combustion chamber temperature
                                                                                for each hour of the 3-hour peak
                                                                                emissions period, as defined in
                                                                                item 9.d. or 10.c. of this
                                                                                table, whichever applies; and
                                                                               (4) Calculate the minimum
                                                                                allowable thermal oxidizer
                                                                                combustion chamber operating
                                                                                temperature as the average of
                                                                                the hourly combustion chamber
                                                                                temperatures for the 3-hour peak
                                                                                emissions period, minus 14
                                                                                [deg]C (25 [deg]F).
12. Each batch process unit that  a. Establish the    i. Continuous recording  (1) At least every 15 minutes,
 is equipped with a catalytic      operating limit     of the output of the     measure and record the
 oxidizer.                         for the minimum     temperature              temperature at the inlet of the
                                   temperature at      measurement device.      catalyst bed; and
                                   the inlet of the                            (2) Provide at least one catalyst
                                   catalyst bed.                                bed inlet temperature
                                                                                measurement during at least
                                                                                three 15-minute periods per hour
                                                                                of testing; and
                                                                               (3) Calculate the hourly average
                                                                                catalyst bed inlet temperature
                                                                                for each hour of the 3-hour peak
                                                                                emissions period, as defined in
                                                                                item 9.d. or 10.c. of this
                                                                                table, whichever applies; and
                                                                               (4) Calculate the minimum
                                                                                allowable catalytic oxidizer
                                                                                catalyst bed inlet temperature
                                                                                as the average of the hourly
                                                                                catalyst bed inlet temperatures
                                                                                for the 3-hour peak emissions
                                                                                period, minus 14 [deg]C (25
                                                                                [deg]F).

13. Each batch process unit that  a. During each      .......................  (1) The oxidizer can be shut off
 is equipped with a thermal or     test run,                                    or the oxidizer operating
 catalytic oxidizer.               maintain the                                 temperature can be reduced if
                                   applicable                                   you do not use an emission
                                   operating                                    profile to limit testing to the
                                   temperature of                               3-hour peak emissions period, as
                                   the oxidizer                                 specified in item 8.a.i.4. of
                                   until emission                               this table; and
                                   levels allow the                            (2) At least 3 hours have passed
                                   oxidizer to be                               since the affected process unit
                                   shut off or the                              reached maximum temperature; and
                                   operating                                   (3) The applicable emission limit
                                   temperature of                               specified in item 6.a. or 6.b.
                                   the oxidizer to                              of Table 1 to this subpart was
                                   be reduced.                                  met during each of the previous
                                                                                three 1-hour periods; and
                                                                               (4) The hourly average THC mass
                                                                                emissions rate did not increase
                                                                                during the 3-hour period since
                                                                                maximum process temperature was
                                                                                reached; and
                                                                               (5) The applicable emission limit
                                                                                specified in item 6.a. and 6.b.
                                                                                of Table 1 to this subpart was
                                                                                met during each of the four 15-
                                                                                minute periods immediately
                                                                                following the oxidizer
                                                                                temperature reduction; and
                                                                               (6) If the applicable emission
                                                                                limit specified in item 6.a. or
                                                                                6.b. of Table 1 to this subpart
                                                                                was not met during any of the
                                                                                four 15-minute periods
                                                                                immediately following the
                                                                                oxidizer temperature reduction,
                                                                                you must return the oxidizer to
                                                                                its normal operating temperature
                                                                                as soon as possible and maintain
                                                                                that temperature for at least 1
                                                                                hour; and
                                                                               (7) Continue the test run until
                                                                                the applicable emission limit
                                                                                specified in items 6.a. and 6.b.
                                                                                of Table 1 to this subpart is
                                                                                met for at least four
                                                                                consecutive 15-minute periods
                                                                                that immediately follow the
                                                                                temperature reduction; and
                                                                               (8) Calculate the hourly average
                                                                                oxidizer operating temperature
                                                                                for each hour of the performance
                                                                                test since the affected process
                                                                                unit reached maximum
                                                                                temperature.
14. Each new continuous kiln      a. Measure          i. Method 26A of 40 CFR  (1) Conduct the test while the
 that is used to process clay      emissions of HF     part 60, appendix A-8;   kiln is operating at the maximum
 refractory products.              and HCl.            or.                      production level; and
                                                      ii. Method 26 of 40 CFR  (2) You may use EPA Method 26 of
                                                       part 60, appendix A-8;   40 CFR part 60, appendix A-8,
                                                       or.                      only if no acid PM (e.g., HF or
                                                      iii. Method 320 of 40     HCl dissolved in water droplets
                                                       CFR part 63, appendix    emitted by sources controlled by
                                                       A.                       a wet scrubber) is present; and
                                                                               (3) If you use EPA Method 320 of
                                                                                40 CFR part 63, appendix A, you
                                                                                must follow the analyte spiking
                                                                                procedures of Section 13 of EPA
                                                                                Method 320 unless you can
                                                                                demonstrate that the complete
                                                                                spiking procedure has been
                                                                                conducted at a similar source.
                                                                                ASTM D6348-12e1 \a\ may be used
                                                                                as an alternative to EPA Method
                                                                                320 if the test plan preparation
                                                                                and implementation in Annexes A1-
                                                                                A8 are mandatory and the %R in
                                                                                Annex A5 is determined for each
                                                                                target analyte and is equal or
                                                                                greater than 70 percent and less
                                                                                than or equal to 130 percent;
                                                                                and
                                                                               (4) Repeat the performance test
                                                                                if the affected source is
                                                                                controlled with a DLA and you
                                                                                change the source of the
                                                                                limestone used in the DLA.
                                  b. Perform a        The appropriate test     Each test run must be at least 1
                                   minimum of 3 test   methods specified in     hour in duration.
                                   runs.               items 1 and 14.a. of
                                                       this table.
15. Each new continuous kiln      a. Record the       i. Production data; and  (1) Record the production rate
 that is subject to the            uncalcined clay    ii. Product formulation   (tons per hour of fired
 production-based HF and HCl       processing rate.    data that specify the    product); and
 emission limits specified in                          mass fraction of        (2) Calculate and record the
 items 10.a. and 10.b. of Table                        uncalcined clay in the   average rate at which uncalcined
 1 to this subpart.                                    products that are        clay is processed (tons per
                                                       processed during the     hour) for each test run; and
                                                       performance test.       (3) Calculate and record the 3-
                                                                                run average uncalcined clay
                                                                                processing rate as the average
                                                                                of the average uncalcined clay
                                                                                processing rates for each test
                                                                                run.
                                  b. Determine the    i. Method 26A of 40 CFR  Calculate the HF mass emissions
                                   HF mass emissions   part 60, appendix A-8;   rate for each test.
                                   rate at the         or.                     ASTM D6348-12e1 \a\ may be used
                                   outlet of the      ii. Method 26 of 40 CFR   as an alternative to EPA Method
                                   control device or   part 60, appendix A-8;   320 if the test plan preparation
                                   in the stack.       or.                      and implementation in Annexes A1-
                                                      iii. Method 320 of 40     A8 are mandatory and the %R in
                                                       CFR part 63, appendix    Annex A5 is determined for each
                                                       A.                       target analyte and is equal or
                                                                                greater than 70 percent and less
                                                                                than or equal to 130 percent.

                                  c. Determine the 3- i. The HF mass           (1) Calculate the hourly
                                   hour block          emissions rate for       production-based HF emissions
                                   average             each test run; and.      rate for each test run using
                                   production-based   ii. The average           Equation 3 of Sec.
                                   HF emissions rate.  uncalcined clay          63.9800(g)(3); and
                                                       processing rate.        (2) Calculate the 3-hour block
                                                                                average production-based HF
                                                                                emissions rate as the average of
                                                                                the hourly production-based HF
                                                                                emissions rates for each test
                                                                                run.
                                  d. Determine the    i. Method 26A of 40 CFR  Calculate the HCl mass emissions
                                   HCl mass            part 60, appendix A-8;   rate for each test run.
                                   emissions rate at   or.                     ASTM D6348-12e1 \a\ may be used
                                   the outlet of the  ii. Method 26 of 40 CFR   as an alternative to EPA Method
                                   control device or   part 60, appendix A-8;   320 if the test plan preparation
                                   in the stack.       or.                      and implementation in Annexes A1-
                                                      iii. Method 320 of 40     A8 are mandatory and the %R in
                                                       CFR part 63, appendix    Annex A5 is determined for each
                                                       A.                       target analyte and is equal or
                                                                                greater than 70 percent and less
                                                                                than or equal to 130 percent.
                                  e. Determine the 3- i. The HCl mass          (1) Calculate the hourly
                                   hour block          emissions rate for       production-based HCl emissions
                                   average             each test run; and.      rate for each test run using
                                   production-based   ii. The average           Equation 3 of Sec.
                                   HCl emissions       uncalcined clay          63.9800(g)(3); and
                                   rate.               processing rate.        (2) Calculate the 3-hour block
                                                                                average production-based HCl
                                                                                emissions rate as the average of
                                                                                the production-based HCl
                                                                                emissions rates for each test
                                                                                run.
16. Each new continuous kiln      a. Measure the HF   i. Method 26A of 40 CFR  Calculate the HF mass emissions
 that is subject to the HF and     mass emissions      part 60, appendix A-8;   rates at the control device
 HCl percentage reduction limits   rates at the        or.                      inlet and outlet for each test
 specified in items 10.a. and      inlet and outlet   ii. Method 26 of 40 CFR   run.
 10.b. of Table 1 to this          of the control      part 60, appendix A-8;  ASTM D6348-12e1 \a\ may be used
 subpart.                          device.             or.                      as an alternative to EPA Method
                                                      iii. Method 320 of 40     320 if the test plan preparation
                                                       CFR part 63, appendix    and implementation in Annexes A1-
                                                       A.                       A8 are mandatory and the %R in
                                                                                Annex A5 is determined for each
                                                                                target analyte and is equal or
                                                                                greater than 70 percent and less
                                                                                than or equal to 130 percent.
                                  b. Determine the 3- i. The HF mass           (1) Calculate the hourly HF
                                   hour block          emissions rates at the   percentage reduction using
                                   average HF          inlet and outlet of      Equation 2 of Sec.
                                   percentage          the control device for   63.9800(g)(2); and
                                   reduction.          each test run.          (2) Calculate the 3-hour block
                                                                                average HF percentage reduction
                                                                                as the average of the HF
                                                                                percentage reductions for each
                                                                                test run.
                                  c. Measure the HCl  i. Method 26A of 40 CFR  Calculate the HCl mass emissions
                                   mass emissions      part 60, appendix A-8;   rates at the control device
                                   rates at the        or.                      inlet and outlet for each test
                                   inlet and outlet   ii. Method 26 of 40 CFR   run.
                                   of the control      part 60, appendix A-8;  ASTM D6348-12e1 \a\ may be used
                                   device.             or.                      as an alternative to EPA Method
                                                      iii. Method 320 of 40     320 if the test plan preparation
                                                       CFR part 63, appendix    and implementation in Annexes A1-
                                                       A.                       A8 are mandatory and the %R in
                                                                                Annex A5 is determined for each
                                                                                target analyte and is equal or
                                                                                greater than 70 percent and less
                                                                                than or equal to 130 percent.
                                  d. Determine the 3- i. The HCl mass          (1) Calculate the hourly HCl
                                   hour block          emissions rates at the   percentage reduction using
                                   average HCl         inlet and outlet of      Equation 2 of Sec.
                                   percentage          the control device for   63.9800(g)(2); and
                                   reduction..         each test run.          (2) Calculate the 3-hour block
                                                                                average HCl percentage reduction
                                                                                as the average of HCl percentage
                                                                                reductions for each test run.
17. Each new batch process kiln   a. Measure          i. Method 26A of 40 CFR  (1) Conduct the test while the
 that is used to process clay      emissions of HF     part 60, appendix A-8;   kiln is operating at the maximum
 refractory products.              and HCl at the      or.                      production level; and
                                   inlet and outlet   ii. Method 26 of 40 CFR  (2) You may use EPA Method 26 of
                                   of the control      part 60, appendix A-8;   40 CFR part 60, appendix A, only
                                   device.             or.                      if no acid PM (e.g., HF or HCl
                                                      iii. Method 320 of 40     dissolved in water droplets
                                                       CFR part 63, appendix    emitted by sources controlled by
                                                       A.                       a wet scrubber) is present; and
                                                                               (3) If you use EPA Method 320 of
                                                                                40 CFR part 63, you must follow
                                                                                the analyte spiking procedures
                                                                                of Section 13 of EPA Method 320
                                                                                unless you can demonstrate that
                                                                                the complete spiking procedure
                                                                                has been conducted at a similar
                                                                                source
                                                                               ASTM D6348-12e1 \a\ may be used
                                                                                as an alternative to EPA Method
                                                                                320 if the test plan preparation
                                                                                and implementation in Annexes A1-
                                                                                A8 are mandatory and the %R in
                                                                                Annex A5 is determined for each
                                                                                target analyte and is equal or
                                                                                greater than 70 percent and less
                                                                                than or equal to 130 percent.;
                                                                                and
                                                                               (4) Repeat the performance test
                                                                                if the affected source is
                                                                                controlled with a DLA and you
                                                                                change the source of the
                                                                                limestone used in the DLA.
                                  b. Perform a        i. The appropriate test  (1) Each test run must be
                                   minimum of 2 test   methods specified in     conducted over a separate batch
                                   runs.               items 1 and 17.a. of     cycle unless you satisfy the
                                                       this table.              requirements of Sec.
                                                                                63.9800(f)(3) and (4); and
                                                                               (2) Each test run must consist of
                                                                                a series of 1-hour runs at the
                                                                                inlet and outlet of the control
                                                                                device, beginning with the start
                                                                                of a batch cycle, except as
                                                                                specified in item 17.b.i.4. of
                                                                                this table; and

                                                                               (3) Each test run must continue
                                                                                until the end of the batch
                                                                                cycle, except as specified in
                                                                                item 17.b.i.4. of this table;
                                                                                and
                                                                               (4) If you develop an emissions
                                                                                profile, as described in Sec.
                                                                                63.9802(b), you can limit each
                                                                                test run to the 3-hour peak HF
                                                                                emissions period.
                                  c. Determine the    i. The appropriate test  Determine the hourly mass HF and
                                   hourly HF and HCl   methods specified in     HCl emissions rates at the inlet
                                   mass emissions      items 1 and 17.a. of     and outlet of the control device
                                   rates at the        this table.              for each hour of each test run.
                                   inlet and outlet
                                   of the control
                                   device.
                                  d. Determine the 3- The hourly HF mass       Select the period of 3
                                   hour peak HF        emissions rates at the   consecutive hours over which the
                                   emissions period.   inlet of the control     sum of the hourly HF mass
                                                       device.                  emissions rates at the control
                                                                                device inlet is greater than the
                                                                                sum of the hourly HF mass
                                                                                emissions rates at the control
                                                                                device inlet for any other
                                                                                period of 3 consecutive hours
                                                                                during the test run.
                                  e. Determine the 2- i. The hourly average    (1) Calculate the HF percentage
                                   run block average   HF emissions rates at    reduction for each hour of the 3-
                                   HF percentage       the inlet and outlet     hour peak HF emissions period
                                   reduction for the   of the control device.   using Equation 2 of Sec.
                                   emissions test.                              63.9800(g)(2); and
                                                                               (2) Calculate the average HF
                                                                                percentage reduction for each
                                                                                test run as the average of the
                                                                                hourly HF percentage reductions
                                                                                for the 3-hour peak HF emissions
                                                                                period for that run; and
                                                                               (3) Calculate the 2-run block
                                                                                average HF percentage reduction
                                                                                for the emission test as the
                                                                                average of the average HF
                                                                                percentage reductions for the
                                                                                two test runs.
                                  f. Determine the 2- i. The hourly average    (1) Calculate the HCl percentage
                                   run block average   HCl emissions rates at   reduction for each hour of the 3-
                                   HCl percentage      the inlet and outlet     hour peak HF emissions period
                                   reduction for the   of the control device.   using Equation 2 Sec.
                                   emission test.                               63.9800(g)(2); and
                                                                               (2) Calculate the average HCl
                                                                                percentage reduction for each
                                                                                test run as the average of the
                                                                                hourly HCl percentage reductions
                                                                                for the 3-hour peak HF emissions
                                                                                period for that run; and
                                                                               (3) Calculate the 2-run block
                                                                                average HCl percentage reduction
                                                                                for the emission test as the
                                                                                average of the average HCl
                                                                                percentage reductions for the
                                                                                two test runs.
18. Each new kiln that is used    a. Establish the    Data from the pressure   (1) At least every 15 minutes,
 to process clay refractory        operating limit     drop measurement         measure the pressure drop across
 products and is equipped with a   for the minimum     device during the        the DLA; and
 DLA.                              pressure drop       performance test.       (2) Provide at least one pressure
                                   across the DLA.                              drop measurement during at least
                                                                                three 15-minute periods per hour
                                                                                of testing; and
                                                                               (3) Calculate the hourly average
                                                                                pressure drop across the DLA for
                                                                                each hour of the performance
                                                                                test; and
                                                                               (4) Calculate and record the
                                                                                minimum pressure drop as the
                                                                                average of the hourly average
                                                                                pressure drops across the DLA
                                                                                for the two or three test runs,
                                                                                whichever applies.
                                  b. Establish the    Data from the limestone  (1) Ensure that limestone in the
                                   operating limit     feeder during the        feed hopper, silo, and DLA is
                                   for the limestone   performance test.        free-flowing at all times during
                                   feeder setting.                              the performance test; and
                                                                               (2) Establish the limestone
                                                                                feeder setting 1 week prior to
                                                                                the performance test; and
                                                                               (3) Record and maintain the
                                                                                feeder setting for the 1-week
                                                                                period that precedes the
                                                                                performance test and during the
                                                                                performance test.
19. Each new kiln that is used    a. Document         Data from the            Submit analyses and supporting
 to process clay refractory        conformance with    installation and         documentation demonstrating
 products and is equipped with a   specifications      calibration of the bag   conformance with EPA guidance
 DIFF or DLS/FF.                   and requirements    leak detection system.   and specifications for bag leak
                                   of the bag leak                              detection systems as part of the
                                   detection system.                            Notification of Compliance
                                                                                Status.
                                  b. Establish the    i. Data from the lime    (1) For continuous lime injection
                                   operating limit     feeder during the        systems, ensure that lime in the
                                   for the lime        performance test.        feed hopper or silo is free-
                                   feeder setting.                              flowing at all times during the
                                                                                performance test; and
                                                                               (2) Record the feeder setting for
                                                                                the three test runs; and
                                                                               (3) If the feed rate setting
                                                                                varies during the three test
                                                                                runs, calculate and record the
                                                                                average feed rate for the two or
                                                                                three test runs, whichever
                                                                                applies.

20. Each new kiln that is used    a. Establish the    i. Data from the         (1) At least every 15 minutes,
 to process clay refractory        operating limit     pressure drop            measure the pressure drop across
 products and is equipped with a   for the minimum     measurement device       the scrubber; and
 wet scrubber.                     scrubber pressure   during the performance  (2) Provide at least one pressure
                                   drop.               test.                    drop measurement during at least
                                                                                three 15-minute periods per hour
                                                                                of testing; and
                                                                               (3) Calculate the hourly average
                                                                                pressure drop across the
                                                                                scrubber for each hour of the
                                                                                performance test; and
                                                                               (4) Calculate and record the
                                                                                minimum pressure drop as the
                                                                                average of the hourly average
                                                                                pressure drops across the
                                                                                scrubber for the two or three
                                                                                test runs, whichever applies.
                                  b. Establish the    i. Data from the pH      (1) At least every 15 minutes,
                                   operating limit     measurement device       measure scrubber liquid pH; and
                                   for the minimum     during the performance  (2) Provide at least one pH
                                   scrubber liquid     test.                    measurement during at least
                                   pH.                                          three 15-minute periods per hour
                                                                                of testing; and
                                                                               (3) Calculate the hourly average
                                                                                pH values for each hour of the
                                                                                performance test; and
                                                                               (4) Calculate and record the
                                                                                minimum liquid pH as the average
                                                                                of the hourly average pH
                                                                                measurements for the two or
                                                                                three test runs, whichever
                                                                                applies.
                                  c. Establish the    i. Data from the flow    (1) At least every 15 minutes,
                                   operating limit     rate measurement         measure the scrubber liquid flow
                                   for the minimum     device during the        rate; and
                                   scrubber liquid     performance test.       (2) Provide at least one flow
                                   flow rate.                                   rate measurement during at least
                                                                                three 15-minute periods per hour
                                                                                of testing; and
                                                                               (3) Calculate the hourly average
                                                                                liquid flow rate for each hour
                                                                                of the performance test; and
                                                                               (4) Calculate and record the
                                                                                minimum liquid flow rate as the
                                                                                average of the hourly average
                                                                                liquid flow rates for the two or
                                                                                three test runs, whichever
                                                                                applies.
                                  d. If chemicals     i. Data from the         (1) At least every 15 minutes,
                                   are added to the    chemical feed rate       measure the scrubber chemical
                                   scrubber liquid,    measurement device       feed rate; and
                                   establish the       during the performance  (2) Provide at least one chemical
                                   operating limit     test.                    feed rate measurement during at
                                   for the minimum                              least three 15-minute periods
                                   scrubber chemical                            per hour of testing; and
                                   feed rate.                                  (3) Calculate the hourly average
                                                                                chemical feed rate for each hour
                                                                                of the performance test; and
                                                                               (4) Calculate and record the
                                                                                minimum chemical feed rate as
                                                                                the average of the hourly
                                                                                average chemical feed rates for
                                                                                the two or three test runs,
                                                                                whichever applies.
21. Each new and existing kiln    Measure PM          Method 5 of 40 CFR part
 that is used to process clay      emissions.          60, appendix A-3.
 refractory products that is
 subject to the PM limits
 specified in items 10.c. 11.c,
 12.a, and 13.a of Table 1 to
 this subpart.
22. Each new and existing kiln    Measure Hg          Method 29 of 40 CFR      ASTM D6784-16 \a\ may be used as
 that is used to process clay      emissions.          part 60, appendix A-8.   an alternative to EPA Method 29
 refractory products that is                                                    (portion for Hg only).
 subject to the Hg limits
 specified in items 10.d. 11.d,
 12.b, and 13.b of Table 1 to
 this subpart.
23. Each new and existing kiln    Establish the       Data from the carbon     You must measure the carbon flow
 that is used to process clay      operating limit     flow rate measurement    rate during each test run,
 refractory products and is        for the average     conducted during the     determine and record the block
 equipped with an activated        carbon flow rate.   Hg performance test.     average carbon flow rate values
 carbon injection system.                                                       for the three test runs, and
                                                                                determine and record the 3-hour
                                                                                block average of the recorded
                                                                                carbon flow rate measurements
                                                                                for the three test runs. The
                                                                                average of the three test runs
                                                                                establishes your minimum site-
                                                                                specific activated carbon flow
                                                                                rate operating limit.

24. Each existing kiln that is    Document            Data from the            Submit analyses and supporting
 used to process clay refractory   conformance with    installation and         documentation demonstrating
 products and is equipped with a   specifications      calibration of the bag   conformance with EPA guidance
 FF and a bag leak detection       and requirements    leak detection system.   and specifications for bag leak
 system.                           of the bag leak                              detection systems as part of the
                                   detection system.                            Notification of Compliance
                                                                                Status.
25. Each existing kiln that is    a. Establish the    i. Data from the         (1) At least every 15 minutes,
 used to process clay refractory   operating limit     pressure drop            measure the pressure drop across
 products and is equipped with a   for the minimum     measurement device       the scrubber; and
 wet scrubber.                     scrubber pressure   during the performance  (2) Provide at least one pressure
                                   drop.               test.                    drop measurement during at least
                                                                                three 15-minute periods per hour
                                                                                of testing; and
                                                                               (3) Calculate the hourly average
                                                                                pressure drop across the
                                                                                scrubber for each hour of the
                                                                                performance test; and
                                                                               (4) Calculate and record the
                                                                                minimum pressure drop as the
                                                                                average of the hourly average
                                                                                pressure drops across the
                                                                                scrubber for the two or three
                                                                                test runs, whichever applies.
                                  b. Establish the    i. Data from the flow    (1) At least every 15 minutes,
                                   operating limit     rate measurement         measure the scrubber liquid flow
                                   for the minimum     device during the        rate; and
                                   scrubber liquid     performance test.       (2) Provide at least one flow
                                   flow rate.                                   rate measurement during at least
                                                                                three 15-minute periods per hour
                                                                                of testing; and
                                                                               (3) Calculate the hourly average
                                                                                liquid flow rate for each hour
                                                                                of the performance test; and
                                                                               (4) Calculate and record the
                                                                                minimum liquid flow rate as the
                                                                                average of the hourly average
                                                                                liquid flow rates for the two or
                                                                                three test runs, whichever
                                                                                applies.
----------------------------------------------------------------------------------------------------------------
\a\ Incorporated by reference, see Sec.   63.14.

0
21. Table 5 to Subpart SSSSS is revised to read as follows:

Table 5 to Subpart SSSSS of Part 63--Initial Compliance With Emission
Limits

    As stated in Sec.  63.9806, you must show initial compliance with
the emission limits for affected sources according to the following
table:

------------------------------------------------------------------------
                                For the following
                                 emission limit .  You have demonstrated
           For . . .                   . .          compliance if . . .

------------------------------------------------------------------------
1. Each affected source listed  a. Each            i. Emissions measured
 in Table 1 to this subpart.     applicable         using the test
                                 emission limit     methods specified in
                                 listed in Table    Table 4 to this
                                 1 to this          subpart satisfy the
                                 subpart.           applicable emission
                                                    limits specified in
                                                    Table 1 to this
                                                    subpart; and
                                                   ii. You establish and
                                                    have a record of the
                                                    operating limits
                                                    listed in Table 2 to
                                                    this subpart over
                                                    the performance test
                                                    period; and
                                                   iii. You report the
                                                    results of the
                                                    performance test in
                                                    the Notification of
                                                    Compliance Status,
                                                    as specified by Sec.
                                                      63.9812(e)(1) and
                                                    (2).
2. Each new or existing curing  As specified in    You have satisfied
 oven, shape dryer, and kiln     items 3 through    the applicable
 that is used to process         8 of this table.   requirements
 refractory products that use                       specified in items 3
 organic HAP; each new or                           through 8 of this
 existing coking oven and                           table.
 defumer that is used to
 produce pitch-impregnated
 refractory products; each new
 shape preheater that is used
 to produce pitch-impregnated
 refractory products; AND each
 new or existing process unit
 that is exhausted to a
 thermal or catalytic oxidizer
 that also controls emissions
 from an affected shape
 preheater or pitch working
 tank.
3. Each affected continuous     The average THC    The 3-hour block
 process unit that is subject    concentration      average THC emission
 to the THC emission             must not exceed    concentration
 concentration limit listed in   20 ppmvd,          measured during the
 item 2.a., 3.a., 4, or 5 of     corrected to 18    performance test
 Table 1 to this subpart.        percent oxygen.    using EPA Methods
                                                    25A and 3A is equal
                                                    to or less than 20
                                                    ppmvd, corrected to
                                                    18 percent oxygen.

4. Each affected continuous     The average THC    The 3-hour block
 process unit that is subject    percentage         average THC
 to the THC percentage           reduction must     percentage reduction
 reduction limit listed in       equal or exceed    measured during the
 item 2.b. or 3.b. of Table 1    95 percent.        performance test
 to this subpart.                                   using EPA Method 25A
                                                    is equal to or
                                                    greater than 95
                                                    percent.
5. Each affected batch process  The average THC    The 2-run block
 unit that is subject to the     concentration      average THC emission
 THC emission concentration      must not exceed    concentration for
 limit listed in item 6.a.,      20 ppmvd,          the 3-hour peak
 7.a., 8, or 9 of Table 1 to     corrected to 18    emissions period
 this subpart.                   percent oxygen.    measured during the
                                                    performance test
                                                    using EPA Methods
                                                    25A and 3A is equal
                                                    to or less than 20
                                                    ppmvd, corrected to
                                                    18 percent oxygen.
6. Each affected batch process  The average THC    The 2-run block
 unit that is subject to the     percentage         average THC
 THC percentage reduction        reduction must     percentage reduction
 limit listed in item 6.b. or    equal or exceed    for the 3-hour peak
 7.b. of Table 1 to this         95 percent.        emissions period
 subpart.                                           measured during the
                                                    performance test
                                                    using EPA Method 25A
                                                    is equal to or
                                                    exceeds 95 percent.
7. Each affected continuous or  a. The average     i. You have installed
 batch process unit that is      THC                a THC CEMS at the
 equipped with a control         concentration      outlet of the
 device other than a thermal     must not exceed    control device or in
 or catalytic oxidizer and is    20 ppmvd,          the stack of the
 subject to the emission limit   corrected to 18    affected source; and
 listed in item 3 or 7 of        percent oxygen;   ii. You have
 Table 1 to this subpart.        or                 satisfied the
                                b. The average      requirements of PS-8
                                 THC percentage     of 40 CFR part 60,
                                 reduction must     appendix B.
                                 equal or exceed
                                 95 percent.
8. Each affected continuous or  The average THC    i. You have installed
 batch process unit that uses    concentration      a THC CEMS at the
 process changes to reduce       must not exceed    outlet of the
 organic HAP emissions and is    20 ppmvd,          control device or in
 subject to the emission limit   corrected to 18    the stack of the
 listed in item 4 or 8 of        percent oxygen.    affected source; and
 Table 1 to this subpart.                          ii. You have
                                                    satisfied the
                                                    requirements of PS-8
                                                    of 40 CFR part 60,
                                                    appendix B.
9. Each new continuous kiln     a. The average HF  i. The 3-hour block
 that is used to process clay    emissions must     average production-
 refractory products.            not exceed 0.019   based HF emissions
                                 kg/Mg (0.038 lb/   rate measured during
                                 ton) of            the performance test
                                 uncalcined clay    using one of the
                                 processed; OR      methods specified in
                                 the average        item 14.a.i. of
                                 uncontrolled HF    Table 4 to this
                                 emissions must     subpart is equal to
                                 be reduced by at   or less than 0.019
                                 least 90 percent.  kg/Mg (0.038 lb/ton)
                                                    of uncalcined clay
                                                    processed; or
                                                   The 3-hour block
                                                    average HF emissions
                                                    reduction measured
                                                    during the
                                                    performance test is
                                                    equal to or greater
                                                    than 90 percent.
                                b. The average     i. The 3-hour block
                                 HCl emissions      average production-
                                 must not exceed    based HCl emissions
                                 0.091 kg/Mg        rate measured during
                                 (0.18 lb/ton) of   the performance test
                                 uncalcined clay    using one of the
                                 processed; OR      methods specified in
                                 the average        item 14.a.i. of
                                 uncontrolled HCl   Table 4 to this
                                 emissions must     subpart is equal to
                                 be reduced by at   or less than 0.091
                                 least 30 percent.  kg/Mg (0.18 lb/ton)
                                                    of uncalcined clay
                                                    processed; or
                                                   ii. The 3-hour block
                                                    average HCl
                                                    emissions reduction
                                                    measured during the
                                                    performance test is
                                                    equal to or greater
                                                    than 30 percent.
                                c. The average PM  i. The 3-hour block
                                 emissions must     average PM emissions
                                 not exceed 1.4     measured during the
                                 kg/Mg (3.1 lb/     performance test
                                 hr).               using one of the
                                                    methods specified in
                                                    item 21 of Table 4
                                                    to this subpart is
                                                    equal to or less
                                                    than 1.4 kg/Mg (3.1
                                                    lb/hr).
                                d. The average Hg  i. The 3-hour block
                                 emissions must     average Hg emissions
                                 not exceed 6.1     measured during the
                                 [micro]g/dscm at   performance test
                                 18 percent         using one of the
                                 oxygen.            methods specified in
                                                    item 22 of Table 4
                                                    to this subpart is
                                                    equal to or less
                                                    than 6.1 [micro]g/
                                                    dscm at 18 percent
                                                    oxygen.
10. Each new batch process      a. The average     The 2-run block
 kiln that is used to process    uncontrolled HF    average HF emission
 clay refractory products.       emissions must     reduction measured
                                 be reduced by at   during the
                                 least 90 percent.  performance test is
                                                    equal to or greater
                                                    than 90 percent.
                                b. The average     The 2-run block
                                 uncontrolled HCl   average HCl
                                 emissions must     emissions reduction
                                 be reduced by at   measured during the
                                 least 30 percent.  performance test is
                                                    equal to or greater
                                                    than 30 percent.
                                c. The average PM  i. The 2-run block
                                 emissions must     average PM emissions
                                 not exceed 1.4     measured during the
                                 kg/Mg (3.1 lb/     performance test
                                 hr).               using one of the
                                                    methods specified in
                                                    item 21 of Table 4
                                                    to this subpart is
                                                    equal to or less
                                                    than 1.4 kg/Mg (3.1
                                                    lb/hr).
                                d. The average Hg  i. The 2-run block
                                 emissions must     average Hg emissions
                                 not exceed 6.1     measured during the
                                 [micro]g/dscm at   performance test
                                 18 percent         using one of the
                                 oxygen.            methods specified in
                                                    item 22 of Table 4
                                                    to this subpart is
                                                    equal to or less
                                                    than 6.1 [micro]g/
                                                    dscm at 18 percent
                                                    oxygen.
11. Each existing continuous    a. The average PM  i. The 3-hour block
 kiln that is used to produce    emissions must     average PM emissions
 clay refractory products on     not exceed 4.3     measured during the
 and after November 20, 2022.    kg/Mg (9.5 lb/     performance test
                                 hr).               using one of the
                                                    methods specified in
                                                    item 21 of Table 4
                                                    to this subpart is
                                                    equal to or less
                                                    than 4.3 kg/Mg (9.5
                                                    lb/hr).

                                b. The average Hg  i. The 3-hour block
                                 emissions must     average Hg emissions
                                 not exceed 18      measured during the
                                 [micro]g/dscm at   performance test
                                 18 percent         using one of the
                                 oxygen.            methods specified in
                                                    item 22 of Table 4
                                                    to this subpart is
                                                    equal to or less
                                                    than 18 [micro]g/
                                                    dscm at 18 percent
                                                    oxygen.
12. Each existing batch kiln    a. The average PM  i. The 2-run block
 that is used to produce clay    emissions must     average PM emissions
 refractory products on and      not exceed 4.3     measured during the
 after November 20, 2022.        kg/Mg (9.5 lb/     performance test
                                 hr).               using one of the
                                                    methods specified in
                                                    item 21 of Table 4
                                                    to this subpart is
                                                    equal to or less
                                                    than 4.3 kg/Mg (9.5
                                                    lb/hr).
                                b. The average Hg  i. The 2-run block
                                 emissions must     average Hg emissions
                                 not exceed 18      measured during the
                                 [mu]g/dscm at 18   performance test
                                 percent oxygen.    using one of the
                                                    methods specified in
                                                    item 22 of Table 4
                                                    to this subpart is
                                                    equal to or less
                                                    than 18 [micro]g/
                                                    dscm at 18 percent
                                                    oxygen.
------------------------------------------------------------------------

0
22. Table 6 to Subpart SSSSS is revised to read as follows:

Table 6 to Subpart SSSSS of Part 63--Initial Compliance With Work
Practice Standards

    As stated in Sec.  63.9806, you must show initial compliance with
the work practice standards for affected sources according to the
following table:

------------------------------------------------------------------------
                                For the following  You have demonstrated
        For each . . .            standard . . .   initial compliance if
                                                           . . .
------------------------------------------------------------------------
1. Each affected source listed  a. Each            i. You have selected
 in Table 3 to this subpart.     applicable work    a method for
                                 practice           performing each of
                                 standard listed    the applicable work
                                 in Table 3 to      practice standards
                                 this subpart.      listed in Table 3 to
                                                    this subpart; and
                                                   ii. You have included
                                                    in your Initial
                                                    Notification a
                                                    description of the
                                                    method selected for
                                                    complying with each
                                                    applicable work
                                                    practice standard,
                                                    as required by Sec.
                                                     63.9(b); and
                                                   iii. You submit a
                                                    signed statement
                                                    with the
                                                    Notification of
                                                    Compliance Status
                                                    that you have
                                                    implemented the
                                                    applicable work
                                                    practice standard
                                                    listed in Table 3 to
                                                    this subpart; and
                                                   iv. You have
                                                    described in your
                                                    OM&M plan the method
                                                    for complying with
                                                    each applicable work
                                                    practice standard
                                                    specified in Table 3
                                                    to this subpart.
2. Each basket or container     a. Control POM     i. You have
 that is used for holding        emissions from     implemented at least
 fired refractory shapes in an   any affected       one of the work
 existing shape preheater and    shape preheater.   practice standards
 autoclave during the pitch                         listed in item 1 of
 impregnation process.                              Table 3 to this
                                                    subpart; and
                                                   ii. You have
                                                    established a system
                                                    for recording the
                                                    date and cleaning
                                                    method for each time
                                                    you clean an
                                                    affected basket or
                                                    container.
3. Each affected new or         Control POM        You have captured and
 existing pitch working tank.    emissions.         vented emissions
                                                    from the affected
                                                    pitch working tank
                                                    to the device that
                                                    is used to control
                                                    emissions from an
                                                    affected defumer or
                                                    coking oven, or to a
                                                    thermal or catalytic
                                                    oxidizer that is
                                                    comparable to the
                                                    control device used
                                                    on an affected
                                                    defumer or coking
                                                    oven.
4. Each new or existing         Minimize fuel-     You use natural gas,
 chromium refractory products    based HAP          or equivalent, as
 kiln.                           emissions.         the kiln fuel.
5. Each existing clay           Minimize fuel-     You use natural gas,
 refractory products kiln.       based HAP          or equivalent, as
                                 emissions.         the kiln fuel.
6. Each new or existing curing  Minimize fuel-     You use natural gas,
 oven, shape dryer, and kiln     based HAP          or equivalent, as
 that is used to process         emissions.         the kiln fuel.
 refractory products that use
 organic HAP, on and after
 November 19, 2021.
------------------------------------------------------------------------

0
23. Table 7 to Subpart SSSSS is revised to read as follows:

Table 7 to Subpart SSSSS of Part 63--Continuous Compliance With
Emission Limits

    As stated in Sec.  63.9810, you must show continuous compliance
with the emission limits for affected sources according to the
following table:

------------------------------------------------------------------------
                                For the following
                                 emission limit .   You must demonstrate
           For . . .                   . .         continuous compliance
                                                          by . . .
------------------------------------------------------------------------
1. Each affected source listed  a. Each            i. Collecting and
 in Table 1 to this subpart.     applicable         recording the
                                 emission limit     monitoring and
                                 listed in Table    process data listed
                                 1 to this          in Table 2
                                 subpart.           (operating limits)
                                                    to this subpart; and
                                                   ii. Reducing the
                                                    monitoring and
                                                    process data
                                                    associated with the
                                                    operating limits
                                                    specified in Table 2
                                                    to this subpart; and
                                                   iii. Recording the
                                                    results of any
                                                    control device
                                                    inspections; and

                                                   iv. Reporting, in
                                                    accordance with Sec.
                                                      63.9814(e), any
                                                    deviation from the
                                                    applicable operating
                                                    limits specified in
                                                    Table 2 to this
                                                    subpart.
2. Each new or existing curing  As specified in    Satisfying the
 oven, shape dryer, and kiln     items 3 through    applicable
 that is used to process         7 of this table.   requirements
 refractory products that use                       specified in items 3
 organic HAP; each new or                           through 7 of this
 existing coking oven and                           table.
 defumer that is used to
 produce pitch-impregnated
 refractory products; each new
 shape preheater that is used
 to produce pitch-impregnated
 refractory products; AND each
 new or existing process unit
 that is exhausted to a
 thermal or catalytic oxidizer
 that also controls emissions
 from an affected shape
 preheater or pitch working
 tank.
3. Each affected process unit   a. The average     i. Collecting the
 that is equipped with a         THC                applicable data
 thermal or catalytic oxidizer.  concentration      measured by the
                                 must not exceed    control device
                                 20 ppmvd,          temperature
                                 corrected to 18    monitoring system,
                                 percent oxygen;    as specified in
                                 OR the average     items 5, 6, 8, and 9
                                 THC percentage     of Table 8 to this
                                 reduction must     subpart; and
                                 equal or exceed   ii. Reducing the
                                 95 percent.        applicable data
                                                    measured by the
                                                    control device
                                                    temperature
                                                    monitoring system,
                                                    as specified in
                                                    items 5, 6, 8, and 9
                                                    of Table 8 to this
                                                    subpart; and
                                                   iii. Maintaining the
                                                    average control
                                                    device operating
                                                    temperature for the
                                                    applicable averaging
                                                    period specified in
                                                    items 5, 6, 8, and 9
                                                    of Table 2 to this
                                                    subpart at or above
                                                    the minimum
                                                    allowable operating
                                                    temperature
                                                    established during
                                                    the most recent
                                                    performance test.
4. Each affected process unit   The average THC    Operating and
 that is equipped with a         concentration      maintaining a THC
 control device other than a     must not exceed    CEMS at the outlet
 thermal or catalytic oxidizer.  20 ppmvd,          of the control
                                 corrected to 18    device or in the
                                 percent oxygen;    stack of the
                                 OR the average     affected source,
                                 THC performance    according to the
                                 reduction must     requirements of
                                 equal or exceed    Procedure 1 of 40
                                 95 percent.        CFR part 60,
                                                    appendix F.
5. Each affected process unit   The average THC    Operating and
 that uses process changes to    concentration      maintaining a THC
 meet the applicable emission    must not exceed    CEMS at the outlet
 limit.                          20 ppmvd,          of the control
                                 corrected to 18    device or in the
                                 percent oxygen.    stack of the
                                                    affected source,
                                                    according to the
                                                    requirements of
                                                    Procedure 1 of 40
                                                    CFR part 60,
                                                    appendix F.
6. Each affected continuous     The average THC    Recording the organic
 process unit.                   concentration      HAP processing rate
                                 must not exceed    (pounds per hour)
                                 20 ppmvd,          and the operating
                                 corrected to 18    temperature of the
                                 percent oxygen;    affected source, as
                                 OR the average     specified in items
                                 THC percentage     3.b. and 3.c. of
                                 reduction must     Table 4 to this
                                 equal or exceed    subpart.
                                 95 percent.
7. Each affected batch process  The average THC    Recording the organic
 unit.                           concentration      HAP processing rate
                                 must not exceed    (pounds per batch);
                                 20 ppmvd,          and process cycle
                                 corrected to 18    time for each batch
                                 percent oxygen;    cycle; and hourly
                                 OR the average     average operating
                                 THC percentage     temperature of the
                                 reduction must     affected source, as
                                 equal or exceed    specified in items
                                 95 percent.        8.b. through 8.d. of
                                                    Table 4 to this
                                                    subpart.
8. Each new kiln that is used   As specified in    Satisfying the
 to process clay refractory      items 9 through    applicable
 products.                       11 of this table.  requirements
                                                    specified in items 9
                                                    through 11 of this
                                                    table.
9. Each new affected kiln that  a. The average HF  i. Maintaining the
 is equipped with a DLA.         emissions must     pressure drop across
                                 not exceed 0.019   the DLA at or above
                                 kg/Mg (0.038 lb/   the minimum levels
                                 ton) of            established during
                                 uncalcined clay    the most recent
                                 processed, OR      performance test;
                                 the average        and
                                 uncontrolled HF   ii. Verifying that
                                 emissions must     the limestone hopper
                                 be reduced by at   contains an adequate
                                 least 90           amount of free-
                                 percent; and       flowing limestone by
                                b. The average      performing a daily
                                 HCl emissions      visual check of the
                                 must not exceed    limestone in the
                                 0.091 kg/Mg        feed hopper; and
                                 (0.18 lb/ton) of  iii. Recording the
                                 uncalcined clay    limestone feeder
                                 processed, or      setting daily to
                                 the average        verify that the
                                 uncontrolled HCl   feeder setting is at
                                 emissions must     or above the level
                                 be reduced by at   established during
                                 least 30 percent.  the most recent
                                                    performance test;
                                                    and
                                                   iv. Using the same
                                                    grade of limestone
                                                    as was used during
                                                    the most recent
                                                    performance test and
                                                    maintaining records
                                                    of the source and
                                                    grade of limestone.

                                c. The average PM  i. Performing VE
                                 emissions must     observations of the
                                 not exceed 1.4     stack at the
                                 kg/Mg (3.1 lb/     frequency specified
                                 hr); and           in Sec.   63.9810(f)
                                d. The average Hg   using EPA Method 22
                                 emissions must     of 40 CFR part 60,
                                 not exceed 6.1     appendix A-7;
                                 [micro]g/dscm,     maintaining no VE
                                 corrected to 18    from the stack.
                                 percent oxygen.
10. Each new affected kiln      a. The average HF  i. Verifying at least
 that is equipped with a DIFF    emissions must     once each 8-hour
 or DLS/FF.                      not exceed 0.019   shift that lime is
                                 kg/Mg (0.038 lb/   free-flowing by
                                 ton) of            means of a visual
                                 uncalcined clay    check, checking the
                                 processed; OR      output of a load
                                 the average        cell, carrier gas/
                                 uncontrolled HF    lime flow indicator,
                                 emissions must     or carrier gas
                                 be reduced by at   pressure drop
                                 least 90           measurement system;
                                 percent; and       and
                                b. The average     ii. Recording feeder
                                 HCl emissions      setting daily to
                                 must not exceed    verify that the
                                 0.091 kg/Mg        feeder setting is at
                                 (0.18 lb/ton) of   or above the level
                                 uncalcined clay    established during
                                 processed; OR      the most recent
                                 the average        performance test;
                                 uncontrolled HCl   and
                                 emissions must    iii. Initiating
                                 be reduced by at   corrective action
                                 least 30           within 1 hour of a
                                 percent; and.      bag leak detection
                                c. The average PM   system alarm AND
                                 emissions must     completing
                                 not exceed 1.4     corrective actions
                                 kg/Mg (3.1 lb/     in accordance with
                                 hr); and.          the OM&M plan, AND
                                d. The average Hg   operating and
                                 emissions must     maintaining the
                                 not exceed 6.1     fabric filter such
                                 [micro]g/dscm,     that the alarm does
                                 corrected to 18    not engage for more
                                 percent oxygen.    than 5 percent of
                                                    the total operating
                                                    time in a 6-month
                                                    block reporting
                                                    period.
11. Each new affected kiln      a. The average HF  i. Maintaining the
 that is equipped with a wet     emissions must     pressure drop across
 scrubber.                       not exceed 0.019   the scrubber, liquid
                                 kg/Mg (0.038 lb/   pH, and liquid flow
                                 ton) of            rate at or above the
                                 uncalcined clay    minimum levels
                                 processed; OR      established during
                                 the average        the most recent
                                 uncontrolled HF    performance test;
                                 emissions must     and
                                 be reduced by at  ii. If chemicals are
                                 least 90           added to the
                                 percent; and       scrubber liquid,
                                b. The average      maintaining the
                                 HCl emissions      average chemical
                                 must not exceed    feed rate at or
                                 0.091 kg/Mg        above the minimum
                                 (0.18 lb/ton) of   chemical feed rate
                                 uncalcined clay    established during
                                 processed; OR      the most recent
                                 the average        performance test.
                                 uncontrolled HCl
                                 emissions must
                                 be reduced by at
                                 least 30
                                 percent; and.
                                c. The average PM
                                 emissions must
                                 not exceed 1.4
                                 kg/Mg (3.1 lb/
                                 hr); and.
                                d. The average Hg
                                 emissions must
                                 not exceed 6.1
                                 [micro]g/dscm,
                                 corrected to 18
                                 percent oxygen.
12. Each new affected kiln      The average Hg     Collecting the carbon
 that is equipped with an        emissions must     flow rate data
 activated carbon injection      not exceed 6.1     according to Sec.
 system.                         [micro]g/dscm,     63.9804(a); reducing
                                 corrected to 18    the carbon flow rate
                                 percent oxygen.    data to 3-hour block
                                                    averages according
                                                    to Sec.
                                                    63.9804(a);
                                                    maintaining the
                                                    average carbon flow
                                                    rate for each 3-hour
                                                    block period at or
                                                    above the average
                                                    carbon flow rate
                                                    established during
                                                    the Hg performance
                                                    test in which
                                                    compliance was
                                                    demonstrated.
13. Each existing affected      a. The average PM  i. Performing VE
 kiln that is equipped with a    emissions must     observations of the
 DLA or no add-on control.       not exceed 4.3     stack at the
                                 kg/Mg (9.5 lb/     frequency specified
                                 hr); and.          in Sec.   63.9810(f)
                                b. The average Hg   using EPA Method 22
                                 emissions must     of 40 CFR part 60,
                                 not exceed 18      appendix A-7;
                                 [micro]g/dscm,     maintaining no VE
                                 corrected to 18    from the stack.
                                 percent oxygen.
14. Each existing affected      a. The average PM  i. If you use a bag
 kiln that is equipped with a    emissions must     leak detection
 DIFF or DLS/FF.                 not exceed 4.3     system, as
                                 kg/Mg (9.5 lb/     prescribed in Sec.
                                 hr).               63.9804(f),
                                                    initiating
                                                    corrective action
                                                    within 1 hour of a
                                                    bag leak detection
                                                    system alarm AND
                                                    completing
                                                    corrective actions
                                                    in accordance with
                                                    the OM&M plan, AND
                                                    operating and
                                                    maintaining the
                                                    fabric filter such
                                                    that the alarm does
                                                    not engage for more
                                                    than 5 percent of
                                                    the total operating
                                                    time in a 6-month
                                                    block reporting
                                                    period; OR
                                                   ii. Performing VE
                                                    observations of the
                                                    stack at the
                                                    frequency specified
                                                    in Sec.   63.9810(f)
                                                    using EPA Method 22
                                                    of 40 CFR part 60,
                                                    appendix A-7;
                                                    maintaining no VE
                                                    from the stack.

15. Each existing affected      a. The average PM  i. Maintaining the
 kiln that is equipped with a    emissions must     pressure drop across
 wet scrubber.                   not exceed 4.3     the scrubber and
                                 kg/Mg (9.5 lb/     liquid flow rate at
                                 hr); and           or above the minimum
                                b. The average Hg   levels established
                                 emissions must     during the most
                                 not exceed 18      recent performance
                                 [micro]g/dscm,     test.
                                 corrected to 18
                                 percent oxygen.
16. Each existing affected      The average Hg     Collecting the carbon
 kiln that is equipped with an   emissions must     flow rate data
 activated carbon injection      not exceed 18      according to Sec.
 system.                         [micro]g/dscm,     63.9804(a); reducing
                                 corrected to 18    the carbon flow rate
                                 percent oxygen.    data to 3-hour block
                                                    averages according
                                                    to Sec.
                                                    63.9804(a);
                                                    maintaining the
                                                    average carbon flow
                                                    rate for each 3-hour
                                                    block period at or
                                                    above the average
                                                    carbon flow rate
                                                    established during
                                                    the Hg performance
                                                    test in which
                                                    compliance was
                                                    demonstrated.
------------------------------------------------------------------------

0
24. Table 8 to Subpart SSSSS is revised to read as follows:

Table 8 to Subpart SSSSS of Part 63--Continuous Compliance With
Operating Limits

    As stated in Sec.  63.9810, you must show continuous compliance
with the operating limits for affected sources according to the
following table:

------------------------------------------------------------------------
                                For the following
                                operating limit .   You must demonstrate
           For . . .                   . .         continuous compliance
                                                          by . . .
------------------------------------------------------------------------
1. Each affected source listed  a. Each            i. Maintaining all
 in Table 2 to this subpart.     applicable         applicable process
                                 operating limit    and control device
                                 listed in Table    operating parameters
                                 2 to this          within the limits
                                 subpart.           established during
                                                    the most recent
                                                    performance test;
                                                    and
                                                   ii. Conducting
                                                    annually an
                                                    inspection of all
                                                    duct work, vents,
                                                    and capture devices
                                                    to verify that no
                                                    leaks exist and that
                                                    the capture device
                                                    is operating such
                                                    that all emissions
                                                    are properly vented
                                                    to the control
                                                    device in accordance
                                                    with the OM&M plan.
2. Each affected continuous     a. The operating   i. Operating the
 kiln used to manufacture        limits specified   control device on
 refractory products that use    in items 2.a.      the affected kiln
 organic HAP that is equipped    through 2.c. of    during all times
 with a THC control device.      Table 2 to this    except during
                                 subpart.           periods of approved
                                                    scheduled
                                                    maintenance, as
                                                    specified in Sec.
                                                    63.9792(e); and
                                                   ii. Before May 19,
                                                    2022, minimizing HAP
                                                    emissions from the
                                                    affected kiln during
                                                    all periods of
                                                    scheduled
                                                    maintenance of the
                                                    kiln control device
                                                    when the kiln is
                                                    operating and the
                                                    control device is
                                                    out of service; on
                                                    and after May 19,
                                                    2022, minimizing HAP
                                                    emissions during the
                                                    period when the kiln
                                                    is operating and the
                                                    control device is
                                                    out of service by
                                                    complying with the
                                                    applicable standard
                                                    in Table 3 to this
                                                    subpart; and
                                                   iii. Minimizing the
                                                    duration of all
                                                    periods of scheduled
                                                    maintenance of the
                                                    kiln control device
                                                    when the kiln is
                                                    operating and the
                                                    control device is
                                                    out of service; on
                                                    and after May 19,
                                                    2022, the total time
                                                    during which the
                                                    kiln is operating
                                                    and the control
                                                    device is out of
                                                    service for the each
                                                    year on a 12-month
                                                    rolling basis must
                                                    not exceed 750
                                                    hours.
3. Each new or existing curing  As specified in    Satisfying the
 oven, shape dryer, and kiln     items 4 through    applicable
 that is used to process         9 of this table.   requirements
 refractory products that use                       specified in items 4
 organic HAP; each new or                           through 9 of this
 existing coking oven and                           table.
 defumer that is used to
 produce pitch-impregnated
 refractory products; each new
 shape preheater that is used
 to produce pitch-impregnated
 refractory products; AND each
 new or existing process unit
 that is exhausted to a
 thermal or catalytic oxidizer
 that also controls emissions
 from an affected shape
 preheater or pitch working
 tank.
4. Each affected continuous     Maintain process   i. Recording the
 process unit.                   operating          organic HAP
                                 parameters         processing rate
                                 within the         (pounds per hour);
                                 limits             and
                                 established       ii. Recording the
                                 during the most    operating
                                 recent             temperature of the
                                 performance test.  affected source at
                                                    least hourly; and
                                                   iii. Maintaining the
                                                    3-hour block average
                                                    organic HAP
                                                    processing rate at
                                                    or below the maximum
                                                    organic HAP
                                                    processing rate
                                                    established during
                                                    the most recent
                                                    performance test.

5. Continuous process units     Maintain the 3-    i. Measuring and
 that are equipped with a        hour block         recording the
 thermal oxidizer.               average            thermal oxidizer
                                 operating          combustion chamber
                                 temperature in     temperature at least
                                 the thermal        every 15 minutes;
                                 oxidizer           and
                                 combustion        ii. Calculating the
                                 chamber at or      hourly average
                                 above the          thermal oxidizer
                                 minimum            combustion chamber
                                 allowable          temperature; and
                                 operating
                                 temperature
                                 established
                                 during the most
                                 recent
                                 performance test.
                                                   iii. Maintaining the
                                                    3-hour block average
                                                    thermal oxidizer
                                                    combustion chamber
                                                    temperature at or
                                                    above the minimum
                                                    allowable operating
                                                    temperature
                                                    established during
                                                    the most recent
                                                    performance test;
                                                    and
                                                   iv. Reporting, in
                                                    accordance with Sec.
                                                      63.9814(e), any 3-
                                                    hour block average
                                                    operating
                                                    temperature
                                                    measurements below
                                                    the minimum
                                                    allowable thermal
                                                    oxidizer combustion
                                                    chamber operating
                                                    temperature
                                                    established during
                                                    the most recent
                                                    performance test.
6. Continuous process units     a. Maintain the 3- i. Measuring and
 that are equipped with a        hour block         recording the
 catalytic oxidizer.             average            temperature at the
                                 temperature at     inlet of the
                                 the inlet of the   catalyst bed at
                                 catalyst bed at    least every 15
                                 or above the       minutes; and
                                 minimum           ii. Calculating the
                                 allowable          hourly average
                                 catalyst bed       temperature at the
                                 inlet              inlet of the
                                 temperature        catalyst bed; and
                                 established
                                 during the most
                                 recent
                                 performance test.
                                                   iii. Maintaining the
                                                    3-hour block average
                                                    temperature at the
                                                    inlet of the
                                                    catalyst bed at or
                                                    above the minimum
                                                    allowable catalyst
                                                    bed inlet
                                                    temperature
                                                    established during
                                                    the most recent
                                                    performance test;
                                                    and
                                                   iv. Reporting, in
                                                    accordance with Sec.
                                                      63.9814(e), any 3-
                                                    hour block average
                                                    catalyst bed inlet
                                                    temperature
                                                    measurements below
                                                    the minimum
                                                    allowable catalyst
                                                    bed inlet
                                                    temperature
                                                    established during
                                                    the most recent
                                                    performance; and
                                                   v. Checking the
                                                    activity level of
                                                    the catalyst at
                                                    least every 12
                                                    months and taking
                                                    any necessary
                                                    corrective action,
                                                    such as replacing
                                                    the catalyst, to
                                                    ensure that the
                                                    catalyst is
                                                    performing as
                                                    designed.
7. Each affected batch process  Maintain process   i. Recording the
 unit.                           operating          organic HAP
                                 parameters         processing rate
                                 within the         (pounds per batch);
                                 limits             and
                                 established       ii. Recording the
                                 during the most    hourly average
                                 recent             operating
                                 performance test.  temperature of the
                                                    affected source; and
                                                   iii. Recording the
                                                    process cycle time
                                                    for each batch
                                                    cycle; and
                                                   iv. Maintaining the
                                                    organic HAP
                                                    processing rate at
                                                    or below the maximum
                                                    organic HAP
                                                    processing rate
                                                    established during
                                                    the most recent
                                                    performance test.
8. Batch process units that     Maintain the       i. Measuring and
 are equipped with a thermal     hourly average     recording the
 oxidizer.                       temperature in     thermal oxidizer
                                 the thermal        combustion chamber
                                 oxidizer           temperature at least
                                 combustion         every 15 minutes;
                                 chamber at or      and
                                 above the hourly  ii. Calculating the
                                 average            hourly average
                                 temperature        thermal oxidizer
                                 established for    combustion chamber
                                 the                temperature; and
                                 corresponding 1-
                                 hour period of
                                 the cycle during
                                 the most recent
                                 performance test.
                                                   iii. From the start
                                                    of each batch cycle
                                                    until 3 hours have
                                                    passed since the
                                                    process unit reached
                                                    maximum temperature,
                                                    maintaining the
                                                    hourly average
                                                    operating
                                                    temperature in the
                                                    thermal oxidizer
                                                    combustion chamber
                                                    at or above the
                                                    minimum allowable
                                                    operating
                                                    temperature
                                                    established for the
                                                    corresponding period
                                                    during the most
                                                    recent performance
                                                    test, as determined
                                                    according to item 11
                                                    of Table 4 to this
                                                    subpart; and
                                                   iv. For each
                                                    subsequent hour of
                                                    the batch cycle,
                                                    maintaining the
                                                    hourly average
                                                    operating
                                                    temperature in the
                                                    thermal oxidizer
                                                    combustion chamber
                                                    at or above the
                                                    minimum allowable
                                                    operating
                                                    temperature
                                                    established for the
                                                    corresponding hour
                                                    during the most
                                                    recent performance
                                                    test, as specified
                                                    in item 13 of Table
                                                    4 to this subpart;
                                                    and
                                                   v. Reporting, in
                                                    accordance with Sec.
                                                      63.9814(e), any
                                                    temperature
                                                    measurements below
                                                    the minimum
                                                    allowable thermal
                                                    oxidizer combustion
                                                    chamber temperature
                                                    measured during the
                                                    most recent
                                                    performance test.

9. Batch process units that     Maintain the       i. Measuring and
 are equipped with a catalytic   hourly average     recording
 oxidizer.                       temperature at     temperatures at the
                                 the inlet of the   inlet of the
                                 catalyst bed at    catalyst bed at
                                 or above the       least every 15
                                 corresponding      minutes; and
                                 hourly average    ii. Calculating the
                                 temperature        hourly average
                                 established for    temperature at the
                                 the                inlet of the
                                 corresponding 1-   catalyst bed; and
                                 hour period of
                                 the cycle during
                                 the most recent
                                 performance test.
                                                   iii. From the start
                                                    of each batch cycle
                                                    until 3 hours have
                                                    passed since the
                                                    process unit reached
                                                    maximum temperature,
                                                    maintaining the
                                                    hourly average
                                                    operating
                                                    temperature at the
                                                    inlet of the
                                                    catalyst bed at or
                                                    above the minimum
                                                    allowable bed inlet
                                                    temperature
                                                    established for the
                                                    corresponding period
                                                    during the most
                                                    recent performance
                                                    test, as determined
                                                    according to item 12
                                                    of Table 4 to this
                                                    subpart; and
                                                   iv. For each
                                                    subsequent hour of
                                                    the batch cycle,
                                                    maintaining the
                                                    hourly average
                                                    operating
                                                    temperature at the
                                                    inlet of the
                                                    catalyst bed at or
                                                    above the minimum
                                                    allowable bed inlet
                                                    temperature
                                                    established for the
                                                    corresponding hour
                                                    during the most
                                                    recent performance
                                                    test, as specified
                                                    in item 13 of Table