Environmental Review

Upcoming Scoping Period on the Chehalis River Basin Flood Damage Reduction Project

The Chehalis River Basin Flood Control Zone District (District) is seeking to construct a new flood retention dam and temporary reservoir near the Town of Pe Ell, Washington, and raise the current levee at the Chehalis-Centralia Airport in Chehalis, Washington, to reduce flood damage during a major flood. The Department of Ecology (Ecology) and the U.S. Army Corps of Engineers (USACE) have determined that the proposal could have significant adverse environmental impacts and will require formal studies of probable impacts through separate state and federal Environmental Impact Statement (EIS) processes.

The first step in the environmental review process is obtaining public input about the scope of the EIS to help identify project alternatives, probable significant adverse impacts, potential mitigation measures, and licenses or other approvals that may be required. Ecology and USACE are anticipating the EIS scoping period will be held from  September 28 through October 29, 2018. For planning purposes, two EIS scoping meetings are planned for mid-October at the following locations and dates:

  • Montesano: Tuesday, October 16, Montesano City Hall, 112 N. Main St, from 5 to 8 p.m.
  • Centralia: Wednesday, October 17, Centralia College, 600 Centralia College Boulevard, from 5 to 8 p.m.

For More Information:

Contact us:


Diane Butorac, Ecology EIS Project Manager
email: diane.butorac@ecy.wa.gov
ph: (360) 407-6573

Janelle Leeson, USACE EIS Project Manager
email: Janelle.D.Leeson@usace.army.mil
ph: (206) 550-1425


Curt Hart, Ecology Communications
ph: 360-407-6944; cell: 360-701-1220; Twitter: @ecologyWA
Patricia Graesser, USACE Communications
ph: 206-764-3760; cell: 206-618-4324, Twitter: @seattledistrict

Check back for site updates!

This site will be updated with scoping meeting announcements and additional information on how to provide scoping comments closer to the start of the scoping period. Sign-up for email updates to be notified when additional information is available.

Please contact us to sign-up for email updates. Additional information about the proposed project, the environmental review process, and how to comment will be available on this page starting September 28, 2018. Scoping comments can only be considered if they are submitted during the comment period so please wait until it opens on September 28, 2018.

Ecology will evaluate the proposal under the State Environmental Policy Act (SEPA). USACE, representing the federal government, will conduct a separate, but synchronized review as required by the National Environmental Policy Act (NEPA). Both EIS documents will provide a comprehensive and objective environmental review. This analysis is necessary before any agency can act on any permit related to the District’s proposal.

Equal Access

To ensure equal access to materials, Ecology and USACE will provide auxiliary aids/services to persons with disabilities. Please call 206-219-5900 with any requests. Persons with hearing loss and speech disability can contact 711 for the Washington Relay Service. Persons with a speech disability may call TTY at 877-833-6341. All meeting-related requests must be received 72 hours in advance.

En Español

El Departmento de Ecología y el Cuerpo de Ingenieros del Ejército de los Estados Unidos están conduciendo los estudios de los impactos ambientales para un proyecto propuesto para una presa de retención de inundaciones cerca de Pe Ell, Washington y mejoras en el dique del Aeropuerto de Chehalis-Centralia en el condado de Lewis para la reducción de daños por inundación. Para más información, favor de contactar a 206-219-5900.