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

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Description

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 ... continued below

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273 p.

Creation Information

Rutherford, B.M.; Hall, I.J.; Peters, R.R.; Easterling, R.G. & Klavetter, E.A. February 1, 1992.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

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.

Physical Description

273 p.

Notes

INIS; OSTI as DE92010759

Source

  • Other Information: PBD: Feb 1992

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  • Other: DE92010759
  • Report No.: SAND--87-2380
  • Grant Number: AC04-76DP00789
  • DOI: 10.2172/138373 | External Link
  • Office of Scientific & Technical Information Report Number: 138373
  • Archival Resource Key: ark:/67531/metadc626086

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • February 1, 1992

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 14, 2016, 8:09 p.m.

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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, report, February 1, 1992; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc626086/: accessed December 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.