Conceptualization of a hypothetical high-level nuclear waste repository site in unsaturated, fractured tuff

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Description

Under the sponsorship of the US Nuclear Regulatory Commission (NRC), Sandia National Laboratories (SNL) is developing a performance assessment methodology for the analysis of long-term disposal and isolation of high-level nuclear wastes (HLW) in alternative geologic media. As part of this exercise, SNL created a conceptualization of ground-water flow and radionuclide transport in the far field of a hypothetical HLW repository site located in unsaturated, fractured tuff formations. This study provides a foundation for the development of conceptual mathematical, and numerical models to be used in this performance assessment methodology. This conceptualization is site specific in terms of geometry, the ... continued below

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Medium: P; Size: 168 p.

Creation Information

Parsons, A. M.; Olague, N. E. & Gallegos, D. P. January 1991.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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  • U.S. Nuclear Regulatory Commission
    Publisher Info: Nuclear Regulatory Commission, Washington, DC (United States). Div. of Engineering
    Place of Publication: Washington D.C.
  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Under the sponsorship of the US Nuclear Regulatory Commission (NRC), Sandia National Laboratories (SNL) is developing a performance assessment methodology for the analysis of long-term disposal and isolation of high-level nuclear wastes (HLW) in alternative geologic media. As part of this exercise, SNL created a conceptualization of ground-water flow and radionuclide transport in the far field of a hypothetical HLW repository site located in unsaturated, fractured tuff formations. This study provides a foundation for the development of conceptual mathematical, and numerical models to be used in this performance assessment methodology. This conceptualization is site specific in terms of geometry, the regional ground-water flow system, stratigraphy, and structure in that these are based on information from Yucca Mountain located on the Nevada Test Site. However, in terms of processes in unsaturated, fractured, porous media, the model is generic. This report also provides a review and evaluation of previously proposed conceptual models of unsaturated and saturated flow and solute transport. This report provides a qualitative description of a hypothetical HLW repository site in fractured tuff. However, evaluation of the current knowledge of flow and transport at Yucca Mountain does not yield a single conceptual model. Instead, multiple conceptual models are possible given the existing information.

Physical Description

Medium: P; Size: 168 p.

Notes

INIS; OSTI as TI91007550

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  • Other Information: PBD: Jan 1991

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  • Other: TI91007550
  • Report No.: NUREG/CR--5495
  • Report No.: SAND--89-2965
  • Grant Number: AC04-76DP00789
  • DOI: 10.2172/137993 | External Link
  • Office of Scientific & Technical Information Report Number: 137993
  • Archival Resource Key: ark:/67531/metadc623335

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  • January 1991

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 14, 2016, 8:21 p.m.

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Parsons, A. M.; Olague, N. E. & Gallegos, D. P. Conceptualization of a hypothetical high-level nuclear waste repository site in unsaturated, fractured tuff, report, January 1991; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc623335/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.