New source performance standards.

Any new source subject to this subpart must achieve the following performance standards. The discharge of wastewater pollutants from the core shall not exceed the values set forth below: Subpart F Core Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps Chromium 0.173 0.070 Cyanide 0.094 0.038 Zinc 0.476 0.196 Aluminum 2.85 1.27 Oil and grease 4.67 4.67 Suspended solids 7.00 5.60 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. Subpart F Continuous Rod 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 rod cast Chromium 0.0008 0.0003 Cyanide 0.0004 0.0002 Zinc 0.0020 0.0008 Aluminum 0.012 0.0053 Oil and grease 0.020 0.020 Suspended solids 0.030 0.024 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. Subpart F Continuous Rod Casting 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 rod cast Chromium 0.072 0.029 Cyanide 0.039 0.016 Zinc 0.198 0.081 Aluminum 1.184 0.526 Oil and grease 1.940 1.940 Suspended solids 2.91 2.33 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. Subpart F 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 0.754 0.31 Cyanide 0.408 0.16 Zinc 2.08 0.86 Aluminum 12.450 5.52 Oil and grease 20.37 20.37 Suspended solids 20.56 24.45 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. Subpart F 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 0.49 Oil and grease 1.79 1.79 Suspended solids 2.69 2.15 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. Subpart F 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 0.515 0.21 Cyanide 0.278 0.11 Zinc 1.42 0.59 Aluminum 8.50 3.77 Oil and grease 13.91 13.91 Suspended solids 20.87 16.70 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. Subpart F 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 0.72 0.290 Cyanide 0.387 0.155 Zinc 1.97 0.812 Aluminum 1.18 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 10.0 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11636, Mar. 27, 1984]