The City of Evansville, Ind. has utilized the Ohio River as a source of municipal water supply for many years. The average daily pumpage for the city in 1950 was reported to be about 18.5 million gallons. Because of the extreme variability in the quality of the river water and the extensive treatment necessary, the city considered the possibility of developing a ground-water supply to supplement its present surface-water supply.
In February, 1951 Mr. Oliver N. Summers, General Superintendent, Evansville Waterworks Department, in a letter to C.K. Behert, Director, Division of Water Resources, Indiana Department of Conservation, requested the assistance of the Department of Conservation and the United States Geological Survey in conducting a pumping test to determine the hydraulic characteristics of the water-bearing formations in the area.
In view of the importance of Evansville as an industrial center and realizing the need for quantitative information in such an area, it was decided that the test should be a part of the statewide investigation of the ground-water resources now being made by the U.S. Geological Survey in cooperation with the Indiana Department of Conservation.
This memorandum describes the procedure used in making the test and the results obtained from the test.
