b. Hydrogen chloride     4.0E-4 lb/MWh..........  For Method 26A, collect
                                        (HC1).                                            a minimum of 3 dscm
                                                                                per run.
                                                                                For ASTM D6348-03 2 or
                                                                                Method 320, sample for
                                                                                a minimum of 1 hour.
                                       OR.
                                       Sulfur dioxide (SO2) 3.  4.0E-1 lb/MWh..........  SO2 CEMS.
                                       c. Mercury (Hg)........  2.0E-4 lb/GWh..........  Hg CEMS or sorbent trap
                                                                                monitoring system
                                                                                only.
----------------------------------------------------------------------------------------------------------------
2. Coal-fired units low rank virgin    a. Filterable            7.0E-3 lb/MWh1.........  Collect a minimum of 4
 coal.                                  particulate matter                                dscm per run.
                                        (PM).
                                       OR                       OR                       .......................
                                       Total non-Hg HAP metals  6.0E-2 lb/GWh..........  Collect a minimum of 4
                                                                                dscm per run.
                                       OR                       OR                       .......................
                                       Individual HAP metals:   .......................  Collect a minimum of 3
                                                                                dscm per run.
                                       Antimony (Sb)..........  8.0E-3 lb/GWh.
                                       Arsenic (As)...........  3.0E-3 lb/GWh.

                                       Beryllium (Be).........  6.0E-4 lb/GWh.
                                       Cadmium (Cd)...........  4.0E-4 lb/GWh.
                                       Chromium (Cr)..........  7.0E-3 lb/GWh.
                                       Cobalt (Co)............  2.0E-3 lb/GWh.
                                       Lead (Pb)..............  2.0E-3 lb/GWh.
                                       Manganese (Mn).........  4.0E-3 lb/GWh.
                                       Nickel (Ni)............  4.0E-2 lb/GWh.
                                       Selenium (Se)..........  6.0E-3 lb/GWh.
                                       b. Hydrogen chloride     4.0E-4 lb/MWh..........  For Method 26A, collect
                                        (HCl).                                            a minimum of 3 dscm
                                                                                per run.
                                                                                For ASTM D6348-03 \2\
                                                                                or Method 320, sample
                                                                                for a minimum of 1
                                                                                hour.
                                       OR                                                .......................
                                       Sulfur dioxide (SO2) 3.  4.0E-1 lb/MWh..........  SO2 CEMS.
                                       c. Mercury (Hg)........  4.0E-2 lb/GWh..........  Hg CEMS or sorbent trap
                                                                                monitoring system
                                                                                only.
----------------------------------------------------------------------------------------------------------------
3. IGCC unit.........................  a. Filterable            7.0E-2 lb/MWh 4........  Collect a minimum of 1
                                        particulate matter      9.0E-2 lb/MWh 5........   dscm per run.
                                        (PM).
                                       OR                       OR                       .......................
                                       Total non-Hg HAP metals  4.0E-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)..........  2.0E-2 lb/GWh.
                                       Arsenic (As)...........  2.0E-2 lb/GWh.
                                       Beryllium (Be).........  1.0E-3 lb/GWh.
                                       Cadmium (Cd)...........  2.0E-3 lb/GWh.
                                       Chromium (Cr)..........  4.0E-2 lb/GWh.
                                       Cobalt (Co)............  4.0E-3 lb/GWh.
                                       Lead (Pb)..............  9.0E-3 lb/GWh.
                                       Manganese (Mn).........  2.0E-2 lb/GWh.
                                       Nickel (Ni)............  7.0E-2 lb/GWh.
                                       Selenium (Se)..........  3.0E-1 lb/GWh.
                                       b. Hydrogen chloride     2.0E-3 lb/MWh..........  For Method 26A, collect
                                        (HCl).                                            a minimum of 1 dscm
                                                                                per run; for Method
                                                                                26, collect a minimum
                                                                                of 120 liters per run.
                                                                                For ASTM D6348-03 \2\
                                                                                or Method 320, sample
                                                                                for a minimum of 1
                                                                                hour.
                                       OR                                                .......................
                                       Sulfur dioxide (SO2) 3   4.0E-1 lb/MWh..........  SO2 CEMS.
                                       c. Mercury (Hg)........  3.0E-3 lb/GWh..........  Hg CEMS or sorbent trap
                                                                                monitoring system
                                                                                only.
----------------------------------------------------------------------------------------------------------------
4. Liquid oil-fired unit--continental  a. Filterable            7.0E-2 lb/MWh1.........  Collect a minimum of 1
 (excluding limited-use liquid oil-     particulate matter                                dscm per run.
 fired subcategory units).              (PM).
                                       OR                       OR                       .......................
                                       Total HAP metals.......  2.0E-4 lb/MWh..........  Collect a minimum of 2
                                                                                dscm per run.
                                       OR                       OR                       .......................
                                       Individual HAP metals:   .......................  Collect a minimum of 2
                                                                                dscm per run.
                                       Antimony (Sb)..........  1.0E-2 lb/GWh.
                                       Arsenic (As)...........  3.0E-3 lb/GWh.
                                       Beryllium (Be).........  5.0E-4 lb/GWh.
                                       Cadmium (Cd)...........  2.0E-4 lb/GWh.
                                       Chromium (Cr)..........  2.0E-2 lb/GWh.
                                       Cobalt (Co)............  3.0E-2 lb/GWh.
                                       Lead (Pb)..............  8.0E-3 lb/GWh.
                                       Manganese (Mn).........  2.0E-2 lb/GWh.
                                       Nickel (Ni)............  9.0E-2 lb/GWh.
                                       Selenium (Se)..........  2.0E-2 lb/GWh.

                                       Mercury (Hg)             1.0E-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     4.0E-4 lb/MWh..........  For Method 26A, collect
                                        (HCl)                                             a minimum of 3 dscm
                                                                                per run.
                                                                                For ASTM D6348-03 2 or
                                                                                Method 320, sample for
                                                                                a minimum of 1 hour.
                                       c. Hydrogen fluoride     4.0E-4 lb/MWh..........  For Method 26A, collect
                                        (HF)                                              a minimum of 3 dscm
                                                                                per run.
                                                                                For ASTM D6348-03 2 or
                                                                                Method 320, sample for
                                                                                a minimum of 1 hour.
----------------------------------------------------------------------------------------------------------------
5. Liquid oil-fired unit--non-         a. Filterable            2.0E-1 lb/MWh1.........  Collect a minimum of 1
 continental (excluding limited-use     particulate matter                                dscm per run.
 liquid oil-fired subcategory units).   (PM).
                                       OR                       OR                       .......................
                                       Total HAP metals         7.0E-3 lb/MWh..........  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-3 lb/GWh.
                                       Arsenic (As)...........  6.0E-2 lb/GWh.
                                       Beryllium (Be).........  2.0E-3 lb/GWh.
                                       Cadmium (Cd)...........  2.0E-3 lb/GWh.
                                       Chromium (Cr)..........  2.0E-2 lb/GWh.
                                       Cobalt (Co)............  3.0E-1 lb/GWh.
                                       Lead (Pb)..............  3.0E-2 lb/GWh.
                                       Manganese (Mn).........  1.0E-1 lb/GWh.
                                       Nickel (Ni)............  4.1E-0 lb/GWh.
                                       Selenium (Se)..........  2.0E-2 lb/GWh.
                                       Mercury (Hg)...........  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     2.0E-3 lb/MWh..........  For Method 26A, collect
                                        (HCl)                                             a minimum of 1 dscm
                                                                                per run; for Method
                                                                                26, collect a minimum
                                                                                of 120 liters per run.
                                                                                For ASTM D6348-032 or
                                                                                Method 320, sample for
                                                                                a minimum of 1 hour
                                       c. Hydrogen fluoride     5.0E-4 lb/MWh..........  For Method 26A, collect
                                        (HF)                                              a minimum of 3 dscm
                                                                                per run.
                                                                                For ASTM D6348-03 2 or
                                                                                Method 320, sample for
                                                                                a minimum of 1 hour.
----------------------------------------------------------------------------------------------------------------
6. Solid oil-derived fuel-fired unit.  a. Filterable            2.0E-2 lb/MWh1.........  Collect a minimum of 1
                                        particulate matter                                dscm per run.
                                        (PM).
                                       OR                       OR                       .......................
                                       Total non-Hg HAP metals  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-3 lb/GWh.
                                       Arsenic (As)...........  3.0E-3 lb/GWh.
                                       Beryllium (Be).........  6.0E-4 lb/GWh.
                                       Cadmium (Cd)...........  7.0E-4 lb/GWh.
                                       Chromium (Cr)..........  6.0E-3 lb/GWh.
                                       Cobalt (Co)............  2.0E-3 lb/GWh.

                                       Lead (Pb)..............  2.0E-2 lb/GWh.
                                       Manganese (Mn).........  7.0E-3 lb/GWh.
                                       Nickel (Ni)............  4.0E-2 lb/GWh.
                                       Selenium (Se)..........  6.0E-3 lb/GWh.
                                       b. Hydrogen chloride     4.0E-4 lb/MWh..........  For Method 26A, collect
                                        (HCl).                                            a minimum of 3 dscm
                                                                                per run.
                                                                                For ASTM D6348-03 2 or
                                                                                Method 320, sample for
                                                                                a minimum of 1 hour.
                                       OR                                                .......................

                                       Sulfur dioxide (SO2) 3.  4.0E-1 lb/MWh..........  SO2 CEMS.
                                       c. Mercury (Hg)........  2.0E-3 lb/GWh..........  Hg CEMS or Sorbent trap
                                                                                monitoring system
                                                                                only.
----------------------------------------------------------------------------------------------------------------
1 Gross electric output.
2 Incorporated by reference, see Sec.   63.14.
3 You may not use the alternate SO2 limit if your EGU does not have some form of FGD system and SO2 CEMS
  installed.
4 Duct burners on syngas; gross electric output.
5 Duct burners on natural gas; gross electric output

                     Table 2 to Subpart UUUUU of Part 63--Emission Limits for Existing EGUs
        [As stated in Sec.   63.9991, you must comply with the following applicable emission limits] \1\
----------------------------------------------------------------------------------------------------------------
                                                                                Using these
                                                                                requirements, as
                                                                   You must meet the        appropriate (e.g.,
                                          For the following        following emission       specified sampling
  If your EGU is in this subcategory          pollutants            limits and work         volume or test run
                                                                   practice standards         duration) and
                                                                                limitations with the
                                                                                test methods in Table 5
----------------------------------------------------------------------------------------------------------------
1. Coal-fired unit not low rank        a. Filterable            3.0E-2 lb/MMBtu or 3.0E- Collect a minimum of 1
 virgin coal.                           particulate matter       1 lb/MWh \2\.            dscm per run.
                                        (PM).
                                       OR                       OR
                                       Total non-Hg HAP metals  5.0E-5 lb/MMBtu or 5.0E- Collect a minimum of 1
                                                                 1 lb/GWh.                dscm per run.
                                       OR                       OR
                                       Individual HAP metals
                                       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     2.0E-3 lb/MMBtu or 2.0E- For Method 26A, collect
                                        (HCl).                   2 lb/MWh.                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)     2.0E-1 lb/MMBtu or       SO2 CEMS.
                                        \4\.                     1.5E0 lb/MWh.
                                       c. Mercury (Hg)........  1.2E0 lb/TBtu or 1.3E-2  LEE Testing for 30 days
                                                                 lb/GWh.                  with 10 days maximum
                                                                                per Method 30B run or
                                                                                Hg CEMS or sorbent
                                                                                trap monitoring system
                                                                                only.
----------------------------------------------------------------------------------------------------------------
2. Coal-fired unit low rank virgin     a. Filterable            3.0E-2 lb/MMBtu or 3.0E- Collect a minimum of 1
 coal.                                  particulate matter       1 lb/MWh2.               dscm per run.
                                        (PM).
                                       OR                       OR
                                       Total non-Hg HAP metals  5.0E-5 lb/MMBtu or 5.0E- Collect a minimum of 1
                                                                 1 lb/GWh.                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     2.0E-3 lb/MMBtu or 2.0E- For Method 26A, collect
                                        (HCl).                   2 lb/MWh.                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)     2.0E-1 lb/MMBtu or       SO2 CEMS.
                                        \4\.                     1.5E0 lb/MWh.
                                       c. Mercury (Hg)........  4.0E0 lb/TBtu or 4.0E-2  LEE Testing for 30 days
                                                                 lb/GWh.                  with 10 days maximum
                                                                                per Method 30B run or
                                                                                Hg CEMS or sorbent
                                                                                trap monitoring system
                                                                                only.
----------------------------------------------------------------------------------------------------------------
3. IGCC unit.........................  a. Filterable            4.0E-2 lb/MMBtu or 4.0E- Collect a minimum of 1
                                        particulate matter       1 lb/MWh2.               dscm per run.
                                        (PM).
                                       OR                       OR
                                       Total non-Hg HAP metals  6.0E-5 lb/MMBtu or 5.0E- Collect a minimum of 1
                                                                 1 lb/GWh.                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/MMBtu or
                                                                 1.8E0 lb/MWh.
                                       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     5.0E-4 lb/MMBtu or 5.0E- For Method 26A, collect
                                        (HCl).                   3 lb/MWh.                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  LEE Testing for 30 days
                                                                 lb/GWh.                  with 10 days maximum
                                                                                per Method 30B run or
                                                                                Hg CEMS or sorbent
                                                                                trap monitoring system
                                                                                only.
----------------------------------------------------------------------------------------------------------------
4. Liquid oil-fired unit--continental  a. Filterable            3.0E-2 lb/MMBtu or 3.0E- Collect a minimum of 1
 (excluding limited-use liquid oil-     particulate matter       1 lb/MWh2.               dscm per run.
 fired subcategory units).              (PM).
                                       OR                       OR
                                       Total HAP metals.......  8.0E-4 lb/MMBtu or 8.0E- Collect a minimum of 1
                                                                 3 lb/MWh.                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-  For Method 30B sample
                                                                 3 lb/GWh.                volume determination
                                                                                (Section 8.2.4), the
                                                                                estimated Hg
                                                                                concentration should
                                                                                nominally be < \1/2\
                                                                                the standard.
                                       b. Hydrogen chloride     2.0E-3 lb/MMBtu or 1.0E- For Method 26A, collect
                                        (HCl).                   2 lb/MWh.                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     4.0E-4 lb/MMBtu or 4.0E- For Method 26A, collect
                                        (HF).                    3 lb/MWh.                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-         a. Filterable            3.0E-2 lb/MMBtu or 3.0E- Collect a minimum of 1
 continental (excluding limited-use     particulate matter       1 lb/MWh2.               dscm per run.
 liquid oil-fired subcategory units).   (PM).
                                       OR                       OR
                                       Total HAP metals.......  6.0E-4 lb/MMBtu or 7.0E- Collect a minimum of 1
                                                                 3 lb/MWh.                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-  For Method 30B sample
                                                                 4 lb/GWh.                volume determination
                                                                                (Section 8.2.4), the
                                                                                estimated Hg
                                                                                concentration should
                                                                                nominally be < \1/2\
                                                                                the standard.
                                       Hydrogen chloride (HCl)  2.0E-4 lb/MMBtu or 2.0E- For Method 26A, collect
                                                                 3 lb/MWh.                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     6.0E-5 lb/MMBtu or 5.0E- For Method 26A, collect
                                        (HF).                    4 lb/MWh.                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            8.0E-3 lb/MMBtu or 9.0E- Collect a minimum of 1
                                        particulate matter       2 lb/MWh2.               dscm per run.
                                        (PM).
                                       OR                       OR
                                       Total non-Hg HAP metals  4.0E-5 lb/MMBtu or 6.0E- Collect a minimum of 1
                                                                 1 lb/GWh.                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)...........  3.0E-1 lb/TBtu or 5.0E-
                                                                 3 lb/GWh.
                                       Beryllium (Be).........  6.0E-2 lb/TBtu or 6.0E-
                                                                 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 2.0E-2 lb/
                                                                 GWh.
                                       b. Hydrogen chloride     5.0E-3 lb/MMBtu or 8.0E- For Method 26A, collect
                                        (HCl).                   2 lb/MWh.                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)     3.0E-1 lb/MMBtu or       SO2 CEMS.
                                        \4\.                     2.0E0 lb/MWh.
                                       c. Mercury (Hg)........  2.0E-1 lb/TBtu or 2.0E-  LEE Testing for 30 days
                                                                 3 lb/GWh.                with 10 days maximum
                                                                                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 two.
\2\ Gross electric output.
\3\ Incorporated by reference, see Sec.   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.

      Table 3 to Subpart UUUUU of Part 63--Work Practice Standards
 [As stated in Sec.  Sec.   63.9991, you must comply with the following
                   applicable work practice standards]
------------------------------------------------------------------------
     If your EGU is . . .          You must meet the following . . .
------------------------------------------------------------------------
1. An existing EGU...........  Conduct a tune-up of the EGU burner and
                                combustion controls at least each 36
                                calendar months, or each 48 calendar
                                months if neural network combustion
                                optimization software is employed, as
                                specified in Sec.   63.10021(e).
------------------------------------------------------------------------
2. A new or reconstructed EGU  Conduct a tune-up of the EGU burner and
                                combustion controls at least each 36
                                calendar months, or each 48 calendar
                                months if neural network combustion
                                optimization software is employed, as
                                specified in Sec.   63.10021(e).
------------------------------------------------------------------------
3. A coal-fired, liquid oil-   You must operate all CMS during startup.
 fired, or solid oil-derived    Startup means either the first-ever
 fuel-fired EGU during          firing of fuel in a boiler for the
 startup.                       purpose of producing electricity, or the
                                firing of fuel in a boiler after a
                                shutdown event for any purpose. Startup
                                ends when any of the steam from the
                                boiler is used to generate electricity
                                for sale over the grid or for any other
                                purpose (including on site use). For
                                startup of a unit, you must use clean
                                fuels, either natural gas or distillate
                                oil or a combination of clean fuels for
                                ignition. Once you convert to firing
                                coal, residual oil, or solid oil-derived
                                fuel, you must engage all of the
                                applicable control technologies except
                                dry scrubber and SCR. You must start
                                your dry scrubber and SCR systems, if
                                present, appropriately to comply with
                                relevant standards applicable during
                                normal operation. You must comply with
                                all applicable emissions limits at all
                                times except for periods that meet the
                                definitions of startup and shutdown in
                                this subpart. You must keep records
                                during periods of startup. You must
                                provide reports concerning activities
                                and periods of startup, as specified in
                                Sec.   63.10011(g) and Sec.
                                63.10021(h) and (i).
------------------------------------------------------------------------

4. A coal-fired, liquid oil-   You must operate all CMS during shutdown.
 fired, or solid oil-derived    Shutdown means the cessation of
 fuel-fired EGU during          operation of a boiler for any purpose.
 shutdown.                      Shutdown begins either when none of the
                                steam from the boiler is used to
                                generate electricity for sale over the
                                grid or for any other purpose (including
                                on-site use) or at the point of no fuel
                                being fired in the boiler. Shutdown ends
                                when there is both no electricity being
                                generated and no fuel being fired in the
                                boiler. During shutdown, you must
                                operate all applicable control
                                technologies while firing coal, residual
                                oil, or solid oil-derived fuel. You must
                                comply with all applicable emissions
                                limits at all times except for periods
                                that meet the definitions of startup and
                                shutdown in this subpart. You must keep
                                records during periods of startup. You
                                must provide reports concerning
                                activities and periods of startup, as
                                specified in Sec.   63.10011(g) and Sec.
                                  63.10021(h) and (i).
------------------------------------------------------------------------

     Table 4 to Subpart UUUUU of Part 63--Operating Limits for EGUs
    [As stated in Sec.   63.9991, you must comply with the applicable
                            operating limits]
------------------------------------------------------------------------
If you demonstrate compliance   You must meet these operating limits . .
         using . . .                               .
------------------------------------------------------------------------
1. PM CPMS...................  Maintain the 30-boiler operating day
                                rolling average PM CPMS output at or
                                below the highest 1-hour average
                                measured during the most recent
                                performance test demonstrating
                                compliance with the filterable PM, total
                                non-mercury HAP metals (total HAP
                                metals, for liquid oil-fired units), or
                                individual non-mercury HAP metals
                                (individual HAP metals including Hg, for
                                liquid oil-fired units) emissions
                                limitation(s).
------------------------------------------------------------------------

                      Table 5 to Subpart UUUUU of Part 63--Performance Testing Requirements
   [As stated in Sec.   63.10007, you must comply with the following requirements for performance testing for
                              existing, new or reconstructed affected sources \1\]
----------------------------------------------------------------------------------------------------------------
                                                              You must perform the
                                                            following activities, as
 To conduct a performance test for       Using . . .        applicable to your input-       Using \2\ . . .
   the following pollutant . . .                            or output-based emission
                                                                   limit . . .
----------------------------------------------------------------------------------------------------------------
1. Filterable Particulate matter    Emissions Testing....  a. Select sampling ports    Method 1 at Appendix A-1
 (PM).                                                      location and the number     to part 60 of this
                                                            of traverse points.         chapter.
                                                           b. Determine velocity and   Method 2, 2A, 2C, 2F, 2G
                                                            volumetric flow-rate of     or 2H at Appendix A-1 or
                                                            the stack gas.              A-2 to part 60 of this
                                                                                chapter.
                                                           c. Determine oxygen and     Method 3A or 3B at
                                                            carbon dioxide              Appendix A-2 to part 60
                                                            concentrations of the       of this chapter, or ANSI/
                                                            stack gas.                  ASME PTC 19.10-1981.\3\
                                                           d. Measure the moisture     Method 4 at Appendix A-3
                                                            content of the stack gas.   to part 60 of this
                                                                                chapter.
                                                           e. Measure the filterable   Method 5 at Appendix A-3
                                                            PM concentration.           to part 60 of this
                                                                                chapter.
                                                                                For positive pressure
                                                                                fabric filters, Method
                                                                                5D at Appendix A-3 to
                                                                                part 60 of this chapter
                                                                                for filterable PM
                                                                                emissions.
                                                                                Note that the Method 5
                                                                                front half temperature
                                                                                shall be 160 [deg]  14 [deg]C (320
                                                                                [deg]  25
                                                                                [deg]F).
                                                           f. Convert emissions        Method 19 F-factor
                                                            concentration to lb/MMBtu   methodology at Appendix
                                                            or lb/MWh emissions rates.  A-7 to part 60 of this
                                                                                chapter, or calculate
                                                                                using mass emissions
                                                                                rate and electrical
                                                                                output data (see Sec.
                                                                                63.10007(e)).
                                    OR                     OR
                                    PM CEMS                a. Install, certify,        Performance Specification
                                                            operate, and maintain the   11 at Appendix B to part
                                                            PM CEMS.                    60 of this chapter and
                                                                                Procedure 2 at Appendix
                                                                                F to Part 60 of this
                                                                                chapter.
                                                           b. Install, certify,        Part 75 of this chapter
                                                            operate, and maintain the   and Sec.  Sec.
                                                            diluent gas, flow rate,     63.10010(a), (b), (c),
                                                            and/or moisture             and (d).
                                                            monitoring systems.
                                                           c. Convert hourly           Method 19 F-factor
                                                            emissions concentrations    methodology at Appendix
                                                            to 30 boiler operating      A-7 to part 60 of this
                                                            day rolling average lb/     chapter, or calculate
                                                            MMBtu or lb/MWh emissions   using mass emissions
                                                            rates.                      rate and electrical
                                                                                output data (see Sec.
                                                                                63.10007(e)).
----------------------------------------------------------------------------------------------------------------
2. Total or individual non-Hg HAP   Emissions Testing....  a. Select sampling ports    Method 1 at Appendix A-1
 metals.                                                    location and the number     to part 60 of this
                                                            of traverse points.         chapter.
                                                           b. Determine velocity and   Method 2, 2A, 2C, 2F, 2G
                                                            volumetric flow-rate of     or 2H at Appendix A-1 or
                                                            the stack gas.              A-2 to part 60 of this
                                                                                chapter.

                                                           c. Determine oxygen and     Method 3A or 3B at
                                                            carbon dioxide              Appendix A-2 to part 60
                                                            concentrations of the       of this chapter, or ANSI/
                                                            stack gas.                  ASME PTC 19.10-1981.\3\
                                                           d. Measure the moisture     Method 4 at Appendix A-3
                                                            content of the stack gas.   to part 60 of this
                                                                                chapter.
                                                           e. Measure the HAP metals   Method 29 at Appendix A-8
                                                            emissions concentrations    to part 60 of this
                                                            and determine each          chapter. For liquid oil-
                                                            individual HAP metals       fired units, Hg is
                                                            emissions concentration,    included in HAP metals
                                                            as well as the total        and you may use Method
                                                            filterable HAP metals       29, Method 30B at
                                                            emissions concentration     Appendix A-8 to part 60
                                                            and total HAP metals        of this chapter; for
                                                            emissions concentration.    Method 29, you must
                                                                                report the front half
                                                                                and back half results
                                                                                separately.
                                                           f. Convert emissions        Method 19 F-factor
                                                            concentrations              methodology at Appendix
                                                            (individual HAP metals,     A-7 to part 60 of this
                                                            total filterable HAP        chapter, or calculate
                                                            metals, and total HAP       using mass emissions
                                                            metals) to lb/MMBtu or lb/  rate and electrical
                                                            MWh emissions rates.        output data (see Sec.
                                                                                63.10007(e)).
----------------------------------------------------------------------------------------------------------------
3. Hydrogen chloride (HCl) and      Emissions Testing....  a. Select sampling ports    Method 1 at Appendix A-1
 hydrogen fluoride (HF).                                    location and the number     to part 60 of this
                                                            of traverse points.         chapter.
                                                           b. Determine velocity and   Method 2, 2A, 2C, 2F, 2G
                                                            volumetric flow-rate of     or 2H at Appendix A-1 or
                                                            the stack gas.              A-2 to part 60 of this
                                                                                chapter.
                                                           c. Determine oxygen and     Method 3A or 3B at
                                                            carbon dioxide              Appendix A-2 to part 60
                                                            concentrations of the       of this chapter, or ANSI/
                                                            stack gas.                  ASME PTC 19.10-1981.\3\
                                                           d. Measure the moisture     Method 4 at Appendix A-3
                                                            content of the stack gas.   to part 60 of this
                                                                                chapter.
                                                           e. Measure the HCl and HF   Method 26 or Method 26A
                                                            emissions concentrations.   at Appendix A-8 to part
                                                                                60 of this chapter or
                                                                                Method 320 at Appendix A
                                                                                to part 63 of this
                                                                                chapter or ASTM 6348-03
                                                                                \3\ with (1) additional
                                                                                quality assurance
                                                                                measures in footnote \4\
                                                                                and (2) spiking levels
                                                                                nominally no greater
                                                                                than two times the level
                                                                                corresponding to the
                                                                                applicable emission
                                                                                limit. Method 26A must
                                                                                be used if there are
                                                                                entrained water droplets
                                                                                in the exhaust stream.
                                                           f. Convert emissions        Method 19 F-factor
                                                            concentration to lb/MMBtu   methodology at Appendix
                                                            or lb/MWh emissions rates.  A-7 to part 60 of this
                                                                                chapter, or calculate
                                                                                using mass emissions
                                                                                rate and electrical
                                                                                output data (see Sec.
                                                                                63.10007(e)).
                                    OR                     OR
                                    HCl and/or HF CEMS...  a. Install, certify,        Appendix B of this
                                                            operate, and maintain the   subpart.
                                                            HCl or HF CEMS.
                                                           b. Install, certify,        Part 75 of this chapter
                                                            operate, and maintain the   and Sec.  Sec.
                                                            diluent gas, flow rate,     63.10010(a), (b), (c),
                                                            and/or moisture             and (d).
                                                            monitoring systems.
                                                           c. Convert hourly           Method 19 F-factor
                                                            emissions concentrations    methodology at Appendix
                                                            to 30 boiler operating      A-7 to part 60 of this
                                                            day rolling average lb/     chapter, or calculate
                                                            MMBtu or lb/MWh emissions   using mass emissions
                                                            rates.                      rate and electrical
                                                                                output data (see Sec.
                                                                                63.10007(e)).
----------------------------------------------------------------------------------------------------------------
4. Mercury (Hg)...................  Emissions Testing....  a. Select sampling ports    Method 1 at Appendix A-1
                                                            location and the number     to part 60 of this
                                                            of traverse points.         chapter or Method 30B at
                                                                                Appendix A-8 for Method
                                                                                30B point selection.
                                                           b. Determine velocity and   Method 2, 2A, 2C, 2F, 2G
                                                            volumetric flow-rate of     or 2H at Appendix A-1 or
                                                            the stack gas.              A-2 to part 60 of this
                                                                                chapter.
                                                           c. Determine oxygen and     Method 3A or 3B at
                                                            carbon dioxide              Appendix A-1 to part 60
                                                            concentrations of the       of this chapter, or ANSI/
                                                            stack gas.                  ASME PTC 19.10-1981.\3\
                                                           d. Measure the moisture     Method 4 at Appendix A-3
                                                            content of the stack gas.   to part 60 of this
                                                                                chapter.
                                                           e. Measure the Hg emission  Method 30B at Appendix A-
                                                            concentration.              8 to part 60 of this
                                                                                chapter, ASTM D6784 \3\,
                                                                                or Method 29 at Appendix
                                                                                A-8 to part 60 of this
                                                                                chapter; for Method 29,
                                                                                you must report the
                                                                                front half and back half
                                                                                results separately.

                                                           f. Convert emissions        Method 19 F-factor
                                                            concentration to lb/TBtu    methodology at Appendix
                                                            or lb/GWh emission rates.   A-7 to part 60 of this
                                                                                chapter, or calculate
                                                                                using mass emissions
                                                                                rate and electrical
                                                                                output data (see Sec.
                                                                                63.10007(e)).
                                    OR                     OR
                                                           Hg CEMS...................  Sections 3.2.1 and 5.1 of
                                                           a. Install, certify,         Appendix A of this
                                                            operate, and maintain the   subpart.
                                                            CEMS.
                                                           b. Install, certify,        Part 75 of this chapter
                                                            operate, and maintain the   and Sec.  Sec.
                                                            diluent gas, flow rate,     63.10010(a), (b), (c),
                                                            and/or moisture             and (d).
                                                            monitoring systems.
                                                           c. Convert hourly           Section 6 of Appendix A
                                                            emissions concentrations    to this subpart.
                                                            to 30 boiler operating
                                                            day rolling average lb/
                                                            TBtu or lb/GWh emissions
                                                            rates.
                                    OR                     OR
                                    Sorbent trap           a. Install, certify,        Sections 3.2.2 and 5.2 of
                                     monitoring system.     operate, and maintain the   Appendix A to this
                                                            sorbent trap monitoring     subpart.
                                                            system.
                                                           b. Install, operate, and    Part 75 of this chapter
                                                            maintain the diluent gas,   and Sec.  Sec.
                                                            flow rate, and/or           63.10010(a), (b), (c),
                                                            moisture monitoring         and (d).
                                                            systems.
                                                           c. Convert emissions        Section 6 of Appendix A
                                                            concentrations to 30        to this subpart.
                                                            boiler operating day
                                                            rolling average lb/TBtu
                                                            or lb/GWh emissions rates.
                                    OR                     OR
                                    LEE testing..........  a. Select sampling ports    Single point located at
                                                            location and the number     the 10% centroidal area
                                                            of traverse points.         of the duct at a port
                                                                                location per Method 1 at
                                                                                Appendix A-1 to part 60
                                                                                of this chapter or
                                                                                Method 30B at Appendix A-
                                                                                8 for Method 30B point
                                                                                selection.
                                                           b. Determine velocity and   Method 2, 2A, 2C, 2F, 2G,
                                                            volumetric flow-rate of     or 2H at Appendix A-1 or
                                                            the stack gas.              A-2 to part 60 of this
                                                                                chapter or flow
                                                                                monitoring system
                                                                                certified per Appendix A
                                                                                of this subpart.
                                                           c. Determine oxygen and     Method 3A or 3B at
                                                            carbon dioxide              Appendix A-1 to part 60
                                                            concentrations of the       of this chapter, or ANSI/
                                                            stack gas.                  ASME PTC 19.10-1981,\3\
                                                                                or diluent gas
                                                                                monitoring systems
                                                                                certified according to
                                                                                Part 75 of this chapter.
                                                           d. Measure the moisture     Method 4 at Appendix A-3
                                                            content of the stack gas.   to part 60 of this
                                                                                chapter, or moisture
                                                                                monitoring systems
                                                                                certified according to
                                                                                part 75 of this chapter.
                                                           e. Measure the Hg emission  Method 30B at Appendix A-
                                                            concentration.              8 to part 60 of this
                                                                                chapter; perform a 30
                                                                                operating day test, with
                                                                                a maximum of 10
                                                                                operating days per run
                                                                                (i.e., per pair of
                                                                                sorbent traps) or
                                                                                sorbent trap monitoring
                                                                                system or Hg CEMS
                                                                                certified per Appendix A
                                                                                of this subpart.
                                                           f. Convert emissions        Method 19 F-factor
                                                            concentrations from the     methodology at Appendix
                                                            LEE test to lb/TBtu or lb/  A-7 to part 60 of this
                                                            GWh emissions rates.        chapter, or calculate
                                                                                using mass emissions
                                                                                rate and electrical
                                                                                output data (see Sec.
                                                                                63.10007(e)).
                                                           g. Convert average lb/TBtu  Potential maximum annual
                                                            or lb/GWh Hg emission       heat input in TBtu or
                                                            rate to lb/year, if you     potential maximum
                                                            are attempting to meet      electricity generated in
                                                            the 22.0 lb/year            GWh.
                                                            threshold.
----------------------------------------------------------------------------------------------------------------
5. Sulfur dioxide (SO2)...........  SO2 CEMS.............  a. Install, certify,        Part 75 of this chapter
                                                            operate, and maintain the   and Sec.  Sec.
                                                            CEMS.                       63.10010(a) and (f).
                                                           b. Install, operate, and    Part 75 of this chapter
                                                            maintain the diluent gas,   and Sec.  Sec.
                                                            flow rate, and/or           63.10010(a), (b), (c),
                                                            moisture monitoring         and (d).
                                                            systems.
                                                           c. Convert hourly           Method 19 F-factor
                                                            emissions concentrations    methodology at Appendix
                                                            to 30 boiler operating      A-7 to part 60 of this
                                                            day rolling average lb/     chapter, or calculate
                                                            MMBtu or lb/MWh emissions   using mass emissions
                                                            rates.                      rate and electrical
                                                                                output data (see Sec.
                                                                                63.10007(e)).
----------------------------------------------------------------------------------------------------------------
\1\ Regarding emissions data collected during periods of startup or shutdown, see Sec.  Sec.   63.10020(b) and
  (c) and Sec.   63.10021(h).

\2\ See Tables 1 and 2 to this subpart for required sample volumes and/or sampling run times.
\3\ Incorporated by reference, see Sec.   63.14.
\4\ When using ASTM D6348-03, the following conditions must be met: (1) The test plan preparation and
  implementation in the Annexes to ASTM D6348-03, Sections A1 through A8 are mandatory; (2) For ASTM D6348-03
  Annex A5 (Analyte Spiking Technique), the percent (%) R must be determined for each target analyte (see
  Equation A5.5); (3) For the ASTM D6348-03 test data to be acceptable for a target analyte, %R must be 70% >= R
  <= 130%; and (4) The %R value for each compound must be reported in the test report and all field measurements
  corrected with the calculated %R value for that compound using the following equation:

  [GRAPHIC] [TIFF OMITTED] TR16FE12.011

                   Table 6 to Subpart UUUUU of Part 63--Establishing PM CPMS Operating Limits
    [As stated in Sec.   63.10007, you must comply with the following requirements for establishing operating
                                                     limits]
----------------------------------------------------------------------------------------------------------------
                                   And you choose to
    If you have an applicable      establish PM CPMS                                           According to the
    emission limit for . . .       operating limits,       And . . .          Using . . .          following
                                    you must . . .                                             procedures . . .
----------------------------------------------------------------------------------------------------------------
Particulate matter (PM), total    Install, certify,   Establish a site-   Data from the PM    1. Collect PM CPMS
 non-mercury HAP metals,           maintain, and       specific            CPMS and the PM     output data
 individual non-mercury HAP        operate a PM CPMS   operating limit     or HAP metals       during the entire
 metals, total HAP metals,         for monitoring      in units of PM      performance tests.  period of the
 individual HAP metals.            emissions           CPMS output                             performance
                                   discharged to the   signal (e.g.,                           tests.
                                   atmosphere          milliamps, mg/                         2. Record the
                                   according to Sec.   acm, or other raw                       average hourly PM
                                     63.10010(g)(1).   signal).                                CPMS output for
                                                                                each test run in
                                                                                the three run
                                                                                performance test.
                                                                                3. Determine the
                                                                                highest 1-hour
                                                                                average PM CPMS
                                                                                measured during
                                                                                the performance
                                                                                test
                                                                                demonstrating
                                                                                compliance with
                                                                                the filterable PM
                                                                                or HAP metals
                                                                                emissions
                                                                                limitations.
----------------------------------------------------------------------------------------------------------------

Table 7 to Subpart UUUUU of Part 63--Demonstrating Continuous Compliance
 [As stated in Sec.   63.10021, you must show continuous compliance with
     the emission limitations for affected sources according to the
                               following]
------------------------------------------------------------------------
If you use one of the following to meet
 applicable emissions limits, operating     You demonstrate continuous
 limits, or work practice standards . .        compliance by . . .
                   .
------------------------------------------------------------------------
1. CEMS to measure filterable PM, SO2,   Calculating the 30-boiler
 HCl, HF, or Hg emissions, or using a     operating day rolling
 sorbent trap monitoring system to        arithmetic average emissions
 measure Hg.                              rate in units of the
                                          applicable emissions standard
                                          basis at the end of each
                                          boiler operating day using all
                                          of the quality assured hourly
                                          average CEMS or sorbent trap
                                          data for the previous 30
                                          boiler operating days,
                                          excluding data recorded during
                                          periods of startup or
                                          shutdown.
2. PM CPMS to measure compliance with a  Calculating the arithmetic 30-
 parametric operating limit.              boiler operating day rolling
                                          average of all of the quality
                                          assured hourly average PM CPMS
                                          output data (e.g., milliamps,
                                          PM concentration, raw data
                                          signal) collected for all
                                          operating hours for the
                                          previous 30 boiler operating
                                          days, excluding data recorded
                                          during periods of startup or
                                          shutdown.
3. Site-specific monitoring for liquid   If applicable, by conducting
 oil-fired units for HCl and HF           the monitoring in accordance
 emission limit monitoring.               with an approved site-specific
                                          monitoring plan.
4. Quarterly performance testing for     Calculating the results of the
 coal-fired, solid oil derived fired,     testing in units of the
 or liquid oil-fired units to measure     applicable emissions standard.
 compliance with one or more applicable
 emissions limit in Table 1 or 2.
5. Conducting periodic performance tune- Conducting periodic performance
 ups of your EGU(s).                      tune-ups of your EGU(s), as
                                          specified in Sec.
                                          63.10021(e).
6. Work practice standards for coal-     Operating in accordance with
 fired, liquid oil-fired, or solid oil-   Table 3.
 derived fuel-fired EGUs during startup.
7. Work practice standards for coal-     Operating in accordance with
 fired, liquid oil-fired, or solid oil-   Table 3.
 derived fuel-fired EGUs during
 shutdown.
------------------------------------------------------------------------

                           Table 8 to Subpart UUUUU of Part 63--Reporting Requirements
           [As stated in Sec.   63.10031, you must comply with the following requirements for reports]
----------------------------------------------------------------------------------------------------------------
                                                                                You must submit the report
         You must submit a . . .                 The report must contain . . .                   . . .
----------------------------------------------------------------------------------------------------------------
1. Compliance report....................  a. Information required in Sec.             Semiannually according to
                                           63.10031(c)(1) through (4); and             the requirements in Sec.
                                          b. If there are no deviations from any        63.10031(b).
                                           emission limitation (emission limit and
                                           operating limit) that applies to you and
                                           there are no deviations from the
                                           requirements for work practice standards
                                           in Table 3 to this subpart that apply to
                                           you, a statement that there were no
                                           deviations from the emission limitations
                                           and work practice standards during the
                                           reporting period. If there were no
                                           periods during which the CMSs, including
                                           continuous emissions monitoring system,
                                           and operating parameter monitoring
                                           systems, were out-of-control as specified
                                           in Sec.   63.8(c)(7), a statement that
                                           there were no periods during which the
                                           CMSs were out-of-control during the
                                           reporting period; and.
                                          c. If you have a deviation from any         ..........................
                                           emission limitation (emission limit and
                                           operating limit) or work practice
                                           standard during the reporting period, the
                                           report must contain the information in
                                           Sec.   63.10031(d). If there were periods
                                           during which the CMSs, including
                                           continuous emissions monitoring systems
                                           and continuous parameter monitoring
                                           systems, were out-of-control, as
                                           specified in Sec.   63.8(c)(7), the
                                           report must contain the information in
                                           Sec.   63.10031(e).
----------------------------------------------------------------------------------------------------------------

Table 9 to Subpart UUUUU of Part 63--Applicability of General Provisions
                            to Subpart UUUUU
   [As stated in Sec.   63.10040, you must comply with the applicable
             General Provisions according to the following]
------------------------------------------------------------------------
                                                      Applies to subpart
            Citation                    Subject              UUUUU
------------------------------------------------------------------------
Sec.   63.1.....................  Applicability.....  Yes.
Sec.   63.2.....................  Definitions.......  Yes. Additional
                                                       terms defined in
                                                       Sec.   63.10042.
Sec.   63.3.....................  Units and           Yes.
                                   Abbreviations.
Sec.   63.4.....................  Prohibited          Yes.
                                   Activities and
                                   Circumvention.
Sec.   63.5.....................  Preconstruction     Yes.
                                   Review and
                                   Notification
                                   Requirements.
Sec.   63.6(a), (b)(1)-(b)(5),    Compliance with     Yes.
 (b)(7), (c), (f)(2)-(3), (g),     Standards and
 (h)(2)-(h)(9), (i), (j).          Maintenance
                                   Requirements.
Sec.   63.6(e)(1)(i)............  General Duty to     No. See Sec.
                                   minimize            63.10000(b) for
                                   emissions.          general duty
                                                       requirement.
Sec.   63.6(e)(1)(ii)...........  Requirement to      No.
                                   correct
                                   malfunctions ASAP.
Sec.   63.6(e)(3)...............  SSM Plan            No.
                                   requirements.
Sec.   63.6(f)(1)...............  SSM exemption.....  No.
Sec.   63.6(h)(1)...............  SSM exemption.....  No.
Sec.   63.7(a), (b), (c), (d),    Performance         Yes.
 (e)(2)-(e)(9), (f), (g), and      Testing
 (h).                              Requirements.
Sec.   63.7(e)(1)...............  Performance         No. See Sec.
                                   testing.            63.10007.
Sec.   63.8.....................  Monitoring          Yes.
                                   Requirements.
63.8(c)(1)(i)...................  General duty to     No. See Sec.
                                   minimize            63.10000(b) for
                                   emissions and CMS   general duty
                                   operation.          requirement.
Sec.   63.8(c)(1)(iii)..........  Requirement to      No.
                                   develop SSM Plan
                                   for CMS.
Sec.   63.8(d)(3)...............  Written procedures  Yes, except for
                                   for CMS.            last sentence,
                                                       which refers to
                                                       an SSM plan. SSM
                                                       plans are not
                                                       required.
Sec.   63.9.....................  Notification        Yes.
                                   Requirements.
Sec.   63.10(a), (b)(1), (c),     Recordkeeping and   Yes, except for
 (d)(1)-(2), (e), and (f).         Reporting           the requirements
                                   Requirements.       to submit written
                                                       reports under
                                                       Sec.
                                                       63.10(e)(3)(v).
Sec.   63.10(b)(2)(i)...........  Recordkeeping of    No.
                                   occurrence and
                                   duration of
                                   startups and
                                   shutdowns.
Sec.   63.10(b)(2)(ii)..........  Recordkeeping of    No. See 63.10001
                                   malfunctions.       for recordkeeping
                                                       of (1) occurrence
                                                       and duration and
                                                       (2) actions taken
                                                       during
                                                       malfunction.
Sec.   63.10(b)(2)(iii).........  Maintenance         Yes.
                                   records.
Sec.   63.10(b)(2)(iv)..........  Actions taken to    No.
                                   minimize
                                   emissions during
                                   SSM.
Sec.   63.10(b)(2)(v)...........  Actions taken to    No.
                                   minimize
                                   emissions during
                                   SSM.
Sec.   63.10(b)(2)(vi)..........  Recordkeeping for   Yes.
                                   CMS malfunctions.
Sec.   63.10(b)(2)(vii)-(ix)....  Other CMS           Yes.
                                   requirements.
Sec.   63.10(b)(3), and (d)(3)-   ..................  No.
 (5).
Sec.   63.10(c)(7)..............  Additional          Yes.
                                   recordkeeping
                                   requirements for
                                   CMS--identifying
                                   exceedances and
                                   excess emissions.
Sec.   63.10(c)(8)..............  Additional          Yes.
                                   recordkeeping
                                   requirements for
                                   CMS--identifying
                                   exceedances and
                                   excess emissions.
Sec.   63.10(c)(10).............  Recording nature    No. See
                                   and cause of        63.10032(g) and
                                   malfunctions.       (h) for
                                                       malfunctions
                                                       recordkeeping
                                                       requirements.

Sec.   63.10(c)(11).............  Recording           No. See
                                   corrective          63.10032(g) and
                                   actions.            (h) for
                                                       malfunctions
                                                       recordkeeping
                                                       requirements.
Sec.   63.10(c)(15).............  Use of SSM Plan...  No.
Sec.   63.10(d)(5)..............  SSM reports.......  No. See
                                                       63.10021(h) and
                                                       (i) for
                                                       malfunction
                                                       reporting
                                                       requirements.
Sec.   63.11....................  Control Device      No.
                                   Requirements.
Sec.   63.12....................  State Authority     Yes.
                                   and Delegation.
Sec.   63.13-63.16..............  Addresses,          Yes.
                                   Incorporation by
                                   Reference,
                                   Availability of
                                   Information,
                                   Performance Track
                                   Provisions.
Sec.   63.1(a)(5), (a)(7)-        Reserved..........  No.
 (a)(9), (b)(2), (c)(3)-(4),
 (d), 63.6(b)(6), (c)(3),
 (c)(4), (d), (e)(2),
 (e)(3)(ii), (h)(3), (h)(5)(iv),
 63.8(a)(3), 63.9(b)(3), (h)(4),
 63.10(c)(2)-(4), (c)(9).
------------------------------------------------------------------------

Appendix A to Subpart UUUUU--Hg Monitoring Provisions

1. General Provisions

    1.1 Applicability. These monitoring provisions apply to the
measurement of total vapor phase mercury (Hg) in emissions from
electric utility steam generating units, using either a mercury
continuous emission monitoring system (Hg CEMS) or a sorbent trap
monitoring system. The Hg CEMS or sorbent trap monitoring system
must be capable of measuring the total vapor phase mercury in units
of the applicable emissions standard (e.g., lb/TBtu or lb/GWh),
regardless of speciation.
    1.2 Initial Certification and Recertification Procedures. The
owner or operator of an affected unit that uses a Hg CEMS or a
sorbent trap monitoring system together with other necessary
monitoring components to account for Hg emissions in units of the
applicable emissions standard shall comply with the initial
certification and recertification procedures in section 4 of this
appendix.
    1.3 Quality Assurance and Quality Control Requirements. The
owner or operator of an affected unit that uses a Hg CEMS or a
sorbent trap monitoring system together with other necessary
monitoring components to account for Hg emissions in units of the
applicable emissions standard shall meet the applicable quality
assurance requirements in section 5 of this appendix.
    1.4 Missing Data Procedures. The owner or operator of an
affected unit is not required to substitute for missing data from Hg
CEMS or sorbent trap monitoring systems. Any process operating hour
for which quality-assured Hg concentration data are not obtained is
counted as an hour of monitoring system downtime.

2. Monitoring of Hg Emissions

    2.1 Monitoring System Installation Requirements. Flue gases from
the affected units under this subpart vent to the atmosphere through
a variety of exhaust configurations including single stacks, common
stack configurations, and multiple stack configurations. For each of
these configurations, Sec.  63.10010(a) specifies the appropriate
location(s) at which to install continuous monitoring systems (CMS).
These CMS installation provisions apply to the Hg CEMS, sorbent trap
monitoring systems, and other continuous monitoring systems that
provide data for the Hg emissions calculations in section 6.2 of
this appendix.
    2.2 Primary and Backup Monitoring Systems. In the electronic
monitoring plan described in section <IP_ADDRESS>.1 of this appendix, you
must designate a primary Hg CEMS or sorbent trap monitoring system.
The primary system must be used to report hourly Hg concentration
values when the system is able to provide quality-assured data,
i.e., when the system is ``in control''. However, to increase data
availability in the event of a primary monitoring system outage, you
may install, operate, maintain, and calibrate backup monitoring
systems, as follows:
    2.2.1 Redundant Backup Systems. A redundant backup monitoring
system may be either a separate Hg CEMS with its own probe, sample
interface, and analyzer, or a separate sorbent trap monitoring
system. A redundant backup system is one that is permanently
installed at the unit or stack location, and is kept on ``hot
standby'' in case the primary monitoring system is unable to provide
quality-assured data. A redundant backup system must be represented
as a unique monitoring system in the electronic monitoring plan.
Each redundant backup monitoring system must be certified according
to the applicable provisions in section 4 of this appendix and must
meet the applicable on-going QA requirements in section 5 of this
appendix.
    2.2.2 Non-redundant Backup Monitoring Systems. A non-redundant
backup monitoring system is a separate Hg CEMS or sorbent trap
system that has been certified at a particular unit or stack
location, but is not permanently installed at that location. Rather,
the system is kept on ``cold standby'' and may be reinstalled in the
event of a primary monitoring system outage. A non-redundant backup
monitoring system must be represented as a unique monitoring system
in the electronic monitoring plan. Non-redundant backup Hg CEMS must
complete the same certification tests as the primary monitoring
system, with one exception. The 7-day calibration error test is not
required for a non-redundant backup Hg CEMS. Except as otherwise
provided in section <IP_ADDRESS> of this appendix, a non-redundant backup
monitoring system may only be used for 720 hours per year at a
particular unit or stack location.
    2.2.3 Temporary Like-kind Replacement Analyzers. When a primary
Hg analyzer needs repair or maintenance, you may temporarily install
a like-kind replacement analyzer, to minimize data loss. Except as
otherwise provided in section <IP_ADDRESS> of this appendix, a temporary
like-kind replacement analyzer may only be used for 720 hours per
year at a particular unit or stack location. The analyzer must be
represented as a component of the primary Hg CEMS, and must be
assigned a 3-character component ID number, beginning with the
prefix ``LK''.
    2.2.4 Quality Assurance Requirements for Non-redundant Backup
Monitoring Systems and Temporary Like-kind Replacement Analyzers. To
quality-assure the data from non-redundant backup Hg monitoring
systems and temporary like-kind replacement Hg analyzers, the
following provisions apply:
    <IP_ADDRESS> When a certified non-redundant backup sorbent trap
monitoring system is brought into service, you must follow the
procedures for routine day-to-day operation of the system, in
accordance with Performance Specification (PS) 12B in appendix B to
part 60 of this chapter.
    <IP_ADDRESS> When a certified non-redundant backup Hg CEMS or a
temporary like-kind replacement Hg analyzer is brought into service,
a calibration error test and a linearity check must be performed and
passed. A single point system integrity check is also required,
unless a NIST-traceable source of oxidized Hg was used for the
calibration error test.
    <IP_ADDRESS> Each non-redundant backup Hg CEMS or temporary like-kind
replacement Hg analyzer shall comply with all required daily,
weekly, and quarterly quality-assurance test requirements in section
5 of this appendix, for as long as the system or analyzer remains in
service.
    <IP_ADDRESS> For the routine, on-going quality-assurance of a non-
redundant backup Hg monitoring system, a relative accuracy test
audit (RATA) must be performed and passed at least once every 8
calendar quarters at the

unit or stack location(s) where the system will be used.
    <IP_ADDRESS> To use a non-redundant backup Hg monitoring system or a
temporary like-kind replacement analyzer for more than 720 hours per
year at a particular unit or stack location, a RATA must first be
performed and passed at that location.

3. Mercury Emissions Measurement Methods

    The following definitions, equipment specifications, procedures,
and performance criteria are applicable to the measurement of vapor-
phase Hg emissions from electric utility steam generating units,
under relatively low-dust conditions (i.e., sampling in the stack or
duct after all pollution control devices). The analyte measured by
these procedures and specifications is total vapor-phase Hg in the
flue gas, which represents the sum of elemental Hg (Hg0,
CAS Number 7439-97-6) and oxidized forms of Hg.
    3.1 Definitions.
    3.1.1 Mercury Continuous Emission Monitoring System or Hg CEMS
means all of the equipment used to continuously determine the total
vapor phase Hg concentration. The measurement system may include the
following major subsystems: sample acquisition, Hg+2 to
Hg0 converter, sample transport, sample conditioning,
flow control/gas manifold, gas analyzer, and data acquisition and
handling system (DAHS). Hg CEMS may be nominally real-time or time-
integrated, batch sampling systems that sample the gas on an
intermittent basis and concentrate on a collection medium before
intermittent analysis and reporting.
    3.1.2 Sorbent Trap Monitoring System means the equipment
required to monitor Hg emissions continuously by using paired
sorbent traps containing iodated charcoal (IC) or other suitable
sorbent medium. The monitoring system consists of a probe, paired
sorbent traps, an umbilical line, moisture removal components, an
airtight sample pump, a gas flow meter, and an automated data
acquisition and handling system. The system samples the stack gas at
a constant proportional rate relative to the stack gas volumetric
flow rate. The sampling is a batch process. The average Hg
concentration in the stack gas for the sampling period is
determined, in units of micrograms per dry standard cubic meter
([mu]g/dscm), based on the sample volume measured by the gas flow
meter and the mass of Hg collected in the sorbent traps.
    3.1.3 NIST means the National Institute of Standards and
Technology, located in Gaithersburg, Maryland.
    3.1.4 NIST-Traceable Elemental Hg Standards means either:
compressed gas cylinders having known concentrations of elemental
Hg, which have been prepared according to the ``EPA Traceability
Protocol for Assay and Certification of Gaseous Calibration
Standards''; or calibration gases having known concentrations of
elemental Hg, produced by a generator that meets the performance
requirements of the ``EPA Traceability Protocol for Qualification
and Certification of Elemental Mercury Gas Generators'' or an
interim version of that protocol.
    3.1.5 NIST-Traceable Source of Oxidized Hg means a generator
that is capable of providing known concentrations of vapor phase
mercuric chloride (HgCl2), and that meets the performance
requirements of the ``EPA Traceability Protocol for Qualification
and Certification of Mercuric Chloride Gas Generators'' or an
interim version of that protocol.
    3.1.6 Calibration Gas means a NIST-traceable gas standard
containing a known concentration of elemental or oxidized Hg that is
produced and certified in accordance with an EPA traceability
protocol.
    3.1.7 Span Value means a conservatively high estimate of the Hg
concentrations to be measured by a CEMS. The span value of a Hg CEMS
should be set to approximately twice the concentration corresponding
to the emission standard, rounded off as appropriate (see section
<IP_ADDRESS>.2 of this appendix).
    3.1.8 Zero-Level Gas means calibration gas containing a Hg
concentration that is below the level detectable by the Hg gas
analyzer in use.
    3.1.9 Low-Level Gas means calibration gas with a concentration
that is 20 to 30 percent of the span value.
    3.1.10 Mid-Level Gas means calibration gas with a concentration
that is 50 to 60 percent of the span value.
    3.1.11 High-Level Gas means calibration gas with a concentration
that is 80 to 100 percent of the span value.
    3.1.12 Calibration Error Test means a test designed to assess
the ability of a Hg CEMS to measure the concentrations of
calibration gases accurately. A zero-level gas and an upscale gas
are required for this test. For the upscale gas, either a mid-level
gas or a high-level gas may be used, and the gas may either be an
elemental or oxidized Hg standard.
    3.1.13 Linearity Check means a test designed to determine
whether the response of a Hg analyzer is linear across its
measurement range. Three elemental Hg calibration gas standards
(i.e., low, mid, and high-level gases) are required for this test.
    3.1.14 System Integrity Check means a test designed to assess
the transport and measurement of oxidized Hg by a Hg CEMS. Oxidized
Hg standards are used for this test. For a three-level system
integrity check, low, mid, and high-level calibration gases are
required. For a single-level check, either a mid-level gas or a
high-level gas may be used.
    3.1.15 Cycle Time Test means a test designed to measure the
amount of time it takes for a Hg CEMS, while operating normally, to
respond to a known step change in gas concentration. For this test,
a zero gas and a high-level gas are required. The high-level gas may
be either an elemental or an oxidized Hg standard.
    3.1.16 Relative Accuracy Test Audit or RATA means a series of
nine or more test runs, directly comparing readings from a Hg CEMS
or sorbent trap monitoring system to measurements made with a
reference stack test method. The relative accuracy (RA) of the
monitoring system is expressed as the absolute mean difference
between the monitoring system and reference method measurements plus
the absolute value of the 2.5 percent error confidence coefficient,
divided by the mean value of the reference method measurements.
    3.1.17 Unit Operating Hour means a clock hour in which a unit
combusts any fuel, either for part of the hour or for the entire
hour.
    3.1.18 Stack Operating Hour means a clock hour in which gases
flow through a particular monitored stack or duct (either for part
of the hour or for the entire hour), while the associated unit(s)
are combusting fuel.
    3.1.19 Operating Day means a calendar day in which a source
combusts any fuel.
    3.1.20 Quality Assurance (QA) Operating Quarter means a calendar
quarter in which there are at least 168 unit or stack operating
hours (as defined in this section).
    3.1.21 Grace Period means a specified number of unit or stack
operating hours after the deadline for a required quality-assurance
test of a continuous monitor has passed, in which the test may be
performed and passed without loss of data.
    3.2 Continuous Monitoring Methods.
    3.2.1 Hg CEMS. A typical Hg CEMS is shown in Figure A-1. The
CEMS in Figure A-1 is a dilution extractive system, which measures
Hg concentration on a wet basis, and is the most commonly-used type
of Hg CEMS. Other system designs may be used, provided that the CEMS
meets the performance specifications in section 4.1.1 of this
appendix.

[GRAPHIC] [TIFF OMITTED] TR16FE12.012

    <IP_ADDRESS> Equipment Specifications.
    <IP_ADDRESS>.1 Materials of Construction. All wetted sampling system
components, including probe components prior to the point at which
the calibration gas is introduced, must be chemically inert to all
Hg species. Materials such as perfluoroalkoxy (PFA) Teflon\TM\,
quartz, and treated stainless steel (SS) are examples of such
materials.
    <IP_ADDRESS>.2 Temperature Considerations. All system components
prior to the Hg+2 to Hg\0\ converter must be maintained
at a sample temperature above the acid gas dew point.
    <IP_ADDRESS>.3 Measurement System Components.
    <IP_ADDRESS>.3.1 Sample Probe. The probe must be made of the
appropriate materials as noted in paragraph <IP_ADDRESS>.1 of this
section, heated when necessary, as described in paragraph
<IP_ADDRESS>.3.4 of this section, and configured with ports for
introduction of calibration gases.
    <IP_ADDRESS>.3.2 Filter or Other Particulate Removal Device. The
filter or other particulate removal device is part of the
measurement system, must be made of appropriate materials, as noted
in paragraph <IP_ADDRESS>.1 of this section, and must be included in all
system tests.
    <IP_ADDRESS>.3.3 Sample Line. The sample line that connects the probe
to the converter, conditioning system, and analyzer must be made of
appropriate materials, as noted in paragraph <IP_ADDRESS>.1 of this
section.
    <IP_ADDRESS>.3.4 Conditioning Equipment. For wet basis systems, such
as the one shown in Figure A-1, the sample must be kept above its
dew point either by: heating the sample line and all sample
transport components up to the inlet of the analyzer (and, for hot-
wet extractive systems, also heating the analyzer); or diluting the
sample prior to analysis using a dilution probe system. The
components required for these operations are considered to be
conditioning equipment. For dry basis measurements, a condenser,
dryer or other suitable device is required to remove moisture
continuously from the sample gas, and any equipment needed to heat
the probe or sample line to avoid condensation prior to the moisture
removal component is also required.
    <IP_ADDRESS>.3.5 Sampling Pump. A pump is needed to push or pull the
sample gas through the system at a flow rate sufficient to minimize
the response time of the measurement system. If a mechanical sample
pump is used and its surfaces are in contact with the sample gas
prior to detection, the pump must be leak free and must be
constructed of a material that is non-reactive to the gas being
sampled (see paragraph <IP_ADDRESS>.1 of this section). For dilution-type
measurement systems, such as the system shown in Figure A-1, an
ejector pump (eductor) may be used to create a sufficient vacuum
that sample gas will be drawn through a critical orifice at a
constant rate. The ejector pump must be constructed of any material
that is non-reactive to the gas being sampled.
    <IP_ADDRESS>.3.6 Calibration Gas System(s). Design and equip each Hg
CEMS to permit the introduction of known concentrations of elemental
Hg and HgCl2 separately, at a point preceding the sample
extraction filtration system, such that the entire measurement
system can be checked. The calibration gas system(s) must be
designed so that the flow rate exceeds the sampling system flow
requirements and that the gas is delivered to the CEMS at
atmospheric pressure.
    <IP_ADDRESS>.3.7 Sample Gas Delivery. The sample line may feed
directly to either a converter, a by-pass valve (for Hg speciating
systems), or a sample manifold. All valve and/or manifold components
must be made of material that is non-reactive to the gas sampled and
the calibration gas, and must be configured to safely discharge any
excess gas.
    <IP_ADDRESS>.3.8 Hg Analyzer. An instrument is required that
continuously measures the total vapor phase Hg concentration in the
gas stream. The analyzer may also be capable of measuring elemental
and oxidized Hg separately.
    <IP_ADDRESS>.3.9 Data Recorder. A recorder, such as a computerized
data acquisition and handling system (DAHS), digital recorder, or
data logger, is required for recording measurement data.
    <IP_ADDRESS> Reagents and Standards.
    <IP_ADDRESS>.1 NIST Traceability. Only NIST-certified or NIST-
traceable calibration gas standards and reagents (as defined in
paragraphs 3.1.4 and 3.1.5 of this section) shall be used for the
tests and procedures required under this subpart. Calibration gases
with known concentrations of Hg0 and HgCl2 are
required. Special reagents and equipment may be needed to prepare
the Hg0 and HgCl2 gas standards (e.g., NIST-
traceable solutions of HgCl2 and gas generators equipped
with mass flow controllers).
    <IP_ADDRESS>.2 Required Calibration Gas Concentrations.
    <IP_ADDRESS>.2.1 Zero-Level Gas. A zero-level calibration gas with a
Hg concentration below the level detectable by the Hg analyzer is
required for calibration error tests and cycle time tests of the
CEMS.
    <IP_ADDRESS>.2.2 Low-Level Gas. A low-level calibration gas with a Hg
concentration of 20 to 30 percent of the span value is required for
linearity checks and 3-level system integrity checks of the CEMS.
Elemental Hg standards are required for the linearity checks and
oxidized Hg standards are required for the system integrity checks.
    <IP_ADDRESS>.2.3 Mid-Level Gas. A mid-level calibration gas with a Hg
concentration of 50

to 60 percent of the span value is required for linearity checks and
for 3-level system integrity checks of the CEMS, and is optional for
calibration error tests and single-level system integrity checks.
Elemental Hg standards are required for the linearity checks,
oxidized Hg standards are required for the system integrity checks,
and either elemental or oxidized Hg standards may be used for the
calibration error tests.
    <IP_ADDRESS>.2.4 High-Level Gas. A high-level calibration gas with a
Hg concentration of 80 to 100 percent of the span value is required
for linearity checks, 3-level system integrity checks, and cycle
time tests of the CEMS, and is optional for calibration error tests
and single-level system integrity checks. Elemental Hg standards are
required for the linearity checks, oxidized Hg standards are
required for the system integrity checks, and either elemental or
oxidized Hg standards may be used for the calibration error and
cycle time tests.
    <IP_ADDRESS> Installation and Measurement Location. For the Hg CEMS
and any additional monitoring system(s) needed to convert Hg
concentrations to the desired units of measure (i.e., a flow
monitor, CO2 or O2 monitor, and/or moisture
monitor, as applicable), install each monitoring system at a
location: that is consistent with 63.10010(a); that represents the
emissions exiting to the atmosphere; and where it is likely that the
CEMS can pass the relative accuracy test.
    <IP_ADDRESS> Monitor Span and Range Requirements. Determine the
appropriate span and range value(s) for the Hg CEMS as described in