Abstract
Eighteen Vertical Electrical Sounding (VES) were carried out to evaluate groundwater potential and aquifer protective capacity of the overburden units in Gude and environs. The Schlumberger configuration with maximum current electrode of 100 m was used and H type curve accounted for 94.4%. Geo-electro stratigraphic sections revealed that the geologic sequence beneath the area is composed of topsoil and highly Weathered/Fracture basement. The first layer is topsoil and has resistivity values between 15 Ωm to 462 Ωm with thickness ranging from 0.82 m to 4.78 m. The second layer which is referred to as weathered/fractured has resistivity values between 23 Ωm to 119 Ωm and thickness value ranging from 15 m to 43 m. The third layer representing a weathered basement and has an average resistivity value of 316.10 Ωm. The Dar-Zarrouk parameter in Gude area showed that the transvers resistance varies from 140.83 to 4763.02 Ohm-m2 with average value of 1422.32 Ohm-m2. While the Hydraulic conductivity values determined from geoelectrical technique range from 7.028 to 48.554 m/day with average value of 17.145 m/day.
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