The Evaluation of High Groundwater Potential Zone around the Central Mosque, University of Ibadan, Nigeria

Abstract

Resistivity survey was carried out to investigate points of high groundwater potential within the premises of the mosque and chapel of resurrection of the institution to provide additional supply of groundwater because the increase in demand for water has led to inadequacy in its supply. Geophysical investigation was carried out using geoelectrical imaging technique to determine high groundwater potential zones of the University of Ibadan. Three Constant Spacing Traverses (CST) and ten Vertical Electrical Sounding (VES) stations were carried out. The model for the earth layer interpretation was done using WINRESIST software. The purpose is to reduce the error to the accepted levels. The analysis showed that the Vertical Electrical soundings: VES 1, 2 and 8 are high groundwater potential zones. Their resistivity ranged from (46.6 − 262.5)Ωm, (36.6 − 629.65)Ωm and (27.7 − 349.7)Ωm at depths ranged between (1.0 − 4.0)m, (0.8 − 15.9)m and (1.0 − 7.6)m for vertical electrical sounding 1, 2 and 8 respectively. Their thickness ranged between (1.0 − 3.0)m, (0.8 − 11.6)m and (1.0 − 6.6) respectively.