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Washington Hydropower Environmental Review(9-WA)

In Washington, a hydropower developer must comply with the State’s State Environmental Policy Act (SEPA). SEPA governs Washington’s environmental protection issues within the state. SEPA environmental review is required for any state or local agency decision that meets the definition of an “action” and is not categorically or statutorily exempt. To determine if SEPA review is required, the developer should accurately define the proposal, identifying all related and interdependent pieces of the project, including all permits that the project will require. WAC 197-11-060.

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Determine Which State and Federal Permits Apply

Use this overview flowchart and following steps to learn which federal and state permits apply to your projects.

Narrow your results (by hydropower project type)


Permitting at a Glance

Environmental Review: All state agency actions, including new and continuing activities, projects, and programs "entirely or partly financed, assisted, conducted, regulated, licensed, or approved by agencies; new or revised agency rules, regulations, plans, policies, or procedures, and legislative proposals" must comply with the Washington State Environmental Policy Act. WAC 197-11-704.
Environmental Review Agency: Washington Department of Ecology
Applicable MOU with FERC: No.