Wisconsin Administrative Code › Department of Natural Resources › NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System › Chapter NR 255 - Battery manufacturing › Subchapter II - Cadmium Subcategory › Section NR 255.11 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

Current through June 24, 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 1
Pasted and Pressed Powder Anodes
BPT
POLLUTANT OR POLLUTANT PROPERTY
MAXIMUM FOR ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units - mg/kg of cadmium
English units - lb/million lbs of cadmium
Cadmium
0.92
0.41
Nickel
5.18
3.43
Zinc
3.94
1.65
Cobalt
0.57
0.24
Oil and grease
54.00
32.40
TSS
111.00
52.65
pH
(1)
(1)
1 Within the range of 7.5 to
					 10.0 at all times.
Table 2
Electrodeposited Anodes
BPT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -
mg/kg of cadmium
English units -
lb/million lbs of cadmium
Cadmium
237.0
104.6
Nickel
1,338.2
885.2
Zinc
1,017.6
425.2
Cobalt
146.4
62.7
Oil and grease
13,940.0
8,364.0
TSS
28,577.0
13,592.0
(1)
(1)
1 Within the range of 7.5 to
					 10.0 at all times.
Table 3
Impregnated Anodes
BPT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -
mg/kg of cadmium
English units -
lb/million lbs of cadmium
Cadmium
339.3
149.7
Nickel
1,916.2
1,267.5
Zinc
1,457.1
608.8
Cobalt
209.6
89.8
Oil and grease
19,960.0
11,976.0
TSS
40,918.0
19,461.0
pH
(1)
(1)
1 Within the range of 7.5 to
					 10.0 at all times.
Table 4
Nickel Electrodeposited Cathodes
BPT
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
Cadmium
193.5
85.4
Nickel
1,092.5
722.6
Zinc
830.7
347.1
Cobalt
119.5
51.2
Oil and grease
11,380.0
6,828.0
TSS
23,329.0
11,095.5
pH
(1)
(1)
1 Within the range of 7.5 to
					 10.0 at all times.
Table 5
Nickel Impregnated Cathodes
BPT
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
Cadmium
557.6
246.0
Nickel
3,148.8
2,082.8
Zinc
2,394.4
1,000.4
Cobalt
344.4
147.6
Oil and grease
32,800.0
19,680.0
TSS
67,240.0
31,980.0
pH
(1)
(1)
1 Within the range of 7.5 to
					 10.0 at all times.
Table 6
Miscellaneous Wastewater Streams
BPT
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
Cadmium
6.29
2.77
Nickel
35.54
23.50
Zinc
27.02
11.29
Cobalt
3.89
1.66
Oil and grease
370.20
222.12
TSS
758.91
360.94
pH
(1)
(1)
1 Within the range of 7.5 to
					 10.0 at all times.
Table 7
Cadmium Powder Production
BPT
POLLUTANT OR POLLUTANT PROPERTY
MAXIMUM FOR ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -
mg/kg of cadmium powder produced
English units -
lb/million lbs of cadmium powder produced
Cadmium
22.34
9.86
Nickel
126.14
83.44
Zinc
95.92
40.08
Cobalt
13.80
5.91
Oil and grease
1,314.00
788.40
TSS
2,693.00
1,281.20
pH
(1)
(1)
1 Within the range of 7.5 to
					 10.0 at all times.
Table 8
Silver Powder Production
BPT
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
Cadmium
7.21
3.18
Nickel
40.70
26.92
Silver
8.69
3.61
Zinc
30.95
12.93
Cobalt
4.45
1.91
Oil and grease
424.00
254.40
TSS
869.20
413.40
pH
(1)
(1)
1 Within the range of 7.5 to
					 10.0 at all times.
Table 9
Cadmium Hydroxide Production
BPT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -
mg/kg of cadmium used
English units -
lb/million lbs of cadmium used
Cadmium
0.31
0.14
Nickel
1.73
1.14
Zinc
1.31
0.55
Cobalt
0.19
0.08
Oil and grease
18.00
10.80
TSS
86.90
17.60
pH
(1)
(1)
1 Within the range of 7.5 to
					 10.0 at all times.
Table 10
Nickel Hydroxide Production
BPT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -
mg/kg of nickel used
English units-
lb/million lbs of nickel used
Cadmium
37.4
16.5
Nickel
211.2
139.7
Zinc
160.6
67.1
Cobalt
23.1
9.9
Oil and grease
2,200.0
1,320.0
TSS
4,510.0
2,145.0
pH
(1)
(1)
(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 1 to 10.