New source performance standards.

Any new source subject to this subpart must achieve the following performance standards. The mass of pollutants in the core and ancillary operations' process wastewater shall not exceed the following values: Subpart A Core With an Annealing Furnace Scrubber Pollutant or pollutant property NSPS 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 0.0123 Cyanide 0.016 0.0065 Zinc 0.084 0.0343 Aluminum 0.499 0.221 Oil and grease 0.817 0.817 Suspended solids 1.225 0.980 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10 at all times. Subpart A Core Without an Annealing Furnace Scrubber Pollutant or pollutant property NSPS 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 0.0083 Cyanide 0.011 0.0044 Zinc 0.057 0.023 Aluminum 0.338 0.150 Oil and grease 0.553 0.553 Suspended solids 0.830 0.664 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10 at all times. Subpart A Continuous Sheet Casting Spent Lubricant Pollutant or pollutant property NSPS 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 Aluminum 0.012 0.0053 Oil and grease 0.0197 0.019 Suspended solids 0.0295 0.022 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10 at all times. Subpart A Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property NSPS 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 Aluminum 12.45 5.52 Oil and grease 20.37 20.37 Suspended solids 30.56 24.45 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10 at all times. Subpart A Cleaning or Etching Bath Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.066 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 Aluminum 1.094 0.485 Oil and grease 1.79 1.79 Suspended solids 2.69 2.15 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10 at all times. Subpart A Cleaning or Etching Rinse Pollutant or pollutant property NSPS 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 Aluminum 8.50 3.70 Oil and grease 13.91 13.91 Suspended solids 20.87 16.69 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10 at all times. Subpart A Cleaning or Etching Scrubber Liquor Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.715 0.29 Cyanide 0.387 0.16 Zinc 1.97 0.81 Aluminum 11.81 5.24 Oil and grease 19.33 19.33 Suspended solids 29.00 23.20 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, Mar. 27, 1984]