EPA-450/2-77-027
November 1977
(OAQPS No. 1.2-084)
                    GUIDELINE SERIES
                      GUIDELINES
             FOR THE REGIONAL
         EVALUATION OF STATE
    AND LOCAL NSR PROGRAMS
  U.S. ENVIRONMENTAL PROTECTION AGENCY
      Office of Air and Waste Management
    Office of Air Quality Planning and Standards
   Research Triangle Park, North Carolina 27711
        LIBRARY
        rn,La'VIRONMENTAL PROTECTION AGfNCT
        EDISON, / '  08817

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                            EPA-450/2-77-027
                          (OAQPS No. 1.2-084)
          GUIDELINES
     FOR THE REGIONAL
   EVALUATION OF STATE
AND LOCAL NSR PROGRAMS
                 by

             Daniel J. deRoeck

         Standards Implementation Branch
        Control Programs Development Division
     U.S. ENVIRONMENTAL PROTECTION AGENCY
         Office of Air and Waste Management
       Office of Air Quality Planning and Standards
       Research Triangle Park, North Carolina 27711

              November 1977

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                  OAQPS GUIDELINE SERIES

The guideline series of reports is being issued by the Office of Air Quality
Planning and Standards (OAQPS) to provide information to state and local
air pollution control agencies; for example, to provide guidance on the
acquisition and processing of air quality data and on the planning and
analysis requisite for the maintenance of air quality.  Reports published in
this series will be available - as supplies permit - from the Library Services
Office (MD-35), Research Triangle Park, North Carolina 27711;  or, for a
nominal fee, from the National Technical Information Service,  5285 Port
Royal Road, Springfield, Virginia 22161.
                  Publication No. EPA-450/2-77-027
                      (OAQPS No. 1.2-084)
                                11

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                           TABLE OF CONTENTS

                                                                      Page

1.0  INTRODUCTION 	    1

     1.1  Special Headquarters Visits 	    2
     1.2  Use of the Guideline  	    3

2.0  NSR REGULATIONS	    5

     2.1  Permit Denial  Authority	    6
     2.2  Information Requirements  	    9
     2.3  Sources Subject to Review 	   10
          2.3.1   Source  Exemptions  	   10
          2.3.2   Major Source Requirement 	   12
     2.4  Public Comment Requirements 	   13

3.0  NEW SOURCE  REVIEW PROCEDURES 	   15

     3.1  Preliminary Application Review  	   17
          3.1.1   Application Forms  	   17
          3.1.2   Pre-Application Conference 	   18
     3.2  Implementation of Major Source Criteria 	   18
     3.3  Public Conment Procedures	21
     3.4  Engineering Analysis	22
          3.4.1   Independent Analysis 	   22
          3.4.2   Emission Factors 	   23
          3.4.3   BACT/LAER Determinations 	   24
          3.4.4   Documentation	25
     3.5  Air Quality Impact Analysis 	   26
          3.5.1   Status  of Air Quality Modeling Function  	   27
          3.5.2   Background Air Quality 	   28
          3.5.3   Averaging Time	29
          3.5.4   Allowable Emissions  	   30
          3.5.5   Critical Meteorological Conditions  	   31
     3.6  Final  Permit Determination  	   32

4.0  PERMIT AUDITS	   34

     4.1  Definition of  Permit Audit	34
     4.2  Submitting Permits for Audit  	   35
     4.3  Sources Subject to Audit	36

5.0  NSR EVALUATION FOLLOW-UP RESPONSIBILITIES  	   37

     5.1  Recommending Program Improvements 	   38
     5.2  Reporting Requirements  	   40
     5.3  EPA Assistance to States  	   41

APPENDIX A.  Example Permit Audit Form  	   42

APPENDIX B.  NSR Checklist Used for Headquarters Study  	   44

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                GUIDELINES FOR THE REGIONAL EVALUATION
                    OF STATE AND LOCAL NSR PROGRAMS

                          1.0  INTRODUCTION
     During FY 1978, EPA plans to continue its  emphasis  on  programs  for
the control of new and modified stationary sources  as  part  of the  nation-
wide goal to attain and maintain ambient air quality  standards.  An
essential part of this emphasis involves a close working relationship
with the States in order to encourage and support the  implementation of
new source review (NSR) programs at the State and local  levels  of  govern-
ment.  In order to gain a full understanding of the  current status of
State (and local) NSR programs, Regions are required  to  evaluate the
NSR programs administered in each of their States.  This requirement is
set forth in the FY 1978 Agency Operational Guidance,  which defines  a
minimum, adequate NSR program to include the following:
1.   A program to identify sources subject to NSR requirements.
2.   An established procedure for review of permit  applications, including:
     a.  an engineering (emissions) analysis
     b.  an air quality impact analysis
     c.  a complete inventory and accounting procedure to track PSD
         increments
     d.  RACT/BACT/LAER determination procedures
     e.  a description of existing air quality
3.   Established procedures by which the State  is to  seek public comment
     and by which the State notifies EPA of NSR applications, and,
4.   A program for State enforcement of applicable  requirements.
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     It should be understood that before any  general  pronouncement  of
program adequacy can be made, Regions  must determine  that  the  NSR program
not only contains the appropriate requirements  and  procedures  for imple-
menting the requirements, but also that the State can demonstrate the
ability to properly perform its  approved responsibilities.
!•!  Special Headquarters NSR Visits
     In order to get a first-hand indication  of how NSR  responsibilities
are being carried out by States, a Headquarters team, accompanied by  at
least one representative from the appropriate Regional Office,  visited  15
State and local air pollution control  agencies  during the  period from
October 1976 to January 1977.  During  each visit the  team  gathered  per-
tinent information describing the individual  NSR programs.   The agencies
provided for review such information as State and local  NSR  regulations,
written agency operating procedures, flow diagrams, organization charts,
policy memos, and case examples  of permit reviews completed  or  underway.
In addition, further information was obtained through a  series  of questions
prepared beforehand and supplemented by questions raised during the onsite
visits.  It should be noted that the interviews with  various agency personnel
provided tremendous insight concerning program operations  as well as  the
agency's own NSR philosophy.  Such information  could  not have  been  provided
by only examining the written material provided. For this  reason,  the
Regions are advised to include an onsite visit and  interview session  for
each agency that is evaluated.

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     The general findings of the headquarters visits indicate that a
combination of administrative and technical  inconsistencies  exist in
the way that State's currently implement the NSR program.   One of the
most obvious findings was that many present  air quality dispersion modeling
efforts for NSR are in their infancy and lack the desired  detail  of a com-
prehensive air quality impact analysis.   But this was certainly not the
only significant problem observed.   This guideline describes the  various
problems that were identified during the Headquarters visits.
1-2  Use of the Guideline
     Regions should use this information to  conduct similar  evaluations for
each State and local NSR program administered within their respective States.
In some cases this guideline will likely be  useful for planning upcoming
evaluation efforts.  In other cases, however, it is known  that Regions
have already begun to evaluate certain NSR programs.   Where  this  is the
case, this guideline should serve as a measure of the completeness of
such evaluations.   Indeed, it may be necessary to re-examine portions of
the programs, without unnecessarily duplicating other work already com-
pleted.
     The discussions pertaining to the headquarters trip findings  are
provided in chapters 2 and 3.  The problems  are divided into two  categories,
namely regulatory and procedural.  Although  a faulty regulation is usually
reflected in terms of an inadequate procedure, one should  never make a
simple assumption concerning the relationship of one to the  other in the
place of a close examination of each separately as called  for in  this guide-
line.

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     Because of the potential  for widespread  inadequacies  in  NSR  regulations
and operating procedures, Regions are  called  upon  to  audit State  permits
during FY 1978.  Chapter 4 defines the audit  responsibility,  thus providing
a uniform audit approach for all  Regions.
     Finally, each Region is to respond to  the  problems which  are revealed
through the evaluation process  by recommending  solutions to such  problems
and by working with the States  to solve them.   Chapter 5 describes  a  course
of action which is designed to seek program improvements in State and
local agencies.  Where the desired agency improvements cannot  be  brought
about, additional steps are defined that the  Region may need  to pursue.

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                         2.0  NSR REGULATIONS
     State NSR regulations set forth the legally enforceable  framework
by which the State is able to evaluate the performance  and location  of  new
stationary sources and the modification of existing ones.   The  Clean Air
Act requires that these legally enforceable procedures  be  a part  of  the
approved State Implementation Plan (SIP).   Although EPA efforts in the  past
have been directed toward the development  of totally approvable SIP  regu-
lations for new source control, the recent headquarters NSR visits indicate
that some regulatory deficiencies and inconsistencies  remain.   It is EPA's
continued goal to work with States to help them to establish  SIP's that are
in complete conformance with EPA's preconstruction review  requirements  for
stationary sources.
     As part of the FY 1978 evaluation commitment, Regions must evaluate
the NSR regulations contained in each State's SIP.   Unless otherwise
specified in this guideline, the Regional  Office is expected  to use  as  the
basis for comparison the minimum program requirements  described in 40 CFR
51.18, including the December 21, 1976, Interpretative  Ruling (41  CFR 55524),
otherwise known as the "offset policy."  Regions should identify  those
instances where the SIP fails to address a required regulatory  provision
as well as where a provision is addressed  but appears  inadequate.  It is
possible that certain required provisions  will not be  found in  the SIP,

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but have been only recently added to State regulations  or,  more  likely,
to their agency operating procedures.   Nevertheless,  when the  SIP  itself
is deficient or inadequate, the appropriate identification  and documentation
of the problem should be made.
2.1  Permit Denial Authority [S 51.18(b)]
     The SIP must contain the appropriate affirmative language to  ensure
that a source shall be prevented (via some official denial  process)  from
being constructed or modified unless the source  meets any and  all  precon-
struction requirements pertaining to such source.  An adequately worded
regulation has language to the effect that "no approval  to  construct or
modify will be granted if such construction or modification will result  in
or worsen a violation..."
     Inadequate permit denial authority may be the result of several types
of problems that have been identified in some  State regulations.   The
Regional Office should examine the regulations for any  of the  following:
     (1)  Non-inclusive regulatory language -  Some regulations merely
provide that a permit shall be issued if a source  complies  with  the  NSR
requirements, or that a permit may be denied if  a  source is determined

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to violate any of the requirements.   The scope  of S 5l.l8(b)  is  a
function of the scope of S 51.11(a)(4)  which  requires  States  to  prevent
construction of sources when necessary.   The  example language  above  is
not sufficiently inclusive to assure that such  prevention  will always
occur.
     (2)  Circumvention of NSR requirements - Some regulations may allow
a source to take an alternative course  of action  (e.g.,  application  of
the highest degree of control available) if the applicant  is  unable  to
meet any preconstruction requirements.   It 1s proper that  sources be
allowed to take special action as  necessary only  if such  action  will
bring the source into compliance with NSR requirements -  not  if  1t will
circumvent them.
     (3)  Defau1t prp vis1 on - This regulatory provision  requires that any
permit application not reviewed within  a prescribed period of time is to
be issued automatically.  Originally developed  to prevent  agencies from
taking an unreasonable amount of time to review permit applications, such
provisions could undermine the ability  of the State to prevent sources
which would result in violations.   (States may, however,  deny  permits
automatically if they want to maintain  rigid  review time  limits.)  The

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default provision is usually written  so  specifically that  it  is not
necessary to obtain an interpretation of it  from  agency  representatives.
Agency officials may claim that  the provision  is  never used.  Regardless,
if the provision appears  in the  State regulations,  it is not  approvable.
     (4)  Board or Commission override - Most, if not all, State  regulations
include an appeal process which  is available to sources whose permit
requests have been disapproved.   Such procedures  serve as  a legal means
of guaranteeing applicants that  an unjust or incorrect determination
has not been made in denying the permit  to them.  However, the appeal
mechanism should never be used as a means of overriding permit denials
that are based on valid technical findings.  Some States, when questioned
concerning their air pollution control boards  or  commissions, indicated
that they thought permit denials could be overridden on the basis of
equity or other non-technical rationale.  Such determinations could over-
look violations of national standards and, when this occurs,  cannot
be considered acceptable decisions.
     Regional reviewers may or may not be able to Identify the ability
of the appeals board to (Improperly)  override  valid permit denials by
checking the specific provisions of the  regulation.  If  such  ability is
not clear by examining the regulations,  then the  appropriate  agency repre-
sentatives should be questioned  about this during the on-site interview.
EPA--if not the State itself—must  intervene whenever a  source is improperly
granted a permit under such circumstances.
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     The Regional evaluation must identify any inadequate  regulatory
language, circumventive options5 or other improper regulatory  provisions
that weaken the State's authority to prevent construction  when  sources
cannot meet the applicable preconstruction requirements.   Furthermore,
States cannot be allowed to issue permits that do not  meet the  tests of
S 51.18 and other applicable NSR regulations.   The Regional  Office  should
act immediately to prevent the issuance of any such permits.
2.2  Information Requirements
     States typically require that every applicant provide information
which is to be used to evaluate the proposed source's  ability  to meet NSR
requirements.  Until some States began requiring an air quality analysis
as part of the preconstruction review process  it was expected  that  the
only information needed for review was source-specific information.   It
is now important that the applicant also submit monitored  and/or projected
ambient data, and meteorological data when requested by the State.   Some
States that do not presently perform detailed  air quality  analyses  require
that the applicant perform and submit air quality dispersion modeling results
of their own.  In a few cases, States have been known  to require from
the applicant the submission of monitored air quality  data from prescribed
locations as a prerequisite for conducting the new source  review.
     The Region should determine whether State regulations provide  suf-
ficient flexibility to require any and all information needed  to conduct
a thorough analysis.  The evaluation should also take  into consideration
the types of information currently being required by the agency pursuant
to their informational requirements.  The Regional evaluator will  have
an opportunity to discuss this matter with agency representatives  during
the onsite evaluation.

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2.3  Sources Subject to Review LS 51.18(f)1
     States are required to Identify in  their SIP  regulations  the types
and sizes of sources that are subject to review pursuant  to  NSR  require-
ments.  States have typically responded  to this requirement  by
identifying specific types of sources or equipment that they consider to
be insignificant.   Such sources are then exempted  from review  altogether.
All other sources  are required to undergo agency review and  must receive
authority to construct.
2.3.1  Source Exemptions - The State SIP(s)  should be  examined in order
to identify any weaknesses in the manner that source exemptions  are
currently written.  The following areas, in  particular, should be
reviewed:
     (1)  Routine  source exemptions - Most States  provide, in  regulatory
format, a list of  sources that are routinely exempt from  review  on the
basis of their predetermined insignificant nature.  EPA has  not  provided
firm national guidance as to what sources may be insignificant;  thus
the list of exempted sources may vary from one State to another.  There
is reason to believe that some of the sources being exempted from State
reviews can emit substantial quantities  of pollutants.    EPA is  now
considering further action on the Appendix Q exemption list  that was
proposed on July 8, 1975 (40 FR 28629).   Regions are advised not to  require
Immediate regulatory change, but to Identify sources currently exempted by
States, which do not appear in Appendix  Q, and which experience  tends to
indicate may not be Insignificant sources.
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     Another type of routine exemption  that  is written  into  some State
regulations is one that specifies  a  pollutant  load  (e.g.,  3,000 Ibs.  per
day of certain organics, or 600 Ibs. per day of  SO^}  rather  than identifying
specifically exempted sources.   Sources emitting less than the specified
amount renuire no control, while those  sources emitting more than  the
specified amount are required to control  a percentage of that amount which
is in excess.  This type of exemption does not take into account a maximum
emission rate and could allow sources to make  a  significant  contribution
to the air pollutant levels, particularly where  poor  air quality may  already
prevail.
     (2)  Special exemptions for existing sources - Some States have been
found to provide special exemptions  for certain  existing sources that make
subsequent operating changes.  It  has been found, for example, that some
existing sources may be exempt from  subsequent review if a later source
action is specifically classified  as either  a  source  "relocation," or
"reconstruction," or "replacement."   Such sources could conceivably cause
violations or contribute to existing violations  without any  preventive
action being taken by the State.   While minor  routine equipment adjustments
or replacements can be exempted, large-scale replacements, (i.e.,  50% of
the capital cost of the existing source)  generally  should  not be.  State
regulations that appear to allow existing sources to  be exempt from further
review without ample consideration of any resulting net emission increases
or of the source's changed impact  on air quality should be identified.

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     (3)  Vague regulatory language -  Some States  may unintentionally
exempt certain sources because of vague regulatory language.   For
example, several States'  regulations are known to  require  that sources
"which may result in air pollution" must obtain a  permit to  construct.
There is a chance that as a result, of  this particular language some
sources might conclude that they would not cause air pollution and,
therefore, would not need to apply for a permit.
     There is little doubt that a source must obtain a permit  if the
regulation applies to sources "from which air contaminants are or  may
be emitted."  This more inclusive language precludes sources  from
exempting themselves and allows the State to determine the ambient impact
of the source once the necessary information has been provided by  the
source.
     State regulations should be reviewed to determine whether uninten-
tional exemptions could result from vague regulatory language. Any
potential problems should be identified in the evaluation.
2.3.2  Major Source Requirement - Once specific sources have been  exempted
from the NSR requirements, all nonexempt sources must be  reviewed  for  com-
pliance with any applicable SIP emission limitations.  Beyond this level
of review, the Interpretative Ruling (41 CFR 55528) enables  States to
subject only major sources to an air quality impact analysis and to offset
requirements.  A specific major source requirement, although not in S  51.18
at this time, will likely be part of the S 51.18 amendment package now
                                   12

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under development.   When approved,  States  will  be  required to  define major
sources in their NSR regulations  as well  as  in  the approved  SIP.   In the
interim, Regions may accept State operating  procedures which achieve the
intended purpose of requiring an  air quality impact analysis for major
sources.
     The Regional evaluation should include  a review of the  State's NSR
regulations to determine whether  a  definition of major source  currently
exists.  If so, the stringency of the definition must be  compared  to the
EPA definition.  (See page  19.)  It is thought  however, that most  States
have taken a non-regulatory approach by incorporating the definition solely
in their agency operating procedures.   Further  guidance concerning the
State's implementation of major source criteria is provided  in  Section 3.2,
beginning on page 17.
2.4  Public Comment Requirements  [S 51.18(h)]
     Few States are known to have regulations,  in  their approved SIP or
otherwise, requiring that the public be given an adequate opportunity
to comment on the new source reviews.   In  many  cases, when States  have
responded to the EPA requirement  for public  comments they have  agreed
to do so through their operating  procedures.  Although S  51.18(h)  could
be strictly interpreted to require  all sources  to  undergo a  public comment
period3 such interpretation is not  currently being made by EPA.  In fact,
EPA is considering an amendment to  its public comment requirements stip-
ulating that, as a minimum, only  major sources  (see page 19 ) must  undergo
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the public comment procedure.   Therefore,  the  State's  requirements
should be examined with the understanding  that applicability is only for
major sources.   (The procedures are  discussed  in greater detail in Section
3.3, beginning  on page 21.)
     The Regional Evaluation should  identify the extent to which the SIP
provides for public comment.  Documentation should  include  (1) whether
there is a basic provision for public comnent, (2)  whether the procedure
includes all of the required provisions  of § 51.18(h), and  (3) whether
the procedure is required for at least all major sources.
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                   3.0  NEM SOURCE REVIEW PROCEDURES
     The administrative and technical  procedures  which  States  develop  to
describe their new source review process  must provide them with  an  adequate
method to evaluate each permit application in accordance with  the minimum
requirements set forth in 40 CFR 51.18.   If the procedures fail  to  do  so,
the Regional Office should identify the specific  deficiencies  and areas
of weakness and set forth plans to work with the  State  to  the  extent neces-
sary to develop fully workable NSR procedures.
     States describe their NSR process in various ways.  The description
will generally include some combination of organizational  charts, flow
diagrams, standard operating procedures,  policy memoranda, and,  perhaps,
even manuals.  This information is extremely useful  in  order to  gain a good
overview of the particular agency subject to evaluation.   The  Regional
Office may already have this information  on hand; otherwise, a request
should be made to the State agency in  order to obtain the  most up-to-date
information.  Once the Regional evaluator has reviewed  available written
descriptions of the State NSR process, it will  be possible to  anticipate
some of the problems that may exist relative to S 51.18 requirements.  How-
ever, it will almost certainly be necessary to sit  down with agency repre-
sentatives to discuss the procedures in order to  get the  "full story"  of
how the agency operates.
     The Regional evaluator must always be concerned with  the  ability  of
the State procedures to comply with applicable  NSR  requirements, however,
administrative concepts for which there are no specific requirements must
also be appraised.  This is especially important  since  most States  appear
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to exhibit a certain degree of uniqueness  in  the way  that  their  NSR  process
is implemented.   This is not to say that any  specific approach is  always
more appropriate than another, but that the administrative framework
chosen by any State should provide for effective implementation  of NSR
requirements.  For example, the evaluator  must  know the type  of  approval
system that the  State administers.  Some programs require  a permit to
construct and a  permit to operate; some only  a  permit to construct;  while
others require a "plan approval" as opposed to  a "permit"  per se.  Responsi-
bility-sharing and internal communications may  depend upon the degree of
program centralization (or decentralization).   Some programs  assign  little
or no direct review responsibility to field office personnel, while  others
rely heavily upon their technical support. In  fact,  there are States
which delegate permit-issuing authority to field engineers.
     If administrative time constraints have  been legally  placed upon the
review process (e.g., 60-day review period),  this may have an impact on
the review, often by requiring that various phases of the  review be  completed
within prescribed time limits.  Such limits may facilitate a  smooth, effi-
cient review process or they could impose  restraints  that  result 1n  incom-
plete or inaccurate reviews.
     The remaining sections in this chapter describe  for the  Regional evaluator
program areas where particular attention should be devoted in order  to  ade-
quately address  the acceptability of the State's NSR  procedures.  Whereas
most of the discussions deal with required areas of performance, some do  not.
The evaluator should not hesitate to Identify any procedure,  special policy,
analytical technique, or any other consideration that may  limit  the  State's
ability to implement a NSR program consistent with EPA requirements.
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3.1  Preliminary Application Review
     At the outset, each permit application is usually checked by a
State engineer to determine whether all required information has  been
supplied by the applicant.  Particularly where the State procedure con-
tains mandatory time constraints for either requesting additional  infor-
mation from the applicant or for conducting the entire review, it is
important that this preliminary task be performed as  soon as possible.
In any case, a review of the application for completeness should  consume
as little of the overall review time as possible, while still  providing
reasonable assurance that the necessary information is correct and
complete.
     The Regional evaluator should note that while no EPA requirements
address this aspect of the review process,  at least two possible  areas
of consideration exist where certain recommendations  may assist the State
in providing a greater degree of permit processing efficiency.
3.1.1 Application forms - States that have  been using the same appli-
cation forms for a number of years may find it necessary to  supplement
such forms in order to accomodate the receipt of special informational
requirements such as those described in Section 2.2,  page 9.  When
additional informational requirements are made it is  important to
include clear, concise instructions for properly completing  and submitting
the information.  Agencies may unnecessarily expend valuable time  in
repeated communications with an applicant who is unable to fill out forms
completely and accurately because of unclear or misleading instructions.
Such instructions can be included on the reverse side of a form,  or on
a separate sheet, as desired.
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     During the onsite evaluation  the  Region  should  seek  to  learn whether
the agency typically experiences  defficulty obtaining the correct informa-
tion frorr a source.   If inadequate instructions  may  be even  a  partial
cause of the problem, the Region  could recommend the development of more
definitive instructions.
3.1.2 Pre-application conference  - Some States have  indicated  that
meetings held with the applicant  before a formal  application is submitted
provide an excellent opportunity  to define and clarify information require-
ments as they apply to specific sources.   This option, though  voluntary
on the part of the agency and the  source, appears particularly useful  for
those sources whose informational  requirements may be extensive.  In  some
cases, a pre-application  conference with  a number of prospective applicants
called together may be the most effective way of disseminating all relevant
NSR requirements
3.2  Implementation of Major Source Criteria
     States have typically reviewed each  stationary  source to  determine
whether it will comply with applicable SIP emission  requirements.  It
has only been within the past year or so, however, that any  States have
begun to perform an air quality analysis  to determine new source com-
pliance with ambient standards.  In doing so, States have independently
sought to limit their performance of the resource intensive  modeling
exercise to only those sources whose impact was  thought to be  significant
in terms of their emission rate,  or sometimes in terms of the  location or
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the controversial nature (public acceptability)  of the  proposed source.
Consequently, a number of independent, and generally Inconsistent  defini-
tions of a "significant" source are currently in use.   These  definitions
are rarely found in the State regulations.  Instead, most  States have
chosen to incorporate the definition in their operating procedures without
supportive regulatory language at this time.
     EPA will accept a major source definition when contained only in the
State's operating procedures if it can be demonstrated  that such definition
is equivalent to the EPA definition as provided  by S 302(j) of the Clean
Air Act.  Regions should note that this new definition  supercedes the
major source definition set forth by the Interpretative Ruling (41 CFR
55528) when conducting a NSR evaluation.  States will not  be  expected to
implement the new definition until the interpretative ruling  is actually
amended.  The effective definition defines as a  major source  "any major
facility or source of air pollutants which directly emits, or has the
potential to emit, one hundred tons per year or  more of any air pollu-
tant..."  Forthcoming NSR requirements will  reflect this definition.
     In the event that a State is now applying a less stringent definition,
it will become necessary to determine, if possible, the types of sources
most likely to be omitted from the State's air quality  impact analysis.
Subsequently, precautions must be taken to assure that  sources defined as
major by EPA, but omitted by State definition, receive  the proper depth
of review prior to final permit approval.   The Regional  evaluator must also
determine that the State's application of major  source  criteria is thorough.
This is done by ascertaining that the major source criteria is applied
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to the emission rates resulting from the entire stationary source.  A
stationary source is composed of one or more pollutant-emitting facilities.
Some States Issue permits  for each  separate facility or emission point that
is part of the stationary  source.   In doing so, there  is a chance that
each facility (or emission point) will be  reviewed  Independently, and only
the emissions from that particular  component of the source will be
compared to the major source cut-off level.  The obvious result is that
a 120 tons per year major  source consisting of three facilities will
be reviewed in terms of its three separate facilities  (e.g., 30 tons,
40 tons, 50 tons) and would not be  ruled subject to the air quality
impact analysis required for major  sources.
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3.3  Public Comment Procedures
     Not all States are providing  ample  opportunity  for  public  corrment.
Some States claim, however, to  be  doing  so  in ways other than the mini-
mum requirements described in Section  51.18(h).   An  example of  this  is
a procedure by which periodic public notices are  published  (1)  summarizing
the receipt of numerous permit  applications, and  (2)  announcing permits
that have been issued.   The public is  thus  informed  only in a very gen-
eral way of agency permit actions  (with  essentially  no source-specific
information prepared for public inspection), and  is  not  provided with
a specific invitation or time within which  to comment.   For these reasons,
the example procedure is considered to be an inadequate  public  comment
procedure.
     Pursuant to EPA requirements  for  public comment, States must issue
a public notice summarizing the proposed permit action,  and make available
for public inspection sufficient information concerning  that proposed
action.   "Sufficient information"  is to  include the  following:
     0 The information  submitted by the  applicant  (excluding confi-
       dential information).
     0 The agency's technical analysis of the effects of the proposed
       source.
     0 The agency's tentative approval or disapproval, including any
       specific conditions for  approval.
Even when State procedures adhere  to the itemized requirements  of § 51.18(h),
few States, if any, currently require  that  all new source reviews be sub-
mitted for public comment.  Oftentimes,  the State implements its public
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comment procedure based upon the same  criteria used  to  perform  an  air
quality impact analysis (See Section  3-2).   As previously mentioned,
such criteria may or may not be as  stringent as the  EPA definition of
major source.  EPA does not have any provisions for  limiting the oppor-
tunity for public comment only to major sources.   Such  a provision 1s
being considered, however, and it appears to be reasonable.  In the
interim, therefore, Regions can accept procedures  that  limit public com-
ment to major source reviews.
     Each State's public comment procedures  should be reviewed  according
to how they are being implemented.  Regional evaluators should  determine
(1) whether any public comment procedure is  currently being used,  (2)
whether all of the provisions of 5  51.18(h)  are actually being  followed,
and (3) whether the agency provides an opportunity for  public comment
on at least those reviews involving major sources  (EPA  definition).
These topics should be fully addressed by discussing them with  agency
representatives and also by examining  completed permit  reviews.
3.4  Engineering Analysis
3.4.1  Independent Analysis - Each  State is  expected to have adequate
procedures (and sufficient numbers  of  qualified engineers) to perform
an independent engineering analysis.   An independent analysis requires
that any engineer assigned to a permit review be capable of thoroughly
reviewing and evaluating the basic  equipment and processes according to
the stated operating conditions, and  evaluating the  approach the  applicant
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has taken in the design of the air pollution  control  system—not merely
searching for mathematical errors  in  the emission  calculations submitted
with the application.   The engineer will have to assess the  information
contained in the application and should generally  make his own calcula-
tions to judge the necessary source compliance.
     The engineering analysis of an air pollution  control system should
Include the following technical  information:
     0 The types of pollutants emitted by the source
     0 Rate of contaminant emissions  of each  pollutant
     0 Volume, temperature and % HJD  of gas to be  handled by the air pollu-
       tion control system
     0 Adequacy of the design of the  air pollution control system
     0 Efficiency of the air cleaning device(s)
     0 Reliability of equipment  to meet standards  on  a continuing basis.
A discussion of the procedures for evaluating permit  applications and
some example engineering reviews are  contained in  Chapters 5 and 6 of
the "Guide to Engineering Permit Processing"  (APTD-1164).  This informa-
tion is appropriate background material for Regional  evaluators who will
be talking to engineers during the onsite evaluation.  The evaluator
will also find the information useful  for the permit  audits where specific
engineering analyses will be examined on a first-hand basis.
3.4.2  Emission Factors - Agencies appear to  be relying heavily upon AP-
42 emission factors to estimate the emissions from most sources.  The AP-
4? document was not originally intended for use in estimating the emissions
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from specific single sources  or processes,  nevertheless  States  use  it
because developing more accurate factors  on their own  is time consuming  and
costly.  In several cases States have developed  their  own factors for
selected source categories.   Some States  have  even chosen to adjust AP-42
emission factors to obtain more "believable"  results.  States should be
questioned concerning their ability  to derive  emission estimates from
other available methods (e.g., stack test results, emission measurements
from identifical or similar sources, material  balance  equations, and emis-
sion factors developed from similar  sources).  Wherever  possible, States
should be encouraged to place a lesser degree  of reliance on AP-42  emis-
sion factors and a greater reliance  on more source-specific estimating
methods.  The evaluation should address the State's dependence  on AP-42
emission factors relative to  other methods  that  it has been known to
utilize.
3.4.3  BACT/LAER Determinations - An important aspect  of each State's
engineering responsibility concerns  the growing  need to  define, on  a case-
by-case basis, best available control technology (BACT)  and lowest  achiev-
able emission rate (LAER).  Engineering determinations will play  an essential
role in allowing new major sources to locate in  areas  already exceeding
national standards.  New sources of  organic emissions  represent a particular
area of difficulty for many States who claim to  have little technological
experience with volatile organic compounds  (VOC) control concepts.   It
is quite apparent that States will need EPA technical  assistance  in order
to make some of the engineering determinations that will be forthcoming.
Moreover, the extent of such  assistance will depend upon the  current tech-
nical capabilities of the State..
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     The Regional evaluation must address the  Issue  of technical  assis-
tance 1n order to appropriately plan for the  allocation of regional
resources.  Specific agency experience should  be identified as well  as
any plans for the training of engineers to expand their present  capabili-
ties.  Where possible, the evaluator should identify in each State the
specific types of sources for which BACT/LAER  determinations may  have to
be made.  EPA assistance to States is further  discussed in Section
5.3, page 41.
3.4.4  Documentation - Each engineering analysis should be fully  docu-
mented and routinely retained as part of the  agency's  permit file.   This
documented work is the clearest evidence of an independent analysis.
Moreover, the results of the engineering analysis may  comprise,  in whole
or in part, the legal grounds for approving or disapproving the  appli-
cation.  The agency will be expected to respond on the basis of well-
documented facts and conclusions to any appeal  made  against the  final
permit decision.  State reviews which have been examined often suffered
from poor documentation.  Emission calculations were not always  pro-
vided or were incomplete.  Sometimes, even when it was apparent that
work had been done, pages were missing from the permit folder.
     The engineering report should contain the following:
     0 Source data and operating conditions.
     0 Technical assumptions, including references to  technical support
       documents.
     0 All calculations made by the State engineer.
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     0 Summary of findings,  including the  identification  of any design
       deficiencies and recommendations  for  modifications.
     0 Conclusions, indicating the  status  of compliance with  applicable
       emission requirements.
     0 Recommendation for approval  or disapproval  of  application  (major
       source approvals also subject  to  air  quality impact analysis and
       public comment).
     The adequacy of documentation  should  be ascertained  as a result
of the permit audits which are discussed further on page  34.   Regional
evaluators  finding inadequacies in  the State's  engineering documentation
should discuss the problem with agency officials and  stress the impor-
tance of well-documented analyses.
3.5  Air Quality Impact Analysis
     In most States currently demonstrating  modeling  capability,  agencies
have incorporated the air quality impact test into their  NSR  procedure only
within the past year or two.  Some  relatively sophisticated air quality
modeling techniques are being used  in some cases,  but all States  appear
to need substantial improvements in their  overall  procedures  in order to
conduct a comprehensive air  quality impact analysis.   This section  addresses
the major aspects of a comprehensive  air quality impact analysis.   It is
not intended to be a technical presentation  of modeling techniques  since
EPA has and continues to develop modeling  guidelines  which serve  that speci-
fic purpose.  Instead, the discussions will  focus  on  the  concept  of a
"total analysis."  It will be left for the Regional Office to make  a
judgment as to where the State procedures  currently stand, and what
specific areas of improvement are necessary.
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3.5.1  Status of Air Quality Modeling Function  -  Each  State  should  identify
all of the models that it has the capability  of using.   The  use of  the
term "models" here includes all  techniques  for  estimating ambient air
quality concentrations, including simple  screening  techniques  and programs
for pocket or desk calculators,  programmable  calculators, and  computers.
Whatever techniques are used should be well defined and  some procedural
documentation of each technique  should be maintained by  the  agency.  Where
such documentation does not exist, States may find  themselves  relying
upon the expertise of one specialized person, and should that  individual
leave the agency, there is generally no one else  who could duplicate the
technique in a timely manner or  explain analyses  already performed.  (The
documentation will also assist sources in knowing how  their  own air
quality analyses will be evaluated by the agency.)
     Included in the Regional evaluation  of the State's  modeling function
should be (1) the identification of pollutants  that the  agency has  or
intends to analyze with each available technique, and  (2) the  conditions
under which specific techniques  are implemented.  The  extent to which a
specific air quality model is suitable for  use  will  depend upon several
factors , including:
     0 The detail and accuracy of the State's data  base  (i.e., emission
       inventory, meteorological data, and  air  quality data).
     0 The meteorological and topographic characteristics of the area.
     0 The technical capability  of individuals  undertaking such techniques.
     0 The resources, in terms of monies  and  facilities  available for
       State utilization.
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     Each of these factors should be considered in  evaluating  the
State's ability to use any models available to them,  as  well  as  for
upgrading the State's modeling capabilities when necessary.
     It should be noted that many States  may not have facilities  of
their own for running sophisticated models  (i.e., computer-based  models).
Some agencies utilize computer facilities available at other  governmental
office locations, while others may operate  under contracts with  local
universities or private concerns.  Such  arrangements  should be identified
and special note made of the type of arrangement (e.g.,  time-sharing)
and the average turnaround time for test  results.   Any potential  diffi-
culties with such arrangements should be  identified.
     Some States may not perform the NSR  air quality  modeling  analysis
and thus require that the source prepare  its own (generally  via  con-
tractor assistance).  When the source is  required to  submit  a  modeling
analysis to the agency, it is essential  that the agency  be  fully  capable
of evaluating the data and the analytical results.   States  should not
accept the source's analysis without an  appropriate level  of  in-house
review.  The Regional Office should assess  any and all techniques  used
by State agencies to ascertain the accuracy and validity of  both  input
data and modeling analyses that an applicant submits.
3.5.2  Background Air Quality - Most State  air quality impact
analyses stress only the impact or contribution to ambient  pollu-
tant concentrations anticipated from the proposed source.   As  a
result, some States tend to establish arbitrary limits, based on
the percentage of the applicable NAAQS or PSD increment, that
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any source may contribute.   To varying degrees,  some  States  do  account
for the ambient contribution from natural  causes,  area  sources,  and
"existing" stationary sources.   Often  neglected  from  background  air
quality considerations is the impact  of new  sources which  have  already
received approval to construct but are not yet constructed and/or
operating.  These sources must be considered existing sources for the
purpose of subsequent new source reviews.  A complete analysis  requires
that the pollutant concentrations from the proposed source be added to
the appropriate background levels resulting  from new  source  growth up
to the proposed source's start-up date to  determine the source's impact
on the NAAQS.
     The Regional evaluation should consider the extent to which
agencies currently consider background levels for  the NAAQS.  Each
agency should be asked to describe and to  provide  any documentation
of the procedures for using its air monitoring network, specific modeling
techniques, or any combination thereof for background determinations.  Any
problems which prevent the State from adequately taking into account back-
ground levels  for new source reviews  should  be identified, whether they
be resource problems, procedural problems, technical  problems or others.
3.5.3  Averaging Time - It is generally assumed  that  the short-term condi-
tions will be the "controlling" ones  for most new  stationary sources.  For
any specific review, however, the State analysis should not  overlook the
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long-term situation when there is any reason to believe that the annual
standards (NAAQS) or air quality increment may be violated.   On  the other
hand, most States that give consideration to ambient  background  levels
seem to give considerably more attention to the annual  background than
to the short-term (more difficult, to derive) air quality background.
     State procedures should be checked to see whether  there are adequate
provisions to determine both long- and short-term background concentrations.
The use of monitored air quality data should be discussed with agency
personnel.  Where monitored data cannot be obtained from an  appropriate
local site, the use of "regional" sites or prediction from multisource
models should also be discussed.  Any resulting problems should  be iden-
tified and discussed in the evaluation report.
3.5.4  Allowable Emissions - The air quality impact analysis (whether
completed by the State or submitted by the source) must take into account
the allowable emission rate of the proposed source.  'The allowable rate
1s defined as the applicable NSPS, the applicable SIP emission limita-
tion, or an emission rate agreed to by the source as  a  permit condition,
whichever of these 1s less.  There are some instances (e.g., large buoyancy
sources) when maximum ground level concentrations may occur  at levels
less than the allowable rate and such critical emission rates should
also be given ample consideration.  However, the point  of emphasis here
1s that some States have been found to use only the actual emission rate
even though it may be substantially less than the legally allowable rate
for such source.  Use of and the actual rate is inadequate because the
maximum legal source impact could be underestimated.   Moreover,  the agency
would have no legal means of preventing the source from subsequently
emitting up to the allowable rate.
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     The State's analytical procedures should be reviewed to determine
whether allowable emission rates are used routinely for air quality  impact
analyses.   States that do not should be immediately advised of the possible
subsequent legal hazards.  The State must also make this requirement
known to potential sources.
3.5.5.  Critical Meteorological Conditions -  In order to estimate  the maxi-
mum ambient air quality impact of a proposed source, including the appro-
priate background considerations, State procedures  must take into account
the critical meteorological conditions which can reasonably be expected
to occur within the area of concern.  Some States have  expressed  diffi-
culty in being able to consistently do this.  Typically, States base
their impact analysis on a single year of data.   This is acceptable  but
multi-year data is more desirable when available.   Regional  evaluators
should discuss with agency modelers the specific meteorological data base
being applied by the State and assist them in arriving  at an acceptable
number of years of data to use to account for meteorological variations
and climatic extremes.  The agency should be asked  to describe and provide
documentation of its procedure for identifying the  "critical"  meteolorolo-
gical conditions that are used to arrive at  a final  air quality estimate.
Consideration should also be given to whether the appropriate  meteorological
data is being used in each of the models the State  uses.
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3.6  Final Permit Determination
     The final  determination to  issue  or deny  a  permit  is to  be made
only after careful consideration has been made of all  applicable  NSR
requirements, including public comment.   If the  evaluation  has already
identified a regulatory provision that allows  the State to  circumvent
a specific NSR requirement, the  operating procedures  should also  be
checked to see how such a provision  is implemented.   It is  possible
that the States may never implement  an improper  regulatory  provision
as common practice.  On the other hand, State  procedures should not
allow circumvention of NSR requirements where  regulatory provisions
clearly prohibit such circumvention.   For example, some States have
expressed a "lack of faith" in their air quality modeling results and
are thus reluctant to deny a permit  on the basis of projected ambient
air quality violations.  As a result,  the modeling results  are some-
times used as a negotiating tool to  achieve a  greater 'degree  of emis-
sion control, but not as a criterion for the final permit determination.
The Regional evaluation should include specific  questions designed
to allow agency personnel to expand  upon agency  practices that are not
readily apparent from reviewing  the  State's procedures.
     A final determination which is  forced upon  the agency  by a regu-
latory default provision (e.g.,  automatic approval after 90 days) was
described in chapter 2 as being  unacceptable.  The same is  true of
appeal board decisions which may overrule an agency's decision to deny
a permit that is based on valid  technical findings.
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     A final determination to issue a permit  should be  accompanied  by
specific conditions of that approval.   The State  procedures  should  pro-
vide for the routine conditioning of permits  and, where applicable,
might include such qualifying conditions  as:
     0 Construction start and completion  dates
     0 Fuel usage and specification
     0 Operating hours and days
     0 A requirement for approval from the agency prior to the  imple-
       mentation of design changes which  may  affect the nature  and
       amounts of emissions
     0 Specific instructions regarding the location of  permanent
       scaffolding and sampling ports
     0 Testing methods
     0 Maintenance of equipment.
     In addition to the above typical  standard  permit conditions, special
conditions may be necessary.  For example, in the event that  a  source may
be required to control emissions  to a greater degree than the normal
SIP or other allowable limit (e.g., NSPS), the  more stringent limit must
be firmly established as an enforceable permit  condition.  Moreover, any
special agreement which may be subject to future  enforcement  action,
and is a prerequisite for permit  approval, should generally  be  included
as a permit condition.  The State's procedures  should also provide  for
a legal review of special permit  conditions to  ascertain their  enforce-
ability.
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                          4.0  PERMIT AUDITS
     Permit audits are an integral  part of the Regional  commitment to
evaluate State NSR programs during  FY 1978,   Since  the  audits will
generally continue past the planned completion date of  other evaluation
activities already described, it may be possible  to anticipate the
types of problems that many audits  could reveal.  On the other hand,
the audits could be instrumental in the identification  of problems that
might not otherwise be discovered,,   It is possible  that the  Region may
find it necessary to re-examine certain aspects of  the  State program in
the event that unanticipated problems are revealed  during an audit, which
are repeated in a number of the permits audited.  However, whether the
identification of a problem actually justifies further  study of  the
State program or not, it certainly  means that the permit(s)  should not
be issued until the problem has been resolved to the Region's satisfac-
tion.
4.1  Definition of Permit Audit
     The FY 1978 permit audit is defined herein as  a two-phase examina-
tion of State permits.  Specifically the audit responsibility is to be
fulfilled by 1) a thorough examination of the State review which forms
the basis for their preliminary determination, and  2) a follow-up review
of the completed permit package when the State has  reached a final  deter-
mination.
     The two-phased approach is prescribed because  an effective  permit
audit must not only consider the final outcome of the permit review, but
should also be performed at such time during the review process  when
corrective action can most readily be taken to ensure that the  final
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outcome is correct.   Once a permit has  been issued by  the  State,  it
becomes an involved task to seek appropriate legal  action  to  invalidate
one that has been improperly issued.
4.2  Submitting Permits for Audit
     In order that the first part of  the permit  audit  can  be  completed
it is necessary for States to submit  a  permit  package  to the  Region during
or sometime before the formal public  comment period.   This may present a
particular problem insofar as some States are  not  known to provide an
opportunity for public comment at this  time.   For  such States, it will
be necessary to inform them as early  as possible,  prior to other evalua-
tion activities, of the need to submit  permits for Regional auditing.
While all States must eventually provide an opportunity for public comment,
they should be required immediately to  agree to  forward permit reviews to
EPA as they become available.  Regions  should  seek further headquarters
guidance in the event that an agreement cannot be  reached with any State
or local agency concerning this matter.
     Once received, each permit should  be audited  in sufficient detail to
ascertain that 1) the appropriate steps have been  followed, 2) adequate
documentation is provided, and (3) the  preliminary  determination  is con-
sistent with technical findings.  A recommended  format is provided for
completing each permit audit.  This,  or a similar  format, may be used as
a checklist to document each audit.   Only where  specific problems are
identified is it necessary to provide additional information  and comment.
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     The State should be notified immediately if the audit  identifies
problems.  Corrective action should be sought during the  public  comment
period or as soon thereafter as possible.   Following the  return  of comments
and recommendations to the State, it may be necessary to  work  closely
with the State to prepare an adequate permit review.  In  any case, the
Region should monitor the subsequent status of the review until  the issuance
of the final permit determination.,
     The audit of each permit is complete when an acceptable final permit
determination is made.  It will be necessary to review any  public corrments,
as well as the State's response to such comments (including modifications
to the technical analysis), and all conditions for approval as part of the
final phase of the audit.
4.3  Sources Subject to Audit
     The FY 1978 Agency Operational Guidance specifies that the  Regions
commit to a level of SSR and PSD permit audits for Class  A sources,
which are major sources as defined by S 302(j) in the Clean Air  Act,
as amended.  Regions will be expected to audit as many major source per-
mits (at least 10%) issued during FY 1978 as possible within available
resources and workload.  A reasonable estimate can be established by
using historical data for permits issued by the State as  well  as the
State's projections for the FY 1978 period.  Highest priority  for auditing
should be given to permits involving non-attainment problems (i.e.,
offset conditions apply).
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           5.0  NSR EVALUATION FOLLOW-UP RESPONSIBILITIES
     The actual evaluation of each State program 1s to be followed by a
Regional plan which identifies specific program problems and recommends
solutions for them.  The success of the Regional effort involves  not  only
a thorough program evaluation, but the ability of the Region to produce a
plan containing workable solutions that the State will agree to.   This
final chapter addresses the recommended course of action for the  Regions
to follow in order to pursue the necessary program improvements in NSR
programs.
     Two factors must be taken into account during the development of
solutions to a State's NSR problems.  First, the primary thrust of this
evaluation effort is to retain as much of the direct responsibility for
carrying out NSR's with the State as possible.   EPA's role should focus
upon program guidance and technical assistance to strengthen the  State
programs.  Second, the Regions are being called upon to seek program
changes at a time when work is underway to amend the S 51.18 NSR  require-
ments.  When the amendments are completed, States will be required to
make certain changes in their NSR regulations.
     At first sight 1t might appear inappropriate to induce program change
at a time when regulatory changes are Impending.  Yet, interim corrective
measures are not only feasible, but quite necessary if the Regions are to
ensure that State-issued permits conform to applicable NSR requirements
set forth by EPA.  Furthermore, as States begin to develop plans  of their
own to broaden their NSR responsibility for PSD as well  as for new source
control in non-attainment areas, it is imperative that all facets of  the
basic programs now in operation be strengthened as expeditiously  as possible.
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The sections that follow describe  responsibilities  that  are to  be  incor-
porated within a plan of corrective  action,   Briefly,  these activities
are designed to 1) provide recommendations  for  program improvement mainly
through changes to agency operating  procedures, 2)  require the  reporting,
by States, of certain actions  defined by  the  Region, and  3} commit EPA
support to any agency where such need is  identified.   The overall  plan
is an interim approach to resolving  the problems  that  weaken  current
program operations, yet without interfering with  the overall  objective
of seeking appropriate regulatory  changes which result in an  approvable
SIP.
5.1  Recommending Program Improvements
     Effective feedback to the State and  local  agencies  will  be instru-
mental in bringing about the improvements which the Regional  Office
deems necessary.  As a minimum, feedback  should be  provided at  two parti-
cular stages during the evaluation process;  first,  irrmediately  upon  com-
pletion of the onsite program visitation, and second,  after the Region
has had time to prepare and document solutions  to the  identified problems.
     Regional evaluators should set  aside time  at the  conclusion of  the
onsite visit to discuss the preliminary  findings  with  the appropriate
agency representatives.  No formal negotiations are to take place  at
this time; an oral summary of the  agency's  potential problems is all that
is intended.  It is possible that  during  the ensuing discussion, if  any,
agency officials may be sufficiently convinced that certain difficulties
can be adequately resolved without the need for formal negotiations.  On
the other hand, the agency may be  able to clarify any  misunderstandings
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that the evaluator could have obtained during  the  evaluation.   In  any
event, whether this immediate feedback actually  resolves  any  problems
or not, it will provide the agency with a general  understanding  of
the Regional assessment of their current program status.
     The preparation of a written plan, documenting  specific  agency
problems and recommending solutions to them, should  focus  on  the
agency's operating procedures as much as possible.   The  realization  of
more immediate corrective action is a desirable  feature  of procedural
rather than regulatory changes in addition to  the  other  reasons  for
not seeking widespread regulatory changes at the present  time.   When
situations seem to necessitate regulatory change,  however, Regions are
advised to contact Headquarters for precise guidance concerning  the
feasjbility of specific changes being sought.  Consideration  should
also be given to the idea of seeking State participation  in the  draft-
ing of solutions.  The agency's own insight insofaras what it can  or
cannot be reasonably expected to accomplish in a particular manner
or by a certain time could avoid lengthy negotiations at  a later date
while still arriving at reasonable solutions.
     Once a plan has been completed, with or without prior consultation
with the appropriate State or local agency, all  recommendations  should
be formally presented to the agency.  On certain parts of the plan,  an
agreement may be reached immediately, although full  implementation of
a new or revised procedure may involve some delay.   Interim reporting may
be required.  This is described in the following section.  Where certain
changes are to be gradually developed or phased  in,  specific  milestones
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of progress should be required for subsequent  monitoring  by  the  Region
on a periodic basis.   Where changes may require  a  significant  resource
commitment by the agency, the grant process  should be  used to  negotiate
the final  agreement.   The final  agreement  should include  not only the
changes agreed to, but the details  of the  commitment in terms  of respon-
sibilities to be assumed, manpower requirements, and monies  to be expended.
     It is EPA's objective that  the State  be given every  opportunity to
implement, and thus retain primary responsibility  for, as many NSR
responsibilities as practicable.   The ultimate inability  to  successfully
negotiate  the appropriate corrective measures  with each State  may result
in the assumption of unwanted program responsibility by the  Regional
Office.  The importance of seeking direct  State  involvement  cannot  be
overstressed.
5.2  Reporting Requirements
     In conjunction with any agreement to  bring  about  changes  in a  State's
current mode of operation, the Region must require the State to  report on
any permit action which when taken would lead  to the issuance  of an improper
permit approval.  This requirement applies to  situations  where 1) a State
agrees to a change but additional  time is  required for full  implementation
to occur, and 2) a State does not  agree to make  necessary changes in  its
program.  The Regional should identify those specific  situations where
reporting is to be required.  However, it  may  not  always  be  possible  for
the State to report prior to the action being  taken in certain instances.
Such a case is when an air pollution hearing board improperly  overrides
a permit determination made by the reviewing agency.   It  will  be possible
                                  40

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to report beforehand, for example, on permits that would have to be issued
pursuant to a default provision (see page 7).  Once reported, appropriate
action would have to be taken to see that the applicable review requirements
are met before a permit is issued.  Hopefully, the State will continue to
conduct the necessary review once the Region acts to override the particular
problem at fault.
5.3  EPA Assistance to States
     The third part of the plan should include a Regional commitment to
provide program guidance and technical assistance as part of the overall
upgrading of the State NSR program.   Regional assistance is likely to be
a major concern when RACT/BACT/LAER determinations are called for.  Head-
quarters has developed a clearinghouse function to facilitate the dis-
tribution of such determinations as  they become known.  In this way,
when a new control technology is put into practice all States can be in-
formed of it.  Regions will be advised of continuing developments in
this particular area.
     Since most States have not entered into the modeling of new sources
until recently, various types of assistance will probably be needed to con-
duct an adequate air quality analysis.  EPA modeling guidelines should be
made available to States and special training efforts may be justified to
expand a State's current level of expertise.  Regions should call upon head-
quarters for assistance in terms of special contracting support or direct
manpower support as needed.
                                  41

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                             APPENDIX A
                      EXAMPLE PERMIT AUDIT FORM
I.   PRELIMINARY AUDIT
A.   Background Information
     1.   State
     2.  Agency Name and Address
     3.  	  New Source
         	  Modified Source
     4.  Brief Description of Site Location:

     5.  Date Application Receive by State
         Date Preliminary Determination Completed
     6.  Agency Prepared (Adequate, Inadequate) Public Notice.
B.   Engineering Review                                        YES   NO.
     1.  Agency conducted independent analysis                 	   	
     2.  Agency calculated allowable emissions                 	   	
     3.  Agency calculated actual emissions                    	   	
     4.  Agency calculated potential emissions                 	   	
     5.  Agency used AP-42 emission factors                    	   	
     6.  Applicable degree of control (circle one):
         a. SIP       b. BACT        c.  NSPS       d.  LAER
C.   Air Quality Impact Analysis                               YES   N0_
     1.  Agency applied a simple screening technique           	   	
     2.  Agency applied more detailed dispersion model         	   	
     3.  Assessment included (circle appropriate items):
         a.  NAAQS: Annual standard       Short-term standard
         b.  Background air quality: Annual impact     Short-term Impact
         c.  Emissions: Actual      Allowable

                                  A-l

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D.    Remarks:


II.   FINAL AUDIT
     1.   Permit	    Approved	    Disapproved	    Other Action  (specify)
     2.   Agency  	Received public comment
                 	Responded to public comment
     3.   Permit Conditions:	Standard Conditions  of Approval
                            	Special  Conditions Developed
                            	Conditions Appear Enforceable
                            	Conditions Appear Sufficient
     4.   Conclusions:
         	Permit Determination is Consistent with Agency Analysis
         	All Information Necessary for Audit was Readily Available
         	Permit Review was Well Documented
         	Technical Support Data Maintained in Permit File
     5.   Remarks:
                                   A-2

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                             APPENDIX B
              NSR CHECKLIST USED FOR HEADQUARTERS  STUDY
I.   PROGRAM OVERVIEW
A.   Program Philosophy
     1.  Current NSR responsibilities   SSR	  NSPS	   PSD	   NESHAP_
     2.  Political climate for NSR (Gov/mayor, Agency,  public, etc.)
     3.  Program priority for NSR
     4.  Plans to accomodate new source growth via SIP  revisions
     5.  Emphasis on public involvement
     6.  Role of modeling in NSR
B.   Organization
     1.  Organization structure, lines of responsibility
     2.  Types of people involved (focal  point?)
     3.  Hdqtr/District operations (communic,  supervision,  overview)
     4.  Roles of other agencies
     5.  Anticipated changes
C.   Resources
     1.  Approximate $ for NSR (% personnel,  % equipment)
     2.  Number of persons involved
     3.  Available equipment (access to computer?)
     4.  Status of emission inventory
     5.  Number permits reviewed annually (major sources)
                                  B-l

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II.  PROGRAM IMPLEMENTATION
A.    Source Applicability and I.D.
     1.   Define:  source (plant,  facility,  emission  point)
                 major source -  modified source
     2.   Source exemptions (which  ones)  (what  criteria)
     3.   Source identification
     4.   Source tracking system  (status, exempt  sources, approval/
         disapproval)
     5.   Central  NSR file
B.    Permit System/Engineering
     1.   Standard application forms
     2.   Information requirements
     3.   What emissions are considered (allowable - SIP/NSPS,  fugitive,
         actual, worst case, peak  loading)
     4.   Emission estimates (emission  factors, % control,  specs.)
     5.   RACT/BACT policy
     6.   Application check points  (completeness, tech  accuracy,  emission
         verification)
     7.   Length of typical review  (major review)
C.    Air Quality Assessment
     1.   Types of models used by agency (individuals responsible)
     2.   When is modeling performed  (source size, special  conditions)
     3.   Screening techniques
     4.   Can source be required  to model/monitor
     5.   Background determination  (long-term/short-term)  (methods)
     6.   Access to meteorological  data (use of meteorologist)
                                  B-2

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     7.  Documentation of analysis
     8.  Incorporation of modeling with engineering analysis
III. ENFORCEMENT
A.    Legal Authority
     1.  Legal guidance (ARC lawyer, other)
     2.  When can agency legally prevent permit
     3.  Can agency legally require - source  to  model/monitor; permit
         conditions; controls >  NSPS; any information; emission tradeoffs
     4.  Enforce AQ - on plant property; over water bodies;  rough  terrain;
         no receptors
     5.  Authority to accept delegations
     6.  "Interfere with attainment or maintenance  of NAAQS1  'non-
         attainment area1"
B.    Surveillance
     1.   Enforcement responsibility (what agency,  persons)
     2.   Procedure for enforcement action
     3.   Current surveillance activities
     4.   Source compliance with preconstruction  information  (inspections,
         source test, reporting requirements)
     5.   Permit violations (preconstruction, post-construction,  post-
         operation)
     6.   What permit Information is enforceable  (emission  data,  control
         equipment, % efficiency, process Information)
     7.   Responsibility for subsequent violations  (after approval)
                                  B-3

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                                   TECHNICAL REPORT DATA
                            (Please read Instructions on the reverse before completing)
1. REPORT NO.
 EPA-450/2-77-027
                                                           3. RECIPIENT'S ACCESSION-NO.
4. TITLE AND SUBTITLE
 Guidelines for the Regional  Evaluation of State  and
 Local  New Source Review  Programs
             5. REPORT DATE
              November 1977
             6. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)

 Daniel  J.  deRoeck
             8. PERFORMING ORGANIZATION REPORT NO.
               OAQPS 1.2-084
9. PERFORMING ORGANIZATION NAME AND ADDRESS
 U.S.  Environmental Protection  Agency
 Office of Air and Waste  Management
 Office of Air Quality  Planning and Standards
 Research Triangle Park,  N.C.   27711
                                                           10. PROGRAM ELEMENT NO.
             11. CONTRACT/GRANT NO.
12. SPONSORING AGENCY NAME AND ADDRESS '
                                                            13. TYPE OF REPORT AND PERIOD COVERED
                                                            14. SPONSORING AGENCY CODE

                                                             EPA      200/04
15. SUPPLEMENTARY NOTES
16. ABSTRACT
 This report provides  the necessary guidance  for the evaluation  of State and local
 agencies conducting new source review  (NSR)  programs.  In addition to defining a
 minimum level of  adequate program responsibility, the guideline identifies problems
 which may be common to a number of agencies.   Essential NSR program considerations
 are described in  terms of regulatory requirements and agency operating procedures.
 Also described  is the EPA regional responsibility for auditing  State-issued
 permits for completeness and enforceability.   Regions are also  expected to document
 evaluation findings and to prepare a report  containing recommended solutions to
 those difficulties identified.  Negotiations with each agency should produce a
 commitment to undertake steps necessary  for  program improvement.
17.
                                KEY WORDS AND DOCUMENT ANALYSIS
a.
                  DESCRIPTORS
b.IDENTIFIERS/OPEN ENDED TERMS  C.  COSATI Field/Group
 Air Pollution
 Emission  Limits
 Evaluation  Guidance
 Air Pollution  Control Agencies
 Air Pollution Control
 Stationary Sources
 New Source Review
 Permits
18. DISTRIBUTION STATEMENT

 Unlimited
19. SECURITY CLASS (ThisReport)
 Unclassified
21. NO. OF PAGES

    50
20. SECURITY CLASS (Thispage/
 Unclassified
                           22. PRICE
EPA Form 2220-1 (9-73)

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