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Department of Ecology - State of Washington Logo
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<p>Fall at the Yakima River</p>

We're proud to protect, preserve, & enhance Washington's environment for current and future generations.

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Trending

Evaluating impacts of sustainable aviation fuel

Nitrate contamination: improving drinking water in Yakima County

Tricks, treats, and Flood Awareness Month: learn about your flood risk

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News

The Yakima River running through the dry and dusty Yakima River Canyon

Oct. 1, 2025 – Dwindling water supplies force new restrictions in Yakima Basin

A dark billowing cloud of smoke hovers ominously over an open field

Sept. 30, 2025 – Progress report details climate resiliency in Washington state

Firefighters spraying firefighting foam toward open flames

Sept. 29, 2025 – State launches disposal program for toxic firefighting foams

Use Food Well | What Every WA Business Should Know with Calico Cupboard

Whatcom county farm settles water rights penalty

Oct. 2, 2025

Seattle and King County penalized for sewer overflow violations

Oct. 1, 2025

Grant program funds pathways to healthier air in South King County

Sept. 23, 2025
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Public Input & Events

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Comment period

ends Oct. 13, 2025

High-Level Waste Vitrification — Comment on proposed changes to the permit for handling dangerous waste at the Hanford nuclear cleanup site in southeast Washington.

Nuclear waste
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Public meeting

Oct. 14, 2025, 6 p.m. - Online

Aquatic Plants and Algae — Learn about proposed changes to the Aquatic Plants and Algae Management General Permit for chemical treatment of noxious weeds and nuisance plants.

Water quality
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