Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System
Chapter NR 273 - Nonferrous metals forming and metal powders
Subchapter VIII - Zinc
Section NR 273.083 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
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 BAT:
Table 8-12
Zinc
Rolling Spent Emulsions
|
BAT 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 |
0.0005 |
0.0002 |
|
Copper |
0.002 |
0.0009 |
|
Cyanide |
0.0003 |
0.0001 |
|
Zinc |
0.002 |
0.0006 |
Table 8-13
Zinc
Rolling Contact Cooling Water
|
BAT 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 |
0.020 |
0.009 |
|
Copper |
0.069 |
0.033 |
|
Cyanide |
0.011 |
0.004 |
|
Zinc |
0.055 |
0.023 |
Table 8-14
Zinc
Drawing Spent Emulsions
|
BAT 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 |
0.002 |
0.0009 |
|
Copper |
0.008 |
0.004 |
|
Cyanide |
0.001 |
0.0005 |
|
Zinc |
0.006 |
0.003 |
Table 8-15
Zinc
Direct Chill Casting Contact Cooling Water
|
BAT 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 |
0.019 |
0.008 |
|
Copper |
0.065 |
0.031 |
|
Cyanide |
0.010 |
0.004 |
|
Zinc |
0.052 |
0.021 |
Table 8-16
Zinc
Heat Treatment Contact Cooling Water
|
BAT 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 |
0.029 |
0.012 |
|
Copper |
0.098 |
0.047 |
|
Cyanide |
0.016 |
0.006 |
|
Zinc |
0.078 |
0.032 |
Table 8-17
Zinc
Surface Treatment Spent Baths
|
BAT 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 |
0.033 |
0.014 |
|
Copper |
0.114 |
0.054 |
|
Cyanide |
0.018 |
0.007 |
|
Zinc |
0.091 |
0.038 |
Table 8-18
Zinc
Surface Treatment Rinse
|
BAT 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 |
0.133 |
0.054 |
|
Copper |
0.457 |
0.219 |
|
Cyanide |
0.072 |
0.029 |
|
Zinc |
0.365 |
0.151 |
Table 8-19
Zinc
Alkaline Cleaning Spent Baths
|
BAT 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 |
0.0006 |
|
Copper |
0.005 |
0.002 |
|
Cyanide |
0.0007 |
0.0003 |
|
Zinc |
0.004 |
0.002 |
Table 8-20
Zinc
Alkaline Cleaning Rinse
|
BAT Effluent Limita |
tions |
|
|
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 |
0.626 |
0.254 |
|
Copper |
2.17 |
1.03 |
|
Cyanide |
0.338 |
0.135 |
|
Zinc |
1.73 |
0.710 |
Table 8-21
Zinc
Sawing or Grinding Spent Emulsions
|
BAT 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 |
0.009 |
0.004 |
|
Copper |
0.031 |
0.015 |
|
Cyanide |
0.005 |
0.002 |
|
Zinc |
0.025 |
0.010 |
Table 8-22
Zinc
Electrocoating Rinse
|
BAT 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 |
0.085 |
0.035 |
|
Copper |
0.293 |
0.140 |
|
Cyanide |
0.046 |
0.019 |
|
Zinc |
0.234 |
0.096 |
