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Title: Total System Performance Assessment, 1993: An evaluation of the potential Yucca Mountain repository

Abstract

Total System Performance Assessments are an important component in the evaluation of the suitability of Yucca Mountain, Nevada as a potential site for a mined geologic repository for the permanent disposal of high-level radioactive wastes in the United States. The Total System Performance Assessments are conducted iteratively during site characterization to identify issues which should be addressed by the characterization and design activities as well as providing input to regulatory/licensing and programmatic decisions. During fiscal years 1991 and 1992, the first iteration of Total System Performance Assessment (hereafter referred to as TSPA 1991) was completed by Sandia National Laboratories and Pacific Northwest Laboratory. Beginning in fiscal year 1993, the Civilian Radioactive Waste Management System Management and Operating Contractor was assigned the responsibility to plan, coordinate, and contribute to the second iteration of Total System Performance Assessment (hereafter referred to as TSPA 1993). This document presents the objectives, approach, assumptions, input, results, conclusions, and recommendations associated with the Management and Operating Contractor contribution to TSPA 1993. The new information incorporated in TSPA 1993 includes (1) revised estimates of radionuclide solubilities (and their thermal and geochemical dependency), (2) thermal and geochemical dependency of spent fuel waste alteration and glass dissolution rates, (3)more » new distribution coefficient (k{sub d}) estimates, (4) revised estimates of gas-phase velocities and travel times, and (5) revised hydrologic modeling of the saturated zone which provides updated estimates of the advective flux through the saturated zone.« less

Authors:
; ;
Publication Date:
Research Org.:
INTERA, Inc., Las Vegas, NV (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
145326
Report Number(s):
DOE/RW/00134-T12
ON: DE94015955; TRN: 94:015480
DOE Contract Number:  
AC01-91RW00134
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Mar 1994
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; YUCCA MOUNTAIN; RADIOACTIVE WASTE DISPOSAL; EVALUATION; HIGH-LEVEL RADIOACTIVE WASTES; RADIOACTIVE WASTE FACILITIES; PERFORMANCE; ENGINEERED SAFETY SYSTEMS; RADIONUCLIDE MIGRATION; RADIATION DOSES; PACKAGING; SITE SELECTION; HYDROLOGY; Yucca Mountain Project

Citation Formats

Andrews, R.W., Dale, T.F., and McNeish, J.A. Total System Performance Assessment, 1993: An evaluation of the potential Yucca Mountain repository. United States: N. p., 1994. Web. doi:10.2172/145326.
Andrews, R.W., Dale, T.F., & McNeish, J.A. Total System Performance Assessment, 1993: An evaluation of the potential Yucca Mountain repository. United States. doi:10.2172/145326.
Andrews, R.W., Dale, T.F., and McNeish, J.A. Tue . "Total System Performance Assessment, 1993: An evaluation of the potential Yucca Mountain repository". United States. doi:10.2172/145326. https://www.osti.gov/servlets/purl/145326.
@article{osti_145326,
title = {Total System Performance Assessment, 1993: An evaluation of the potential Yucca Mountain repository},
author = {Andrews, R.W. and Dale, T.F. and McNeish, J.A.},
abstractNote = {Total System Performance Assessments are an important component in the evaluation of the suitability of Yucca Mountain, Nevada as a potential site for a mined geologic repository for the permanent disposal of high-level radioactive wastes in the United States. The Total System Performance Assessments are conducted iteratively during site characterization to identify issues which should be addressed by the characterization and design activities as well as providing input to regulatory/licensing and programmatic decisions. During fiscal years 1991 and 1992, the first iteration of Total System Performance Assessment (hereafter referred to as TSPA 1991) was completed by Sandia National Laboratories and Pacific Northwest Laboratory. Beginning in fiscal year 1993, the Civilian Radioactive Waste Management System Management and Operating Contractor was assigned the responsibility to plan, coordinate, and contribute to the second iteration of Total System Performance Assessment (hereafter referred to as TSPA 1993). This document presents the objectives, approach, assumptions, input, results, conclusions, and recommendations associated with the Management and Operating Contractor contribution to TSPA 1993. The new information incorporated in TSPA 1993 includes (1) revised estimates of radionuclide solubilities (and their thermal and geochemical dependency), (2) thermal and geochemical dependency of spent fuel waste alteration and glass dissolution rates, (3) new distribution coefficient (k{sub d}) estimates, (4) revised estimates of gas-phase velocities and travel times, and (5) revised hydrologic modeling of the saturated zone which provides updated estimates of the advective flux through the saturated zone.},
doi = {10.2172/145326},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {3}
}