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.