Hydrology and simulation of ground-water flow in Kamas Valley, Summit County, Utah

Technical Publication 117
Prepared by the United States Geological Survey in cooperation with the Utah Department of Natural Resources, Division of Water Rights; Utah Department of Environmental Quality, Division of Water Quality; Weber Basin Water Conservancy District; Davis and Weber Counties Canal Company; and Weber River Water Users Association
By: , and 



Kamas Valley, Utah, is located about 50 miles east of Salt Lake City and is undergoing residential development. The increasing number of wells and septic systems raised concerns of water managers and prompted this hydrologic study. About 350,000 acre-feet per year of surface water flows through Kamas Valley in the Weber River, Beaver Creek, and Provo River, which originate in the Uinta Mountains east of the study area. The ground-water system in this area consists of water in unconsolidated deposits and consolidated rock; water budgets indicate very little interaction between consolidated rock and unconsolidated deposits. Most recharge to consolidated rock occurs at higher altitudes in the mountains and discharges to streams and springs upgradient of Kamas Valley. About 38,000 acre-feet per year of water flows through the unconsolidated deposits in Kamas Valley. Most recharge is from irrigation and seepage from major streams; most discharge is to Beaver Creek in the middle part of the valley. Long-term water-level fluctuations range from about 3 to 17 feet. Seasonal fluctuations exceed 50 feet. Transmissivity varies over four orders of magnitude in both the unconsolidated deposits and consolidated rock and is typically 1,000 to 10,000 feet squared per day in unconsolidated deposits and 100 feet squared per day in consolidated rock as determined from specific capacity. Water samples collected from wells, streams, and springs had nitrate plus nitrite concentrations (as N) substantially less than 10 mg/L. Total and fecal coliform bacteria were detected in some surface-water samples and probably originate from livestock. Septic systems do not appear to be degrading water quality. A numerical ground-water flow model developed to test the conceptual understanding of the ground-water system adequately simulates water levels and flow in the unconsolidated deposits. Analyses of model fit and sensitivity were used to refine the conceptual and numerical models.

Study Area

Publication type Report
Publication Subtype Other Government Series
Title Hydrology and simulation of ground-water flow in Kamas Valley, Summit County, Utah
Series title Technical Publication
Series number 117
Year Published 2003
Language English
Publisher Utah Department of Natural Resources, Division of Water Rights
Publisher location Salt Lake City, UT
Contributing office(s) Utah Water Science Center
Description x, 74 p.
Country United States
State Utah
County Summit County
Other Geospatial Kamas Valley
Google Analytic Metrics Metrics page
Additional publication details