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]