State guide
California
California has a mature official lead-service-line disclosure framework under Health and Safety Code section 116885, plus a statewide public dashboard run by the State Water Board.
Checked against official sources on October 4, 2026. Rules and links change; confirm with the office listed before you act.
- State lead service line page
- Official page →
Official resources in California
State lead service line page with background, replacement timelines, and links to utility inventory information.
State page linking to California’s interactive service line inventory summary map and dashboard.
State funding page describing Drinking Water State Revolving Fund support for full lead service line replacement, including privately owned portions.
Utility inventory page with an address lookup and homeowner self-reporting tool.
Utility lead information page with service-line history and lookup resources for former lead-line locations.
Key facts for California
- California’s HSC 116885 page says community water systems had to compile known lead user service line inventories by July 1, 2018. (State Water Board)
- That same page says systems that identified lead or unknown user service lines had to provide a replacement timeline by July 1, 2020. (State Water Board)
- The State Water Board says EPA’s 2021 LCRR required complete inventories covering both system-owned and customer-owned portions by October 16, 2024. (State Water Board)
- California’s funding page says eligible projects include complete removal of lead service lines, including the public and privately owned portions. (State Water Board)
- California’s funding page says disadvantaged-community systems may receive up to 100% principal forgiveness, while non-disadvantaged systems may receive 0% interest loans. (State Water Board)
- A February 4, 2026 State Water Board press release said the latest statewide inventory showed no lead reported in nearly 10 million service connections. (State Water Board)
What to do next
- Use the statewide California inventory dashboard first, then contact your specific water system if the result shows lead, unknown, or a replacement timeline.
- If your water system is replacing a lead line, ask whether it has State Water Board LSLR funding that can cover the privately owned portion too.
- If your address is served by a system on the HSC 116885 list, ask for that utility’s submitted replacement timeline and whether customer-side coordination is available.
Helpful guides
- Who pays to replace the private side of a lead service line?
- Lead service line replacement grants, reimbursements and loans
- How to tell if your water service line is lead
- The Lead and Copper Rule Improvements: what homeowners need to know
Lead line cost-share estimator →