KING COUNTY WATER DISTRICT #125 Lead Service Line Inventory

What this page tells you

King County Water District #125 serves about 21,904 residents in Washington state. This page summarizes what the utility has reported about lead service lines—the pipes that connect the public water main to homes.

Lead service lines are a genuine concern: if present, they can leach lead into drinking water, especially in homes with acidic water or after water sits in pipes overnight. The EPA and CDC recommend testing if you're uncertain whether your home has one.

Current inventory status

The utility has not yet completed a public lead service line inventory. As of our last update, no inventory data has been published or made available through LeadPipeLookup.

This doesn't mean the utility has no lead lines—it means the mapping work either hasn't started, is underway, or results haven't been shared publicly yet. Federal law (the Lead and Copper Rule Revisions) requires all water systems to inventory lead service lines by October 2024, so updates may be coming.

What you can do right now

Contact the utility directly. They can tell you whether your address has a known lead service line, is suspected to have one, or is confirmed lead-free. They may also offer free testing kits.

Test your water. Many local health departments offer free or low-cost lead testing. A simple lab test of your tap water takes a few minutes and costs $20–50 if you pay out of pocket—but many counties cover the cost.

Check your home. If your home was built before 1986, there's a higher chance of a lead service line. You can often spot one by looking where the water pipe enters your home in the basement or crawlspace: lead lines are soft, dull gray, and can be scratched with a coin.

Funding and timeline

We don't have current information on whether this utility has received federal funding (via the Bipartisan Infrastructure Law) for lead line replacement. Contact them to ask about grants, zero-interest loans, or cost-sharing programs that might offset replacement costs for your home.

Next steps for residents

• Call or email the utility to ask about your home's service line status and any free testing programs.
• Request their lead service line inventory once it's published—ask for a timeline if it's not yet available.
• Get your water tested through your county health department or a certified lab.
• Visit the EPA's Lead and Copper Rule page for treatment and replacement options if a lead line is confirmed.

```json [ { "q": "How do I know if my house has a lead service line?", "a": "Contact King County Water District #125 directly with your address—they should be able to tell you. You can also look at the pipe where water enters your home: lead is soft, dull gray, and scratches easily with a coin. A water test can also detect lead, though it tests the water itself, not the pipe." }, { "q": "Is lead in water dangerous for kids?", "a": "Yes. The CDC recommends pregnant people and young children avoid water from lead pipes because lead can affect brain development and learning. Contact your pediatrician or call the CDC hotline (1-800-232-4636) for guidance if you're concerned." }, { "q": "Can I get my lead service line replaced for free?", "a": "It depends. Some utilities and local programs offer grants or cost-sharing. Contact King County Water District #125 to ask what programs they have. The utility may also offer rebates or connect you with state/federal funding." }, { "q": "What should I do while waiting for an inventory?", "a": "Get your water tested, check your home's pipes if you can access them, and ask the utility about their timeline for the inventory. If you have young children or are pregnant, consider using bottled or filtered water until