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Electronic Code of Federal Regulations

e-CFR data is current as of December 4, 2019

Title 40Chapter ISubchapter NPart 461Subpart G → §461.73


Title 40: Protection of Environment
PART 461—BATTERY MANUFACTURING POINT SOURCE CATEGORY
Subpart G—Zinc Subcategory


§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 propertyMaximum for any 1 dayMaximum for monthly average
  Metric units—mg/kg of zinc
  English units—pounds per 1,000,000 pounds of zinc
Chromium4.551.97
Mercury2.821.19
Silver4.551.97
Zinc0.870.39
Manganese6.504.98
Oil and grease216.7216.7
TSS325.0260.0
pH(1)(1)

1Within the limits of 7.5-10.0 at all times.

(2) Subpart G—Electrodeposited Anodes—NSPS.

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
  Metric units—mg/kg of zinc deposited
  English units—pounds per 1,000,000 pounds of zinc deposited
Chromium45.0919.54
Mercury27.9111.81
Silver45.0919.54
Zinc8.593.86
Manganese64.4149.38
Oil and grease2,147.002,147.00
TSS3,220.502,576.40
pH(1)(1)

1Within the limits of 7.5-10.0 at all times.

(3) Subpart G—Silver Powder Formed Cathodes—NSPS.

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
  Metric units—mg/kg of silver applied
  English units—pounds per 1,000,000 pounds of silver applied
Chromium6.242.70
Mercury3.861.63
Silver6.242.70
Zinc1.190.53
Manganese8.916.83
Oil and grease297.00297.00
TSS445.5  356.40
pH(1)(1)

1Within the limits of 7.5-10.0 at all times.

(4) Subpart G—Silver Oxide Powder Formed Cathodes—NSPS.

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
  Metric units—mg/kg of silver applied
  English units—pounds per 1,000,000 pounds of silver applied
Chromium4.171.81
Mercury2.581.09
Silver4.171.81
Zinc0.790.36
Manganese5.964.57
Oil and grease198.5198.5
TSS297.8238.2
pH(1)(1)

1Within the limits of 7.5-10.0 at all times.

(5) Subpart G—Silver Peroxide Cathodes—NSPS.

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
  Metric units—mg/kg of silver applied
  English units—pounds per 1,000,000 pounds of silver applied
Chromium1.000.43
Mercury0.620.26
Silver1.000.43
Zinc0.190.09
Manganese1.431.09
Oil and grease47.647.6
TSS71.457.1
pH(1)(1)

1Within the limits of 7.5-10.0 at all times.

(6) Subpart G—Nickel Impregnated Cathodes—NSPS.

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
  Metric units—mg/kg of nickel applied
  English units—pounds per 1,000,000 pounds of nickel applied
Chromium42.018.2
Mercury26.011.0
Nickel42.018.2
Silver42.018.2
Zinc8.03.6
Manganese60.046.0
Oil and grease2,000.02,000.0
TSS3,000.02,400.00
pH(1)(1)

1Within the limits of 7.5-10.0 at all times.

(7) Subpart G—Miscellaneous Wastewater Streams—NSPS.

Pollutant or pollutant propertyMaximum 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
Chromium0.270.12
Cyanide0.0390.016
Mercury0.170.07
Nickel0.270.12
Silver0.270.12
Zinc0.050.02
Manganese0.390.30
Oil and grease12.9012.90
TSS19.3515.48
pH(1)(1)

1Within the limits of 7.5-10.0 at all times.

(8) Subpart G—Silver Etch—NSPS.

Pollutant or pollutant propertyMaximum 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
Chromium1.560.68
Mercury0.970.41
Silver1.560.68
Zinc0.300.13
Manganese2.231.71
Oil and grease74.4074.40
TSS111.6089.28
pH(1)(1)

1Within the limits of 7.5-10.0 at all times.

(9) Subpart G—Silver Peroxide Production—NSPS.

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
  Metric units—mg/kg of silver peroxide produced
  English units—pounds per 1,000,000 pounds of silver peroxide produced
Chromium1.660.72
Mercury1.030.44
Silver1.660.72
Zinc0.320.14
Manganese2.371.82
Oil and grease79.1079.10
TSS118.6594.92
pH(1)(1)

1Within the limits of 7.5-10.0 at all times.

(10) Subpart G—Silver Powder Production—NSPS.

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
  Metric units—mg/kg of silver powder produced
  English units—pounds per 1,000,000 pounds of silver powder produced
Chromium0.670.29
Mercury0.420.18
Silver0.670.29
Zinc0.130.06
Manganese0.960.74
Oil and grease32.1032.10
TSS48.1538.52
pH(1)(1)

1Within the limits 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.

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