SEPA Process

Chehalis River Basin Flood Damage Reduction Project

Ecology will evaluate the Chehalis River Basin Flood Control Zone District’s proposal under SEPA. Ecology has determined that the proposal could have significant adverse environmental impacts and will require formal studies of probable impacts through a SEPA EIS. USACE, representing the federal government, will conduct a separate, but synchronized review required by NEPA. See NEPA Process.

What is SEPA?

SEPA requires agencies to take environmental factors into consideration before taking action on state and local government decisions, such as issuing permits for projects. The EIS will be used to inform permit decisions but no permit decisions can be made until the environmental review process is complete.

What is an Environmental Impact Statement?

An EIS provides a comprehensive and objective evaluation of probable environmental impacts, reasonable alternatives, and mitigation measures that would avoid or minimize impacts. This analysis is necessary before an agency can act on any permit. Areas of the environment proposed for analysis in the SEPA EIS include:

  • Climate Change
  • Cultural Resources (Historic and Archaeological)
  • Environmental Health and Safety
  • Fish and Wildlife
  • Geology and Soils (Landslides)
  • Land Use
  • Public Services and Utilities
  • Recreation
  • Transportation
  • Tribal Resources
  • Water Quality
  • Water Resources
  • Wetlands and Vegetation

Work Underway on Draft EIS

The scoping comments we received are now being used to develop the draft EIS under SEPA. We anticipate providing information regarding the scope of the EIS and alternatives in February 2019. Please sign up to be notified about new information related to the SEPA EIS.

Scoping Period Closed

Scoping is the first step in the environmental review process. We and USACE held a joint SEPA/NEPA EIS scoping period from Sept. 28 through Oct. 29, 2018—including two public scoping meetings. During scoping, the public, tribes, agencies, businesses, and organizations provided input on the scope of the SEPA EIS to help identify project alternatives, probable significant adverse impacts, and potential mitigation measures.

The SEPA EIS Scoping Summary Report provides a summary of scoping comments and outreach. This report will be included in the SEPA draft EIS as well. Visit the EIS Scoping page for more information and to view scoping materials.

Contact Us

Environmental Contact

Diane Butorac, Ecology EIS Project Manager
ph: (360) 407-6573

Media Contact

Curt Hart, Ecology Communications
ph: (360) 407-6944; cell: (360) 701-1220;
Twitter: @ecologyWA

For More Information