NEPA Process

NEPA process
Chehalis River Basin Flood Damage Reduction Project

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

What is NEPA?

NEPA requires federal agencies to consider environmental values alongside the technical and economic considerations that are inherent factors in federal permit decision making. It is important to emphasize that no permit decisions can be made until after 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 NEPA EIS include:

  • Climate Change
  • Cultural, Historic, and Archaeological Resources
  • Environmental Health and Safety
  • Geology (Landslides and Earthquakes)
  • Geomorphology
  • Land Use
  • Public Services and Utilities
  • Recreation
  • Transportation
  • Tribal Resources (including Tribal Treaty Rights)
  • Water Resources
  • Wetland/Riparian Habitat and Wildlife

Scoping Process

The public scoping period was held from September 28 through October 29, 2018, which is the first step in the EIS process. The purpose of scoping is to receive public input on the scope of the NEPA EIS to help identify project alternatives, probable significant adverse impacts, potential mitigation measures, and licenses or other approvals that may be required. Scoping comments have been summarized in the NEPA Scoping Report. The scoping report summarizes input received on what should be included in the draft EIS.

Visit the EIS Scoping page for more information on the scoping process and to view scoping materials.

Contact Us

Environmental Contact
Bob Thomas
USACE EIS Project Manager
ph: (206) 764-3480

Media Contact
Patricia Graesser
USACE Communications
ph: (206) 764-3760
cell: (206) 618-4324
Twitter: @seattledistrict