U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
The discharge of wastewater pollutants from any new source subject to this subpart shall not exceed the standards set forth below.
(a) Iron blast furnace.
Subpart C
| Pollutant or pollutant property | New source performance standards | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days | |
| Kg/kkg (pounds per 1,000 lb) of products | ||
| TSS | 0.0117 | 0.00438 |
| O&G | 0.00292 | |
| Ammonia-N | 0.00876 | 0.00292 |
| Cyanide | 0.000584 | 0.000292 |
| Phenols (4AAP) | 0.0000584 | 0.0000292 |
| TRC 1 | 0.000146 | |
| Lead | 0.000263 | 0.0000876 |
| Zinc | 0.000394 | 0.000131 |
| pH | ( 2) | ( 2) |
1 The standards for TRC shall be applicable only when chlorination of ironmaking wastewaters is practiced.
2 Within the range of 6.0 to 9.0.
(b) [Reserved]
