40 C.F.R. § 467.14
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.
40 C.F.R. §467.14