Illicit Discharges/Illegal Dumping
Illicit discharges are non-stormwater releases to the storm drain system. Common illicit discharges include:
- Soil from piles stored too close to creeks
- Leaves and "green waste" raked into streets or spread along creeks
- Incidental leaks of petroleum fluids from vehicles and equipment
- Spills, such as paint and chemicals
- Illegally dumped solid waste, appliances and debris
For incidents occurring in incorporated cities and towns, please call 1-800-NO-DUMPING.
To report an active release, or an illegal incident occurring outside of business hours, call the Sheriff's Office at (925) 646-2441 or dial 911.
Click the Help Prevent Illegal Dumping card for tips on how to properly dispose of your waste and who to call to report illegal dumping.
To report oil spills to navigable waterways, please notify:
National Response Center (US Coast Guard) at 800-424-8802; and
CA Emergency Management Agency at 800-852-7550
The CWP currently works with two divisions of the Health Services Department: Environmental Health inspects restaurants and horse boarding facilities for stormwater issues including grease, manure, and trash management; while the Hazardous Materials Program inspects industrial and commercial businesses that have hazardous materials onsite and those that generate hazardous waste.