Wis. Admin. Code Department of Natural Resources NR 257.46
Except as provided in s. NR 211.13, any new source subject to this subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and achieve the following pretreatment standards for new sources:
Table 119
Core operation PSNS
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (lb/million off-lbs) of aluminum forged | ||
Chromium | 0.019 | 0.008 |
Cyanide | 0.010 | 0.004 |
Zinc | 0.051 | 0.021 |
TTO | 0.035 | |
Oil and grease (alternate monitoring parameter) | 0.50 | 0.50 |
Table 120
Forging scrubber liquor PSNS
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (lb/million off-lbs) of aluminum forged | ||
Chromium | 0.035 | 0.014 |
Cyanide | 0.019 | 0.008 |
Zinc | 0.096 | 0.040 |
TTO | 0.065 | |
Oil and grease (alternate monitoring parameter) | 0.95 | 0.95 |
Table 121
Solution heat treatment contact cooling water PSNS
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 | 0.16 |
Zinc | 2.08 | 0.86 |
TTO | 1.41 | |
Oil and grease (alternate monitoring parameter) | 20.37 | 20.37 |
Table 122
Cleaning or etching bath PSNS
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 | 0.067 | 0.027 |
Cyanide | 0.036 | 0.015 |
Zinc | 0.183 | 0.075 |
TTO | 0.124 | |
Oil and grease (alternate monitoring parameter) | 1.79 | 1.79 |
Table 123
Cleaning or etching rinse and hot water seal PSNS
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 |
TTO | 0.96 | |
Oil and grease (alternate monitoring parameter) | 13.91 | 13.91 |
Table 124
Cleaning or etching scrubber liquor PSNS
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 | 0.72 | 0.29 |
Cyanide | 0.39 | 0.16 |
Zinc | 1.97 | 0.812 |
TTO | 1.34 | |
Oil and grease (alternate monitoring parameter) | 19.33 | 19.33 |
Wis. Admin. Code Department of Natural Resources NR 257.46