Regulations last checked for updates: May 03, 2025
Title 40 - Protection of Environment last revised: Nov 03, 2025
§ 461.70 - Applicability; description of the zinc subcategory.
This subpart applies to discharges to waters of the United States, and introductions of pollutants into publicly owned treatment works from the manufacturing of zinc anode batteries.
§ 461.71 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
(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.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of Zinc
|
| | English units—pounds per 1,000,000 pounds of Zinc
|
| Chromium | 1.67 | 0.68
|
| Mercury | 0.95 | 0.38
|
| Silver | 1.56 | 0.65
|
| Zinc | 5.55 | 2.32
|
| Manganese | 2.58 | 1.10
|
| Oil and grease | 76.0 | 45.6
|
| TSS | 155.8 | 74.1
|
| pH | (
1) | (
1)
|
(2) Subpart G—Gelled Amalgam Anodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of Zinc
|
| | English units—pounds per 1,000,000 pounds of Zinc
|
| Chromium | 0.30 | 0.12
|
| Mercury | 0.17 | 0.07
|
| Silver | 0.28 | 0.12
|
| Zinc | 0.99 | 0.42
|
| Manganese | 0.46 | 0.20
|
| Oil and grease | 13.6 | 8.16
|
| TSS | 27.9 | 13.26
|
| pH | (
1) | (
1)
|
(3) Subpart G—Zinc Oxide, Formed Anodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of Zinc
|
| | English units—pounds per 1,000,000 pounds of Zinc
|
| Chromium | 62.9 | 25.7
|
| Mercury | 35.8 | 14.3
|
| Silver | 58.7 | 24.3
|
| Zinc | 208.8 | 87.2
|
| Manganese | 97.2 | 41.5
|
| Oil and grease | 2,860.0 | 1,716.0
|
| TSS | 5,863.0 | 2,789.0
|
| pH | (
1) | (
1)
|
(4) Subpart G—Electrodeposited Anodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of zinc deposited
|
| | English units—pounds per 1,000,000 pounds of zinc deposited
|
| Chromium | 1,404.0 | 574.0
|
| Mercury | 798.0 | 319.0
|
| Silver | 1,308.0 | 543.0
|
| Zinc | 4,657.0 | 1,946.0
|
| Manganese | 2,169.0 | 925.0
|
| Oil and grease | 63,800.0 | 38,280.0
|
| TSS | 130,700.0 | 62,210.0
|
| pH | (
1) | (
1)
|
(5) Subpart G—Silver Powder, Formed Cathodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 86.2 | 35.3
|
| Mercury | 49.0 | 19.6
|
| Silver | 80.4 | 33.3
|
| Zinc | 286.2 | 119.6
|
| Manganese | 133.3 | 56.8
|
| Oil and grease | 3,920.0 | 2,350.0
|
| TSS | 8,036.0 | 3,822.0
|
| pH | (
1) | (
1)
|
(6) Subpart G—Silver Oxide Powder, Formed Cathodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 57.7 | 23.6
|
| Mercury | 32.8 | 13.1
|
| Silver | 53.7 | 22.3
|
| Zinc | 191.3 | 79.9
|
| Manganese | 89.1 | 38.0
|
| Oil and grease | 2,620.0 | 1,570.0
|
| TSS | 5,370.0 | 2,554.0
|
| pH | (
1) | (
1)
|
(7) Subpart G—Silver Peroxide Cathodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 13.8 | 5.65
|
| Mercury | 7.85 | 3.14
|
| Silver | 12.9 | 5.34
|
| Zinc | 45.8 | 19.2
|
| Manganese | 21.4 | 9.11
|
| Oil and grease | 628.0 | 377.0
|
| TSS | 1,287.0 | 612.0
|
| pH | (
1) | (
1)
|
(8) Subpart G—Nickel Impregnated Cathodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of nickel applied
|
| | English units—pounds per 1,000,000 pounds of nickel applied
|
| Chromium | 721.6 | 295.2
|
| Mercury | 410.0 | 164.0
|
| Nickel | 3,149.0 | 2,083.0
|
| Silver | 672.4 | 279.0
|
| Zinc | 2,394.4 | 1,000.4
|
| Manganese | 1,115.2 | 475.6
|
| Oil and grease | 32,800.0 | 19,680.0
|
| TSS | 67,240.0 | 31,980.0
|
| pH | (
1) | (
1)
|
(9) Subpart G—Miscellaneous Wastewater Streams.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of cells produced
|
| | English units—pounds per 1,000,000 pounds of cells produced
|
| Chromium | 3.85 | 1.58
|
| Cyanide | 2.54 | 1.05
|
| Mercury | 2.19 | 0.88
|
| Nickel | 16.82 | 11.12
|
| Silver | 3.59 | 1.49
|
| Zinc | 12.79 | 5.34
|
| Manganese | 5.96 | 2.54
|
| Oil and grease | 175.20 | 105.12
|
| TSS | 359.16 | 170.82
|
| pH | (
1) | (
1)
|
(10) Subpart G—Silver Etch.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver processed
|
| | English units—pounds per 1,000,000 pounds of silver processed
|
| Chromium | 21.6 | 8.84
|
| Mercury | 12.3 | 4.91
|
| Silver | 20.2 | 8.35
|
| Zinc | 71.7 | 30.0
|
| Manganese | 33.4 | 14.3
|
| Oil and grease | 982.0 | 589.2
|
| TSS | 2,013.1 | 957.5
|
| pH | (
1) | (
1)
|
(11) Subpart G—Silver Peroxide Production.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver peroxide processed
|
| | English units—pounds per 1,000,000 pounds of silver peroxide processed
|
| Chromium | 23.0 | 9.40
|
| Mercury | 13.1 | 5.22
|
| Silver | 21.4 | 8.88
|
| Zinc | 76.2 | 31.80
|
| Manganese | 35.5 | 15.10
|
| Oil and grease | 1,044.0 | 627.00
|
| TSS | 2,140.0 | 1,018.00
|
| pH | (
1) | (
1)
|
(12) Subpart G—Silver Powder Production.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver powder processed
|
| | English units—pounds per 1,000,000 pounds of silver powder processed
|
| Chromium | 9.33 | 3.82
|
| Mercury | 5.30 | 2.12
|
| Silver | 8.69 | 3.61
|
| Zinc | 30.95 | 12.93
|
| Manganese | 14.42 | 6.15
|
| Oil and grease | 424.0 | 254.40
|
| TSS | 869.0 | 413.40
|
| pH | (
1) | (
1)
|
(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]
§ 461.72 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
(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 available technology economically achievable:
(1) Subpart G—Wet Amalgamated Powder Anodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of Zinc
|
| | English units—pounds per 1,000,000 pounds of Zinc
|
| Chromium | 0.24 | 0.099
|
| Mercury | 0.14 | 0.055
|
| Silver | 0.23 | 0.093
|
| Zinc | 0.80 | 0.34
|
| Manganese | 0.37 | 0.16 |
(2) Subpart G—Gelled Amalgam Anodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of Zinc
|
| | English units—pounds per 1,000,000 pounds of Zinc
|
| Chromium | 0.030 | 0.012
|
| Mercury | 0.017 | 0.007
|
| Silver | 0.028 | 0.012
|
| Zinc | 0.099 | 0.042
|
| Manganese | 0.046 | 0.020 |
(3) Subpart G—Zinc Oxide Formed Anodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of Zinc
|
| | English units—pounds per 1,000,000 pounds of Zinc
|
| Chromium | 9.53 | 3.90
|
| Mercury | 5.42 | 2.17
|
| Silver | 8.89 | 3.68
|
| Zinc | 31.64 | 13.22
|
| Manganese | 14.74 | 6.28 |
(4) Subpart G—Electrodeposited Anodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of zinc deposited
|
| | English units—pounds per 1,000,000 pounds of zinc deposited
|
| Chromium | 94.47 | 38.65
|
| Mercury | 53.68 | 21.47
|
| Silver | 88.03 | 36.50
|
| Zinc | 313.46 | 130.97
|
| Manganese | 146.00 | 62.26 |
(5) Subpart G—Silver Powder Formed Cathodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 13.07 | 5.35
|
| Mercury | 7.43 | 2.97
|
| Silver | 12.18 | 5.05
|
| Zinc | 43.36 | 18.12
|
| Manganese | 20.20 | 8.61 |
(6) Subpart G—Silver Oxide Powder Formed Cathodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 8.73 | 3.57
|
| Mercury | 4.96 | 1.99
|
| Silver | 8.14 | 3.37
|
| Zinc | 28.98 | 12.11
|
| Manganese | 13.50 | 5.76 |
(7) Subpart G—Silver Peroxide Cathodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 2.09 | 0.87
|
| Mercury | 1.19 | 0.48
|
| Silver | 1.95 | 0.81
|
| Zinc | 6.95 | 2.90
|
| Manganese | 3.24 | 1.38 |
(8) Subpart G—Nickel Impregnated Cathodes.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of nickel applied
|
| | English units—pounds per 1,000,000 pounds of nickel applied
|
| Chromium | 88.0 | 36.0
|
| Mercury | 50.0 | 20.0
|
| Nickel | 384.0 | 254.0
|
| Silver | 82.0 | 34.0
|
| Zinc | 292.0 | 122.0
|
| Manganese | 136.0 | 58.0 |
(9) Subpart G—Miscellaneous Wastewater Streams.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of cells produced
|
| | English units—pounds per 1,000,000 pounds of cells produced
|
| Chromium | 0.57 | 0.23
|
| Cyanide | 0.38 | 0.16
|
| Mercury | 0.32 | 0.13
|
| Nickel | 2.48 | 1.64
|
| Silver | 0.53 | 0.22
|
| Zinc | 1.88 | 0.79
|
| Manganese | 0.88 | 0.37 |
(10) Subpart G—Silver Etch.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver processed
|
| | English units—pounds per 1,000,000 pounds of silver processed
|
| Chromium | 3.27 | 1.34
|
| Mercury | 1.86 | 0.74
|
| Silver | 3.05 | 1.26
|
| Zinc | 10.86 | 4.54
|
| Manganese | 5.06 | 2.16 |
(11) Subpart G—Silver Peroxide Production.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver peroxide produced
|
| | English units—pounds per 1,000,000 pounds of silver peroxide produced
|
| Chromium | 3.48 | 1.42
|
| Mercury | 1.98 | 0.79
|
| Silver | 3.24 | 1.34
|
| Zinc | 11.55 | 4.83
|
| Manganese | 5.38 | 2.29 |
(12) Subpart G—Silver Powder Production.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver powder produced
|
| | English units—pounds per 1,000,000 pounds of silver powder produced
|
| Chromium | 1.41 | 0.58
|
| Mercury | 0.80 | 0.32
|
| Silver | 1.32 | 0.55
|
| Zinc | 4.69 | 1.96
|
| Manganese | 2.18 | 0.93 |
(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]
§ 461.73 - New source performance standards. (NSPS).
(a) The discharge of wastewater pollutants from any new source subject to this subpart shall not exceed the standards set forth below:
(1) Subpart G—Zinc Oxide Formed Anodes—NSPS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of zinc
|
| | English units—pounds per 1,000,000 pounds of zinc
|
| Chromium | 4.55 | 1.97
|
| Mercury | 2.82 | 1.19
|
| Silver | 4.55 | 1.97
|
| Zinc | 0.87 | 0.39
|
| Manganese | 6.50 | 4.98
|
| Oil and grease | 216.7 | 216.7
|
| TSS | 325.0 | 260.0
|
| pH | (
1) | (
1)
|
(2) Subpart G—Electrodeposited Anodes—NSPS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of zinc deposited
|
| | English units—pounds per 1,000,000 pounds of zinc deposited
|
| Chromium | 45.09 | 19.54
|
| Mercury | 27.91 | 11.81
|
| Silver | 45.09 | 19.54
|
| Zinc | 8.59 | 3.86
|
| Manganese | 64.41 | 49.38
|
| Oil and grease | 2,147.00 | 2,147.00
|
| TSS | 3,220.50 | 2,576.40
|
| pH | (
1) | (
1)
|
(3) Subpart G—Silver Powder Formed Cathodes—NSPS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 6.24 | 2.70
|
| Mercury | 3.86 | 1.63
|
| Silver | 6.24 | 2.70
|
| Zinc | 1.19 | 0.53
|
| Manganese | 8.91 | 6.83
|
| Oil and grease | 297.00 | 297.00
|
| TSS | 445.5 | 356.40
|
| pH | (
1) | (
1)
|
(4) Subpart G—Silver Oxide Powder Formed Cathodes—NSPS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 4.17 | 1.81
|
| Mercury | 2.58 | 1.09
|
| Silver | 4.17 | 1.81
|
| Zinc | 0.79 | 0.36
|
| Manganese | 5.96 | 4.57
|
| Oil and grease | 198.5 | 198.5
|
| TSS | 297.8 | 238.2
|
| pH | (
1) | (
1)
|
(5) Subpart G—Silver Peroxide Cathodes—NSPS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 1.00 | 0.43
|
| Mercury | 0.62 | 0.26
|
| Silver | 1.00 | 0.43
|
| Zinc | 0.19 | 0.09
|
| Manganese | 1.43 | 1.09
|
| Oil and grease | 47.6 | 47.6
|
| TSS | 71.4 | 57.1
|
| pH | (
1) | (
1)
|
(6) Subpart G—Nickel Impregnated Cathodes—NSPS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of nickel applied
|
| | English units—pounds per 1,000,000 pounds of nickel applied
|
| Chromium | 42.0 | 18.2
|
| Mercury | 26.0 | 11.0
|
| Nickel | 42.0 | 18.2
|
| Silver | 42.0 | 18.2
|
| Zinc | 8.0 | 3.6
|
| Manganese | 60.0 | 46.0
|
| Oil and grease | 2,000.0 | 2,000.0
|
| TSS | 3,000.0 | 2,400.00
|
| pH | (
1) | (
1)
|
(7) Subpart G—Miscellaneous Wastewater Streams—NSPS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of cells produced
|
| | English units—pounds per 1,000,000 pounds of cells produced
|
| Chromium | 0.27 | 0.12
|
| Cyanide | 0.039 | 0.016
|
| Mercury | 0.17 | 0.07
|
| Nickel | 0.27 | 0.12
|
| Silver | 0.27 | 0.12
|
| Zinc | 0.05 | 0.02
|
| Manganese | 0.39 | 0.30
|
| Oil and grease | 12.90 | 12.90
|
| TSS | 19.35 | 15.48
|
| pH | (
1) | (
1)
|
(8) Subpart G—Silver Etch—NSPS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver processed
|
| | English units—pounds per 1,000,000 pounds of silver processed
|
| Chromium | 1.56 | 0.68
|
| Mercury | 0.97 | 0.41
|
| Silver | 1.56 | 0.68
|
| Zinc | 0.30 | 0.13
|
| Manganese | 2.23 | 1.71
|
| Oil and grease | 74.40 | 74.40
|
| TSS | 111.60 | 89.28
|
| pH | (
1) | (
1)
|
(9) Subpart G—Silver Peroxide Production—NSPS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver peroxide produced
|
| | English units—pounds per 1,000,000 pounds of silver peroxide produced
|
| Chromium | 1.66 | 0.72
|
| Mercury | 1.03 | 0.44
|
| Silver | 1.66 | 0.72
|
| Zinc | 0.32 | 0.14
|
| Manganese | 2.37 | 1.82
|
| Oil and grease | 79.10 | 79.10
|
| TSS | 118.65 | 94.92
|
| pH | (
1) | (
1)
|
(10) Subpart G—Silver Powder Production—NSPS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver powder produced
|
| | English units—pounds per 1,000,000 pounds of silver powder produced
|
| Chromium | 0.67 | 0.29
|
| Mercury | 0.42 | 0.18
|
| Silver | 0.67 | 0.29
|
| Zinc | 0.13 | 0.06
|
| Manganese | 0.96 | 0.74
|
| Oil and grease | 32.10 | 32.10
|
| TSS | 48.15 | 38.52
|
| pH | (
1) | (
1)
|
(b) There shall be no discharge allowance for process wastewater pollutants from any battery manufacturing operation other than those battery manufacturing operations listed above.
§ 461.74 - Pretreatment standards for existing sources (PSES).
(a) Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart that introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources:
(1) Subpart G—Wet Amalgamated Powder Anode—PSES.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of zinc
|
| | English units—pounds per 1,000,000 pounds of zinc
|
| Chromium | 0.24 | 0.099
|
| Mercury | 0.14 | 0.055
|
| Silver | 0.23 | 0.093
|
| Zinc | 0.80 | 0.34
|
| Manganese | 0.37 | 0.16 |
(2) Subpart G—Gelled Amalgam Anodes—PSES.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of zinc
|
| | English units—pounds per 1,000,000 pounds of zinc
|
| Chromium | 0.030 | 0.12
|
| Mercury | 0.017 | 0.006
|
| Silver | 0.028 | 0.012
|
| Zinc | 0.099 | 0.042
|
| Manganese | 0.046 | 0.020 |
(3) Subpart G—Zinc Oxide Formed Anodes—PSES.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of zinc
|
| | English units—pounds per 1,000,000 pounds of zinc
|
| Chromium | 9.53 | 3.90
|
| Mercury | 5.42 | 2.17
|
| Silver | 8.89 | 3.68
|
| Zinc | 31.64 | 13.22
|
| Manganese | 14.74 | 6.28 |
(4) Subpart G—Electrodeposited Anodes—PSES.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of zinc deposited
|
| | English units—pounds per 1,000,000 pounds of zinc deposited
|
| Chromium | 94.47 | 38.65
|
| Mercury | 53.68 | 21.47
|
| Silver | 88.03 | 36.50
|
| Zinc | 313.46 | 130.97
|
| Manganese | 146.00 | 62.26 |
(5) Subpart G—Silver Powder Formed Cathodes—PSES.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 13.07 | 5.35
|
| Mercury | 7.43 | 2.97
|
| Silver | 12.18 | 5.05
|
| Zinc | 43.36 | 18.12
|
| Maganese | 20.20 | 8.61 |
(6) Subpart G—Silver Oxide Powder Formed Cathodes—PSES.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 8.73 | 3.57
|
| Mercury | 4.96 | 1.99
|
| Silver | 8.14 | 3.37
|
| Zinc | 28.98 | 12.11
|
| Manganese | 13.50 | 5.76 |
(7) Subpart G—Silver Peroxide Cathodes—PSES.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 2.09 | 0.87
|
| Mercury | 1.19 | 0.48
|
| Silver | 1.95 | 0.81
|
| Zinc | 6.95 | 2.90
|
| Manganese | 3.24 | 1.38 |
(8) Subpart G—Nickel Impregnated Cathodes—PSES.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of nickel applied
|
| | English units—pounds per 1,000,000 pounds of nickel applied
|
| Chromium | 88.0 | 36.0
|
| Mercury | 50.0 | 20.0
|
| Nickel | 384.0 | 254.0
|
| Silver | 82.0 | 34.0
|
| Zinc | 292.0 | 122.0
|
| Manganese | 136.0 | 58.0 |
(9) Subpart G—Miscellaneous Wastewater Streams—PSES.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of cells produced
|
| | English units—pounds per 1,000,000 pounds of cells produced
|
| Chromium | 0.57 | 0.23
|
| Cyanide | 0.38 | 0.16
|
| Mercury | 0.32 | 0.13
|
| Nickel | 2.48 | 1.64
|
| Silver | 0.53 | 0.22
|
| Zinc | 1.88 | 0.79
|
| Manganese | 0.88 | 0.37 |
(10) Subpart G—Silver Etch—PSES.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver processed
|
| | English units—pounds per 1,000,000 pounds of silver processed
|
| Chromium | 3.27 | 1.34
|
| Mercury | 1.86 | 0.74
|
| Silver | 3.05 | 1.26
|
| Zinc | 10.86 | 4.54
|
| Manganese | 5.06 | 2.16 |
(11) Subpart G—Silver Peroxide Production—PSES.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver peroxide produced
|
| | English units—pounds per 1,000,000 pounds of silver peroxide produced
|
| Chromium | 3.48 | 1.42
|
| Mercury | 1.98 | 0.79
|
| Silver | 3.24 | 1.34
|
| Zinc | 11.55 | 4.83
|
| Manganese | 5.38 | 2.29 |
(12) Subpart G—Silver Powder Production—PSES.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver powder produced
|
| | English units—pounds per 1,000,000 pounds of silver powder produced
|
| Chromium | 1.41 | 0.58
|
| Mercury | 0.80 | 0.32
|
| Silver | 1.32 | 0.55
|
| Zinc | 4.69 | 1.96
|
| Manganese | 2.18 | 0.93 |
(b) There shall be no discharge allowance for process wastewater pollutants from any battery manufacturing operation other than those battery manufacturing operations listed above.
§ 461.75 -
(a) Except as provided in § 403.7 any new source subject to this subpart that introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources listed below:
(1) Subpart G—Zinc Oxide Formed Anodes—PSNS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of zinc
|
| | English units—pounds per 1,000,000 pounds of zinc
|
| Chromium | 4.55 | 1.97
|
| Mercury | 2.82 | 1.19
|
| Silver | 4.55 | 1.97
|
| Zinc | 0.87 | 0.39
|
| Manganese | 6.50 | 4.98 |
(2) Subpart G—Electrodeposited Anodes—PSNS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of zinc deposited
|
| | English units—pounds per 1,000,000 pounds of zinc deposited
|
| Chromium | 45.09 | 19.54
|
| Mercury | 27.91 | 11.81
|
| Silver | 45.09 | 19.54
|
| Zinc | 8.59 | 3.86
|
| Manganese | 64.41 | 49.38 |
(3) Subpart G—Silver Powder Formed Cathodes—PSNS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 6.24 | 2.70
|
| Mercury | 3.86 | 1.63
|
| Silver | 6.24 | 2.70
|
| Zinc | 1.19 | 0.53
|
| Manganese | 8.91 | 6.83 |
(4) Subpart G—Silver Oxide Powder Formed Cathodes—PSNS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 4.17 | 1.81
|
| Mercury | 2.58 | 1.09
|
| Silver | 4.17 | 1.81
|
| Zinc | 0.79 | 0.36
|
| Manganese | 5.96 | 4.57 |
(5) Subpart G—Silver Peroxide Cathodes—PSNS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver applied
|
| | English units—pounds per 1,000,000 pounds of silver applied
|
| Chromium | 1.00 | 0.43
|
| Mercury | 0.62 | 0.26
|
| Silver | 1.00 | 0.43
|
| Zinc | 0.19 | 0.09
|
| Manganese | 1.43 | 1.09 |
(6) Subpart G—Nickel Impregnated Cathodes—PSNS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of nickel applied
|
| | English units—pounds per 1,000,000 pounds of nickel applied
|
| Chromium | 42.0 | 18.2
|
| Mercury | 26.0 | 11.0
|
| Nickel | 42.0 | 18.2
|
| Silver | 42.0 | 18.2
|
| Zinc | 8.0 | 3.6
|
| Manganese | 60.0 | 46.0 |
(7) Subpart G—Miscellaneous Wastewater Streams—PSNS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of cells produced
|
| | English units—pounds per 1,000,000 pounds of cells produced
|
| Chromium | 0.27 | 0.12
|
| Cyanide | 0.039 | 0.016
|
| Mercury | 0.17 | 0.07
|
| Nickel | 0.27 | 0.12
|
| Silver | 0.27 | 0.12
|
| Zinc | 0.05 | 0.02
|
| Manganese | 0.39 | 0.30 |
(8) Subpart G—Silver Etch—PSNS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver processed
|
| | English units—pounds per 1,000,000 pounds of silver processed
|
| Chromium | 1.56 | 0.68
|
| Mercury | 0.97 | 0.41
|
| Silver | 1.56 | 0.68
|
| Zinc | 0.30 | 0.13
|
| Manganese | 2.23 | 1.71 |
(9) Subpart G—Silver Peroxide Production—PSNS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver peroxide produced
|
| | English units—pounds per 1,000,000 pounds of silver peroxide produced
|
| Chromium | 1.66 | 0.72
|
| Mercury | 1.03 | 0.44
|
| Silver | 1.66 | 0.72
|
| Zinc | 0.32 | 0.14
|
| Manganese | 2.37 | 1.82 |
(10) Subpart G—Silver Powder Production—PSNS.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | Metric units—mg/kg of silver powder produced
|
| | English units—pounds per 1,000,000 pounds of silver powder produced
|
| Chromium | 0.67 | 0.29
|
| Mercury | 0.42 | 0.18
|
| Silver | 0.67 | 0.29
|
| Zinc | 0.13 | 0.06
|
| Manganese | 0.96 | 0.74 |
(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]
authority: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 308 and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”);
33 U.S.C. 1311,
1314,
c,
e,
and, 1316 (b) and
c, 1317 (b) and
c,
and; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217
source: 49 FR 9134, Mar. 9, 1984, unless otherwise noted.
cite as: 40 CFR 461.73