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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.
| 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.