Temecula, CA Landscaping Rules: Water Restrictions (2026)

Temecula homes and businesses receive water primarily from Rancho California Water District (RCWD) in the western and central city, with EMWD serving portions of the eastern city and unincorporated French Valley. California's permanent water-waste prohibitions (23 CCR §980.1) apply year-round and prohibit: irrigation runoff onto sidewalks/streets, watering within 48 hours of measurable rain, hosing down driveways and sidewalks (only for health/safety), washing vehicles without a shutoff nozzle, using potable water in non-recirculating fountains, and serving water in restaurants except on request. Under AB 1572 (Water Code §10608.14), use of potable water for irrigating non-functional turf at commercial, industrial, and institutional sites is being phased out, with HOA common areas included by 2027. RCWD's Water Shortage Contingency Plan defines six stages; under Stage 2 or higher, outdoor watering is limited to assigned days (typically 2-3 days/week) and prohibited between 8am-6pm. RCWD enforces with warnings, then fines escalating from $100 to $500+ for repeat violations. RCWD also offers turf-replacement and smart-controller rebates, and new construction must comply with the state's Model Water Efficient Landscape Ordinance (MWELO) for landscapes over 500 sq ft.