Any new source subject to this subpart must achieve the following new source performance standards (NSPS). The mass of pollutants in the metal powder process wastewater shall not exceed the following values:
Subpart J-NSPS
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of powder wet atomized | ||
Copper | 9.58 | 5.04 |
Cyanide | 1.46 | 0.605 |
Lead | 2.12 | 1.01 |
Oil and grease | 101 | 60.5 |
TSS | 207 | 98.3 |
pH | (1) | (1) |
1 Within the range of 7.5 to 10.0 at all times.
Subpart J-NSPS
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of powder sized | ||
Copper | 0.028 | 0.015 |
Cyanide | 0.004 | 0.002 |
Lead | 0.006 | 0.003 |
Oil and grease | 0.292 | 0.175 |
TSS | 0.599 | 0.285 |
pH | (1) | (1) |
1 Within the range of 7.5 to 10.0 at all times.
Subpart J-NSPS
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of powder metallurgy parts steam treated | ||
Copper | 0.151 | 0.079 |
Cyanide | 0.023 | 0.010 |
Lead | 0.033 | 0.016 |
Oil and grease | 1.59 | 0.951 |
TSS | 3.25 | 1.55 |
pH | (1) | (1) |
1 Within the range of 7.5 to 10.0 at all times.
Subpart J-NSPS
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of powder metallurgy parts tumbled, burnished, or cleaned | ||
Copper | 0.836 | 0.440 |
Cyanide | 0.128 | 0.053 |
Lead | 0.185 | 0.088 |
Oil and grease | 8.80 | 5.28 |
TSS | 18.1 | 8.58 |
pH | (1) | (1) |
1 Within the range of 7.5 to 10.0 at all times.
Subpart J-NSPS
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of powder metallurgy parts sawed or ground with emulsions | ||
Copper | 0.035 | 0.018 |
Cyanide | 0.005 | 0.002 |
Lead | 0.008 | 0.004 |
Oil and grease | 0.362 | 0.217 |
TSS | 0.742 | 0.353 |
pH | (1) | (1) |
1 Within the range of 7.5 to 10.0 at all times.
Subpart J-NSPS
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of powder sawed or ground with contact cooling water | ||
Copper | 3.08 | 1.62 |
Cyanide | 0.470 | 0.195 |
Lead | 0.681 | 0.324 |
Oil and grease | 32.4 | 19.5 |
TSS | 66.4 | 31.6 |
pH | (1) | (1) |
1 Within the range of 7.5 to 10.0 at all times.
Subpart J-NSPS
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of powder cooled after pressing | ||
Copper | 1.67 | 0.880 |
Cyanide | 0.255 | 0.106 |
Lead | 0.370 | 0.176 |
Oil and grease | 17.6 | 10.6 |
TSS | 36.1 | 17.2 |
pH | (1) | (1) |
1 Within the range of 7.5 to 10.0 at all times.
Subpart J-NSPS
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of powder mixed | ||
Copper | 15.0 | 7.90 |
Cyanide | 2.29 | 0.948 |
Lead | 3.32 | 1.58 |
Oil and grease | 158 | 94.8 |
TSS | 324 | 154 |
pH | (1) | (1) |
1 Within the range of 7.5 to 10.0 at all times.
40 C.F.R. §471.103