Water restrictions in San Marcos, CA β also called the watering schedule, outdoor irrigation rules, or drought ordinance β set which days and hours you can run sprinklers or irrigation.
San Marcos follows Vallecitos Water District and state-mandated water conservation rules. Outdoor watering is limited to specific days and times, with restrictions tightening during declared drought conditions. Runoff from irrigation onto sidewalks, streets, and neighboring properties is prohibited. California's permanent water waste prohibitions apply year-round.
The City of San Marcos is served primarily by the Vallecitos Water District (VWD), which implements water conservation requirements consistent with state mandates. Under California's permanent water waste prohibitions (Water Code Section 10608.48), residents may not water landscapes in a way that causes runoff onto adjacent property, sidewalks, or streets. Watering is prohibited during and within 48 hours of measurable rainfall. Outdoor watering with potable water is generally limited to before 10:00 AM and after 6:00 PM to reduce evaporation losses. During declared drought emergencies, additional restrictions may apply including limits on watering days per week. VWD offers tiered water pricing that increases rates for usage exceeding baseline allocations, providing a financial incentive for conservation. The district also offers rebates for turf removal, smart irrigation controllers, and high-efficiency appliances. San Marcos properties are subject to the state Model Water Efficient Landscape Ordinance (MWELO) for new construction and significant landscape renovations, requiring efficient irrigation design, appropriate plant selection, and maximum allowable water budgets. VWD customer service can be reached at (760) 744-0460.
Water waste violations are handled by VWD and may result in written warnings, followed by surcharges on water bills for repeat offenses. During drought emergencies, fines up to $500 per day may apply for violations. Excessive water use beyond the baseline allocation results in progressively higher tiered rates.
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