Groundwater Potential Evaluation Using Geo-electrical Resistivity Method

Abstract

A resistivity survey was carried out at the permanent site of Federal College of Chemical and Leather Technology (CHELTECH), Zaria, with the aim of investigating the subsurface for groundwater potential. A total of thirty nine (39) vertical electrical sounding (VES) points were occupied along six profiles that run North-South of the study area using the Schlumberger electrode configuration. A maximum electrode spacing of 100m was employed at all the sounding points. Result from the interpreted data show that the study area comprises of different lithology which are mostly clay/sandy soil, laterite, weathered layer, fractured basement and fresh basement. Based on the result obtained, the weathered basement is considered as the aquiferous zone in the study area. It has a thickness that varies between 1 and 37m. From the result of this work, the It is found on the various profile around the following VES points; 24, 25, 36, 21, 18, 30, 7 and 8.