New source performance standards. (NSPS).

  1. Law
  2. CFR 40
  3. Protection of Environment
  4. Environmental Protection Agency
  5. Effluent Guidelines and Standards
  6. Battery Manufacturing Point Source Category
  7. Zinc Subcategory
  8. New source performance standards. (NSPS).

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§ 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.

Expand Table
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.

Expand Table
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.

Expand Table
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.

Expand Table
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.

Expand Table
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.

Expand Table
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.

Expand Table
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.

Expand Table
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.

Expand Table
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.

Expand Table
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.


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