Water-level declines in the Amargosa Valley area, Nye County, Nevada, 1962-84

Groundwater flow in the Amargosa Valley area is in Nevada complex and involves a valley fill aquifer and an underlying carbonate rock aquifer. Groundwater development in the area is in the valley fill aquifer, about 10 mi. south-west of Lathrop Wells. Water levels measured in selected wells in the area in 1984 are lower than those measured in 1962, demonstrating that water levels have undergone a net decline since 1962. An implied water level rise and resulting groundwater mound suggested on a map from a U.S. Bureau of Reclamation report appear to be based on the inadvertent misplotting of two wells. Data presented in this report indicate that the implied mound does not exist. (Lantz-PTT)