Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System
Chapter NR 255 - Battery manufacturing
Subchapter VIII - Zinc Subcategory
Section NR 255.72 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
Current through August 26, 2024
(1) Except as provided in 40 CFR 125.30 to 125.32, any existing source subject to this subchapter shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of BAT:
Table 125
Wet Amalgamated Powder Anodes
BAT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of zinc |
|
|
English units - |
lb/million lbs of zinc |
|
|
Chromium |
0.24 |
0.099 |
|
Mercury |
0.14 |
0.056 |
|
Silver |
0.23 |
0.093 |
|
Zinc |
0.80 |
0.34 |
|
Manganese |
0.37 |
0.16 |
Table 126
Gelled Amalgam Anodes
BAT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of zinc |
|
|
English units - |
lb/million lbs of zinc |
|
|
Chromium |
0.030 |
0.012 |
|
Mercury |
0.017 |
0.007 |
|
Silver |
0.028 |
0.012 |
|
Zinc |
0.099 |
0.042 |
|
Manganese |
0.046 |
0.020 |
Table 127
Zinc Oxide Formed Anodes
BAT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of zinc |
|
|
English units - |
lb/million lbs of zinc |
|
|
Chromium |
9.53 |
3.90 |
|
Mercury |
5.42 |
2.17 |
|
Silver |
8.89 |
3.68 |
|
Zinc |
31.64 |
13.22 |
|
Manganese |
14.74 |
6.28 |
Table 128
Electrodeposited Anodes
BAT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of zinc deposited |
|
|
English units - |
lb/million lbs of zinc deposited |
|
|
Chromium |
94.47 |
38.65 |
|
Mercury |
53.68 |
21.47 |
|
Silver |
88.03 |
36.50 |
|
Zinc |
313.46 |
130.97 |
|
Manganese |
146.00 |
62.26 |
Table 129
Silver Powder Formed Cathodes
BAT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of silver applied |
|
|
English units - |
lb/million lbs of silver applied |
|
|
Chromium |
13.07 |
5.35 |
|
Mercury |
7.43 |
2.97 |
|
Silver |
12.18 |
5.05 |
|
Zinc |
43.36 |
18.12 |
|
Manganese |
20.20 |
8.61 |
Table 130
Silver Oxide Powder Formed Cathodes
BAT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of silver applied |
|
|
English units - |
lb/million lbs of silver applied |
|
|
Chromium |
8.73 |
3.57 |
|
Mercury |
4.96 |
1.99 |
|
Silver |
8.14 |
3.37 |
|
Zinc |
28.96 |
12.11 |
|
Manganese |
13.50 |
5.76 |
Table 131
Silver Peroxide Cathodes
BAT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of silver applied |
|
|
English units - |
lb/million lbs of silver applied |
|
|
Chromium |
2.09 |
0.87 |
|
Mercury |
1.19 |
9.48 |
|
Silver |
1.95 |
0.81 |
|
Zinc |
6.95 |
2.90 |
|
Manganese |
3.24 |
1.38 |
Table 132
Nickel Impregnated Cathodes
BAT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of nickel applied |
|
|
English units - |
lb/million lbs of nickel applied |
|
|
Chromium |
88.0 |
36.0 |
|
Mercury |
50.0 |
20.0 |
|
Nickel |
384.0 |
254.0 |
|
Silver |
82.0 |
34.0 |
|
Zinc |
292.0 |
122.0 |
|
Manganese |
136.0 |
58.0 |
Table 133
Miscellaneous Wastewater Streams
BAT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of cells produced |
|
|
English units - |
lb/million lbs of cells produced |
|
|
Chromium |
0.57 |
0.23 |
|
Cyanide |
0.38 |
0.16 |
|
Mercury |
0.32 |
0.13 |
|
Nickel |
2.48 |
1.64 |
|
Silver |
0.53 |
0.22 |
|
Zinc |
1.88 |
0.79 |
|
Manganese |
0.88 |
0.37 |
Table 134
Silver Etch
BAT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units -mg/kg of silver processed English units - lb/million lbs of silver processed |
||
|
Chromium |
3.27 |
1.34 |
|
Mercury |
1.86 |
0.74 |
|
Silver |
3.05 |
1.26 |
|
Zinc |
10.86 |
4.54 |
|
Manganese |
5.06 |
2.16 |
Table 135
Silver Peroxide Production
BAT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - mg/kg of silver in silver peroxide produced |
||
|
English units - lb/million lbs of silver in silver peroxide produced |
||
|
Chromium |
3.48 |
1.42 |
|
Mercury |
1.96 |
0.79 |
|
Silver |
3.24 |
1.34 |
|
Zinc |
11.56 |
4.83 |
|
Manganese |
5.36 |
2.29 |
Table 136
Silver Powder Production
BAT
|
POLLUTANT OR |
MAXIMUM FOR |
MAXIMUM FOR |
|
POLLUTANT PROPERTY |
ANY 1 DAY |
MONTHLY AVERAGE |
|
Metric units -mg/kg of silver powder produced English units -lb/million lbs of silver powder produced |
||
|
Chromium |
1.41 |
0.58 |
|
Mercury |
0.80 |
0.32 |
|
Silver |
1.32 |
0.55 |
|
Zinc |
4.69 |
1.96 |
|
Manganese |
2.18 |
0.93 |
(2) There may be no discharge allowance for process wastewater pollutants from any battery manufacturing operation other than those battery manufacturing operations listed in tables 125 to 136.
