GEOELECTRICAL INVESTIGATION FOR GROUNDWATER POTENTIAL AT GOVERNMENT SECONDARY SCHOOL, KWAKUTI NIGER STATE, NIGERIA

Abstract

Vertical Electrical Sounding (VES), using Schlumberger array was carried out to investigate the subsurface layer parameters used to delineate groundwater potential of a 500 x 500 m area of land defined by latitude 9.416622 N to 9.421171 N and longitude 6.618314 E to 6.622833 E located at Government Secondary School, Kwakuti, Niger State. A total of 36 VES points at 100 m interval were sounded with a 100 m maximum half inter current electrode spacing (AB/2). Result revealed that the study area is underlain by three 0.6 to 3.8 m as its range of resistivity, depth and thicknesses respectively; the and thickness of 4.2 to 26.2 m was considered aquifer layer. The fresh basement has 919.4 pth and thickness. The observed curve types were 100% H. Five (5) VES stations C3, C4, D2, D5, and E4 were delineated as aquifer potentials of the study area, their resistivity, depth and thickness