Use of Mercury Receipts

What this funds

This Project Baseline Summary (PBS) is within the Non-Defense Environmental Cleanup appropriation. The decontamination and decommissioning program at the West Valley Demonstration Project encompasses the facilities, tanks and hardware used during high-level radioactive waste solidification efforts. Decontamination and decommissioning activities were subject to a Final Environmental Impact Statement which was completed in January 2010 and a Record of Decision was issued in April 2010. DOE has selected a phased approach for decommissioning activities at the West Valley Demonstration Project. During Phase 1A, 278 HLW canisters were removed from the Main Plant Process Building (MPPB) and relocated to a new on-site interim storage system, over 40 balance of site facilities were removed, and the MPPB and Vitrification (Vit) Facility were demolished to grade. In October 2024, DOE awarded an End State Contract Model Contract to West Valley Cleanup Alliance to execute Phase 1B of the phased approach. During Phase 1B, which began in June 2025, the below-grade portion of the MPPB and Vit Facility will be removed, as well as the Liquid Watse Treatment System (as well as four active and one inactive lagoon).The decontamination and decommissioning will be performed consistent with the Nuclear Regulatory Commission criteria per the approved decommissioning plan. To support decontamination and

Extracted from doe fy 2027 volume 5 em, p. 377. Verbatim; nothing here is paraphrased. This is a different document from the one the figures above were read off — the agency prints this line's dollars in a summary table and its justification elsewhere.

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