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We're cleaning up the Holcim Inc site, near the Centennial trail and a boat launch. 

Recently, an independent advocacy group shared with us a study identifying several chemicals in groundwater that caught our attention.

We convened the Legacy Pesticides Working Group to help us identify potential approaches to address lead and arsenic contamination of former orchard lands. Learn what the group will be working on.

Because a state capital budget was not approved, we must cut back on the services we offer to the residents of the Tacoma Smelter Plume area.

Since 2006, we’ve worked with the City of Bothell on contamination cleanup in their downtown. We’ve reached several milestones, including proposing removal of environmental covenants at three sites.

This month we launched our new Dirt Alert Map. This online map focuses on the Tacoma Smelter Plume and  covers other areas in the state where arsenic- and lead-related soil contamination may exist.

The Tacoma Smelter Plume project has three new Dirt Alert videos showing simple actions you can take to stay healthy, plus some great gardening and landscaping tips for around the home.

While most of us may not appreciate the slime that grows on river rocks, Dr. William Hobbs and his colleagues have found slime useful for investigating the sources of toxic chemicals in the water.

September marks the fast approaching arrival of fall, and a halfway point for this season’s Yard Program work in the Tacoma Smelter Plume. 

On Monday, Ecology will start digging up contaminated soil at six yards on Vashon-Maury Island.