Fillmore, CA Landscaping Rules: Rainwater Harvesting (2026)
Key Facts
- Legal Status
- Fully legal in California
- Permit
- Not required for standard rain barrels
- State Law
- Water Code §10574 / AB 1750
- Large Systems
- Permit may be needed > 5,000 gal
- Use
- Irrigation only (non-potable)
Summary
California law fully supports residential rainwater harvesting. Fillmore residents can collect rainwater from rooftops without a permit for landscape irrigation. Rain barrels and cisterns are encouraged as part of water conservation efforts in the Santa Clara River watershed.
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 §10574 and the Rainwater Capture Act (AB 1750) explicitly allow residential rainwater harvesting throughout the state. Fillmore residents can install rain barrels and cisterns to collect rooftop runoff without permits for standard residential systems. Water collected can be used for landscape irrigation, which supports Fillmore's water conservation goals in the drought-prone Santa Clara River Valley. Larger cistern systems (over 5,000 gallons) may require a building permit for structural support. Rainwater cannot be used for indoor potable use without treatment meeting state health standards. Ventura County and local water agencies may offer rebates for rain barrel installations. Standing water must be managed to prevent mosquito breeding per Ventura County Vector Control requirements.
Violations & Fines
There are no penalties for collecting rainwater in Fillmore. However, large storage systems may need building permits for structural safety. Standing water that breeds mosquitoes can trigger vector control enforcement.
Frequently Asked Questions
Can I collect rainwater in Fillmore?
Do I need a permit for a rain barrel in Fillmore?
Can I use collected rainwater for drinking in Fillmore?
Sources & Official References
Other rules in Fillmore
California rules heatmap·Compare Fillmore to another location·View the California landscaping rules overview
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Rainwater Harvesting in Nearby Cities
How other cities in Ventura County handle rainwater harvesting.