If an EGU subject to the boiler rules increases its electrical output and meets the definition, it would be subject to the Utility NESHAP for the 6-month period after the unit meets the definition of an EGU. U.S. EPA is soliciting comments on this issue. Compliance Dates (§63.9984): New or reconstructed, you must comply by May 3, 2011 or upon start-up, whichever is later Existing EGUs, you must comply by May 3, 2014 Subcategories of EGUs (§63.9990): If an EGU burns coal or any combination of coal with another fuel, the unit is in a coal-fired unit subcategory designated as: EGUs designed for coal ≥ 8,300 Btu/lb EGUs designed for coal < 8,300 Btu/lb If an EGU burns only oil or any combination of oil with another fuel other than coal, the unit is in the oil-fired unit subcategory designated as: EGUs designed to burn liquid oil EGUs designed to burn solid oil-derived fuel IGCC units combusting either gasified coal or gasified solid oil-derived fuel Emission Limits (§63.9991): Table 1. Proposed emission limits for existing sources Subcategory Total Total HAP Hydrogen Mercury (Hg) Hydrogen particulate metals chloride (HCl) fluoride matter (PM) (HF) Coal fired unit 0.030 N/A 0.0020 1.0 lb/TBtu N/A designed for lb/MMBtu lb/MMBtu coal 8,300 ≥ Btu/lb Coal fired unit 0.030 N/A 0.0020 4.0 lb/TBtu N/A designed for lb/MMBtu lb/MMBtu coal < 8,300 Btu/hr IGCC 0.050 N/A 0.00050 3.0 lb/TBtu N/A lb/MMBtu lb/MMBtu Solid 0.20 lb/MMBtu N/A 0.0050 0.20 lb/TBtu N/A derived lb/MMBtu Liquid oil-fired N/A 0.000030 0.00030 N/A 0.00020 unit lb/MMBtu lb/MMBtu lb/MMBtu
If an EGU subject to the boiler rules increases its electrical output and meets the definition, it would be subject to the Utility NESHAP for the 6-month period after the unit meets the definition of an EGU. U.S. EPA is soliciting comments on this issue. Compliance Dates (§63.9984): New or reconstructed, you must comply by May 3, 2011 or upon start-up, whichever is later Existing EGUs, you must comply by May 3, 2014 Subcategories of EGUs (§63.9990): If an EGU burns coal or any combination of coal with another fuel, the unit is in a coal-fired unit subcategory designated as: EGUs designed for coal ≥ 8,300 Btu/lb EGUs designed for coal < 8,300 Btu/lb If an EGU burns only oil or any combination of oil with another fuel other than coal, the unit is in the oil-fired unit subcategory designated as: EGUs designed to burn liquid oil EGUs designed to burn solid oil-derived fuel IGCC units combusting either gasified coal or gasified solid oil-derived fuel Emission Limits (§63.9991): Table 1. Proposed emission limits for existing sources Subcategory Total particulate matter (PM) Total HAP metals Hydrogen chloride (HCl) Mercury (Hg) Hydrogen fluoride (HF) Coal fired unit designed for coal ≥ 8,300 Btu/lb 0.030 lb/MMBtu N/A 0.0020 lb/MMBtu 1.0 lb/TBtu N/A Coal fired unit designed for coal < 8,300 Btu/hr 0.030 lb/MMBtu N/A 0.0020 lb/MMBtu 4.0 lb/TBtu N/A IGCC 0.050 lb/MMBtu N/A 0.00050 lb/MMBtu 3.0 lb/TBtu N/A Solid 0.20 lb/MMBtu N/A 0.0050 lb/MMBtu 0.20 lb/TBtu N/A Liquid oil-fired unit N/A 0.000030 lb/MMBtu 0.00030 lb/MMBtu N/A 0.00020 lb/MMBtu derived
Proposed%20Utility%20MACT%20Rule%20Summary.docx