40 C.F.R. § 421.232
Current through September 30, 2024
Except as provided in 40 CFR 125.30 through 125.32 , any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
BPT Limitations for the Primary Nickel and Cobalt Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
| mg/kg (pounds per million pounds) of copper, nickel, and cobalt in the crushed raw material | ||
| Copper | 0.146 | 0.077 |
| Nickel | 0.148 | 0.098 |
| Ammonia (as N) | 10.260 | 4.512 |
| Cobalt | 0.016 | 0.007 |
| Total suspended solids | 3.157 | 1.502 |
| pH | (1) | (1) |
1 Within the range of 7.5 to 10.0 at all times.
BPT Limitations for the Primary Nickel and Cobalt Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
| mg/kg (pounds per million pounds) of nickel powder washed | ||
| Copper | 0.064 | 0.034 |
| Nickel | 0.065 | 0.043 |
| Ammonia (as N) | 4.515 | 1.985 |
| Cobalt | 0.007 | 0.003 |
| Total suspended solids | 1.389 | 0.660 |
| pH | (1) | (1) |
1 Within the range of 7.5 to 10.0 at all times.
BPT Limitations for the Primary Nickel and Cobalt Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
| mg/kg (pounds per million pounds) of nickel produced | ||
| Copper | 24.120 | 12.700 |
| Nickel | 24.370 | 16.120 |
| Ammonia (as N) | 1,692.000 | 743.900 |
| Cobalt | 2.666 | 1.143 |
| Total suspended solids | 520.500 | 247.600 |
| pH | (1) | (1) |
1 Within the range of 7.5 to 10.0 at all times.
BPT Limitations for the Primary Nickel and Cobalt Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
| mg/kg (pounds per million pounds) of cobalt produced | ||
| Copper | 40.660 | 21.400 |
| Nickel | 41.080 | 27.180 |
| Ammonia (as N) | 2,852.000 | 1,254.000 |
| Cobalt | 4.494 | 1.926 |
| Total suspended solids | 877.300 | 417.300 |
| pH | (1) | (1) |
1 Within the range of 7.5 to 10.0 at all times.
40 C.F.R. §421.232