40 C.F.R. § 421.246
Current through September 30, 2024
Except as provided in 40 CFR 403.7 , any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in secondary nickel process wastewater introduced into a POTW shall not exceed the following values:
PSNS for the Secondary Nickel Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
| mg/kg (pounds per million pounds) of slag input to reclaim process | ||
| Chromium (total) | 5.653 | 2.313 |
| Copper | 24.410 | 12.850 |
| Nickel | 24.670 | 16.320 |
PSNS for the Secondary Nickel Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
| mg/kg (pounds per million pounds) of acid reclaim nickel produced | ||
| Chromium (total) | 2.198 | 0.899 |
| Copper | 9.491 | 4.995 |
| Nickel | 9.590 | 6.344 |
PSNS for the Secondary Nickel Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
| mg/kg (pounds per million pounds) of acid reclaim nickel produced | ||
| Chromium (total) | 0.528 | 0.216 |
| Copper | 2.278 | 1.199 |
| Nickel | 2.302 | 1.523 |
40 C.F.R. §421.246