(A) Except in quantities or concentrations as herein authorized, it shall be unlawful for any individual or corporation to discharge waters or wastes to the sanitary sewer containing metallic irons, and salts of the heavy metals, in solution or suspension, in concentrations exceeding the following, the analytical results to be expressed in terms of the element indicated:
Element | mg/l |
Element | mg/l |
Arsenic | 0.05 |
Barium | 5.0 |
Boron | 1.0 |
Cadmium | 0.02 |
Chromium | 5.0 |
Copper | 1.0 |
Cyanide | 1.0 |
Lead | 0.10 |
Manganese | 1.0 |
Mercury | 0.0005 |
Nickel | 1.00 |
Selenium | 0.02 |
Silver | 0.10 |
Zinc | 5.0 |
(B) No other heavy metals or toxic materials may be discharged to the sewer system without an industrial waste permit which shall specify permitted concentrations.
(Ord. 235, adopted 9-4-84) Penalty, see § 51.99