Hanford Events Calendar

The U.S. Department of Energy (DOE) is holding a 30-day public comment period on an Engineering Evaluation / Cost Analysis (EE/CA) that considers three alternatives for non-time-critical removal actions for nine structures in the Fast Flux Test Facility (FFTF) complex in Hanford’s 400 Area.

The comment period will run from May 22 through June 21, 2023. 

The FFTF is a former nuclear research and test reactor built in the 1970’s. It was shut down in 1993. Deactivation work was completed in 2009 and the FFTF was placed in a long-term surveillance-and-maintenance condition.

An EE/CA is required for a non-time-critical removal action and is a comprehensive study prepared consistent with federal environmental laws and regulations that evaluate cleanup options to address environmental conditions. Cleanup of the nine FFTF complex structures identified in the EE/CA will reduce the risk of a release of hazardous substances and lower overall Hanford surveillance and maintenance costs.

Copies of the EE/CA and supporting documentation will be available during the public comment period in the Administrative Record and at the Public Information Repositories.


Please submit comments by June 21 to (preferred) or in writing to:

U.S. Department of Energy
Attn: Jennifer Colborn
P.O. Box 450, H5-20
Richland, WA 99352

After considering public comments, DOE will confer with the U.S. Environmental Protection Agency to select an alternative. The selected alternative will be documented in a Comprehensive Environmental Response, Compensation, and Liability Act action memorandum.

View the summary fact sheet for more information.  
Questions? Please contact Jennifer Colborn, DOE, at or (509) 376-5840.