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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Update about making Puget Sound a No Discharge Zone for vessel sewage

We've asked the EPA to make the Puget Sound off limits to discharging sewage from vessels.  

Ocean Acidification is real

Let’s be clear. Ocean acidification is real. Determining the causes, impacts, and identifying potential solutions are high priorities for our agency and the state.

Stories about Getting to Clean Water: Stormwater Sleuths Solve the Mystery of the Putrid Pipe - Pullman’s hunt for the elusive, illicit discharge
The illicit stormwater discharge often lurks out of sight under a city's buildings and streets. The challenge for cities is to locate and eliminate this pollution source.
Stories about Getting to Clean Water: A Pullman Partnership: Not Wishy-Washy about Preventing Stormwater Pollution
Pullman sought a solution that would allow car washes to continue without dirty water entering nearby streams.
Affordable Clean Water Loans are a lifeline when your septic system fails
There are about a million privately-owned and operated septic systems across Washington and many are at risk of failing due to old age.
Clean water projects get a boost from the other Washington
Ecology is proposing to award $365 million in grants and loans for 117 high-priority clean water projects across the state.
Clean water projects get a boost from the other Washington
We're awarding $317 million in grants and loans for 124 high-priority clean water projects across the state.
50th anniversary of the Clean Water Act
A short video celebrating the 50th anniversary of the Clean Water Act.
Ecology considers putting outstanding waters in a class of their own
For the first time, Ecology is starting a rulemaking to consider putting four water bodies into a special category of protection, by designating them as "Outstanding Resource Waters."
“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.