Discharge of anything other than clean rainwater into storm drains is illegal because it presents a serious threat to fish, wildlife, drinking water and marine life. The City investigates and enforces legal prohibitions against illegal dumping to the storm drainage system.

Illegal Dumping as it Occurs

If you witness illegal dumping as it is occurs, make sure to dial 9-1-1 immediately and report all relevant details (date/time, location, description of vehicle and driver, etc.) so that law enforcement can investigate.

Potentially Hazardous Material Spill or Dumping

To report potentially hazardous materials that have been dumped or spilled, contact the County Health Services Department - Hazardous Materials Division at 925-655-3200 (during business hours) or 925-655-3232 (24-hour hotline for emergencies only).

Debris in Creeks

To report debris that has been dumped into a creek call the Contra Costa Clean Water Program hotline at 1-800-No-Dumping. Contra Costa County, nineteen of its incorporated cities and the Contra Costa Flood Control & Water Conservation District joined together to form the Contra Costa Clean Water program (CCCWP). The CCCWP strives to eliminate stormwater pollution through public education, inspection and enforcement activities and industrial outreach.

Sanitary Sewer Discharges

To report sanitary sewer back-ups, spills or leaks call Stege Sanitary Service 24 hours at 510-524-4668

Potable Water Leaks

East Bay Municipal Utilities District (EBMUD) 866-403-2683