AN INVESTIGATION OF GROUNDWATER POTENTIAL OF SOUTHERN ANAMBRA STATE, NIGERIA USING ELECTRICAL RESISTIVITY SOUNDINGS

Authors

  • S. O. Okeke
  • A. A. Onwuegbuche
  • A. I. Chinwuko
  • K. O. Achhilike
  • C. C. Okonkwo
  • A. O. Usman

Keywords:

VES curve, Aquifer, Hydraulic conductivity, Transmissivity and Groundwater vulnerability

Abstract

An electrical resistivity sounding has been employed on investigation of groundwater potentials within the southern Anambra State, Nigeria.Fifty-two vertical electrical sounding data were obtained within the area using Schlumberger array. The resistivity data which were interpreted with the aid of IX1D Interpex software formed the basic data for calculating and modeling aquifer characteristics. The Atomic Absorption Spectrometer (AAS) machine was used to analyze the physico-chemical components of the fourteen groundwater samples collected around the area. The VES interpretations revealed that the forth to sixth layers are delineated as prospective aquifer units with depth range from 44.36 meters to 215.08 meters across the study area. The computed aquifer parameters from the interpreted VES data show 0.053 to 6.189 m/day hydraulic conductivity and 1.824 to 430.628m2/day transmissivity. The water analyses reveal that mostly all the parameters analyzed fall within the acceptable limit for drinking water. Three zones of groundwater productivity potential have been obtained in the area: high, intermediate and low, but the study area is predominately of intermediate transmissibility, meaning that the groundwater potentials can serve for local water supply. The groundwater flows within the area trend majorly in NE-SW direction. The groundwater vulnerability model reveals that the gap between the peaks of the watertable and the topography in the area is 140m, which implies that the vertical movement of any contaminant will be strongly retarded by the earth materials before reaching the aquifer. The study concludes that the aquifers within the study area are capable of yielding enough water that would serve for local water supply/scheme which is satisfactory for human consumption

Dimensions

Adeniji, A.E., Ajala, A., and Osho, J. K. (2017).Estimation of Groundwater Potential Using Surficial Resistivity Measurements: A Case Study from parts of Makurdi Benue State Nigeria. Global Journal of Pure and Applied Sciences, 23 (1): 311-320.

Amadi, S.C., Onwuemesi, A.G., Anakwuba, E.K., Chinwuko, A.I., and Okeke, H.C. (2017).Estimation of Aquifer Hydraulic Characteristics from Surface Geo-ElectricalSounding of AffaAnd Environs Southeastern, Nigeria. IOSR Journal of Applied Geology and Geophysics 5(4), 14-25.

Anakwuba, E,K., Okolo, C.M., Ahaneku, V.C., Chibuzor, S.N., Odika, N.F., and Chinwuko, A.I. (2021). Hydrogeophysical Evaluation of Parts of River Mamu Sub-Basin, Southeastern Nigeria.International Journal of Geology and Earth Sciences, 7(1): 1-8.

Anakwuba, E.K., Nwokeabia, C.N., Chinwuko, A.I., and Onyekwelu, C.U. (2014).Hydrogeophysical assess-ment of some parts of Anambra basin, Nigeria. International Journal of Advanced Geosciences, 2(2), 72-81.

Anizoba, D. C. Chukwuma, G. O., Chukwuma, E. C., &Chinwuko, E. C. (2015). Determination of Aquifer Characteristics from Geo-electrical Sounding data in partsofAnambra State, Nigeria. International Journal of Innovation and Applied Studies, 11 (4), 832-843.

Chinwuko, A.I., Anakwuba, E.K., Okeke, H.C., Onyekwelu, C.U., Usman, A.O., Osele, C.E., and Iheme, O.K. (2016).Assessment of Hydrogeo-physical and Geotechnical Properties in Central Part of Anambra State, Nigeria. International Journal of Geophysics and Geochemistry 3(2), 6-13.

Chinwuko, A.I., Anakwuba, E.K., Okeke, H.C., Usman, A.O., Ovwasa, M.O., Okoye, I. F. (2015).Geo-electric Investigation for Groundwater Potential in AwkaAnambra State, Nigeria. International Journal of Science for Global Sustainability l (1), 85-95.

Fatoba, J.O., Omolayo, S. D and Adigun, E. O. (2014). Using Geoelectric Soundings for Estimation of Hydraulic Characteristics of Aquifers in the Coastal Area of Lagos, Southwestern Nigeria. Int. Letters Natural Sci., 11: 30-39.

Gyan-Boakys, P. (1999). Water and sustainable develop-ment in Ghana. Water International, 24 (3), 189-195.

Heigold, P.C., Gilkeson, R.H., Cartwright, K., and Reed, P.C. (1979).Aquifer transmissivity from surficial electrical methods. Groundwater 17(4), 338-345.

Krasny, J. (1993). Classification of transmissivity magnitude and variation. Groundwater, 31 (2): 230-236.

Nigerian Standard for Drinking Water Quality. 2015. A Unit of Nigerian Industrial Standard (NIS)-Guidelines for drinking water uses, Abuja, Nigeria, 28p.

Niwas, S. and Singhal D.C. (1981). Aquifer transmissivity of porous media from Dar-Zarrouk parameters in porous media. Journal of Hydrology 82, 143-153.

Nwajide, C. S. (2013). Geology of Nigeria’s Sedimentary Basins. CSS Bookshop Limited, 347p.

Obiabunmo, O.C., Umego, M.N., Obiekezie, T.N., and Chinwuko, A.I. (2014).Application of Electrical Resistivity Method for Groundwater Exploration in Oba and Environs, Anambra State, Nigeria.Advances in Physics Theories and Applications, 37: 19-29.

Okoro, E. I., Egboka, B. C. E., &Onwuemesi, A. G. (2010). Evaluation of the aquifer characterics of Nanka Sands using hydrogeological method in combination with vertical electrical sounding (VES). Journal of Applied Sciences, 14(2):5-9.

Osele, C.E., Onwuemesi A.G., Anakwuba, E.K., and Chinwuko, A.I. (2016).Hydrogeophysical assess-ment of some parts of Anambra basin, Nigeria. International Journal of Advanced Geosciences, 4 (1): 1-7.

Telford, W. M., Geldart, L.P. and Sheriff, R. E. (1998).Applied Geophysics, 2nd ed. USA; Cambridge University Press.770p.

World Health Organization WHO (2008). Guidelines for drinking-water quality, vol.1 Recommendations,3rd ed. WHO Library Cataloguing-in-Publication Data.

Udoh, A ,Chınwuko, A, Onwuemesı, A , Anakwuba, E , Oyonga, A , and Usman, A. (2021). Impact of solid waste on groundwater quality in selected dumpsites in AkwaIbom State, Nigeria using resistivity and hydrochemical data. Bulletin of the Mineral Research and Exploration, 164 , 231-249.

Published

2021-11-30

How to Cite

Okeke, S. O., Onwuegbuche, A. A., Chinwuko, A. I., Achhilike, K. O., Okonkwo, C. C., & Usman, A. O. (2021). AN INVESTIGATION OF GROUNDWATER POTENTIAL OF SOUTHERN ANAMBRA STATE, NIGERIA USING ELECTRICAL RESISTIVITY SOUNDINGS. Nigerian Journal of Physics, 30(2), 1-11. https://njp.nipngr.org/index.php/njp/article/view/89

Issue

Vol. 30 No. 2 (2021): Nigerian Journal of Physics - Vol. 30 No. 2

Section

Articles
Copyright & Licensing

How to Cite

Okeke, S. O., Onwuegbuche, A. A., Chinwuko, A. I., Achhilike, K. O., Okonkwo, C. C., & Usman, A. O. (2021). AN INVESTIGATION OF GROUNDWATER POTENTIAL OF SOUTHERN ANAMBRA STATE, NIGERIA USING ELECTRICAL RESISTIVITY SOUNDINGS. Nigerian Journal of Physics, 30(2), 1-11. https://njp.nipngr.org/index.php/njp/article/view/89