The Yakima Basin has had back-to-back droughts in 2023 and 2024. Heading into irrigation season, we are getting a better idea ...

Join us virtually on March 17, 2025, to learn more about our agency’s efforts in developing a strategy to achieve healthy ...

Ecology monitors multiple cleanup sites at Joint Base Lewis-McChord (JBLM). This page focuses on Per- and polyfluoroalkyl substances (PFAS) contamination in the groundwater. JBLM is in Pierce County, ...

Our aquatic plant specialist explains the differences between invasive and native milfoils, why native milfoils are important ...

These forms are the first step in a legal process called adjudication. This process will determine who has a right to use ...

NextCycle Washington advances recycling and reuse projects for a circular economy. The third cohort of teams just started our ...

We are seeking feedback on our draft list of priority actions for the next three years to update the water quality standards. We are accepting comments from 12 a.m. on Feb. 25, 2025, until 11:59 p.m.

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 ...

CLARC February 2025 updates are now online. We made updates to incorporate newly published IRIS toxicity values for arsenic and PFHxS and associated noncancer effects information. We also updated ...

During the holidays, millions of pounds of food is wasted in Washington. That’s a lot of resources going in the trash! By making smart choices, you can reduce food waste, save money, and relax a ...

Annual reports are due March 15, 2025. See below for more program information. Correction to email address in Chapter 173-443 WAC The email address for contacting Ecology’s Hydrofluorocarbons Team ...