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Journal of Applied Sciences

Year: 2013 | Volume: 13 | Issue: 1 | Page No.: 119-125
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Authors

O. Anomohanran

Keywords

Research Article

Geophysical Investigation of Groundwater Potential in Ukelegbe, Nigeria

O. Anomohanran
The aim of this study was to assess the groundwater potential in Ukelegbe, Nigeria. This was carried out by evaluating the geoelectrical and hydrogeological characteristics of the aquifer in the area. The Vertical Electrical Sounding (VES) technique using the Schlumberger array configuration was applied to investigate the geoelectrical characteristics. The data obtained were interpreted first by partial curve matching and by computer iteration techniques. Results obtained were correlated with lithologic log from a borehole drilled to provide control for the geoelectrical interpretation. The hydrogeological properties of the aquifer layer were obtained through laboratory measurement of the borehole soil samples using a constant head permeameter. The result of interpretation indicates the presence of three to four geoelectric layers which are composed of sandy/loamy top soil, sand, clay and fine sand formations. The result also revealed the presence of confined aquifer located in layer four. The various geoelectrical interpretations and hydrogeological results depict that the best sites for locating wells or boreholes in Ukelegbe are VES stations 3, 4, 7, 8 and 9. The study has also revealed that an estimated one hundred and twenty five thousand dollars is required to provide potable water to sustain livelihood in the area. Policy which will compel drillers to stick to the depths recommended in this study is suggested.
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