Comparability of Aquifer Transmissivity between Abavo (Hinterland) and Okwagbe (Coastal Region), Delta State, Nigeria.

A geoelectric survey involving twenty-seven vertical electrical soundings was carried at Abavo and Okwagbe both in Delta State, Nigeria in order to determine the groundwater potential and to compute and compare the transmissivity of aquifer in the two communities. The Schlumberger electrode configuration was adopted with a maximum current separation of 800m. A total of 27 VES were carried out, 12 from Abavo and 15 from Okwagbe locations. The result was interpreted quantitatively and quantitatively in terms of a lithologic and geohydrologic model of the subsurface. The geoelectric investigation reveals that three to seven were obtained within the two communities. The results show an average aquifer transmissivity of 196m2/day for Abavo while 295m2/day for Okwagbe was computed which are good for sedimentary region. Locations 9 and 2 at Abavo have aquifer transmissivity of 548m2/day and 418m2/day respectively while locations 2, 10and 13 have 541m2/day,519m2/day and 504m2/day respectively for Okwagbe. These five locations of the studied area have been demarcated as having good groundwater potentials in the two communities. There exist no difference in terms of aquifer transmissivity between the coastal region and the hinterland.