In general, these wastes must be those associated with sanitary sewer facilities. A list of prohibited wastes and materials includes but is not limited to:
Any waste with physical or chemical properties which could potentially damage pipes, valves, manholes, and appurtenances of the City’s sewer system
Any waste with physical or chemical properties which could adversely affect the treatment processes at the wastewater treatment plant
Also, non-waste waters such as rainfall, stormwater runoff, and irrigation water are illegal to introduce into the City’s sanitary sewer system. These are harmful because the flows are not considered contaminated wastes and provide extra hydraulic flows into the sanitary sewer system and ultimately to the wastewater treatment plant, which can adversely affect the operation of the wastewater collection system and the wastewater treatment plant.