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The ASARCO smelter in Ruston, WA closed in 1986 after nearly 100 years in operation, but arsenic and lead remain in the soil and will continue to be a health risk for years to come. Public Health—Seattle & King County is working in partnership with the WA State Department of Ecology to share information about this issue.

Should you be concerned about arsenic and lead in your soil?

Find out if your yard is contaminated

Screenshot of Everett and Tacoma Smelter Search

Type your address in the interactive search map of affected areas

Depending on where you live, you may be able to get free Home Soil Testing.

Whether or not you live in the eligible area, this booklet explains how you can test your own soil. Contact an accredited environmental laboratory to mail your samples and receive results.

How you can protect yourself and your family

Poster of Healthy Actions to remove dirt from your home.

Healthy Actions are simple things you and your family can do to reduce contact with arsenic and lead in dirt.

Available to download:

Additional resources

What we do

King County Dirt Alert provides outreach and education through community events and presentations. We offer free educational materials and giveaways for children, parents, teachers, and gardeners in multiple languages. Contact us if you have an event or to schedule a presentation.

206-477-DIRT (3478) | dirtalert@kingcounty.gov | Online form

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