To report potentially hazardous materials which have been dumped or spilled, contact County Health Services Department - Hazardous Materials Division at (925) 655-3200 or email HazMat. Visit their website for more information.
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If the debris is located on property within a city, contact that city. If the debris is located on private property within the unincorporated area, call the Building Inspection Department at (925) 655-2704 or Building Code Hotline at (925) 655-2737 or visit the Building Inspection webpage for more information.
First identify whether the section of road is within a city or in the unincorporated area of the county. If the debris is located within a city limit, contact that city. If the debris is located within the unincorporated area, email the Public Works Department, Road Maintenance Division or call (925) 313-7000.
If you witness illegal dumping as it occurs, make sure to dial 911 immediately and report all relevant details (date, time, location, vehicle description, detailed description of person dumping, etc.) so that the law enforcement can investigate.
Sites used for illegal dumping vary but may include abandoned industrial, residential, or commercial buildings; vacant lots on public or private property; and infrequently used alleys or roadways. Because of their accessibility and poor lighting, areas along rural roads and railways are particularly vulnerable. Illegal dumping can occur at any time of day but is more common at night or in the early morning hours during warmer months. If not addressed illegal dumps often attract more waste, potentially hazardous wastes such as asbestos, household chemicals and paints, automotive fluids, and commercial or industrial wastes. Offenders can include: construction, demolition, remodeling, roofing, or landscaping contractors, general hauling contractors, operators of junkyards, automobile repair or tire shops, scrap collectors, local residents and "do-it-yourselfers". A resident may dump wastes that did not get picked up by local waste haulers, such as bulky items, carpeting, or household hazardous wastes. Dump sites serve as magnets for additional dumping and other criminal activities. In many cases, illegal dumpers are breaking other laws relating to vehicle licensing, insurance, drug possession or theft. The costs to local government and industry associated with continuous clearing of illegally dumped wastes are significant. In recent years the County has spent up to one million dollars per year on cleanup, hauling, and disposal associated with illegal dumping. Without adequate revenue, the funding available to establish and maintain effective illegal dumping prevention programs is limited. These costs may be passed along to residents in the form of higher service fees or property taxes.
Illegal dumping is a serious problem in the County. Do not approach someone illegally dumping on public land or streets. Record the license plate number and vehicle information. When it is safe, contact local law enforcement and report it providing the license plate number and vehicle information (i.e., year, make, model, color, etc.). If the dumping occurs in the unincorporated county report it to the Contra Costa County Sheriff's Department. If the dumping occurs within incorporated city limits report it to the local Police Department. Dumping on private land should be reported to Code Enforcement at (925) 655-2710 or file a complaint online.
To report Illegal Dumping, please call the Contra Costa Clean Water Program hotline at 1 (800) NO-DUMPING or 1 (800) 663-8674 or visit the Public Works Illegal Dumping webpage.