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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Nutrient pollution modeling shows different futures for Puget Sound
This week, we shared our latest Salish Sea modeling results, which are moving us another step forward on regional efforts to reduce nutrients.
Triple Creek Project: Human-built 'beaver dams' restore streams
Human-built beaver dams can restore streams.
Water quality declining in Whatcom County – but work is underway
Water contaminated with fecal coliform can make people sick. It's a serious public health issue. It also threatens an important shellfish industry
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."

Latest health report on Washington beaches
See the good, the best, and the poopiest marine swimming beaches in our BEACH Program Annual Report.
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

Puget Sound Nutrient Watch: Algal Blooms

Excess nutrients can cause an explosion of algae growth called algal blooms, we discuss more about these blooms. 

If they build it, will the salmon come?
A restored Chelan River is prompting Ecology to evaluate what the river can support.
Our 5 most popular science reports
Our scientists publish about 100 scientific documents every year. The five most popular range from studies using the Salish Sea Model to instructions for gaining lab accreditation.
Ready for summer!
Halfway through this year of pandemic and upheaval, summer brings much to do — and appreciate.