Waste or Chemical | Concentration mg/l |
Waste or Chemical | Concentration mg/l |
Boron | 1.0 |
Chromium (hexavalent) | 5.0 |
Chromium (trivalent) | 10.0 |
Copper | 3.0 |
Cyanide | 0.005 |
Iron | 15.0 |
Lead | 0.1 |
Mercury or its compounds | 0.005 |
Nickel | 3.0 |
Oil and grease and the like (carbon tetrachloride extraction) | 100.0 |
Temperature not over 150°F (65°C) | |
Acid iron picking waste or concentrated plating waste | zero |
Free acid and alkalis pH | Between 5.5 and 9.5 |
Zinc | 2.0 |
Cadmium | 2.0 |
Chlorine demand | 30.0 |
Phenols | 0.5 |
(2009 Code, Ch. 39 Appendices)