Evaluation of Groundwater Potential Using Integrated Geophysical Data in Parts of Michael Okpara University of Agriculture, Umudike, Southern Nigeria
C. Amos-Uhegbu *
Department of Physics (Geophysics), College of Physical and Applied Sciences, Michael Okpara University of Agriculture, Umudike, P.M.B. 7267 Umuahia, Abia-State, Nigeria
M. U. Igboekwe
Department of Physics (Geophysics), College of Physical and Applied Sciences, Michael Okpara University of Agriculture, Umudike, P.M.B. 7267 Umuahia, Abia-State, Nigeria
K. T. Eke
Department of Physics and Electronics, Abia State Polytechnic, Aba, P.M.B. 7166 Aba, Abia-State, Nigeria
U. K. Eme
Department of Physics (Geophysics), College of Physical and Applied Sciences, Michael Okpara University of Agriculture, Umudike, P.M.B. 7267 Umuahia, Abia-State, Nigeria
*Author to whom correspondence should be addressed.
Abstract
This study was carried out to investigate the groundwater potential in Michael Okpara University of Agriculture, Umudike area of Abia State, Nigeria. A total of nine vertical electrical soundings were acquired and the results were correlated with records available from an existing well together with previous lithologic deductions. A range of 4 to 6 geoelectric layers was delineated in this study; though the fourth and fifth geoelectric layers were predominant. Results showed that the aquifer is located within the third layers for the 4-layered zone and the fifth and sixth layers for the other layered zones. The depth to the shallowest aquifer is about 30m at VES 4 with the aquifer resistivity of 13124Ωm and transmissivity of 258.6 m2/d. The area has huge groundwater potentials with the best prospects at VES 2 and less promising results at VES 5.
Keywords: Groundwater potential, lithologic deductions, transmissivity, vertical electrical sounding