§ 53.22  HAZARDOUS METALS AND TOXIC MATERIALS.
   (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