Wis. Admin. Code Department of Natural Resources NR 257.15
Except as provided in ss. NR 211.13 and 211.14, any existing source subject to this subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and achieve the following pretreatment standards for existing sources:
Table 22
Core with an annealing furnace scrubber PSES
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 | 0.036 | 0.015 |
Cyanide | 0.024 | 0.010 |
Zinc | 0.119 | 0.050 |
TTO | 0.057 | |
Oil and grease (alternate monitoring parameter) | 4.30 | 2.10 |
Table 23
Core without an annealing furnace scrubber PSES
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 | 0.025 | 0.010 |
Cyanide | 0.016 | 0.007 |
Zinc | 0.081 | 0.034 |
TTO | 0.038 | |
Oil and grease (alternate monitoring parameter) | 2.90 | 1.50 |
Table 24
Continuous sheet casting lubricant PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (lb/million off-lbs) of aluminum cast | ||
Chromium | 0.00086 | 0.00035 |
Cyanide | 0.00057 | 0.00024 |
Zinc | 0.0029 | 0.0012 |
TTO | 0.0014 | |
Oil and grease (alternate monitoring parameter) | 0.100 | 0.052 |
Table 25
Solution heat treatment contact cooling water PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (lb/million off-lbs) of aluminum quenched | ||
Chromium | 0.90 | 0.37 |
Cyanide | 0.59 | 0.25 |
Zinc | 2.98 | 1.25 |
TTO | 1.41 | |
Oil and grease (alternate monitoring parameter) | 110.0 | 53.0 |
Table 26
Cleaning or etching bath PSES
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 | 0.0032 |
Cyanide | 0.052 | 0.022 |
Zinc | 0.262 | 0.109 |
TTO | 0.124 | |
Oil and grease (alternate monitoring parameter) | 9.30 | 4.70 |
Table 27
Cleaning or etching rinse and hot water seal PSES
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 | 0.61 | 0.25 |
Cyanide | 0.41 | 0.17 |
Zinc | 2.03 | 0.85 |
TTO | 0.96 | |
Oil and grease (alternate monitoring parameter) | 73.0 | 36.0 |
Table 28
Cleaning or etching scrubber liquor PSES
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 | 0.35 |
Cyanide | 0.56 | 0.23 |
Zinc | 2.82 | 1.18 |
TTO | 1.34 | |
Oil and grease (alternate monitoring parameter) | 100.0 | 50.0 |
Wis. Admin. Code Department of Natural Resources NR 257.15