LeadPipeLookup

State overview

Lead service lines in Washington

Aggregated lead pipe inventory data for all 4,725 public water systems in Washington, serving approximately 9,973,093 residents.

Last verified from EPA SDWIS: 2026-04-14
Water systems
4,725
Population served
9,973,093
Known lead lines
0
Unknown material
0

Lead Service Lines in Washington

What we know about lead pipes in Washington

Washington has 4,725 water systems serving roughly 10 million people. As of now, the state has not reported any confirmed lead service lines in its inventory data—though this doesn't mean lead pipes don't exist. Many smaller water systems, particularly in rural areas, have incomplete records of what material their pipes are made from.

Lead service lines are the pipes that connect a water main under the street to your home. If your house was built before 1986, there's a higher chance your service line contains lead, since lead pipes were common and cheap until federal rules limited their use. Even "low-lead" brass fittings installed after 1986 can leach small amounts of lead into drinking water.

Why inventory matters

The EPA now requires all water systems to map out their lead service lines by 2024 and develop plans to replace them. Washington utilities are in the process of gathering this data. Some systems may discover lead or galvanized pipes (which can corrode and release lead) as they dig deeper into old records or inspect pipes directly.

If your water system hasn't completed an inventory yet, it's worth asking them directly what they've found—or haven't found—in your neighborhood.

What you can do right now

You don't have to wait for a complete inventory to take action. If you suspect your home has a lead service line, you can:

  • Get your water tested through your local health department (usually free or very cheap).
  • Ask your water utility for records specific to your address. They should be able to tell you whether your line is lead, copper, or galvanized.
  • Use a filter if testing shows lead. NSF-certified filters rated for lead reduction work at the tap.

For health questions about lead exposure, contact your pediatrician or the CDC.

Next steps for residents

  • Contact your water utility and ask for your service line material on file
  • Request a free water test through your local health department
  • If you have young children or are pregnant, talk to your doctor about testing recommendations
  • Check back with LeadPipeCheck for updates as Washington utilities complete their inventories

Largest public water systems in Washington

UtilityPWSIDPopulationKnown leadUnknown
FORD-NEWHOUSE LANE105338100———
FORT OKANOGAN INTERPRETIVE CENTER105338101———
DELIA JIMICUM WATER DISTRICT105300135———
CHIEF KITSAP ACADEMY105388890———
ELWHA HEIGHTS105311107———
END OF TRAIL II105300113———
DEKKER WATER SYSTEM105301739———
CUYAMACA105300089———
CHEHALIS TRIBAL HOUSING105300027———
B & D MOBILE COURT105300073———
CAMP DESAUTEL105338124———
DUNGENESS RIVER NATURE CENTER105300130———
CAMPBELL FARM1053AB363———
COOKS IN-LIEU TFAS105338113———
CORNERSTONE RANCHES FARMWORKER HOUSING105388892———
COLVILLE FUELS NOISY WATERS105338115———
101 BUILDING QUILEUTE105300126———
BLUEBERRIES1053AC974———
5 CEDARS105300028———
BEACH105300109———
ANGEL OF THE WINDS RV RESORT105388897———
ANGEL OF THE WINDS105311105———
BLYN - 7 CEDARS CONSOLIDATED105300083———
ADAMS VIEW105300042———
FORT ROAD HOUSING1053AD754———

Cities in Washington

More on lead pipes in Washington

Frequently asked about lead pipes in Washington

Does Washington have lead pipes in the water system?

Washington's official inventory shows no confirmed lead service lines reported so far, but many water systems are still completing their surveys. Lead pipes may exist but haven't been documented yet, especially in older homes and rural areas.

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

Contact your water utility with your address—they should have records of your service line material. You can also hire a plumber to inspect it, or get your water tested for lead through your health department.

Is lead in Washington tap water dangerous?

Lead is most risky for young children and pregnant people. Even small amounts can affect brain development. If you're concerned about lead exposure, talk to your pediatrician or doctor and get your water tested.

What should I do if my water tests positive for lead?

Use an NSF-certified lead-reduction filter at your tap, flush your lines before drinking, and contact your water utility to report the result. Ask your utility about replacing your service line and check if you qualify for state or federal funding to help cover costs.