Aquifer characterization based on geoelectric survey data in Issele Uku, Delta State, Nigeria

Twelve vertical electric soundings (VES) were carried out using the Schlumberger configuration with a maximum current electrode separation of 350 m using Abem Terrameter SAS 1000 AB in Issele Uku, Delta State, Nigeria, to determine the aquifer characterization of the area. The field data were analyzed by curve matching and computer iteration, and hydraulic characteristics of the aquifer were determined using the Dar Zarrouk parameters. The transmissivity of the aquifer varied from Trmax = 208.32 m2/day to Trmin = 109.2 m2/day. The knowledge of aquifer transmissivity made it possible to demarcate the area with good groundwater potential for setting-up boreholes in Issele Ukwu. The results show that the aquifer was not protected because of poor longitudinal conductivity due to the absence of clay. The results of water analyses reveal that water obtained from the various locations was safe for drinking, and other domestic and industrial purposes compared with the World Health Organization Standard.