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.
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.
No penalties for harvesting rainwater. Improperly installed large storage systems creating safety hazards may face building code enforcement.
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Side-by-side rule comparisons with other cities in Orange County.
See how other cities in Orange County handle rainwater harvesting.
See how Irvine's rainwater harvesting rules stack up against other locations.
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