40 C.F.R. § 420.103

Current through September 30, 2024
Section 420.103 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT)

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.

(a)Cold rolling mills -
(1)Recirculation-single stand.

Subpart J

Pollutant or pollutant propertyBAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium10.00002090.0000084
Lead0.00000940.0000031
Nickel10.00001880.0000063
Zinc0.00000630.0000021
Naphthalene0.0000021
Tetrachloroethylene0.0000031

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(2)Recirculation-multiple stands.

Subpart J

Pollutant or pollutant propertyBAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium10.0001040.0000418
Lead0.00004690.0000156
Nickel10.00009390.0000313
Zinc0.00003130.0000104
Naphthalene0.0000104
Tetrachloroethylene0.0000156

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(3)Combination.

Subpart J

Pollutant or pollutant propertyBAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium10.001250.000501
Lead0.0005630.000188
Nickel10.001130.000376
Zinc0.0003760.000125
Naphthalene0.000125
Tetrachloroethylene0.000188

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are cotreated with descaling or combination acid pickling wastewaters.

(4)Direct application-single stand.

Subpart J

Pollutant or pollutant propertyBAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium10.0003760.000150
Lead0.0001690.0000563
Nickel10.0003380.000113
Zinc0.0001130.0000376
Naphthalene0.0000376
Tetrachloroethylene0.0000563

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(5)Direct application-multiple stands.

Subpart J

Pollutant or pollutant propertyBAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium10.001670.000668
Lead0.0007510.000250
Nickel10.001500.000501
Zinc0.0005010.000167
Naphthalene0.000167
Tetrachloroethylene0.000250

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(b)Cold worked pipe and tube -
(1)Using water.

Subpart J

Pollutant or pollutant propertyBAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium10.00002090.0000084
Lead0.00000940.0000031
Nickel10.00001880.0000063
Zinc0.00000630.0000021

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are treated with descaling or combination acid pickling wastewaters.

(2)Using oil solutions.

Subpart J

Pollutant or pollutant propertyBAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium10.00002090.0000084
Lead0.00000940.0000031
Nickel10.00001880.0000063
Zinc0.00000630.0000021
Naphthalene0.0000021
Tetrachloroethylene0.0000031

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are treated with descaling or combination acid pickling wastewaters.

40 C.F.R. §420.103

47 FR 23284, May 27, 1982, as amended at 49 FR 21035, May 17, 1984