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Executive Summary
Pages 1-2

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From page 1...
... The amount of waste to be re- this must be done after waste retrieval when mixing trieved from these tanks and how much of that should makes representative sampling of the retrieved waste be disposed on-site is a decision in which DOE must possible and when samples of the tank heels can be consider a range of technical and nontechnical factors, taken. including technical capabilities for waste retrieval and · DOE should decouple its schedule for tank waste radionuclide separation from the removed wastes; cost, retrieval from its schedule for tank closure for those both in terms of dollars spent and worker doses tanks that still contain significant amounts of radio incurred per increment of risk reduction achieved; and active material after initial waste retrieval is com the potential risks from other wastes to be left on-site.
From page 2...
... The report provides several site-specific findings and recommendations; these are summarized below: · These include remediation of plugged and leaking underground pipes and interwall spaces in double · Savannah River Site: The committee has serious reser- walled tanks; the disposition of calcine bin waste at vations about aspects of DOE's plans for tank closure, the Idaho site; regulatory approvals for the off-site dis including the point of compliance and assumptions posal of some Hanford tank waste and Idaho sodium about exposure scenarios and waste inventories remain- bearing tank waste; the philosophy and methodology ing after tank cleanup. The committee is also concerned for post-closure monitoring; and plans for carrying out about DOE's plans to dispose of large inventories of long-term stewardship, including how the federal radionuclides in the Saltstone Vaults on-site, and that government will maintain control "in perpetuity" at the tank space crisis may lead DOE to dispose of addi- sites unsuitable for unrestricted release.

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