Water restrictions in Brentwood, CA — also called the watering schedule, outdoor irrigation rules, or drought ordinance — set which days and hours you can run sprinklers or irrigation.
Brentwood residents are served by the city's water utility and the East Contra Costa Irrigation District for agricultural users. Permanent statewide water waste rules from the State Water Resources Control Board prohibit runoff, hosing hard surfaces, and watering within 48 hours of rain. Assigned outdoor watering days typically limit irrigation to two or three days per week.
California's State Water Resources Control Board has made several drought-era conservation practices permanent. Statewide, it is illegal to allow irrigation water to run off onto sidewalks, driveways, or streets; to wash paved areas with potable water except for health and safety reasons; to water within 48 hours of measurable rainfall; to irrigate ornamental turf on commercial, industrial, and institutional (CII) properties with potable water (expanded under 2022-2024 emergency rules); and to operate decorative fountains without recirculation. Brentwood's municipal water customers receive an assigned outdoor watering schedule, typically limited to two or three days per week with no watering between 9 AM and 6 PM to minimize evaporation. The city has expanded tiered rate structures to reward conservation, and landscape irrigation audits are available free of charge. New and retrofit landscapes over 500 square feet must comply with the Model Water Efficient Landscape Ordinance (MWELO, Title 23 CCR), including a landscape documentation package, water budget calculations, drip irrigation on non-turf areas, and smart controllers. Violations of city water rules trigger warning, then escalating fines starting around $100 and increasing to $500 for repeat offenses. During declared drought emergencies, restrictions may tighten further and mandatory rationing may apply.
Contact your local code enforcement office for specific penalty information.
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Side-by-side rule comparisons with other cities in Contra Costa County.
See how other cities in Contra Costa County handle water restrictions.
See how Brentwood's water restrictions rules stack up against other locations.
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