WS
organizationEnvironmental protection agency for Washington State, United States of AmericaWikipedia

Washington State Department of Ecology

The Washington State Department of Ecology is the state of Washington's environmental regulatory agency. Created on February 23, 1970, it was the first environmental regulation agency in the United States, predating the creation of the Environmental Protection Agency (EPA) by several months.

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30-day activity pulse
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Peak article volume on 2026-04-10.