Orange County, CA Landscaping Rules: Water Restrictions (2026)
Water restrictions in Orange County, CA, also called the watering schedule, outdoor irrigation rules, or drought ordinance, set which days and hours you can run sprinklers or irrigation.
Key Facts
- Countywide watering schedule
- None set by county; varies by water district
- Wholesale coordinator
- Municipal Water District of Orange County (MWDOC)
- Prohibited statewide
- Runoff, hosing pavement, non-recirculating fountains
- Permanent state law
- SB 606 / AB 1668 (2018) efficiency standards
- Water-waste fine
- Up to $500/day (infraction, during drought)
Summary
Unincorporated Orange County does not set a single countywide watering schedule; outdoor water rules are set by each retail water district (coordinated through MWDOC) plus statewide law. California permanently prohibits wasteful practices like runoff, hosing pavement, and using non-recirculating fountains under State Water Board rules.
New development and retrofitted landscape water efficiency standards are governed by the Model Water Efficient Landscape Ordinance (MWELO) . The MWELO is also referenced by Title 24, Part 11, Chapters 4 and 5 CalGreen Building Code. All local agencies must adopt, implement, and enforce the MWELO or a local Water Efficient Landscape Ordinance (WELO) that is at least as effective as the MWELO. Usually, local agencies that adopt WELOs create a more stringent ordinance than MWELO.
The purpose of water efficient landscape ordinances is to not only increase water efficiency but to improve environmental conditions in the built environment. Landscaping should be valued beyond the aesthetic because
Full Breakdown
Water service in unincorporated Orange County is delivered by local retail water agencies, wholesaled through the Municipal Water District of Orange County (MWDOC). There is no single Orange County government ordinance setting universal watering days or hours; specific watering-day schedules and drought stages are set by each customer's retail water district. What does apply countywide are California's statewide water-waste prohibitions enforced by the State Water Resources Control Board (SWRCB). These ban applying potable water in a way that causes runoff onto adjacent property or pavement, washing a vehicle with a hose lacking a shut-off nozzle, hosing down sidewalks and driveways, and operating decorative fountains that do not recirculate water.
California has also made conservation a permanent way of life through Senate Bill 606 and Assembly Bill 1668 (2018), which set permanent urban water-use efficiency standards and phase out irrigation of non-functional/decorative turf at many commercial, industrial, and institutional properties regardless of drought. For specific watering days, hours, and any drought-stage limits, unincorporated residents must check with their retail water provider. New and rehabilitated landscapes also fall under the County's Water Efficient Landscape (WELO/MWELO) program.
Violations & Fines
Violations of the statewide water-waste prohibitions are infractions, with fines of up to $500 per day for each day a violation continues during drought conditions. In practice, providers typically issue warnings (door hangers, follow-up letters) before fines or service action. District-specific watering-day violations are enforced by the retail water agency.
Frequently Asked Questions
How many days a week can I water in unincorporated Orange County?
What outdoor water uses are banned everywhere in California?
Sources & Official References
Other rules in Orange County
How Orange County compares: Cities with the Strictest Water Restrictions·California rules heatmap·Compare Orange County to another location·View the California landscaping rules overview
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