Wis. Admin. Code Department of Natural Resources NR 257.36
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. Degassing operations may not discharge wastewater pollutants.
Table 99
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 extruded | ||
Chromium | 0.13 | 0.05 |
Cyanide | 0.07 | 0.03 |
Zinc | 0.35 | 0.15 |
TTO | 0.24 | |
Oil and grease (alternate monitoring parameter) | 3.40 | 3.40 |
Table 100
Extrusion press leakage PSNS
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (lb/million off-lbs) of aluminum extruded | ||
Chromium | 0.11 | 0.05 |
Cyanide | 0.06 | 0.03 |
Zinc | 0.31 | 0.13 |
TTO | 0.21 | |
Oil and grease (alternate monitoring parameter) | 2.98 | 2.98 |
Table 101
Direct chill casting 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 cast | ||
Chromium | 0.49 | 0.20 |
Cyanide | 0.27 | 0.11 |
Zinc | 1.36 | 0.56 |
TTO | 0.92 | |
Oil and grease (alternate monitoring parameter) | 13.29 | 13.29 |
Table 102
Press 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 | 0.17 |
Zinc | 2.08 | 0.86 |
TTO | 1.41 | |
Oil and grease (alternate monitoring parameter) | 20.37 | 20.37 |
Table 103
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 | 0.17 |
Zinc | 2.08 | 0.86 |
TTO | 1.41 | |
Oil and grease (alternate monitoring parameter) | 20.37 | 20.37 |
Table 104
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 105
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 106
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 | 0.81 |
TTO | 1.34 | |
Oil and grease (alternate monitoring parameter) | 19.33 | 19.33 |
Wis. Admin. Code Department of Natural Resources NR 257.36