A well is installed in a 50-ft-thick sandstone aquifer confined under an impervious overburden with a depth of 100 ft. The diameter of the screen and gravel pack in the aquifer is 2.0 ft. Based on test well data, the piezometric surface is at a depth of 30 ft below the ground surface, the radius of the cone of depression is 1000 ft, and the permeability of the sandstone is 2.5 x 10-4ft/sec. Calculate the estimated pumping rate that will lower the water level in the well to the top of the sandstone aquifer.
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