LeadPipeLookup

State overview

Lead service lines in California

Aggregated lead pipe inventory data for all 8,201 public water systems in California, serving approximately 46,318,192 residents.

Last verified from EPA SDWIS: 2026-04-14
Water systems
8,201
Population served
46,318,192
Known lead lines
0
Unknown material
0

Lead Service Lines in California

What you need to know

California serves nearly 46.3 million people through 8,201 water systems. Lead service lines—the pipes that connect the water main in the street to your home—are a potential source of lead in drinking water, especially in homes built before the 1980s.

The good news: California has not reported any confirmed lead service lines in its statewide inventory data. However, this does not mean lead pipes do not exist in the state. Inventories are still being completed, and many water systems are still identifying which homes have lead or galvanized (lead-prone) service lines.

Why this matters

Lead can leach into water as it sits in pipes, especially if water is acidic or stagnant. Young children and pregnant people are most vulnerable to lead exposure. Even low levels can affect development and learning. If you're concerned about your family's health, talk to your pediatrician or contact the CDC.

What California is doing

Water utilities across the state are working to identify lead service lines and replace them. Federal funding through the Bipartisan Infrastructure Law is helping pay for replacements, though California has not yet received allocated Infrastructure Investment and Jobs Act (IIJA) funding according to available data.

The process takes time: utilities must first locate and document all service lines, then plan and fund replacement programs—especially challenging for smaller, rural systems.

What to do now

Your water utility has a map or list of known lead service lines. Some utilities have already completed inventories; others are still in progress. The inventory status varies widely across California's 8,201 systems.

Next steps for residents

  • Contact your water utility and ask: "Do you have an inventory of lead service lines? Does my address have one?" Most utilities can tell you over the phone or via their website.
  • Get your water tested if you're concerned. Many utilities and health departments offer free or low-cost testing kits.
  • Ask about replacement programs. If your home has a lead service line, ask whether your utility offers free or subsidized replacement.
  • Use a filter in the meantime. NSF-certified filters rated for lead reduction can help, though replacement is the permanent solution.

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Largest public water systems in California

UtilityPWSIDPopulationKnown leadUnknown
Bishop Paiute-Shoshone Tribe090600122———
BlueTriton Brands Morongo090600061———
Big Sandy Rancheria090600121———
Bermuda Palms090600130———
Big River Development090600226———
Big Valley Rancheria Water District090605164———
Big Bend093200167———
Barona North090600118———
Bear River - Tish Non Village090605119———
Bear River/Singley Hill090605125———
Barona090600119———
Big Pine Paiute Band090600120———
Aguirre MHP090600033———
Aha Quin090600193———
Alexander Valley Campground090600168———
Alpine Clinic (SIHC)090605115———
Alturas Desert Rose Casino090600601———
Andrade Border Station090400678———
Angelique Maelee Properties090600043———
Arellano MHP090600023———
Arviso - Mobile Home Park090605121———
Augustine Casino090605142———
Avi Kwa Ame Farms North090400304———
Barajas MHP090600031———
Buena Vue Casino090605117———

Cities in California

More on lead pipes in California

Frequently asked about lead pipes in California

Does California have lead service lines?

California's statewide inventory shows zero confirmed lead service lines to date, but inventories are still being completed by individual utilities. Your city or water company may have more current information about your specific area.

How do I know if my house has a lead service line?

Contact your water utility directly with your address. They should have or be building an inventory of service lines. You can also hire a plumber to inspect the line entering your home, though utilities can usually answer this faster.

Is California replacing lead service lines?

Yes, utilities across the state are replacing lead service lines as they identify them. Funding comes from state and federal sources, but timelines vary. Ask your utility about their replacement program and timeline.

Can I get my water tested for lead?

Yes. Contact your water utility or local health department to request a free or low-cost water test. Testing is the only way to know if lead is present in your water at home.