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 Code of Federal Regulations (Last Updated: May 6, 2024)
 Title 40 - Protection of Environment
 Chapter I - Environmental Protection Agency
 SubChapter C - Air Programs
 Part 63 - National Emission Standards for Hazardous Air Pollutants for Source Categories
 Subpart UUUUU - National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units

  Table 2 to Subpart UUUUU of Part 63 - Emission Limits for Existing EGUs  

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  • 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 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 3 or Method 320 at appendix A to part 63 of this chapter, sample for a minimum of 1 hour.
    OR
    Sulfur dioxide (SO2) 4 2.0E-1 lb/MMBtu or 1.5E0 lb/MWh SO2 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 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 3 or Method 320, sample for a minimum of 1 hour.
    OR
    Sulfur dioxide (SO2) 4 2.0E-1 lb/MMBtu or 1.5E0 lb/MWh SO2 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 Collect a minimum of 1 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 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 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 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 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 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 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 3 or Method 320, sample for a minimum of 1 hour.
    OR
    Sulfur dioxide (SO2) 4 3.0E-1 lb/MMBtu or 2.0E0 lb/MWh SO2 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 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 3 or Method 320 at appendix A to part 63 of this chapter, sample for a minimum of 1 hour.
    OR
    Sulfur dioxide (SO2) 4 6E-1 lb/MMBtu or 9E0 lb/MWh SO2 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 SO2 limit if your EGU does not have some form of FGD system and SO2 CEMS installed.

    [85 FR 20850, Apr. 15, 2020]