keywords: Groundwater, Pumping test, Well logging, Storage coefficient, Aquifer, Transmissivity
Delta state university (DELSU), Abraka has witnessed increase in both human as well as infrastructural development recently, due to the return of all her students from Anwai campus, Asaba, which became a full-fledged Dennis Osadebey university, Asaba. This development has impacted on groundwater availability in the university. This study seeks to evaluate the hydraulic parameters of the aquifer in Site 3, Delta State University (DELSU), Abraka, Western Niger Delta, Nigeria. The method applied, was a combination of pumping test and well logging. Two boreholes, at 40 m distance apart, were drilled to evaluate the aquifer hydraulic parameters in the area. The well logs were analyzed while the pumping test data were evaluated using the Cooper – Jacob’s analytic method. The result of the lithological study revealed a subsurface formation that comprised lateritic topsoil/sand, fine clayey sand, medium sand, medium to coarse sand, and coarse/very coarse sand. The results obtained from the computation of the aquifer hydraulic parameters revealed that that the aquifer’s transmissivity, storage coefficient (storativity), specific capacity and hydraulic conductivity are 281 m2/day, 0.00014, 1.07 m2/min, 9.63 m/day and 2.41 m2/day, 0.000012, 0.91m2/min 8.25 m/day for wells 1 and 2 respectively. The analysis of the well logs shows that the aquifer would yield quality water for the community. These results indicate that the aquifer is confined and is capable of yielding a significant and adequate quantity of groundwater, as well as the best source of groundwater for the university community, for domestic and other purposes.