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Oklahoma Administrative Code (Last Updated: March 11, 2021) |
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TITLE 252. Department of Environmental Quality |
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Chapter 100. Air Pollution Control |
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Subchapter 33. Control of Emission of Nitrogen Oxides |
SECTION 252:100-33-2. Emission limits
Latest version.
- (a) Fuel-burning equipment subject to this subchapter shall meet the following emission limitations except as provided in OAC 252:100-33-1.2(b) and 252:100-33-2(b).(1) Gas-fired fuel-burning equipment. Emissions of nitrogen oxides (calculated as nitrogen dioxide) from any new gas-fired fuel-burning equipment shall not exceed 0.20 lb/MMBTU (86 ng/J) heat input, three-hour average.(2) Liquid-fired fuel-burning equipment. Emissions of nitrogen oxides (calculated as nitrogen dioxide) from any new liquid-fired fuel-burning equipment shall not exceed 0.30 lb/MMBTU (129 ng/J) heat input, three-hour average.(3) Solid fossil fuel-burning equipment. Emissions of nitrogen oxides (calculated as nitrogen dioxide) from any new solid fossil fuel-burning equipment shall not exceed 0.70 lb/MMBTU (300 ng/J) heat input, three-hour average.(4) Combination of fuels burned. When different types of fuels are burned simultaneously in any combination, the NOx standard (calculated as nitrogen dioxide in lb/MMBTU heat input, three-hour average) for the fuel-burning equipment shall be determined by proration unless a secondary fuel is used in de minimis quantities (less than 5% of total BTU input annually). Compliance shall be determined using the following formula where X is the percent of total heat input derived from gaseous fuel, Y is the percent of total heat input derived from liquid fuel, and Z is the percent of total heat input derived from solid fuel: NO2 limit = 0.2X + 0.3Y + 0.7Z /(X + Y + Z).(b) If fuel-burning equipment, due to technological limitations, cannot meet the requirements of OAC 252:100-33-2(a) during startup and/or shutdown, the fuel-burning equipment shall comply with BACT for startup and/or shutdown as contained in a currently applicable Air Quality Division permit. The NOX emissions during startup and/or shutdown of this equipment shall not cause or contribute to an exceedance of any NAAQS or PSD increment. Approval of technological limitations by the Director in an Air Quality Division permit does not mean automatic approval by the EPA.