What is an illicit discharge and who do I call to report it?
An illicit discharge is any non-stormwater discharge or discharge to the storm drain system that is not composed entirely of rain or precipitation run-off. Call 911 or the Sheriff’s Dispatch (925)646-2441 to report an illegal discharge going on right now. Call (925)313-2236 to report an illicit discharge that has taken place in unincorporated County or call 1-800-NO-DUMPING to report an illicit discharge that occurred in other cities/towns in Contra Costa County.