(A) The city manager is authorized to establish local limits pursuant to 40 CFR 403.5(c).
(B) Limits for the pollutants listed below are established to protect against pass through and interference in accordance with 40 CFR Part 403.5(c). No person shall introduce, or cause to be introduced, wastewater containing quantities or concentrations in excess of the limits identified in the following table:
Pollutant | Local Limit |
Pollutant | Local Limit |
Ammonia | 57 mg/L |
Arsenic | 0.13 mg/L |
Biochemical Oxygen Demand | 800 mg/L |
Cadmium | 0.013 mg/L |
Chloride | 9,205 mg/L |
Chromium | 0.44 mg/L |
Copper | 2.02 mg/L |
Hydrogen Sulfide (dissolved) | 0.34 mg/L |
Lead | 0.97 mg/L |
Mercury | 0.05 mg/L |
Molybdenum | 1.50 mg/L |
Nickel | 0.14 mg/L |
Oil and Grease (vegetable) | 250 mg/L |
Oil and Grease (mineral) | 100 mg/L |
Selenium | 0.49 mg/L |
Silver | 0.06 mg/L |
Total Suspended Solids | 1,000 mg/L |
Zinc | 1.06 mg/L |
(C) All concentrations for metallic substances are for "total" metal unless otherwise indicated. At the discretion of the city manager, mass limitations may be imposed on users in addition to or in place of the concentration based limitations on the above listed pollutants.
(D) The city manager may develop BMPs, by ordinance or in individual wastewater discharge permits or general permits, to implement local limits and the requirements of this section.
(`64 Code, Sec. 25-14) (Ord. No. 2494, 2761, 2997)