Groundwater Prospecting Using Electrical Resistivity Profiles Over Jubilee Homes Parkland, Southwest, Nigeria

Urbanization is speedily catching on erstwhile fallow hinterland area of southwest Nigeria. Due to the various production companies springing up in the location adjoining area are experiencing influx of citizenry and accommodation and sustenance become a predominant challenge. Portable water is critical to the survival of man, hence the reason for this study. Electrical resistivity survey were carried out at Jubilee Homes Parkland, to delineate subsurface layers and determine the ground water potential, so as to make adequate provision of portable water supply for the settlements springing up within this area. The electrical resistivity method adopted for this study employed the use of ABEM SAS 1000 terrameter which worked on 16 vertical electrical sounding (VES) points within the area. A maximum distance of 550m current electrode (AB) spread was adopted for this purpose. The result shows the presence of four geoelectric layers with the resistivity of the first layer ranging from 25.54Ωm-619.45Ωm and thickness of 0.14-9.21m representing topsoil. The second geoelectric layer has a resistivity ranging from 20.94Ωm-706.82Ωm and thickness of 2.58-35.36m representing laterite, while the third geoelectric layer has a resistivity ranging from 12.29Ωm-598.93Ωm and thickness 3.33-58.06m representing sandy clay. Finally, the fourth geoelectric layer has a resistivity ranging from 12.10Ωm-1980.52Ωm and thickness of 11.4-45m representing sand. It can be concluded that the fourth layer is most prolific and attractive to be explored for groundwater. This thereby affords residents and potential settlers in the area a considerable confidence level in accessing sufficient groundwater for their various uses. Furthermore, construction purposes ongoing in the location could make use of this evaluation to satisfy their need of locating water for their operation