Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System
Chapter NR 255 - Battery manufacturing
Subchapter IV - Lead Subcategory
Section NR 255.31 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
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 BPT:
Table 43
Closed Formation - Double Fill, or Fill and Dump
BPT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of lead used |
|
|
English units - |
lb/million lbs of lead used |
|
|
Copper |
0.86 |
0.45 |
|
Lead |
0.19 |
0.090 |
|
Iron |
0.54 |
0.27 |
|
Oil and grease |
9.00 |
5.40 |
|
TSS |
18.45 |
8.78 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
Table 44
Open Formation - Dehydrated
BPT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of lead used |
|
|
English units - |
lb/million lbs of lead used |
|
|
Copper |
20.99 |
11.06 |
|
Lead |
4.64 |
2.21 |
|
Iron |
16.13 |
6.74 |
|
Oil and grease |
221.00 |
132.60 |
|
TSS |
453.05 |
215.47 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
Table 45
Open Formation - Wet
BPT
|
POLLUTANT OR |
MAXIMUM FOR |
MAXIMUM FOR |
|
POLLUTANT PROPERTY |
ANY 1 DAY |
MONTHLY AVERAGE |
|
Metric units - |
mg/kg of lead used |
|
|
English units - |
lb/million lbs of lead used |
|
|
Copper |
0.10 |
0.05 |
|
Lead |
0.02 |
0.01 |
|
Iron |
0.06 |
0.03 |
|
Oil and grease |
1.06 |
0.64 |
|
TSS |
2.17 |
1.03 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
Table 46
Plate Soak
BPT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of lead used |
|
|
English units - |
lb/million lbs of lead used |
|
|
Copper |
0.040 |
0.020 |
|
Lead |
0.009 |
0.004 |
|
Iron |
0.030 |
0.010 |
|
Oil and grease |
0.420 |
0.250 |
|
TSS |
0.860 |
0.410 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
Table 47
Battery Wash with Detergent
BPT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of lead used |
|
|
English units - |
lb/million lbs of lead used |
|
|
Copper |
1.71 |
0.90 |
|
Lead |
0.38 |
0.18 |
|
Iron |
1.08 |
0.55 |
|
Oil and grease |
18.00 |
10.80 |
|
TSS |
36.90 |
17.55 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
Table 48
Battery Wash - Water Only
BPT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of lead used |
|
|
English units - |
lb/million lbs of lead used |
|
|
Copper |
1.12 |
0.59 |
|
Lead |
0.25 |
0.12 |
|
Iron |
0.71 |
0.36 |
|
Oil and grease |
11.80 |
7.08 |
|
TSS |
24.19 |
11.51 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
Table 49
Direct Chill Lead Casting
BPT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of lead used |
|
|
English units - |
lb/million lbs of lead used |
|
|
Copper |
0.00040 |
0.00020 |
|
Lead |
0.00008 |
0.00004 |
|
Iron |
0.00020 |
0.00010 |
|
Oil and grease |
0.00400 |
0.00200 |
|
TSS |
0.00800 |
0.00300 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
Table 50
Mold Release Formulation
BPT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of lead used |
|
|
English units - |
lb/million lbs of lead used |
|
|
Copper |
0.011 |
0.006 |
|
Lead |
0.002 |
0.001 |
|
Iron |
0.007 |
0.004 |
|
Oil and grease |
0.120 |
0.072 |
|
TSS |
0.246 |
0.117 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
Table 51
Truck Wash
BPT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units -mg/kg of lead in trucked batteries |
||
|
English units - lb/million lbs of lead in trucked batteries |
||
|
Copper |
0.026 |
0.014 |
|
Lead |
0.005 |
0.002 |
|
Iron |
0.016 |
0.006 |
|
Oil and grease |
0.280 |
0.168 |
|
TSS |
0.574 |
0.273 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
Table 52
Laundry
BPT
|
POLLUTANT OR POLLUTANT PROPERTY |
MAXIMUM FOR ANY 1 DAY |
MAXIMUM FOR MONTHLY AVERAGE |
|
Metric units - |
mg/kg of lead used |
|
|
English units - |
lb/million lbs of lead used |
|
|
Copper |
0.21 |
0.11 |
|
Lead |
0.05 |
0.02 |
|
Iron |
0.13 |
0.07 |
|
Oil and grease |
2.18 |
1.31 |
|
TSS |
4.47 |
2.13 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
Table 53
Miscellaneous Wastewater Streams
BPT
|
POLLUTANT OR |
MAXIMUM FOR |
MAXIMUM FOR |
|
POLLUTANT PROPERTY |
ANY 1 DAY |
MONTHLY AVERAGE |
|
Metric units - |
mg/kg of lead used |
|
|
English units - |
lb/million lbs of lead used |
|
|
Copper |
0.81 |
0.43 |
|
Lead |
0.18 |
0.09 |
|
Iron |
0.51 |
0.26 |
|
Oil and grease |
8.54 |
5.12 |
|
TSS |
17.51 |
8.33 |
|
pH |
(1) |
(1) |
1 Within 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 43 to 53.
