Hybrid Public Meeting on a Proposed Plan for Amending the Record of Decision for the 300 Area
The Department of Energy (DOE) and the Environmental Protection Agency (EPA) are holding a hybrid meeting on a Comprehensive Environmental Response, Compensation, and Liability Act proposed plan presenting a revised remedial action to address contaminated soil known as the 300-296 waste site underneath Hanford’s 324 Building.
DOE has now completed a focused feasibility study on the methods to remediate the waste site and has presented two alternatives to EPA. Both alternatives will successfully remediate the waste to achieve cleanup levels. As part of the process to Amend the 2013 Record of Decision, DOE and EPA are now opening a public comment period to collect input on the two alternatives.
The 324 Building remains in a safe and stable configuration. Contaminated soils beneath the structure have remained stable for decades and existing monitoring indicates no migration of contamination into the groundwater. Crews will continue to monitor groundwater to ensure worker and public safety and health.
A 30- 70-Day comment period is running from June 9 to July 9, Aug. 18, 2025. A hybrid meeting will be held on June 30, at 5:30 p.m., PT, at the Richland Public Library, 955 Northgate Drive, Richland, WA 99352. To participate via Microsoft Teams, please follow the instructions below:
Join on your computer or mobile app
Join the meeting now
bit.ly/4kQGgfQ
Or call in (audio only)
(509) 931-1284
(833) 633-0875 (Toll-free)
Phone Conference ID: 156 530 249#
Please submit all comments by July 9, Aug. 18, 2025 to 324_ProposedPlan@rl.gov (preferred) or mail to:
U.S. Department Energy
Attn: Dana Cowley
P.O. Box 450, MSIN H5-20
Richland, WA 99354
Additional Information:
Questions? Please contact HMIS’s Dana Cowley at dana_c_gribble@rl.gov or EPA’s Roberto Armijo at Armijo.Roberto@epa.gov.
To request disability accommodation, please contact Dana Cowley at dana_c_gribble@rl.gov at least 10 working days prior to the event. DOE makes every effort to honor requests.
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