CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS (Parts 400–471) > PART 420—IRON AND STEEL MANUFACTURING POINT SOURCE CATEGORY > SUBPART J—Cold Forming Subcategory (§420.100 to §420.107) > 420.106—Pretreatment standards for new sources (PSNS).

420.106—Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any new 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 new sources.
(a) Cold rolling— (1) Recirculation—single stand.
Subpart J
Pollutant or pollutant property Pretreatment standards for new 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 new 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 0.0000418 0.0000167
Lead 0.0000188 0.0000063
Nickel 1 0.0000376 0.0000125
Zinc 0.0000125 0.0000042
Naphthalene 0.0000042
Tetrachloroethylene 0.0000063
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 new 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 0.000543 0.000217
Lead 0.000244 0.0000814
Nickel 1 0.000488 0.000163
Zinc 0.000163 0.0000542
Naphthalene 0.0000542
Tetrachloroethylene 0.0000813
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 new 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.
(5) Direct application—multiple stands.
Subpart J
Pollutant or pollutant property Pretreatment standards for new 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 0.00121 0.000484
Lead 0.000545 0.000182
Nickel 1 0.00109 0.000363
Zinc 0.000363 0.000121
Naphthalene 0.000121
Tetrachloroethylene 0.000182
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 new sources
Maximum for any one 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 new sources
Maximum for any one day Average of daily values for 30 consecutive days
kg/kkg (pound 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 wastewasters.
[47 FR 23284, May 27, 1982, as amended at 49 FR 21035, May 17, 1984]