(a) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available:
(1) Subpart G--Wet Amalgamated Powder Anodes.
BPT Effluent Limitations------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
Metric units--mg/kg of
Zinc
English units--pounds per
1,000,000 pounds of Zinc
---------------------------Chromium.................................... 1.67 0.68Mercury..................................... 0.95 0.38Silver...................................... 1.56 0.65Zinc........................................ 5.55 2.32Manganese................................... 2.58 1.10Oil and grease.............................. 76.0 45.6TSS......................................... 155.8 74.1pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5-10.0 at all times.
(2) Subpart G--Gelled Amalgam Anodes.
BPT Effluent Limitations------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
Metric units--mg/kg of
Zinc
English units--pounds per
1,000,000 pounds of Zinc
--------------------------Chromium..................................... 0.30 0.12Mercury...................................... 0.17 0.07Silver....................................... 0.28 0.12Zinc......................................... 0.99 0.42Manganese.................................... 0.46 0.20Oil and grease............................... 13.6 8.16TSS.......................................... 27.9 13.26pH........................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5-10.0 at all times.
(3) Subpart G--Zinc Oxide, Formed Anodes.
BPT Effluent Limitations------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
Metric units--mg/kg of
Zinc
English units--pounds
per 1,000,000 pounds of
Zinc
-------------------------Chromium...................................... 62.9 25.7Mercury....................................... 35.8 14.3Silver........................................ 58.7 24.3Zinc.......................................... 208.8 87.2Manganese..................................... 97.2 41.5Oil and grease................................ 2,860.0 1,716.0TSS........................................... 5,863.0 2,789.0pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5-10.0 at all times.
(4) Subpart G--Electrodeposited Anodes.
BPT Effluent Limitations------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
Metric units--mg/kg of
zinc deposited
English units--pounds
per 1,000,000 pounds of
zinc deposited
-------------------------Chromium...................................... 1,404.0 574.0Mercury....................................... 798.0 319.0Silver........................................ 1,308.0 543.0Zinc.......................................... 4,657.0 1,946.0Manganese..................................... 2,169.0 925.0Oil and grease................................ 63,800.0 38,280.0TSS........................................... 130,700.0 62,210.0pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5-10.0 at all times.
(5) Subpart G--Silver Powder, Formed Cathodes.
BPT Effluent Limitations------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
Metric units--mg/kg of
silver applied
English units--pounds
per 1,000,000 pounds of
silver applied
-------------------------Chromium...................................... 86.2 35.3Mercury....................................... 49.0 19.6Silver........................................ 80.4 33.3Zinc.......................................... 286.2 119.6Manganese..................................... 133.3 56.8Oil and grease................................ 3,920.0 2,350.0TSS........................................... 8,036.0 3,822.0pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5-10.0 at all times.
(6) Subpart G--Silver Oxide Powder, Formed Cathodes.
BPT Effluent Limitations------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
Metric units--mg/kg of
silver applied
English units--pounds
per 1,000,000 pounds of
silver applied
-------------------------Chromium...................................... 57.7 23.6Mercury....................................... 32.8 13.1Silver........................................ 53.7 22.3Zinc.......................................... 191.3 79.9Manganese..................................... 89.1 38.0Oil and grease................................ 2,620.0 1,570.0TSS........................................... 5,370.0 2,554.0pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5-10.0 at all times.
(7) Subpart G--Silver Peroxide Cathodes.
BPT Effluent Limitations------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
Metric units--mg/kg of
silver applied
English units--pounds per
1,000,000 pounds of silver
applied
---------------------------Chromium.................................... 13.8 5.65Mercury..................................... 7.85 3.14Silver...................................... 12.9 5.34Zinc........................................ 45.8 19.2Manganese................................... 21.4 9.11Oil and grease.............................. 628.0 377.0TSS......................................... 1,287.0 612.0pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5-10.0 at all times.
(8) Subpart G--Nickel Impregnated Cathodes.
BPT Effluent Limitations------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
Metric units--mg/kg of
nickel applied
English units--pounds
per 1,000,000 pounds of
nickel applied
-------------------------Chromium...................................... 721.6 295.2Mercury....................................... 410.0 164.0Nickel........................................ 3,149.0 2,083.0Silver........................................ 672.4 279.0Zinc.......................................... 2,394.4 1,000.4Manganese..................................... 1,115.2 475.6Oil and grease................................ 32,800.0 19,680.0TSS........................................... 67,240.0 31,980.0pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5-10.0 at all times.
(9) Subpart G--Miscellaneous Wastewater Streams.
BPT Effluent Limitations------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
Metric units--mg/kg of
cells produced
English units--pounds
per 1,000,000 pounds of
cells produced
-------------------------Chromium...................................... 3.85 1.58Cyanide....................................... 2.54 1.05Mercury....................................... 2.19 0.88Nickel........................................ 16.82 11.12Silver........................................ 3.59 1.49Zinc.......................................... 12.79 5.34Manganese..................................... 5.96 2.54Oil and grease................................ 175.20 105.12TSS........................................... 359.16 170.82pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5-10.0 at all times.
(10) Subpart G--Silver Etch.
BPT Effluent Limitations------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
Metric units--mg/kg of
silver processed
English units--pounds per
1,000,000 pounds of
silver processed
--------------------------Chromium..................................... 21.6 8.84Mercury...................................... 12.3 4.91Silver....................................... 20.2 8.35Zinc......................................... 71.7 30.0Manganese.................................... 33.4 14.3Oil and grease............................... 982.0 589.2TSS.......................................... 2,013.1 957.5pH........................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5-10.0 at all times.
(11) Subpart G--Silver Peroxide Production.
BPT Effluent Limitations------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
Metric units--mg/kg of
silver peroxide processed
English units--pounds per
1,000,000 pounds of
silver peroxide processed
--------------------------Chromium..................................... 23.0 9.40Mercury...................................... 13.1 5.22Silver....................................... 21.4 8.88Zinc......................................... 76.2 31.80Manganese.................................... 35.5 15.10Oil and grease............................... 1,044.0 627.00TSS.......................................... 2,140.0 1,018.00pH........................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5-10.0 at all times.
(12) Subpart G--Silver Powder Production.
BPT Effluent Limitations------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
Metric units--mg/kg of
silver powder processed
English units--pounds per
1,000,000 pounds of silver
powder processed
---------------------------Chromium.................................... 9.33 3.82Mercury..................................... 5.30 2.12Silver...................................... 8.69 3.61Zinc........................................ 30.95 12.93Manganese................................... 14.42 6.15Oil and grease.............................. 424.0 254.40TSS......................................... 869.0 413.40pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5-10.0 at all times.
(b) There shall be no discharge allowance for process wastewater pollutants from any battery manufacturing operation other than those battery manufacturing operations listed above. [49 FR 9134, Mar. 9, 1984; 49 FR 13879, Apr. 9, 1984]