Emission Limits for Existing EGUs

As stated in § 63.9991, you must comply with the following applicable emission limits: 1 Table 2 to Subpart UUUUU of Part 63—Emission Limits for Existing EGUs [As stated in § 63.9991, you must comply with the following applicable emission limits 1 ] If your EGU is in this subcategory . . . For the following pollutants . . . You must meet the following emission limits and work practice standards . . . Using these requirements, as appropriate ( e.g. , specified sampling volume or test run duration) and limitations with the test methods in table 5 to this subpart . . . 1. Coal-fired unit not low rank virgin coal a. Filterable particulate matter (PM) 3.0E-2 lb/MMBtu or 3.0E-1 lb/MWh 2 Before July 6, 2027: Collect a minimum of 1 dscm per run. On or after July 6, 2027: Collect a minimum catch of 6.0 milligrams or a minimum sample volume of 4 dscm per run if using PM CEMS for compliance. For all other compliance demonstration options, collect a minimum of 1 dscm per run. OR OR Total non-Hg HAP metals 5.0E-5 lb/MMBtu or 5.0E-1 lb/GWh Collect a minimum of 1 dscm per run. OR OR Individual HAP metals: Collect a minimum of 3 dscm per run. Antimony (Sb) 8.0E-1 lb/TBtu or 8.0E-3 lb/GWh Arsenic (As) 1.1E0 lb/TBtu or 2.0E-2 lb/GWh Beryllium (Be) 2.0E-1 lb/TBtu or 2.0E-3 lb/GWh Cadmium (Cd) 3.0E-1 lb/TBtu or 3.0E-3 lb/GWh Chromium (Cr) 2.8E0 lb/TBtu or 3.0E-2 lb/GWh Cobalt (Co) 8.0E-1 lb/TBtu or 8.0E-3 lb/GWh Lead (Pb) 1.2E0 lb/TBtu or 2.0E-2 lb/GWh Manganese (Mn) 4.0E0 lb/TBtu or 5.0E-2 lb/GWh Nickel (Ni) 3.5E0 lb/TBtu or 4.0E-2 lb/GWh Selenium (Se) 5.0E0 lb/TBtu or 6.0E-2 lb/GWh b. Hydrogen chloride (HCl) 2.0E-3 lb/MMBtu or 2.0E-2 lb/MWh For Method 26A at appendix A-8 to part 60 of this chapter, collect a minimum of 0.75 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320 at appendix A to part 63 of this chapter, sample for a minimum of 1 hour. OR Sulfur dioxide (SO 2 ) 4 2.0E-1 lb/MMBtu or 1.5E0 lb/MWh SO 2 CEMS. c. Mercury (Hg) 1.2E0 lb/TBtu or 1.3E-2 lb/GWh LEE Testing for 30 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B at appendix A-8 to part 60 of this chapter run or Hg CEMS or sorbent trap monitoring system only. OR 1.0E0 lb/TBtu or 1.1E-2 lb/GWh LEE Testing for 90 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B run or Hg CEMS or sorbent trap monitoring system only. 2. Coal-fired unit low rank virgin coal a. Filterable particulate matter (PM) 3.0E-2 lb/MMBtu or 3.0E-1 lb/MWh 2 Before July 6, 2027: Collect a minimum of 1 dscm per run. On or after July 6, 2027: Collect a minimum catch of 6.0 milligrams or a minimum sample volume of 4 dscm per run if using PM CEMS for compliance demonstration. For all other compliance demonstration options, collect a minimum of 1 dscm per run. OR OR Total non-Hg HAP metals 5.0E-5 lb/MMBtu or 5.0E-1 lb/GWh Collect a minimum of 1 dscm per run. OR OR Individual HAP metals: Collect a minimum of 3 dscm per run. Antimony (Sb) 8.0E-1 lb/TBtu or 8.0E-3 lb/GWh Arsenic (As) 1.1E0 lb/TBtu or 2.0E-2 lb/GWh Beryllium (Be) 2.0E-1 lb/TBtu or 2.0E-3 lb/GWh Cadmium (Cd) 3.0E-1 lb/TBtu or 3.0E-3 lb/GWh Chromium (Cr) 2.8E0 lb/TBtu or 3.0E-2 lb/GWh Cobalt (Co) 8.0E-1 lb/TBtu or 8.0E-3 lb/GWh Lead (Pb) 1.2E0 lb/TBtu or 2.0E-2 lb/GWh Manganese (Mn) 4.0E0 lb/TBtu or 5.0E-2 lb/GWh Nickel (Ni) 3.5E0 lb/TBtu or 4.0E-2 lb/GWh Selenium (Se) 5.0E0 lb/TBtu or 6.0E-2 lb/GWh b. Hydrogen chloride (HCl) 2.0E-3 lb/MMBtu or 2.0E-2 lb/MWh For Method 26A, collect a minimum of 0.75 dscm per run; for Method 26 at appendix A-8 to part 60 of this chapter, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320, sample for a minimum of 1 hour. OR Sulfur dioxide (SO 2 ) 4 2.0E-1 lb/MMBtu or 1.5E0 lb/MWh SO 2 CEMS. c. Mercury (Hg) 4.0E0 lb/TBtu or 4.0E-2 lb/GWh LEE Testing for 30 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B run or Hg CEMS or sorbent trap monitoring system only. 3. IGCC unit a. Filterable particulate matter (PM) 4.0E-2 lb/MMBtu or 4.0E-1 lb/MWh 2 Before July 6, 2027: Collect a minimum of 1 dscm per run. On or after July 6, 2027: Collect a minimum catch of 3.0 milligrams or a minimum sample volume of 2 dscm per run. OR OR Total non-Hg HAP metals 6.0E-5 lb/MMBtu or 5.0E-1 lb/GWh Collect a minimum of 1 dscm per run. OR OR Individual HAP metals: Collect a minimum of 2 dscm per run. Antimony (Sb) 1.4E0 lb/TBtu or 2.0E-2 lb/GWh Arsenic (As) 1.5E0 lb/TBtu or 2.0E-2 lb/GWh Beryllium (Be) 1.0E-1 lb/TBtu or 1.0E-3 lb/GWh Cadmium (Cd) 1.5E-1 lb/TBtu or 2.0E-3 lb/GWh Chromium (Cr) 2.9E0 lb/TBtu or 3.0E-2 lb/GWh Cobalt (Co) 1.2E0 lb/TBtu or 2.0E-2 lb/GWh Lead (Pb) 1.9E+2 lb/TBtu or 1.8E0 lb/GWh Manganese (Mn) 2.5E0 lb/TBtu or 3.0E-2 lb/GWh Nickel (Ni) 6.5E0 lb/TBtu or 7.0E-2 lb/GWh Selenium (Se) 2.2E+1 lb/TBtu or 3.0E-1 lb/GWh b. Hydrogen chloride (HCl) 5.0E-4 lb/MMBtu or 5.0E-3 lb/MWh For Method 26A, collect a minimum of 1 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320, sample for a minimum of 1 hour. c. Mercury (Hg) 2.5E0 lb/TBtu or 3.0E-2 lb/GWh LEE Testing for 30 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B run or Hg CEMS or sorbent trap monitoring system only. 4. Liquid oil-fired unit—continental (excluding limited-use liquid oil-fired subcategory units) a. Filterable particulate matter (PM) 3.0E-2 lb/MMBtu or 3.0E-1 lb/MWh 2 Collect a minimum of 1 dscm per run. OR OR Total HAP metals 8.0E-4 lb/MMBtu or 8.0E-3 lb/MWh Collect a minimum of 1 dscm per run. OR OR Individual HAP metals: Collect a minimum of 1 dscm per run. Antimony (Sb) 1.3E+1 lb/TBtu or 2.0E-1 lb/GWh Arsenic (As) 2.8E0 lb/TBtu or 3.0E-2 lb/GWh Beryllium (Be) 2.0E-1 lb/TBtu or 2.0E-3 lb/GWh Cadmium (Cd) 3.0E-1 lb/TBtu or 2.0E-3 lb/GWh Chromium (Cr) 5.5E0 lb/TBtu or 6.0E-2 lb/GWh Cobalt (Co) 2.1E+1 lb/TBtu or 3.0E-1 lb/GWh Lead (Pb) 8.1E0 lb/TBtu or 8.0E-2 lb/GWh Manganese (Mn) 2.2E+1 lb/TBtu or 3.0E-1 lb/GWh Nickel (Ni) 1.1E+2 lb/TBtu or 1.1E0 lb/GWh Selenium (Se) 3.3E0 lb/TBtu or 4.0E-2 lb/GWh Mercury (Hg) 2.0E-1 lb/TBtu or 2.0E-3 lb/GWh For Method 30B sample volume determination (Section 8.2.4), the estimated Hg concentration should nominally be < 1 ⁄ 2 the standard. b. Hydrogen chloride (HCl) 2.0E-3 lb/MMBtu or 1.0E-2 lb/MWh For Method 26A, collect a minimum of 1 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320, sample for a minimum of 1 hour. c. Hydrogen fluoride (HF) 4.0E-4 lb/MMBtu or 4.0E-3 lb/MWh For Method 26A, collect a minimum of 1 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320, sample for a minimum of 1 hour. 5. Liquid oil-fired unit—non-continental (excluding limited-use liquid oil-fired subcategory units) a. Filterable particulate matter (PM) 3.0E-2 lb/MMBtu or 3.0E-1 lb/MWh 2 Collect a minimum of 1 dscm per run. OR OR Total HAP metals 6.0E-4 lb/MMBtu or 7.0E-3 lb/MWh Collect a minimum of 1 dscm per run. OR OR Individual HAP metals: Collect a minimum of 2 dscm per run. Antimony (Sb) 2.2E0 lb/TBtu or 2.0E-2 lb/GWh Arsenic (As) 4.3E0 lb/TBtu or 8.0E-2 lb/GWh Beryllium (Be) 6.0E-1 lb/TBtu or 3.0E-3 lb/GWh Cadmium (Cd) 3.0E-1 lb/TBtu or 3.0E-3 lb/GWh Chromium (Cr) 3.1E+1 lb/TBtu or 3.0E-1 lb/GWh Cobalt (Co) 1.1E+2 lb/TBtu or 1.4E0 lb/GWh Lead (Pb) 4.9E0 lb/TBtu or 8.0E-2 lb/GWh Manganese (Mn) 2.0E+1 lb/TBtu or 3.0E-1 lb/GWh Nickel (Ni) 4.7E+2 lb/TBtu or 4.1E0 lb/GWh Selenium (Se) 9.8E0 lb/TBtu or 2.0E-1 lb/GWh Mercury (Hg) 4.0E-2 lb/TBtu or 4.0E-4 lb/GWh For Method 30B sample volume determination (Section 8.2.4), the estimated Hg concentration should nominally be < 1 ⁄ 2 the standard. b. Hydrogen chloride (HCl) 2.0E-4 lb/MMBtu or 2.0E-3 lb/MWh For Method 26A, collect a minimum of 1 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320, sample for a minimum of 2 hours. c. Hydrogen fluoride (HF) 6.0E-5 lb/MMBtu or 5.0E-4 lb/MWh For Method 26A, collect a minimum of 3 dscm per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320, sample for a minimum of 2 hours. 6. Solid oil-derived fuel-fired unit a. Filterable particulate matter (PM) 8.0E-3 lb/MMBtu or 9.0E-2 lb/MWh 2 Before July 6, 2027: Collect a minimum of 1 dscm per run. On or after July 6, 2027: Collect a minimum catch of 6.0 milligrams or a minimum sample volume of 4 dscm per run if using PM CEMS for compliance. For all other compliance demonstration options, collect a minimum of 1 dscm per run. OR OR Total non-Hg HAP metals 4.0E-5 lb/MMBtu or 6.0E-1 lb/GWh Collect a minimum of 1 dscm per run. OR OR Individual HAP metals: Collect a minimum of 3 dscm per run. Antimony (Sb) 8.0E-1 lb/TBtu or 7.0E-3 lb/GWh Arsenic (As) 3.0E-1 lb/TBtu or 5.0E-3 lb/GWh Beryllium (Be) 6.0E-2 lb/TBtu or 5.0E-4 lb/GWh Cadmium (Cd) 3.0E-1 lb/TBtu or 4.0E-3 lb/GWh Chromium (Cr) 8.0E-1 lb/TBtu or 2.0E-2 lb/GWh Cobalt (Co) 1.1E0 lb/TBtu or 2.0E-2 lb/GWh Lead (Pb) 8.0E-1 lb/TBtu or 2.0E-2 lb/GWh Manganese (Mn) 2.3E0 lb/TBtu or 4.0E-2 lb/GWh Nickel (Ni) 9.0E0 lb/TBtu or 2.0E-1 lb/GWh Selenium (Se) 1.2E0 lb/Tbtu or 2.0E-2 lb/GWh b. Hydrogen chloride (HCl) 5.0E-3 lb/MMBtu or 8.0E-2 lb/MWh For Method 26A, collect a minimum of 0.75 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320, sample for a minimum of 1 hour. OR Sulfur dioxide (SO 2 ) 4 3.0E-1 lb/MMBtu or 2.0E0 lb/MWh SO 2 CEMS. c. Mercury (Hg) 2.0E-1 lb/TBtu or 2.0E-3 lb/GWh LEE Testing for 30 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B run or Hg CEMS or sorbent trap monitoring system only. 7. Eastern Bituminous Coal Refuse (EBCR)-fired unit a. Filterable particulate matter (PM) 3.0E-2 lb/MMBtu or 3.0E-1 lb/MWh 2 Before July 6, 2027: Collect a minimum of 1 dscm per run. On or after July 6, 2027: Collect a minimum catch of 6.0 milligrams or a minimum sample volume of 4 dscm per run if using PM CEMS for compliance. For all other compliance demonstration options, collect a minimum of 1 dscm per run. OR OR Total non-Hg HAP metals 5.0E-5 lb/MMBtu or 5.0E-1 lb/GWh Collect a minimum of 1 dscm per run. OR OR Individual HAP metals: Collect a minimum of 3 dscm per run. Antimony (Sb) 8.0E-1 lb/TBtu or 8.0E-3 lb/GWh Arsenic (As) 1.1E0 lb/TBtu or 2.0E-2 lb/GWh Beryllium (Be) 2.0E-1 lb/TBtu or 2.0E-3 lb/GWh Cadmium (Cd) 3.0E-1 lb/TBtu or 3.0E-3 lb/GWh Chromium (Cr) 2.8E0 lb/TBtu or 3.0E-2 lb/GWh Cobalt (Co) 8.0E-1 lb/TBtu or 8.0E-3 lb/GWh Lead (Pb) 1.2E0 lb/TBtu or 2.0E-2 lb/GWh Manganese (Mn) 4.0E0 lb/TBtu or 5.0E-2 lb/GWh Nickel (Ni) 3.5E0 lb/TBtu or 4.0E-2 lb/GWh Selenium (Se) 5.0E0 lb/TBtu or 6.0E-2 lb/GWh b. Hydrogen chloride (HCl) 4.0E-2 lb/MMBtu or 4.0E-1 lb/MWh For Method 26A at appendix A-8 to part 60 of this chapter, collect a minimum of 0.75 dscm per run; for Method 26, collect a minimum of 120 liters per run. For ASTM D6348-03 (Reapproved 2010) 3 or Method 320 at appendix A to part 63 of this chapter, sample for a minimum of 1 hour. OR Sulfur dioxide (SO 2 ) 4 6E-1 lb/MMBtu or 9E0 lb/MWh SO 2 CEMS. c. Mercury (Hg) 1.2E0 lb/TBtu or 1.3E-2 lb/GWh LEE Testing for 30 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B at appendix A-8 to part 60 of this chapter run or Hg CEMS or sorbent trap monitoring system only. OR 1.0E0 lb/TBtu or 1.1E-2 lb/GWh LEE Testing for 90 days with a sampling period consistent with that given in section 5.2.1 of appendix A to this subpart per Method 30B run or Hg CEMS or sorbent trap monitoring system only. 1 For LEE emissions testing for total PM, total HAP metals, individual HAP metals, HCl, and HF, the required minimum sampling volume must be increased nominally by a factor of 2. 2 Gross output. 3 Incorporated by reference, see § 63.14. 4 You may not use the alternate SO 2 limit if your EGU does not have some form of FGD system and SO 2 CEMS installed. [85 FR 20850, Apr. 15, 2020, as amended at 89 FR 38571, May 7, 2024; 91 FR 9117, Feb. 24, 2026]