Discharges from each separate discharge of a user, as measured under the provisions of this chapter, shall not contain in excess of the following concentrations based upon a monthly average. No 24-hour composite sample shall exceed two times the standard, and no grab sample shall exceed five times the standard.
Pollutant | Concentration (mg/l) | Pollutant | Concentration (mg/l) |
Pollutant | Concentration (mg/l) | Pollutant | Concentration (mg/l) |
Arsenic | 0.25 | Lead | 0.1 |
Barium | 2.0 | Manganes e | 1.0 |
Boron | 1.0 | Mercury | 0.003 |
Cadmium | 0.15 | Nickel | 1.0 |
Chromium (hexavalent) | 0.3 | Oil, grease, fats | 100.0 |
Chromium (trivalent) | 1.0 | Selenium | 1.0 |
Copper | 3.0 | Silver | 0.1 |
Cyanide | 0.025 | Zinc | 1.0 |
Flouride | 2.5 | Chlorine Demand | 30.0 |
Iron | 2.0 | Phenols | 0.3 |
(Ord. 18-04-01, passed 4-24-2018)