Outdated Standard Exemptions 1-6, January 11, 1985
Clicking on a highlighted number below links you to the standard exemption.1 | 2 | 3 | 4 | 5 | 6
1. Any facility constructed and operated at a domestic residence for domestic use.
2. Dual-chambered incinerators with a burner in the secondary chamber that maintains a temperature of 1200 degrees F or higher in the secondary chamber and with a burning capacity equal to or less than 1000 pounds per hour for Type 0, Type 1 and Type 2 waste only and which meet the following conditions. Types of waste are defined by the U.S. Environmental Protection Agency in Field Operations and Enforcement Manual for Air Pollution Control, Volume II, APTD-1101.
- Operating instructions must be posted at the incinerator.
- Fuel shall be sweet natural gas, LP gas or No. 2 fuel oil with less than 0.5% sulfur by weight.
3. Combustion units designed for comfort heating purposes employing LP gas or natural gas as a fuel.
4. Comfort air conditioning systems or comfort ventilating systems which are not used to remove air contaminants generated by or released from specific units of equipment.
5. IC engine driven compressors, IC engine driven electric generator sets and IC engine driven water pumps, and equipment components for gas dehydration units, gas-oil separators, free water knockouts, iron sponge units, production tank batteries and natural gas liquids separation plants used only for emergency replacement or standby services provided that:
- There will be no increase in emissions resulting from the operation.
- If not previously permitted the emissions meet the applicable emission abatement and emission rate requirements of Condition (2) of Standard Exemption No. 6 or Standard Exemption Nos. 63, 64, 66, 79, 87, 88 or 89.
- Notification requirements of Standard Exemption Nos. 6, 63 and 89 are met.
- Replacement of equipment conponents at permitted facilities must comply with permit amendment or permit revision procedures.
6. Gas or liquid fuel fired stationary internal combustion engines or gas turbines, provided that all proposed engines and turbines satisfy all the following conditions:
- Within 10 days after construction of the facility begins, it shall be registered with Form PI-7, including applicable information demonstrating compliance with (2) below and information concerning the air quality in the area of the proposed facility. [See (2) and (3) below]. Engines smaller than 240 horsepower need not be registered.
- The emissions of NOx (NO plus NO2) are no more than 5.0 grams per horsepower-hour for any such engine or turbine purchased new after September 23, 1982, and rated at 825 horsepower or more. Documentation of purchase date is required. For facilities which use catalytic converters to achieve compliance with the NOx limitation, the owner or operator shall submit and implement monitoring and/or testing plans sufficient to ensure that (a) the oxygen content in the stack exhaust is maintained at or lower than a value consistent with stoichiometric combustion and (b) catalyst degradation does not result in NOx emissions greater than 5.0 grams per horsepower-hour. Monitoring and testing results shall be made available to the Agency upon request.
- There will be no existing or projected violations of any NAAQS in the area of the proposed facility. Compliance with this condition shall be demonstrated by one of the following three methods:
Unless otherwise documented by actual test data, the following NO2/NOx ratios shall be used for modeling NO2 NAAQS:
|Device||NOx Emis. Rate (Q) gm/hp-hr||NO2/NOx Ratio|
|IC Engine||Less than 2.0||0.4|
|IC Engine||2.0 thru 10.0||0.15 + (0.5/Q)|
|IC Engine||Greater than 10.0||0.2|
|IC Engine with catalytic converter||0.85|
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