40 C.F.R. § 421.245
Current through November 30, 2024
Except as provided in 40 CFR 403.7 and 403.13 , any existing 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 existing sources. The mass of wastewater pollutants in secondary nickel process wastewater introduced into a POTW must not exceed the following values:
PSES 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 |
PSES 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 |
PSES 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. §421.245