Hydrogeophysical Delineation Of Prolific Groundwater Aquifer Around S tudents’ Hostels In Fupre Campus, Nigeria

Alaminiokuma G.I. () and Omigie J.i
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Alaminiokuma G.I.: Department of Earth Sciences, Federal University of Petroleum Resources Effurun, P.M.B. 1221, Effurun, Nigeria
Omigie J.i: Department of Earth Sciences, Federal University of Petroleum Resources Effurun, P.M.B. 1221, Effurun, Nigeria

Geological Behavior (GBR), 2020, vol. 4, issue 2, 68-72

Abstract: Electrical resistivity survey was conducted around Students’ Hostels in FUPRE to delineate prolific aquifer for potable water to serve the teeming population of staff and students. Five vertical electrical soundings (VES) using Schlumberger electrode configuration with a maximum current electrode spread of 300m were employed for data acquisition. WINRESIST software was employed to execute the iteration and inversion processes of computing resistivities, depths and thicknesses of the various layers and the curve types. Results indicate that the area is characterized by 4 distinct geoelectric layers inferred differently at the VES locations. Two potential groundwater aquifer zones are delineated. The unconfined shallow aquifer zones found at VES 1, 3, 4 and 5 locations have shallow overburden depth ranging between 3.7-19.3m and coarse-grained sand columns with thicknesses ranging between 2.8-17.7m while the confined deep aquifer zone found at VES 2 location coincides with deep overburden layer at a depth of 42.6m and coarse-grained sand column with appreciable thickness of 19.1m. These results suggest that boreholes for sustainable groundwater supply around the Students’ Hostels should be sited at VES 2 location and screened at a depth ≥40.0m. However, aquifers at VES 1, 3, 4 and 5 have potentials for groundwater but are vulnerable to contamination. It is recommenced that electrical resistivity and hydrogeological surveys should be conducted at different locations in FUPRE, before any borehole(s) are drilled, to delineate the appropriate aquifer for potable groundwater supply and to avoid possible contamination.

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Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:zib:zbngbr:v:4:y:2020:i:2:p:68-72

DOI: 10.26480/gbr.02.2020.68.72

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