40 CFR § 420.102
Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT)
June 9, 2020
CFR

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.

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

Subpart J

Open Table
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.00125 0.000626
O&G 0.000522 0.000209
Chromium1 0.0000209 0.0000084
Lead 0.0000094 0.0000031
Nickel1 0.0000188 0.0000063
Zinc 0.0000063 0.0000021
Naphthalene 0.0000021
Tetrachloroethylene 0.0000031
pH (2) (2)

1The 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.

2Within the range of 6.0 to 9.0.

(2) Recirculation—multiple stands.

Subpart J

Open Table
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.00626 0.00313
O&G 0.00261 0.00104
Chromium1 0.000104 0.0000418
Lead 0.0000469 0.0000156
Nickel1 0.0000939 0.0000313
Zinc 0.0000313 0.0000104
Naphthalene 0.0000104
Tetrachloroethylene 0.0000156
pH (2) (2)

1The 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.

2Within the range of 6.0 to 9.0.

(3) Combination.

Subpart J

Open Table
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.0751 0.0376
O&G 0.0313 0.0125
Chromium1 0.00125 0.000501
Lead 0.000563 0.000188
Nickel1 0.00113 0.000376
Zinc 0.000376 0.000125
Naphthalene 0.000125
Tetrachloroethylene 0.000188
pH (2) (2)

1The 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.

2Within the range of 6.0 to 9.0.

(4) Direct application—single stand.

Subpart J

Open Table
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.0225 0.0113
O&G 0.00939 0.00376
Chromium1 0.000376 0.000150
Lead 0.000169 0.0000563
Nickel1 0.000338 0.000113
Zinc 0.000113 0.0000376
Naphthalene 0.0000376
Tetrachloroethylene 0.0000563
pH (2) (2)

1The 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.

2Within the range of 6.0 to 9.0.

(5) Direct application—multiple stands.

Subpart J

Open Table
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.100 0.0501
O&G 0.0417 0.0167
Chromium1 0.00167 0.000668
Lead 0.000751 0.000250
Nickel1 0.00150 0.000501
Zinc 0.000501 0.000167
Naphthalene 0.000167
Tetrachloroethylene 0.000250
pH (2) (2)

1The 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.

2Within the range of 6.0 to 9.0.

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

Subpart J

Open Table
Pollutant of pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.00125 0.000626
O&G 0.000522 0.000209
Chromium1 0.0000209 0.0000084
Lead 0.0000094 0.0000031
Nickel1 0.0000188 0.0000063
Zinc 0.0000063 0.0000021
pH (2) (2)

1The 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.

2Within the range of 6.0 to 9.0.

(2) Using oil solutions.

Subpart J

Open Table
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.00125 0.000626
O&G 0.000522 0.000209
Chromium1 0.0000209 0.0000084
Lead 0.0000094 0.0000031
Nickel1 0.0000188 0.0000063
Zinc 0.0000063 0.0000021
Naphthalene 0.0000021
Tetrachloroethylene 0.0000031
pH (2) (2)

1The 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.

2Within the range of 6.0 to 9.0.

[47 FR 23284, May 27, 1982, as amended at 49 FR 21034, May 17, 1984; 49 FR 24726, June 15, 1984]


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