European Journal of Biotechnology and Bioscience

European Journal of Biotechnology and Bioscience


European Journal of Biotechnology and Bioscience
European Journal of Biotechnology and Bioscience
Vol. 3, Issue 1 (2015)

Delineation of potential groundwater zones using geo-electrical sounding data at Awka in Anambra State, South-eastern Nigeria


Anizoba Daniel, Orakwe Louis, Chukwuma. Emmanuel, Nwoke Orji.

Sounding (VES) method was used to map Awka municipality. Sixteen VES were carried out across the area using the schlumberger electrode array configuration. The geoelectric sections obtained from the sounding curves revealed 4-layer and 5-layer earth models respectively.
2-D surface map of the anisotropic coefficient map layer, hydraulic conductivity map layer, isoresistivity map layer, and isothickness map layer were overlay to produce the final groundwater potential layer. Three potential groundwater zones were delineated; the high groundwater potential zone, the medium groundwater potential zone and the low groundwater potential zone. The final groundwater potential map revealed that the Northern parts of the study area are the most promising region for groundwater potential/borehole development, while the Western and Southern parts can also be considered as fair for groundwater potential/borehole development. The Eastern part of the study area has the lowest groundwater potential/borehole development. The various contour maps and final overlay for the potential groundwater zone mapping will serve as a useful guide for groundwater exploration in the study area.
Pages : 01-09