Irvine, CA Landscaping Rules: Rainwater Harvesting (2026)
Key Facts
- Legality
- Legal: encouraged
- Permit Required
- No (standard rain barrels)
- State Law
- Water Code §10574
- Approved Use
- Landscape irrigation
- Rebates
- Check with IRWD
Summary
Rainwater harvesting is legal and encouraged in Irvine under California Water Code Section 10574 (Rainwater Capture Act of 2012). Rain barrels do not require city permits for standard residential installations.
Water Code - WAT DIVISION 6. CONSERVATION, DEVELOPMENT, AND UTILIZATION OF STATE WATER RESOURCES [10000 - 12999] ( Heading of Division 6 amended by Stats. 1957, Ch. 1932. ) PART 2.4. Rainwater Capture Act of 2012 [10570 - 10574] ( Part 2.4 added by Stats. 2012, Ch. 537, Sec. 2. ) 10574. Use of rainwater collected from rooftops does not require a water right permit pursuant to Section 1201. (Added by Stats. 2012, Ch. 537, Sec. 2. (AB 1750) Effective January 1, 2013.)
Full Breakdown
California Water Code Section 10574 authorizes rainwater harvesting without state permits for rooftop collection systems. Irvine residents may install rain barrels and cisterns for landscape irrigation. No city permit is typically required for standard rain barrels. Larger cistern installations may need plumbing permits. Harvested rainwater is approved for landscape irrigation but not potable use without treatment. The Irvine Ranch Water District may offer rebates or incentives for rainwater capture systems as part of water conservation programs.
Violations & Fines
No penalties for harvesting rainwater. Improperly installed large storage systems creating safety hazards may face building code enforcement.
Frequently Asked Questions
Can I collect rainwater in Irvine?
Are there rebates for rain barrels in Irvine?
Sources & Official References
Other rules in Irvine
California rules heatmap·Compare Irvine to another location·View the California landscaping rules overview
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Rainwater Harvesting in Nearby Cities
How other cities in Orange County handle rainwater harvesting.