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Title: Statistical analysis of hydrologic data for Yucca Mountain; Yucca Mountain Site Characterization Project

Abstract

The geologic formations in the unsaturated zone at Yucca Mountain are currently being studied as the host rock for a potential radioactive waste repository. Data from several drill holes have been collected to provide the preliminary information needed for planning site characterization for the Yucca Mountain Project. Hydrologic properties have been measured on the core samples and the variables analyzed here are thought to be important in the determination of groundwater travel times. This report presents a statistical analysis of four hydrologic variables: saturated-matrix hydraulic conductivity, maximum moisture content, suction head, and calculated groundwater travel time. It is important to modelers to have as much information about the distribution of values of these variables as can be obtained from the data. The approach taken in this investigation is to (1) identify regions at the Yucca Mountain site that, according to the data, are distinctly different; (2) estimate the means and variances within these regions; (3) examine the relationships among the variables; and (4) investigate alternative statistical methods that might be applicable when more data become available. The five different functional stratigraphic units at three different locations are compared and grouped into relatively homogeneous regions. Within these regions, the expected valuesmore » and variances associated with core samples of different sizes are estimated. The results provide a rough estimate of the distribution of hydrologic variables for small core sections within each region.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
138373
Report Number(s):
SAND-87-2380
ON: DE92010759; TRN: 92:011762
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Feb 1992
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; HIGH-LEVEL RADIOACTIVE WASTES; UNDERGROUND DISPOSAL; YUCCA MOUNTAIN; HYDROLOGY; STATISTICAL MODELS; COMPILED DATA; HYDRAULIC CONDUCTIVITY; GROUND WATER; MOISTURE; Yucca Mountain Project

Citation Formats

Rutherford, B.M., Hall, I.J., Peters, R.R., Easterling, R.G., and Klavetter, E.A. Statistical analysis of hydrologic data for Yucca Mountain; Yucca Mountain Site Characterization Project. United States: N. p., 1992. Web. doi:10.2172/138373.
Rutherford, B.M., Hall, I.J., Peters, R.R., Easterling, R.G., & Klavetter, E.A. Statistical analysis of hydrologic data for Yucca Mountain; Yucca Mountain Site Characterization Project. United States. doi:10.2172/138373.
Rutherford, B.M., Hall, I.J., Peters, R.R., Easterling, R.G., and Klavetter, E.A. Sat . "Statistical analysis of hydrologic data for Yucca Mountain; Yucca Mountain Site Characterization Project". United States. doi:10.2172/138373. https://www.osti.gov/servlets/purl/138373.
@article{osti_138373,
title = {Statistical analysis of hydrologic data for Yucca Mountain; Yucca Mountain Site Characterization Project},
author = {Rutherford, B.M. and Hall, I.J. and Peters, R.R. and Easterling, R.G. and Klavetter, E.A.},
abstractNote = {The geologic formations in the unsaturated zone at Yucca Mountain are currently being studied as the host rock for a potential radioactive waste repository. Data from several drill holes have been collected to provide the preliminary information needed for planning site characterization for the Yucca Mountain Project. Hydrologic properties have been measured on the core samples and the variables analyzed here are thought to be important in the determination of groundwater travel times. This report presents a statistical analysis of four hydrologic variables: saturated-matrix hydraulic conductivity, maximum moisture content, suction head, and calculated groundwater travel time. It is important to modelers to have as much information about the distribution of values of these variables as can be obtained from the data. The approach taken in this investigation is to (1) identify regions at the Yucca Mountain site that, according to the data, are distinctly different; (2) estimate the means and variances within these regions; (3) examine the relationships among the variables; and (4) investigate alternative statistical methods that might be applicable when more data become available. The five different functional stratigraphic units at three different locations are compared and grouped into relatively homogeneous regions. Within these regions, the expected values and variances associated with core samples of different sizes are estimated. The results provide a rough estimate of the distribution of hydrologic variables for small core sections within each region.},
doi = {10.2172/138373},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Feb 01 00:00:00 EST 1992},
month = {Sat Feb 01 00:00:00 EST 1992}
}

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