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

What is Scoping?

Scoping is the first step in the EIS process. The purpose of scoping is to receive public input on the scope of the SEPA EIS to help identify project alternatives, probable significant adverse impacts, potential mitigation measures, and licenses or other approvals that may be required. Learn more about providing scoping comments.

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