for copies of documents
which identify each instance in which a requirement reflecting or
purporting  to  reflect "best  available control technology"  ("SACT")
and set forth  in  any final permit under the prevention cf  signifi-
cant deterioration ("PSD") provisions of the Clean Air Act and
implementing regulations, w.as changed,  adjusted, or revised after
                              As used in this recueg        ""
           n
  "identify" means  to provide the date,  subject, source,  and nature
  of any -such revision or adjustment.

            If there is one single document which identifies all 3ACT
  revisions or adjustments, you need only  provide that document in
  response to this  request.  If such revisions are identified in mere
  than one document, please provide the  fewest number of  documents
  necessary to fully respond to this request.

            You may take this letter as  our agreement to  pay any
  lawful costs you  incur in responding to  this request, up  to a
  maximum of $100.00.  Please contact me by telephone before incur-
  ring costs in excess of ihis amount.

            If you  have any questions regarding this request, or if
  further information is necessary, please contact me.  Thank ycu ir.
  advance for your  prompt cooperation.

                                 Verv -rulv vours ,
                                               -
                                     /'     / V'
                                     Su  <:'// /W'.  <
                                     >,^~, - ^ . .  /    f.     /1-
                                 'Robert  A.  Meyer, Jr.   //

-------
                                           "~     - ^ .  . — u -              — , ^""
                               MAR 131986
     MEMORANDUM
     SUBJECT   Time Frames for Determination of Applicability to
               New Source Peview

     FPOM-     Director
               Stationary Source Compliance Division
               Office of Air Quality Planning and Standards

     TO        Bruce P. Killer, Acting Chie^
               Air Programs Branch, Peg ion. IV

          In a recent phone conversation between Roger Pfaff of
     your staff, and Sally Parrell of my staff, time- frames for
     determination of compliance with permit restrictions on hours
     of operation, or rate of materials/fuel use were discussed.
     Specifically, inouiry was made as to whether SSCD considered
     a rolling yearly average on a daily basis (i.e. averagina
     some parameter over 365 days, where each day starts the
     .sunming/averagino period for a new year) as an appropriate
     measure of applicability to Prevention of Sianif leant
     Deterioration (PSD) and nonattainment new source review
          A source may commit to limit its production by includina
     federally enforceable restrictions on hours of operation or
     fuel and materials consumption in its nermit.  Limited
     operation of the source may serve to lower its emission rites
     to levels below those which triager PSD/NSP review.  Such
     permit limits are used by sources to avood .major source
     review.

          At  the HSR meetings in Denver this January, attended by
     new source review staff from Readouarters and all ten Regions.
     it wab aareed that a month long period ror these permit restric-
     tions is the longest time frame that snould be accepted as
     Federally enforceable.  Under the constraints of Section 113
SVMSOb


SUNMAMC '
EP» r~m I320-) (12*70)                                                    OFFICIAL Fi'

-------
                             -2-

of the Clean Air Act it would, in practice, be difficult to
enforce violations using a longer time frame, such as an
annual average.  Open finding of a violation. Section 113
requires that EPA first issue a Notice of Violation.  Zf the
violation extends 30 days beyond notification, the Agency may
then issue an order to comply or take civil action.  Zf com-
pliance is baaed on an annual average, there may be a con-
siderable time lag before the violation can be enforced.
Therefore, a one month limit is agreed to be the maximum time
EPA should generally accept for avoiding a PSD/HSR threshold.
However, if a source ia unable to use the monthly limit (due to
seasonal variations in production, for example), rolling periods
of longer durations are also acceptable for determining applica-
bility to major source review.  With the year long rolling average
on a daily basis, the source must demonstrate compliance for any
consecutive 365 days, thereby averting the problems encountered
with enforcing discrete annual averages.  A twelve month rolling
average (year long, on a twelve month basis) is the maximum time
frame that would be accepted as federally enforceable.

     It should be emphasised that-the averaging periods recommended
are for the purpose of determining applicability to new source
review.  The above policy ia not to be extended to determination
of compliance with emission limitations.
     If you have any Questions, please contact Sally H. Parrell
     8 382-2875.
at PT8
                       Edward E. Reich

cc:  Marcia Spink, Region X
     Ken Rng, Region ZI
     Ben Nykijewycs. Region ZIZ
     Roger Pfaff, Region ZV
     Ron Van Mrsbergen, Region V
     Troy Oberg, Region VI
     Dan Redrigues, Region VII
     Steven Prey, Region VIZI
     Matt Baber, Region ZZ
     David Bray, Region X
     Klrt Cos, OAOP*
EN-341:S.Farrell:ard:3-4-86:Disk*ltDraftil:3/3/86:Final*1:3/4/8 6.

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                                FEB 1 & JS37
"S7LT TO:  *T-ET
  . to?n
     and Associates
     r:*yton lan«»
Suit* 3?0 U
•jistin. Texas   7^773

5*:  ?S!) Applicability 9«juest, Valero Hy^rrcartw  Coopony
                    County, T*»*as
     NT, '.{aid:
        tave rpviwed yawp January  1<3,  l«7,  request  for a determination of
        Valero Transrrisslan Cowany and Valero Hydrocarbon Cooqany are separate
Stiurces for t.ta purposes of deteroriaimj the applicaoillty of our relations
'"or t^• »rif»ent1on of Significant npt«»ri orati (*n (PS11.   T?J* Infnntation tr»*t
/o-j ^ave provi-Jad Indicates tnat Valero ^ydrocaraon Coapany ?tas an extraction
facility in clos« proximty to Valero ^atP*ring Copvany  and Valero Transwssinn
'"ncpany.  Th»» extraction facility's primary orortucts  ara cthan* and heawy
             rr»novort fpoa tn*? natural gas.  T>s mova!  of liquirts Is not
          to twife tftp natural -jas swrvetanlc.  Valero Ky<>on Cor4pany
    a standarri Intiustrial Hassificafion  (StO cort- of 1321 (Major Cronp 13)
    p -.'r»lero Transmission L'otsyany has d SIC CWP of ^"32 (Hajor Ircup '!«).
           nn our revirw of t*p  .ivsilahl*"  infomafion. it  is evident t^at tn<-
          products of ^alero  Hvrtrocarhon  are f-tnane and neawy hyr»rocart»ons
      tne principle product of Valero «a taring Co«pa«y and Valero TransFrission
     ny Is natural 535. It  fs further »virtent that tfalero Hyrtrocarfton
•'fx»s not assist in tne pro-Aietlnn  of  trre  natural  gas pru<*»c*i dt Valero* s
r.«*prfn»j and Tr.^ssrissinn  plants. «• t*»prefnre conclude that Valero
        is ft s«»uarat» facility frcr» V«l«»ro Transmission CoH>any and Valero
          Camcamr r'cr t?>« purposes of aS*> aoclicability.
     This o kiatrserimj Company and Yalero Transmss'icn
        are to K«* consider*^ <«s  one swircf*  'or t*»» (Jtirjcses f?* nsn

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                                       2
     '-> flppreciate  th<»  opportunity  to review this matter.  If you have any
•i'i«-stions, ;.l*a$e caM  ir.  Stanley  M. Sprulell  of ?y staff at (214) 767-0875.

                                Sincerely yours.

                                •s/ William B  Hathaway
                                Will Ian n
                                ni r*»ctor
                                Air,  P»%ticirtes and Toxics Division (6T)
••r:   --T. fllipn Kl i
                Pi net or
            A1p Control
      "r. Lawr-ncs.- Pcwitt, f'."..  Director
            s l^visio^
            Air Cnntrol !«

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               UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                      REGION 5
          <                    230 SOUTH DEARBORN ST.
                                CHICAGO, ILLINOIS 40604
       _  .fM                                                      «£PIY TO THE ATTWTION OF


 Roger D.  Anderson, P.E.
 Building  21-2W-05
 Environmental  Engineering and
  Pollution Control
 3M  Corporation
 P.O.  Box  33331
 St. Paul, Minnesota  55133

 Dear  Mr.  Anderson:

 This  is in response to your letter that we received on March 2,  1987,  concerning
 appropriate volatile organic compound (VOC) emission limits for  the proposed
 pilot  coating  equipment in Maplewood.  The pilot coater is being added to  an
 existing  source that has the potential to emit more than 250 tons per  year
 (tpy)  of VOC's in an ozone attainment area.

 Two issues have been raised during our discussions about this project.
 namely, (1) are the Prevention of Significant Heterioration (PSD) regulations
 applicable if  the pilot coater is not expected to have emissions greater
 than 40 tpy, and (2) if the PSD regulations could apply, how can a permit  he
 written to avoid PSD review.

 The PSD regulations apply if an existing major source is modified resulting
 in a significant net increase in emissions.  In determining what is the  net
 increase in emissions of a modification, "actual" emission increases from  the
 project are added to other "actual" increases and decreases occurring  during
 the contemporaneous time period.  In this case, the only emission increase is
 from the pilot coater.  There are no other contemporaneous increases or decreases.
 Since  the significance level for VOC emissions is 40 tpy for PSD purposes,
you are correct in your understanding that the PSD review requirements are
 triggered when there is an "actual" net emission increase of 40  tpy of VOC
 occurring at an existing major stationary source.   However, in your assumption
 that PSD does not apply to the proposed project because actual emissions  rom
 the pilot coater will be less than 40 tpy, one provision of the  Federal  rules
was overlooked.  That provision states that "actual emissions ...for any
emission unit which has not begun normal operations on the particular  date
shall   equal  the potential to emit of the unit on that date" (emphasis  added).
See section 40 CFR 52.21{b)(21)(iv).  With this understanding, the addition
of the pilot coater is  a major modification because its potential to increase
VOC emissions exceeds 40 tpy at an existing major stationary source.

The terra "potential to emit" is defined in 40 CFR 52.21(b)(4) as the capacity
to emit a pollutant at  maximum designed capacity after considering any federally
enforceable limits on control equipment and federally enforceable limitations

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 on operations.  The potential emissions of the pilot coater can be reduced to
 below 40 tpy, if a federally enforceable permit condition is placed in the
 the construction permit.  To be federally enforceable according to 40 CFR
 52.21(b)(iv), the Administrator must be able to enforce limits  under the
 State Implementation Plan which includes permit conditions  issued under the
 Minnesota construction permit program.

 Futhermore, the United States Environmental  Protection Agency (USEPA)  has
 determined in one of the two memoranda  you  cited in  your letter (Attachment
 *1,  January 20,  1984 memorandum from John O'Connor,  Acting  Director of the
 Office of Air Quality and Standards)  its policy on  federally enforceable
 averaging times  for VOC emissions.  The  O'Connor memorandum  states that for
 VOC  emissions a  daily emission limit  is required for regulatory actions where
 continuous compliance is not feasible.   Regulatory  actions  referenced  in the
 memorandum include construction permits.   If a  daily emission limit is not
 economically or  technically  possible, a longer  averaging time may be considered,
 but  it must be as short as practicable  and  no longer than 30 days.   In order
 for  VOC emission limits to be federally enforceable  ancr able to affect the
 potential  to emit,  the emission limit must  comply with  the  averaging time
 requirements of  the O'Connor memorandum.

 USEPA  has  further determined in the other memorandum cited  in your  letter
 (Attachment #2 March  13,  1986 memorandum from Edward Reich,  former  Director
 of the Stationary Source Compliance Division) that  if operating parameters
 (for example,  hours  of operations or  amount  of  raw materials entering  a
 process)  are going  to be limited, short-term averaging  of these parameters is
 also required.   Monthly  averaging is  generally  the  longest  averaging time
 that USEPA  will  accept as  federally enforceable with regard  to  operational
 limits.   Please  keep  in  mind that the March  13,  1986, memorandum from  Edward
 Reich  states that averaging  periods recommended for  operational  limits are
.not  to be  confused with  our  policy on averaging periods  for  emission limits.

 The 3M Company has  not,  as yet,  demonstrated why a daily emission limit is
 not possible for the  pilot coater.  Perhaps,  if such a  demonstration cannot
 be made, the project  should  be  considered a  PSD source.

 If you  have additional questions in regard to this matter, please contact
 Ron Van Mersbergen  at  (312)  886-6056.
Sincerely
Stevi Rothblatt, Chief
Air and Radiation Branch  (5AR-26)

Attachments

cc:  Elizabeth Henderson MPCA

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USE/
               UMTED STATES EM IRO.YMENTAL PROTECTION AGENCY
                            WASHINGTON, D.C. 20460
                         ^'3 _ Q . "•"
                         ir r\   o - ^ i
                                                             OFFICE OF
                                                           AIR AND RAOUT1O*
 MEMORANDUM
 SUBJECT:    Clarification  of  New  Source  Review  Policy  on
            Averaging  Times  for Production  Limitations

 FROM:       John  S.  Seitz, Director
            Stationary Source ComplL
            Office of  Air  Quality Planning  and  Standards

 TO:         Air Management Division Directors
            Regions  I,  III and IX

            Air and  Radiation Division Director
            Region V

            Air and  Waste Management Division Director
            Region II

            Air,  Pesticides and Toxics Management Division
             Directors
            Regions  IV  and VI

            Air and  Toxics Division Directors
            Regions  VII, VIII and  X

    On March 13, 1986  the Stationary Source Compliance Division
 issued the  attached memorandum which describes EFA's  policy
on maximum  allowable averaging times for production and
operational limitations.  The limitations  addressed are those
which restrict a source's potential to emit to below  PSD/NSR
major source or major modification thresholds.  Since the
issuance of this memorandum last  March, there  have been
several attempts to misuse the policy and  apply it to emission
limitations, rather than to production/operational limitations.
The purpose of this memorandum is to distinguish between
EFA's policy on averaging times  for production limitations
versus emission limitations, and  to clarify the proper
implementation of the March 13,  1986 memorandum.

    Production limitations place  restrictions  on a source's
operating rate, or  rate of material throughput-  Examples of
production  limitations are:  hours of operation, gallons of
coating per joo or  per unit time, .milion  3TU  per unit time,

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                             - 2 -

 iraterial  processed per unit  time.   Federally enforceable
 limitations  on these parameters •nay serve to limit  a  source's
 potential to emit  to below major source  thresholds.   EPA's
 policy  on the longest averaging times  that are  considered
 Federally enforceable is  s^t  Forth  in  the -March 13, 1986
 iiemorandum from Edward E. Reich.  The  longest averaging  time
 generally acceptable for  the  purposes  of  practical  Federal
 enforcement  is one month, however,  a source nay seek  approval
 of  longer rolling  averages as discussed  in that memorandum.

     Emission limitations  place restrictions directly  on  the
 source's  pollutant emission  rate.   Examples of  emission
 limitations  are:   Ib VOC/gal  coating,  Ib  VOC/hour,  Ib S92/MBTU,
 Ib  SC^/hour,  grains partieulates/dscf.   In order for  emission
 limitations  to be  Federally  enforceable  from the practical
 stand point,  they  must  be short term and  specific so  as  to
 enable  the Agency  to determine compliance at any time.
 Emission  limitations on a yearly  basis alone (e.g., tons per
 year, or  rolling yearly averages) do not  satisfy EPA's
 requirements  with  respect to  Federal enforceability.   EPA's
 policy  on  averaging times for VOC emission limitations is stated
 in  the  January 20,  1994 memorandum  from John O'Connor,
 Acting  Director of  OAQPS.

    The March  13,  1986  Edward Reich memorandum  describes
 EPA's policy  on averaging times for production  limitations
 which limit  potential  to emit  to below major source or major
 modification  thresholds.  That  memorandum states  that the
 averaging  time  policy  for production limitations does not
 apply to emission  limitations.  Therefore,  limitations on a
 source's emission  rate  (e.g.,  Ib VOC/unit time)  designed to
 keep the source's  potential emissions below NSR/PSD thresholds
 must comport  with  EPA policy  on emission  linitations.  Sources
 may not use  the March  13, 1986  memorandum on averaging times
 for production  limitations to  justify the use of  longer  (e.g.,
 yearly or monthly)  averaging  times  for emission limitations.

    Any questions  regarding this memorandum or  the March 13, 1986
memorandum may  be directed to Sally M. Farrell  at FTS 382-2875.

Attachment

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                            - 3 -
cc:  Gary McCutchen, CPDD
     David Soloman, CPOD
     Marcia Spink, Region I
     John Courcier, Region I
     Kenneth Eng, Region II
     Karl Mangels, Region II
     Esf.ena McGhee, Region III
     Wayne Aronson, Region IV
     Roger Pfaff/ Region IV
     Ron Van Mersbergen, Region V
     Rizalino Castenares, Region V
     John Behnam, Region VI
     Stanley Spriuell,  Region vi
     Charlie whitmore,  Region VII
     John Dale,  Region  VII[
     Steve Frey,  Region VIII
     Wayne A. Blackard, Region IX
     David Bray,  Region X
     Gregory Foots, OGC
     Judy Katz,  OECM

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           3. PSD



Definition/Classification of Source
                                                  09

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                                   JUN   9 I3SO
      SUBJECT:   PSD  Applicability,  South Ho s pah Mine

      FP.OM j      Director
                 Division  of Stationary Source Enforcement

      TO:        Allyn  Davis,  Director
                 Air  &  Hazardous  Materials Division,  Region VI


           This  is in  response to your iceno of May 6,  1980,  in which you
      requested  guidance  regarding  the accounting of fugitive emissions
      in determining potential to emit for surface coal mine and coal
      preparation facilities .

           The September  5,  1979 proposed PSC regulations require the
      consideration of fugitive  emissions in determining PSD applicabil-
      ity for sources  regulated  under Sections 111 and 112 of the Clean
      Air Act, as well as  those  source categories listed in the defini-
      tion of major  source under PSD*  Facilities which prepare coal by
      one or mere of the  following  processes: breaking, crushing,
      screening, wet cr dry cleaning, and thermal drying are considered
      coal preparation plants subject to regulation by Section 111 XS?S.
      4C CFR 6C  Subpart 7.

           A surface coal  mine and  coal preparation plant are located or.
      a ccraon site at the South Eospah Mine.  The mine and preparation
      plant are  considered one source under the Septer-ber 5, 1979
      proposal since they  are located on contiguous cr adjacent property
      and are owned or operated  by  the sane person.   What remains to be
      determined is:   What type  of  source is this?

            /According  to  data received from your staff regarding this
      source, the coal preparation  plant will have .the potential tc cr..it
      approximately  5.G tons  of  controlled coal ends si on s per year.
      There are  virtually  no  fugitive emissions froc the plant since the
      major emitting equipment is basically enclosed.   The 5.6 tons is
      far be lew  the 250 tens/year potential to en.it which is necessary
      for PSD review.                                                 " "
                                  COMCURBEMC23

                                                      	1	1	
»A = •«•
     i:28.l UZ-70)
                                                               OFFICUi. ?lt£ C3PY

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        US-TED ;•  ~-f d-r
      The main activity located at this site is the coal. mine.  In
 determining FSD applicability, this source would be considered a
 surface coal nine and, therefore, fugitive emissions would
 generally not be counted in the source's potential to emit.
 However, I would like to point cut that while this interpretation
 excludes the mine's fugitive emissions when determining
 applicability of the PSD regulations, if the coal preparation
 plant,  in ccaiination with the non-fugitive emissions free the
 mining operation, had the potential to emit 250 tons per year of
 any pollutant regulated under the Act, the entire source would be
 subject to PSD review.  BACT analysis would be required for all
 emissions,  both fugitive and non-fugitive, at both the mine as
•well as at the coal preparation plant.

      In view of the above decision,  the following are resoonses to
 the questions you specifically raised in your memo reearding
potential to eeit as it applies to the circumstances at the South
 Kcspah  Mine:

      1.   Fugitive emissions from blasting removal of overburden
          and haul road traffic  would net be included.

      2.   Fugitive emissions from blasting, loading,  dumping and
          storage of coal would -not be counted.

      3.   Process emissions both fugitive and ncn-furitive would ke
          counted at the coal preparation plant.

      If  you have any further questions regarding  this matter,
please  contact Janet Little John of *ny staff at  755-2564.
                                   Zdvard  C.  r.eich
cc:  Jijr, V,cigolc  (CACPS)
     Feter Uyckoff  (CGC)
SSs341:jl/ncfc:5/15/30:

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                , Determinations for Sosjrce-Corrleaes. Consisting of
.02! Preparation Facilities  and Surface Coal :'/;nss~

-illyn Davis, Director  _.>..
Air 2 Hazardous Materials Division, Region 6

Edward Reich, Director
Division of Stationary Source Enforcement
In two  phone conversations  on April 23, 1980. and on Hay 2, 1S30, we Indicated
a need  for guidance as to whether fugitive emissions frcra nining operations
(particularly,  ncn-coal fugitives) should be included in determining potential
esif ssipr.s frca a mi.ne which has  a coal preparation plant on site.

In another phone conversation on April 28, 1930, Bob Myers said that a facility
as sinple as a crusher or a breaker can be considered"-* coal preparation plant
as defined in the applicable ttSPS.  The definition of "potential to emit"   ._•
in the  Septaaber 5, 1S79, proposed PSO regulations indicates that fugitive
emissions count with respect to  any stationary  source which is beino reflated
under section 111 (HS?S) of the  Clean Air Act.  Must fugitive enissions'frcm
tne aining operations, including non-coal fugitives, be counted in determining
potential pissions?

One'exanple of" the problea  is the South Kospah  Kine application.'  The mine
will  yield a raaximua of 3.4"million tons  of  sub-bitaainuous coal annually and
will  include coal crashing, storage,  and  rail load-out facilities.  The coal
is hauled by truck to a preparation  plant where it will undergo the primary and
secondary crushing. •'  '- v ..

Esrfssion rate calculations are based on 24-.COG  tons per day and 3.4 million
tens per year of coal rssoval and  preparation.  The total  controlled maxima
esnssioa rates fron all sources  of particular  matter (coal and  non-coal emissions)
will  be 2.353 tons per year.  Before the  coal  is  removed  and  prepared, the over-
burden is blasted, drilled, and is reaoved  by draglines and dozers.  These
operations, along with haul roads  and -surface-vind erosion, are  all sources of
inon-coal fugitive dust—The South Hospah Mine  should generate 2.350 tons per year
.{after control) of these non-coal  fugitives.
 ^l_
 There are, 13.3 tons per year of actual coal emissions (not overburden or
 native soil).  The controlled coal emissions which are attribrt»d to fugitives
 ?re i:7 tons Per year.  These emissions come frccn such operations 4S coal
 Djasking. drilling, loading, duirpir.t«, and storage.  The controlled  co.tl emissJons
 >«icn are derived frca its preparation are 5.6 tons per year.

 If only coal emissions are considered, the Scuth Hojpth'iltne is not a major
 source.  If all sources of particulate Missions are considered, the South  Kospsfc
       m be required to receive a penait.

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                                     -2-
In determining the nine's potential  to eait» must we include:
     (1)  fugitive emissions frets blasting and renoval  of  overburden, and haul
          road dust;
     (2)  fugitive esrissions fron blasting, ranoval,. loading, diBrp-inSt
          and storage of coal; and
     (3)  process emissions at the coal preparation plant?
We have several  other similar applications whose applicability  determinations
are pending under the interim PSD provisions.   We, therefore, urge you to respond
as expeditiously as'possible anrf no later than Kay-15, 19SO. • If you have
questions, please contact ma or Jack Divita at 72S-2742.
cc:  Lifaby Scopino
     Division of Stationary Source Enforcenent-

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                                                             3.2
                         5-2-77
SUBJECT:  PSD Seteraination of Applicability -
          CMD Goal'Gasification Plant

r?.CM:     Director,  (ZH-341)
          Division of Stationary Source Znforcesent

TO:       David A. Ullrich, Acting Chief
          Air Enforcement Branch - Reg. V
     This is in response to your ceso dated April 15, 1977,
concerning the coal gasifier proposed for the University of
Minnesota Duluth  (UMD) Caspus and its applicability to the
Prevention of Significant Deterioration "(PSD) regulations.

     This office  in conjunction with the Control Programs
Development Division  (C?DD) has decided that the facility is
not subject to-the recuiremen-es of •*«> Snlth
      Edward E. Reich
DSSZ:"SBiondi;and  4/28/77
                          CONCURRENCES

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D-t'i
                       STiTSS ENVIRONMENTAL PROTECTION AGESCY
       r.o^  "  ' 1C7"?               REGION  V
       Ji.Prv  iv b/+-

      PSD  Determination of  Apslicability  -
      U.'-'D  Coal  Gasification Plant

      David A.  Ullrich, Acting Chief
      Air  Enforcement  Branch

TO    Edward  E.  Reich,  Director
      Division  cf Stationary Source
        Enforcement  (EN-341)

      The  Energy Research and Development Administration  (ERDA) and the
      University of  Minnesota are  jointly planning  to  retrofit a Foster
      Wheeler Stoic  two-stage coal gasifier  unto existing boilers at the
      University of  Minnesota Duluth  (UMD) Campus heating plant.  Region V
      has  made  an initial determination that this gasifier is a fuel
      conversion plant subject to  the Federal  Prevention of Significant
      Deterioration  (PSD) regulations, 40 CFS  §52.21.   However, the only
      emissions  will be from the existing boilers.  Me plan to meet with
      ERDA and  UMD officials in Minneapolis  on April 27,  1977, to discuss
      this matter.   Please  review  the attached two  letters and the attached
      2-volume  Program Opportunity Notice, and furnish your verbal deter-
      mination  on whether or not this gasifier is subject to PSD, to Mr. Bruce
      Varner  at 353-2086 or Mr. Eric  Cohen at  353-2090, by April 26.  Mr. tfarner
      has  discussed  this matter with  your Mr.  Richard  Biondi.

      Relevant  technical information  on the  gasifier is contained in Volume 1
      of the  attached  Program Opportunity Notice as follows:

             pp.  4-5                   Coal specifications

             pp.  16-22                 Process description

             p.  29                      Mass and heat.balances

             Appendix  A-4,  pp. 6 and  7 Oil  and gas flow  diagrams.

             Appendix  A-6,  all         Equipment drawings

             Appendix  A-9,  p. 7        Emission estimates

      Should  you determine that this plant  is subject to PSD, we will undoubt-
      edly request assistance from the Office  of Air Qua-lity Planning and
      Standards  in determining Best Available  Control  Technology  (BACT) for
      particulate and  sulfur dioxide. However, any BACT  guidance you can
      furnish by April  26 would be most appreciated.
                                           David A. Ullrich

       Attachments

       i. 8,. j ;«.

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                                  -2-
cc:  Michael Trutna
     NSR Focal Point, CPDO
       (NO-15)
     (w/attached 2 letters only)

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              UNIVERSITY OF MINNESOTA , Ph/stcji =>:an: '/c-.irsnanc- ana Operations
              TWIN CITHS
200 Shops Eui!c!:ng
Minneapolis. Minnesota 55455

                         March S, IS"'
Kr. Erick  Cohen
C«r.?li£acs Section
Air Enforcement Branch
Znvirorer.er.tal Protection Agency
Region V
230 South  Daarbom Street
Chicago, Illinois 60604

Dear Mr. Cohen:

I aa forwarding a copy of our proposal on coal gasification as informative Tnateria.
on the unit to be installed at the University of Minnesota Duluth Catnp-js Keating
Plant.   In addition/  we have received your correspondence on Application tor Appro*
to Construct/ and we  will be submitting a formal response within ten days.

Since the  proposal details the technical Requirements, Design Approach fi Kethodolo:
Environmental Considerations and Socio-Economic Impact of the installation/ ic is
submitted  as background information.

It is the  intent of this State of the Art demonstration plant to prove that low Bf
coal gasification/ as a front-end system for steam boiler operation/ can be a cost
effective  process as  well as being environmentally sound.

All on-site coal storage/ coal handling/ ash storage and ash handling will he com-
pletely housed.  Oust control equipaent will be installed in the coal unloading
and ash loading facility.

Stack emissions from  ths bailers burning the low Btu gas vail be below present-day
regulations on stack  emissions for both participate and sulphur oxides.

In addition to instrumentation and metering equipaent for evaluating the gasifier
and the gas cleanup equipment/ the best in shelf item monitoring equipment will be
installed  for the analysis of stack emissions.  We,will request the approval of til
Minnesota  Pollution Control Agency in the selection of the monitoring equipment.

As ve progress through the detail design of this installation, we are copying ths
MPCA with  all drawings.  If your office desires copies of drawings other than fina
drawings/  please inform me by letter or phone/ 373-4521.

                                          Yours very truly,
l-7ES:VP                                    W.  E. Soderberg       1
                                          Director, Physical Plant
cc:  Russ  Oardos,  ERDA
     Edward  Wii):,  MPCA
     Fran:-. Blackball,  MPCA
     Del Hrcss,  FKEC              N« L- Rich/ UI-lD
     C. II. Coldsoith.  GSM         Joseph TooacK,  CM
     A.  k. Potami, UM             Richard Lewis,  UK

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        :• i; j  r.'.1!"* CITIES
2CO 5ior>s :~u.'.t -ic
Minneapolis, Minnesota 55-155
                                                                   March 15, 1977
 Mr.  James 0. McDonald, Director
 Enforcement Division
 U.S.  Environmental Protection Agency, Region V
 230  South Deariscrr. Street
 Chicago,  Illinois SG5C4
 AT7H:   Air Compliance Section

 Dear Kr.  McDonald:

 Shis is an inquiry letter asking for clarification on  the nee=  for an  SA "Approve
 to Construct" fcr a aodificatior. to tr.e university of  Minnesota Duluth Campus haat
 ing  pla.-.t.  We have previously submitted a copy of the University of Jlinnesota Z3I
 Proposal  as background inferaaticn.

 The nodifications at the Duluth plant include the following:

      1. Installation of a fixed bed/ two-stage coal gasifier  {rT-^Stsic).

      2. Gas cleanup equipment.

     3. Burner codifications on two boilers.

     4. Add-on coal storage and oil storage facilities.

Presently, the plant is IJeited to gas/oil firing cue  to the type  of boilers  and
the lack  of stack emission cleanup eeuipr.ent.   As we project to the  near  future,"
the plant will ba further restricted to oil firing only,  we further prs;cct  lir.i*.
supplies  of fuel oil that coule. jeopardize the continuity of Cacpus  operarisn.

The retrofit of this plant is a partnership venture between EOA anc the  Oniversir
of Minnesota.   It is the goal of this program  thar the addition of a close  couplsc
gasifier  as an expansion of the boilers will creche no er.viromcncal deteriora~icr
and will  bo an environmental and cost effective method of retrofitting  existir.^
gas/oil fired  boilers.
                      r
As I review* the sources subject,  the only classification that seeas  to  apply  is
Identification IS — Fuel Conversion Plants.   I would  like to list the  following
corcsents  for your review:

     1. The normal points of esiission will be  the same as a conventional  coal-
        fired  boiler plant,  exic flue gas from boilers and asn  residue.   7he
        ninor  add-on point is a small gas flare for startup and  shutdown  of the
        gasifier.

     2. Gas  generation  will bo limited to in-plane use.

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 To:   Jc:-=S 0. .".cConald, US LIT
'r.si  -"Approval to Construct" I .r a nodification  to  the  v.O  Jicating j^ii.nt.
      3.  This is a relatively rraall demonstration unit  f3 tons/hr.,  maxirausi)
         that will be closely monitored and evaluated for not only  efficiency
         and cost effectiveness, but also changes in the environment of the
         involved Ccnsnunity.

 In  conclusion,  we are continuing in the preparation of an application  for appr-sval
 to  construct as well as working with the Minnesota Pollution Control Agency  on the
 needs  for  the application of a perjr.it for construction.  We are avare  that one of
 the two  Agencies will be involved in the issuing of a perait for this  installa€io"H:
Your comments will be greatly appreciated.
                                          Yours very truly,
WES:VF
W. E. Soderberg
Director, Physical Plant
cc:  Russ  Bardosr  ESDA
     Edward WiiJc,  :-3CA
     Richard  Starns, I!PCA
     Richard  Lewis,  D  of M
    3/17/77:   Cohen-''

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                 UNITED STATES'ENVIRONMENTAL? PROTECTION AGENCY
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                                           'CLw-n^)-
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 SUBJECT:   "PSD ' Aoplic


 PROft :

 TO:
                                                : Chwaidar ^MpdTf i'cat ion ,
                    :Di rec t'orV-lD iy is Com of$ batfiona ry '•Sour ce "Snibr cenent

                    Eloy.-IT.  Lozanov^D tree tor
                   \Air_ and .Baza rdous* Ma tetials ".b iv islbn. *
  . Th-iTs ;-f 37 iri'^r e spo nae^jto»-ypur ^ineato" dated "July:* 13- £ 197 T;
n tstnln  the "Eixon.. Cheni'eal CAahr-j!ns'Sat:onf ' Texait"1*>:
 con tstnlng
 It .Involves-" a
                                        ; ; CpAgahyr-j!ns'Sayt:onf '
                                        " Bsucon
 existing''rpetrobbenical':plant, ."located ':at "tbe^si te. of^the^r
 Exxon" p'etrpl'eua. ref ine"ryr,--"AB«.':tfie'; regulations are*pr^s;-:^
 aul'ga ted ii Parti 52 ^the-etr ociiem ical*  lant.' would*. &e-suB
         auga ted; ii; Parti 52 ^the-petr ociiem ical* plant.' would*. &e-^
        -ject .ta -theMrequirencntV oft'-PSD-, -if "if we re-con side red":
                                      -.ref inetj..
     ' Prjey_i'6u^deterBina.tIqns --'regaroTing- petrochemical-;. ^.
 pla'nfcs .'a.t'^e.troi'eon ;refirief ies' have-v-ConsisteptiyT- inter^,
 pc'etedithe.-iregulat-iohs "as-japplyihgithe PSD  requireiaenCs''
'to- • suci^pjsj^ochCT^alJpla^ts.^^'J^a^reaibn [ f p'r-i'tJi
•pteV iduafcr interplFe€atton.i.wa^t:ha€s>tB»^pe-nr oietfe 'i
 ^ •  *•• ™ ^ ^ ^ * • • • -^j ^ *^»**^M ^^ _y V» • •••i^^* X™ " •  «^'»,~  ™     ^^>  ^— •  " .
.v*ous ijtt"erpcataTwas^fia7V^reOT.ifeo>^ali"acifa:ctii
 to Ibe subiect^ Vo^ihe^PSTfer^ulxeiaehtsi;:: J ^eiieve^thafr^
.5xxon- Chemicai^/Bbaifrcation  -»—»•'-»•- -i -•»• w-3iAw'4.**-«**
"to- the  PSD:ir1equrreinen.ts."
                Passage  of.;_the.-Clean'.;Air
         explic'i*tly.:requlires sources  of. this nature\tp--cbmp'l^ir:C
         with  PSD rec'uirement'a upozi^-rsvisic'ii of SIP&.^'I-da "hot--
         thinJc-if would fee. benef icial~.f or the Agency.-ta-chang-e.'V
         its -interpretation. r.ov;.;regarding these faci-litires^V^p
         and then-to.go bac^-and'require these source J:ype's-'tos:
        'seet  the-PSD reeoireaent "a "short tiaie th'efea"fteri-?:'-':V

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        yea have  any :ad?itiohall'questions  or  consents
please contact .Rich  Biondi -(755-2564} *.o£ ay staff.
                               Edward  E.  Reich
cc:  Dicic Rhoads *
     Hike Tronta

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   i,      UN TED STATES ENVIRONMENTAL PROTECTION AGENCY

   3                    WASHINGTON. O.C.  20460
  'j
  .•f
Mltr
                               1 9 '379
                                 *                 OFFICE OF ENFORCEMENT
 Mr.  Miro Dvirfca
 William F. Gosulieh Associates/ P.C.
 I Cros sways Park West
 woodbury, 3R»w York  11797

 Dear Mr. Dvirfca:

      I am writing in response to your  Letter  of November 9, 1979,
 in which you requested clarification, of  the Federal air
 pollution regulation for the prevention  of significant
 deterioration (PSD) as it applies  to municipal incinerators.
           letter seemed to confuse  the  PSD regulations, which
 specify a size cutoff of 250 tons/day charging capacity with the
 Standard of Performance for new  incinerators  (40 CFR 60.50
 (1978}} which specifies a size cutoff of 50 tons/day charging
 capacity.  For that reason, this memo will address both sets of
 regulations, HSPS and PSD.

      I should point, out that new incinerators locating in areas
 designated as "non-attainment" under §107 of  the Act may also be
 subject to the -Interpretative Ruling, published at 44 Federal
 Register 3274, January 16, 1979, or the ruling on growth
 sanctions published at Federal Recister 38471, July 2, 1979.

      The 8SPS applies to new incinerators of  more than 50
 tons/ day charging rate.  -It applies only to each individual
 incinerator which by itself has  a charging rate of 50 tons /day.
 •It does not apply, for example,  to  a group of 3 incinerators
 which each charge at a rate of 20 tons /day.

      The Pa'D regulations apply to any new incinerator, or any
 group of new incinerators, with  a charging rats of more than 250
 tons? day if it has the potential to emit 100  tons or mere/year of
 a regulated pollutant.  The PSD  regulations also apply to any
 smaller incinerator or group of  incinerators  (  2SO tons/day
 charging rate} if it has the potential  to emit 250 tons or more
 per year.

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     The distinction  between 27SPS and ?SD wizh regard to the
treatment of groups of  incinerators arises because the two
regulations contain different rules for determining applica-
bility.  The NSPS  applies  to each "affected facility" which, in
the  case of a  group*  of incinerators,  is each individual
incinerator unit with a charging rate of 50 tons/day.  See  40 CFR
€0.50,  (1978).  PSD,  on the other hand, applies to each source,
as the  tera "source"  is defined at 40 CTR~ 52.21(b)-(4) .  ,In  the
case of a group of incinerators, the entire group is the PSD
"source".  Thus, the  charging rates and potential emission  rates
of all  incinerators within the same source are grouped for  the
purpose of determining  PSD applicabilitv.   See 40 CTR 52.21,
(1978).

     .It is possible that both NSPS and PSD may apply tc the same
new  source. .1  have developed some examples of different groupings
of incinerator units  and evaluated them with respect to BTSPS and
PSD applicability.  .X have presented these examples below:

     1)  Six new units  within the same plant and under common
ownership, each having  a charging rate of 50 tons/day.  These
units are all  exempt  from  HSPS because SJSPS applies only to each
unit with a charging  rate  of more than 50 tons/day.  PSD applies
to the  group of units if it has the potential to emit 100
tons/year because  together the units are capable of charging more
than 250 tons/day.

     2)  Two new units  within the same plant and under common
ownership, each having  a charging capacity of 130 tons/day.
These units are both  subject to NSPS because each is capable of
charging more  than 50 tons/day.   The units are subject to PSD if
they emit 100  tons/year of a regulated pollutant because- together
they have a charging  capacity of mare  than 250 tans/day.

     3)  One new unit charging 100 tons/day..  The unit is subject
to NSPS.  .It is subject to PSD only if it has the potential to
emit 250 tons  of a regulated pollutant per year.

     •In your letter,  you mentioned 3ACT requirements.  3ACT
refers  to Best Available Control Technology and is one of the P-SD
requirements.  Unless a PSD permit is  required for a source, BACT
does not apply.
     * In using the word  "group",  we  mean to convey that the
incinerators are at one site  and  under  common ownership.

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      I should point out that EPA proposed  rather  extensive
 changes to the PSD regulations  in the  Federal  Register on
 September 5, 1979.  These changes will  go  into effect after final
 promulgation.  While they would not affect  the interpretation in
 this letter, they would affect  several  Xey  definitions such as
 "potential to emit".

      I appreiate this opportunity to clarify our  regulations.
Should you have any further questions,  please contact libby
Scopino at (202) 755-2564.


                               Sincerely yours,
                               Edward  E.  Reich,  Director
                               Division  of  Stationary Source
                               Enforcement

cc: Dick Hhoads, CAQPS
    Mike James, OGC
    Enforcement Division Directors,  Regions I-X
    Air & Hazardous Materials Division Directors,  Regions I-X

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                    ENVIRONMENTAL PROTECTION AGENCY

         MEMORANDUM
         SCBJECT :  Application of PSD Review  to a Portland
                   Manufacturing Operation, Taxas Industries,  Ir.c.

         FROM:     Director, Division of Stationary Source  Enforcement

         70: :      Eloy P.. Lozano, Director
                   Air and Hazardous Materials Division
So
 1
  •o
   o
              This is in response to your me no dated September  14,  1977,
         concerning Texas Industries' proposed plans to" cons cruet
         Portland ceaent manufacturing facilities.

              We concur with your evaluation that both operations
         qualify as portland ceaent plants and, that -they will  be
         subject to the review for the prevention of significant
         deterioration (PSD).  The PSD applicability will require
         icth facilities to apply best available control technology
         for all facilities eaitting particulate matter and/or'sulfur
         dioxide.  It will also require— that separate acbient air
         quality analyses be performed at each site for particulats
         natter and sulfur dioxide, if applicable.

              If you have any questions or consents, please contact
         Hich Biondi (755-2564) of my staff.
                                  Edward E. Reich

         cc:   Dick Rhoads - C?DD
              Silce Trutna-  C?DD
                                 CONCURRENCES
 TUG!. _£
SPA
                                                             OFFICIAI—FIUS CCP'i

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SUBJECT
  FROM
    TO.
UNlTEDSTA'ISi

 14.  1577
                                          rNT-... ;-07;CTiOr« AGENC
                                                                             3'. 5
           Application of PSD  Review to  a  Portland  Cement
           Manufacturing Operation,  Texas  Industries,  Inc.
           Eloy R.  Lozano,  Director
           Air and  Hazardous  Materials  Division
           Ed Reich,  Director
           Division of Stationary  Source  Enforcement
           As  indicated in the  attached  submittal  of  August 30,  1977, Texas
           Industries,  Inc.  plans  to construct  Portland  cement manufacturing
           facilities.   The  proposed operations are unique in that a cement
           clinker producing facility will  be constructed near Hunter, Texas,
           and a finish grinding facility will  be  constructed near Clodine,
           Texas.  The  clinker  will  be shipped  by  rail from Hunter to Clodine
           where finish cement  will  be prepared.

           We  have determined that Prevention of Significant Deterioration (PSD)
           review applies.  The issue is how to apply PSD review in this instance.
           It  would seem reasonable to apply best  available control technology
           requirements to both facilities.  It would then follow that two air
           quality analyses  should be performed.

           We  would appreciate  receiving your comments on this issue by September 30,
           1977.  If you have difficulty responding by that time, please call me at
           FTS 749-3837.
           Attachment

           cc:   6AEPP
E P* Pom. 1170-6
              3 76>

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ROUTING AN D TRANSMIT! AL SLIP —
1 TO (Not*. o.'/ie» ira+ol or Italian)
Rich Biondi
a
thru
9
Ed Reich
4
Stationary Source
Enforcement

OA1K



OATC

miTIAU

""
ACTIO*

eooaoi>ATioa


"*•"
•ci eo»-
V1I11TIM
,„-.

iiuAruac
REMARKS
Pursuant to a phone conversation (memo attached)
with Rich Biondi on 11/22/77, coal preparation
plants without thermal dryers and potential
emissions of a subject pollutant of less than 250
tons/year will not be subject to a Psd review •
after March, 1978 regs are promulgated.
•
Do HOT me this fern ts • RECORD of approvals, concurrences,
disapprovals, clearances, and similar actions
FROM (*•»•• o/lw* trmtol or lociMonj
_ . * , Region V
Eric Cahen Air Enforcement Branch
OATC
11/23/77
MmC
OPTIONAL FORM
AUOU1T 1*47
CIA rntm (4terni
                                                       4J»H)U
                                                                 JMU10I
                 ioo-n.ao«

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                             .'.'KE.'.'TAL PROTECTION AGENCY
                                  Region V
                            Enforcement Division
                               TELEPHONE H5HO
TO      :
FROH    :
SUBJECT:
                                 *+*
SUK-IAKY:
    \  SetA-^n.
    \  I  •
       oV
                                                . . e,$ *C _  fjf '"  C, "  Ccc.l
                    -S»bxec*   'i
                            '
                                                     -\/
-------
             ->
           Jl" _""    " • »^ •• *<• "rfi *• J  ™ -
           ',-\..  .-; •«-jr:f.-.v..-^

                        fp£br:~.. -: — -
           ave-revxewed^your inemo of
                                                     in= which'  "-
    reraise-questions regarding the applicability of the  PSD*-
 recuiatiohs:::in-^situations- wbere a source'; is modified or--
. ccnstructcdTintdiscret.e-;increnents,--noneiof. which are   •  . •
 individually- subjeets?to-preconstruction- rev rev, but- which -.-
 resulfciiri potentiai;:jemissions greater-than 100/250     '.' •  •**
 toils'per: year whenr'.accuaula ted.  Section-52.2Kb) (2) of
• the* PSD regulations'-'defines ""major .modification" as "any
 •phyai'cair:change...^S?%^or^ch"ange_ in the method- of operation
 "of.^oc7'.«~pansioo"7of-..a- stationary' source'^, taking- into
" aceoah£raitraccoauIaCed5,Increases in! potential, emissions'
:JeT^^^hl£^es^a£tX9^^^emissions shouid^also .he. accuaur-.	
^•la"£5£!;jBe£S:fetlferaan"ei.tSe^need; "for • a". secori3rtier-'revTev    ; "~j-
:^*»»:!r-S'*s'.«?**.'5>rS+'fuiV-ttrOB^ a^ntiili^-h^ annl-farf ' «-af-»-nac<-4^kiu • »'•
     *. Your, meao also-^reqfcf%sts^".a;deteraination, as to "whether
 the ^source categpryr^pr'ijaary "alusii'atiaiinare '"reduction, plant*
 should apply  to" a--oi.ai^ involved.sol^r^jirlth extracting

-------
 alumina~:from bauxite.'-* We  understand, .from talking to
 Paul fzahnt (Region"''TIT/' that the-Region-'II source in question
 wiH,-have'rpotential"'emissions ouch greater than 250 tons per
 year-'rand'.will be»-subject to. PSD --review, regardless of-'whether
 itr-isr~considered~a-'primary aluminum.-ore reduction plant"
 we=3 further discussed^  this  question with _the Control Programs •
-DeyelopaenfDivisioir"<.(CPDD-)-in-an effort.-.to determine .whether
.the>.ica,'te%or7>%waa*'Izit'ended  to" include*-such • a sourca.'• In."
 ligh't^of.: the factijthat, such a.determination, is-not-critical^
 in,-jappixing. ^the: regulations-to. the-5Jlegion II source In  ques-
 tion^CPDD would'.prefer to. resolve-it"-after further con-'
 sideratipnv.- We-'will^advise you onceva deterainatioh-
 has 'been-made»

      Pinal-ly your^asked" whether, a pharmaceutical manufacturing
 plant,should be»'considered'a. "chemical process plant".   We-"
 also--.discussed . this^question with CPDD-and reached^ .the  con.—
 elusion-that a  pharmaceutical manufacturing operation-should
 be considered a chemical process plant.

      Libby Scopino-.-( 755-2564) of my staff will be in con-  •
 t act;, with you regarding the. final interpretation of .the
 emissions.accumulation provision and the interpretation of
 "primary •aluainuat ore reduction plant"-  Please contact
 her if you have any^ -additional questions.
                           Edward E. Reich
 cc:  Mxke"Zrutna".
      Peter Wvckoff
      "Paul-'Kahn
 bcc:  Rich Biondi
       Dave•Rochlin
 DSSE/EN-341:LScopino:ncb:x52564-: 7/11/78 :Rm32Q2

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                              -I 5 1979

MEMORANDUM

SUBJECT:   Definition of Source

FROM:      Director
           Division of Stationary Source Enforcement

TO:        Diana Dutton, Director
           Enforcement Division,  Region VI

     This is in response to Howard Bergman's memo of
January 9, 1979, requesting a determination as to whether
the  International Paper Company's  paper mill and the
Arizona Chemical Company's plant,  both located on the
same piece of property in Springhill,  Louisiana, consti-
tute a  single source or two separate sources.  The Arizona
Chemical  Company is a joint venture half owned by the
International Paper Company and  half owned  by the American
Cyanaoid  Company.  The piece of  property on which both
plants  are located is owned by  International Paper.

     The  PSD regulations define  "source" as,

           any structure, building, facility, equipment,
           installation, or operation (or combination
           thereof) which is located on one  or more con-
           tiguous or adjacent properties and which is
           owned or operated by  the same person (or by
           persons under common  control)."  (43 PR 26404,
           June 19, 1978.)

     The  PSD regulations offer  no  guidance  on what is meant
by "common control".  However,  the newly amended Inter-
pretative Ruling states on page  3279 that for purposes of
both the  Interpretative Ruling  and PSD, the guidelines
for determining common control  are as  follows:

     "For the time being, determinations of what entities
control,  are controlled by, or  are under common control
with, the applicant will be made on a  case-by-case basis.
However,  to save time and resources of both applicants and
decision  makers, EPA proposes to establish  criteria for
determining issues of common control.   For  example, any  person

-------
with a  ten percent votinc  interest  in  an  entity, or with  the
power to make or veto decisions  by  the entity  to implement
major emission-control measures, might be deemed to control
the entity.  Such criteria would also  be  used  for determining
whether facilities are part of the  sane source..."  (44 PR
3279, January 16, 1979.)

     We must decide  this issue case-by-case  until EPA  has
completed review of  the public comments submitted in regard
to the  amended Interpretative Ruling,  and has  taken final
action  on it.  It is my feeling  that a person  who has  as
much as 50% voting interest in an entity  should be considered
to control the entity.  Therefore,  until  the Agency responds
to the  public on this issue, a person  with 50% voting
interest in an entity will be considered  to  have control.

     If the International  Paper  Company has  50% voting
interest in the Arizona Chemical Company, it can be con-
sidered "in control* for PSD (and IR)  purposes, and the
International  Paper mill  and Arizona  Chemical plant,  both
located at the Springhill, Louisiana complex,  can be considered
as a single source.

     I  will inform you immediately  of  any EPA  response to
any public comment on this issue.   The period  of public
consent on this issue will end March 19,  1979.

     Should you have any further questions,  please contact
Libby Scopino at FTS 755-2564.
                               Edward E.« Reich
cc:  Darryl Tyler,  CPDD
     Hike  James,.  OGC
     Paul  Traina,  Region  IV
     Kent  Berry,  OAQPS
DSSE:EN-341:LScopino:neb:3202:3*13/79

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                  UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                                                          :.:o
                                                                         x-
SUBJECT.
 V •-» • •  -'    —                                                        ,—y -
                                                                  .J'S-A-sz^i-e,
                                                                     >
PSD Determination - Definition of Source


Howard G. Bergman
   FROM.Di rector
       Enforcement  Division (-oAE)

     T0.Edward  E.  Reich
       Director,  Division  of
       Stationary Source Enforcement  (EN-340)

       We  have been contacted by the  International  Paper  Company  (IP)  concern-
       ing proposed construction at their  Spnnghill,  Louisiana,  paper mill
       complex.   The pulp  and paper plant  is being  shut down.  The  container
       plant and  finishing and shipping  operations  will continue.   IP  proposes
       to  construct a wood products plant  at the  complex.   IP  plans to apply
       for a PSD  permit  for the wood  products  plant.   Because  there will be a
       net decrease in emissions,  IP  will  be exempt from  the air  quality anal-
       ysis and the monitoring requirement.

       At  the  complex on IP's land,Arizona Chemical Company makes a product
       from black liquor soap produced at  other IP  pulp and paper mills.
       Arizona Chemical  is a joint venture, half  owned by  IP.  Arizona Chemical
       is  independently  managed from  IP.   An IP steam  boiler has  supplied steam
       to  Arizona Chemical but this boiler will be  shut down.  Arizona Chemical
       plans to build its  own boiler.  This boiler  will be subject  to  the PSD
       regulations  by itself.

       IP  claims  that the  Springhill  mill  complex should  be treated as one
       source  - that Arizona Chemical is part  of  the Springhill mill.  This
       would allow  IP and  Arizona  Chemical to  make  one PSD application and re-
       ceive one  permit  and, more  importantly, use  the decrease in  emissions
       of  the  old boiler against the  new boiler so  that the new boiler would
       also be exempt.from air quality analysis and monitoring.   This  will
       make a  difference of several months in  when  the PSD perait(s) would be
       issued.

       It  appears that the issue turns on  the  interpretation of "source" in
       the PSD regulations:  are there two sources  here or only one?   Attached
       is  the  information  provided by IP.

       We  have learned that Region 4  has an almost  identical situation with
       IP  and  Arizona Chemical.  Therefore, we believe that your  office should
       be  involved  in the  determination.   If you  have  any questions, please
       contact Jim  Veach of my staff  at  729-2760.

       cc: EPA - Region 4
            Phaff (4AAH-AP)

. El>» conn l}20-« i*SV 3-7«r                                     '''•'

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            flECORD OF
         COMMUNICATION
                                     PHONE CAU.  Q DISCUSSION   ^ F'6I-O TRIP
                                                 (Rwotd of Item eluekad «bor«>
                                  FROM:
                                   DATE
                                                                 TIME
 SUBJECT
SUMMAMV Of COMMUNICATION

^<^*£
»-. -i
v-
,£?£»£
              ^T"
lYj-^S
sY r? a
                                                            y

                                                         '/
eena.usioHi. AcnoirTAKCN on MKOUINKO
                                                  UNTIL
                                                            n CMMAUSTCO.

-------
  DATE-



SUBJECT
                 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                                 3EGION II
                                                           2.14
           L 2 S r&:
Request for PSD Determination on Babylon 2
  FROM-
    TO-
  THRU:
William K. Sawyer, Attorney
General Enforcement Branch

Edward E. Reich,  (EN 341)
Director, Stationary Source Enforcement
   Division

Samuel P. Moulthrop, Acting Chief
General Enforcement Branch
         This office has recently become aware of the possible re-
         opening in New York State of three incinerators which had
         shut down at different times over the past six years.
         Region II requests a determination on whether one of these
         incinerators, Babylon incinerator 12, would be subject to
         Prevention of Significant Deterioration ("PSD")  regulations.

         Babylon #2 is a municipal incinerator capable of charging
         more than'250 tons of refuse per day and will emit more than
         100'tons per year of particul'ate matter.  (See PSD/97
         dated December 19, 1979 and 40 CFR 52.2Kb) (1)) .  In 1974,
         EPA issued a NOV to the-source for violating a New York
         State regulation relating to the permitted opacity of smoke
         emissions from incinerators.  In April 1975, EPA ordered the
         incinerator to close, and it shut down that summer.  Since
         then, the source has remained closed and it has been deleted
         from the State emissions inventory.  Upon the basis of this
         information, Region II believes the shutdown must be deemed
         to be permanent and that Babylon #2 is a new source. (See
         September 6, 1978 memo on "PSD Requirements" and the April
         10, 1978 "Portland Cement Plant PSD Determination" — both
         were sent frcm the Director of DSSE to Region II.)

         According to Title 40, Code of Federal Regulations (CFR),
         Part 52.21 [1979], "no major stationary source or majox
         modification shall be constructed unless the requirements
         of (j)  through (r) of this section, as applicable,  have been
         met."  The town may argue that there is no construction here
      1J20-6 [R... 3-76)

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and PSD  regulations  are  not  applicable.   Current  regulations
define construction  as "fabrication,  erection,  installation, or
modification of  a  source."   §52.2Kb) (7) .   This definition is
expected to change under the new PSD  regulations.   According
to the latest  draft  of the new  regulations,  construction is
defined  as, "any physical change or change  in  the method of
operation (including fabrication,  erection,  installation,
C. i-•——— ^.-Cr./ C— r..»'ii^^.. ««C»Cr./  w_  <^>. e^u.^^^C^iS °
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          UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                        WASHINGTON  DC  20460
                           AUG  8 1930
                                                       Office of
                                                       Enforcement

MEMORANDUM

SUBJECT:  PSD Applicability Determination:  Babylon 2
TO:        William K.  Sawyer,  Attorney
           General Enforcement Branch, Region II


     This  is  in response  to your  memo dated July 28,  1980,
concerning the  Babylon  incinerator f2.   Babylon  *2  is a municipal
incinerator capable of  charging more  than  250 tons  of refuse per
day and will  have the potential to emit  greater  than  100 tons  per
year of particulate matter.   The  incinerator has been shutdown
since  1975 and  has been removed from  the state's emission
inventory.  The source  now wishes, to  reopen and  the question is
what are the  implications as  to the PSD  permitting  requirements.

     Consistent with  an earlier determination dated September  6,
1978,  (copy attached),  a  source which has  been shut down would be
a new  source  for PSD  purposes upon reopening if  the shutdown was
permanent.  Whether a shutdown was permanent depends  upon the
intention  of  the owner  or operator at the  time of the shutdown as
determined from all the facts and circumstances,  including the
cause  of the  shutdown and the handling of  the shutdown by the
State.- Under the facts you have  given us,  we would presume that
the shutdown  was permanent, since it  has lasted  for five years,
and the State'has removed the .-incinerator  from its  emissions
inventory.  Consequently  unless the owner  or operator of the
source were to  rebut  that presumption, we  would  treat the source
as a new source (or modification  if it occurs at an existing major
source) for PSD purposes.  Babylon #2 will be required to meet the
BACT standards,  but will  not  necessarily have to meet a limit  at

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least as  stringent  as  40  CFR 60.52,  unless  this  facility  is  itself
subject to  the  requirements  of  NSPS.   BACT  sets  NSPS  as the
minimum level of control  when such- source is  subject  to the  NSPS.
This means  that the individual  source  would have to be subject to
NSPS not  just that .NSPS applies to  the source category.

     This response  was completed with  the concurrence of  the
Office of General Counsel, should you  have  any additional
questions or coranent-.s.
                                    1/J'JjL
                                   wTdward  E.  Rei$h

cc: Peter Wyckoff
    Jim Weigold

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                       UNITED STATES ENVIRONMENTAL =ROTECT!ON AGENCV
            MZ :   ,330                     REGION II                          '     l^

           Memo Dated July 28, 1980 from William Sawyer to Edward Reich Concerning /   &
           Applicability of PSD Regulations to the Babylon $2 Incinerator

   PROM    Charles S. Warn
           Regional Administta1
                            \J
     TO    Richard D. Wilson  (EN-339)         /        Michael James (A-133)
           Deputy Assistant Administrator for          Associate General Counsel
              General Enforcement                      Air,  Noise & Radiation Division


           Region II is conducting negotiations with the town of Islip and the New
           York State Department of Environmental Conservation on the  issue of re-
           opening several incinerators to burn solid waste  presently  being disposed
           of in a local landfill.  Pursuant to these negotiations,  William  Sawyer
           of the Enforcement Division in Region II has communicated by telephone
           with Rich Biondi and Janet LittleJohn, both of the Division of Stationary
           Source Enforcement, as well as to Edward Reich by the above-referenced
           memorandum.  The issue he has raised is whether one of the  incinerators
           (Babylon #2)will be required to meet PSD regulations upon reopening.  We
           are operating under serious time constraints since the landfill is.a
           severe health and environmental hazard.  I hope that we will be able to
           receive a determination from headquarters on this issue by  no later than
           Monday, August 11.
EPA Form 1320-4 
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                        £
         UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                       WASHINGTON. DC.  20450
»• PS: r

                         SEP   6 1975



                                                 OFFICE OF ENFORCEMENT

 MEMORANDUM
  SUBJECT:   PSD Requirements

  FROM:      Director
            Division of Stationary Source Enforcement

  TO:        Stephen A. Dvorkin, Chief
            General Enforcement Branch
            Region II

       In response to your memo dated June 29, 1978, we have
  consulted with the Offices of General Counsel and Air
  Quality Planning and Standards and provide the following
  responses to your questions regarding the applicability
  of several PSD requirements.

       Q - l(a).  Is a source which shut down approximately four
  years ago because of an industrial accident, and which was
  not and is not required to obtain a permit under a SIP,
  subject to the requirements of PSD?  This source was not
  subject to PSD requirements prior to March 1, 1578.

       A - This is a question which we have not previously
  addressed, but we believe that EPA policy should be as
  follows.  A source which had been shut down would be a new  source
  for PSD purposes upon reopening if the shutdown was permanent.
  Conversely, it would not be a new source if the shutdown was
  not permanent.  Whether a shutdown was permanent; depends upon
  the intention of the owner or operator at the time of  the
  shutdown as determined from all the facts and circumstances,
  including the cause of the shutdown and  the handling of  the
  shutdown by the State.  A shutdown lasting  for two years or more,
  or resulting  in removal of the source from  the emissions in-
  ventory of the State, should be presumed perpfenent.  The
  owner or operator proposing  to reopen the source would have
  the burden of showing*that the shutdown  was not permanent,
                                      Si

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and of overcoming  any presumption  chat  it  was.   Under  the
facts you have given us, we would  presume  that  the  shutdown
was permanent, since it has already  lasted about four  years.
Consequently, unless the owner or  operator of  the source
were to rebut that presumption, we would  ttfinat  the  source
as a new source  fpr PSD purposes.

     We assume that your statement that the source  was not
subject to  the PSD regulations in  effect  before March  1, 1973,
means that  it was  not in one of the  nineteen source cate-
gories listed in Section 52.21(d)(l) of those  regulations.
A proposed  new source which was not  in  one of  those categories
would be subject to the PSD regulations promulgated on June 19,
1978, unless  (1) all required SIP  permits  had  been  obtained
by- March 1, 1978,  and (2)  construction  commences before
March 19, 1979,  is not discontinued  for 13 months or more and
is completed.within a reasonable time.   See  §52.21(1)(3),
43 FR 26406.  Here, all required SIP permits were obtained by
March 1, since none was required.  Consequently, the source
would not be  subject to the new regulations, assuming  that the
reopening is  commenced before March  19, 1979,  is not discon-
tinued for  more  than 18 months and is completed within a
reasonable  time.

     If we  were  to treat the source  as  an  existing  source for
PSD purposes, we would also conclude that  it is not subject
to the new  regulations.  No source on which construction com-
menced before June 1, 1975, would  be subject to those  reou-
lations.  See Clean Air Act §§168(b), 169(4);  40 CFR
52.21(d)(l)  (1977).  Here,  since the source was in  operation
about 4 years ago, construction on it presumably commenced
before then,  well  before June  1, 1975.   Hence,  it would
(presumably)  not be subject to the new  regulations.

     Q - l(b).   Would your answer  to l.a., above,, change if
the source  is or was required  to obtain a SIP permit?

     A - If the  source shut down temporarily,  it would not be
required to obtain a PSD permit  in order to start up.
       Application of this rule requires special guidance
for multifacility sources which construct in phases.   Generally,
if one phase  of  a multifacility source commenced construction
by June 1,  1975,  all other mutually dependent phases  specifi-
cally  approved for construction at the same time will also be
"grandfathered".   On the other hand, each independent facility
must have  commenced construction individually by June 1, 1975,
to have achieved  grandfather status.  See 43 F?." 26396,
19 June 1578.

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On the other hand,  if  the  source  shut  down  permanently,
it would,  upon  reopening,  be  required  to  obtain  a  PSD permit
unless the following  two conditions  were  met:  1)  the SIP
permit was obtained prior  to  3/1/78  and 2)  any construction
necessary  for reopening is commenced prior  to 3/19/79,  is  not
discontinued for  18 months or more and is cfTSpleted within
a reasonable time.

     Q - 2.  Is the EPA required  in  all cases to forebear
from issuing a  PSD  permit  until a SIP  permit has been issued
or is such forebearance required  only  when  the source is
subject to the  "Interpretative Ruling" (41  FR 55524, December 21,
1976)?

     A - EPA should refrain from  issuing  a  PSD permit prior
to' issuance of  a  SIP  permit only  in  cases where  the source
is also subject to  the Interpretative  Ruling.  (See 43  FR
26402, column 3.)

     Q - 3.  In the evaluation of BACT, does equipment
reliability play  a  part, i.e., should  a unit capable" of 80%
control with a  20%  downtime,  be preferred to a unit capable
of 90% control  with a 35%  downtime?  Can  backup  equipment  be
required for BACT purposes?

     A - Questions  concerning BACT should be addressed  to
the Control Programs  Development  Division in Durham, N.C.

     Q - 4.  For  the  purpose  of determining what constitutes
"air pollution  control equipment," what  is  meant by the
phrase "... normal  product  of  the  source  or its  normal
operation"?  (43  FR 26397, mid.  col.,  June  19, 1978).   Does
•that refer to  the quantity or quality  of  the product or
both, i.e., if  a  baghouse  collects 100% of  the product, a
settling chamber  collects  20%, and without  some  device  no
product is collected,  what is deemed to  be  "air  .pollution
control equipment"?

     A - If a  source  (such as one which  produces zinc-
oxide) cannot  capture any  of  its  product  without the use of
some type  of control  device,  the  least efficient control
device used in  the  industry will  be  considered vital  to the
process.   For  example, if  sources in such an  industry
typically  employ  either  settling  chambers or  baghouses,
potential  emissions will be calculated as the emissions from
such a source  with  a  settling chamber  installed.

     Q -  5. Do the provisions of Section 167 of the  Clean
Air Act, which  refer  to  issuance  of  an Order  and seeking  in-
junctive relief for PSD  violations,  create  enforcement
authorities independent  of those  created  in Section  113 for
SIP violations, or  do they simplv incorporate  Section  113  sv
reference?

     A - We believe tnac Section 157 provides  tr.e  Agency

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with enforcement  authority which is not necessarily other-
wise provided by  Section 113.  The Office of Enforcement is
drafting guidance on  implementation of Section 167.  This
guidance should be completed shortly,  in t.He interim, the
Agency should enforce against violations of the PSD require-
ments under  the mechanisms established by Section 113, generally.
There is one important situation, however, in which resort to
Section 167 may be necessary.  This would occur when a state
had issued a permit that EPA considered to be invalid.  In
this situation, ve believe that Section 167 provides the
Agency with  the authority to halt the construction of the
source directly,  without first having to resort to the
cumbersome process of seeking a judicial declaration that
the state permit  is invalid.  (See 42 FR 57473 (1977)).  In
this respect, Section 167 provides the agency with authority
similar to that provided by section 113{a)(5) and (b)(5) to
prevent sources with  invalid permits from constructing in
nonattainment areas.  Please note, however, that no delega-
tions for enforcement of the PSD requirements have keen
signed yet,  and so any action under §167 would have to be
taken in close coordination wijih DSSE, and any §167 orders
would have to be  signed by the Administrator.

     If you  have  any  further questions on these issues,
please contact Libby  Scopino at FTS 755-2564.
                               Edward  E.  Reich

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         ..  Jar-.»: ; -.- .:rr
          tv ar.i •l...:".i;~i...
                                                           ^V^c
                                                                 .  - ,
                                                           /" •'***' »**•*'•-
                    i-:s:-:o ?---•: DUM or L;V?

                          FACTS

      Your nemorar.'-ur. of Tabruary 2, 1573, briefly discusses
tha  issue of the rscpar.iiic  of e::i3~inc plants  which have
basr.  closacl for c. parior. of tir.3.  Sere have closed because
of ire!:  of cerjar.-:" lz.  il'.sir ^rc-^crs, otiiirs or.arr.ta or. z>
scr.rcr.il basis.
of -ST.: source p
                  You hrvs  ir.ruirc;! r£r5.riir.g  tlV; applicability
                er^orr.r.r.ca  szar.d=r:lo zo zl*.«se  sourc'ss.

        •_• a sourr.-.
        ..ta of a -
         class of r-j/.
         es operatio
                        .  •::.t  i.: t::iscer.ca pri'or to the pro-
                        rr2 parfornanca standard (applicable
                     rcis; bs rvi:;==r.acl to  tr.a standard i:har.
                        cllsv:ir.r tho proposal?
      No,  the source <.:ould  not be a "new sourca" within the
meaning of §111 (a) (2) of the Clean «ir Act.

                        DISCUSSION

      The sources which your memorandum describes are "existing
sources", not "new sourc=s" which raay.be regulated under  §111.
Tha section defines "new source" as f ollo-.rj :

           [A]ny stationary source, the construction
           or modification  of which is commenced
           after the publication of regulations (or,

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 think this could Iecitir,at2ly bs charec-srized  as
 "fabrication, erec-ion,  or installazier, of an affected
.facility" .Jl/  In acLclition, r.o nodif ication v/ithin  the
 ~aanir.r cf ths secticr. is ir.vol"2d, sir.cg it appsars that
 r.iithar the source's  physical structure nor ius r.azhod
 cf c-pc-'aiicr. ir. ch-mr-::! frorr. its ccr.J'.icio:': ur.der previ
 ocsrstior.s.
      Which is  tha  definition of "construction"  under
      EPA regulation 40 CFR 60.2(g).

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PROM
  T0
                UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                                 HZGION II

          JUL 1 6 !32fj

SUBJECT   Request for PSD Determination on Babylon 2
                                                                2.14
         William K. Sawyer,  Attorney^, '•  "*
         General Enforcement Branch •

         Edward E. Reich, (EN 341)
         Director/ Stationary Source Enforcement
            Division
  THRU:   Samuel P. Moulthrop,  Acting Chief
         General Enforcement Branch
         This office has recently become aware of the possible re-
         opening in Hew York State of three incinerators which had
         shut down at different times over the past six years.
         Region II requests a determination on whether one of these
         incinerators, Babylon incinerator #2, would be subject to
         Prevention of Significant Deterioration ("PSD")  regulations.

         Babylon #2 is a municipal incinerator capable of charging
         more than-250 tons of refuse per day and will emit more than
         100 tons per year of particulate matter.  (See PSD/97
         dated December 19, 1979 and 40  CFR 52.2Kb) (1)) .  In 1974,
         EPA issued a NOV to the source  for violating a New York
         State regulation relating to the permitted opacity of smoke
         emissions from incinerators. In April 1975,  EPA ordered the
         incinerator to close, and it shut down that summer.  Since
         then,  the source has remained closed and it has been deleted
         from the State emissions inventory.  Upon the basis of this
         information. Region II believes the shutdown must be deemed
         to be permanent and that Babylon #2 is a new source. {See
         September 6, 1978 memo on "BSD  Requirements"  and the April
         10, 1978 "Portland Cement Plant PSD Determination" — both
         were sent frcm the Director of  DSSE to Region II.)

         According to Title 40, Code of  Federal Regulations (CFR) ,
         Part 52.21 [1979], "no major stationary source or majo:
         modification shall be constructed unless the requirements
         of (j)  through (r) of this section, as applicable, have been
         met."   The town may argue that  there is no construction here
 PA Fw» 1330-6 (H... 3-74)

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and PSD regulations are not applicable.  Current regulations
define construction as "fabrication/ erection, installation, or
modification of a source."  §52.2Kb) (7) .  This definition is
expected to change under the new PSD regulations.  According
to the latest'draft of the new regulations, construction is
defined as, "any physical change or change in the method of
operation  (including fabrication, erection, installation,
demolition, or modification) of an emissions unit at a stationary
source whicn would result in a change in the potential to emit
of the unit."  (See page 245.)   The town will be installing
a baffle wall and rebricking a furnace in the incinerator.  In-
the view of Region II, this work plus the recommencement of
operations at the source satisfies the "construction" require-
ment.

Upon the basis of all the above, Region II believes Babylon -2
is subject to PSD, and, therefore, under 40 CFR 52.21(j), the
source is required to meet best available control technology
(BACT) standards, which will be at least as stringent as the
standard of performance set forth in 40 CES 60.52.  We would
like confirmation of this conclusion and any further legal
authority that supports this position.


cc:  Janet LittleJohn, (EM 341)

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                     WITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                   OGT  3
       MEMORANDUM

       SUFJECTs  PSD and NSPS Applicability  to  a  Reactivated  Source

       FROM:      Director
                 Division of Stationary  Source  Enforcement

       TO:        Sandra 6. Gardebring, Director
                 Enforcement Division, Region V


            This is in response to your nemo of September 22,  I960,  in
       which you requested clarification of  EPA's policy concerning PSC,
       NSR  and NSPS applicability for reactivated sources.

            According to your merto, the  source  in question  (SKE  Cement,
       Inc.)  has installed and begun opeTatinc  a  rotary cenent kiln which
       had  been shutdown in 1976.  After shutdown in  1976,  the emission5
       front the kiln were removed from the state's emissions  inventory and
       the  owner issued a statement that the closure  was permanent.  The
       issue  of whether the kiln, upon reactivation is subject to  PSD or
       KEF  review or KSFS, must nov be addressed.

            Consistent with previous PSD determinations, (See Attachment A)
       and  the purpose of the PSC program, the  reactivation of the  kiln  is
       subject to PSD review, since its 1976 shutdown was deemed permanent.
       For  the same reasons that the source**1 s emissions must  be  assessed
       under  PSD, the kiln would also be subject  to New Source Review.

           Under NSPS, the kiln would be considered  an existing source.
       Reactivation would not subject the kiln  to NSPS unless the  kiln is
       modified or reconstructed, as defined in 40 CFE 60.14  and 15,
       respectively.  This determination is  also  consistent with previous
       Agency policy (See Attachment E).
                                    CONCURRENCES
*«BOL
                 iol'iHo
                           Ofj^'j-^
     1330.1 (12-70)
                                                                  OFFICIAL FILE COPY

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     If  you  have  any  questions  regarding this  determination, please
contact "Janet  Little John  of siy  staff  at "755-2564.
                                 'Edward  E.  Reich

Attachments

cc:  -Jiir Weigcld  (CACPS)
     Peter Wyckoff  (OGC)
     Mike 'Janes (OGC)

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                                                                                  2.15
                 UNITED iTATESlilviRONM&NlAL PROTECTION AGENCY
                                            REGION V

            2  2 198C

•JBJECT   PSD and NSPS Applicability to a Reactivated Source
        Sandra S. Gardebring
        Director, Enforcementtrtvisibn

   ro   Edward E. Reich, Director
        Division of Stationary Source
          Enforcement (EN-341)

        Region V requires clarification concerning United States  Environmental
        Protection Agency (hereinafter "U.S.  EPA") policy on PSD  and  NSPS  applicabi-
        lity to a reactivated source.

        This source, which is presently owned and operated by SME Cement,  Inc.,
        8282 Middlebranch Avenue, Middlebranch,  Ohio,  Division of Standard Machine
        & Equipment, Inc., was shutdown on December 15,  1976, pursuant  to  a U.S.
        EPA Consent Order.  The Order required Flintkote Company, the former  owner,
        to cease operations of rotary cement  kilns #1, #2 and #3  and  cease operation
        of kiln #4 unless it was operated in  compliance  with Ohio Air Pollution
        Control Regulations concerning particulates.   Prior to shutdown, kiln #4
        was operated as a dryer.

        SME Cement, Inc. purchased the facility  in November 1977, and received a
        permit to Install on April 24, 1979,  from the  Ohio Environmental Protection
        Agency (hereinafter "Ohio EPA").   The permit allowed SME  Cement, Inc. to
        install rotary cement kiln #4. The kiln was reactivated  and  began operations
        approximately May 1, 1980, without obtaining a PSD applicability determination
        or permit, or a NSPS applicability determination.

        On September 4, 1980, the Director of the Enforcement Division, Region V,
        issued a notice of violation  to SME Cement,  Inc.   SME Cement, Inc..was
        found to be in violation of PSD Regulations, 40  C.F.R.  §52.21,  as  amended
        at 43 Fed. Reg.  26403(1978),  NSPS, 40 C.F.R. §60.7(a),  and Ohio Air Pollution
        ControTReg'uTations AP-3-07 and AP-3-12(B),  (Ohio Ad. .Code 3745-17-07 and
        3745-17-11, respectively) dealing with the control  of particulate  emissions.
        A conference with officials and attorneys  of SME  Cement,  Inc. is scheduled on
        September 29, 1980, to discuss the notice  of violation.   During the conference,
        it is expected that SME Cement, Inc.'s representatives  will contest the PSD
        and NSPS applicability determinations.

        This source was considered to be  a new source  for'PSD purposes  pursuant to
        a September 1978  memo from the Director of the Division  of Stationary Source
        Enforcement (hereinafter "DSSE")  to Stephen A. Dvorkin, Chief, General
        Enforcement Branch, Region II.  The memo stated that  a  reopened source is con-
        sidered a new source if the shutdown  had been  permanent.   Facts relied on in
        categorizing the shutdown as  permanent include a  period in excess  of three
        years during which the source failed  to  operate,  the  Ohio EPA Emissions
        Inventory System Point Source Report  for 1979 which  listed no emissions
        for this source, and a statement  by a Flintkote Comoany official that the
        closure of kiln  #4 was permanent.

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Ohio EPA has consistently classified this source as a new source  and  required
SME Cement, Inc. to obtain a permit to install, rather than a permit  to operate.

Region Y determined that SME Cement, Inc. is a new source for both PSD  and  the
NSPS applicability as definitions of "construction" includes fabrication,
erection, or installation for both PSD and NSPS.  40 C.F.R.  §52.21(b)(7)
and 40 C.F.R. §60.2(g).  These PSD regulations were in effect when SME  Cement,
Inc. commenced construction. .The definition of construction in the amended
PSD regulations has been expanded to include "any physical  change in  the
method of operation....which would result in a change in  actual emissions".
45 Fed. Reg. 52676(1980)(to be codified in 40 C.F.R. §52.21).

Region V has contacted various headquarter1 s staff members  and received con-
flicting opinions concerning this matter.  Please clarify the applicability of
PSD, NSPS and new source review to this source within the usual ten day turn
around period.

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       UNITED STATES ENVIRONMENTAL PROTECTION AGENCY        ,

                                = £ 3 IC N V
                            343 i
                                  CEOflCi*3C3*S
RE?: 4AB-AF
Dear State/toe?1 Director:

At the State Air Directors' meeting last fall, a request was made for EPA to
prepare and distributee regular sunnary of PSD policy determinations made by
Region IV.  Enclosed is the first such summary.  The frequency of future
summaries will depend on the number of determinations, but will probably be
monthly.  The summary will be in addition to copies of any Headquarters'
letters or means we send you.

I hope th-se summaries assist your new source review program.  Any questions
or suggestions should be sen't to Roger Pfaff  (404/881-3286) .

Sincerely yours,
Thomas M. Devine
Director
Air and Hazardous Materials Division

Enclosure

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                                  i?A Region IV

                  Policy Determinations Regarding PSD Questions
1.  11/13/80

    Question:



    Answer:
    Reference:
An engine manufacturing plant sprays VOC-contaminated
wastewater  into  the  air to  dispose of VOC.   Is the
activity, if  new,  subject to  PSD?

If the source has  nonfugitive emissions  greater than 2SO
TPY, the new  emissions which  are  fugitive would count in
determining PSD  applicability.  The only  place fugitives are
given special treatment is  in determining if the source is
subject to  PSD.

$S2.21(i)(4) (vii)
2 . 11/24/80

    Question:
    Answer:
    Reference:
A major source makes a physical  change  which increases
emissions, but has offsetting  reductions  elsewhere  at the
same time.  In the past  5 years,  however,  there  have  been
other increases such that the  net result  over 5  years is
greater than de minimis.  is the new physical change
subject to PSD.

No.  The proposed change must, by itself,  result in a net
increase greater than de minimis in order to be  subject to
PSD.

1/22/81 memo, DSSE to Charles  Whitmore, Region VII.
3.  12/2/80

    Question:
A major source wishes to take two actions:  1)  increase
production at a previously PSD-permitted  emission  unit;  2)
Build a new emission unit with less than  de minimis
emissions.  Emissions of fluorides from the two  actions,
when added together, are greater than de  minimis and  occur
within the contemporaneous time frame.  Does  the physical
change (new unit) trigger PSD review because  of  the change
in actual emissions at the previously permitted  units being
greater than de minimis?

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    Answer:
    Reference:
No, unless the production rate of the previously permitted
unit was limited in the permit. . S 52. 2Kb) (21) (iii) allows
allowable emissions to be presumed to represent actual
emissions for new sources.  Therefore, the increase in
production at the PSD source is not an increase in actual
emissions.  Also, due to a 1/22/81 policy memorandum, the
new unit by itself must be greater than de minimi s to
trigger review.
SS2.21(b)
1/22/81 memo, DSSE to Charles Whitmore, Region VII.
4.  12/2/80

    Question:



    Answer:
    CHANGE:
    Reference;
In the previous example, what  if the previously permitted
source were an existing source which did not have  a  new
source construction permit under the SI??

In this case, the proposed unit would be subject to  PSD,
since the net increase calculation would include the
production rate increase from  the existing  source.   After
the new PSD permit is issued,  the "slate is wiped  clean',
and only future increases and decreases would count.

As of 1/22/81, this situation would also not trigger PSD,
because the physical change  (new unit) is not, by  itself,
greater than de minimis.
1/22/81
DSSZ to Charles Whitnore, Region VII.
S.  12/2/80

    Question:

    Answer:



    Reference:
Is an iron foundry one of  the  28  PSD  categories?

Yes, it is a secondary metal production plant,  if it uses
scrap metal to produce iron, even if  the metal  is poured
into molds.

SS2.21(b)(l) (i) (a)
6.  12/2/80

    Question:
(Offset Policy)  A modification  is  subject to the Offset
Policy.  In addition  to  the proposed  SO  TFY emission
increase, the company had  a 500  TOY increase from an
unreviewed production rate increase 3 years ago.   Do
offsets have to be obtained for  the full 550 TPY?

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                                       -3-
    Answer:        Yes, unless  the  500  TPY was  from a new source with a SIP
                   construction permit  whose  permit conditions did not
                   prohibit the increase.

    Reference:     Part 51, Appendix S, Section II.A.7.(iii).
7.  12/12/80

    Question:


    Answer:



    Reference:
Is a whiskey distillery one  of  the 28 categories (chemical
process plants)  listed  in  S52.21(b)(1)(i)(a)?

No.  A chemical  process plant  is any establishment in Ma]or
Group 28 of the  SIC  Code.  Beverage distilleries are in
Major Group 20.
8.  12/12/80

    Question:
    Answer:
    Reference:
A major stationary source wishes  to make a physical change
resulting in a 15 TPY  increase  in particulate.   Less than 5
years ago, the source  had a production increase  (not
subject to PSD) resulting in  a  SO TPY increase in SC>2.
Is the proposed increase subject  to PSD?

No.  The triggering  increase  must be of the same pollutant
as the one for which a significant increase results.  Also,
due to a 1/22/81 policy memo, the proposed physical change
must be greater than de minimis by_ itself.

1/22/81 memo, DSSE to Charles Whitmore,  Region VII.
9.   1/12/81

    Question:
An existing source is operating  in compliance  with  the
conditions of its operating permit.  The  operating  permit
conditions are identical to the  requirements stated in  the
S.IP for the source.  The source  was  in  operation  long
before the New Source Review Procedures were incorporated
into the SIP.

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    Answer:
    Reference:
The source owner proposes to construct a new emission  unit
at the source and to simultaneously offset  the  increased
emissions by reducing emissions  (through installation  of
emission control equipment) at an existing  unit at  toe
source.  Emissions from the proposed new unit will  be
completely offset for all pollutants emitted except sulfur
dioxide which will increase by a significant amount, thus
subjecting the proposed construction to PSD review.  The
reduced emission rate for the existing unit will  be made a
condition of the unit's operating permit.   The  proposed
construction and simultaneous offsetting reduction  of
emissions at the existing unit will be subject  to public
scrutiny during the 30-day comment period required  as  part
of the PSD review.  Will the proposed emission  reductions
at the existing unit be "federally enforceable'?

No.  But if appropriate conditions are included in  the
construction permit for the new unit  (requiring the
existing unit to reduce emissions) , this situation  would be
Federally enforceable.
552.21(b) (3)
10. 1/12/81

    Question:
         Answer:
A source is operating in compliance with  the conditions
stated on ita operating permit.  The conditions of  the
operating permit are identical to  the conditions  contained
in the construction permit which was issued for the source
in accordance with the New Source  Review  procedures of the
SZP at the time of issuance.

The source owner proposes to  reduce emissions  to  a  lower
level SMi* is currently allowed under the operating permit
by some method such as installation of more efficient
control equipment.  The source owner requests  that  the
operating permit be revised to limit source emissions to
this lower emissions level and proposes an appropriate
method (stack testing, continuous  monitoring,  etc.)  to
demonstrate compliance with this lower emission limit.
Will this proposed new emission limit be  "federally
enforceable" as defined in the August 7,  1980  PSD
regulations at 40 CTO $52.21(b)(17)?
NO.  Operating permits are not  federally  enforceable.
State could, however, change the conditions  of  the
construction permit to make the reduced emission rate
federally enforceable.
The
    Reference:
552. 21 (b) (17).

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               UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                                               3.13
                                JUN 30 1981
 SUBJECT:  • PSD Definition of Source

 FPC?-:      Director
           Division- of Stationary Source Enforcement

 TO:        Fteve Pothblatt, Chief
           Air Programs Branch, Peg ion V

      This is to respond to your memo of June E, 1S81, in which you-
 requested a deterrination of whether two General Motors facilities.
 located in Lansing,  Michigan, should be considered one "source* as
 that  term is applied under PSD review. Specifically, the two
 facilities  are approxirately one mile apart, have a dedicated
 railroad  line between them and are programed together to produce
 one line  of automobiles.

      The  PSD regulations define stationary source as any building,
 structure,  facility  or installation which enits or nay eirit any
 pollutant regulated  under the Clean Air Act.  The regulations go on
 to define "building, structure, facility or installation* as:

           all of the pollutant-emitting activities which
           belong to  the sane industrial grouping, are
           located on one or icore continguous or adjacent
           properties, and are under the control of the
          sane person (or persons under connon control).
           Pollutant-emitting activities shall be considered
           cs part of the seme industrial grouping if they
           belong to  the sane T.cjcr Group" (i.e., which have
           the sane first two digit code) as described in
           the Standard Industrial Clascif ication Manual,
           1572,  es arended by the 1977 Supplement (U. S.
           Government Printing Office stocJ: number 4ini-OC66
           and 003-005-00176-0, respectively) (40 CFP £2.21
     The  two General Motors facilities without question meet the
criteria  of  cordon ownership end sane industrial grouping.  The
rensir.inq test  is  one of adjacency.  Based on the unique set-up of
these  facilities  as described above end previous EPA
determinations, (see attached) this office agrees that the  two
facilities car.  be  considered adjacent, and therefore, nay he
-* ~
                                                            OFFICIAL p'L= CCPY

-------
     Since t'he two segments  of  tne  source  ere loc?ted in a
non-ettflinr-ent ares,  I would  like  to  emphasize that the use of
this deterr.ination is continaent up or. the  adoption of the PSD
definition of "source" for  non-attainnent  review.

     If you have any  questions  regarding  this determination,
please contact Janet  Farella  of my  staff  at 755-2564.
                                  Edward  E.  Reich
cc: Peter V.Vckcff  (OCC)
    Kike Trutne  (OAQPS)

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                   NITED STATES ENVIRONMENTAL =S.CTECT1CN AGENCY
   DATE.     5 g JUN 1981

suBJEcrOefining Two Separate Plants as One Source

      Steve Rothblatt, Chief
          Programs Branch  "
                           *
      Edward E. Reich, Director
    TO-Stationary Source Enforcement Division, (E341)

      Region V has been asked by the State of f-ichigan and the General Motors Corporation
      to make a determination as to whether or not two plants on different sites
      constitute a single source.  The purpose of this memo is to describe the
      circumstances related to this request and seek your counsel before we respond
      to the State and GM.  We request your recommendation on our tentative position
      by June 12, 1981 at which time we will  be responding to the State.

      During the assembly of some vehicles in Lansing, Michigan, auto bodies are made
      in the Fisher Body plant and then are transported by truck to an Oldsmobile
      plant one mile away.  At the Olds plant the bodies are placed on frames and
      the fenders and hoods are attached.   At the present time the bodies are painted
      at the first location and the fenders and hoods are painted at the second  locatior.
      GM is proposing to move the painting operations to^ne of the locations.

      Under the present definition of source  in nonattainment areas, Gfl would have
      to meet the Part D new source review requirements.   However,  under the Karen
      12, 1981  proposed definition of source, the curtailment of painting at one
      place in  a source could be used to. offset additional  painting elsewhere in
      the source  and thus the source would avoid the Federal  new source review
      requirements.   The issue of concern  for GM is  whether or not  these two plants
      which are separated by approximately 4,500 feet can be considered as one source.

      Our investigation has revealed  that  both plants come under the same SIC code.
      Additionally,  the two plants are the only facilities serveJby a special  spur .of
      the C&O Railroad for raw material delivery and  in the future  the spur will  be  used
      to move unpainted parts from one plant  to  another when the painting is done at
      one location.   Furthermore, at  other locations  in the State  where vehicles
      are assembled  in this two step  body/frame  fashion,  tha two plants are under one
      roof or are  connected by a  conveyor  for transporting the  bodies.

      It is our opinion that these Lansing plants  are functionally  eauivalent to'~a- -source
      and that  U.S.  EPA has the flexibility to arrive at  that "conclusion .   The  reqeral
      Register  of  August  7,  1980  on page 52695 states the following when discussing
      proximity  of PSD activities "EPA is  unable to say/precisely at  this point  how
      far apart  activities must be in  order to be  treated separately.   The Aqency
      can answer that  question only through case-by-case  determinations."   With  the
      distance  between the two plants  less than  one mile  and the  plants being connected
      by a  railroad  used only for Gtf,  we believe that the plants meet the requirement
      of being  adjacent  and  therefore  can  be  considered one  source.

      Such  an interpretation apoears to be consistent  with  U.S.  EPA's position which
      appears in the March  Federal  Recister on page 16281.   This  position as stated,
      when  supporting  the  change  in "source"  definition,  is  "even outside of these
      'construction moratorium' areas  unaer the  oresent regulatory  scheme,  the
  PCJIM tsc-6 -Tr: «•

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August 7 definition can act as a disincentive  to  new  investment and moderni-
zation by discouraging modifications to existing  facilities."

We have concluded that should the March 12, 1981  proposed definition of source
become final, the State under the existing SIP though a variance from the.
Commission will be able to issue a State permit to GP.  The State will also
reouire a phased in LAER by 1986.  Thus, the environmental costs of this
interpretation will be negligable.

Please contact Ronald J. Van Mersbergen at FTS 886-6056 for further information.


cc: E. Smith
    M. Trutna

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                                                                      3.19
3.19
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
       CR:
July 31, 1981
Summary of PSD Policy Determinations
Thomas W. Devine
Air and Hazardous Materials Division, Region IV
All State/Local Directors
Region IV
Summary of PSD policy determinations during the period
from February 5, 1981 to July 15, 1981:
   1)  Is a source reactivation subject to PSD (see PSD/117)
   2}  The complete list of organic compounds not
       considered photochemically reactive and, therefore,
       not a VOC for purposes of PSD is detailed.
   3}  Construction of a major source in a nonattainment
       area projected to be attainment (based on the
       approved Part D SIP) before startup, is not
       subject to PSD or Part D requirements.
   4]  Determination of modeling baseline air quality
       levels for 3-hour and 24-hour averages is discussed.
   5)  If an ambient monitor has been shut down, data
       obtained may still be deemed pertinent and useful
       under certain conditions.
   6)  A minor source which locates within a PSD area
       and impacts a nearby PSD area may trigger baseline
       and consume increment within each of the areas
       under certain conditions.
   7)  A minor source which adds a major emission point
       could not escape PSD by considering previous
       decreases which cause the net increase to be
       less than the major source threshold.
   8)  An existing source may change its designation
       from major to minor by accepting a Federally
       enforceable limitation.
   9)  The 50 tons per year exemption under 40 CFR
       52.21(1)(7) cannot be claimed for an emission
       increase of any pollutant unless the increase of
       each pollutant"is less than 50 tons per year.
  10)  ThT~air quality de minimus level for N02 is
       14  g/m3 annual average, as stated in the
       published version of the regulation.
2.18 [Hard Copy]; 4.19; 5.20; 6.11; 7.5; 10.23

-------
                    "UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
3.20
                                                  MAR  291982
        Kr.  John KcJand
        Toy F. Vfccton, Inc.
        t.eston Key
        v:eetchesterr PA  1938C

        Dear Kr. Kolend:

             This is to confinr your telephone conversation  cf
        Parch 23, 19C2 vith Janet Fsrella c£ my staff  ccr.cerning
        PSD applicability of fluainuc Felling Kills.   As r.s .  Farella
        stated, for the purpose of PSD applicability under  4C CFP
        52.21 (b) (!)(*) en Alur.inuir Foiling *ill  (£ic  3353)  is  not
        considered a secondary metal production plant  end is
        therefore subject to the 250 tons/year threshold.

             If you have any further questions concerning this
        determination, please contact £s. F&relle at (202)
        382-2E74.
                                          Sincerely yours,'
                                          Fdvard E. Reich,  Director
                                          Diviricn of Stationary
                                            Source Enforcement
       cc:  Kirt Cox
       EN-341:JFarella:amd:3/26/82:Rm3202:x22874
                                   CONCURRENCES
OATC
                                               	r
                                               	1"
EPA F»f» ! 320-1 (13WOI
                                                                 OFFICIAL FILE COPY

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                    UNITED'STATES ENVIRONMEMTAL PROTECTION AGENCY
                                       JUL - 9 1982
       MEMORANDUM
       SUBJECT*   Reactivation  of Anerada Hess Corporation's Port Reading
                  Facility and  PSD Review

       FROM i      Director
                  Division of Stationary Source Enforcement

       TO i        Conrad  Simon* Director
                  Air  and Waste Management Division, Region II

            This  is in response to Michael Bonchonsky's memo of May 25,
       1992.  concerning  the applicability of PSD review to the  .
       reactivation and  modification of the Port Reading Refinery, which
       is owned by the Amerada Bess Corporation.

            Your  memorandum basically outlines two issues i 1) Is the
       reactivation of existing facilities at Port Reading subject to PSD
       review and 2)  Upon reactivation, what emissions aay Anerada Hess
       use as creditable emission decreases.

            On the issue of reactivation, the Agency has maintained the
       policy that if a  source can demonstrate, to the satisfaction of
       the Administrator, that its shutdown was not intended to be of a
       permanent  nature, PSD review does not apply to its reactvaticn.
       Although the facility in question has been inactive since 1974,
       Anerada Eess has  submitted adequate evidence to demonstrate that
       its shutdown was  not intended to be permanent.  The reactivation
       of boilers 1 and  2 and  the FCC Unit would not trigger PSD review.
       PSD review may be applicable only if new facilities or
       modifications  cause a significant net emissions increase.

            Regarding creditable emissions, Amerada Hess would like to
       take credit for the difference in emissions between operation
       prior  to shutdown in 1974 and operation after the reactivation of
       the facility.  During the shutdown of the plant (1978) the
       baseline for the  area in which the source is located was
       triggered.  Your  memo contains the correct analysis of baseline
       emissions  and  creditable emission reductions! The baseline
       concentration  includes  the actual emissions of a source in
       existence  on the  baseline date.  Upon reactivation of its
       facility,  Amerada Hess  may only credit a decrease in emissions
       from the actual emissions occur ing on the baseline date.
       *  —   :•«  Actual  «ni
                                   CONCURRENCES
                                                            1
I PA ?«•• 1370.1 (13-70)
OFFICIAL F1U£ COPY

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      According  to the  information in your memo, Airernda Hess will
 only  have  creditable decreases in eirissions at boilers. 1 and 2 of
 18 TPY  of  NOX,  32 TPY  of SO- and 2 TPY of CO.  Araerada Hess
 nay not take  any credit for emission changes occurring at the FCC
 Unit, since emissions  at this unit were zero on the baseline
 date.

      The proposed modifications and the additional new facilities
 to the  refinery will be subject to PSD review for CO.  Amerada
 Hess  is not required to perform an increment and/or NAACS analysis
 of the  SO2 and  HOX emissions are not subject to PSD review.
 Nevertheless, the S02  emissions still consume increment and irust
 be addressed  by the next major modification or najor source of
 S02 to  locate in the area.

      In closing, I would like to erphaeize that,-at this tine,
 this  determination (or any other PSn determination) is in no way
 affected by the CMA settlement agreement.  The PSD regulations, as
 amended on August 7, 1980, remain in effect and binding until
 amended through formal rulemaking procedures*

      This  response has been reviewed and received concurrence front
the Office of General  Counsel and the Office of Air Quality
 Planning and  Standards.

      If  you have any questions regarding this determination,
please  contact  Janet Farella of ny staff at 332-2677.
                                      Edward £. Reich
ccs Ken Eng, Region II
    Mike Trutna, OAQPS
    Peter Wyckoff, OGC
         BY,JF*RELIA=rbr:J2877!7/l/82,DISK JAHZT «!AMERADA/HESS

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           UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

 N*                    WASHINGTON. D.C. 20460
 '£
 -\«-
                                                       OFFICE OF
                                                  AIR. NOISE AND RADIATION

                               W 31  1983


 Mr.  John M. Daniel, Jr. P.E.
 Assistant Executive Director
 State Air Pollution Control Board
 Room 801, Ninth Street Office Building
 Richmond, Va.   23219

 Dear John:

      In your letter of April 4,  1983 you sought clarification of
 an EPA conditional determination made on June 9,  1980.  That
 determination  dealt with the impact of fugitive dust  on the PSD
 applicability  decision for a source consisting of a surface coal
 mine and a coal preparation facility (including a thermal dryer).
 You  now request that a final determination be made on this issue
 and  that we review whether the facts in your case should in anyway
 alter that decision.

      EFA's June 9, 1980 decision involved the application of the
 PSD  rules to a surface coal mine and coal preparation plant located
 at  a common site.   The conclusion of that determination for PSD
 purposes,  was  that the coal mine and coal preparation plant comprised
 one  single source  and that the main activity of the source was the
 mining of coal. Thus applicability in that case  was  based on a
 threshold of 250 tons per year of any pollutant.  Jy

      After carefully reviewing that decision and  the  facts in
 the  case cited in  your letter, we reach the same  conclusion.
 The  main activity  of the source  involved in your  case is  the mining
 of  coal and although the major point of emissions in  this case is
 the  preparation of that mined coal,  the 250 tons  per  year threshold
 is again appropriate for determining PSD applicability.
JJy 40  CFR 52.21  (b)(l)  defines  'major stationary  source*  to
include sources  which emit 250  tons per year of any pollutant,  or
100  tons  if the  source  is  specifically identified.   Coal  mines  are
not  identified although coal preparation plants are.

-------
      The PSD regulations at 40 CFR 52.21  (b)(5)  and (6)  define
 stationary source and building,  structure,  facility or installation
 as follows:

       " 'Stationary source1  means any building,  structure,
       facility, or installation  which emits  or nay
       emit any air pollutant subject to regulation under
       the Act."

       " 'Building, structure,  facility, or  installation1
       means all of the pollutant-emitting activities
       which belong to the same industrial grouping,  are
       located on one or more contiguous or adjacent
       properties, and are under  the control  of the same
       person (or persons under common control).   Pollutant-
       emitting activities shall  be considered  as part
       of the same industrial grouping if they  belong
       to the same 'Major Group1  (i.e.,  which have the
       same first two digit code)  as described  in the
       Standard Industrial Classification Manual,  1972, as
       amended by the 1977 Supplement...."

      The deep mine and the coal  preparation plant in your
 case  are located at one sice,  are under the control of the same
 person and a review of the SIC Manual reveals  that they  fall  under
 the sane Major Group.   -Therefore,  the coal mine  and coal preparation
 plant constitute one source  for  the purposes of  PSD applicability.

      When interpreting what  the  overall source should be described
 as and thus what threshold should be used for  applicability,  the
 Agency has consistently determined  that the key  to this  issue
 should turn on the primary -activity of this source.  This decision
 is reached independently of  the  fact that a coal  preparation  plant
 (including a thermal dryer)  is an identified source category  and  a
 coal  mine  is  not.   In  this case,  as Tin  earlier decisions, the
 primary activity of this source  is the  mining  of coal.  The coal
mine  provides the  raw  material for  the  coal preparation plant and
 as such best describes the source's  primary purpose.  The SIC
 Manual  itself lists  coal preparation as a subcategory of coal
mining.

      It  should be  pointed out, however, that this  decision involves
 the interpretation of  EPA's  own rules and that it  provides the
Agency's minimum requirements  for PSD applicability.  The State,  in
 interpreting  their rules,  should  feel free to adopt a more stringent
approach  and  conclude  that the threshold in this  case be 100  tons
per year.

-------
                          -3-

     This decision has been reached with the concurrence of our
Office of General Counsel.  Should you have any questions concerning
this response, please contact Rich Biondi at 382-2831.

                           Sincerely yours,
                      Edward E. Reich, Director
                Stationary Source Compliance Division
             Office of Air Quality Planning and Standards

cc:  Peter Wyckoff
     Mike Trutna
     David Rochlin
     Jim Sydnor
     Daniel E. Rogers - Consolidation Coal Co.

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,.t» w^

A ':       JNITED STATES ENVIRONMENTAL 3ROTE-ZTiON AGENCV

     >                     WASHINGTON. 0 C. 20460
                                     1281
                                                     OFFICE OF ENFORCEMENT
   Mr. John Chandler
   Department of  Environmental Protection
   State House  station  17
   Augusta, Maine   04333

   Dear Mr. Chandler:

        This letter is  in  response to your request dated December 15,
   1980 concerning  the  applicability of new source performance
   standards (NSPS) and prevention of significant deterioration  (PSD)
   requirements to  a proposed  fuel conversion at Great Northern  Paper
   in Millinocket,  Maine.   The question concerns two steam generators
   which are currently burning No. 6 fuel oil that are proposing to
   convert to coal.  I will respond to the NSPS and PSD questions
   individually as  those requirements apply to both boilers.

   NSPS

        Since the boilers  in question commenced construction prior to
   the time of proposal of  40  CFR  Part 60 Subpart D they will "be
   subject to the NSPS only if they undergo a modification or
   reconstruction as those  terms are defined  under 40 CFR 60. 2 (h) and
   implemented under 40 CFR 60.14  and 60.15.

        As provided under 40 CFR 60.14(e)(4),  the following shall not
   be considered modifications under Part 60:

        "Use  of an alternative fuel  or raw material if,
        prior to the date any  standard under  this part
        becomes applicable  to  that source type,  as'
        provided by §60.1,  the existing facility was
        designed to accommodate that alternative use.
        A facility shall be considered to be  designed
        to accommodate an alternative fuel or  raw
        material if that use could  be accomplished
        under the  facility's construction
        specifications as amended  prior to the change.  . ."

        Since in this  case  the  two  boilers (the  facilities in question
   as defined in §60.41) were  designed to accommodate the use of coal
   prior to August 17,  1971 (the date of  proposal of Subpart D)  these
   boilers will qualify for the exemption in  £ 60. 14 (e) (4*5 and will not
   become  affected facilities  as a  result of  the switch in fuel
   types .

-------
      As  defined•in 60.15(b), "reconstruction"

      "means  the  replacement of components of an
      existing  facility to such an extent that:
      (1)  the fixed capital cost of the new
      components  exceeds 50 percent of the fixed
      capital cost that would be required to
      construct a comparable entirely new
      facility, and (2) it is technologically and
      economically feasible to meet the
      applicable  standards set forth in this
      part."

      The facility, in this case, is the fossil fuel-fired  steam
 generator or boiler.   GNP has demonstrated in their October  3,
 I960,  submittal  to the Maine DEP, that the costs of the  new
 components for boilers one and two will require only 26.4  percent
 of  the cost  for  comparable entirely new boilers.  While  we have  not
 conducted an independent analysis of GNP's demonstration nor do  we
 necessarily  agree with GNP's itemization of what boiler  components
 would  be included in  such a demonstration, the costs in  question
 are so significantly  less than that which would be required  to
.qualify  as a reconstruction that it is reasonable to accept  their
 demonstration.  Therefore, it is the conclusion of this  Office
 based  on GNPs  analysis that GNP's two boilers will not be  subject
 to  the provisions of  40 CFR 60 Subpart D as a result of  the  costs
 incurred to  switch from oil burning to coal burning.

 PSD

      PSD like NSPS generally identifies modifications as any
 physical change  or change in the method of operation of  an existing
 stationary source which results in an increase in emissions.  There
 are, .however,  a  few distinctions between the two provisions.  These
 are most noted in some key definitions.  It is my understanding
 that the State of Maine has a SIP for PSD that was approved  by EPA
 pursuant to the June  19, 1978 PSD requirements.  Thus, Maine is
 processing PSD permits pursuant to State regulations as  approved
 under the SIP.  The June, 1978 PSD requirements differ
 significantly from the August 7, 1980 requirements particularly  in
 the definitions  of source, modification and potential to emit.
 Therefore, you should examine the provisions of your SI? to
 ascertain the effect  of that SIP, particularly the definitions of
 source and modification on the proposed changes being considered by
 GNP.

      If  it is determined  that there will be an increase  in
 emissions as applicable under the appropriate regulations  (the
 Maine SIP) then some  level of PSD permitting may be applicable.   It
 appears that the alterations being conducted at the boilers  will
 not subject them to BACT applicability (i.e., they were  capable  of
 accommodating the alternative fuel prior to January 6,  1975,
 52.21(b)(2)  (iii)(e)(l), and they were not prohibited  from
 switching as a cesuit of a -permit condition).  In addition the
 reconstruction previsions of the Maine 37? «i_l -ot  =i£-2Ct -r.ese
 si'-.sca •'.ons since t'.ts 73:ne  =>nalvsis conducted  for MS?S

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                                                                    3.23
applicability would apply  under  Maine's PSD provisions.  However,
it is not so clear that  the  additional activities being undertaken
at the paper mill, which are necessary additions in order to allow
the combustion of coal,  are  not  modifications.   The description
supplied by GNP  indicates  "that  the  adaptation  of boilers 1 and 2
to burn coal will include  the addition of coal  handling equipment
and related facilities."   Depending  on the extent of these
additions there  may be some  need for PSD review including
application of BACT to these "additions".  Even if the changes are
not a modification the increase  in emissions (if any)  will consume
air quality increment providing  that the baseline date has been
triggered.

     In closing, I would like to stress the need for you to
consider the effect of Maine's PSD requirements on this project as
well as to supplement the  information the company has  submitted
with additional material so  that a more definitive decision can be
reached regarding the scope  of any PSD applicability.   My staff has
discussed this response with members of our Region I Office.
Should you have  any additional questions please contact John
Courcier at 617-223-4448 of  that Office.  Should you have any
questions regarding this response, please contact Rich Biondi of my
staff at 202-755-2564.

                                     Sincerely yours,
                                     Edward E.  Reich,  Director
                                     Division of Stationary
                                       Source Enforcement
cc: Linda Murphy
    Mike Trutna
    Peter Wyckoff, Earl Salo
    Bob Ajax

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   NOV 0 3 1986
 Mr.  Allen Eli  Bell
 Executive Director
 Texas  Air Control Board
 6330 Highway 290 East
 Austin,  Texas    78723

 Re:  PSD Applicability Request, Valero Transmission Company
     Yoakum, DeWitt County, Texas

 Hear Mr.  Bell:

 We have  reviewed Valero Transmission Company's request for an applicability
 determination of Prevention of Significant Deterioration (PSD) permit
 rpquirements to the expansion at their Gohlke Plant in DeWitt County, Texas.
 At issue  is whether the relationship between Valero Transmission Company, as
 a service  provider under the SIC major code 49, to Valero Gathering Company
 under  SIC  major code 13 is such that there are two distinct PSD sources here.

 Valero asserts that its gathering company is a separate company from its
 transmission company.  Valero Gathering Company processes the gas from
 wells  to  remove hydrogen sulfide, carbon dioxide, and water to meet pipeline
 specifications prior to custody transfer to Valero Transmission Company.  The
 principal  product of Valero Gathering Company is pipeline quality natural gas
 under  the  SIC major code 13, while the principal product of Valero Transmission
 Company  is the distribution of natural gas through a pipeline system under the
 SIC major  code *9.  Valero maintains that the Gathering Company does not
 convey, store, or otherwise assist in the production of Valero Transmission's
 principal  product, and therefore concludes that the two companies are separate
 sources for the purpose of PSD applicability.  For similar reasons, Valero
maintains  that Valero Hydrocarbon Company, an extraction facility in close
 proximity  to Valero Transmission Company with an SIC major code 13, is a
separate source from Valero Transmission Company.

 In reviewing the PSD requirements, it is evident that each source is to be
classified according to its primary activity which is determined by its
principal  product or group of products.  Thus, one source classification
encompasses both primary and support facilities, even if it includes units
with different two digit SIC codes.  Support facilities are typically
those which convey,  store, or otherwise assist in the production of the
principal  product or group of products produced or distributed, or services
rendered.  See 45 FR 52695 (August 7. 1980).


6T-EN:SPRUIELL:ys:09/25/86:xl594                        SPRUIELL DISC 3

6T-EH        6T-E       6C-T
ASCENZI      HEPOLA     GREENFIELD

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 At  issue Is  whether Valero Transmission Company  is a support  facility to
 Valero Gathering Company.   A  review of the  activities  of  the  two  conpanies
 indicates that  both companies  produce natural  gas as their  principal product.
 We  consider  Valero Transmission  Company as  a  support facility to  Valero
 Gathering Company since the Transmission Company receives the processed
 natural  gas  from Valero Gathering  Company and compresses  It for distribu-
 tion  into a  pipeline system.   Thus,  Valero  Transmission Company is a support
 facility to  Valero Gathering  in  that it conveys  the product natural gas from
 the processing  plant into  the  pipeline system.   Available information further
 indicates that  conveyance  of  the product natural gas through  the  Transmission
 Company  is the  only means  of  Introducing the  product natural  gas  into commerce.
 The Gathering Company is not  equipped to introduce its product into commerce
 by  any means other than through  the Transmission Company.   Consequently,
 for the  purposes of determining  whether modifications  to  Valero Transmission
 Company  would be subject to PSD, Valero Transmission Company  and  Valero
 Gathering Company are considered to be one  source.

 On  September 26. 1986, Mr. Ken Maid  of Maid and  Associates  asked  for clari-
 fication on  how the distance  between two facilities would affect  the
 applicability of the PSD regulations' one source classification to such
 facilities.  In the case of Valero Gathering  Company and  Valero Transmission
 Company, the distance between  them does not affect the applicability of the
 PSD regulations'  one source classification  to such facilities since they are
 on  contiguous properties.   The gathering and  transmission plants  are one
 source for the  reasons stated  above. For cases  where  sources are not located
 on  contiguous or adjacent  properties, EPA cannot say precisely how far apart
 tne activities  must be in  order  to be treated separately.   EPA can only
 answer that  question through case-by-case-determinations.   See 45 PR 52695
 (August  7, 1980).

 If  you have  any questions, please  call Mr.  Stanley M.  Spruiell of my staff
 at  (214) 767-9875.

 Sincerely yours,

  (s) JACK & DIVITA
~1
 William  B. Hathaway
 Oi rector
 Air,  Pesticides and Toxics Division  (6T)

 cc:    Mr. Lawrence Pewitt, P.E., Director
       Permits Division
       Texas  Air Control Board

 bcc:   Ascenzl (6T-EH)
       D1ggs   (6T-AN)
       Rasnic

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                 UNITED STATES ENVIRONMEN-AL PROTECTION AGENCY
                         Office of Air Quality Plai ning and Standards
\,  *X                  Research Triangle Park, North Carolina 2771 1
  4   *'
  l ••0**'*'
                                 MAR 2 6  1937
  MEMORANDUM

  SUBJECT:   Request for Guidance in Drafting a State Implementation Plan (SIP)
            Deficiency Notice for Michigan's Nonattainment New Source Review
            (NSR) Program
  FROM: *    Darryl  D.  Tyler,  Director
       V^/Control Programs  Development Division (MD-15)

  TO:        David Kee, Director
            Air and Radiation Division,  Region V (5A-26)


       This  is in response to your recent memo in which you  requested  guidance
  on a SIP deficiency  notice  for Michigan (MI) NSR regulations.   I  agree with
  you  that the program deficiencies outlined  1n your  memo  for the MI NSR
  rules warrant a SIP  deficiency notice.

       Your  first concern relating to the Environmental Protection  Agency's
  (EPA's)  general policy and  guidance on SIP  deficiencies  should  be answered
  by the Office of General  Counsel (06C).  The OGC is currently developing
  legal strategies  on  the relationship between notices of  SIP deficiency and
  the  Imposition of a  construction moratorium as well as other sanctions.
  A copy of  your memo  has been sent to Peter  Wyckoff  for response.

       I can answer the other concern you included in your memo on  the
  approvab111ty of  an  NSR regulation which includes a dual source definition.
  As we have stated before, if an NSR regulation is otherwise approvable,
  the  use  of a dual  source definition requires no demonstration for EPA to
  approve  the SIP revision; we consider  such  definition to be more  stringent
  than our minimum requirement.   In fact, our concern is with proposals to
  use  a plantwide source definition.  The EPA requires a demonstration or
  certification for all  States wishing to adoot a Part 0 NSR program which
  contains a plantwide source definition with netting.  The  requirements of
  this demonstration or certification are contained in a memo signed by Craig
  Potter on  February 27, 1987.  A copy of this guidance memo has  been  sent to
  you  under  separate cover.

  cc:  Ron Van Mersbergen
       Nancy Mayer
      Gary  McCutchen
       Greg  Foote
       Peter Hyckoff
       Rich  Ossias

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                     UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                          REGION V
     DATE
  SUBJECT-
         'Request  for  Guidance  in Drafting a  SIP Deficiency Notice
          for  Michigan's  Nonattainment  Mew Source Review Program
     FROM:
         David  Kee, Director
         Air  and  Radiation  Division  (5A-26)
       TO:
         Oarryl Tyler, Director
         Control  Programs Development  Division (MD-15)

         This Region  has concluded that  there are certain deficiencies with respect
          to the current  Federal requirements in the Michigan new source review
         regulations  for nonattainment area  (NAA) sources.  Michigan's state
         implementation  plan  (SIP) NAA rule  was patterned after the December 21, 1976,
         offset policy and  submitted and approved before the August 7, L980, Federal
         regulations  were promulgated.  The  State rules were approved by giving strong
         consideration to equivalency  with what the August 3,  1980, regulations would
         require  on balance.   However, we find at this time that implementation of the
         Michigan NAA new source review  (NSR) program has major  inconsistences with
         the  current  Federal  requirements.

         Examples of  the program deficiencies are as follows:

         1. The State rule  does not define the baseline for providing offset and now
            we  find that many offset actions involve pre-appl ication shutdowns.

         2. Certain significant -modifications to major sources in nonattainment areas
            are exempted because they  do not exceed 100 tons per year (tpy) which is
            the SIP cut-off level .

         3. Certain significant modifications which are required by the SIP to provide
            offsets are  exempted from  the public comment requirements.

         We are currently considering  drafting a notice of SIP deficiency.  We request
          that you provide to  us policy and guidance with respect to the relationship
         and  timing of issuing a SIP deficiency notice and a proposal  to impose the
         Section  110  (a)(2)(I) construction  oar.  We understand the Agency's policy to
         be that  a ban is imposed only when  and if Michigan falls off schedule in suo-
         mitting  a plan  in  response to a SIP deficiency notice or submits a disapprovaole
         plan,  and then  a ban  is imposed only after further notice and comment.  We
         would  also appreciate any recommendations you may give with respect to this
          As an  area  of  further concern, we would like to know if Headquarters will be
          able to  give expedited  approval  to  an approvable dual-source (definition of
          source)  NSR rule  if one is  submitted by the State.  We very much want to avoid
EM *ONM ISM (HIV. >7Q

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                                                                                 2.25


                                     -2-
an embarrassment to the Agency if the State submits an approvable NSR rule to
avoid the construction ban and United States Environmental  Protection Agency
(USEPA) cannot approve it because we experience delays in approving dual-source
rules.  We encourage you to do what you can to help the Regions to correct
environmental  deficiencies in SIP regulations by making it possible to expeditiously
approve adequate rules.

If you have any questions in this matter please contact Ronald Van Mersbergen
at 312/886-6056.

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             UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                          WASHINGTON, D.C 20460
                       MAY 271987
                                                           omaor
                                                         AtKAMDMOUTWII
MEMORANDUM
SUBJECT:  Reactivation of Noranda LaJceshore Mines' R1A
          Plant and PSD Review
FROM:     John S. Seitz, Director                  _
          Stationary Source CompliiHce Division
          Office of Air Quality Planning and Standards

TO:       David P. Hovekaap, Director
          Air Management Division, Region IX


     Pursuant to your recent request, this memorandum addresses
the status of Noranda LaJceshore Mines' roaster leach acid  (RLA)
plant in Arizona.  Noranda is contemplating startup of the RLA
plant which has been shut down since 1977.  The company contends
that the shutdown was not intended to be permanent, and there-
fore believes that the plant should not be subject to PSD review.

     Whether or not a source which has been shut down is subject
to PSD review upon reactivation depends on whether the shutdown
is considered permanent.  EPA evaluates permanence of shutdowns
based on the intent of the owner or operator.  The facts and
circumstances of the particular case, including the duration of
the shutdown and the handling of the shutdown by the State, are
considered as evidence of the owner or operator's intent.  This
decisionmaking framework follows the policy on plant reactivation
which EPA set forth in 1978.  The September 6, 1978 memorandum
which initiated this policy states:  "A shutdown lasting for two
years or more, or resulting in removal of the source from the
emissions inventory of the State, should be presumed permanent.
The owner or operator proposing to reopen the source would have

-------
                                                                 3.27
the burden of showing that the shutdown was not permanent, and of
overcoming any presumption that it was."  Several memoranda later
issued by SSCD  (August 8, 1980; October 3, 1980; July 3, 1982)
applied this shutdown/reactivation policy.

     In the case of Noranda's RLA plant, your staff has provided
the following information.  The RLA plant, previously owned by
Hecla Mining Company, was shut down by Hecla in 1977 due to
market conditions.  Reports issued by Hecla at the end of 1977
stated that the RLA facility could be operational within one
week.  However, due to poor economic conditions Hecla decided to
terminate their lease for the RLA plant.  In 1979 Noranda
purchased the facility, but never operated the RLA plant due to
similar economic problems; the RLA plant itself has not operated
since 1977.  The RLA plant was deleted from Noranda's operating
permits in 1980, and Noranda's remaining operating permits were
surrendered in 1984.  In 1986, the RLA plant was removed from the
State's emission inventory.  Your staff has also indicated that
the roaster may need at least several hundred thousand dollars
worth of work before being operable, and could not come on line
for approximately four months.

     Since the RLA plant: has. been shut down for well over 2 years
and has been removed from the State's emission inventory, EFA
presumes that the shutdown was permanent.  However, Noranda has
submitted documentation to Region 9 seeking to demonstrate that
the shutdown was not intended to be permanent.  Included is
a 1980 statement of intent for long term operation of the
facility, evidence of some search for toll concentrates of
sufficient quality to allow operation, and evidence of some level
of custodial maintenance.  The question which now arises is
whether the information submitted is sufficient to rebut the
presumption of a permanent shutdown.

     EPA evaluates the permanence of the shutdown based on
the demonstrated intent of the owner or operator to reopen the
source.  Facts and circumstances surrounding the shutdown,
including duration of the shutdawn and the handling of the
shutdown by tha source and Stats, are evidence of the owner's
intent.  In Noranda's case, the significant amount of time that
has elapsed, as well as Noranda's failure to maintain the
operating permit, removal of the RLA plant from the emissions
inventory, and the time and capital that must be invested in
the rehabilitation of the plant in order to mak» it operable,
are evidence that the shutdown was intended to be permanent.

-------
                                                               3.27
There is not sufficient evidence of intent to reopen the source
to regard this as a temporary shutdown.   Therefore, SSCD concurs
with Region 9's determination that the source, for FSD purposes,
is permanently shut down, and must meet Federal PSD requirements
for construction and operation.

     If you have any questions, please contact Sally M. Farrell
at FTS 382-2875.

cc:  Wayne Blackard, Region IX
     Nancy Harney, Region IX
     Bruce Armstrong, OFAR
     NSR Contacts

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                                                                  3.28
             UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
        *                           REGION 5
        
-------
                                   -  2  -
      source  performance standard  (NSPS).  As you  know, there is no NSPS
      for "fossil  fuel-fired  steam electric plants of more than 250 million
      Btu/hr  heat  input."  Although  there  are NSPS's for certain emission
      units within such steam electric  plants,  it  is inappropriate to
      conclude  that the NSPS  definition for affected facility should be
      considered the same as  the PSD source category for "steam electric
      plants."

  3.   With respect to the precedent  setting value  of another Region's
      determination that the  gas turbines  should not be included in the 250
      million Btu/hr heat input, we  are not  in  a position to defend or
      refute  that  position.   Our determination  is  based upon staff support.
      from the  Stationary Source Compliance Division and the Control Programs
      Development  Division of USEPA  Headquarters.

  4.   It is the general approach of  the PSD  regulations to be comprehensive
      in its  inclusion of activities or equipment  and pollutants in making
      regulation applicability  determinations,  whereas NSPS applicability
      is emission-unit and pollutant specific.  For example, in determining
      applicability for most  PSD categories,  fugitive emissions are taken
      into account as well as emissions from  ancillary equipment, neither of
      which is  regulated  by  the comparable NSPS.   It would be contrary to
      the general  approach of the  PSD program to separate out specific
      equipment or activities of a source  while making an applicability
      determination.

  5.   With respect to the heating  value used  in applicability determinations
      involving gas turbines, the  higher heating value should be used.   (As
      you are  aware, the higher heating value  includes the  energy needed to
      heat the  moisture in the  fuel.  The  data  used in setting the gas
      turbine NSPS, which was developed by the  aircraft'industry,  introduces
      the concept  of a lower  heating value).  Although the lower heating
      value is  used for NSPS  applicability determination, it  is more
      consistent to use the  higher heating value of gas when calculating a
      turbine's contribution for a PSD applicability determination for
      steam electric plants.  The  higher heating values of gas and other
      fuels are used in  evaluating all other types of combustion  equipment.

It is, therefore,  our determination  that the  heat  input associated with  the
gas turbine must be included in the 250 million Btu/hr  applicability  limit
and that the  higher heating  value  should be used  for the  turbine.

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                                   -  3  -
If you have need for further clarification,  please do not hesitate to
contact me at (312) 353-2211 or Ron Van Mersbergen, at  (312) 886-6056.

Sincerely yours,
David Kee, Director
Air and Radiation Division  (5AR-26)

cc: Gerald Avery
    Air Quality Division
    Michigan Department of Natural  Resources

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  4. PSD



Modification
                                         a

-------
                                                             4.1
                                            1377
           PSD Applicability Determination  - ARC3
           fetroieua  Refinery

?r-CM:      Director
           Division of  Stationary Source  Enforcement

70:        Gary L. O'Neal,  Director
           Surveillance and Analysis  Division-Region X

           Hark Hooper,  Chief
           Air Technical Coxpliance Section-Region  X

           Lloyd A. Reed, Director
           Enforcement  Bivisicn-Segion X

     This  is in response to several  raeaos  frcra your oifice
tiat-Ci June 17, August  15,  and August 24, 1977 concern-
in? the proposed construction of  a coke  calciner at AKCO's
cstroleua  refinery in  Cherry Point,  Washington.    Rice
FUcnui of  ny stafi has  been in  contact with Paul Soys
sr.z Cicfc Sauer of your  staffs as well as sezcers of Dicx
Tihoads* staff in the Control Programs Development  Division
in Durban, K.C.  After  considerable  discussion between all
interested parties,  the relevant questions  appear  to be
as follows:

     (1)   Is the proposed  coke  calciner  suoject  to the
           racuireaents  of  ?S2?«

     (2)   Can APCC delay installiton of  control  ecuiprasnc  i:
           ccxpli2r.ce with  the 2&C? requirements, until sons
           tine after ccaaencesent of operation?

     (3)   Can tha source avoid  acrlication  of the  PSD
           regulations  by controlling tr.e r.ev racility er.i
           so-re existing facilities so as to  r.egats any
           increased enissions?

-------
 - t.u.is r.e.-
         1.  Tr.e petrol ear, coke calcir.er,  if csr.structes,
wcuid be a part of tne overall exist ir.s ARC3 pecrcisua
refinery and is therefore a potential -oditication  o'l the
cetroieun refinery. The determination of wfietner tr.is new
facility, does in fact constitute a .-Edification would
depend on vnether tnere would be a potential increase or
ICO tons cer year or '".ore or, an air pollutant  tree  the
petroleua" refinery.  '-r.e use or potential  e=Lssions is  a
change iron the present Fart 52  requirements,  ilowever,
this nas been necessitated fey tne
                                  Clear. Air Act A^encaents
of 1377
        2.  7r.e PSD regulations have  two r.ajcr require-
ments  (1) that the source  install 3AC7 and  (2) that  the
source not violate the applicable air quality  increment.
In order to assara tnat oota these recuiraaer.ts are  satis-
fied,  EPA requires a preconstruction  review.   This precep.-
struction  review requires LPA to respond to the  application
for construction, ossed on tne effect of the emissions irons
tf.s source and all otner sources added to or subtracted fron
the enission  inventory since DeceiEfcer 31, 1374.   We  =ust
(1)  be assured tnat tne source will  be  in  compliance witn
all eaission  liaits -at the tirse it consences operation, and
(2)  be acle  to predict the anticipated  impact on air
quality.  Not only will the allowance of a  cosipliance
schedule sake this .latter prediction  raich core difficult, it
will als'o interfere with SPA's ability to perfora suassquent
~-30 reviews of sources locating in the area of this  proposed
source.  Ar.v  extension of  tiae allotted  to  tr.is one  source
will necessarily affect our. ability to grant subsequent
serait approvals, and say  delay the construction  of  tnese
rubsecuent new source applicants.  We cannot provide tor
tr.is phased  in construction of additional sources within the
scope  of 552.21 and r.ust,  therefore,  disapprove any  netnos
wrich  would provide for delayed compliance.

         3.  ARCS will not  be able to  avoid  application
of the PSS regulations by  totally negating  the increase
in the emissions caused oy tne construction'or tne  coke
calciner, as  long as the coke calciner has  the potential
tc esit  ICO  tens per year  of any air  pollutant.

         If you nave any questions or  coazents, please
contact  Ricn  Biondi  (755-2564) of ay  staff.
                          Edward £.  P.eich
      Dick ?.no3cs -
      hifce Trutr.a - Cr
      Dick Stoli  - 03

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        U';:7ED STATES ENVl.^C1"  ~    _      .

                      WASH!\3TC . .- C 2:--..

                       No ve .Tier 1,  1977
MEMORANDUM                                     c~::: " ES'OHCSWCNT

SUBJECT:   PSD Applicability  Determination -  A3CC Petroleum
           Refinery

FROM:      Director,  Division of  Stationary Scarce Enforcement

TO:        Lloyd  A. Reed,  Director
           Enforcement  Division - Region  X


     This  is  in  response  to  a telephone  conversation  between
Dick Bauer of your staff  and Rich  Biondi of  my  staff  concerning
the applicability of the  regulations  for the prevention  of • -•
significant deterioration (PSD)  to the ARCO  refinery.  This
memo is intended to clarify  a determination  made  by this Office
on September  28, 1977, concerning  this facility.   This clari-
fication has  been necessitated by  the recent events concerning
the interpretation as  to  the effectiveness of §155  of the 1977
Clean Air  Act, as amended.

     An October  6, 1977,  memo from Messrs. Hawkins  and Durr.ing
states EFA's  position  requiring  the immediate application of
§165.  Since  that time EPA has further considered  this point
and has determined that §165 will  be  effective  only after
proposal and  promulgation'of these changes in 40  CFR  51  and 52.
A memorandum  providing further guidance  is attached.

     The effect  of all this  on the ARCO  facility will be that
the Cherry Point refinery will not be subject to  PSD  if  ARCO
can demonstrate  that the  operation of the  coke  calciner  will
not result in a  net increase in  emissions of sulfur dioxide
and/or particulate matter from the entire  refinery.  That is,
if ARCO can control other facilities  within  their  refinery to
such an extent so as to totally  offset the' emissions of'parti-
culate matter and sulfur  dioxide caused  by the  operation
of the coke calciner, they will  not be subject  to  the PSD
requirements.  This presumes  that  ARCO receives its permit
before the  revision to our ?SD regulations which will expand
the categories covered (approximately March  1,  1973) and they
commence construction before  the  new PSD  plan submissions are
due from the  States.

-------
     li you have any additional  questions or caimants please
contact Rich Biondi  (755-2564) of my staff.
                              Edward  E.  Reich


Attachment
cc:  i.i.Ke Trutna - C?DD
     Dxch Bauer  - Rsgion X

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                UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
    WG  24 1577                                                          4.1

     Request for  Applicability  Deternination  -  Under  PSD  Regulations
     Lloyd A.  Reed
     Director,  Enf

     Edward E.  Reich,  Director
FPOv   Director,  Enforcement  Division  M/S 517
T°   DSSE,  EN-341

     Region A is'currently  reviewing an application froa ARCO for a per=ic

     under  PSD to install a coke  calciner at its Ferndale, Washington

     refinery.  Please provide  this office with a determination whether the

     installation of  a coke calciner at a petroleua refinery constitutes

     a modification subject to  the currently effective PSD regulations.  It..

     does appear  co Region  X staff that the PSD regulations do not apply in

     this case.   This determination is needed in this office by August 31,

     1977.

     ce:  D.  E. Cooper
         Bob Courson
         Clark Gaulding
      a,,

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                     JM TE j .> i -  :. .-        =N7-1

   = *TE   August  19. 197?slon  •'•   "     : '  "
-------
application co construct und-ir 153. ;ir vied concurrence can be obtained
from CPDD and DSS£.  The concurrence o  your divisions is hereby  requested.
As you are aware, the review cicr'c. started on August 11.* Your response
is needed before August 31.  I£ you have any questions concerning this
request, please call Dick Bautr or me at 399-1387.

cc:  R. R. Bauer
     D. E. 6oo?er
     Bob Courson

-------
     .7E Ju.na 1
    ?RO.-; ,'CiL-y  L.  O'l.cal,
        ' S-rvcillar.ee: C Analysis  Division               Jli\,'  28       Z' 31

      TO  DicV.  :»hodas, Director
         C."'"D  Di"i£icr.
         r.?A,  OAQPS
         Research Triar^la Par!:,  MC   27711

         r..j.s  neso ccr.Jiras c recent  nliona cor.vcr.-.;.tier. or. 6/12/77 iju.cen ?-ji
         Soys  and lii..e Irattia cor.cerr.ir.g t.ie PSD ravic" oi :r.o  .M'»CO co'..e caiciner.
         .'.s a  result o.' that conversation tlicre are sc'-eral  question;, :>..ic nc^d  to
         Si ad^resrc.-.  I request  chat  ;*ou or the .? j.iropr —:c pers«' •  1.1 OWy.'s  or
         jSSL  provico us vitli suica.ice  o.: each of c/.i rlu<:stior.£,  lifted tcl^'..

               1.   Available SC2 Control Systems for a Co-:j Cilciner (2ACT).
                 r
             11>.'  • To cur knouledge thera are currurtly no S'J? control systacs
           ,; c    installed on rotary hearth coka calciners  in  this cour.tr>-.
     ^-   '     .    However,  the characteristics ol ;l:e cr.iiausc 323  scream fra-
    -V -     ,•  '    ARCC's proposed coke  calciner are siuilar  to other  processes
/\r\'O  •    '   '   (particularly industrial boilers) which c.o have  SU2 control
\f   '}'•        •*'    systsas.   Tha p'• .*? :••*'•                                             -  -
                                                           sized calcir.ers)

                                                    (cssperature to  control device)
     -'   ,-     , :••
       v"  .  '   ,      1125 - 1425 ppi S02         (dr/ basis 2 72  02)

       •"  \  •            100 ns/c=^ particulace      (O.C-i ;r/scf)

                  Several sources vitii similar  e.V.iaus: ^s. streacs  are  controlled
                X with  S02 scrubbers as suaaariaat  in the traft PI^^o  report enti-
            . 4,*' " clud  "Son-Utility SOX Control  Syscacs - ..ovonbar,  197C.."  la
          ^ »'      orJtr to dctwTiniiic wii.it is U/.'-T fur CIIL- .iro|iosca  u.-.j oilcliiar,
          \ '       ye need your input to the follovi-.'.?:

                  Car. a S02 control systea be ar.t:lied to th^ proposal  coke c-lciner?
                  What  level of control can bi  achieved tl-.rou^h th^  use of che sysrcnis"
          <••'  r
              u    tJhat  are the capital and operjcir.s: costs ior the  control sysca=s?
            \i r
            .. '.^--It is our opir.icn disc a catr:il_c sr.sir.aarir.^ avalu.:tion =f appli-
           • /;"   cable S02 ccr.rrol systa^i will ba nscissiry baforc tr.s rev_&v c:
          _, .,    this  PSD annlicatior. car. be COL. *._ced.  One possibility for accos-
          .';- '     plishing such a, szudy would at :.irouih tha JiSu  contract u-ich PEDCo

          • (. 'Re. : 761

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^^rC*
               •.:'.-.•,>.:.  fr.j.5 ccr.o ccr.Siwirabie -/or. in  -.;:'-... .:.  5' _ c:,.:-r,
               nclc^y.   t.or>i*f uliy such  a stu' ;  v-ouiu  j,«r\c ..*> - z?z:i*.i<:.'.-
               for  transfer of So  control cec.volojy co or.:.r -: vcc.:  -<. .  ^o.-c
               b/ ::£.'-3.   Plaasa Ueuerzir.c- : - .".-asib.lif.   ." .airrin^ o»;  . .  .11-
               r.
               T..a  cocpany has propose*  an cl:c.r-»ii'-o  j, T.'O;C!I :o uahi'.v.; - fi:::
               {3A" deterr.ina:ion a:  c.~ii£  tir.e • .;ic.i  rw^ies a policy rui.£u.or. :;
               Zr-'..   EasicaJly, th. company ?rt\-..-.lis  :o cr-i:ir.u.- e.-.-.l^ac 1^ • cT
f.,             available S02 control  sys:er.s.  ..: sc:-.e  ti..«- ir. :>.e future (as ^c
v  »           ur.rpacified) the co-oar.y  u-oulc install cr.o S-_i control systtr ci...
               is :cdsei to Le :".;£ ...^s;  cpprcpriacu fcr :heir source.  Ihu  q-cs-
               tiov. to  EPA is:
               Ur.Lv.7 x;hac circuss.ances,  if ar.y, can a  source be cpo
               the 2ACT .portion of the PSD reguiation if  t'.iay agret co a  co.T.pii
               ance schedule for ii.scuilacicn cf ir. 502 con:rol systen a:  _
               specified  date which is later thsn t!.a plant starc-u? dati?
        "W
           Factors relevant co the A"C3  case ara:

»»>{•       a.   Ho 5^2  control sysce-.-s are  curic:::ly applied  to tl:i type  01  pro-
l>             cess proposed by the £?plic&?.c.   I.i c.-ur  case ch; oroccss  :s a
               rccary  hearth p^:roleuc. co'.ce  cal;in-ir.

           b.   Exact daca  are not available  for c::c fiu2 £«s chaL-ac:cri:--.i=s
               since t!\ij  type of procsss  usir.^ col.c fro:.; Ai-iSi^n cruUj  _j  no;
               ir. operation anyr;here ac  this :ir.&.

           c.   SC>2 control systens are used  u.^.  similar r;is strean^ such  as  fron
               i.-.duscrial  boilers.
           d.  Ths company's econouic ccciticr. on vr.s:>.2r  to build the  ^lanc
               depends  largely on tht cost  of 2 jCi control  avs;c?-..  The  con-
               nauy scutes that the uncertainty of the: con.rol systcn: tCL.uiolcs
               and cose  for their process vraulc probably cause the:,i uat co  buii
               the project at c'.'iis ti«e.

           e.  Tl.e calcincu col>.e iror. :his  plar.t will. jc. abou: 2.6..' S.  '.'his
               plant would provide 1603 T/D of coks Miicl.  is enough to  supply
               all the  alusinu= ST?.elters ir. I «.£.:inc:cn cnr  Orese-.  Projo-ticns
               of future coke sulfur l&veis iniiCi;c tua:  the sulfur Iwvcl  r.ay
               e::cced 3Z by thu 12CO's.  Thtrefor^, if tins  plane is ir.sc-lled
               there will be a ceiling on col^ suliur levels for this area  ar.w
               a suosecu&nc '.)uncfit of liui •._.-.. SGi e.-.issionc tro= aluain^n

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                                                                       4.1
          "'. _s plant w.il .Tlicw  the  rc:l.-jry co sl-.Jt ;.o .p.  so'.  OL
          rc:'cr boiler- i/i:Ii a net  red-ctior. in p-.ticuiiUv:  .  iiSi
          The- boiler shu:_s:-. (i.jjs  eli=ir.:.te ciia £0, si.itsio   :ro
          DOilcrs, but c'.n iacr6£sc  in SO/ jL.iiiioni fro..  .    ^i ':.-.
          r.-.ore chan off-sots :hc  reduction fro?, the boiler
     ^.   The corspsny has previously foliovsd tlie cc.'.plisncw  schtdule
          approach vitn :na local  cor.trol ij;er.cy with rts;)cct to  tht tail
          raL scrubber or t.ijir sulfur ?lar.t.  At clic; ci* j  :iic  refv/cry
          '.:.-.. suilt in 1571, the tail 515 -nits ware ;uct iaing i-ivo-
          cuc£cl on a cosur.erciai seals.  The sarly ur.ics c:.;^ricncc.  ra..r-
          atins problenis, braalid3*..T.s, and sigh cos;,  '."hi co~.s^.-y l.r.s
          recently installed c Ciil  g^s ur.it v'.iich they clci   is  ?.ove
          reliable and cheaper :hnr.  tr.ay cculc have installed in  15 "1.
          The cor.pany ststes: ch^t  chs currsrt question of SO? :oncroi
          frcx che coke calcir.gr is  analogous to die sulfur plant t^il
          gas experience, end tha: they caulc be expected to  Jollov  a
          similar process coward eventual control.

Your early  response zo chese issues, particularly the availability  cf con
tract assistance in che 2/iCT process, will be appreciated.   If you  have
questions ,  contact Paul Boys at (772) 399-1106.


cc: t'cd Reich,  DSSE
     :!yra Cypsar, DSSE
     >j.ke Trucna, OAQPS
     Lob  Coursan, EPA
     Clark  Gculdir.g, E?A
     Dick Bauer,  EPA

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                                                                   4 2
                                    12 2 Q -=7:
           •.-...vs."
                  Cabot Corporation  -  Fuol Conversion
                  ilirsctcr
                  Division of 2tr:tior.3ry Source
                  Oscar Czar a, Jr.,  Chief
                  Technical Support  Section, Air frc^rarss  2rar.ch
                  Region VI
             "ichael Trutna of  the  Control Programs Develocrr.-ar.t
       Division has asked us to  respond to your csr.o of  January £-.,
       1J72,  rerusstir.g^seter^inatior. cs to whether t:-.e  Calrot
       Corporation's proposed  fuel conversion fro.? natural  ^as to
       -recess  i.-23te gas constitutes  s "r.ajcr rocification"  ^s
       t-irin*:'  in C52.21{b) (2) of  tr.2 procossu P£2 r^aulatior.s (42
       rr.  574S3, Eovenber 3, 1977).

             L'ncer the proposed regulations, a fuel conversion will
       not  be considered 2 "aajor  modification" if, prior  to
       January  C, 1S75, the source was designed to acccinnodate use
       of  the alternative fuel.  Therefore,"Cabot will  not  be
       subject  to ^reconstruction  review on the basis of the fuel
       conversion if it can be shown  that, prior to S5>  January 6,
       1575,  the dryers were capable  of burning the alternative
       fuel without requiring  notifications, or the design  for the
       soll-.'t bTiers shewed a clear  ir.-Jicctior. of the  intent to
       Lurn rroceas v,3ste =es  at sc.-e future &ate.f

             Please note that under the old ?S2 rsoulationa,  a
       source .-akinc rcdifications to utilise an alternative fuel
       would  nat be subject to ths ??D review and t.i«t  the  Federal
       F:;i5tsr iatad Cece-jber 5,  1977 saXes certain clarificariar.s
       ro-7arcir.c applicability of  tr.e pronosed/rc^ulations  to
       source:  covered under the Ilovenser 3, l?77*prooosal  but r.ot
       uicer  tlie old regulations.   (See 42 ?P. S2Q21, b&eercer 2,
       1977).
     y r^vie.
      (•••••••••••••
          "
tirr'/e
tr if  ccs<^*
• •••••••• •»••*•*••?"•?•*!••• .••

•^•^^W^hrthrf •••!•<••••<•••• •••••
^•/j.7r  1 2//7//
-J»A FM« 1113-1 (U-70)
                                                                   OFFICIAL FILE C3r

-------
unless -

     1)  the source obtained, .prior to March 1, 1978, all
         final preconstructios pesai-ta required by the
         applicable SIP,, and

     2}  the source ccnaenced .construction prior to
         December 1, 1973.

     Since you have indicated .that Cabot did not obtain
the required State peraits prior to March 1, 1973, the
fuel conversion will be .subject to PSD review under the
proposed regulations, if..an increase of 100 tons or sore
per year in the potential emissions of any regulated
pollutant will result unless .-

     1)  the design specifications for the burners
         indicated r prior to January 6, 1975, the
         intaat to sake .futura modifications to accoa-
         sodate use of waste gas fuel, or

     2}  the source was capable, prior to January 6, 1975,
         of burning waste gas without aaking any'sodifi-
         catioas.

     Should you have any questions regarding this determina-
tion, please contact Rich Biondi (755-2564)'of my staff.
                                 Edward S. Reich.

ce:  Michael Trutna

DSSE:LSCOPXHO:ncb 3/17/78:Rm3202:SX752564

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      7   ,-yei  Conversion 3etermnation


   FROM   Michael  A.  Trutna/NSR Focal  Point
         Control  Program Development Division

     T0-  Rich  Biondi,  NSR Contact
         Division of Stationary Source Enforcement

              Region VI  has requested  assistance in determining the
         of a  source under the new PSD review process.  Cabot Corporation is
         proposing to'convert five pellet dryers to burn process waste gas.
         We feel  the applicability determination hinges upon the amount of
         increased emissions (if any)  and whether the piping cnanges to utilize
         the new fuel  constitute a modification as defined in the new PSD
         regulations.

              I  am enclosing the information sent to us by Region VI.  Additional
         information may be obtained directly from John Bunyak (FTS 729-2742) in
         Region  VI.

         Enclosure

         cc:  0.  Cabra
              D.  Dunbar
EP» Fo.... IJ» t 'Of, 3 7«i

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     -    ' R- > •> :-. LS7£

    :*   Fuel  Conversion D
  FROM   oscar Cabra, Jr.,
        Technical Support Section, Air Program Branch

    T0   Mike Trutna
        Control Programs Development Div-ision (MD-15)


        We have attached two letters frorr. Curt Beck  of Cabot Corporation.  Cabot
        is proposing to convert five pellet dryers to burn  process waste  gas as a
        substitute for natural gas fuel.

        According  to  the  Thursday,  November  3,   1977  Federal Register,  the
        proposed PSD regulations provide that use of an alternate fuel (if prior
        to January 6,  1975 the source is designed to accommodate such alternate
        fuel) will not be considered a modification  and will therefore be exempt
        from PSD review.

        As stated in the January 4, 1978 letter  from Cabot, these pellet dryers
        were in  existence  prior  to January 1, 1975, and  were capable of using
        process waste  gas as a fuel prior to  that time.  It also states that some
        modification of the fuel burners and  additional piping will be required.
        Since these changes will occur,  we question  that the dryers were  actually
        capable of using waste gas prior to January 1, 1975.

        We request a determination  if this proposed fuel  switch is considered a
        fuel conversion under 52.21 (b)  2 and therefore exempt from PSD review or
        a modification of  an existing source and thus subject to PSD  review.  We
        would  appreciate  a  response by  February  3.  1978.   If  you  have any
        questions, please contact me or John  Bunyak  of my  staff at FTS 729-2742.

        Attachments  (2)
'. t-l '-. .  t*-< > ,tr. J 74.

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                                                                   4.2
                                                  January 4, 1978
Mr. Oscar Cabra, Jr., Chief
Technical Sunport Section
Air Programs Branch
U. S. Environmental Protection Agency
Dallas,'Texas  75270
                                             Re:  Proposed Fuel  Corwersic
                                                  Calx>t CornoraMen
                                                  Vi'i'ie Plaite Plant,
                                                  Ville Platte,  Louisiana
Dear Mr. Cabra:
          This letter is in response to your letter of December 30,
1977, and my  telephone conversation of January 3, 197C, with Mr. John
Bunyak.  This supplies additional information to my letter to you of
Pscember 12,  1977, requesting PSD review exemption for the subject
fuel conversion.

          Cabot Corporation wishes to convert five pellet dryers at
our Ville Platte, Louisiana, furnace process carbon black plant to
burn process  waste gas as a replacement for natural gas.  Excess process
.waste gas will be burned in an existing flare.

          These dryers and flare were in existence prior to January 1,
1975, and were capable of using  process waste gas as  a fuel prior  to
that  time.

          The changes  required will  be piping the low Btu process  waste
 gas to  the  dryers,  and  some modification of the  fuel  burners.   Burner
 modification is  necessary  in oracr  to convert the crycrs1 fuel  fmr.
 1000 Btu natural  gas to 50  - 55  Btu  process waste gas.

           We trust  that this additional  information will place this
      modification  in  order for  exemption  from  PSD review.
                                                                      RECEIV:

                                                                    JAN   9
                                                                       GAAH

-------
fir. Cscdi- Cabm, Jr.           P ,-,.!••  '•               Janjar/ •", 197;



          Should any addition.il  -. • -'omalior. I.-: njruired, nleaso feel
free to contact me at  (506)  GGO-Zaru.


                                                   Sincerely yours,


                                                   CAM* CORPORATION
                                                                           _

                                                   Curt B. Deck, P.E.
                                                   Acting Corporate
                                                   Pollution Control Officer
CBB/pc
cc:  nr. John  liunyak  -  U.  S.  tnvii on.-M.-iH.al  ProLL'Ciipn /'-goncy
     Hr. James Coerver, Technical  Secretary, Louisiana Air Control Cotnnission

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                                                                            4.2
C/.::O7
              CAEOi  CGRFC^ATIOM  r  o oo« uoi. »«•»».
                                                       December  12,  1977
     Mr.  Oscar  Cabra
     Air  Programs  Branch
     U. S.  Environmental Protection
     Dallas;  Texas  75270
      Dear Mr.  Cabra:
Re:
                                                       Proposed  Fuel  Conversio:
                                                       Cabot  Corporation
                                                       Ville  Platte  Plant,
                                                       Ville  Flatte,  Louisiana
                Cabot  Corporation proposes to convert five  pellet  dryers.at
      our Ville  Platte,  Louisiana, furnace process carbon black manufacturing
      plant to burn  process waste gas as a substitute for natural  gas  fuel.
      Excess process waste gas will be burned in an existing  flare.

                The  dryers and flare were in existence prior  to January  6, 1977,
      and were capable of using process waste gas as fuel prior to "hat  tine.

                We have  applied to the Louisiana Air Control  Coaraission  for an
      Approval of Emissions fron't.vis facility  (as a result of this  fuel con-
      version).  We  believe that tne emissions  frost this installation  will ccmpl}
      with all Louisiana and  Federal ar.bient air quality and  emission  standards.

                That portion  of this conversion which results in  increased
      emissions, will  begin upon aporoval by the Louisiana  Air Control Com-
      mission; operation is expected to begin in October, 1973.

                We would therefore request that this fuel conversion be
      exempted from  Prevention of Significant Deterioration review.

                                                       Very  truly yours,

                                                       CABOT CORPORATION
                                                        Curt B.  Beck, P.E.  '
                                                        Acting Corporate
                                                        Pollution Control Officer
      CBB/pc
      cc:  Mr. John Bunyak - U.  S.  Environmental  Protection Agency
           Mr. James Coever, Technical  Secretary,  Louisiana Air Control Cornaissio:

                                 RECEIVED

                                DEC I*
                                    6AAHA

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                                                                    j/.3
                     UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                         MAR 24  ^
      MEMORANDUM

      SUBJECT:  Ersana  PSD Applicability  Determinations

      FROM:     Director
                Stationary Source  Coppliance Division
                Office  of  Air Quality Planning ana*  Standards

      TOt       Conrad  Simon, Director
                Air  6 Waste Management Division,  Region  II

           This is to respond to your request for comments  concerning
      the applicability of PSD to  the proposed modification at  Frsana
      Inc's pharmaceutical plant in Humacao, Puerto Pico.   Specifically,
      Ersana is proposing  to increase its production of  s'team from
      1000 to 1ROO HP and  to increase its sulfur  in fuel content  from
      0.13 to 1.8 percent.

           Ersana1s  operating conditions are currently limited  by a
      SSI.18 permit  condition to 1000 HP at any given time.  The  current
      sulfur in fuel limitation for Ersana is 2.48*, however, the source
      has bften burning  0.13% sulfur fuel since 1977.

           I agree with your analysis that the increased production will
      be subject to  PSD since the  source*has been limited by a  federally
      enforceable permit condition (See 40 CPR 52.2Kb) (2) ).  The
      increased production rate will occur from one stand-by boiler.
      BSD review (and in particular the BACT analysis') will only  apply
      to this unit.

           The increase in emissions due to the change in sulfur  content
      at the other boilers is not  subject to PSD  review, however, as
      you correctly  pointed out in your memo, they.do consume increment.
      The increase in emissions is an actual emissions increase occurring
      after the baseline date and  therefore must  consume increment  (See
      40 CFP..52.21(b) (13)).  I am  not persuaded by  Ersana's argument
      that allowable emissions should be part of  the baseline emissions.
      The increase .from the sulfur in fuel change at the non-modified
      unit is, in fact, contemporaneous with Ersana's proposed  increase
      in production  rate and must  be accounted for  in Ersana's  air
      rrual if.v analysts.	
  •SOL
                                    I         I
i                                      .................
                                     •        i

1	'	"~" •V^"*-1	•*"•*•|	'i         T
BATE

-a. i	—o.l m.TtH      '             —         si  <
-------
                               -2-


     As to  the determination of an accej-.tafcle WAfT level  for  the
stand-by boiler, this is * question which Trust he re«?olv*H
between Ersana and your *ta?f.  Your staff r.wy receive  gvidancft
nn appropriate PACT levels hy contaetinrj thf» PACT/LAFTP  Clearing-
house in Durbar, North Carolina.  Brock Kicholsrn henc's up  the
Clearinghouse ctaff and may he reached at 629-551fi.

     If you have any further question? regarding this rtetemination,
       contact Rich Mondi »t
                         Bdwarfl E. Peich
cci  Brock Nicholson
     Hike Trvtna
     Peter Wyckoff
EN-341:R.Biondi:kw:Pinalll-13-83:382-2831
RAS*1

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                  •JNITED STATES ENVIRONMENTAL 3RCTEC";r".' -G£NCV


  OATt  JUL  14^978

SUBJECT  PSD  Requirements


  FROM:  Stuart N.  Roth, Attorney
        General  Enforcement Branch

    T0  Libby Scopino,  (EN-341)
        Stationary Source  Enforcement Division


        On Monday, 10 July 1978, we spoke about the applicability of the recently
        published  PSD regulations to a proposal submitted by the Seaview Petroleum
        Company.   The primary issue concerned the meaning of 40 CFR §52.21(b)
        (2)(ii)(C) as applied to petroleum and petroleum product storage and
        transfer facilities.  It was your advice that a change of the material
        stored or  transferred would not be subject to the PSD regulations, not-
        withstanding the potential to increase emissions by the requisite
        amounts, if prior  to 6 January 1975, the storage and transfer facilities
        were  capable of handling the material intended to be stored and trans-
        ferred, and that no change to a permit issued prior to 7 August 1977
        would be required  to allow such use.

        Please advise me immediately if your understanding of our conversation
        differs from that  summarized above.

        cc:   Richard Biondi (EN 341)
             DSSE
             Mike  Trutna,  OAQPS
             Jehuda Menczel, 2 FT-AF
EPA roan I12O-4

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                                                                 .
               lj*rr.-.it lor .".aruiei-.eau  Lur.
 r;XH:      Director
           Division  of  Stationary Source Lr.forceir.er.t  l.:.-j

 TU:        fcooert L.  Duprey, ui rector
           Air and Hazardous .".aterials  Division
           F.e^ion V,

      '.r.is is in response to your letter oi June 15,  137b.
 lo-j  as.«ili nut suffice.   In  f)(-) f
 ti.'.c  »s  "ov* us-ri;iit \/ould nave osen retjuiroc- sven 11 t.ia r.«»
 :.iin,  as oriyinally proposed, hau alreacy jtcn completed.

      The ar.&ncieJ Clean Air Act is quite specific accut
 requiring opportunity  for a pi^lifi "r.e«rinr;, r-.ahiny r.o
 exceytions for lac.1: of puslic ir.t-rfist.  l.'r.ile «-e s^/n-:at::i2e
 witr. your cesiro to UVOIG wasteful ?roce-Jur*is, there- ioes
 .lot  seen to ue any  way to escape tne levjil rfa-.-Mirtr.e'-itr of
 tr.s  Act.  It is [xjssiole, of course, tnat citizens r-ay  "is.i
 to cucrsss tne issues  relates to the si^niricantly larger
 ylcsnt, and so tr.s opportunity for a ruslic r.c-arinc sr.oulJ  JG
 i-rovi&fC.  In auditicn, t.K.e process of issuir»j j r.«v. V-IT LI
 t.-ili iilow IP.--, to recsnsiaer tr.e nrcper ievsi cjf cor.trcl.
 It 3ssa:.is possicle in tnecry, at least, tnat tne cr.Jivje  ir.
 size of the plar.t could effect the BACT determination.

      It you have «iny fuirtnc-r cu^stions on tr-.u. r..attc.-,  • ie-se
 Cell uave Kochlir. ( :'TJ-7 js^jj-,^; oi
                                  f

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I."S« Ft....*. »ou>( OrXI 8u.UJ.Ml
                                  t!j£ Saritob State
    12>11M
                               of
                         iHasfjtngtcn, 3.C.  20515
                                                                  aiNC AMD
                                                                  COMMITTEE
                                                               SELECT COMMITTEE OH
                                                            SAOCOTIC *ausc AMO cahT
                                                                       PC»M**»SWT S&LECT
                                                                    COMMITTEE ON IMTELUC6MCC
                                                  June 29, 197S
Mr. Douglas  H.  Costle
Ad-ir.iscrator
E^vironr.sr.ral  Protection Agency
    .M  Street,  S.W.
             D.C.   20460
Dear "r. Coscle:

        I ar. vricing Co you concerning the  "arblehaad Lir.e Cp^.-any
plaiit  thac is  located in ay District.  The company receivsc s
psririt  froc EPA to construct a 1200-tor.-?er-day li-e hiir..
Shortly afcsr  che permit uas issued, Xarblshiac had S.T. opportunity
co purchase a  1600 con kiln chat would re?la:e  the 120C ton kiln
as i:all as a 450  ton kiln that was already in o?rra:ior. .

        "arblihead contacted the ::idv:st office  of  the •:?.-. ?.nc
ssV.ed  tliSB to  grant a psrr.it for cha 15"*0  'lilr-.Tr-e "id-. :st
Office  conducted  the ssccssary $vsl;:jti;-s arc  recc.-.r.=r.c3C that
a perr.it be granted.  Not only vzs ths liJO '..iin tech-.ic.elly
acceptable, buc it would actually i'.rrove  t'r.s er.vircr.rer. ial
conditions in  che area.

        Unfortunately, EPA's General Cour.sel ruled  that a  p&rrait
could noc be granted for the 1600 ton 'r.ila because ::arbla:iaac
did not ceet administrative requirements that are  necessary vhen
applying for a permit.  I nust point out that the  EPA's denial
has no  relationship co Marblehead's environcental  status.

        EPA's refusal to granc Marblehead a pernit  for a 1600 ton
kiln will cose ay District at lease 250 jobs.   Ir.  addition,
>tarblahead's inability Co produce li=e r.ay further endanger the
eaplo>T.enc picture in the sceel industry wl-iicn  relies heavily on
liae.   I would like co point out that ciy Congressional District
has been severly  icpacted by nassive layoffs and cutbacks in the
steel industry.   Any future loss of jobs vould  only further car.pea
an already bleak  economic picture la =y District.
          THIS STATIOMERr POINTED ON fAPS.it MAOS WITH R=CYC'_S3

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Mr. Douglas M. Costie
June 29,  1978
Page Two
        I am not asking  EPA to overlook any environmental standards
in  this matter.  As  I mentioned earlier,  the  construction of the
1600  ton >-*!«  would  actually be more advantageous  to  the environment
than  the previous kilns.   In addition, Harblehead  Lime  has a record
second  to none in obeying the lav as it pertains to environmental
•control.

        I am troubled that EPA does not show a greater concern for
Che impact of  its decisions.  The loss of hundreds of jobs sicply
because of an  administrative requirement  is ludicrous.   I strongly
recoB&end that EPA reconsider its decision concerning Marblehead
Lime  and grant a permit for the 1600 ton  tils.

        Thank you for your assistance in this  natter,
looking forward to a prompt response.
                                                           Morptty
                                                ' Member j/f Con:
 «FK:lttf:nmg
/I Member dt I

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              UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
KD10RAKDUM

SUBJECT:  Applicability Determination  for Delco
          Products  in Dayton, Ohio

FP.OM:     Director
          Stationary  Source Coepliance Division
          Office of Air Quality Planning and Standards

TO:       David Kee,  Director
          Air Management Division - Region V


     This is in response to your'request dated March 16, 1983,
concerning the applicability of new source permitting
requirements to Delco's autocobile parts manufacturing facility
in Dayton, Ohio.  Delco operates two coal-fired boilers at
their Dayton facility which are limited to S02 emission rates
of 1.2 pounds per aillion Btu.  These  emission rates were
established under new source requirements.  Delco now wishes
to raise these emission limits to 1.6  pounds per nillion Btu.

     Delco's unit #4 was permitted under Ohio nonattainnent
new source review requirements which established as LAEB. an
emission limit of 1.2 pounds of SC£ per 10° Btu.  As a
condition of this permit Delco was required to reduce the
emission licit applicable to then existing unit #3 from 1.6
to 1.2 pounds of S02 per 10° Btu.  This latter reduction
vas necessitated is order to supply sufficient emission
offsets required by the new source permitting requirements.

     At the time the  original permit was issued, the area
where unit 04 was constructed had not  attained the national
ambient air quality standards (1-7AAQS)  for SCh.  Slice that
tise, this area's air quality has improved to such a degree
that NAAOS are now  being attained. (For purposes of this
response it is assumed that both primary and secondary
standards are currently being attained.)
                            CONCURRCNCSS

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      As  a result  of  this  request, you seek to ascertain whether:
 CD  unit i?4  can increase  its" emission level beyond that
 established  as LAE7,  (2)  unit 03 can exceed the  level agreed
 upon in  supplying emission offsets for Che construction of
 unit £4  acd  (3) any  additional regulatory requirements apply  to
 this proposed relaxation.

      EPA can allow the relaxation of a permitting requirement
 vithin the constraints of the State or local arency's authority.
 The  original permitting requirements vere established based
 on the nonfittainncnt  status of the Montgomery County, Ohio
 area*  Inasmuch as thia area has now been redecijnated to
 attainment,  EPA can no longer require the continued application
 of the nonattainment  requirements.  As lone as any relaxed
 eelssion licit will net interfere v;ith_the_.&cintenance. o.f
 the  KAfeQS nor_aay applicable, a Jr. quality... increment, such a
 relaxation can be"approved.

      Since this change in esission licitations vill result in
 a significant net increase in emissions. Delco will be required
 to obtain a  PS3 permit. .As a part of~the PSD permitting
 ret?uirer.ents, Delco  oust  obtain a year's vorth of air quality
 data.  This  vill be  critical ic this instance to ensure the
 continued attaincent  status of this area.  Along with this
 conitoring data, Delco vill also have to perform 3ACT and
 air  quality  analyses.  As alluded to earlier, Delco vill also
 have to  codify their existing §51.18 permit to allov for
 thia relaxation.  A  careful review of the State or local
 Agency's authority should be conducted te ascertain whether
 ie poasesses the authority to modify the existing pcnrit.

      This response has been coordinated with the Office of
 General  Counsel and  the Control Progress Development Division
 and  they concur in its findings.  Should you have any additional
 questions or concerns, please contact Rich Ciondi at 3G2-2231.
                                 Edward E. Reich
 cc:   Darryl Tyler
      Mike Trutaa
      Peter Wyckoff
      David Rochlia
      Ron Van Mersbergen
EN-341:R.HBiondi:kw:Final 5-6-82 Rm 3202 382-2831
Disk Rich if I Item No. 7

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                  UNITED STATES ENVIRONMENTAL PROTECTION  GENCY
                                     REGION V

        MAR 161383
SUBJECT  Applicability Determination for
        Deco  Product in Dayton, Ohio

  p»OM:  David Kee, Director
        Air Management Division

    T0:  Edward Reich, Director
        Stationary Source Compliance
          Division


        Attached is a self explanitory request for  a  policy determination from the

        air pollution control agency in  Dayton, Ohio.  The request deals with the new

        source review requirements which apply to an  area which has been redesignated

        from  nonattainment to attainment.  If you have any questions, pi ease call

        Mr. Ron Van Mersbergen at FTS 886-6056 or call Mr. James Grass in Dayton  at

        FTS (513) 225-4435.

        cc:   James Grass
             Robert Meyers
             Michael Trutna
             R. Van Mersbergen

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           REGIONAL AIR POLLUTION CONTROL AGENCY
           Serving Car*. Oarke. Greene. Miami, Montgomery S. P-eole Counties
           uS " '/v. ""hira Screec. P O. Sox S72. Cavcon. C^io *iS^£2. '5 "• 3) SS5-——2S
                                February 22,  1983
Mr. Ronald VanMersbergen
U. S. Environmental Protection  Agency
Air Programs Branch
230 South Dearborn Street
Chicago, Illinois  60604

Dear Mr. VanMersbergen:

     Recent telephone conversations  between you and John Paul
of this agency have focused on  regulatory applicability
regarding two coal fired boilers  operated by a local auto-
mobile parts manufacturing facility,  Delco Products Division,
General Motors Corporation.  This facility has requested
that the sulfur dioxide emission  limitations for these two
units be increased from 1.2 pounds of S02 per million Btus
to 1.6 pounds per mmBtus.  Since  the  existing 1.2 limits
were established under new source requirements,  we feel
Delco Products' request raises  some  fundamental  new source
requirement issues.  We are writing  at  this time to seek
written responses to these issues.

     For the sake of background,  a copy of the following
documents has been enclosed for your  review:

  -  Boiler £4 application for  permit to  install;
  -  Boiler fr4 permit to install  with agency new source
     review;
  -  Boiler #4 permit to operate  with special terms and
     conditions;
  •  Boiler #3 permit to operate  with special terms and
     conditions;
  •  August 28, 1981 Federal Register notice redesignating
     Montgomery County to attainment  for  S02;
  -  Delco Products original request  dated January 15,  1932;
  -  Ohio EPA response (in draft  form), letter sent on May
     1,  1982; and,
  -  Delco Products' second request dated January 26,  1983.

     In light of the potential  widespread impact the Delco
Products' request may have on both existing- sources and future
new sources,  we welcome any pertinent discussion you feel  is

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                               Page 2
                               U. S. Environmental  Protection
                               Agency
                               February 22,  1983


appropriate.  We do, however, wish to pose some specific
questions which apply to this matter.

     First,  applicable regulations during the  installation
of Unit t?4 called for sulfur dioxide emission  reductions
which satisfied emission offset requirements.  A portion of
these offsets were achieved through a tightening of the
allowable limitation applicable to Unit #3 from 1.6 pounds of
sulfur dioxide per million Btus to 1.2 pounds  of S02 per million
Btus.  Since Delco Products' request includes  limitation increases
froui 1.2 pounds to 1.6 pounds for both units,  the question of
emission offset permanency arises.  Specifically, are the
emission offsets from Unit #3 permanent even though the ambient
air quality  now lies within the national standards?

     The existing Unit #4 sulfur dioxide emission limitation
of 1.2 pounds per million Btus reflects lowest achievable
emission rate (LAER).  An increase to 1.6 pounds would thus
represent a  relaxation from LAZE.  Therefore,  a similar question
to offset permanency arises.  Are LAER determinations lifelong
or can emission limitations established under  LAER be modified
once National Ambient Air Quality Standards are achieved?

     Finally, if the established limits are "renegotiable"
due to improved air quality, what regulatory requirements apply?
Specifically, would the Prevention of Significant Deterioration
rules now apply?

     Mr. Vanilersbergen , as you can see. the Delco Products'
request impacts some of the basic principles of the new source
review program.  We feel this high level of importance necessi-
tates a written federal response.  We appreciate your consider-
ation in this matter.

                          Sincerely ,
                       i/ James W. Gross
                          Air Pollution Control Specialist
                          Abatement Unit
JWG/vmt

Eaelosu"s
cc:  Robert Meyers
     Edward Reich                           11|  PIS 2 5 1983
     Michael Trutna
                                             AJR w-., ;js
                                             U A £!'/., ...^JuriV.A

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          UNITED STATES ENV1RONME NTAL PROTECTION AGENCY

                        WASHINGTON. D.C. 20460
                           APR I
MEMORANDUM                                        OFFICE OF ENFORCEMENT

SUBJECT:  PSD Questions

FROM:     Director
          Division of  Stationary  Source  Enforcement

TO:       Merrill S. Hohman,  Director
          Air & Hazardous  Materials  Division,  Region  I


     This is to respond  to your memo of  February 26,  1981 in which
you requested answers  to five questions  that  were raised  by
industry representatives concerning  PSD.   I would like  to respond
to your questions in the order in which  they  were raised.

     (1) The answer to this question is  found  in section  52.21
(b)(3)(i) of the August  1, 1980 amendments to  the PSD regulations.
In order for a decrease  ifaoelf in emissions to be .considered
contemporaneous, the actual decrease itself must take place within
five years of the particular  physical  change  or change  in method
of operation at a stationary  source.  The  decrease  must be
enforceable in order to  be creditable; however, enforceability is
a requirement distinct from the five year  contemporaneous time
frame of the actual emissions dec.-ease.

     (2) In order to determine if PSD  review  is applicable for a
modification, it is necessary to  look  at the  source status (major
vs. non-major) before  and  after the  proposed  modification.  If the
existing source is of  major status Sor one pollutant  but  the
results of the modification will  bring the source below the major
source threshold for that  pollutant, PSD review will  not  be
required.  In order for  PSD review to  be applicable for the case
in question, the source  must  either  retain its major  status for
SO-? or propose increases that would  make the  source major for
TS? after the modification.   Any  contemporaneous creditable
increases or decreases in  emissions  should be included when
determining the emission results  of  the  proposed modification.

     (3) PSD review, or  exemptions to  PSD review are  based on
preconstruction information.   A major  source  which qualifies ai a
non-profit health institution may receive an  exemption from PSD
review.  The effect of a change in the source's non-profit status
upon its exemption would depend on any conditions of  the  exemption

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or factors concerning  the  change  in  status.   This  office  would
like to reserve judgement  on your question  until more  specific
information on the  source  in question  is  available.

     (4) The  following definition of  "municipal  solid  waste,"
which  is found in 40 CFR 60.51(b) should  be  used when  determining
a possible exemption under 40 CFR 52.2Kb) (2).

          "Solid Waste" means refuse,  more  than  50 percent of
          which is  municipal type waste  consisting of  a mixture of
          paper, wood, yard wastes,  food  wastes, plastics,
          leather,  rubber,  and  other  combustibles, and
          noncombustible materials such  as  glass and  rock.

     This definition is used to maintain  consistency  between the
P3D and NSPS  programs.  The policy of  using  NSPS definitions
(where appropriate) for PSD and NSR  is supported by  language in
the PSD workshop manual and in  an October 24, 1980 memo from OAQPS
to the Regional Offices (copy attached).

     (5) The  definition of "steam generating unit" given  in 40 CFR
€0.41faf should be  used when determining  an  exemption  under 40 CFR
52.21  (b)(2)(iii)(d).  As  you mentioned  in  your  memo,  the
application of the  aforementioned exemption  was  more  narrowly
defined between proposal and promulgation of the PSD amendments.
The proposed  rule exempted from modification any use  of RDF
generated  from municipal solid  waste.  The  promulgated rules
exempted the  use of RDF only at steam generating units.  The
language in the August 7,  1980  preamble  and  the  purpose of the
exemption  itself, however, supports  the  use of the broader
definition of "steam generating unit."

     If you have  any questions  regarding this response, please
contact Janet LittleJohn of my  staf€ at  755-2564.
                                 Edward E. Reich

Attachment

ce:   Mike Trutna (OAQPS)
      Peter Wyckoff (OGC)

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       •esruary  26,  iW*J"23 STATES ENVIRONMENTAL PROTECTION AGENCY
    TE

.BJECT    PSD Questions


  PROM    Merrill S..Hohman, Director       /^.A      i  r l]l
          Air & Hazardous Materials Division^ Y\g^iM. J W*-~	

          Edward E. Reich, Director
          Division of Stationary Source Enforcement
          Washington, DC


          Subsequent to our recent PSD workshop, representatives of the attending industries
          presented us with some interesting questions. I am hopeful that you can assist us in
          answering the following  questions.  Assume all sources are in PSD areas for all
          pollutants.

          Question 1:  A source shuts down an old boiler in 1976.  Several years after the
          shutdown, the source decides to build a new boiler  and commence construction on it
          in  1983.  (Therefore, the emissions reduction from  the old facility would not
          normally be considered contemporaneous because  it occurred beyond the five year
          period  before the new source construction.)  However, the old boiler shutdown was
          not federally enforceable until the source consented to a permit condition in 1979.
          Question:  Would the reduction from the shutdown  be considered contemporaneous?

          Question 2z  An existing source is considered major for SO. emissions only. (It has
          the potential to emit 5O,at a level that is slightly in excess  of the 250 tons per
          year applicability level.)  ihe source plans a new boiler modification that increases
          only TSP above the "de minimus" levels.  Normally, this would bring TSP under a
          PSD review.  However, after the modification is  completed, there will be enough
          contemporaneous  reductions to bring the SO, levels below  250  tons  per year;
          therefore, making the source, as modified, a minor source. Question: Is the source
          still  considered a major source after the  modification and subject to a PSD review
          for TSP, or would it be considered a minor source and not subject to PSD?

          Question 3:  A source applies to the Governor and requests an exemption from PSD
          because they are a non-profit health  institution.  Assume the  request  is approved
          and EPA concurs.

               Scenario A: After the  source commences conduction,  but before it  starts
               operation, ownersmp  changes to an organization that cannot be considered
               "non-profit"  and would not  operate the  source in a "non-profit  way".
               Question:  Is Region I correct in assuming that the source being  operated by
               the new owners would be subject to a PSD review?

               Scenario B:  Source is built and commences operation. Ownership changes to
               the organization not considered non-profit after  the source is operating.
               Question:  Would the new  owners be required to retrofit BACT and be subject
               to other PSD requirements because  they no longer qualify for the  "non-profit"
               exemption, or would they  be exempt from PSD because there is only a change
               in ownership (and no increase in emissions)?

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^Question 4:   Is there a definition for municipal solid waste as that term  is used
 under the exemption at 40 CFR  52.21(b)(2)Gii)(d)?  Would construction site waste
 that consists mostly of wood, with some nails and bolts, bits of concrete and gravel,
 steel strapping, wire, shingles, etc.,  be considered  municipal solid  waste?  Note:-
 Such waste is currently being landfilled at a municipal dump.

 Question 3:   Under the same exemption indicated in Question 4, the term  "steam
 generating unit" is used.  On page  5270* of the  August 7,  1980 revisions, the
 preamble  states that  only  the switch to ROF at  a "steam  generating unit11  is
 exempt.  It goes on to explain that the term shall have the same meaning for the
 purposes of PSD as it does for the purposes  of  the  new NSPS for certain electric
 utility "steam generating  units".   Under 40  CFR 60.4la, there is a definition for
 "steam  generating  unit" and a definition for "electric utility steam generating
.unit". Question:  Which definition is applicable?  Since the exemption may either
 apply to virtually all boilers, under one definition or only  those that contribute to
 the generation of electricity for  sale, under  the other definition the distinction is
 important.

 Since these are questions  that  involve real case situations, we would appreciate it
 greatly if you could respond to these questions by March 13, 1921.

 Please contact 3ohn Courtier of my staff if you should have any questions.  He can
 be reached at (FTS) 223-4448.
 cc:  Janet Littlejohn, DSSE

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                 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
    <  OC7 24  1980

      Definition of "Installation" ijn Nfltiattajjiment Regulations


 FROM: Walter C. Barber, Director) i l£ffi
      Office of Air Quality Planning and St

   TO: Director, Air and Hazardous Materials Division
      Regions  I-X

           The definition of source in the regulations pertaining to review of
      major new sources and modifications in nonattainment areas is focused at
      two levels:  the entire plant and an installation within the plant.   The
      term installation refers to "an identifiable piece of process equipment".
      (See August  7, 1980 Federal Register, p. 52742 and 52744.)  I and my
      staff have responded orally to questions over the past year or so on how
      to-interpret the term "installation", especially in cases where an I-JSPS
      applies  to a source category.  Our guidance has been that where an ?5PS
      exists or is under development, the "affected facility" definition is
      usually  the  most appropriate definition of "installation".  This memo
      restates that guidance in writing.

           If  an ISPS identifies an "affected facility", the reviewing agency
      should consider such an affected facility'as an installation for the
      purpose  of new source review applicability determinations.  For example,
      an installation at a power plant would be any electric utility steam
      generating unit.

           Where a portion of r plant is not specifically defined as an affected
      facility, either because an MSPS is silent or there is no iiSPS for the
      source category, the reviewer should still refer to the iiSPS approach
      for guidance as to how small a portion of a plant the term installation
      should apply to.  To illustrate, in October 1979 EPA proposed an fISPS
      for auto surface coating operations which defined the affected facilities
      as the prime coat, surface coat, and top coat lines.  Spray booths,
      flash-off areas and ovens within these lines are not defined as affected
      facilities by the proposal.  Therefore, such line elements*should not be
      considered installations; in this case, an installation is one of the
      three lines  noted above

           This position is not new; it has been the basis for decisions for
      more than a  year.  It is being presented here for clarification and to
      avoid inconsistency in the new source review process. /If your staff has
      any questions on this subject in the future, please contact our New
      Source Review Office (FTS 629-5291).

      cc:  Director, Enforcement Division, Regions I-X
           E.  Reich                            0. Hawkins
           P.  Wyckoff                          S. Kuhrtz
           L.  Wegman  ^*                     E. Tuerk
           R.  Biondi*^^                      \\. Trutna
           D.  Rhoads                            D. Gooawin
= * CQOM 1320-4 '«CV J-7«>

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                                                               TDATED)
           UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
«i,    x?                   WASHINGTON. D C 20460
 "< «w*


                            MAR 26  1379
                                                    OFFiCt 0s af.?0»C£"£ST

      MEMORANDUM

     SUBJECT:   Applicability of PSD to the Consolidated -Edison
               Company

     FROM:      Director
               Division of  Stationary Source Enforcement

     TO:        Meyer Scolnick,  Director
               Enforcement  Division - Region II

          This is in response to your memo of February 15, 1979,
     requesting a determination as to whether the Consolidated
     Edison Company's proposed  switch from .3% sulfur oil to"
     1.5%  sulfur oil constitutes a "major modification" for
     purposes  of PSD.

          As discussed below, an increase in the sulfur content
     of  a  particular fuel burned at a source does not constitute
     use of an "alternative" fuel; is not considered a change
     in  the method  of operation; and therefore does not constitute
     a major modification.

          I believe it has  been the Agency's intent, since the
     development of the original PSD regulations, to exempt
     sulfur-'in-fuel changes from preconstruction review.  I  refer
     you  to 40 CFR  S52.21(d)U) [1977] which states,

          "...A source which is modified, but does not increase
     the amount of  sulfur oxides or particulate matter emitted, or
     is  modified to utilize an alternative fuel, or higher
     sulfur content fuel,  shall not be subject to this paragrapn...
     The paragraph  referred to is entitled "Review of New Sources".
     It  is clear that under the old regulations, in effect prior
     to  March  1, 1978, an  increase in the sulfur content of  oil
     did not bring  a facility under PSD.  I am not aware of  any
     discussion in  the amended PSD regulations or the preamble
     to  the amended regulations which indicates a change  in  this
     policy.  I believe an  increase in the sulfur content of
     oil  is beyond  the scope of the preconstruction review

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requirements of the PSD regulations.

     As I'm sure you are aware, any SIP relaxation  that would
affect a PSD area must include a determination that  the
applicable. increment will not be exceeded.  The amount of
increment that will be consumed by a SIP relaxation  is
determined by modeling the difference between the allowable
emissions resulting from the new relaxed SIP limit  and the
source's baseline emissions level.

     Should the State of New York decide to relax its sulfur-
in-fuel regulations applicable to Con Ed, a demonstration
must be made that the PSD increments will not be exceeded.   In
this way, protection of the increments will be accomplished.'

     Should you have any further questions on this  issue,
please contact Libby Scopino at 755-2564.
                              Edward E. Reich
cc:  Darryl Tyler, CPDD
     Jerry Ostrov, OGC
     Stu Roth, Region II

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                                                                    4.12

„<«»»•>.
            UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
     ?                     WASHINGTON. O.C.  20460


                              APR  | I  1580

                                                     omee OF ENFORCEMENT
    MEMORANDUM

    SUBJECT:     Exemptions from PSD Permit Requirements  for Coal
                Conversions Resulting from DOE Prohibition Orders

    FROM:        Director
                Division of Stationary Source Enforcement

    TO:          Howard R. Heim, Chief
                Air Programs Branch - Region 3

         This  is in response to your memo of March 6, 1980, regarding
    the  applicability of PSD to Delmarva1s Edge Moor Power Station
    which must begin burning coal in response to a prohibition order
    from DOE.   As stated in your memo,  there is an apparent
    discrepancy between $169 of the Act and $52.21(b)(2){ii) of the
    June 19, 1978 PSD regulations as concerns the applicability to DOZ
    ordered fuel conversions.

         Section 169 of the Act indicates that for PSD purposes the
    term "modification" shall be defined as it is in §111 of the Act.
    Section 111 provides that, "A conversion to coal (A) by reason of
    an order under §2,{a) of the Energy  Supply and Environmental
    Coordination Act of 1974 or any amendment thereto., .shall not be
    deemed to  be "a modification..;" "These two sections of. the Act
    seem to indicate that certain DOE-ordered conversions should be
    exempt from the PSD regulations.   However, $52.21(b)(2)(ii)
    attempts to limit that exemption in effect by modifying it with
    the  phrase, "unless previously limited by enforceable permit
    conditions."

         The modifying phrase says that if a source holds a SI? permit
    which prohibits it from burning coal, it will not be eligible for
    the  exemption, even if the state plans to amend the SIP permit.

          In view of the discrepancy between §169 and §111, this
    Office, OGC, and OAQPS plan to recommend that the final Alabama
    Power rulemaking delete the limiting phrase.  I suggest that you
    advise Delmarva of our intent.  As  I understand it,  Delmarva will
    not  begin  the fuel conversion until late this year.  By that time
    it is hoped that the PSD rules proposed on September 5, 1979 will
    be finalized.  Deletion of the limiting phrase would exempt
    Delmarva from PSD review requirements.

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     Three questions about  increment  consumption were raised by
your memo and by a subsequent  telephone  conversation  between
Bob Blaszczak and Libby Scopino.  The  three  questions and  my
responses to them are as follows:

     1.  Q. - What is the mechanism for  evaluating  increment
consumption by a source which  is exempt  from PSD review?

         A. - Increment consumption is evaluated by the next major
source or modification that applies for  a permit in the area, or
by the permitting authority during  its periodic  increment
assessment.  There is no mechanism available to  stop  an exempt
source from constructing or modifying  even  if it would violate the
increment.  However, as soon as a violation  is discovered,  the
State would be required to restore the increment through a
revision to the SIP.  I agree  that the DCO process,  is not  an
adequate mechanism for considering  increment consumption.

     2.  Q. - What portion of  Oelmarva's emissions  should  be
counted into the baseline?

         A. - Delmarva's actual emissions, as of the  baseline
date, should be counted into the baseline.   In calculating  actual
emission levels, the hours of  operation, capacity utilization, and
types of materials combusted,  processed  or stored should be based
on the preceding year of operation unless another previous  year
would be more representative.

     Assuming the baseline has been triggered around  the Edge
Moor Plant, Delmarva's baseline emissions would  be  based on oil
because it has been burning oil since  1971.

     3.  Q. - What portion of  Delmarva's emissions  consume
increment?

         A. - The increment consumption  is'calculated by modeling
the difference between Delmarva's baseline emissions  and  its
allowable emissions after the  switch  to  coal. See  43 PR 26400&1
for discussion on increment consumption.

     If you would like to discuss these  issues  further, please
contact me cr Libby Scopmo of my staff  at  755-2564.
                                Edward  E.  Reich
cc: David Hawkins
    Walter Barber
    Richard Rhoads
    Michael James

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                     UNITED STATES ENVIRONMENTAL PROTECTIOM AGENCY          4.13
                                    JAN 2 2 1981
       HWOP.AHDO*

       SUBJECT!  PSD Applicability
                 Director
                 Division of Stationary Source Enforcement

       TC:       Charles  vhitnore.  Chief
                 Technical Analysis Section, Region VII

            This is  in  response to  your memo of December 4, 1980,  in which
       you requested  a  PSD applicability  determination for Cargill Inc.1*
       proposed ethanol plant in Eddyville, Iowa.

            The proposed  plant ia to be located in a designated  attainment
       area and will  consist in part of wet-milling and ethanol
       facilities  (collectively, the "ethane! plant").  Steam  and
       electricity for  the plant are to be generated by an on-site
       existing power plant, which  is to be converted into a co-qeneration
       unit.  The  addition of the ethanol plant will cause a large
       increase in the  hours of operation of the power plant and a  fuel
       switch to burn coal exclusively.

            I would  like  to mention first that the project may be  exempt
       from PSD review  through a "grandfather* exception if the  state
       air permit  for the  project was issued before August 7,  1SFO, the
       project would  not  have been  subject to the 1978 PSD reaulations,.'as
       stayed, and certain other conditions are met.   (See 40 CFP  52.21
            If the grandfather exemption does not spply the  addition  of
       the ethanol plant  should be  concidered a modification  to  an
       existing major  stationery source.  In order to determine  if  the
       modification  is major  and cubjcct to ^reconstruction  PFP  review,  it
       is first necessary to  determine if there will be a significant net
       emissions increase from the  modification itself.  FPJN  is
       intcrrr ot ino  the te*??fi ^.nj^—Ainj-gslpng incy^'se* as anv  s ion 1 f Icsnt
                in ggtuaJ—gSLi-g-g-lgns fgpgi g ghvclcaJ.
                                   incr eases or •»;







	
!
1
	 1 	 •"



EPA f»-> .220-1 02-70)

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              I'U'rD STATi . ::.. . .  ,-« «: iL P-?TECTIO». AGENCY
  "     .
  Deceabe:

TPY Of 60,  «nd  less than  40 TPT TOC. "All'of these emission
rate*  are de  minimus, (See 40 C7P. 52.2Kb) (23))  and therefore this
•edification  would not.be subject to PSD review.  Pegardless of
•whether or  not  this is determined to be a modification any
increase in eaission will consume increment provided the baseline
has been triggered.

     It is  also important to note that, in the absence of any SIP
or  pcrnit limitations, neither the  increase in emissions fron the
switch to burn  coal  exclusively nor  the increase in hours of
operation at  the power plant would be considered a modification
(See 40 CFB 52.2Kb) (2) (iii)(£>  and  (f)).

     This determination has been made with the concurrence of the
Office of Air Quality Planning and Standards and the Office of
General Counsel.  Zf you  have any questions regarding this memo,
please contact  Janet Littlejohn  of my staff at 755*2564.
                                         Edward E.  Peich
ect  Peter Kyckoff,  OGC
     Kike Trutna, OAOPS
     Harry1 Tyler, OAQPS

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                    ENVIRONMENTAL PROTECTION AGENCY
                  Or TICK or Air Duality Piuiininy and Standards
DEC 1 6 1980   ^search Triangle Park, i.orth Carolina 2/711
     Interpretation of "Significant Contribution"
                                                                             1.13
    Rlciiard G. Riioads, Uirector
    Control Programs Uevelopraent Division (MD-15)

    Alexandra S»iith, Director
    Air a hazardous Materials Division, Region X

         '.liJ..!l  in !li!> i'Sw U|^>1 iLdL .wil
Ul  SOV	AUI^Uiic wildw.U.U
     iaao-1
                                                                     OFFICIAL FILE COPY

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that his SO? impacts are significant only on tnc edge of the 5107 area which
is demonstrated to actually be in attainment of standards.  The source owner
also danonstratcd tiiat his impacts are not significant in the area of actual
violation of the S(L standards.  A second scenario is the case where the
owner dencnstrates Chat on the days when the 24-Iiour SO., standard violation
is actually occurring, the proposed source's 24-hour averaged impacts are
not significant.  The owner has also shown that on other days wnen the air
quality meets the 24-hour SO, stanoard, his impacts are significant but do
not cause the air quality to exceed the 24-hour starJard.  The third example
is where the area was only nonattainment for the SO-  annual standard.  The
source owner-shows his impacts on tne nonatta1oment area arc significant for
the 24-hour averaging time and Insignificant on an annual basis,  for all
three scenarios, the source owner has demonstrated that he will not contribute
to air pollution 1n violation of the HAAQS and has met the PSD review require-
ments of 40 CFR 52.2l(k)(1) for SO.,, providing that he will not cause any  new
violations.  Tills source would also not be subject to nonattainroent I1SR
requirements under 40 CFR 51.18(k).

     If you have further questions, please contact KiKe Trutna (FTS 629-5291}
for core information.

cc:  Q. Hawkins
     U. Barber
     Director, Air & Hazardous Materials Division, Regions I - X
     U1rector. Enforcement Division. Regions I - X
     NSR, PSD Regional Contact, Regions 1 - X
bcc: E. Smith
     B. Diamond
     R. Biondi
     0. Borchers  (ANR-443}
     E. Tuerk  (ANR-443)
     I. Artico (A-107)
     B. Steigerwald
     R. Campbell
     B. Hogarth

CPOD:I1ATrutna:js:rm 513:Mu:xS425:12-15-80
Control No. CPOD-308  Due:  11-6-80

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                   UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                     3eg-ion iO, 1ZOO S'.xtn Avenue, ;ead!e, «« ;o.0i
   DATE   27 OCT1S30

SUBJECT   interpretation of "Significant Contribution"
   «OM Alexandra B. Smith, Director
        Air & Hazardous Materials Division

     T0 Richard Rhoads
        Director, Control Program Development Division (MU-15)


        EPA new source review regulations contain a requirement that proposed
        major stationary sources not contribute (or significantly contribute) to
        air pollution in areas which are violating the NAAQS (40 CFR 51.24(k);
        52.21(k); 51.18(k); and Part 51, Appendix S, Section III).  The interpre-
        tation and implementation of this requirement may impact the final
        decision on the Northern Tier PSD permit application.   Because of the
        sensitivity and high national priority placed on the timely processing
        of Northern Tier's permit applications, we are requesting that you
        provide us with a response to the following questions  by November 7,
        1980:

        1.   The PSD regulations, in 40 CFR 5l.24(k) and 52.21(k), require  that
             the proposed source not "contribute to air pollution in violation
             of" the NAAQS.  Does this consider the concept of "significant"
             contribution as defined in Part 51, Appendix S, Section III. A?

        2.   The language in the PSD regulations (40 CFR 5l.l8(k) and 52.21(k))
             differs from that in 40 CFR 5l.l8(k) and the Offset Interpretive
             Ruling as to what the source is contributing.  In the PSD regula-
             tions the source must not contribute to "air pollution in violation
             of" the NAAQS.  In the Offset Interpretive Ruling the source must
             not significantly contribute "at any locality that does not meet
             the NAAQS."  Is, then, the determination of a source's contribution
             (or significant contribution) at a receptor in an area that does
             not meet the MAAQS independent of the concentration at tnat receptor
             at the time of contribution, or must that receptor be experiencing
             pollution in violation of NAAQS simultaneously with the contribu-
             tion of the proposed source?  (That is, simply modeling the pro-
             posed source or simultaneously modeling the proposed source and  all
             existing sources causing or contributing to the violations of
             NAAQS. )

        ,:a will greatly appreciate a timely response ;o tnese questions.  If  you
        ,iave any questions, please contact Mr. David Bray of my staff at 3-399-
        1125.

        cc:  D. Hawkins
             W. Barber
 IP* F«B 1370-4 (R.«. l-7i)

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                     UNITED STATES ENVIRONMENTAL PROTECT
  DATE FEB  9 1981     Office -r Air Quality Planning and Stanwurts               .  . .
                       Research Triangle Part. North Carolina 27711               ^
UBJBCT petitions for Review of PSD Regulations
       New Source Review Section (MD-15)
    T0: New Source Review Contacts
       Regions I-X

            The Agency has received several petitions for reconsideration of the
       PSD regulations promulgated on August 7, 1980.  Attached are initial  responses
       to three of the parties: the American Petroleum Institute, the Utility Air
       Regulatory Group, and the American Mining Congress.

            These documents were prepared by our Office of General Counsel ,  after
       consultation with QAQPS.  The policy approaches chosen were carefully
       considered for their potential to limit the scope of litigation.  Although
       litigation nay result, at the present time it appears that it will not
       be nearly as extensive as that in Alabama Power.  Review of these memoranda
       should  provide guidance on several issues arising from the regulations.

       Attachments

       cc:  U. Barber
            P. WycJcoff  (w/o attachments)
            D. Tyler
PA f~m 13»* (fe*.

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                                                             .14
   <   UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                     WASHINGTON. O.C. 20460
                        JAN 1 9 1981
                                           THC ADMINISTRATOR
David F. Petersf Esquire
Bunton & Williams
707 East Main Street:'
P.O. Bo* 1535
Richmond, Virginia  23212

Dear Mr. Peters:

     In your latter of October 6,  1980, the American  Petroleum
Institute (API) petitioned EPA to  reconsider  those portions of
the recent amendments to the Part  52 PSD regulations  which
established that the fugitive emissions of certain sources and
modifications are to be taken *-!•***•? account in determining whether
the permit requirements of the PSD regulations apply  to them.
The amendments appear at 45 FR 52676  (August  7,  1980).

     EPA hereby denies that petition on the ground that API made
no argument against the new approach to fugitive emissions which
EPA had not already heard and considered during  the rulemaking.
EPA intends to put a notice of this denial in the Federal Register
in the near future.

     In the October 6 letter, API  also asked  for clarification
of two of the new PSD provisions,  specifically,  Sections 52.21
(b)(3)(iv) and 52.2Kb) (23)(ii).   SPA has just responded to a
request from the Utility Air Regulatory Group for clarification
of the same two provisions* among  others.  A  copy of  the response
is attached.  Those portions of the response  which appear under
the headings "Question 2" and "Question 4" answer API's questions.

     Thank you for seeking clarification of the  new amendments
in advance of litigation.  If you  have any questions  about this
letter, please contact Lydia Wegman (755-0788) or Peter Wyckoff
(755-0766) in the Office of General Counsel.
cc:  All -counsel of  record  in  litigation on 45  FR 52676
     (August 7, 1980)
     Patrick Cafforty, Esquire,  Department of Justice
     Elizabeth Stein, Esquire, Department of Justice

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      'i
      l'  UNITED STATES ENVIRONMENTAL PROTECTION AGENC
                                                                4.14
     _
\   ,r                 '  WASHINGTON. 0 C  20460
  •: met**

                           JAN 1 9 1987


                                               T*e »OMINISTR*TCH
    Andrea S. Bear, Esquire
    Bunion & Williams
    1919 Pennsylvania Avenue, S.W.
    P.O. Box 19230
    Washington. D.C.  20036

    Dear Ms. Bear:

         This is EPA1 s response to your  letter of October  31,  1980,
    in which you asked for clarification of  some  of  the  recent
    amendments to 40 CPU 52.21  (1980), the PSD regulations govern-
    ing new source review in moat states.. The amendments  appear
    at 45 FR 52676* (August 7, 1980).
         In your view, the  new version of 40 CFS 52.21 provides that
    any increase in actual  emissions  which occurs (1)  as a result of
    a fuel switch,  (2) between August 7,  1977,  and the applicable
    baseline date and (3) at any major stationary source would
    contribute  exclusively  to the baseline concentration, if the
    switch is not a "major  modification"  by virtue of Section 52.21
    (b)(2)(iii). I/ Your first question is whether the agency agrees
    with that interpretation.

         SPA does- agree  with it, on the assumption that each of the
    major stationary  sources you had in mind is a source whose con-
    struction commenced  on  or before January 6, 1S75.  Any increase
    in actual emissions  that occurs on or before the baseline date
    at such a source  contributes exclusively to the baseline concen-
    tration, unless it results from "construction" that commences
    after January 6,  1975.   See 40 CFR 52. 2Kb) (13), 45 FR 52737;
    45 FR 52678 (3d column) ,~5T714 (2d column), 52717 (3d column),
    52719-20.   Here,  the fuel switch would net be "construction."
    The new regulations  define "construction" as "any physical
    change or change  in  she method of operation  . . • which would


    IT - section 52.2l(b) (2) (iii) , which appears in the new defini-
    ~   tion of "major  modification" at 45 FR 52735-36, excludes
         certain changes at a source from the phrase  "physical  change
         or change  in the method of operation" and includes others.

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                              2-


result in a change in actual emissions."  40 CTR 52.2Kb) (8),
45 FR S2736.  EPA intended Section 52.2Kb) (2)(iii) to govern
the boundaries of the phrase "physical change or change in the
method of operation" for the purposes of the definition of
"construction," as well as the definition of "major modifica-
tion," and you posited that Section 52.2Kb) (2)(iii) would
exclude the fuel switch from that phrase.

     EPA would not agree entirely with your interpretation, how-
ever, if any of the major stationary sources you had in mind is
a source whose construction commenced after January 6, 1975.
Any increase in actual emissions at such a source, including
any increase before the baseline date, affects increment
consumption.  See 40 CFR 52.21(b)(13)(ii)U), 45 FR 52737. 2/
                          UUJSSTXQCI *

     The new version' of 40 CFR 52.21 establishes that, in
determining whether a proposed change at a source would amount
to a "major modification," one may take into account any
contemporaneous ind otherwise creditable decreases in emissions
at the source.  New Section 52.2Kb) (3Hi*), 45 FR 52736,  further
provides in part that a decrease which occurs before the applic-
able baseline date is creditable only if it affects increment


     Against that background, you focus in your second question
on reductions in capacity utilization which do not result  from
demolition, such as an operational shutdown or derating of an
electric utility steam generating unit at a power plant.   You
ask:  under what conditions would a decrease in actual emissions
that occurs as a result of such a reduction and between January 6,
1975, and the applicable baseline date affect increment


     Such a decrease would affect increment consumption if the
unit at which it occurs is a major stationary source or major
•"yjjf ^<**^i*7%q^ whose construction '.'Jiiimenccd after January 6,
197S.  Any decrease in actual emissions which occurs at such a
unit, as well as any increase, counts towards increment consump-
tion.  See 40 CTR 52.21 tb) (13) (ii) (a), 45 FR 52737.


2/   In footnote 6 of your letter, you state that SPA at
~    45 ?R 52714 (1st column) "indicates that only post-
     baseline date voluntary fuel conversion emission
     increases are excluded from baseline concentration."
     In that passage of the preamble, however, SPA focused
     solely on such post-baseline increases; it  said nothing
     explicitly or implicitly about ore-easeline increases.

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                             -3-


     Even if such a decrease in emissions occurs at  a major
stationary source whose construction commenced on or before
January 6, 1975, the decrease would still affect increment
consumption, if the "short-of-demolition" reduction  in
capacity utilization from which it results amounts itself to
•construction."  Any decrease in actual emissions which results
from "construction" that ccemences after January 6,  1975, and
on or before the applicable baseline date at any major station-
ary source affects increment consumption.  See 40 CFR 52.2Kb)
(13)(ii)(a), 45 PR 52737; 45 PR 52719-20.

     In EFA's view, the regulations offer only two conditions
under which a "short-of-demolition" reduction in capacity utiliza-
tion would amount to "construction."  One condition  is that it
became federally enforceable under a construction permit condi-
tion established under a permit program contained in the state
Implementation plan (SIP).  Section 52.2Kb) (2) (iii) provides
for the purposes of the definition of "construction," as well
as the definition of "major modification,* that the  phrase
"physical change or change in the method of operation" in both
of those definitions includes any increase in hours  of operation
or production rate that would require a relaxation of "any
federally enforceable petait condition which was established
after January 6, 1975, pursuant to 40 CPU 52*21 or under regula-
tions approved pursuant to 40 CFR 51.18 or 40 CFR 51.24."  40
CPU 52.2Kb) (2) f iii) (£), 45 PR- 52736.  It follows that the phrase
also includes the inverse of such aa increase, namely, any
decrease in hours of operation or production rate which became
federally enforceable under any such permit condition.  See
also 45 PR 52720 (1st and 2d columns).

     The other and alternative condition is permanency.  Under
a standing interpretation of 40 CFR 52.21, a reduction in
capacity utilization would constitute a "physical change or
change in the method of operation" for PSD purposes  if it was
permanent. V  See Memorandum, September 6, 1978, Reich to
DvorJcin (copy attached).  Whether"a reduction was permanent
depends upon the intention of the owner or operator  at the
time of the reduction as determined from all of the  facts and
circumstances.  la particular, a reduction was peraanent if
the owner or operator intended to abandon the productive
capacity in question, that is, to withdraw it forever from use
in the production of income, including sale, exchange, or other
disposition.  SPA would presume that a reduction was peraanent


3/   A corollary or this proposition is that any ratum to the
~"    level of operation that prevailed just before a permanent
     reduction would be itself a "physical change or change in
     the method of operation," and therefore a candidate for
     PSD review.

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upon any strong indication  of  such an  intention,  for example:
establishment of any  federally enforceable  limitation that  would
prohibit any return to the  previous level of operation;  passage
of two years or more  without any return  to  that level; -or removal
of the productive capacity  from the emissions inventory  of  the
state.

                          QUgSTION 3

     The new definition of  "major modification" excludes from
that tera any voluntary fuel switch that meets certain condi-
tions.  One of those  conditions is that  the source was "capable
of accommodating" the fuel  before January 6,  1975.   See  40  CFR
52.21(b)(2)(iii)(e)(*»<»*» you  have  in mind*   To  deal at
the outset with cases that  are both concrete and  important  to
you should prove more efficient than for the agency  to hypothe-
size a range of possibilities.

     Zf you are willing to  provide those eases, please send them
to Michael Trutna, Chief, Hew  Source 'Review Section/  OAQPS, Mutual
Building, Durham. Scrth Carolina (919-541-5292).  Ee will have
the lead for developing the guidance.  Zn your communications to
him, please point out any fact pattern which reflects a  ease on
which the agency has  already spoken and  indicate  which SPA  office
made the determination •
     The first part of the definition of the  tera "significant"
in the new regulations q^r^^in? a list of pollutants  and  speci-
fies a de »*«*«»*« emissions level for each  of them.   See  40  CFR
52.21(bM23Mi), 45 FR 52737.  The second part then provides
that, for any pollutant "subject to regulation under  the  Act
that Cthe first part] does not list," the tera means  any  emis-
sions rate at all.  Id. §52.2Kb) (23) (ii).

     You ask that the agency delete the second part of  the
definition.  EPA agrees to do so, when it promulgates in  the
near future technical and conforming amendments  to the  regula-
tions.

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                                                          4.14
                             -5-
     Zn reassessing the second part of  the  definition, EPA has
concluded that it is superfluous.  On the one hand,  the  first
part already lists each of the pollutants that were  regulated
under the Act when EPA promulgated the  part.  On the other hand,
EPA plans to establish a de »j "*«•*• threshold for any currently
unregulated pollutant, when it regulates that pollutant.
                          gusanoH  s

     You interpret the new regulations  as providing  that  a
•minor' addition to a "minor" source would  escape  PSD  review
and, if it occurred before the applicable baseline date,  would
contribute to the baseline concentration.   Tour fifth  question
is whether the agency intended the  regulations  to  so provide.
EPA hereby confirms that it did.


                          QUESTX01I_6

     Section 52.21UH7) of the new regulations, 45  PR 52739,
exempts any major modification which meets  certain conditions
from the ?j.r quality assessments  relating to Class ZZ  areas.
Zn your last question, you asJc EPA  to confirm that it  did not
intend to limit a source to just  one such exemption.  EPA here-
by confirms that it did not.

     Thank you for seeking clarification of new regulations  in
advance of litigation.  We hope that the answers here  are
responsive to your questions.  Because  of the importance  of
these answers, we plan to incorporate them  into the  preamble to
technical *"«* conforming frTBH"
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         UNITED STATES ENVIRONMENTAL SRCTECTION AGENCY
                        WASHINGTON 2 C 20460


                           JAN 1 9 881

                                              THE ADMINISTRATOR

 Robert T.  Connery,  Esquire
 Holland &  Hart
 P.  0.  Box  3749
 Denver, Colorado  80201

 Dear Mr. Connery:

     Under a letter dated December  1,  1980,  you submitted on
 behalf of  the American  Mining  Congress  and several other
 mining companies (collectively,  "AMC")  a petition for recon-
 sideration of the  treatment of fugitive emissions in the
 August 1980 PSD regulations. I/  EPA hereby grants Part I of
 the  petition and will respond  to the balance as soon as
 possible.

     On their face,  the new Part 52 PSD regulations 2/ re-
 quire  that,  in calculating whether  any  source is or would be
 •major," one must  take  its quantifiable fugitive emissions
 into account,  as well as its non-fugitive emissions.  See 40
 CTS  52.21(b)(l)(i),  45  FS 52735;  id. 52.21(b){4), 45 FS~~
 52736.  They add, with respect  to a  modification, that one
 must take  into account  not only  its quantifiable fugitive
 emissions,  but also  any  increases and decreases in fugitive
 emissions  at the source that are quantifiable,  contempo-
 raneous with the modification  and otherwise  creditable.  See
 40 CFS 52.21(b)(2)U),  45 FS 52735?  id. 52.21(b)(3), 45 FS~~~
 52736;  and  id.  52.21(b)(2),  45 FS 527T7.   The regulations,
 however, then exempt from the  PSD permit requirements any
 source or  modification  which would  be major  only if fugitive
 emissions  were taken into account and which  would fall out-
 side the categories  on  a specific list.  See 40 CFS 52.21(1)
 (4)(vii),  45 FS 52739.                    	

     In Part I of the petition,  AMC identified  three ways in
which  those  rules, if taken  at face  value, would affect"AMC.
 First,  any  mining operation  in a  particular  class of mining
1740 C?R al.24, 45 FS 52729-35  (August  7,  1980);  40  CTS
     52.21, 45 FS 52735-41.

2/   la the interest cf brevity, we  focus  hers  only  on  the
"    relevant Part 52 rules.  The  relevant Part 51 rule's
     parallel them.

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                             -2-

operationsr 3/ would consume increment even before  the  base-
line date, i? construction on it commenced after January  6,
1975.  See 40 CFR 52.21(b)(13J(ii)  (a), 45 PS S2737.  Second,
if a company filed a complete application for a PSD permit
for a mining operation in that class under the 1978 PSD
regulations 4/ and the application  was the first one  for  the
area in question, the filing would  trigger the baseline
date, even though the operation would not have to have  a  PSD
permit under the 1980 PSD- regulations.  See 40 CFR  52.21(b)
(14)(i), 45 PR 52737.  Finally, if  an addition to a mining
operation in the particular class would have significant
non-fugitive emissions, .it could have to have a PSD permit,
because of the 'major" status of the operation.  See  40 CFR
52.21(b){2), 45 PR 52735.

     AMC pointed oat that the preamble to the 1980  regulations
indicates strongly that the agency  did not intend the regulations
ta have those consequences.  See, e.g., 45 PR 52680,  52689
and  52690-93.  AMC therefore as£ed  EPA to clarify whether it
intended those consequences and, if the agency did  not, to
amend the regulations to  conform them to its original intention.

     EPA hereby confirms  that it intended to establish  that
any  source which would be 'major* only if fugitive  emissions
were taken into account is not  to be considered 'major* for
any  PSD purpose, unless the source  belongs to one of  the
categories on the list which now appears in Section 52.21(1)
(4)(vii).  Similarly, EPA intended  to establish that  any  modi-
fication that would be "major*  only if fugitive emissions
were taken into account is not  to be considered "major* for
any  PSD purpose, unless the source  at which the modification
would occur belongs to one of the categories -on that  list.
SPA will amend the regulations  as soon as passible  to conform
them to that intention. 5/  The agency, however, does not
plan to, use the language~"AMC suggested on page  9  of the
petition.

     In granting Part I of the  petition, E?A does  not intend
to express any view on the merits of AMC's statements about
the  relevant portions of  the opinion in Alabama  Power or about
the  nature and significance of  parti colate matter  zrom mining
operations.

3V   I.e., those which  (1) would  emit particulate  matter in
     *major* amounts,  (2) would emit it  through  no stack or
     other functionally equivalent  opening  and  (3)  would
     emit  no other pollutant  in a significant  amount.

£/   40 CPR  52.21  (1980).

S/   EPA  also agrees  to promulgate  parallel  amendments to
~~   .the  Part 51 regulations.

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                                                            4.14

                              -3-

     Tnank you for  seeking clarification  of  the  new regulations
in advance of litigation.   If you  have any questions about
this response, please  contact Peter Wydcoff  (202/755-0766) in
the Office of General  Counsel.
                                    rely yours-



                                          Qostle"*
cc:  All counsel of record  in litigation
       on 45 ?H 52676  (August 1,  1980).
     Patrick Cafferty, Esq., Dept. of Justice
     Elizabeth Stein,  Esq.,  Dept. of Justice.

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                       UNITED STATE; ENVIRONMENTAL PROTECTION AGENCY
                 1  "  '*^lcs °* *1r Juai]ty Plcnmnc ana Stancaras
                 i                                    '
                                  Tnangie Park) NortnCarolina 27711

          3aseiine gate in Oeternnmng Net Emissions Increases
   FBOM   Darryl D. Tyler, Acting Director
          Control Programs Development Division (flD-15)

     T°   Allyn M. Davis, Director
          Air and Hazardous Materials Division, Region VI

               We have reviewed your January 28, 1981  memorandum in  which  you
          request guidance regarding the relevance of  baseline date  to  the
          determination of creditable contemporaneous  increases and  decreases
          under the PSD regulations.  Our response is  as  follows.

               As you noted, emissions changes can be  considered "contemporaneous"
          only if they occur no more than 5 years before  the commencement  of
          construction of the particular changes being considered.   40  CFR 51.21
          (b)(3)(ii).  There is, however, a limitation on  this 5 year period:  40
          CFR 52.21(b)(3)(iv) makes any increase or decrease in emissions  of
          sulfur dioxide (SO-) or particulate matter (PM)  creditable in  this
          netting process only if it is required to be considered in computing the
          amount of increment available.  This means that  no changes in  emissions
          of SO- or PM commencing prior to January 6,  1975 would be  considered
          in determining net emissions increases.

               Your question also addresses the treatment  of carbon  monoxide  (CO)
          emissions changes in determining net emissions  increases.  The answer
          is that criteria pollutants other than SO- and  PM, such as CO, are not
          subject to the limitation contained in S5Z.21(b)(3)(iv); thus, one looks
          only to the 5 year period proceeding the commencement of construction of  the
          modification triggering netting in determining wnich emissions changes
          will be netted.  It is possible that the PSD Set II  program will  develop
          increments for these pollutants and extend the  limitations contained in
          S52.21(b)(3)(iv) to them.  Until  such time,  however, no such  limitation
          exists for CO emissions reductions.

               I trust that this has been responsive to your request.   Please  contact
          Mike Trutna of my staff at 629-5292 if you have  any  further questions on
          this matter.

          cc:  W. Barber
               E. Reich
               8. Diamond
SPA F«tr» 13204 (St.. ]-76)

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                                                                      4.16
4.16
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
       CR:
March 31, 1981
Summary of PSD Policy Determinations
Thomas W. Devine
Air and Hazardous Materials Division, Region  IV
All State/Local  Directors
Region IV
Summary of PSD policy determinations during the  period
from November 13, 1980 to January 12, 1981:
   1)  Treatment of fugitive emissions with regard to
       PSD applicability.
   2)  A proposed physical  change must, by itself,
       result in a net increase greater than  de  minimus
       in order to be subject to PSD (see PSD/120).
   3)  Allowable emissions can be presumed to represent
       actual emissions for new sources and,  therefore,
       an increase in production at the PSD source is
       not an increase in actual emissions.  (Also see
       PSD/120).
   4)  Example 3 above occurs at an existing  source
       which did not have a new source construction
       permit under the SIP (see PSD/120).
   5)  An iron foundry is considered to be one of  the
       28 PSD categories (i.e., a secondary metal
       production plant) if it uses scrap metal  to
       produce Iron, even 1f the metal is poured into
       molds.
   6)  Applicability of offset requirements from new
       source with a SIP construction permit  whose
       permit conditions did not prohibit subsequent
       increases.
   7)  A whiskey distillery is not considered to be  one
       of the 28 PSD categories, specifically a  chemical
       process plant.  A chemical process plant  is any
       establishment in Major Group 28 of the SIC  Code.
       Beverage distilleries are in Major Group  20.
   8)  A proposed increase in emissions is not subject
       to PSD unless the triggering increase  is  of.the
       same pollutant as the one for which a  significant
       increase results.  (Also see PSD/120).
   9)  The SO ton per year exemption under 40 CFR
       52.21(1)(7) Is pollutant specific.
  10)  Operating permits are not Federally enforceable;
       however,  the State can impart Federally enforceable
       conditions to a construction permit issued  for
       the source in accordance with the New  Source  Review
       procedures of the SIP at the time of issuance.
3.16 [Hard Copy]; 2.15; 5.9; 10.22; 12.9; 13.5

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\      UNITED STATES ENVIRONMENTAL PROTECTION AGENCY      4'17

 £                    WASHINGTON  DC  20460
                          JUN24B8!
                                                 OFFICE OF ENFORCEMENT
  Mr. Amasjit S. Gill
  General Electric - Gas Turbine Division
  One River Road
  Schenectady, New York  12345

  Dear Mr.  Gill:

       This is to respond to your letter of May 19, 1981,
  requesting a determination of the applicability of NSPS and PSD.
  to stationary gas turbines converting front middle distillates
  to natural gas.

       The  information presented in your letter indicated that
  NOX and S02 emissions will decrease after the conversion  to
  natural gas and hydrocarbons, CO and particulate emissions will
  either remain the same or decrease.  As you correctly pointed
  out in your letter, the NSPS would only apply if there is an
  increase  in emissions of a pollutant to which the standard
  applies.   The NSPS for gas turbines applies only to NOv and
  SO? emissions.  Since the conversion from middle distillate
  fuel to natural gas for the turbines in question will cause a
  decrease  in NOX and SO? emissions, it is not considered a
  modification as defined in 40 CFR 60.14(a).  The turbines
  however,  could be subject to the NSPS if the co.nversion falls
  under the definition of reconstruction (See 40 CFR 60.15).

       PSD review would apply to "a proposed modification at an
  existing  major stationary source if it would cause a
  significant net increase in actual emissions of any regulated
  pollutant.  Zn the case of the gas turbine conversions outlined
  in your letter, PSD applicability is determined by evaluating
  any change in emissions rates caused by the conversions.  The
  data contained in your letter indicate that the emission  rates
  after the conversion will either remain constant or decrease.
  Actual emissions could increase only if (here is an increase in
  the production rate or hours of operation, both of which  are
  specifically exempt from PSD review.  (See 40 CFR
  5221(b)(2)(iii)(f)).  Therefore, since there will not be  any
  increase  in emission rates or any creditable increases in
  actual emissions, the conversion of the gas turbines will not
  be subject to PSD review.

-------
     If you have any questions concerning this determination
please contact Janet Farella of my staff at 202-755-2564.

                             Sincerely yours,
                             Edward E. Reich, Director
                             Division of Stationary
                                Source Enforcement
cc: Peter Wyckoff
    Mike Trutna

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GENERAL ELECTRIC COMPANY ONE RIVER ROAD  SCHENECTAOY NEW YORK 12345
                                            Teleonone
                                            (518) 385-4131
                                                         4.17

                                              GAS  TURBINE

                                              DIVISION



                                              OPERATIONAL PLANNING
     May 19, 1981
     Mr. Edward Reich, Director
     Division of Stationary Source Enforcement
     Environmental Protection Agency
     401 M Street, S.W.
     Washington, D.C.  20460
                                          Copy:  Don R. Gooowin, EPA-  —
                                                 Research Tnangle Park,
                                                 NC  27711
     Dear Mr. Reich:
                               Stationary Gas Turbines
                      Converting from Distillate to Natural Gas
     The Economic Regulatory Administration of the Department of Energy grants
     temporary public interest exemptions, from the prohibitions of the Fuel Use
     Act of 1978, to burn natural gas where such use displaces the use of middle
     distillates, thereby decreasing our reliance on imported oil.
   ^Existing gas turbines/">hirh 4Q.nnt have built-in dual-fual-capahiJlly,   ^L
     nuJU  I Us call new combustion hardwarexstTthat they can purn natural gas'-
     instead of middle distillates.  The ctnii.ii n m  IJ>BJ» uuiuiumr !>uui d conversion
     would be calssified a  "modification" or "major modification" and, therefore,
     subject the gas turbine to the New Source Performance Standards (NSPS) or a
     Prevention of Significant Deterioration (PSD) review.

     MODIFIED

     The definition of modification is 'provided in 40 CFR 50 as:


        60.14 (a)  "Except  as provided under paragraphs (e) and (f) of this
                    section, any physical or operational change to any
                    existing facility which results in an increase in the
                    emission rats to the atmosphere of any pollutant to
                    which a standard applies shall be considered a modifi-
                    cation  within the meaning of Section III of the Act..."
        60.2
"Standard*  means  a  standard  of performance proposed or
 promulgated under this  part."

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      GENERAL £'  ELECTRIC                                            Page 2
NEW SOURCE PERFORMANCE STANDARDS  (NSPS)

  Hydrocarbons, carbon monoxide and participates are specifically excluded
  from the NSPS promulgated on Sept. 10, 1979.   Justification for the exclusion
  was provided in the Oct  3, 1977 Federal  Register on page 53783.

     "HC and CO emissions from stationary gas turbines operating at peak load
      are relatively low because the higher the percentage of peak load at
      which a turbine operates, the more efficient the combustion of the fuel.
      Gas turbines normally operate at 80 to 100 percent of peak load with HC
      emissions averaging less than 50 ppm and CO emissions averaging less than
      500 ppm at 15 percent oxygen.  HC and CO emissions from stationary gas
      turbines, therefore, were not selected for control by standards of per-
      formance ."

     "Particulate emissions from stationary gas turbines depend on the ash
      content of the fuel and are minimal.   Consequently, particulate emissions
      from stationary gas turbines were not selected for control by standards
      of performance."

  Since there is no standard for CO, unburned hydrocarbons and particulates
  under NSPS for stationary gas turbines, NSPS would not apply even if there
  was an increase in the emission rate of these three pollutants.  As shown
  in the attached four tables, NOx and S02 decrease, and CO, unburned hydro-
  carbons and particulates remain unchanged or decrease.

PREVENTION OF SIGNIFICANT DETERIORATION (PSD)

  PSD review would apply if the emissions increase by amounts greater than
  de minimis levels.  Oe minimis levels, shown on page 52709 in the August 7,
  1980 Federal Register, are:
                                                    Equivalent Ibs/hour
                                      Tons/Year      (8760 hours/year)

       Carbon Monoxide                   100               22.83
       Nitrogen Oxides                    40                9.13
       Sulfur Dioxide                     40                9.13
       Particulates                       25                5.70
       Volatile Organic Compounds         40                9.13

  For those machines which are not restricted to a specific number of hours of
  operation per year by an enforceable permit condition, allowable emissions
  would be the hourly emission rate multiplied by 8760 hours per year.  Then,
  for PSD review purposes, net emissions increases should be evaluated against
  these allowable emissions to see if de minimis levels are exceeded.

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                                                                   4.17

 GENERAL ££  ELECTRIC                                             Page  3
PSD   (cont'd)


  As  can be seen from the attached four tables which provide uncontrolled
  emission rates for four GE gas turbines, the hourly emissions rates de-
  crease for NOx and SO? and remain unchanged or decrease for CO, unburned
  hydrocarbons and particulates when the fuel is switched from distillate
  to  natural gas.

  Therefore, these four gas turbine models would not require a PSD review
  when the capability to burn natural gas is added and the fuel is switched
  from distillate to natural gas, and "allowable" emissions, as opposed to~-
  actual emissions, are not exceeded on an annual basis.


Your  official concurrence with our interpretation is requested at your
earliest convenience.

Sincerely,
A.S'. Gill, Environmental/Regulatory Planner
/eb
Attach.

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     GENERALS ELECTRIC
                                                                        4.17
                                            P G  7 1 0  1  E
FUEL 	 -
LOAD *
Output , kW
Heat Rate(LHV), Btu/kWh
Fuel Consump. (LHV)IO6 Btu/hr
NOx as N02, Ibs/hr
*SOx as SO 2, Ibs/hr
Particulates, Ibs/hr
Hydrocarbons , Ibs /hr
(as CH4) ,
CO, Ibs/hr
NATURAL GAS
BASE PEAK

74,400 80,500
10,690 10,640
795.3 856.5
450 535
0 0
<28 <30
<12 < 12
< 21 <21
DISTILLATE
i
BASE PEAK

72,900 78,800
10,790 10,750
786.6 847.1
790 970
254 275
28 30
12 12
21 21
           •Distillate  Fuel with 0.3%  Sulfur  by Weight,
             Natural Gas  Fuel Containing  no Sulfur.
The results  are based on field and combustion  laboratory test  data from the
same or similar machines and  combustion systems, correlated to provide a
coherent oody of emissions data.  The data presented are for operation at
ISO conditions.

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      GENERAL £" ELSCTRIC
                                             P G 7 8  5  1
FUEL .
LOAD 	 	
Output ,
Heat Rate (LHV) ,
Fuel Consump. (LHV)
NOx as HO 2,
*SOx as S02,
Particulates ,
Hydrocarbons ,
(as CH4)
CO,
kW
Btu/kWh
106 Btu/hr
Ibs/hr
Ibs/hr
Ibs/hr
Ibs/hr
Ibs/hr
NATURAL GAS
BASE PEAK

61,300 67,700
11,000 10,920
674.3 7-39.3
325 405
0 0
<24 <26
<11 <11
<19 <»
DISTILLATE
BASE PEAK

60,000 66,300
11,130 11,030
667.8 731.3
510 640
216 237
24 26
11 11
19 19
           •Distillate Fuel with 0.3% Sulfur by Weight.
            Natural Gas Fuel Containing no  Sulfur.
The results are based on field and combustion laboratory test data from the
same or similar machines and combustion  systems* correlated to provide a
coherent body of emissions data.  The data presented are for operation at
ISO conditions.

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     GENERAL £2 ELECTRIC
                                          P G  5  3 4 1  P
FUEL . •
LOAD •
Output, kW
Heat Rate (LHV) , Btu/kWh
Fuel ConsumpILHV) ,106 Btu/hr
NOx as NO 2, Ibs/hr
•SOx as S02, Ibs/hr
Particulates, Ibs/hr
Hydrocarbons, Ibs/hr
(as CH4) ,
CO, Ibs/hr
NATURAL GAS
BASE PEAK

24,620 26,600
12,300 12,200
302.8 324.5
140 155
0 0
< 11 <11
< 5 <5
< 10 < 10
DISTILLATE
BASE PEAK

24,110 26,050
12,450 12,340
300.2 321.5
200 225
97 104
11 11
5 5
10 10
I
          •Distillate  Fuel with 0.3% Sulfur by  Weight ,
            Natural Gas Fuel  Containing no  Sulfur.
The results  are based on field and comoustion laboratory  test data from  the
same or similar machines and comoustion  systems, correlated to provide a
coherent body of emissions data.  The data presented are  for operation at
ISC conditions.

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     GENERAL £> ETfCTRIC
                                                                       4.17
                                           P G  6  4 4 1  A
FUEL •
LOAD •
Output ,
Beat Rate. (LHV) ,
Fuel Consump (LBV)
NOx as N02,
•SOx as S02,
Partieulates ,
Hydrocarbons ,
CO,
kW
Btu/kWh
,106 Btu/hl
Ibs/hr
Ibs/hr
Ibs/hr
Ibs/hr
Ibs/hr
NATURAL GAS
BASE PEAK

31,750 34,750
11,280 11,210
358.1 389.5
185 220
0 0
< 13 < 14
< 6 <6

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                     UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                                                        4.18
                                    JUL 13
          SUBJECT:  PSD Applicability  for Ashland  Chemical's
                    Anhydride Plant  in  Neal,  West  Virginia

          FECK:      Director
                    Division of Stationary  Source  Enforcement

          TC:        \'» Fey Cunningham,  Chief
                    Air Kedie and Fnergy Branch, Pecion  III

               In a rcemo dated May 27,  1981,  you requested a deterr.ir.rtion
          fror.  this Cffice regarding the applicability of  PSD review fcr a
          switch  in feedstock reterials at  Ashland Chericel's maleic
          anhydride plant in Neal, Vest Virginia.   Ashland proposes to
          charge  its feedstock fron benzene to butane, which vill
          clirinate benzene emissions but will increase  VOC emissions by
          approximately 2500 tons per year.   It is then  necessary  to
          deterrine if this -increase in^er.issions  is  subject to PSD
          review.

               The PPD regulations (40 CFF  52.2Kb) (2) { iii) (e))  exempt
          fror  review fuel svitches or use  of an alternate raw material if
          the source wes capable of accommodating  the  fuel or material
          before  January 6, 1975.  This exemption  is  a result of the
          intent  expressed by Congress  that Section 169  of the Clean Air
          Act (Act) adopt to the extent possible,  the  sane definition of
          •rodification" used in Section lll(a) of the Act (43 FP  26396).

              The definition of "modification" ,  which  is included in
          regulations  promulgated pursuant  to Section  111  of the Act,
          provides an  exenption for the use of an  alternate  fuel or raw
         materiel if  the facility was designed to accoisrodate the
          alternate use (4C CFP 60.14(e)(4)).  This section  goes on to
          state that:  "A facility shall be  considered  to be  deslqned to
          accorrodete  an alternate fuel or  raw material  if that use could
          be accomplished under the facility's construction  specifications
          as amended prior to the change".

              Inforcation fror Ashland Chemical indicates that the
          facility was originally designed  to use  either benzene or
         butane.  Contracts  for the construction  of  the facility,  \-hich
          included <«ual feedstock capability, were signed  in Kay" 1574.
         Thus, it appears that the facility was cspatle of  acccnroriating
         butene  as an alternate feedstock before  January  6,  1975  snrt the
                 ---••••   •        •   •       t;e  aut  ;eet  te IT'
*V¥BOL r&j/-

»*NAMgW3^!'>7"'"'
      j^ncjn •••,/;,,,.
DATE
EPA P.- 1326.) ((2.70)
/P"T^'''""[ T3?""m£" •f}		I	
                                                                   OFFICIAL FILE COPY

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     This determination  was  made  with  the concurrence of the
Office of General Counsel  and  the Office of Air Quality Planning
and Standards.   If  you have  any questions regarding this
determination, please contact  Janet  Farella of my staff at
755-2564.
                                 Edward  E.  Reich
cc: Peter WycJcoff, OGC
    Mike Trutna, OAQPS

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                 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY         4 lg
                              RegiocTTTl - 6th & Walnut Stj.                  '
                                Philadelphia. Pa. 19106                    • ^ ~ '-  ^

      PSD Applicability Determination  for
SUBJECT :As hi and Chemical Company              .      .      DATE:  MflY 27 1981

      W. Ray Cunningham,  Chief   (3AH10)
FROM:  Air Media  and  Energy  Branch

      Edward E.  Reich, Director   (EN341)
T0:    Stationary Source Enforcement  Division

      Ashland Chemical Company notified EPA Region III  on January  19,
      1981  that  Ashland wished to  change  the  feedstock  of its maleic
      anhydride  plant  in Neal, West  Virginia,  from benzene to
      butane.  Ashland stated that it  was  aware  of the  PSD
      requirements and believed  that they  did  not  require Ashland  to
      obtain a permit  before  changing  feedstocks.   The  company argued
      that  its Neal  plant was "capable of  accommodating"  butane
      "before January 6, 1975  and that  PSD,  therefore, did not apply,
      as specified by  40CFR 52.2Kb) (2) (iii) (e).

      On April 10, 1981 Region III notified Ashland that  we believed
      the companv did  require a  PSD  permit.  Region III stated tnat
      our view was that under the  PSD  regulations  a source could be
      considered "capable of  accommodating"  an alternative fuel as of
      January 6,  1975  only  if construction of  the  source  had
      •commenced" as of that  date.  We pointed out that Ashland could
      not be considered to  have  "commenced"  construction  as of
      January 6,  1975  since Ashland  had not obtained a  State
      construction permit as  of  that date.

      In a  meeting with us  on April  27, 1981 and in letters dated
      April 13 and 28, 1981,  Ashland objected  to our determination.
      Ashland claimed  that  the definition  of  "capable of
      accommodating" had not  been  specified by EPA, but that it
      should certainly not  be as stringent as  the  definition of
      "commence  construction."   Ashland pointed  out that  it had
      signed a contract for construction of the  Neal plant on May  1,
      1974  and that  this contract  called  for  a dual feedstock
      capability.  Accordingly,  Ashland argued that its Neal plant
      should be  considered  to have had the "capability  of
      accommodating" butane since  that time.

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                               -2-

Ashland also raised several additional issues.  Ashland claimed
that EPA should not consider Ashland's change to the use of
butane a "modification" since its Neal plant was designed with
a dual feedstock capability.  Ashland also claimed that 40CFR
52.21(i)(4)(i) exempted its Neal plant from PSD review.
Ashland reasoned that 40CFR 52.21(1)(4)(i) provides that its
Neal plant  is subject to the PSD regulations as they existed
prior to August*7, 1977, and that, since the Neal plant was
exempt from PSD prior to August 7, 1977, there is no basis for
imposing PSD requirements at this time.

Z would appreciate your opinion of whether Ashland is subject
to PSD.  Ashland has informed us that it must have our answer
to this question soon.  The company has indicated that it will
be required to replace the Neal plant's existing catalyst soon
and that it must decide whether to order a butane or benzene
catalyst.   Therefore, please provide us with your opinion by
June 10, 1981.

Z have enclosed copies of all correspondence relevant to this
case for your use.  Zf you have any questions or desire any
additional  information, please contact Ray Chalmers of my staff
at 215/597-8309.

Enclosures

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4.19
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
       CR:
                                                   J.19

July 31, 1981
Summary of PSD Policy Determinations
Thomas W. Devine
Air and Hazardous Materials Division, Region IV
All State/Local Directors
Region IV
Summary of PSD policy determinations during the period
from February 5, 1981 to July 15, 1981:
   1)  Is a source reactivation subject to PSD (see PSD/117)
   2)  The complete list of organic compounds not
       considered photochemically reactive and, therefore,
       not a VOC for purposes of PSD is detailed.
   3)  Construction of a major source in a nonattainment
       area projected to be attainment (based on the
       approved Part D SIP) before startup, is not
       subject to PSD or Part D requirements.
   4)  Determination of modeling baseline air quality
       levels for 3-hour and 24-hour averages is discussed.
   5)  If an ambient monitor has been shut down, data
       obtained may still be deemed pertinent and useful
       under certain conditions.
   6)  A minor source which locates within a PSD area
       and impacts a nearby PSD area may trigger baseline
       and consume increment within each of the areas
       under certain conditions.
   7)  A minor source which adds a major emission point
       could not escape PSD by considering previous
       decreases which cause the net increase to be
       less than the major source threshold.
   8)  An existing source may change its designation
       from major to minor by accepting a Federally
       enforceable 1imi tati on.
   9)  The 50 tons per year exemption under 40 CFR
       52.21(i)(7) cannot be claimed for an emission
       increase of any pollutant unless the increase of
       each•pollutanT~is less than 50 tons per year.
  10)  The air quality de minimus level for N02 is
       14-  g/m^ annual average, as stated in the
       published version of the regulation.
2.18 [Hard Copy];  3.19; 5.10; 6.11; 7.5; 10.23

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         UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                       WASHINGTON DC  20460
                                                         E OF
                                               AIR. NOISE. AND RADIATION

 Mr.  Stephen A. Goldberg                  _     '  '
 Mr.  Patrick M. Raher            ,..-':
 Hogan & Hartson                 ' '"  "                 ":
 815  Connecticut Avenue
 Washington, D.C.  20006

 Dear Sirs:

      This is in reply to your letter of July 23, 1981, in which
 you  posed several questions regarding the applicability of PSD
 and/or NSPS to certain changes proposed for a petroleum storage
 facility.  Your letter presented an outline of various physical
 and  product storage changes which will result in changes in
 emission levels, and then asked several questions based on that
 scenario.  I would like to preface our responses to your
 questions by stating that they will be based on the facts stated
 in your letter and the following assumptions: first, that no
 physical changes are being made to the storage tanks themselves,
 other than  the addition of mixers, and second, that the tanks
 were  capable of accommodating the new product prior to June 11,
 1973.   I would like to address*your questions in the order in
 which  they  were raised.

 A. General

      Under  PSD, the measure of the emission change would be the
 difference  between the actual emissions at the time of the
 proposed change and the emissions occurring as a result of the
 proposed product change.   Actual emissions are defined in
 general,  as the average emission rate of a source during a two
 year  period before the proposed modification (See 40 CFR
 52.21(b)(21)).

      Measuring the emission rate for NSPS purposes varies from
 PSD only to the extent that the actual emission rate of a source
 is determined at the time of the proposed change rather than
 determined  by averaging emissions from the previous two years.
 Also  the emission rate, for NSPS purposes, is determined on a
 kg/hr  basis rather than on a tons/year basis.

 B. PSD

      1.   Under the PSD regulations, a source is considered as
all the  pollutant emitting activities,  under common control or
ownership,  at contiguous  or adjacent sites, and under the same
r.ajor  SIC industrial grouping.   In the situation outlined

-------
in your letter,  the source would be  considered  an  oil  refinery
and the storage  tanks would  be considered  as emission  units
within the  refinery.  Based  on the previous mentioned
assumptions,  the product storage change, itself, is  not
considered  a  physical change or change  in  the method of
operation  (See 40 CFR 52.2Kb) (2) K   If, then,  the new.piping,
pumps, and  mixers are not built, the  product storage change
wtfuld not be  subject to PSD  review.

     The addition of the piping, pumps, and mixers is  considered
a physical  change.  PSD applicability would be  based on  a
significant increase in emissions resulting from these changes
and any other creditable contemporaneous emission  increases  or
decreases  (See 40 CFR 52.21(b)(3)).   If the emission increases
resulting  from the addition  of the piping, mixers, or  pumps  (or
any combination  of these items) are  greater than de  minimus  and
there are not sufficient creditable  decreases to offset  these
emissionsf  the changes would be subject to PSD  review.  The
emission increase from the product storage change  would  be
considered  a  contemporaneous increase,  and included  in the air
quality analysis.  The increase in emissions at the  tanks,
however, would be exempt from the BACT  requirements  (See 40  CFR
52.2KJH3)).

   2.(a) The  multiple tank stdrage change  in your  example would
be considered a  single project, under PSD.  The  emission  change
would be the  net total of non-exempt  changes, and  if this number
is greater  than  de minimus,  any other creditable contemporaneous
emission increases or decreases.  Thus, if none of the four
product storage  changes were exempt  the emission increase would
be 75 tons/year.

     (b)   If  the changes at  Tanks 3  and 4  are exempt,  the
emission change  for PSD purposes would  still be 75 TPY.
However, the  increases at Tanks 3 and 4 would be a
contemporaneous  emissions increase and  would only  be used  for
applicability purposes, if the increases at Tanks  1  and  2 are
greater than  de  minimus.  Since the  changes at  Tanks 1 and  2
would result  in  a net increase of only  20  tons  per year, less
than de minimus, the project would be exempt from  PSD  review.

     (c)  The emission increase associated with the  non-exempt
physical changes must be greater than de minimus before  the
contemporaneous  time period  is triggered.  Using  the emission
figures in  your  example, the contemporaneous  time  period would
be triggered  if  none of the  proposed changes are  exempt  and
would not  be  triggered if the changes at Tanks  3  and 4 are
exempt.

C. NSPS

     The product storage  changes  associated  with  installation  of
pining and/or pu-i?«  alone  (Tanks  1  and  2  in  tho Se-?le

-------
 situation)  would be  exempt from NSPS under 40 C.F.R. §60.14(e).
 Section 60.14(e)(4)  provides that the use of an alternative
 fuel  or raw material will  not by itself be considered a
 modification if the  existing facility was designed to
 accommodate that use.   Under 40 C.F.R. 60.2, the existing
 facility is defined  as 'any apparatus of the type for which a
 standard is promulgated in this part, and the construction or
 modification of wnich  was  commenced  before the date of proposal
 of  that standard.  .  .  ."   Under Subpart Ka of 40 C.F.R. Part 60,
 the  "affected facility" (the facility for which the petroleum
 storage standards  were promulgated)  does not include piping and
 pumps  external  to  the  storage tank.   As a result, even though an
 emissions increase would result from the product storage changes
 for which installation of  piping and pumps is necessary, under
 60.14(e)(4)  the increase would not subject the tanks to the NSPS,
 because the existing facility itself was capable of accommodating
 the new materials.

     Section 60.14(e)  would not exempt the product storage
 changes associated with installation of a mixer (Tanks 3 and 4).
 Since  the mixer would  be considered  part of the affected
 facility under  Subpart Ka,  and since these tanks apparently
 cannot accommodate the new non-homogeneous materials without a
mixer,  installation  of a mixer and a subsequent product storage
change resulting in  increased emissions would constitute a
modification of these  storage tanks  and subject them.to the
NSPS.

     Based  upon this discussion, the answers to your specific
questions are as follows:

   l.(a)  The product storage changes are exempt from NSPS review
 if the  piping,  pumps,  and  mixers are not built.

      (b)  The product storage changes are exempt if only the new
piping  and  pumps are built.

      (c)  The product storage changes at tanks where mixers are
built  would  subject  those  tanks (Tanks 3 and 4) to the NSPS.

      (d)  If  the piping, pumps,  and mixers are all built, the
product storage changes at  tanks where mixers are built (Tanks 3
and 4  only)  would  subject  only those tanks to the NSPS.  Again,
Tanks  1  and  2 would  be exempt.

     2.   Each of the storage tanks is considered a separate
 facility  and  the applicability of NSPS is examined separately
 for each  tank.   If one were to assume that none of the tanks in
 the sample  situation were  exempt under §60.14(e)(4), Tank 2
would  not be  subject to NSPS review  because there is no increase
 in emissions  at that tank.   The interconnecting of the storage
 tanks  by  a  pipe network would not affect this situation.

-------
      3.   There  is  no de  minimus increase threshold below which
the  NSPS  would  not apply to a non-exempt storage change.
Normally,  an  increase in the emission rate would be clearly
demonstrated  by manual emission tests or continuous monitoring
as specified  in 40 CFR 60,  Appendix C.  However, in the case of
•storage tanks,  emission  factors must be used to approximate the
increase  in emissions.   Emission factors do not provide the
necessary precision for  measuring storage emissions to enable
the  Agency to discern whether there was an increase of one ton
per  year.  As discussed  earlier, increases are determined on a
kg/hr basis,  so that a one  ton/year increase would result in an
emissions  difference which  could not practically be approximated
on an hourly  basis.

      One  further point should be made to clarify the impact of
NSPS review on  your example.  The piping and pump installations
may  be subject  to  the NSPS  for Petroleum Refinery Fugitives
depending  upon  the construction date and the regulation's
effective  date. This equipment is specifically listed as an
affected  facility  in drafts for this future NSPS.

      If you have further questions concerning this PSD and NSPS
applicability determination, please contact .Janet Fare1la or
Ann  Easthan of  my  staff  at  755-2564.


                                Sincerely yours.
                                Edward E.  Reich,  Director
                                Division of Stationary
                                  Source Enforcement (EN-341)

cc: Peter Wyckoff -  OGC
    Hike Trutna  - OAQPS
    Rich Ossias  - OGC
    Linda Chaput - OAQPS
    Dick Burr  -  OAQPS

-------
                                                                        4.20
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                              CABkC "MOGANOCB WASHINGTON '

                               TELEX as-27sr IN-L 6*353

                            TELECOPIER1 331--77O. 331-2637. 331-4769
                              WRITERS DIRECT DIAL
                                (202)  331-4682
                                       July 23, 1981
     Mr.  Edward Reich
     Director
     Division of Stationary Source Enforcement
     U.S.  Environmental  Protection Agency
     401  M Street, S.W.
     Mail Code:  EN341
     Room 3202-M
     Washington, D.C.  20460

                Re:  Request for PSD and  *:SPS
                     Applicability Deterrinations

     Dear Mr. Reich:

                This request for PSD and  NSPS applicability deter-
     minations is being  made on behalf of the owner of several petroleun
     refineries located  in several different Regions.   The owner
     anticipates common,  recurring IISPS  and PSD questions concerning
     the  petroleum storage tanks at these refineries,  and this
     request is therefore directed to your office  for  a single response,

-------
HOGA.V & HARTS ON
Mr. Edward Reich
July 23, 1981
Page  Two
rather than to each of the Regions.  The relevant facts and specific
determinations requested are set forth below:


I.  FACTS

          Due to various causes  (e.g., tank retirenent, new pro-
duction schedules, etc.), it is desireable from time to time to
change the product storage pattern at a refinery's petroleum
storage tanks.  In all cases, the affected tanks are and always
have been physically capable of storing the products they would
store after a pattern change. V

          All of the tanks which might be affected were constructed
prior- to June 11, 1973, and none has ever been the subject of a
modification within the meaning of the PSD and NSPS regulations.
The capacity of each tank exceeds 40,000 gallons.

          The potentially-affected tanks are presently loaded and
unloaded by pipeline.  Generally speaking, storage changes could not
be accomplished using existing pipelines, but could be accomplished
by other means, such as by truck, and the various sites are and
always have been physically capable of loading and unloading by
truck.  However, as a matter of convenience and practicality, it
would be desireable to build new piping for these purposes.  Any
new piping would be external to the tanks and would consist essentially
of changing the tank "feed" and "exit" lines to connect with different
existing main product lines.  Several new pumps, also external to
the tanks, would be required in conjunction with the pipeline changes.

          In some instances, storage pattern changes would result
in the use for blending purposes of tanks not previously used for
such purposes.  Mixing devices, internal to the tanks, would be
added to these tanks to facilitate the blending process.  The mixers
would not affect the storage capabilities of the tanks.
t/  The  refineries also are and  always have  been physically  capable
of accepting  any products which  are or might be stored.

-------
 OGAN&HARTSON

Mr. Edward Reich
July 23, 1981
Page Three
            The piping, pump, and mixer changes would not them-
  selves result in any emissions increases or decreases.  The only
  emissions changes would be those associated with the new product
  storage patterns.  At any given tank the new storage patterns
  might result in no change in emissions/ an increase in emissions,
  or a decrease in emissions.  Neither the physical changes  (piping,
  pumps, and mixers), nor the storage changes are proscribed by
  any applicable permits.

            A sample situation is attached hereto.  The four storage
  changes in the example are interdependent and constitute a single,
  integrated project.  It is requested that the specific questions
  posed in Sections II.B. and II.C. below be answered for the sample
  situation.   (The emission changes in the example should be assumed
  to reprerent the correct computation as per your response to the
  questions posed in Section II.A.)


  II.  QUESTIONS

       A.  General

            1.  Is the proper measure of the emissions change associated
  with a given tank the difference between its emissions with the actual
  product stored during the two years preceding the change and (a)
  its emissions with the proposed product, or  (b) its emissions with
  the "worst case" product that could be stored?  Why?

            2.  Does the answer to the preceding question differ for
  PSD and NSPS purposes?


       B.  PSD

            1.  Are the product storage changes in the example exempt
  from PSD review under 40 C.F.R. §52.21(b) (2)(e): V

                 (a)  if the new piping, pumps, and mixers are
                     not built?
  V   If  the  answers  differ  among  the  tanks, please indicate the
  answer  for  each  tank.

-------
HOGANS HARTS ON
Mr. Edward Reich
July 23,1981
Page Four
                 (b)  if only the new piping and pumps are built?

                 (c)  if only the mixers are built?

                 (d)  if the piping, pumps, and mixers are all built?


            2.  Is the multiple tank storage change in the example
  a single project from a PSD perspective, such that if it constitutes
  a modification, it is a single modification and the emissions
  change associated with the project is the net total of the non-
  exempt storage changes?  Thus,

                 (a)  if none of the four product storage changes
                     were exempt from PSD review, would the
                     emissions increase associated with the
                     project be 75 tons per year?

                 (b)  if for some reason the changes at tanks 3 and 4
                     were exempt under 40 C.F.R. §52.21(b)(2)(e),
                     but the changes at 1 and 2 were not, would
                     the emissions change for PSD purposes be a
                    -20 ton per year increase?  *•'-"

                 (c)  is the net total of the non-exempt storage
                     changes the proper figure to use in determining
                     whether a computation of the contemporaneous,
                     creditable increases and decreases for  the
                     past five years is necessary under PSD  Ruling
                     120?  For example, would the five-year  com-
                     putation be required under subpart  (a)  of this
                     question, but not under subpart (b)?


       B.  NSPS

            1.  Are the product storage changes exempt fron  NSPS review
  under 40 C.F.R. §60.14(e): V

                 (a)  if the new piping, pumps, and mixers are not
                     built?   /
  V  If the answers differ among the tanks, please indicate  the
  answer for each tank.

-------
                                                               a.'O
H O CAN & HART SON
Mr.  Edward Reich
July 23, 1981
Page Five
                  (b)  if only the new piping and pumps are built?

                  (c)  if only the mixers are built?

                  (d)  if the piping, pumps, and mixers are all built?


            2.  Are each of the storage tanks a separate facility,
  such that the applicability of NSPS should be examined separately
  for each?  Thus", assuming none of the tanks in the example were- -•
  exempt under 40 C.F.R. §60.14(e), would NSPS apply to tanks 1, 3,
  and 4, but not to 2? ' Does the existence of an interconnecting
  pipe network affect this result?


            3.  Is there any de minimis increase threshold  (e.g., 1 tpy)
  below which NSPS would not apply to a non-exempt storage change?


  III.  CONCLUSION

            If further information is necessary to process these re-
  quests, kindly contact either of the undersigned, at  (202) 331-4682,
  or  (202) 331-5783, respectively.

                                  Sincerely,
                                   */_.
                                  Patrick M. Raher
                                   tephen A. Goldberg
  Attachment

-------
TANK NO.
1




2
PHYSICAL CHANGE  */
piping only
piping and pump
                    piping and mixer
                    mixer only
PRODUCT

STORAGE CHANGE
    Yes
    Yes
                                Yes
                                Yea
     I:X/\MPLIS





VOC EMISSIONS CIIANC.C  */



      +50 tpy



      -30 tpy



      +10 tpy



      +45 tpy
                                                                      NET  =    +75 tpy
V   No associated emisuions change.


**/  Results solely from product  storage change.
                                                                                                  ro
                                                                                                  o

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              UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                JAN
                                       /223
   SUBJECTi  Accumulations of Emissions

   FPOMt     Chief, Regulations Analysis Section
             Stationary Source Corp 1lance Division

   TOt       Michael Johnston, Chief
             Air Operations Section, Region X, M-3202

        This is in response to your memo dated December 21, 19P2,
   concerning the application of the PSD regulations to accumu-
   lated emission increases.  Accumulated emission  increases
   are those increases occurring at major stationary sources
   which are not individually significant but when  totalled
   over * period of time do exceed the significance levels.

        As your memo correctly points out* this office did
   send out a memorandum on January 22, 1981 which  interpreted
   th«s PSD regulations BO as to exclude any modification from
   applicability that did not in and of itself result in a
   significant emission increase.  Thus, this would have the
   effect of eliminating from consideration those changes which
   occurred over time and whose emissions when reviewed as
   distinct entities are not significant, but when  combined
   would sfftiftfy the criteria for a significant emissions
   increase.

        While it is true that the preamble language that you
   cite might he a clear indication that the Agency intended to
   accumulate these de minimus change* at a stationary source,
   there was nothing in the regulations themselves  which clearly
   indicated that this vap in fact the case.  In fact, that very
   language you cite could also refer to the requirements for
   looking at contemporaneous emission increases and decreases
   when reviewing PSD applicability.  Only after much discussion
   among members of the Control Programs Development Division
   and the Office of General Counsel van it decided to interpret
   the regulatory language in the manner in which wo did.  The
   policy considerations which went into that decision were

' • 1 *"'&*„-
^^GSScl.
ATB N'/£7«








COMCURREHC



ES















i 1320.1 Q2-70)
                                                           OFFICIAL File COPY

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                             -2-
that  (1) the permitting requirements and the resources they
entail both en the part of the Agency and industry should
not be directed towards these "small* changes and (2) apply-
ing BACT to the last piece which triggered the review cnuld
prove to be a rather wasteful exercise.  (It was agreed to
early in the deliberations that under no circumstance would
EPA require retroactive application of BACT to the earlier
changes.)  It was also felt that it was unreasonable for a
source such as a refinery to have to keep records of these
de minimup emission increases with the sole purpose of
possibly applying the PSD requirements sometime in the future.
This would irean that another de minimus change, for little
environmental gain, would have to apply BACT to this latest
piece of the accumulation puzzle.

     At the same time this decision was being rade to exclude
accumulation from consideration, it was noted that we were
maintaining the goals of the program by recognizing that
although these de minimus increases were not reviewahle, they
did consune increment and they would be included when considering
contenporaneous emission increases and decreases.

     It is also important to note that at the tire this
interpretation was made we recognized that the regulation
was not clear and that a conforming amendment to the
regulations would be made.  By copy of this memo I am urging
the Control Program Development Division to initiate this
rulemaking if they haven*t already done so.  I would hope that
such a change could he published shortly.

     If I can be of any further assistance or if you wish to
discuss this further, please give me A call at 382-2831.
                        Richard Biondi
eci  Mike Trutna
     Peter Wyckoff
EN-341:R.Biondi:kw:Draft 12-30-82:382-2831
Final: 1/4/8 2 :amd
Disk:RPS*2:Accumulations of Emissions

-------
                     UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
   »re  DEC 2 1 1982


  JECT  Accumulations of Emissions


  ™OM  Michael Johfefon, Chief
        Air Operation^ Section, M/S 532
    T0  Richard Biondi,
        Stationary Source Compliance Division,  M-3202

        Texaco requested that EPA issue a PSO applicability determination  to
        construct a delayed coking unit at their Anacortes,  Washington  facility.
        In a letter dated November 11,  1982,  the Company  contends  that  PSO is
        triggered only if the net emission increase from  a  specific  project alone
        exceeds the threshold levels.   The Company indicated that  the source~oT
        their information was EPA headquarters  staff.  We contacted  Janet
        Parrel la who agreed with the Company's  position and informed us that
        accumulated emissions will not  be taken into account unless  a
        modification itself triggers PSO.  Janet sent us  a  copy of a January 22,
        1981 memo (Reich to Whitmore) to substantiate this  position.

        The guidance document offered by Janet  appears to be inconsistent  with
        the preamble to  the PSO regulations:

            •a series of individual de  minimus  changes at a stationary  source
            would be accumulated within a contemporaneous time  frame to see if a
            review would be required."

        A source, particularly a complex one  such as a petroleum refinery  or pulp
        mill could make  a series of de  minimus  changes without  becoming subject
        to PSD if emissions did not accumulate for PSO applicability purposes.
        Because such sources are capable of making phased approach modifications,
        the sum of which could deteriorate air quality significantly, the
        accumulation of  minor modifications should at least trigger  a review, the
        result of which  would be an accounting of emissions and their impacts.
        The practicality of planning phased modifications for purposes  of
        avoiding PSD review is probably very  limited.  However, we have seen
        instances where  review occurred on projects to be completed  in  increments
        that might have  been avoided if emissions did not accumulate.

        Definite guidance is needed on  the subject of accumulation of emissions
        for purposes of  PSO applicability.
EPA f~m 13304 (B... 3-741

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                UNITED STATEi ENVIRONMENTAL F5CT5CTION AGENCY
                                                                   4.23
   MEMORANDUM

   SUBJECT:  PSD Applicability Determination-Southwestern Public
             Service Company
   FROM:
   TO:
Director, Stationary Source Compliance Division
Office of Air Quality Planning and Standards

Acting Associate General Counsel
Air, Noise and Radiation Division

Allyn M. Davis, Director
Air and .Waste Management Division, Region VZ

Paul Seals
Regional Counsel, Region VI
        This is in response to your memorandum dated February 18,
   1983 concerning the applicability of PSD to the Southwestern
   Public Service Company's (SPS) steam electric generating station
   in AmarillOr Texas.  SPS operates a coal-fired steaxr. generating
   unit subject to the NSPS requirements of 40 CFP 60 Subpart D.
   SPS is proposing to modify. its existing air pollution control
   system which consists of two electrostatic precipitators (ESP)
   with 95 percent control efficiency of particulate natter followed
   by six wet scrubbers which remove enough of the remaining parti-
   culate matter to conply with the particulate natter emission
   standard of the HSPS.  The scrubbers also provide a significant
   effect on the S02 erissions by reducing their amounts by approxi-
   mately 40 percent.  These scrubbers, however, are not necessary
   in order for SPS to comply with the S02 requirements of the
   NSPS.   The control alternative SPS has selected for this purpose
   is low sulfur coal.

        The modification that SPS is proposing is the removal of
   the scrubbers and an upgrading of their ESP which will maintain
   their present level of compliance with the particulate matter
   NSPS.   However, reroval of these scrubbers will result in an
   approximate increase of 4400 tons per year of SO2*  The question
   vou raise then is, noes this modification of the control sytem
    onstitute a rajor
Fern I3JC-J 03-70)

-------
     previously  it has been c?ete mined that this change would
 not constitute  a i-odification under the NSPF prcgrar..  The NSPS
 regulations  at  40 CFS t>0.l4(e) contain a list which exempts
 certain changes  fron consideration as notifications.  Included in
 this list  is the provision at 40 CFR 60.14(e)(5) which states:

            •The  addition or use of any system or
            device whose primary function is the
            reduction of air pollutants except
            when  an emission control system is
            removed or  is replaced by a system
            which the Administrator determines to
            be less environmentally beneficial.*

     Under this  provision it was determined that SPS1 proposed
modification would not be less environmentally beneficial for
NSPS purposes since the change contemplated by SPS would still
result in  compliance with the NSPS for both particulate matter
and SC»2.

     The  separate question of PSD applicability arises because
the PSD modification provisions do not specifically contain an
exemption  such  a? that at S60.14(e) (5).  After consultation with
the Office of General Counsel, we both agree with the rationale
presented  by the Texas Air Control Board (TACB) in their January
21, 1983  letter  to Dick Khittington.  TACK believes that since
the NSPS  regulations provide en exemption froc the modification
provisions for  replacement of control equipnent, the PSD regula-
tions must provide this exertion as well.  This is because the
Clean Air  Act provides in Section 169 (1) (c) that for PSD
purposes  the tern modification shell be defined as that tern ie
defined in Section 111 (a) of the Act relating to KSPS.  EPA has
 interpreted this to mean that for PSD purposes Congress intended
 the tern modification to include all exemptions included in the
KSPS regulations promulgated under Section 111 of the Act prior
 to the date  of  enactment of Section 1*69.  See 43 FR 2639fi.  The
 control equipnent exemption was promulgatea prior to Section
 169.  Therefore, the term modification in the PSD regulations
 inherently encompasses the control equipment exemption.

     X wish  to  add, however, that just because it was determined
 that the  change  was not less environmentally beneficial under the
NSPS program does not mean the same conclusion must be crawn
with regard to  PSD.  Under the PSD prograir the concern is not
 solely the application of best technology, but also impacts on
air quality fror industrial growth.  The Region end State irust
evaluate  this situation to ensure there will be no adverse air
quality impact  before concluding that the control equipnent
 replacement  will not "be less environmentally beneficial.  If this
 determination can be made, the SPS generating station in Amarillo
nay be exempted  fron PSD as a major modification.

-------
                                                            4.22
    If you have any additional questions or consents concerning
this response, please contact Fich Biondi of SSCD at 382-2831  or
Sara Schneeberg of OGC at 382-7730.
    Ecward E. Reich                    Killian F. Peterson

cc: Peter Wyckoff
    hike Trutna
    Torn Diggs
EN-341:R.biondi:kw:nraft  4-2-83:Final <-7-83
Disk  RAS *3  Rich

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                                                                     4.23
            UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
 'ebruary 18,  1983

3SD Applicability  Determination:  Southwestern Public Service Company
                              _                    _
Allyn M. Davis,  Director   TTBu&Afl       ?auV Sfeals, Director
Air and Waste Management,  Region 6       Regional Counsel, Region 6

Ed Reich, Director
Stationary Source Compliance Division (EN-341)

Bill Pedersen, Acting  Associate General Counsel
Air, Noise and Radiation Division (A-133)


Southwestern Public  Service Company (SPS) owns and operates a coal -fired
steam electric generating  station in Amarillo, Texas known as the Harrington
Station which is subject to 40 CFR Part 60, Subpart D.  SPS is proposing
to modify its existing air pollution control system on its Unit 1, which
consists of two  electrostatic precipitators (ESP) with 95 percent control
efficiency of parti cul ate  followed by six wet scrubbers which function as
particulate control  devices.  The scrubbers also eliminate approximately
40 percent of the SO 3  from the stack gases.  This is the same unit which
was given an alternate visible emissions limit by EPA at 40 CFR 60.42
In an effort to  reduce opacity from Unit 1, SPS wants to remove its six
wet scrubbers  and  improve the efficiency of its two ESP's.  By letter dated
December  17, 1981,  EPA Region 6 (with Headquarters verbal concurrence)
agreed with the  Texas Air Control Board that the removal of the scrubbers
would not constitute a modification under NSPS 'based on 40 CFR 60.14(e)(5).

The Texas Air  Control Board, by letter dated January 21, 1983 (See Attachment
1), is now asking  EPA to agree that the removal of the scrubbers does not
constitute a modification under PSD since it did not constitute a modification
under NSPS.

The PSD regulations, as amended on August 7, 1980, (40 CFR 52.21) do not
contain a provision similar to the exemption found at 40 CFR 60.14(e)(5),
and therefore, it  appears the increase in SO 2 emissions by an estimated
4406 tons/year due to the proposed changes of SPS would be* subject to PSD
review.

The State, however, argues that the Clean Air Act requires that the same
definition of  moot fi cation be used in both the PSD and NSPS programs and
that, therefore, EPA should interpret the PSD requirements consistently
witn the  NSPS  requirements and exempt the SPS modification from PSD review.

To assure a uniform national application of the "modification" definition,
we are  requesting  guidance from your offices on whether an exemption such
as found  at 40 CFR 60.14(e)(5) would also apply for PSD.  We would appreciate
a  response from  your offices by March 15, 1983, so we can provide timely
guidance  to the  State and SPS.
  '6.

-------
                                                                 4.23
         TEXAS AIR CONTROL BOARD"//?'
JOHN' L ELAIR
Chairm«n
CHAFiLES R. JAYNES
Vici Cruirmtn
Bll.l STEWART. P. L.
l.xervtivc Director
                            B330 HWY 290 EAST
                           AUSTIN. TEXAS 78723
                              512/451-5711
                                                VITTORIO K. ARCEMTO. P. E.
                                                        BOB G. BAILEY
                                                        FRED HARTMAN
                                                    D. JACK KILIAN. >.'.. 0.
                                                 OTTO R. KUNZE. Ph. D.. P. E.
                                                        FRANK H. LEWIS
                                                       R. HAL MOORMAN
   January 21, 1983
   Mr.  Dick Whittington, P.E.
   Regional Administrator
   Environmental Protection Agency
   Region VI
   1201 Elm Street
   Dallas, Texas  75270
Dear
              it ting ton:
   On December 28, 1982. this Agency was  delegated  revised
   responsibilities for implementing the  Prevention of
   Significant Deterioration (PSD) program  in  Texas.  In
   accepting the delegation of that program, this Agency agreed
   to consult with the Environmental Protection  Agency  (EPA)
   Region VI on questions of interpretation  of those standards
   and to send you a copy of each interpretation made by the
   Agency.

   The purpose of this letter is to advise  you of our conclusion
   that proposed changes to be made by  Southwestern Public
   Service Company (SPS) to the existing  air quality control
   system on Unit 1 at Harrington Station near Amarillo, Texas,
   would not constitute a modification  of the  existing  facility,
   subjecting it to PSD review.  The reasons for our opinion
   follow.

   Harrington Unit 1 was constructed pursuant  to Texas  Air
   Control Board (TACB) Permit C-1388,  which was issued on
   August 28, 1971.  The permit limited particulate and sulfur
   dioxide (SC>2) emissions from Unit 1  to the  New  Source
   Performance Standards (NSPS) promulgated--on December 23,
   1971.  SPS elected to control particulate emissions  by using
   two electrostatic precipitators  (ESP)  with  95%  control
   efficiency followed by six wet scrubbers which  function
   particulate control devices.  Low sulfur coal was use
   control S02 emissions.

                                            RECEIVED

                                   -JT     JAN 2 7 1SS3

-------
 Mr.  Dick  Whittington         -2-            January 21,  1983


 Unit  1  has  not been able to consistently meet 20% opacity.
 SPS  has advised this Agency that it believes a significant
 number  of the opacity excursions can be directly correlated
 to the  operation of the scrubbers (copy of S?S' letter dated
 September 21, 1981 enclosed).  In an effort to reduce opacity
 from Unit 1,  SPS has requested permission from this Agency to
 remove  the  scrub'bers and/ concurrently, improve the
 efficiency  of the ESP.

 Although the  scrubbers' function is to control particulate
 emissions,  they also eliminate approximately 40% of the SC>2
 from the stack gases.  Consequently, their removal would
 increase S02  emissions from 6,209 to 10,615 tons per year,
 although the  increased level would still meet the 1971 NSPS
'S02 limitation.  Operation of Unit ^ without the scrubbers
 would not cause any change in the total emissions of
 suspended particulate but should result in significantly
 lower opacity.  The reduction in opacity would occur -as a
 result  of a decrease in emissions of fine particulates, which
 are  of  special concern to many environmental health experts
 because they  penetrate farther into the lungs and are there-
 fore much more difficult to remove.

 By letter dated December 17, 1981, Dr. Allyn M. Davis,
 Director of the Air and Waste Management Division of EPA,
 advised this  Agency that the removal of the scrubbers would
 not constitute a modification under the NSPS program.  The
 remaining question  is whether the removal of the scrubbers
 constitutes a modification for PSD purposes notwithstanding
 the inapplicability of NSPS.

 Part C of the Clean Air Act  Jthe Act)  requires  that major
 emitting facilities on which construction is commenced after
 August 7, 1977, must have permits.  "Construction"  is defined
 in Section 169(2)(C) of  the  Act as  follows:

       Section 169.  "For purposes of this part  -

        .  .  .  (c) The term  'construction1 when used  in
       connection  with  any  source or facility,  includes
       the modification  [as defined  i£  Section  lll(a}]
       of any  source or  facility."   (emphasis added)

 "Modification"  is  defined  in Section 111(a)  as  "any physical
 change in, or change  in  the  method  of  operation of,  a
 stationary source  which  increases  the  amount of any air
 pollutant emitted  by  such  source or which results  in the
 emission of  any  air pollutant not  previously emitted."

-------
Kr . Dick Whittir.gton         -3-             January 21,  1983


Although the statute clearly requires  that  the same defini-
tion of modification be used ir. both the PSD and NSPS
programs, EPA has adopted regulations  defining the  tern
differently for each program.  The NSPS definition  in 40 CFR
60.14(a) essentially, restates the statutory definition;
paragraph (e) then enumerates several  transactions  that are
notr by themselves, considered modifications.  EPA  determined
that the SPS proposal fell within the  terms of 40 CFR
60.14(e)(5) which refers to the removal or  replacement of
emission control- systems.  The PSD rules on modification .in
40 CFR 52.21(b)(2) vary from 40 CFR 60.14  in that there is no
specific provision similar to 40 CFR 60.14(e)(5).

Ordinarily, we would conclude that the absence of a provision
such as Section 60.14(e)(5) from the PSD regulations requires
that PSD new source review apply even  though NSPS does not.
In the present case, however, applying PSD, but not NSPS,
directly contradicts the Act's provision that the same
definition apply in both programs.

It is significant that "modification"  was  specifically
defined in the NSPS provisions of the  Act,  which was enacted
prior to the PSD program.  In setting  up the procedures and
criteria to be used in making the determination of  NSPS
applicability, EPA promulgated Section 60.14(e)(5)  on
December 16, 1975.  40 Fed. Reg. 58420.  In 1977, Congress
enacted the PSD portion of the Act, providing that  the
definition of "modification" be the same as the NSPS
definition.'

It is a well established principle of  statutory construction
that a  legislative body in enacting statutory provisions  is
cognizant of previous judicial and administrative
constructions concerning existing law, and does so  with great
care  for  the precise language which must  be used  to achieve
the desired result.  Congress, then,  was  knowledgeable  of
Section  60.14(e)(5) when  it enacted  the  PSD portion of  the
Act and clearly  intended  the PSD definition of  "modification"
to be  the  same  as  the  interpretation  given modification in
the  NSPS  regulations.  Therefore, EPA should interpret  its
PSD regulations  consistently with  its  interpretation of its
NSPS  regulations and conclude that  the above transaction  does
not  constitute  a  "modification"  for  purposes.of  the PSD
program.

Consequently,  it  is  the  opinion  of  this  Agency that the
elimination  of  the  scrubbers would  not constitute a

-------
Mr. Dick Whittington         -4-             January 21,  1983


modification of the existing facility and would not subject
Unit 1 to PSD review.  Please advise us by February 15, 19B3.
if you do not concur with this interpretation.

Sincerely,


     fi
      Stewart, P.E.
Executive Director
;
Enclosure

cc:   Mr. John L.  Blair, Chairman

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                                                                    4.23
        P.O. 30X1251   •   AMA31LLC. TEXAS 79170  •  305378-2".2l


  Certified Mail #796609                 SeptMMr ,u 1M'f
Mr. Bill Stewart
Executive Director
Texas Air Control Board
6230 Hwy. 290 East
Austin,'iX  78723

                         Re:  Harrington Station Unit One
                             Letter from ladd to  Stevart 4/1-1/51
                             Letter fron Bell to  Ladd 8/19/S1

Dear Mr. Stewart:

     Please find attached documentation submitted  for the consideration of the
Texas Air Control Board  in making a determination  that removal of the scrubber,
coupled  with  sufficient  ether improvements at Harrington Unit 1, will not be
less environmentally beneficial  than the existing  control system.

     Southwestern requests the TAC3 to cake a determination that the chanses
in  the  air  quality  control system (AQCS)  if successful,  will not  constitute  a
modification as defined  in 40 CTR 60.14 (e)(5) under the New Source Performance
Standards and  the Prevention of Significant Deterioration Regulations and to
so  advise the Environmental Projection Agency .

     In  the event that  these determinations are made by the TAGS and E?A and
the changes in AQCS are  successful, then  Southwestern intends  to request  fr=m
the TAC2 issuance of an operating permit which will allow operation of Sarnnrto:
Unit 1 vithout the  scrubber.

     Please feel free to  call Olon Plunk at S06-37S-2194  if you have any
questions.

                                            Cordially;
                                            Kenneth L.  Ladd
                                            Manager, Licensing  and
                                            Environmental  Affairs
 XLL:el
 Attachment
 cc:  '-. T.  Seitr
     u?3t Finn Volker
      £. T.  Manning
RECEIVED
                                                                        r
                                                                           i
                                                         f
    •*""*_!  - ** •
    J _   ••  '  *~<- •
      LEGA

                                                           DIVISION

-------
                                          -.22
       SPS REQUEST TO TAGS




                FOR




ADMINISTRATOR DETERMINATION Or RE?»10VAL




                 OF




   SCRUBBER AT HARRINGTON UNIT 1
                             SE3 i H:-"5 E^ . "SS"

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                       INTRODUCTION' AND BACKGROUND







     Harrington  Station, locstec  near Amarilio, Texas,  is  Soutnwesterr.



Public Service Company's (SPS)  first caal-fired facility.   The Texas  Air



Csntrol Board (TAGS) issued construction Permit tC-1388 on  August 2S.



1S73.  Unit 1, wnicn is a 350 Mw unit, began  operation in 1S76  and was



the first steam electric  power plant in Texas to  burn Western coal.



     During the design stages a few power plants In other states  were



burning  Western coal and problems  were  developing in  controlling  mass



emissions of particulate from these sources.  The best  available control



technology  for particulate at the time of  initial construction for  coal-fired



plants was  generally  accepted to be  electrostatic  precipitators.  Ccal  frcm



the western states  generally has a very  loxv sulfur content.  This low



sulfur content allows the coal to be  combusted without  significant  degrada-



tion of air  quality by sulfur dioxide. Unfortunately,  this low-sulfur



content characteristic has an  adverse effect on collection  of fly  ash  oy



eiectrcst-tic precipitstor.



     SPS became aware of these  particulate collection problems through



contacts with  other utilities and  as  a result,  studied some of the  plants



that were  experiencing  difficulties,   in an effort to solve the orobiem of



fly ash collection, SPS  selected an air quality control system  (AQCS) that



consisted of two 95%  efficient Research-Cottrell electrostatic precipitatcrs



(E5?) for primary  fly ash  removal and a  final .removal  system consisting



of six wet  particulate scrubbers supplied by Combustion  Engineering



Ccmpany.  inc.
                                  .1.

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                            OP£3A-!3N Cf ACCS

     The  cpersion  of  the AQC£  syrisrr. is bes: explamec by  referring is
a flow aiacram '.see  Figure  I).  The c=al is  g.-sunc to a oo«.\der before
being blown  into the ooiler.   As th=  surninc coal releases  its chemical
energy,  ash is formed.  The  asr,  iskas two  farms:  cne is  called "bcttom
ash" which,  as  it is formed, drcps ts the bottom of the boiler furnace.
It is estimated that  about 20% of the tctal ash in  the  coal will take  the
fo~rm of bottom ash  and be collectec as rocks which are  brsksn-up  and
flushed with water  to  a disposal  area.  The second form of ash  is a
material  of face powder consistency snd is  called "fly  ash".  About 305, of
the total  ash  will be fly esn.   The flv  asr  is easily t!3«vn  out sf the
boiler furnace sv the  flow sf  f!ue cas.
     An electrostatic prscipitator  removes the fine  psrticulate from the
boiler  flue gas  by passing all the particulste lacen gases thrsucn a sirrng
electromagnetic field  (refer to Figurs  1).   The dust or particulate becomes
a  charged particle and is attracted to a collection surfacs that has the
opposite charge.   The collection surface  is periodically clesnea by 3  "rio"
operation whereby the particles are dropped  into hoppers beneath the  ESP
unit.  This operation may appear simple,  but.Xhe mechanism is very
complex ar.d all the  exact forces mvoivec are net yet defined.  The
design grain  (ceding  is 2.0 grain/SC? at '.he inlet  and spcrcsimat=K  0."
grsm.SC? ai '..Ke outlet.  The two ur.'ts  csntsir  9.-7Z discr.ar^e eiec-
trsdes sr.c l."1?- collector slates.  ==sec uccn :r.e acv-a: =ss -''cx\ :r.a

-------
                                                                   4.23
specific ccllec'.inc ares (SCA)  is approximately 250 ftVJCCO f:~  oer nninute.



     The  scrubcer system is a aifficull system to design snc keep ooerst-



ing.  II is, in reaiity, a chemical p ar.t insice the power piaru.  When the



flue gases with seme fly  ash are exscsed tc  spraying water,  the whole



atmosphere inside the scrubber bscsmss csrrosive, mudcy and  subject to



the formation of scaie deposits  as rard as concrete.   The prcper opera-



tion of this "chemical  plant" requires careful control  of many chemical



reactions.







                               SCRUBBER







     The  operation of a wet scrubber  may best be understood by  "follow-



ing" :he  path  sf a. parcel of flue gas thrcucn :i-.e scrubier.  The 350°F



gases  and fly  ash are cooled  to about ZSO°F  by heat extractors and  the



heat is saved  for later use.  As the parcel of flue gas  enters the scrub-



ber, it is hit  by an initial spray of  scrubber spray  water jus:  under the



marbie bed.  T.-ns further drops the temperature to  about 140°F.   Some



of  the fly ash drops into the  large tank  under  the scrucber.  The parcel



moves up through a turbulent  marble  bed and at the same time is spraved



with thousands of gallons per minute of scrubber spray water.  Carbon



dioxide and sulfur dioxide gases are dissolved into the spray water.  In



 the marble bed the particles of fly ash are contacted by the spray water.



The f:y ash and sprsy water  fall into the larg*  tanks under the scrusber.



 The wet  flue gas continues up the scrubber where it moves  througn the



 mist eliminators where the remaining solids snc moisture crcsie:s  are



 removed.   The next steo m the process  rene=:s the  gas  acc\5 the ce*



 cc:r.t  :c  accut 2CC°C  \z srsvsnt ccncensaticn "-zrr, •"orrr.ing ..". '-"e cuds.
                                  -3-

-------
fans anc :he 230-foot  slack.   The hesi recuirsc tc  cry :ne  carc=i or' flue
gas tha; was ccllected and  saves in  ire firs;  s;=ce  is new usec  to hea:
the xvet exiting  flue gas.  The result snould be a clean,  dry gas raacy
for the stmesohere.
                                    r-N UNIT 1
     The AQCS for Harrington Unit  " has  been quite  successful in meet-
ing mass emissions of participate.    A New Source Performance Test
(NSPS)  conducted  on JuJy  19,  1977 by SPS revealed the following:  .045
lbs/10  Btu input and  .054 lbs/10 Btu input.   However,  the  unit  has had
problems meeting the opacity standard (20%).   The  U. S. Environmental
Prelection Agency  (EPA) reccgniied these prtaiems and  set the NSPS  for
opacity at 35% with one 6-minute  average per  hour of 42% allowed  for this
unit as provided for under 40  CFR 50.11(e).
     SPS petitioned the T*Y=S  Air Control Beard  (TAC3) for an  alternate
stancard;  however,  prior to  granting the  alternate  standard, the TAGS
requested furtner  testing.   Eased upon  past  experience  and  recent critics!
examination SPS believes that 'a significant number of opacity excursions
can be cirectly correlated with scrubber operation.   Because of opacity
prsniems associated  with the scrubber ana the significant cost  savings to
SPS ratepayers, SPS's goal  is  to improve  precipitator operation to the
pc-.nt that all environmental standards can be jiiet without operation of  the
scruocer.
     SPS believes  that advances  m the electronics ir.dus:.-'./ and the
electrostatic =rsc:oita:sr meustr.  rr.s\ ailoxv :mcrcve'nen:s to the  exis::rc
oracrciratsr  sc  that  cr.r.siiar.ca .vnn  :r.e  NSPS arc :ie TAC5 ZC'l  ccac.v.

-------
                                                                   4.23





star.isrd msy be achieved.  Before S2S- can pursue the possibility  of



ciscsniinuing the operation of tne scrucber  £t ^arrinctcn Una 1,  it is



necessary to cemonstrste  that the additional paniculate control acmevec



by the electrostatic precipirstor is ~.ct less environmentally beneficial than



continued operation of the scruboer.   This is requirea  to avoid :he



possibility  of the sourca being  cefir.ee =s  a  mccificaticn as defined in  JO



CFR 60.14(e)(5) with respect to  New Source Performance  Stancarcs and



Prevention of Significant Deterioration.







                  IMPROVED ENVIRONMENTAL QUALITY







     SPS believes there are three factors  which cculd contribute to im-



proved environmental quality ir. the  event that the scr-jbor-  is shut



down.



     First,  discontinued use of the scrubber, even with the  use of lov.--



sulfur caal,  will probably result  in increased S09 emissions.   Even ther,



however,  higner ambient concentrations  of SO. will not be continuous



because of an  increase  in stack ess  temperatures  from approximately



180°F to 250°,because  higher  stack gas temperatures  result in increased



plume buoyancy affecting the overall  plume rise.   The increased plume



rise ultimately contributes to lower ancient concentrations of SO,  for
                                                               4.


worst case meteorological  conditions.   See "Methodology",  below.



     The  second factor which  could  contribute ;o  improved environmental



quality  is the  elimination of approximately 17 tens, cay of  scrucoer slucce.



Annual  quantities prcducac by Unit  1  are presented in Tacle 1.

-------
                                       1
                    vear	Tans of slude* srs
                    197S           -.0.3T,
                    1979            6,534
                    19SO            5,170
     These  quantities are represented on a dry ossis; actual  tonnages are
approximately J0% higher due  to water content.  This is a significant
quantity of slucce each day and  it  is presently being lancfilled en site.
The  slucce material is actually a low grade gypsum (calcium sulfate).  Its
msrkataoility  is poor and as a  resu't, SPS has not  been as successful  in
developing  any  market for  this sludge.  In the event that the scrubber
can  successfully be shutdown  this  significant amount  of  scrubber sludge
will  not be  produced.
     The  thirc  factor which could  improve envircnmental quality is the
pcSiiciiity of i—proved opacity.  As previously discussec, -acs.nt critical
examination of operations at Harrington  Unit  1 revests a correlation betueen
a significant numoer of opacity excursions and scrubber operation.
These are primarily due to low flue gas temperatures resulting from  the
scrubser  operations  and sootblcwing of the heat extractor and  scr-_-=oer
reheaters (see  Figure 1).  Discontinuing use of the scrubber  may he!p
achieve lower opacity.
      it is  suomitied  that the combination of these three factors sstisf'es
the  "not less environmentally  beneficial  criteria."


                               METHODOLOGY


      SPS  pe-fcrmsc  computer dispersion  moceling for Har-irgton S:3::rr-.
Sur-r.g :r.e ear'ier 2e»-Tii:t:nc  process for  the facility.  Th:s mcce-ir.c  i\=s
                                  -5-

-------
performed wiih :he EFA  CRSTI?. rnoc=i and  a cscy  :'  the fnccs me



previously suomitted  :o  the TACH.  C3STER Model is  6  smcis source



computer  program designec to simulate atmcsshenc  dispersion s-ccssses



far the purpose of calculating smsicit cancentrsticn levels of  atmosphere



contaminants.  CRSTc'a  has  the cscaoiiity of precicting  both  short-term



and  long-term concentrations,  v.e  understand thst  the TAGS  a.xecjtae an



expanded version of  TEM-3 modeling,  utilizing a full year of Aharillo



meteorology.  TEM-8 (Texas Episodic  Model  Version 8) is a  Fortran  com-



puter  program developed by the TAC3 designated to predict  ground



level,  short-term concentrations of atmospheric pollutants.



     A review of the modeling, with the  EPA's  CRSTER  model, indicates



that day  309 exhibits the meteorology whicn creates the  hignest ambient




ccncentrsticns of SO? fcr :he  2-:-hour sversging time,   nssj-'ti  sf TAC5



moaeling  also indicate day 309 is the day that meteorology causes the



highest ambient  concentrations.  In addition, the expanded version  of




TEM-8 predicts that  cay 324 results  in the  hignest 3-hour a\.er=ce  conce"'



tration of SO. with the  existing ooeration.



     Based  upon  the previous S?S results with the CRSTE3 p-rgrsm snc



the  TACB expanded  TEM-S model, S?S performed additional modeling



using  the TEM-S mocel  with metsoroicgical data fr;rn  day 30S  snc dav 33-1



of the 195-t Amarillo  weather data.  This modeling \>as determined for :\\o



cases, first with the scruboer in service and second, with the  scrubber



 net  in service.   The highest concentrations predicted by the modeling is




 presented in Table 2.

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Averaging Time
3 hr.
24 hr.
Annual
Table
W/O Scruccsr
ug.'-n3
58.4
21.0
0.47
2
W/Scru5ber
ug/m"
64.1
13.1
0.53

NAACS
ug/m"*
1300
365
80
     Under these worst case conditions for  the existing scrubber opera-



tion,  and based upon the 3-hour  averaging tir.s, ambient concentrations



of SO. are actually less  with  the  scrubber off than with continued scrub-



ber operation.   These concentrations  are  approximately 5% of the second-



ary ambient air quality standard.  However, for  the  worst case  24-hour



averaging time, the operation without  the scrubber is higher than with



scr-jbcer operation.  These ar-bient czncsntravsns  of SO. ara cr.'y  5.S°



of the primary ambient air quality stancard.



     The 24-hour worst  case  does net cppear to  be a significant represen-



tation of the average ambient air  quality  because of the annual average



results.   The annual  average concentration has been preaicted b\ using



the Texas Air  Control Board  TCM-2 model.  TCM-2  (Texas Climatcicgicfil



Model Version 2) is a  Fortran computer program  developed by the TACB



designed to predict ground level,  long-term concentrations of atmospheric



pollutants.This  mccel also predicts a  smaller highest  concsntration without



the scrubber  than  with the scrubber. This is due  to the fact that  under



rr.cst  meteorological conditions  the  additional pXjme  rise will cause the



ambient  csncsntrstion  to  be less,  even though the  emission rste rr.3> be



higher.   These concentrations are 0.6^, of the annual standsrc -.vii^cu; the



scruzser and 0.7°0  with  the scrubcer.
                                 -8-

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                                                                   1 "1
     Operation  of  Harrington Unit  1  xvithout the scruocer will have no




significant  adverse impact upon ambient air qualitv-  'n 'set, annual



average and worst case  3-nour average ccncentrations  of SC- are pre-



dic'.sd  to be less.   Discontinued us* s~' the scrubbers at Harrington



Unit 1  will  also  result in the reduction of approximately 17 tons/'day of



scrubber sludge,  making land resources available  for other  uses.

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                                            HARRINGTON  UNIT NO. i
                                Air Quality Control  System Schematic Flow Diagram
                                                                     r
                                         WET SCniJdOEn
                                                                            Meal
                                                                           Extractor
iwder
    -*"
           BOILER
                                       Electrostatic
                                       Preclpllalor
                                      Electrostatic
                                      Preclpllalor
                                                                       Vllocil
                                                                         Exlroclor
                                                                        .	J
Figure
                                                       1.

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                   UNITED STATE? ENVIRONMENTAL PROTECTION AGENCY          a. .24
      MEMORANDUM

      SUBJECT:  Nee Ealsston Increase Under PSD

      FROM:     Sheldon Meyers, Director
                Office of Air Quality Planning and Standards

      70:       David P. Howekamp, Director
                Air Management Division - Region IX


           This is in response co your nemo dated-May 3, 1983 to
      Kathleen M. Bennett concerning net ecission increases under PSD.
      I have looked into the question of inconsistency in interpretation
      of che de mininus provisions of the PSD regulations as raised in
      vour memorandum, and have concluded that the interpretation made
      by che Stationary Source Compliance Division is the most practical.

           The issue, as I understand it, is whether sources and control
      agencies need to aggregate small changes (i.e., those below de
      minimus levels) which occur over time so that once the cumulative
      effect of the changes exceeds de minimus levels, PSD is triggered.
      The preamble to the PSD regulations implied that this aggregation
      would be required.  However, the Agency has maintained since 1981
      that no such aggregation is required.  This interpretation was
      first articulated in a memo from SSCD (then DSSE) to Region VII
      dated January 22, 1981, and has beeo reiterated in memoranda
      to Region XX and X since then.  The SSCD interpretation was
      concurred in by the Office of General Counsel (Peter Wyckoff) as
      legally supportable since the regulations themselves are not clear.
      The policy considerations leading to this interpretation were:

           (a) aggregation could impose a significant resource
               burden on sources which might never become subject
               to PSD.

           (b) aggregation would only require installation of BACT
               level controls on the last piece of equipment which
               triggered the review, with a ciniaus air quality
               benefit, and

           (e) air quality wou-ld be protected since these changes
               would consume increment in any event.

ajflMAue}
DATE ^

t^ ~. 	 ' " i /V • 1 J^^
mf*~ *&^*j£t. 1 / - • Jf 	 ! f^_ft—t f*
6-z-ai \t - is 1 //i/<

i
	 r
<
R3 i
CONCURRENCES
	 _j 	 1 	 ] 	 [ 	
i
	 f 	 : 	 T 	 T 	
SPA Fwm 132M 02«7«)                                                   OFFICIAL F1L£ COPY

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     In conclusion. I fetl t^t the inerrr:. cation race
cv SSCD tc be  the most reasonable.  ncvev<_r, I recoer.ize
that a clarifying amendment tc the PCT reflation is advisable
ar.d will include it as part cf the next set of proposed changes
co che PSD regulations.'  If you would like to discuss this
further, please contact me.

cc:  Darryl Tyler
     Ed Reich
     Peter Wyckoff
 En-341:R.Biondi:kw:Draft 5-31-83  382-2831  Rm.  3202 Final 6-2-83
 Disk RAS #3 Rich

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                                                                            d.25
                                                                   w/


                                                                   /
 Kr.  Rlcaard E. Grwnlck
 Director,  Air Prognw
 AlabiMa DprflrtPV'fit of tnvli
   Maaagonent
 StatA Capitol
 Mont^oiserr, Alabama  30130

 Dear Mr. Grasnlcx:

 This is to iefore fwi of A^loc IT policy caucuraias  aivlicaoillty ol
             to RPA KD'
fuel nj.vyr.icns, la ganenl. are eeanai.ienrf o&icr nsniimtion& for purr.
of  PSD rcvl*1* proviainji etlnsion iacrcaa** are si,:ni;icanc.   IV>^*VI
Srction 5tt.2lfb)(2)(iil)(«) proviites aa exntfiCion :or orruin ivx-1
ftnn ttw» iaa.1or mMifleatien definition.  Specitic?uly. tais  *rctio
a fuel eonwarsiea froc PSU r**vi?« if e>» aoureu ins CR^Aclt1  ol «cewrar>ii lint
th* alt»»rBat* fi»l bpron* Janary *», ItfTS amf f*uer.
oy  any enforee&olw pprmii ocoJltiocs.
The qumtlen  cuen,  i« «igtfc««r tttf aonrc*, i.e.,  tne
of acermueatins coal beiore Jnmar? 6, 19?b.  For j*nirpnses ol coitv^rtirv, cr.i
or tram, iwt  t»t all  of o*» boilers. »» interpret Ciis j^oviaion at rcq-jirtr.*.
tisat tfw plant  bi? eapaol« of rvcernag. transfemz^. am: pn.-;«nuii coal, *r..-
tten tnuwfrrrirsg enal and ccmoustlns coal in tt*.- units  b:in^ cocv,-ri'-t , &.-.•
          of  tte as*i.  It is not nrcnseary for th** nlaac tu br o^»c,iv />•
         oat  ali thrwe onenticne for p^rery cntt at  cnv  scuirc", »••;•.: c-,i" i«-r
for tt«*»p bPlns conwrt&o.  On the- ottie>r twn'i, li tfti* r-l^ut i- oiv-.i-  r-
r^c^vlnB onal  aac  transremini aod corNisting it ora« in errs- ut:.-r unit
at t&t? plant, cut ooc uv on»> brinv: conv«rt^i, ttv-
       capable  of accoaaoRstl^ coal fur purpo«e«> ot u«ai.
Jf» orttt-r  ftsr a plant to OP eapablP of acsoenotiaui:^ ccul.  u.»- ccRttny r».».t
     not only  tnat  the ocsign (i«' a ssi.-,cr srvjificstin
    tftc pKrsca'Js of  t^o rpvis»w if tap rwsultins spt miissicr  incrf~!«' > *r
si^n 11 leant,  fcij appiicaoiiity w>jla or tAsoa on ail naission inert-':*-- -.
Jrca* tiw ccnvrrsicn,  inclucinr. esiasion ificrcns*^ rm«» tn" cn»l <»'vj »#-i
hiincLin,; ami «tom^» faclliti»-i AS «^11 as freer uu? hc>il»-r^,  sines- r.li t.-.c
          are causiTn by tne conversion tc coti.

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                                    -2-
Qnce PSD applicability has been established, It is the« necessary to
undertake a BACT analysis as required under 52.21(J).  That section, under
paragraph 3 ..requires that a major acidification apply "best available
control technology lor each pollutant subject to regulation under the Act
for which it would result in a significant net emissions increase at the
source.  This requirement applies to each proposed emissions unit at which
a net o«in|gg'i«ns Increase in the pollutant would occur as a result of a
physical change or change in the method of operation in the unit."  This
section clearly intends that technology review be assessed on an emissions
unit rather than on a plant-wide basis.
In the sifytl0" where the individual boiler *»•«"£ converted is capable
of firing coal with ""TI-»"»I physical changes (for example, change of
burners only) , BACT analysis would apply to the coal handling and storage
equipment as well as any other necessary new equipment.  BACT analysis
would not apply to the boilers since individually they were designed  to
acccmnodate coal and therefore will not be undergoing a physical change or
change in the method of operation*

In addition to the BACT analysis, requirements for a source impart analysis
(52.210O). air quality analysis C52.21(m)), additional impact analyses
(52.21(0)), and Class I analysis (52.21(p)) most be satisfied.
     the source has satisfied these requirements  and tee notice and public
ccoment provisions, permit approval may proceed.
Region  17 is aware that guidance on **tt? question has been somewhat vague,
and possibly conflicting, in the past.  Therefore, we do not  ty***** for
tM*$ policy to be applied retroactively where it was  not adhered to.  Bow-
ever, we do expect °*"*ti Rpgjnn 17 state to iomediately  implement this
policy  for «T* future ^ppn «•«>*< n-ty determinations.
Sincerely yours,
James T. Wilburn, Chief
Air & Waste Management Division

cc:  Ed Reich
     Darryl Tyler

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                  UNITED STATES ENVIRONMENTAL PRGTE";:-N AC- = S
                                                                  1.25
     MEMORANDUM

     SUBJECT:  Request by the Hawaiian Electric Co. to Bum 2.07
               Sulfur Fuel Oil at their Kahe Units 01-5

     FRO!!:     Sheldon Meyers. Director^/
               Office of Air Oualilty Planning and Standards

     JO:       David P. F.owekamp, Director
               Air Management Division. Region IX


          This is in response to your memorandum to me concerning the
     impact of the FSD regulations on Hawaiian Electric Co.'s (HECO's)
     desire to switch to 2.0* sulfur fuel oil at Kahe Units #1-5.  In
     January 1979, your Region issued a PSD permit to HECO for the
     construction of Unit #6 at their Kahe Generating Station.  As a
     condition of that perait, HECO agreed to lip it the sulfur in fuel
     combusted at Units #1-5 to 0.5*.  This licit was deemed necessary
     in order to prevent predicted violations of the S02 NAAOS.

          Prior to the actual startuo of Unit #6, existing Units 41-5
     actually burned somewhat less than the 2.01 sulfur oil.  Since
     the startup of Unit 16, these existing units have complied with
     the Q.5S sulfur oil requirements.  Over the past year. HECO has
     gathered actual air quality data which they contend shows.that
     the sulfur in fuel limit for Units'41-5 could he raised to 2.02
     without violating the HAAQS for S02.  As a result of this new
     data. HECO has reauested Region IX to amend thef0.5S sulfur in fuel
     conditions to 2.OS.  The Agency has determined that such a change
     in a FSD permitted limit would constitute a major modification
     and require the source to undergo PSD review.

          Since that response has been transmitted to HECO, an additional
     question of applicability has arisen.  That question is whether
     the 0.5" limit can be amended to a level which would provide for
     no significant net contemporaneous increase over the source's
     actual S02 emissions prior to burning 0.5" sulfur oil in a manner
     to avoid triggering a full PSD review.
                                  CONCURRENCES
1
       IJc"
          *
I

Fo«» 1320-J112-70)
                                                                OFFICIAL FIL£ CCi

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     A review  or  che PSD renila-iors reveals that a major
modification will occur as a result of ".  . ..any physical change
in or ehanre in t^e method of operation of a major stationary
source that would result in a significant net emissions increase
of any pollutant  regulated under"the Act."  It has previously
been determined that the proposed switch in permitted levels will
Qualify as a chanee in the method of operation.  The next ouestion
is whether it  will result  in a significant net eminsicrs increase.
Net emissions  increase p-eans,

          "the amount by which the sur of  the following
           exceeds zero:
           (a) Any increase in actual emissions free a
           particular physical change or chance in method
           of  operation at a stationary source; arc
           (b) Any other increases and decreases in actual
           emissions at the source that are contemporaneous
           with the particular change and are otherwise
           creditable."

Contemporaneous is defined as,

           "... occur(ing) between:
           (a) The date five yeare before  construction
           on  the particular chance coonences; and
           (b) The date that the increase  fror the
           particular change occurs."

An increase or decrease in actual emissions is creditable

           "... only if  the Administrator has not
           relied on it in issuing a permit for the
           source under this section, which permit is
           in  effect when  the increase in  actual emissions
           free the particular change occurs.*

     Since the proposed increase, that is  the change from G.5?  to
some higher  level, will occur within five  years of the  time when
Units *1-5 switched to 0.55, such decrease can be considered
contemporaneous for PSD purposes.  In order for ouch a  decrease
to be acceptable, it must  also be creditable.  Since the issuance
of the original PSD permit to HECO was conditioned on Units #1-5
agreeing  to  burn  0.5* sulfur fuel, it must be.concluded that  EPA
relied on this decrease in issuing the original permit.  The
preamble  to  the August 7,  1980 regulations states at page 527C1 :

           "... a reviewing authority  'relies1 on an
           increase or decrease when, after taking the
           increase or decrease  into account,  it concludes
           that the proposed project would not cause or
           contribute  to  a violation of  an increment or
           arcbient standard."

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                                                                 4.26
      The facts  In  this case, as described in your
 "lesrly  state that the reouirecent to burn 0.5« sulfur fuel ir
 Units *1-5 was  considered necessary to prevent predicted violations
 of  the SO UAAOS.   Further, additional sources have been or
 are beinp permitted also in reliance on HECC's continued cor.T>liance
 with the 0.5* sulfur fuel oil renuireaent of the existinr rerrit.
 Therefore, any  atterrpt on the part of HECO to increase their
 sulfur in fuel  Levels such that there will be a significant
 increase in SC2 emissions will reouire a PSD percit.

      This response has been coordinated with the Office of General
 Counsel and they concur in its findings.'  Should you choose to
 discuss  this matter further, please contact me.

 cc:  Darryl Tyler
      Bill Pederson
      Mike Trutna
      Peter Wyckoff
      David Rochlin
EN-3AT:RBIONDI:aind:Draft:5/25/83:ftn3202:382-2831 Final:kaw:6-7-83
Lexitron:RAS#2:Item 12

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          UNITED STATES ENVIRONMENTAL S9OTECTION AGENCY

                      WASHINGTON 0 C 20460
                               JUL 28 -S3
                                                      OFFICE OF
                                                 AIR. NOISE AND RADIATION
SUBJECT:   PSD Applicability Pulp and  Paper  Mill

FROM:      Director
           Stationary Source Compliance  Division
           Office of Air  Quality Planning  and  Standards

TO:        Michael M. Johnston,  Chief
           Air Operations Section -  Region X


     Your  request dated  July 6,  1983, to  Mike Trutna  concerning
a PSD  applicability issue has been  forwarded  to my  office  for
response.  Your  request  concerns a  pulp and paper company
that is proposing to install a  bleaching  plant and  a  larger
digester.  While the construction of  these  units does not  by
itself cause  increased emissions, emissions from the
recovery boiler  as a result of  this construction activity
will increase above the  significance  levels,  but remain  below
the maximum design permit levels.  Your question, is whether
this a major  modification under the PSD requirements.

     The PSD  rules at 40 CFR 52. 21 (b) (2)  define major
modifications as "any physical  change in  or change  in the
method of  operation of a major  stationary source that would
result in  a significant  net emissions increase of any pollutant
subject to regulation under the Act."   Net  emissions  increase
is defined as:

           "the amount by which  the  sum  of the
           following exceeds zero:  Any  increase
           in  actual emissions from  a particular
           physicial change or change  in method
           of  operation at a stationary  source; and
           Any other increases and decreases in
           actual emissions at the source  that are
           contemporaneous with  the  particular
           change and are otherwise  creditaole."

Major modifications are,  therefore, determined by examining
changes in actual emission levels.  Actual  emissions  are
defined as:

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                             -2-
          "the actual rate of emissions of a
          pollutant from an emissions unit, as
          determined in accordance with sub-
          paragraph (ii)-(iv) below

   (ii)   In general, actual emissions as of a
          particular date shall equal the average
          rate, in tons per year, at which the unit
          actually emitted the pollutant during a
          two-year period which precedes the
          particular date and which is representa-
          tive of normal source operation.  The
          Administrator shall allow the use of a
          different time period upon a determination
          that it is more representative of normal
          source operation.  Actual emissions shall
          be calculated using the units actual
          operating hours, production rates and types
          of materials processed, stored, or combusted
          during the selected time period.

   (iii)  The Administrator may presume that source
          specific allowable emissions for the unit
          are equivalent to the actual emissions of
          the unit.

   (iv)   For any emissions unit which has not begun
          normal operations on the particular date,
          actual emissions shall equal the potential
          to emit of the unit on that date."

Since this source has been in operation for some time,
subparagraph (iv) does not apply. " Your memo indicates that
the recovery boiler is subject to a permit limit.  Ray Nye of
your staff has informed my staff that this permit limit binds
the recovery boiler to a level of 0.1 gr/dscf,'but does not
provide any discussion on the unit's operating rate.  The
recovery boiler has operated in the past at a rate of
450 tons/day, consistent with existing digester capacity.
Although the regulations provide a presumption for the use of
allowable emissions when source specific limits are established,
the preamble at 45 FR 52718 (August 7, 19800 states that:

          "The presumption that Federally enforceable
          source specific requirements correctly
          reflect actual operating conditions should
          be rejected by EPA or a State, if reliable
          evidence is available which shows that actual
          emissions differ from the level established
          in the SIP or permit.1*

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                             -3-


Therefore, since  the recovery boiler could not have operated
at a level higher than that provided by the existing digester
capacity, any  increase in actual emissions at the recovery
boiler which will result from the increased capacity providded
by the larger  digester oust be considered for the purposes of
PSD applicability.
                •
   Once  it is  determined whether there is a significant net
emissions increase  (summing the emission increases from the
larger digester, new bleaching plant and the increased
operation of the  recovery boiler) in conjunction with any
contemporaneous emission increases and decreases, the PS-D
requirements should be applied, including BACT and air quality
analyses.  The regulations at 40 CFR 52.21(j)(3) require that:

          "A major modification shall apply best
          available control technology for each
          pollutant subject to regulation under
          the  Act for which it would result in a
          significant net emissions increase at
          the  source.  This requirement applies
          to each proposed emissions unit at
          which a net emissions increase in the
          pollutant would occur as a result of
          a physical change or change in the
          method of operation in the unit."

Since the recovery boiler itself will not be undergoing a
physical change or change in the method of operation, it will
not have to apply BACT.  However, all emissions increases
must undergo air quality analysis and will consume applicable
air quality increments.

     This response has been prepared with the concurrence of
06C and  CFDD.  Should you have any questions concerning it,
please contact Rich Biondi at 382-2831.
                                    Edward £. Reich
cc: Mike Trutna
    Peter Wyckoff
    Dave Rochlin

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                   —.-^SuED STATES ENV'RC^ENTAL PROTECTION A
            II-    '  •'        Region  10,  Seattle, Washington  9B101
   0* "6
                                                                                  4.27
SU8J5.C-  ?SD Applicability
         Michael  M.  Johnston,  Chief
         Air Operations  Section

     TO  Mike Trutna,  Chief
         New Source  Review Office

         A pulp and  paper  company  is  in  the  process  of  transferring the mill to a
         new owner.  The new owner is proposing to install a bleaching plant and a
         larger digester to accommodate  market demand for bleached pulp.  While
         the construction  of these units do  not by itself cause increased
         emissions,  emission from  the recovery boiler as a result of this
         construction  activity will Increase above the  significant levels, but
         remain below  the  maximum  design permit limits.  17*6 company contends that
         PSD is triggered  only if  the net emissions  increase from the specific
         modifications alone exceeds  the threshold levels, thereby releasing the'
        .project from  Psu  review.  .

         Region 10 has interpreted the term  "net emissions Increase" as any
         significant increase  in actual  emissions from  a physical change or change
         in the method of  operation at a stationary  source.  In this case, do we
         look at emissions from the specific modifications themselves or do we
         look.at the overall change in actual emissions from the entire facility?
         The recovery  boiler throughput  was  limited  due to the size of the
        'digester.   Although the recovery boiler can accommodate the larger
         digester, we  feel  that the physical change  and change in method of
         operation constitutes a modification.

         If you have any questions please feel free  to  contact me or Ray Nye of my
         staff at (FTS)  399-7154.

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*'•
            •JNITED STATES ENVIRONMENTAL PROTECTION AGENCY           4 2S

                       WASHINGTON. O.C. 20460
                                 JUL 28 IS33            OFFICE OF
                                                   AIR. NOISE AND RADIATION
  SUBJECT:  Bridgeport Harbor Coal Conversion

  FROM:     Director
            Stationary Source Compliance  Division
            Office of Air Quality Planning  and  Standards

  TO:       Barley Laing, Director
            Air Management Division, Region I


       This is in response to your June 8,  1983 request for  an
  applicability determination concerning  the conversion to coal
  of Bridgeport Harbor Unit #3.  Your opinion is that  the conver-
  sion should not be subject to either PSD  or NSPS  requirements
  because you feel the boiler was originally designed  to burn
  coal, and as such is exempt under §60.14
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                               -2-
     The NSPS  for electric utility steam generating units,
40 CFR 60, Subpart Da, provides an exemption from coverage
for conversion from oil to coal.  See §60.40a(d):

     Any changes to an existing steam generating
     unit originally designed to fire gaseous or
     liquid fossil fuels to accommodate the use
     of any other fuel (fossil or nonfossil) shall
     not bring that unit under the applicability
     of this subpart.

A less inclusive provision exempts coal conversions from
Subpart D NSPS applicability if the existing facility was designed
to.accommodate coal before August 18, 1971.  See §60.14(e)(4),
which exempts  from the modification provisions:

     Use of an alternative fuel or raw material if,
     prior to  the date any standard under this part
     becomes applicable to that source type, the
     existing  facility was designed to accommodate
     that alternative use.  A facility shall be
     considered to be designed to accommodate
     an alternative fuel or raw material if that use
     could be  accomplished under the facility's
     construction specifications as amended prior to
     the change.

     Bridgeport Harbor Unit 93 is exempt from Subpart Da coverage
because of the provision ac §60.40a(d).  My staff has examined
the conversion as related to Subpart D applicability, and discussed
it with EFA's  Emission Standards and Engineering Division (ESED).
The construction specifications for jinit #.3 outlined in your
memorandum clearly indicate that the unit was designed to
accommodate coal prior to the Subpart D applicability date,
even though coal was never burned.  Also, the approximately 5
million dollars which UI muse spend on the affected facility, the
steam generating unit, to enable it to actually burn coal, is
minimal compared to the costs of a coal conversion, and represents
only minor adjustments to equipment already in place.  For these
reasons, both  SSCD and ESED concur with your conclusion that Unit
92 is exempt from coverage under Subpart D as.- well as Subpart Da.

     The question of PSD applicability is more difficult because
it is necessary to determine if the entire plant, rather than
simply the boiler, was capable of accommodating coal before the
January 6, 1975 applicability date.  In a telephone conversation
on July 19. 1983 between Robert Myers of my staff and John Courcier

-------
of your office, John related to Bob the extent to which UI has
incorporated coal capability at their Bridgeport Harbor Station.
Apparently UI has already put in place, prior to January 6, 1975,
all of the coal handling and support facilities necessary for
the combustion of coal.  This equipment continues to be available and
only requires some minor adjustment in order to accommodate coal
at Unit #3.  Therefore, it is the opinion of this office that
UI's Bridgeport* Harbor Station was capable of accommodating the
alternative fuel prior to January 6, 1975, and is exempt
from the PSD permitting requirements pursuant to §52. 21 (b) (2)
     This response has received the concurrence of both OAQPS
and the Office of General Counsel.  Please contact Robert
Myers at FTS 382-2875 if you have additional concerns.
                              Edvard E. Reich
cc:  Jack Farmer
     Walt Stevenson
     Earl Salo
     Dave Rochlin
     Mike Trutna
     Peter Wyckoff

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                   UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
  :..s   J.r.e  3.  15S2
                                                                       -.23
     T   PSD Applicability  for Bridgeport Haroor Coal  Conversion
  PSOM    Barley F.  Laing,  Director'
          Air Management Division   Region I

    TO    Edward E.  Reich,  Director
          Division of Stationary Source Enforcement


      Issue

      Region  I  requests  your  concurrence in our determination  that
      the  Bridgeport Harbor Unit #3 is not subject to either PSD or
      NSPS requirements.  It  is our belief  that  the boiler was origi-
      nally designed to  burn  coal and the changes that are being under-
      taken at  UI's  Bridgeport Harbor station do  not constitute a major
      modification as defined under PSD and NSPS, and therefore, should
      be exempt from these  reviews.

      Background

      The  United Illuminating Company (UI) has filed an application with
      the  Connecticut Department of Environmental Protection  (CT DEP) to
      burn coal in Unit  #3  (BBS 3)  at UI's Bridgeport Harbor Station.
      The  CT  DEP issued  UI  an operating .permit for BHS 3, and  has since
      requested that Region I determine whether or not the coal conversion
      at BHS  3  (which was originally designed to  burn coal) should be
      considered a modification and therefore subject to the PSD and/or
      the  NSPS  regulations  (40 CFR  Part" 60, Subparts D and Da).

      UI contends that BHS  3  was originally designed to accommodate coal.
      In fact,  they  have supplied the CT DEP with copies of the original
      proposal,  contract, and designs which indicate that coal was indeed
      intended  to be the primary fuel.  During the latter stages of the
      construction in 1967-1968, a decision was  made to use oil as the
      primary fuel and coal as a secondary fuel.  However, no  coal
      firing  equipment was  deleted  from the contract and all coal firing
      equipment contracted  for was  installed.  In addition, all of the
      other systems  and  equipment required for pulverized coal firing of
      the  unit,  including coal handling facilities, pulverizers and ash
      and  slag  handling  equipment,  were similarly specified by UI and
      installed by UI's  contractor.

      At a state investigative hearing on the coal conversion, certain
      additional facts were revealed.  Although UI showed that the boiler
      was  originally designed and built to burn either coal or oil,
      significant heat exchange surface alterations were made  to allow
      for  continuous, long-term oil burning.  Coal has never been burned
      in the  BHS 3.   Some modifications to BHS 3  are now necessary in
      order to  allow for continuous, reliable coal burning at  partial
SPA fmm 13204 
-------
load or oil at full load, including modifications to tubing within
the boiler, as well as to some of the auxiliary equipment.  Other
changes to the unit include the addition of flame scanners, burners
and igniters, and additional relays.  Certain piping and wiring to
allow the bottom ash removal system, certain coal handling equipment
and the pulverizers to be functional is also necessary.  Additional
equipment mod if icatitsn would have been necessary in 1968 to burn
coal, but because oil was to be used as fuel, such modifications
were never fully completed.  Although the state hearing officer
concluded that extensive "physical changes and additions" to the
BHS 3 totalling some S35 million constitute a modification to a
stationary source, the CT DEP did not require UI to obtain a mod-
ified source permit for BHS 3.  The state did, however•require UI
to obtain an operating permit to .convert to coal.

Rationale

NSPS (Subpart D):  40CFR 60.14{e)(4) exempts a change  to a facility
(in this case, a boiler) from consideration as a modification if the
emissions increase from such change results from use of an alterna-
tive fuel, provided the use of the alternative fuel could be accom-
modate under the facility's construction specifications as amended
prior to the change.  UI's designs for BHS 3, as well  as their
contract, specified all equipment necessary for burning coal as the
primary fuel.

All major equipment was installed..  It is Region I's opinion that
the alterations to the boiler necessary to burn coal presently re-
sult from the 1968 alterations to the boiler that were made to
enable the boiler to burn oil, and as such do not constitute a
modification.

NSPS (Subpart Da):  40 CFR 60.40a(d) exempts an oil burning unit from
the provisions of Subpart Da if such unit is modified  to burn coal.

PSD:  40 CFR 52.21(b)(2)(iii)(e)(1) exempts a change to a source (in
this case, the generating station) from consideration  as a major
modification if such change results from the use of an alternative
fuel, provided the source could accommodate the alternative fuel
prior to January 6, 1975.  BHS 3 was built before this date and was
designed to burn coal, and is therefore exempt from PSD.  If your
office concurs with Region I's determination, please advise
us by June 24, 1983.  If your office does not/concur,  please forward
your determination by July 8, 1983.

Since several parties are anxiously awaiting this determination we
would appreciate your response by the dates indicated  above.

If you should have any questions, or should need additional inform-
ation, please contact John Courcier  (FTS 223-5137) of  my  staff.

cc:   Rich Biondi, DSSE
      Marcus McCraven, 01
      Leonard Bruckman, CT DE?
      Mike Trutna, QAQPS

-------
Mr. C. H. Fancy, P. E., Deputy Chief
Bureau of Air Quality Management
Department of Environmental Regulation
Twin Towfers Office Building
2*00 Blair Stone Rcao
             Florida 32301-8241
Dear Mr. Fancy:

This is in response to your letter of July 12, 1<»85, regarcinu
proposed construction at Buckeye Celluose Corporation.  On
August f>, Roger Pfaft discussed th«=- answer* to your questions
with Bruce Mitchell by telephone.  Tni« letter will- document the-
guidance transmitted in that conversation.

Regarding banking of emissions not used up during a PST? review,
•missions of pollutants which were subject to PSP review cannot
be banked. For example, suppose that, in l«en, th«- source srut
down a boiler with actual emissions of 200 tons per year (TPY)
SO2 and *° TPY particulate matter.  In 1982, the source obtain*, r
a PSD permit for a new boiler emitting 250 TPY SO2 and 30 TFY
particulate matter.  That construction was subject to ?SD onl>
for SO2» since the net increase in particulate matter was de
minimis.  In 3985. the source applies for a permit for another
boiler which emits 100 TPY S(»2 and 30 TPY particulate.  This
boiler would be subject to PSD for S02 , but net particular* .
That is because, after a PSP permit is issued  for a particular
pollutant (P02 in 1982), none of the  increases or decreases  at
or before that time can ever be used again In the netting cal-
culation.  However, if a PSP permit has not been  issued, all
increases end decreases in the contemporaneous time frame ma^
be used.  Thus, for S<>2 , the increase in emissions of the ne*
boiler is 100 TPY, and for particulate the increap** is 20 TPY
(-40 ••• 30 + 30).

In answer to the second question, the actual pollutant decrease?
from unpermit ted -sources may be used  for creditable decreases
if the decreases are made federally enforceable.

The decreases in TRS, which you described in the  third question,
are not creditable beyond those allowed by the TRS rule.  The
PSP regulations allow credit for decreases in  the actual or
allowable emissions, whichever is lower.  The definition of
allowable emissions includes SIP limitations with a  future
compliance date.  Therefore, if the Florida SIP contains a  TPF
rule with a future compliance date, no credit  can be  given  for
emissions exceeding that rule.

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If you or your ttafi d«-*ir»  flirrtmr  clarifications on thes«
        pl«?a«e vrite »c or call Nr/ Dcger  Pfe?!  «t 404/861-4253
          yourc
Bruce p. Killer, Acting Chief
Air Programs Branch

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                             STATE OF rLORl )A                      v      k/—'

           DEPARTMENT OF ENVIRONMENTAL REGULATION
                                                              BOB GRAHAM

TW.NTOWERSOFF.CEBU.LO.NC             ±3l2V                      GOVERNOR
2600 BLAIR STONE ROAD               iftM/TI   .,   B               uiornaiA j
TALLAHASSEE. FLOR.DA 32301-8241         '                           V.CTOR.A J
                              July  12,  1985


   Mr. James  T. Wilburn,  Chief
   Air Engineering  Branch
   U.S. EPA - Region  IV
   345 Courtland  street,  N.E.
   Atlanta, Georgia  30365

   Dear Mr. Wilburn:

   Re:  PSD Review  Policy Applicable  to  New Source  Construction

   During a preappli cation  meeting on June  13,  1985,  with  Buckeye
   Cellulose  Corporation, whose  mill  is  located in  Perry,  Florida
   (Taylor County), they  requested that  three  issues  be  presented to
   you for policy interpretation under PSD  review as  it  pertains to
   new source (federal facility) construction. f Mr. Roger  Pfaff  has
   already had  some discussions  with  Mi . Bruce  Mitchell, who is  a
   review engineer  in our Central  Air Permitting section.   These
   issues are:

     o  Would the mill be allowed  to  bank any  pollutant  emissions not
        used  up during- a  PSD review for  any future  projects?

     o  If quantifiable,  can the actual  pollutant emissions from
        existing  unpermitted sources  be  utilized for  creditable
        decreases if  they are going to be shut-down and  dismantled?

     o  Since the State of  Florida has a TRS rule,  which became
        effective April 10, 1985,  the mill  is  proposing  to comply
        with  the  maximum  allowable emissions standard earlier than
        the rule's  compliance date.  Can any creditable  decrease in
        TRS be  allowed under a PSD review?
        Comments  from the bureau;   It is the bureau's contention and
        policy  that no credit should be  granted to  any project
        requiring PSD review when  the pollutant reductions are made
        by operational procedures  or installation of mechanical
        control systems,  or both,  to meet the  maximum allowable
        emissions standard  set forth in  a rule.  However,  if the
        source's  emissions  are reduced below the rule's  standard,
        then  credit would be appropriate from the rule's maximum
        allowable emission  standard to the  emission level below the
        rule's  standard.

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Mr. James T. Wilburn
Page Two
July 12, 1985
If there are any questions, please call Bruce  Mitchell at
(904)488-1344 or write to me at the above  address.   Your  prompt
attention to these matters is very much appreciated.
                                Sincerely,
                                C.  H.  Falveyf P.E.
                                Deputy Chief
                                Bureau of  Air Quality
                                  Management
CHP/BM/s

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: \ xT^7 ;   UNITED STATES EN'. iSONMENTAL PROTECTION A<3E\CY
*. •^hu^i^ ••
'».   .o                  W^SnlNGTON OC  204cC
  « «£!»'

                           JAM 1 9 198T


                                               TM6 AOMINIST9ATCP
    Andrea S. Bear, Esquire
    Hunton & Wil llama
    1919 Pennsylvania Avenue, S.W.
    P.O. Box 19230
    Washington, D.C.  20036

    Dear Ms. Bear:

         This is EPA1s response to your letter of October 31, 1980,
    in which you asked for clarification of some of the recent
    amendments to 40 CFR 52.21 (1980), the PSD regulations govern-
    ing new source review in most states.  The amendments appear
    at 45 PR 52676 (August 7, 1980).

                              QUESTION 1

         In your view, the new version of 40 CFR 52.21 provides that
    any increase in actual emissions which occurs (1) as a result of
    a fuel switch. (2) between August 1, 1977, and the applicable
    baseline data and (3)  at any major stationary source would
    contribute exclusively to the baseline concentration, if the
    switch is not a "major modification" by virtue of Section 52.21
    (b)(2)(iii). I/ Your first question is whether the agency agrees
    with that interpretation.

         EPA does agree with it, on the assumption that each of the
    major stationary sources you had in mind is a source whose con-
    struction commenced on or before January 6, 1975.  Any increase
    in actual emissions that occurs on or before the baseline date
    at such a so'urce contributes exclusively to the baseline concen-
    tration, unless it results from "construction" that commences
    after January 6, 1975.  See 40 CFR 52.2Kb) (13), 45 PR 52737;
    45 PR 52678 (3d column), 52714 (2d column), 52717 (3d column),
    52719-20.  Here, the fuel switch would not be "construction."
    The new regulations define "construction" as "any physical
    change* or change in the method of operation . . . which would


    ITSection *2.2l(b)(2)(iii), which appears in the new defini-
    ~    tion of "major modification" at 45 FR 52735-36, excludes
         certain changes at a source from the phrase "physical change
         or change in the method of operation" and includes others.

-------
                                                             4.20

                               2-
result  in a  Change in actual  emissions."  40 CFR 52..2Kb) (8),
45  ?R 52736.  EPA intended Section  52.2Kb) (2) (iii) to govern
the boundaries of the-phrase  "physical change  or change in the
method  of operation" for the  purposes of the definition of
"construction," as well as the definition of "major modifica-
tion,"  and you posited that Section 52.2Kb) (2) (iii) would'
exclude the  fuel switch from  that phrase.

      EPA would not agree entirely with your interpretation, how-
ever, if any of the major stationary sources you had in mind is
a source whose construction commenced after January 6, 1975.
Any increase1 in actual emissions at such a source, including
any increase before the baseline date, affects  increment
consumption.  See 40 CFR 52.2Kb) (13) (ii) (a),  45 FR 52737. 2/

                          QUESTION  2

      The new version of 40. CFR 52.21 establishes that, in
determining whether a proposed change at a source would amount
to  a  "major modification," one may  take into account any
contemporaneous and otherwise creditable decreases in emissions
at  the  source.  Hew Section 52.2Kb)(3)(iv), 45 FR 52736, further
provides in part that a decrease which occurs before the applic-
able baseline date is creditable only if it affects increment
consumption.

     Against that background, you focus in your second question*
on  reductions in capacity utilization which do not result from
demolition, such as an operational  shutdown or derating of an
electric utility steam generating unit at a power plant.  You
ask:  under what conditions would a decrease in actual emissions
that occurs as a result of such a reduction and between January 6,
1975, aad the applicable baseline date affect  increment
consumption?

     Such a decrease would affect increment consumption • if the
unit at which it occurs is a major  stationary  source or major
modification whose construction commenced after January 6,
1975.  Any decrease in actual emissions which occurs at such a
unit* as well as any increase, counts towards  increment consump-
tion.  See 40 CFR 52.2Kb) (13)(ii) (a), 45 FR 52737.
27   in footnote 6 at your letter, you state that EPA at
     45 FR 52714 (1st column) "indicates that only post-
     baseline date voluntary fuel conversion emission
     increases are excluded from baseline concentration."
     In that passage of the preamble, however, EPA focused
     solely on such post-baseline increases; it said nothing
     explicitly or implicitly about prerbaseline increases.

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                                                               4.30



                             -3-
     Even if such  a decrease in emissions occurs at a major
 stationary  source  whose construction commenced on or before
 January 6,  1975, the decrease would still affect increment
 consumption, if the "short-cf-demolition" reduction in
 capacity utilization from which it results amounts itself to
 "construction."  Any decrease in actual emissions which results
 from "construction"that commences after January 6, 1975/ and
 on or before the applicable baseline date at any major station-
 ary source  affects increment consumption.  See 40 CFR 52.2Kb)
 <13)(ii)(a), 45 PR 52737; 45 PR 52719-20.

     Xn EPA1s view, the regulations offer only two conditions
 under which a "short-of-demolition" reduction in capacity utiliza-
 tion would  amount  to "construction."  One condition is that it
 became federally enforceable under a construction permit condi-
 tion established under a permit program contained In the state
 implementation plan (SIP).  Section 52.2Kb)(2) (iii) provides
 for the purposes of the definition of "construction," as well
 as the definition  of "major modification," that the phrase
 "physical change or change in the method of operation" in both
 of those definitions includes any increase in hours of operation
 or production rate that would require a relaxation of "any
 federally enforceable permit condition which was established
 after January 6, 1975, pursuant to 40 CFR 52.21 or under regula-
 tions approved pursuant to 40 CFR 51.18 or 40 CFR 51.24."  40
 CFR 52.21(b)(2)(iii)(f), 45 PR 52736.  It follows that the phrase
 also includes the  inverse of such an increase, namely, any
 decrease in hours  of operation or production rate which became
 federally enforceable under any such permit condition.  -See
 also 45 PR  52720 (1st and 2d columns).

     The other and alternative condition is permanency.  Under
 a standing  interpretation of 40 CFR 52.21, a reduction in
 capacity utilization would constitute a "physical change or
 change in the method of operation" for PSD purposes if it was
 permanent.  3/  Sae Memorandum, September 6, 1978, Reich to
 Dvorkin (copy attached).  Whether a reduction was permanent
 depends upon the intention of the owner or. operator at the
 time of the reduction as determined from all of the facts and
 circumstances.  In particular, a reduction was permanent if
 the owner or operator intended to abandon the productive
 capacity in question, that is, to withdraw it forever from use
 in the production  of income, including sale, exchange, or other
 disposition.  EPA  would presume that a reduction was permanent


 3/   A corollary o4 this proposition is that 'any" return to the
~"    level  of operation that prevailed just before a permanent
     reduction would be itself a "physical change or change in
     the method of operation," and therefore a candidate for
     PSD review.

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                                                               •1.20

                             -4-
upon any strong indication of such an intention, for example:
establishment of any federally enforceable limitation that would
prohibit any return to the previous level of operation; passage
of  two years or more without any return to that level; or removal
of  the productive capacity from the emissions inventory of the
state.

                          QUESTION 3

     The new definition of "major modification" excludes from
that term any voluntary fuel switch that meets certain condi-
tions.  One of those conditions is that the source was "capable
of  accommodating" the fuel before January 6, 1975.  See 40 CFR
52.21(b)(2)(ill)(•)(£). 45 PR 52735-36..

     In your letter* you asked EPA to issue guidance on the
meaning of the term "capable of accommodating."  You indicated
that a memorandum which drew the distinction between a "capable"
and an "incapable" source by using case examples would suffice.
In  addition, you offered to provide information that would help
draw the distinction.

     EPA is willing to provide the' guidance you seek, but only
if  you first provide the specific fact patterns that would form
the foundation for the memorandum you have in mind.  To deal at
the outset with eases that are both concrete and important to
you should prove more efficient than for the agency to hypothe-
size a range of possibilities.

     If you are willing to provide those cases, please send them
to Michael Trutna, Chief, New Source Review Section, OAQPS, Mutual
Building,  Durham, North Carolina (919-541-5292).  He will have
the lead for developing the guidance.  In your communications to
him, please point out any fact pattern which reflects a case on
which the agency has already spoken and indicate which EPA office
made the determination.

                          gu&STION 4

     The first part of the definition of the term "significant"
in the new regulations contains a .list of pollutants and speci-
fies a de min^is emissions level for each of them.  See 40 CFR
52.2Kb) (23) (i), 45 PR 52737.  The second part then provides
that* for any pollutant "subject to regulation under the Act
that [the first part] does not list*" the term means any emis-
sions rate at all.  Id* §52.2Kb) (22) (ii).

     You ask that the agency delete the second part of the
definition.  EPA agrees to do so, when it promulgates in the
near, future technical and conforming amendments to the regula-
tions.

-------
                                                                4.30

                              -5-
      Zn  reassessing the  second part  of  the  definition,  EPA has
 concluded that it is superflaous.  On the one hand,  the first
 part  already  lists each  of the pollutants that were  regulated
 under the Act When EPA promulgated the  part.  On  the other hand,
 EPA plans to  establish a de aimimis  threshold for any currently
 unregulated pollutant, when it regulates that pollutant.


                          QUESTION 5

      You interpret the new regulations  as providing  that  a
 "minor"  addition to a "minor" 'source would  escape PSD review
 and,  if  it occurred before the applicable baseline date,  would
 contribute to the baseline concentration.   Your fifth question
 is whether the agency intended the regulations to so provide.
 EPA hereby confirms that it did.


                          QUESTION 6

     Section  52.21(1)(7) of the new regulations,  45  FR  52739,
 exempts  any major modification which meets  certain conditions
 from the air quality assessments relating to Class II areas.
 In your  last question, you ask EPA to confirm that it did not
 intend to limit a source to just one such exemption.  SPA here-
by confirms, that it did  not.

     Thank you for seeking clarification of new regulations in
advance of litigation*.  We hope that the answers  here are
responsive to your questions.  Because of the importance  of
those answers, we plan to incorporate them  into the  preamble to
technical and conforming amendments that we are preparing.  If
you have any questions about this response, please contact
Lydia Wegman  (755-0788)  or Peter Wyckoff (755-0766)  in  the
Office of General Counsel
cct  All counsel of record in litigation on 45 FR  52676
     (August 7, 1980)
     Patrick Cafferty, Esquire, Department of Justice
     Elizabeth Stein, Esquire, Departaant of Justice

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7 I
y
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

            WASHINGTON. O.C. 20460
                                 APR
                                                       OFFICE OF
                                                  AIR. NOISE AND RADIATION
MEMORANDUM


SUBJECT:  PSD  Applicability  to Coal Conversions

FROM:     Director
          Stationary  Source  Compliance  Division
          Office  of Air  Quality Planning  and Standards

TO:       Air  Management Division Directors
          Regions I,  III,  V,  and IX

          Air  and Waste  Management Division Directors
          Regions II, VI-VIII,  and X
     The attached  letter  from Region IV to the State of Florida
recites our draft  policy  on  the  applicability  of PSD to coal
conversions.  This policy has been  in effect in Region IV,  and
has also been sent to certain other Regions  as a guide in
developing their applicability determinations.

     When finalized, this policy will help ensure national
consistency on  this issue.   Please  read the  draft policy and
send any comments  you may have .to Doreen Cantor at FTS 382-2874
by Mayj^^^jg^.   The policy will then be finalized based on
yourcommentsT^
                                       Edward  E.  Reich

Attachment

cc:  Thomas W.  Devine,  Director
     Air and Waste Management  Divison,  Region IV

     Darryl Tyler, Director
     Control Programs Development  Division

     Peter Wyckoff
     Office of  General  Counsel

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       •i
       .-   UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                                  REGION IV

  JIM   '/  1883                 345 COUHTLAMO STMCCT
  **                          ATLANTA. eCORSlA 30365

 4A«-AM
 Mr. Steve  anallwood, Cnlei
 Bureau ol Air Quality Management
 Twin Towers Office Building
 2600 Blair  Stone Road
 Tallahassee,  Florida  32301

 Dear Mr.  Saallwood:

 This is to  inform you of Region IV policy concerning applicability of coal
 conversions to  EPA PSD regulations.

 Fuel conversions, in general, are considered major modifications tor purpose
 of PSD review providing emission increases are significant.  However,
 Section S2.21(o)(2)(lil)(e) provides an exemption for certain fuel conversic
 from the  major  modification definition.  Specifically, this section exwr-pts
 4 fuel conversion from PSD review if the source was capanle of acconnodating
 the alternate fuel before January 6, 1975 and sues a change is not prouibite
 by any enforceable permit conditions*

 The question  then, is whether the source, i.e., the entire plant, was capaol
 of accommodating coal before January 6, Utfa.  For purposes of converting on
 or more,  but  not all of the boilers, we Interpret this provision as requiria
 that the  plant  be capable of. receiving, transierring, and preparing coal, ar.
 then transferring CM! and combusting coal in the units being converted, anc
 disposing of  the ash.  It is not necessary for the plant to be capable of
 carrying  out  an thos* operations for every unit at the source, but only for
 for those being converted.  On the other hand, if the plant is capable ox
 receiving cml  and transferring and combusting it only in son* other unit
 at the- plant, but not the one being converted, the plant would not be
 deemed capable  of acconnodating coal for purposes of that project.

 In order  for  a  plant to be capable of agmmixiating cool, the company must
 snow not cnay that the design (i.e., construction specifications) for tae
 source contesplated the equipment, but also that the equipment actually
was installed and still remains in existence*  Otherwise, it cannot reason-
ably be concluded tnat the use of coal was "designed into the* source.11
Thus, a source  that had used coal at a particular unit at an earlier tine,
 but later switched to another fuel, would be capable of accuraodatinft coal
as long as the  ir*l handling equipment still existed.  If coal handling
equipment bad been removed or was never installed, the source would not be
ir*»l acconrodativc.  If a proposed conversion is not eligible for the
exemption under 52.21(b)(2)(iii)(e). it is considered a major modification
 for the purposes of PSD review if the resulting net emission increases are
 significant.  PSD applicability would be based on all emission increases
 from the conversion, inclurting emission incmscs from the coal and isn
 handling and  storage facilities as veil aa from the.boilers, since all
 Increases are «••"?*** by the conversion to coal.

-------
                                                                          .31
                                    -2-
     PSD applicability has been established, it is then necessary to
undertake a BACT analysis as required under 52.2KJ).  That section, under
paragraph 3, requires tbat a major modification apply "best available
control technology for each pollutant subject to regulation under the Act
for which it would result in a significant net emissions increase at the
source.  This requirement applies to each proposed emissions unit at which
a net CTJgsions increase in the pollutant would occur as a result of a
physical change or change in the method of operation in the unit."  This
section clearly intends that technology review be assessed on an emissions
unit rather than on a plant-vide basis.            . /J.LM
                                                /••*      I
In the situation where the individual boiler being converted is capable
of firing ff»l with »ri»v*l>'t physical changes Cior example,  change of
        only), BAG?'analysis would apply to the coal handling and storage
equipment as well as any other necessary new'equipment.  BACT analysis
would not apply to the boilers sine* individually they were designed to
ayxmii-iJate *™»^ »gd therefore will not"5e^53e?going a physical change or
c lange IT* ^**? ^p^^od of v/iy ration *

In addition to the BACT analysis, requirements for a source impact analysis
(52.210O), air quality analysis (52.21(m)), additional impact analyses
(52.21(0)), and Class I analysis (52.21(p)) must be satisfied.

Coce the source has satisfied these requirements and the notice and public
oomnent provisions, permit approval may proceed.

Region IV is aware that guidance on ****« question has been somewhat vague,
and possibly mnflic^ng. in the past.  Therefore, we do not intend for
ttri9 policy to be applied retroactively where it was not adhered to.  Bow-
ever, we do expect each Region 17 state to immediately implement this
policy for *T1 future applicability determinations.

Sincerely yours,
James T. Tilburn, Chief

Air ft Waste Management Division

ec:  Ed Reich
     Darryl Tyler

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»
«
 „.«<>"«/,                                                                4.31
•*  —..  *
       »

             ITED 5TA-E3 ENVIRONMENTAL PROTECTION AGENCY

'%-0<««''"                            REGION IV
 JIN   /  1383                 349 COURTLAMO STREET
                              ATLANTA. GEORGIA 303CS

4AV-AM
 tt>. Steve  Smllwccd, Cniei
 Bureau of Air Quality l&nage&ent
 Twin Toners Office Building
 2600 Blair Stone Read
 Tallahassee, Florida.  32301

 Dear Kr. Saallwod:

 This is to inform you of Region IV policy concerning applicability of coal
 conversions to EPA PSD regulations.

 Fuel conversions, in general,  are considered mjor modirications tor purposes
 of PSD review providing .emission increases are significant.  However,
 Section S2.21(o)(2)(iii)(e) provides an exen^tion for certain fuel conversion
 from the aaajor modification definition.  Specifically, this section ex«nr>T,s
 a fuel conversion froct PSD review if the source was capanle of acccnnodating
 the alternate fuel before January 6, 1975 and ouch a change is cot prouiDited
 by any enforceable permit conditions.

 The question then, is whether  the source, i.e., the entire plant, was capable
 of accoarcdating coal before January 6, Iif7b.  For purposes: of converting one
 or more,  but not all of the boilers, we interpret this provision as requiring
 that tee plant be capable of receiving, transierring, and preparing coal, ani
 then transferring coal and combusting coal in the units being converted,  anc
 disposing of the ash.  It is not necessary for the plant to be capable of
 carrying out all those operations for every unit at the source, but only  for
 for those being converted.  On the other hand, if tiie plant is capable 02
 receiving coal and transferring and combusting it only in sec* other unit
 at the- plant, but not the one  being converted, the plant would not be
 decneri capable of accumulating coal for purposes of that project.
 In order for a plant to be capable of acocRnDdating coal, the cen^ony sx:st
 she* not only that  the design (i.e.. construction specifications)  for the
 source eontecplated the equiprasnt, but also that the equipment  actually
 was installed and still remains in existence.  Otherwise, it cannot reason-
 ably be concluded that the use of coal was "designed into the source."
 Thus, a source that had used coal at a particular unit at an earlier tine,
 but later switched  to another fuel, would be capaole of accurodatinj? coal
 as long as the coal handling equipment still existed.  If coal  handling
 equipment had been  renewed or was never installed, the aourc* would not b*»
 coal acconnodativc.  If • proposed conversion is not eligible for  the
 exerrption under 52.21(b)(2)(iii)(e), it is considered a m.lor nrdification
 for the purposes of PSD review if the resulting net emission increases
 significant.  PSD applicability would be based on all emission  increases
 fron the conversion,  including emission increases from the coal and asn
 handling and storage facilities as well as from the boilers, since all t£
 increases are caused by the conversion to coal.

-------
                                                                         4.31
                                    -2-
Cnce PSD applicability has been established, it is then necessary to
undertake a BAG! analysis as required under 52.21(j).  That section, under
paragraph 3, requires that a major modification apply "best available
control technology for each pollutant subject to regulation under the Act
for which it would result in a significant net emissions increase at the
         This requireaoent applies to each proposed emissions unit at which
a net emissions increase in the pollutant would occur as a result of a.
physical change or change in the method of operation in the unit."  This
section clearly intends that technology review be assessed on an emissions
unit rather than on a plant-vide basis.

In the situation where the individual boiler being converted is capable
of firing coal with "^"•<"*1 physical changes (for example, change of
burners only), BAG! analysis would apply to the coal handling and storage
equipment as well as any other necessary new equipment.  BACI analysis
would not apply to the boilers since individually they were designed to
      sdate conl and therefore trill not be undergoing a physical change or
change in the method of operation.

In addition to the BACT analysis, requirements for a source impact analysis
(52.210O), air quality analysis (52.21(m)), additional impact analyses
(52.21(o))t and Class I analysis (52.21(p)) must be satisfied.

Coce the source has satisfied these requirements and the notice and public
cement provisions, permit approval may proceed.

Region IV is aware that guidance on this question has been somewhat vague,
and possibly conflicting, in the past.  Therefore, we do not intend for
«iic policy to be applied retroactively where it was not adhered to.  How-
ever, we do expect each Region 17 state to immediately implement this
policy for all future applicability determinations.

Sincerely yours,
James T. Tilburn, Chief
Air Management Branch
Air ft Waste Management Division

ce:  Ed Reich
     Darryl Tyler

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                                                                         4 .32
               UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                       0"ics of Air Quality Planning and Standards^
                      ^essarcn Triangle Par* Monn Carolina  2771"


                                  7  JUL 1935
MEMORANDUM

SUBJECT:  Prevention of Significant Deterioration (PSD)
          Definition of "Modification"
FROM:     Gerald A. Emison, Directj_
          Office of Air Quality Planning anoTtandards  (MD-10)

TO:       Director, Air Management Division
          Regions I. Ill, V. and IX
          Director, Air and Waste Management Division
          Region II
          Director, Air, Pesticides, and Toxic Management  Division
          Regions IV and VI
          Director, Air and Toxics Division
          Regions VII, VIII, and X

     The Office of Air Quality Planning and Standards (OAQPS)  has  recently
received an inquiry regarding the applicability of PSD  review  to two
facilities which would replace wet scrubbers with baghouses.   The  baghouses
would improve control of particulate matter but allow a significant net
 ncrease of sulfur dioxide  (SOj) emissions.  The question  is  whether  tne
proposed change would be subject to ?SO review under the Federal PSD  regu-
lations as a major modification.  For the reasons discussed below,  I  have
concluded that this change  would constitute a major modification.   The
Office of General Counsel"  (OGC) has concurred in the conclusions of this
memorandum.

     The PSD review applies to new major-stationary sources and to major
modifications.1  Subject to certain qualifications and  exemptions,  a
•'iKtjor modification" is  a  "physical change in or change in the method of
operation of a major stationary source that would result in a  significant
net  airsssio.ns increase  of  any pollutant subject to regulation under the
Act" [40 CFR 51.24{b)(2) and 52.2l(b)(2)].  There is general  agreement
     1 Note that, although the  subject cases involve PSD review, the same
issue exists with respect to major source nonattainment new source review
(NSR) permitting pursuant to Part D of the Clean Air Act (Act).  Because
these cases involve  PSD, and because nonattainment NSR has basic program
requirements that make this issue less likely to arise in that area, this
memorandum focuses on PSD.  The conclusions of this memorandum apply
equally to nonattainment NSR, however.

-------
                                                                           4.32
that the proposed change constitutes  a  major modification within the
express terms of the PSD regulations.2   For  purposes of brevity, I am
omitting the specific details  of  that analysis.

     The true area of controversy,  and  the focus  of this memorandum, is
the relevance of an exemption  from  review  under the new source performance
standards (NSPS).  Specifically,  the  NSPS  regulations provide that the
following shall  not be considered a modification:

          The addition or use  of  any  system or device whose
          primary function is  the reduction  of air pollutants,
          except where an emission  control system is removed
          or replaced by a system which the  Administrator
          determines to be less environmentally beneficial
          [40 CFR 60.14(e)(5)3.

     The statutory definition  of  modification  for both PSD and NSPS purposes
is presented in section 111 of the  Act.  It  has been stated that, for
this reason, the subject exemption  automatically  applies to PSD even if
it is not expressly part of the PSD regulations  (memorandum from Edward
E. Reich, Director, Stationary Source Compliance  Division, OAQPS, and
William F. Pedersen, Acting Associate Seneral  Counsel, OGC, to Allyn M.
Davis and Paul Seals of EPA Region  VI,  dated April 21, 1983).

     The better approach, which I am setting forth today, is that the
subject exemption does not automatically affix itself to the PSD  regulations.
Rather, any such exemptions may be  made applicable to PSD only  by express
"-lemaking.

     There are several reasons for concluding  that EPA did  not  intend  to
make the exemption in question here part of the  PSD system, beyond  the
obvious lack of language including it in the  regulations.   First, the
program is oriented toward ambient  air quality as well as technology
based controls, in contrast to the NSPS program which  addresses  only tne
latter.  The PSD review is a tool for air quality management and  comprehen-
sive consideration of  increases of any pollutant regulated  under the Act.
The NSPS exemption is  inconsistent with this approach.   In  addition, it
seems very unlikely  that EPA would have imported the  "environmentally
beneficial" test into  the PSD  applicability calculus,  inasmuch  as that
calculus is  strongly quantitative  and objective in its  orientation, yet
the NSPS test is highly qualitative and judgmental.   In  any event,  the
overall PSD  calculus is  simply different  from the NSPS approach, and
hence one would have expected  EPA  to give express indication  of an  intention
to  bring the  NSPS  exemption into the PSD  calculus if indeed it nad had that
intention.
      2  The  owner  of  the  facilities  has  argued that this activity constitutes
 routine maintenance,  reoair,  or  reolacement, thus allowing  i-  to rsly  an  an
 Demotion from  r»view C40  CrR 51.2*(b) (2)(iii)U) and 52.2Kb; (2} (;-^ ' (a);.
 \  conclude,  however,  that  this situation  does not fall within  :nat  exemption.

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     The fact that both programs use the definition  of modification
contained in section 111.of the Act is not,  in1 itself, sufficient  to
prove that Congress intended that NSPS exemptions  then in  effect would
automatically be incorporated into PSD.  Congress  has, of  course,  occa-
sionally ratified existing regulatory programs  or  approaches  (e.g..
40 CFR 51, Appendix S and uncertified section 129 of  Public Law  95-95),
but such is generally done with an express indication of that intent.   I
have found Jio such indication in this case.   Apparently the only legisla-
tive history on this subject is the remark that Congress intended  to
conform the meaning of "modification" for PSD purposes to  "usage in  other
parts of the'Act" [123 Cong. Rec.  H11957 {November  1, 1977)].  Given the
distinct differences between the NSR regul-atory processes  promulgated  in
response to the 1977 amendments and the preexisting  NSPS regulations
defining "modification," it seems clear that Congress  desired to conform
the usage of that term in only a broad sense.

     Finally, I believe that the Federal Register  preamble segment cited
in the April 21, 1983, memorandum (43 FR Z63~80, 26396, June 19, 1978)
should not be read broadly in support of automatic incorporation of  NSPS
provisions.  That preamble, involving review of fuel switches,  addressed  a
regulatory reaffirmation of an exemption which had already been promulgated
into the original 1974 PSO regulations.

     For these reasons, the subject exemption does not apply to PSD  and
the earlier memorandum cited on this topic is withdrawn.

cc:  R. Bauman
     A. EcJcert
     T. Helms
     I. Reich
     D. Tyler
     P. Wyckoff

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                                                                          4.32
                UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                        Office of Air Quality Planning and Standards
                       Researcn Triangle Park, North Carolina 27711


                                  7 JUL 1936
 MEMORANDUM

 SUBJECT:  Prevention of Significant Deterioration (PSD)
          Definition of "Modification"

 FROM:     Gerald A. Emison, Directj_
          Office of Air Quality PTanriing anoTtandards  (MD-10)

 TO:       Director, Air Management Division
          Regions I, III, V, and IX
          Director, Air and Waste Management Division
          Region II
          Director, Air, Pesticides, and Toxic Management Division
          Regions IV and VI
          Director, Air and Toxics Division
          Regions VII, VIII, and X

     The Office of Air Quality Planning and Standards (OAQPS) has recently
 received an Inquiry regarding the applicability of PSD review to two
 facilities which would replace wet scrubbers with baghduses.  The baghouses
 would improve control  of paniculate matter but allow a significant net
 increase of sulfur dioxide (S0£) emissions.  The question is whether the
 proposed change would be subject to PSD review under the Federal PSD regu-
 lations as a major modification.  For the reasons discussed below, I have
 concluded that this change would constitute a major modification.  The
 Office of General Counsel  (OGC) has concurred in the conclusions of this
memorandum.

     The PSD review applies to new major stationary sources and to major
modifications.1  Subject to certain qualifications and exemptions, a
 "major modification" is a "physical change in or change in the method of
operation of a major stationary source that would result in a significant
net enrissions Increase of any pollutant subject to regulation under the
Act" [40 CFR 51.24(b)(2) and 52.21(b)(2)].  There is general agreement
     1 Note that, although the subject cases involve  PSD  review, the  same
issue exists with respect to major source nonattainment new  source  review
(NSR) permitting pursuant to Part D of the Clean  Air  Act  (Act).  Because
these cases involve PSD, and because nonattainment  NSR has basic program
requirements that make this issue less likely to  arise in that area,  this
memorandum focuses on PSD.  The conclusions of this memorandum apply
equally to nonattainment NSR, however.

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                                                                           4.32
that the proposed change constitutes  a  major  modification within the
express terms of the PSO regulations.2   For purposes  of brevity, I am
omitting the specific details of that analysis.

     The true area of controversy,  and  the focus  of this memorandum, is
the relevance of an exemption from  review  under the new source performance
standards (NSPS).  Specifically, the  NSPS  regulations provide that the
following shall not be considered a modification:

          The addition or use of any  system or device whose
          primary function 1s the reduction of air pollutants,
          except where an emission  control system is  removed
          or replaced by a system which the Administrator
          determines to be less environmentally beneficial
          [40 CFR 6Q.14(e)(5)J.

     The statutory definition of modification for both PSD and NSPS purposes
Is presented 1n section-111 of the  Act.  It has been stated that, for
this reason, the subject exemption  automatically  applies to PSD even 1f
it 1s not expressly part of the PSD regulations  (memorandum from Edward
E. Reich, Director, Stationary Source Compliance  Division, OAQPS, and
William F. Pedersen, Acting Associate General Counsel, OGC. to Allyn M.
Davis and Paul Seals of EPA Region  VI,  dated April 21, 1983).

     The better approach, which I am  setting  forth today, 1s that the
subject exemption does not automatically affix itself to the PSD regulations.
Rather, any such exemptions may be  made applicable to PSD only by express
rulemaking.

     There are several' reasons for  concluding that EPA did not intend to
make the exemption in question here pan of the PSD system, beyond the
obvious lack of language including  it in the regulations.  First, the
program is oriented toward ambient  air  quality as well as technology
based controls, 1n contrast to the  NSPS program which addresses  only the
latter.  The PSD review is a tool for air quality management and comprehen-
sive consideration of increases of  any  pollutant  regulated under the Act.
The NSPS exemption is Inconsistent  with this  approach.   In addition, it
seems very unlikely that EPA would  have imported the  "environmentally
beneficial" test into the PSD applicability calculus, inasmuch as that
calculus is strongly quantitative and objective  in  its  orientation, yet
the NSPS test is highly qualitative and judgmental.   In  any  event, the
overall PSD calculus is simply different from the NSPS  approach, and
hence one would have expected EPA to  give express indication of  an  intention
to bring the NSPS exemption into the PSD calculus If indeed it had had that
intention.
     2 The owner of the facilities has argued that this activity constitutes
routine maintenance, repair, or replacement, thus allowing it to rely on an
exemption from review [*0 CF3 5l.24(b)(2)(111)(a) and 52.21(b){2HH1)(a)].
1 conclude, however, that this situation does not fall within that exemption.

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                                                                          4.32
     The  fact that both programs use the definition of modification
 contained in section 111 of the Act is not, in- itself, sufficient to
 prove that Congress intended that NSPS exemptions then 1n effect would
 automatically be incorporated into PSD.  Congress has, of course, occa-
 sionally  ratified existing regulatory programs or approaches (e.g.,
 40 CFR 51, Appendix S and uncodified section 129 of Public Law~§P95),
 but such  is generally done with an express indication of that intent.   I
 have found no such indication in this case.  Apparently the only legisla-
 tive history on this subject is the remark that Congress intended to
 conform the meaning of "modification" for PSD purposes to "usage in other
 parts of  the Act" [123 Cong. Rec.  H11957 (November 1, 1977)].  Given  the
 distinct  differences between the NSR regulatory processes promulgated  in
 response  to the 1977 amendments and the preexisting NSPS regulations
 defining  "modification," it seems clear that Congress desired to conform
 the usage of that term in only a broad sense.

     Finally, I believe that the Federal  Register preamble segment cited
 1n the April 21, 1983, memorandum (43 FR 26380, 26396, June 19,  1978)
 should not be read broadly in support of automatic incorporation of NSPS
 provisions.  That preamble. Involving review of fuel  switches, addressed  a
 regulatory reaffination of an exemption which had already been  promulgated
 into the original 1974 PSD regulations.

     For these reasons, the subject exemption does not apply to  PSD and
the earlier memorandum cited on this topic is withdrawn.

 cc:  R. Bauman
     A. Eckert
     T. Helms
     E. Reich
     D. Tyler
     P. WycJcoff

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                                                                          4.33
               UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                       Office of Air Quality Planning and Standaras
                       ^esearcn Triangle Park, Nortn Carolina 27711
                              OCT i i 1386
MEMORANDUM

SUBJECT:  Applicability of PSD to Portyxijs of a Pi ap^ Constructed
          In Phases Without Permits
FROM:     Qarryl 0. Tyler, Director            .
          Control Programs Developmenf/uivis/on (MD-15)

TO:       David Kee, Director
          Air Management Division, Region v (5AR-26)

     This is in response to your correspondence,  dated September  30,  1986,
-aga.-ding the applicability of prevention of significant  deterioration
(PSD) review to a minor source that becomes major through  a  series  of
modifications.

     Your memo describes a series of modifications  to an  initial  minor
source.  With the first modification (A), the  original source  maintains
its minor status.  The second modification (B) puts the source over the
-a:sr source threshold, and the third modification  (C) results in an  emissions
increase greater than the PSD significance levels.  To complicate matters,
;he original source was not required to  obtain a  permit under  the State
implementation plan-(SIP) and all subsequent modifications were constructed
without SIP permits.  The source is then discovered at the point  modification
(C) is made.

     You present two schools of thought  with respect to the  applicability
af PSD review to the source.

     1) PSD review is applicable only to modification (C)  or,

     2) the State should view the plant  as it  first appeared to them, i.e.,
        as a major source without a PSD  permit.  This option would  requi-e
        that best available control technology (BACT) be  applied  to the
        total plant.

     In general, the first determination is correct.  The fact that the
Initial minor source and subsequent modification  were not  subject to,
or failed to receive, a SIP permit has no bearing on applying  the rules
of PSD applicability.  Except under the  provisions  of 40  CFR 52.21(r)(4),
tne "SO "egulations do not contemplate the retroactive  aoplication  of ?SD

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     * to o^eviousiy minor sources.   A  3ACT -sview applies  only  to the
emissions units wnicii define a major modification to an existing major
source or a new major source.   However, the ai" quality iiroact portion of
a PSD -eview must consider, as either baseline or increment consuming,
the emissions from all  emissions units  at  the source.
     I" tne extreme case where the source has -^aae a SB": i Derate effort to
circumvent PSD "eview (by the systematic  construction of  carefully  sized
emissions units which only in the aggregate would triage" -eview)  a
permitting agency may, however, make a  finding tnat PSD applies to  the
total plar.t.  Such a finding would have to be aaseo on clear evidence
that t*te source aaae a conscious effort to escape -avlew  3y knowingly
aiis-epresenting the intended source size tnrougn tne calculated juggling
of actje" a^a scheduled construction of emission units.  Fo- such  evidence,
the permitting agency may require that  the source pnjviae detailed  information
"egarding original construction plans,  timing and construction  contracts,
emission unit purchase orders, and project financing.  The source  should
be compared to similar facilities to determine the industrial  norm  regarding
final sou-ce size and configuration and consfuction scheduling.

     If you nave any questions regarding this matte", please have  your staff
contact David Solomon of the New Source Review Section at 3-629-5591.

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Loufs N. C
m vision oi1 *1r Quality
•J1r»ne«50ta Pollution Control  Agency
1035 u»,t County Boa«  8-Z
Oear *r. Chaneerlaln:

nils Is fn ri»spoase to your August 29.  1°»S  l»tti«r to to*4)(f van
of sy staff wnich inquire about  ths n-w source  revii«w  rules which apply to
t*w» conv»rs1«w to coal at the Hlhbard Station  Units 3 and 4.

W» concur with t*£ conclusion that the  change  1rr Units  ? and 4 to bum coal
1s ex«Bpt«d from the new source performance  standards (*SP5) 40 TFS ?art
Subnart Ha.  w» <»g not «9n»«t ftow-Y«r,  »1ti»  all  of
tf»i» NSPS •xenpt-lon in tn« attac?aw«»t to your letter.
It does appear, however, that tf» coitverHo" to coal  of  t.'nlts  1 antf
cans* the  plant to *• subject to th*> pn»¥»nt1w of  significant deterioration
(PSD) rey if the source
wuul.4 have •continuously* hart the capability of 4Cco*B0atitta, coal as a fu»1
since **for» Jannnry fi, 1975.  *< you can sen fro« the rule, a source 1$
.Hsqu*l1flAO ?ro» using the exeiwtlon 1f a cftanoe to coal is orohiMted under
a r^ierally enforceable perartt condition w»»1ch xas established after January *.
197*, oursuant to 40 CFR 5?.21 fti»» fed>rtlTy ?rowilqat9tr aoDroved SIP rules for PSD).

'•Hen resnect to fuel switching. th«r* are only two cases that  could arise for
units wnfcn fired coal before January S, 117S:  first, sources whlcft hw« a
continuous coa» firing caoabMlty since hefnre January fit 1°7S, and second.
sources wnlcn have l
-------
-.->? .
c-)«» -
                       s  of
           (i.*.. contraction «sr«ci Demons) far
                                     «nr.
                                                                '•»  T-*'' 'fr
                                                                 v-.v,  ">r  '»"!"
                                                                c->n«>0"*i »«• '--•'* t"is
                                                                 .»cr.,jAi?v
                                                                 r«»«;jna-iiy
               t.K«»
                                              into ?
                                                     - S.lsirc-J.
                                                      1s
                 sou re* could not -••
                 ia'
          frtai t>*«!  PS
                                                 c>!<«l
                                                 f
                                             in W
                                                              'J7T.  «t  '•^^ -">t
                                                                  t'   ror :n-
or a wjor -^aqlf 1c3t TPT, f?> tn* nnuret;  is  in *n «r«
                      for ?articuUt*s, (7) th- Srats 20??  *ot  »»«VP ar»
              new *nurc«? n»wl«» nil*, ind (A] t-t*
secondary mt t«tg
^•jst "se rrfi<4*»«!*t  in .iccordan^ with the "S
       Si. I*.  .Mow»»»rt  It <» total oflt*«t1al a*rtss1«*»» of Units 3 »n«i I ^*'OP« »i* aodi«car-ly yours.
-sir and Padlatlon  Unmet
      T. Ke«
      S. ^othhlatt
      L. Xertc*5«»r
      J: Paisle
      R. i
                        *. Van
                        L. Castanares
                        R. Sry-r
                        s*ry ncCutcner, CPDO
                                                                          1*1


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    Vj-         UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
      ;               Office of Air Quality Planning and Standards
                     Research Triangle Park. North Carolina 27711


                                DEC 1   1386
 MEMORANDUM
 SUBJECT:   Need  for Emission  Cap  on Complex/Netting/S'ources
 FROM:      Darryl  D.  Tyler,  Director
           Control  Programs  OevelopmenVl5ivi>^on  (MO-15)

 TO:        David Kee,  Director
           Air Management  Division, Region V  (BAR-26)

     This  is in response  to your correspondence dated November 4, 1986,
 concerning a request  from a State to provide further guidance on:  (1)
 the appropriate context for defining an emissions decrease for prevention
 of significant deterioration (PSD), and (2} the level of administrative
 effort appropriate to make  an emissions decrease permanent and enforceable.
 Your example involves an  applicant proposing to modify a source and wanting
 to net out of PSD  review  by taking federally enforceable restrictions
 or existing units.

     The PSD rules at 40  CFR 52.21(b)(2)(i) define a major modification as

           ... any physical change in or change in the method
           of operation of  a najor stationary source that
           would result in  a significant net emissions increase
           of any pollutant subject to regulation under the Act.

     Net emissions increase is defined as:

            . . . the amount by which the sum of the following
           exceeds zero:  (a) Any increase in actual  emissions
           from a particular physical change or change in
           method of operation at a stationary source; and
           (b) Any other  increases and decreases 1n actual
           emissions at the source that are contemporaneous
           with the particular change and are otherwise
           creditable.

     Major modifications  are, therefore, determined by examining changes in
actual  emission levels at the source.  Actual emissions are defined as:

           .  . . the actual  rate of emissions of a pollutant
           from an emissions unit, as determined in accordance
                ?aragraons(b)(21)(ii) through (iv) . . .

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           (ii)  In general, actual  •emissions as of a particular
           date shall equal the average rate, in tons per
           year, at which the unit actually emitted the pollutant
           during a two-year period which precedes the particular
           date and which is representative of normal source
           operation.  The Administrator shall allow the use
           of a different time 'period upon a determination that
           it is more representative of normal source operation.
           Actjal  emissions shall  be calculated using the
           unit's actual operating hours, production rates, and
           types of materials processed, stored or combusted
           during the selected time period.

           (iii)  The Administrator may presume that source-
           specific allowable emissions for the unit are
           equivalent to the actual  emissions of the unit.

           (iv)  For any emissions unit which has not begun
           normal  operations on the particular date, actual
           emissions shall equal the potential to emit of
           the jnit on that date.

From SJbparagraph (iv)t it is clear that a new unit's actual  rate o
emissions is equal  to its potential  to emit.  Any federally enforceable
physical and operational limitations which an applicant is milling to
accapt on the new emissions unit is  considered in evaluating tte new
u^t's potential  :: enit.

     To ietamina the actual  emissions decrease from the shutdown emissions
unit, the reviewing agency applies the method defined in subparajraoh (ii).
Speei'ically, the average rate, in tons per year, at which the unit
actually emitted  djring a 2-year period prior to shutdown.  Furthermore,
for t'ne emissions decrease from the shutdown to be creditable, the
reqjirement to shut down must be nade federally enforceable.

     Sifter the new unit's potential  to emit and the creditable emissions
decrease have been quantified, the reviewing agency should then evaluate
the extent to which the modification to the source will affect changes
to actual emissions levels at other emissions units.  Of particular
concern (as you have pointed out in your example) is where existing
emissions units,  historically operated at less than their full capacity
or allowable level, will increase operational levels for the sole purpose
of compensating for the shutdown unit.  If the emissions units in question
do not have source-specific allowable emissions, actual emissions are
determined as set forth in subparagraph (11).  If the. reviewing agency
detenti nes that an increase in actual emissions at the existing emissions
units will be directly attributable to the startup of the new unit, then
the agency can act (via an emissions cap) to limit the increase so as to
ensure no net emissions increase at the source.

-------
      Suppose,  however,  as specified In subparagraph (ill),  actual  emissions
 (for the purpose of performing  a  "net  emissions  increase"  calculation)
 are presumed to be source-specific allowable emissions for these  units;
 in such a case, there  is  probably  no increase in  "actual"  emissions.
 This results from the  fact that,  though in reality emissions  may  increase
 at these units, their  actual  emissions have  been  presumed  to  be equiva-
 lent to their  allowable emissions  and  their  allowable  emissions have  not
 changed.  In such a case, after the modification,  the  atmosphere may  in
 reality experience an  increase  in  emissions.  For example,  emissions  at
 the source  after modification could equal  the source's previous emissions
 level  (three units operating  at 67 percent rather than four units  at  50
 percent) plus  the additional  emissions from  the new emissions unit.   In
 effect,  a significant  emissions increase occurs at the source without PSD
 review.

     Although  the regulations provide  a presumption for the use of allowable
 emissions when  source-specific  limits  are  established,  the  preanble at 45
 PR 52713 (August 7,  1980)  states that:

            The  presumption that federally  enforceable  source-
            specific requirements correctly reflect actual operating
            conditions should be rejected  by  EPA or a state, if
            reliable  evidence is available  which shows  that  actual
            emissions differ from the level established  in the SIP
            or the  pernit.

Further  along that  section of the  preamble states  that:

            EPA,  a state, or source  remains free to  rebut
            the  presumption by demonstrating  that the source-
            specific  requirement is  not  representative  of
            actual emissions.  If this  occurs, however,  EPA
            would encourage states to revise  the permits or
            the SIP to reflect actual source  emissions.

Therefore,  a State may act to revise source-specific requirements  if
such a revision  in the State's  view  is  needed to establish  allowable
emissions limits consistent with historical  actual  emissions.   Accordingly,
in the modification scenerio you describe, a State  may  act  to place a
federally enforceable emissions cap, based on historical actual  emissions,
on the source.    It can do this on the  knowledge (or presumption) that the
three remaining boilers will (or would logically be expected to) operate
at a higher capacity in the future to make up for the  shutdown unit.
Simply shifting the load like this should  not result in a "credit" that
can be used to net a new emissions unit out  of review.  The emissions cap
would prevent such an occurrence.

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                                   -4-

     If the modification is a direct  replacement,  then an emissions  cap
is required on the new.unit's production capacity to ensure that its
potential to emu, when balanced against the shutdown credit,  does  not
result in a significant emissions increase.  Depending on the  available
shutdown credit, this may result in a limit in production capacity  at the
source.

     For a major source to net out of PSD review, a permit agency must
take all administrative measures necessary to ensure that the  requirements
to decrease emissions are explicit and meet the criteria for being
considered "federally enforceable."  The credits may come from any  emissions
unit within the source as long as the emissions unit meets the criteria
for being a part of that "major source."

     If you have any questions regarding this matter, please nave your
staff contact David Solomon of the New Source Review Section at 629-5697.

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             5.  PSD




Geographic/Pollutant Applicability
                                                      en

-------
                                                                               5.2
5.2    DHE:         October 23, 1979
       SUBJECT:      B.  F. Goodrich - PSD Modification
       FRCM:         Edward  E. Reich, Director
                    Stationary Source Compliance Division
       TO:           Stephen A. Dvorkin, Chief
                    General Enfcroanent Branch, Region II
       DISCUSSION:   See PSD/94
       CR:           12.6 [Bard Copy]

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                                                                       5.6
   MY 2 7  1380
'•rw Sourcn fcvlcw R.r-quircii:ent.s in /'rcas Unclassified
for done

Richard G. P heads, Director
Control Pronrans i?evelon«-cnt division  (Mn-15)

i-.llyn !'.. Davis, Pirector
ftir and Hazardous f'nterlals Division, Region VI

     .".ny perscn who desires to cnrstrsct 3 no*-/ raior source cf volatile
r.rnanic compounds In a rural area t'c-si mated -is ''inclasslflaMe" 'or
o?rr.e has three basic options as follows:

     1.  Agree to apply best available control technology; conduct an
ambient monitoring program under the PSD regulations; and submit, as
part of their permit application, proof that the area' is attainment for
ozone.  (Such ambient data rust be submitted before the pemit
application can be considered
     2.  Anree to meet the lowest achievable emission rate and obtain
adequate emission offsets.  [LAER nnd the offsets rust be enforceable
at the tine cf perait Issuance, and the offsets trust (in nost cases)
be achieved prior to Initial operation of the new source.]

     3.  Agree to r*cet the lowest achievable emission rate, and EPA
nust have approved regulations that require application of reasonably
available control technolony on all existing 100-ton or qreater sources
for which control technique onl
-------
                                                                              5.6
     The at-ove requlrcr-fjp.ts ar*  s; reified  in the PSS regulations, the
?ffset rullnq, and tiw •Vi.-inistrztor's  r.-bniary :•', 1C-7*: -r-srorandun.
IIT addition, I am attaching spv«»ral r-anos  which provide further details
of these requirements.

Mttachcents
cc:  Oaci- livita
     TCP I'olirs
     Darryl Tylor

bcc:  E. Tuerk
      D. Corchers
      r,. Fast
      S. Kuhrtz
      I. Artico
      A. Hoffer
      B. Steiqerwald
      R. Campbell
CPOO:D.R»K»nS:ww:ftn520HU: (TW-lJ»):x5251 :5/23/CO

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                      UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                 JUfl   9  1930
         ME*:ORA::DUK

         SUBJECT:    PSD Applicability:  Asphalt Concrete  Plants

         FP.OK:
         TO:
    Director
    Division of  Stationary Source Enforcement

    F.W. Giaccone, Chief
    Air Facilities Branch,  Region II
              This is in response to your r.en» of May 8,  19SC," regarding  the
         inclusion of fugitive emissions in PSD applicability  determina-
         tions under the 1978 regulations as-stayed.  Specifically,  ycu
         asked if fugitive emissions are to be included,  for purposes  of  the
         stay, in caees where the NSPS and NESKAPs regulations  Tor  a
         particular source category do not regulate fugitive emissions.

              The September 5, 1979 proposed PSD regulations provide for  the
         accounting of fugitive emissions in determining  a  source's  poten-
         tial to eir.it if the source is regulated ur.cer section 111  or  112 cf
         the Clean Air Act or is airong the source categories listed  in the
         definition of "major stationary source".  Fugitive emissions  are to
         be counted, for all these sources, regardless of whether the
         appropriate KSFS or HESKAP specifically regulates  fugitive
         emissions.

              The discussion in the preamble of the September  5 proposal
         concerning fugitive emissions states that:

              "EPA believes that there is no reason why a source cf  a
              particular pollutant regulated under the Act  should
              escape review because the emissions of the  pollutant  are
              fugitive, when a source of the sane pollutant has to  get
              a permit if the emissions are not fugitive.   In  both
              cases the emissions would deteriorate^ir quality
              regardless of how they emanate.  Thus, it serves  the
              purposes of biSR tc scrutinize the one as well as  the
              other."
                                   CONCUSKMCSJ
   ""•
DATE

EP* font 1320.1 112.JO)
&Mh
                                             	1	
                                                                OFFICIAL FILE C3PT

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     Under the proposed  FSD regulations  source is defined as any
facility under KSFS  and  is  intended to er.ccmcass all che pollutant
er.-itting facilities  located at one site and under conxucn control.

     Since  the source  renticned in your meno is an asphalt plcnt,
subject to  SJSPS  under  40 C"R 60.90, fugitive emissions, frcr. all
activities  at the site,  should: be included in deterrcinincj FSD
acr-licability under  the  1S7B regulations as stayed.  This would
include fugitive emissions  from cold aggregate storage piles.

       If you have ar.y  further questions regarding this
determination, please  contact Janet Little John of ny staff at
755-2564.
                                  Edward C. Reich
cc:   Peter Vyckoff (CGC)
      Jin Kcigold (CACPS)

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                       TATES ENVIRONMENTAL DROTECT!ON AGENC*
            ^, 19SO

       Interpretation of cronosed  "SD  Regulations


  FROM  F. W. Giaccone, Chief
       Air  Facilities Branch

    TO  Edward E.  Reich, Director
       Division of Stationary  Source Enforcement

       The  prooosed  PSD regulations provide  that  fucitive emissions
       should not be included  in an applicability  determination ex-
       cept in the case of  26  specific industrial  cateoories,  and any
       other stationarv "source  cateaorv. . .recul a ted  under §111 or
       §112 of the Act""
       My ouestion  is:  In  the  case  o*  an  asohalt  Plant subiect to
       Suboart  I, can fugitive emissions  *rom ancrrearate  stockpiles
       be included  in an aonlicability deterrinatinn  even thourh Sub-
       oart I does  not  regulate these  emissions,  i.e.  can fugitive
       emissions  be included in cases  where  the N?"S  or NESHA°S reg-
       ulations for a particular source cateaorv  does not regulate
       such emissions.  It should be noted that cold  acgrenate storaoe
       piles are  not included  in the designation  of affected facility
       at §60. 90 (a), although  common practice generally dictates
       the stockpiling  of  cold aggregate  at  the nlant site,  and that
       stockpiles are not  considered cart of an affected  facility in
       the proposed F5PS for the non-metallic minina  industry.

       This branch  is in the orocess of reviewinn a ootential '?£ can-
       didate asphalt plant, and an expedited resnonse woul^ be creatlv
       appreciated.

       cc:  R.  Ogg
            K.  Eno
            P .  Kahn
            R.  Stein
EP4 Font 1310-4 (Rt«. J.74)

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                                                                          5.3


                          •.VAS-MNC-~ON DC  20*6:
                                                             OFPlCt Of
                                                       AIR. NOISE. *NO RADIATION


 SUBJECT:   PSD Evaluation of Secondary Emissions for Houston Lighting
           and Power

 FROM:      Edward F. Tuerk,  Acting Assistant Administrator
             for Air, Noise  and Radiation (-ANR-443)

 TO:        Allyn M.  Davis, Director
           Air and Hazardous Materials Division  (6AAK)

     This  is to convey the  final  response to your memo of March 13,' 1981
 to Darryl  Tyler, Acting Director  of Control  Programs  Development Division
 (CPDD), in which you asked  for assistance in the  PSD  review of a mine-
 mouth  power plant application  from Houston Lighting and Power  (HL&P).
 In particular, you were interested in how the emissions of  the nearby
 mine under different ownership must be taken into account by HL&P,
 recognizing that such emissions can often have  significant  ambient  impacts.
 This memo  also serves tc document CPDD's involvement  to date in developing
 this response.

     As you know,  issues associated with the HL&P application  are closely
 related to those raised by  the American Mining  Congress (AMC)  in their
 petition for review of the  PSD regulations to the U.S.  Court of Appeals
 for the District of Columbia Circuit.   For example, in  their petition, AMC
 has asked  that an exemption be reinstated which again  would  allow sources
 to ignore  the ambient impacts  of  certain fugitive particulate  matter
 emissions.  ' Because of this linkage,  we agreed to explore how  the HL&P
 and AMC issues might jointly be resolved while Region  VI continued  to
 work with  HL&P to develop an otherwise complete application.

     We further agreed that the joint  AMC/HL&P resolution would no  longer
 be pursued  if it would begin to jeopardize  unduly the  company's plans  for
 construction.   HL&P had informed  us  that it  must  commence construction by
 October 1,  1981.  On May 1, 1981  Jack  Divita of your staff  informed  us that
 the company's  PSD application  was  nearly complete except for an analysis
 that might  be  required for  secondary emissions.   Since  a joint resolution
 of the AMC/HL&P issues was  not yet possible, we agreed  to explore otner
 independent ways to resolve the secondary  emissions issue arisina from
 HL&P's PSD  application.

     The Clean Air  Act requires that  PSD review include a detailed  and
extensive air  quality impact assessment of  the effects  of a  proposed source.
This includes  evaluation  of the source's  secondary emissions.   See  Si65(a)(3).
 (B) and 40  CFR 52.21{k).  Secondary  emissions are defined by the regulations
es those which would result from  the construction or operation of a  major

-------
stationary source or major modification but do not come from tnat source
or modification.  40 C.-R 52.21(b)(18).  This definition sets out four
tests to be used in determining whether such emissions are to be included
in air quality impact assessments for PSD purposes:  the emissions must
be specific, well defined, quantifiable, and impact the same general
area.  The mine's emissions appear to meet the first three tests, but
for reasons discussed below, they fail to meet the fourth test.

     The term "impact the same general area" embodied in the fourth
test to determine reviewability of secondary emissions is not precisely
oefined.  However, tne scope of any required analysis has to be limited
to those areas where both secondary and primary emissions are known to
conraonly impact.  Based on recent conversations with CGC, we have determined
that the most useful quantification of this concept for use in Class II
and III areas is that of the area of significant impact, as set forth
in the Emission Offset Interpretative Ruling (40 CFR Part 51, Appendix
S, III.A.) and tne preamble to the 1978 PSD regulations (43 FR 26398,
June 19, 1978).  Pursuant to this approach, the significant impact area
for total suspended particulate natter  (TSP) or SO. would be all those
areas in which the source's emissions would produce an ambient impact
equal to or exceeding a concentration of 1 ug/m  on an annual basis or 5
ug/m  on a 24-hour basis.

     Modeling analysis reveals that HL&P will  not  cause a significant
ambient concentration of TSP at any location.  Therefore, my-recommendation
is that Recion VI not consider the emissions from  the mine as secondary
emissions in evaluating HL&P's impact on ambient TSP  increments and
standards.  I believe that the mine's emissions do not meet the definitional
test for secondary emissions since they do not impact any area of significant
impact which would be created by  the  direct emissions of HL&P.  Thus,
HL&P's application can be  processed without regard to any air quality
•impacts from the  nearby mine.

      I trust that this response will  be useful to  you  in your efforts  to
process HL&P's  PSD application.   Let  me know  if we can be of further
assistance.

cc:   R. Campbell
      £. Reich
      D. Menotti
      L. Wegman
      0. Tyler

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                    UNITED STi"5 ENVIRONMENTAL SRCTECT!0^ AGENCY            5.8

 r'-t   Harcn  :i, ;9B1                                            ~~

-j£c-   Evaluation of Secondary E.-i'ssions in PSD Review
   a*   Allyn K. Davis, Director        *                                ^    ^  «
        Air and Hazardous Materials Division (6AAH)                        •£. -      
-------
Another possible consideration is whether or not the source causing the
secondary emissions has an impact area.  If a source has no impact area,
could we exempt secondary emissions on that basis?  Also, what effect  does
separate owners of the power plant and mine have on the secondary emissions
issue?

I ask that you provide guidance regarding the above questions.  Due to the
critical timing of these applications, I ask that you respond by March 30,
1981.  If you have any questions, please contact Bill Taylor at FTS 729-1594.

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                                                                      = 3
5.9
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
      CR:
March 31, 1981
Summary of PSD Policy Determinations
Thomas W. Devine
Air and Hazardous Materials Division,  Region IV
All State/Local Directors
Region IV
Summary of PSD policy determinations during the period
from November 13, 1980 to January 12,  1981:
   1)  Treatment of fugitive emissions with regard to
       PSD applicability.
   2)  A proposed physical change must, by itself,
       result in a net increase greater than de minimus
       in order to be subject to PSD (see PSD/120).
   3)  Allowable emissions can be presumed to represent
       actual emissions for new sources and, therefore,
       an increase in production at the PSD source is
       not an increase in actual emissions.  (Also see
       PSD/120).
   4)  Example 3 above occurs at an existing source
       which did not have a new source construction
       permit under the SIP (see PSD/120).
   5)  An Iron foundry is considered to be one of  the
       28 PSD categories (i.e., a secondary metal
       production plant) if it uses scrap metal  to
       produce iron, even if the metal is poured into
       molds.
  . 6)  Applicability of offset requirements from new
       source with a SIP construction  permit whose
       permit conditions did not prohibit subsequent
       i ncreases.
   7)  A whiskey distillery is not considered to be  one
       of the 28 PSD categories, specifically a chemical
       process plant.  A chemical process plant is any
       establishment in Major Group 28 of the SIC  Code.
       Beverage distilleries are in Major Group 20.
   8)  A proposed Increase in emissions is not subject
       to PSD unless the triggering increase is of the
       same pollutant as the one for which a significant
       increase results.  (Also see PSD/120).
   9)  The 50 ton per year exemption under 40 CFR
       52.21(1)(7) is pollutant specific.
  10)  Operating permits are not Federally enforceable;
       however, the State can impart Federally enforceable
       conditions to a construction permit issued  for
       the source in accordance with the New Source Review
       procedures of the SIP at the time of issuance.
3.16 [Hard Copy]; 2.15; 4.16; 10.22; 12.9; 13.5

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                                                                      5.10
5.10
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
       CR:
July 31, 1981
Summary of PSD Policy Determinations
Thomas W. Devine
Air and Hazardous Materials Division, Region IV
All State/Local  Directors
Region IV
Summary of PSD policy determinations during the period
from February 5, 1981 to July 15, 1981:
   1)  Is a source reactivation subject to PSD (see PSD/117)
   2)  The complete list of organic compounds not
       considered photochemically reactive and, therefore,
       not a YOC for purposes of PSD is detailed.
   3)  Construction of a major source in a nonattainment
       area projected to be attainment (based on the
       approved Part D SIP) before startup, is not
       subject to PSD or Part D requirements.
   4)  Determination of modeling baseline air quality
       levels for 3-hour and 24-hour averages is discussed.
   5)  If an ambient monitor has been shut down, data
       obtained may still be deemed pertinent and useful
       under certain conditions.
   6}  A minor source which locates within a PSD area
       and impacts a nearby PSD area may trigger baseline
       and consume increment within each of the.areas
       under certain conditions.
   7)  A minor source which adds a major emission point
       could not escape PSD by considering previous
       decreases which cause the net increase to be
      Jess than the major source threshold.
   8)  An existing source may change its designation
       from major to minor by accepting a Federally
       enforceable limitation.
   9)  The 50 tons per year exemption under 40 CFR
       52.21(i)(7) cannot be claimed for an emission
       increase of any_ pollutant unless the increase of
       each pollutant is less than 50 tons per year.
  10)  ThT~air quality de minimus level for M02 is
       14  g/n»3 annual average, as stated in the
       published version of the regulation.
2.18 [Hard Copy]; 3.19; 4.19; 6.11; 7.5; 10.23

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                                                                              3 . ii
                  UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
>ATE     2 9 JUN S83

JECT     Exclusion of Exempt Solvents
        From VOC Calculations
       6. T. Helms, Chief
       Control Programs Operations Branch  (KD-15)

  TO    Chief. Air Branch, Regions 1-X

            It has been brought to ay  attention that there has been some
       misunderstanding by various parties  concerning the proper method of
       excluding exempt solvents from  VOC calculations.

            This memorandum is  to clarify that exempt solvents should be subtracted
       out from coatings just  like water, with the ultimate value of interest
       being the mass of VOC per unit  volume of coating less exempt solvent and
       water.

            Attached is. a- memorandum dated  February 26. 1981, from David Salman,
       Chemical Applications Section,  Chemical Petroleum Branch, to James Berry,
       Chief, Chemical  Applications Section, Chemical Petroleum Branch. Emission
       Standards and Engineering Division.  This document includes a discussion
       and examples of  calculations related to the VOC content of coatings with
       exempt solvents.

            Should you  have any  questions,  please contact the Technical Guidance
       Section (Brock Nicholson  or Bill Polglase, FTS 629-5516).

       Attachment

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                                                                            5.11
                     DOW CHEMICAL  U.S.A.
 Hey  13,  1983                                                •AWTOW tuumc
                                                            am DOW CENTER
 Mr. Tom Holms
 Chief of Control Programs, 0 pent I ens Branch
 Hall Drop  15
 U.S. Environmental Protection Agency
 Research Triangle Park, NC  27711

 CALCULATION OF VOC CONTENT OF GRAPHIC ARTS  INKS CONTAINING COSOLVENT BLENDS WITH
 NON-VOC SOLVENTS

 Dear Mr. Helms:

 Vo are writing you In accordance with a recommendation by David Salman In the
 Che*lea Is  4 Petroleum Branch of the U.S. EPA.   It  la oar hope that you can clar-
 ify differing Interpretations on the calculation of VOC from graphic arts Inks
 containing the non-VOC solvents 1.1,1-trlehloroethane and mothytene chloride.

 As you are aware, the Federal SPA has exempted these t«o solvents from the defi-
 nition of  VOC.  Federal Register references on that exemption are:

                       42 FR 35314 of July 8. 1977
                       42 FR 3274  of January 16.  1*79
                       44 FR 32042 of June 4. 1979
                       49 FR 32424 of Hay 16. 1980
                       45 FR 48941 of July 22.  1980

 To date. 92S of the states with SIP'S on VOC's have exempted 1'. 1, t-tr leh lore-
 ethane from the defInItlon'of VOC and from subsequent control of VOC In surface
 coatings and graphic arts.  About B8f of these states have similarly exempted
 methyl one chloride.

 In the state of Tennessee, a graphic arts company, which has been working closely
 •Ith fr» local EPA representative. Is ready to use this option to meet VOC emis-
 sion limitations.  However,  a question has arisen on hov to treat the non-VOC
 aolvent In determination of  VOC content from their gravure Inks.  Specifically.
one materials supplier believes that the eay the regulations are written preclude
 1,1,1-tr I eftloroethane and meThy I ene chloride being blended with VOC eoselvenrc.
 In their  opinion. It Is an "all or nothing" situation.  The verlous states SIP*s
road:

     •The volatile fraction  of the Ink, as applied to the substrate, contains
     25.0 percent by volume or less of organic solvent end 75.0 percent  by
     volume or more of eater;'

 Since 1,I,1-trlehloroethene and eettiylene chloride are neither (volatile) organic
 compounds nor water, the supplier Interprets the above to mean that «HY  Ink vfing
a blend  of 1,1,1-trIchloroethane and/or metnylene chloride vlth other organic
solvents  vfll always calculate TO 1001 organic solvent.

                       .•HMO UNIT O* TH« OOW CHEMICAL COMPANY

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                                                                      3.11
             UNITfD STATES -.WIRONMcNTAL PROTECTION   SMCY
                Of TICS of Air  Quality  Planning and Standaros
                Research Triangle  Park,  North Carolina 27711


BATS:    FES 2 S 1981


      VOC Ccntent of Coatings  with Exempt Solvents
FROM:  Dave Salman
     -Chemical. Applications Section, CPB   (MD-13)
     Oases  Berry,  Chief
     Chemical Applications. Section, CPB   (MD-13)

     Many States have exempted certain volatile organic compounds of
negligible  photochemical reactivity, such  as 1,1,1-trichloroethane and
methylene chloride from their VOC rules.  Recently I was asked by a
representative of  a major supplier of such solvents how to calculate the
reactive* VOC content- of a coating that. contained both VOC and exempt
solvents2.   1 suggested that exempt solvents should be subtracted out
from coatings just like water with the ultimate value of Interest being
the mass  of VOC per unit volume of coating less exempt solvent and
vatsr*.   X  provided several sample calculations.  These examples are
attached.
A
  The word reactive has been dropped after this point.   All  subsequent
  references to voc 3n this memo and attachments mean reactive VOC.


  The' tsrm exesst solvent as used in this memo and attachments means those
  compounds or negngicie photochemical reactivity that States are not
  required to control in their ozone SIPs.  These compounds  are listed in
  Attachment III.


  Since coatings that contain exempt solvents such as 1,1,1-trichloroethane and
  methylene chloride are not likely to also contain water as a solvent,
  the..lass water tera has been dropped from the attached examples.

Attachments (3)

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                                                                     5.11
                            ATTACHMENT I


     . "Given the mass of VOC and mass of exempt solvent per unit volume of
  coating, determine the mass .of YOC per unit volume of coating less exempt
  solvent.

      Let  x  •  mass of exempt solvent per unit volume of coating

           y  •  mass of YOC per unit volume of coating

           d  •  density of exempt solvent

           z  •  -mars .of VOC per unit -volume of coating less -exeapt solvent

      Then  z •
      Example 1 - Each gallon of coating contains 3 pounds  of VOC and 2 pound:
 of exempt solvent.  The density of the exempt solvent is 11  pounds  per gallon.



JL. -              2 •  —^-r  -3.7  pounds of VOC per gallon of coating
/.'*'.';*•'               ••TT          less exempt solvent
' ' a   t  •                    ' '
      Example 2 - Each liter of coating contains 0.2 kg of VOC and 0;4kg
  of exempt solvent.  The density of the exempt solvent is 1.3 leg per liter.

                          °'p .  - 0.3  kg of YOC per liter of coating less
                                   exempt solvent
 Note:  The tera VOC as used above means reactive VOC only.

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                               ATTACHMENT -II

      A paint f omul a tor wants to 'add both  VOC  and exempt solvent to
 0.25 gallon's of coating solids to make  1 gallon of coating.  The coating
 must meet an emission liait of 3 pounds of VOC per gallon less exempt
 solvent.  What is the maximum amount of VOC that can be added?  fow much
 exempt solvent should be added to make  1 gallon of coating?

      The answer to this problem depends on the density of the VOC and
 exempt solvent.  If  we assume that the  VOC density is 7.2 pounds per gallon,
 the exempt solvent density is 11 pounds per gallon, and let:
Then:
      x • maximum pounds ef VOC that can  be added
     x  • .75 +  -
   .58x  • .75


     x  • 1.3 pounds VOC


     Since  the VOC has  density 7.2 pounds per gallon, this is equivalent to:


        » .18 gallons VOC



     Finally, to make a full gallon of coating the forsulater must still add:.

     1- .25 - .18 - V—.43 • .57 gallon exempt solvent

                                or

     .57 x  11 • 6.3 pounds exempt solvent

     If VOC or exempt solvent with different densities were used the results
would differ.  The same calculation can be "done using the appropriate solvent
densities.


Note: -The term VOC as used above means reactive VOC only.

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                     ATTACHMENT III

Compounds of negligible photochemical reactivity that States are not
required to control in their ozone SIPs as of February 1981:

     methane
     ethane
     1,1,1-trichloroethane (methyl chloroform)
     tri chlorotrifluoroethane
     methyl en e chloride
     trichlorofluoroaethane
     dichlorodi fl uoromethane
     chlorodi fluoromethane
     'tri fl uoromethane
     di chlorotetrafluoroethane
     chloropentafluoroethane

     Federal Register References:

     42FR35314 - July -8. 1977
     44FR32042 • June 4, 1979
     45FR32424 • May 16. 1980
     45FR48941 - July 22. 1980

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               UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                     Office cf Air G'jalcy Planning and Standards
                    Research Triangle Park, Nortn Carolina 27711


                                UAY   3 1385
                        isoranaun  =1:   TS?  ?S3_IrLcreaesi ^ans.m^£Tc^ in
          North Carolina

FR3M:     Gary McCutchafi,'  Senior Engineer
          Maw Source Review Sect; on, SIB, C?OD (MO-15J
          r:i*a Trjtrsc,
                           v.' Sscfion
     I" -*s::nsa tc tr. 'Dctc-ar  25,  1S34,  re-uest frca Archie iee, Seg-lon IV,
:: you racircing wha:.-:*.-  3  cnanga  in  the  Nor*.-: Carolina State implementation
:':• tc^s^ss 'ir.crirr^:.  •  >jva '•svi -iv;eG  e Sa::5"5er 20, ;93i, Isf.ar from
r-- JCTSC-. t?::s^. iir 5::a"::y Sactisn,  Kc.-tr, Carolina D:vision c: i.nvirsn-
 «T.i'  >'ar.s-:-s^a^:. 35 •--•;"  s  :-a:*r  :y ^ocsrt waa:*.". a.ii a Deca-ber 21. Iso-i,
;r:£rs^ =£c:s:er rocice Csa":-".5 with  tiris SI? cringe.
   Tne ,05i tier, ts\*r» :,.• Narjn  Csrslir.a  appears  to be this:

   /:/ Opr.-sKrs •:•* seve---T ;ow3r  aisnt  bc:»ers  have incicates tr.at tr.ev
                                   i'  pa-tic-lcte
i-.tir.g fr-c.7, C.LC :c C.I- ?ourc5 per million St^).
           tc -reet  :.-,=  Stits's  c.-^ini'  pa-tic-lcte aass eaiission lisiits
     {2: Ir. June 1??1.  the'Scata  c-arted a 3-yaar variance; settirc interisi
::r.::s of j.2C to ! .2:  .:c-jrcs  psr 7.-'nic-. £t», wit.n the requi rsmert tnat
:^e utilities ccnc-ct a series af stack  tests wiicn *ou1d provice c*ta for
33tt:nc jenr^ner.t li-its.
     ':• T-.* Sr.i-i  :-:;:ses  ::.-r.5-=-:t 'is::5 c* :• .1C to 0.25 ?cu-.;s ;er
-:'::•• ^t-. ^.r.ic?  -^s  zs.irfa1^ iower tnar. the variance Units :jt nigner
   ^"t'-lT^a Stata  s""ec5S  t^at ?30 incrsssnt is "ot cansusec iy tr.es e
•5i.-":4r?i'-.s-t 'lisr'ts  teCi-jse tnere nas seen no c.-ange in act^a'. :s-t:cj'. *te
-.2tt5r sr-. ssisr.s  fr:.- t'lsss j*i:s.  Xartn Carsli"2 basei tn:s sta:s-e.'.t
                                                   ST.S as

-------
 no  action  on  the  annual  linits  1"  the  December  21,  I9S&..  Federal  Register
 because such  limits  do  not protect sncrt-term Increment.)

          (c)  The  coal  burned  before and  during  the  variance  is of similar...
 quality and its quality can be  monitored at will.

          (d)  The  new limits are set at levels appropriate to what the
 control equipment can  meet on' a continuous  compliance  basis  if properly
          and  maintained.
 "crth  Carolina  submitted  trie Woctsn  paper  to support  that there has  been
 (an-i would be;  no increase in  actual  emissions  froa these utilities -as
 a  result of the new limits.

     It is tPA's position tna't a ?SO  increment-consuming  emissions increase
 would  result from the new emissions- limits and  that the acceptability of
 tr-:s increment  ccnsump &i an nust be determined before  the  new  limits  could
 ae approved. This position is presented in the attached  February 25r 1985,.
          n front Sorof ani Scnnaecarj  to  Archie  Lee.
      There are several  aicit'or.a'!  issues  raised  iy  :ne  State's  proposal.
 "i-st.  trre State eviaer.tiy con-ci-iias  that tnese  ut: lilies  cannor meet  tne
 t-'rirsl  limits.  Hcwavar, as Wocren  points  out  on  page 12 of his  paper
 'i""rrsu7?r in- s. nacativa zy.&] , these  unrts at one time  emitted  ar  races law
 *~::ir.  to. srovice suraa.-r far an "S?S of O.G3 pou.-.cs  par mfllior Stu.   Tnare
 :s  "z evisance giver ir: tna Woctar papar that a^j- effcrt was made  ta isiprave
 c=2-iti3r cr -ratrrtarcTce s* tr*.$ cc^trol  aquip~eTr :o  attas^t  to st least
 -.re: n* origfnaT ssisiicns iisits, mucl less the ?<37S  levels.  Acceptance
 :f  l-=  currefft central  Isve's shc-Jd  nat have occurred  without  a carafuT
 s^c cetiilea study af tne reasons for tne aecrease  in efficiency,  parrrcularly
 tha possibility of impTOvac sraintanancs.
      Second,  t»ra concept of ccntinuous (opacity)  versus  intermittent (staclc
 :sst) compliance is « good one, but much more extensive  attempts  than North
 Carol lift's  have failed to find a ^rxable mass-to-opacity correlation.  The
 State has not Indicated in the Wooten paper: .

      (1)  Whac :^e csntinuous..:^^: :y. lisrit would  :e,
      (2)  How fis'cpiciv -'-it i^uld di'fer frcsi r1:? usual  opacity limfrs
 :" iC*C on Ucil a.-s,

      (3)  Hew rt would prctect Che short-tarsi incramants, since :t appears
"tr 3a Intended: for use «i-- me State's. annual  emissions limits.

      (i)  How tie opacity ':rr:ts wer's derived frcr t.na ,-=55 emissi;ns tasts.

      Thirt, tha Wocta- ^ac*- pr»sants 5 "e-jt.Ty j:=ti5ticil  app-ciin f;r
 »" '  ;• t-a tasT csti !i-"I-.i"-: -asu^ is ..."ic" 2vC5-s::ri avs

 r :=r:.  •T*" 'c" :••; f.a -=•• ''~i:.  ^ :=s :, t":s is ar,

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     Finally,  the  State  contends  that  actual  emissions would not  increase
because:

     (1) The control  equipment is  the  same.   Operators, of course, -could'. do
rs.ny things that' would decrease the  control equipment effectiveness, .including
turning the equipment off.

     (Z) Day-to-day  compliance would be  encouraged  by the opacity limits
S"ince there are usually  opacity limits on  bailers anyway, tni-s argument
doesn't seen appropriate.   In  addition,  the opacity limits referred to  are
far an annual  limit  rather  than tne  short-term  limits.

     (3) The coa.1  burned is  (and  presumably will be) of similar quality.
"irst, the Wooten  paper  compares  a factor  alpha, which is pounds  sulfur per-'
million 3tu divided  by the  percent ash.  /According  to the paper,  a higher
a'pha should improve precipitator performance,  all  else being equal.  Wooten
excludes tnat there has been  "little  practical change" in alpha  over the
;--£ars; I disagree.  Roxborc's  alpha,  decreasea over  25 percent, from 0.072. to.
G.353.--Tna H.?. Zae aip'-a.  increased 30  percent from 0.059 to 0.077.  Changes-
•-• a'pna ficvs,  tharefcrs, cccurrac.  In  addition, tne State indicates that
: ' -if. rsonitar coal  quality  at will, but implies that it is not doing so.
     fcre, csa.1  quality  could  change (and  has changed) greatly.
     (-> The new  grrssisrs  limits  ara care appropriate  to what  the control
*:-:r??5-Tr ca.T ss*t 3t «. c^rrauo-as compliance,- oasis-  I can understand
-••„.• trris is  coffstiaraa a -aascn  fcr-bsTiavin-g iist  actual sraissions  ^tes
*i'-e r,;- irrcr=is»c, at leist wfrerr  comparing sraissions under the new  limits
tr e^issTans uacer tn* valence, but tnis nas little to do- w-ftr. whether
          fs ca^su-rec if s!Tawa5l5, rawer thsrr  sityal, snissicns limits
         'or PSD  increaerrt' consumption  calculations.  Of course, as  stated
         there  is actnirrg in ti:a Waoten paper which supports  the underlying
           tnat eh* test ic^ presented by tn* State represent  the best
central tnet can  ie acnievec by  the units tested.

     Despite the  abave-r-errtionsd quirics in the State's  submission, EPA  has
e'*:tad to accspt ths SI? revision providing  North  CaroVina conducts, an
:-;.-3fflent caTSu.'rp-ion darrc^strition in  accordance: wi th  the reorjary  2S
siio/./Scnnesoftrj  Teno.  :-«cv ***-, tslephone conversations witn Rogsr  Pfaff,
a*5*5n IV, or Ap^rl  L» L5w. ys. L?e Dan-Tel ,  ,'tartn  Carolina,  on April 2f
i'li-zitsi; "at  tr=-r .<5*^ szi'. '.  S2^* isi«es on trifs.  A seating wit" Soggr
i-: \if '.ioocsrc *-4? 5:*»r-".*-: *ar  Apri'i  a, ISta, to resolve we issues.

     At me  r.?ril  aiaesti-TS, t^re* issues, were identifies *nc re
      (1)  Annual  Average  I^crs-ysnt Cbffsaapticn.   In- caTcu'at:^ "futun"
(::st-£I? rev:sor;  era: ss: ess,  snou'.d actaa;  or allowable capacity  anc operating
^c."  values  b* -iS»dT  S:nc* tnese are existir; sources  wit-T ista on c;=ra:1ng
"t.-i a*i Ci^iz^":/  -j.f'lt22l-in (bta per hsur)  *-.?.  since tner* ;.-£  r: -iranges
2- -•:•:- fi caf' arn  *:;-«ts.-;"s:r:  :y tn-rs SI?  rgvis:;^ wnics «.3uli =:fe;: ;r

-.-:-  :-r  =i-c  ::4*;-.->i ;•-:=" s «-:uM :cc.- in  :-r :.::..-;.

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     Although agreeing with the above, we concluded as a group to require
calculation of allowable levels, not actual levels, of emissions.  The
definition of actual emissions states that when actual emissions cannot be
determined (and h.ow can we determine actual 1985, 1987, etc., emissions?)',
men allowable emissions are to be used.  Allowable emissions, of course,
would use maximum (100?) capacity and 8750 hours per year unless there were-
2--.forca-5ble const faints' on me source.  Therefore, we concluded that for
annual emissions (and annual TS? increment consumption), future emissions
would-be represented by allowable emissions.  It should be noted that this
does represent a departure f ron: the previous Region IV thinking of using
maximum actual operating hours and rates instead of allowable.

     Actual emissions would be calculated using the average of all valid
test results.  Capacity would oe based, on the average btu per hour for each
boiler, calculated by ta'-!l sfctaln if *s sisip^
avers-*-; r-^e tpy for twa rep-aseitsffve- ^ssrs.  Hcwever, by cSta'ting arr
averara r«r 'rsur "act^sl" a^S5*ons ?^rer we Mve y eslss'cis ^zts "Tat car
:e f-^ut into, the nods', since «e "^ave rescTved tne question of w.-..it "hours
per yes-" to use.

     Tne approac"- cut": reel asove provides the maximum amount of ?SO incrgment
corsjrpt'cT caiTS,* itaTt witt trre recaral resulations and confoms-with tne
intert cf the -.-jjjst 7, 1532, preamble to che ?SD rales.  Of course, a
scu.-ce wrrich meets tnis-flexisaw test af incre«ienc consumption is evaluates
an the basis af actual emissions when the next PSO source applies for a peRR.1t..
so the use of the .-ncre ccnse^ative maxinu-n increcent consusspticn approach '
lass ~ct i- tire -long rjn arv'ficiaTTy lisrit grswth i.i an area.
                               -^t ta the ^-est'cn of errissions  c=lculct:cns
*s t^e ps'ic.- o* ieT2rsri"i-i.-  irral is-^ce wi-n lcT-;-ta.-s:  {annual)  '.acis-.a!
-aw«var, t:tat tne "tnree year" concept can be affected  by  ecano^-:c  cor,aitionsr
                   rates snoulr  "trj'y reflect  the  rates that  can as  sx;ectac
iirln- zao-i eCc.TOisic ti-«s."  This policy was cor.firrsec  in  a Mar en  25,
IrSs, -*-!2-and-r; fry. 3. T. Hft!.rs t: »7r:sco.t A.  Smitrs, witn aclTtiSflil




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                                                                                  5.19
                 we snoula ~c<* aa/ta:n  mat New  Source  Rev-lew  personnel  remain
     aware of these, differences and  that tne correct  approach is used.

          (2)   24-Hour I ncra^ert Consumption Calculations.   The February  25-
     Sozcf/Scnneeoerg  memo specifies  tnat tne oase'nne 24-hour  boiler emissions
     are  calculated using actual  emissions and "assuming maximum actual operation
     over any typical '24-hour period  during the two years prior to baseline
     triggering or other representative  figure."  As  detailed as this instruction.
     seems, it still leaves rocn for  several  interpretations because of .tne use:'
     of "typical."  Suppose,- fcr example, that the source actually operated at.
     100*  capacity curing one 2±-frcur period over a two-year time span.   This
     constitutes tne naxio;n actual  operation level,  but certainly isn't  typical.
     The  problesr,  of course,  is at what  frequency ioes the maximum actual operating
     rate  become typical?  Would five 24-hour periods at IQQi capacity be* acceptable
     as typical?  If not, would 10 or 50' or even  100, or would  it take operation*
     at a  certain  level  at least 5Q«  of  the tine  to-be called typical?

          We tentatively  decided- at  the  April  9 meeting  to use  the maximum  actual
     operating rate unless that rate was so unusual as to constitute the  equivalent
     of cirsuaventist.  As a rule of  thumb, one would expect to see such  maximum*.
     occur »r least 5  percent of the total 24-h3:»r operating time periods (which
•  ^"ifti.ts  -rsnsperat-ng tia* aeriocs  don't count  in- ntaicing  tnis determination) .
/^TJris cg^far^s  witn afi-earliar Region IV  calicy determination  -C2?y  sttacnes -
     >e  use :f trg 5% ;-j- tt 1 : •*• is interried cn'y  tc  rale out. the psssisility
     tnat =. lourcc coulc c*l::»ri»Iy  aparste z^'.j  a  *ew  tines at very ni^h
     ratss  :r.  orrsr re csc^ss* ircresssftu consu~t:rr at  some fatura  li^-s.  Zf
     course tris  affects tr* ar^unt of irrcrsnent  ccnsuassd.   Tne  higner  tne
     "sctus.!"  cpsratrnc; rats *s«-s, r!ie less T.-rc-errsnt consunes in cc~*r:son to
     :re  aTTc«aaTs- (^uture).  stinting'  «t«.  Since we would  not ae accepting tne
     Riches': sct^l  rat* wit-cj.t question, our Interpretation is  at Teast as  -
     stringsnt. as  p.rior
          (3)   Lisa  cf  Test Dcts.   The State of "ort.n Carolina has  incicated  tnat
     •he  actual  sstsaton ra.ts s-T5ulc be based on, the highest of  the  test  results
     2va:l«3l«.  Rsigan  IV r»s rrjistsa t-'Tct t-s 3€5t  estimate of  ernissiais
     fates  :s  trra avsrass cf all  vsTid test results.   The best ratio.-rs'ia  :-!crtJr
     Carol: ti csuls isv^la? --as :iat t^e nrgr va-u5 -xas  "likely" to  occur (zr to
     nave ccc^rrea)  curing at *6=st sc=-£ penoas cf tirre*
          ~*  *5*r trit ~T c-"..- -it^^i'e for Ma= c*  n:;n  values  wsu*. :  -.5.-* to
     :?  Sdssi 31  2 ?c.-=:^*i  .-.: tr '"* use of a ^.xii^n cperatiny  rata.   nswever,
     tie acr^il *-:ssio.T r»'ti T5t:-3a,te its-si f C3*a tot appear to  ng-/* 0551
     ^ts^laS tr  2s t-2 r:5.-sSt .'sTue- fcu.-c -«r*r  * :t»c:< is tastec,  b-jr to
     consist  cf s. value as c"cs« as possis1* co a-ir-a!  emissions. Trse  cast
     astisits a*  sit^sT wissic."* is', a*" course,  ar ivarags value, sa we cscided
     to  ccnti^a  ts- insist ST -s» 5? tf* avsrag*  j? s = i  valid test ras.lts.  The
                              "*                          on:

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                                     6
     (L)  An emission factor baseo on the average  of  all  valid  test  results.
     (2)  Maximum 24-hour heat input rates for the 24-hour  increment  consumption
calculation,
     (3)  Average 2-year heat input rate (in btu  per  hour)  for  the annual
increment consumption rate.
Attachments
cc:  "S3 Network
     S.
     T. X«?

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                                                         9N

                                                         "3
                                                         Cfl
                                                         D
                   6. PSD


Baseline/Increment Consumption/Impact Analysis

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                  UNITED STATES ENVIRONMENTAL PROTECTION AGENCY



SUBJECT: Applicability of PSD Increments over                   DAT^ 3 MA^l  ^377
         Company Property

        I                          /->      ,1  no
FROM:   /Walter C. Barber, W rectorCA-v^LLkX-
      /iOffice of Air Quality Planning and Standards, MD-10

TO:      Gordon M. Rapier, Director
         Air and Hazardous Materials Division, Region III, 3AKOO

              This is in response to your May 9, 1977, memo asking if PSD increments
         apply over property owned by a new source" if the general  public  is ~g
         effectively precluded from access to that property.  The  answer  is **v.
         This issue has been addressed with respect to the NAAQS in QAQPS Guideline
         1.2 - 046, "Guidelines for Implementation of a Regional New Source
         Review Program for Stationary Sources" (a copy of the pertinent  page  is
         enclosed), and in the attached memorandum of law from OGC.  We believe,
         and OGC concurs, that the PSD increments should be treated the same as--
         the NAAQS in this respect.  Therefore, as indicated in the OGC memo,  the
         test for determining if public access is effectively precluded requires
         some kind of physical barrier.

              If you have any further questions on this matter, please contact
         me.

         Enclosures

         cc:  Richard G. Stoll, Attorney, Office of General Counsel, A-133
              Edward-E. Reich, Director, Stationary Source Enforcement Division,
              ENOW c*—
EPA. *•••• IIJO-4 <«•«. 4.771

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                                                                         5.1

 be  allowed to construct.   Instead,  any source appearing to cause the NAAQS
 to  be  exceeded during  the  screening process should be subjected to a more
 detailed  analysis  which  carefully considers site-specific data.  If a
 detailed  analysis  continues  to  demonstrate that estimated air quality levels
 of  stable pollutants will  exceed the NAAQS, it may be necessary to pursue
 additional  considerations  which are to be described by the special NSR
 guidance  currently being prepared.
     Reactive pollutants (HC-0Y and NO ) are somewhat more difficult to
                              A      «
 deal with at  the present time.  Existing modeling techniques do not appear
 to  adeouately predict  the  reactive  pollutant impact of specific point
 sources.   Since no acceptable modeling is presently possible, the air qual-
 ity portion of the NSR need  not apply if there is no' SIP control strategy
 demonstration for  the  area.  No permit should be issued, however, until
 it  1s  carefully determined that all  applicable emission requirements are
 met (see  page 31}.  In many  cases it will probably be necessary for the
 reviewer  to refer  to the special NSP guidance for non-attainment areas in
 order  to  adequately review major sources of KC-0X and/or NOX.
     Air  quality concentrations should be estimated in accordance with
 the definition of  "ambient air." (40  CFR, §50.1(e)}.  The term "ambient air"
 1s  defined  as  that portion of the atmosphere, extemal'to buildings, to
which  the  general  public has access.  It will be the resconsibility of the
 applicant  seeking  to have  private land excluded from review to provide suf-
 ficient assurance  (e.g., written statement, photographs, etc.} to EPA that
the general public is  completely and effectively prohibited from such land.
     Where  such assurance  is acceptable, air quality standards should be
estimated at  and bevond the  "fence!ine" which divides privately-owned space
from space  considered  to be  public  (accessible to the general public).
                                    38

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                                                                      5.1
                   ENVIRONMENTAL FRSTSCTSON AG'NCY

                     orrics or i'zi! GZ.:I^AI"COV::£II

  A;a.   Septeaber 28,  19J^rT~
iji>   Michael A.  Jar.es,  .Attorney
.<;:ie/.   Air duality and r.zdiarier. Division

.f.>-«-«:   Ariient Air Quality Monitoring by E?A

   TV   Jack R. Farr.sr,  Chief
       Plans Manager.int Branch, SDID


                           .«-;EMORA::DLT:I OF LA:-?

                                 FACTS

            Your Fisr.orar.cun of Septerier 12, 1972  inforr.s us that
       the Standards  Development and Ir.ple~er.ts.ticn Division is
       initiating  an  air  quality sar.plinc procrt~  =.rci^id a asrrer
       of  smelters  for  f.:hich enissicn reculations  •.-.•-re  prcposc-c cy
       EPA on July  27,  1972.  Poter.tiai sites fcr  locatlnr'-sniztr-
       ing equipr.snc  v:ere based on diffusion zaodel prediriicns.
       Some of these  sires are on lar*a owned by the snelters,  e.g.,
       •,*•  V«»».« —*fc ^--__-l- r*^.-_ /-__•>*.__   —».". -^              • *
       ment at each of  the sites would be operated by EPA persc.ir.el.

                              QUEST:o:: si

            What is the meaning of the phrase "to  which the gensral
       public has access"  in ZPA's definition of  "eriier.t air"?
            v?c boliave that  the quoted phrase is ::.ost reissnablv
       ir.r-jrprttes as rsekninr  u,rcper-cy whicn r.er.=ers cf  che  ccr.-
       r.-jr.ity at larre are not physicailv barred in scne wav frcr.
       cnterinn.

                             QUZSTI077 52

            Should a different definition ef "ariier.u air" be r.sda
       Tor  primary versus secsndarv standards since seccndarv s^i.--
       dards involve welfare and not the health of serscns?

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     ZPA's  regulation defining "-rrujicnt air" ir.akes  no such
distinctic- ,  sr.d vs find r.c su^gastior. in the <~-.ct that
Congress  intended such a distinction.
     What  tvre of approval fro- sr.eltsr officials  is  neces
sary in  order to operate sar.pling equipment or.  sr.slter
property?
     Informal,  oral permission is acceptable.

                        DISCUSSION

1.   EPA's  regulations prescribing national prir.ary  and
secondary ar.sient air quality standards dcfir.e  "ariiar.z air"
to nean  "thaz portion of tha a^r.osphere , exterr.=i  to buildir.gs,
to which ths general public his access."  40 C??. _50 ,l(s) .
•«v« ->«. «aMjj^j_4 *•-.  ^ • *% «»•! o'-'  liiwn^c ^Xa c*a«««s T-O c1  ar^«^"'<"a —
bility to the a— osphere outside the fence lir.s, since "=ccess"
is the ability to enter.*  In other v:crds, areas of  privs-e
property to which the ovner cr lessee has not restric-2d
access by physical ~eans such as a fence, wall, or other
barrier  can be trespassed upon by ner-bers of the ccrr-.uni-v
at large.   Such persons, wh'ethsr" they era kr.cvirvr  or i.-_-.r=sr.t
trespassers , will be exposed to and breathe the air  above
the proper-y.

2.   In  our telechcne conversations, you have pointed cut
thit this conclusion cr-ablss the -property cv-ner to deter-.ine
what constitutes "sriient air-' since he nay fence  his property
and tJ'erebv srecl'-ds *^ublir ?""°ss.  This result nay indicate
that a orcrsrty line boundary rather than a fence  line bour.dary
for arjjlsr.t air -&>:es better" sense.  Two factors dictate tr.st
this interpretation not be adopted:  1) the ordinary r.e=.nir.g
cf "access" includes the right or tha ability t= enter (see
     U'ebstsr's Third Kew Intsrr.aticnal Dictionary (1955)
     defines "access" to r.ear. "remission,  liberty,  or
     abilitv to enter".

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                                                               6.1


                           - 3 -
 footnote, abcve) ;  2)  cry definition which lir.its  the  scope
 of applicability of  ar.bic.-it air quality standards r.ust  be
 exarr.ined ir. the" light cf CIO" of t.«s; Clesr. Air Act.   That
 section provides rr.*t "Izcr. St^zo shall l-.;ve the  prir.zry
 responsibility  fcr assunr.g air cr-ili-.y -..'ithin tha ar.r.ire
     r?.r':.ic .rsa  jcrtrc~.irir.r £•.:::: .'t~.t&. . . "  i
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                                                                 6.1
Applicability of PSD Increments Over
Sew Source's Property
Cordon K. Rapier, Director
Air & Hazardous Materials Division, 3AHOO

Walt Barber, Director
Office of Air Quality Planning and Standards, (MD-10)

     In implementing the PSD program we have encountered a number of
questions concerning the applicability of the PSD increments over the
property area owned by the new source. In other words, are those emissions
from the new source which impact within the property boundaries of that
new source subject to the PSD increment constraints if the general
public is effectively precluded froa access to that property?

     If it is agency policy to exempt the requirements of the PSD increments
over the source's property, then what types of restraints (e.g. fences,
no-trespassing signs, etc.) are considered necessary to effectively
prevent public access to that property?

     Ve currently have a number of PSD source applications under review
which will be directly affected by the agency's position on this issue.
Therefore, aa early response from you on this matter will be greatly
appreciated.  If you have any questions on specific PSD projects, please
contact me at 215/597-8131 or Mr. Jla Sydnor of ay staff at 215/597-
8181.

 ec: Edward E. Belch (ES-341) *
     Director, DSSE
                                  /•
                                  i

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           UNITED STATES Ef4V|RONM£NTAL PROTECTION AGEKC
                        APR 2 9 I960
                                                     Office of
                                                     Enforcement
HEKORANDCX
SUBJECT:  PSD Analysis  for  SIP  Relaxation in Metropolitan Boston
          Air Pollution  Control District - Eastman*Gelatin

FRCM:     Director
          Division of Stationary Source  Enforcement

TO:       Linda Murphy,  Chief
          Stationary Source Section -  Region I

     This is in response  to your nemo  of April  2,  1980,  in which
you asked Rich Eiondi whether a SIP relaxation,  allowing Eastman
Gelatin to burn 2.2% sulfur fuel oil,  would  consume PSD  increment.
My understanding* of the  facts in the case is that  the  SIP revisior
would relax only the SC2  standard.  The  TSP  standard which
applies to Eastiran Gelatin  is already  lax enough to allow the
switch to the higher sulfur content fuel.

     According to 552.2Kb) (11),  any SIP relaxation which is
submitted to EPA after  the  applicable  baseline  date consumes
increment.  The SIP relaxation  consumes  increment  for  all pollu-
tants which, as a result  of the relaxation,  increase above
baseline levels.  The tern  "fiaseline levels" is  defined  in
§52.21(b)(11) and generally neans actual emissions.  As  a part of
the SIP revision process, the State must analyze the impact of the
relaxation on the applicable increments. ' If the analysis projects
an increment violation, EPA must disapprove  the  SIP revision.

     In the case at hand, the SIP revision must  include  a projec-
tion of the impact on the applicable S02 and TSP increments,
assuring that the baseline  has  been triggered.   If the SIF relaxa-
tion is to be approved  before promulgation of the  September 5,
1975, PSC proposal, the baseline date  is August  7,  1577.  If the
relaxation is approved  after promulgation cf the final ar.endr.ents,
the definition of "baseline" will have changed  and it  will be
necessary to determine  whether  there have been  any applications
for PSD permits for sources in  the area  where Eastsan  Gelatin is
located.  See definitions of "baseline"  in 40 CFR  52.21(b)(ll)
                                                        OFFICIAL FILE C

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      Region  4  recently  reviewed' a  SIP revision  for Florica Fewer
and  Light  (FP&L)  which  was  similar tc your case involving Eastsan
Gelatin.   Florida proposed  to  relax  its  participate star.dsrds for
FF&L so  as to  allow the burning ct higher  sulfur oil.  The SC:  _
standard did not  need  to be relaxed.   In that case, EFA recuirec
an  increrent analysis  for both TS? and SC2-   The final notice c.
partial  approval/partial disapproval  or.  FP«L is attachec.

      Chouid  you wish to discuss this  issue in r.cre detail, please
contact  Rich Biondi at  755-2564.
                                 Edward E.  Reich
"cc:   Lydia  Wegroan,  OGC
      Jin  Weigold,  OAQPS

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                                                                                   6.2.
                                                                                 ±
                     UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
    ATS    A'pril 2, 1980
SUBJECT    Question - Does a SIP Relaxation for SO2 Consume Increment?

   "OM    Linda Murphy '^^  .
           Stationary Source 'Section
     T0    Richard Biondi, DSSE
           A question regarding increment consumption has arisen which I am referring to
           you for clarification.
           On August 22, 1977 the Metropolitan Boston Air Pollution Control District
           was approved by EPA to bum 2.2% sulfur fuel oil.  At this time the MBAPCD
           was classified non-attainment for TSP.  Eastman Gelatin, Peabody, Mass, was
           disapproved to burn the higher sulfur fuel for TSP concerns and is presently  burning
           1% sulfur fuel.    Subsequently, the MBAPCD was reclassified to attainment
           for TSP.
           I am requesting a determination on whether or not a SIP relaxation for SO2 for
           allowing Eastman Gelatin to burn 2.2% sulfur fuel oil would consume increment
           according to the definition of "baseline concentration" In Section 52.21 (#(11).
           I would appreciate a response within two weeks of  receipt of this memo. A tele-
           phone call to Margaret McDonough (FTS 223-4448) of my staff would be sufficient.
EPA Pw» 1320-4 (R*«. 1.76)

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                                   oi. 45. No. 42  /  Fndav. Februar/ 29.  1980 / Rules and  Sssulations
                                                                       13455
'31 CFS'Part 1

  'seiosure of Records; Exempt  '
   stem        '   	-  ••

 AGENCY: Internal Revenue Sen-ice.
 Department of :ne Treasury.
 ACTION: Final rule.    - "   '" .-:'—•'••  .

 SUMMARY: Tne Internal Revenue Service
 system of records entitled "File of
 Persons Making Threats of Force or  i*  /
 Forcible Assaults" (26.005) is deleted
 frocv the exempt system listing in 31   • •
 CFF. 1.36. This system has been  ;-.,   .'  *
 eliminated since it is being incorporated
 into an existing automated system for
 increased efficiency. (See 44 FR 52913.
September 11.1979.)  '•"'•;• "-=••••••   -~
EFFECTIVE OATS February 29. I960.
FOR FURTHER INFORMATION CONTACT:
Mr. William E. Mulroy. Director. Internal
Security Division, Office of Assistant^ jj  •
Commissioner (Inspection). Internal =ii.-".
Revenue Service. Washington. DC 20224*
(202) 566-1564.  "'.TTtwsi V j?I-s'v "4**^"-?
SUPPLCMEHTARY INFORMATION: The** ' f'-';
canuneat period expired on October U.. *
1979. No comments were received. In  "2
addition, approval has been obtained "' .
from the Office of Management and "—.>:
Budget. Accordingly, the rule is effective
February29.1980:    -  .-L"."-•.:._  ";.
  Oated: February 20.1980. ."• i -T !s;'~«/'O __
                                        25.1979 until July 23,1981. whigb had <•>' may be applied by the State to all >  tits:
                                        been adopted by the Environmental   '•;*•'.- (i) b.3 Ibs per MM BTU. or (2) 02 Ilia, per
                                        Regulation Commission. This variance
                                        allows .the Flonda Power and Light
                                        Company (FP&L) to continue cenain
                                        operations during the current low-sulfur
                                        'oil '*""*-fp-*"i-i r?*"""'k*'
                                                                  nutt« "Pnoosal notice and is approving the - j „
obtain a suffiaent supply of low-sulfur  ^-_revisioo exapH'orjhe following areas:  '.;
fuel oU due in part to the* decreased  ••'" ' '•' The TSP lisuts for the Turkey Point and  •'.:''•
availability of crude and the  " •• -TT". .7* Pan Everglade* plant* would allow FP&L to  '"
disappearance of "spot market'' low- ~'-'- "• burn ht^ier *ulhir hieL thereby  violating the
        -                     ^—      "-sulfur dioxide CU*» I increnents in the  '  *~~
  aritia: Variance for Partlcuiates. SO*
  siaie Emissions anc- Excess
  -:ii:ons lor FlcriCa Power & Licnt
   ncratmg Plants
                     •               •
   CNCV: cr.viror.mer.ul Protection
   mcy.             -•    '  „.• ^'
   •IOK: Final rule.        .'•-•*••  •••-
        T: On August 31. 1979. the State
    •r.sa suammed to EPA. as a SIP
     ;r.. a temporary variance from Julv
 sulfur oil supplies. Consequently.TP&L
• petitioned and received emergency.relief
 under Section llO(f) of the Qean Air Act
 (CAA). The relief granted under Section  '
 110(f) is limited in time and therefore the
 need for a longer period of relief has   •
 arisen. On August 28.1979. the Flonda
 Department of Environmental   -' "
 Regulation issued a variance which -:'.
 relaxes the current oaniculai-Jimits of
 0.1 Ibs per MM d ru anc ^i^ opacity.
 Under the variance Cape Canaveral i &
 2. For; Myers 1 & 2. Manatee 1 & 1  and
 Sanford 3.4. and 5 may emit 0.3 Ibs. per
 MM BTU. and Port Eversiades L 2.3.
 and 4. Riviera 3 & 4. and Turkey Point \
 & 2 may emit 0.4 Ibs. per MM BTU. fS*
 Opaaty limits for all units are relaxed to
 405. Additionally, the variance
 stipulates that if fuel oil with asphaltene*.
 content of less than or equal to 9% by
 weight is burned, the following limits  '
                                                                               Everglades National Park. fThe alternate [~ '*
                                                                               Qasi I PSD tnerenents for suUur dioxide n ~.J
                                                                               were used in the control strategy to     « ' \.
                                                                               •ecoauaodaie emuiions from the Turkey Ij " -'
                                                                               Point and Port Everglades plants.)    ._•;-._"

                                                                               '  EPA received comments from four  "~ -
                                                                               commenten on the proposal notice.  ••-•
                                                                               Taree of the commenien supported   *.l
                                                                               EPA's position to disapprove the   "."y,
                                                                               vananceJta it applied to the Turkey   '; ~
                                                                               Point and Port Everglades plants. The
                                                                               fourth coruiemer fa law  first stb^.-.'.ur.;
                                                                               comments in behalf of the:: client FPiLj
                                                                               urged EPA to reconsider its proposed  .
                                                                               action and approve the SIP revision as
                                                                               submitted. The cammenis of that fira.
                                                                               are stated as those of FP&L and are as
                                                                               follows:     " .  "'."  '       •
                                                                                 FP&L stated that low sulfur oil has
                                                                               became more scarce and there is little
                                                                               prosoeci of sufficient Ions-tern suoaiy
                                                                               oeconung avaiiaoie. Next. FF&L coes

-------
13433       Feaerai Register / Voi. 45. No.  42 / Friday. Fssruary 19. 1950 /  Rules and Regulator.;
not contest modelling results showing '•-
thai the variance would allow the Class
I PSD increments for sulfur dioxide to be
exceeded m the Everglades National   •-
Park area. However. FP&L contends that
under Section IGS(d) of the Clean Air  -
Act and 40 CFR 52Jl(q). EPA may (and
should] grant the alternative QMS I .'• "
increments if the Federal Land Manager
certifies essentially that air quality  • '.
related values in the Everglades would
not be affected. FP&L asserts thai  - «'
Section 16S(d) potentially applies   ' * ••>
because a fuel switch (to a higher sulfur
content oil) is a "modification" even  •- -•
though it is exempt from being a "major
modification" under EPA regulations. .•-
FP&L argues that since Alabama Power
v. Costle.	F. 2d	. (O.C. Or. No.
7&-1006. dec December 14.1979) held ' •
that the PSD baseline should be set from
the gate of the first PSD permit • ICJT**I?
application in the area. EPA should wait
until Florida establishes the areas for '-.
                                       Alabama Power. EPA should wait until
                                       Florida establishes the "area" for setting
                                       baselines, since the two FP&L plants are
                                       not within the "area of significant   .'. :
                                       impact" of a nearby source which has •••
                                       already filed for (and received) its PSD
                                       permit. The Alabama Power case did   .
                                       ' not mention this "area of significant ..:>
                                       impact" test for setting the baseline,  .»j
                                       Since such a test is not mandated by .-.j
                                       that case and is not in present EPA  • -ij -
                                       regulations or guidance, this argument is
                                       rejected.  ~f.^ .*'- •<•-..•-.•»>• asr.^-.v.-*.
                                       .•. The final assertion of this comnienter ^
                                       is that EPA should obtain more sulfur V
                                                                               "Part 52 of Chapter!
                                                                              Federal Regulations, is amended as "^ ^.':
                                                                              follows:   • • ;'• -'•"""—''"' •'-^;--i ;-'"^*-A'.

                                                                              Subpart K—Florida "f'.V.jCr.V"4''!''?^!.'!1? ~
                                                                               ..1. In § 51510. paragraph (cj is   ?.-.<;-•*-. •;
                                                                              amended by adding subparagraph (19)  •  •'
                                                                              as follows: ;:_.aa.=s:2-;«T;."3.tj.-::_'f'*:3-.'--.7

                                                                              }S3JS33  Identification ol plan. ','-'t^.:J^7

                                                                             :   (c) The plan revisions listed below' j|:'--'*
                                                                             ..were submitted on the dates specified. ^.:'

                                                                              i (19)"August 31.'i979, submitul of'. V .''^
                                                                              variance granted to FP&L f
                                                                              emissions of particulates." i
                                                                             , and visible emissions. This '
                                        dioxide ambient air monitoring data for ^
                                        this area before deciding whether to - •- •
                                 r '-.i- disapprove the variance for'the two '?-:^?**™">" ?"?*?l°?-'~ vaT!
setting baselines. 'i-r'is.-r.-K^esop.-r. named FP&L plants. This is because "of'" >*9 eflectfiromJuly 25.1979. to Jul
.' This is because FP&l'contends that * 7.  .imperfect predictive modelling and  '. ;>\**19"l™_.    y"*066 ™f T"*-, -  -^_.
the Port Everglades and Turkey Point --i   imperfect correlation of sulfur dioxide ' *  and PortEvergiades are disapproved    ,,.
plants are not within the "area of   • -V.s  ' and particulate emissions from use of a   "wnUe renaming portions areapprov«:.? ^.
significant impact" from a nearby source   higher sulfur content  fuel Since FP&L •— I™ "•* •••««•* *^»«*« "«L,' '     "  "•
for which a PSD application has   ".'• •!. "  has no objection to the quality of  •. ~- r •
previously been filed. Finally. FP&L"''r*f-j   predictive modelling  for those plants  !  >'
asserts that predictive modelling is : -"   where the results an favorable to FP&L
imperfect and there is not a perfect -"v-^ EPA sees no reason for FP&L.'s concern o
correlation between increased sulfur;-*^.  on the same modelling-which produced.
dioxide emissions and increased :=>-*•- " 'unfavorable results (Port Everglades an'd
particulate emissions from use of a".--"" ". Turkey Point). Second, if there were an
higher sulfur content oiL Therefore.' -";?"•:.-" insufficient correlation (in FP&L's view)
FP&L urges EPA to require additional*'"-*  -. between sulfur dioxide and particulate n ' •Archaeological Resources —'
monitoring of ambient air sulfur dioxide^ •• emissions from higher sulfur oil* there ' '-^- &y_. -^.-,-.-—..-.- r  .       "*"*'

                                                                               DEPAR17JIENT OF THE INTERIOR
                                                                               Office of the Secretary ••rr^ii'-'rh:^
supply of such oil for the Port  •* U':'--F"' £ [SIP revision does not involve the .-.-{•.•It'J • :correg.page attmoer. ff-^rjgr^ta^lf
Everglades and Turkey Point plants and ""permitting of a major new-source orT:..TT!'''«iuji«6 COOI'UIMI-M '^-~~^-£r*i&£rii~!£s
all other plants in its system if the   ' ".  'major modification, the alternative  -:~;- ' -^^^^-^^-^^^^^^ "' "—""•"
vanance is disapproved for only the two   Class I increments cannot be used.  .,^.w..r' .    ••  .-  •      _•••--.-:•-!
named nlanta. Second, it n EPA's_     ',   Therefore the air quality impact of the  ..  'FEDERAL EMERGENCY ^=s
position th
proposed motor emitting lacuiTTrSee
both the Port Everglades and Turkey
Point plant are already in existence and
the only change contemplated is a
switch in the sulfur content of fuel used.
they are not "proposed" facilities. '
Additionally, the fuel switch is neither a
"modification" nor a "major    '" "
modification". This is because the only
arguable manner in which it could   "'
qualify as a "modification" is as a
"change in the method of operation".
See C«an Air Act Sec. :il(al(-»!.
However, since FPSL has asserted that
pr.or to :srz. both plants were capaoie
 SIP revision must not violate the
 standard Class 1 increments. Since the -
 limits on allowable sulfur dioxide
 emissions for the Turkey Point and Port •
^Everglades plants would not be  violated
 even by the higher sulfur oil projected in
 the vanance, it is evident that the
 current SO, emission limits applicable to
 these plants are not adeouate to protect
 the Cass I increments. Therefore, the  -.
 Slate rausl initiate action to revise the
 SOi emission limits for these two plants
 to protect the Class I increments and  .
 submit the new limits as a SIP revisions.
   EPA  is aoprovmg the Florida revision
 exccst  for the portions affected  by the "^
 deficiencies lust described: the latter
 portions are disapproved.        ;.   i
                                                                              •MANAGEMENT AGENCY  .. i :i -^ , j
                                                                                    S". -..••»»• i -^, .';..;•...;?..  »r
                                                                               Federal Insurance Administration "--^-i
                                                                               44 CFR Part 55     /
                                                                               -                 ""'**•
                                                                               Statewide "FAIR Plans" '
                                                                                                    "
                                                                                                                 C*-.:r;
                                                                                                                 •'•*-""-
                                                                                                        ^

                                                                                                        "
                                                                               AGENCY: Federal Insurance
                                                                               Administration. Federal Emergency
                                                                               Management Agency (FEMAJ.
                                                                                      _.  .   ,     . - '
                                                                               ACTION; Final ruie.          •
                                                                                                            _
                                                                                                           i. a i3/ii*
                                                                               SUMMARY: The purpose of this   " .. *^.-| '
                                                                               amendment is to revise the Regulatiorj  ."
                                                                               concerning operation ::' Statewide F>J?
                                                                               Plans under the Urban Prooerty     . -:ji~
                                                                               Pratecnon and Reinsurance Ac: of 1968.-
                                                                               On Novemoer 6. 1973. me Feaerai

-------
                                                                  6.7

         UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                       WASHINGTON  DC  20460


                              t.',AR  5  1S50
                                                    Office  of
                                                   Enforcement
Mr. Robert L. Davies
Assistant Administrator
Office of Fuels Conversion
Economic Regulatory Administration
Department of Energy
Washington, D.C.   20461
Dear Mr. Davies:
     Jeffrey Miller has asked  that I respond  to your  letter  of
December 10, 1979, in which you requested  an  advisory opinion
regarding  the applicability of the Prevention of  Significant
Deterioration (PSD) regulations to the Baltimore  Gas  and  Electric
Company's  (BG&E) Brandon Shores Station.   In  this letter  I will
discuss the general applicability of the existing PSD regulations,
promulgated June 19, 1978  (40 CFR 52.21  (1978)),  and  the  amend-
ments proposed September 5, 1979  (44 Federal  Register 51924).   In
addition,  I will address the three specific questions raised in
your December 10 letter.

Background - On May 16, 1973,  the Maryland Public Service
Commission  (PSC) issued BG&E a Certificate of Public  Convenience
and Necessity to construct two 600 MW generating  units  at Brandon
Shores in  Ann Arundel County, Maryland.  Construction on  the units
commenced  prior to issuance of the' original PSD regulations
(December  5, 1974).  Although BG&E had originally planned to fire
oil in the  two units, DOE  is contemplating issuance of  a
Prohibition Order which would  require BG&E to burn coal.   The  two
Brandon Shores Units were  originally scheduled to begin operation
in 1977 and 1978 but a change  in  load requirements has  now caused
BG&E to delay that schedule.   Startup is currently projected for
1984 and 1988.

General Applicability of PSD

     Because construction  coranenced prior  to  issuance of  the
December 5, 1974 PSD regulations, both units  were "grandfathered"
from PSD preconstruction review.   In order to maintain  this
grandfather status, construction  of both units must proceed  in a
continuous  fashion, and construction must  be  completed  within a

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                               2.
reasonable  time.   "Continuous  construction" has been determined by
EPA  to mean  a  construction  operation  in which no breaks of greater
than  18 months occur.   At  this point,  Mr.  Bernard Turlinski, the
Regional  Energy Coordinator for EPA  Region 3, has determined that
construction at Brandon Shores has proceeded continuously.
However,  with  BG&E's delayed startup  date,  I am concerned that
construction may not proceed continuously  for the next 4 to 8
years, and  that .construction may not  be completed within a
reasonable  time.   I would  like to make it  clear that failure of
BG&E  to complete  a continuous  program  of construction within a
reasonable  time may subject the Brandon Shores Units to PSD
review.

      In your memo you  raised three specific questions which I will
address below.   As requested,  I have  evaluated each  question under
the June  19, 1978 regulations  which  are in effect at this time,
•and under the  September 5,  1979 proposal which will  be finalized-
in the near  future.

      (1)  Q. - Has the PSD  baseline been "triggered" in the air-
shed  in which  the Brandon  Shores Generating Station  is situated?

          A.   Under the existing PSD  regulations, August 7, 1977
is the uniform baseline date for all  PSD areas.  Therefore, the
baseline  has been triggered for. the Baltimore area and the Brandon
Shores Generating Station's increase  in allowable emissions is
counted in  the area's  increment consumption.

      Under  the proposed regulations,  the baseline is established
in a  clean  air area designated under  CAA Section 107(a)(l)(d) or
(e) as of the  date, after  August 7, 1977,  that the first permit
application  by a proposed major source or  modification (as defined
in the proposed regulations) is filed.  In the PSD area in which
Brandon Shores is situated,  a  permit  application for a major
source has  been filed.  Therefore,1* the baseline has  been triggered
and the Brandon Shores Generating Station's emissions increase
will  be counted as increment consumption.

      (2)  Q. - To what extent  do the  S02 emissions resulting
from  burning coal at Brandon Shores Units  1 and 2 count towards
consumption  of the applicable  PSD increments?

          A. - Hy response  to  this question ^.assumes  that BG&E's
grandfather  status is  not  invalidated  by a /failure to complete a
continuous  construction program within a reasonable  time-frame.

      Under  both the existing regulations (June 19, 1978) and the
proposed  regulations  (September 5, 1979),  the fuel switch will
consume the  amount of  increment modelled as the difference between
the maximum  air quality impact allowed under the SIP on the

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                               3.
                                                                  5.7
 baseline date and the maximum air quality impact allowed under the
 SI? at the time the units begin operation.  The rule for determin-
 ing the amount of increment consumed by a source is outlined on
 page 26400 of the June 19, 1978, Federal Register.  This rule was
 r.cz amended in the September 5, 1979 proposal.

      We have determined that BG&E's State permit allowed Brandon
 Shores to burn coal on the baseline date under both the new and
 the proposed regulations.  This determination is based on/' 1) a
 literal reading of the State permit which does not expressly limit
 fuel use, even though BG&E's permit application indicated the
 intent to burr, only oil,  and 2) the absence of any claim by the
 Maryland Public Service Commission that the permit intended to
 limit Brandon Shores to oil usage by specifying an exit gas
 temperature.  Brandon Shores' allowable emissions limit as of the
 baseline date should be calculated based on the burning of coal,
 in  compliance with the applicable NSPS, with a 700 foot high stack"
 and an exit gas temperature of 600°F.  The stack height and exit
 gas temperature are requirements under the State permit.

      It is my understanding that BG&E plans to obtain an amended
 State-permit which will allow them to emit gases at a temperature
 somewhat lower than 600°F.  Such a change will lower the effective
 stack height and will increase .the air quality impact, as well as
 alter its point of maximum concentration.  That change in air
 quality impact, the difference .between burning coal with a 600°F
 exit temperature, and burning .coal with a lower exit temperature
 will consume the PSD increment.

      (3)  Q. - Since it does not appear that EPA has the responsi-
 bility, in this instance, to conduct a preconstruction review,
 what is the regulatory framework (Federal and/or State) for
•assessing the extent of PSD increment consumption?

           A. - The answer to this question is the same, regardless
 of  whether we are operating under the existing or the proposed PSD
 regulations.

      The extent of Brandon Shores' increment impact will be
 assessed by the next PSD applicant in the area unless the permit-
 ting authority (currently EPA) conducts a periodic increment
 assessment first.  As part of its permit application, each PSD
 source must demonstrate that it will not cause or contribute to
 any increment violations.  In order to do so, it must determine 1)
 whether the baseline has been triggered, 2) how much increment was
 consumed by major source growth before the baseline date, and 3]
 how much increment has been consumed by major, minor, and area
 source growth since the baseline date.

-------
N5?S

      Based  on  the  assumption  that  construction  will  be  completed
within  a  reasonable  tine,  the  Brandon  Shores  Units are  subject
under Subpart  D of 40  CFR,  Part  60.  However,'if  BG&E fails  to
complete  construction  within a reasonable  time, the  units may
become  subject to  the  new  Subpart  Da  (Standards of Performance for
Electric  Utility Steam Generating  Units).   As in  PSD, a  NSPS
source  can  maintain  its  "commenced construction date" only  if
construction is completed  within a reasonable time.

      In your letter  you  mentioned  that BG&E plans  to burn 1%
sulfur  coal at Brandon Shores.   If BG&E burns 1%  coal without
using any emissions  control equipment,  it  is  certain that they
will  not  meet  the  NSPS SO?  standard of 1.2  Ibs./mm Btu.   (See 40
CFR Part  60, Subpart D (1978).)  In fact,  unless  BG&E can obtain
coal  with a sulfur content  of  .7%  or less,  they will probably need"
emission  controls  to meet  Subpart  D.

      If you would  like to  discuss  this further, feel free to  call
me at 755-2977.

                               Sincerely yours,
                                       0. Wilson
                            Deputy Assistant  Administrator
                              for General Enforcement
cc:  Bernie Turlinski, Region  III
     Steve Fergusen, DOE
     Randy Roig,  Hd. DEP

-------
                                                                  6.7
Department of Energy
Washing. D.C. 20,6,                       DEC 1 0 1979



 Mr. Jeffrey Miller
 Acting Assistant Administrator
    for Enforcement
 U.S. Environmental  Protection Agency
 Hail Stop EH 329
 Room 1100
 West Tower
 Waterside Hall
 401 M Street, S.W.
 Washington!  D.C.  20460

 Dear Mr. Miller,

.Pursuant to Section 301 (b)  of  the Powerplant  and  Industrial
 Fuel Ose Act of 1978 (FDA),  the Department of  Energy's  Economic
 Regulatory Administration (ERA) issued a proposed  Prohibition
 Order on October 9, 1979, to prohibit Baltimore  Gas and Electric
 Company's (B3&C) Brandon Shores Units 1 and 2  from burning
 petroleum or natural gas as  their primary energy source.  The
 issuance of the proposed Prohibition Order was based on the
 finding by ERA that these two  units have or previously  had
 the technical capability to  use an alternate fuel  (coal)  as
 a primary energy source.  ERA  had previously determined that
 the two units are existing pursuant to ERA'S Revised Interim
 Rule to Permit Classification  of Certain powerplants and
 Installations as Existing Facilities.

 Before issuing a final Prohibition Order, ERA must make the
 findings (1) that these units  have the technical capability
 to use coal or another alternate fuel as a primary energy
 source, or they could have such capability without (a)  sub-
 stantial physical modification of the units, (b) substantial
 reduction in the rated capacity of the units;  and (2) that  it
 is financially feasible for  BG&E to use coal or  another alternate
 fuel as a primary energy source in these units.   In addition,
 to fulfill its requirements under the National Environmental
 Policy Act, ERA will be preparing an Environmental Impact State-
 ment  (EIS) to analyze the environmental consequences of finalizing
 the Prohibition Order as well  as identify mitigative measures.

 An  important factor in ERA'S analyses is the applicability  of
 Prevention of Significant Deterioration  (PSD)  regulations to
 BGiE's Brandon Shores Units 1  and 2. The situation is clouded  by
 the uncertainty as to whether  the proposed rules to amend tr.e  PSD
 regulations  (44 F.R. 51924)  apply in this particular case.

-------
                            -  2  -
By this  letter,  ERA  is  seeking  an  advisory opinion  froir EPA
on the following questions:

      (1)   Has  the  PSD baseline  been  "triggered"  in  the  airshed
           in which the  Brandon  Shores  Generating Station is situated'
          To what  extentrdo-j'tne  S02  emissions  resulting
          from  burning (IJ^ercent sulfur  coal  at  Brandon
          Shores Units  land  2 count  towards consumption  of
          the applicable PSD  increments?

      (3)  Since it does not appear that EPA has  the  respons'i-.
          bility,  in  this  instance,  to conduct  a preconstruction
          review,  what  is  the regulatory framework  (Federal and/or
          State) for  assessing the extent  of PSD increment  con-
          sumption?

Your  responses  to  each of  these  questions  should be  in two  parts:
(1) assuming the existing  PSD regulations  apply, and  (2)  assuming
the September 5, 1979 proposed rules  apply.

The following is a summary of pertinent background  information
for your review and analysis.

On May 16, 1973 the Maryland Public Service Commission  (PSC)
issued to BG&E  a Certificate of  Public Convenience  and
Necessity to construct a fossil-fueled steam-electric generating
station, consisting of two 600 MW  (nominal) units,  at Brandon
Shores near Hawkins Point  in Anne Arundel  County,  Maryland.
In its application to the  PS6, BG&E stated that  "...the plant
will  consist of two oil-fired boilers which will supply steam
to two turbine  driven electric generators."

The following passage also appears in BG&E's application: "The
plant will burn residual oil having a sulfur content which
will  comply with the  regulations of the State Department  of
Health and Mental  Hygiene.  The plant will be designed, and
provisions will be made in the arrangement of  the  ecuipment,
so that adequate facilities for burning coal in  the  boilers
could be provided  in  the future.  It 'is not planned  to  install
any facilities  for handling, storing, or burning coal at  this
time."

Clearing at the site  began in June of 1973.  Excavation for
Units 1 and 2 commenced in October and November  of  1973,
respectively.   Work on the foundations began in  February  and
April of 1974 for  the two  units.  Boilers  for Units  1 and 2

-------
                                                              o./
                            - 3 -

 were  delivered  on-site in December, 1974 end February, 1975
 respectively.   The  units were originally scheduled to be in
 service  in. 1977 and 1978.  The latest indications are that
 the  two  units will  begin operation, on coal, in 1984 and 1988,
 respectively.

 The  pollutant at issue is sulfur dioxide (£02).  when the
 powerplants were originally certified by the Maryland PSC,
 New  Source  Performance Standards (NSPS)  for oil-fired units
 restricted  SO2  emissions to 0.8 pounds per million ETU heat
 input.   At  that time,  tfie State of Maryland limited the
 sulfur concent  of fuel oil for powerplants in the Baltimore
 Metropolitan Area to 0.5 percent by weight.  The current • -•
 sulfur-in-fuel  limit for both oil and coal-fired powerplants
 in the Baltimore area  is 1.0 percent by weight.  On and after
 July  1,  1980, the sulfur content of residual fuel oil will be
 limited  to  0.5  percent by weight.

 The  Brandon Shores  units have been classified as existing
 under FDA.   Subsequently they were issued a proposed prohibition
 order which if  finalized would prohibit the burning of oil and
 gas  as a primary source of energy. For that reason, they are
 not  subject to  a preconstruction review under PSD/5ACT provision:
 of the Clean Air Act,  since use of an alternate fuel resulting
 from  a Prohibition  Order under FUA is not considered to be a
 •major modification" (40 C.F.R. 51.24 (b) (2) (iii) (a)}.  Mr.
 Bernard  Turlinski,  Regional Energy Coordinator for EFA Region
•III,  has indicated  that there has been a state of continuous
 construction at the Brandon Shores site. Thus the most recent
 NSPS, which mandates the installation of Best Available Control
 Technology  (BACT) to limit Sulfur dioxide emissions from fossil-
 fuel  steam  electric generating stations (40 C.F.R. 52.21 (b)
 (17)), does not apply.

 What  is  not clear is whether the SO2 emissions when the two
 units are burning coal are to be included in the baseline,
 as defined  in the PSD  regulations, or count against the
 consumption of  PSD  increments.  BG&E contends that because
 a proposed  Prohibition Order has been issued, the emissions
 when  burning rn»]  *r*  aii*-«ma»i^ai iy -included in tfte baseline.
 Members  of  your staff  have indicated to us that the "allowable"
 emissions at the time  the baseline has been "triggered" are
 included in the baseline and any emissions above and bevond
 this  count  towards  increment consumption.  Your staff also
 indicated that  EPA  would not be directly involved in any other
 form  of  review  of the  facility, since the switch to coal can
 be accomplished under  the existing State Implementation Plan.

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                           - 4 -

Preliminary results from an air dispersion modeling analysis
conducted by the Maryland Power Plant Siting Program indicate
that the fntire' three-hour S02 PSD increment may be consumed
if the emissions from Brandon Shores Units 1 and 2, when ourning
1 percent sulfur coal, are not included in the baseline.  The
situation would be exacerbated if additional powerplants at
other BG&E electric generating stations in the Baltimore area
are required to convert to coal as a result of Prohibition
Orders previously issued under the Energy Supply and Environmental
Coordination Act (ESECA). Two such powerplants, Units 1 and 2
of the Wagner Generating Station, are located less than one
mile from the Brandon Shores Generating Station. Thus the issue
of whether the emissions when Brandon Shores operates on coal
are part of the baseline or consume increment is relevant to
the question of whether flue gas desulfurization (FGD) may be
necessary to preserve the S02 increment if Brandon Shores Units
1 and 2 are required to convert to coal as a result of a perfected
FOA Prohibition Order.

DOE/ERA requests that EPA issue an advisory.'Opinion on the
foregoing inquiries. Your prompt attention" and-'*response is
requested in order that we may proceed on the correct course
with our regulatory analysis and EIS preparation.   , . ^
                              Sincerely,      .'X?
  :: IH\ Pr<
                                     L.  Davies
                              Assistant.Administrator
                              Office  of  Fuels Conversion
                              Economic Regulatory Administration
cc: \Jf. Prothro - EPA, Enforcement
     B. Turlinski - EPA,  Region III
     R. Roig - Maryland Department of Natural Resources

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                       '••v-u -J i  ' > i .  y, v* U i . wjr .  . •„ . 1 1 i 1 1 1| u 1 1«  .'.MiiwUlx.
                      Research Triangle Park, North' Caro1 ina   27/11

   OATS   ;.!AR  •  J  •':-•:        ^                                                   6 3
S-JOJECT  Q'jpsticn from Otto  Pearson  (South Carolina
        State Agency)
    TO
Bill Beal ^
Plans Analysis Section

Files

     On February 29, Otto Pearson called Tom Helms to ask a question
dealing with PSO baseline:

     If a source burning 2.1 percent  sulfur fuel  in 1977 now switches to
3.5 percent sulfur fuel (the legal emission rate  under the SIP), will
the increase in SO, emissions consume increment to be included in the
baseline?  The source was constructed prior to  1975.

     Warren Petars and I called him on March 6.   Warren told him that
the increase would consume increment  under  the  existing regulations.
(See 43 FR 26400 Par. 6.)

     Under the proposed regulations (September  5, 1979), Warren told
Mr. Pearson that there would be no_ increment consumption if the change
was made before the baseline date had been  established.  If the fuel
switch occurred after the baseline date, however, there would be
increment consumption.  (See 44 FR 51942.)

     I also told Mr. Pearson that this was  a preliminary Headquarters
opinion based on general information  Mr. Pearson  supplied.  Any
specific situation should be referred to the Region IV office before we
would maka any final -decision.
   "arm 1J20.4 IRtv. 3-?*)

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                                                                       5.3
6.9    DATE:        April  11. 1980
       SUBJECT:     Exemptions from PSD Permit Requirements for Coal
                    Conversions Resulting from DOE  Prohibition Orders
       FROM:        Edwar? E< Rei'cni  Director
                    Division of Stationary Source Enforcement
       TO:           Howard R. Heim, Chief
                    Air Programs Branch, Region III
       DISCUSSION:  See PSD 104
       CR:           4.12 [Hard Copy]; 13.3

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                                                                       6.10
6.10
DATE:
SUBJECT':
FROM:

TO:
DISCUSSION:
                       2)
                       3)
       CR:
February 9, 1981
Petitions for Review of PSD Regulations
Michael  Trutna, Chief
New Source Review Section
All Regional  New Source Review Contacts
Petitions for review of PSD regulations.
- Utility Air Regulatory Group Petition
   1)  Consideration is given to the increase  in
       actual emissions resulting from a  fuel
       switch and the resulting impact on increment
       consumption.
       The term "demolition" as applied to reduction
       in capacity utilization and the corresponding
       effect on increment consumption.
       The definition of major modification
       excludes any  voluntary fuel  switch at a
       source deemed "capable of accommodating"
       and compliance with certain other  conditions.
   4)  Definition of term "significant" as
       applied to de minimus emission levels
       both for pollutants listed and those not listed.
   5)  A "minor" addition to a "minor" source
       would contribute to the baseline
       concentration if it occurred before the
       applicable baseline date; however, it
       would not trigger PSD review.
   6)  Section 52.21HH7) exempts any major
       modification, which meets certain
       conditions, from the air quality assessments
       relating to Class II areas.  A source may
       claim more than one such exemption.

- America Petroleum Institute (API) Petition.
  See (2) and (4) above.

- American Mining Congress (AMC) Petition
   1)  The treatment of fugitive emissions, with
       regard to a source's designation as
       "major" for PSD purposes, is further clarified.
4.14 [Hard Copy]; 13.4

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                                                                      6.11
6.11
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
       CR:
July 31, 1981
Summary of PSD Policy Determinations
Thomas U. Devine
Air and Hazardous Materials Division, Region IV
All State/Local Directors
Region IV
Summary of PSD policy determinations during the period
from February 5, 1981 to July 15, 1981:
   1)  Is a source reactivation subject to PSD (see PSD/117).
   2)  The complete list of organic compounds not
       considered photochemically reactive and, therefore,
       not a VOC for purposes of PSD is detailed.
   3)  Construction of a major source in a nonattainment
       area projected to be attainment (based on the
       approved Part D SIP) before startup, is not
       subject to PSD or Part D requirements.
   4)  Determination of modeling baseline air quality
       levels for 3-hour and 24-hour averages is discussed.
   5)  If an ambient monitor has been shut down, data
       obtained may still be deemed pertinent and useful
       under certain conditions.
   6)  A minor source which locates within a PSD area
       and impacts a nearby PSD area may trigger baseline
       and consume increment within each of the areas
       under certain conditions.
   7)  A minor source which adds a major emission point
       could not escape PSD by considering previous
       decreases which cause the net increase to be
       less than the major source threshold.
   8)  An existing source may change its designation
       from major to minor by accepting a Federally
       enforceable limitation.
   9)  The 50 tons per year exemption under 40 CFR
       52.21(1)(7) cannot be claimed for an emission
       increase of any pollutant unless the increase of
       each pollutant~is less than 50 tons per year.
   10)  TnT"air quality de minimus level for MOe  is
       14  g/m3 annual average, as stated  in the
       published version of the regulation.
2.18 [Hard Copy]; 3.19; 4.19; 5.10; 7.5; 10.23

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                                                                        6.12
                                     1  1182
KS. s. Kay
Shell Oil Coipany
QM Shall Plaza
P.O. BMC 240
Houston. Tens  77001

tear Us. nrtlllps:

     la regard to your letter .of March 24,  1982*  I  hare reviewed the stack
"bright regulations and aceaopaioring preaanle language aad I have consulted
with oar Offles of General Counsel.  ye concluded that the flares,
of the type you describe, are jut to be considered  stacks under the
regulations.  The word •Intermittent* 1n the preamble of the regulations
refers to the Intermittent release nature of flares due to process rate
fluctatlons and sot whether the flare nay  be on  line lateral ttaotly or
constantly.' Be agree that flares are designed primarily for the safe
release of potential beat 1n the exit gases and are not conduits for a
cofltrastloa process such as a boiler.  Therefor*,  any agftlent air quality
aodellng of criteria pollutants cowing froa a flare would be nodeled at
the actual release height.
     X hope this letter clarifies oar position with regard to flares and
the definition of a stack.  1 hare notified,  by  copy of  this letter, our
legions! Offices of ttois policy.

                                 Sincerely yours.
                                 Darryl B. Tyler
                                 Acting Director
                     Control Program Oevelopaent 01rls1<

cc:  CWef, A1r Branch, Regions I-Z (w/lncoerfog)
bee:  T. Helms (w/1ncoBing)
      i •
CPOO^ZB:PDS:BFolkoKsky:lo:I5540:rn510NauOurnan:(HD-15):V1/82

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                                                                    6.13
6.13   DATE:        May 5, 1982
       SUBJECT:     A.I. DuPont Institute PSD Permit
       FROM:        Edward E. Reich, Director
                    Division of Stationary Source Enforcement
       TO:          U. Ray Cunningham,  Chief
                    Air Programs & Energy Branch, Region III
       DISCUSSION:  See PSD/135
       CR:          11.5 [Hard Copy]; 10.25

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                                                                     6.14
6.14   DATE:        July 9,  1982
       SUBJECT:     Reactivation of Amerada  Hess  Corporation's  Port
                    Reading  Facility and PSD Review
       FROM:        Edward E.  Reich, Director
                    Division of Stationary Source Enforcement
       TO:          Conrad Simon, Director
                    Air & Waste Management Division,  Region  II
       DISCUSSION:   See PSD/136
       CR:          3.21 [Hard Copy]

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                      •JNITSL .:ATES ENVIRONMENTAL .3C?CT=C".  -/N AGENCY
   DATE   AIAY  3 1983          Region  10,  Seattle, Wasnington


    ".CT   Determination of A1r Quality Degradation              /—.  _
                                                                *
         Alexandra 8. Sa1th, Director    *-v   «— ««-           -    f.  •
         Air and Waste Management Division, M/S 532             \

     70  Sheldon Meyers, Director                             "'"""'•^-
         Office of Air Quality Planning and Standards, ANR-443

         In your February 17, 1983 memorandum concerning clarifications of the
         Emissions Trading Policy, we were pleased to read a firm statement on the
         policy for determining the amount of degradation of air quality for
         source specific applications.  UhJle you were speaking 1n the context of
         the amount of degradation of air quality due to an emissions trade at a
         source for comparison with significance levels, we noted that this 1s
         directly applicable to determining PSD increment consumption.  You said
         that the method of finding maximum changes In air quality Impact must be
         determined on both a spatially and temporally consistent basis.  We
         agree.  The maximum amount of PSD Increment consumed must be determined
         by modeling the net changes 1n emissions (between the baseline and future
         cases) sequentially for each time period with at least a full year of
         meteorological  data.  The resulting  maximum Impacts of this type of
         analysts specify the maximum amount  of Increment consumption at each
         receptor.   This 1s the way we have performed Increment analysis In the
         past and the way we will  continue to perform 1t 1n the future.

         We have been told by PSO  sources 1n  the past that this 1s not the proper
         method of assessing the amount of Increment consumed.  Instead they
         suggest that the proper way 1s to first model the baseline emissions, and
         determine the maximum baseline Impact at each receptor.   The maximum
         Increment  consumption 1s  then the difference between the maximum baseline
         and the maximum future Impact at a given receptor, disregarding the fact
         that these maximum Impacts  may have  occurred during different time
         periods of the  modeled year.  This approach 1s spatially consistent, but
         1t 1s  not  temporally consistent.  Thus, 1t will  not produce a true
         measure of air  quality degradation.

         Although we have disagreed  with applicants on this approach in the past,
         we have not until  now been  able to point to clarifying guidance on the
         Issues your memorandum of February 17 provides this guidance and will be
         very helpful  in  future  discussions on the Issue.
        cc: Modeling  Contacts  (Regions  1-9)
            Joe Tlkvart,  QAQPS
ooe n xv arc, UAQPS
Director, A1r & Waste Management Division, Region 2-4, 6-3
Director, Air Management Division, Regions 1, 5, 9
EPA Fw» !!2»4 («••. ]>7ft)

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                                                                CIS
             0. S. ENVIRONMENTAL PROTECTION AGENCY
                  REGION IV - ATLANTA, GEORGIA
DATE:     May 13, 1983

SUBJECT:  PSD Increment Consumption Guidance

FROM:     Chief, Air Management Branch

TO:       Winston Smith
          Dick Schutt
        L/Oick DuBose
          Roger Pfaff


Attached is a memo from the Region X A4JFMD Division Director to
Sheldon Meyers relating to a guidance document issued by Sheldon
oa February 17, 1983, and apparently relating to the manner in
wbch we determine PSD increment consumption.  I am not sure I
fully understand the comments made by Alexandria Smith, but they
do appear to impact on questions which the states have been
raising in our region.  I would appreciate your scheduling a
briefing to bring me up-to-date on this matter.
    s T. Wilbura

Attachment

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 '           UNITED STATES ENVIRONMENTAL PROTECTION AGENCY         a.\>
                    Office of Air Quality Planning and Standards
                    Research Triangle Park, North Carolina  27711


                                 JAK 2 0  224
MEMORANDUM

SUBJECT:  PSD Increment Consumption Calculations

FROM:     John R. O'Connor, Acting Director
          Office of Air Quality Planning and  Standards (MD-10)

TO:       Thomas W. Devine, Director
          Air and Waste Management Division,  Region  IV

     Your November 13, 1983, memorandum proposes  that spatial and temporal
calculation of PSD Increment consumption Is the appropriate methodology
to be used In the ambient analysis for the Alumax PSD permit.  This
methodology Is used by Region IV as well  as all States within Region IV
We also understand (memorandum from A. Smith  to S. Meyers, dated May 3,
1983} that Region X is now implementing this  method  for all of their
PSD permit processing.

     We agree that the spatial and temporal calculation of PSD increments
is appropriate not only for Alumax but for all cases where PSD increment
consumption calculations need to be made. This methodology is consistent
with the manner in which the total concentration  is calculated for
comparison with ambient standards and is consistent with the method used
to calculate incremental concentrations for Level  II emission trades
(memorandum from Sheldon Meyers to the Director,  AWMD/AMD, Regions I-X,
dated February 17, 1983).  This methodology is also consistent with our
interpretation of the Clean Air Act and definition of increment and
baseline concentrations in the PSD regulation.

     If you have any questions concerning the use of this method for
tracking the use of PSD .increments or you are aware of any situations
where it results in a significant impact on a past decision, please
contact me or Dean Wilson of my staff.

Attachment

cc:  Director, Air 4 Waste Management Division, Regions II,  III, VI-YIII, X
     Director, Air Management Division, Regions I, V, IX
     Chief, Air Programs Branch, Regions I-X
     Richard Rhoads
     Sara Schneeberg
     Mike Trutna
     Darryl Tyler
bcc:  Regional Modeling Contact, Regions I-X
      B. Hogarth

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                                                                5.17
          UNITED  STATES  ENVIRONMENTAL PROTECTION AGENCY
                   REGION  IV  - ATLANTA,  GEORGIA
   DATE:
SUBJECT:  Spatial and Temporal Calculation of Air Quality
          Concentrations

   FROM:  Director, Air and Waste Management Division
     TO:  Dr. Bernie Steigervald, Director   (KD-10)
          Office of Air Quality Planning and Standards
          Environmental Protection Agency
          Research Triangle Park, North Carolina     27711
SUMMARY

The South Carolina Department of Health and Environmental
Control has asked Region IV to provide additional guidance on
the calculation of PSD  increment consumption.  Alumax Corporation,
a large industrial source located near Charleston, South Carolina,
is concerned that the state is using a procedure for calculating
PSD increment that is not consistent with the procedure used by
other states.

The procedure used by Region IV, as well as all states within
Region IV, has been to  calculate the increment on a spatially
and temporally consistent basis.  This approval is supported by
guidance from Sheldon Meyers in a February 17, 1983, memorandum
to all regions regarding calculation of increment consumption  in
the 'Emissions Trading  Policy."  It is also supported by EPA's
conditional approval of Florida's PSD rules now undergoing
final review by Headquarters.

Alumax believes that the increment need only be calculated on  a
spatial basis and has pointed to a 1981 PSD permit for Alcoa
(now ARGO metals) granted by Region X.  However, since tne
issuance of that permit, Region X has followed the spatial and
temporal-concept of increment consumption.  Region X also has
written to OAQPS confirming that Region X will implement the
spatial and temporal procedure for PSD sources (May 3, 1983,
letter from Alexandra Smith to Sheldon Meyers).

-------
                                 -2-
  ACTION

  Region IV will  continue  to  insist  that all increment consumption
  be  done on the  basis  of  a spatially and temporally consistent
  basis.  Since South. Carolina has asked that EPA provide written
  guidance in this  area, we believe  it is now necessary for OAQPS
  to  provide the  regional  offices with a confirmation that the
  spatial and temporal  calculation of air quality impact applies
  not only to the 'Emissions  Trading Policy,' but also to PSD
  as  well as any  other  air quality related modeling permitting.

  BACKGROUND

  Telephone call  from the  South Carolina Bureau of Air Quality
  Control, October  11,  1983.
          A./^«4
         J«.  Devine

'   Enclosures  (3)
   cc:   Dean Wilson (MD-14)
        Research Triangle  Park,  North Carolina

        Rob Wilson
        Region X, Air Programs

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           UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                        WASHINGTON, D.C. 2W60
                             JEStf SB*
                                                         om« or
                                                       Alt AND RADIATION
MEMORANDUM

SUBJECT:  Applicability of PSD Increments to Building
          Rooftops

PROM:     Jd|lt{$*A. Cannoi
          Assistant Administrator
          for Air and Radiation

TO:       Charles R. Jeter
          Regional Administrator, Region 17


     The following is in response to your letter of November 10,
1983, concerning issues which you felt required review for national
consistency relating to a new source review for an Alabama Power
facility in downtown Birmingham, Alabama.

     On September 29; 1983, your office informed the State of
Alabama that~a new source's compliance with the PSD increments
must be measured on the tops of buildings, as well as at ground
level.  Since then we have discussed the question extensively
among ourselves and with representatives of the State of Alabama
and the company.  For the reasons that follow, I do not believe
we are in a position to definitively assert that. PSD increments
apply to rooftops without further information as to the conse-
quences for the PSD system as a whole.  Accordingly, I recommend
that we inform Alabama that we do not now require that compliance
with PSD increments be measured at the tops of buildings.  A
State may, of course, adopt such an approach if it so desires.

     Between 1970 and 1983, it appears to have been general EPA
practice to determine compliance with both NAAQS and PSD  increments
at ground level, not at roof level.  On March 18, 1983, however,
Kathleen Bennett, in a letter to the State of New YorJc, determined
that the "national ambient air quality standards are designed to
protect the public health and welfare and apply to all ambient
air which does include the rooftops and balconies of buildings
accessible by the public.*

     Z believe this conclusion was correct.  Apartment balconies,
rooftop restaurants, and  the like present a potential for human
exposure that the primary ambient air quality standards  should be
interpreted to address.

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                                                                6.18

                            -2-
      Given this conclusion,  one could argue,  based  on the text
 of  the  relevant regulations  and the Clean Air Act,  that the PSD
 increments apply wherever the NAAOS apply, and that both must
 apply throughout the  "ambient air."  However,  the PSD system,
 unlike  the NAAOS system,  does not aim at achieving  one single
 goal.  Rather it represents  a balance struck  first  by Congress
 between a given level of  protection against degradation and a
 given potential for economic growth.  It appears  that the
 calculations  on which that balancing judgment was based all
 assumed that  PSD increments  would be measured at  ground level.

      A  number of state officials who are now  administering PSD
 have  argued to me that by measuring PSD increments  on rooftops
 as  well as at ground  level,  EPA would aaka the PSD  system
 appreciably more stringent than Congress contemplated.  Although
 major urban areas are all Class IX areas, this approach, it is
 argued,  could result  in constraints on growth comparable to
 those that apply in Class Z  areas - national  parks  and wilderness
 areas.   Such  an outcome would not, it is argued,  be consistent
'with.-Congressional intent*.

      Zn  these circumstancesr Z think that preserving the status
 quo is particularly advisable because?

      •   It is likely  that Alabama did not contemplate adopting a
 •rooftops* approach to PSD when it took over  the PSD program.
 That  expectation-!  though  not decisive, "toes provide some reason
 not to  change the situation  without formal rulemaking.

      •   The consequences  of  an erroneous decision to consider
 increment consumption on  rooftops will be more severe than those
 of  an erroneous decision  not to consider them. The adoption of
 such  an  approach will present at least £ procedural, and, probably
 a substantive obstacle to development in urban areas, while in
 its absence air quality will still be protected by  the_NAAOS, by
 the PSD  increments applied at ground level, and by  the~ot£e*r
 aspects  of PSD review such as Best Available  Control Technology.

      Therefore, Z have concluded that since the State of Alabama
 has authority under an approved implementation plan for adminis-
 tering  the PSD program within Alabama, it is  their  responsibility
 to  apply this principle of maintaining the status quo to this
 case, taking  all the  relevant facts into account.

      Please advise the State of Alabama of the Agency's position
 on  these points as our response to the issues which they raised
 in  meetings with both of  us*

-------
jc:   A. Aim
      P. Angell
      T. Devine
      G. Emison
      w. pedersen
      P. Wyckoff
      S. Neiburg

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                                                                                    6.20
       '=         UNITED STATES ENVIRONMENTAL PROTECTION AGc.MCY
x ^S^l J                 Office of ' ir Quality Planning and Standards
'-•-.   „/                  Research! .angle Park, North'Carolina 27711
                                    JAN 2 9 1987
 MEMORANDUM

 SUBJECT:  Implementation of the RevlsedJElodeling Guideline for Prevention of
           Significant Deterioration
 FROM:     Darryl  D. Tyler, Director
           Control Programs Development Qlyfsion (MD-15)

 TO:        Director
           A1r Division, Regions I-X


      Section 165(e)(3)(D) of the Clean A1r Act (Act)  requires the Administrator
 to adopt regulations specifying with reasonable particularity models  to be
 used to comply with the Act's PSD requirements.  To carry out these requirements,
 the 1978 "Guideline on A1r Quality Models" was Incorporated by reference in
 40 CFR 51.24 (now renumbered 51.166) and 40 CFR 52.21.   Many States have
 adopted this guideline In their PSD regulations.

      On September 9. 1986 (51  FR 32176), EPA promulgated amendments to
 40 CFR 51.24 (now renumbered 51.166) and 52.21  to substitute by reference the
 "Guideline on A1r Quality Model.-. (Revised).* EPA 450/2-78-027R, in these
 regulations.  This change became effective October 9, 1986.  This means that
•all  Modeling done pursuant to the PSD requirements must  either comply with
 the 1986 version  of the modeling guideline or be specifically approved by EPA;
 modeling done pursuant to the 1978 guidance may no longer be accepted.

      The PSD permits are reviewed by EPA, State, or local  agency personnel
 depending on whether and to whom EPA has transferred the PSD program.  This
 program transfer  could take the form of:  (1) a delegation where the State or
 local authority agrees to act In the Administrator's place to apply the
 requirements of 40 CFR 52.21  regulations to sources, or  (2) a State implementa-
 tion plan (SIP) where States have adopted their own PSD  regulations which
 comply wlth-40 CFR 51.166 (formerly 40 CFR 51.24).  For  the few areas of the
 country where EPA has not transferred the PSD program, EPA applies 40 CFR
 52.21 regulations to permit PSD sources.  The mechanism  of Implementing the
 revised modeling  guideline 1s different for each of these situations.

-------
                                                                               5.20
Areas where EPA Has PSD Permitting Authority

     (1) As of October 9, 1986, EPA should not Issue a PSD permit when a
model other than that contained In the revised guideline is used to comply
with the air quality Impact analysis.  An exception is If EPA approval
was obtained for a specific case.  The regional  meteorologist should
carefully review all pending PSD permit applications to insure that
current modeling guidance has been used.

States with PSD Permitting Authority by Delegation

     For both full and partial delegations, Regional Offices should
Initiate updating of the delegation by informing the relevant reviewing
authority that the revised modeling guideline has been promulgated in
40 CFR 52.21.  The Region should then determine which type of delegation
agreement exists for each State and take one of the following actions:

     (2)  For State and local agencies which have a delegation agreement
that specifies exactly which version of 40 CFR 52.21 (e.g., January 1, 1986)
is to be used when processing PSD permits, the delegation agreement must
be amended to include the revised modeling guideline (e.g., as of October 9,
1986).

     (3)  For State and local agencies which have a delegation agreement
that requires incorporating all revisions to 40 CFR 52.21  into their PSD
permitting process, EPA should notify the State or local agencies that all
modeling done pursuant to the PSD regulations must comply with the revised
modeling guideline or must receive prior approval from EPA.

     Regional Offices should publish a Federal Register notice announcing
which States have modified their delegation agreements to incorporate the
revised modeling guideline and which States have incorporated the revised
modeling guideline Into their PSO permitting process.

States-with PSD Permitting Authority by SIP

     For States that have PSO permitting authority by SIP's, the Regions
should review the State and local regulations to determine whether the
existing regulations preclude the use of the revised modeling guideline
(e.g., rules which reference the 1978 guideline explicitly or incorporate
40 CFR 52.21 by reference *s of a date prior to September 9, 1986) or do
not explicitly preclude the use of the revised modeling guideline (e.g.,
a~general statement that restricts air quality modeling to EPA-approved
models).  The State or local agency must then take one of the following
actions:

     (4) State or local agencies with SIP's which preclude the use of the
revised guideline must revise their SIP to remove the reference to the
old modeling guideline and replace It with a reference to the revised
modeling guideline.

-------
                                                                                 6.20
     (5) State and local agencies that do not explicitly preclude the use of
the revised modeling guideline can either revise their PSD regulation to
explicitly Include the revised modeling guideline or submit an enforceable
letter of commitment In lieu of a regulatory revision.  This commitment
letter must mention that the generalized language now means that all PSD
permit applicants must use the revised guideline models or models otherwise
approved by EPA.

     Obviously, all SIP revisions must be accomplished through the regular
Federal Register process.  All letters of commitment must also be incorporated
by reference into the SIP.  To conserve resources, Regional Offices can
process as direct final action SIP packages that contain only revisions aimed
at Implementing the revised modeling guideline.

Current SIP Processing

     Even though EPA stated In the September 9, 1986, Federal Register that
the revised modeling guideline would become effective on October 9, 1986, the
Act gives States 9 months (until July 9, 1987) to make the necessary changes
1n their programs.  To avoid disapproving the SIP revision, EPA should condi-
tionally approve SIP actions where the State has committed to: (a) revise
their regulations 1rt a timely manner, and (b) limit PSD modeling to analyses
which comply with the revised modeling guideline or models otherwise approved
for use by EPA.  No PSD SIP will be approved unless It Incorporates the
revised modeling guideline.

Follow-up

     If a State refuses to make the necessary regulatory changes or commitments,
EPA will withdraw permitting authority from the State for any source using a
nonguldellne model without prior EPA approval.  The EPA will then promulgate
40 CFR 52.21 Into the SIP for such permits so that EPA retains permitting
authority for those permits.  This, of course, requires full rulemaking
action 1n the Federal Register.

     By the end of February 1987, please let Nancy Mayer know:  (a) which
category (1, 2, 3, 4, or 5 above) applies to each of your States; (b) what
actions are planned to incorporate the new guideline into each State's PSD
programs; and (c) a schedule of when these actions will occur.  Ms. Mayer may
be reached at:

              FTS 629-5591
              Mall Drop 15
              Research Triangle Park, NC 27711

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                                                                              6.20
cc:  NSR Contacts, Regions I-X
     Chief, State Air Programs Branch
     Region I
     Chief, Technical Support Branch
     Region I
     Chief, Air Programs Branch
     Regions II, III, IV, VI, VIII, IX,  and  X
     Chief, Air and Radiation Branch
     Region V
     Chief, Air Branch
     Region VII
     N. Mayer

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                                                                  6.20
            UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                             REGION IX
                          215 Fremont Street
                        San Francisco. Ca. 94105
Ms. Betty-Jane Kirwan              10 JUL 1987
McLintock, Kirvan/ Benshoof,          uuu
    Rochefort 5 Weston
611 West Sixth Street
Suite 2100
Los Angeles/ California  90017

Dear Ms. Kirwan:

     This is to confirm your discussions with EPA  and  respond
to your letter of April €, 1997  to Nancy Barney  regarding  ths
issues of speciation and permanence  as  they  pertain  to the
ARCO Seep emissions.

     Federal regulations do not  require speeiation beyond
the prohibition on the use of nonreaetive hydrocarbons as
credits for netting or offsetting reactive hydrocarbons.
However/ EPA regulations (40 CFR 51.165(a)(l)(vi)(E)(4) and
51.165(a)(3)(ii)(D)) do require  reactivity and health  and
welfare equivalency tests  (an indirect  form  of speciation)
and it is the District's responsibility to weigh these issues
in their analysis.

     EPA has received no evidence of ARCO's  intent to  ever
dismantle the containment device/ therefore/ we  believe the
emission reductions achieved would be permanent.  If/  however/
the containment device were dismantled  or the effective
capture of the seep emissions reduced/  ARCO  would  have to
obtain additional reductions as  may  be  required.  As for  the
question of ARCO's offset responsibilities if the  seep naturally
stops emitting/ EPA reserves  judgement  at this time.  Any
decision in this area would require  consultation with  EPA
Headquarters1 policy and legal staff.

     As you are aware/  there are other  issues regarding the
seop as well as other potential  ARCO offsets which have not
yet been resolved.  Nonetheless, I hope this information is
of use to you.


                                     Sincerely/
                                         Source Section
ce:  Brian Shafritz,  SBAPCD
     Richard Grow,  SLS
     Gary McCutchen,  OAQPS (MD-15)

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                                                                  6.20
                                     IN REPL*  A-3-1
                                     REFER TO  NSO 2
Mr. William J. Dennison
Acting Director of Engineering
South Coast Air Quality Management District
9150 Flair Drive
El Monte, Ca. 91731

Dear Mr. Dennison:

     EPA appreciates the opportunity to comment on the District's
draft Permit To Construct for the 1000 ton/day municipal waste
facility proposed by the Los Angeles County Sanitation District
at 4125 West Valley Boulevard, Pomona, California (Spadra
landfill).

     EPA commends the applicant and the South Coast Air Quality
Management District for incorporating the following controls
and emission limits on this project:

     *  Thermal DeNOz technology and Selective Catalytic Reduc-
        tion (SCR) for NOX
        Dry scrubbing for SO2
        Baghouse with Gore-Tex membrane bags for TSP
        Catalytic oxidation for CO
        Enclosed ash conveying and loadout system
        Emission limits of 22ppmv HOX, 23 ppmv S02r 12 ppmv CO
        (all at 3% 02 dry); PM less than 0.006 grain per set
        (0.011 gr/dscf @ 3% 02* dry, incl. condensibles)

     If you have additional information or wish to communicate
further with EPA on this project, please contact me or nave your
staff contact Janet Stromberg of our New Source Section at
(415) 974-8213.

                                 Sincerely,
                                 Wayne A. Blacfcard Chief
                                 New Source Section
                                 Air Management Division

cc: tttkir Resources Board  Attn: Ray Menebroker

be: /EPA, OAQPS, MD-15  Attn:  Gary McCutchen
     i-2-2
     A-3-3

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                                                                           -~  o.
                UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                      Office of Air Quality Planning and Standards
                     Research Triangle Park, Noah Carolina 27711
                               May 29, 1987
 MEMORANDUM

 SUBJECT:  yjlAMAP 6 DispeesionJIodeling with Building Wake Effects
 FROM:      bseph A. Tikvart, Chief
           Source Receptor Analysis Branch (MO-14)

 TO:        Bruce P. Miller. Chief
           Air Programs Branch, Region IV


     In response to your request, the Model  Clearinghouse has reviewed
 Region IV s position with respect to modeling down wash for primary and
 background sources.  We also discussed this issue as part of the broader
 problea of modeling background sources at the Regional /State Modelers
 Workshop, May 12-15, 1987.  The position of the Regional /State Modelers
 was that all sources which are explicitly modeled should  be modeled
 according to current guidance, e.g. model for down wash if the stack is
 lower than GEP.  The Clearinghouse concurs with this consensus.

     Considerable discussion took place at the Workshop on how to decide
 which background (off-site)  sources should be explicitly  modeled in a
 regulatory analysis.  We found that it was difficult to establish any
 more specific criteria for deciding which sources to model  beyond those
 general criteria already In the Guideline on Air Quality  Models.  The
 Guideline (Section 9.2.3) essentially recommends limiting the number of
 explicitly nodeled background sources to those sources expected to cause
 a "significant concentration gradient" in the vicinity of the primary
 source
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                                       2

     Specific answers to your four questions are as follows:

     1.  Should all such sources which may experience downwash be modeled
utilizing the downwash algorithm?

     We agree with your position that primary sources should  be modeled
for downwash if their stack(s) are below GEP.

     2.  Is it necessary to perform downwash analyses on off-site
sources when evaluating the impact of another source?

     Based on the Workshop discussion we also agree with your position
that off-site sources, selected for modeling based on Regional  Office
judgment, should be modeled for downwash.  However, if an off-site source
is located outside of the receptor area selected by Regional  Office
judgment for consideration, then only concentrations for the  receptor
area need to be calculated.

     3.  If downwash is required, how should the States address the
expected region-wide impact?

     It is our position, for SIP analyses, that all "incidental" problems
should be corrected as part of the SIP or SIP revision.  This is because
the SIP is the basic tool defined by the Clean Air Act for ensuring that
standards/PSD increments are attained/maintained everywhere.   The "region-
wide" problem you speak of may not be as serious as you envision if the
modeling guideline is followed in selecting the background sources and
the receptor area, as discussed above.

     4.  What experience with this problem has been noted by  EPA during
PSD reviews?

     Although we have not been made aware of any specific cases, we
understand that Region V has had some issues where incidental  problems
from background sources were uncovered during a PSD analysis.  Given the
PSD regulations and requirements we see no other alternative  than to deal
with these problems when they come up.  When an incidental problem Is
uncovered during the analysis to which the PSD source contributes
significantly, the problem should be corrected before the permit is
i ssued.

     If you have any questions please contact me.  If further discussion
is needed on Questions 3 or 4 it is best that you contact the Control
Programs Operation Branch (Tom Helms or Sharon Reinders).

cc:  T. Helms
     G. McCutchen
     S. Reinders
     R. Rhoads
     0. Tyler

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              UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                                   REGION  IV

                              34S COURTLAND STREET
                             ATLANTA. GEORGIA 303S3
 MEMORANDUM


    DXTE:   £P» ? °.

 SUBJECT:   UNAMAP VI Dispersion Modeling With Building Wake Effects

    FRCM:   Bruce  P.  Miller,  Oiief  ^^^ f.
           Air Programs Branch
     TO:  Joseph Tikvart,  Chief
          Source Receptor  Analysis Branch


SDMMABY

The North Carolina  Department of Natural  Resources and Connunity Development,
Division of Environmental  Management (DEM), has provided us with an analysis
that shows that the ONAMAP VI version of  the  Industrial Source Complex
Model when used with  the building  wake  effects option calculates exceedances
of the NAAQS  for most small sources.  The problem is  compounded  because
UNAMAP VI models now  allow for  source to  receptor combinations of less than
100 meters.

The North Carolina  DEM has asked that we  respond  to four questions dealing
with EPA modeling requirements.  These  questions  are:

1.  Should all  such sources which  may experience  downwash be modeled utilizing
    the downwash algorithm?

2.  Is it necessary to perform downwash analysis  on off-site sources
    when evaluating the impact  of  another source?

3.  If downwash is  required, how should the states address the expected
    region-wide impact?

4.  What experience with this problem has been noted  by EPA during PSD reviews?

The Region 17 position to  question No.  1  is that  any  source with a stack less
than GEP is required  to utilize the downwash  algorithm if it is  the primary
source undergoing review.  Our  position on question No. 2 is that those  off-
site sources  should also be modeled with  the  downwash algorithm  if their
stacks are less than  GEP and ftiesp sources are included in the refined
analysis*  Our  position on question No. 3 has been that when these off-site
sources are modeled with or without downwash  and  an exceedance of the NAAQS
is found, then  the  permitting agency must revise  the  SIP to bring those
sources into  compliance.   If the primary  source is a  PSD source  and the

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                                    -2-
 impact at  the receptor with  the modeled  exceedance is less than the signifi-
 cant  impact value,  then  the  primary source  can still be permitted and the
 SIP revised independently of the permitting action.   In the case where the
 primary source  is a SIP  source, the SIP  revision is  placed on hold until
 the modeled exceedance(s) are corrected.

 In regard  to question No. 4, we have not noted any problems to date in
 Region IV  where the PSD  permit has been held up due  to the impact of the
 other sources with  respect to the NAAQS.  However, we expect that there
 will  be numerous problems with respect to both the NAAQS portion of the PSD
 process and with the SIP review process  if  we  routinely require a downwash
 analysis for all off-site sources.  The problem as we see it is twofold.
 One,  these smaller  sources have never been  modeled in the past;  and two,
 the modeling must be done at maximum allowable rates.

 Host  of these smaller sources operate at only  30-50  percent of the SIP
 allowables, and in  some  cases the state permit is more stringent than the
 SIP allowables.  However, the permitting procedures  to make the necessary
 change in  the SIP allowable  emission rate can  take up to two years to change,
 thus  placing an economic burden on the source  requesting the SIP change.

As you can see, we  are faced with some serious problems that cannot be
 resolved without a  fundamental change in our modeling and permitting pro-
cedures.   Please provide us  with your responses to our positions on the
 four North Carolina questions and your recommendation on how to proceed
with  a SIP approval where the source requesting the  SIP change has little
or no impart on modeled  exceedances created by other sources.

We understand that  the issue of off-site sources will be addressed at the
Kay Regional Meteorologist meeting.  However,  we need to resolve as soon as
possible the issue of how to process a SIP  change which uncovers modeled
violations unrelated to  but within the impact  area of sources whose emission
Imitations would be relaxed by the SZP change.

Please provide us with a response to the modeling issues identified by May 22,
 1987, if possible.


Enclosures:  North Carolina letter and modeling printout

cc: .Air Branch Chiefs, Regions I-HI and V-X,  w/letter

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         7. PSD



Ambient Monitoring/Analysis

-------
                UNITED STATES ENVIRONMENTAL PROTECTION AGENCY              7'2
i'.e;-.iun  IV,  ijurvcill.incu .iiul Analysis Division, College Station Rd. ,  Athens, T»i.*/ J0f>05


                                                                           "
                                                                                  .
                                                                               /*•.•
OAre    4UL-6I979
  CT    Environmental Protection Agency Quality Assurance Policy Statement

FHOM    James H. Finger, Director                          ^ ^y.i-t;x,'i:
        Surveillance and Analysis Division

  TO    Division Directors and Office Chia£s\
                                        UAJ     \v-       :     •;
THRU:   John C. White, Regional Administrator         l •-.,  •  ••
        Region IV                       *             li' H'"        ' ' i u
                                                     y Uii* —..    7 it
        SUMMARY                                            VC'~	
       Responsibility for the Regional Quality Assurance Programs  is  within the
       Surveillance and Analysis Division where it has been for several years.
       A lot has been accomplished in select areas, but many areas are sadly
       lacking at present.  Mr.  Costle recognizes the need for uniform quality
       assurance activities, agency-wide, in all monitoring activities which
       he has expressed in the attached EPA Quality Assurance Policy  Statement.

       Of particular interest, the policy statement has defined monitoring "as
       all environmentally related measurements which are funded by the EPA or
       which generate data mandated by the EPA."  This includes not only the
       activities performed by EPA personnel, Federally funded State  and local
       agencies, and private industries, but also their contractors.

       tie recognize this is a monumental task and there are a lot  of  obstacles
       to be overcome, but most of what we have already accomplished  has been
       done.with limited or no guidance or regulations.  Mr.  Costle is very
       serious about this policy being implemented agency-wide.  We are very
       serious about fulfilling our responsibilities within Region IV to ensure
       that any decisions made or enforcement actions taken are based on scien-
       tifically valid and defensible data of known accuracy and precision.
       Because of the way Region IV is organized, your full cooperation is
       essential to the effective implementation of the agency's quality assur-
       ance policy.

       Wade Knight has been designated as the Regional Analytical  Quality Con-
       trol Coordinator for water.  Doyle I. Brittain has been designated as
       the Regional Analytical Quality Control Coordinator for air.  From time
       to time these persons will need to work witli you or members of your
       staff concerning quality assurance.

       In the future all- grants and contracts and EPA mandated industry monitor-
       ing will have to contain standard language on quality assurance.  To
       ensure effective implementation of a region-wide quality assurance pro-
       gram ve request that:
    1170-4 («••- J-7

-------
                                  -2-

        you notify us in advance of all meetings which will result,,
        In monitc	

            provide copies of all draft monitoring project proposals,
                    id contract applications to us for rei
                    '	'		
     •  you provide copies of all draft monitoring reports to  us  for
        review.
ACTION
I request that you notify members of your staff of this new policy  and
that you provide us with your full support.

BACKGROUND

May 30, 1979 memo from Douglas M. Costle to Regional Administrators.
Subject:  Environmental Protection Agency (EPA) Quality Assurance
Policy Statement
James H. Finger

Attachment

ee:  Jin Wilburn
     Tommle Gibbs
     Winston Smith
     Doyle T. Brit tain
     Jim SUva
     Bobby Carroll
     Wade Knight
     Mike Carter
     Lee Tcbo
     John Hasan
     John Marlar
     Jim Patrick
     Jim Scarborough
     Roy Clarice
     Ralph Jennings
     Lee Tebo
     Gary Hutchinson
     George Uarlow

-------
                   QUALITY ASSURANCE POLICY STATEMENT                           ?'2
                    ENVIRONMENTAL PROTECTION AGENCY
                          JANUARY 24, 1979
                             PREFACE

     Under present Environmental Protection Agency (EPA) order the Office
of Research and Development (ORO) 1s responsible for the development of
Agency-wide quality assurance programs.  Current activities Include:
Evaluation and standardization of total measurement systems — sampling,
analysis, data collection and presentation; preparation of quality assurance
criteria, guidelines and manuals; preparation and distribution of reference
samples and materials; interlaboratory testing of systems' and operator
performance; on-site inspection of laboratories and performance audits;
data audits and development of statistical methodology; and quality
assurance assistance and participation in training programs.  These
activities comprise the current quality assurance effort which, on a
voluntary basis, support EPA, State, and other monitoring programs.

     Agency policy will now require participation in an Agency-wide
quality assurance program by alj. Regional Offices, Program Offices,
EPA Laboratories, and those monitoring and measurement efforts supported
or mandated through contracts, regulation or other formalized agreements.
This requirement includes quality assurance programs for the States which
will be cooperatively developed with them and implemented through the
Regional Offices.  The ORD is delegated primary responsibility for
developing the national quality assurance program and directing and
coordinating its Implementation.

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                           Introduction

     The EPA operates under the legislative authority of various
Congressional Acts which mandate the responsibilities the Agency
must fulfill in order to protect and enhance the Nation's environment.
In accordance with this mission, the Agency establishes and
oversees the attainment of standards for environmental quality
which protect public health and welfare.  This effort requires
extensive research and monitoring for the systematic collection
and evaluation of physical, chemical, biological, and other data
related to pollution effects, sources, transport, and control.
These data must be scientifically valid, defensible, and of known
precision and accuracy -- this is. the goal of the Agency's quality
assurance program.

     This document presents the basic management requirements and
a bn'ef description of organizational responsibilities.

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                                                                            7.2
          UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
"• _,tix"                     WASHINGTON. D.C.  2CU60

                               HAY 3 01979                     ^"


                                                                THE

 MEMORANDUM

 70:        Deputy Administrator
            Director, Science Advisory Board
            Director, Office of Regional  and Intergovernmental Operations
            Regional Administrators
            Assistant Administrators
            General Counsel

 SUBJECT:   Environmental  Protection  Agency {EPA} Quality Assurance
            Policy Statement


      The EPA must have a comprehensive quality assurance effort to
 provide for the generation, storage, and use of environmental data which
 are of known quality.  Reliable data must be available to answer
 questions concerning environmental quality and pollution abatement
 and control measures.  This can be done only through rigorous  -
 adherence to established quality assurance techniques and practices.
 Therefore, I am making participation in the quality assurance effort
 mandatory for all EPA supported or required monitoring activities..

      An Agency quality assurance policy statement  is attached which
 gives general descriptions of program responsibilities and basic
 management requirements.   Far the purpose of this  policy statement,
 monitoring is defined as all environmentally related measurements
 which are funded by the EPTor which generate data mandated by the EPA.

      A detailed implementation plan  for a total Agency quality
 assurance program is being developed for issuance  at a later date.
 A Select Committee for Monitoring, chaired by Dr.  Richard Dowd, is
 coordinating this effort, and he will be contacting you directly
 for your participation and support.   I know that eacb^of you shares
 my concern about the need to improve our monitorjftg programs and/
 data; therefore, I know that you will take the/necessar* actions/ ^**
 that will ensure the success of this effort./      '  *        '   r
                                                              p %i^» »^^^^%
                                                Jas  ^  Castle

 Attachment

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                                                                              7.2
                    Management Requirements and
                  Organizational Responsibilities
     T'-v? quality assurance program will be centrally directed and
wi r ':» -:--y:.i7anted by the organizational elements that it encompasses.
The " 7. li-jr. Cation of the quality assurance program has two primary
rec::isi£?s.  First, the program must be given direct attention by top
mar.:..;--".-,-,t so that it is implemented as policy on an Agency-wide basis.
Sec:-•••*, tJ:e program must have sufficient resources and authority to
support \ national program effort.

     ."inacament Requirements.  The quality assurance program will
be ccrcpulscry for all Agency-supported or required environmentally
reU?*J monitoring and measurements which generate data for EPA use.
Each T.cnitoring effort initiated by any office must have as part
of-its program acceptable quality assurance.  Its acceptability will
be -!.-torsi .i*d by consistency with specific criteria developed by
a c«-rr377y planned, directed, and coordinated quality assurance
progr.im.  Program implementation will make optimum use of existing
Agency resources and expertise, and provide for the least disruption
of c.'ijoing activities.  The program will extend outside the EPA,
bof- -:-i  its structure and in its responsibility to provide services.

     Organizational Responsibilities.  A brief description of organizational
res; edibilities is given below.  A more detailed explanation of
fun.-v>.nS  -ivJ responsibilities will be included in an Agency-wide
implswentation plan.
                                  3

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      Office of Research ana Development 'PRO).   The ORC  .till
 be the focal point for quality assurance policy and will  be
 responsible for:  The development of guidelines  and criteria;
 the coordination  and direction of the implementation of  the
 Agency program;  review, evaluation, and approval  of program
 quality assurance plans and activities, including those  stipulated
 in regulations; and  annual, or more frequent, reports  to  the
 Administrator on  the program progress and  efficacy.

      Program Offices.   The  Program Offices will be responsible
 for implementing  the quality assurance plans covering  all monitoring
 and measurement activities  within  their purview and  for ensuring
 that intra  and extramural monitoring programs are consistent
 with Agency policies and guidelines.   For the purpose  of this
 policy, the ORO is considered  a Program Office and this responsibility
 includes the monitoring and measurement efforts of the ORD research
 laboratones and  their  contractors,

      Regional Offices.  Regional Administrators will be responsible
 for  the implementation and coordination  of the mandatory quality
 assurance activities within their regions.  This responsibility
 also includes external monitoring and measurement activities
of States, local  agencies, and others covered by the Agency
quality assurance plan.

     Quality Assurance Advisory Committee.  As  soon as practicable
an advisory committee will  be formed to ensure  proper coordination

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                                                                            7.2
 of  the national quality assurance effort.  The committee will
 have representatives from the Program Offices, staff offices,
 Regional offices, and the States and will serve as an advisory
 group for the development of quality assurance policy.   This
 committee will be chaired and administratively supported by the ORO.

     Mechanism for Appealing Quality Assurance Decisions. •  Responsibility
 for the resolution of issues pertaining to the approval  of  quality
 assurance plans of activities will be at the lowest level of authority
 consistent with the scope of the monitoring or measurement  effort.
The ORO unit with responsibility for quality assurance will  refer
national, Interprcgram, unacceptable plans and other unresolved issues
to the Assistant Administrator for Research and Development for
decision after consultation with the appropriate Assistant  Administrator
or Regional  Administrator.

-------
 Ms.  Slum  (A-*01)
 Mr.  Hausshardt (A-101)
 Dr.  Oowd  (A-101)
 Mr.  Roush  (A-101)
 Ms.  Bernstein (A-130)
 Mr.  Drayton, Jr. (PM-208)
 Mr.  Duming (EM-329)
 Mr.  Jorling (WH-556)
 Mr.  Hawkins (AW-443)
 Or.  Gage  (RD-672)
 Mr.  Trakowski (RD-680)
 Mr.  Jellinek (TS-788)
 Regions I-X

 Work Group:
 C. Brunot  (RD-680)
 J. Clements (EMSL-RTP)
 U. Cox (OANR/OAQPS)
 B. Fair!ess (Region VII)
 C. Hendricks (UK-550)
 S. Hiemstra (PM-222)
 A. Jarvis  (EMSL-LV)
 J. Melone  (PM-223)
 B. Nussbaum (EN-340)
 W. Oldaker (Region I)
 0. Olson (EM-338)
 J. Pawlow  (WH-553)
 J. Rasnic  (EN-341)
 C. Ross (Region V)
 T. Stanley (RO-680)
 S. Wastler (TS-793)
 J. Winter  (EMSL-CI)

 Steering Committee:
 J. Finger  (Region IV)
 M. Halper (TS-793)
 F. Leutner (WH-553)
 D. Lyons (EN-338)
M.'Mlay (PM-222)
 W. Sayers  (RO-682)
 R. Smith (AfJR-443)

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                     UNITED STATES ENVIRONMENTAL PROTECTION AGENCY            7.4
                        jf-:ca of Air Qua!:*/ Planning and Standards
                        Research Triangle Park, North Carolina 27711
         PSD Significance Levels for Monitori
         Darryl D. Tyler, Acting Director
         Control Programs Development Division  j>fl3-15)

         Director, Air and Waste Management Division, Regions I - X


              The August 7, 1980, PSD promulgation introduced significance levels
         of projected ambient impacts for the purpose of determining whether
         a proposed source or modification would be eligible for an exemption
         from the requirement for ambient monitoring.  40 CFR 51.24(i)(8) and
         52.21(i)(3).  Typographical errors and miscalculations caused the numbers
         for either concentration or averaging time printed in the August 7,
         1980, document to be incorrect for four pollutants.  Those nollutants
         are nitrogen dioxide, lead, beryllium, and hydrogen sulfitie.

              Attached is a copy of Table A-2 from Amoient Monitorino Guide-lines
         for Prevention of Significant Deterioration (PSD) (EPA-45074-80-012.
         Nov. 1980, revised Feb. 1981).In case tnese revisions have not yet
         come to your attention, please note that the table contains the correct
         values and suoersedes earlier documents.  We expect these values to be
         the subject of future technical and conforming amendments, to appear in
         the Federal Register.  Should you have any further questions on this
         topic, you may contact Michael Trutna at FTS 629-5591.

         Attacnment
-.ft. tmm i:jO-* (ft

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                                                                          7.4
                TABLE A-2.  SIGNIFICANT MONITORING CONCENTRATIONS
           Pol1utant
                                        Air Quality Concentration (ug/m3}
                                             and Averaging Time
   Carbon monoxide
   Nitrogen dioxide
   Sulfur dioxide
   Total suspended participates
   Ozone
   Lead
   Asbestos
   Beryllium
   Mercury
 i  Vinyl chloride
 i
   Fluorides
   Sulfuric acid mist
   Total reduced sulfur (including
   Reduced sulfur (including
 i
Hydrogen  sulfide
575 (8-hour)
 14 (annual)d
 13 (24-hour)
 10 (2^-hour)
a
0.1 (3-monthJd
b
0.001  (24-hour)e
0.25 (24-hour)
15 (24-hour)
0.25 (24-hour)
b
c
c
0.2 (l-hour)e
 aNo specific air quality concantration for ozone is prescribe*].  Exemptions
 are granted wnen a source's VOC emissions are <100 tons/year.
  No acceptable monitoring techniques available at this time.  Therefore,
 monitoring is not required until acceptable techniques are available.
 cNo acceptable monitoring techniques available at this time.  However,
 techniques are expected to be available shortly.
  Th'e averaging times are corrected to be consistent with the averaging time
 of the standard.
 C7hese concentrations are corrected from the arevious srintins inc are
• approximately-five nmes the minimum detectable concentrations.  T.nese
 concentrations are consistent wit.u. r.t.u.er values '." tr.-.s tss'e.
                               i-6

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                                                                       7.5
7.5
DATE:
SUBJECT:
FROM:

TO:

DISCUSSION:
       CR:
July 31, 1981
Summary of PSD Policy Detenninations
Thomas VI. Devine
Air and Hazardous Materials Division, Region IV
All State/Local Directors
Region IV
Summary of PSD policy determinations during the period
from February 5, 1981 to July 15, 1981:
   1)  Is a source reactivation subject to PSD (see PSD/117)
   2)  The complete list of organic compounds not
       considered photochemically reactive and, therefore,
       not a VOC for purposes  of PSD is detailed.
   3)  Construction of a major source in a nonattainment
       area projected to be attainment (based on the
       approved Part D SIP) before startup, is not
       subject to PSD or Part D requirements.
   4) . Determination of modeling baseline air quality
       levels for 3-hour and 24-hour averages is discussed.
   5)  If an ambient monitor has been shut down, data
       obtained may still be deemed pertinent and useful
       under certain conditions.
   6)  A minor source which locates within a PSD area
      .and Impacts a nearby PSD area may trigger baseline
       and consume Increment within each of the areas
       under certain conditions.
   7)  A minor source which adds a major emission point
       could not escape PSD by considering previous
       decreases which cause the net increase to be
       less than the major source threshold.
   8)  An existing source may  change its designation
       from major to minor by  accepting a Federally
       enforceable limitation.
   9)  The 50 tons per year exemption under 40 CFR
       52.21(1)(7) cannot be claimed for an emission
       Increase of any pollutant unless the increase of
       each pol1utant"is less  than 50 tons per year.
  10)  TnT~air quality de minimus level for MOe is
       14  g/m3 annual average, as stated i n the
       published version of the regulation.
2.18 [Hard Copy]; 3.19; 4.19;  5.10; 6.11; 10.23

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                                                                7.6
       '-,                                        i*. Ai,  5
        7  UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                      iv.
   Jft»,
                            J43 COUHTkANO S
 REF:   4AW-AM                                       ~    N  19 1984
Mr. W.  Pin Johnson,  Chief                                    ,
Air Quality Section                                   AIR QUAL17*
Division of Environmental  Management
North Carolina  Oept. of  Natural Resources  &
  Community Development
P.O. Box 27687
Raleigh, North  Carolina  27611

Dear Mr. Johnson:

During  February 29 - March 1, 1984, this office conducted a PSD
Workshop for all Region  IV states.  During the workshop, a
question arose  concerning  the use of the significance  levels for
air quality impact as outlined in Section -III .A. of  40 CFR 51,
Appendix S.  The point was made that the significance  levels could
be used in determining whether a new source  impacts  an existing
National Ambient Air Quality Standard  (NAAQS) or increment viola-
tion, but seemingly  could  not be used  in cases where the impact
of the  new source is the first incremental impact which carries
the total air quality above the increment  or standard.

After a thorough review  of the PSD and new source review regula-
tions,  we have  concluded that the significance levels  apply to
all situations,  even if  the source under review is the one source
which causes the air quality to exceed the standard  or increment.
On May  13, 1980, EPA promulgated requirements for new source
review  of sources located  in attainment or unclassif iable areas
but causing or  contributing to NAAQS violations  (40  CFR 51.18(kJ).
That regulation clearly  references the significance  levels.  The
Preamble to the promulgation is even more  clear, stating that
the required program applies "to all sources causing or contri-
buting  to a violation of a standard, under the criteria used by
Section III .A.  of the Offset Ruling.-

Thus, a proposed source  which causes a modelled violation of NAAQS
can be  approved if the source's contribution to  total air quality
levels  at the site of the  violation  is less  than  the significance
levels.  Put another way,  the impact of the  source  is simply  not
analyzed beyond the  point  of significant  impact,  so  no violation
is considered to exist using this  procedure.  For example,  if  the
existing TSP air quality in an area  is 148 ug/ra3  24-hour  average,
and a proposed  new source  would add  3  ug/tn3, for  a  total  of  151
ug/m3,  the source may be approved.

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                                  -2-

   With respect  to  PSD increments,  the  Preamble to the June 18,
   1978,  PSD regulations  (43FR26398) ties  the  significance levels
   to PSD modelling without making  a distinction between new and
   existing  increment  exceedances.  Absent any such distinction, the
   significance  levels should be used for  PSD  preconstruction review
   in the same way  they are used for NAAQS review,  as  discussed
   above*  The only exception, also discussed  in the Preamble, is
   for impact on Class I  areas, for which  the  significance levels
   are not to be used.

   If you  have any  questions about  this  letter,  please call Roger
   Pfaff  at  404/881-7654.

   Sincerely yours,
\
V
  • 1 V	,
 'James T. Wilburn\ Chief
 ."Air Management Branch
/Air and Waste Management Division

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           UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                 Office of Air Quality Planning and Standards
                Research Triangle Park. North Carolina 27711
                           2 7 JUL 1987


 MEMORANDUM

 SUBJECT:   Ambient  Air Issue  from  New Jersey
           Department  of  Environmental Protection (DEP)
 FROM:      6.T.  rtelms,  Chief
           Control  Programs Operations Branch

 TO:        William  S. Baker. Chief
           Air Branch.  Region II

     In  response to your request. Me have reviewed your position with
 respect  to a determination of ambient air applicability in the vicinity
 of the proposed EF Ken 11 worth, Inc.  (EFKI) cogeneration unit in Union
 County.  New Jersey.  As we understand it. EFKI will build and operate the
 plant on property  leased (long-term lease) from Sobering Corporation.  As
 we see it  the EFKI operator will be completely separate from the Sobering
 operation  and except for the land owned and operated by a different
 Company.   The fact that EFKI has entered into a contract to supply
 electricity/ steam  to Schering is not really relevant to the ambient air
 issue.

     He  agree with your position that all property outside of the property
 leased and controlled  by EFKI would be considered ambient air.  The word
 "controlled" is emphasized since nothing 1s said in either your memoranduns
 or New Jersey's letter to Region II about what, if any. fence or other
 physical barrier would be installed to prevent public access to the EFKI
 leased property.   If such physical barrier is not erected, then all land
 including- the leased site would have to be considered as ambient air.

     If you. have any questions, please contact Sharon Reinders.
 at 629-5255.

cc:  D.- Tyler
     J. Tikvart
     D. Wilson
     G. NcCutchen

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                  UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                    REGION II
 DATE:    JUN 1 9 19*'

JBJECT:   Ambient Air Issue from New Jersey
        Department of Environmental Protection
 FROM:   William S. Baker,
        Air Programs Branca.
   TO:
        G. T. Helms, Chief
        Control Programs Operation Branch (MD-15)


        Attached is a copy of a letter directed to us by the State of New
        Jersey's Department of Environmental  Protection.   It requests  an
        EPA determination on what constitutes "ambient air" for a partic-
        ular air permit  application.   Kevin Doering explained this  issue
        to Dean Wilson of the Modeling Clearinghouse on June 2 and provided
        him with our preliminary determination.  He believe that, because
        the cogeneration facility  could  operate  independently  and will
        provide power to other sources outside of the Schering Corporation,
        property outside of  its  property  line  should  be reviewed for
        ambient impact.

        We would appreciate your  review  and concurrence or comment.   He
        would like  to be able  to respond  to Dr.  Berkowitz  within two
        weeks if possible.   Thank you for your help.

        Attachment
RESIGN II FORM 132O-1 (B/8S)

-------
                                    of Sfrm Srrsnj
                    DEPARTMENT OF ENVIRONMENTAL PROTECTION
                           BfVieiQN Of ENVIRONMENTAL QUALITY
                               CNOZ7.THENTON.WJl 0808
*..~~.                                  May 29' 198~                       WWJMMMJ
Dt HECTOR
 Conrad Simon, Director
 Air and Waste Management Division
 USEPA Region II
 26 Federal Plaza
 Kew York, SY  10278

 Dear Mr. Simon:

      We are  reviewing  an air  pollution  control permit  application  for  the
 proposed  EF  Kenilworth,  Inc.  (EFKI)  cogeneration  system  at  the  Schering
 Corporation facility in Kenilworth,  Union County.  Schering has entered into ' an
 agreement with EFKI to have EFKI supply the electrical energy and process  steam
 for  Schering*s*  manufacturing  plant  through  a  cogeneration  system  to •  be
 constructed on property leased by EFKI from Schering (see attached).   The leased
 property is within  the property  line of Schering's  Kenilworth facility.   The
 cogeneration system is to be built,  owned and operated by EFKI.

      We request  EPA's interpretation  of "ambient  air" (40  CFR 50.1(e))  with
 regard to the portion of the Schering  property that is not leased to EFKI.   In
 our air  quality modeling  analyses of  the emissions  from the  EFKI  facility,
 should we consider the property line to  be the boundary of the leased  property
 or the boundary of the Schering plant?

     .Please have EPA's determination forwarded in writing to William  O1Sullivan
 (609-984-6721) at your earliest convenience.  The resolution of this issue  will
 remove a major question in the review of this application.

      Thank you.

                                         Sincerely yours,
                                                                                  >
                                                                       '(f^
 JHB/TJ/df
 Attachment

 c:    H. Kortreich
      V. O'Sullivan
      J. Elston
      R. Dyba
      R. Craig

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                                                                                7.7-
EBASCO SERVICES INCORPORATED
160 ClUiMAttnM.LvndhurtLNJ 07071  (201)460-1900
                          Air Quality Evaluation
                       Approach and Modelling Protocol
                   For The Kenilworth Cogeneration Facility

 The following discussion presents an approach to the air quality evaluation
 of  a proposed cogeneration  facility (the "Facility") to be built, owned and
 operated in Kenilworth,  Hew Jersey by EF Kenilworth, Inc. ("EFKI"), a wholly
 owned subsidiary of Energy  Factors, Incorporated ("EFI"), a California corporation
 engaged In the business  of  developing, owning and operating electric and thermal
 energy production facilities  throughout 'the United States.

 The Facility is to be constructed on a site (the "Site") which has been leased
 by  EFKI from Schering Corporation.("Schering"),  a wholly-owned subsidiary of
 Schering-Plough Corporation ("Schering-Plough")  for a term of fourteen years
 (plus two renewal terms  of  ten years each) pursuant to a Site Lease between
 Schering and EFKI dated  as  of December 10, 1985.

 EFKI has entered into a  Turnkey Construction Contract with Ebasco Constructors
 Inc., dated as of July 29,  1986,for the construction of the Facility,
 which is projected to be completed on or prior to June  1988.

 The Facility will produce electrical energy and  process steam.  EFKI has entered
 Into a power purchase  agreement (the nPPAn)with Jersey Central Power and Light
 Company ("JCPiL")  dated  as  of May 20, 1986, for  the sale by EFKI of electrical
 energy from the Facility to JCP&L, which energy would be wheeled from the Site
 to  JCP&L by Public Service  Electric 6 Gas Company ("PSE&G").  EFKI has also
entered  into  an Energy Services Agreement (the "ISA") with Schering dated as of December
10,  1985, pursuant  to which EFKI will supply Schering with Schering's electrical
energy and  process steam requirements at its pharmaceutical manufacturing plant
located  adjacent  to the Facility Site.

-------
                                                                                7.7
pue to the favorable economies and energy conservation aspects  of the cogeneration
process, EFXX win be able to sell electrical  and thermal energy to Sobering
at prices which should enable Scherlag to realize significant savings in its
aggregate energy expenditures.  In addition, because Sobering will rely on EFKI
for its principal steam supply,Sobering will cease routine operation of its
boilers 3, 4 and S (the "Boilers").  (It  is anticipated that the air emissions
resulting froa the operation of the Facility will be significantly lower than
those for which the Boilers are currently permitted.)  The Boilers will be
maintained in a standby status to provide standby or supplemental process steam
to Sobering if required.

    1.0    PROJECT DESCRIPTION
           A.  General
               The Facility will-produce  25,068 We (net) vben  supplying
               40,000 Ibs/hr of 135 PSIG  steam.  The natural gas fired
               combined cycle cogeneration plant has backup capability
               to operate on number 2 distillate fuel oil during natural
               gas supply curtailment.   The Gas Turbine Generator (CTC)
               package will be powered by a GE Model IM2500-33  turbine,
               that is water injected for HOx control.  The Beat Recovery
               Steam Generator (HRSG) is  a non-fired 3 pressure level unit
               capable of a maximum generation of approximately 70,000
               Ib/hr of steam.  Steam from the HRSG will operate a Steam
               Turbine Generator  (STG).  The STC will be a single pressure,
               multi-value, multi-stage,  automatic extraction condensing
               unit, providing a minimum process extraction of approximately
               17,000 Ib/hr.   Both the GTG and the STG will be equipped with
               13.8 K7 generators.

               The Facility has a nameplate rating of 29,500 kK  while
               extracting a minimum flow of 17,000 Ib/hr of steam.
                                    -2-

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                                                                             7 -r
  nATE:


SUBJECT:


  FROM:


    TO:
          UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                            REGION II
 JUN t 9 19*'

Ambient Air Issue from New Jersey
Department of Environmental Protection
William S. Baker,
Air Programs Branch
         G. T. Helms, Chief
         Control Programs Operation Branch  (MD-15)
         Attached is a copy of a letter directed to us by the State  of  New
         Jersey's Department of  Environmental  Protection.   It requests  an
         EPA determination on what constitutes  "ambient air" for a partic-
         ular air permit application.   Kevin Doering explained this  issue
         to Dean Wilson of the Modeling Clearinghouse on June 2 and provided
         him with our preliminary determination.  We believe that, because
         the cogeneration facility  could  operate  independently  and will
         provide power to other sources outside of the Sobering Corporation,
         property outside of   its  property  line should  be reviewed  for
         ambient impact.

         We. would appreciate your review and concurrence or comment,   we
         would like  to be  able  to  respond to Dr.  Berkowitz  within  two
         weeks if possible.   Thank you for your help.

         Attachment
 RGQION II FORM 132O-1 (9/88)

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#,  z^  r         UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
I r
-------
                                                                        y/^
                                    of 2
                    DEPARTMENT OF ENVIRONMENTAL PROTECTION
                           DIVISION Of ENVINONMINTAL QUALITY
                                  7.TMCNT
 «»""jnTZ.p«.a                            May 29, 1987                       («oi, SM.SMJ
DIRECTOR
 Conrad Simon,  Director
 Air and Waste Management Division
 USEPA Region  II
 26 Federal Plaza
 New York,  NT   10278

 Dear Mr. Simon:

      We are  reviewing  an air  pollution  control permit  application  for  the
 proposed  EF   Kenilworth,  Inc.  (EFKI)  cogeneration  system  at  the  Schering
 Corporation facility in Kenilworth, Union County.   Schering has entered into ' an
 agreement with EFKI to have EFKI supply the electrical energy and process  steam
 for  Schering'»  manufacturing  plant  through  a  cogeneration  system  to   be
 constructed on property leased by EFKI from Schering (see attached).  The leased
 property is within  the property  line of Schering's  Kenilworth facility.   The
 cogeneration  system is to be built, owned and operated by EFKI.

      We request  EPA's interpretation  of "ambient  air"  (40  CFR 50.He))  with
 regard to the portion of the Schering  property that is not leased to EFKI.   In
 our air  quality modeling  analyses of  the emissions  from tr.e  EFKI  facility,
 should we consider the property line to  be the boundary of the leased  property
 or the boundary of the Schering plant?

      Please have EPA's determination forwarded in writing to William  0'Sullivan
 (609-984-6721)  at your earliest convenience.  The resolution of this issue  will
 remove a major question in the review of this application.

      Thank you.

                                        Sincerely yours,
                                              i.  Berkowitz, Ph.D.
                                        Director

 JHB/TJ/df
 Attachment

 c:   H. Vortreich
     W. O'Sullivan
     J. Elston
     R. Dyba                             .... •*.•,.   ...  ..
     8. Craig

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                                                                               7.7
EBASCO SERVICES INCORPORATED
mCAuMAvwiuo.Lynenunt.NJ 07071  (201)460-1900
                           Air Quality Evaluation
                       Approach and Modelling  Protocol
                   For The  Kenilwerth  Cogeneration Facility

 The following discussion presents an  approach to the air quality evaluation
 of a proposed cogeneration facility (the "Facility") to be built, ouned and
 operated la Xenilworth,  Rev Jersey by EF Kenilworth, Inc. ("Em"),  a wholly
 owned subsidiary of Energy Factors, Incorporated ("EFX"), a California,  corporation
 engaged in the business  of developing, owning and operating electric and thermal
 •nergy production facilities throughout the United States.

 The Facility is to be constructed on  a site (the "Site") which has been leased
 by EFKE from Schering Corporation.("Sobering"),  a wholly-owned subsidiary of •
 Schering-Plough Corporation ("Schering-Plough")  for a tea of fourteen  years
 (plus two renewal tens  of tea years  each)  pursuant to a Site Lease  between
 Schering and EFSZ dated  as of December 10,  1985.

 EFKX has entered into a  Turnkey Construction  Contract with Ebasco Constructors
 Inc., dated as of July 29, 1986.for the construction of the Facility,
 which is projected to be completed on or prior to June  1988.

 The Facility will produce  electrical  energy and process stem.  EFQ has entered
 Into a powez purchase agreement (the  "PPAn)with Jersey Central Power and Light
 Company ("JCP&L") dated  as of May 20, 1986, for the sale by EFKZ of  electrical
 energy from the Facility to JCP&L, which energy would be wheeled from the Site
 to JCP&L by Public Service Electric & Gas Company ("PSE&G").  EFKX has  also
 entered into an Energy Services Agreement (the "ISA") with Schering dated as  of December
 10, 1985, pursuant to which EFSX will supply  Schering with Schering's electrical
 energy and process steam requirements at its  pharmaceutical manufacturing plant
 located adjacent to the  Facility Site.

-------
                                                                                 7.7

pue co Che favorable economics and energy conservation aspects of the cogeneracion
process, EFKX will be able to sell electrical and thermal energy to Schering
at prices which should enable Schering to realize significant savings in its
aggregate energy expenditures.  In addition, because Schering will rely on EFK1
for its principal steam supply,Schering will cease routine operation of its
boilers 3, 4 and 5 (the "Boilers").  (It is anticipated that Che air emissions
resulting from Che operation of the Facility will be significantly lower than
those for which the Boilers are* currently permitted.)  The Boilers will be
maintained in a standby status to provide standby or supplemental process steam
to Schering if required.

    1.0    PROJECT DESCRIPTION
           A.  General
               The Facility will-produce 25,063 kWe (net) when supplying
               60,000 Ibs/hr of 135 FSZC steam.  The natural gas fired
               combined cycle cogeneration plant has backup capability
               to operate on number 2 distillate fuel oil during natural
               gas supply curtailment.   The Gas Turbine Generator (GTG)
               package will be powered by a GE Model U12500-33 turbine,
               that is water injected for NOx control.  The Beat Recovery
               Steam Generator (BRSG) is a non-fired 3 pressure level unit
               capable of a maximum generation of approximately 70,000
               Ib/hr of steam.  Steam from the HRSG will operate a Steam
               Turbine Generator (STG).  The STG will be a single pressure,
               multi-value, multi-stage, automatic extraction condensing
               unit, providing a minimum process extraction of approximately
               17,000 Ib/hr.   Both the GTG and the STG will be equipped with
               13.S K7 generators.

               The Facility has a nameplate rating of 29,500 kK  while
               extracting a «^nl*«" flow of 17,000 Ib/hr of steam.
                                   -2-

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8. PSD

BACT
                                09
                                C0
                                O

-------
    „
    '\
     J   UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                       WASHINGTON. D.C.  20460
                                                                   C}
                                                       8.2
                                                 OFFICE OF ENFORCEMENT
MEMORANDUM

SUBJECT:  Contingency Plan for FGD  Systems  During  Downtime
          as a Function of PSD

FROM:     Director, Division of Stationary  Source  Enforcement

TO:       G.T. Helms, P.E. Deputy Director
          Air and Hazardous Materials  Division


    .This is in response to your request  dated November 9, 1977,
asking whether PSD approvals for new sources  using FGD
systems can be .conditioned to require  a contingency plan for
periods when the FGD system is not  functioning.

     PSD and SIP regulations require the  establishment of
emission limitations which will be  sufficient to ensure non-
degradation of air quality and attainment and maintenance of
NAAQS, respectively.  In order to assure  this at all  times
it is necessary for the source owner or operator to be in
compliance with all emission limitations  at all  times.  For
this reason, the Agency in the April 27,  1977 F.R. (42 FR
21472) promulgated a requirement outlining  our position on
SIP malfunctions.  In the preamble  to  those requirements it
is stated, '...the Administrator has determined  that  the
automatic granting of a regulatory  exemption  (permit  in this
case) for these periods of excess emissions is not a  suitable
renedy."  From this language, therefore,  it would  not be
wise to include within the PSD permit  a specific exemption
froa the requirements during periods of "upset"  or "malfunction.,

     We do, however recognize that  some relief should be
afforded during certain upset situations.   If the  source
were allowed an automatic exemption it would  encourage the
source to claim, after every period of excess emissions,
that an exemption is warranted.  Therefore, the  only  enforceable
means available to the Agency in dealing  with all  emission
excursions-be they potentially due  to  malfunctions or otherwise-
is to issue notices of violations with the  source  being
given an opportunity to prove that  the violation was  due to
an unavoidable situation of upset or malfunction.

-------
     In response to the particular  items  raised  in  your
      I would not recommend specifically  addressing the
system by-pass.  That is,  if a source elected  to have  a  by-
pass capability it could do so, however it would in no way
limit our abilities to enforce the  emission  limits  during
those periods when the emissions were not routed through the
control device.  We would  then exercise our  enforcement
options to address the sources failure to satisfy the  prescribed
emission limit.

     While I would not recommend requiring a malfunction
contingency plan, I would  alert the'source that  any inability
on their part to maintain  their emissions consistent with
the applicable regulation  may result in an enforcement
action initiated by EPA.   This would apply to  requirements
necessary to attain and maintain the NAACS as  well  as  PSD.

     To facilitate this enforcement approach it  will require
the issuance of a Notice of Violation (NOV), although  this
will not be necessary for  NSPS or NESHAPS, for every period
of excess emission ascertained by your Office.   After  issuance
of the NOV the Region should consider any information  developed
by the source which more fully explains the  circumstances of
the violation and any good faith efforts  of  the  owner  or
operator of the source to  comply and in determining whether
further. Agency action is appropriate.

     If you have any further questions or comments,  please
contact Rich Biondi (755-2564) of my staff.
                              Edward E.  Reich
cc:  Dick Rhoads, CPDO
     Hixe Trutna, CPDO

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                   ENVIRONMENTAL PROTECTION AGENCY


                                                         4
                                                     /  y t
                              JUM  22

      .'.:.-n a A HO UM

      SV5JSCT:  IPALCO's Prooosed  Patriot,  Indiana  Generating
                Station

      FROM:     Director
                Division, of Stationary  Source  Enforcersent

      TO:       Dale S. Sryson, Acting  Director
                Enforcement. Division
                Region V

           This 1s in response to  your  .-:ar:o  of June 1,  1973,
      concerning issuance of  a final  PSD  permit  to  the
      Indianapolis Power and  Light Company  (IFALCO) for the
      proposed Patriot Generating  Station.

           As a new fossil-fuel fired steasi  electric plant with
      potential emissions greater than  ICC tons/year and allow-
      sbls emissions of greater than  53 tons/year,  thi  Patriot
      Station will be subject to  bot:i first-  and  second-tier
      PS2 ruvirjs including application jf SACT.

           Included in IP.'.LCO's PSD permit application  nast
      be « ^ancnstration that enissions from the Patriot Statian
      viill be controllad to a level which raflscts  application of
      ."ACT and which will not causa the applicable  :;AAQS or  PSD
      irtcrenents to be exceeded.   Fundamental  to such a demon-
      stration ara plans and  specifications  for  control  equip-
      r*nt.  ."anufactyrers' claims of control  efficiency should
      12 suppcrt-ed by design  specif 1 catior.3.
           Specific questions  raised  by  your Reno  ara  addrass3d
      bela*.<.

           1.  •; -   Can U.S.  EPA  approve  !?ALCL*3 ^-2lication
      •".-.-,- approval to ccnstrjct  conditionally in  s.icj-,  ;» nannar
      t: -2* construction could  not  coar^nca  until  c«2si;jn specifi-
      cctians becase available for the 01"  efficiency  scrubber
      anri y.s. EPA reviewed  and  approved the scrubs-jr  systes?
      This position was taken  for  the preliminary  approval.

           A - EPA's final approval  to construct  should
                                CONCURRENCES
••A roAM '=as-:

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net be issued until IPALCO has suormted design specifi-
cations for tfca proposed scrubbers.  Final approval
ccnriitioned en submittal of specifications is net  apprcpri-
cta in this case.  OSSE is confident that design specifi-
cations for high efficiency scrubbers are. avaiTable at
this tine.

     2.  Q -   To what extent must IPALCO demonstrate
thst the necessary scrubber systars will be available
before U.S. EPA can issue a conditional approval
as expressed in 1. above?

         A - See answer to question ?1, above.

     3.  Q -   Can U.S. EPA reject the scrubber system
IPALCO proposes and in fact require a dlfferant system
in a final approval?  Or, must the application be
rejected and approval denied?

     A - The responsibility for developing an
a-Jcouate control strategy lies with IPALCC.  EPA should
iiisapprove the permit application  if it is detrained
that the proposed scrubber system  is not adequate  to
ensure protection of -JAAQS or the  PSD increasnts or
does not represent SACT.  A new application  pro-
posing an alternative control system could,  of course,
be submitted by IPALCO subsequent  to any EPA permit
disapproval.

     The preamble to the new PSD. regulations specifically
addresses issuance of permits in' situations  wh^re  sources  are
constructed in phases.  If each phase can be operated
independently of other phasas, es  would be tiia case in  this
instance, a PSD parsiit may be issued for rh«» artire source,
provided the following conditions  arc specif ioi?:   1} tr.s
csnstruction of the first phase nust "cbmnencti" vnthin
1- aonths of persit issuance, 2} construction of aach
additional phase nust commence within 18 mo-.iths of the  date
acs.-oved 1n the persit, 3). breaks  in construction  of
greater than 1C months mist not occur in any phase of  the
project, and 4) BACT for the later phases of the project
~cy be reassessed up until ths tiss it is no longer econo-
mically feasible for the source to change its control
strategy.  At the time the original peroit  is issued,  the
T:ACT determinations which are subject to ra-evaluation
should be specified.

     Your ,-nejr.o points out  I?f\LCTs failure  r.o -rovidc  for
:"ir-2  scrubbing capacity to be -j:L-d in t!-e  ava-:  cf a

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                                                              S.3
scrubber s«2l funct i on or partial shutdown for routine nsair.-
tenanca work.  Although the SIP regulations do not allow
for excess emissions, aven duriny zariods of ralfunction,
the PSO permit cannot be disapproved on the basis that
baclcuo controls are. not planned.  It is the source's option
to prevent excess emissions using control techniques
other than backup equipment (i.e., shutdown, decreased
production rate, etc.).  Periods during which excess
emissions occur will, of course, bs considered violations
of the applicable SI? and grounds for enforcement action
including penalty assessment .

     I would TUe to point out that, according to the ne*
PSD regulations, the Governor of any affected State should
be notified prior ta any action by EPA regarding a source
which is expected to consume the entire remaining increment.

     If you have any questions on this natter, please
contact Libby Scopino at 755-2564.
                        Edward £. Saich
cc:  riiks Trutna
     Petsr Wyckoff
EN-341:L5copino:nb:Rm3202:X525S4

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                 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

•-««   jj;,   11978

 sen  IPALCG's  Proposed  Patriot,  Indiana Gsnarating Station


      Dale  S. Sryson,  Acting Director
      Enforcement Division

  TO:  Edward E.  Reich, Director
      Division of Stationary Source Enforcement (EN-341)

      I request  your assistance  in making a  final determination regarding tie
      PSD application  submitted  by  Indianapolis Power and Light Company (IPALCO)
      for the proposed Patriot (Mexico Bottom) Generating Station.  The primary
      issue Is the  use of a high efficiency  scrubber system.  The approval  or
      disapproval of this system should be considered In light of the Agency's
      position on scrubbers, and  requires examination for national policy
      Impacts.

      Background

      IPALCO has applied to P^gion V for approval to construct the Patriot
      Saner at ing Station.  This  power plant  would consist of three 650 M!1 units
      scheduled  to  go on-line In  1985, 1937  and 1989.  Preliminary approval was
      granted In February,  1973,  and a public hearing- was held on April 20, 1973.

      dasad upon the air quality analysis submitted by  IPALCO, it has been deter-
      mined that, for  the proposed power plant to meet the  limit of the 24-hour
      sulfur dioxide Class  II increment, the sulfur dioxide emission limit for
      the plant  must be  0.552 Ibs/miilion 3TU heat  Input.  To meet this emission
      limit, IPALCO has  proposed using a Iime/limestone scrubber with a 9\% re-
      moval  efficiency.   IPALCO  claims that  this type of scrubber will be avail-
      able  for  Installation by the mid-1980's.  Coal with a sulfur contsnt as
      high  as 3.47? will be burned at the Patriot plant with no plans by IPALCO
      to treat  the  coal  prior to combustion  to reduce the sulfur content.  IPALCO
      has not offered  to blend  low sulfur coal with the regular fuel mixture in
      order to reduce  sulfur dioxide emissions. Additionally,  IPALCO has no plans
      to  install spare scrubber  modules and  had planned to  install a scrubber by-
      pass  (tha  bypass was pYohiSitad  In the preliminary approval).  Support data
      for the scrubber efficiency consists solely of letters from scrubber manu-
      facturers  attesting to but not guaranteeing that a 9iJ efficiency will be
      available  In  the 1930's.   IPALCO has also used U.S. EPA  documents supporting
      scrubber  technology as evidence to support their application.

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                                   -2-

1ssues

I.  Can U.S. EPA approve IPALCO's application for approval  to con-
    struct conditionally In such a manner that construction could
    not cofltnence until design specifications becane available far
    the 9IJ efficiency scrubber and U.S. EPA reviewed and approved
    the scrubber system?  This position was taken for the preliminary
    approval.

2.  To what extent must  IPALCO demonstrate that the necessary scrui&er
    system will be available before U.S. EPA can issue a conditional
    approval as expressed In I. above?

3.  Can U.S. EPA reject the scrubber system  IPALCO proposes and In
    fact require a different system in a final approval?  Or, must
    the application be rejected and approval denied?

It should be pointed out that, white U.S. EPA has been strongly com-
mitted to the use of scrubbers for many years, the availability of,
and U.S. EPA commitment to, high-efficiency  scrubbers is very recant.
Furthermore, nigh efficiency Iime/limestone  scrubbing may not be
commercially demonstrated In the United States.  Region V  is concerned
that sulfur dioxide control at the  Patriot Station Mill be  Inadequate to
prevent violations of the 24-hour sulfur dioxide Class  II  Increment  in
the vicinity of the station.

If you have any need  for further 'information on this matter, pleass
contact i*-. Bruce V-rnar at  E3I2) 353-2035.

Me would appreciate your consideration of these  issues as expeditiously
as possible.  Region  V must make a  final PSO determination  by July (, 1978.
                                       Dale  S.  Bryson

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*>•••• *!-
         UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

    f                  WASHINGTON. D.C. 20460
                                                 OFFICE OP ENFORCEMENT

   MEMORANDUM

   SUBJECT:  Conditional PSD  Permits

   FROM:     Director
             Division of Stationary Source  Enforcement

   TO:       Darryl Tyler,  Chief
             Standards  Implementation  Branch
             Control Programs Development Division

        My staff has been  in  contact with a number of  the
   Regional Offices regarding the  issuance  of conditional
   PSD permits and has  found  little consistency among
   the Regions on the amount  and detail  of  information on
   control equipment which  must be submitted by a source
   before a PSD permit  can  be issued.  The  purpose of  this
   memorandum is to bring  to  your  attention the need for
   guidance on whether  and  under what  conditions,  conditional
   permits may be issued.

        DSSE became involved  with  this issue when Region V
   requested, in a memo dated June 1,  1978, (copy attached)
   a determination as to whether a new power generating unit
   could be issued a PSD permit conditioned on the submit tal
   of design specifications for the scrubber which would be
   used to control SO-  emissions.  The permit application
   contained only a manufacturer's guarantee as to the control
   efficiency which would  be  achieved.  Ninety-one percent
   efficiency, in this  case,  would be  necessary in order to
   ensure protection of the applicable SO.  increment and would
   reflect 3ACT.  We responded to  the  Regional Office  on
   June 22, 1978, {copy attached)  stating that scrubber de-
   sign specifications  should be submitted  by the source prior
   to issuance of any PSD  approval.

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     Subsequent to the Region V determination,  we were
informed that the Region IV Office has,  in  the  past,  issued
conditional permits to power generating  units based  solely
on manufacturer's guarantees of control  efficiency.   On
September 4, 1978, a conference call with Regions IV, V,
and DSSE was held to discuss the approach each  Regional
Office has been taking with respect to issuance of con-
ditional permits and to attempt to establish some uniformity
in the type of control device specifications required until
such time as headquarters guidance is issued.   We found  that
the policy in Region IV has been to issue PSD permits based
on manufacturer's guarantees of efficiency  and  a commitment
by the source that BACT emission limitations will be met.
The permits are conditioned on the submittal of more
detailed information prior to commencement  of construction
of the control equipment.  Region V generally has required
more detailed information including such items  as the type
of system, manufacturer's guarantee of efficiency, gas
flow, pressure drop, reliability and stoichiometry as a
minimum before a permit can be issued.

     This office is of the opinion that  conditional  permits
may be appropriate in certain instances  where final  design
specifications cannot be obtained by a source at the  time
of permit application but that enough information should
be submitted to allow the reviewing authority and the
public to determine that the proposed control equipment  will
adequately reflect BACT.  Such permits should be conditioned
on submittal of detailed design specifications  prior  to
commencement of construction.  Allowing  sources to obtain
permits based solely on a manufacturer's guarantee of
efficiency and a commitment to meet BACT levels would
defeat the purpose of preconstraction review.

     The New Source Review Task Force has prepared a paper
discussing the merits of conditional permits and the detail
of information upon which issuance of conditional permits
should be based.  We suggest that since  this is a BACT
related issue, OAQPS should take the lead in developing
guidance with input from the Regional Offices on the NSR
Task Force's suggestions.  DSSE will be  happy  to assist
in any way possible.  I would like to stress the need for
uniform guidance and the urgency of this need.

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     Please contact Libby Scopino  (755-2564) of my  staff
if we can be of any assistance in  expediting the develop-
ment and issuance of this guidance.
                         Edward Reich

Attachments

cc:
Cheryl Wasserraan, OPS
Bill Burch, OAQPS
Linda Murphy, Region I
Ken Eng, Region II
Glenn Hansen, Region III
Winston Smith, Region IV
Steve Rothblatti Region V
Don Harvey, Region VI
Bob Chanslor, Region VII
Dave Joseph, Region VIII
Bill Wide/ Region IX
Hike Johnston, Region X

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                                                                                  IX
ECT
     bACT Ssseline for Louisa Ganera ting Station
                                                                                8.5
     Michael  A.
       licy Development Section, SIB, CPOO

     Gale A.  Wright, P.E.
 TO:  Chief, Technology Analysis Section, Ragion VII
          In your aieno of October 13, 1973, (enclosed) you asked for assistance
     in determining the BACT baseline for the proposed construction at tr.e Leu-'52
     Generating Station of the Illinois G&s and Electric Cor.pany (IIGi).  Spcd-
     will  not apply (i.e., the boiler was ordered in the spring of 1978,.

          .Since you have otter-rained that a corrplete aoplicalon .as rot received
     until fay 31, 137|, I tgres with your statement thai the ne\v PED regula-
     tions activating S&cticn 165 of trie recant Act Amencrant: till apply.
     As you know, under the nev/ PSD requirements, applicable sources rnL'st
     apply BACT.  The resulting EACT determination sust ca msia on a cass-iy-
     case  basis taking into account several considerations inducing scc:o-
     econor.ic costs and the anticioatad environrr.anza'i ar.d energy iTOacts.  In
     no event v.-m EACT resresent less control than providea by the aps'i-icab'.c
     NSPS.  Thus, as a mir.i-.um, the Louisa Station must at 'least rceet the old
     NSPS  as provided under the previous PSD regulations.

          More importantly, case-by-case 2ACT say well require su3Sta.it*illy
       re  control than the old ,'!SFS.  Ths accsptsd practice withir, £?A is to
     make  the initial  presumption that all power plant asolicants sublet to
     the new PSD regulations can accomplish 6,-m'ssion recucticns at least
     equivalent to those required linear the proposed NSPS revisions.  Th-'s
     generally means that such sources will bs expected to install a continu-
     ous sulfur rencvcl systar, in t.ns case of SO., control.  Although tha
     source may have filed a complete application oefore tns date of :.S?S
     proposal, information from well controlled sources that forred tha casis
     for the MSPS revisior, was available v.ell before IIGE's a;ol;cation vras
     filed.  Therefore, it is reasonable to expect that tha Louisa Gsna.-atirg
     Station should plan to install a sulfur re-oval syster v.-.nich cpsratss
     at 85i or higher control efficier.cy on a 2^-hsur basis unless thsy can
     present evidence of unusual circumstances vihich justify less control.

          If I can be on any further assistance on the natter, pleasa feel
     free  to call on me.

     Enclosure

     cc:  R.  Rhoads
          D.  Tyler
          0.  Dunbar
          R.  Biondi
          NSR Contacts, Regions I-X
      • {8...

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;ECT. -Ceit Availaole Zor.rr-zl ~echno:oqy  '£AC:';  'Jetersi nation                   3.5
      Gale Ar-T, P.E.
FROM.  Chief, Tcchrology Analysis Section, Air  Suoport  Branch
      Air and KazareoLS "aerials Oi vis ion

  T0«  Michael Trutna
      CPDD, (KO-15J
      Environrsntal Protection Agency

      Region VII has in process a prevention of  significant deter: or at: en (PSD)
      perir.it application frcm the Icv/a-r.linois  (Us  and Electric Cc~5r.y,
      Davenport, Ia.
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                    PRELIMINARY BACT INFORMATION*

A.  GENERAL INFORMATION

     l.a.  Name of Power Plant and Parent Company
       b.  Name, address, phone no. of company contact
     2.  Location of Source

         a.  City	  b.   State 	

B.  STEAM GENERATOR DATA

     1.  Type of boiler (manufacturer,fiif known)
     2.  Size of boiler (heat input 10° Btu/hr)

C.  FUEL DATA

     Provide long term averages and ranges for specified short term and
long term averaging periods for the following (1-6):

     1.  Primary fuel (coal or oil)
     2.  Start up fuel
     3.  Alternate fuels
     4.  Brief description of what fuels will be fired including
         estimated percentage heat input
     5.  Solid fuel data (all solid fuels to be fired)
         a.  Ultimate analysis (as burned) % by weight sulfur
             also include chlorine, ash, moisture and gross heating
             value (Btu/lb)
         b.  Estimated resistivity of particulate as a function of gas
             temperature (if known)
         c.  Estimated ash analysis (X by weight - dry)
     6.  Particle size analysis for ash
     7.  Liquid fuel'data (all liquid fuels)
         a.  Type and grade
         b.  Density (Ib/gaTlon)
         c.  Gross heating value (Btu/gallon)
         d.  Ash content (percent by weight)
         e.  Sulfur content (percent by weight)
         f.  Nitrogen content (percent by weight)
         g.  Moisture (percent by weight)
         h.  Will additives by used?  If so, furnish data on chemical
             composition and approximate quantitites (percentage of
             total fuel to be used).
     8.  Is a contract signed for the coal?  If no contract is signed,
         we would need the information for questions 1-6 for all coals
         that are being contemplated for usage and percentage usage where
         coals are to be blended.

*Motc that not all information may be available in all cases.  Information
 requirements should be adjusted as aporopriate to fit the circumstances
 of the aoplicant at time of permit application.

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D.  PRECIPITATOR DATA
Part I - Preliminary design or design criteria
     1.  Design emission rate (Ibs/mBTU) for participate matter (before
          and after proposed controls)
     2.  Total gas flow from steam generator at full load and at ESP
          operating temperature (ACFM)
     3.  ESP operating temperature (±F) range
     4. 'Number of separate ESP modules under consideration
     5.  Approximate specific collection area (SPA)
     6.  Number of separate electrical sections for each module under
          consideration.
     7.  Type of power control and instrumentation
     8.  Estimated linear velocity of gas through each module at full
          load (actual feet/sec) or range of acceptable velocities
     9.  Briefly describe techniques used to ensure uniform linear
          velocity within ESP.
    10.  Nature and-terms of performance guarantee
    11.  Briefly describe system used to remove and convey collected
          ash to final disposal.
Part II - Reference plant example
     1.  General flow diagram for the precipitator
     2.  Provide design criteria or preliminary engineering data for the
          major elements of'the ESP for the particular plant under
          consideration or a similar plant where the major elements have
          been designed and detailed specification are available.

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                   UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
  OATE0£C 2-2 1378
SUBJECT:   BACT Information  for Coal-fired
                                                               Hi
         Walter C.  Barber, Director II fr\«r   \  &V        "'
         Office of  Air Quality  PlannWg^aVd1 Standards  (MD-10)

    TO:   Director,  Air & Hazardous Materials Division, Regions I-X

              Currently, there  seems to  be  some confusion regarding how much
         infortstion  is required  in order to make BACT dsterminations for power
         plants.  Such confusion  has created situations where one Region may have
         conditionally approved a power  plant's construction plans while another
         would not.   This "nemo  is intended  to orovide an exanpla of the type and
         amount of  information  required  from power plant applicants in oroer to
         determine whether the  source is applying BACT.

              Under the new PSD regulations,  BACT is necessarily decided on a
         case-by-case basis after weighing  relevant socio-economic costs and
         environmental  impacts.   Consequently,  information must now be subr.itted
         by a  PSD source describing its  plans for control equiDnent in sufficient
         detail  so  as to define the plant-specific 3ACT limit.  As indicated in
         separate guidance for  making case-by-case BACT determinations, the
         utility is also required to demonstrate that the proposed controls are
         not less stringent than  the applicable NSPS and that rare stringent
         control  alternatives are not appropriate.
        more detai	
        relieve  the source  from  its rcsponsioility to demonstrate to ths Agency
        that it  is applying BACT, it does act to streamlins the review process
        and minimize the delays  incurred by power plants which carr.ot supply
        ultimate equipment  designs and blueprints at the tints that a permit to
        construct is secured.  This system will also provide the utility with
        sufficient flexibility to take advantage of expected improvements in
        control  technology.

             The key question then becomes how nuchjnforration is necessary tc
        establish the BACT  Timit during the initiaf'precoRscructigr. review. In
        glneraTjjhe ™fon«tion_shoind inc 1 ude tiie prsTimir.a~ry~"engin2-:r;ng and
        'plant design critefiL"whjch,»/ill_cgn'st'itut'e the basis for soliciting anj2
        reviewing vender proposals for control ecuipmant.  In addition, an
        'example  shouTefoe "Included which speciTias how the preliminary design
        criteria would be aoplied to the particular plant in question or to a
        similar  facility where the design has been completed and the exact
        detailed specifications are available.  Where a utility has not settled
        on a single control system, it may submit alternatives for review.
CPA ronw i3io-» mev. *7ti

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      Attachment A is  provided  as  an  example  of the type of information
 which  can  be  used both  to  define  a specific  BACT emission limit and to
 assess whether the plant can be reasonably expected to  meet this limit.
 jower  plants  can be permitted  when this  initial  information confirms
      BACT  win  be employed and that  the' applicable 'a'jfib1eni"onstrain'ts
 will be met.   This  approacn must  be  condi ti oned. on  the__companyls_J aigr_
 submission  of  final detailed  engineering  design  specifications, prior  to
 commencement ofc'o'hscructT on  or the  control  equl'tbant.   While  the  final
 engineering design "and vencor specifications will vary  frc"  ths preliminary
 information, the utility must show it  to  be  equivalent  in  performance
 and reliability established as BACT  in the  initial  determination.   These
 variations  may include basic  chances in equipment design such  as a  shift
 from an ESP to a baghouse, a  change  from  a  lime/limestone  scrubber  to a
 regenerable scrubbing system  or a cnange  in  the  design  approach to
 insuring reliability.

      All of the information outlined in Attachment  A may not be available
 and is not  required in all instances.   The reviewing authority should
 seek only those data elements which  are necessary to support air engineering
 judgment' that""fRe~piF5pbse"d""system wl il l  perform reliably at the specified
 emission rates^

      Since  the submission of  the final  engineering  design  specifications
 is a condition of the permit, this would  not constitute a  reopening of
 the permit  process, and I do  not see the  need for an opportunity for
 public coraent on this material.  However, I do  recorrgjgnjLtha t^tbe
 approval notice contain the location. and_  approximate .time  period in'
 which this  final design information  woufd be available'."'

      The above guidance represents some change for  several Regions.
 Therefore,  I am recuesting that during  1979 you  submit  to  OAQPS your
 BACT determinations for SO? from coai-fireo pov.-er pTch'trTtogsth'ef'with
 the applicable BACT i nf ormation" ident'if ie'd"in' Att'kcnmgn"t"A) for review
 pric'P"to your  preTTminary detenm natTofT  I? some of your States are"
"making these SACT determinations,  I  asjfthat you send us the appropriate
 BACT information before they make their final determination.   The above
 information should be sent to Kike Trurna (529-5497 j who will  ccora-ina-s
 OAQPS 's aetiviti e s_rega rd i nq crtese oetermlnanons in 'the nc-ar  future.
 Suggestions on additions or modifications to" this guidance also  should
 be addressed to Mr.  Trutna.

 Attachments

 cc:  Director. Enforcement Divisions, Region I-X
      D. Hawkins
      R. Rhoads
      H. Janes
      E. Reich
      E. Tucrk

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                                                                       8.7
E.  BAGHOUSE DATA
Part I - Preliminary design or design criteria
     1.  Design emission rate (Ib/mmBtu) for participate matter (before
          and after proposed controls)
     2.  Estimated total gas flow from steam generator at full  load and
          at baghouse operation temperature (ACFM)
     3.  Baghouse operation temperature (±F) range
     4.  Number of separate baghouses
     5.  Number of isolated compartments per baghouse
     6.  Design criteria for air to cloth ratio or  range of acceptable
          ratios (Cloth area divided by total  ACFM)
     7.  Cloth description
     8.  Type of bag cleaning under consideration and subsequent  cleaning
          controls
     9.  Strategy for detecting and replacing  faulty bags
    10.  Description of ash handling and disposal system
    11.  Nature and terms of performance guarantee

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Part II - Reference plant example

     1.  General  flow diagram for  the  baghouse

     2.  Provide  design criteria or preliminary engineering data  for the.
          major elements of the baghouse for the particular plant under
          consideration or a similar plant where the above elements  have
          been designed and detailed specifications are available.

F.  SULFUR DIOXIDE SCRUBBER DATA

Part I - Preliminary design or design  criteria

     1.  Design emission rate (Ib/mm Btu)  of SO- (before and after
          proposed controls)
     2.  Design data or criteria for the scrubber modules to include:
          - scrubber type (TCS, spray  tower, etc.)
          - absorbent type
          - possible scrubber liquor additives (e.g., mg)
          - prescrubber design criteria, or acceptable ranges for 1/g,
            inlet and outlet chloride,  etc.
          • design criteria for acceptable ranges for inlet and oulet
            gas flow and temperature and volume percent H^O, 02,  and SO*
          - specific design criteria or acceptable ranges for fiquid/gas
            ratio
          - estimated scrubber gas velocity
          • design criteria or acceptable range for scrubber inlet and
            outlet pH
          - design criteria or acceptable range of pressure drop  across
            the scrubber (inches of H«0)

     3.  For turbulent contact absorber (TCA) also supply:
          • design criteria or acceptable ranges for diameter of  spheres
          - design criteria or acceptable ranges for the height of
            sphere in TCA
          • design criteria or acceptable ranges for number of grids or
            screens in TCA

     4.  Indicate total number of  scrubber modules and number of  spare
          modules during maximum boiler loading.

     5.  What special precautions  will  be taken with module internals
          and other components (pumps,  mist eliminators, fans, etc.) to
          ensure  that corrosion, scaling,  and plugging does not cause failure
          of the  systemv

     6.  What special precautions  will  be taken with the control
          systems, e.g., spare probes,  probe site location, probe sheaths,
          backup  instrumentation, to ensure that failure will not lead to
         'excess  emissions or fouling  ov components via scaling?

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                                                                         3.7
     7.   How will  other key variables, such as process stochiometry,
          liquid to gas ratios (1/g),  etc.,.be monitored to ensure
          good operations?

     8.   Indicate which key components of the scrubber will be spared,
          e.g., pumps, fans, nozzles,  etc.

     9.   Location and mechanism of reheat, auxiliary fuel  requirements,
          and percentage of exhaust gas reheated.  If reheat will  not be
          performed, indicate what measures are being taken to eliminate
          stack corrosion or provide data to verify that stack corrosion
          will not be a problem area.

    10.   Outline routine maintenance and inspection procedures for the
          scrubber system hardware to ensure continuvus and reliable
          scrubber performance.

    11.   Describe the general design standard for the material to  be  used
          and type of mist eliminator system and describe  the techniques
          under consideration to guarantee uniform gas distribution across
          the mist eliminator and to the scrubber modules.

    12.   Nature and terms of performance guarantees

Part II  - Reference plant example

     1.   General flow diagram of the scrubber system including mix tanks
          prequench section, scrubber modules, mist eliminator and reheat.
          General  design standards for materials to be used to construct
          above elements.

     2.   Provide design criteria for the najor scrubber and system
          components (e.g., pumps, tanks, alkali handling  systems, etc.)
          for the particular plant under consideration or  a similar
          plant where the above items have been already designed end
          detailed specifications are available.

G.  Other Sulfur control methods*

     I.   Description of control method

    II.   Amount of sulfur removal credit

*These "other sulfur control methods" are those designed to augment S02
scrubbers in order to achieve a given rate of S02 removal.  An example
of such a method would be coal cleaning.

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                                                                                 8.8
         UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                           WASHINGTON. O.C.  20460
                            JAN 4   1379
       OFFICE or
AIR AND WASTE MANAGEMENT
 SUBJECT:   Guidance  for  Determining BACT Under PSD

    PROM:   David G.  Hawkins, Assistant Administrator
             for Air,  Noise, and Radiation

      TO:   Regional  Administrators, I-X

      The  1977 Clean Air Act amendments pertaining to the Prevention of
 Significant  Deterioration  (PSD) require that the determination of best
 available control technology  (BACT) be performed on a case-by-case basis
 considering  energy, environmental, and economic impacts and other costs.
 The enclosed document provides guidance to assist you in determining
 BACT  in the  PSD review.  This document has been circulated in draft
 form  and  reviewed by  your staff.

      The  purpose of the guideline is to provide the framework for a
 consistent approach in determining BACT.  The guidance is rather general,
 focusing  on  the parameters which should be considered in the analysis
 supporting -the proposed control system.  Unfortunately, no specific
 criteria  can be developed a priori, nor can quantitative factors relating
 to  the weighting and  evaluation of energy, environmental, and economic
 consideration  be prescribed.  However, consideration of the same set  of
 parameters should contribute to'more consistent decisions among the
 Regions.

      I recognize that the case-by-case BACT determination Is a difficult
 task and one which may be resource Intensive.  To minimize the resource
 requirements, the primary responsiblity for defending the proposed con-
 trol system must be placed on the source.   The guidelines suggest a
 significant effort by the source to provide data and analysis to support
 a permit application.  My office will  continue to provide assistance for
 the engineering aspects of control technology selection through operation
of the OAQPS new source review clearinghouse.

Enclosure

cc:  Assistant Administrators and Office Directors
     Director,  Air and Hazardous Materials Division, Regions I-X
     Director,  Facilities Technology Division, Region II
     Director,  Enforcement Division,  Regions I-X
    MAR 0 7 1979
    Zr'-ECICB 17

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                                                                8.8
         GUIDELINES FOR DETERMINING
  BEST AVAILABLE CONTROL TECHNOLOGY (BACT)
                DECEMBER 1978
     Office of Air, Noise, and Radiation
Office of Air Quality Planning and Standards
    U. S. Environmental Protection Agency

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                                                                               3.3
               GUIDELINES FOR DETERMINING BEST AVAILABLE
                       CONTROL TECHNOLOGY (BACT)

INTRODUCTION
     The 1977 Clean A1r Act Amendments establish more restrictive
conditions for the approval of pre-construction permit applications under
the Prevention of Significant Deterioration (PSD) program.  One of the
new requirements is for best available control technology (BACT) to be
installed for all pollutants regulated under the Act.*  Under the revised
Act, BACT Is to be determined on a case-by-case basis rather than auto-
matically applying an applicable Federal New Source Performance Standard
(NSPS), as was the case under the previous regulation.  Concern has been
expressed that these determinations should be consistent from area to
area.  In the context of case-by-case BACT, consistency does not ne-
cessarily mean that a new facility in one area will have an identical
mission limit as the same type of facility 1n another area.  Consis-
tency means that a consistent approach 1s used in determining BACT and
that the Impacts of alternative emission control systems are measured by
the same set of parameters, although evaluation of specific parameters
is done on a case-by-case basis.
PURPOSE
     This guideline is Intended for use by (1) EPA Regional Offices  in
determining BACT during the interim period before the States adopt
•Pollutants subject to National Ambient A1r Quality Standards,  Standards
of Performance for New Stationary Sources, National Emission  Standards
for Hazardous Air Pollutants, and Emission Standards for Moving Sources.

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                                    2
 State Implementation  Plan  (SIP)  provisions  for Implementing  the  PSD
 program,  (2)  by States  1n  writing  PSD  regulations  or determining BACT
 and  (3) by  Individual -sources  in preparing  PSD permit  applications.
 The  purpose of the  guideline is  to provide  the framework  for a con-
 sistent approach to determining  BACT.  The  emphasis is on the types
 of data which should  be required in a  pre-construction permit applica-
 tion and  how  the data should be  used in order  to determine BACT. The
 guideline addresses the technological  question of  whether the emission
 control system proposed In the permit  application  represents BACT or
 whether a more stringent level of  emission  control 1s  appropriate
 considering available technology and economic,  energy, and environmen-
 tal  Impacts.   The guideline assumes accomplishment of  all  other  air
 quality review requirements including, for  example, the requirement
 that air  quality standards and appropriate  PSD  increments  are met,
 stack heights  are appropriate, and  siting 1s acceptable.
     In accomplishing this purpose,  the guideline  lists a  number of
 factors which  can be considered  in  assessing energy, environmental, and
 economic  impacts.  While the full  list represents  the  magnitude  of the
 analysis  that  could be required  for a very  large and complex source, many
 of these  factors will not be relevant to the typical BACT  review.  The
 inclusion of any factor should be based on  its  relative merit consid-
 ering such Influences as source  size, nature of the process  and  control
options, and local conditions.   It  is the clear intent of  EPA not to
 require an analysis of the full  proportion  described herein  for  small
sources or for the use of conventional control  equipment whose impacts

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                                                                            S.8
                                   3
 are well established.  In short, the BACT analysis should be held to a
minimum with the depth of analysis being dependent on the difficulty of
the decision.
PHILOSOPHY OF BACT
     The primary purpose of BACT 1s to optimize consumption of PSD air
quality increments thereby enlarging the potential for future economic
growth without significantly degrading air quality.  The Act places the
responsibility of determining BACT with the State once a PSD SIP revision
is approved.  The BACT decision is to take into account energy, environ-
mental, and economic Impacts and other costs associated with application
of alternative control systems.  This case-by-case approach allows
adoption of Improvements in emission control technology to become widespread
more rapidly than would occur through the uniform Federal new source or
hazardous emission standards.  In setting the NSPS. for example, emission
limits are selected which can reasonably be met by all new or modified
sources in an industrial category, even though some individual sources
are capable of lower emissions.  Additionally, because of resource
limitations in EPA, revision of new source standards must lag somewhat
behind the evolution of new or Improved technology.  Accordingly, new or
modified facilities in some source categories may be capable of achieving
lower emission levels that NSPS without substantial economic impacts.
The case-by-case BACT approach provides a mechanism for determining and
applying the best technology in each individual situation.  Hence, NSPS
and NESHAPS are Federal guidelines for BACT determinations and establish
minimum acceptable control requirements for a BACT determination.

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                                   4
Where Federal standards do not exist, guidance on well-control!ed sources
is available through the QAQPS clearinghouse (discussed later).
     A critical decision In the BACT analysis is the relative weight
ass-igned to the energy, environmental, and economic Impacts.  Congress
implied that this decision should be made by the State, thus allowing
some flexibility in emission control requirements depending on local
energy, environmental, and economic conditions and local preferences.
For example, in an area with unusually high unemployment, the economic
impacts may be weighted more heavily If the application of a strict BACT
emission requirement would reduce production or jobs.  On the other
hand, if visibility protection 1s a major value of the area, then
environmental impacts could be weighted more heavily.  This flexible
approach allows the permitting authority to consider a number of local
factors (for example the size of the plant, the amount of the air
quality Increment that would be consumed, and desired economic growth
in the area) in deciding on a weighting scheme.  State judgment and
the Federal emission standards are the foundations for the BACT deter-
mination.  Accordingly, EPA does not consider it appropriate to assign
nationally applicable weighting factors in this guideline.
GENERAL GUIDELINES
     The recommended approach to determining BACT 1s to place on the
applicant the responsibility for presenting and defending the technology
selection.*  This approach recognizes that the applicant is best
suited for assessing the costs, environmental residuals, and energy
     •Preliminary meetings between the applicant and the permitting authority
are encouraged as a means of promoting efficiency in the review process.

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                                                                           8.8
 penalties associated with alternative control options as they apply
 to his processes.  The permit application should contain the following
 elements relative to BACT:
     (1)  Proposal of a control system representing BACT.  BACT should
 address control of each emission point at a facility, including fugi-
 tive process, fugitive dust, and stack emissions.  Technology selection
 should consider application of flue gas treatment, fuel treatment, and
 processes or techniques which are inherently low-polluting.  In no
 circumstance should a system be proposed for any emission point unless
 it is at least as stringent as the applicable SIP or Federal emission
 requirement (whichever 1s more stringent).  In cases where technolog-
 ical  or economic limitations on the application of measurement techniques
would make the Imposition of an emission standard infeasible, a design,
operating, or equipment standard may be established.
     (2)  Presentation of alternative systems that could achieve a
 higher degree of emission control.  For each pollutant, the BACT permit
application should present control alternatives which have greater control
capabilities than the system proposed as BACT and which have been used or
 proposed for the same or similar applications.  In some cases, the BACT
decision may require a trade-off of control among pollutants.  That is,
a technology may do slightly worse in controlling one pollutant, but do
significantly better in controlling another air, water, or solid waste
residual.  Such alternatives should not be excluded from consideration.
but in justifying BACT for a given pollutant only those alternatives
which have greater control capabilities for that pollutant need be
presented in the permit application.

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                                   6
     If no better control technology is available for an emission point,
then such finding should be stated and supported, and no further analysis
is required.  Other equipment with similar control capabilities need not
be presented (e.g., a baghouse versus an equivalent ESP at a participate
emitter).  Unrealistic alternatives need not be presentee such as placi.-.g
in series control equipment which is normally used alone (e.g., an ESP
followed by a baghouse).  In some cases, a better control technology rray
be available for a general  type of operation, but unique processing
equipment or procedures may create a valid technical reason which would
preclude its selection as BACT.  Such situations should be fully suoporte
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                                                                             8.8
specific energy, environmental, and economic  impacts  which  may be addressed


in this impact analysis and explains the data  requirements  for documenting


an adverse impact.  Each of the factors discussed below  need  not  be


addressed in every permit application.   Rather this  guideline presents  a


set of potential impacts any number of which  may be  addressed in  a


permit application depending on the individual  situation.   For example,


even though a control  system may produce solid waste  by-products, such


impacts need not be presented in the PSD permit application unless the


applicant wishes to use solid waste impact as  an argument against selection


of a particular control alternative as BACT.


     In general, the BACT analysis should focus on the direct (on-site)


impacts of alternative control systems.  Indirect.energy or environmental


impacts are not required but may be considered where  such impacts are found


to be significant and well quantified.   Indirect energy  impacts include


such impacts as energy to produce raw materials for  construction  of


control equipment, increased use of foreign oil, or  increased oil use in
                               4"

the utility grid.  Indirect environmental impacts include such consider-


ations as pollution at an off-site manufacturing facility which produces


materials needed to construct or operate a proposed  control system.


Indirect impacts will  generally not be considered, in the BACT review,


since the complexity of consumption patterns  in the economy makes those


impacts difficult to quantify.  For example,  since manufacturers  purchase


capital equipment and supplies from many suppliers,  who  in  turn purchase


goods from the other suppliers, accurate tracing of indirect impacts may not

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                                    8
 be possible.   Raw materials may be needed to operate cor,*.-c!  equipment,
 and suppliers  of these resources may change over time.   *•>••;! arly,  it
 generally will  not be possible to determine specific povir  «*ations  and
 fuel  sources which would be used to satisfy electrical  J.: '.= r.?  over  the
 lifetime  of a  control  device.
      Ouplicative analyses will  not be required  in prepcri..g  tre  BACT
 permit  application.   Any studies previously performed for  ip.ironraental
 Impact  Statements,  water pollution permits,  State New Sc..-'.=  Review, or
 other programs  may be used when appropriate to  demonstrate zr,  aoverse
 energy, environmental,  or economic impact.
      These guidelines  are applicable to  both new and modi*">5  sources.
 Where appropriate,  however,  the review may  consider  any  sj-c-ia1.  ec.onoir.ic
 or  physical constraints  which might limit the application of
 certain control  techniques to a. modification project.   ".a*,  is,  the  level
 of  control  required for  a  process  undergoing modification :r • construction
 may not be as stringent  as that which would  be  required  i- vs sare  pro-
 cess  were  being  constructed  at  a  grass-roots facility.   :,;' findings,
 however, must be made on a case-by-case  basis by the pe^-itt:i.;  autnonty
 considering the  relevant economic  and environmental  impact.
      The  following discussion,  under.each of three headi^s of ere-sy,
 environmental, and economic  impacts,  lists and  briefly dn:*'!:es a numSs~
 of  factors  which may  be  addressed  in  the respective  imsa.--. 3r.:!,.'sss.  "-sss
 factors are guidelines only  and are  not  intended  as  an e-:"•,:• ive l?s*. c*
considerations for BACT.   Some  of  these  factors may  not  ': a^u

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                                                                            8.8
                                   9
in all cases, while, in other  instances, factors which are not included
here may be relevant to the BACT determination.  The guideline does not
address the evaluation of each factor nor the weighting of any factor
relative to another.  Such determinations should be made on a case-by-
case basis by the permitting authority.  For purposes of this discussion,
terms such as "emission control system" or "BACT system" refer to design,
equipment, or operating standards and non-polluting processes as well as
flue gas control equipment.
I.   Energy Impact
     Energy impacts should address energy use associated with a control
system and the direct effects of such energy use on the facility and the
community.  As noted earlier,  indirect energy impacts (such as energy to
produce raw materials for construction of control equipment) are not
required but may be considered 1f the permitting authority determines, based
on a showing by the applicant, that the impact is significant and that
the impact can be well  quantified.  Some specific considerations for
energy impacts are presented below.
     A.   Energy Consumption
     The amount, type (e.g., electric, coal, natural gas), and source
of energy required by each alternative emission control system should
be identified and compared to the quantities and types of energy re-
quired by the proposed BACT system.  In analyzing for energy consumption,
various alternatives can be compared in terms of a) energy consumption
per unit of pollution removed  (for example, Btu/ton hydrocarbon removed)

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                                    10
 and b) energy consumption versus  the portion  of the  remaining  PSD
 increment which is preserved for  future  growth.   If  such  comparisons are
 made,  they should be computed on  both an overall  and an incremental basis.
     B.    Impact on Scarce Fuels
     The  type and amount  of scarce  fuels (e.g.,  natural gas, distillate
 oil) which are required to comply with each alternative control require-
 ment should be identified and compared with the  BACT requirement.  The
 designation of a scarce fuel  may vary from area  to area,  but in general
 a  scarce  fuel  is one which is in short supply locally and can  better be
 used for  alternative purposes, or one which may  not  be reasonably
 available  to  the source either at present or in  the  future.
     C.    Impact on  Locally Available Coal
     Alternatives which require the use of a fuel other than locally or
 regionally available coal  should be discouraged  if such a requirement
 causes significant local economic disruption or unemployment.
     0.   Energy  Production Impacts (electric utilities)
     The 1977 Act Amendments  imposed more stringent BACT requirements,
and may affect electric utility units that  were well  along in  the
planning process prior to adoption of EPA regulations in June  1978.
Where the start-up of the more stringent PSD program would result in
construction delays for these units, the BACT determination may consider
such impacts.  The impact of delay plant operation should be assessed
in terms of reserve capacities, system reliability, and additional  costs
implied by such delays.

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                                                                              8.8
 II.  Environmental Impact
      The net environmental impact associated with each alternative
 emission control system should be determined.   Both  beneficial  impacts
 (e.g., reduced emissions attributed to a control  system)  and  adverse
 impacts (e.g., exacerbation of another pollution  problem  through  use of
 a control  system)  should be discussed and quantified.   As  pointed out
 above, indirect environmental  impacts (such  as  pollution  impacts  at  an
 off-site plant which  manufacturers  chemicals  for  use in pollution control
 equipment)  normally need not be considered.  The  analysis  should  be
     •
 presented  in the form of the incremental  impact of alternative  control
 systems relative to the system proposed  as BACT in the  permit application.
 Some specific considerations are presented below;
     A.   Air Pollution Impact
     The impact of air pollutants emitted from  a  gas stream or  a
 fugitive emission  source can be assessed  terms  of either quanity  of
 emissions, modeled effects  on  air quality, or both.  If application of  a
 control  system  directly removes  or  releases other  air pollutants  (or
 precursors to other air pollutants),  then the pollutants affected and
 the  impact of these emission changes  should be  identified.  The analysis
 can  consider any pollutant  affecting  local air  quality  including pollutants
 which are not currently regulated under the Act, but which may  be of
 special  concern locally.
     In  the absence of  a more systematic technique (e.g.,  market-type
systems, etc.) for allocating PSD increments, BACT determinations are
important for executing such allocations.  PSD programs which depend on BACT
determinations to  implement the allocation of increments should project

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                                   12
desired levels of growth In an area so that BACT determinations for
each source will serve to insure that the total air impacts of future
growth are no greater than the available Increments.  Since in the first
years of the PSD program many areas may have neither a functioning market
system for allocating increments no accurate projects of desired growth,
it is important that such areas use the BACT determinations during this
initial period to conserve the remaining increments as much as possible
until more systematic allocation mechanisms are put In place.
     B.   Water Impact
     Relative quantities of water used and water pollutants produced
and discharged as a result of use of each alternative emission control
system should be identified.  Where possible, the analysis should assess
their effect on such local  surface water quality parameters as pH,
turbidity, dissolved oxygen, salinity, toxic chemical levels and any
other important considerations, as well as on groundwater.  The analysis
should consider whether applicable water quality standards are met and
the availability and effectiveness of various techniques to reduce
potential adverse effects.
     C.   Solid Waste Disposal Impact
     The quality and quantity of solid waste (e.g., sludges, solids) that
must be stored and disposed of or recycled as the result of the applica-
tion of each alternative emission control system should be compared
with the quality and quantity of wastes created if the emission control
system proposed as BACT is used.  The composition and various other
characteristics of the solid waste (such as permeability, water retention,
rewatering of dried material, compression strength, Teachability of
dissolved ions, bulk density, ability to support vegetation growth and

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                                                                             8.8
                                    13
 hazardous  characteristics) which are significant with regard to potential
 surface water  pollution or transport into and contamination of sub-
 surface waters or aquifers should be considered.  The relative effec-
 tiveness,  hazard and opportunity for solid waste management options,
 such as sanitary landfill, incineration, and recycling, should be
 identified and discussed.
     0.    Irreversible or Irretrievable Commitment of Resources
     The BACT  decision may consider the extent to which the alternative
 emission control systems may involve a trade-off between short-term
 environmental  gains at the expense of long-term environmental losses
 and the extent to which the alternative systems may result in irrever-
 sible or irretrievable commitment of resources (for example, use of
 scarce water resources).
     E.   Other Environmental Impacts
     Incremental differences in noise levels, radiant heat, or dis-
 sipated static electrical energy should be considered where appropriate.
 III. Economic  Impact
     This analysis should address the economic impacts associated with
 the incremental costs of installing and operating alternative control
 systems above  the economic impact associated with* the system proposed
 as BACT.  The  review should include a complete explanation of pro-
cedures for assessing economic impacts and any supporting data.  As
outlined below, economic considerations can address direct economic
 impacts on the firm and impacts on local economic growth.
     A.   Direct Economic Impacts on the Plant
     Direct economic impacts on the plant should be examined through
evaluation of the following:

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                                   14
     1.   Direct Costs
     The direct cost for each control alternative should be presented
both on an incremental and on an overall basis.  Investment costs,
operations and maintenance costs and annualized costs should be presented
separately.  Annualized costs are operations and maintenance costs plus
depreciation and interest charges on the investment.  Costs should be
itemized and explained.  Credit for tax incentives should be included
along with credits for product recovery costs and by-product sales
generated from the use of control systems.  The lifetime of the invest-
ment should be stated.  Where possible, costs should be broken down
into process change costs (costs of less polluting production process)
and direct pollution abatement costs (cost of pollution control equipment).
The costs of air treatment, water treatment and solid waste disposal
should be presented separately.   The analysis should also include the
total investment cost of tne new facility.
     As a guide in determining when control costs become excessive,
alternative control systems can be compared in terms of certain cost
effectiveness ratios.  Such ratios may include the following:
     0 ratio of total control costs to total investment costs.
     0 cost per unit of pollution removed (for example, dollars/ton).
     0 cost versus additional portion of remaining PSD increment
       preserved for future growth.
     0 unit production costs (for example, GrW/kwnr, dollars/ton
       of steel).
In some cases, the unit of production output may be difficult to determine,
as in the case of a plant producing many different products.  In such
cases, unit production costs can be expressed as cost per dollar of
total sales.

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                                                                             3.3
                                    15
      2.   Capital  Availability
      Capital availability addresses the difficulty that some sources
may face  in financing alternative control systems.  Proof of such
claims should be  fully documented.
      B.   Local Economic  Impacts
      Local economic  impacts address the economic feasibility of al-
ternative BACT requirements and the impact of the production decisions
of the firm in response  to alternative levels of control. For example,
a BACT alternative may alter the economics of a project to the point
where the decision would be made to cancel the construction or expan-
sion  of a facility,  to relocate a plant, to reduce the scale of opera-
tion, or  to change the production mix.  The local economic impacts of
such decisions should be assessed in terms of local employment effects
including number  of  jobs, dollars paid in.salaries, and changes in
employee  skill levels required.  The guideline does not imply that the
BACT decision should force new projects to the brink of cancellation.
The BACT  decision must be based on sound judgment, balancing environment
benefits  with energy, economic, and other impacts.
     Local economic  impacts also can address the effect of various BACT
alternatives on air  quality increment consumption and the subsequent
impact on future  growth  potential in the surrounding area.  The BACT
decision  should reflect  policy decisions to conserve the available air
quality increment for future growth.
IV.  Other Costs
     Other costs  associated with alternative emission control systems
may be considered where appropriate.

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                                      16
ASSISTANCE IN DETERMINING BACT
     Assistance to the states and Regional Offices in evaluating control
technology will continue to be provided through the OAQPS new source
review clearinghouse (August 1, 1977 memo* Walter C. Barber to Regional
Offices, "OAQPS Assistance for BACT/RACT/LAER Determinations").  Through
its repository of information on past BACT/RACT/LAER decisions, the
clearinghouse provides a communication link for advising reviewing
authorities of each other's determinations, thereby promoting consistency
in BACT determinations.  The degree to which the clearinghouse will be
effective as a consistency-improving tool will depend on the degree to
which the BACT determinations are reported to OAQPS.  All Regional Offices
are requested to submit BACT findings to the clearinghouse.  In addition
to the repository, the clearinghouse system also provides a focal point
for answering questions related to policy issues and control technology.
With respect to control technology, OAQPS can assist in establishing the
range of alternative controls for a particular process, but cannot
evaluate case-by-case energy, environmental* and economic impacts or
select BACT emission levels.  In short, the clearinghouse can be an
important input to the reviewing authority's decision, but it cannot
substitute for the case-by-case analysis required to select the appropriate
control technology.

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                     .
   J*T6    J/ . .  i ^  .w/w

SUBJECT    BACT Determinations  for  Power  Plants  S .jject to Revised NSPS


     *   Walter C.  Barber,  Director  m[j\?T    \~$Jt\JL
          Office of  Air  Quality  Planning and^Standafas ^

    TO-   Deputy Regional Administrator, Regions  I-X

              It has  come to  my attention  that some confusion may exist relative
          to the applicability of  the proposed  new source performance standard (iiSPS)
          for steam  electric power plants to  the  PSD permitting process.  The PSD
          program requires a determination  that new power plants employ best
          available  control  technology (BACT)  which is defined on a case-by-case
          basis  and  car,  be no  less stringent  than the applicable NSPS.  Thus, for
          new power  plants where the  proposed  NSPS identifies the aoclicable
          standard,  all  PSD  permit decisions  regarding BACT and application com-
          pleteness  should be  made to reflect  at  least the level of stringency.
         .contained  in this  proposal.

              At the  time of  proposal,  Administrator Costle indicated that no
          final  decision had been  made as to  tne  appropriate stringency of tne
          standard and that  he would  base the  final rule on the record developed
          during the public  comment period.  Mr.  Costle further indicated that
          he was proposing the stringent alternative, in part, because it would
          be easier  tc design  down to a less  stringent promulgation than it would
          be to  design up to a more stringent  standard.   Accordingly, BACT decisions
          made prior to  promulgation  which  require control equal to that contained
          in the proposal should be reviewed  against the final standard to determine
          if alternative (less stringent) controls would be more appropriate.
          Of course, any more  stringent standards required by the promulgated rule
          would  also establish a new technology baseline for the relevant portion
          of the 3ACT determination.

          cc: D. Hawkins
              Director, Air & Hazardous Materials Division, Regions  I-X
              R. Rhoads
              S. Kuhrtz
               I. Artico
              B. Steigerwald
              H. Fast
              D. Borchers
              E. Tuerk
       > 1320-4 (R»*. J-74)

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                                                                           8.10
                BACT i-uR FUGITIVE EMISSIONS OF HYDROCASBQIIS
       As a condition of this permit, tlie applicant will  develop and
cent a plan to control fugitive emissions of hydrocarbons from the proposed
facility.~A~detailed~writlen descnptioTTcT'tHe" plan'must'be  nade avail-
able upon request by the Regional  Administrator.   Moreover, the  plan must
be fully implemented within ISO days- following, initial plant startup.  As
a mini mum, the plan will  include- the'.fal? owing" work practice and equipment
specifications: __      -   -
1.  A leak detection  and  repair progra]rf.wit£ oe^TrnpTeinented to reduca
    emissions from equipment leaks. -The following specifications,
   Criteria, and  requiransiits .will jfe'&um- into- the ronitaring
   •pro gran: — • - ' - _
    •J-hlthlirlSO  days 'of initial pnnTstartup^Tl"cflmpfllientrwiTf    •"
      be'imnitored for-le.aks-vritn~a-VQC-.datect7oii device. "in addition,
      jeripdi{Ljnonitor1ng":of. specif TeTetasponentr-srtH be-perforngd —  —
      .according to the following frequencies.         — — -
      1) monitor with a VOC detection device at- least once every
         365 days:
             open ended pipes  which have been  fitted with closure
             devices in accordance with Part 4 of this section,  and
             process drains: (if a- leak is  detected,  the equipment
             causing the organic discharge. to  the stream will  be.
             Identified and repaired). __
      3 ij Monitor with a VOC- detection device- af least once every
          0. days ; --                ..... -- — -----
           - valves in gas  service,
           - compressors  and  other components with  rotating shafts
           — .••
             1" gas service,
             reciprocating  compressors "and all "other components with
             reciprocating  shafts  in gas service,
        ..   safety .relief  valves, in. gas service,
      Liu£r safety relief  valves  in liquid service which are
      :
             shielded  such  that visual inspection cannot identify
                                         r                     "
             leaks,  and
           - seal oil  degassing vents.

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   iii) Monitor visually at least once every seven  days:
         - valves  ii.-liquid servscs,
         - pumps and other  components with rotating shafts  in
           liquid  service,
         - reciprocating pumps and other components with
           reciprocating shafts in_liquid service,  and
         - safety  relief valves in liquid service.
 b) The  instrumentation  and procedures used in the  monitoring program
   will  confona to or be the equivalent of the test nathod in
   Appendix B  of  the document, Control of Volatile Qrcam'c Compound
    Leaks from Refinery Eouiprent (EPA-450/2-78-036J.
 c)  A leak will be defined as emission of VOC to the atmosphere as
    a "result of   '    *"'
    1) the dripping of liquid volatile organic compounds, and/or
   •n} the detee£Tori~Bf lo;000~ppm"by~valTaienaeasTired~a5~hexajTe
      at"the" surface""of"Cor as close as poss'ible tol" Sh* "potential
	^source with a  portable VOC detection instrument..
"3).  AH  Jeaic vn 11. oe_repaired within nye calen"da"r7~da"ys~9,T^thX-
    time they are located^  RepafFoT a coBponeht~"Ts"3efined as:"
    1} Ho dripping of liquid volatile organic compounds,
      and
   1i) No concentration of volatile organic compounds in
      excess of 1,000 ppo by volume measured as hexane within
      one centimeter of the leak source with a portable VOC
      detection instrument.
 e)  Records will be kept of each leak detected and the subsequent
    maintenance performed on that leak.  One v/ay to conply with
    this requirement  is to keep a survey log as is described in
    Section 6.3.2 of  the document referenced in Part (b) above.
    Whatever system is used, records will contain sufficient
    information to identify specific components within the plant.
    Records will be maintained for a period of at least two years.
   •In addition, when a leak is found an easily identifiable water-
    proof tag bearing the date the leak was located will be affixed
    to the components.  This tag will remain until the leak is repaired.
                                -2-

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     f) All components    the servics of VOC within -.he   ant,  except flanges,
        will be made readily distinguishable from components  not  in  VOC
        service.  This can be accomplished  with  an identifiable marking of
        some kind.
     g) Reports on the results of the leak  detection  and  repair program will
        be submitted to the Regional  Administrator within 60  days of each
        anniversary of initial  plant  startup.  As a minimum this  report
        will include a discussion of  the total number and type  of leaks
        repaired and a detailed description of leaks  which were not
       -repaired within the five  day  tics lim't.   The latter  will include
        sufficient detail  to enable tracing the  identity  of each  leak  to
        the plant records  kept in accordance with the preceding requirement
        (e).  In addition  to the  annual  reports,  brief quarterly  reports,
        listing all  leaks  not repaired during the five day limit, will  be
        submitted to the Regional  Administrator within 15 days  of the  end  of
       "of "each 90 day period following  initial  plant startup".  Trie'fourth
       quarterly  report  can be  incorporated into the annual report.

2'.   Compressors;~puops~and  other-components -with rotating -shafts will  be-
     equipped with double  mechanical  seals.

3.   Safety relief valves  handling VOC will be fitted with rupture discs in
     the lines  which precede them such that the relief valves are in series
     with  and follow the rupture  discs,
     or
    •safety relief valves  in  gas  service  handling VOC-will be vented to a
     flare,  recovery, or sons other means of control  and  safety relief
     valves  in  liquid service handling VOC will be  equipped with catch
     basins  or  some  other  device which directs liquids  discharged during
     process upsets  back to  the process,  to a control  device or to disposal.
     No more than  ten percent by weight of  the material discharged from
     each safety relief valve will be emitted to  the  atmosphere.

4.   Open ended pipes will  be equipped with caps,  plugs;  blind  flanges,
     second valves or other closure devices which will  be removed or
     opened only while the pipe is in use.

                                     -3-

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5f  Cooling water in ail non-con.act uu:iumi»ur», iieu;. ttAk.nan-.ui a «"« »...•>.•
    heat transfer cqu.^rant in VCC service will be maintained at a pressure
    which exceeds the pressure of :he VOC in the sane ..iece of equipment oy
    ten percent,
    or
    the total organic carbon contant of cooling water will be monitored at
    the Inlet to all cooling towers at least once every 90 days:
    If the organic content is found to exceed ten ppm by weight, the equip-
    ment which is leaking organics to the cooling water will be identified
    and repaired.  Testing will be in accordance with the approved methods
    for total organic carbon outlined in 40 CFR 136.

6.  Sampling ports and procedures will be designed to prevent any YOC
    emissions from purging sample lines and sacple vessels.  Also, samples
    of volatile organic chemicals will be disposed of properly following
   Analysis.  One way_to comply_with this requirement is to institute closed
   ..lflop_sarapling andjto incinerate.samples following analysis.
                                                                          V
 7.  Haste water separtors will be equipped with sealed 'covers which totally
     enclose the compartment liquid contents.  These can be solid, fixed
     roofs or floating roofs. .Also, any gauging devices will include a
     projection into the liquid or some other device to eliminate the escape
     of vapors when the gauge is not in active service. •

 8.  Vacuum systems trill be equipped such that non-condensibles from notuells,
    -condensers, accumulators and other parts of the system are vented to a
     flare, an incinerator, a fire box, a flue gas system, a recovery system
     or some other means of control.

 9.  Pressurized process units handling VOC will be vented to a flare, or
     some other means of control during depressuriration for unit maintenance.
     Controlled venting will continue until the vessel's internal pressure
    reaches the pressure drop across the control device or five psig,
     whichever is less.

10.  Any tank truck or rail car loading facility having a throughput greater
     than 76,000 liters.(20,000 gallons) per day of volatile organic com-
     pounds averaged over any 30-day period, will be equipped with a vapor
                                     -4-

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      vent gasscs to at least 3447  pascals  (0.5 psia).   Connections  on  vapor
      balance systems wi    be vaoor tight.

 11.   Storage of volatile  organic compounds  will  comply with  the provisions
      of the proposed standards  of  performance  for petroleum  liquid  storage
      vessels dated flay 13,  1973 (proposed 40 CFR 60  Subpart  Ka) with the
      exception that the capacity size  cut-off will  be 94,635  liters  (25,000
      gallons)  instead of  151,416 liters  (40,000  gallons) and the lower limit
      applicability on true  vapor pressure will be 3.45 kilopascals  (0.5 psia)
      instead of 10.35 kilopascals  (1.5 psia).  Also  any uninsulated tank
      exterior surfaces exposed  to  the sun will be painted white.  Furthermore,
      all  fixed roof tanks not controlled by a  vapor  recovery system will be
      equipped with a conservation  vent which will  be inspected and  maintained
      yearly to insure proper operation.  Finally,  all  storage tanks with a
      capacity exceeding 3785 liters (1000 gallons),  except pressure vessels
     •and  tanks with vapor recovery systems, will  be  equipped with permanent
     • suboerged-ftl 1 - pi pesv

 EXEMPTIONS
"  I.~I".73pec"ificaT!y "excluded'from the requirements  of BACT  for Fugitive
 Emissions of Hydrocarbons are all  pieces of equipment  handling commercial
 natural gas.
        Any component which  has no potential to  emit VOC to  the atmosphere,
 is exempt from monitoring requirements.  For example,  a compressor  which is
 totally enclosed and vented  to  a flare system  or a safety relief valve which
 discharges  to  a flare system does  not have  to  be monitored with a VOC  detec-
 tion  device.

 EQUIVALENT  TECHNOLOGY
        Any technology shoxvn to the satisfaction of  the Regional Administrator
 to be the equivalent of the  work practices  and equipment specifications in
 this  section can be  substituted, with the Regional Administrator's  written
 permission,  for the  requirements of Parts 1-11.

 DEFINITION
        For the  purposes of  this section the following terms are defined.
        • Volatile Organic Compounds  (VOC)  are compounds of  carbon
                                      -5-

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   (excluding  carbon  monoxide, carbon dioxide, carbonic acid,
   metallic  cars-.^.s  ar  carscr.stcs, anrcmuai can,  its, atSane,
   and  nethans)  that  have a true vapor pressure greater tlian
   130  pascals (O.Q1S8 pounds per square inch).
 » A Component is  any piece of equipment capable of leaking VOC
   to the  atmosphere  which includes but is not linited to pumps,
   compressors,  pipeline valves, safety relief valves, seal oil
   degassing vents, open ended pipes and process drains.
 • Open Ended  Pipes are  those which are preceded by valvas or
   other closure devices capable of leaking VOC to tha atmosphere.
   •Exceptions  are  safety relief valves and bleeder valves in double
   block and bleeder  valve systems.
-• Commercial  Natural Sas is a mixture of gaseous hydrocarbons,
   chiefly methane, used as a fuel and obtained from a company
   licensed  to .dispense,such jgasses.
•c-Gas-Serrice-fcr-cospcnents-ls defines* ss-tha YOC-bsisg-garcc-JS
   at the  conditions  that prevail in the facility during normal
   operations.  Similarly, Liquid Service for components is
  "defined as  the  VOC being liquid at the conditions which pre-
   vail  during normal operations.
 • A cover on  a  waste water separator is considered to be sealed
   1f the  concentration  within one centimeter of the lip or the
   surface of  the  tank does not exceed 10,000 ppm by volume mea-
   sured as  hexane with  a VOC detection device.  A fixed roof
  .wm.be measured at the surfaces which join the roof to the
   walls of  the  compartment.  A floating roof tank will be
   measured  along  the plane across the upper edge of the walls
   of the  compartment.
 • Fugitive  Emissions are emissions of VOC due to equipment leaks,
   process upsets, sampling procedures, process turnarounds, and
   storage and transfer  of materials.  Also included in the defi-
   nition  of Fugitive Emissions are VOC emissions from wastewater
   separators  and  vacuum systems.

                             •6-

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                                                              8.11
        UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
             Region 17 - Atlanta, Georgia  30365
   DATE:   AU6  5 1983
SUBJECT:  Pollution Control Technical Manual
   PROM:  Assistant Regional Administrator
            for Policy and Management
     TO:  T. Devine, Director Air & Waste Management Division
          P. Traina, Director, Water Management Division
          J. Finger, Director, Environmental Services Division

Attached is an EPA headquarters memorandum describing the
availability and contents of a series of Pollution Control
Technical Manuals (PCTM) for the synthetic fuel industry.
Please advise your key staff of the availability of this
information*
SowarfD. Zeller
Attachment

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                                                                  s.n

   Tj      UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
   |                     WASHINGTON. D.C. 20460
                          26JUL1983
omcc of
 AND DEVELOPMENT
SUBJECT:  Pollution- Control Technical Manuals (PCTM)

FROM:    '#orris Altscfaulir
          Regional Services Staff
          Office of Research and Development  (RD-674)

TO:       R&O Intra-Regional Coordinators

     Attached is a description of synthetic fuel PCTMs, including
an appendix describing a wide variety of generally applicable
control technologies.  The p^Trv1* describe six1 (6) synfuels
processes (three oil shale and three coal) as to process description,
waste stream characterization and associated pollution control
technologies.  The appendix is essentially a stand alone document
describing air, water aM solid waste pollution control technologies
applicable to a wide variety of industrial waste streams.  It
includes control, technology process descriptions, applicability,
performance, secondary waste generation, reliability and economics.
Please check with other regional and state personnel who may need
such information and rail either Greg Ondich (382-2627) or myself
(382-7667) for either complete sets or individual volumes.  In the
future, these documents will only be available from NTIS.

Attachment

cc:  Energy Research Committee
       Regional Coordinator
     Greg Ondich, RD-681
                                                       SMSBHffHKL i^ISSRTT 8
                                                      o
                                                           JUL271S52  ,
                                                                  U !J=u
                                                                   rr
                                                                , GA.

-------
                     Federal Register
                                                                                                          3.11
                                             48.  No. 130  /  Wednesday. }uiy 3.   33 /  Notices
Inquiries concerning these permits  .
-^ould ba directed to the persons cited
   jve. It ii suggested that interested
^--jn^fr:>r3ir:'T

 Syntftdfc Fuw Pollution Gon&ol   . - •
 Technical Manuals; Availability'..." *'„
   Too Euviiunmental Protecuon Agency

 process specific Synthetic Fuel Pollution
 Control Technical Manuals. For the past
 several years the EPA Office of
 Research and Development ho been-' "
 characterizing the waste stteanu n*om
' vanoui synfuel processes to detenmne *••
 the applicability of pollution control.. -'r*.
 ^ecmuories to US synthetic far! plants.
   le result of these studies is this series
  . manuals that address controls for"*. •• •
 waste streams from specific synfuel.- • -..-
 technologies. The purpose of the .  '.

 discharge, and pollution control data for
 use oy ffovcroxncflt pc*^uii wcxtcHij


   To understand how waste streams   . .
 and controls are influenced by various  _.
 feedstocks and processes, the *•""•«•'•
 cover a range of alternative fuel sources.

 liquefaction by direct and indirect

 shale. A single appendix volume ho
 also been prepared to provide detailed

 on approximately SO an*, water and solid
 waste pollution control technologies. •
 The specific manuals are
 Pollution Control Tee&mcal Manual: TOSCO
  0 Oil Shale Retorang with Underground
  Mount, (ZPA-800/8-O-OOJ. NTS Oner
  NO.P383-20Q212)
 Pollution Control Technical Manual: Modified
  la-Sita Oil Shale Retoranx Coaoinad with
  Uirgi Surface Restonnsj (EPA-eOB/ft-O-
  004. NTIS Order No. PBB3-200121)
 PoUanoa Conffol Technical Manual: LORD 03
  Shale Restoring with Ooen Pit Mining
   •SPA-SOO/a-O-OOS. NTIS Order No. P3SJ-
   aOM]
 roUooon Control Technical Manual for Luzp
 • Based Inouect Caal Uquetacaon and SNC
                                        Street. SW, Washington. D.C. 20460  .'
                                        (202) 382-2827.            	     ^ "
                                        Ericb Breeaauec.            '   '!     " "]
                                        Acting Deputy Assistant Adaunuuv tor for
                                        AeswrcA and Development.
                                        p* Doc. aM7m RM NMK *•* «•)
                                                  	...          »      i •
                                        •(••VIV «MMP« ••^W^W^B      • •  •      •
                                                           . 	.-.        '•
                                                        organized sunilaiiy.
                                                                          ~r>r-
 Initially, the process technology is
 dcscnbtd incindi&s AUtcrieti flow
 csQ^utfis* tuflo A& mvcrtory of IH^BSXV   *
 stream cemeesitons are presented. From
 these characterized waste streams.'  ~ •
 several central teehnblogrexamples are
 described for each medium (air. water or
 solid waste) hurder to illustrate typical:'
 MW,tvwl •vmltf.vMivft^^ 7cf4fHB40v ivt   '
 tuulrul system cost and peso
 presented together with descriptions of.
 discharge soeams. secondary waste  *. ".
 stteams. and energy requirements. A .  .„
 lUBQiary of the limitations in the data
 boe used to develop the ***•*"••!• is
 also presented	          ."!"
   Tne buii&ol technology examples used
 m the manuals an for illustrative
 purposes only and on not mtttiBco to
 uiuvey an EPA endorsement or   .__ -~
 reconttnenQatio^t ^^he selection or

 specific plants is the exclusive function
- of designers and permitters who have
 oje flex}oiU&7 to evaluate ann concor
 __ .!._ iftftmt flir^^ffwA •
                                                               if emphasis is
                                                                tility and . £
                                                                                                                 •'*''
                                                                               applicators of restncted use pesticides.^;
                                                                               Notice of approval of the originakj evj^s
                                                                               certification plan appeared in tht J^li__^
                                                                               Federal Register of November 10. ISTZ,^,
                                                                               (42 FR 58568). This original certification"'.:
                                                                               plan will remain in effect pending  .ala«j
                                                                               approval of the revised certification ' '»
                                                                               plan. Notice is hereby given of the intent,
                                                                               of thft Regional Administrator, EPA *  "~" '
                                                                               Region VI to approve .the revised Te
                                                                               certification plan. A summary of the
                                                                               revised Texas plan appears below.
                                                                               Interested persons are invited to ' ..'
                                                                               BATE Comments should be submitted  -;
                                                                               on before August 5.1983.   - ••"  -,-^j
                                                                                         : Address i
identified by tbft' vnni"* number OPP
42024C to:NormanS-Dyee. "•   ••
Environmental Protection Agency.  -;-<.*'
Interfirst Two Building, 1201 g|"» St.   >.v
Dallas. TX 75270.                   * -
  Copies of the plan are available for.   •.
review at the following locations:  •
  1. Library. Environmental Protection
Agency. Interfirst Two Building. 1201
Ebn St. Dallas. TX 75270.  - -  •>•   . - •*
  2. Texas Department of Agriculture.
Agricultural and Environmental    - —•
Saences Division. Stephen F. Austin
State Office Building, Rm. 1042.17th and
Congress Ave_ Austin. TX 78711.
FOU PUfTTMSK IHFORUA-nOM CSKTACn
Norman E. Dyer (214-787-2734).
SUFPUMENTJM INFORUATtarC The
revised Texas certification plan was    •'•
developed and submitted to EPA for
approval to reflect the changing
responsibilities enumerated in the newly-
enacted Texas pesticide laws and
regulations. Specifically, the Texas
Department of Aanculture is now
resoonsibie for cerancanon of
commercial applicators in Animal
Health and Aquanc categories.

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                    UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                     NCOIONIX
                                  215 Fremont S tract
                               Sen Francuco. Ca. 94105
MEMORANDUM
DATE:  August 15,  1986

SUBJECT:   North  County Resource  Recovery  Associates
           PSD
FROM:
TO:
D«
A:
               Management
rector
on, Region 9
Lee M. Thomas, Administrator
U.S. Environmental Protection Agency
     This  is  in response to the June  3,  1986 remand of
Region 9's April 2, 1985 determination  to  issue a .Prevention
of Significant Deterioration (PSD) permit  to the North
County Resource Recovery Associates for  the construction
of a 1000  ton per day resource recovery  facility.  The
remand charged Region 9 with reconsidering the effects
of unregulated pollutants when making PSD determinations.

     Region 9 has reviewed the relevant  BACT decisions
and has prepared a response to the Administrator's remand,
as recommended in the July 21, 1986 guidance memo, from
Gerald A. Emison, Director, Office of Air Quality  Planning
and Standards.  Our response with supporting materials
is attached.

     If you have any questions regarding the enclosed
materials please contact me at 454-8201  (FTS) or have your
staff contact Wayne A. Blackard, Chief of our New  Source
Section at 454-8249 (FTS).
Enclosures

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                                                                   8.12
                     RESPONSE TO PSO  REMAND
       NORTH COUNTY RECYCLING AND ENERGY  RECOVERY CENTER
                     (PSD Appeal No.  85-2)


      On April 2, 1985 the Director of  the Air  Management
 Division,  EPA Region 9,  made a  determination to  issue  a Prevention
 of  Significant Deterioration (PSD) permit to the North County
 Resource Recovery Associates (NCRRA) for the construction and
 operation  of a 33 megawatt,  1000 ton per day resource  recovery
 facility.   During the following appeal period  EPA received
 three petitions filed pursuant  to 40 CFR 124.19  requesting  the
 Administrator to review  Region  9's decision to issue the PSD
 permit.  The Office of the Administrator reviewed the  petitioners'
 comments and Region 9's  responses to the comments and  determined
 that  Region 9 had satisfactorily addressed all of the  petitioners'
 allegations with the exception  of Region 9's assertion that EPA
 lacked  the authority to  "consider* pollutants  not regulated by
 the Clean  Air Act when making a  PSD determination.  The Adminis-
 trator  felt that Region  9's  assertion was overly broad and  that
 when  making a PSD determination,  in particular a best  available
 control  technology (BACT)  decision, a permitting agency must
 consider not only the environmental impact of  the controlled
 regulated  pollutant but  must also consider the environmental
 impacts  of any unregulated pollutants that might be affected by
 the choice of control technology.  For this reason the Adminis-
 trator  remanded the PSD  determination to Region  9 for  recon-
 sideration and action consistent  with the above  interpreta-
 tion  of  EPA authority.

      In  response to the  above,  Region 9  has reviewed the BACT
 decisions  made for the NCRRA PSD  permit.  Under  the PSD regula-
 tions NCRRA must apply BACT  to  control emissions of SO?, NO,,
 lead, mercury,  and fluorides from their  proposed resource
 recovery facility.   BACT is  defined in the Clean Air Act as
 "...an emission limitation based  on the  maximum  degree of
 reduction  of each pollutant  subject to regulation under this
 Act...on a  case-by-case  basis,  taking into account energy,
 environmental  and economic impacts and other costs...• Under
 environmental  impacts our review  of the  original. BACT  determination
 included the impacts from both  regulated and affected  unregulated
 pollutants.   The control of  particulates, CO,  and VOC  emissions
 are not directly subject to  the  federal  PSD BACT review, but
are subject  to  the  nonattainment  permitting regulations which
are administered by the  San  Diego Air Pollution  Control District.

     NCRRA  is  proposing  to use  a  dry scrubber  with a baghouse
 to control  emissions of  S02,  acid gases, and particulate matter
 from  the proposed resource recovery project.   The dry  scrubber
consists of  a  spray dryer  and a  baghouse.  The spray dryer  injects
an atomized  lime slurry  sorbent  into the flue  gas stream.   The
baghouse removes the dried sorbent and flyash  (particulate  matter)
 from the flue  gas.   The  dry  scrubber will be designed  for a
 flue gas flow  of 225,000 acfm at  an inlet temperature  of

-------
 340 degrees P and a maximum outlet temperature of 265 degree! P.
 NCRRA expects the dry scrubber system to provide 83% removal  of
 SO2 and 95% removal of acid gases as well as 99.5% removal  of
 particulatee.

      Recent tests of emissions control  devices for waste fired
 boilers (the latest being the  Quebec City Test Program)  have
 shown that properly designed and operated control devices can
 significantly reduce emissions from resource recovery facilities.
 Zn particular/ an acid gas scrubbing system operating at optimal
 stoichiometric ratios, at low  temperature, in tandem with a
 baghouse can achieve very high removal  efficiencies of particu-
 lates,  S02r HCl, organics, and heavy metals.  The tests  indicate
 that the NCRRA's proposed emission control system (lime  slurry
 spray dryer, baghouse, low temperature  flue gas)  is the  most
 efficient for controlling the  unregulated pollutants from a
 resource recovery facility.  While certain technologies  may have
 the potential for greater removal of regulated pollutants (e.g.
 a  wet scrubber may yield greater S02 removal), available data
 suggests that greater control  of unregulated pollutants  will
 not result.  Region 9 believes that the NCRRA's proposed control
 technology will have very high collection efficiencies of
 dioxins, furans, and heavy metals,  with collection efficiencies
 of 95%  for HCl,  and greater than 90% for mercury.   We conclude
 that a  lime slurry spray dryer with a baghouse provides  the
 greatest degree of control currently achievable for the  relevant
 air toxics concerns and  therefore,  emission limitations  based
 on the  operation of a lime slurry spray dryer with a baghouse
 and continuous emission  monitors constitute BACT for the control
 of S02,  lead,  mercury, and fluorides from the NCRRA facility.

      In  addition to the  proposed acid gas BACT, Region 9 also
 reviewed the BACT decisions  made for controlling NO, emissions
 from the NCRRA facility.   NCRRA has proposed to control  NOX
 emissions  with  low excess air .and staged combustion.  After
 reviewing  all  of the available  control  technologies. Region 9
 believes that  the alternate  HOZ control  technologies currently
 available  for  resource recovery do  not  offer any better  control
 of the affected  pollutants (organics such as dioxins and furans)
 than  do  the controls proposed  for the NCRRA facility.  Our
 review  included  staged combustion,  selective non-catalytic
 reduction,  selective catalytic  reduction,  wet flue gas de-
 nitrification, and the different  categories of source separation*.
Our review  also  took into account  the effects of  the district
 permit requirements designed to reduce  organic toxic pollutants
 (minimum 1800•  P furnace  temperature and minimum 2 second
 residence  time  in the combustion  zone).   We conclude that an
 emission limitation based on the  use of  low excess air and
 staged combustion and with continuous emission monitors  is  BACT
 (considering the  effect of unregulated  pollutants)  at this  time
 for the control  of NOX emissions  from the NCRRA facility.

      As  part of  our BACT  review  of  the  NCRRA PSD permit, Region 9
prepared several  charts  listing  the  available S02  and NOX control
options  for  the  SCRRA  facility,  ranked  in order o£ control

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                             -3-
effectiveness, witth  the extimated  impacts of the controls on
the projects1 other air pollutants.  The charts were prepared
using data  from existing Region 9 PSD permits, permit applications,
district permits, emission control  technology reports from the
California  Air Resources Board and  the Hew York City Department
of Sanitation, and from reports on  the Quebec City Test Program.
The impacts on other  pollutants were estimated using our best
engineering judgement based on the  available data.  We have
included these charts with this report for your review.

     After  reviewing  the above facts, Region 9 has concluded
that no greater controls for the regulated pollutants can be
applied that would be more effective in reducing the emissions
of.unregulated pollutants.  Therefore, the BACT proposed by NCRRA
and the BACT decisions made by Region 9 in the April 2, 1985
PSD determination are reaffirmed as BACT for controlling S02.
NOX, lead, mercury, and fluoride emissions from NCRRA's
proposed North County Recycling and Energy Recovery Center.

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                                                                   3.12


                              -4-
                          REPERENCES
1.  Air Pollution Control at Resource Recovery Facilities,
overy
24, IS
     California Air Resources Board, May 24, 1984.

2.  Clarke, Harjorie J., Enisalon Control Technologies for
     Resource Recovery, New York City Department of sanitation,
     March 15, 1986.

3.  Ray, D.J., Plnkelsteim, A., Klicuis, R., Masentette, L.,
     •The National Incinerator Testing and Evaluation Program:
     An Assessment of A) Two-Stage Incineration B) Pilot
     Scale Emission Control*, Presented at the 79th Annual
     Meeting of the Air Pollution Control Association,
     June 22-27, 1986, Minneapolis, Minnesota.

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                             EPA Region 9 - New Source
                                       BACT ANALYSIS
                    (Ranked in Decreasing Order  of  Control  Effectiveness)
Project Categoryt Resource1   >    v
Project Typet  1113 TO). I
Pollutants
Datei   Aug 15f 1986
Project Engineer!   Bob Baker
Control Optiona
Spray Dryer, Alkaline
Slurry, Baghouse
Spray Dryer* Lime Slurry*
Baghouse
Spray Dryer, Alkaline
Slurry, ESP
Dry Injection, Sodium
Sorbent, Baghouse
Spray Dryer, Line Slurry,
ESP
Dry Injection, Lime,
Baghouse
Mat Scrubbing, Alkaline
Dry Injection, Sodium
Sorbeht, ESP
Dry Injection, Lime, ESP
% Control
80-95
75-90
75-90
70-85
65-85
65-80
50-90*
50-75
40-70
Emission
Rates
Iba/ton
(POT) U
0.26-1.04
(9-35)
0.52-1. 30
(18-44)^
0.52-1.30
(18-44)
0.78-1.56
(26-53)
0.78-1.82
(26-62)
1.04-1.82
(35-62)
0.52-2.61
(18-88)
1.30-2.61
(44-88)
1.56-3.13
(53-106)
Emissions
(tons/yr)
53-212
106-265
106-265
159-318
159-371
212-371
106-530
265-530
318-636
Control Effectiveness on
Other Pollutants
Heavy
Metals
Exc
Exc
good
Exc
Good
Good
Poor
Pair
Pair
Dioxin
Purana
Exc
EXC
good
Poor
Good
Poor
Poor
Poor
Poor
Hd
Exc
Exc
EXC
EXC
EXC
EXC
EXC
Exc
Good
Hg
Good
Good
Pair
Poor
Pair
Poor
Pair
Poor
Poor
Lead
Exc
Exc
Good
Good
Good
Good
Pair
Pair.
Pair
(1  Corrected to 12% O>2, 24 hour average
                                                                                                                       no

-------
EPA Region 9 - New Source Section
BACT ANALYSIS
(Ranked in Decreasing Order of control Effectiveness)
Page 2
Control Optione
Dry injection. Limestone,
ESP
Met Scrubbing. Water
Source Separation
•
% Control

25-40
20-30
5-10
emission
Rates
IDs/ton
(nxn) (1
3.13-3.91
(106-132)
3.65-4.17
(124-141)
4.69-4.95
(159-168)
Emissions
(tons/yr)
636-795
742-848
954-1007
Project C
Project T
Pollutant
Dates
ategoryi Resource Itetv ™
yi»« 1113 Wu, HJF. is MU
« a>»
Aug IS. 198S 	
Project Ekigineert Bob Baker



control Effectiveness on 	 ""
Other Pollutant^
Heavy
Metala
F*ir
Poor
Poor
t
Dloxin
Furans
Poor
Poor
Fair
Ii3 	
Good
Fair
Fair
" HQ
Poor
Poor
Poor
Lead
Fair
Fair
Poor
(1  Corrected to 121 O>2, 24 hour average.
                                                                                                                        CO

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                             U>A Region 9 - New Source &    jn
                                       BACT ANALYSIS
                   (Ranked in Decreasing Order ok Control  Effectiveness)
Project;  North County RRF     	
Project Category. Resource    overy
Project Type;  1113 TPD. I    36 HH
Pollutant:	NOfc	  '
Date:	Aug 15, 1986	
Project Engineer;  Bob Baker	
Control Options
active Catalytic
duct loo (SCR) (2
Flue Gas Denitrtfica-
on (PGDn) »2
active Non-Catalytic
duct ion (SNCR)
Exceae Air/Staged
mbustion
e Gas Recirculation

rce Separation
% Control
90-95
80-90
30-60

90-35

10-15

Minimal
Bnission
Rates
Ibs/ton
(ppn) (1
0.31-0.61
(15-30)
0.61-1.21
( 30-60)
2.43-4.25
(110-200)
3.94-4.25
(185-200)
5.16-5.46
(240-260)

Emissions
(tons/yr)
65-129
129-258
473-860

795-860

1032-1118


Control Effectiveness on
Other Pollutants
Dioxin
Furana
Uhk
None
None

Uhk

Worsen

Fair
VOC
Poor
None
None

Uhk

Nor sen

Poor
00
Poor
None
None

Unk

Worsen

Poor
Heavy
Metals
None
Poor
None

None

None

Poor










(1  Corrected to 12% O02, 24 hour average.

(2  'Nils control technology has not yet been applied to refuse combustion, and has not been considered as a
    transferable technology due to as yet unresolved technological problems.
                                                                                                                      u>
                                                                                                                      •
                                                                                                                      »-•
                                                                                                                      f\J

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                                                                      8.13
/s>
12B/
X, mat/
               UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                REGION IX
                             21 5 Fremont Street
                          Sen Francisco. C«. 94105
                                   10, 1986
Mr. R.J. Sommerville
Air Pollution Control Officer
San Diego County Air Pollution
  Control District
9150 Chesapeake Drive
San Diego, CA  92123
Dear Mr. SooMrVille:
     This is a follow-up to our June 27^1986 letter to you
regarding the June 3, 1986 remand of the North County Resource
Recovery Associates PSD permit in San Marcos, California.

     It is the initial opinion of EPA that PSD permits should
not be issued to new sources by any permitting agency unless
the project's proposed BACT represents the greatest degree of
control currently achievable for unregulated pollutants emitted
by that category of source.  EPA suggests the following:

     • If the project's proposed BACT does not consider the
       control of unregulated pollutants, then the PSD permit
       should be placed on hold pending guidance from EPA
       Headquarters on the implementation of the remand decision.

     • If the project's proposed BACT considers the control
       of unregulated pollutants, then permitting can proceed
       provided a condition is added to the PSD permit as
       suggested in the attachment.   This condition may be
       deleted from the affected permit at a future date when
       all  issues related to the remand have been addressed by
       the  applicant and the permitting agency.

-------
                                                                     8.13
                            -2-
      Purther  guidance  regarding  this  matter will be  forthcoming,
If you  have any  questions,  please call Wayne Blackard, Chief of
our New Source Section,  at  (415) 974-8249.

                               Sincerely,
                               David P. Hovekanp
                               Director
                               Air Management Division
Enclosure

-------
                Suggested  Permit Condition

Control  of Unregulated  Pollutanti
Should additional  guidance  relating to the June 3, 1986
PSD remand, applicable  to this permitting action, be
developed, (company nane) shall provide to (agency name)
any such analysis, data or  demonstration of compliance
with other requirements vithin the tine required by such
guidance.

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                                                                    8.13
 [A]
 NT. Je»se X.  Xkeda *Mr. Xkeda*
 Deputy Director for tnvironaentel
   Health
 Hawaii Department of Health
 Environmental Protection and
   Health fervicee Division
 P. O. Bos 3378
 Honolulu, HX  96801

 CA3
 Mr. David J. Minedev "Mr.  Mined***
 Director
 waahoe County Air Foliation
   Control District
 1001 B. Ninth
 Reno,  NV  89520

 CA]
 Mr. Richard B. Booth "Mr.  Booth*
 Air Pollution Control District
 Shasta County Air Pollution
   Control District
 18S5 Placer Street
 Redding,  CA  96001

 CA]
 Lawrence  Hart,  M.D.,  M.F.fl. *Dr. Bart*
 Air Pollution Control Officer
 Santa  Barbara County  Air
   Pollution Control District
 315  Canlno del Remedio
 Santa  Barbara,  CA  93110

 CA]
 Mr.  R. J.  Soawervtlle "Mr.  Somerville'
 Air  Pollution Control Officer
 San  Diego County Air  Pollution
  Control  District
 9130 Chesapeake Drive
 San Diego, CA 92123

 CA]
 Mr. Donald R. Rowe *Mr. Rove"
Air Pollution Control Officer
 Fresno County Air Pollution
  Control District
 1220 Pulton Mall
Preeno, CA  93721

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                                                                        8.13
 CA]
 Nr. Js*as K. Zkeda "Mr. Xkeda'
 Deputy Director for Bnvironaental
   Health
 Hawaii Department of Health
 Bnviironaental Protection and
   Health Services Division
 P. 0. Box 3378
 Honolulu. HZ  96801

 CA]
 Mr. David J. Minedew "Mr.  Mlnedew*
 Director
 Waahoe County Air Pollution
   Control District
 1001 B. Ninth
 Reno. MV  89520

 CA]
 Mr. Richard B.  Booth "Mr.  Booth*
 Air Pollution Control District
 Shasta County Air Pollution
   Control District
 1855 Placar Street
 Radding.  CA  96001

 CA]
 L*wr«nc«  Bart*  M.D.*  N.P.B. 'Dr. Bart*
 Air Pollution Control Officer
 Santa Barbara County  Air
   Pollution Control District
 315 Canine del  Ramedio
 Santa Barbara,  CA  93110

 CA]
 Mr. JU J.  SoBeaerville "Mr.  Soneerville1
 Air Pollution Control Officer
 San Diego County Air  Pollution
  Control  District
 9150 Chesapeake Drive
 San Diego. CA  92123

 CA]
 Mr. Donald R. Rove *Mr.  Rove*
Air Pollution Control  Officer
 Fresno County Air  Pollution
  Control District
 1220 Pulton Mall
Fresno, CA  93721

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                                                                     8.13
 [A]

 ?f * !f}ton '«ld"«in "Mr. feldetein'
 Air Pollution Control Officer
 Bay ATM Air Quality
   Management District
 939 Illle Street
 San Francisco, CA  94109

 CA]
 Mr.  Lowll Shlflay -Mr.  Shlflcy"
 Air  Quality Officer
 Nevada Department of Conservation
  and  natural  Recoureee
 01vieion  of Environmental
  Protection
201 South Fall Street
Caraon City, NV   89710

-------
                                                                     8.13
 JUN 27 686

 Mr. David J. Miaedew
 Director
 Waahoe County Air Pollution *
   Control District
 1001 E. Hinth
 Reno, MV  89520

 Dear Mr.  Minedewi

      On June 3, 1986.  the Administrator issued a remand of
 th« North County Resource Recovery Associates PSD permit to
 the Region 9 office.   On June  24.  all Regional offices of EPA
 were notified by the Office of General Counsel that the
 decision  embodied in this remand should,  at  a minimum, be
 applied to all PSD applications currently in process  (i.e. at
 least those> projects that have not yet received a final permit)
This  requirement also  applies  to PSD  programs delegated to
State or  local agencies.

     Guidance on how to  Implement  this decision should be
forthcoming  from EPA headquarters  in  approximately two weeks.
Since BACT determinations for  all  permits  are potentially
impacted, you are requested to not issue  any  proposed or
final permit  until this guidance is provided  to your agency.

     Please call me if you have any questions.
                               Sincerely.
                               OIKDiAL
                               David P. Rowekamp
                               Director
                               Air Management Division

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                                                                    8.13
CA3
Mr. Milton Feldstein 'Mr. Feldstein1
Air Pollution Control Officer
Bay Area Air Quality
  Management District
939 Ellis Street
San Francisco* CA  94109

CA3
Mr. Lowell Shifley 'Mr. Shifley-
Air Quality Officer
Nevada Department of Conservation
  and Natural Resources
Division of Environmental
  Protection
201 South Fall Street
Carson City, NV  89710

-------
       i          UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
\ ^JZ •                  Office of Air Quality Planning and Standards
\     /                 Hesearcn Triangle Park, Nortn Carolina 27711
      -
   MEMORANDUM
   SUBJECT:   Draft  Prevention of Significant Deterioration  (PSD) Guidance for
             Impacts of the North County&ource Rpdovery  PSD Remand
   FROM:     Darryl  D. Tyler. Di
             Control Programs DeveloprnertrDiyfsion (MD-lb)

   TO:       Winston A.  Smith, Director                .  .
             Air, Pesticides, and Toxics Management Division
             Region IV

        We are writing in response  to your comments on the subject draft
   guidance!  Inihose9 consent's, you cited concerns about the applicabi lit, r  of
   the  remand and the need for a consistent scientific basis to use in deter-
   mining negative health effects of unregulated pollutants.  While we share
   Jour latter concerns as a long term ^«e%we find your suggestions
   difficult to address in the near term, as  is discussed below.

        Within the  draft policy,  our  recommendation regarding transition is
! s
a new
                                           1
    delays and confusion beyond that typically '"
    activity.

         You also suggested thata consistent scientificbasisfor deter»jnin9
     e«   E^en ?r2e cJSldettle significant issues such as how to
    thl"ealth effectl due to various pollutants  and how to re ate quMt};«-
    M^elv these iSacts to the BACT decision  process, this guidance could no
    Solace thlcStbyUase nature of the BACT requirement in the Clean Air
    Art    It ray well be that no one scientific basis for determining health
    Sfects win emerge and that such effects  will  need to be evaluated on a
    case-by-case basis.  In the meantime, we cannot freeze the permitting

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                                                                              a.14
process while awaiting the results of the scientific debate.  Therefore,
while we agree that your suggestion warrants consideration in the development
of our long term policy, we continue to believe that the case-by-case
strategy advocated in the draft is a reasonable interim approach.

     To summarize, we agree philosophically with several of your comments
but continue to believe that our suggested approach is the appropriate
one for the immediate future.  We do appreciate your participation in the
development of interim policy pursuant to the remand and look forward to
receiving your input as we develop long-term policies affecting currently
unregulated pollutants.  If vnu have any further..comment on this policy,
please contact Michael Trutna of my staff at" 629-~559"n

cc:  G. Emison

-------
                                                                            8.15
                               April  23, 1987
NOTE TO REGIONAL NSR CONTACTS

     Many questions raised in the past regarding the appropriateness of
certain economic arguments in the best available control technology (BACT)
analysis are addressed only vaguely (if at all) in existing EPA policy
material.

     Attached is a policy memorandum (and the incoming request) just issued
by this office.  This policy memorandum responds to questions raised by
Region IV.  Other Regions have indicated that they are faced with similar
questions.  We feel that this policy memorandum provides some badly needed
guidance in this area.

     To be most effective this policy memorandum should be as widely distributed
as possible to those directly involved in BACT determinations.  Therefore,
if at all possible, please mail a copy of these memoranda to all of your
State and local agencies for their use.

     Our response is derived in large part from the knowledge and information
provided by many of you.  I would like to take this opportunity to express
my appreciation for that input.
Attachments

cc:   Bob Sauman
      John  Crenshaw
      Sally Parrel!
      Greg  Foote
      Tom Helms

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                                                                                S.I5
     -
      \        UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

       3               Office of Air Quality Planning and Standards
                      Research Triangle Park. North Carolina 2771 1
                                APR -j 5 "3 7
MEMORANDUM

SUBJECT: Huntsvllle  Incinerator - Determining Best Available Control
         Technology  (BACT)

FROM:    Gary McCutchen, Chief
         New Source Review Section, CPOD (NO-IS)

TO:      Bruce P. Miller, Chief
         A1r Programs Branch, Region IV

                                                      •

     This 1s 1n response to your March 30, 1987, memorandum regarding
the BACT determination made by the Alabama Department of Environmental
Management (AOEM) for the proposed Huntsvllle Incinerator facility.

     It Is difficult to provide a detailed response to the significant  and
complex questions and Issues you have raised within the relatively short
turn-cround time that you have specified.   However, our initial  review  of
the Information submitted indicates that the Region's position  (I.e., the
use T}f acM gas scrubbing as BACT for municipal  waste Incinerators)  is
consistent with emerging national policy and current BACT analysis for
similar facilities.

     We have reviewed the arguments presented by the applicant  and
ADEN.  Although certain of the criteria used 1n  the BACT decision are
acceptable, many of the reasons given for not requiring acid gas controls
are unacceptable—even within the context  of a case-by-case analysis.
Specifically:

     1) The fact that the new source performance standard (NSPS) for this
source category (40 CFR 60, Subpart Ob, June 19, 1986) does not  require
sulfur dioxide (SOg) scrubbing should not  influence the BACT analysis.
In a BACT analysis, an NSPS simply defines a minimal  level  of control.  The
fact that a technology was not selected for the  NSPS (or that a  pollutant
is not regulated by the NSPS) 1s in no way Indicative of the qualifications
of a technology as a BACT candidate.  The  only reason for comparing
control options to an NSPS 1s to determine whether the control  option
would result 1n an emissions level  less stringent than the NSPS.  If so,
that option Is unacceptable.

-------
                                                                             3.15
      2)  It is not correct to factor into tne BACT analysis the contention
 that  the proposed facility would  be less polluting than any coal-fired
 boiler Redstone Arsenal  would contemplate building if steam were not
 available from the proposed facility.   Any emitting facility constructed
 by  Redstone Arsenal  would be a separate source and would be required to
 comply with all'applicable environmental  regulations.  If the Redstone
 Arsenal  were to constuct a coal-fired  facility or its own incinerator, it
 would also have to apply BACT.   In  fact,  BACT for a coal-fired boiler
 might result in lower emissions than would a steam-producing incinerator.

      3)  In regard to ADEN'S argument that the Huntsville plant would
 produce  steam which  is a less valuable commodity  than the electricity
 produced at other similar plants, it is  difficult to determine the validity
 of  the argument without  a detailed  economic  assessment.   Even though
 electricity may be a more valuable  product than steam (for some municipal
 waste Incinerators), steam is cheaper  to  produce  both from the point of
 capital  and annualized costs.   Depending  on  the purchase price  of the
 steam, it may even be a  more profitable  alternative for  those facilities
 where a  buyer for the steam is  on hand.

      The ADEN has indicated that since the steam  purchase agreements  are
 already  signed it is not possible for  the  applicant  to consider raising
 the purchase price or  the steam to  defray  tne  increased  tipping cost  that
 the applicant contends would  result  from the cost of SOg controls.   In
 most  cases,  this  type  of argument should be  ignored.  A  reviewing agency
 1s no more bound  by  an applicant's  unfounded assumption  regarding what
 level of control  Mill  constitute BACT  than a bank is  bound  by an assumption
 of a  certain interest  rate  on the applicant's  loan  or a  supplier by  an
 assumption  on the applicant's part  regarding the costs of materials or
 equipment.   This  is  one  case where  it  it  acceptaoie  for  a BACT  determination
 to make  it  uneconomical  for a source to construct.

      The EPA has  no  choice  other than  to  Ignore such arguments.  If
 financial  agreements  like this were taken  into account,  applicants could
 simply sign  contracts based on meeting the NSPS or  even  using  no control
whatsoever,  then  use those  contracts to justify the  level of control
that  they preselected.

      In  further response to the specific questions  raised in your memo:

      1)  The  document titled  "Guidelines for Determining  Best Available
Control Technology (BACT)/ dated December 1978, was  issued for the
purpose of providing the framework for a consistent  approach in determining
BACT.  The document, however, Is general in its attempt  at defining the
BACT process, and at best focuses on specifying the  parameters which
should be considered in  the BACT analysis.

      In October 1980, EPA published the "Prevention  of Significant
Deterioration Workshop Nanual."  This document, 1n the hopes of bringing
greater consistency to the BACT review process, presented an analytical
format for the BACT analysis.  Although the document  recognizes the need

-------
                                                                             8.15
for evaluating BACT on a case-by-case basis, it does provide more specific
guidance than the 1978 document in defining how economic, energy, and
environmental factors are to be evaluated.  If applied correctly, the
methodology described in the workbook should result in a BACT determination
consistent with the definition of BACT and acceptable to EPA.

     Probably the best method of determining BACT, an approach that
assesses BACT starting from the most effective control option available,
is being successfully implemented by some State and local agencies.  This
approach, in conjunction with the PSD workshop manual, can be used to
evaluate the State's proposed BACT decision.  For further information on
the implementation of this approach, contact Wayne A. Blackard,  Chief,
New Source Section. EPA Region IX (FTS 454-8249).

     2)  As you have pointed out, States are to decide how their
environmental resources (such as increments) are used.  A State  may,  for
example, decide that a proposed source would consume too much- Increment
and therefore prevent that source from being built or allow it to oe
built only if increment consumption is further reduced.

     The BACT determination, however, is made totally independent or  the
amount of Increment or air resources available.  The environmental  impact
aspect of BACT 1s designed to ensure that a more costly control  system .
will result In a decreased environmental Impact (e.g., fewer emissions,
smaller impact area, lower maximum ground level concentration, etc.).
This environmental assessment should not be confused with the concept of
using up the increment by "relaxing" BACT, a concept that EPA does not
accept.

     Once determined, BACT can only be made more stringent (not  less) by
environmental considerations.  Examples Include cases where BACT is not
stringent enough to prevent exceedances of a national ambient air quality
standard (or an Increment) or where the State will not accept the level
of control selected as BACT and demands more stringent controls  to preserve
increment.  In both cases, the source has a choice of locating elsewhere
or reducing either its emissions or Its impact.  Efforts to reduce emissions
bring about the "technology-forcing" aspect of BACT and lowest achievable
emission rate that Congress envisioned as part or a system designed to
hold new emissions to an absolute minimum.  If it works, the "forced"
technology will likely become the new BACT level of control.

     Possible grounds for overturning a BACT decision Include an
Inappropriate review (e.g., BACT procedures not correctly followed, BACT
decision not correctly justified), an Incomplete review, a review based
on false or misleading Information, or a permit which is not enrorceaoie
as a practical matter.  This is not a complete 11st; these are just some
of the most common problems.

     3) The PSD Workshop Manual also addresses tnis point by recognizing
that "additional financing required for an alternative control strategy
may jeopardize the financing of the entire project."  However,  the
workshop manual also points out that "Information is available on the

-------
                                                                            3.15
value of various emissions reductions that EPA and affected industries
generally agree are reasonable."  Since an applicant can bias the economics
of a proposed project towards a less stringent control  option, it is best
in nearly all cases to evaluate the costs of controls against established
norms.  Many State and local agencies currently evaluate 8ACT proposals
aaainst dollars oer ton criteria or against acceptable control costs for
the category of source in question. This helps to ensure that the applicant
does not bias the economics of the project against an otherwise acceptable
control option.  These types of approaches help to bring nationwide
consistency to the BACT determinations while still allowing for a case-by-case
determination.

     The burden of proof always rests on the applicant to demonstrate why
a generally accepted and established control option is unacceptable for
the proposed project.  The demonstration deserves special scrutiny when
the applicant claims that an established control option would prevent the
source from being constructed.  It should be noted that the reason for
applying economics to the source category overall and then requiring
extensive justification for less stringent control for an individual
facility 1s that EPA cannot be placed 1n the position of allowing less
stringent (or no) controls simply because an applicant cannot afford what
similar sources are required to use.

     Economic considerations will vary from project to project, but
within the sane general source category, construction and operation costs
should not vary to the extent that the requirement to apply an established
control option can stop a project.  This type of argument generally is
not acceptable.  In most cases, a source simply should not be granted  a
permit if financing Is inadequate for proper controls.

     The caveat in existing BACT guidance about stopping a project  1s
intended to  prevent BACT determinations by a reviewing agency that  are so
much more expensive than the norm that a typical  source could not  reasonably
be  built.  Examples might  Include requirements  for a series of two  or
more  baghouses or  a control system whose cost greatly exceeds that  of  the
base  facility.

      4) The  Region's  nonacceptance of the  "alternative  build  scenario" appears
appropriate  in  this ease.

      If you  have  any  questions  regarding  this matter, please feel  free to
contact me  at FTS  629-5592, or  have  your  staff  contact  David Solomon at
FTS 629-5375.


cc:  HSR  contacts

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                                                                             3.15
             UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                                  REGION IV

                             343 COURTLAND STREET
                            ATLANTA. GEORGIA 10383
MEMORANDUM
DATE:   '       'T37

SUBJECT:  Huntsville Incinerator - Determining BACT Under PSD
FRCMt  Bruce P. Miller, Oiief
       Air Programs Branch
       Air, Pesticides, and Toxics Management Division

TO:  Gary McCutchen, Chief
     New source Review Section
     Office of Air Quality Planning Standards

SUMMARY;

The purpose of this memorandum is to provide you with background information
concerning the circumstances surrounding the proposed BACT for the Huntsville
incinerator and solicit Headquarters' guidance and interpretation of the
December 1978 "Guidelines for Determining Best Available Control Technology
(BACT)* as it relates to the Huntsville Incinerator facility.
On December 31, 1986, the Ala**"1"" Department of Environmental Management
(ADEN) submitted a draft PSD preliminary determination (Attachment I) for
the Huntsville Municipal Incinerator.  The proposed project will process
690 tons/day of municipal solid wasta (NSW).  The MSW, along with dried
sewage sludge will be orocessed in two (2) 345 tons/day units which will
generate steam to heat the Redstone Arsenal.  The draft preliminary deter-
mination set forth BACT emission limits for the regulated pollutants subject
to review.  In oarticular, the emission limits set were 0.02 gr/dscf cor-
rected to 12% CO? for particulate matter and 0.28 Ib/mnBtu for sulfur dioxide
(SO2).  No emission limits were required for the nonregulated pollutants.
Acid gas controls were not required to be installed.

The reasons given by the ADEN for not requiring acid gas controls for SC?
and H2S04 emissions at the Huntsville plant were as follows:

0  First, the Huntsville plant would produce steam while most of the other
   plants produce electricity, which must be purchased by the appropriate
   utility at the avoided cost to the utility.  Second, the tipping fees
   currently charged elsewhere are generally several times the rate charged in
   Huntsville.  The tipping fee generally reflects the availability of land
   for siting a landfill.  A low tipping fee reflects the availability of low
   cost land, while a high fee reflects the opposite.

0  Secondly, EPA proposed sulfur dioxide (40 CFR 60, Subpart Ob, June 19,
   1986) emission standards for industrial-ccmnercial-institutional steam
   generating units under NSPS.  An emission limit was not proposed for
   sulfur dioxide or the other gases in question from this type af unit,
   MSW-fired boilers, which indicates that no control equipment was con-
   sidered appropriate.  Sulfur dioxide emissions would be low due to the
   inherent low sulfur content of MSW.

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                                                                               8.15
                                    -2-
0  Thirdly, ADEM's BACT detennination included olans by Redstone Arsenal
   to build a coal-fired boiler(s) if stean cannot be purchased Eron  the
   Kuntsville incinerator.  Installation of a coal-fired boiler(s) with
   equivalent stean production by Redstone Arsenal would result in sulfur
   dioxide emissions* 1.5 to 3.0 tines higher than emissions frcm the  proposed
   MSW-fired and package boilers.  Because of these factors and the inherent
   low sulfur content of the MSW fuel, an 0.28 Ib/ramStu SO2 emission  limit was
   determined to be BACT for the MSW boilers with no acid gas control.

On February 10, 1987, EPA met with representatives from the ADEM, the City
of Huntsville, and consultants to the City to discuss any comments that EPA
had on the draft preliminary determination.  (Attachment II is a list of the
comnehts EPA presented to ADEN and the other parties).  The discussions pri-
marily focused on whether the installation of acid gas controls were  war-
ranted and should be required.

ADEM and City officials presented the agrument that the installation  of
acid gas controls in addition to particulata emission controls would  cause
the tipping fee to go from S4/ton to $21/ton of garbage disposed.  For the
installation of only particulate emission controls, the tipping fee would
rise to $9/ton of garbage disposed.  The ADEN stated that the imposition of
the installation of acid gas controls would kill the project and require
the City to revert back to the landfill for disposing' of its refuse.  Further-
more* ADEN argued that if the incinerator was not built and the steam was
not able to be generated, the Redstone Arsenal would have to rebuild  the
existing coal-fired boiler or replace it as it is presently in violation of
the existing SIP.  operation of the existing coal-fired boiler would  cause
more pollutants to be emitted to the atmosphere than frcm the incinerator
project.

SPA informed ADEM and the City of Huntsville at the meeting that the  PSD
regulations do not a3*"»« the issue of whether a project goes forth  or not
but only that the BACT is employed while taking into account energy,  environ-
tental, and economic Impacts and other costs.  We do not feel that PSD regu-
lations allow the flexibility to consider alternative build scenarios in
determining BACT.  In addition, EPA argued that if you consider the impact
frcm the North County Remand on this project regarding the consideration of
hazardous yet unregulated pollutants like dioxins, furans, heavy metals, and
acid gases, the installation of acid gas control is warranted.  Based upon
the incremental cost differential for the installation of the acid gas con-
trols and the anount of pollutants removed, the cost per ton of pollutants
appears reasonable.  For an incremental cost of 52.4M (annualized costs),
1589* tons of pollutants (SO2, BC1, R^SOA' and dioxins) would be removed.
This equates to an incremental cost of $151C/ton ot additional pollutants
removed.
  70% of 321.1 TPY Of S02            I
  90% of 1502.3 TPY Of SCI           j
  90% of 13.1 TPY of H2S04           1-1589 TPY
  90% of 5.4 x LO"4 TPY of dioxin    |

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                                                                              8.15
                                    -3-
Subsequent to this meeting, Mr. Richard Grusnick, ADEN, wrote  EPA on
February 23, 1987, outlining  the major area of disagreement between  our
agencies as it relates to the factors allowed to 'be considered in making a
BACT determination (Attachment III-Feb. letter).  In his letter,  Mr. Grusnick
submitted a copy of EPA's December  1978 policy entitled "Guidelines  for
Determining Best Available Control  Technology (BACT)." Mr. Grusnick's
opinion is that this policy supports the factors considered in his draft
preliminary determination which he  feels provides a large degree  of  latitude
to States in evaluating these factors; specifically:

1.  indirect energy impacts, such as the fact that the solid waste will sub-
    stitute for fossil fuels otherwise burned, may be considered.

2.  Assessing the significance of additional controls based primarily on
    air quality impact is allowed under the policy.

3.  The environmental consequences  of the fact that solid waste oust be
    buried if the incinerator is not permitted is a relevant solid waste
    disposal impact*

4.  The localized economic impacts  are relevant, such as the low  tipping
    fee presently charged by Huntsville when compared to other parts of the
    country.

5.  The guidance contains implications that BACT which would preclude »±e
    operation of a unit would not be expected.

Finally, rtr. Grusnick argues that the 1973 guidelines clearly  envisions.
different levels of control at identical units located in different places
based on different circumstances and,, in fact, different weighing of relevant
factors and identical circumstances.  It is his opinion from reading tne
guidelines that "State judgement and the federal emission standards are the
foundations for the BACT determination".

The issues raised in Mr. Grusnick's February 23 letter are fundamental  issues
with respect to EPA13 role to oversee the State responsibility of implementing
the PSD rules properly.  Although we do not entirely agree with Mr. Grusnick's
arguments, we feel it is important  to raise these issues with  your office and
get Headquarters' interpretation on these issues and whether the  1978 guide-
lines are being interpreted correctly by the ADEN.

Specifically, we would like your office to respond to the following questions:

1.  The guidance for determining BACT under PSD dated December 1973, is this
    current Agency guidance or has  this been superseded?

-------
                                                                               3.15
                                     -4-
 2.  Concerning Mr. Grusnick's point  that  the State's judgment ana the federal
    snission standards are  the  foundation for the BACT determination, EPA
    agrees  that State  judgment  is a  factor in determining BACT.   However,
    it has  been Region IV1 s opinion  that  where a State's judgment concerning
    BACT  emission limits  is inconsistent  with the BACT analysis  considering
    energy,  environmental,  and  economic impacts and other costs  that it was
    our duty to renegotiate changes  in the State permit or overturn that per-
    mit.  Even if the  State followed the  correct procedures for  determining
    a  BACT  emission limitation  out came to a different conclusion than we
    would have (i.e.,  the State BACT emission limitations were less stringent
    than  what EPA would have proposed), Region IV believes it can overturn
    that  permit.  Do you  agree  with  Region IV' s position?  What  is your
    position on Mr. Grusnick's  contention?  Finally,  on what, if any, basis
    do you  believe EPA should overturn a  state PSD permit (i.e., not a dele-
    gation  of the Federal PSD program) pursuant to BACT, and what do you con-
    sider to be our burden  of proof?

 3.  How would you interpret the guidance  which contains implications that
    BACT  decisions should not force new projects  to the brink of cancellation?
    It is Region TV's opinion that if an  appropriate  Level of controls
    represent BACT, we  would not require  additional air pollution controls
    just  for the sake of  control if  it wasn't reasonable'(i.e.,  profitability
    of the project is  independent of the  BACT analysis).  We do  not believe
    that  we  should allow  lesser than appropriate  level of control to be
    installed even if  the profitability of  the project would be  such that
    the project is cancelled.   Do you-agree with Region TV's opinion?

 4.  Concerning Mr. Grusnick's items  1, 2, and 3,  do you agree with his agru-
    ments chat alternative  build scenarios  should be  considered  in determin-
    ing BACT as it relates  to energy, enviromental, and economic impacts
    and then cost considerations?  It has been our position that alternative
    build scenarios do  not enter into the BACT analysis.  Do you agree with
    Region TV's position?

ACTICN;

Please  review the attached  information and  provide responses co  the issues
raised  in this memorandum.  He would appreciate a  response by April 15,  1987,
 if at all possible.

BACKGROUND:

See attached  information.

Attachments

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                                                                     8.15
              UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
     *                Office of Air Quality Planning and Standards
                    Research Triangle Park, North Carolina 2771 1
                                  BUT
MEMORANDUM

SUBJECT: Salt Hater Drift from Cooling Towers

FROM:    Gary 0. McCutchen, Chief
        New Source Review Section, CPOO (MO-15)

TO:     Bruce P. Miller. Chief
        Air Programs Branch. Region IV


     This is in response to your April 10.  1987. memorandum regarding the
detenrinat on of IS? available coStrol technology (BACT)  for the existing
    ™ towers at Florida Power Corporation's Crystal River units 4 and 5.

     Your neno states that cooling tower emissions (parti cul ate matter in
 5   tea result  rt that time they were neither required to apply BACT
 PSD analysis was complete.
     Tn tMc oartleular case, the requirement to apply BACT on an emissions

                     ffiSSSSsS^


 policy guidance Issued on BACT to date.

-------
                                                                                8.16
     This decision should not be considered a precedent   It leaves
undecided nearly all the important issues that would arise in cases where
BACT is actually being derived after a source has been constructed (e.g.,
should retrofit costs be considered, should technology not available then
be considered).

     If you have any questions regarding this matter, please feel free to
contact me at FTS 629-5592 or have your staff contact David Solomon at
FTS 629-5375.

cc:  NSR contacts

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                                                                 8.16
         .UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                           REGION IV
                       349 COURTLAND STREET
                      ATLANTA. GEORGIA 30349
MEMORANDUM

DATE:  '"  -  • 1387

SUBJECT:  Salt Water  Drift From Cooling Towers

FROM:     Bruce P. Miller, Chief
          Air Programs Branch

TO:       Gary McCutchen,  Chief (MD-15)
          New Source  Review  Section

Summary;

Region IV is requiring Florida Power Corporation  (FPC)  to
reevaluate their air  quality analysis  for a previously  issued
PSD permit in order to include the TSP impact from  two  salt
water cooling towers.  At  the time of  the original  PSD  appli-
cation (1979) we overlooked  the requirement that  the  cooling
tower emissions (participate salt emissions)  were to  be
included in  the air quality  analysis.  We discovered  this
oversight as part of  a current environmental  impact assessment
where R-IV is considering  a  requirement that  FPC  add  three
additional cooling towers  to their facility to  prevent  further
thermal deterioration in the Gulf of Mexico due to  the  current
cooling water discharges.  At present, two coal-fired boilers
(Nos. 4 and  5) are each  tied in with a cooling  tower.  Two
other coal-fired boilers (Nos. 1 and 2) and a nuclear unit
(No. 3) are  being proposed for a tie-in to three  proposed
cooling towers.  Before  we can proceed with the additional
cooling tower impact  assessment, we find  it necessary to
determine the additional impact of the two existing-cooling
towers on the PSD increment  and on the MAAQS.

In response  to our requirement, FPC has submitted protocols
for modeling and monitoring  along with a  request  that the
BACT analysis for the cooling towers should be  based  on the
technology at the time the original PSD analysis  was  comple-
ted (1979).  (See attached letter.)  Region IV  concurs  with
FPC's interpretation  that  BACT should  be  based  on the techno-
logy at the  time the  original PSD analysis was  completed.

Action;

Please let us know whether you concur  with our  position that
the BACT determination should be  based on proven  technology
at the time  the original PSD analysis  was completed.   A re-
sponse by April 20, 1987,  is requested.

Enclosure

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 (tO SfcK.                                                                             „  i —
J*    T*                                                                             2. -7


                UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                                     REGION IV

 4APT-AC                        J4S COURTLANO STREET
   „„   „                       ATLANTA. GEORGIA 30363
  JUN  - 3 1987

 CERTIFIED MAIL

 RETURN RECEIPT
 Mr. Halt Walters, President                                  '    j;~.
 NRG/Recovery Group                                               **•••  /*
 1616 Athens Street
 Lakeland, Florida 33802

 Dear Mr. Walters:                                              •  ...

 The United States Environmental Protection Agency (EPA)  notified you by
 letter dated February 11,  1987, that the Prevention of Significant
 Deterioration (PSD) permit issued on September 24, 1986, by the Florida
 Department of Environmental Regulation (DER)  for the construction of
 the Lake County Waste to Energy facility was  deficient.   Furthermore,
 the aforementioned letter  stated that unless  the DER PSD permit was
 modified to reflect what EPA considers to be  Best Available Control
 Technology for the Lake County Waste to Energy facility, EPA may initiate
 appropriate enforcement action to prevent or  delay the construction of
 the facility.  In addition, EPA notified the  Florida DER of EPA's position
 by letter dated February 11, 1987.

 Accordingly, pursuant to Section 167 of the Clean Air Act,  42 U.S. C.
 §7477, the NRG/Recovery Group (Lake County Waste to Energy facility)
 is hereby required to comply with the terms specified in the enclosed
 Administrative Order.

 Should you have any further questions, please feel free  to call me  at
 (404)  347-4727 or Winston  A. Smith,  Director,  Air, Pesticides,  and  Toxics
 Management Division, at (404) 347-^043.

 Sincerely yours,
 Tack E.  Bivan
 Regional Administrator

 Enclosure

 cc:   Mr. Steve  Snail wood,  P.E.,  Chief
      Bureau of  Air Quality Management
      Florida  Department of Environmental
         Regulation

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                                                                3.17
      UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                        REGION IV


In the matter of:                     )

LAKE COUNTY WASTE TO ENERGY FACILITY  )
                                          Order
OKAHUMPKA, FLORIDA
PROCEEDINGS UNDER
SECTION 167 OF THE CLEAN
AIR ACT, AS AMENDED, 42 U.S.C. §7477



                   ADMINISTRATIVE ORDER


     This Administrative Order is issued this date by the

Regional Administrator, Region IV, United States Environmental

Protection Agency (EPA), pursuant to Section 167 of the clean

Air *ct (the Act), 42 U.S.C. S7477.


                     FINDING OF FACT


     1.  The NRG/Recovery Group, Inc., proposes to construct and

operate a Lake County Waste to Rnerqy Facility (Lake County)

in Okahumpka, Lake County, Florida.  The Lake County facility

will consist of two mass burn incinerators which will each

incinerate approximately 250 tons per day of municipal solid

waste.  The'se incinerators will be fueled with a combination

o€ municipal solid waste and wood chips.  These incinerators

will emit particulate matter, sulfur dioxide (S02>, nitrogen

oxides, carbon monoxide, volatile organic compounds, lead,

beryllium, fluoride, sulfuric acid mist, mercury, dioxins,

-------
                                                                      3.17
                           -  2  -

•dibenzofurans, and hydrogen  chloride.  All of the afore-
mentioned pollutants  are  regulated by  the Act except dioxins,
uibenzofurans, and hydrogen  chloride.
     2.  The  area of  construction of the Lake County Waste to
Energy Facility  is located in  an attainment area for all
pollutants regulated  by the  Act.  [40 Code of Federal Regulations
(C.F.R.) §81_.310]   The facility is considered a major stationary
source because its potential emissions (which are subject
to regulations under  the  Act)  are above the Prevention of
Significant Deterioration (PSD) of Air Quality threshold
level.  Consequently, this facility is regulated under the
PSD rules and regulations.
     3.  On March 11, 1986,  the NRG/Recovery Group applied to
the Florida Department of Environmental Regulation (OCR) for
a PSD permit  to  construct and  operate  two 250 tons per day
municipal solid  waste energy recovery units at its Lake County
facility located on Jim Rogers Road in Okahumpka, Florida,
                           f
pursuant to the  Florida State  Implementation Plan (SIP)
[Florida Administrative Code (F.A.C.) Rule 17-2.500 et seq.].
     4.  Cn Nay  20, 1986, in response to said PSD application,
the Florida DER  issued a  Preliminary Determination which
contained, in the State's judgment, the Best Available
Control Technology (BACT)  for  the proposed incinerators.
The BACT Determination contained emission limits for all
applicable-pollutants regulated by the Act and contemplated
that a baghouse  (to control  particulates) in combination

-------
                                                                  8.17
                            -3-

wlth a scrubber (to control acid gases) constituted BACT.
     5.  On July 2, 1986, EPA notified the Florida DER that
f.he SO2 emission limit contained in the Florida DER BACT
Determination may not adequately reflect BACT  (i.e., proposed
SO2 emission limit not sufficiently stringent) and that the BACT
Determination should also consider the effect  of controlling
SO2 on unregulated pollutants such as hydrogen chloride and
dioxin.  Furthermore, EPA informed DER that it was EPA policy
that the control of nonregulated air pollutants may be
considered in imposing a more stringent BACT limit on regulated
pollutants, if there is a reduction in the nonregulated air
pollutants which can be directly attributed to the control
device selected for the abatement of the regulated pollutants.
     6.  On August 15, 1986, DER issued a second PSD Preliminary
Determination with a modified BACT Determination.  The modified
BACT Determination no longer contained the requirement for acid
gas controls, but only required that the applicant leave
space for the acid gas control equipment in the event there
would be a future state rule change for resource recovery
facilities.  Removal of the requirement to employ acid gas
control meant the modified BACT Determination  could not
adequately address EPA's concern about a more  stringent S02
emission limit.
     7.  On September 19, 1986, EPA-notified DER that EPA was
not persuaded by Lake County's contention that municipal
solid waste incineration with acid gas control is not

-------
                                                                   8.17

                            -4-

econonically feasible.
     8.  On September 24, 1986, the Florida DER issued its
Final Detcmi nation and PSD permit to the NRG/Recovery Group
for the proposed Lake County facility.  The Final Determination
and State PSD permit did not require the installation of acid
gas control.
     9.  On October 23, 1986, EPA notified the Florida DER
that EPA did not concur with DER's Final Determination
regarding the issue of BACT.  EPA recommended that the Final
Determination and the Florida DER permit be reissued with a
BACT Determination which reflects state-of-the-art technology
(acid gas control and more stringent emission limitations
for particulate matter and S02).
     10.  On January 30, 1987, EPA-Region IV prepared an
independent BACT analysis, which varied from DER's Final
Determination, in that it contained more stringent emission
limitations for particulate^matter and 502 (achieved through
the use of high efficiency particulate emission and acid
gas controls).
     11.  On February 11, 1987, EPA notified Florida DER that
the DER PSD permit issued to the NRG/Recovery Group for the
Lake County facility on September 24, 1986, was deficient and
that EPA may initiate appropriate enforcement action against
the Lake County facility to prevent or delay the construction
of the facility.
     12.  On February 11, 1987, EPA notified the NRG/Recovery

-------
                                                                  8.17
                            -5-

Group that the Florida D£R PSD permit was deticient and that
unless the DER PSD permit was modified to reflect what EPA
considers BACT, EPA may initiate appropriate enforcement
action to prevent or dc.-J.dy the construction of the facility.

                    CONCLUSIONS OF LAW

     1.  The Administrator of the EPA pursuant to his authority
under Section 109 ot the Act, 42 U.S.C. §7409, promulgated
National Primary and Secondary Ambient Air Quality Standards
(NAAQS) for certain criteria pollutants,  including total suspended
particulate matter, sulfur oxides (SO2),  nitrogen oxides,
carbon monoxide, ozone, and lead. (40 C.F.R. SS5U.4 - 50.12)
     2.  Pursuant to Section 110 of the Act, 42 U.S.C. §7410,
the Administrator of EPA, in 45 Federal Register 52676
(August 7, 1980), promulgated amended regulations for PSD
in areas where the existing air quality is better than
said ambient standards and incorporated said regulations
                          f
into the various implementation plans ot  each state.  The
relevant regulations are codified at 40 C.F.R. §51.24.
     3.  The Florida SIP contains federally approved PSO
regulations, based on the above-referenced PSD regulations,
for such attainement or "clean air" areas.  (F.A.C. Rule
17-2.500)
     4.  The area of construction for the Lake County Waste to
Energy facility is an attainment area for NAAQS for all
pollutants. (40 C.F.R. §81.310)

-------
                                                                    3.17
                             -  6  -
      5.   NRG/Recovery  Group  is  the  owner:  and  operator of  the
 major emitting  resource recovery  facility  in  Lake County,
 Florida,  and proposes  to cor  truct  at that site pursuant
 to the PSD permit issued f   ;-, Lake County Waste to
 Energy facility by Flori     .R on September 24, 1986.
      6.   EPA finds the Florida DER PSD permit issued to
 the Lake  County Waste to Energy facility to be deficient
 in that it tails to require the installation of acid
 gas control.  The Florida DER PSD permit also fails to
 require more stringent emission limitations tor particu-
 late  matter and S02.   These deficiencies invalidate the
 State-issued PSD permit.
      7.   The construction of  the Lake County Waste to
 Energy  facility pursuant to an invalid  permit will violate
 Section  165(a)  ot the Act,  42 O.S.C. $7475(a), and 40 C.F.R.
 551.24.   Consequently,  the  issuance  of  this order,  pursuant
 to Section 167  of  the Act,  42 U.S.C. §7477,  is required
 to prevent such  construction.
     8.   The authority  of the Administrator of EPA pursuant
 to S113(a) of the Act,  42 U.S.C. S7413(a),  to  make  findings
 of violation of  the Florida SIP, to  issue  notices  of  violation
 and to confer with the  alleged violator has been delegated,
 first, to  the Regional Administrator [earlier  delegation
consolidated to Delegations Manual,  No. 7-6 (July 25, 1984)]
 and second,1 to the Director, Air, Pesticides,  and Toxics
 Management Division,  Region IV [earlier delegation consolidated

-------
                                                                    3.17
                            - 7 -

  in  Region  IV  Delegation  Manual, No.  4-2 (M«i-:h  '-5,  1985}].
       9.  The  authority of the Administrv-   •,  ;PA to issue
  orders pursuant  to  Section 167 of the         (J.S.C.  §7477,
  was delegated to the  Regional Admin.'.str &>•...  [earlier  delegation
  consolidated  to  Delegations Manua'   No. 7-J8 (July 25,  1984)].
  The Regional  Administrator, Region IV, has also consulted
  with the Associate  Enforcement Counsel for Air  and the  Director
  of  the Stationary Source Compliance  Division pursuant to
  delegation requirement.

                            ORDER
       Consequently,  based upon investigation and analysis of
  all relevant  tacts, including any good taith efforts  to
  comply,  and pursuant to  Section 167  of the Clean Air  Act,
  42  U.S.C.  §7477, the NRG/Recovery Group, Inc. (Lake County
  Waste to Energy  facility), is hereby ORDERED:
       1.  effective  immediately upon receipt ot this Order,
  not to commence  any on-site^construetion activity of  a
  permanent  nature on its  two 250 tons per day municipal solid
  waste energy  recovery units, including, but not limited to,
  installation  of  building supports and foundations, paving,
  laying of  underground pipe, construction of permanent storage
  structures and activities of a similar nature.
       2.  not  to  commence any on-site construction activity
  until it has  received a Prevention of Significant Deterioration
            •
  (PSD) permit  and Final Determination that incorporates all
V.

-------
                                                                          •3.17
                                    -8-

       the requirements for PSD pursuant to and in e  -    • --a with
       the provisions of Part C, Subpart 1 of the Cl      •- Act, as
       amended, 42 U.S.C. §7470 et. seq.,  the regulation-  promulgated
       thereunder at 40 C.F.R. §51.24 and/or the recul.ition* of the
       federally enforceable Florida State Implementation flan, Rule
       17-2.500 of the Florida Administrative Code, and Chapter 403
       of the Florida Statutes including EPA's Best Available Control
       Technology analysis, dated January 30, 1987 (which addresses
       acid gas control and more stringent emission limitations for
       sulfur dioxide and particulate matter), and;
            3.  to submit,  no later than ten (10)  days after receipt
       of this Order, certification that the prohibition in paragraph
       one (1) of this Order has been observed and will continue to
       be observed until the permit referenced in paragraph two
       (2) of this Order has been issued.   Such certitication
       shall be submitted to:

                                      Winston A. Smith, Director
                                      Air,  Pesticides, and Toxics
                                        Management Division
                                      United States Environmental
                                        Protection Agency
                                      345  Courtland Street, N.E.
                                      Atlanta, Georgia  30365
                                      (404)  347-3043

        JUN - 3 1987                      /^   ff  ,-
                                               ^^
          Date                        Jack E. Ravan
                                      Regional Administrator
•
:*?•=•

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                                                                               3.13
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                 O8I44
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      AZX MAHAGSMZNT DIVI31051
                                         454-8249
      RBGION XX
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     JOHN ULTZLDSR
     382-4724
                                       MM, COM
                                        A-101
     OFTIC2 OF TBZ AOifZSZBTMTOR
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           23,  198?
                                              10
                       INFORMATION POM MNOINQ MCSIMIU
                        MEMAQ1S TO IFA HEAOQUAHTMf
        IUP1COM


        FANAfAX


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        MAMUAL
                          (202) 382*7183 (auto)


                          (202) 3*2-7884 (lUM)

                          (202) 382-7886 (aim)


                            (202) 382-2078
                         (202) 382-2078


                         (202)382-2078

                         (202) 382*2078

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                                                                       a.is

                                                              • •» *•
                                                          MAIL
                                      D.C,;:;              Kj:;J

  Zn the Matter oft
  Roaolultt Resource
    Rscovery facility,

    Applicant
no Appeal so.  86-a
                             RJMAHD

       Sierra  Club, Conservation Council for Hawaii, American lung

 Association  of Hawaii, Lift of the Und, and Jovtph Singer (Peti-

 tioners)  jointly requett r«vi«r of a Prevention of Significant

 Deterioration  (PSD) penait deteraination that will authorise the

 City and County of Honolulu to construct the Honolulu Resource
                                                        I/
  eeovezy Facility (B-Pcver), a mnicipal waste burner*      A

 final decision to issue a permit was made on Vovcafeer 17,  1986,

 by the Hawaii Departaent of Health (BOOB), with IPX Region EC's

 concurrence,  pursuant to a delegation agreement between legion

 XX and BOOR.   BBOR's action in issuing the perait  is subject

 to the review provisions of 40 en {124.19*     because  the
 I/  Birejl Abe also submitted a petition  for review dated
 Seceaber 20,  19M* which this office received on December 30,
 198*3.   The rules require that petitions  for review of a penait
 deterainatioa be filed within 30 days of issuance (plus wiling
 time).   40 cm If 124.19 and  124.20.   Zn  this ease a petition
 had to  be poetsarked by Deceober 20,  1984.  The record contains
 no  evidence of when Mr. Abe  mailed the petition, but the fact
 that the petition wee not received until Docesfeer 30 leade to
 a conclusion  that the petition is untiaely.  Accordingly, the
petition is dismissed.   Additionally,  Z  note that Mr. Abe doee
 -*ot. raise any issues not encompassed  by  Petitioner's petition
  ir review.

 2/  All  rsfsrsncss to the Code of Fsderal Regulations (C7H) are
to  the  1986 edition.
                                                                    • *-

-------
                                                                        S.1S
                                 •*-
  permit ia dooaod to bo to m-i.ned pondt undo O»
  CF* « 1*4.41 »  41 Pod. Bag.  J|,41I (Nay If} 1990).  Ontil Vaviav
  io  complatod  the B-Powar facility it without aa affective permit
  •ad therefore ia not authoriced  to begin construction.
       Petitionort protatt itauaae* of tho porait b«oaui« th«y bo-
  liovo it dooo not roquiro, tt it it fuppofo to, oao of  tho boot
  available control tachnolooy (BACI) for tulAir dioxida  («O2) ^
  and bacauaa thay baliava tha permitting authority did not  avaluatc
  tho iapact of tha 8O2 control tachaology on uaraoulatad pollntaata,
  aa  rcquirad by Sorth County Rateurca Racovarv Aaaociataa. pso
  Appaal  Ho.  85-2 (Juao 3,  1986).   la raaponaa to tho patitioa
  for  ravicv, R«fion IX atataa  that it has raavaluatad  tha racerd
  aad  conaidarad naw laformtiaa oa municipal vaato iaciaaration«
 and  now conclude! that tha  BACT determination for B-Vovar nay
 not  ba appropriata.   In view of tha Hefion'i raaponaa and after
 conaidaring tho patitioa for review aad tho varioua r upon tea,
 Z agraa with tha  Region that HDOH'i BACT determination for SO*
 •ay ba inappropriate.  Alao, tha aaalyaia required by gorth
 County of tho iapact of control! on aaiaaioao of unregulated
 pollutant* appears to ba Inadequate.  Therefore, X an reaanding
 tho  concurrence to tha Xagioa for reconsideration.
3/ Although Patitionara  also daelara  that tha  BACT  determination for
particulate natter  and hydrochloric acid ia unlawful,  their petition
only addresses  the  BACT  determination for SO^  and fails  to provide)
any supporting  arguaents for thess other olaiaa.  Tor  thii reaeon,
tha Region and  HOOH direct  their  responses to  the SO}  BACT determi-
nation and this remand concerna only  the SO3 BACT determination.

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                                                                       3.18
                                                            :-.S5;  . i-
                                •I-
 Piaeuaaioa                           -
                                          •                •
      Before a  major now  facility can be constructed IB aa tftt
 that it meeting, the Rational Ambisnt Air Quality Standards (XRAOB),
 the owner  oust obtain a  PSD permit to oeMtruet and operate the  fa-
 cility.  42 U.i.C. H7470-79.  The Claaa Mr act oondltieM paxadt
 iaauaaea on a  •hewing that tha proposed facility will eoploy BACT
 for each raoulatad pollotaat «aitt«d from it ia aigaifieaat aaouata.
 42 U.S.C.  |747S.  Section 169 of the Act defiaea 1ACT ae  aa
 •emisaioa  limitation reflectiae the maxima degree of reductioa*
 that the "permitting authorityt* on e aeaae-by-ceao baiii,
 taking into account energy,  environmeatali  and economic impact*
 end other coeta' deterninae  ie "achievable." 42 U.i.C. |7479(3).
 EPA Region IX delegated ita  authority to isauo PSD permita  to
 HOOR in 1963,  subject  to the Region*a concurrence on BACT
 deterainations for the firat five permits.  48 red.  Reg. 31,682
 (November 10.  1983).
                          »
      H-Povor,  a reaource recovery facility  that vill bum aunici-
pe,l aolid waste aad generate electricity from this  process, ia the
 firat source to receive a permit  determination from BDOS under the
delegation. BOOB  made  a final deciaioa  to  issue  a  permit for H-Power
on  Vovcober 14, 1986, and E»A signed  the penit to  concur in the
BACT determination on Hoveaber 17,  1984.  Pursuant  to §124.19, a
 final permit decision becomes effective  30  daya aftar service of
4/ H-Pow«r will  be  located  In  an arsa  designated as being In
attainment of  the 803  SXAQS.   40 CFX  181.312.

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                                                                     8.18
 notiea of tilt daeiaion gnlaaa roviav it raojuaatad andar
                                        '•""               ""•"•   i/
 Petitioner* requested  review under }124.1t in a tiaely
 thua  tha permit daeiaioa it aet affective.               J;~
                 •                                         **
       Tht •vtnti leading to the HDOH permit dooiaioa need not

 be detailed hare i the hlflhlightt will mffle*.

       Znitially*  HDOR iiauad i drift p«radt containing «0j llaita

 of 191 parti par Billion (ppa) and 349 Iba/hr (3 -hour avaraga)

 but requiring nothing in taras of technological amiaaion eontrola

 for SO^.  Ragion XX axpraaaad its disapproval*  taking tha

 poaition that BACT for a municipal vaata burnar aueh  aa  H-Powar

 call a for uaa of a dry torubbar,  tinea it would anabla tha

 facility to aehiava SO} aoiaaion limita of 30 ppa (approiimataly

 80% raooval affieianey).   HDOH paraiatad*  hovavar, raitaratiag

 ita peaition that local anvironnantal,  aeonomie*  and  anargy

 iapaeta aupport a eoneluaiea  that  eorubbara ara not raquirad

 for H-Povar.   In tha and  tha  Ragion and HDOH  raaehad  a eooproodaa
S/ BEOS argoaa that tha patition  aheuld ba diaadaaad undar i 124.19
lor  failura to includa a "daavnatration* that tha iaauaa baing
raiaad in tha patition vara raiaad daring tha public eoanant
period.   Tha Ragion agraaa that tha patitioa deaa not ineluda a
atatanant to thia affaet, but point• out that tha axhibita
aubmittad vith HfiOB'a  raaponaa thov that tha iaauaa vara iadaad
raiaad during «ha public coanant  pariod.  So, tha Ragion auggaata
that tha ?atitionara'  failura to  ceoply vith thia "technical*
raquiramant ia harmlaaa arror.  X as inelinad to agraa with tha
Ragion.   Tha purpoaa of tha requireaant ia to inform tha Adaini-
atrator  whathar a patition for reviev M«ta tha praraajuiaitaa
for  conaidaration,  i.a.,  that tha permit iaauar had aa opportunity
to addreaa tha iaaua during tna public conaant pariod prior to
iaauing  tha parait.  40 C7R {124.13.  Sinca tha ezhibita tuppla-
nwnting  tha raapoaaaa  by tha parti aa indicate that Patitionara
did  raiie tha ieauea below, Z tea no harm eauaad by Petitioner a
onl a a i on •

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                                                                    3.18
 ia a final porait decision that aata 10* Uaita at 141 mm "JHJ ..
 349 Ibs/hr on a 3-hour average (only a 231 reduction according to
 the Region)    to bo Mt without scrubbers, by rowing high-sulfur
 bearing materials prior to combuatioa of tho waste,   la Addition*
 tho ponit provides for the Utor addition of a dry  lorbant
 injection lyttra if naeanary to M«t tho aaiaaioaa  livita in
 tho paraitt
      Bat«d on a revaluation of th« record and n«r information
                                  I/
 on municipal vaata inoin«r§tion,    th« Mgion now b«ll«v«a that
 BDOH's BACT d«t«rain«tion may not e« appropriate*  Th« Region
 points out that 17 of 21 municipal waata burnara in th« Region
 will have terubbera and of the reaaining four,  three will achieve
                                     •/
 SOj control of over 90% efficiency*     Conaidering the differen«e
 in control efficiency between B>Pcwer and  theee other reeource
 recovery projects,  the Region conclude* that KB08 haa net
 preeented a compelling eaae that  local faotora  aro sufficient
 to warrant allowing  a  !•§• effective  control technology for

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                                                                       8.18
                               — V
                                                        -i-.n csr-.-
          II                               -            ---------
 H-Powsr.     Furthermore, the Xogioa asserts that HDOf
 to analyse tho impact of tho proposed controls on unregulated
                                         10/
 pollutants as required by »orth County*       for these reasons,

 th€ Region reonieete th* Msinist rater te grant reritt? sn ths

 BACT determination.

      Administrative review of P8D permit decisions is not anally

 granted unl««a th« p«ralt d«ci«ton  10 ol«*rly •rroa«cut or iavolvoa

 an «x«reia« of di •oration or polloy that if  inportaat and thorofors

 should bo roviowod by tho Administrator  at a diaerotionary aattor.

 40 en. (124.19*   'Thi* pow«r of wriow should bo only sparingly

 •zoreisad .  . .  .' 45 Pod. Rog.  33,412 (May  19V 1980).  Tho

 regulations  onvisioa that disputad ponoit conditions will bo

 rtsolved for tho nost part at tho rsgional Isvol.  Id.  This is
    Sioply bocauso aost of tho municipal vasts barnors in tho
Ifogion will «mploy serubbors for 80? control doss not. as a oattor
of  law,  conpol a conolusiqn that B-Povor nust havo sexubbors.  Boo
•orthorn Plains Rssourco Council v. U.S. IPA« 645 F.2d 1349 (9th
Cir.  1981 )r  In ths Nattor of Vov York Pevor Authority. P80 Appoal~
?w. oS-t {S«w» 9,  i»o3;.  Sovovor* tho faox that sssantiaiiy ail
miniclpal wasto burnors will havo sorubbors- and boeauso thoso
•erubbors aro off active in controlling aadssions of potsntially
toxic organic and hsavy astal pollutants, and acid gasos othor
than  302,  domonstratsa that tho technology i* availabls.  Accord-
ingly substantial and unigjuo local factors sust bo shown to
justify  a looo offieiant control technology*

10/   BS08 dooo not elaia that its BACT dvtsraination included an
evaluation of the inpact of the SOj controls on unregulated pol-
lutants?  rather it argueo that in the proceee of oaking a final
permit decision,  it evaluated the potential impact of unregulated
pollutante emitted from R-power and revised the permit to -buffer
these impacts" by including a requirement for Mcher combustion
temperaturee  and longer retention time in the boilers.  HDOH
also  added a  term that requires compliance with any Additional
guidance  developed «• » raeult of the Worth County r«nand.
HDOH  claias  this fatitfiss ths requirements of Horth County.

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                                                                        8.18

                                •9-
 partioalarly trao  lev IACT datandaatioaa "bacaaaa thay iavolra
                                       • ••*:             ••-•.-:
 individualiiad ooaaidaratioa of tho fact* of aach aasa.  iaa
 la tho aattsr ef CartaiaTaad Corporation. NO Appeal 10. 81-2
 (Oaoanbar 21, 19M).  oivaa tho liaitad purpose of thit rarisv
 4nd tho fact that BftCT determinations should bo nade,  at loaat
                                                •
 la tho firit iastaaeo, tt tho regional or local Uvol,  X aa
 remanding th« eonourr«no« to th« Roglon for roeoMidaratioa.
                          •
 Sinea tha Ragion aow axprtataa doubt about itt eoacarraaea  on
 tha BACT,  Z eoaeluda that tha propar eourta of aetioa ia for
 tha Ragion to raoonaidar ita daciaioa and aithar find that  tha
 avidaaea fupporta it§ initial daciaioa to concur or* if  not* to
                                                  !!/
 aaka what  it conaidara tha  corract  datarmiaatioa*      Tho  lagion
 will hava  to dataraiaa vhathar tha  applicant haa nat ita bardan
 of damonatrating that significant taehaical  dafacta, or  aubataatial
 local  aconomiCf  «nargy«  or  •avironaaatal  factora or othar coats
 warrant  a  control  technology laaa affioiaat  than aorabbara.
     In  raconsidariag ita 'concurranca  tha  Ragion should consult
 with national or othar regional lovol  SPA  prograa officials, and
 say obtain aora  information  from BDOfl  or H-Powar, parfom
 additional analysis,  or othanriaa work with  HSOB« aa appropriata.
ll/  HDOH points to tha Region's official concurranea ia tha
BXcr determination and arguas that tha Region's currant petition
is inconsistent with tha dalsgatioa agraanant.  In making this
argunant. BOOB ignores tha nature of tha dalsgatioa tgraaswat
and th« fact that it is subject to the permitting procedures in
Part 124.  The delegation agreement is not a private bond
indenture or leaser it is an instrument for implementing a Law
enacted in the public intsrsst.  As statad a decade ago In aa
SPA permit proceedings
(Footnote continued)

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                                                                       a.ia
  After euch  reconsideration, the legion is to issue • fail""

  report to «*e Administrator and th« partial oa iti declaim  aad

  the supporting  reasons.  Whatever the legion decides must be

  adequately  supported by the existing administrative record
                               ia/
  end any supplements thereto.       If tne Region decides to with-

  draw ita concurrence, it must set out ita ova BACT determination

  and include a discussion of why the local facton  raited by HDOH

  are not  sufficient to Justify the initial BACT  determination.
 (footnote 11 continued)

      The  Agency is the repreaentative of the public iatereat
      and  ie  net "an umpire blandly calling belle and strikee
      for  adversaries appearing before it; the right of the
      public  met receive active and affirmative protection*
      at the  handf of the Agency.  [Scenic Budaon Preservation
      Conference v.  FPC, 354 F.2d 608, 620 (2d Cir. 1965)  cert.
      denied  384 0.8. 941 (1966).]   The courts have made  clear
      th»t the Agency must take affirmative ttepa to obtain the
      information neeeeaery to eoond deeieioae under the etatutee
      it adminiatere* even at the coat of delay
*  •  •  •
 Za re Public Service Company of Vev Hampshire, et.  al.  (fleabrook
 •tation. Unite 1 aad 2), 10 KM 1257, 1263 (19777.  Iho inetaat
 oaae repreeeate a •ituatioa where the Xegioa retained authority
 ia tha delegation agreement to review and concur ia UCT deter-
 •iaatione and now the legion expresses second thoughts  about
 Ita concurrence.  Aa Justice frankfurter stated*  "Wisdom too
 often never cornea, and so one ought not to reject it merely
 because it cornea late.* Henalee v. Union Planters Vat.  Bank 4
 Trust Co.* 335 U.S.  595, 600, 69 8. Ct. 290,  293, 93 L  3d 259
 (1948).   Certainly,  the Administrator, with his statutory
 responsibility to protect the environment, should Look  at the
 Region's concerns or,  if appropriate, direct the  legion to
 reconaider ita decision to concur.  The permit, after all, is
 not yet  effective.

 137 In ite response  to the petition,  HDOH argues  that 40 CT* {124.13
prohibits consideration of new information becauee  this  information
 is  not part of the admlnistrative record.  I  disagree.   Section
 124.13 directs partiee objecting to iny conditions  of the draft
permit to eubmit their comments during the public comment period.

 (footnote continued)

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                                                                       8.18
       Aftor reviewing the legion's decision on remand and any

  responses by tho parties, Z will issue a ruling en the petition

  for review.  In tho meantim, the ponding petition for review

  will bo hold in abeyance.

       During the tin* tho Region it reconsidering it* concurrence,

  tho Region and BOOB aay choose to negotiate roviiio&i to tho

  R-Pw«r BACT dctcxainatioa and iasu« 4 a«w pcndt daeiaion.  If

  •o,  any rcviaod p«rait  daeiiion,  unl«i« app«al«d« will bceoat

  final within 30 day» of ••nde« of aotieo to tho Petitioners,

  the permit applicant« and  any  other partiee previously antitled

 to notice under 40 CFR  $124,15.

      80 ordered.
 Datedi
                                       ffTrooemo
                                   Adainiatrator
 (footnote 12 continued)

 Zt doe* not apply to the permitting authority or. in thla eaao,
 to Region ZZ beeauee of the Region'• relationship to the permit-
 ting  authority under the delegation agreement.  Sor doee 1124.1J
prohibit the Administrator from considering new information.  Zn
view  of the Adainittrator't broad  authority to review permit
decieions,  including the right  to  remand under $124.15, the
Administrator has the power to  direct the Regional Administrator
or HOOH to  consider new information and to seek further evidence
 n relevant points.   See Zn the matter of 170 Alaska Placer
  ners,  More or Less,~R7DS8 Appeal Ho. 79-1 (Mar. 10. I960); Zn
.4 Public Service Canpaay of Sew Hampshire* et. al. (Seabrook
Station. Units 1  and :),  10 ESC 1357 (Decision oT^Ae Administrator.
1977).

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                                                             -. / , 8.18
                    BEFORE THE ADMINISTRATOR
              U.S. ENVIRONMENTAL PROTECTION AGENCY
                        WASHINGTON, D.C.

In the Matter of:      )

Honolulu Resource      )
  Recovery Facility,   )          PSD Appeal No. 86-8

  Applicant            )
                            REMAND

     Sierra Club, Conservation Council for Hawaii, American Lung

Association of Hawaii, Life of the Land, and Joseph Singer (Peti-

tioners) jointly request review of a Prevention of Significant         f

Deterioration (PSD) permit determination that will authorize the

City and County of Honolulu to construct the Honolulu Resource

Recovery Facility (H-Power), a municipal waste burner. ~"   A

final decision to issue a permit was made on November 17, 1986,

by the Hawaii Department of Health (HDOH), with EPA Region IX's

concurrence, pursuant to a delegation agreement between Region

ZX and HDOH.  HDOH's action in issuing the permit is subject
                                            I!
to the review provisions of 40 CFR §124.19,    because the
I/ Hiroji Abe also submitted a petition for review dated
December 20, 1986, which this office received on December 30,
1986.  The rules require that petitions for review of a permit
determination be filed within 30 days of issuance (plus mailing
time).  40 CFR $$124.19 and 124.20.  Zn this case a petition
had to be postmarked by December 20, 1986.  The record contains
no evidence of when .Mr. Abe mailed the petition, but the fact
that the petition was not received until December 30 leads to
a conclusion that, the petition is untimely.  Accordingly, the
petition is dismissed.  Additionally, Z note that Mr. Abe does
not raise any issues not encompassed by Petitioner's petition
for review.

2/ All references to the Code of Federal Regulations (CTR) are
To the 1986 edition.

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                                                                  8.18,
                               -2-
permit is deemed  to  be  an  EPA-issued  permit under EPA  rules.  40
CFR  §124.41; 45 Fed.  Reg.  33,413  (May 19,  1980).  Until review
is completed the  H-Power facility  is  without an effective permit
and  therefore is  not  authorised to begin construction.
     Petitioners  protest issuance  of  the permit because they be-
lieve it does not require, as  it is suppose to, use of the best
                                                             3/
available control technology (BACT) for sulfur dioxide (S02>
and  because they  believe the permitting authority did not evaluate
the  impact of the SO2 control  technology on unregulated pollutants,
as required by North County Resource  Recovery Associates,  PSD
Appeal No. 85-2 (June 3, 1986).  In response to the petition
for  review, Region ZX states that  it has reevaluated the record
and  considered new information on  municipal waste incineration,
and  now concludes that the BACT determination for H-Power may
not  be appropriate.  Zn view of the Region's response and after
considering the petition for review and the various responses,
Z agree with the  Region that HDOH's BACT determination for 502
may be inappropriate.  Also, the analysis required by North
County of the impact of controls on emissions of unregulated
pollutants appears to be inadequate.  Therefore, Z am remanding
the- concurrence to the Region  for  reconsideration.
^J Although Petitioners also declare that the BACT determination for
particulate matter and hydrochloric acid is unlawful, their petition
only addresses the- BACT determination for SO2 and fails to provide
any supporting arguments for these other claims.  For this reason,
the Region and HDOH direct their responses to the SO2 BACT determi-
nation and this remand concerns only the SO2 3ACT determination.

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                                                                 8.18
                              -3-
Diseusaion
     Before a major new facility can be constructed in an area
that is meeting the National Ambient Air Quality Standards (NAAQS),
the-owner must obtain a PSD permit to construct and operate the fa-
cility.  42 U.S.C. §§7470-79.  The Clean Air Act conditions permit
issuance on a showing that the proposed facility will employ BACT
for each regulated pollutant emitted from it in significant amounts.
42 U.S.C. §7475.  Section 169 of the Act defines BACT as an
•emission limitation reflecting the maximum degree of reduction"
that the "permitting authority," on a "case-by-case basis,
talcing into account energy, environmental, and economic impacts
and other costs" determines is "achievable." 42 U.S.C. §7479(3).
EPA Region IX delegated its. authority to issue PSD permits to
                      *
HEOH in 1983, subject to the- Region's concurrence on BACT
determinations for the first five permits. 48 Fed. Reg. 51,682
(November 10, 1983).
     H-Power, a resource recovery facility that will burn munici-
pal solid waste and generate electricity from this process, is the
first source to receive a permit determination from HDOH under the
delegation.  BOOB made a final decision to issue a permit for H-Power
on November 14, 1986, and EPA signed the permit to concur in the
BACT determination on November 17, 1986.  Pursuant to  §124.15, a
final permit decision becomes effective 30 days after  service of
4/ H-Power will be located in an area designated as being in
attainment of the SO2 NAAOS.  40 CPR §81.312.

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                                                                    8.18
 notice  of  the  decision unless  review  is  requested under  §124.19.
                                                                S/
 Petitioners  requested review under  §124.19 in a timely manner;

 thus  the permit decision  is not effective.

      The events leading to the HDOH permit decision need not

 be  detailed  here; the highlights will suffice.

      Initially, HDOH issued a draft permit containing 502 limits

 of  191  parts per million  (ppm) and 349 Ibs/hr (3-hour average)

 but requiring  nothing in  terms of technological emission controls

 for S02«   Region IX expressed its disapproval, talcing the

 position that  BACT for a  municipal waste burner such as H-Power

 calls for  use  of a dry scrubber* since it would enable the

 facility to  achieve SO2 emission limits of 30 ppm (approximately

 80% removal  efficiency).  HDOH persisted, however,  reiterating

 its position that local environmental, economic, and energy

 impacts support a conclusion that scrubbers are not required

 for H-Power.   In the end  the Region and HDOH reached a compromise
5/ HDOH argues that the petition should be dismissed under §124.19
lor failure to include a "demonstration" that the issues being
raised in the petition were raised during the public comment
period.  The Region, agrees that the petition does not includes a
statement to this effect, but points out that the exhibits
submitted with HDOH's response show that the issues were indeed
raised during .the public comment period.  So, the Region suggests
that the Petitioners' failure to comply with this "technical"
requirement is harmless error.  I am inclined to agree with the
Region.  The purpose of the requirement is to inform the Admini-
strator whether a petition for review meets the prerequisites
for consideration* i.e., that the permit issuer had an opportunity
to address the issue during the public comment period prior to
issuing the' permit. 40 CPU §124.13.  Since the exhibits supple-
menting the responses by the parties indicate that Petitioners
did raise the issues below, I see no harm caused by Petitioners'
omission.

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                                                                8.18
                              -5-
in a final permit decision that sets SO2 limits at L43 ppm and
349 Ibs/hr on a 3-hour average (only a 25% reduction according to
            6/
the Region)    to be met without scrubbers, by removing high-sulfur
bearing materials prior to combustion of the waste.  In addition,
the permit provides for the later addition of a dry sorbent
injection system if necessary to meet the emissions limits in
the permit.
     Based on a reevaluation of the record and new information
                                 !/
on municipal waste incineration,    the Region now believes that
HDOH's BACT determination may not be appropriate.  The Region
points out that 17 of 21 municipal waste burners in the Region
will have scrubbers and of the remaining four, three will achieve
                                    a/
SO2 control of over 90% efficiency.     Considering the difference
in control efficiency between H-Power and these other resource
recovery projects, the Region concludes that HDOH has not
presented a compelling case that local factors are sufficient
to warrant allowing a less effective control technology for
6/ HDOH asserts that 57% reduction of SO2 emissions will result
fVom the 143 ppm rate.
7/ According to ZPA Region IX, the new information includes pre-
sentations at three recent conferences 1) the American Pollution
Control Association Conference entitled "Burning Our Garbage:
Issues and Alternatives," October 30-31, 1986 in San Francisco;
2) An EPA workshop on municipal waste combustion, December 9-10,
1986 in North Carolina: and 3) the "First National Regulatory
Agency Resource Recovery Workshop" sponsored by the California
Air Pollution Control Officers Association and Northeast States
for Coordinated Air Use Management, January 15-17, 1987 in Los
Angeles.
8/ The last project is small and will have SO^ emissions of
45 ppm*

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                                                                 3.18
                               -6-

          !/
 H-Power.     Furthermore, the Region asserts that  HDOH failed

 to analyze the impact of the proposed controls  on  unregulated
                                         !£/
 pollutants as required by North County.       For these reasons,

 the Region requests the Administrator to grant  review  on  the

 BACT determination.

      Administrative review of PSD permit decisions is  not usually

 granted unless the permit decision is clearly erroneous or involves

 an exercise of discretion or policy that is  important  and therefore

 should be reviewed by the Administrator  as a discretionary matter.

 40 CFR 5124.19.   "This power of review should be only  sparingly

 exercised .  .  .  ."45 Fed.  Reg.  33,412 (May  19, 1980).  The

 regulations  envision  that disputed  permit conditions will be

 resolved for the most part  at the  regional level.  Id.  This is
9/  Simply because most of the municipal waste burners in the
Region will  employ scrubbers for S02 control does not, as a matter
of  law, compel a conclusion that H-Power must have scrubbers.  See
Northern Plains Resource Council v. U.S. EPA, 645 F.2d 1349 (9th—
Cir.  1981)?  In the Matter of New York Power Authority, PSD Appeal
No. 82-4 (Dee. 6, 1983).  However, the fact that essentially all
municipal waste burners will have scrubbers and because these
scrubbers are effective in controlling emissions of potentially
toxic organic and heavy metal pollutants, and acid gases other
than S02, demonstrates that the technology is wailable.  Accord-
ingly substantial and unique local factors must be shown to
justify a less efficient control technology.

!£/  HDOH does- not claim that its BACT determination included an
evaluation of the impact of the SO2 controls on unregulated pol-
lutants; rather it argues that in the process of making a final
permit decision,  it evaluated the potential impact of unregulated
pollutants emitted from H-power and revised the permit to "buffer.
these impacts* by including a requirement for higher combustion
temperatures and longer retention time in the boilers.  HDOH
also added a term that requires compliance with any additional
guidance developed as a result of the North County remand.
HDOH claims this satisfies the requirements of North Countv.

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                                                                  3.1*
                              -7-
particularly true for BACT determinations because they involve
individualised consideration of the facts of each case.  See
              •
In the matter of CertainTeed Corporation. PSD Appeal No. 81-2
(December 21, 1982).  Given the limited purpose of this review
and the fact that BACT determinations should be made, at Least
in the first instance, at the regional or local level, I am
remanding the concurrence to the Region for reconsideration.
Since the Region now expresses doubt about its concurrence on
the BACT, I conclude that the proper course of action is for
the Region to reconsider its decision and either find that the
evidence supports its initial decision to concur or,  if not, to
                                                  il/
make what it considers the correct determination.      The Region
will have to determine whether the applicant has met its burden
of demonstrating that significant technical defects,  or substantial
local economic, energy, or environmental factors or other costs
warrant a control technology less efficient than scrubbers.
     In reconsidering its concurrence the Region should consult
with national or other regional level EPA program officials, and
may obtain more information from HDOH or H-Power, perform
additional analysis, or otherwise work with HDOH. as appropriate.
ll/  HDOH points to the Region's official concurrence in the
BACT determination and argues that the Region's current position
is inconsistent with the delegation agreement.  In making this
argument, HDOH ignores the nature of the delegation agreement
and the fact that it is subject to the permitting procedures in
Part 124.  The- delegation agreement is not  a private bond
indenture or lease; it is an instrument for implementing a law
enacted in the public interest.  As stated  a decade ago in an
ZPA permit proceeding:
(Footnote continued}

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                                                                  e.18
                               -8-

 After  such  reconsideration,  the Region  is to  issue a  full

 report to the  Administrator  and the parties on its decision  and

 the  supporting reasons.  Whatever the Region  decides must be

 adequately  supported by  the  existing administrative record
                             ii/
 and  any supplements  thereto.      If the Region decides to with-

 draw its concurrence,  it mist  set out its own BACT determination

 and  include a  discussion of why the local factors raised by  HDOH

 are  not sufficient to justify  the initial BACT determination.
 (Footnote  11  continued)

     The Agency is  the representative of the public interest
     and is not "an umpire blandly calling balls and strikes
     for adversaries appearing before it; the right of the
     public must  receive active and affirmative protection"
     at the hands of the Agency.  [Scenic Hudson Preservation
     Conference v.  FPC, 354 F.2d 608, 620 (2d Cir. 1965) cert.
     denied 384 O.S. 941 (1966).]   The courts have made clear
     that  the Agency must take affirmative steps to obtain the
     information  necessary to sound decisions under the statutes
     it administers, even at the cost of delay ....

In re Public Service Company of New Hampshire, et. al. (Seabrook
Station, Units 1  and 2), 10 ERC 1257, 1263 (1977T. ~The instant
case represents a situation where the Region retained authority
in the delegation agreement to review and concur in BACT deter-
minations  and now the Region expresses second thoughts about
its concurrence.  As Justice Frankfurter stated, "Wisdom too
often never comes,  and so one ought not to reject it merely
because it comes  late." Henslee v. Union Planters Nat. Bank &
Trust Co., 335 U.S. 595, 600, 69 S. Ct. 290,  293, 93 L Ed 259
(1948).  Certainly, the Administrator, with his statutory
responsibility to protect the environment, should look at the
Region's concerns or, if appropriate, direct the Region to
reconsider its decision, to concur.  The permit, after all, is
not yet effective.

12/ In its response to the petition, HDOH argues that 40 CFR $124.13
prohibits  consideration of new information because this information
is not part of the  administrative record.  I disagree.  Section
124.13 directs parties objecting to any conditions of the draft
permit to  submit  their comments during the public*comment period.

(Footnote  continued)

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                                                                 8.18
                              -9-

     After reviewing the Region's decision on remand and any

responses by the parties, I will issue a ruling on the petition

for review.  In the meantime, the pending petition for review

will be held in abeyance.

     During the time the Region is reconsidering its concurrence,

the Region and HDOH may choose to negotiate revisions to the

H-Power BACT determination and issue a new permit decision.  If

so, any revised permit decision, unless appealed, will become

final within 30 days of service of notice to the Petitioners, •

the permit applicant, and any other parties previously entitled

to notice under 40 CFR §124.15.

     So ordered.
                                    0
                                      N. Thomas
                                  Administrator
Dated:  >i*	«• "l">^
 (Footnote  12  continued)

 It does  not. apply to  the permitting authority or, in this  case,
 to Region  XX  because  of the Region's  relationship to the permit-
 ting authority under  the delegation agreement.  Sor does §124.13
 prohibit the  Administrator from considering  new information.   In
 view of  the Administrator's broad  authority  to review permit
 decisions,  including  the right  to  remand under §124.19, the
 Administrator has the power to  direct the  Regional Administrator
 or HDOH  to consider new information and to seek further evidence
 on relevant points.  See In the matter of  170 Alaska Placer
 Miners,  Wore  or Lesa,~NPDES Appeal So. 79-1  (Kar. 10,  1980);  In
 re Public  Service Company  of  New Hampshire,  et^ al^  (Seabrook
 Station, Units 1 and  2), 10 ERC 12S7  (Decision of the  Administrator,
 1977).

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                                                                  9 «•»
                                                                  ^ • «.U
                   CERTIFICATE OF SERVICE
      I  hereby certify that the  copies  of the foregoing Remand
 in the  Matter of Honolulu  Resource Recovery  Facility,  PSD
 Appeal  No.  36-8,  were served  upon the  following persons by 1st
 class mail,  postage  prepaid:


                                   John C.  Lewin.  M.D.
                                   Department of Health
                                   State of Hawaii
                                   P.O.  Box 3378
                                   Honolulu,  Hawaii   96801

                                   Judith E.  Ayres
                                   Regional Administrator
                                   U.S.  EPA,  Region  IX
                                   215  Fremont Street
                                   San  Francisco,  CA 94105

                                   Joseph J.  Brecher, Esq.
                                   506  15th Street
                                   Oakland, CA   94612

                                   Jeremy Harris
                                   Managing Director
                                   City  and County of Honolulu
                                   Honolulu,  Hawaii   96813

                                   Joseph A.  Cannon,  Esq.
                                   Suite 1100
                                   1667  K Street,  H.W.
                                   Washington, D.C.   20006

                                   John  C.  Wise
                                   Deputy Regional Administrator
                                   U.S.  EPA,  Region  IX
                                   215 Fremont Street
                                   San Francisco,  CA 94105

                                   David P. Howekamp, Director
                                   Air Management  Division
                                   U.S.  EPA,  Region  IX
                                   215 Fremont Street
                                   San Francisco,  CA 94105

                                   Hiroji Abe
                                   P.O.  Box 4285
                                   Honolulu,  Hawaii   96812-4235
                                 _
                                 *"~"     Brenda H. Selden
Dated:  JUN  23 \98T                   Secretary to the Chief
                                       Judicial Officer

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                                                                                3.19
                 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                         Office of Air Quality  lannmg and Standards
                        Research Triangle Park North Carolina 27711
                             WUL ? 4
MEMORANDUM

SUBJECT:  Ca 1^1 at«g AMrtized Capital Co«ts

FROMiX' Ro&rt 0.  Bauman,  Chief
     "    Standards  Implementation Branch, CPOD (MD-15)

TO:       Stephen H. Rothblatt, Chief
          Air and Radiation Branch,  Region V  (5AR-26)


     This is in response to your  April 21, 1987, memorandum requesting
clarification regarding the appropriate  criteria to be used in calculating
the amortized capital costs of control options in the selection of best
mllrtle control technology (BACT). The 1980 "Prevent on of Significant
Deterioration Workshop Manual" states that U.S. Internal Revenue Service
(IRS) criteria should be used to  determine equipment life expectancy.
However  EPA  in developing new source performance standards  (NSPS), uses
economic assumptions based™ "useful economic life."  You wish to know
which set of criteria to use in the BACT economic analysis.

     The EPA still  relies on IRS  criteria, but there are now  several
different IRS equipment life estimation  systems and several EPA equipment
life information sources based on IRS data,  so  it  is more difficult  now to
know what information to use.  Our policy is  that  unlessthe  source  can
offer compelling data to the contrary,  the useful  life of  a  control  option
should be selected  from one of the following:

     0  For process-related controls, use:

         —  the NSPS/national emission standard for hazardous air pollutants
            (NESHAP) Background Information Document (if  a  source is subject
            to an NSPS or NESHAP),  or

         —  the  IRS Class Life Asset Depreciation Range (CLADR)  system
            guideline with  a mid-point estimate (if no NSPS/NESHAP applies).

      0   For "add-on" controls, use  the Economic Analysis Branch Control
         Cost Manual, which  is based on CLADR data. •

      Regarding the  appropriate annual interest ("discount") rate to use in
 theseanalyses,  the Office of Management and Budget (OMB) guide ines
 recommend 10 percent for regulatory impact analyses.  Because all NSPS are
 summed to OMB for review?  we  have typically used 10 oercent in our

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analyses.  However,  this value represents  a very  high  rate  of  return because
it is a "real" discount rate (i.e., it does not incorporate inflation).   The
OMB has assembled a  task force which is now studying this matter  and win
likely recommend a substantially lower value to be used in  future EPA  risk
assessment analyses; we plan to use the lower value when and if it is
adopted.

     The two attachments provide additional information on  the economic life
criteria discussed above.  I hope this memorandum clarifies the BACT
guidance in this area.  If you have any questions about it, Pjease feel
free to contact me at FTS 629-5629 or David Solomon at FTS  629-5375.
2 Attachments

cc:  NSR Contacts

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                                                                             8.19
                                                                Attacnmen-  1
              Background Information on Capital  Cost  Criteria

     When the 1980 "Prevention of Significant Deterioration  Workshop  Manual"
stated that the U.S. Internal Revenue Service (IRS) criteria should  be  used
to determine equipment life standards, it was referring  to the  IRS   Class
Life Asset Depreciation Range" (CLADR) system which provides a  range  of
depreciation periods for each class of assets.  Although the CLADR system
was repealed for tax purposes for property placed in  service after  1980,
these guidelines still provide estimates of low, medium, and high useful
lives for depreciable assets used in a wide range of  business,  industrial,
and other activities.  The CLADR should not be confused  with the current
IRS rules for the Accelerated Cost Recovery System (ACRS).   The ACRS is_not^
recommended for equipment life expectancy because it  uses  recovery  periods
which, for many types of equipment, are considerably  less than  actual useful
equipment life.

     In our opinion, the "useful economic life" criterion using CLADR data
is the most realistic one to use when estimating the  amortized  capital
("capital recovery") costs for control options, be they  "add-on" or  process-
related controls.  The only exception should be if documentation, proving
that the equipment life is shorter, is provided.  The CLADR  provides  a
range of estimates; we recommend using the raid-point  CLAOR life to obtain
the best estimate of "useful economic life."

     Under CLADR, "useful economic life" may vary not only with the  type  of
equipment but also with where and how that equipment  is  being used.   Consider
a gas turbine installed in an industrial facility for purposes  of generating
(or cogenerating) electricity for consumption on site.  If  the total  rated
capacity for electrical production/distribution at the site  were  greater
than 500 kilowatts (kH), the turbine would fall under "Asset Guideline  Class  (AGC)
UuTT:  "Industrial Steam and Electric Generation and/or Distribution Systems.
The "asset depreciation range" for this class provides a lower limit of
17.5 years, a mid-point of 22 years, and an upper limit of 26.5 years.
However, if this turbine is installed at, say, a plant producing  breakfast
food and the electrical product!on/distribution capacity at this  facility
is less than 500 kW, the lives to use would be 13.5  (low),  17 (mid-point),
and~Zu75~years  (high)  (AGC 20.1, "Manufacture of Grain  and Mill Products  ).
A complete listing of the CLADR values can be found in  IRS Publication 534.

     Ideally, all control options should be amortized using useful  lives
that are not only representative but standardized.  The IRS CLAW meets
both requirements in  this respect, as do the  background information documents
(BID) written to support the setting of new source performance standards
and national emission  standards for hazardous air pollutants.  A BID's cost
and economic analyses contain useful  life data  for the  source category
subject to the  standard.  These life  data have  been  based,  in turn, on
information obtained  from the industry  (e.g., via section 114 letters),
control equipment vendors,  and  other  reliable sources.

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                                                                               8.19
     It may prove difficult  in  some cases to determine useful  life of
add-on control  equipment in  the IRS listings.  Accordingly,  EPA has tabulated
low, midpoint,  and high economic lives for eight commonly  used add-on
control devices (see attachment).  These data were taken from Capital and
Operating Costs of Selected  Air Pollution Control  Systems  (EPA 450/5-80-002,
December 19/8).This report,  now retitled the Economic Analysis Branch
Control Cost Manual  (Third Edition), is being revised; for a copy, contact
Bill VatavuJc at (FT5) 629-5309.

Attachment

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                                            Attachment 2    8.19
 TABLE  3.6  GUIDELINES FOR PARTS AND EQUIPMENT LIFE'
MATERIALS AND PARTS LIFE
Filter bags
Adsorbents
Catalyst
Refractories
EQUIPMENT LIFE
Electrostatic Preci pita tors
Venturi Scrubbers
Fabric Filters
Thermal Incinerators
Catalytic Incinerators
Adsorbers
Absorbers
Refrigeration
Flares
LOW
(Years)
.3
2
2
1

5
5
5
5
5
5
5
5
5
AVERAGE
(Years)
1.5
5
5
5

20
10
20
10
10
10
10
10
15
HIGH
(Years',
5
8
8
10

40
20
40
20
20
20
20
20
20
Based on discussions with manufacturers and operators with corroborating
data from refs. 19. 20, 37. 38. 40. 78 and 82.
jurce: Caoical and Ooeracing Costs of Selected Air Pollutior. Control
Svscems (£?A ^50/5-80-002, December  1978).
                              3-16

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                                                                               3.20
 \\9 **«!>*
                UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                        Office of Air Quality Planning md Standards
                       Research Triangle Park, North Carolina 27711
                               JUL 281987
 Mr. Richard E. Grusrrick
 Chief
 Air Division
 Alabama Department of Environmental  Management
 1751 Federal  Drive
 Montgomery, Alabama 36130

 Dear Mr.  Gnisnlck:

      This is  in response to your June  19,  1987, letter concerning best
 available control  technology  (BACT)  determinations.  The issues you raise
 highlight perhaps  the most  crucial aspects of BACT determinations, and I
 hope that the  following responds  adequately to them.

      The  first issue you raised  concerns the role of new source performance
 standards (NSPS) 1n BACT determinations.  The NSPS are established after
 long and  careful consideration of a  standard that can be reasonably
 achieved  by every new source  anywhere in the nation.  This means that
 even a  very recent  NSPS does  not  represent the hest technology available;
 it  instead  represents  the best technology available nationwide, regard-
 less of climate, water availability, and many other highly variable
 case-specific  factors.   The NSP.S  is the least common denominator and nust
 be  met; there  are no  variances.   The BACT requirement, on the other hand,
 is  the  greatest degree  of emissions control that can be achieved at a
 specific  source and accounts  for  site-specific variables on a case-by-case
 basis.

      Since  an  applicable NSPS must always be met, it provides a legal
 "floor" for the BACT, which cannot be less stringent.  A BACT determination
 should  nearly  always  be  more  stringent than the NSPS because the NSPS
 establishes what every source can achieve, not the best that a source
 could do.   In  only  a  few BACT cases should you encounter the same criteria
that limited the stringency of the NSPS, so BACT should usually be more
 stringent than-the NSPS.

     States, as you pointed out, don't always have the technical  expertise
that is available to EPA.  For that reason, the BACT determination process
best for many  agencies is that which is currently used by many State/local
permit agencies.  This process consists of requiring the source to either
use the most stringent control technology or to show in detail why it
cannot.  The BACT/LAER* Clearinghouse is often used to find the most
stringent control  tecnnology,  as are calls to experienced permit  review
  lowest achievaoie emission rate

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                                                                              8.20
 engineers in other States, discussions with control  equipment manufacturers,
 and reviews of literature such as the Mcllvaine newsletter.   This  approach
 was alluded to by the EPA Administrator in the recent H-Power remand
 (copy enclosed) where it states that 'substantial  and unique factors oust
 be shown to justify a less efficient control  technology."  For additional
 detail on this approach, contact Wayne Bladcard,  Chief,  New  Source Section,
 EPA, Region IX, 215 Fremont Street,  San Francisco, California 94105,
 (415) 974-3249.

      The second issue involves the relationship between  BACT and air
 quality impacts.   The application of BACT  is  a specific  requirement  for a
 prevention of significant deterioration (PSD)  permit  that  stands alone in
 the sense that, as a minimum,  a PSD  source must install  BACT regardless
 of the air quality impact.  In other words, BACT  is BACT,  even  if  the
 source would only consume 5 percent  of the available  increment.  I certainly
 did not mean to imply that EPA "decides" how much  increment  a source can
 have; EPA does, however,  have  oversight  responsibilities in  BACT decisions.
 In your example,  EPA would not deny  a permit to a  source consuming 95
 percent of the  increment provided all  else was  acceptable, including the
 BACT determination.   However,  modeled violations of a  national  ambient
 air quality  standard or  PSD Increment may  drive a BACT determination to a
 greater level  of  control.   What we would deny  is a permit  for a source
 where a BACT determination was "relaxed" (or even no control  at all  was
 required)  simply  because the source  did  not consume all  of the  increment.

      Other aspects of the  env'fronmental  impact  of the BACT decision  occur
 when a control  option increases the  emissions  of one pollutant while
 reducing  emissions of another,  or a  control option may produce an environ-
 mentally  harmful  byproduct.  For example,  the  use of water injection  in •
 controlling  nitrogen  oxides  from gas  turbines will increase  carbon monoxide
 emissions.

      In  summary,  section  169 of the  Clean  Air Act defines  BACT as  "based
 on  the maximum  degree of  reduction ... on a case-by-case basis."   Conse-
quently,  BACT represents  the best level of control the source can provide
 and  should not  be based on a category-wide minimal standard  like an
 applicable NSPS.
                                           Sincerely,
                                               Cni'ef
                                     New Source Review Section
1 Enclosure

cc:  Bruce Miller

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,  ^^ ',         UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
*  ^HB? 3              Office of Air Quality Planning and Standards
  *M|£^./             Research Triangle Park, North Carolina 27711
                                                                ,,-„
  MEMORANDUM

  SUBJECT:  Implementation of North CounjU^tesm»«e Recovery PSD Remand
  FROM:     Gerald A.  Emison,  Directj_	 .
            Office of Air Quality'ngTTnTn^and Standards (MD-10)

  TO:       Director,  Air Management  Division, Regions I, III, V, and IX
            Director,  Air and  Waste Management Division, Region II
            Director,  Air, Pesticides, and Toxics Division, Regions IV and VI
            Director,  Air and  Toxics  Division, Regions VII, VIII, and X

       On June 3, 1986,  the Administrator remanded a prevention of significant
  deterioration (PSD)  permit decision, involving the North County Resource
  Recovery project, to Region  IX for  their reconsideration.  The permit was
  for a 33-megawatt, 1000 tons-per-day facility to be located in San Marcos,
  California.  At issue  was whether appropriate consideration had been given,
  within the best available control technology (BACT) determination, to the
  environmental  effects  of pollutants not subject to regulation under the
  Clean Air Act (Act).*   The remand strongly  affirms that the permitting
  authority should take  the toxic effects of  unregulated pollutants into
  account in making BACT decisions for regulated pollutants.  This obligation
  arises from section 169(3) of  the Act, which defines BACT as the maximum
  degree of emissions decrease which  the permitting authority determines is
  achievable, taking into account "environmental . . . impacts."  Essential
  to this process is the notification to the  public of how the effects of
  toxic air pollutants,  including those that  are unregulated, have been
  considered in the PSD  review and the subsequent consideration of the comments
  in making the final  BACT decision.  The purpose of this memorandum is to
  advise you of the impact of  the remand on PSD permitting and to provide
  implementation guidance.  This document builds upon and makes final the
  draft guidance of August 1986.

  Coverage

       Although the Act  has given us  the authority to review directly the
  considerable range of  regulated pollutants, the remand clearly indicates
  that the Environmental Protection Agency  (EPA) should  incorporate  considera-
  tion of all pollutants within.its PSD determinations for all sources subject
  to PSD.  This result is consistent  with the fact that  the PSD permitting
  process is charged '.  . .to protect public health and welfare from any
  *A "regulated pollutant," or "pollutant subject to regulation under the
  Clean Air Act," is one which is addressed by a  national  ambient  air
  quality standard, a new source performance standard,  or is  listed pursuant
  to the national emission standards for hazardous air  pollutants  program.

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                                                                               8.21
 actual or potential adverse effect .  .  .  from air pollution  .  .  .  ."  and  that
 increases in air pollution  should be  permitted ".  .  .  only after careful
 evaluation of all the consequences .  .  .  ."  [section 160(1)  and  (2)].

      Revisions to State implementation  plans (SIP's),  to  comport with the
 Administrator's decision,  should not  be necessary.  State or local  agencies
 with delegated PSD programs  automatically  trade  this change  in policy.
 Agencies implementing their own  SIP-approved programs  are also unlikely to
 need any regulatory changes.  This is because the  remand  is  based on an
 interpretation of Act language,  notably the  definition of BACT, that  is in
 most cases already contained in  the plan.  I ask that  you confirm this with
 your States and applicable  local agencies.

 Transition

      As  with any change in  the way EPA  does  business,  we  have developed a
 transition plan for Its  implementation.  The situations can be addressed
 most logically by dividing  all PSO sources into three  groups based on phase
 of  permitting activity:  those sources  for which permit applications had
 not been filed, those for which  permits had  already  been  granted, and those
 for which applications  had been  filed but permits  not yet granted.

      First,  all PSD sources  for  which complete applications had not been
 filed as  of  the Administrator's  June 3, 1986,  decision are fully subject to
 the remand's requirements.   Earlier applications present more complex
 policy considerations.

      One could argue,  since  the  Administrator's decision  is an interpretation
 of  existing  Act provisions,  rather than a new  requirement, that all PSD
 permits  issued under the terns of the 1977 Amendments  to the Act should be
 subject to the remand.  -However,  program stability and equity to sources, in
 this second  group,  that have relied upon properly  Issued PSD permits militate
 strongly  against  such an approach.  For these  reasons, I have decided to
 exempt from  the requirements of  the remand all sources holding finally
 issued permits  as of June 3,  1986.  (Subsequent major modifications to such
 existing  sources  are, of course,  subject to  PSD review, including the
 application  of the  requirements of this remand.)

     The third group of sources  consists of  those  for which PSD permits
were  in the  pipeline  (I.e.,  complete application filed but permits not yet
 issued) as of  the date of the remand.    It Is appropriate that these sources
also be subject to the terms of the remand.  However, for permit applications
which  have successfully passed through the public  comment period without
environmental effects concerns being raised,  the Regional Office may, at its
discretion,  Issue these in final without further delay.

     The above enunciated transition policy applies directly to all EPA
permit issuance procedures and also to those used  by State agencies issuing
PSD permits under a delegation of authority agreement pursuant  to 40 CFR
52.21(u).  This transition policy does not automatically apply  to PSD

-------
 ermit decisions by States under SIP-approved PSD programs, except to the
jxtent that environmental effects issues are raised by commenters.  The
policy does apply prospectively in a uniform fashion to all applications
filed after June 3, 1986.  States with SIP-approved PSO programs are, of
course, responsible for enunciating reasonable transition schemes and I ask
that you encourage them to adopt policies consistent with this one.  These
transition schemes, as with the substantive program itself, are unlikely to
require rulemaking; however, the policies should be set forth in formal
statements so as to further the goals of public awareness and consistent
application.  These policies and their implementation will be reviewed
within the National Air Audit System to assess the need to require greater
conforraance.

Required Analyses

     The BACT requirement outlined in section 169(3) of the Act contemplates
a decision process In which the best available controls are defined for
each regulated pollutant that a PSD source would emit in significant amounts.
This case-by-case process is to take into account energy, environmental, and
economic impacts and other costs.  The toxic effects of unregulated pollutants
are to be accounted for in deciding if the BACT otherwise being prescribed
for regulated pollutants still represents the appropriate level and type of
control.  If the reviewing authority judges the potential environmental
effects of such unregulated pollutants to be of possible concern to the
public, then the final BACT decision for regulated pollutants should in all
:ases address these effects and reflect, as appropriate, control beyond what
might otherwise have been chosen.

     A recent remand determination made by the Administrator in another case
provides further elucidation of the BACT process.  In that case, Honolulu
Program of Waste Energy Recovery (H-Power), PSD Appeal No. 86-6, Remand
Order (June 23, 1987), the Administrator ruled that a PSD permitting
authority has the burden of demonstrating that adverse economic Impacts are
so significant as to justify the failure to require the most effective
pollution controls technologically achievable as BACT.

     The broad mandate with respect to toxics that is presented by the
remand is not readily amenable to highly detailed national guidance that
provides the appropriate permitting requirement in each case.  There is no
specific formula for making BACT decisions; this is a case-by-case process
Involving the judgment of the reviewing authority.  While it may be possible
to develop a framework of guidance based upon such factors as risk assessment
and reference doses, this would entail a large effort that seems inappropriate
at this time.  It 1s more practical, however, for EPA to develop guidance
for specific source categories that are of particular importance.  The EPA
has recently provided such BACT guidance with respect to municipal waste
combustors.  See memorandum entitled 'Operational Guidance on Control
Technology for New and Modified Municipal Waste Combustors,"  from Gerald A.
Emison, Director, Office of Air Quality Planning and Standards, dated
June 26, 1987.  Guidance on other source categories may be issued from time
:o time as appropriate.

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                                                                                8.21
     Today's policy charges the PSD review authority with  analyzing  at  the
outset the environmental  impacts of proposed  construction  projects with
respect to air toxics which might be of concern,  even if such matters are
not initially raised by the public.  Other types  of  environmental effects
should also be addressed in response to public concerns, within the  limits
of the ability to do so.  For PSD reviews  consistent with  this policy,  each
applicable permitting authority should initiate an evaluation of toxic  air
pollutants (unregulated as well  as regulated) which  the  proposed project
would emit in amounts potentially of concern  to the public.  The review
authority should evaluate unregulated pollutants  for both  carcinogenic  and
noncarcinogenic effects.  The National Air Toxics Information Clearinghouse
(NATICH) data base contains considerable information relevant to evaluating
the effect, sources, and control techniques available for  unregulated
pollutants.  I encourage you to urge permitting authorities to use NATICH
as a source of information as they conduct the analyses.  Further information
may be obtained by calling the NATICH staff at 629-5519.

     The response to the Administrator made by EPA Region  IX in its  analysis
of the North County permitting decision is attached.  Although this  example
illustrates only one of several acceptable approaches, it  is a well  thought
out analysis that provides a useful example to consider  for future permitting
exercises.

     Headquarters has several other mechanisms in effect to support  analyses
with respect to toxics.  These include a recent report which helps to
estimate toxic air emissions from various sources (Compiling Air Toxics
Emission Inventories, EPA-450/4-86-010).  The burden of proof regarding
emissions estimates, of course, rests with the applicant,  but the techniques
discussed in the document should be useful In determining  if the applicant s
estimates are reasonable and address appropriate pollutants.  In addition,
the Office of Research and Development (ORD)  has released  a control  technology
manual which Is valuable in evaluating how control devices for particulate
matter and volatile organic compounds differ In their abilities to  control
various toxic species of these criteria pollutants (Control Technologies
for Hazardous Air Pollutants, EPA-625/6-86/014).

     Support will also be available on a case-by-case basis from the Office
of Air Quality Planning and Standards (OAQPS) and ORD.  In particular,  we
have formed a control technology center to provide assistance to the review
authority in determining BACT.  This center can offer a range  of  activities,
including evaluation of source emissions, identification of control  techniques,
development of control cost estimates, identification of operation  and
maintenance procedures, and, in a few situations, in-depth engineering
assistance on individual problems.  Other planned activities  include the
publication of technical guidance to assist 1n the evaluation of  selected
types of sources.  Contact points for the control technology  center are
Lee Beck In OAQPS (629-0800) and Sharon Nolen in ORD  (629-7607).   We expect
this support to limit the effort required of PSD reviewing authorities.

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                                                                               8.21
 Public Participation

      One of the most important features of this policy is the requirement
 that the affected public be fully informed of the potential  toxic emissions
 from a proposed project and of what the reviewing authority has done to
 minimize this potential within the BACT decision.  A specific discussion  of
 toxics concerns 1n a technical support document might be helpful  in accom-
 plishing this Information transfer.  Additional concerns related  to the
 environmental effects of unregulated pollutants raised by commenters must
 then be addressed in the final BACT determination.   This process  is of
 central importance to PSD permitting and comments received must be adequately
 addressed in the final  decision.   Strong public participation is  consistent
 with the PSD goals contained in section 160 of the  Act,  which relate to
 informing the public of increased air pollution, including that due to
 unregulated pollutants.

      It should be noted that although these analyses are used in  the BACT
 decision, they will  not be used as the basis  for disapproving a project
 that has agreed to apply BACT. In other words, today's  policy requires that
 toxics  be considered in the control  of the proposed project  only  to  the
 extent  that the level  of control  chosen as BACT is  achievable.

 Enforcement

      In the case of  delegated  (as opposed to  SIP-approved) PSD programs,
 EPA has various  enforcement tools.   Pursuant  to 40  CFR 124.19,  any party
 that participated in the public proceedings with respect  to  a proposed
 permit  may,  within 30 days  of  the final  permit  decision,  petition the
 Administrator of EPA to review any condition  of that permit  decision.  The
 Administrator may  also  seek to review  any  such  permit condition on his own
 initiative.   Should  this appeals  procedure be unavailable in  a  particular
 case, EPA has  the  authority, depending upon the facts of  the  case, to
 withdraw  the delegation with respect to an Individual permit  that  is  being
 or  has  been  issued inconsistently with the terms of  that  delegation.  Thus,
 EPA may be  able  to directly intervene  in the  issuance of  a PSD  permit to
 ensure  implementation of today's  policy.   This  withdrawal of  delegation is
 not the preferred  course of action  but it  may be available if needed.

     The  consideration  of air  toxics in  PSD permitting is a requirement of
 the Act and, through the definition  of BACT,  is incorporated  in the  SIP's.
Therefore, violation of  this policy  would  constitute a SIP violation and be
 enforceable  by EPA.  Section 113(a)  of the Act  provides for Federal  issuance
of  a notice of violation in  the case of  a  violation  of a  SIP.   If the
 violation continues  for more than 30 days, section  113(b) provides that the
Administrator shall commence an action for Injunction or  civil  penalty, or
both.   In addition, section  167 of the Act specifically provides that EPA
take legal action to prevent the  construction of a major  emitting facility
that does not conform to the requirements  of  PSD.   Under  section  167, EPA
can Issue an administrative  order or commence a  civil action.   Since no

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                                                                             0.4.1
notice of violation would be necessary, in this case, EPA can use section
167 to order  immediate cessation of construction or operation.  Note also
that this section has been construed as providing EPA with authority to take
enforcement action against sources out of compliance with PSD even if they
have already been constructed.  These remedies are more likely to be used
in the case of SIP-approved programs than with delegated programs, for
which an appeal under 40 CFR Part 124 would generally be the preferred
course of action.

     Enforcement actions are pursued after reviewing a range of factors
relevant to each particular case.  For this reason, I am not setting forth
detailed provisions as to required enforcement measures.  There are, however,
certain situations in which enforcement action is generally appropriate.
These include procedural deficiencies, such as failure to solicit public
comment on air toxics issues for applicable permits, and failure to address
the air toxics concerns raised by public comment.  Enforcement with respect
to permits already in the pipeline should follow the transition scheme in
today's policy for delegated programs and the State or local agreement
established with EPA for.SIP-approved programs.

     The Act and the PSD regulations require that States submit a copy of
the public notice for proposed permits to EPA.  I urge the Regional Offices
to ensure that such notices are submitted and are reviewed for conformance
with the criteria contained in this document.  Although enforcement mecha-
nisms are available to address noncomplying sources, our efforts to implement
today's policy will be much more effective if taken prospectively and in
coordination with the State permitting process.

Conclusion

     Today's guidance summarizes the broad ranging impact of the June 3,
1986, remand and provides some insight into the analyses and public
disclosure that now should take place.  We will continue to support and
monitor subsequent decisions and to assess the need for more detailed or
expansive guidance.  Questions on today's guidance should be addressed to
Michael  Trutna (629-5345) or Kirt Cox of OAQPS (629-5399).

Attachment

cc:   C.  Potter
     A.  Eckert
     D.  Clay
     Regional  Administrator, Regions I-X
     Air Branch Chiefs, Regions I-X

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                                                                    8.21
                     UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                      REGION IX
                                   215 Fremont Street
                                San Francisco. Ca. 94105
 MEMORANDUM
 DATE:  August  15,  1986

 SUBJECT:  North  County Resource Recovery  Associates
           PSD  Appearl/
 FROM:
 TO:
                     rrector
Afr Management Division, Region 9

Lee M. Thomas, Administrator
U.S. Environmental Protection Agency
      This is in response to the June 3,  1986 remand of
 Region 9's April 2, 1985 determination to issue a .Prevention
 of Significant Deterioration (PSD) permit to the North
.County Resource Recovery Associates for  the construction
 of a 1000 ton per day resource recovery  facility.  The
 remand charged Region 9 with reconsidering the effects
 of unregulated pollutants when making PSD determinations.

      Region 9 has reviewed the' relevant  BACT decisions
 and has prepared a response to the Administrator's remand,
 as recommended in the July 21, 1986 guidance, memo from
 Gerald A. Emison, Director, Office of Air Quality Planning
 and Standards.   Our response with supporting materials
 is attached.

      If you have any questions regarding the enclosed
 materials please contact me at 454-3201  (FTS) or have your
 staff contact Wayne A. Blackard,  Chief of our New Source
 Section at 454-8249 (FTS).
 Enclosures

-------
                                                                   8.21
                     RESPONSE  TO  PSD  REMAND
       NORTH  COUNTY  RECYCLING  AND ENERGY  RECOVERY  CENTER
                     (PSD  Appeal  No.  85-2)


     On April 2,  1985  the Director of  the Air Management
Division, EPA Region 9, made  a determination to issue a Prevention
of Significant Deterioration  (PSD) permit to the  North County
Resource Recovery Associates  (NCRRA) for the construction and
operation of a 33 megawatt, 1000 ton per day resource recovery
facility.  During the  following  appeal period EPA received
three  petitions  filed  pursuant to 40 CPR 124.19 requesting the
Administrator to  review Region 9's decision to issue the PSD
permit.  The Office of the Administrator reviewed the petitioners'
comments and Region 9's responses to the comments and determined
that Region  9 had satisfactorily addressed all of the petitioners
allegations  with  the exception of Region 9's assertion that EPA
lacked the authority to "consider" pollutants not regulated by
the Clean Air Act when making a  PSD determination.  The Adminis-
trator felt  that  Region 9's assertion  was overly  broad and that
when making  a PSD determination,  in particular a  best available
control technology  (BACT) decision, a  permitting  agency must
consider not only the environmental  impact of the controlled
regulated pollutant but must also consider the environmental
impacts of any unregulated pollutants  that might  be affected by
the choice of control  technology.  For this reason the Adminis-
trator remanded the PSD determination  to Region 9 for recon-
sideration and action consistent with  the above interpreta-
tion of EPA authority.

     In response  to the above, Region  9  has reviewed the BACT
decisions made for  the NCRRA  PSD permit.  Under the PSD regula-
tions NCSRA must apply 9ACT to control emissions  of S02» NO*,
lead, mercury, and  fluorides  from their  proposed  resource
recovery facility.  BACT  is defined  in the Clean  Air Act as
"...an emission limitation based on  the  maximum degree of
reduction of each pollutant subject  to regulation under this
Act...on a case-oy-case basis, taking  into account energy,
environmental and economic impacts and other costs..."  Under
environmental impacts our review of  the  original  BACT determination
included the impacts from both regulated and affected unregulated
pollutants.  The control of particulates, CO, and VOC emissions
are not directly subject  to the  federal  PSD BACT  review, but
are subject to the nonattainment permitting regulations which
are administered by the San Diego Air  Pollution Control District.

     NCRRA is proposing to use a dry scrubber with a baghouse
to control emissions of S02, acid gases, and particulate matter
from the proposed resource recovery  project.  The dry scrubber
•onsists of a spray dryer and a  baghouse.  The spray dryer  injects
an atomized lime slurry sorbent  into the flue gas stream.  The
baghouse removes  the dried sorbent and flyash (particulate matter)
f-om the flue gas.  The cry scrubber will be designed  for a
flue gas flow of  225,000  acfm at an  inlet temperature of

-------
                               -2-
  340 degrees P and a maximum outlet  temperature of 265  degrees  P.
  NCRRA expects the dry scrubber system  to  provide 83% removal of
  SO2 and 95% removal of acid gases as well  as  99.5% removal  of
  particulates.

       Recent tests of emissions control devices for waste fired
  boilers (the latest being  the  Quebec City  Test Program) have
  shown  that  properly designed and operated  control  devices can
  significantly reduce emissions from resource  recovery  facilities.
  In  particular,  an acid gas  scrubbing system operating at optimal
  stoichiometric  ratios,  at  low  temperature, in  tandem with a
  baghouse can achieve very  high removal efficiencies of particu-
  lates,  S02,  RC1,  organics,  and heavy metals.   The  tests indicate
  that  the NCRRA's  proposed emission control system  (lime slurry
  spray dryer,  baghouse,  low  temperature flue gas) is the most
  efficient for controlling  the  unregulated pollutants from a
  resource recovery facility.  While certain technologies may have
  the potential for greater removal of regulated pollutants (e.g.
 a wet scrubber  may yield greater SO2 removal), available data
 suggests that greater control of unregulated pollutants will
 not result.   Region  9 believes  that  the NCRRA's proposed control
 technology will have very high collection efficiencies  of
 dioxins, furans,  and heavy metals,  with collection efficiencies
 of 95% for HC1, and greater than 90% for mercury.  He conclude
 that a lime slurry spray dryer with  a  baghouse provides the
 greatest degree of control  currently achievable for the relevant
 air toxics concerns and therefore, emission limitations based
 on the operation of a lime  slurry spray dryer with a baghouse
 and continuous emission monitors constitute BACT for the control
 of SO2, lead, mercury, and  fluorides from the NCRRA facility.

      In addition to the proposed acid  gas  BACT, Region  9 also
 reviewed the BACT decisions made for controlling NOX emissions
 from the NCRRA facility. NCRRA has  proposed  to control NO,
 emissions  with low excess air and staged  combustion. After
 reviewing  all of the available  control  technologies, Region 9
 believes that the alternate NO, control  technologies currently  .
 available  for resource recovery do not  offer  any better control
 of  the  affected  pollutants  (organics such  as  dioxins and furans)
 than do  the  controls proposed  for the NCRRA facility.   Our
 review  included  staged combustion, selective  non-catalytic
 reduction, selective catalytic  reduction,  wet  flue  gas  de-
 nitrification, and the different categories of source separation;
 Our  review also  took into account the effects  of the district
 permit  requirements designed to reduce organic toxic pollutants
 (minimum 1800* P furnace temperature and minimum 2  second
 residence time in  the combustion zone).  We conclude that an
 emission limitation based on the use of low excess  air  and
 staged combustion  and with  continuous emission  monitors  is  BACT
 (considering  the effect  of  unregulated pollutants)  at this  time
 for the control  of NO,  emissions from the NCRRA facility.

     As part  of  our BACT review of the NCRRA PSD  permit,  Region 9
 prepared several charts  listing the available  SO2 and NO, control
options  for  the  NCRRA facility,  ranked  in order of  control

-------
                                                                    8.21
                              -3-
^ffectivenesa,  witth  the estimated  impacts of  the controls on
 .he  projects' other air pollutants.  The charts were prepared
using data  from existing Region 9 PSD permits, permit applications,
district  permits, emission control  technology  reports from the
California  Air  Resources Board and  the New york City Department
of Sanitation,  and from reports on  the Quebec  City Test Program.
The  impacts on  other  pollutants were estimated using our best
engineering judgement based on the  available data.  He have
included  these  charts with this report for your review.

     After  reviewing  the above facts, Region 9 has concluded
that no greater controls for the regulated pollutants can be
applied that would be more effective in reducing the emissions
of unregulated  pollutants.  Therefore, the BACT proposed by NCRRA
and-the BACT decisions made by Region 9 in the April 2, 1985
PSD determination are reaffirmed as BACT for controlling S02i
SOX,  lead,  mercury, and fluoride emissions from NCRRA's
proposed North  County Recycling and Energy Recovery Center.

-------
                                                                   8.21


                               •4-
                          REFERENCES
                                           'erv
     California Air Resources Boaro", May 24"7~T984T
1.  Air Pollution Control at Resource Recovery Facilities,
                                                  i


                                                  W
2.  Clarke, Marjorie J., Emission Control Technologies for
     Resource Recovery, New York City Department of Sanitation,
     March 15, 1986.
3.  Ray, D.J., Finkelsteim, A., Klicuis, R., Masentette, L.,
     "The National Incinerator Testing and Evaluation Program:
     An Assessment of A) Two-Stage Incineration B) Pilot
     Scale Emission Control", Presented at the 79th Annual
     Meeting of the Air Pollution Control Association,
     June 22-27,  1986,  Minneapolis, Minnesota.

-------
                            tVA Keg ion 9 - New Source Be*-
                                      BACT ANALYSIS
                  (Ranked in Decreasing Order of Control Errectivenesa)
   —
Project Typei  1113 TPP, V
Pol lutant t	9CH
Dates   Auq 15, 1986
                                                                                                              ~
                                                                              Project Engineeri   Bob Baker
Control Options
Spray Dryer, Alkaline
Slurry, Baghouse
Spray Dryer, Lime Slurry,
BagtKHiee
Spray Dryer, Alkaline
Slurry, ESP
Dry Injection, Sodium
Sort >ent, Baghouae
Spray Dryer, Lime Slurry,
ESP
Dry Injection, Lime,
Bdtjttouae
Wet Scrubbing, Alkaline
Dry Injection, Sodium
Sot bent, ESP
Dry Injection, Lime, ESP
% Control
80-95
75-90
75-90
70-85
65-85
65-80
50-90*
50-75
40-70
Ekni salon
Rates
Ibs/ton
(ppn) 
-------
                                        a  - New source Secf'->o
                                       BACT ANALYSIS
                   (Ranked  in Decreasing Order  of Control Effectiveness)
                                          Page  2
Project Typet 1113 TPD, RDF/
Pol lutant t    9Ch
Datei    Auq 15, l9fl£  	;
Project Engineer i  Bob Baker
MM
Control Options
Dry Injection, Limestone,
ESP
Met Scrubbing, Water
Source Separation

% Control
25-40
20-30
5-10

Emission
Rates
Ibs/ton
(DP*) «
3.13-3.91
(106-132)
3.65-4.17
(124-141)
4.69-4.95
(159-168)
Emissions
(tons/yr)
636-795
742-848
954-1007

Control Effectiveness on
Other Pol lutant a
Heavy
Metals
Fair
Poor
Poor

Dioxin
Purans
Poor
Poor
Fair

na
Good
Fair
Fair

Hg
Poor
Poor
Poor

Lead
Fair
Fair
Poor

(1  Oorrected to 12% O32, 24 hour average.

-------
                                                                                                   *-+~f\~t\.m  «\JIA
                             fcl>A Region 9  - New Source Se.
                                       BACr ANALYSIS
                   
-------
                                 Region 9 - New Source
                                       BACF ANALYSIS
                   (Hanked in Decreasing Order ot Control Effectiveness)
f ro ject ;  North (jaunty HHi;
Project Category; Reaourc    covert
Project Type;  1113 TTO. lujr .~l6~fM
                               ---
NOl
Pollutant;
Date: _ Aug 15. 1986
Project engineer;  Bob Baker
Control Options
Selective Catalytic
Reduction (SCR) <2
Wet Flue Gas Denitrifica-
tion (PGDn) <2
Selective Non-Catalytic
Reduction (SNOR)
lx>w Excess Air/Staged
Combustion
Flue Gas Recirculation

Source Separation
% Control
90-95
80-90
30-60
30-35
10-15

Minimal
Emission
Rates
Ibs/ton
(ppm) (1
0.31-0.61
(15-30)
0.61-1.21
(30-60)
2.43-4.25
(110-200)
3.94-4.25
( 185-200)
5.16-5.46
(240-260)

Emissions
(tons/yr)
65-129
129-258
473-860
795-860
1032-1118


Control Effectiveness on
Other Pollutants
Dioxin
Furans
Unk
None
None
Uhk
Worsen

fair
voc
Poor
None
None
•
Uhk
Worsen

Poor
CO
Poor
None
None
Unk
Worsen

Poor
Heavy
Metals
None
Poor
None
None
None

Poor








(1  Corrected to 12% CO2» 24 hour average.

(2  'Iliis control technology has not yet been applied to refuse combustion, and has not been considered as a
    transferable technology due to as yet unresolved technological problems.

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                                                                              8.21
                UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                      Office of Air Quality Planning and Standards
                     Research Triangle Park. North Carolina 27711
MEMORANDUM

SUBJECT:  Implementation of North Countjfc'ffesAuese Recovery PSD Remand
FROM:     Gerald A. Emison, Directs
          Office of Air Quality<*faTfnTng-"and''Standards (MD-10)

TO:       Director, Air Management Division, Regions I, III, V, and IX
          Director, Air and Waste Management Division, Region II
          Director, Air, Pesticides, and Toxics Division, Regions IV and VI
          Director, Air and Toxics Division, Regions VII, VIII, and X

     On June 3, 1986, the Administrator remanded a prevention of significant
deterioration (PSD) permit decision, involving the North County Resource
Recovery project, to Region IX for their reconsideration.  The permit was
for a 33-megawatt, 1000 tons-per-day facility to be located in San Marcos,
California.  At Issue was whether appropriate consideration had been given,
within the best available control technology (BACT) determination, to the
environmental effects of pollutants not subject to regulation under the
Clean Air Act (Act).*  The remand strongly affirms that the permitting
authority should take the toxic effects of unregulated pollutants into
account in making BACT decisions for regulated pollutants.  This obligation
arises from section 169(3) of the Act, which defines BACT as the maximum
degree of emissions decrease which the permitting authority determines is
achievable, taking into account "environmental . . . impacts."  Essential
to this process is the notification to the public of how the effects of
toxic air pollutants, including those that are unregulated, have been
considered in the PSD review and the subsequent consideration of the comments
in making the final BACT decision.  The purpose of this memorandum is to
advise you of the impact of the remand on PSD permitting and to provide
implementation guidance.  This document builds upon and makes final  the
draft guidance of August 1986.
     Although the Act has given us the authority to review directly the
considerable range of regulated pollutants, the remand clearly indicates
that the Environmental Protection Agency (EPA) should incorporate considera-
tion of all pollutants within its PSD determinations for all  sources subject
to PSD.  This result is consistent with the fact that the PSD permitting
process is charged "... to protect public health and welfare from any
*A "regulated pollutant," or "pollutant subject to regulation under the
Clean Air Act," is one which is addressed by a national ancient air
quality standard, a new source performance standard, or is listea pursuant
to the national emission standards for hazardous air pollutants program.

-------
                                                                                8.21
 actual or potential adverse effect . . . from air pollution .  ..." and that
 increases in air pollution should be permitted ". .  .only after careful
 evaluation of all the consequences . . . ." [section 160(1) and (2)].

      Revisions to State implementation plans (SIP's),  to comport with  the
 Administrator's decision, should not be necessary.  State or local  agencies
 with delegated PSD programs automatically trade  this change in  policy.
 Agencies implementing their own SIP-approved programs  are also  unlikely  to
 need any regulatory changes.  This is because the remand is based on an
 interpretation of Act language, notably the definition of BACT,  that is  in
 most cases already contained in the plan.  I ask  that  you confirm this with
 your States and applicable local agencies.

 Transition

      As  with any change in the way EPA does business,  we have developed a
 transition plan for its  implementation.   The situations  can  be addressed
 most logically by dividing all PSO sources  into three  groups based on  phase
 of permitting activity:   those sources  for  which  permit  applications had
 not been filed, those for which permits had already  been granted, and  those
 for which applications  had been filed but permits  not yet  granted.

      First,  all PSD sources for which complete applications  had  not  been
 filed as  of  the Administrator's June  3, 1986,  decision are fully subject to
 the remand's requirements.  Earlier applications  present more complex
 policy considerations.

      One could argue,  since the Administrator's decision is  an interpretation
 of existing  Act provisions,  rather than a new  requirement, that all   PSD
 permits  issued under the terms of the 1977  Amendments to the Act should be
 subject to the remand.   However,  program  stability and equity to sources, in
 this second  group,  that  have relied upon  properly  issued PSD permits militate
 strongly  against  such an approach.  For these  reasons, I have decided to
 exempt from  the requirements of the remand  all sources holding finally
 Issued permits  as of June 3,  1986.   (Subsequent major modifications  to such
 existing  sources  are, of course,  subject  to PSD review,  including the
 application  of  the  requirements of  this remand.)

     The  third  group of  sources  consists  of those  for which PSO permits
were in the pipeline  (i.e.,  complete  application filed but permits not yet
 Issued) as of  the date of the remand.  It is appropriate that these  sources
also be subject to the terms of the remand.  However, for permit applications
which  have successfully  passed through the  public  comment period without
environmental effects concerns being  raised, the Regional Office may, at its
discretion, issue these  in final without  further delay.

     The above enunciated  transition  policy applies directly to all   EPA
permit Issuance procedures and also to those used by State agencies  issuing
PSD permits under a delegation of authority agreement pursuant to 40 CFR
S2.21(u).  This transition policy does not  automatically apoly to PSD

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                                                                               8.21
 permit  decisions  by  States  under SIP-approved  PSD  programs, except to the
 extent  that  environmental  effects Issues  are raised  by  commenters.  The
 policy  does  apply  prospectively  in  a uniform fashion to all applications
 filed after  June  3,  1986.   States with  SIP-approved  PSD programs  are, of
 course,  responsible  for enunciating reasonable transition schemes and I ask
 that  you encourage then to  adopt policies consistent with this one.  These
 transition schemes,  as  with the  substantive program  itself, are unlikely to
 require rulemaking;  however,  the policies should be  set forth in  formal
 statements so  as  to  further the  goals of  public awareness and consistent
 application.   These  policies  and their  implementation will be reviewed
 within  the National  Air Audit System to assess the need to require greater
 conformance.

 Required Analyses

      The BACT  requirement  outlined  in section  169(3) of the Act contemplates
 a decision process in which the  best available controls are defined for
 each  regulated pollutant that a  PSO source would emit in significant amounts.
 This  case-by-case  process is  to  take into account energy, environmental, and
 economic impacts  and other  costs.   The  toxic effects of unregulated pollutants
 are to  be accounted  for in deciding if the BACT otherwise being prescribed
 for regulated  pollutants still represents the  appropriate level and type of
 control.  If the  reviewing authority judges the potential environmental
 effects  of such unregulated pollutants  to be of possible concern to the
 public,  then the final  BACT decision for  regulated pollutants should in all
 cases address  these  effects and  reflect,  as appropriate, control beyond what
 might otherwise have been chosen.

      A  recent  remand determination  made by the Administrator in another case
 provides  further elucidation  of  the BACT  process.  In that case, Honolulu
 Program  of Waste Energy Recovery (H-Power), PSD Appeal No. 86-6, Remand
 Order (June 23, 1987),  the Administrator  ruled that a PSO permitting
 authority has  the  burden of demonstrating that adverse economic impacts are
 so significant  as  to justify  the failure  to require the most effective
 pollution controls technologically  achievable  as BACT.

      The  broad  mandate  with respect to toxics that is presented by the
 remand  is not  readily amenable to highly  detailed national guidance that
 provides  the appropriate permitting requirement in each case.  There Is no
 specific  formula  for making BACT decisions; this is a case-by-case process
 involving the  judgment  of the reviewing authority.  While it may be possible
 to develop a framework  of guidance  based  upon  such factors as risk assessment
 and reference doses, this would  entail a  large effort that seems inappropriate
 at this time.   It  1s more practical, however,  for EPA to develop guidance
 for specific source  categories that are of particular importance.  The EPA
 has recently provided such BACT  guidance  with  respect to municipal waste
 combustors.  See memorandum entitled "Operational Guidance on Control
Technology for  New and  Modified  Municipal  Waste Combustors,"  from Gerald A.
 Ernlson, Director,  Office of Air  Quality Planning and Standards, dated
 June  26,  1987.  Guidance on other source  categories may be issued from time
 to time as aoprooriate.

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                                                                                8.21
     Today's policy charges the PSD review authority with analyzing at the
outset the environmental impacts of proposed construction projects with
respect to air toxics which might be of concern, even if such matters are
not initially raised by the public.  Other types of environmental  effects
should also be addressed in response to public concerns, within the limits
of the ability to do so.  For PSD reviews consistent with this policy, each
applicable permitting authority should Initiate an evaluation of toxic air
pollutants (unregulated as well as regulated) which the proposed project
would emit in amounts potentially of concern to the public.  The review
authority should evaluate unregulated pollutants for both carcinogenic and
noncarcinogenic effects.  The National Air Toxics Information Clearinghouse
(NATICH) data base contains considerable information relevant to evaluating
the effect, sources, and control techniques available for unregulated
pollutants.  I encourage you to urge permitting authorities to use NATICH
as a source of Information as they conduct the analyses.  Further information
may be obtained by calling the NATICH staff at 629-5519.

     The response to the Administrator made by EPA Region IX in its analysis
of the North County permitting decision is attached.  Although this example
illustrates only one of several acceptable approaches, it 1s a well thought
out analysis that provides a useful example to consider for future permitting
exercises.

     Headquarters has several other mechanisms 1n effect to support analyses
with respect to-toxics.  These include a recent report which helps to
estimate toxic air emissions from various sources (Compiling Air Toxics
Emission Inventories, EPA-450/4-86-010).  The burden of proof regarding
emissions estimates, of course, rests with the applicant, but the techniques
discussed in the document should be useful 1n determining if the applicant's
estimates are reasonable and address appropriate pollutants.  In addition,
the Office of Research and Development (ORO) has released a control technology
manual which is valuable in evaluating how control devices for particulate
matter and volatile organic compounds differ in their abilities to control
various toxic species of these criteria pollutants (Control Technologies
for Hazardous A1r Pollutants, EPA-625/6-86/014).

     Support will also be available on a case-by-case basis from the Office
of Air Quality Planning and Standards (OAQPS) and ORO.  In particular, we
have formed a control technology center to provide assistance to the review
authority in determining BACT.  This center can offer a range of activities,
including evaluation of source emissions, identification of control techniques,
development of control cost estimates, identification of operation and
maintenance procedures, and, in a few situations, In-depth engineering
assistance on Individual problems.  Other planned activities include the
publication of technical guidance to assist 1n the evaluation of selected
types of sources.  Contact points for the control technology center are
Lee Beck in OAQPS (629-0800) and Sharon Hoi en in ORD (629-7607).  We expect
this support to Unit the effort required of PSD reviewing authorities.

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                                                                               8.21
 Public Participation

      One of the most important features of this policy is the requirement
 that the affected public be fully informed of the potential  toxic emissions
 from a proposed project and of what the reviewing authority has done to
 minimize this potential within the BACT decision.  A specific discussion  of
 toxics concerns in a technical support document might be helpful  in accom-
 plishing this information transfer.  Additional  concerns related  to the
 environmental effects of unregulated pollutants raised by commenters must
 then be addressed in the final BACT determination.  This process  is of
 central importance to PSD permitting and comments received must be adequately
 addressed in the final  decision.   Strong public participation is  consistent
 with the PSO goals contained in section 160 of the Act,  which relate to
 informing the public of increased air pollution, including that due to
 unregulated pollutants.

      It should be noted that although these analyses are used in  the BACT
 decision, they will  not be used as the basis  for disapproving a project
 that has agreed to apply BACT.  In other words,  today's  policy requires that
 toxics  be considered in the control  of the proposed project  only  to the
 extent  that the level  of control  chosen as BACT  is achievable.

 Enforcement

      In the case of  delegated (as opposed to  SIP-approved) PSO  programs,
 EPA  has various  enforcement tools.   Pursuant  to  40 CFR 124.19,  any  party
 that participated in the public proceedings with respect to  a proposed
 permit  may,  within 30 days  of the final  permit decision,  petition the
 Administrator of EPA to review any condition  of  that permit  decision.  The
 Administrator may also  seek to review any  such permit condition on  his own
 initiative.   Should  this appeals  procedure be unavailable in a  particular
 case, EPA has  the authority, depending upon the  facts of  the case,  to
 withdraw the delegation with respect to an individual permit that  is  being
 or has  been  issued inconsistently with  the terms of  that  delegation.  Thus,
 EPA  may be able  to directly intervene in the  issuance of a PSD  permit to
 ensure  implementation of today's  policy.   This withdrawal  of delegation is
 not  the preferred course of action but it  may be available if needed.

     The  consideration  of air toxics  in  PSD permitting is  a  requirement of
 the  Act and, through the definition  of BACT,  is  incorporated in the SIP's.
Therefore, violation of  this  policy  would  constitute a SIP violation and be
 enforceable  by EPA.  Section 113(a)  of the Act provides  for  Federal  issuance
of a notice  of violation in  the case  of  a  violation of a  SIP.   If the
 violation  continues  for more than 30 days, section  113(b)  provides  that the
Administrator shall commence  an action  for Injunction or  civil penalty, or
both.   In  addition,  section 167 of the Act specifically  provides that EPA
take legal action to prevent the  construction of a major  emitting facility
that does  not  conform to the requirements  of PSD.   Under section  167,  EPA
can  issue an administrative  order or  commence a  civil action.   Since no

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                                                                              8.21
notice of violation would be necessary, In this case, EPA can use section
167 to order  Immediate cessation of construction or operation.  Note also
that this section has been construed as providing EPA with authority to take
enforcement action against sources out of compliance with PSD even if they
have already been constructed.  These remedies are more likely to be used
in the case of SIP-approved programs than with delegated programs, for
which an appeal under 40 CFR Part 124 would generally be the preferred
course of action.

     Enforcement actions are pursued after reviewing a range of factors
relevant to each particular case.  For this reason, I am not setting forth
detailed provisions as to required enforcement measures.  There are, however,
certain situations in which enforcement action is generally appropriate.
These include procedural deficiencies, such as failure to solicit public
comment on air toxics issues for applicable permits, and failure to address
the air toxics concerns raised by public comment.  Enforcement with respect
to permits already in the pipeline should follow the transition scheme in
today's policy for delegated programs and the State or local agreement
established with EPA for SIP-approved programs.

     The Act and the PSO regulations require that States submit a copy of
the public notice for proposed permits to EPA.  I urge the Regional Offices
to ensure that such notices are submitted and are reviewed for conforraance
with the criteria contained in this document.  Although enforcement mecha-
nisms are available to address noncomplying sources, our efforts to implement
today's policy will  be much more effective if taken prospectively and in
coordination with the State permitting process.

Conclusion

     Today's guidance summarizes the broad ranging impact of the June 3,
1986, remand and provides some Insight into the analyses and public
disclosure that now should take place.  We will continue to support and
monitor subsequent decisions and-to assess the need for more detailed or
expansive guidance.   Questions on today's guidance should be addressed to
Michael Trutna (629-5345) or Kirt Cox of OAQPS (629-5399).

Attachment

cc:   C. Potter
     A. Eckert
     D. Clay
     Regional  Administrator, Regions I-X
     Air Branch Chiefs,  Regions I-X

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                                                                   8.21
                     UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                      REGION IX
                                   215 Fremont Street
                                San Francisco. Ca. 94105
 MEMORANDUM
 DATE:  August 15, 1986

 SUBJECT:  North County Resource Recovery Associates
           PSD Appeal,
 FROM:
           Air Management DiviMon, Region 9

 TO:        Lee M. Thomas, Administrator
           U.S. Environmental Protection Agency
      This is in response to the June 3, 1986 remand of
 Region  9's April 2,  1985 determination to issue a .Prevention
 of  Significant Deterioration (PSD) permit to the North
 County  Resource Recovery Associates for the construction
 of  a  1000 ton per day resource  recovery facility.  The
 remand  charged Region 9  with reconsidering the effects
 of  unregulated pollutants when  making PSD determinations.

      Region  9 has reviewed the  relevant BACT decisions
 and has  prepared a response to  the Administrator's remand,
 as  recommended in the July 21,  1986 guidance memo from
 Gerald  A.  Emison, Director,  Office of Air Quality Planning
 and Standards.   Our  response with supporting materials
 is  attached.

      If  you  have any  questions  regarding  the enclosed
materials  please contact  me at  454-3201 (FTS)  or have your
staff contact Wayne A. Blackard,  Chief of our New Source
Section  at 454-8249 (FTS).
Enclosures

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                                                                  8.21
                      RESPONSE TO PSD REMAND
        NORTH  COUNTY  RECYCLING AND ENERGY  RECOVERY  CENTER
                      (PSD  Appeal No.  85-2)


      On April 2,  1985  the Director  of  the Air Management
 Division, EPA Region 9, made a  determination to issue a Prevention
 of Significant Deterioration (PSD)  permit to the  North County
 Resource Recovery Associates (NCSRA) for the construction and
 operation of a 33 megawatt,  1000  ton per day resource recovery
 facility.  During the  following appeal period EPA received
 three  petitions filed  pursuant  to 40 CFR 124.19 requesting the
 Administrator to review Region  9's decision to issue the PSD
 permit.  The Office of the Administrator reviewed the petitioners'
 comments and Region 9's responses to the comments and determined
 that Region 9 had satisfactorily addressed all of the petitioners'
 allegations with the exception  of Region 9's assertion that EPA
 lacked the authority to 'consider' pollutants not regulated by
 the Clean Air Act when making a PSD determination.  The Adminis-
 trator felt that Region 9's  assertion was overly broad and that
 when making a PSD determination, in particular a best available
 control technology (BACT)  decision,  a permitting agency must
 consider not only the environmental  impact of the controlled
 regulated pollutant but must also consider the environmental
 impacts of any unregulated pollutants that might be affected by
 the choice of control technology.  For this reason the Adminis-
 trator remanded  the PSD determination to Region  9  for recon-
 sideration and action consistent with the above  interpreta-
 tion  of EPA authority.

      In response  to the above, Region 9 has  reviewed the  BACT
 decisions  made for the  NCRRA PSD permit.   Onder  the PSD regula-
 tions NCRRA must  apply  3ACT to control  emissions of SOj,
 lead,  mercury, and fluorides from their proposed resource
 recovery facility.   BACT  is  defined  in  the  Clean Air Act  as
 '...an  emission  limitation based on  the maximum  degree of
 reduction  of each  pollutant  subject  to  regulation  under this
 Act...on a  case-by-case basis, taking into  account energy,
 environmental  and  economic impacts and  other  costs..." Under
 environmental  impacts our  review of  the original  BACT determination
 included the  impacts  from  both regulated  and  affected unregulated
 pollutants.   The control of  particulates,  CO, and  VOC emissions
 are not directly subject to  the  federal  PSD BACT review, but
 are subject  to the nonattainment permitting regulations which
 are administered by  the San  Diego Air Pollution  Control District.

     NCRRA is proposing to use a dry scrubber with a  baghouse
 to control emissions of S02^ acid gases,  and-  particulate matter
 from the proposed  resource recovery  project.  The  dry scrubber
consists of a spray dryer  and a  baghouse.  The spray  dryer  injects
an atomized lime slurry sorbent  into  the  flue gas  stream.   The
baghouse removes the dried sorbent-and  flyash  (particulate  matter)
 from the flue gas.  The dry  scrubber  will be designed for a
 flue gas flow of 225,000 acfm at an  inlet temperature of

-------
                                                                     8.21

                               -2-
   340 degrees  P  and a maximum outlet temperature of  265 degrees P.
   NCRRA expects  the dry scrubber system to provide 83% removal of
   SO2 and 95%  removal of acid gases as well as 99.5%  removal of
   particulates.

       Recent  tests of emissions control devices for  waste fired
  boilers (the latest being the Quebec City Test Program)  have
  shown that properly designed and operated control devices can
  significantly reduce emissions from resource recovery facilities.
  In particular/  an acid gas scrubbing system operating at optimal
  stoichiometric ratios,  at low temperature,  in tandem with a
  baghouse can achieve very high removal  efficiencies of  particu-
  lates,  S02, HC1, organics, and heavy metals.  The tests  indicate
  that the NCRRA's proposed emission  control  system (lime  slurry
  spray dryer,  baghouse,  low temperature  flue  gas)  is the  most
  efficient  for controlling the  unregulated pollutants from a
  resource recovery facility.  While  certain  technologies  may have
  the  potential for greater removal of  regulated  pollutants (e.g.
  a wet scrubber  may yield  greater S02  removal),  available  data
  suggests that greater control  of unregulated pollutants  will
  not  result.   Region  9 believes  that the NCRRA's proposed  control
  technology  will  have very high  collection efficiencies of
  dioxins, furans,  and heavy metals, with collection  efficiencies
  of 95% for  HC1,  and greater than 90%  for mercury.   He conclude
  that a lime slurry spray  dryer with a baghouse provides the
  greatest degree  of control currently achievable for  the relevant
  air toxics concerns and therefore, emission  limitations based
  on the operation of a lime slurry spray dryer with a baghouse
  and continuous emission monitors constitute BACT for the control
 of S02,   lead, mercury,  and fluorides from the NCRRA  facility.

      In  addition to the proposed acid gas 3ACT, Region 9 also
 reviewed the BACT decisions made for controlling NOX emissions
 from the NCRRA facility.   NCRRA has  proposed to control NO,
 emissions with low excess air and staged combustion.  After
 reviewing all of the available  control technologies. Region 9
 believes  that the alternate NO, control  technologies currently
 available for resource  recovery do not offer any better  ccntrol
 of the affected  pollutants (organics such  as dioxins and  furans)
 than  do  the  controls  proposed  for  the  NCRRA  facility.  Our
 review included  staged combustion, selective  non-catalytic
 reduction, selective  catalytic  reduction,  wet flue gas de-
 nitrification, and the different categories  of source separation;
 Our review also  took  into  account the  effects of  the district
 permit requirements designed to  reduce organic toxic pollutants
 (minimum  1800*-P furnace  temperature and minimum 2  second
 residence time in the combustion zone),  we conclude that  an
 emission  limitation based  on the use of low excess air and
 staged combustion and with continuous emission monitors is BACT
 (considering the  effect of unregulated pollutants) at this time
 for the control of 10T emissions from  the NCRRA  facility.

     As part of our 3ACT review of the NCRRA  PSD permit,  Segion 9
 prepared several  charts listing  the availaole  SC2 and MOT  control
options for the NCRRA facility, ranked in order of control

-------
effectiveness,  witth  the estimated  impacts  of  the  controls  on
the projects' other air pollutants.  The  charts were  prepared
using data  from existing Region 9 PSD  permits, permit applications,
district permits, emission control  technology  reports from  the
California  Air  Resources Board and  the New  York City  Department
of Sanitation,  and from reports on  the Quebec  City Test Program.
The impacts on  other pollutants were estimated using  our best
engineering judgement based on the available data.  We have
included these  charts with this report for  your review.

     After  reviewing the above facts.  Region 9 has concluded
that no greater controls for the regulated  pollutants can be
applied that would be more effective in reducing the  emissions
of unregulated  pollutants.  Therefore, the  BACT proposed by NCRRA
and the BACT decisions made by Region 9 in  the April  2, 1985
PSD determination are reaffirmed as BACT  for controlling SC<2,
NOj, lead, mercury, and fluoride emissions  from NCRRA's
proposed North  County Recycling and Energy  Recovery Center.

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                                                                 8.21
                           REFERENCES
1.  Air Pollution Control at  Resource  Recovery  Facilities,
     California Air Resources  Board, May  24,  1984.

2.  Clarke, Marjorie J., Emission Control Technologies  Cor
     Resource Recovery, New York Caty  Department of Sanitation,
     March IS, 1986.

3.  Hay, D.J., Finkelsteim,  A., Klicuis, R., Masentette, L.,
     "The National Incinerator Testing and Evaluation Program:
     An Assessment of A) Two-Stage Incineration B) Pilot
     Scale Emission Control*, Presented at the 79th Annual
     Meeting of the Air Pollution Control Association,
     June 22-.21,  1986,  Minneapolis,  Minnesota.

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                              EPA Region 9  - New Source &     .1
                                        BACT ANALYSIS
                    (Ranked in Decreasing Order  of  Control  Effectiveness)
Project Category i Resource '     ary
Project Type i  1113 TTO, RC    A MM
Pol 1 utant t
Date i   Aug 15,
Project Engineer i   Bob Baker
Control Options
Spray Dryer, Alkaline
Slurry, Baghouse
Spray Dryer, Lime Slurry*
Bagttoiiee
Spray Dryer, Alkaline
Slurry, ESP
Dry Injection, Sodium
Sort >ent, Baghouae
Spray Dryer, Line Slurry,
ESP
Dry Injection, Lime,
fayliouse
Wo I Scrubbing, Alkaline
Dry Injection, Sodium
Sot bent, ESP
Dry Injection, Lime, ESP
% Control
60-95
75-90
75-90
70-85
65-85
65-80
50-90 »
50-75
40-70
Eftnlssion
Rates
Ibs/ton
(ppn) U
0.26-1.04
(9-35)
0.52-1.30
(18-44)
0.52-1.30
(18-44)
0.78-1.56
(26-53)
0.78-1.82
(26-62)
1.04-1.82
(3S-62)
0.52-2.61
(18-88)
1.30-2.61
(44-88)
1.56-3.13
(53-106)
Emissions
(tona/yr)
53-212
106-265
106-265
159-318
159-371
212-371
106-530
265-530
318-636
Control Effectiveness on
Other Pollutants
Heavy
Metals
Exc
Exc
good
Exc
Good
Good
Poor
Fair
Fair
Dioxin
Parana
Exc
Exc
good
Poor
Good
Poor
Poor
Poor
Poor
Ha
Exc
Exc
Exc
Exc
Exc
Exc
Exc
Exc
Good
Hg
Good
Good
Fair
Poor
Fair
Poor
Pair
Poor
Poor
Lead
Exc
Exc
Good
Good
Good
Good
Fair
Pair
Fair
(1  Corrected to 12% 2, 24 hour average

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                             EPA Region 9 - New Source  Secti
                                       BACT ANALYSIS
                   < Ranked in Decreasing Order of Control effectiveness)
                                          Page 2
          __ ____
Project Category!  Reeouroe Re    ry
Project Typei 111J TPD/RDP. "To ml
Pol lutant i
an i      ?
   Aug I&/
t Engineer!
                                                                              Project Engineer!  Bob Baker
Control Options
Dry Injection, Limestone,
ESP
Wet Scrifcbing, Water
Source Separation
% Control
25-40
20-30
5-10
Ehilssion
Rates
ibs/ton
(Mm) H
3.13-3.91
(106-132)
3.65-4.17
(124-141)
4.69-4.95
(159-168)
Emissions
(tons/yr) '
636-795
742-848
954-1007
Gbntrol Effectiveness on
Other Pollutants
Heavy
MeUls
Ffelr
Poor
Poor
Dioxln
Furans
Poor
Poor
Fair
Hd ~
Good
Fair
Fair
Hg
Poor
Poor
Poor
Lead
Fair
Fair
Poor
(I  Corrected to 12% O>2.  24  hour average.

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                                                                                                 cjuut  iwr
                             U'A Region  9  -  New Source Ser
                                      BACT  ANALYSIS      -
                   (Hanked  in Decreasing Order ol  Control  Effectiveness)
                                _
Project Category. Resource     "very
Project Type;  1113 TPD, Rf    j6 MJ
Pol 1 utant s _ NOg _ : _ *~"
Date;      Auq 15, 1986 _
Project Engineer:  Bob Baker _
        Control Options
    Seluctive Catalytic
     Reduction  (SCR)   <2

    Wet  Flue Gas  Denitrified-
     tion  (KU>n)   '*

    Seluctive Non-Catalytic
     Reduction  (SUCH)

    Low  Excess  Air/Staged
     Oouiujat ion

    Flue Gas Recirculation
     Source Separation












t Control
90-95

BO-90

30-60

30- 35

10-15

Minimal
Emission
Rates
Ibs/ton
 {l
0.31-0.61
( 15-30)
0.61-1.21
(30-60)
2.43-4.25
(110-200)
3.94-4.25
(185-200)
5.16-5.46
(240-260)

Emissions
(tons/yr)
65-129

129-258

473-860

795-860

1032-1118

•
Control Effectiveness on
Other Pollutants
Dioxin
Furans
link

None

None

Uhk

Worsen

Fair
voc
Poor

None

None

link

Worsen

Poor
CD
Poor

None

None

Uhk

Worsen

Poor
Heavy
Metals
None

Poor

None

None

None

Poor












(1  Corrected to 12« O32, 24 hour average.

(2  'llus control technology has not yet been applied to refuse combustion, and lias not been considered as a
    transferable teclrmlogy due to as yet unresolved technological problems.

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                            EPA KV.UJIOO 9 - New Source Section
                                      DACI ANALYSIS
                   (Ranked  in Decruasing Order ot Control Effectiveness)
Project;  North County RHF
Project Category. Resource to
Project Type;  1113 TPD. RDFT  36
Pollutant! 	NOy	
Pate;      Aug 15, 1986
Project Bigineer;  Bob Baker
        Control Options
    Selective Catalytic
     Reduction  (SCR)   <2

    Wet  Flue Gas DenUrifica-
     tioo  (rcon)   (2

    Selective Non-Catalytic
     Reduction  (SNCH)

    low  excess  Air/Staged
     Combustion

    Flue Gas Recirculation
     Source Separation
1 Control
90-95

80-90

30-60

30-35

10-15

Minimal
Emission
Rates
Ibs/ton
(ppn) Cl
0.31-0.61
(15-30)
0.61-1.21
( 30-60)
2.43-4.25
(110-200)
3.94-4.25
( 185-200)
5.16-5.46
(240-260)

Emissions
(tons/yr)
65-129

129-258

473-860

795-860

1032-1118

«
Control Effectiveness on
Other Pollutants
Dioxin
Furans
Unk

None

None

Uhk

Worsen

Fair
woe
Poor

None

None

Uhk

Worsen

Poor
CO
Poor

None

None

Uhk

Worsen

Poor
Heavy
He Lais
None

Poor

None

None

None

Poor












(1  Corrected to 12% CO2,  24 hour average.

(2  HUB control technology liaa not yet been applied to refuse combustion, and has not been considered as a
    ttausterabla teclnology due to as yet unresolved technological problems.
                                                                                                                         O9
                                                                                                                         .
                                                                                                                         K)

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                 L'NITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                  * \SHINGTO\D.C. 20*60
                                                                         OFFICE OF
SVSJSCI:  Improving New Source Review (NSR) Implementation

r?C*.:     J. Craig Potter
          Assistant Administrator
            for Air and Radiation (ANR-443)

TO:       Sec: oriel Administrator
          Recier.s »1
     Or. June 2",  1956, I established a special task force to address
growing concerns  about the consistency and certainty of permits issues
j-.cer tr.e Clear. Air Act's prevention of significant deterioration end
-cnattainmer.t area NSR programs.  Sased on "the findings and recononencations
c: tr$e tasic force, I ST. tocay estabiishinc certain program initiatives
ces:nec zc ircrove tr.e tireiiness, certair.ty, and effectiveness of these
     A creat deal cf effort will be required to overcome the probleos
-•-icr. .-.eve developed, but  it is my belief that these problems, with your
f-11 cooperation and assistance, can be  resolved so that these essential
=:r rar.acensr.t programs can fulfill their intended roles.  Therefore,  I
:r=r each c: yo!- to prcvics the ireximum  priority and resource contnitner.ts
     T'-.e c-.tsta-.cing ccr.cerr. we now face in tr.ese programs  is  inadequate
i"lener.teticr..  Trie Office cf Air ana Radiation intends to apply its
resource cctrrr.iwer.ts so ss to ennance its ability to provide technical
support er.d guidance, training, workshops, auditing, and eruSorcemsnt
E.ppcrt to tr.e r.egicns and relegated programs.  Tr.e P.egior.s.1 Offices —ust
-5
-------
                                                                            o--o

                                    -  2  -
       7ne  following is  £  list  cf  the  specific  program  initiatives  I  am
 neresy  instituting to  brine about  irorovements  in NSR irolenie.-tatior.:
             ic  Permit  Actions—Initially and until sucn tine as permit
 quality car.  x ass-red, : ar  requiring that-eacn Regional Office establish
 (if'not already in place) a program to ensure a timely and comprehensive
 review cf  all  State end local agency-issued mapr source permits and
 certain r.inor  source  permits.  Inrlerentation of the progre.T will be made
 pert of tne  Regional  Office "lanagement System and will require the "real
 tine" exchange and"review of  information oetween the Regional Office end
 tne State  and  local agencies when a key milestone is reached curing the
 permitting process.

      effective corjiunication between the permitting agency and the Recional
 Office is  essential to improving program implementation.   Tnerefore, the
 Regional Offices will need to ensure"that State and local permittinc
 agencies folio--- certain notification procedures such as:

      -  Notify the Regional Office and other affected parties (e.g., the
 ~ed=ral lend rrar.eoer  if Class I areas are iroactec), witr.ir. a reasonable
 tire,  of tne receipt of a new major source permit application.   This can
 ta'se tne fcrr.  of a complete copy of the application "itself or a brief
 description cf  the proposed project.   Notification can be made as each
 application is  received or tne ir^orrretion may be submitted to the Recional
 Office in a periodic report.

     -  £u^T»t tc tne Regional Office a complete public--notification
 psc«:age at tne begi.-.-.ir.c cf the public notice  period.   The peckaoe nust
 co-tain the puoiic notice language,  the proposed permit,  and a technical
 analysis demonstrating now the proposed project complies with the technical
 review requirements cf tne regulations [e.g.,  best available control
 tec.-.-.clogy ;=.i.C7} or  lowest achievable e,T,issior. rate (LAER), air cuai
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                                    -  3 -
 Planr.ing and Standards  (CA2?S)  to start p«crk or  the  development cf a
 permit review checxlist for use by  the Regional  Office  curing the public
 corrae.-t period.  The cneccificctio-. frcrr. a r«nor review (e.g. , "synthetic" minor sources, major
 sources netting out of review, end 99.9 or 249.9 tons per year sources).
      T.-.e rest critical sisner.t of these initiatives is the Regional Office
     sr.t period.   3y uniformly reviewing all manor source permit actions
 ;-rir.g t.->e cccner.t period,  I?A is able to address deficient reviews or
 =•=:-! ts oefcre trie final perxt is issued.  Tnis net only promotes  acre
 "-.sistsr.cy :r. tr.e permitting process aiong the States, but else provides
 — •=  -ir-.sst decree cf certair.ty to tne applicant that the permit will not
 :•= cr=lle.-.;ed  by EPA =t = later date.  Moreover, if tne perr.it is not
 :•=-le-ed  e.-.d ccrner.ted cr. pricr to issuance, tne possibility of successful!}
 :.-=llrr:rirsc tr.*  actier. is erectly ciminis.iec, as is the opportunity tc
 irrrcve t.ie er.fcrceacility'cf the permit.                 "*     '•

     SAr: Detertinatier^—:-f all tr.e SS?. processes, SACT (and LAIR)
 determinations are perr.aps  tne most misunderstood'and the least correctlv
 arpii'-..   The  EACT alternatives, if presented by the applicant at all,
are  often poorly documented or biased to achieve the decision the applicant
desires.

     To bring  consistency to the BACT process, I-have authorized OAQPS to
proceed with developing specific guidance on the use of the "top-down11
approach  to BACT.   The"first step in this approach is to determine,  for
trie  emission source in question, the most stringent control available
 fcr  a  sir.ilaf  or ider.t:c"sl  source or source category,  if it can be shown
 t.-.at tr.is  level  cf cc-.t:cl  is tecnr.ically cr eccno?7ilcally infeasibie for

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  tr-e  source  in question,  t.-er.  the  next  most  stringent  level of control is
  determined  and s^ilarly evaluated.  Tnis process  continues until tne
  51.77 level  under  consideration  cannot  be eliminated by  any substantial or
  ur.iqje  tecnnical,  environmental,  or economic objections.   Tnus,  tne
                                                                          "v
 control; the other processes required a full analysis  of  all possible
 types and levels of. control acove the baseline case.  '

      Tne "top-down" approach is essentially already required for  imnicipai
 waste combustors pursuant to the June 22, 1987, Administrator's remand to
 Serion IX of the E-?ower 3ACT decision and the OA3PS June 26,  1967,
 "Operational Guidance on Control Technology for New and Modified  Municipal
 across tne board.
      Training— Nc fcr^ie: trsininc workshops specific to NSR have been
 r.sld sir.ce lr£0.   Mar.y Stste and local agencies, as well as the Recicnal
 :f:;ces,  rave  experience: s. r.igr. rate of ~NSR personnel turnover since
 -..-•=.-..   ter.y of t.-.e sasic problems that ere occurring in KSR irolenentation
 :s-  ze  trec&i  tc  t.-.e lac', c: ccrcrehensive,  ccr.tir.Jina traininc for new
 ?.-rgior.el  Office and State soency personnel.

      Ts rectify rhis si-.jsticn,  in ?Y 1936,  OACPS will work on developina
 -£i=ri=ls for  e cor.pre.-.s-s:ve trainir.g prograr. in tne fonr, of Recional  "
 -cr
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     Ir. adciticr., Regional  Offices should  reserve  the  funds  necessary to
send at least one I?i. staff representative to  the  NS*  workshops (for EPA
=-ly) held sertier.njelly  a:  Denver, Colorado (FeDruery),  arc  Southern Pines,
N'or'tr. Caroline  (July),   i.ttendence at  these wcrKShops  plays  a vital role
ir. *eeri-:g tr.e  ?.egior.s up'to date on program urcierentatior  and new and
ererging policy.

     Pel icy and Guidance—Continuous litigation end  regulatory changes
r.ave corained vitn  the complexity of NSS rules to  create a log nem of the
policy and guidance needed"to help interpret and effectively apply these
"rules"  Therefore,  : a-r.  directing'that in  FY 1965  OAQPS  dedicate at least
cne Swiff person to ensuring a timely  response to  policy and guidance
requests.  In the interim,  I intend to continue OAQPS's  efforts to
csr.piie snd organize NSR reference end guidance materials/ such as the
SSR electronic  bulletin  board.

     I rsalire  trict the  initiatives discussed above  constitute only the
first steps of  a continuing process to address concerns  and  needs relating
to NSR program  urolenentation.  In recognition of  the  possible need to
-einiair. flexibility ir.  TEneging and insroving tne NSR process I will, as
i.-.dicctec earlier,  estaciisn a group to nonitor our  progress under this
-9« pclir/.  T.-.5 group -ill be cororised of representatives  from E?A
••esdcjarters and Segionai Offices and we will consult  with State and
Icccl" cosncy officials as part of our effort to ootain timely feedback as
-s irrls^sr.t tr.ese  initiatives.

     i.=fiticr.al specific guidance on inprovensr.ts  in the program areas
cisrussec ascve will oe  issued in the  near future.   In the meantime, each
P.ecional Office is  directed to work closely with its State and local
agencies to ensure  tr.at  all aspects of the SS3 perrit  progranB comply
wit.-, all applicable State and Federal program  requirements.

     :'cjr cr-.-er.ts  ar.d suggestions are welcome.  Please  direct then to
3=r.- .".rCjtr.-.er., Trie:, Sesl-'source Review Section,  *O-15, Researcn Triancle
? = :•-, -::rtr larclir.a  I^'ll (-TS 625-5552).

r=:  Air ^ivisicr. rirectcrs,  Regions I-X

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Source Aeview,  Prevention of Significant  jetc
      and Nonattainmen-t  Area Guidance Notebook
  Discussion flower:   \.2*



 Citation:  '.:urr»nt)   40 Cc-{

                (old.
                   .2:   J.jne 25, 1987
                  To:   Director, Mr  1dii.vj.3i.2n:  "•!•/•;-31
                       Regions I-X
                Froi-i:   Gerald A. t-nison, direct
                       OAQPS
            Subject:   Operational Guidance  on  Cont-il
                       For l',e\i and Modified  :-UIC's
                                 iviswi.-ia  aut-iori :i.;s, in
                       control options duri-uj  toe DACf
                       1ei«ir:ni nation process  for MwC's, ~. 2
                       consider ^ dry scrubber 3,-iJ i ^jjr1 :
                       Filter or electrostatic oracioi-ator  as
                       3ACT for SOo and  ?V,  ana
                       control - -is 3AC7  rjr  JJ.

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                 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
     /   -               Office of Air Quality Pfenning and Standards
' — "^-                Research Triangle Park. Norm Carolina 27711

                                     2 S  "!M  :S27
                                       • wwli  l>9/
  "EMORAND'JK
  SUBJECT:   Operational  Guidance  on  Control Tecnnology  for New  and
            Modified  Municipal  Waste Combustors  (MWCs)

  FP.OM:      Gerald A.  -mi son, Di re
            Office of Air Quality Planning and Standards  (MD-iO)
                        .t division Directors
           Regions  I,  III, V and IX

           Air  and  Waste Xanageraent Division Director
           P.egicn II

           Air, Pesticides, and Toxics Management Division Directors
                    !V  and VI
           Air ano Toxics Division Directors
           =esicns VI!, VI 1 1 and X
    .  As you know, nurae-ous Questions regarding the selection of appropriate
 :c""'.ticn ccr.trol rssuirements for MWCs have ar-'sen durino recent vears
 ;- -j-c- s:.-ce :e— ittinc :-cceec:r.=s -jntie' tr.e :-evention cf sic'nificar.t
 :=:=r-cr£--3n  •=£:', :-ov:s:ors cf D»»-t C o* -r.e :*.*2n iir ;ct anc't^.e
  •:-£tta--.-e-t  r.*w s=.-:= -sview (*JSS) provisions sf Part D of tne Act.
                                                                           iQIS
                                                              	 jnder
  :-.stts-"ie-.t '.'Sr. i-.c to resuce delay anc csr.f-.-sic? ir, tne se-Tr.itfino
 :-::sii.  ~".s :.-.:•':; -ec-jires -ev-ewi-.c autrc-r'es, in cors-'cerirc  tne
 - = -?e zf ::tr"f.s' ::-t-s" c:ticns d-j-inc t!-,e EACT c=terT5ir.et:cr. process
 -:r *;:s, to ccns-'cer c cry scruofcer enc a faaric filter or electrostatic
 srecipitator as 3ACT for sulfur dioxioe (SOg) end particulate matter  (?M),
 and combustion controls as BACT for carbon monoxide (CO).

      The Administrator remanded to Region IX on June 22, 1S87, their  previous
 concurrence or a PSD oermit for the H-Power MWC to be constructed in  Honolulu
 Hawaii.   Petif"cners hao argued that, (a) BACT for this facility did  not
 aoeauately justify the failure to require the use of an acid gas scrubber,
 c-.c i:--  the remitting authority did not evaluate the effectiveness of  ac''d
 "as 3CT'j5sei-s -in -educing emissions of unregulated pollutants, as recu'rec

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 ;;;•• the June 1986 North County Resource Recovery Associates PSD Appeal
 decision (or North County remand).  In remanding the H-?ower permit appli-
 cation to Region IX for further proceedings, the Administrator made it
 clear that the Agency consioers acid gas scrubbers to be an available
 •.rrr.rioiccy for excess air KWCs that fire refuse-derived fuel  (RDF) such as
 *...'. H-55-er facility.  The attached operational guidance states that th's
 type of post-ccmpustion control  is one coraponent'of available tecnnoloov
 -or modular,  starved air MWCs and massburn,  excess air MWCs,  in addition to
 -.3F-fired,  excess air MWCs.

      As stated above, the operational  guidance  includes a  second component
 of available  technology,  which is combustion control  for the  criteria
 pollutant CO.   Since the effectiveness of the two  components  of available
 technology  in  controlling unregulated  pollutants is  an  important consideration
 in individual  BACT determinations (per the North County remand),  the
 attached guidance states  that (a)  acid gas scrubbers  followed by  fabric
 'ilters or  electrostatic  precipitators are effective  in controlling
 :cter.tially toxic organic and metal  pollutants, as well  as  acid  gases
 cfe- tr.an  sulfur cioxide, and (b)  combustion controls  are  effective  in
 ::-trs". '.•;.-. c pctsntie'i'y  tcxic organic  pollutants.

      ~w.e technical  tasis  for  the  operational  guidance  is documented  in
 five  reports which  are a  part of  tne Agency 's'comorehensive study  of MWC.
 ir.ese vc.jp.es  are listed  in the Refe-ences section of  the guicance.  You
 *i"  -.cts tr.at  the  g-.-icaice i-.cicates  "specified values' sr.sulc  be selectes
 :•  a^s-.ts specific  sasis  for  several cesign  anc operating parameters of
 tns facility end  for  err.issions of criteria pollutants.  A thoroucn ciscussicn
 of  tr.e  factors  to be  considered in  choosing  the "selected values'"  is
 •nc'uoed in .the five  reports  from the comprehensive KWC  study.

      As  noted unoer Section V, this  guidance  should be  transmitted to el1.
 rtit* ="-^"_::a" e:5-c-ss_tc wr.icr. PSD oe-rittinc authority  r.as  been seleceted
 .*:r- -, Cr- 3r:t':"  52.21 ui.  ~*.e  trsr.s.r-ttc'!  "etts'  shcu'.i sreci'v tr.It
 :ne celegation  agreement  is emenoed  to include -tnis suidance.   States whi"ch
 -=»e  received SI5 arcroval cf a »SD  program under iC'CFR Section 51.156
 *:—•«-•;. S=:v:r -1.2^5  s-s.-lc a'sc 2s i-fc-r*c :* this c-.-iia^cs and cf
 •.;A's exreciaticr. tret i: se  f
cc:  James DeMocker
     Gregory Foote (LI-132A)
     Steve Greene (WH-565)'
     Joseph E. Lees (ANR-443)
     J. Craig Potter (ANR-443)
     John C. Ulf elder (A-101)
     Ma re i a Williams (VH-562)

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                      OPERATIONAL GUIDANCE ON -CONTROL
                      TECHNOLOGY FOR NEW AND MODIFIED
                         *.'JNICIPAL WASTE COMBUSTORS
 I.   Tne Need for Guidance.
     The concustion of municipal waste represents an increasingly inDortant
 element of the solid waste cisposal  problem in the U-.S.   However, tne
 cseration of municipal waste combustors (MWCs) releases  potentially naraful
 pollutants to the air.  Human exposure can  occur directly or indirectly,
 and there is also concern that the environment could be  vulnerable to
 ".-g-te-r. accL^'-'sticn of emitted pollutants.   £SA is  aadress:nc tnese
 •ss.-es •-• & c:-3-e-=-.5ive, ir.tegratei ".unicisal  Waste  Ccabusticn St-Sy £nc
 • •-*.  tvs c:-er»:icr.e'1.  guidance.
      N->fnerous c-jesticrs regardr,g the selection  of aspropriate pollution
 ::-t-:"  -ecj-ire-e"::  -.=ve s'-isen  durir.:  recsrt yeirs :r.  tr,cjor  source
 --'""••-•'r= crcceecir.es ur.ier the  preventer,  cf significant Deterioration
 .-$:)  provisions  of Part C of the Act and the  nonattainment new source
 -=.-5«  .'.•:-,  :-c.-s-.c-.y :f =ert :  of  tne Act.  yrcertainty over these
 :.es:-c.-.s  -.is  ',*:  ;c corfiict ever mnimum ".eoal  rssu;remer.ts  ar.fi ccnsequer.-
 :=•=>  ;-  t-e  :r-r--<-c £r: ccr-stryct-on cf  *v:s.   Herce,  tne-e is  a need
 *":- :-iC£-.ce  wC -esc've controversies  wnich  cay  arise  as  tc facil-ities
 -:--;'y,  ?»A is  :ss-ing  t^.'s  c:er£t:on£l  g-.icance
 for use in making  best  available  control technology  (BACT)  determinations
under PSD  and  lowest achievable emission -ate  (LAER) determinations under
nonattainment NSR.  EPA believes  that  this guidance will  promote consistency
in control requirements,  and  reduce delay and  confusion  in the permitting

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 rrccess.  At the same time it will  allow permitting authorities to give
 asoropriate consideration to local  factors in making case-by-care SACT
 •"*ters:i nations as reouired L-nder law.
 ".I.   ACT.-,r.istrative History.
      Section 169(2] of the Act provides  that 3AC7  aeterminaticns in ?SD
 •.«-T?nts must be "based on tne maximum  degree of  reduction  of  eacn pOML'tant
 subject to regulation under this [Act]  .  .  . which the  permitting authority,
 on a case-by-case basis,  talcing into account energy,  environmental,  and
 economic impacts and other costs, determines is  achievable."   EPA's
 recu-'cticns track this language.  See 40  C.F.R.  52.2Kb) (12),  *0 C.r.R.
 -~1. !£5!b) !12 ;.   ;i eccition,  in two administrative araeels involving
 resource recovery facilities,  £?A has further refined tne  analysis whicn
 ?e-—tv-.: a.".-:-; ties r,.s: ::-,c.-ct in -,ekir.: EACT date-sir.eticr.s.
      '." ^o-tr.  !:j-ty Resource  ^eccvc-y Associates,  s£2  Aroeal  S'c. £5-2
 •'June  2, 1566'/,  the Administrator issued  a Remand  Order which  held  that,
 •ir. r.ek--.c  EACT  ieterminations  for a regulated a:r  pollutant, the permitting
 :_•:•:-:/  -•-£-  c:-sice- t-.e effect cf tu.=t iec-s-'on  on  erissicns of zc'-'-ta-ts
 -:t  -ecjlated -jnder the C'.ean  Air Act.  Morth C-cy".ty  provided  that the
  ••i.  -.--'  :s:-i-:- £-;.': C::-TJS t-sss  e-..irc—snte"  irpects.  £r.c tr.et
 :••=  ::—•':-•'-:  s_t-:—'t>  ~ey  j'iti-ats'.y :-.cose ":re  st—:^g=-t  ertiss-cris
 ".:- its tiers  for  tne -egy*. dtsc  pollutant tnar. •, t  -ou'iS ctne-»ise  nave cr.cser:
 if it would  have  the collateral  benefit of restricting  emissions of  the
 unregulated  pollutant.  In the  North County  case,  the permitting authority
had  reouired the  use of a  dry  scrubber and fabric  filter as BACT for sulfur
 o:oxide, but had  failed to consider the effect of  that  decision  on emissions

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c* certa-.n unregulated pollutants -• dioxins -and furans, heavy  metals,  end
eCic cases -- on the grouncs  tnat it lacked authority  to do  so.   Various
PC-sons aetif.oned tne Airr.inistrator under 40 C.r.R. Part 12*.   In  response
tc tie ;cnrimstrator' s suosequent remand oroer, tne  permitting  authority
d-e'yiei the effect of various control options on these three classes of
:c". "'.tar.ts, end fc'jnd that  no otner controls on regulated pollutants woul -
be more effective in reducing emissions of the unregulated pollutants.  The
Acmnistrator tnen ruled  that the permitting authority had satisfied the
requirements of the remand  order, and denied the petitions.  See  North
"...---/ =5sc-r:e ^eccve-v  Associates, ?SD Arpeal No.  55-2, Order Denying
•-••e* !S=rtc-.re- -. 19ScK
     Tne Adninisfatcr ruled  in Honolulu Resource Recovery Facility
  ---:-=-  . "i: -"•:•' sc. -5-5, =ec,2r.c C-csr JJ-.-r.e 22, 1567),  that i  ?S3
•  -—tf": i.fC'-'t* ".ds  tw-e  b-jraei cf de^cr.strstinc that acverse econoinic
"         •         •                                •
•-racts justify tne failure to require as BACT the most effective control
-.«:•"•:"scy w^-.ich -is cve-ila&'e.  he also found that  acid gas  scrubbers are
:- :. = :';:'e ::•*.-:" t=:--.c':sy *cr sulfjr diox-ice  (SC^).  Tne  H-?o*er
:e:-s:cn a:sc p-cv-:<;ed tnat the economic impacts must  be specific to the
>:-•:* :'.  ;ta=st-:' =-c s-:stir.f.cl.  Tnus, -ece.se  t.-.e Acr:-.'stratc-
d:-=e: -'t- £:i :.f:-:r I-' tr.it '•iawe'i had r.ct acecjats'y csrcistratec  tr»e
oasis  for  its ccr.c'jS'.cn  that economic factors justified the essence  of
flue gas treatment as EACT  for S02, he remanded the  matter for  further
•srcceedings.

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      EPA today also araws upon the technical data referenced belo*. anc
 •ts experience in issuing, reviewing, and enforcing PSD permits for MWCs.
 =scent emission test date have demonstrated that participate natter (?M),
 SC>2, er.c ctner air pc'.'iutsr.ts i:ncsucing srgar.ics,  heavy sietcls, and eci:
 gases)  can be controlled effectively by acid gas scrubbing oevices (cry
 sc-jsbe-si equipoec *itn efficient particu'iate  collectors.   Over 23 MWC
 facilities in Europe are known to be operating  with dry scrubbers and
 participate collectors, and at least 37 such facilities are known to exist
 in  Japan.   In the United States,  three facilities currrently are in operation
 -:-c at  least 15  u,ave been serv;tted  to construct with  dry  serusDing end
 •;-.—.-ci/.cte cc.-.t-s'  eev-ces  as the specified technology.  Thirteen of tnese
 •"ac-.lities  are expected to oe operating  by OecenDer  19S8.
     li-=:  :•  t-'E  •r'c-.av:-.,  :t is  c'.ear  thdt &  d-y  scr^:er  fcllowed
 :.-  s'r-e-  = Js5-':  'i'.tef :r  electrostatic ?rec-':--t£tcr are  "evaiUtle"
 -.ecftnolsc-es  for  effective control of  the 502 «nd ?« emitted  by  MrfCs, and
 tr.at t-.ese  tecnnc^ocies  also  are effective in controlling emissions  of
 ::;*'-.-a"-/ t:x-': crcamc an: heavy metal sollutants,  and ecis oases
 :-.us- tf.en  S02-   '.r,  addition,  the  data show  that  these  technologies  are
 -•:'   i-'* i'c -sss:-s:'..-  s"crcaa:e.  Sisr.er'.y,  :c-.:-Mstion c:-t.-:'.«  d-e
 i".  i.5-"s:'e :=:--:'::y  *:r :•?• control of ca-S:-. -.cncxii*  ;;:;  **--.--*s
:v  ww:s, e.na ere ef'ecf.ve :r  controlling tnat criteria poV.-tant  anc
potentially toxic organic .pollutants.  EPA's information indicates  that
this technology also is  reliable and reasonably affordable.

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 ::"..  £AC7 Guicance  for  S02, PM,  and CO.
     Accordingly,  • n considering  the range of potential control options
 cj-inc tne 5AC7  iets-aii nation process for MWCs, the reviewing authority
 -»st ccnsioer  a  c-y  scrueber anc  a fasric fi":te|p or electrostatic precipitatcr
 cs 5ACT for SOj  and  ?M,  ana combustion controls as BACT for CO.  In crcer
 :: jusr-y a EACT  Getern naf.cn calling for a lesser oegree of err.issior.s
 control tr.an can be  achieved using these technologies, the serai tting
 authority must demonstrate, based on information contained in tne permit
 file, that significant technical defects, or substantial  adverse economic,
 = ~s~s.v. 2" s-vi-cr.rs^ta'i  iT.zects or other costs would arise that are
 :r::*:c tc t"£ M-C  '-. cjesticr..  3ermittirg authorities rer.ain free to
 ~e'
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   " .;r.-its for PSD pe-nits.  In addition, today's guidance  only  addresses
   ccr.trol technologies currently  in widespread use for MWCs, and establishes
   — r-ryjrr. criteria for 3AC7 determinations.  Permitting authorities  a-e not
   -s'-,5vec cf tne-ir respcr.siii" ity ts consider, cr. g case-sy-case  -asis,
   --atsve- available tecnnc'iogies may be anticipated to provide  c  greate-
   -•.-7-« cf cor.trc'. "an tnose aasressea today.  Similarly, because  centre:
   technologies end the other factors in forming BAC7 determinations  are
   constantly evolving, the technology providing the greatest degree  of
   emissions  control talcing economic,  energy, and environmental  impacts  into
   :-::.nt may likewise c-,ance over time.   As one examole,  flue gas treet-Tie-it
   •-•:--:'cay  *ar f.e  cr-.ter-.a pcT.utant nitrogen  oxices  iNOx)  is in  operafor.
   «:  o-.e "«;  in  tne J.S.,  and tnis technology shou'.d  be  considered by pernritrr.c
   '..".':•''••:'.  •• -C-.--.C l'-.Z~  csterr:nst:'cns.   In  eCC'ific^r., e~e"c-'nc  techr.c'cc:e:
   ••  -".*  : = s  c'=*-••-: T.SV  aevelc: «-"icr^ car  attain  tr.e  ":evel  cf Hju'itlBoTmtatt
   ::tt-si  currently cenionstrated  by dry  scrubbing/particulate  aatter controls,
   a-.c  tecr-.olocies  sue?-, as  t^se  snould be  conside-ed  in  future 3ACT oeterniinaf.cns.
   •=    :f--c  s.t-.o-':•=<  £".c  arc'iicants must see:  s^cgcst  of new cevelcrne-.ts.
  "• c:«r 3y,.  33, £-c S'C.
  •c'.e a".". :£gr.  sjc:sssr\"i",y  '.r.p;ese.-ited, ar.c thjs have been "ac.^ievec
•  practice" by HUCs within  the meaning of section 171(3i of the Act.
  rience, in nonattainnent areas -here NSR requirements apply and major  new
  sources and mci'fications must apply LAER,  no less effective  pollution
  cc-tro". techno",ccies nay be imcosed as LAER.

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   ».    Implementation.
        Tocay's  guidance applies to all  ongoing PSD and K'SR proceedings, as
   -ell  as to a1!  new permit aeplications.   In consideration of the needs
   -~cr jrcgre.? stair. ":ity ar.a s;jity to sources ^nicf, have in good faith
   -e'-iei on pre-existing permitting guidelines,  this guidance does not
   ;:::;•• t: ?S2  ar,c KS?.  oe-rr. t proceedings  for wmch, as of June 26, 1967,
   -"•,nal permits have alreaoy  been issued and, with respect to PSD permits
   •ss-jed by £CA.  agency review procedures  under  40 C.F.R.  Part 124 have been
   exhausted.
        ""is cce^cf.sna'i c-jicence asplies to PSD  permits issued by EPA directly
   -.•-:.:-. :ts Rec'cr.al  offices a.ic incirectly tnrcugh State and local
   agencies pursuant to  celegation agreements inade unoer 40 C.F.R. 52.21(u).
   ..:-  =:=-.:•£! «-:".  i= -::-*-r: iy letter cf tv:« s-jidance.   It will
   •:-s'--:.te a-. a^s-.c-5".t to  :r,e pre-exisfir.g oe'ie?ation agreements.   £?«
   :>£C',cr,al  offices "'ill rev:en ell  craft permits for KWCs  issued by delegate
   :=5^c-'es Curing tne public  consnent period to insure proper application.
   •".-f.e1- :-::-ar. evs'jatior,  .ill  ta'^e  slece unoer me National Air Auoit
.   5/£ts^ f'iAASK   :f delegate agencies  should fail to adhere to this guidance,
   ::-  i's.:- -•;  •-•:•£-£ s.--;-;strc-.-:vg e:;ci' ;r;;eec-;ngs ur.cgr iC C.r.R.
   :i".  '.2- '• =?:-::-• st= cases.  Such  action WQU' c" be approrr-iate wnere. *or
   r;=r;':e,  fci'.^re -.0 fc'.'.c-  -.re sjicance  results '.n a finding of fact or
•   conclusion of law  which is  clearly erroneous,  or involves en exercise of
   iiscretion or an important  policy consideration which the Aflministrator
   should review.§  See 40 C.F.R. 124.19U).  Action'would also be appropriate
   -r,e-e failure to follow the guidance  resulted  in an inability to determine,

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                                      0
 -csec on the recora, whether e clear error occurred.   If necessary, EPA
 say also revoke the delegation of ?SD authority to the State or local
 ogeicy.
      '•••tr. respect tc State -SZ permits issued purs-ant to  a  State implementation
 :'a- is:5)  program enproved by EPA under CO C.F.R.  51.166  (formerly 51.24),
 a-.c 2:2te N'S* programs ascrovec unoer Part 3 of tne Act and  iO  C.F.R.
 :1.1:5  (formerly 51.18(j)), EPA expects  States  to  follow toaay's  guidance
 •'p. generally the same fashion as delegate agencies.  EPA will use the
 guidance as  a reference point in its  oversight  of State MWC  permit  actions.
 -- -•-.-. ie^eccted  :enr.its E3i will  participate  in permit proceedings and
 .:-:.:•. NAAS evc'u-aticns.   If agencies processing KSR permits or PSD
 :e—'its  unoer approved State programs  should  fail to adhere  to  this
 r--:i-:=  E-r: -c;-  ---t'ete c:--:--;s:rd:-;v£  e".£/c- ;ui::ial action ur.cier
 = i::-:-s  li: =ic c-  1£T  :* tne  ict  in  ar:-cpr:a:e cases.-  Such  action
 -c.'.c be  appropriate where,  for  example, failure to follow the  guidance
 -es.'ts   «^ •••*."**••*.•..'_*   •_*    ^     •   •
 - " -  • Z • 5T ^^   i« "Si   •  S  •  ' V * ^* ' flT!c ^ * fij(*€**»»«» rfi^ola^C^M^  p n^  f*^^^^

 •-.:'wr-.c Agency acv.s-.s el-eefiy -ace by tne Ac-inistrator in tne Nortn
County and H-Power cases.  .To the extent the guidance addresses  the technical
•;ss-jes of availability, effectiveness, and cost of control  technologies for
MWCs,  it exprenes EPA's view regarding the proper usage,  in permit proceedings
--.:s- existing PI regulations and SI? programs, of the factual  data containec

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•r. tne five aocuments  referencec  below.   Those  cocuments  present- ir.fcrr.at-.or,
:r. tne a Iterative  controls  available  for MWCs,  the performance cap sin"! •: ties
c~c costs of these  controls,  and  the methods  for monitoring  and measuring
c-"-5i'-cns •"-:• ••'.R'CS.   ractcrs tc  se cons'.aerec  in  cnccsinc  tne "soecifiec
vc'ies" tc 3e -inc'.-jced  i"  Derrits, as  noted in  the  guidance,  such  as -.ax-.mum
.:-ci".fcf.cr. c: Z',  '. r.  sT.isSicns  anc minimum  value  cf  furnace temoerct«-s,
are contained in these  references.  Thus,  the guidance  does  not constitute
r.'eT.aking wiih:n the  meaning of  section  207(d) of  the  Act  or uncer tne
;dninistrative Procedure Act.  Accordingly, it  is not necessary to  implement
•-•':  ;L-':;-iC5, as t:  i=t 2em:ts  issued by Regional  cffices  o'r State anc
' :.i' ccer.c-es, tr'-c-cn cnenses in the ?SD recu'ations  at-0  C.'.R.  £2.21.
-•re«-se, »-e:erc:f-c  ecproved  State PSD programs, it is  not  necessary tc
 :••:* -I :.".:.. Cl.l:: =-.c  rec.-i-e csrresr:"circ SI- rev-si ens.
      ~c;-••-:" "._• ; » ^ •; s .
      "ccsy's oae'et^oie'i guioance applies  to  three  types  of  MWCs:
-as::.r'., excess a:r M.WCs; excess air  MWCs that fire refuse-derived fuel;
:•; -::.•"=-. i'.s-.rc  *•- VP.'C«.  *.t arsliss t: t"tse '-"WCs  that cse'-ete »'t^
£-=-:;. *e:c.-=-y a'-d  these  that operate without B".ercy recove'-y.  It applies
:. :::- -=.:- '=- •-:  -£;":•  -.::-.f-.ec fee:",-,t-.es cf  t-.ese  types. _ Tne c-j:cence
"r:.'"5: fit -i'.ri  ":* e~':S'.CT lir'tS  e"C  CZr'sf-.C  Zi'c'etr'S  16 £:€C'.':=

     One component  of  control  technology  for MWCs  is the  application of the
a?=-c;r-2te oost-ccroustion contra! equipment.  The £?* has  identified .
tms  eauipmentits s.  dry scrubber with  fabric  filter or  with  electrostatic

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 •-ec-pitetcr.   "r.e ccncer.trar. zr 5- sarti cylate emissions '-•.  tne  *zrc^z
 :=ses f'ctr. the sost-cornfcustion control ecuipaient shall not exceed a
 soec-.fiec maximum value;  anc tne SD2 emissions in the exhaust gases
 f-'i&°'  -.:• exceec a soecifiee r.a?-r,yp concentration value o^ tne oercent
 -ecucticn in SOg eiR'issicns across the pcst-conbustion control sou:3".ent
 sr.c'i"  -.:t ae "ess t-.ar. a  s^ecif-.ec vaiue.  Performance c: the cry  scr-j^
 :~c  fasric filter or electrostatic precipitator in contrcll''r.g ac~c
 :isas,  potentially toxic  metals, enc potentially toxic organic scr.utc.rt
 is affected sicificentlv  by the reauction in flue gas temperature wirich
 •::.-:  •'• t*»e  c-y sc—jtbe''.  ~wr co^fol  system shaV, be des^ciec1 =-i
  :i-:*.= :  ;.:•  fit t-e '"ue :a; ts'rs-at-j-e at t~e c»t".st frcr. t-.e c-y
 ;.-.::*•  ::es  -:t 6^:eec  a sssc'f:ec value.
             C  c:-r:re"t cf cc-t-c'.  technology  for M.wCs is prooer desicr,
:;••.:  ;-;i":  :c'".ta*ts.   '•"'—.-—• ccnc2r.t-=tirrs  cf 1C in eT-'ss-'or.s  fr:
"•!s  are  associetec  *ith  tne ir.o'enientafSon of several  good conoustion
:-s:f:*s.  "- = = =  :-s:f,C5S erg a".sc  rs'ated to tr.e effective cestr-jcfi:
•--2"S.  ":-ce-t->f"cr$ c*"  CC  <:?  furnace  exh&ust  cases snail  not exceed  a
::fcif'=c ~?.xi-..T  va'je,  and CO and 03  concentr»t::ns  in the sxr.iust  cases
;•=" :s ~:--t:-=:  ::-f'-.-c-js"y.   In acc-f.r",  '-jr-.ace cce-st:?c t=-re-it_--es
snail be no lower  than a  specified  minimum value,  ana  a croceaure for continuous
T.onitor-ns snail ae  established to  ensure that the soficified temoer»turs -'s
•na-'ntained.

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                                     li
     The capabilities to control flow rates anc distributions  of underfire
 ;;ri:r.ary) and overfire (secondary) air, to monitor continuously  CO
 -cncertration anc furnace temperature, to maintain thermal lo'ed  within a
 s:ec::"•.ec <-ar.ge, anc tc contra", the process to maintai-n CO end temperature
 :* tr.e •"•-•rnace at apprcjriate Teve1s are all important- to' good conoustion.
"g'a-'ec ir.r"or:,at:on ••sca'-oing tne numerical values to:be assigned  to  tr.e"
enssion levels and equipment design and operating parameters associated'
w-t^ coed combustion are provided in the documents cit«d under''References.
    :•:•"  .£31= Cc-ijsfcr St^c/:   In-issior, Zz".- Ease for
     !:al •'::*•?.::"••svcn s*--2.v:   Combustion Control  of Organic Enissic^s
     •': = " -iste Cc-rjsf'or1 Stjcy:   -lue Gas C'ssr.i'n: Techr.olboy'.
     ..  .  .. «?•«                                  "
     -«-i«-C -wi.w
     •:cl waste^p-bustion Study:   Cost of Flue Gas Cleaning Technologies.
     2C-SW-S7-C21E
     '•:** '-aste 3:-Djst:oi Stjdy:   Sampliac anci*naiysii.

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