Review of the Department of Energy's Plans for Disposal of Surplus Plutonium in the Waste Isolation Pilot Plant (2020) / Chapter Skim
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3 Transuranic waste is defined in Section 2 of the Waste Isolation Pilot Plant Land Withdrawal Act (LWA)
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. Those studies found that a dilute and dispose approach -- diluting the oxidized plutonium material with an inert adulterant to a level that would meet PMDA requirements while meeting the waste acceptance criteria for disposal as TRU waste at WIPP -- was the most viable and least expensive option.
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FIGURE S-2 Schematic of the Waste Isolation Pilot Plant (WIPP) showing the aboveground or surface facilities (at the top of the image)
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shown with orange arrows, and TRU waste transport shown with a light blue arrow)
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waste in the Waste Isolation Pilot Plant. Prior to emplacement of the DSP-TRU waste by the Department of Energy's (DOE's)
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calculations, the committee updated the volumes of specific waste streams noted in its Interim Report: Greater-Than-Class-C-like wastes, tank wastes, and TRU waste generated by pit production. Recent DOE-reported volumes for emplaced and future TRU wastes were used (DOE-CBFO, 2018a, 2019a; see Table 3-2)
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and DOE's National Nuclear Security Administration's (DOE-NNSA's) dilute and dispose plans, the DOE-NNSA Administrator, in consultation with the DOE-EM Assistant Secretary, should prioritize and reserve Land Withdrawal Act capacity in WIPP for the full amount of diluted surplus plutonium TRU waste (2,057 cubic meters)
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System vulnerabilities include • WIPP as the single point of failure for the disposal of DSP-TRU waste; • the changing nature of WIPP with the full amount of DSP-TRU emplacement and shifting public opinion; and • plans that span multiple DOE sites, offices, functions, and priorities without clear crosscutting leadership support. An inability of WIPP to accept and emplace TRU wastes is a single point of failure for the dilute and dispose programs as well as for other DOE TRU waste programs.
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to consider fully the environmental impacts of the total diluted surplus plutonium transuranic waste inventory (up to an additional 48.2 metric tons) targeted for dilution at the Savannah River Site and disposal at the Waste Isolation Pilot Plant (WIPP)
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TRU Wastes Compared to Wastes in Other 55-Gallon Drum Containers a Technical Baseline Description, SRNS, 2018b. b Number of waste streams derived from WDS/WWIS as of September 30, 2019, from https://wipp.energy.gov/WDSPA, accessed May 20, 2020.
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for disposal at the Waste Isolation Pilot Plant. Such actions include completing and publicizing the outcome of relevant safety analyses and cost estimates.
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