Wis. Admin. Code Department of Natural Resources NR 257.14
Any new source subject to this subchapter shall achieve the following performance standards:
Table 15
Core with an annealing furnace scrubber NSPS
Pollutant or pollutant property | 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.
Table 16
Core without an annealing furnace scrubber NSPS
Pollutant or pollutant property | 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.
Table 17
Continuous sheet casting spent lubricant NSPS
Pollutant or pollutant property | 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.
Table 18
Solution heat treatment contact cooling water NSPS
Pollutant or pollutant property | 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.
Table 19
Cleaning or etching bath NSPS
Pollutant or pollutant property | 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.
Table 20
Cleaning or etching rinse and hot water seal NSPS
Pollutant or pollutant property | 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.
Table 21
Cleaning or etching scrubber liquor NSPS
Pollutant or pollutant property | 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.
Wis. Admin. Code Department of Natural Resources NR 257.14