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§ 471.43 New source performance standards (NSPS).
Any new source subject to this subpart must achieve the following new source performance standards (NSPS):
(a) Rolling Spent Neat Oils—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.
(b) Rolling spent emulsions.
Subpart D—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals rolled with emulsions | ||
| Cadmium | 0.026 | 0.012 |
| Copper | 0.147 | 0.077 |
| Cyanide | 0.023 | 0.010 |
| Silver | 0.032 | 0.013 |
| Oil and grease | 1.54 | 0.925 |
| TSS | 3.16 | 1.51 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(c) Drawing spent neat oils—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.
(d) Drawing spent emulsions.
Subpart D—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals drawn with emulsions | ||
| Cadmium | 0.017 | 0.007 |
| Copper | 0.091 | 0.048 |
| Cyanide | 0.014 | 0.006 |
| Silver | 0.020 | 0.008 |
| Oil and grease | 0.950 | 0.570 |
| TSS | 1.95 | 0.927 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(e) Drawing spent soap solutions.
Subpart D—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals drawn with soap solutions | ||
| Cadmium | 0.001 | 0.0005 |
| Copper | 0.006 | 0.003 |
| Cyanide | 0.0009 | 0.0004 |
| Silver | 0.002 | 0.0006 |
| Oil and grease | 0.063 | 0.038 |
| TSS | 0.128 | 0.061 |
| pH | ( 1) | ( 1) |