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 255.74 - Pretreatment standards for existing sources
Current through August 26, 2024
(1) Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subchapter that introduces pollutants into a POTW shall comply with 40 CFR Part 403 and achieve the following pretreatment standards for existing sources:
Table 147
Wet Amalgamated Powder Anode
PSES
|
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 |
0.055 |
|
Silver |
0.23 |
0.093 |
|
Zinc |
0.80 |
0.34 |
|
Manganese |
0.37 |
0.16 |
Table 148
Gelled Amalgam Anodes
PSES
|
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 |
0.12 |
|
Mercury |
0.017 |
0.006 |
|
Silver |
0.028 |
0.012 |
|
Zinc |
0.099 |
0.042 |
|
Manganese |
0.046 |
0.020 |
Table 149
Zinc Oxide Formed Anodes
PSES
|
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 150
Electrodeposited Anodes
PSES
|
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 151
Silver Powder Formed Cathodes
PSES
|
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 152
Silver Oxide Powder Formed Cathodes
PSES
|
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 |
28.98 |
12.11 |
|
Manganese |
13.50 |
5.76 |
Table 153
Silver Peroxide Cathodes
PSES
|
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 |
0.48 |
|
Silver |
1.95 |
0.81 |
|
Zinc |
6.95 |
2.90 |
|
Manganese |
3.24 |
1.38 |
Table 154
Nickel Impregnated Cathodes
PSES
|
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 155
Miscellaneous Wastewater Streams
PSES
|
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 156
Silver Etch
PSES
|
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 157
Silver Peroxide Production
PSES
|
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 |
1.98 |
0.79 |
|
Silver |
3.24 |
1.34 |
|
Zinc |
11.55 |
4.83 |
|
Manganese |
5.38 |
2.29 |
Table 158
Silver Powder Production
PSES
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR 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 147 to 158.
