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 (PSNS). The mass of the wastewater introduced into a POTW shall not exceed the following values: (a) Rolling spent neat oils—subpart H—PSNS. There shall be no discharge of process wastewater pollutants. (b) Rolling spent emulsions. Subpart H—PSNS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of zinc rolled with emulsions Chromium 0.0005 0.0002 Copper 0.002 0.0009 Cyanide 0.0003 0.0001 Zinc 0.002 0.0006 (c) Rolling contact cooling water. Subpart H—PSNS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of zinc rolled with contact cooling water Chromium 0.020 0.008 Copper 0.069 0.033 Cyanide 0.011 0.004 Zinc 0.055 0.023 (d) Drawing spent emulsions. Subpart H—PSNS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of zinc drawn with emulsions Chromium 0.002 0.0009 Copper 0.008 0.004 Cyanide 0.001 0.0005 Zinc 0.006 0.003 (e) Direct chill casting contact cooling water. Subpart H—PSNS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of zinc cast by the direct chill method Chromium 0.019 0.008 Copper 0.065 0.031 Cyanide 0.010 0.004 Zinc 0.052 0.021 (f) Stationary casting contact cooling water—subpart H—PSNS. There shall be no discharge of process wastewater pollutants. (g) Heat treatment contact cooling water. Subpart H—PSNS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of zinc heat treated Chromium 0.029 0.012 Copper 0.098 0.047 Cyanide 0.016 0.006 Zinc 0.078 0.032 (h) Surface treatment spent baths. Subpart H—PSNS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of zinc surface treated Chromium 0.033 0.014 Copper 0.114 0.054 Cyanide 0.018 0.007 Zinc 0.091 0.038 (i) Surface treatment rinse. Subpart H—PSNS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of zinc surface treated Chromium 0.133 0.054 Copper 0.459 0.219 Cyanide 0.072 0.029 Zinc 0.365 0.151 (j) Alkaline cleaning spent baths. Subpart H—PSNS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned Chromium 0.002 0.0006 Copper 0.005 0.002 Cyanide 0.0007 0.0003 Zinc 0.004 0.002 (k) Alkaline cleaning rinse. Subpart H—PSNS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned Chromium 0.626 0.254 Copper 2.17 1.03 Cyanide 0.338 0.134 Zinc 1.73 0.710 (l) Sawing or grinding spent emulsions. Subpart H—PSNS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of zinc sawed or ground with emulsions Chromium 0.009 0.004 Copper 0.031 0.015 Cyanide 0.005 0.002 Zinc 0.025 0.010 (m) Electrocoating rinse. Subpart H—PSNS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of zinc electrocoated Chromium 0.085 0.035 Copper 0.293 0.140 Cyanide 0.046 0.019 Zinc 0.234 0.096 (n) Decreasing spent solvents—subpart H—PSNS. There shall be no discharge of process wastewater pollutants. [50 FR 34270, Aug. 23, 1985; 51 FR 2888, Jan. 22, 1986]