No person shall discharge wastewater containing in excess of:
Pollutant | Discharge Limit |
Pollutant | Discharge Limit |
(1) Inorganics: | |
Arsenic | 0.92 mg/l |
Cadmium | 0.07 mg/l |
Chromium (total) | 1.71 mg/l |
Copper | 2.07 mg/l |
Cyanide | 0.65 mg/l |
Lead | 0.43 mg/l |
Mercury | No detectable discharge |
Nickel | 2.38 mg/l |
Silver | 0.24 mg/l |
Zinc | 1.48 mg/l |
(2) Organics: | |
Phenols | 0.30 mg/l |
Total toxic organics (TTO) | 2.13 mg/l |
(3) General characteristics: | |
5-day biochemical oxygen demand (BOD5) | Surcharge above 200 mg/l |
Upper limit 1,000 mg/l | |
Ammonia nitrogen (NH3 as N) | Surcharge above 20 mg/l |
Upper limit 100 mg/l | |
Chemical oxygen demand (COD) | Surcharge above 450 mg/l |
Upper limit 2,000 mg/l | |
Chlorides | Surcharge above 800 mg/l |
Upper limit 4,000 mg/l | |
Chlorine demand | 15.0 mg/l |
Fats, oils, and grease | 100 mg/l |
pH | Lower limit 5.5 |
Upper limit 9.5 | |
Phosphorus (as P) | Surcharge above 10 mg/l |
Upper limit 100 mg/l | |
Suspended solids | Surcharge above 250 mg/l |
Upper limit 1,000 mg/l | |
Temperature | 150°F maximum to sewer |
104° maximum at POTW treatment plant influent | |
(Ord. 02-03, passed 7-15-2002)