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Comment period

Beginning the cleanup process at TransAlta Centralia

Comment on an agreed order and public participation plan

Dec. 30, 2025, 8 a.m. - Feb. 2, 2026, 11:59 p.m. PT

Ecology is requiring cleanup at TransAlta Centralia, which generated electricity from coal.

Two documents are available for public review:

  1. Agreed Order No. DE 24235 is a legal agreement between Ecology and TransAlta Centralia Generation LLC. It requires TransAlta to clean up the site under Ecology oversight. Ecology signed the Agreed Order on December 29th, 2025.

  2. The Public Participation Plan describes how Ecology will contact the public about this site, and opportunities for public input.

TransAlta Centralia is a power plant about 5 miles away from Centralia. The plant generated electricity from coal, which may have caused contamination in air, soil, groundwater, and sediment at the facility. TransAlta is legally required to clean up the site, regardless of the plant’s future. 

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Comment online

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Comment by mail

Thomas Middleton, Toxics Cleanup Program
PO Box 47775
Olympia, WA 98504-7775
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Questions

Tom Middleton
Cleanup Site Manager
thomas.middleton@ecy.wa.gov
360-999-9594

To request ADA accommodation, contact Ecology's ADA Coordinator by email at ecyadacoordinator@ecy.wa.gov, or call 360-407-6831, 711 (relay service), or 877-833-6341 (TTY). More about our accessibility services.