Central Region

Ecology has four regional offices. The Central region includes Benton, Chelan, Douglas, Kittitas, Klickitat, Okanogan, and Yakima counties.
Ecology has four regional offices. The Central region includes Benton, Chelan, Douglas, Kittitas, Klickitat, Okanogan, and Yakima counties.

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Every day is Earth Day

For Ecology, Earth Day is more than just one day a year — it’s our mission every day.

Expedited rulemaking to amend state floodplain rules

Ecology using state expedited rulemaking process to amend state floodplain management rules

New innovative program prevents Columbia River drought shutoffs

Almost 400 water right holders are at risk of having their water shut off in the next Columbia River drought. If you’re one of them, help us prevent that and get you the water you need.

Yakima Basin water supply update

The Yakima Basin has had back-to-back droughts in 2023 and 2024. Heading into irrigation season, we are getting a better idea of 2025 conditions and their impacts on the basin.

Celebrating a legacy: Office of Columbia River Director Tom Tebb embarks on retirement

Tom Tebb is retiring from Ecology after 33 years of service. Let's look back on his remarkable career and lifelong commitment to Washington state and the environment.

Grants up to $120,000 educate neighbors about local environmental projects

In January, Ecology will begin accepting applications for grants for projects that increase public understanding and involvement in cleaning up contaminated sites.

Building homes on former orchard lands

Old orchards in Central Washington left lead and arsenic in soil. Builders must check land history, test soil, cleanup property, inform buyers, report cleanup, and ensure worker safety.

Help shape future onshore wind and solar energy projects

Ecology seeking public comments to help shape the future for solar and onshore wind energy facilities in Washington.

Expanding air monitoring for the 2024 wildfire season

Ecology is expanding air monitoring across the state in response to wildfire smoke. 

Salmon restoration project helps strengthen sockeye population in the Yakima Basin

The Yakima Basin Integrated Plan celebrated completion of its largest undertaking, the Cle Elum juvenile fish passage facility, which will improve access to 30 miles of river habitat.