Journal of Multidisciplinary Engineering Science and Technology (JMEST) ISSN: 2458-9403 Vol. 4 Issue 5, May - 2017 Geo-Electric Evaluation Of Aquifer Protective Capacity And Groundwater Flow Pattern In Ogbia Local Government Of Bayelsa State, Nigeria Oborie, E and Oki, O. A Department of Geology, Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria. Corresponding Author:
[email protected], +2348061363420 Abstract—The groundwater flow pattern and water levels to areas where water levels are low; that aquifer protective capacity of overburden layers in is from below high ground, which are recharge areas, some communities of Ogbia in Bayelsa State was to groundwater discharge points in valleys or the sea. investigated to determine the vulnerability of The direction of flow is indicated by the slope of the groundwater resources due to infiltration and/or water table which is called the hydraulic gradient migration of potential contaminants. These [5].When groundwater is pumped from a borehole, the communities plays host to crude oil exploitation water level is lowered in the surrounding area. A activities, as such, environmental degradation hydraulic gradient is created in the aquifer which associated with these activities are commonplace. allows water to flow towards the borehole. The Spills, leachate plumes from dumpsite and waste difference between the original water level and the from septic tanks may contaminate the aquifers pumping level is the drawdown, which is equivalent to indiscriminately. Dar Zarrouk parameters obtained the head of water necessary to produce a flow from the geoelectric sounding was used to through the aquifer to the borehole. The surface of the evaluate the protective capacity of the soil, while pumping level is in the form of an inverted cone and is the groundwater flow pattern was determined by referred to as a cone of depression.