What is an Illegal/Illicit Discharge?
Any activity or event which results in a release, leak, flow, escape or the placement of any material other than rain water (including liquids or solids) into the storm drain system. Certain exemptions exist such as uncontaminated landscape irrigation runoff, individual residential car washing, and emergency fire fighting activities. Click the links for simple tips for preventing illegal discharges at your residence and place of business.

If you see someone washing out painting equipment, dumping oil, emptying their swimming pool, or in any way allowing these or other types of hazardous waste to get on the ground or into the gutter or storm drains, please call your city (or unincorporated county) representative as soon as possible. Each call is treated with confidentiality. Please include the location of the dumping activity, the suspected material, and your contact details. If you suspect a flammable and/or immediately hazardous material is being dumped, please call 911.