By Aaron Norton and David D. Susong
Southwestern Utah is one of the most arid and fastest growing regions of Utah. Development of new and existing water resources will be required to meet the water needs of the region. Sand Cove Wash, a tributary of the Santa Clara River that flows into Gunlock Reservoir, was investigated as a potential site for diverting peak runoff from the Santa Clara River in order to delay its arrival at the reservoir or to artificially recharge alluvial sediment or the underlying Navajo aquifer. Hydrologic data collected in this study are described and listed in this report. Six boreholes were drilled in Sand Cove Wash to determine the vertical and spatial distribution of the alluvial deposits and their hydrologic properties. Nine to 13 feet of fine alluvial sand is underlain by 50 to 70 feet of fine silt and clay. Core samples were analyzed for specific conductance of leachates, particle-size distribution, and saturated vertical hydraulic conductivity. Specific-conductance values of leachates ranged from 23 to 2,940 microsiemens per centimeter. Vertical hydraulic-conductivity values from selected samples ranged from 1.92 x 10-4 to 2.5 feet per day. .
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OF2004_1328.pdf (262 kb)
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Description of Study Area
Particle-Size Distribution and Hydraulic Conductivity
Send questions or comments about this report to the author, David Susong at firstname.lastname@example.org, 801.908.5066.
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