40 C.F.R. § 461.73

Current through September 30, 2024

Section 461.73 - New source performance standards. (NSPS)

(a) The discharge of wastewater pollutants from any new source subject to this subpart shall not exceed the standards set forth below:

(1) Subpart G-Zinc Oxide Formed Anodes-NSPS.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	Metric units-mg/kg of zinc
	English units-pounds per 1,000,000 pounds of zinc
Chromium	4.55	1.97
Mercury	2.82	1.19
Silver	4.55	1.97
Zinc	0.87	0.39
Manganese	6.50	4.98
Oil and grease	216.7	216.7
TSS	325.0	260.0
pH	(1)	(1)

¹ Within the limits of 7.5-10.0 at all times.

(2) Subpart G-Electrodeposited Anodes-NSPS.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	Metric units-mg/kg of zinc deposited
	English units-pounds per 1,000,000 pounds of zinc deposited
Chromium	45.09	19.54
Mercury	27.91	11.81
Silver	45.09	19.54
Zinc	8.59	3.86
Manganese	64.41	49.38
Oil and grease	2,147.00	2,147.00
TSS	3,220.50	2,576.40
pH	(1)	(1)

¹ Within the limits of 7.5-10.0 at all times.

(3) Subpart G-Silver Powder Formed Cathodes-NSPS.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	Metric units-mg/kg of silver applied
	English units-pounds per 1,000,000 pounds of silver applied
Chromium	6.24	2.70
Mercury	3.86	1.63
Silver	6.24	2.70
Zinc	1.19	0.53
Manganese	8.91	6.83
Oil and grease	297.00	297.00
TSS	445.5	356.40
pH	(1)	(1)

¹ Within the limits of 7.5-10.0 at all times.

(4) Subpart G-Silver Oxide Powder Formed Cathodes-NSPS.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	Metric units-mg/kg of silver applied
	English units-pounds per 1,000,000 pounds of silver applied
Chromium	4.17	1.81
Mercury	2.58	1.09
Silver	4.17	1.81
Zinc	0.79	0.36
Manganese	5.96	4.57
Oil and grease	198.5	198.5
TSS	297.8	238.2
pH	(1)	(1)

¹ Within the limits of 7.5-10.0 at all times.

(5) Subpart G-Silver Peroxide Cathodes-NSPS.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	Metric units-mg/kg of silver applied
	English units-pounds per 1,000,000 pounds of silver applied
Chromium	1.00	0.43
Mercury	0.62	0.26
Silver	1.00	0.43
Zinc	0.19	0.09
Manganese	1.43	1.09
Oil and grease	47.6	47.6
TSS	71.4	57.1
pH	(1)	(1)

¹ Within the limits of 7.5-10.0 at all times.

(6) Subpart G-Nickel Impregnated Cathodes-NSPS.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	Metric units-mg/kg of nickel applied
	English units-pounds per 1,000,000 pounds of nickel applied
Chromium	42.0	18.2
Mercury	26.0	11.0
Nickel	42.0	18.2
Silver	42.0	18.2
Zinc	8.0	3.6
Manganese	60.0	46.0
Oil and grease	2,000.0	2,000.0
TSS	3,000.0	2,400.00
pH	(1)	(1)

¹ Within the limits of 7.5-10.0 at all times.

(7) Subpart G-Miscellaneous Wastewater Streams-NSPS.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	Metric units-mg/kg of cells produced
	English units-pounds per 1,000,000 pounds of cells produced
Chromium	0.27	0.12
Cyanide	0.039	0.016
Mercury	0.17	0.07
Nickel	0.27	0.12
Silver	0.27	0.12
Zinc	0.05	0.02
Manganese	0.39	0.30
Oil and grease	12.90	12.90
TSS	19.35	15.48
pH	(1)	(1)

¹ Within the limits of 7.5-10.0 at all times.

(8) Subpart G-Silver Etch-NSPS.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	Metric units-mg/kg of silver processed
	English units-pounds per 1,000,000 pounds of silver processed
Chromium	1.56	0.68
Mercury	0.97	0.41
Silver	1.56	0.68
Zinc	0.30	0.13
Manganese	2.23	1.71
Oil and grease	74.40	74.40
TSS	111.60	89.28
pH	(1)	(1)

¹ Within the limits of 7.5-10.0 at all times.

(9) Subpart G-Silver Peroxide Production-NSPS.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	Metric units-mg/kg of silver peroxide produced
	English units-pounds per 1,000,000 pounds of silver peroxide produced
Chromium	1.66	0.72
Mercury	1.03	0.44
Silver	1.66	0.72
Zinc	0.32	0.14
Manganese	2.37	1.82
Oil and grease	79.10	79.10
TSS	118.65	94.92
pH	(1)	(1)

¹ Within the limits of 7.5-10.0 at all times.

(10) Subpart G-Silver Powder Production-NSPS.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	Metric units-mg/kg of silver powder produced
	English units-pounds per 1,000,000 pounds of silver powder produced
Chromium	0.67	0.29
Mercury	0.42	0.18
Silver	0.67	0.29
Zinc	0.13	0.06
Manganese	0.96	0.74
Oil and grease	32.10	32.10
TSS	48.15	38.52
pH	(1)	(1)

¹ Within the limits of 7.5-10.0 at all times.

(b) There shall be no discharge allowance for process wastewater pollutants from any battery manufacturing operation other than those battery manufacturing operations listed above.

40 C.F.R. § 461.73