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 ...

Known cleanup sites with potential drinking water contamination Ecology knows that there is PFAS contamination in groundwater in these areas. If your water system is in one of these areas, it may be ...

The City of Bellevue, in collaboration with Herrera Environmental Consultants, will evaluate the maintenance thresholds or conditions for the following stormwater Best Management Practices (BMPs): ...

Sustainability isn't just about environmental responsibility — it's also about innovations that cut costs and reduce waste. The Washington Applied Sustainability Internship (WASI) program pairs ...

Public Participation Grants (PPG) provide up to $60,000 per year to individuals and nonprofit organizations to increase public understanding and involvement in cleaning up contaminated sites and ...

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, ...

Drought This year, like many years in recent history, was charactered by low water supply. Six of the last ten years have included some level of drought in Washington. In 2024 low snowpack and ...

Arsenic and lead in soil puts people at risk, especially children. We provide free advice for developers and property owners on how to sample soil for arsenic and lead contamination and to complete ...

The Solid Waste Advisory Committee helps us develop policies to support the successful implementation of Washington's solid waste laws and the State Solid and Hazardous Waste Plan. The committee is ...

The Washington Department of Ecology issued $138,800 in penalties of $1,000 or more from July 1 – Sept. 30, 2023. A detailed list of the violations and resulting penalties is in the table below.

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 ...

Ecology seeks public comment on a draft environmental impact statement outlining five disposal options for municipal firefighting foams with PFAS.