Arsenic and lead in play-area soil can pose a risk to children. Through our Soil Safety Program, we provide free soil sampling and soil safety actions for qualifying public and private schools, ...

Changing climate conditions have increased the threat of flood damage and impacts to aquatic species in the Chehalis Basin watershed. We are working to provide adaptability and resiliency for both ...

We prevent and clean up toxic leaks and spills across the state. We respond to spills, inspect chemical storage and transport facilities, and clean up complex contaminated sites that threaten the ...

We offer a variety of grants and loans across the state. In addition, we accept bids on various projects and enter into contracts. Here, you can get the latest information on these opportunities and ...

Washington has almost 74,000 miles of rivers and streams statewide, more than 4,000 lakes, and almost 3,000 square miles of marine estuaries. We work with engaged citizens, businesses, tribes, and ...

The Legislature directed us to update of the strategy under the Integrated Climate Change Response Strategy (Chapter 70A.05 RCW) in partnership with nine other state agencies. The strategy addresses ...

This tool can help you locate any of these sites within Washington state either in our database, or you can search visually on our interactive mapping tool. For help understanding the codes and terms ...

We improve and protect water quality, manage and conserve water resources, and effectively manage coastal and inland shorelines to assure our state has sufficient supplies of clean water for ...

Our Solid Waste Management program coordinates solid waste and recycling programs in Washington. The state is committed to reducing and recycling waste wherever possible, and safely managing what ...

We work to safely manage solid, hazardous, and nuclear waste and reduce toxic chemicals in the products you use. We regulate the threats found in everyday household products and help businesses ...

Stormwater Capacity Grants are non-competitive and awarded to Phase I and Phase II National Pollutant Discharge Elimination System (NPDES) municipal permittees for activities and equipment necessary ...

Read our blog series about lead and arsenic in former orchards. From the late 1800s to just before 1950, lead-arsenate pesticides were used in apple and pear orchards to control coddling moth ...