Geoelectrical Survey for Groundwater at the Gidan Kwano Campus of the Federal University of Technology, Minna

Abstract

A 1km x 1/2 km grid geoelectrical resistivity survey using the Schlumberger (i.e. sounding) mode was conducted in the swath of land between the Staff Quarters and the temporary Administration/Hostel blocks stretching to just the edge of the new School of Engineering and Engineering Technology (S.E.E.T.) complex. The purpose of the survey was to primarily determine electrically the horizons or formations, of their thickness, including relative positions and depths under the surface. Sixty-six VES stations were occupied, and the data collected were reduced and subjected to n-layer model analysis by Zohdy technique. The results of this analysis are presented as curves of different resistivity versus depth. From the digitized curves, iso-resistivity maps at different depth, and geoelectric vertical section of each profile were obtained. The results show that VES points B2, C4, E2, G3, 14, j3, J6, K3, and KG are the points identified as suitable for drilling boreholes for the purpose of water exploitation