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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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.
Newest round of clean-water funding focuses on small communities
Our latest round of funding for clean water projects will provide more than $300 million to communities.
See a bloom, give it room
Use caution this spring, summer, and fall as seasonal algae blooms in your local lake could be toxic to you and your pets.
Boots on the ground: Environmental service in partnership with Washington Tribes
Join us on a tour of some projects our Washington Conservation Corps has completed in partnership with Washington Tribes through the years.
What's bugging Puget Sound benthos?
Ecology’s Marine Sediment Monitoring Team tracks the health of the sediments and invertebrates at the bottom of Puget Sound. They've been on the decline for decades – what could be contributing?
Safer streets and cleaner water in Walla Walla
The City of Walla Walla's award winning transportation project is good for the community and for salmon.
Ecology denies petition to begin rulemaking to establish nutrient wasteload allocations for a Puget Sound TMDL
Ecology received a rule petition from Northwest Environmental Advocates for us to engage in rulemaking to place wasteload allocations in a rule for an official water cleanup plan.
Beaver reintroduction a watershed success
In the fall of 2014, with the help of staff and volunteers. Kent released three beaver pairs in three separate streams in Black Canyon.
Tackling Toxics: PCB problem requires creative solutions
We stopped using polychlorinated biphenyls (PCBs) 35 years ago, yet it continues to contaminate almost every water body in Washington.
Innovative agreement highlights practices that are good for farms and the environment
More than 40 farms representing 110,000 acres in Eastern Washington are in line to become among the first Farmed Smart certified agriculture operations in the Northwest.