Due to public health concerns related to the spread of the novel corona virus (COVID-19), the Energy Facility Site Evaluation Council office (EFSEC) is closed to the public as of March 16, 2020. All EFSEC staff are telecommuting until further notice and EFSEC operations will continue remotely. You may reach EFSEC by phone (360) 664-1345 or by email efsec@efsec.wa.gov during regular business hours, 8 am – 5 pm, Monday through Friday. EFSEC Council meetings will be held by teleconference until further notice. Please check this site regularly for updates.

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Goose Prairie MDNS

Revised MDNS


Under the State Environmental Policy Act, or SEPA, the Energy Facility Site Evaluation Council (EFSEC) is required to ensure that environmental values are considered for projects under its jurisdiction.

The public and agencies are invited to comment on this Mitigated Determination of Nonsignificance by submitting written comments no later than July 8, 2021.

Comments can be submitted electronically online by visiting the EFSEC website: https://comments.efsec.wa.gov

Written comments can be submitted by mail to:

The Energy Facility Site Evaluation Council
PO Box 43172
Olympia, WA 98504-3172

For more information please contact Amí Kidder, EFSEC Siting and Compliance Manager at 360.664.1305 or by email at ami.kider@utc.wa.gov


Important Note: Public comments submitted to the Council via the internet or in writing become public records under the Washington State Public Records Act (RCW 42.17). Information included in the comment such as the commenter's e-mail and mailing address becomes a public record once it is provided to EFSEC and may be subject to public inspection and copying if not protected by federal or state law. For additional information please see our Privacy Notice.