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 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 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.