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LCRR utility compliance status in Washington

How are Washington water utilities doing on EPA LCRR compliance?

Last verified from EPA SDWIS: 2026-04-14
Water systems
4,725
Known lead
0
Unknown
0
BIL funding
$0M

Lead Service Line Compliance in Washington State

Where Washington's utilities stand

Washington's Department of Health oversees water system compliance with the EPA's Lead and Copper Rule Revision (LCRR). As of October 2024, Washington's 4,725 water systems serve nearly 10 million people across the state.

The LCRR requires all water utilities to inventory their lead service lines (LSLs)—the pipes that connect the water main to homes—by October 2024. This inventory is a first step toward understanding where lead pipes exist and planning replacements.

What the data shows

Washington utilities have been working to meet the federal deadline. The state's drinking water program tracks compliance reports submitted by individual utilities. Most systems in Washington have reported their initial inventories, though the completeness and accuracy of those inventories varies.

Many utilities in Washington classified a portion of their service lines as "unknown"—meaning they don't yet know whether a pipe is lead, copper, galvanized, or plastic. This is common nationwide; many water systems don't have complete records, especially for older neighborhoods. Some utilities are using reasonable estimates based on historical construction records, water main maps, and property age.

What happens next

If your utility found lead service lines, federal law requires a plan to replace them at a rate of at least 15% per year (the "15% rule"). This timeline gives older systems time to secure funding and plan work, though faster replacement is possible and encouraged.

Washington has received federal funding through the Bipartisan Infrastructure Law to support lead pipe replacement projects. Your local utility can tell you whether grants or assistance programs are available in your area.

How to find your utility's status

Contact your local water utility directly to ask:

  • Whether lead service lines have been identified in your neighborhood
  • Whether a replacement program is underway
  • Whether you qualify for replacement assistance or low-interest financing

The Washington Department of Health's drinking water program can also direct you to your utility's compliance reports.

Next steps for residents

  • Contact your water utility to ask about lead service lines in your area and any replacement programs.
  • If your home was built before 1986, request information about your service line material.
  • Visit the EPA's consumer page on lead in drinking water for testing and treatment options.
  • Talk to your pediatrician if you have young children and are concerned about lead exposure.

Related topics in Washington

Common questions

Does Washington have lead service lines?

Yes. Many Washington water systems, especially older ones, have some lead service lines. The extent varies by utility and neighborhood. Your water utility's October 2024 inventory report will show whether lead pipes are known to be in your area.

Is my water unsafe if my house has a lead service line?

Not necessarily. Lead enters water mainly if the line is corroded or disturbed. The CDC recommends testing your water if you're concerned, and using a water filter certified to remove lead while replacements are being planned. Talk to your pediatrician about young children's exposure risk.

Will my utility replace my lead service line?

Many Washington utilities are beginning replacement programs required under federal law. Check with your utility about their timeline, cost-sharing, and whether you qualify for assistance. Some utilities cover the full cost; others split it with homeowners.

How do I know if my service line is lead?

Ask your water utility—they should have records. You can also look where the pipe enters your home; lead is soft, gray, and leaves a mark if scratched with a coin. A plumber can also inspect or test a sample.