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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Working with wineries to protect Washington’s waters
More wineries in Washington means there is also more winery wastewater. If wastewater is not managed, it can cause problems for the environment and local sewer treatment plants.
Ecology considers General Permit to control nutrients in Puget Sound

Excess levels of nutrients from human sources are harming Puget Sound. 

Recent rain welcome bonus for water supply

We’ve seen some wet weather across the state in the weeks since drought was declared in a few Central Washington watersheds on April 4.

When soap and water are not a good thing

Soap isn’t the answer when there’s an oil spill.

Puget Sound Nutrient Watch: The Salish Sea Computer Model

We explain how the Salish Sea Model and other scientific computer models help us better understand the world around us.

By managing stormwater, cities and counties are helping to protect Washington’s waters
Reducing stormwater pollution helps prevent toxins from entering the water and harming orca and salmon.
$215 million proposed for clean water projects across the state
Ecology is proposing to award $215 million in grants and loans for 89 high-priority clean water projects across the state.
$16.6 million awarded for clean water projects in the central region
We're offering financial assistance for 20 high-priority projects.
Ecology's brushes with the famous
A brief list of some famous people Ecology has worked with over the past 50 years.
Puget Sound Nutrient Watch: What is the Problem with Nutrients?

Our third installment of Puget Sound Nutrient Watch focuses on Puget Sound's excessive nutrients.