(A) No discharges may contain concentrations of heavy metals greater than amounts specified in division (B) below.
(B) The maximum allowable concentrations of heavy metals, stated in terms of milligrams per liter, determined on the basis of individual sampling in accordance with Standard Methods are:
Metal | mg/l |
Metal | mg/l |
Arsenic | 0.05 |
Barium | 5.0 |
Boron | 1.0 |
Cadmium | 0.02 |
Chromium (total) | 5.0 |
Copper | 1.0 |
Lead | 0.1 |
Manganese | 1.0 |
Mercury | 0.005 |
Nickel | 1.0 |
Selenium | 0.02 |
Silver | 0.1 |
Zinc | 5.0 |
(C) In determining the concentration parameters to be included in this chapter, current state, federal and other appropriate agency rules, regulations and orders should be consulted, including Order 70-0828-5 of the State Water Quality Board regulating the discharge of hazardous metals into or adjacent to state waters.
(D) No other heavy metals or toxic materials may be discharged into public sewers without a permit from the approving authority specifying conditions of pretreatment, concentrations, volumes and other applicable provisions.
(E) Prohibited heavy metals and toxic materials include, but are not limited to:
(1) Antimony;
(2) Beryllium;
(3) Bismuth;
(4) Cobalt;
(5) Molybdenum;
(6) Tin;
(7) Uranyl ion;
(8) Rhenium;
(9) Strontium;
(10) Tellurium;
(11) Herbicides;
(12) Fungicides; and
(13) Pesticides.
(1998 Code, § 122-64) Penalty, see § 51.99