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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New report explores nutrient trading in Puget Sound

Join our virtual Puget Sound Nutrient Forum on July 25 for a presentation on nutrient trading in Puget Sound. 

Investing in cleaner water by the millions (of dollars)
We fund hundreds of water quality projects each year — look back at recent projects to learn more about what is possible with clean water grants and loans.
“Watershed” moment: successes in wetland restoration and regenerative farming in Douglas County
With grant funds from Ecology, the Foster Creek Conservation District is working on a new round of projects to restore the watershed, monitor water quality, and improve soil health near Foster Creek.
Join our June 21 webinar about toxic tire dust
Join our June 21 6PPD webinar. Learn more about 6PPD by watching our video presentations in advance.
Headed out on your boat? Pump out your sewage, don't let it float!
Planning some time on your boat as summer kicks off? Here’s the last of our water-related reminders: don’t empty your boat’s holding tank into Puget Sound or inland waters.
Headed to a lake or river today? Look out for blooming harmful algae!
Once again, it is time to keep an eye out for harmful algae (cyanobacteria) blooms in Washington lakes and rivers. As the weather heats up, these blooms can happen, especially in late summer and fall.
Headed to the beach? Check for poop before you stick in your feet!
Check our safe swimming map for beach advisories and closures. Help us keep poop off the beach.
New plan to address bacteria in Whatcom Creek Watershed
Water quality monitoring shows that fecal bacteria are polluting the Whatcom Creek watershed. We've developed a draft plan to get to clean water.
West Point Treatment Plant water quality permit up for review
We're updating the West Point Treatment Plant water quality permit with new requirements to better protect Puget Sound.
What you need to know about dust storms in Washington
Dust storms can occur in Central and Eastern Washington every spring through fall. Here are some quick tips to help keep you safe.