ABSTRACT

The 2-D Electrical Resistivity Method (ERM) which has been widely used for aquifer detection was carried out in Ugbowo Community of Egor Local Government Area in Edo State to investigate water aquifers present in the area, and to assess its sustenance for adequate water supply in the University of Benin Teaching Hospital and its environs. The 2-D resistivity imaging was carried out along two traverses employing the Dipole-Dipole Configuration with the ABEM Terrameter SAS 300C. The data obtained were subjected to modelling using the Dipro software to generate the two-dimensional imaging slices of the subsurface. The interpreted results showed three to four distinct geologic layers: Clayey, Clayey Sand, very wet sand at depth beyond 50m and very dry coarse sand. The geophysical results were used to determine the depth, thickness of the recommended aquifer or water bearing formation. The resistivities varied from about 50 to 7814 for traverse 2 and about 177 to 977 for traverse 7 while its depths beyond 15m. The studied area may hold good prospect for groundwater in view of the probable thick aquifer layers.