(A) No discharges may contain concentrations of hazardous metals any amounts other than as specified in division (B) of this section.
(B) The allowable concentrations of hazardous metals, in terms of mg/l, for discharge to inland waters, and determined on the basis of individual sampling in accordance with standard methods are:
Not to Exceed | |||
Metal | Average | Daily Composite | Grab Sample |
Arsenic | 0.1 | 0.2 | 0.3 |
Barium | 1.0 | 2.0 | 4.0 |
Cadmium | 0.05 | 0.1 | 0.2 |
Chromium | 0.5 | 1.0 | 5.0 |
Copper | 0.5 | 1.0 | 2.0 |
Lead | 0.5 | 1.0 | 1.5 |
Manganese | 1.0 | 2.0 | 3.0 |
Mercury | 0.005 | 0.005 | 0.01 |
Nickel | 1.0 | 2.0 | 3.0 |
Selenium | 0,05 | 0.1 | 0.2 |
Silver | 0.05 | 0.1 | 0.2 |
Zinc | 1.0 | 2.0 | 6.0 |
(Note: These concentration parameters and rules governing same are promulgated under authority of Tex. Water Code, §§ 5.103 and 5.105, and in accordance with 30 Texas Administrative Code §§ 319.21-319.29.)
(C) No other hazardous 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.
(D) Prohibited hazardous materials include but arc not limited to:
(1) Antimony;
(2) Beryllium;
(3) Bismuth;
(4) Cobalt;
(5) Molybdenum;
(6) Uranylion;
(7) Rhenium;
(8) Strontium;
(9) Tellurium;
(10) Herbicides;
(11) Fungicides; and
(12) Pesticides.
(Ord. 2011-01, passed 1-25-11) Penalty, see § 53.99