Vertical electrical resistivity soundings were conducted in order to delineate the groundwater potentials at some locations in Ezza North Local Government of Ebonyi State. Twelve vertical electrical soundings were obtained using the Schlumberger configuration with the aid of the OHMEGA terramenter (SAS1000).The field data were subjected to interpretation by employing the method of manual partial curve matching techniques using the master curves and the corresponding auxiliary curves. A computer programme (RESOUND) was also used to interpret the data. The parameters obtained were used to determine the resistivities and thicknesses of the subsurface layers. The major lithologic units of the area are shales, sandstone and mudstone. The water bearing rocks were interpreted to exist at depths between 20m and 130m. The results fairly correlated with some logged boreholes close to the survey area. The aquifers have resistivities ranging between 9Ωm and 110Ωm. The geophysical search for groundwater has shown that the survey area has good groundwater potentials which if exploited would go a long way in reducing the problems of seasonal water shortage and health problems associated with the consumption of unhygienic surface water in the area.

Keyword:Resistivity, VES, groundwater, terrameter, geoelectric layer, aquifer

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