DOE prepared a Supplement Analysis of the Final Tank Closure and Waste Management Environmental Impact Statement for the Hanford Site, Richland, Washington, regarding 200 West Area Tank Waste Treatment (DOE/EIS-0391-SA-05).
Office of NEPA Policy and Compliance
October 21, 2025
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200 West Area Tank Waste Treatment at the Hanford Site; Richland, Washington
DOE prepared a supplement analysis (DOE/EIS-0391-SA-05) to assess the proposed action of implementing alternative treatment of 200 West Area tank wastes from 22 to 24 shell waste storage tanks from the S, SX, and U tank farms.
For more information, see Tank Closure and Waste Management for the Hanford Site.