Title 40

SECTION 420.105

420.105 Pretreatment standards for existing sources (PSES).

§ 420.105 Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources.

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

Subpart J

Pollutant or pollutant property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
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

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 property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
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
Tetrachloroethylene 0.0000156

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 property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 1 0.00125 0.000501
Lead 0.000563 0.000188
Nickel 1 0.00113 0.000376
Zinc 0.000376 0.000125
Naphthalene 0.000125
Tetrachloroethylene 0.000188

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.

(4) Direct application - single stand.

Subpart J

Pollutant or pollutant property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 1 0.000376 0.000150
Lead 0.000169 0.0000563
Nickel 1 0.000338 0.000113
Zinc 0.000113 0.0000376
Naphthalene 0.0000376
Tetrachloroethylene 0.0000563

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 property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 1 0.00167 0.000668
Lead 0.000751 0.000250
Nickel 1 0.00150 0.000501
Zinc 0.000501 0.000167
Napthalene 0.000167
Tetrachloroethylene 0.000250

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 mills - (1) Using water.

Subpart J

Pollutant or pollutant property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
kg/kkg (pounds per 1,000 lb) of product
Chromium 1 0.0000209 0.0000084
Lead 0.0000094 0.0000031
Nickel 1 0.0000188 0.0000063
Zinc 0.0000063 0.0000021

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 property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
kg/kkg (pounds per 1,000 lb) of product
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

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.

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