Wis. Admin. Code NR § 257.45
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 113
Core operation PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (lb/million off-lbs) of aluminum forged | ||
Chromium | 0.022 | 0.009 |
Cyanide | 0.015 | 0.006 |
Zinc | 0.073 | 0.031 |
TTO | 0.035 | |
Oil and grease (alternate monitoring parameter) | 2.6 | 1.3 |
Table 114
Forging 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 forged | ||
Chromium | 0.042 | 0.017 |
Cyanide | 0.028 | 0.011 |
Zinc | 0.140 | 0.058 |
TTO | 0.065 | |
Oil and grease (alternate monitoring parameter) | 4.9 | 2.5 |
Table 115
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 | 0.897 | 0.37 |
Cyanide | 0.591 | 0.25 |
Zinc | 2.98 | 1.24 |
TTO | 1.41 | |
Oil and grease (alternate monitoring parameter) | 110.0 | 53.0 |
Table 116
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 | 0.032 |
Cyanide | 0.052 | 0.022 |
Zinc | 0.26 | 0.11 |
TTO | 0.123 | |
Oil and grease (alternate monitoring parameter) | 9.30 | 4.70 |
Table 117
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 | 1.7 | 0.7 |
Cyanide | 1.2 | 0.5 |
Zinc | 5.7 | 2.4 |
TTO | 2.7 | |
Oil and grease (alternate monitoring parameter) | 200.0 | 100.0 |
Table 118
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 | 0.851 | 0.35 |
Cyanide | 0.561 | 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 257.45