Contra Costa County, CA Trash & Recycling: Illegal Dumping (2026)

(a) It is unlawful to dump or cause to be dumped waste matter in or upon a public or private highway or road, including any portion of the right-of-way thereof, or in or upon private property into or upon which the public is admitted by easement or license, or upon private property without the consent of the owner, or in or upon a public park or other public property other than property designated or set aside for that purpose by the governing board or body having charge of that property. (b) It is unlawful to place, deposit, or dump, or cause to be placed, deposited, or dumped, rocks, concrete, asphalt, or dirt in or upon a private highway or road, including any portion of the right-of-way of the private highway or road, or private property, without the consent of the owner or a contractor under contract with the owner for the materials, or in or upon a public park or other public property, without the consent of the state or local agency having jurisdiction over the highway, road, or property. (c) A person violating this section is guilty of an infraction. Each day that waste placed, deposited, or dumped in violation of subdivision (a) or (b) remains is a separate violation.