U.S. Code of Federal Regulations
Regulations most recently checked for updates: Jun 01, 2023
Any new source subject to this subpart must achieve the following performance standards. The discharge of wastewater pollutants from the core shall not exceed the values set forth below:
| Pollutant or pollutant property | NSPS | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps | ||
| Chromium | 0.173 | 0.070 |
| Cyanide | 0.094 | 0.038 |
| Zinc | 0.476 | 0.196 |
| Aluminum | 2.85 | 1.27 |
| Oil and grease | 4.67 | 4.67 |
| Suspended solids | 7.00 | 5.60 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.0 to 10.0 at all times.
| Pollutant or pollutant property | NSPS | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum rod cast | ||
| Chromium | 0.0008 | 0.0003 |
| Cyanide | 0.0004 | 0.0002 |
| Zinc | 0.0020 | 0.0008 |
| Aluminum | 0.012 | 0.0053 |
| Oil and grease | 0.020 | 0.020 |
| Suspended solids | 0.030 | 0.024 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.0 to 10.0 at all times.
| Pollutant or pollutant property | NSPS | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum rod cast | ||
| Chromium | 0.072 | 0.029 |
| Cyanide | 0.039 | 0.016 |
| Zinc | 0.198 | 0.081 |
| Aluminum | 1.184 | 0.526 |
| Oil and grease | 1.940 | 1.940 |
| Suspended solids | 2.91 | 2.33 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.0 to 10.0 at all times.
| Pollutant or pollutant property | NSPS | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum quenched | ||
| Chromium | 0.754 | 0.31 |
| Cyanide | 0.408 | 0.16 |
| Zinc | 2.08 | 0.86 |
| Aluminum | 12.450 | 5.52 |
| Oil and grease | 20.37 | 20.37 |
| Suspended solids | 20.56 | 24.45 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.0 to 10.0 at all times.
| Pollutant or pollutant property | NSPS | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched | ||
| Chromium | 0.066 | 0.027 |
| Cyanide | 0.036 | 0.015 |
| Zinc | 0.183 | 0.075 |
| Aluminum | 1.094 | 0.49 |
| Oil and grease | 1.79 | 1.79 |
| Suspended solids | 2.69 | 2.15 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.0 to 10.0 at all times.
| Pollutant or pollutant property | NSPS | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched | ||
| Chromium | 0.515 | 0.21 |
| Cyanide | 0.278 | 0.11 |
| Zinc | 1.42 | 0.59 |
| Aluminum | 8.50 | 3.77 |
| Oil and grease | 13.91 | 13.91 |
| Suspended solids | 20.87 | 16.70 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.0 to 10.0 at all times.
| Pollutant or pollutant property | NSPS | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched | ||
| Chromium | 0.72 | 0.290 |
| Cyanide | 0.387 | 0.155 |
| Zinc | 1.97 | 0.812 |
| Aluminum | 1.18 | 5.24 |
| Oil and grease | 19.33 | 19.33 |
| Suspended solids | 29.00 | 23.20 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.0 to 10.0 at all times.
