40 CFR 461.12: 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 A—Electrodeposited Anodes.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

Metric units—mg/kg of cadmium

English units—pounds per 1,000,000 pounds of cadmium

Cadmium 11.95 5.27

Nickel 67.49 44.64

Zinc 51.32 21.44

Cobalt 7.38 3.16

(2) Subpart A—Impregnated Anodes.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

Metric units—mg/kg of cadmium

English units—pounds per 1,000,000 pounds of cadmium

Cadmium 68.0 30.0

Nickel 384.0 254.0

Zinc 292.0 122.0

Cobalt 42.0 18.0

(3) Subpart A—Nickel Electrodeposited Cathodes.

BAT Effluent Limitations

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

Cadmium 11.22 4.95

Nickel 63.36 41.91

Zinc 48.18 20.13

Cobalt 6.93 2.97

(4) Subpart A—Nickel Impregnated Cathodes.

BAT Effluent Limitations

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

Cadmium 68.0 30.0

Nickel 384.0 254.0

Zinc 292.0 122.0

Cobalt 42.0 18.0

(5) Subpart A—Miscellaneous Wastewater Streams.

BAT Effluent Limitations

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

Cadmium 0.79 0.35

Nickel 4.47 2.96

Zinc 3.40 1.42

Cobalt 0.49 0.21

(6) Subpart A—Cadmium Powder Production.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

Metric units—mg/kg of cadmium powder produced

English units—pounds per 1,000,000 pounds of cadmium powder produced

Cadmium 2.23 0.99

Nickel 12.61 8.34

Zinc 9.59 4.01

Cobalt 1.38 0.59

(7) Subpart A—Silver Powder Production.

BAT Effluent Limitations

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

Cadmium 1.09 0.48

Nickel 6.16 4.08

Silver 1.32 0.55

Zinc 4.69 1.96

Cobalt 0.67 0.29

(8) Subpart A—Cadmium Hydroxide Production.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

Metric units—mg/kg of cadmium used

English units—pounds per 1,000,000 pounds of cadmium used

Cadmium 0.05 0.02

Nickel 0.27 0.18

Zinc 0.20 0.09

Cobalt 0.03 0.01

(9) Subpart A—Nickel Hydroxide Production.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

Metric units—mg/kg of nickel used

English units—pounds per 1,000,000 pounds of nickel used

Cadmium 5.61 2.48

Nickel 31.68 20.96

Zinc 24.09 10.07

Cobalt 3.47 1.49

(b) There shall be no discharge allowance for process wastewater pollutants from any battery manufacturing operation other than those battery manufacturing operations listed above.