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NR 428.22(1)(a)3.b. b. If wall-fired with a heat release rate equal to or greater than 17,000 Btu per cubic feet per hour, 0.17 pound per mmBtu of heat input.
NR 428.22(1)(a)3.c. c. If wall-fired with a heat release rate less than 17,000 Btu per cubic feet per hour, 0.15 pound per mmBtu of heat input.
NR 428.22(1)(a)3.d. d. If cyclone-fired, 0.15 pound per mmBtu of heat input.
NR 428.22(1)(a)3.f. f. If arch-fired, 0.18 pound per mmBtu of heat input.
NR 428.22(1)(a)3.g. g. If fluidized bed-fired, 0.10 pound per mmBtu of heat input.
NR 428.22(1)(a)3.h. h. If stoker-fired, 0.20 pound per mmBtu of heat input.
NR 428.22(1)(a)4. 4. For a solid fuel-fired boiler with a maximum heat input capacity equal to or greater than 50 mmBtu per hour and less than 250 mmBtu per hour, one of the following, as applicable:
NR 428.22(1)(a)4.a. a. If tangential-fired, 0.15 pound per mmBtu of heat input.
NR 428.22(1)(a)4.b. b. If wall-fired with a heat release rate equal to or greater than 17,000 Btu per cubic feet per hour, 0.17 pound per mmBtu of heat input.
NR 428.22(1)(a)4.c. c. If wall-fired with a heat release rate less than 17,000 Btu per cubic feet per hour, 0.15 pound per mmBtu of heat input.
NR 428.22(1)(a)4.d. d. If cyclone-fired, 0.15 pound per mmBtu of heat input.
NR 428.22(1)(a)4.e. e. If fluidized bed-fired, 0.10 pound per mmBtu of heat input.
NR 428.22(1)(a)4.f. f. If stoker-fired, 0.25 pound per mmBtu of heat input.
NR 428.22(1)(a)5. 5. For a gaseous fuel-fired boiler with a maximum heat input capacity equal to or greater than 100 mmBtu per hour, 0.08 pound per mmBtu of heat input.
NR 428.22(1)(a)6. 6. For a distillate fuel oil-fired boiler with a maximum heat input capacity equal to or greater than 100 mmBtu per hour, 0.10 pound per mmBtu of heat input.
NR 428.22(1)(a)7. 7. For a residual fuel oil-fired boiler with a maximum heat input capacity equal to or greater than 65 mmBtu per hour, 0.15 pound per mmBtu of heat input.
NR 428.22(1)(b) (b) Lime kilns. For a lime kiln with a maximum heat input capacity equal to or greater than 50 mmBtu per hour, one of the following as applicable:
NR 428.22(1)(b)1. 1. For a gaseous fuel-fired unit, 0.10 pound per mmBtu of heat input.
NR 428.22(1)(b)2. 2. For a distillate oil-fired unit, 0.12 pound per mmBtu of heat input.
NR 428.22(1)(b)3. 3. For a residual oil-fired unit, 0.15 pound per mmBtu of heat input.
NR 428.22(1)(b)4. 4. For a coal-fired unit, 0.60 pound per mmBtu of heat input.
NR 428.22(1)(b)5. 5. For a coke-fired unit, 0.70 pound per mmBtu of heat input.
NR 428.22(1)(c) (c) Reheat, annealing or galvanizing furnaces. For a reheat, annealing or galvanizing furnace with a maximum heat input capacity equal to or greater than 75 mmBtu per hour, 0.08 pounds per million Btu of heat input.
NR 428.22(1)(d) (d) Glass furnaces.
NR 428.22(1)(d)1.1. For a glass manufacturing furnace with a maximum heat input capacity equal to or greater than 50 mmBtu per hour, 2.0 pounds per ton of produced glass, except as provided in subd. 2.
NR 428.22(1)(d)2. 2. When, on a daily basis, a glass furnace is operated at less than 25% of glass production capacity, the owner or operator shall operate the furnace according to the combustion optimization requirements of s. NR 439.096 and shall meet the monitoring requirements of s. NR 428.05 (2) (e).
NR 428.22(1)(e) (e) Asphalt plants. For an asphalt plant with a maximum heat input capacity equal to or greater than 65 mmBtu per hour, one of the following as applicable:
NR 428.22(1)(e)1. 1. For a gaseous fuel-fired unit, 0.15 pound per million Btu of heat input.
NR 428.22(1)(e)2. 2. For a distillate fuel oil-fired unit, 0.20 pound per million Btu of heat input.
NR 428.22(1)(e)3. 3. For a residual fuel oil-fired or waste oil-fired unit, 0.27 pound per million Btu of heat input.
NR 428.22(1)(f) (f) Process heating. For a process heater, dryer, oven or other process heating device, one of the following as applicable:
NR 428.22(1)(f)1. 1. For a gaseous fuel-fired unit with a maximum heat input capacity equal to or greater than 100 mmBtu per hour, 0.10 pound per mmBtu of heat input.
NR 428.22(1)(f)2. 2. For a distillate oil-fired unit with a maximum heat input capacity equal to or greater than 100 mmBtu per hour, 0.12 pound per mmBtu of heat input.
NR 428.22(1)(f)3. 3. For a residual oil-fired unit with a maximum heat input capacity equal to or greater than 65 mmBtu per hour, 0.18 pound per mmBtu of heat input.
NR 428.22(1)(g) (g) Simple cycle combustion turbines. For a simple cycle combustion turbine, one of the following exhaust outlet concentrations, corrected to 15% O2 and at ambient temperatures greater than 0oF, as applicable:
NR 428.22(1)(g)1. 1. For a unit with a maximum design power output equal to or greater than 50 megawatts, one of the following, as applicable:
NR 428.22(1)(g)1.a. a. If natural gas-fired, 25 parts per million dry volume.
NR 428.22(1)(g)1.b. b. If distillate oil fuel-fired, 65 parts per million dry volume.
NR 428.22(1)(g)1.c. c. If biologically derived gaseous fuel-fired, 35 parts per million dry volume.
NR 428.22(1)(g)2. 2. For a unit with a maximum design power output equal to or greater than 25 megawatts and less than 50 megawatts, one of the following as applicable:
NR 428.22(1)(g)2.a. a. If natural gas-fired, 42 parts per million dry volume.
NR 428.22(1)(g)2.b. b. If distillate oil fuel-fired, 96 parts per million dry volume.
NR 428.22(1)(g)2.c. c. If biologically derived gaseous fuel-fired, 35 parts per million dry volume.
NR 428.22(1)(h) (h) Combined cycle combustion turbines. For a combined cycle combustion turbine, one of the following exhaust outlet concentrations, corrected to 15% O2 and at ambient temperatures greater than 0oF, as applicable:
NR 428.22(1)(h)1. 1. For a natural gas-fired unit with a maximum design power output equal to or greater than 25 megawatts, 9 parts per million dry volume.
NR 428.22(1)(h)2. 2. For a natural gas-fired unit with a maximum design power output equal to or greater than 10 megawatts and less than 25 megawatts, 42 parts per million dry volume.
NR 428.22(1)(h)3. 3. For a distillate oil fuel-fired unit with a maximum design power output equal to or greater than 10 megawatts, 42 parts per million dry volume.
NR 428.22(1)(h)4. 4. For a biologically derived gaseous fuel-fired unit with a maximum design power output equal to or greater than 10 megawatts, 35 parts per million dry volume.
NR 428.22(1)(i) (i) Reciprocating engines. For a reciprocating engine with a maximum design power output equal to or greater than 500 horsepower, one of the following as applicable:
NR 428.22(1)(i)1. 1. For a rich-burn spark ignition unit, 3.0 grams per brake horsepower-hour.
NR 428.22(1)(i)2. 2. For a lean-burn spark ignition unit, 3.0 grams per brake horsepower-hour.
NR 428.22(1)(i)3. 3. For a diesel fuel-fired compression unit, 3.0 grams per brake horsepower-hour.
NR 428.22(1)(i)4. 4. For a dual fuel-fired compression unit, 3.0 grams per brake horsepower-hour.
NR 428.22(2) (2) Electric utility boiler compliance schedule. The owner or operator of an electric utility boiler shall demonstrate compliance with the following interim NOx emission limitations, as applicable, on a 30-day rolling average by May 1, 2009 and with the emission limitations in sub. (1) (a) on and after May 1, 2013:
NR 428.22(2)(a) (a) For a solid fuel-fired boiler with a maximum heat input capacity equal to or greater than 1,000 mmBtu per hour, one of the following, as applicable:
NR 428.22(2)(a)1. 1. If tangential, wall, cyclone or fluidized bed-fired, 0.15 pound per mmBtu of heat input.
NR 428.22(2)(a)2. 2. If arch-fired, 0.18 pound per mmBtu of heat input.
NR 428.22(2)(b) (b) For a solid fuel-fired boiler with a maximum heat input capacity equal to or greater than 500 mmBtu per hour and less than 1,000 mmBtu per hour, one of the following, as applicable:
NR 428.22(2)(b)1. 1. If tangential-fired, 0.15 pound per mmBtu of heat input.
NR 428.22(2)(b)2. 2. If wall-fired, 0.20 pound per mmBtu of heat input.
NR 428.22(2)(b)3. 3. If cyclone-fired, 0.20 pound per mmBtu of heat input.
NR 428.22(2)(b)4. 4. If arch-fired, 0.18 pound per mmBtu of heat input.
NR 428.22(2)(b)5. 5. If fluidized bed-fired, 0.15 pound per mmBtu of heat input.
NR 428.22(3) (3)Emissions units using secondary fuel. An emissions unit that is capable of firing secondary fuel is not subject to the requirements under sub. (1) or (2) when utilizing only a secondary fuel if any of the following apply:
NR 428.22(3)(a) (a) The emissions unit heat input capacity or maximum design power output while utilizing the secondary fuel is less than the applicability thresholds under sub. (1) or (2).
NR 428.22(3)(b) (b) The emissions unit burns the secondary fuel only during any of the following periods:
NR 428.22(3)(b)1. 1. Supply interruption or curtailment of primary fuel. The secondary fuel usage under this subsection may not exceed 500 hours within a 12 consecutive month time period unless the owner or operator obtains a fuel variance under s. NR 436.06.
NR 428.22(3)(b)2. 2. Periodic testing, maintenance, or operator training of the secondary fuel when the periodic testing, maintenance, or operator training does not exceed a combined total of 48 hours during any calendar year.
NR 428.22(3)(c) (c) The secondary fuel constitutes less than 1 percent on an energy equivalent basis of the emissions unit's fuel consumption within the most recent 12 consecutive month time period.
NR 428.22 History History: CR 07-016: cr. Register July 2007 No. 619, eff. 8-1-07; CR 08-103: renum. (1) (d) to be (1) (d) 1. and am., cr. (1) (d) 2., am. (2) (intro.) Register August 2009 No. 644, eff. 9-1-09; CR 23-017: am. (1) (intro.), cr. (3) Register March 2024 No. 819, eff. 4-1-24.
NR 428.23 NR 428.23Demonstrating compliance with emission limitations. The owner or operator of an emissions unit shall determine the emissions unit's NOx emissions and shall determine compliance with the emission limitations in s. NR 428.22 according to the applicable methods in this section.
NR 428.23(1) (1) Emissions monitoring requirements.
NR 428.23(1)(a) (a) Installation and operation. No later than April 1, 2009 or April 1 of the year an emissions unit first becomes subject to an emission limitation in s. NR 428.22, the owner or operator of the emissions unit shall do the following:
NR 428.23(1)(a)1. 1. Submit to the department in writing, a certification of the installation and operation of all monitoring systems or a certification of the completion of initial emission performance tests required under par. (b).
NR 428.23(1)(a)2. 2. Begin and continue to monitor, measure and record all data necessary to determine emissions in the measurement units of the applicable emission limitation according to the methods of this section.
NR 428.23(1)(b) (b) Monitoring s ystems and procedures.
NR 428.23(1)(b)1.1. `Part 75 continuous emissions monitoring.' The owner or operator of an electric utility boiler or combustion turbine that is subject to or becomes subject to the requirements of 40 CFR part 75 and 40 CFR part 75, Appendices A to I, incorporated by reference in s. NR 484.04 (27), shall use those monitoring methods and specifications for monitoring NOx emissions for purposes of this subsection.
NR 428.23(1)(b)2. 2. `Continuous emissions monitoring.' Except as provided in subd. 1., the owner or operator of an emissions unit subject to an emissions limitation in s. NR 428.22 (1) (a) to (d) shall monitor NOx emissions for requirements of this subsection according to the following specifications, as applicable:
NR 428.23(1)(b)2.a. a. The owner or operator shall install and operate a continuous emissions monitoring system that measures the hourly average NOx emission rate.
NR 428.23(1)(b)2.b. b. The emissions monitoring system shall consist of an NOx diluent continuous emissions analyzer and, as applicable, an O 2 or CO2 diluent continuous emissions analyzer to correct all emissions data and heat rate values for the emissions unit to the same moisture and diluent gas basis, as required in subd. 6. b.
NR 428.23(1)(b)2.c. c. The owner or operator shall calibrate, maintain and operate the emissions monitoring system according to the requirements of s. NR 439.09 (9), the applicable operating requirements of 40 CFR 60.13, the performance specifications in 40 CFR part 60, Appendix B, incorporated by reference in s. NR 484.04 (21) and the quality assurance procedures of 40 CFR part 60, Appendix F, incorporated by reference in s. NR 484.04 (21m).
NR 428.23(1)(b)2.d. d. For an emissions unit subject to an NOx emission limit on a pound per million Btu basis, the emissions shall be determined using the F-factor method according to methods in Method 19 of 40 CFR part 60, Appendix A, incorporated by reference in s. NR 484.04 (16m).
NR 428.23(1)(b)2.e. e. Except for an emissions unit subject to subd. 1. or an emissions unit subject to an emission limitation in s. NR 428.22 (1) (a) 1. to 4., an owner or operator of an emissions unit may measure NOx emissions for compliance determination purposes using continuous parametric monitoring methods meeting emissions monitoring specifications in 40 CFR part 75, Appendix E, incorporated by reference in s. NR 484.04 (26m) (cm).
NR 428.23(1)(b)3. 3. `Periodic emissions performance test.' Except as provided in subd. 1., the owner or operator of an emissions unit subject to s. NR 428.22 (1) (e) to (i) shall conduct an initial performance test and a subsequent performance test every 2 years thereafter, according to the following requirements, as applicable, to determine the emissions unit's NOx emission rate for each fuel fired in the emissions unit. A performance test is not required for a fuel used only for startup or for a fuel constituting less than 1% of the unit's annual fuel consumption.
NR 428.23(1)(b)3.a. a. The emissions performance test shall be conducted according to one of the following methods as applicable: Method 7, 7A, 7B, 7C, 7D or 7E in 40 CFR part 60, Appendix A, incorporated by reference in s. NR 484.04 (15m).
NR 428.23(1)(b)3.b. b. Except for units specified in subd. 3. c., the initial emissions performance test shall include a determination of the capacity load point of the unit's maximum NOx emissions rate based on one 30 minute test run at each capacity load point for which the unit is operated, other than for startup and shutdown, in the load ranges of 20 to 30%, 45 to 55%, 70 to 80% and 90 to 100%.
NR 428.23(1)(b)3.c. c. The emissions performance tests for emissions units subject to s. NR 428.22 (1) (g) or (h) shall be conducted within 10% of full load operation.
NR 428.23(1)(b)3.d. d. The emissions performance test shall determine compliance based on the average of 3 60-minute test runs performed at the capacity load specified in subd. 3. b. or c.
NR 428.23(1)(b)3.e. e. An additional performance test shall be conducted according to subd. 3. b. or c. within 90 days of completing an equipment modification or change in fuel which has the potential to increase the NOx emissions concentration or rate.
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.