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Contamination cleanup

Contamination cleanup helps restore habitat for wildlife, provides new opportunities for recreation, and protects people’s health by removing toxic chemicals from the environment.
Contamination cleanup helps restore habitat for wildlife, provides new opportunities for recreation, and protects people’s health by removing toxic chemicals from the environment.

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196 results

Samples indicate recent contamination is no longer spreading to groundwater at Pasco Landfill

Recent soil vapor samples indicate groundwater contamination isn't affecting air quality in buildings by the Pasco Landfill. 

What We Do
Cleanup crews working quickly to address recent groundwater contamination from Pasco Landfill

Through Jan. 20, we invite your input on a legal order to address groundwater contamination from the Pasco Landfill that happened when chemicals being removed from soil weren’t fully captured.

What We Do
Las brigadas de limpieza trabajan rápidamente para abordar la reciente contaminación de agua subterránea de Pasco Landfill

Hasta el 20 de enero, invitamos a sus comentarios sobre una orden legal para abordar la contaminación del agua subterránea del Vertedero de Pasco.

What We Do
Kaiser Aluminum combatting legacy contamination with UV light

In June, Kaiser Aluminum started up a full-scale pump-and-treat system that treats 200 gallons of groundwater per minute and destroys up to 99% of polychlorinated biphenyls (PCBs) in water.

What We Do
Rod Hankinson: Washington’s environmental hero and youth mentor for over 30 years

Learn more about Rod Hankinson's praiseworthy career managing our Youth Corps Litter Crew.

What We Do
Cleaning up: Fieldwork starting in the Duwamish Waterway Park

Fieldwork to answer questions about the type and extent of contamination at Seattle's Duwamish Waterway Park slated for November

What We Do
Cleaning up: Join the conversation on the Boeing Isaacson Thompson cleanup site

The Boeing Isaacson Thompson site is undergoing significant remediation as part of the broader Lower Duwamish Waterway cleanup initiative. 

What We Do
Two Seattle sites to be cleaned up for affordable housing

We invite you to comment on cleanup site documents and attend two open houses for the Morningside Acres and L Auto Repair cleanup sites in Seattle, which will be developed into affordable housing, 

What You Can Do
Building homes on former orchard lands

Old orchards in Central Washington left lead and arsenic in soil. Builders must check land history, test soil, cleanup property, inform buyers, report cleanup, and ensure worker safety.

What We Do
Cleaning up remaining contamination at the Unocal Edmonds site

Comment on the study outlining cleanup options for the remaining contamination at the Unocal Edmonds cleanup site

What We Do

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