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.