Water quality

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

150 results.

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Puget Sound Nutrient Watch: What we're learning from other states

We invited experts from Long Island Sound, Chesapeake Bay, and the San Francisco Bay to speak to the Puget Sound Nutrient Forum and share their work on reducing nutrients in estuaries

March 19, 2019

Science

$187 milion proposed for clean water projects across the state

Ecology is proposing to award more than $183 million in financial assistance for 107 high-priority clean water projects across the state.

Feb. 18, 2019

What We Do

Understanding the environmental impacts of more water over the dam

We're considering allowing more water to spill over dams to help salmon migrate.

Jan. 29, 2019

Science

$183 million proposed for clean water projects across the state

We are proposing to award more than $183 million in financial assistance for 107 high-priority clean water projects across the state.

Jan. 18, 2019

What We Do

Oak Harbor has Puget Sound's future in mind

The city of Oak Harbor is about to bring Puget Sound's newest wastewater treatment plant online.

Nov. 29, 2018

What We Do

Finding common ground for clean water and healthy farms

Bill Dewey is the new co-chair of our Ag/Water Quality committee.

Oct. 9, 2018

What We Do

Puget Sound officially a No Discharge Zone

Creating a No Discharge Zone (NDZ) helps protect shellfish beds, swimming beaches, and other areas that are especially vulnerable.

Aug. 18, 2018

What We Do

111 Washington wastewater treatment plants win outstanding performance awards

We give awards to wastewater treatment plant operators to celebrate our unsung heroes.

Aug. 16, 2018

What We Do

If fish could talk — what Palouse River fish are telling us

Crews from Ecology and local Conservation Districts spent six weeks collecting fish from the Palouse River in Southeastern Washington.

July 31, 2018

Science

Water quality standards update

We are proposing a change in how we test for bacteria. These tests are a more precise indicator of contaminants that can affect human health and the environment.

July 18, 2018

What We Do

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