94-16. Prohibited Wastes; Exceptions.
No user shall contribute or cause to be contributed, directly or indirectly, any pollutant or wastewater which will interfere with the operation or performance of the County sewerage system. This prohibition applies to all such users of the County sewerage system.
- Any wastewater having a temperature which will inhibit biological activity in a wastewater treatment plant or result in other interference with the treatment processes, but in no case wastewater with a temperature which exceeds 60° C. (140° F.) at its introduction into the wastewater treatment plant.
- Any water or waste containing more than 50 mg/l of fat, oil or grease or other substances that will solidify or become viscous at temperatures between 0° C. (32° F.) and 60° C. (140° F.).
- Wastewater containing floatable oil, fat or grease from industrial plants.
- Any garbage that has not been properly shredded so that no particles are any greater than 1/2 inch in any dimension.
- Any waste capable of causing abnormal corrosion, abnormal deterioration, damage to or hazard to structures or equipment of the County sewerage system, or to humans or animals or interference with proper operation of wastewater treatment facilities. All wastes discharged to the County sewerage system must have a pH value in the range of 6 to 10 pH units. Prohibited materials include, but are not limited to, concentrated acids and alkalis and high concentrations of compounds of sulfur, chlorine and fluorine and substances which may react with water to form strongly acidic or basic products.
- Any waters or wastes having a color which is not removable by the existing wastewater treatment processes and which causes the plant effluent to exceed NPDES color requirements for discharge to the receiving waters.
