Water Use Rules in Contra Costa County, CA (2026)
1 county-level rule, plus city-specific rules for 2 cities in Contra Costa County, California.
Verified from official government sources
Recycled Water Rules
Large Contra Costa County developments, those over fifteen acres or 120,000 square feet of floor space, must be referred to the local water or wastewater agency to decide whether the project needs a dual water system delivering separate recycled or other nonpotable water, under the county's Dual Water Systems chapter.
Contra Costa Dual Water System Rules
Some RestrictionsContra Costa County Ordinance Code §§ 82-30.410 (Recycled water), 82-30.802 (Applications)
"Recycled water" means water which, as a result of treatment of wastewater, meets all applicable requirements established by the state regional water quality control board having jurisdiction and regulating the use of recycled water and is suitable for appropriate and approved nonpotable uses. ... All development entitlement applications filed with the community development department for proje...
Water Use Rules by City in Contra Costa County
2 cities in Contra Costa County have their own water use rules rules. Each link goes to that city's dedicated page with code citations.
All Contra Costa County ordinances
See every category we cover for Contra Costa County: parking, noise, fences, fires, animals, pools, and more.
Contra Costa County Ordinance Hub →