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 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the following values: Subpart A Core With an Annealing Furnace Scrubber Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.030 0.013 Cyanide 0.017 0.007 Zinc 0.084 0.035 TTO 0.057 Oil and grease (alternate monitoring parameter) 0.817 0.817 Subpart A Core Without an Annealing Furnace Scrubber Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.021 0.009 Cyanide 0.011 0.005 Zinc 0.057 0.024 TTO 0.038 Oil and grease (alternate monitoring parameter) 0.54 0.54 Subpart A Continuous Sheet Casting Lubricant Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.00073 0.00029 Cyanide 0.00039 0.00016 Zinc 0.0020 0.00082 TTO 0.0014 Oil and grease (alternate monitoring parameter) 0.020 0.020 Subpart A Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.76 0.31 Cyanide 0.41 0.17 Zinc 2.08 0.86 TTO 1.41 Oil and grease (alternate monitoring parameter) 20.37 20.37 Subpart A Cleaning or Etching Bath Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.067 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 TTO 0.124 Oil and grease (alternate monitoring parameter) 1.79 1.79 Subpart A Cleaning or Etching Rinse Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.52 0.21 Cyanide 0.28 0.11 Zinc 1.42 0.59 TTO 0.96 Oil and grease (alternate monitoring parameter) 13.91 13.91 Subpart A Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.72 0.29 Cyanide 0.39 0.16 Zinc 1.97 0.81 TTO 1.34 Oil and grease (alternate monitoring parameter) 19.33 19.33 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, Mar. 27, 1984]