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EIS-0240-SA-01: Supplement Analysis

Disposition of Surplus Highly Enriched Uranium

This supplement analysis (SA) summarizes the status of HEU disposition activities conducted to date and evaluates the potential impacts of continued program implementation. In addition, this SA considers the potential environmental impacts of proposed new DOE/NNSA initiatives to support the surplus HEU disposition program. Specifically, DOE/NNSA is proposing new end-users for existing program material, new disposal pathways for existing program HEU discard material, and down-blending additional quantities of HEU.