Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System
Chapter NR 255 - Battery manufacturing
Subchapter VII - Magnesium Subcategory
Section NR 255.65 - Pretreatment standards for new sources
Current through August 26, 2024
(1) Except as provided in 40 CFR 403.7, any new 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 new sources:
Table 109
Silver Chloride Cathodes - Chemically Reduced
PSNS
|
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 |
|
|
Lead |
22.93 |
10.65 |
|
Silver |
23.75 |
9.83 |
Table 110
Silver Chloride Cathodes - Electrolytic
PSNS
|
POLLUTANT OR |
MAXIMUM FOR |
MAXIMUM FOR |
|
POLLUTANT PROPERTY |
ANY 1 DAY |
MONTHLY AVERAGE |
|
Metric units -mg/kg of silver processed English units -lb/million lbs of silver processed |
||
|
Lead |
40.6 |
18.9 |
|
Silver |
42.1 |
17.4 |
Table 111
Cell Testing
PSNS
|
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 |
||
|
Lead |
19.5 |
7.89 |
|
Silver |
15.3 |
6.31 |
Table 112
Floor and Equipment Wash
PSNS
|
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 |
||
|
Lead |
0.026 |
0.012 |
|
Silver |
0.027 |
0.001 |
(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 109 to 112.
