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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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191 results.

Triple Creek Project: Human-built 'beaver dams' restore streams
Human-built beaver dams can restore streams.
What We Do
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.
What We Do
New website makes it easier to find state and federal funding

The new FundFinder.wa.gov is a clearing house for water quality and salmon project funding.

What We Do
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.

Science
Innovative Regional Septic Loan Program partnership wins EPA and local awards
Our program was incredibly successful in its first year. It prevented 36 million gallons, equal to 55 Olympic-sized swimming pools, of wastewater from flowing into Puget Sound watershed.
What We Do
Latest Sumas-Blaine aquifer nitrate study sets the stage for large study in 2018

Nitrate in groundwater is a concern because of the risk of methemoglobinemia, or “blue-baby syndrome."

What We Do
New study finds widespread PFAS contamination – but also signs of progress

Per- and poly- fluorinated alkyl substances (aka PFAS, PFCs, PFOS) are building up in waterways and fish, but phasing them out could decrease chemical exposure.

Alerts
Eyes Over Puget Sound; Sunny, warm, and colorful

Late summer 2017 brings warm air temperatures and drier conditions throughout Puget Sound. Streamflows in the region's northern rivers are lower than rivers in South Puget Sound.

Science
Puget Sound Nutrient Watch: A new blog series

This Puget Sound Nutrient Watch looks at the importance of excess nutrients and how they affect Puget Sound.

What We Do
Ecology has received a new request to use Imidacloprid to control burrowing shrimp

We are evaluating an application requesting permission to use the pesticide Imidacloprid to control burrowing shrimp in Willapa Bay and Grays Harbor.

What We Do

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