Unit
Unit means the EGU identified paragraph (j)(1) of this section. (3) Emission limitations. The owner/operator of the unit shall not emit or cause to be emitted pollutants in excess of the following limitations, in pounds of pollutant per million British thermal units (lb/MMBtu), from the subject unit. (4) Alternative emission limitations. The owner/operator of the unit may choose to comply with the following limitations in lieu of the emission limitations listed in paragraph (j)(3) of this section. (i) The owner/operator of the unit shall combust only natural gas or natural gas combined with landfill gas in the subject unit. (ii) The owner/operator of the unit shall not emit or cause to be emitted pollutants in excess of the following limitations, in pounds of pollutant per million British thermal units (lb/MMBtu), from the subject unit. (iii) If the results of the initial performance test conducted in accordance with paragraph (j)(8)(iv) of this section show PM10 emissions greater than the limit in paragraph (j)(4)(ii) of this section, the owner/operator may elect to comply with an emission limit equal to the result of the initial performance test, in lieu of the PM10 emission limit in paragraph (j)(4)(ii). (5) Compliance dates. (i) The owner/operator of the unit subject to this paragraph (j)(5) shall comply with the NOX and SO2 emission limitations of paragraph (j)(3) of this section no later than September 4, 2017. (ii) The owner/operator of the unit subject to this paragraph (j)(5) shall comply with the PM emission limitation of paragraph (j)(3) of this section no later than April 16, 2015. (6) Alternative compliance dates. If the owner/operator chooses to comply with paragraph (j)(4) of this section in lieu of paragraph (j)(3) of this section, the owner/operator of the unit shall comply with the NOX, SO2, and PM10 emission limitations of paragraph (j)(4) of this section no later than December 31, 2017. (7) Compliance determination(i) Continuous emission monitoring system. (A) At all times after the compliance date specified in paragraph (j)(5)(i) of this section, the owner/operator of the unit shall maintain, calibrate, and operate CEMS, in full compliance with the requirements found at 40 CFR part 75, to accurately measure SO2, NOX, diluent, and stack gas volumetric flow rate from the unit. All valid CEMS hourly data shall be used to determine compliance with the emission limitations for NOX and SO2 in paragraph (j)(3) of this section. When the CEMS is out-of-control as defined by 40 CFR part 75, the CEMS data shall be treated as missing data and not used to calculate the emission average. Each required CEMS must obtain valid data for at least 90 percent of the unit operating hours, on an annual basis. (B) The owner/operator of the unit shall comply with the quality assurance procedures for CEMS found in 40 CFR part 75. In addition to the requirements in part 75 of this chapter, relative accuracy test audits shall be calculated for both the NOX and SO2 pounds per hour measurement and the heat input measurement. The CEMS monitoring data shall not be bias adjusted. Calculations of relative accuracy for lb/hour of NOX, SO2, and heat input shall be performed each time the CEMS undergo relative accuracy testing. (ii) Ammonia consumption monitoring. Upon and after the completion of installation of ammonia injection on the unit, the owner/operator shall install, and thereafter maintain and operate, instrumentation to continuously monitor and record levels of ammonia consumption for that unit. (iii) Compliance determination for NOX. Compliance with the NOX emission limit described in paragraph (j)(3) of this section shall be determined based on a rolling 30 boiler-operating-day basis. The 30-boiler-operating-day rolling NOX emission rate for the unit shall be calculated for each boiler operating day in accordance with the following procedure: Step one, sum the hourly pounds of NOX emitted for the current boiler operating day and the preceding twenty-nine (29) boiler operating days to calculate the total pounds of NOX emitted over the most recent thirty (30) boiler-operating-day period for that unit; Step two, sum the total heat input, in MMBtu, during the current boiler operating day and the preceding twenty-nine (29) boiler operating days to calculate the total heat input over the most recent thirty (30) boiler-operating-day period for that unit; Step three, divide the total amount of NOX calculated from Step one by the total heat input calculated from Step two to calculate the rolling 30-boiler-operating-day NOX emission rate, in pounds per MMBtu for that unit. Each rolling 30-boiler-operating-day NOX emission rate shall include all emissions and all heat input that occur during all periods within any boiler operating day, including emissions from startup, shutdown, and malfunction. If a valid NOX pounds per hour or heat input is not available for any hour for the unit, that heat input and NOX pounds per hour shall not be used in the calculation of the rolling 30-boiler-operating-day emission rate. (iv) Compliance determination for SO2. Compliance with the SO2 emission limit described in paragraph (j)(3) of this section shall be determined based on a rolling 30 boiler-operating-day basis. The rolling 30-boiler-operating-day SO2 emission rate for the unit shall be calculated for each boiler operating day in accordance with the following procedure: Step one, sum the hourly pounds of SO2 emitted for the current boiler operating day and the preceding twenty-nine (29) boiler operating days to calculate the total pounds of SO2 emitted over the most recent thirty (30) boiler-operating-day period for that unit; Step two, sum the total heat input, in MMBtu, during the current boiler operating day and the preceding twenty-nine (29) boiler operating days to calculate the total heat input over the most recent thirty (30) boiler-operating-day period for that unit; Step three, divide the total amount of SO2 calculated from Step one by the total heat input calculated from Step two to calculate the rolling 30-boiler-operating-day SO2 emission rate, in pounds per MMBtu for that unit. Each rolling 30-boiler-operating-day SO2 emission rate shall include all emissions and all heat input that occur during all periods within any boiler operating day, including emissions from startup, shutdown, and malfunction. If a valid SO2 pounds per hour or heat input is not available for any hour for the unit, that heat input and SO2 pounds per hour shall not be used in the calculation of the rolling 30-boiler-operating-day emission rate. (v) Compliance determination for PM. Compliance with the PM emission limit described in paragraph (j)(3) of this section shall be determined from annual performance stack tests. Within sixty (60) days either preceding or following the compliance deadline specified in paragraph (j)(5)(ii) of this section, and on at least an annual basis thereafter, the owner/operator of the unit shall conduct a stack test on the unit to measure PM using EPA Methods 1 through 5, in 40 CFR part 60, appendix A. Each test shall consist of three runs, with each run at least one hundred twenty (120) minutes in duration and each run collecting a minimum sample of sixty (60) dry standard cubic feet. Results shall be reported in lb/MMBtu using the calculation in 40 CFR part 60, appendix A, Method 19. (8) Alternative compliance determination. If the owner/operator chooses to comply with the emission limits of paragraph (j)(4) of this section, this paragraph (j)(8) may be used in lieu of paragraph (j)(7) of this section to demonstrate compliance with the emission limits in paragraph (j)(4) of this section. (i) Continuous emission monitoring system. (A) At all times after the compliance date specified in paragraph (j)(6) of this section, the owner/operator of the unit shall maintain, calibrate, and operate CEMS, in full compliance with the requirements found at 40 CFR part 75, to accurately measure NOX, diluent, and stack gas volumetric flow rate from the unit. All valid CEMS hourly data shall be used to determine compliance with the emission limitation for NOX in paragraph (j)(4) of this section. When the CEMS is out-of-control as defined by 40 CFR part 75, the CEMS data shall be treated as missing data and not used to calculate the emission average. Each required CEMS must obtain valid data for at least ninety (90) percent of the unit operating hours, on an annual basis. (B) The owner/operator of the unit shall comply with the quality assurance procedures for CEMS found in 40 CFR part 75. In addition to these part 75 requirements, relative accuracy test audits shall be calculated for both the NOX pounds per hour measurement and the heat input measurement. The CEMS monitoring data shall not be bias adjusted. Calculations of relative accuracy for lb/hr of NOX and heat input shall be performed each time the CEMS undergo relative accuracy testing. (ii) Compliance determination for NOX. Compliance with the NOX emission limit described in paragraph (j)(4) of this section shall be determined based on a rolling 30 boiler-operating-day basis. The rolling 30-boiler-operating-day NOX emission rate for the unit shall be calculated for each boiler operating day in accordance with the following procedure: Step one, sum the hourly pounds of NOX emitted for the current boiler operating day and the preceding twenty-nine (29) boiler-operating-days to calculate the total pounds of NOX emitted over the most recent thirty (30) boiler-operating-day period for that unit; Step two, sum the total heat input, in MMBtu, during the current boiler operating day and the preceding twenty-nine (29) boiler-operating-days to calculate the total heat input over the most recent thirty (30) boiler-operating-day period for that unit; Step three, divide the total amount of NOX calculated from Step one by the total heat input calculated from Step two to calculate the rolling 30-boiler-operating-day NOX emission rate, in pounds per MMBtu for that unit. Each rolling 30-boiler-operating-day NOX emission rate shall include all emissions and all heat input that occur during all periods within any boiler operating day, including emissions from startup, shutdown, and malfunction. If a valid NOX pounds per hour or heat input is not available for any hour for the unit, that heat input and NOX pounds per hour shall not be used in the calculation of the rolling 30-boiler-operating-day emission rate. (iii) Compliance determination for SO2. Compliance with the SO2 emission limit for the unit shall be determined from fuel sulfur documentation demonstrating the use of either natural gas or natural gas combined with landfill gas. (iv) Compliance determination for PM10. Compliance with the PM10 emission limit for the unit shall be determined from performance stack tests. Within sixty (60) days following the compliance deadline specified in paragraph (j)(6) of this section, and at the request of the Regional Administrator thereafter, the owner/operator of the unit shall conduct a stack test on the unit to measure PM10 using EPA Methods 1 through 4, 201A, and Method 202, per 40 CFR part 51, appendix M. Each test shall consist of three runs, with each run at least one hundred twenty (120) minutes in duration and each run collecting a minimum sample of sixty (60) dry standard cubic feet. Results shall be reported in lb/MMBtu using the calculation in 40 CFR part 60, appendix A, Method 19. (9) Recordkeeping. The owner/operator shall maintain the following records for at least five years: (i) CEMS data measuring NOX in lb/hr, SO2 in lb/hr, and heat input rate per hour. (ii) Daily rolling 30-boiler operating day emission rates of NOX and SO2 calculated in accordance with paragraphs (j)(7)(iii) and (iv) of this section. (iii) Records of the relative accuracy test for NOX lb/hr and SO2 lb/hr measurement, and hourly heat input measurement. (iv) Records of quality assurance and quality control activities for emissions systems including, but not limited to, any records required by 40 CFR part 75. (v) Records of all major maintenance activities conducted on emission units, air pollution control equipment, and CEMS. (vi) Any other records required by 40 CFR part 75. (vii) Records of ammonia consumption for the unit, as recorded by the instrumentation required in paragraph (j)(7)(ii) of this section. (viii) All PM stack test results. (10) Alternative recordkeeping requirements. If the owner/operator chooses to comply with the emission limits of paragraph (j)(4) of this section, the owner/operator shall maintain the records listed in this paragraph (j)(10) in lieu of the records contained in paragraph (j)(9) of this section. The owner/operator shall maintain the following records for at least five years: (i) CEMS data measuring NOX in lb/hr and heat input rate per hour. (ii) Daily rolling 30-boiler operating day emission rates of NOX calculated in accordance with paragraph (j)(8)(ii) of this section. (iii) Records of the relative accuracy test for NOX lb/hr measurement and hourly heat input measurement. (iv) Records of quality assurance and quality control activities for emissions systems including, but not limited to, any records required by 40 CFR part 75. (v) Records of all major maintenance activities conducted on emission units, air pollution control equipment, and CEMS. (vi) Any other records required by 40 CFR part 75. (vii) Records sufficient to demonstrate that the fuel for the unit is natural gas or natural gas combined with landfill gas. (viii) All PM10 stack test results. (11) Notifications. All notifications required under this section shall be submitted by the owner/operator to the Director, Enforcement Division (Mail Code ENF-2-1), U.S. Environmental Protection Agency, Region 9, 75 Hawthorne Street, San Francisco, California 94105-3901. (i) By March 31, 2017, the owner/operator shall submit notification by letter whether it will comply with the emission limits in paragraph (j)(3) of this section or whether it will comply with the emission limits in paragraph (j)(4) of this section. In the event that the owner/operator does not submit timely and proper notification by March 31, 2017, the owner/operator may not choose to comply with the alternative emission limits in paragraph (j)(4) of this section and shall comply with the emission limits in paragraph (j)(3) of this section. (ii) The owner/operator shall submit notification of commencement of construction of any equipment which is being constructed to comply with either the NOX or SO2 emission limits in paragraph (j)(3) of this section. (iii) The owner/operator shall submit semiannual progress reports on construction of any such equipment. (iv) The owner/operator shall submit notification of initial startup of any such equipment. (v) The owner/operator shall submit notification of its intent to comply with the PM10 emission limit in paragraph (j)(4)(iii) of this section within one hundred twenty (120) days following the compliance deadline specified in paragraph (j)(6) of this section. The notification shall include results of the initial performance test and the resulting applicable emission limit. (12) Reporting. All reports required under this section shall be submitted by the owner/operator to the Director, Enforcement Division (Mail Code ENF-2-1), U.S. Environmental Protection Agency, Region 9, 75 Hawthorne Street, San Francisco, California 94105-3901. All reports required under this section shall be submitted within 30 days after the applicable compliance date(s) in paragraph (j)(5) of this section and at least semiannually thereafter, within 30 days after the end of a semiannual period. The owner/operator may submit reports more frequently than semiannually for the purposes of synchronizing reports required under this section with other reporting requirements, such as the title V monitoring report required by 40 CFR 70.6(a)(3)(iii)(A), but at no point shall the duration of a semiannual period exceed six months. (i) The owner/operator shall submit a report that lists the daily rolling 30-boiler operating day emission rates for NOX and SO2. (ii) The owner/operator shall submit excess emission reports for NOX and SO2 limits. Excess emissions means emissions that exceed the emission limits specified in paragraph (j)(3) of this section. Excess emission reports shall include the magnitude, date(s), and duration of each period of excess emissions; specific identification of each period of excess emissions that occurs during startups, shutdowns, and malfunctions of the unit; the nature and cause of any malfunction (if known); and the corrective action taken or preventative measures adopted. (iii) The owner/operator shall submit a summary of CEMS operation, to include dates and duration of each period during which the CEMS was inoperative (except for zero and span adjustments and calibration checks), reason(s) why the CEMS was inoperative and steps taken to prevent recurrence, and any CEMS repairs or adjustments. (iv) The owner/operator shall submit the results of any relative accuracy test audits performed during the two preceding calendar quarters. (v) When no excess emissions have occurred or the CEMS has not been inoperative, repaired, or adjusted during the reporting period, the owner/operator shall state such information in the semiannual report. (vi) The owner/operator shall submit results of any PM stack tests conducted for demonstrating compliance with the PM limit specified in paragraph (j)(3) of this section. (13) Alternative reporting requirements. If the owner/operator chooses to comply with the emission limits of paragraph (j)(4) of this section, the owner/operator shall submit the reports listed in this paragraph (j)(13) in lieu of the reports contained in paragraph (j)(12) of this section. All reports required under this paragraph (j)(13) shall be submitted by the owner/operator to the Director, Enforcement Division (Mail Code ENF-2-1), U.S. Environmental Protection Agency, Region 9, 75 Hawthorne Street, San Francisco, California 94105-3901. All reports required under this paragraph (j)(13) shall be submitted within 30 days after the applicable compliance date(s) in paragraph (j)(6) of this section and at least semiannually thereafter, within 30 days after the end of a semiannual period. The owner/operator may submit reports more frequently than semiannually for the purposes of synchronizing reports required under this section with other reporting requirements, such as the title V monitoring report required by 40 CFR 70.6(a)(3)(iii)(A), but at no point shall the duration of a semiannual period exceed six months. (i) The owner/operator shall submit a report that lists the daily rolling 30-boiler operating day emission rates for NOX. (ii) The owner/operator shall submit excess emissions reports for NOX limits. Excess emissions means emissions that exceed the emission limit specified in paragraph (j)(4) of this section. The reports shall include the magnitude, date(s), and duration of each period of excess emissions; specific identification of each period of excess emissions that occurs during startups, shutdowns, and malfunctions of the unit; the nature and cause of any malfunction (if known); and the corrective action taken or preventative measures adopted. (iii) The owner/operator shall submit CEMS performance reports, to include dates and duration of each period during which the CEMS was inoperative (except for zero and span adjustments and calibration checks), reason(s) why the CEMS was inoperative and steps taken to prevent recurrence, and any CEMS repairs or adjustments. (iv) The owner/operator shall submit the results of any relative accuracy test audits performed during the two preceding calendar quarters. (v) When no excess emissions have occurred or the CEMS has not been inoperative, repaired, or adjusted during the reporting period, the owner/operator shall state such information in the semiannual report. (vi) The owner/operator shall submit results of any PM10 stack tests conducted for demonstrating compliance with the PM10 limit specified in paragraph (j)(4) of this section. (14) Equipment operations. (i) At all times, including periods of startup, shutdown, and malfunction, the owner/operator shall, to the extent practicable, maintain and operate the unit, including associated air pollution control equipment, in a manner consistent with good air pollution control practices for minimizing emissions. Pollution control equipment shall be designed and capable of operating properly to minimize emissions during all expected operating conditions. Determination of whether acceptable operating and maintenance procedures are being used will be based on information available to the Regional Administrator, which may include, but is not limited to, monitoring results, review of operating and maintenance procedures, and inspection of the unit. (ii) After completion of installation of ammonia injection on a unit, the owner/operator shall inject sufficient ammonia to achieve compliance with the NOX emission limit contained in paragraph (j)(3) of this section for that unit while preventing excessive ammonia emissions. (15) Enforcement. Notwithstanding any other provision in this implementation plan, any credible evidence or information relevant as to whether the unit would have been in compliance with applicable requirements if the appropriate performance or compliance test had been performed can be used to establish whether or not the owner/operator has violated or is in violation of any standard or applicable emission limit in the plan.