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Clovis, CA Landscaping Rules: Rainwater Harvesting (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

State Law
AB 1750 (2012)
Small Barrels
No permit typical
Large Cisterns
Permit required
Landscape Use
Unrestricted
Indoor Use
Permit + filtration

Summary

Rainwater harvesting legal in California and Clovis. AB 1750 (2012) legalized rainfall capture. Rain barrels under 100 gallons generally permit-exempt; larger cisterns may require building/plumbing permits.

LEGISLATIVE COUNSEL'S DIGEST AB 1750, Solorio. Rainwater Capture Act of 2012. (1) Under existing law, the State Water Resources Control Board (state board) and the California regional water quality control boards prescribe waste discharge requirements for the discharge of stormwater in accordance with the national pollutant discharge elimination system (NPDES) permit program and the Porter-Cologne Water Quality Control Act. Under existing law, the state board administers a water rights program pursuant to which the state board grants permits and licenses to appropriate water, upon an application to appropriate water. This bill would enact the Rainwater Capture Act of 2012, which would provide that use of rainwater collected from rooftops d

Source: CA Water Code Section 10574 - Rainwater CaptureView official code

Full Breakdown

California AB 1750 (Rainwater Capture Act of 2012) expressly legalized residential and commercial rainwater harvesting from rooftops without a water right. Small rain barrels (typically under 100 gallons) are permit-exempt statewide. Larger cistern systems, underground tanks, or systems connected to indoor plumbing trigger building and plumbing permit requirements under CA Plumbing Code Chapter 17 (non-potable rainwater). Rainwater may be used for landscape irrigation without permit; indoor use (toilets, laundry) requires permitted system with appropriate filtration.

Violations & Fines

Unpermitted large cistern: stop-work order, retroactive permit or removal. Cross-connection with potable supply: plumbing code violation.

Frequently Asked Questions

Is rainwater harvesting legal in Clovis?
Yes. AB 1750 legalized rooftop rainwater capture statewide in 2012. Small rain barrels under 100 gallons are generally permit-exempt.
Do I need a permit for a large cistern?
Yes. Cisterns over approximately 100 gallons or systems connected to indoor plumbing require building and plumbing permits per CA Plumbing Code Chapter 17.

Sources & Official References

Other rules in Clovis

All Clovis rules

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