Wis. Admin. Code Department of Natural Resources NR 255.31

Current through October 28, 2024

Section NR 255.31 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

(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.

Wis. Admin. Code Department of Natural Resources NR 255.31

Cr. Register, November, 1987, No. 383, eff. 12-1-87; correction in (1) made under s. 13.92(4) (b) 7, Stats., Register April 2013 No. 688.