Contra Costa County, CA

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How do I report illegal dumping as it occurs?

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.

How do I report hazardous material spills or dumping?

To report potentially hazardous materials which have been dumped or spilled, contact County Health Services Department - Hazardous Materials Division at (925) 335-3200.

How do I report debris on public roads?

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, contact the County Public Works Department-Road Maintenance Division at (925) 313-7000.

How do I report debris in creeks?

Call the Contra Costa Clean Water Program hotline at 1(800)No-Dumping.

How do I report debris on private property or a vacant lot?

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, contact the County Building Inspection Department-Code Enforcement at (925) 674-7210 or Toll Free at (877) 646-8314 or contact the County Health Services Department-Environmental Health Division at (925) 692-2500.

How do I report the lack of garbage services?

Garbage service is mandatory for all occupied residences located within the unincorporated areas (county code chapter 418-6), unless an exemption has been granted by the Health Officer. To make a report please call the County Health Services Department-Environmental Health Division at (925) 692-2500. To file a complaint online click on this link

Environmental Health Complaint Form

How do I report unresolved garbage / recycling collection company complaints?

If you are unable to resolve a service complaint with your garbage / recycling collection company, you can contact the County Community Development Department at (925) 674-7203 and you will be referred to the appropriate governmental agency in your area.

Recycling Collection Services

What is the county currently doing about illegal dumping?

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.

Who do I call to report a pothole?

During normal work hours, call our Maintenance Division at (925) 313-7000. If it is something that could be an emergency after hours, call the Sheriff's dispatch at (925) 646-2441.

Who do I contact to determine if I need a permit for work on my house, street, or creek?

Contact the Application and Permit Center at (925) 674-7200.

Who do I contact if I have flooding on my street?

During normal work hours, call our Maintenance Division at (925) 313-7000. If it is something that could be an emergency after hours, call the Sheriff's dispatch at (925) 646-2441.

How do I find out the street sweeping schedule for my neighborhood?

To find out the schedule for your nieghborhood, to report problems with your schedule or missed service, please call the County Watershed Program's (CWP) Street Sweeping Manager at (925)313-2236.

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Who do I call to report graffiti on public or private property?

Graffiti is a serious problem that creates visual blight and diminishes property values. Graffiti is a crime and should be reported to the Contra Costa County Sheriffs Department. Occasionally, the markings are gang related and promote violence in the area. The quick removal of the graffiti is one of the most effective deterrents of additional “tagging.” Additionally you may contact the following departments; for publicly owned property such as street signs, sidewalks and freeway underpasses marked with graffiti should be reported to the Public Works department at (925) 313-7000. Privately owned property such as the sides of buildings and fences should be reported to Code Enforcement (925) 674-7210 or Toll Free at (877) 646-8314.

If I see someone dumping garbage on private or public property, what should I do?

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) 674-7210 or Toll Free at (877) 646-8314. To file a complaint online go to

Code Enforcement Complaint form