Hydrogeologic investigation of the Littlefield Springs
AuthorTrudeau, Douglas A
AdvisorJacobson, Roger L. L.
Geological Sciences & Engineering
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A hydrogeologic investigation was conducted to determine the source of the Littlefield Springs, a series of springs occurring along the Virgin River in the northwestern corner of Arizona. The Littlefield Springs have essentially constant quantity and quality discharge of 65 cfs at 2940 ppm TDS. Tritium age dating shows two ages of water; one a minimum of 22 years old, the other less than 22 years old. Analysis of the influent Virgin River upstream of the springs shows 51 cfs loss at 2130 ppm TDS and the same ratio of dissolved constituents as the springs. An estimate of local recharge to the influent river/springs basin is 11 cfs. The best explanation of the Littlefield Springs source are infiltration of rainfall in the local area (less than 22 years old} and influent Virgin River water (minimum 22 years old).
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