Geoelectric Evaluation of Groundwater Potential: a Case Study of Alagbaka Primary School, Akure, Southwest Nigeria

Vertical electrical sounding consisting of three Wenner array and thirteen schlumberger array has been carried out at the premises of Alagbaka primary school, Ahure Southwest Nigeria. The aquiferous unit in the area is composed of weathered and fractured rocks whose resistivity ranges from 26 to 366 Ωm and thickness of 2 4 to 29 3 m. The isopach shows that the overburden thickens towards the east and is thinnest towards the south. The geological map derived from the coefficient of anisotropy of the underlying rocks shows this the Eastern end undelain by migmatities have coefficient of anisotropy ranging between 1 5 and 2 5 while the southwest, west and northwest side is underlain by chanockites of high (3 - 7 4) coefficient of anisotropy. The eartern end offers a good prospect for groundwater exploration.