We're updating requirements for protecting water quality when washing and maintaining bridges and ferry terminals.

Due in part to the May 23, 2013, collapse of the Skagit River Bridge, the Washington State Department of Transportation (WSDOT) and local governments developed a robust schedule to inspect and repair ...

Commercial and industrial businesses that emit large amounts of air pollution must get an air operating permit. An air operating permit is a master document that lists all of the air pollution ...

(Information on this site is considered to be accurate at the time of posting, but is subject to change as new information becomes available.) Washington Dept. of Ecology and U.S. Coast Guard are ...

Lewis’ Moon Snail with its dark brown, hard operculum. Courtesy of Linda Schroeder—PNW Shell Club. With its easily recognizable shell (the largest found on Puget Sound beaches), we are certainly over ...

Coho salmon returning to rivers and streams often die before they can spawn. Photo by Roger Tabor, US Fish and Wildlife For over 20 years, scientists faced a toxic mystery: coho salmon returning to ...

We adopted changes to chapter 173-201A Water Quality Standards for Surface Waters of the State of Washington. In response to nominations we received in 2021, and after considering public comments and ...

Ecology is starting the rulemaking process to amend Chapters 173-18, -20, -22, -26, and -27 under the Shoreline Management Act. Add requirements for local governments to address the impact of sea ...

Bloggers note: This blog is one in a series about lead arsenate and its historic use on orchard lands in Central Washington. Over the next several months we will engage a working group to help us to ...

In a new report from the Washington Department of Ecology, researchers investigated health data for 16 overburdened areas of Washington and found people in these communities face a higher death rate ...

This week, Washington became the first state in the nation to adopt broad restrictions on more than two dozen chemicals used in cosmetic products that can release formaldehyde. Formaldehyde and ...

Firefighting foams like those pictured will be collected at fire departments across the state. Ecology is partnering with fire departments across the state to help protect firefighters from exposure ...