The “wettest” county east of the Cascades in June was Pend Oreille, which checked in with less than an inch of rain - a ...

Outdoor dust storms can be very unhealthy. Ecology and farmers have been working to reduce dust from fields. During a dust storm, massive amounts of soil and dust are suspended in air that can harm ...

Some of our water quality improvement projects, including total maximum daily loads (TMDLs), are active and have webpages that are listed alphabetically (see left navigation menu). However, to find ...

On July 10, we received national recognition by national U.S. Water Alliance for our innovative Floodplains by Design program ...

The Washington Water Supply Update provides insights into the state's water resources, challenges, and management strategies.

The Recycling Reform Act will improve Washington’s residential recycling system. Passed by the legislature in 2025, the law creates an extended producer responsibility (EPR) program for residential ...

The Washington Legislature has awarded 20 million dollars to clean up the Weyerhaeuser Mill A site on Port Gardner Bay, part of the Port of Everett’s waterfront in Snohomish County. This grant is the ...

Ecology is considering amendments to update Chapter 173-446 WAC, Climate Commitment Act Program Rule. This rulemaking may consider amendments to address new and revised Cap-and-Invest offset protocols ...

One wetland that typically dries completely is a vernal pool. These wetlands hold water early in the growing season and then ...

Cleanup Levels and Risk Calculation (CLARC) is a compendium of technical information related to calculating cleanup levels under Washington's Cleanup Rule, the Model Toxics Control Act (MTCA) ...

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 ...