Wis. Admin. Code NR 428.22

Emission limitation requirements

Year: 2026Length: 1,177 wordsOfficial source

Cite as Wis. Admin. Code NR § 428.22

Emission limitation requirements. (1) Emission limits. Except as provided under subs. (2) and (3) , on or after May 1, 2009, no person may cause, allow, or permit NO X to be emitted in excess of the following emission limitations on a 30-day rolling average basis: (a) Boilers. 1. 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: a. If tangential, wall, cyclone or fluidized bed-fired, 0.10 pound per mmBtu of heat input. b. If arch-fired, 0.18 pound per mmBtu of heat input. 2. 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: a. If tangential-fired, 0.15 pound per mmBtu of heat input. 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. 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. d. If cyclone-fired, 0.15 pound per mmBtu of heat input. e. If arch-fired, 0.18 pound per mmBtu of heat input. f. If fluidized bed-fired, 0.10 pound per mmBtu of heat input. 3. For a solid fuel-fired boiler with a maximum heat input capacity equal to or greater than 250 mmBtu per hour and less than 500 mmBtu per hour, one of the following, as applicable: a. If tangential-fired, 0.15 pound per mmBtu of heat input. 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. 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. d. If cyclone-fired, 0.15 pound per mmBtu of heat input. f. If arch-fired, 0.18 pound per mmBtu of heat input. g. If fluidized bed-fired, 0.10 pound per mmBtu of heat input. h. If stoker-fired, 0.20 pound per mmBtu of heat input. 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: a. If tangential-fired, 0.15 pound per mmBtu of heat input. 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. 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. d. If cyclone-fired, 0.15 pound per mmBtu of heat input. e. If fluidized bed-fired, 0.10 pound per mmBtu of heat input. f. If stoker-fired, 0.25 pound per mmBtu of heat input. 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. 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. 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. (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: 1. For a gaseous fuel-fired unit, 0.10 pound per mmBtu of heat input. 2. For a distillate oil-fired unit, 0.12 pound per mmBtu of heat input. 3. For a residual oil-fired unit, 0.15 pound per mmBtu of heat input. 4. For a coal-fired unit, 0.60 pound per mmBtu of heat input. 5. For a coke-fired unit, 0.70 pound per mmBtu of heat input. (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. (d) Glass furnaces. 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. 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) . (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: 1. For a gaseous fuel-fired unit, 0.15 pound per million Btu of heat input. 2. For a distillate fuel oil-fired unit, 0.20 pound per million Btu of heat input. 3. For a residual fuel oil-fired or waste oil-fired unit, 0.27 pound per million Btu of heat input. (f) Process heating. For a process heater, dryer, oven or other process heating device, one of the following as applicable: 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. 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. 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. (g) Simple cycle combustion turbines. For a simple cycle combustion turbine, one of the following exhaust outlet concentrations, corrected to 15% O 2 and at ambient temperatures greater than 0 o F, as applicable: 1. For a unit with a maximum design power output equal to or greater than 50 megawatts, one of the following, as applicable: a. If natural gas-fired, 25 parts per million dry volume. b. If distillate oil fuel-fired, 65 parts per million dry volume. c. If biologically derived gaseous fuel-fired, 35 parts per million dry volume. 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: a. If natural gas-fired, 42 parts per million dry volume. b. If distillate oil fuel-fired, 96 parts per million dry volume. c. If biologically derived gaseous fuel-fired, 35 parts per million dry volume. (h) Combined cycle combustion turbines. For a combined cycle combustion turbine, one of the following exhaust outlet concentrations, corrected to 15% O 2 and at ambient temperatures greater than 0 o F, as applicable: 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.
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