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Nuclear Waste: Plans for Addressing Most Buried Transuranic Wastes Are Not Final, and Preliminary Cost Estimates Will Likely Increase

GAO-07-761 Published: Jun 22, 2007. Publicly Released: Jun 22, 2007.
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Highlights

Since the 1940s, the development of nuclear weapons technologies has generated transuranic wastes--materials contaminated by certain man-made radioactive elements. These wastes can remain dangerous for thousands of years. Until 1970, the Department of Energy's (DOE) predecessors buried these wastes in shallow pits and trenches. Today, state officials and communities near DOE's major disposal sites have expressed concerns that such wastes might contaminate important ground and surface water resources. GAO was asked to (1) determine the legal requirements and policies affecting DOE's efforts to address transuranic wastes buried before 1970, (2) determine what DOE is doing to address sites where these transuranic wastes are buried, and (3) assess the reliability of DOE's estimated costs to address these sites. We met with federal and state officials at five DOE sites containing buried transuranic wastes, reviewed environmental laws and guidance, and obtained buried waste cleanup cost estimates from each site. In commenting on this report, DOE generally agreed with our findings, and provided some clarifying comments.

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Cost analysisEnvironmental cleanupsEnvironmental monitoringFederal regulationsHazardous wastesLaboratoriesNuclear waste disposalRadioactive waste disposalWaste managementCost estimates