Orange County water retailers enforce outdoor irrigation schedules tied to Metropolitan Water District allocations and California state drought emergency regulations, typically limiting irrigation to specific days and hours.
Most OC retail water agencies, including Irvine Ranch Water District, Mesa Water District, Santa Margarita Water District, and Municipal Water District of Orange County member cities, restrict outdoor irrigation to designated days and prohibit watering between mid-morning and early evening when evaporation peaks. Restrictions tighten during state-declared drought emergencies under Governor's Executive Orders. The Orange County Water District manages the groundwater basin recharged by Santa Ana River flows, while imported MWD water supplements south county. Wasteful runoff, broken sprinklers, and hose use without shutoff nozzles are prohibited statewide.
Retailers issue warnings then escalating fines, often $50 to $500. Continued violations can trigger flow restrictors or service shutoff in extreme cases.
See how other cities in Orange County handle lawn watering restrictions.
See how Costa Mesa's lawn watering restrictions rules stack up against other locations.
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