Wis. Admin. Code NR § 273.082
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 application of BPT:
Table 8-1
Zinc
Rolling Spent Emulsions
BPT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of zinc rolled with emulsions | |
Chromium | 0.0006 | 0.0003 |
Copper | 0.003 | 0.002 |
Cyanide | 0.0004 | 0.0002 |
Zinc | 0.002 | 0.0009 |
Oil and grease | 0.028 | 0.017 |
Total suspended solids | 0.057 | 0.027 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 8-2
Zinc
Rolling Contact Cooling Water
BPT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of zinc rolled with contact cooling water | |
Chromium | 0.236 | 0.0097 |
Copper | 1.02 | 0.536 |
Cyanide | 0.156 | 0.065 |
Zinc | 0.783 | 0.327 |
Oil and grease | 10.7 | 6.43 |
Total suspended solids | 22.0 | 10.5 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 8-3
Zinc
Drawing Spent Emulsions
BPT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of zinc drawn with emulsions | |
Chromium | 0.003 | 0.001 |
Copper | 0.011 | 0.006 |
Cyanide | 0.002 | 0.0007 |
Zinc | 0.009 | 0.004 |
Oil and grease | 0.116 | 0.070 |
Total suspended solids | 0.238 | 0.113 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 8-4
Zinc
Direct Chill Casting Contact Cooling Water
BPT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off- pounds) of zinc cast by the direct chill method | |
Chromium | 0.222 | 0.091 |
Copper | 0.960 | 0.505 |
Cyanide | 0.147 | 0.061 |
Zinc | 0.738 | 0.308 |
Oil and grease | 10.1 | 6.06 |
Total suspended solids | 20.7 | 9.85 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 8-5
Zinc
Heat Treatment Contact Cooling Water
BPT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of zinc heat treated | |
Chromium | 0.336 | 0.138 |
Copper | 1.45 | 0.763 |
Cyanide | 0.221 | 0.092 |
Zinc | 1.12 | 0.466 |
Oil and grease | 15.3 | 9.16 |
Total suspended solids | 31.3 | 14.9 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 8-6
Zinc
Surface Treatment Spent Baths
BPT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of zinc surface treated | |
Chromium | 0.039 | 0.016 |
Copper | 0.169 | 0.089 |
Cyanide | 0.026 | 0.011 |
Zinc | 0.130 | 0.054 |
Oil and grease | 1.78 | 1.07 |
Total suspended solids | 3.64 | 1.73 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 8-7
Zinc
Surface Treatment Rinse
BPT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of zinc surface treated | |
Chromium | 1.58 | 0.645 |
Copper | 6.80 | 3.58 |
Cyanide | 1.04 | 0.430 |
Zinc | 5.23 | 2.19 |
Oil and grease | 71.6 | 43.0 |
Total suspended solids | 147 | 69.8 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 8-8
Zinc
Alkaline Cleaning Spent Baths
BPT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned | |
Chromium | 0.002 | 0.0007 |
Copper | 0.007 | 0.004 |
Cyanide | 0.001 | 0.0004 |
Zinc | 0.005 | 0.002 |
Oil and grease | 0.071 | 0.043 |
Total suspended solids | 0.146 | 0.069 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 8-9
Zinc
Alkaline Cleaning Rinse
BPT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned | |
Chromium | 0.744 | 0.304 |
Copper | 3.21 | 1.69 |
Cyanide | 0.490 | 0.203 |
Zinc | 2.47 | 1.03 |
Oil and grease | 33.8 | 20.3 |
Total suspended solids | 69.3 | 33.0 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 8-10
Zinc
Sawing or Grinding Spent Emulsions
BPT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of zinc sawed or ground with emulsions | |
Chromium | 0.011 | 0.005 |
Copper | 0.045 | 0.024 |
Cyanide | 0.007 | 0.003 |
Zinc | 0.035 | 0.015 |
Oil and grease | 0.476 | 0.286 |
Total suspended solids | 0.976 | 0.464 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 8-11
Zinc
Electrocoating Rinse
BPT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of zinc electrocoated | |
Chromium | 1.01 | 0.412 |
Copper | 4.35 | 2.29 |
Cyanide | 0.664 | 0.275 |
Zinc | 3.35 | 1.40 |
Oil and grease | 45.8 | 27.5 |
Total suspended solids | 93.9 | 44.7 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Wis. Admin. Code Department of Natural Resources § NR 273.082