Ground-water conditions and storage in the Central Sevier Valley, Utah

The central Sevier Valley, in the central part of Utah, extends from the town of Kingston to the Yuba Dam and from the Tushar and Valley Mountains and the Pavant Range to the Sevier, Fishlake, Wasatch, and Gunnison Plateaus. A geologic and hydrologic investigation of the valley was made to determine the relation between surface water and ground water and to determine if ground water can be used for irrigation supplies without affecting existing water uses. During the investigation, data were collected for about 700 wells and 26 springs. Monthly water-level measurements were made at 93 observation wells, and automatic recording gages were maintained at 6 additional wells. Chemical analyses were made of water collected from 68 wells and springs. Test holes were drilled at 21 sites to determine the thickness and hydrologic properties of the waterbearing materials. Consumption of ground water by vegetation was estimated on the basis of area and applied rates of evapotranspiration.