Wis. Admin. Code NR § 257.63
Except as provided in 40 CFR 125.30 to 125.32, any existing point source subject to this subchapter shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of BAT:
Table 167
Core operation BAT
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps | ||
Chromium | 0.205 | 0.084 |
Cyanide | 0.135 | 0.056 |
Zinc | 0.681 | 0.285 |
Aluminum | 3.00 | 1.49 |
Table 168
Continuous rod casting spent lubricant BAT
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (lb/million off-lbs) of aluminum rod cast | ||
Chromium | 0.0009 | 0.0004 |
Cyanide | 0.0006 | 0.0003 |
Zinc | 0.0029 | 0.0012 |
Aluminum | 0.013 | 0.0063 |
Table 169
Continuous rod casting contact cooling water BAT
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (lb/million off-lbs) of aluminum rod cast | ||
Chromium | 0.086 | 0.035 |
Cyanide | 0.056 | 0.024 |
Zinc | 0.283 | 0.118 |
Aluminum | 1.25 | 0.62 |
Table 170
Solution heat treatment contact cooling water BAT
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (lb/million off-lbs) of aluminum quenched | ||
Chromium | 0.897 | 0.37 |
Cyanide | 0.591 | 0.25 |
Zinc | 2.98 | 1.24 |
Aluminum | 13.10 | 6.52 |
Table 171
Cleaning or etching bath BAT
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 | 0.079 | 0.032 |
Cyanide | 0.052 | 0.022 |
Zinc | 0.262 | 0.11 |
Aluminum | 1.15 | 0.57 |
Table 172
Cleaning or etching rinse and hot water seal BAT
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 | 0.612 | 0.251 |
Cyanide | 0.404 | 0.167 |
Zinc | 2.03 | 0.849 |
Aluminum | 8.95 | 4.45 |
Table 173
Cleaning or etching scrubber liquor BAT
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 | 0.85 | 0.348 |
Cyanide | 0.561 | 0.232 |
Zinc | 2.82 | 1.18 |
Aluminum | 12.43 | 6.19 |
Wis. Admin. Code Department of Natural Resources § NR 257.63