An Assessment of Groundwater Potential of Parts of Ikono LGA (Akwa-Ibom State), S.E. Nigeria
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Date
2003
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Nigerian Association of Hydrogeologists
Abstract
The groundwater potential of an area of 1406 Km2 within the Benin formation-southeastern Nigeria has been assessed based on data from six boreholes sunk at various locations within the Ikono Local Government Area of Akwa-Ibom State, Nigeria. The Benin formation is composed of loosely consolidated sands and gravels with minor intercalations of shale. The sands are poorly sorted, sub-rounded to rounded, medium to coarse grained and often pebbly. The characteristics of the borehole determined include: lithologic log, yield, drawdown, hydraulic conductivity and transmissivity. The yield ranges between 472.32-1918.4 m3/day while the transmissivity ranges between 106.08-700.84 m2/day. The findings indicate the area to have moderate to high groundwater potentials. The borehole production could have been better if the borehole drilling had been preceded by thorough geophysical studies to pick more favourable locations.