United States       Office of Air Quality  .     EPA-340/1-84 014
            Environmental Protection  Planning and Standards      September 1984
            A9en<=y         Research Triangle Park NC 27711   »eptemDer T 984
            Air
&EFW      Compilation Guide
            Of Procedural
            Decisions  on EPA
            NSPS Reference
            Methods

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                                  EPA-340/1-84-014
Compilation Guide of Procedural
      Decisions on EPA NSPS
          Reference Methods
                       by

                PEDCo Environmental, Inc.
                 "11499 Chester Road
                 Post Office Box 46100
               Cincinnati, Ohio 45246-0100
                Contract No. 68-01-6310
                Work Assignment No. 94
               EPA Project Officer: John Busik
               EPA Task Manager: Kirk Foster
                    Prepared for

            Stationary Source Compliance Division
           Office of Air Quality Planning and Standards
            U.S. Environmental Protection Agency
                Washington, D.C. 20460

                  September 1984

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                                 DISCLAIMER


     This report was prepared by PEDCo Environmental, Inc., Cincinnati, Ohio,
under Contract No. 68-01-6310, Work Assignment No. 94.  It has been reviewed
by the Stationary Source Compliance Division of the Office of Air Quality
Planning and Standards, U.S. Environmental Protection Agency and approved for
publication.  Approval does not signify that the contents necessarily reflect
the views and policies of the U.S.  Environmental Protection Agency.  Mention
of trade names or commercial products is not intended to constitute endorse-
ment or recommendation for use.  Copies of this report are available from the
National Technical Information Services, 5285 Port Royal Road, Springfield,
Virginia 22161.

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                                  CONTENTS


Figures	        iv
Acknowledgment	       v

     1.   Introduction	     j

     2.   Procedures for Handling Alternative Methods and Procedures
            Requests	     3

               Guidelines for Evaluating and Submitting Alternative
                 Methods	     3
               Recommendations for Establishing a Filing System for
                 Procedural  Decisions 	    n

     3.   Performance Testing Issues  and Responses	    16

     4.   Compilation of Procedural Decisions 	  	    25

               Subpart (40 CFR 60)
                    A         General  Provisions.  .  	    27
                    D.Da      Fossil  Fuel-Fired Steam Generators.  ...    32
                    F         Portland Cement Plants	     47
                    H         Sulfuric Acid  Plants	     49
                    I         Asphalt Concrete Plants 	     52
                    J         Petroleum Refineries	     54
                    K         Storage Vessels for Petroleum Liquids  .  .     57
                    L         Secondary Lead Smelters 	     59
                    N         Iron and Steel  Plants  (BOF)	     61
                    0         Sewage  Treatment Plants 	     64
                    R         Primary Lead Smelters	     68
                    S         Primary Aluminum Plants 	     70
                    T         Phosphate  Fertilizer Plants  (wet  process
                               phosphoric acid  plants	     72
                    X          Phosphate  Fertilizer Industry (granular
                               triple superphosphate storage
                               facilities)	     74
                    AA         Electric Arc Furnaces  (steel industry).  .     76
                    GG         Stationary Gas  Turbines	     79
                    HH         Lime Manufacturing Plants	     83
                Appendix A    Alternative Methods  	     86

              Subpart (40 CFR 61)

                    F         NESHAPS  for Vinyl Chloride	    89
                    H         NESHAPS  for Benzene	    92
                                    111

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                                   FIGURES

Number                                                                  Pa9e
   1      Alternative Method Approval Request Form 	     9
   2      Technical Assistance Request Form	    12
   3      Format for Logging Procedural Decisions	    15
                                      IV


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                               ACKNOWLEDGMENT


hv PFn?ISpre|?0rt Wa! npre?ared for the U'S< Environmental Protection Agency
by PEDCo Environmental, Inc.. Cincinnati, Ohio.  Mr. Kirk Foster was the EPA
Task Manager   Mr. William G. DeWees served as PEDCo's Project Director and
MV  Th«,nas Clark was the Project Manager.  The principal author is Mr? William
         ine author would like to thank Mr. Roger Shigehara for the develop-
        the paper entitled Guidelines for Evaluating and Submitting Alternative
        included as part of Section 2, Mr. Dick Dubose and Mr. Brian Beals of
        v tor their assistance in project planning and resources, and the EPA
regional and headquarters staff who made available their procedural  decisions.

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                                  SECTION 1
                                INTRODUCTION

     The U.S. Environmental Protection Agency's (EPA) Standards of Performance
for New Stationary Sources are contained in Title 40 Part 60 of the Code of
the Federal Regulations (40 CFR 60).  The reference test methods for these
performance standards are in Appendix A of 40 CFR 60.  Because many of the
performance standards use the same reference method(s), each performance stan-
dard contains a subpart on test methods and procedures that describes addi-
tional requirements, specifications, calculations, and procedures to make the
application of the reference method more specific to each source category
(source specific).  These additional requirements and specifications provide
a better defined source specific reference test method.  Furthermore, as a
result of the large variation in process and control equipment design and
operation and testing conditions, numerous performance evaluation applications
and techniques must be defined on a site specific basis.  Decisions on these
site specific procedures, not addressed in the Federal Register, have been
made by the EPA Regional and Headquarter Offices.  The Stationary Source Com-
pliance Division (SSCD) maintains a record of all "applicability determina-
tions" made in response to written requests regarding 40 CFR 60.  A compila-
tion of the determinations, which includes many/performance testing decisions
is provided to the EPA Regional  Offices.  Other EPA groups have logged their
decisions and made some decisions known through announcement in the Federal
Register.  To date, however, no complete compilation of performance test re-
lated decisions is available on a national  basis although these decisions can
have a significant impact on defining both the regulations and test methods.
     The purposes of this manual are to 1)  provide a compilation of the past
performance test procedural decisions, 2) explain how alternative procedures
and methods should be submitted for review and approval and documentation,
and 3) provide a list of example performance test questions and the correspond-
ing responses from the EPA Regional Office staff on how these questions are

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 generally handled by the Regional Offices.  The procedural  decisions included
 in this manual deal only with the decisions made to develop, execute,  and
 evaluate the performance tests as they relate to the reference test methods.
 All  procedural decisions with respect to the applicability  of regulations for
 specific sources and continuous emissions monitoring have been excluded  from
 this compilation.
      This compilation represents an initial  step to provide better documenta-
 tion and summarization of these procedures.   If program resources  permit,
 this compilation will  be periodically updated and/or an alternative methods
 clearinghouse will  be established.
      It is important that States delegated New Source Performance  Standard
 (NSPS)  responsibility are promptly  informed  of EPA decisions  on  the methods
 and  performance standards.   The attempt  to gather procedural  decisions for
 this compilation greatly demonstrated the urgent need to  improve the system
 for  obtaining and documenting procedural  decisions  and  to better inform  the
 delegated States of their responsibility.
      Section  2 of this  compilation  contains  a  description of  the guidelines
 for  evaluating and  submitting alternative methods  and the procedures for  re-
 questing  approval of alternative methods  and other  technical  assistance.
 These procedures and criteria should  help facilitate  the application and
 approval  of alternative  methods  and procedures  and  improve  the documentation
 and  reporting  of the decisions  at the  regional  and  state agency levels.   Section
 3 consists of  a  compilation of  responses  from  the  EPA Regional Offices to issues
 related to performance testing.   These issues were  selected from a  list of
 questions compiled  by EPA Headquarters as  a result  of inquiries from field
 personnel.  Section  4 consists of a compilation of  past performance testing
 decisions that have  been  organized in alphanumeric  order according  to the
 subparts of 40 CFR  60.  The reference and  supportive material for the decisions
 are  kept on file  by  the agency making the  decision.  This material  was too
 extensive to attempt to  include  in this compilation and the  intent of each
 decision can generally be properly explained only by the individual charged
with making the decision.

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                                  SECTION 2
                 PROCEDURES FOR HANDLING ALTERNATIVE METHODS
                           AND PROCEDURES REQUESTS

     This section consists of the Guidelines for Evaluating and Submitting
Alternative Methods  paper, procedures for requesting approval of alterna-
tive methods, and other technical assistance and recommendations for estab-
lishing a filing system for the procedural decisions.

2.1  GUIDELINES FOR EVALUATING AND SUBMITTING ALTERNATIVE METHODS
     The NSPS regulations (40 CFR Part 60) provide for the application and
approval of alternative test methods and procedures for new source performance
tests.  This document describes procedures and criteria to facilitate the
application and approval of alternative methods and procedures.  Because
similar provisions are contained in 40 CFR Part 61, which pertains to hazardous
air pollutant standards, this document also applies to the methods contained
in Appendix B of 40 CFR Part 61.
2.1.1  Authority C itations
     Reference methods and approved alternative methods are published in
Appendix A of 40 CFR Part 60.  These methods are cited in i 60.8 (Performance
Tests) and § 60.11 (Compliance with Standards and Maintenance Requirements) in
Subpart A (General Provisions).  Specific authorized uses of the 40 CFR Part
60 Appendix A methods are described in the standards of performance contained
in the subparts of Part 60, beginning.with Subpart D.
     Within each standard of performance, a section entitled "Test Methods and
Procedures" (or similar) is provided to 1) identify the test methods applica-
ble to the facility subject to the respective standard and 2) identify any
special instructions or conditions to be followed when applying a method to
 Roger Shigehara, Guidelines for Evaluating and Submitting Alternative
 Methods.

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 the respective facility.   Such instructions may establish,  for example,

 sampling rates, volumes,  or temperature,  and may either supplement or replace
 procedures in a reference method.   As  an  example, §  60.46(b)  states:

           For Method 5, Method 1 shall  be used to select the  sampling
      site and the number  of traverse sampling points.   The  sampling
      time for each run  shall  be at least  60 minutes  and the minimum
      sampling volume shall  be 0.85 dscm (30 dscf) except that smaller
      sampling times or  volumes, when necessitated by process  variables
      or other factors,  may be approved  by the Administrator.   The
      probe and filter holder  heating systems in  the  sampling  train  shall
      be set to provide  a  gas  temperature  no greater  than 433°K (320°F).

      Similarly,  for sources subject to  emission  monitoring  requirements, the

 standards  of performance  provide specific instructions  pertaining  to  the use

 of  a  reference or alternative method in the subpart  or  in the continuous moni-
 tor performance  specifications in  Appendix  B of  Part 60.

      The  approach followed  in the  formulation  of the reference methods involves
 specifications for equipment,  procedures, and  performance.  In concept, a

 method  based totally on performance specifications allows the  greatest flexi-
 bility  to  the user.   In practice,  however,  this  approach  is impractical because

 in  most cases performance  specifications  cannot  be established.  Most of the

 methods in Appendix A of Part  60,  therefore,  involve specific equipment speci-
 fications  and procedures, and  only a few methods  rely solely  on performance
 criteria.

      EPA recognizes  that minor changes in the  reference or alternative methods
 do  not necessarily  affect the  validity of the  test results, and that accept-
 able  alternative  methods exist.  Therefore,  §  60.8(b) provides authority for
 the Administrator to  specify or  approve revisions to reference methods or the
 use of alternative methods.   It  states:

          Performance tests shall  be conducted and data reduced in
     accordance with  the test methods and procedures contained in each
     applicable subpart unless the Administrator  (1) specifies or
     approves, in specific cases,  the use of a reference method with
     minor changes  in methodology	(3) approves the use of an
     alternative method the results of which he has determined to be
     adequate  for indicating whether a specific source  is in com-
     pliance	

     Guidelines and further explanation of alternative  methods are given  in

the introduction to 40 CFR Part 60  "Appendix A - Reference Methods."

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     Section 60.13(1) covers the approval of alternatives to continuous moni-
toring procedures or requirements as follows:
          After receipt and consideration of written application, the
     Administrator may approve alternatives to any monitoring proce-
     dures or requirements of this part	
     The source should clearly understand that unless otherwise identified
(see next paragraph) the use of all such methods and changes should have
prior approval of the Administrator.  A State or local  agency or a source
that employs such methods or deviations from the reference or approved alter-
native methods without obtaining prior approval does so at the risk of sub-
sequent disapproval and retesting with approved methods.
2.1.2  Approval Authority
     The "Administrator" has the authority to approve revisions or alternative
methods.  In § 60.2, the "Administrator" is defined as  "the Administrator of
the Environmental Protection Agency or his authorized representative."  Autho-
rized representatives are officials in the EPA Regional Offices or in State
or local governments that have been delegated responsibility for enforcing
regulations under 40 CFR Part 60.  However, in cases where decisions could
affect uniform, nationwide application of the standards, e.g., new methods
or procedures, the approval authority lies within the Emission Standards and
Engineering Division of the Office of Air Quality Planning and Standards.
     Approval of alternative methods or procedures may  be requested in a number
of instances:
     1.   Contingency.   Because of unforeseen occurrences during the test or
peculiarities of the test site, the tester may need to  modify sampling pro-
cedures.  Approval of such modifications applies only to the test being con-
ducted.  Examples of these occurrences or peculiarities are using a fewer
number of traverse points because of time limitations,  substituting one
traverse point with another because of interference from a structural support
in the stack or ductwork, and using a flask-evacuation  pressure of 4 in. Hg
absolute instead of 3 in. Hg for Method 7 because of problems with the vacuum
pump.
     Contingency requests are of necessity handled in the field by the Admini-
strator's representative in the EPA Regional Office or  State or local

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government.   It  is  the  performance  tester's  responsibility  to  provide an
evaluation of how the alternative affects  the final emission results and
relevant information that support the evaluation.  The Administrator's repre-
sentative may approve or disapprove the alternative based on an engineering
evaluation of the material presented and other relevant information.  If there
is no clear indication  as to how the results will be affected, decisions may
be made based on engineering judgment.  However, if a decision is made to
approve the alternative method, then subsequent use of the  alternative on the
test for which it was approved is not to be  used as the basis  to reject the
test at a later time.  All approved alternatives must be described in the test
report.
     In some  cases, the Administrator's representative may  elect to postpone
the decision  for an alternative until the  test samples are  analyzed and the
emission rates calculated.  In this circumstance, after the results have been
calculated, the performance tester is given  the option of voluntarily voiding
the test and  performing a retest.  Generally, the Administrator's representative
accepts tests where calculations show that the source is clearly in compliance.
Another test  may be requested if calculations show marginal compliance.   For
example, if the alternative tends to cause emission rates to be positively
biased and the calculated emission rate is less than the standard, then the
source would  be clearly in compliance, and the test would be acceptable.  If,
however, the  alternative tends to cause the  calculated emission rate to be
negatively biased and the calculated emission rate is just below the standard,
a retest may  be requested.  This final decision is based on the estimated
negative bias of the alternative.
     2.   Minor Changes in Procedures or Equipment.   Within the reference
methods, certain equipment or procedures are cited as being acceptable or
potentially acceptable options by the phrases "subject to the approval  of the
Administrator" and "or equivalent."  Detailed descriptions are not provided
because they are not necessarily acceptable in all  applications.   These
options may be used without prior approval  of the Administrator,  at the dis-
cretion of the tester,  provided the tester is responsible for:   1) assuring
that the equipment and procedures are in fact applicable and are properly
executed;  2)  including a written description of the equipment and procedures

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 in  the test report; and 3) providing any rationale or supporting data neces-
 sary to show their validity in the particular application.  The written pro-
 cedures must be clear and must be capable of being performed without additional
 instruction.  The degree of detail should be similar to the detail contained
 in  the reference methods.  Failure to meet these requirements can result in
 the Administrator's disapproval of the option.  The basis for a negative de-
 cision should be thoroughly explained.
     Other minor deviations from the sampling and analytical procedures must
 be approved by the Administrator prior to use, e.g., using a Teflon-lined
 probe in Method 8 and changing the peroxide reagent from 3 percent to 6 per-
 cent for Method 6.  Requests for approval should be directed to the appropriate
 regional, State, or local authority.  All requests for and all approvals or
 disapprovals of such minor deviations should be in writing.  All requests
 should include the following information:
     a.   The specific portion or portions of the method that are being
          affected.
     b.   A description of each deviation.   The following should be consid-
          ered as appropriate:  description of equipment with sufficient
          specifications and calibration procedures to show that the equip-
          ment is capable of meeting the specified requirements; clearly
          written procedures capable of being performed without additional
          instructions; correct calculations and equations; adequate quality
          assurance and quality control  procedures and performance criteria;
          sufficient precision and accuracy; absence of or known sampling
          and analytical interferences;  limitations placed on its use;
          applicable range of method.
     c.   Rationale or supporting data.   Rationale or supporting data that
          demonstrate the validity of the deviation should be included.   The
          following should be considered:  laboratory tests; field compara-
          tive tests; 1iterature documentation (include copies); theoretical
          considerations; statistical  calculations or comparisons;  biases.
     3.   New Methods.  New methods are  those methods or portions (e.g.,
sampling or analytical procedure) of methods that differ in principle from
the reference methods.  For example,  a requested alternative to Method  7
might be an impinger train sampling procedure instead of grab sample flasks;
or it might be an ultraviolet instead of the phenoldisulfonic acid analytical
procedure; or it might be an instrumental method.

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     All requests of this nature should be made to the U.S.  Environmental  Pro-

tection Agency, Emission Measurement Branch, MD-19, Research Triangle Park,

NC 27711.  All requests must be in writing using the form shown in Figure  1
and should include the following:

     a.   The specific application of the alternative.  The  specific
          source or category of sources for which the alternative would
          apply.  The applicable ranges of concentrations,  precision,
          interferences, any known limitations, and purpose  for conduct-
          ing the test (e.g., compliance, research, operation and
          maintenance, control  system optimization, etc.).

     b.   A description of the  alternative method or equipment.   All
          alternative methods must be clearly written and must be capable
          of being performed without additional instructions (the degree
          of detail  should be similar to that contained in the reference
          methods).   The method should include the following items:
          applicability of the  method, definition of terms,  description
          of apparatus including applicable equipment specifications,
          list of reagents, sampling and analytical procedures,  calibra-
          tion procedures including frequencies of recalibration, calcu-
          lation procedures, and references.   If applicable, quality
          assurance and quality control  procedures and performance cri-
          teria should be included.   If the alternative method is a
          standard method (e.g., ASTM procedures), a copy should be  pro-
          vided.

     c.   Rationale or supporting  data.   Rationale or supporting data that
          demonstrate the validity of the alternative should be  included.
          As a minimum, the request should include the following as  applicable:

          1.   Laboratory tests against "knowns," with sufficient data to
               establish the precision and accuracy of the method under
               laboratory conditions.   At least three levels should  be
               used,  with one close to the level  of the standard.

          2.   Data  to show that calibration  can  be conducted to show com-
               pliance with the proposed specifications.  Proposed frequency
               of calibration should also be  included.

          3.   Comparative data under field conditions with  the  reference
               method.   Generally,  at least nine  sets of comparative  data
               (paired tests) at representative levels of concentrations
               (close to the level  of the standard)  should be adequate.
               A statistical  evaluation  of the data should be provided.
               Generally, for the  method to be acceptable, a t-test  com-
               parison should show that  there is  no bias  at  the  95 percent
               confidence level  or that  the bias  is positive.  However,  if
               the data show good  agreement (i.e., within 5%)  with the ref-
               erence method and good precision,  but the  t-test  comparison

                                      8

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                     ALTERNATIVE METHOD APPROVAL REQUEST
!•  Re.gtiestinc| 0rgan 1 za t i on

Name
Address
Contact Person	Telephone


II.   Specific Application of the Alternative Method
State specific source category of sources for which alternative would apply.
Include applicable ranges of concentrations, precision, interferences, any
known limitations and purpose for conducting the test.
III.  Description of the Alternative Method

Submit a clearly written description of the alternative method capable of being
performed without additional instructions (the degree of detail should be simi-
lar to that contained in the reference methods).  If the alternative method is
a standard method (i.e., ASTM method), a copy should be provided.
      Figure 1.  Alternative method approval request form.

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IV.  Supporting Data

Include any rationale or supporting data that demonstrate the validity of the
alternative.  As a minimum, the following should be submitted as applicable-
(please check if submitted)

     Laboratory tests with sufficient data to establish the precision and
     accuracy of method under laboratory conditions.

     Data to show that calibration can be conducted to show compliance with
     the proposed specifications.

     Comparative data under field  conditions with the reference method.

     Data to show the adequacy of  the quality assurance,  quality control, or
     performance criteria.



            Figure 1.   Alternative method approval  request form,   (continued)
                                    10

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               yields a value outside the range of acceptability, the
               method could still be approved, depending on the application
               and circumstances (e.g., the emission levels are well below
               the standard) or with certain restrictions.        -   -  ..,
          4.   Data to show the adequacy of the quality assurance, quality
               control, or performance criteria.
2.1.3  Correspondence Control
     1.   Upon receipt of the written application, the Administrator, or
authorized representative must conduct a technical review of the material  and
provide a written approval or disapproval.  All disapprovals should clearly
state the reasons for denial.  When additional technical assistance is re-
quired, the Regional Office or the Emission Measurement Branch may be contacted.
Figure 2 is an example of the form that can be used to seek technical assistance.
     2.   So there can be a record of all requests, approvals, and disapprovals,
a copy of all pertinent correspondence should be sent to the Emission Measure-
ment Branch.  This record would provide a source of information for testers
and regional, State, and local authorities to facilitate decisionmaking.
     3.   Requests for new methods or procedures that are of limited applica-
tion, generally to one or two sources and specific to a source, may be answered
by the regional, State, or local authority, with approval from the Emission
Measurement Branch.
     4.   Approved alternatives with nationwide applicability will be consid-
ered for publication in the Federal Register under the proposal and promulga-
tion processes of rulemaking.  Letter approvals may be used as the means of
using such alternatives in the interim before promulgation.

2.2  RECOMMENDATIONS FOR ESTABLISHING A FILING SYSTEM OF PROCEDURAL DECISIONS
     The small number of procedural decisions that were made available by the
EPA Headquarter and Regional Offices indicate that more attention needs to be
paid to putting these decisions in writing and establishing a central filing
system to log and retain the decisions.  A compilation of the decisions will
provide greater national consistency in decisionmaking and additional technical
assistance to the State and local agencies when it is needed.
     The filing and/or logging of the decisions in a single location could
also prove to be useful to agencies performing these duties by providing the

                                     11

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                        TECHNICAL ASSISTANCE REQUEST
 I.    Requesting Organization

      Name and address:
      Contact Person
                                           Telephone
 II.
Statement of Request  (State the nature of the  request  or give  a  brief
description of the type of assistance needed.)
In'  Background Information  and Supporting  Data   (Provide any available back-
     ground information,  past  decisions,  supportive data or other information
     that could be  helpful.)
         Figure 2.  Technical assistance request form,   (continued)

                                    12

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Technical Assistance Request (continued)
IV.  P rocedure s or Solu t ions Con, sidered  (Provide a listing of all the proce-
     dulres" and/or solutions that are under consideration by the agency and/or
     source.  Please indicate if any of these have been previously implemented
     by the agency and which procedure is preferred by the agency.)
                Figure 2.  Technical assistance request form.


                                     13

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technical staff a reference to determine  if a similar procedural decision has
been made in the past.  Therefore, it is  suggested that all agencies delegated
NSPS and NESHAP authority establish a filing and logging system.
     It is recommended that the procedural decisions be logged using the same
format as those in Section 4.  Figure 3 is an example sheet that can be used
to log procedural  decisions.  A code should be established for the agency
using the applicable subpart letter as the first digit of the code.  The
sheets can be arranged in a binder according to subpart.   To increase the
effectiveness of the file and provide ready access, it is also recommended
that all  the supportive documentation on each procedural  decision be copied
and put in a separate folder in the file.
                                    14

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                                  SECTION 3
                  PERFORMANCE TESTING ISSUES AND RESPONSES

     This section consists of a compilation of responses from the EPA Regional
Offices to issues related to performance testing.  The issues were selected
from a list of questions compiled by EPA Headquarters as a result of inquiries
from field personnel over a period of several years.  Each response represents
a summary of individual responses to the questions by each Regional Office.
It is felt that these questions are good representations of some of the
issues and problems that agency personnel are confronted with during perform-
ance test planning and execution.   The responses also demonstrate the need
for increased documentation of alternative methods and procedures and techni-
cal assistance to the NSPS delegated agencies.   Agreement on the response
does not mean that it is correct or suitable.  There may be agreed upon re-
sponses that may be incorrect as a result of the lack of a formal determina-
tion by EPA on the question.
                                     16

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                                   SECTION 4

                      COMPILATION  OF  PROCEDURAL  DECISIONS


     This section  contains  procedural  decisions on NSPS regulations and

methods.  The decisions are arranged according  to their applicable subpart of

40 CFR 60.  All decisions for SSCD have  the  subpart  letter followed by a dash

and a number.  Further information can be obtained from SSCD by citing the

code number.  The  EPA Regional Office  decisions have the subpart letter, a

dash, and the region's number.  Additional information on these decisions

also can be obtained  by calling the  specific Regional Office.  A listing of
the EPA Regional Contacts is shown below.

     The extremely small number of procedural decisions indicates that most

EPA groups had not set up a separate file and/or had not put their decisions

in writing.  In an effort to provide a more  useful update to this manual, it

will be necessary  and is advisable for all agencies delegated NSPS and NESHAPS
authority to make  their decisions in writing and put a copy in a separate

file for the purpose  of obtaining national consistency in the decisionmaking
process.
List of Regional Contacts

Chief, Air Section
Environmental Services Division
U.S. EPA, Region I
60 Westview Street
Lexington, MA  02173

Di rector
Environmental Services Division
U.S. EPA, Region III
Sixth and Walnut Streets
Philadelphia, PA  19106

Chief, Air Compliance Branch
Air Management Division
U.S. EPA, Region V
230 South Dearborn  Street
Chicago, IL  60604
Chief, Air Monitoring Section
Environmental Services Division
U.S. EPA, Region II
Raritan Depot
Edison, NJ  03837

Chief, Air Management Branch
Air and Waste Management Division
U.S. EPA, Region IV
345 Courtland Street, Northeast
Atlanta, GA  30365

Director
Environmental Services Division
U.S. EPA, Region VI
1201 Elm Street
Dallas, TX  75270
                                     25

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Director
Environmental Services Division
U.S. EPA, Region VII
25 Funston Road
Kansas City, KS  66115

Director
Air Management Division
U.S. EPA, Region IX
215 Fremont Street
San Francisco, CA  94105
Di rector
Environmental Services Division
U.S. EPA, Region VIII
Post Office Box 25366
Denver, CO  80225

Director
Environmental Services Division
U.S. EPA, Region X
1200 Sixth Avenue
Seattle, WA  98101
                                     26

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                                      TECHNICAL REPORT DATA
                              (Please read Instructions on the reverse before completing)
 1. REPORT NO.
                                2.
                                                               3. RECIPIENT'S ACCESSION NO.
 ». TITLE AND SUBTITLE
  Compilation Guide  of Procedural Decisions on EPA NSPS
  Reference Methods
                                                                i. REPORT DATE
                                                                 September 1984
                . PERFORMING ORGANIZATION CODE
 7. AUTHOH(S)

  William DeWees
               8. PERFORMING ORGANIZATION REPORT NO
           IQ ORGANIZATION NAME ANO ADDRESS
                                                                10. PROGRAM ELEMENT NO"
  PEDCo Environmental,  Inc.
  505 South Duke Street,  Suite 503
  Durham, North Carolina   27701-3196
               11. CONTRACT/GRANT N6.

                 68-01-6310
                 Task No. 94
 2. SPONSORING AGENCY NAME ANO ADDRESS

 U.S.  Environmental Protection Agency
 Stationary Source Compliance Division
 Washington, D. C.  20460
               13. TYPE OF REPORT ANO PERIOD COVERED
                  Final  Report
               14. SPONSORING AGENCY CODE
 5. SUPPLEMENTARY NOTES                            \	\	

 EPA Project Officer for  this report was  Kirk Foster, telephone:s (919) 541-4571
       This manual presents  a compilation  of the past performance test procedural
 decisions.  The manual also explains how alternative procedures and methods  should
 be  submitted for review  and approval and documentation.  Finally, this manual
 provides  a list of example issues related to performance testing and the correspond-
 ing responses from the EPA Regional Offices.
 7.
                                 KEY WORDS AND DOCUMENT ANALYSIS
                   DESCRIPTORS
b. IDENTIFIERS/OPEN ENDED TERMS  c! COSATI Field/Group
 NSPS
 Performance testing
 Performance testing procedures
 Unlimited
                                                 19. SECURITY CLASS (Tin's Report)
                                                      Unclassifi ed
                             21. NO. OF PAGES

                                    93
2O. SECURITY CLASS (Thispage)

     Unclassified
                                                                             22. PRICE
EPA Form 2220-1 (R«v. 4-77)   PREVIOUS EDITION is OBSOLETE

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