Evaluation of groundwater resources within Ankpa and environ, north central Nigeria

  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract

    Geophysical and Geochemical assessment of groundwater in part of Northern Anambra Basin has been evaluated. The groundwater potentials, aquifer characteristics and groundwater quality within the study area have been delineated. This is aimed is at establishing the depth to watertable and potability of the groundwater within the area. Twenty-(20) vertical electrical soundings (VES) were acquired with a maximum half current electrode spacing of 150 metres using ABEM 4000 SAS Tetrameter. Hydrogeochemical analysis was carried out using HANA Model Hi 83200 multi parameter ion specific meter to evaluate the basic anions and cations in the water samples. Piper, Durov and Schoeller semi-logarithmic plots were drawn to characterize the water types. Results from the geo-electric sections revealed the presence of five to seven geo-electric layers. The depth to water table ranges between 20m and 161.1m. The depth to Watertable is deepest around Ogene area with depth of 161.1m. The result of the geophysical analysis correlates with the borehole data acquired from the study area. Results from hydrogeochemical studies revealed that the concentrations of ions are in the order of Ca2+> Na2+>K+>Mg2+ and HCO3->NO3->SO42->Cl- in Anyigba area, Na2+>K+> Ca2+>Mg2 and Cl- >HCO3->NO3->SO42- Ankpa area while in Ejule area Mg2+>Na2+>K+> Ca2+and Cl- >HCO3->NO3->SO42-. These fall within the WHO (2006) drinking water standard. It is recommended that an average depth of 75m should be drilled for borehole within the northern part of the studied area and a depth of about 100m in the southern part of the study area. In addition, the water is recommended for domestic use.



  • Keywords

    Groundwater Potentials; Water Types; Aquifer Characterization; Piper Diagram and Potability.

  • References

      [1] Akakuru, O.C., Akudinobi, B.E.B., and Aniwetalu, E.U (2015) Qualitative evaluation and hydrogeochemical attributes of groundwater in Owerri Capital Territory, Southeastern Nigeria, IOSR journal of Applied Geology and Geophysics, 3(2). www.iosrjournals.org. 12- 18

      [2] Akpabio, I., and Ekpo, E., 2008. “Geoelectric Investigation for Groundwater Development of Southern Part of Nigeria”. Pacific Journal of Science and Technology. vol. 9, no.1, pp. 219-226.

      [3] Alile M.O, Jegede S.I, and Ehigiator O.M., 2008. Underground water exploration using electrical resistivity method in Edo State, Nigeria, Asian J. Earth Sci., vol. 1, no. 1, pp38-42. https://doi.org/10.3923/ajes.2008.38.42.

      [4] Hem, J.D. (1985). Study and Interpretation of the chemical characteristics of Natural Water: US Geological Survey Water-supply paper 2254/p263.

      [5] Kogbe, C.A., (1989). The Cretaceous and Paleogene Sediments of Southern Nigeria. Geology of Nigeria 2nd Edition. Rock View (Nig) Ltd, pp. 325-334.

      [6] Obaje, N. G. (2009). Geology and mineral resources of Nigeria. 1st edition Springer Books, Heidelberg. pp 60-62. https://doi.org/10.1007/978-3-540-92685-6.

      [7] Offodile M. E. (2002). Groundwater study and development in Nigeria. 2nd edition. Published by Mecon geology and engineering services L.t.d. 452p.

      [8] Okoro, E.I., Egboka, B.C.E. and Onwuemesi, A.G., 2010. Evaluation of the aquifer characteristic of Nanka Sands using hydrogeological method in combination with Vertical Electrical Sounding (VES). J. Appl. Sci. Environ. Mgt. vol. 14, no. 2, pp 5-9 https://doi.org/10.4314/jasem.v14i2.57822.

      [9] Onu, N.N. and Ibezim, C.U. 2004. Hydrogeophysical investigation of Southern Anambra Basin Nigeria. African Journals on-line. https://doi.org/10.4314/gjgs.v2i2.18699.

      [10] Onwuemesi, A.G., and B.C.E., Egboka, 2006. 2-D Polynomial curve fitting techniques on watertable, and hydraulic gradients estimations in parts of Anambra Basin, Southeastern Nigeria,Natural and Applied Sci. J., vol. 7, no. 1&2, pp 6-13.

      [11] Omali, A.O. (2014) Hydrogeophysical Investigation for Groundwater in Lokoja Metropolis, Kogi State, Central Nigeria. Journal of Geography and Geology; Vol. 6, No. 1; pp 81-95 https://doi.org/10.5539/jgg.v6n1p81.

      [12] Omali, A.O., Usman, A.O and Oguche, I.I. (2018). Hydrogeophysical Evaluation of Groundwater Resources within some parts of Northern Anambra Basin, Nigeria. Journal of Earth Sciences and Geotechnical Engineering, vol. 8, no. 4, 2018, pp17-33.

      [13] Piper, A.M., (1953). A graphical procedure in the Geochemical Interpretation of water Analysis. United State Geological Survey Bulletin 45, pp. 75-79.

      [14] Nigeria Standard for drinking water quality; ICS Nigeria Industrial Standard NIS 554:2005.

      [15] Thomson, N., (1996). Combating Groundwater contamination from runoffs in urban areas, Groundwater notes, vol.9, no.1, p. 6, Waterloo Centre for Groundwater Research, University of Waterloo.

      [16] Umeji, P. O. (2005). Palynological study of the Okaba coal section in the Anambra Basin, Southern Nigeria, Journal of Mining and Geol. 41(2), pp. 194.

      [17] WHO (2006)? http://www.who.int/watersanitationhealth/dwq/gdwq0506.pdf.




Article ID: 13677
DOI: 10.14419/ijag.v8i1.13677

Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.