Water quality

Ecology is responsible for keeping Washington waters clean and helping polluted waters recover.
Ecology is responsible for keeping Washington waters clean and helping polluted waters recover.

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182 results.

Cleaning up: An update to the Landsburg Mine site cleanup plan
We're proposing changes to the cleanup plan for the Landsburg Mine site to enable response, if needed, if monitoring detects 1,4 dioxane above action levels.
Cleaning up: Boeing Auburn feasibility study
The Boeing Auburn cleanup site includes a large off-property area. Cleanup strategies studied include speeding up a natural cleanup process. Comment on that study!
Restore Our Earth
Earth Day is just a few days away. Read about what we’ve got in store and learn about ways you can “Restore Our Earth”.
No Discharge Zone continues to protect Puget Sound
We have good news for Puget Sound as EPA reaffirms the No Discharge Zone.
Anderson Lake study suggests toxic blooms are a recent development
Core sampling study shows history of Anderson Lake’s toxic algae
Comment on cruise ship agreement amendments
Seeking comments on proposed amendments to Washington's cruise ship environmental agreement.
Draft permit outlines path to a healthier Puget Sound
We are continuing our work with Puget Sound communities to reduce the amount of nutrients flowing through wastewater treatment plants and into Puget Sound.
$282 million proposed for clean water projects across the state
Ecology is proposing to award $282 million in grants and loans for 108 high-priority clean water projects across the state.
Ecology's brushes with the famous
A brief list of some famous people Ecology has worked with over the past 50 years.
Washington is leading the nation in stormwater management
For Ecology’s 50th anniversary, we are celebrating our municipal stormwater permit program – an example of hard work, partnership, and science coming together to make Washington better.