Water restrictions in Marin County, CA — also called the watering schedule, outdoor irrigation rules, or drought ordinance — set which days and hours you can run sprinklers or irrigation.
Marin Municipal Water District (Marin Water) rules prohibit landscape irrigation between 9 AM and 7 PM, limit overhead sprinkler watering to twice per week, and allow drip irrigation up to three times per week. Watering is prohibited during and within 48 hours after rainfall.
Marin Water (MMWD) regulates outdoor water use across most of unincorporated Marin County under its Water Service Conditions and Water Conservation Measures rules. Landscape irrigation is prohibited between 9 AM and 7 PM. Overhead sprinkler irrigation is limited to two days per week, while drip irrigation systems may operate up to three days per week. Watering during or within 48 hours after measurable rainfall is prohibited. Marin Water also prohibits use of potable water to irrigate new ornamental lawns in commercial and municipal landscapes. Permanent waste prohibitions from 2014–2015 remain in effect.
Marin Water enforces conservation rules with a written warning first, escalating to fines and, for repeated noncompliance, flow restrictors or service shut-off. Water-waste complaints go to Marin Water Customer Service. State law adds penalties under California Water Code.
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See how Marin County's water restrictions rules stack up against other locations.
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