40 CFR 420.104 - New source performance standards (NSPS).

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§ 420.104 New source performance standards (NSPS).

The discharge of wastewater pollutants from any new source subject to this subpart shall not exceed the standards set forth below.

(a) Cold rolling mills -

(1) Recirculation - single stand.

Subpart J

Pollutant or pollutant property New source performance standards
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
Chromium 1 0.0000209 0.0000084
Lead 0.0000094 0.0000031
Nickel 1 0.0000188 0.0000063
Zinc 0.0000063 0.0000021
Naphthalene 0.0000021
Tetrachloroethylene 0.0000031
pH ( 2) ( 2)

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.

2 Within the range of 6.0 to 9.0.

(2) Recirculation - multiple stands.

Subpart J

Pollutant or pollutant property New source performance standards
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.00250 0.00125
O&G 0.00104 0.000417
Chromium 1 0.0000418 0.0000167
Lead 0.0000188 0.0000063
Nickel 1 0.0000376 0.0000125
Zinc 0.0000125 0.0000042
Naphthalene 0.0000042
Tetrachloroethylene 0.0000063
pH ( 2) ( 2)

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 Within the range of 6.0 to 9.0.

(3) Combination.

Subpart J

Pollutant or pollutant property New source performance standards
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.0326 0.0163
O&G 0.0136 0.00543
Chromium 1 0.000543 0.000217
Lead 0.000244 0.0000814
Nickel 1 0.000488 0.000163
Zinc 0.000163 0.0000542
Naphthalene 0.0000542
Tetrachloroethylene 0.0000813
pH ( 2) ( 2)

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

2 Within the range of 6.0 to 9.0.

(4) Direct application - single stand.

Subpart J

Pollutant or pollutant property New source performance standards
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
Chromium 1 0.000104 0.0000418
Lead 0.0000469 0.0000156
Nickel 1 0.0000939 0.0000313
Zinc 0.0000313 0.0000104
Naphthalene 0.0000104
Tetrachloro-ethylene 0.0000156
pH ( 2) ( 2)

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 watewaters.

2 Within the range of 6.0 to 9.0.

(5) Direct application - multiple stands.

Subpart J

Pollutant or pollutant property New source performance standards
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.0726 0.0363
O&G 0.0302 0.0121
Chromium 1 0.00121 0.000484
Lead 0.000545 0.000182
Nickel 1 0.00109 0.000363
Zinc 0.000363 0.000121
Naphthalene 0.000121
Tetrachloro-ethylene 0.000182
pH ( 2) ( 2)

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 watewaters.

2 Within the range of 6.0 to 9.0.

(b) Cold worked pipe and tube mills -

(1) Using water.

Subpart J

Pollutant or pollutant property New source performance standards
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
Chromium 1 0.0000209 0.0000084
Lead 0.0000094 0.0000031
Nickel 1 0.0000188 0.0000063
Zinc 0.0000063 0.0000021
pH ( 2) ( 2)

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

2 Within the range of 6.0 to 9.0.

(2) Using oil solutions.

Subpart J

Pollutant or pollutant property New Source Performance Standards
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
Chromium 1 0.0000209 0.0000084
Lead 0.0000094 0.0000031
Nickel 1 0.0000188 0.0000063
Zinc 0.0000063 0.0000021
Naphthalene 0.0000021
Tetrachloroethylene 0.0000031
pH ( 2) ( 2)

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

2 Within the range of 6.0 to 9.0.

[47 FR 23284, May 27, 1982, as amended at 49 FR 21035, May 17, 1984; 49 FR 24726, June 15, 1984]

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