The hydrogeochemistry of the principal aquifers in Las Vegas Valley, Nevada and the chemical effects of artificial recharge of Colorado River water

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Authors

Weaver, Sarah C

Issue Date

1982

Type

Thesis

Language

en_US

Keywords

Chemical Analysis , Wells , Aquifers , Las Vegas Valley , Nevada , Water Chemistry , Lithologic Variations , Aquiger Material , Recharge , Chemical Species , Mineral Saturation Indices , Q-mode Factor Analysis , Sulfate , Calcium , Magnesium , Bicarbonate , Flow Path , Sulfate Water , Bicarbonate Water , Carbonate Rock Aquiger , Calcite Concentration , Colorado River , Calcite , Artificial Recharge , Mackay Theses and Dissertations Grant Collection

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Abstract

Chemical analyses of samples collected from 32 wells in the principal aquifers in Las Vegas Valley indicate that water chemistry varies throughout the aquifer, reflecting lithologic variations in aquifer material and specific sources of recharge. Chemical species and mineral saturation indices plotted on maps and diagrams, and Q-mode factor analyses delineate three groups located in west central, northern, and southern Las Vegas Valley. In west central Las Vegas Valley, decreasing sulfate, calcium, and magnesium and increasing bicarbonate along the flow path suggests that a higher sulfate water from the southwest is mixing with a higher bicarbonate water from the northwest. However, the data suggest recharge from a deep carbonate rock aquifer may also be causing this trend. Calcite saturation indices calculated from chemical analyses of treated Colorado River water suggest that calcite may precipitate near the well during artificial recharge of this water into the principal aquifers.

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University of Nevada, Reno

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In Copyright(All Rights Reserved)

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