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Stockton, CA Landscaping Rules: Rainwater Harvesting (2026)

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

Key Facts

State authority
Cal. Water Code §10574 (AB 1750, 2012)
Permit required for rain barrels
No: for rooftop, non-potable use
Building permit
Required only for plumbed/elevated/large systems
Mosquito control
Tanks must be sealed/screened

Summary

Stockton has no ordinance restricting rooftop rainwater capture. California's Rainwater Capture Act of 2012 (AB 1750, Water Code §10574) lets residential, commercial, and governmental landowners install rain barrels and rainwater capture systems without a state water-right permit when collecting rooftop runoff for non-potable on-site use.

This bill would enact the Rainwater Capture Act of 2012, which would provide that use of rainwater collected from rooftops does not require a water right permit from the state board. (2) Existing law, the Contractors’ State License Law, creates the Contractors’ State License Board within the Department of Consumer Affairs and provides for the licensing and regulation of contractors. Existing law authorizes a landscape contractor working within the classification of his or her license to enter into a prime contract for the construction of a swimming pool, spa, or hot tub, an outdoor cooking center, or an outdoor fireplace, if certain conditions are met. Under existing law, a violation of these provisions and related provisions of existing la

Source: Stockton Water ConservationView official code

Full Breakdown

Cal. Water Code §10574 et seq. (Rainwater Capture Act of 2012, AB 1750) provides that the diversion and use of rainwater captured from rooftops does not require a water-right permit from the State Water Resources Control Board. Systems must comply with California Plumbing Code Chapter 17 (alternate water sources), the California Building Standards Code, and any local building permit requirements; tanks must be sealed against contamination and mosquito intrusion. Stockton has no chapter restricting rain barrels; non-potable rooftop capture for landscape irrigation is allowed and actively encouraged through Chapter 13.28 water-conservation goals and Chapter 16.56 landscaping standards that promote 'on-site stormwater capture.' San Joaquin County Mosquito and Vector Control District guidance: tanks/barrels must have screened, sealed inlets to prevent mosquito breeding. Connecting a rainwater system to indoor plumbing or potable supply triggers California Plumbing Code permit requirements.

Violations & Fines

No fines for installing or using a rain barrel. Building/plumbing permit violations (e.g., unpermitted potable cross-connection) would be enforced under SMC Title 15 building code penalties. Mosquito-breeding stagnant water can be cited by the San Joaquin County Mosquito and Vector Control District.

Frequently Asked Questions

Can I put rain barrels on my Stockton home?
Yes. AB 1750 (Cal. Water Code §10574) allows residential rooftop rainwater capture without a state water-right permit, and Stockton has no local ban. Use the collected water for landscape irrigation, not drinking.
Do I need a permit?
No permit for a typical above-ground rain barrel collecting rooftop runoff for outdoor irrigation. Larger cisterns, elevated tanks, or systems plumbed into the house require a building/plumbing permit under SMC Title 15.

Sources & Official References

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