Photo by Ralph

Scenario 2

Scenario 2 presents a model simulation that was conducted to determine the effects of constant withdrawal rates (representing the time period from 1990-1997) throughout most of the model area while reducing the withdrawal in the industrial areas in Pine Bluff and El Dorado. Selected industrial withdrawals in the Pine Bluff and El Dorado cones of depression were removed to simulate effects of industry changing to alternate sources of water (water reuse, surface-water diversions). These withdrawals represent the three largest industrial users of water from the Sparta aquifer in El Dorado and single largest industrial user in Pine Bluff.

The results of scenario 2 indicate that the removal of selected industrial withdrawals in the Pine Bluff area results in a shallower and less expansive cone of depression relative to scenario 1. In the center of the cone, hydraulic heads rise more than 120 ft by 2027. Removal of selected industrial withdrawals in the El Dorado area also results in a shallower and less expansive cone of depression relative to scenario 1. In the center of the cone, hydraulic heads recover more than 165 feet by 2027. Hydraulic heads recover above the top of the Sparta Sand by 2027 over most of Union County. The area of Union County where hydraulic heads are below the top of the Sparta Sand decreases from 51.9 percent in 1997 to 7.3 percent in 2027.