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Title: Development of the Performance Confirmation Program at Yucca Mountain, Nevada

Abstract

The Yucca Mountain Performance Confirmation program consists of tests, monitoring activities, experiments, and analyses to evaluate the adequacy of assumptions, data, and analyses that form the basis of the conceptual and numerical models of flow and transport associated with a proposed radioactive waste repository at Yucca Mountain, Nevada. The Performance Confirmation program uses an eight-stage risk-informed, performance-based approach. Selection of the Performance Confirmation activities (a parameter and a test method) for inclusion in the Performance Confirmation program was done using a risk-informed performance-based decision analysis. The result of this analysis and review was a Performance Confirmation base portfolio that consists of 20 activities. The 20 Performance Confirmation activities include geologic, hydrologic, and construction/engineering testing. Several of the activities were initiated during site characterization and are ongoing. Others activities will commence during construction and/or post emplacement and will continue until repository closure.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Yucca Mountain Project, Las Vegas, Nevada
Sponsoring Org.:
USDOE
OSTI Identifier:
893813
Report Number(s):
NA
MOL.20060425.0184, DC# 47436; TRN: US0606152
DOE Contract Number:
NA
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CONSTRUCTION; MONITORING; PERFORMANCE; POSITIONING; RADIOACTIVE WASTES; SITE CHARACTERIZATION; TESTING; TRANSPORT; YUCCA MOUNTAIN

Citation Formats

G.D. LeCain, D. Barr, D. Weaver, R. Snell, S.W. Goodin, and F.D. Hansen. Development of the Performance Confirmation Program at Yucca Mountain, Nevada. United States: N. p., 2006. Web. doi:10.2172/893813.
G.D. LeCain, D. Barr, D. Weaver, R. Snell, S.W. Goodin, & F.D. Hansen. Development of the Performance Confirmation Program at Yucca Mountain, Nevada. United States. doi:10.2172/893813.
G.D. LeCain, D. Barr, D. Weaver, R. Snell, S.W. Goodin, and F.D. Hansen. Fri . "Development of the Performance Confirmation Program at Yucca Mountain, Nevada". United States. doi:10.2172/893813. https://www.osti.gov/servlets/purl/893813.
@article{osti_893813,
title = {Development of the Performance Confirmation Program at Yucca Mountain, Nevada},
author = {G.D. LeCain and D. Barr and D. Weaver and R. Snell and S.W. Goodin and F.D. Hansen},
abstractNote = {The Yucca Mountain Performance Confirmation program consists of tests, monitoring activities, experiments, and analyses to evaluate the adequacy of assumptions, data, and analyses that form the basis of the conceptual and numerical models of flow and transport associated with a proposed radioactive waste repository at Yucca Mountain, Nevada. The Performance Confirmation program uses an eight-stage risk-informed, performance-based approach. Selection of the Performance Confirmation activities (a parameter and a test method) for inclusion in the Performance Confirmation program was done using a risk-informed performance-based decision analysis. The result of this analysis and review was a Performance Confirmation base portfolio that consists of 20 activities. The 20 Performance Confirmation activities include geologic, hydrologic, and construction/engineering testing. Several of the activities were initiated during site characterization and are ongoing. Others activities will commence during construction and/or post emplacement and will continue until repository closure.},
doi = {10.2172/893813},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Mar 17 00:00:00 EST 2006},
month = {Fri Mar 17 00:00:00 EST 2006}
}

Technical Report:

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  • The Yucca Mountain Performance Confirmation program consists of tests, monitoring activities, experiments, and analyses to evaluate the adequacy of assumptions, data, and analyses that form the basis of the conceptual and numerical models of flow and transport associated with a proposed radioactive waste repository at Yucca Mountain, Nevada. The Performance Confirmation program uses an eight-stage risk-informed, performance-based approach. Selection of the Performance Confirmation activities (a parameter and a test method) for inclusion in the Performance Confirmation program was done using a risk-informed performance-based decision analysis. The result of this analysis and review was a Performance Confirmation base portfolio that consistsmore » of 20 activities. The 20 Performance Confirmation activities include geologic, hydrologic, and construction/engineering testing. Several of the activities were initiated during site characterization and are ongoing. Others activities will commence during construction and/or post emplacement and will continue until repository closure.« less
  • The present paper presents considerations on studies that would be required for preclosure monitoring and performance confirmation of a nuclear waste geologic repository in an unsaturated zone. The critical parameters that should be monitored are reviewed and two scales of measurement relevant to monitoring activities, room scale and repository scale, are taken as a framework for investigation. A number of monitoring methods based on geophysics, geohydrology, and geochemistry are briefly summarized for their potential usefulness for preclosure monitoring and performance confirmation of the geologic repository. Particular emphasis is given to measurement of the spatial distribution of parameters in contrast tomore » single-point measurements of quantities. 12 refs., 1 fig., 1 tab.« less
  • The SCPCD has identified a number of key issues that need to be addressed for characterization of the Yucca Mountain site. A variety of complex experiments have been proposed in an attempt to address these issues. Although a lot of time, money and effort has been spent on characterizing the Yucca Mountain area to date, there are still many unresolved technical issues. Since many of the experiments proposed in the SCPCD have never been done in an unsaturated fractured media, it is impossible to tell if they will be successful. Results of these experiments may indicate that new test designsmore » or data collection procedures are needed to address the issues. Our approach to reviewing the SCPCD has been to first identify key technical issues which have not been resolved and to make specific comments associated with the hydrologic experiments proposed.« less
  • The comments presented here represent a review effort by the Nevada Agency for Nuclear Projects and its Technical Support Contractors and advisors. Part I presents an overview of the comments contained in the document. The overview takes the form of general concerns and comments organized by specific areas of concern. The overview does not follow the format of the CD-SCP. Part II contains specific comments of the Nevada Agency for Nuclear Projects. These comments respond to specifics of the CD-SCP and do so in relation to the organizational format employed in the CD-SCP. Because of the way it is organized,more » the CD-SCP encouraged a certain degree of redundancy in our response. Part III of this document contains verbatim comments received from the Agency`s Technical Contractors and advisors. These comments address issues and contain information not contained in Parts I and II. As such, these comments should be viewed as important in their own right -- not as appendices to the State`s comment document.« less