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Dams

There are thousands of dams in Washington and Ecology regulates many of them in some way. Dams have different owners, including federal, state, and local government, tribes, and private owners and serve many purposes across the state.
There are thousands of dams in Washington and Ecology regulates many of them in some way. Dams have different owners, including federal, state, and local government, tribes, and private owners and serve many purposes across the state.

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Sept. 28 webinar focuses on Skookumchuck Dam assessment
The Skookumchuck Dam is over 50 years old, and the power plant it was built to serve is shutting down. Join us for a discussion on the possible futures for the dam.
What You Can Do
Dam scary words for un-scary dam conditions
Terms like "high hazard" and "poor condition" might sound a little scary when talking about dams. Here's what the terms really mean.
What We Do
Columbia Gorge smelter cleanup, redevelopment considered
Cleanup plans taking shape at former Columbia Gorge Aluminum smelter near Goldendale.
What We Do
March 9 public forum focuses on Skookumchuck Dam study
We are holding a public forum March 9 to share information about our Skookumchuck Dam study to evaluate if the structure could help reduce flood damage and improve aquatic habitat.
What You Can Do
Ecology focuses on salmon recovery, protecting state waters, and climate resilience in 2022 legislative session
Washington’s environment is worth protecting, preserving, and restoring. We’re hopeful for the potential to advance our environmental protection in the 2022 legislative session.
What We Do
EPA plan for Washington and Oregon rivers leaves salmon in hot water
We're submitting our comments on EPA temperature TMDL for the Columbia and Snake rivers.
What We Do
Comment period extended for environmental review of Chehalis flood reduction project
The public is invited to participate in an online public hearing April 2 & online public meeting April 21 to comment on draft environmental review for proposed Chehalis River flood reduction project.
Alerts
Helping communities reduce risks before floods, find solutions in the aftermath
In February, 2020, flooding brought the biggest disaster in decades to Southeast Washington. Learn how we're helping communities recover and improve their resiliency to future floods.
What We Do
Water supply update: Yakima Basin

In April, water managers announced a 100 percent water supply for Yakima irrigators this season. They optimistically predicted all water users were set.

What We Do
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