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The U.S. Nuclear Waste Technical Review Board (Board)1 held its 2018 Spring Meeting in Washington, D.C., on March 27, 2018, to review information from several international repository programs related to (i) operational and performance confirmation monitoring of a geologic repository for high-level radioactive waste (HLW) and spent nuclear fuel (SNF) and (ii) retrievability of emplaced HLW and SNF. This report presents a summary of the meeting and the Board’s observations related to repository monitoring and retrievability of emplaced HLW and SNF.
The U.S. Nuclear Waste Technical Review Board (Board) held the International Technical Workshop on Deep Borehole Disposal of Radioactive Waste in Washington, D.C., on October 20 and 21, 2015, to review the technical and scientific validity of U.S. Department of Energy (DOE) activities related to assessing the feasibility of using deep boreholes to dispose of some radioactive waste. The Board prepared this report based on its review of DOE reports and presentations at the workshop, as well as on the presentations by and discussions among experts from the U.S. and other countries.
This report is based on the Board’s review of U.S. Department of Energy (DOE) reports and studies supporting a new DOE initiative involving the development of two mined geologic repositories: one to dispose of defense high-level radioactive waste (HLW) and possibly some DOE-managed spent nuclear fuel (SNF), and another to dispose of commercially generated HLW and SNF, together with other DOE-managed HLW and SNF.
The purpose of this report is to extract knowledge while it is still available from experiences to date of the Yucca Mountain deep geologic repository program and other management programs for high-activity waste. In this report, the Board examines from a technical perspective the history of the Yucca Mountain program and some other nuclear waste programs and discusses technical information and insights that may be useful for future U.S. high-activity waste management and disposal efforts.
This report describes work being performed by the Board to evaluate the effects on the management of spent nuclear fuel and high-level radioactive waste of various fuel-cycle options being considered by the U.S. Department of Energy (DOE). Of particular interest to the Board are the types and quantities of the radioactive waste streams that would be generated. The Board has developed a computer-based systems analysis tool (NUWASTE) to support its technical evaluation of DOE activities in this area. Included in the report are initial findings from NUWASTE analyses.
This report explores the efforts of 13 nations to find a permanent solution for isolating high-level radioactive waste and spent nuclear fuel generated within their borders. It builds on information in the Board's 2009 Survey of National Programs for Managing High-Level Radioactive Waste and Spent Nuclear Fuel. Unlike the earlier document, however, this report describes the programs and their histories and discusses inferences that can be drawn from their experiences.
Between March 1, 2006, and December 31, 2007, the period covered by this report, the Board focused its evaluation on five critical technical issues dealing with pre-closure operations of the waste management system and on six critical technical issues dealing with post-closure performance of the proposed Yucca Mountain repository. The Board also explored in depth the crosscutting issue of thermal management. The Board’s views on these issues are explained in greater detail in the body of this report.
In this report, the U.S. Nuclear Waste Technical Review Board presents its evaluation of revised DOE estimates of water infiltration at Yucca Mountain. The infiltration estimates were revised because violations of quality assurance procedures were alleged to have been committed by U.S. Geological Survey employees involved in gathering and analyzing infiltration data at Yucca Mountain in the 1990's.
This report, which is the Board's second report of 2006, contains summaries of Board findings and recommendations contained in the following: letters to the Director of the Office of Civilian Radioactive Waste Management (OCRWM) following Board meetings held in February, May, and September 2006, a letter and enclosures sent to the Director of OCRWM following a Board workshop on deliquescence-induced localized corrosion in September 2006, and testimony presented in May 2006 by the Board's Chairman before the Senate Energy and Natural Resources Committee.
In this report, the Board summarizes its major activities from January 1, 2005, through February 28, 2006. During that period, the Board focused its attention on the Project's efforts to develop post-closure performance estimates for the repository it proposes to construct at Yucca Mountain in Nevada. Correspondence and related materials are included in the appendices to the report along with the Board's strategic plan for fiscal years 2004-2009, its performance plans for fiscal years 2005-2006, and its performance evaluation for 2005.
In this letter report to the U.S. Congress and the Secretary of Energy, the Board presents its views on the status of some important issues related to the technical basis for the U.S. Department of Energy's activities related to the waste management system, the engineered system, the natural system, the repository system, and the assessment of the performance of the systems. The Board also outlines issues that it expects may continue to be of interest in the future.
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