SCAQMD RULE 2012-5 LARGE SOURCES AND PROCESS UNITS
LAST REVISED 07/12/96

(Amended July 12, 1996)

CHAPTER 5
__________________________________________________________________
LARGE SOURCES AND PROCESS
UNITS - SOURCE TESTING

TABLE OF CONTENTS

CHAPTER 5 - LARGE SOURCES AND PROCESS UNITS - SOURCE TESTING

A. Test Methods ...................................................................................... 2012A-5-1

B. Number of Tests ................................................................................. 2012A-5-2

C. Testing Frequency ................................................................................ 2012A-5-2

D. Sampling Time and Test Procedures ..................................................... 2012A-5-2

E. Guidelines for Testing to Establish Emission Rate for Large Sources ....... 2012A-5-2

F. Guidelines for Testing to Establish Emission Rate for Process Units ........ 2012A-5-6

G. Equipment Tune-up Procedures ............................................................ 2012A-5-7

This chapter contains the source testing frequency requirements for large sources. Also included are the source testing methods and procedures necessary for a Facility Permit holder of a large NOx source or process unit to establish an alternative emission factor. The Facility Permit holder of a large source or process unit may use a statistically equivalent methodology upon approval by the Executive Officer. Statistically equivalent methodologies shall be submitted to the Federal Environmental Protection Agency as an amendment to the State Implementation Plan (SIP).

Large sources and process units differ in the methodology used to evaluate source test data and determine the validity of the results.

Every large NOx source shall be source tested no later than December 31, 1996 for Cycle 1 facilities and June 30, 1997 for Cycle 2 facilities, and every three years thereafter. In lieu of submitting the first source test report, the Facility Permit holder may submit the results of a source test not more than three years old which meets the requirements of this Chapter. The Facility Permit holder of a large source or NOx process unit shall substantiate the emission rate according to the requirements set forth in this chapter.

A. Test Methods

The Facility Permit holders of major or large NOx sources shall source test each equipment using the following test methods and procedures referenced in the District Source Test Manual and 40 CFR Part 60, Appendix A:

  1. Determinations and measurements prior to sampling:
  2. a. Method 1.1 - sample points, stacks greater than 12 in. diameter

    b. Method 1.2 - sample points, stacks less than 12 in. diameter

    c. Method 2.1 - flow rate, stacks greater than 12 in. diameter

    d. Method 2.2 - flow rate, direct measurement

    e. Method 2.3 - flow rate, stacks less than 12 in. diameter

    f. Method 4.1 - moisture

    g. EPA Method 19 - calculated flow

    h. Direct in-stack instrumental flow measuring device

  3. Nitrogen oxides concentration:
  4. a. Method 100.1 - nitrogen oxides

    b. Method 7.1 - nitrogen oxides

  5. Oxygen concentration:
  6. a. Method 3.1 - molecular weight and excess air

    b. Method 100.1 - oxygen

  7. [Reserved for methodology to measure NOx emissions from process units.]

B. Number of tests

To establish an alternative emission factor, a minimum of three separate tests shall be run at each condition or throughput that the equipment is expected to operate. Each set of tests should cover the different operating conditions of the cycle in sequence. The cycle would then have to be repeated in the same manner for the next set of tests. To comply with the source testing requirements on Table 5-B, one test at each condition or throughput level shall be run.

C. Testing frequency

The operator of all NOx sources shall source test or tune-up their equipment according to the schedule in Table 5-B.

D. Sampling time and test procedures

  1. For boilers, heaters, I.C. engines, turbines - tests should be conducted at low, mid and high load. The same sequence of operating conditions should be followed for each separate test, with each test condition being monitored for a minimum of 15 minutes.
  2. Furnaces, kilns, dryers, calciners and ovens, operating continuously, have to be monitored for a minimum of 30 minutes, for each testing condition. For non-continuous operations (i.e., batch) samples must be taken for each phase of the operation (i.e. metal furnace charging, fluxing, melting, sweating and taping), for a minimum of 15 minutes or as long as the phase lasts. Data should be submitted on the time that it takes to complete each phase, and the emissions for the total cycle should be calculated based on the time required to complete each phase and the emissions measured during the corresponding phase.
  3. Incinerators and afterburners are to be monitored for a minimum of 15 minutes at each operating temperature and at each flow rate.
  4. Engine test cells are to be monitored over the total cycle if it lasts less than 30 minutes. Otherwise, monitor for 15 minutes at each engine test condition, or the total time if less than 15 minutes.
  5. For the equipment not included above, an individual test plan must be submitted for approval by the Executive Officer. This plan must include justification on how the measurements will quantify equipment emissions.

E. Guidelines for Testing to Establish Emission Rate for Large Sources

  1. For large sources the Facility Permit holder may elect to comply with an equipment-specific concentration limit, equipment-specific emission factor* or establish an average emission rate that accurately represents the emissions from the source over the range of operation under which the testing was done. The average emission rate shall be used to determine compliance with the facility's annual emission cap.
  2. The criterion for acceptability of the emission rate shall be a 95% confidence interval that the tested emission rates will be within 20% of the average emission rate. If a single average emission rate does not meet this criterion over the entire range of operation, the District will allow up to three emission rates to cover a "normal operating range", a "high operating rate and a "low operating range," respectively. The "normal operating range" shall cover operations for at least 80% of the entire operating time. The average emission rate at the entire range or at respective low, normal, and high operating range shall be determined according to:
  3. n

    ERc = (1/n) ERi (Eq.32)

    i=1    Note: unable to provide graphic, please contact the District for a copy.

    n

    SER = [ (ERi - ERc)2/(n - 1) ] 1/2(Eq.33)

    i=1 ............... =1   Note: unable to provide graphic, please contact the District for a copy.

    CC = t0.975 SER/(n-1)1/2 (Eq.34)

    |CC|

    C.I. (%) = ---- (Eq.35)

    ERc

    where:

    SER = The standard deviation (lb/mmBtu)

    i = Each testing.

    n = The number of testing data points to determine the average emission rate at entire range or low, normal, and high operating range, respectively

    * on and after January 1, 1995 (Cycle 1 facilities) and July 1, 1995 (Cycle 2 facilities), large sources shall not be based on emission factors.

    ER = The emission rate (lb/mmBtu) determined at each testing under each condition at the entire range or low, normal, and high operating range, respectively.

    CC = The confidence coefficient

    t0.975 = The t value (one-tailed) determined from Table 5-A

    ERc = The average emission rate (lb/mmBtu) determined over an entire range, or determined at low, normal, and high operating range, respectively.

    C.I. = The confidence interval with 95 % confidence level (%)

    Table 5-A - Table of the Factor t0.975 for Obtaining One-Tailed Confidence Interval for the Mean*

    n* t 0.975 n* t 0.975 n* t0.975
    6 2.571 9 2.306 12 2.201
    7 2.447 10 2.262 13 2.179
    8 2.365 11 2.228 14 2.160

    * The values in this table are already corrected for n-1 degrees of freedom. Use n equal to the number of individual values. 40 CFR Part 60, App B, Spec. 1.

  4. The Facility Permit holder shall identify the monitoring parameter(s) to establish the allowable operating range of process variables to be specified in the Facility Permit for the affected sources from Table 3-A in Chapter 3 for large sources. This list is not intended to be all inclusive and the Facility Permit holder may identify additional parameters not listed in Table 3-A. The test conditions are typically related to percent of load; however, the Facility Permit holder may propose any other monitoring parameters as deemed necessary and propose the operating range of these monitoring parameters to ensure that the average emission rate(s) and control efficiency continue to fall within the confidence criterion.
  5. The Facility Permit holder shall conduct source tests to verify the amended average emission rate according to the methods identified in Chapter 5, Subdivision A, or statistically equivalent methodologies. The testing shall be done in three phases.
  6. Phase I testing shall constitute "normal operating range" testing. From the "normal operating range" the average emission rate shall be calculated by using the tested emission rates. To determine a tested emission rate the Facility Permit holder shall test at four conditions that span the "normal operating range". At each condition an emission rate shall be tested three times, but not consecutively. If there are two (or more) monitoring parameters the Facility Permit holder shall identify the primary parameter (i.e. having the greatest effect on emission rate variation) and secondary monitoring parameter(s), (i.e. having the least effect on emission rate variation). The Facility Permit holder shall test at four conditions that span the "normal operating range" of the primary monitoring parameter and at each primary monitoring parameter condition, test at least two secondary monitoring parameter test conditions that span the "normal range" of the secondary operating monitoring parameter(s). Each test shall be conducted for a period of at least 30 minutes. On this basis, the average emission rate and the 95% confidence interval shall be calculated. If the 95% confidence interval meets the 20% criterion, the unit shall be allowed to use this rate for "normal operating range" upon the approval of the Executive Officer. If the criterion is not met the Facility Permit holder shall reduce the "normal operating range" and conduct any additional tests to provide the required data sets.
  7. Phase II testing shall constitute "high operating range" testing. The Facility Permit holder shall test at two conditions that span the "high operating range". At each condition an emission rate shall be tested three times, but not consecutively. Multiple operating conditions shall be addressed in a similar manner as described for Phase I testing. The values from these tests shall be added to the data from "normal operating range" testing and a test average emission rate and test 95% confidence interval shall be generated. If the 95% confidence interval for the test average emission rate meets the 20% criterion, then the test average emission rate shall become the allowed rate for both the "normal and high" operating ranges. If the criterion is not met, then a "high operating range" average emission rate and 95% confidence interval shall be calculated from the data. If the 20% criterion is met then the facility shall use this as a "high operating range" average emission factor. If the 20% criterion is not met then tests at two additional conditions within the high range shall be conducted and the 20% criterion again applied to the "high operating range" data set only. If the 20% criterion is still not met, then the "high operating range" shall be reduced.
  8. Phase III testing shall constitute "low operating range" testing. This Phase testing is carried out in the same manner as Phase II testing. If a single "normal/high operating range" emission rate has been determined from Phase II testing, then all of the data for "normal and high" operating range testing shall be included. If not, then only data from the "normal operating range" testing shall be included to create the "test average emission rate". The same acceptance criteria apply as specified under Phase II testing.
  9. If the emission rate in each phase complies with the Confidence Interval, the Facility Permit holder may use up to three average emission rates, each representing a different phase, provided that load duration for each specified phase emission rate is monitored and recorded at the facility.

__________________________________________________________________________

Example calculation:

In order to establish the average emission rate,the Facility Permit holder selected four operating conditions over the entire operating range. The results are as follows:

Data 1 Data 2 Data 3
Condition 1 0.15 0.20 0.50
Condition 2 0.30 0.24 1.00
Condition 3 0.40 0.20 0.50
Condition 4 0.50 0.40 0.30

The confidence interval calculations are as follows:

ERc = (0.15 + 0.20 + 0.50 + 0.30 + 0.24 + 1.00 + 0.40 + 0.20 + 0.50 + 0.50 + 0.40 + 0.30)/12 = 0.39083
SER = 0.219196 (according to Eq.32)
CC = (2.201) * 0.219196/(11)1/2 = 0.1454
C.I.(%) = 0.1454/0.39083 = 37.2 % > 20 %

The proposed data set failed the confidence interval test, therefore the Facility Permit holder shall select low, normal, or high range, whichever is representative of their typical operating range according to Paragraphs 6.A.5.c.d.e.f. or g.
__________________________________________________________________________

F. Guidelines for Testing to Establish Emission Rate for process units

  1. For process units the Facility Permit holder shall comply with an average emission rate that accurately represents the emissions from the source or the unit over the range of operation under which the testing was done. The average emission rate shall be used to determine compliance with the facility's annual emission cap.
  2. The average emission rate shall be calculated by using tested emission rates from a "normal operating range". The "normal operating range" shall cover operations for at least 80% of the entire operating time. The criterion for acceptability of these tested emission rates shall be an 95% confidence interval that the tested emission rates will be within 25% of the average emission rate. The average emission rate over the "normal operating range shall be determined according to:
  3. n

    ERc = (1/n) ERi (Eq.36)

    i=1      Note: unable to provide graphic, please contact the District for a copy.

    n

    SER = [ (ERi - ERc)2/(n - 1) ] 1/2 (Eq.37)

    i=1 =1    Note: unable to provide graphic, please contact the District for a copy.

    CC = t0.975 SER/(n - 1)1/2 (Eq.38)

    |Cc|

    C.I. (%) = ------ (Eq.39)

    ERc

    where:

    SER = The standard deviation (lb/mmBtu).

    i = Each testing.

    n = The number of testing data points to determine the average emission rate at the "normal operating range".

    ER = The emission rate (lb/mmBtu) determined at each testing under each condition at the "normal operating range".

    CC = The confidence coefficient.

    t0.975 = The t value (one-tailed) determined from Table 5-A.

    ERc = The average emission rate (lb/mmBtu) determined over the entire "normal operating range".

    C.I. = The confidence interval with 95 % confidence level (%).

  4. The Facility Permit holder shall identify the source test parameter(s) to establish the boundaries of operating conditions for the affected sources from Table 4-A in Chapter 4 for process units. This list is not intended to be all inclusive and the Facility Permit holder may identify additional source test parameters not listed in Table 4-A. The test conditions are typically related to percent of load; however, the Facility Permit holder may propose any other source test parameters as deemed necessary and propose the operating range of these source test parameters to ensure that the average emission rate(s) continue to fall within the confidence criterion.
  5. The Facility Permit holder shall conduct source tests to verify the amended average emission rate according to the methods identified in Chapter 5, Subdivision A, or statistically equivalent methodologies. The testing shall be done over the "normal operating range".
  6. From the "normal operating range" the average emission rate shall be calculated by using the tested emission rates. To determine a tested emission rate, the Facility Permit holder shall test at four conditions that span the "normal operating range". At each condition an emission rate shall be tested three times, but not consecutively. If there are two (or more) source test parameters the Facility Permit holder shall identify the primary source test parameter (i.e. having the greatest effect on emission rate variation) and secondary source test parameter(s), (i.e. having the least effect on emission rate variation). The Facility Permit holder shall test at four conditions that span the "normal operating range" of the primary source test parameter and at each primary source test parameter condition, test at least two secondary source test parameter test conditions that span the "normal range" of the secondary operating source test parameter(s). Each test shall be conducted for a period of at least 30 minutes. On this basis, the average emission rate and the 95% confidence interval shall be calculated. If the 95% confidence interval meets the 25% criterion, the unit shall be allowed to use this rate for "normal operating range" upon the approval of the Executive Officer. If the criterion is not met the Facility Permit holder shall reduce the "normal operating range" and conduct any additional tests to provide the required data sets.

G. Equipment tune-up procedures

Follow the "Equipment Tuning Procedure" as specified in Attachment D.

TABLE 5-B

SOURCE TESTING AND TUNE-UP FREQUENCY (1)

EQUIPMENT TEST PER Q.A.
PROGRAM
TEST EVERY
THREE YEARS
TUNE-UP
ONCE A YEAR
TUNE-UP
TWICE A YEAR
BOILERS AND HEATERS
Process Units X
Large Sources X X
Major Sources X
I.C.E.
Process Units X2
Large Sources X X2
Major Sources X
KILNS/CALCINERS
<10 TONS/HR X
>10 TONS/HR X
TAIL GAS UNITS X
FCCU X
PORTABLE EQUIPMENT X
ALL OTHER EQUIPMENT3 X
  1. Does not include Rule 219 Exempt Equipment
  2. To Manufacturer's Specification
  3. Does not include Equipment where combustion gases produce reducing and oxidizing conditions as part of the process (for example, metal melting furnaces which provide various alloys


SCAQMD RULE 2012-5 LRG. SOURCES & PROC. UNITS-SOURCE TESTING
LAST REVISED 11/11/11



         C H A P T E R   5



         L A R G E   S O U R C E S   A N D   P R O C E S S

         U N I T S  - S O U R C E   T E S T I N G


                                  TABLE OF CONTENTS


             CHAPTER 5 - LARGE SOURCES AND PROCESS UNITS - SOURCE TESTING

             A. Test Methods...........................................87
             B. Number of Tests........................................88
             C. Testing Frequency......................................88
             D. Sampling Time and Test Procedures......................88
             E. Guidelines for Testing to Establish Emission Rate for
                Large Sources..........................................89
             F. Guidelines for Testing to Establish Emission Rate for
                Process Units..........................................92
             G. Equipment Tune-up Procedures...........................94




             Rule 2012
             October 15, 1993
PROTOCOL FOR RULE 2012


             This chapter contains the source testing frequency
             requirements for large sources.  Also included are the
             source testing methods and procedures necessary for a
             Facility Permit holder of a large NOx source or process unit
             to establish an alternative emission factor.  The Facility
             Permit holder of a large source or process unit may use a
             statistically equivalent methodology upon approval by the
             Executive Officer.  Statistically equivalent methodologies
             shall be submitted to the Federal Environmental Protection
             Agency as an amendment to the State Implementation Plan
             (SIP).
             Large sources and process units differ in the methodology
             used to evaluate source test data and determine the validity
             of the results.
             Every large NOx source shall be source tested no later than
             December 31, 1996 for Cycle 1 facilities and June 30, 1997
             for Cycle 2 facilities, and every three years thereafter.
             In lieu of submitting the first source test report, the
             Facility Permit holder may submit the results of a source
             test not more than three years old which meets the
             requirements of this Chapter.  The Facility Permit holder of
             a large source or NOx process unit shall substantiate the
             emission rate according to the requirements set forth in
             this chapter.
        A.   Test Methods
             The Facility Permit holders of major or large NOx
             sources shall source test each equipment using the following
             test methods and procedures referenced in the District
             Source Test Manual and 40 CFR Part 60, Appendix A:
             1.   Determinations and measurements prior to sampling:
                  a.   Method 1.1 - sample points, stacks greater than 12 in.
                       diameter
                  b.   Method 1.2 - sample points, stacks less than 12 in.
                       diameter
                  c.   Method 2.1 - flow rate, stacks greater than 12 in.
                       diameter
                  d.   Method 2.2 - flow rate, direct measurement
                  e.   Method 2.3 - flow rate, stacks less than 12 in.
                       diameter
                  f.   Method 4.1 - moisture
                  g.   EPA Method 19 - calculated flow
                  h.   Direct    in-stack   instrumental   flow
                       measuring device

             2.   Nitrogen oxides concentration:
                  a.   Method 100.1 - nitrogen oxides
                  b.   Method 7.1 - nitrogen oxides

             3.   Oxygen concentration:
                  a.   Method 3.1 - molecular weight and excess air
                  b.   Method 100.1 - oxygen

             4    [Reserved for methodology to measure NOx emissions from
                  process units.]
        B.   Number of tests
                  To establish an alternative emission factor, a minimum
             of three separate tests shall be run at each condition or
             throughput that the equipment is expected to operate.  Each
             set of tests should cover the different operating conditions
             of the cycle in sequence.  The cycle would then have to be
             repeated in the same manner for the next set of tests.  To
             comply with the source testing requirements on Table 5-B,
             one test at each condition or throughput level shall be run.
        C.   Testing frequency
                  The operator of all NOx sources shall source test or
             tune-up their equipment according to the schedule in Table
             5-B.
        D.   Sampling time and test procedures
             1.   For boilers, heaters, I.C. engines, turbines - tests
                  should be conducted at low, mid and high load.  The same
                  sequence of operating conditions should be followed for each
                  separate test, with each test condition being monitored for
                  a minimum of 15 minutes.
             2.   Furnaces, kilns, dryers, calciners and ovens, operating
                  continuously, have to be monitored for a minimum of 30
                  minutes, for each testing condition.  For non-continuous
                  operations (i.e., batch) samples must be taken for each
                  phase of the operation (i.e. metal furnace charging,
                  fluxing, melting, sweating and taping), for a minimum of 15
                  minutes or as long as the phase lasts.  Data should be
                  submitted on the time that it takes to complete each phase,
                  and the emissions for the total cycle should be calculated
                  based on the time required to complete each phase and the
                  emissions measured during the corresponding phase.
             3.   Incinerators and afterburners are to be monitored for a
                  minimum of 15 minutes at each operating temperature and at
                  each flow rate.
             4.   Engine test cells are to be monitored over the total
                  cycle if it lasts less than 30 minutes.  Otherwise, monitor
                  for 15 minutes at each engine test condition, or the total
                   time if less than 15 minutes.
             5.   For the equipment not included above, an individual
                  test plan must be submitted for approval by the Executive
                  Officer.  This plan must include justification on how the
                  measurements will quantify equipment emissions.
        E.   Guidelines for Testing  to Establish Emission Rate
             for Large Sources

             1.   For large sources the  Facility Permit holder
                  may  elect  to  comply  with   an  equipment-
                  specific   concentration   limit,  equipment-
                  specific  emission  factor* or  establish  an
                  average   emission   rate   that   accurately
                  represents the emissions from the source over
                  the  range  of  operation   under  which  the
                  testing was done.  The average  emission rate
                  shall  be  used to determine compliance  with
                  the facility's annual emission cap.

             2.   The criterion for acceptability of the emission rate
                  shall be a 95% confidence interval that the tested emission
                  rates will be within 20% of the average emission rate.  If a
                  single average emission rate does not meet this criterion
                  over the entire range of operation, the  District will allow
                  up to three emission rates to cover a "normal operating
                  range", a "high operating rate and a "low operating range,"
                  respectively.  The "normal operating range" shall cover
                  operations for at least 80% of the entire operating time.
                  The average emission rate at the entire range or at
                  respective low, normal, and high operating range shall be
                  determined according to:
                                         n
                          ERc  =    (1/n)ä ERi                   (Eq.32)
                                        i=1

                                         n
                          SER  =       [ ä (ERi -  ERc)2/(n - 1) ] 1/2
                                        i=1   =1
                                                                 (Eq.33)

                            CC   =    t0.975 SER/(n-1)1/2        (Eq.34)

                                             ³CC³
                            C.I. (%)  =-----------               (Eq.35)
                                              ERc

                  where:
                  SER  =    The standard deviation (lb/mmBtu)
                  i    =    Each testing.
                  n    =    The  number  of testing data points
                             to determine the  average  emission
                            rate   at   entire  range  or  low,
                            normal, and high  operating  range,
                            respectively



             * on and after January 1, 1995 (Cycle 1 facilities) and July
             1,  1995  (Cycle  2  facilities), large sources shall not be
             based on emission factors.
                            ER   =    The    emission   rate   (lb/mmBtu)
                                      determined  at  each  testing under
                                      each condition at the entire  range
                                      or  low, normal, and high operating
                                      range, respectively.

                            CC   =    The confidence coefficient

                            t0.975=   The t value (one-tailed) determined
                                      from Table 5-A

                            ERc  =    The    average     emission    rate
                                      (lb/mmBtu)   determined   over   an
                                      entire range, or determined at low,
                                      normal, and high  operating  range,
                                      respectively.

                            C.I. =    The  confidence interval with 95  %
                                      confidence level (%)


             Table 5-A - Table of the Factor t0.975 for Obtaining One-
             Tailed Confidence Interval for the Mean*

                  n*   |   t0.975|    n*   |   t0.975|    n*   |  t0.975
                  6    |  2.571  |   9     |  2.306  |   12    |  2.201
                  7    |  2.447  |   10    |  2.262  |   13    |  2.179
                  8    |  2.365  |   11    |  2.228  |   14    |  2.160

                     *The values in this table  are already corrected for
                  n-1 degrees of freedom.  Use n  equal  to the number of
                  individual values.  40 CFR Part 60, App B, Spec. 1.

             3.   The Facility Permit holder shall identify the
              monitoring parameter(s) to establish the allowable operating
              range of process variables to be specified in the Facility
              Permit for the affected sources from Table 3-A in Chapter 3
              for large sources.  This list is not intended to be all
              inclusive and the Facility Permit holder may identify
              additional parameters not listed in Table 3-A.  The test
              conditions are typically related to percent of load;
              however, the Facility Permit holder may propose any other
              monitoring parameters as deemed necessary and propose the
              operating range of these monitoring parameters to ensure
              that the average emission rate(s) and control efficiency
              continue to fall within the confidence criterion.

             4.   The Facility Permit holder shall conduct source tests
              to verify the amended average emission rate according to the
              methods identified in Chapter 5, Subdivision A, or
              statistically equivalent methodologies.  The testing shall
              be done in three phases.
             5.   Phase I testing shall constitute "normal operating
              range" testing.  From the "normal operating range" the
              average emission rate shall be calculated by using the
              tested emission rates.  To determine a tested emission rate
              the Facility Permit holder shall test at four conditions
              that span the "normal operating range".  At each condition
              an emission rate shall be tested three times, but not
              consecutively.  If there are two (or more) monitoring
              parameters the Facility Permit holder shall identify the
              primary parameter (i.e. having the greatest effect on
              emission rate variation) and secondary monitoring
              parameter(s), (i.e. having the least effect on emission rate
              variation).  The Facility Permit holder shall test at four
              conditions that span the "normal operating range" of the
              primary monitoring parameter and at each primary monitoring
              parameter condition, test at least two secondary monitoring
              parameter test conditions that span the "normal range" of
              the secondary operating monitoring parameter(s).  Each test
              shall be conducted for a period of at least 30 minutes.  On
              this basis, the average emission rate and the 95% confidence
              interval shall be calculated.  If the 95% confidence
              interval meets the 20% criterion, the unit shall be allowed
              to use this rate for "normal operating range" upon the
              approval of the Executive Officer.  If the criterion is not
              met the Facility Permit holder shall reduce the "normal
              operating range" and conduct any additional tests to provide
              the required data sets.
             6.   Phase II testing shall constitute "high operating
              range" testing.  The Facility Permit holder shall test at
              two conditions that span the "high operating range".  At
              each condition an emission rate shall be tested three times,
              but not consecutively.  Multiple operating conditions shall
              be addressed in a similar manner as described for Phase I
              testing.  The values from these tests shall be added to the
              data from "normal operating range" testing and a test
              average emission rate and test 95% confidence interval shall
              be generated.  If the 95% confidence interval for the test
              average emission rate meets the 20% criterion, then the test
              average emission rate shall become the allowed rate for both
              the "normal and high" operating ranges.  If the criterion is
              not met, then a "high operating range" average emission rate
              and 95% confidence interval shall be calculated from the
              data.  If the 20% criterion is met then the facility shall
              use this as a "high operating range" average emission
              factor.  If the 20% criterion is not met then tests at two
              additional conditions within the high range shall be
              conducted and the 20% criterion again applied to the "high
              operating range" data set only.  If the 20% criterion is
              still not met, then the "high operating range" shall be
              reduced.
             7.   Phase III testing shall constitute "low operating
              range" testing.  This Phase testing is carried out in the
              same manner as Phase II testing.  If a single "normal/high
              operating range" emission rate has been determined from
              Phase II testing, then all of the data for "normal and high"
              operating range testing shall be included.  If not, then
              only data from the "normal operating range" testing shall be
              included to create the "test average emission rate".  The
              same acceptance criteria apply as specified under Phase II
              testing.
             8.   If the emission rate in each phase complies with the
              Confidence Interval, the Facility Permit holder may use up
              to three average emission rates, each representing a
              different phase, provided that load duration for each
              specified phase emission rate is monitored and recorded at
              the facility.
              Example calculation:

              In order to establish the average emission rate,the Facility
              Permit holder selected four operating conditions over the
              entire operating range.  The results are as follows:

                            Data 1         Data 2         Data 3
               Condition 1    0.15           0.20            0.50
               Condition 2    0.30           0.24            1.00
               Condition 3    0.40           0.20            0.50
               Condition 4    0.50           0.40            0.30

             The confidence interval calculations are as follows:

               ERc = (0.15 + 0.20 + 0.50 + 0.30 + 0.24 + 1.00 + 0.40 +
                      0.20 + 0.50 + 0.50+ 0.40+ 0.30)/12 = 0.39083
               SER = 0.219196 (according to Eq.32)
               CC  = (2.201) * 0.219196/(11)1/2 = 0.1454
               C.I.(%) = 0.1454/0.39083 = 37.2 % > 20 %

             The proposed data set failed the confidence interval test,
             therefore the Facility Permit holder shall select low,
             normal, or high  range, whichever is representative of their
             typical operating range according to Paragraphs
             6.A.5.c.d.e.f. or g.


        F.   Guidelines for Testing to Establish Emission Rate for
             process units
             1.   For process units the Facility Permit holder shall
                  comply with an average emission rate that accurately
                  represents the emissions from the source or the unit over
                  the range of operation under which the testing was done.
                  The average emission rate shall be used to determine
                  compliance with the facility's annual emission cap.
             2.   The average emission rate shall be calculated by using
                  tested emission rates from a "normal operating range".  The
                  "normal operating range" shall cover operations for at least
                  80% of the entire operating time.  The criterion for
                  acceptability of these tested emission rates shall be an 95%
                  confidence interval that the tested emission rates will be
                  within 25% of the average emission rate.  The average
                  emission rate over the "normal operating range shall be
                  determined according to:
                                        n
                         ERc  =    (1/n)ä ERi                  (Eq.36)
                                       i=1

                                        n
                         SER  =       [ ä (ERi -  ERc)2/(n - 1) ] 1/2
                                       i=1   =1
                                                                  (Eq.37)

                            CC   =    t0.975 SER/(n - 1)1/2       (Eq.38)

                                             ³CC³
                            C.I. (%)  =-----------                (Eq.39)
                                              ERc

                  where:
                  SER  =    The standard deviation (lb/mmBtu).
                  i    =    Each testing.
                  n    =    The number of testing  data  points
                            to  determine  the average emission
                             rate   at  the  "normal   operating
                             range".

                  ER   =    The   emission    rate   (lb/mmBtu)
                            determined  at each  testing  under
                            each  condition   at   the  "normal
                            operating range".

                  CC   =    The confidence coefficient.

                  t0.975=   The t value (one-tailed) determined
                            from Table 5-A.

                  ERc  =    The     average    emission    rate
                             (lb/mmBtu)   determined   over  the
                            entire "normal operating range".

                  C.I. =    The confidence interval with  95  %
                             confidence level (%).


             3.   The Facility Permit holder shall identify the source
                  test parameter(s) to establish the boundaries of operating
                  conditions for the affected sources from Table 4-A in
                  Chapter 4 for process units.  This list is not intended to
                  be all inclusive and the Facility Permit holder may identify
                  additional source test parameters not listed in Table 4-A.
                  The test conditions are typically related to percent of
                  load; however, the Facility Permit holder may propose any
                  other source test parameters as deemed necessary and propose
                  the operating range of these source test parameters to
                  ensure that the average emission rate(s) continue to fall
                  within the confidence criterion.

             4.   The Facility Permit holder shall conduct source tests
                  to verify the amended average emission rate according to the
                  methods identified in Chapter 5, Subdivision A, or
                  statistically equivalent methodologies.  The testing shall
                  be done over the "normal operating range".

             5.   From the "normal operating range" the average emission
                  rate shall be calculated by using the tested emission rates.
                  To determine a tested emission rate, the Facility Permit
                  holder shall test at four conditions that span the "normal
                  operating range".  At each condition an emission rate shall
                  be tested three times, but not consecutively.  If there are
                  two (or more) source test parameters the Facility Permit
                  holder shall identify the primary source test parameter
                  (i.e. having the greatest effect on emission rate variation)
                  and secondary source test parameter(s), (i.e. having the
                  least effect on emission rate variation).  The Facility
                  Permit holder shall test at four conditions that span the
                  "normal operating range" of the primary source test
                  parameter and at each primary source test parameter
                  condition, test at least two secondary source test parameter
                  test conditions that span the "normal range" of the
                  secondary operating source test parameter(s).  Each test
                  shall be conducted for a period of at least 30 minutes.  On
                  this basis, the average emission rate and the 95% confidence
                  interval shall be calculated.  If the 95% confidence
                  interval meets the 25% criterion, the unit shall be allowed
                  to use this rate for "normal operating range" upon the
                  approval of the Executive Officer.  If the criterion is not
                  met the Facility Permit holder shall reduce the "normal
                  operating range" and conduct any additional tests to provide
                  the required data sets.
        G.   Equipment tune-up procedures
             Follow the "Equipment Tuning Procedure" as specified in
             Attachment D.





                                      TABLE 5-B
                       SOURCE TESTING AND TUNE-UP FREQUENCY (1)

        |TEST PER Q.A.      |     TEST EVERY     |      TUNE-UP
             |
             TUNE-UP
                        EQUIPMENT         | PROGRAM    | THREE YEARS |
             ONCE A YEAR
             |
             TWICE A YEAR
             BOILERS AND HEATERS
             Process Units                |            |             |
             |
             X
             Large Sources                |            |             |
             X
             |
             X
             Major Sources                |            |    X        |
             |

             I.C.E.
             Process Units                |            |             |
             |
             X2
             X
             Large Sources                |            |    X        |
             |
             X2
             Major Sources                |            |      X      |
             |

             KILNS/CALCINERS
             <10 TONS/HR                  |            |             |
             X
             |
             >10 TONS/HR                  |            |    X
             TAIL GAS UNITS               |            |    X
             FCCU                         |            |    X
             PORTABLE EQUIPMENT           |            |             |
             |
             X
             ALL OTHER EQUIPMENT3         |            |             |
             |
             X

             1 Does not include Rule 219 Exempt Equipment
             2 To Manufacturer's Specification
             3Does not include Equipment where combustion gases produce
               reducing and oxidizing conditions as part of the process
               (for example, metal melting furnaces which provide various
               alloys