Are you buying, selling, or working as a real estate professional within the Tacoma smelter plume? Most properties are in areas where arsenic and lead pose only a very small, long-term health risk.

This page provides answers to the most frequently asked questions we receive from local governments about noise pollution and was prepared in conjunction with the Office of Regulatory Assistance. All ...

Two Thurston County property owners were fined $204,000 by the Washington Department of Ecology for unpermitted shoreline development along the Deschutes River near Yelm. Chuck and Austin Rogers ...

The City of Tacoma, in partnership with Western Washington collaborators, will characterize stormwater and stormwater sediment concentrations for several Contaminants of Emerging Concern (CEC). They ...

A new legal designation establishes the boundaries for a future groundwater co-management agreement in the Pasco Basin. Water in eastern Washington is a scarce resource, and tracking groundwater ...

Since we started tracking cleanup site data, we’ve listed over 14,000 contaminated or formerly contaminated sites. While over half of them have been cleaned up, that still leaves more than 6,400 ...

A new competitive grant program from the Washington Department of Ecology will fund projects at 13 landfills across the state to better measure and contain methane before it escapes into the ...

There are sites on our Contaminated Sites List that we know have Per- and polyfluoroalkyl substances (PFAS) contamination. Although PFAS chemicals are not manufactured in Washington, they can still be ...

The Community Litter Cleanup Program (CLCP) provides local governments with funding for litter pickup, illegal dump cleanup, and litter prevention education.

2024 intern Bella Aguirre implements a full flow meter project at host business Valence Surface Technologies. Sustainability isn't just about environmental responsibility — it's also about innovations ...

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, ...

The water year begins Oct. 1 and ends Sept. 30. Three months before the calendar year changes, hydrologists and other water scientists mark the start of the new water year. Starting the water year in ...