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

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 ...

A vernal pool wetland at Turnbull National Wildlife Refuge in late May that is seasonally dry. The lighter, cracked soil has dormant seed shrimp eggs scattered on the surface. Did you know that many ...

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 ...

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) ...

Streams that wind through Western Washington’s forests are essential habitat for frogs, bugs, and lots of other tiny critters. These streams are also a critical source of clean, cool water downstream.

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 ...