Pretreatment standards for new sources.

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 a 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in primary nickel and cobalt process wastewater introduced into a POTW shall not exceed the following values: (a) Raw material dust control. PSNS for the Primary Nickel and Cobalt Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of copper, nickel, and cobalt in the crushed raw material Copper 0.099 0.047 Nickel 0.042 0.028 Ammonia (as N) 10.260 4.512 Cobalt 0.011 0.005 (b) Nickel wash water. PSNS for the Primary Nickel and Cobalt Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of nickel powder washed Copper 0.043 0.021 Nickel 0.019 0.013 Ammonia (as N) 4.515 1.985 Cobalt 0.005 0.002 (c) Nickel reduction decant. PSNS for the Primary Nickel and Cobalt Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) nickel produced Copper 16.250 7.744 Nickel 6.982 4.697 Ammonia (as N) 1,692.000 743.900 Cobalt 1.777 0.889 (d) Cobalt reduction decant. PSNS for the Primary Nickel and Cobalt Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of cobalt produced Copper 27.390 13.050 Nickel 11.770 7.917 Ammonia (as N) 2,852.000 1,254.000 Cobalt 2.996 1.498