Wis. Admin. Code Department of Natural Resources NR 255.71

Current through October 28, 2024

Section NR 255.71 - 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 113

Wet Amalgamated Powder Anodes

BPT

POLLUTANT OR POLLUTANT PROPERTY	MAXIMUM FOR ANY 1 DAY	MAXIMUM FOR MONTHLY AVERAGE
Metric units -	mg/kg zinc
English units -	lb/million lbs of zinc
Chromium	1.67	0.68
Mercury	0.95	0.38
Silver	1.56	0.65
Zinc	5.55	2.32
Manganese	2.58	1.10
Oil and grease	76.0	45.6
TSS	155.8	74.1
pH	(¹)	(¹)

¹Within the range of 7.5 to 10.0 at all times.

Table 114

Gelled Amalgam Anodes

BPT

POLLUTANT OR POLLUTANT PROPERTY	MAXIMUM FOR ANY 1 DAY	MAXIMUM FOR MONTHLY AVERAGE
Metric units -	mg/kg of zinc
English units -	lb/million lbs of zinc
Chromium	0.30	0.12
Mercury	0.17	0.07
Silver	0.28	0.12
Zinc	0.99	0.42
Manganese	0.46	0.20
Oil and grease	13.6	8.16
TSS	27.9	13.26
pH	(¹)	(¹)

¹Within the range of 7.5 to 10.0 at all times.

Table 115

Zinc Oxide, Formed Anodes

BPT

POLLUTANT OR POLLUTANT PROPERTY	MAXIMUM FOR ANY 1 DAY	MAXIMUM FOR MONTHLY AVERAGE
Metric units -	mg/kg of zinc
English units -	lb/million lbs of zinc
Chromium	62.9	25.7
Mercury	35.8	14.3
Silver	58.7	24.3
Zinc	208.8	87.2
Manganese	97.2	41.5
Oil and grease	2,860.0	1,716.0
TSS	5,863.0	2,789.0
pH	(¹)	(¹)

¹Within the range of 7.5 to 10.0 at all times.

Table 116

Electrodeposited Anodes

BPT

POLLUTANT OR POLLUTANT PROPERTY	MAXIMUM FOR ANY 1 DAY	MAXIMUM FOR MONTHLY AVERAGE
Metric units -	mg/kg of zinc deposited
English units -	lb/million lbs of zinc deposited
Chromium	1,404.0	574.0
Mercury	798.0	319.0
Silver	1,308.0	543.0
Zinc	4,657.0	1,948.0
Manganese	2,169.0	925.0
Oil and grease	63,800.0	38,280.0
TSS	130,700.0	62,210.0
pH	(¹)	(¹)

¹Within the range of 7.5 to 10.0 at all times.

Table 117

Silver Powder, Formed Cathodes

BPT

POLLUTANT OR POLLUTANT PROPERTY	MAXIMUM FOR ANY 1 DAY	MAXIMUM FOR MONTHLY AVERAGE
Metric units -	mg/kg of silver applied
English units -	lb/million lbs of silver applied
Chromium	86.2	35.3
Mercury	49.0	19.6
Silver	80.4	33.3
Zinc	286.2	119.6
Manganese	133.3	56.8
Oil and grease	3,920.0	2,350.0
TSS	8,036.0	3,822.0
pH	(¹)	(¹)

¹Within the range of 7.5 to 10.0 at all times.

Table 118

Silver Oxide Powder, Formed Cathodes

BPT

POLLUTANT OR POLLUTANT PROPERTY	MAXIMUM FOR ANY 1 DAY	MAXIMUM FOR MONTHLY AVERAGE
Metric units -	mg/kg of silver applied
English units -	lb/million lbs of silver applied
Chromium	57.7	23.6
Mercury	32.8	13.1
Silver	53.7	22.3
Zinc	191.3	79.9
Manganese	89.1	38.0
Oil and grease	2,620.0	1,570.0
TSS	5,370.0	2,554.0
pH	(1)	(1)

¹Within the range of 7.5 to 10.0 at all times.

Table 119

Silver Peroxide Cathodes

BPT

POLLUTANT OR POLLUTANT PROPERTY	MAXIMUM FOR ANY 1 DAY	MAXIMUM FOR MONTHLY AVERAGE
Metric units -	mg/kg of silver applied
English units -	lb/million lbs of silver applied
Chromium	13.8	5.65
Mercury	7.85	3.14
Silver	12.9	5.34
Zinc	45.8	19.2
Manganese	21.4	9.11
Oil and grease	628.0	377.0
TSS	1,287.0	612.0
pH	(¹)	(¹)

¹Within the range of 7.5 to 10.0 at all times.

Table 120

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
Chromium	721.6	295.2
Mercury	410.0	164.0
Nickel	3,149.0	2,083.0
Silver	672.4	279.0
Zinc	2,394.4	1,000.4
Manganese	1,115.2	475.6
Oil and grease	32,800.0	19,680.0
TSS	67,240.0	31,980.0
pH	(¹)	(¹)

¹Within the range of 7.5 to 10.0 at all times.

Table 121

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
Chromium	3.85	1.58
Cyanide	2.54	1.05
Mercury	2.19	0.68
Nickel	16.82	11.12
Silver	3.59	1.49
Zinc	12.79	5.34
Manganese	5.96	2.54
Oil and grease	175.20	105.12
TSS	359.16	170.82
pH	(¹)	(¹)

¹Within the range of 7.5 to 10.0 at all times.

Table 122

Silver Etch

BPT

POLLUTANT OR	MAXIMUM FOR	MAXIMUM FOR
POLLUTANT PROPERTY	ANY 1 DAY	MONTHLY AVERAGE
Metric units -	mg/kg of silver processed
English units -	lb/million lbs of silver processed
Chromium	21.6	8.84
Mercury	12.3	4.91
Silver	20.2	8.35
Zinc	71.7	30.0
Manganese	33.4	14.3
Oil and grease	982.0	589.2
TSS	2,013.1	957.5
pH	(¹)	(¹)

¹Within the range of 7.5 to 10.0 at all times.

Table 123

Silver Peroxide Production

BPT

POLLUTANT OR POLLUTANT PROPERTY	MAXIMUM FOR ANY 1 DAY	MAXIMUM FOR MONTHLY AVERAGE
Metric units -	mg/kg of silver in silver peroxide produced

English units -	lb/million lbs of silver in silver peroxide produced

Chromium	23.0	9.40
Mercury	13.1	5.22
Silver	21.4	8.88
Zinc	76.2	31.80
Manganese	35.5	15.10
Oil and grease	1,044.0	627.00
TSS	2,140.0	1,018.00
pH	(¹)	(¹)

¹Within the range of 7.5 to 10.0 at all times.

Table 124

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
Chromium	9.33	3.82
Mercury	5.30	2.12
Silver	8.69	3.61
Zinc	30.95	12.93
Manganese	14.42	6.15
Oil and grease	424.0	254.40
TSS	869.0	413.40
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 113 to 124.

Wis. Admin. Code Department of Natural Resources NR 255.71

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.