San Francisco, CA Water Use Rules: Recycled Water Rules (2026)
Where purple-pipe recycled water is required for irrigation, dual-plumbing requirements for new construction, and cross-connection-control rules.
Research in progress
We are currently verifying San Francisco's specific local ordinance for recycled water rules. In the meantime,California state law generally applies, and below you'll find guidance for finding the official rules and links to related San Francisco ordinances we've already verified.
California State Law Context
California state law provides the baseline framework for recycled water rules across all municipalities in the state. Individual cities like San Francisco may adopt additional local rules on top of state requirements, which is what makes checking your specific city ordinance important. For San Francisco residents, the safest approach is to follow state law as a baseline and contact City Hall for any additional local requirements.
You can browse all California water use rules to see how cities across the state regulate this topic.
How to find official San Francisco Recycled Water Rules rules
- Search for "San Francisco CA municipal code" to find your city's online code portal (Municode, eCode360, or American Legal Publishing are the most common).
- Look for chapters covering water use rules, zoning, nuisance, or property maintenance — that's where most recycled water rules rules live.
- Contact San Francisco City Hall's code enforcement, planning, or community development department for clarification.
- Check with your HOA if applicable — many HOAs have stricter rules than the city itself.