14.16.080 Acceptable wastes—Domestic and industrial sanitary sewage.
The physical, chemical and biological characteristics of domestic sanitary sewage shall be based on daily composite average of the discharge and shall conform to the following limits:
| Domestic Sanitary Sewage | |
|---|---|
| Waste Characteristic | Maximum Concentration |
| Hydrogen ion concentration | 5.0-10.0 |
| Total dissolved solids | 500 milligrams/liter |
| Turbidity | 250 JTU |
| Color | 500 CU |
| Biochemical oxygen demand | 175 milligrams/liter |
| Chemical oxygen demand | 500 milligrams/liter |
| Suspended solids | 200 milligrams/liter |
| Settleable solids | 10 milligrams/liter |
| Sulfide | 0.5 milligrams/liter |
| Grease (vegetable based) | 75 milligrams/liter |
| Toxicity (LC Bioassay) | 25% |
| Detergent (MBAS) | 10 milligrams/liter |
| Ammonia Phosphate (total) | 25 milligrams/liter |
The physical, chemical and biological characteristics of industrial sanitary sewage shall be based on daily composite average of the industrial discharge and not exceed the influent design limits of the city wastewater treatment facility as follows:
| Industrial Sanitary Sewage Maximum Allowable Concentration |
|
|---|---|
| Performance Parameter | |
| BOD | 200 milligrams/liter |
| TSS | 220 milligrams/liter |
| TKN | 35 milligrams/liter |
| Alkalinity | ≤ 120 milligrams/liter as CaCO |