A knowledge of hydrogeophysical parameters of aquifers is essential for groundwater resource
assessment, development and management. Traditionally, these parameters are estimated using
pumping test carried out in boreholes or wells; but this is often costly and time consuming. Surface
geophysical measurements can provide a cost effective and efficient estimates of these parameters. In
the present work, geoelectrical resistivity data has been used to characterize and evaluate the aquifer
potential at Covenant University, Ota, southwestern Nigeria. Some thirty-five vertical electrical
soundings (VESs) were conducted using Schlumberger array with a maximun half-current electrode
spacing (AB/2) of 240 m. The geoelectrical parameters obtained were used to estimate longitudinal
conductance and transverse resistance of the delineated aquifer. Both the longitudinal conductance
and transverse resistance, which qualitatively reflects the hydraulic properties of the aquifer, indicate
that the aquifer unit is characterized with high values of hydraulic parameters; consequently a good
groundwater potential. Thus, groundwater resource development and management in the area can be
effectively planned based on these parameters
