Communities in southeastern Tooele Valley, Utah, are growing, and future demand for water is expected to increase. To prepare for this demand, local surface- and ground-water resources were evaluated.
Average streamflow in Settlement, Middle, and Soldier Canyons is about 6,000, 2,100, and 3,900 acre-feet per year, respectively. The combined average perennial streamflow of Pine, Pole, Swensons, Leavetts, and Pass Canyons is about 700 acre-feet per year.
Average ground-water recharge to basin-fill deposits in southeastern Tooele Valley is about 44,000 acre-feet per year. Discharge approximately equals recharge. Specific capacity of wells in the basin fill ranges from less than 1 to 180 gallons per minute per foot of drawdown, and dissolved-solids concentration ranges from 363 to 1,550 milligrams per liter.
Stream-channel deposits are recharged mainly by streamflow losses and subsurface inflow. Average discharge from stream-channel deposits in Settlement and Middle Canyons is about 2,100 and 3,400 acre-feet per year, respectively. Specific capacity of wells in the stream-channel deposits ranges from less than 1 to 45 gallons per minute per foot of drawdown, and dissolved-solids concentration ranges from 320 to 350 milligrams per liter. Average ground-water recharge to consolidated rock is about 42,000 acre-feet per year. Discharge, mainly by subsurface outflow to southeastern Tooele Valley, approximately equals recharge. Locations of springs in consolidated rock are not correlated with known topographic or geologic features. Specific capacity of wells in the consolidated rock ranges from less than 1 to 97 gallons per minute per foot of drawdown, and dissolved-solids concentration ranges from 220 to 1,400 milligrams per liter.
Areas southwest of Tooele City and near Lincoln are considered to have potential for additional ground-water withdrawal.
