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Lead service lines in Fresno, CA

118 water utilities serve Fresno, with approximately 662,139 people served.

Last verified from EPA SDWIS + utility inventories: 2026-04-14
Known lead
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Galvanized
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Unknown
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% unknown
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Lead Service Lines in Fresno, CA

What you need to know

Fresno's water systems serve about 662,000 people across the city and surrounding areas. Right now, there is no publicly reported data showing confirmed lead service lines in Fresno's water systems.

That doesn't mean lead service lines don't exist here—it means the data hasn't been collected or made public yet. California water utilities are required to identify and report lead service lines, but the timeline and completeness of these inventories varies by system.

Your water system

The City of Fresno is the largest water provider in the area, serving about 545,700 people. Other notable systems include California State University Fresno (41,000 people), Bakman Water Company (17,393 people), Cherry Auction (7,000 people), and Malaga County Water District (5,979 people).

Each system maintains its own lead service line inventory. Some may have data available now; others may still be working on identification.

Why lead service lines matter

Lead is a toxic metal that can leach into drinking water, especially when water is corrosive or newly installed pipes are used. Children and pregnant people are at highest risk. Even small amounts of lead exposure can affect brain development and learning.

If your home was built before 1980, or if you're unsure about your service line material, it's worth checking.

How to find out about your home

Your service line is the pipe that connects your home to the public water main—usually buried under your yard or street. It may be made of copper, plastic, or lead.

Contact your local water utility directly and ask:

  • Whether your home's service line has been inventoried
  • What material it's made of
  • Whether they have a map or record of the line

The utility may send someone to check, or they may already have this information on file.

Next steps for residents

  • Contact your water utility and ask for information about your service line. (See the system list above for the major providers in Fresno.)
  • Request a water test if you're concerned about lead, even if your service line material is unknown.
  • Use a certified lead test kit or hire a certified lab if you test your water at home.
  • Check the EPA's resources on lead and drinking water for more information and health guidance.

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Utilities serving Fresno

Common questions

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

Contact your water utility and ask them to check their inventory or records for your address. If they don't have the information yet, they may be able to schedule an inspection. You can also look where the water line enters your home and try to scrape a small spot—lead is soft and will show a dull gray or silvery color under the outer corrosion.

Is lead in Fresno water dangerous?

Lead in drinking water is toxic and poses the greatest risk to young children and pregnant people. Even low levels can harm brain development. If you're concerned about your health or your child's, talk to your pediatrician or contact the CDC.

What should I do if I think my service line is made of lead?

First, request a water test from a certified lab to see if lead is actually present in your water. If results are high, use a water filter certified to remove lead, flush your tap before drinking, and contact your utility about replacement options or assistance programs.

Who pays to replace a lead service line?

This varies by utility and state program. California has state funding and some utilities offer cost-sharing or replacement programs. Contact your water utility to ask about programs available in your area.