Conceptualizing of the Pre-developed Groundwater Flow System and Transient Water-Level Responses in Yucca Flat, Nevada National Security Site, Nevada - Softcover

Inhaltsangabe

Contaminants introduced into the subsurface of Yucca Flat, Nevada National Security Site, by underground nuclear testing are of concern to the U.S. Department of Energy and regula- tors responsible for protecting human health and safety. The potential for contaminant movement away from the under- ground test areas and into the accessible environment is great- est by groundwater transport. The primary hydrologic control on this transport is evaluated and examined through a set of contour maps developed to represent the hydraulic-head dis- tribution within the two major aquifer systems underlying the area. Aquifers and confining units within these systems were identified and their extents delineated by merging and analyz- ing hydrostratigraphic framework models developed by other investigators from existing geologic information. Maps of the hydraulic-head distributions in the major aquifer systems were developed from a detailed evaluation and assessment of avail- able water-level measurements. The maps, in conjunction with regional and detailed hydrogeologic cross sections, were used to conceptualize flow within and between aquifer systems.

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