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 255.63 - New source performance standards
Current through August 26, 2024
(1) The discharge of wastewater pollutants from any new source subject to this subchapter may not exceed the following standards:
Table 100
Silver Chloride Cathodes - Chemically Reduced
NSPS
|
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 |
|
Iron |
98.28 |
49.96 |
|
TSS |
1,228.5 |
982.8 |
|
COD |
4,095.0 |
1,999.0 |
|
pH |
(1) |
(1) |
1Within the range of 7.5 to 10.0 at all times.
Table 101
Silver Chloride Cathodes - Electrolytic
NSPS
|
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 |
40.6 |
18.9 |
|
Silver |
42.1 |
17.4 |
|
Iron |
174.0 |
86.5 |
|
TSS |
2,175.0 |
1,740.0 |
|
COD |
7,250.0 |
3,540.0 |
|
pH |
(1) |
(1) |
1Within the range of 7.5 to 10.0 at all times.
Table 102
Cell Testing
NSPS
|
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 |
|
Iron |
63.1 |
32.1 |
|
TSS |
789.0 |
631.2 |
|
COD |
2,630.0 |
1,290.0 |
|
pH |
(1) |
(1) |
1Within the range of 7.5 to 10.0 at all times.
Table 103
Floor and Equipment Wash
NSPS
|
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 |
0.011 |
|
Iron |
0.112 |
0.057 |
|
COD |
1.41 |
1.13 |
|
TSS |
4.70 |
2.30 |
|
pH |
(1) |
(1) |
1Within the range of 7.5 to 10.0 at all times.
Table 104
Air Scrubber
NSPS
|
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 |
||
|
TSS |
8,467.0 |
4,030.0 |
|
pH |
(1) |
(1) |
1Within the range of 7.5 to 10.0 at all times.
(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 100 to 104.
