Geoelectric evaluation of groundwater potential: a case study at Omuma local government area, Rivers State, Nigeria
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ORIGINAL PAPER-EXPLORATION GEOPHYSICS
Geoelectric evaluation of groundwater potential: a case study at Omuma local government area, Rivers State, Nigeria M. E. Abbey1 · D. E. Onyebueke1 Received: 13 July 2020 / Accepted: 3 September 2020 / Published online: 17 September 2020 © The Author(s) 2020
Abstract Rivers State as the nomenclature depicts is a state richly blessed with both surface and subsurface water. As a result of this, there is less problem of water scarcity, especially in the elite cities of the state, but so many other communities due to one reason or the other still wallow in abject water scarcity. In this survey, a total of seven (7) vertical electric soundings were carried out using Schlumberger configuration at Obibi community in Omuma local government area, Rivers State, to ascertain the location and depths to aquifer. ABEM terrameter SAS 300 was used in the survey with electrode spacing AB/2 of 150 m, thus probing to a depth of about 200 m. Geoelectric software (IPI2WIN) was utilized in the plotting, iteration and interpretation of the resistivity data obtained. From the quantitative interpretation and the lithology of the areas, five different subsurface layers were delineated with their geoelectric curve given as AK, AKQ and AKH. Aquifer in these areas is highly prolific and mostly located at an average depth of 52 m. Keywords VES · Geoelectric · Aquifer · Lithology · Unconsolidated
Introduction Health they say is wealth according to one of the aged long adages. One out of the many ways of maintaining this good health is by keeping a very good hygienic approach to our daily consumptions, especially our drinking water. A potable drinking water is very essential to human life and its scarcity can be catastrophic to human existence. Scarcity or contamination of potable drinking water can lead to serious public health challenges such as outbreak of epidemics. It was for this reason that the United Nations at the World Summit on Sustainable Development held at Johannesburg 2002 called for proportion of people without clean water and proper sanitation to be halved by the 2015 as one of the Millennium Development Goals “MDGs” (United Nations 2002). The problem of obtaining adequate supply of quality water even in tropical region is increasingly becoming more * M. E. Abbey [email protected] D. E. Onyebueke [email protected] 1
Department of Physics, Mathematics and Chemistry, School of Applied Sciences, Federal Polytechnic of Oil and Gas, Bonny, Rivers State, Nigeria
acute due to ever increasing urbanization, industrialization and coastline which bounded some of the communities. The recent studies show that over half the world population depends on groundwater as main source of water supply. According to Mato (2002), about 30% of the public water supplies are derived from groundwater, in the USA, it is about 50%, while it is about 99% in Denmark. According to NPC (2004), the south–south region had about the worst water situation in the country in spite of its abundant wat
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