Two years into using the new SIte Hazard Assessment and Ranking Process, we've assessed over 1,400 sites. Watch our progress and compare sites with an interactive dashboard.

To request ADA accommodation, contact Ecology's ADA Coordinator by email at ecyadacoordinator@ecy.wa.gov, or call 360-407-6831, 711 (relay service), or 877-833-6341 (TTY). More about our accessibility ...

The first batch of highly radioactive capsules has been successfully moved from underwater pools to safer, long-term dry storage at the Hanford Site. This initial transfer marks a major milestone in ...

Today, the Washington Department of Ecology proposed changes to the rules that govern forestry offset projects under the state’s Cap-and-Invest Program. The changes would make it easier for small ...

This Earth Day, we are hosting a coloring book design contest for kids across Washington. Students will learn about how to help prevent pollution and design coloring book pages with this in mind. This ...

Low snowpack in many Washington river basins means drought remains on the table for 2026 As we enter 2026, let’s take a moment to check in on what a wild month of December weather has meant for ...

The 2021 plastics law will reduce the use of covered single-use plastics. This law aims to reduce the production of new plastic and drive the development of new markets for Washington’s recyclable ...

This enforcement action follows the conclusion of Ecology’s investigation of the 2023 Conway spill. For questions about the ongoing response for a leak on the Olympic Pipeline that began Nov. 11, 2025 ...

We invite you to review and comment on the Chehalis River Basin SEPA revised draft environmental impact statement. We have opened a 75-day public comment period and will accept comments through Feb. 4 ...

At Spanaway Lake, toxic algal blooms mean the lake closes for recreation to keep people safe. Ecology is starting a rulemaking to address toxins produced during harmful algal blooms in freshwater.

Tugboats. Street sweepers. Freight switchers. Ambulances. Box trucks. All of these vehicles typically run on diesel engines that produce harmful exhaust. But there is cleaner technology available, and ...

In the Yakima Basin, a third consecutive year of drought has caused historically low reservoir storage and streamflows. To address those conditions, the Washington Department of Ecology is issuing an ...