Abstract

Groundwater is the water found underground in the cracks and spaces of rock materials called Aquifer. The primary source of ground water is rain and snow that falls into the ground. In order to determine the layers and depth of aquifer, electrical resistivity method was used to investigate the availability of groundwater in the community. The instrument used in this survey is ABEM SAS 300 Terrameter, cables, hammer, electrode and measuring tape. The result of the survey showed that the depth of the aq.uifer at two different locations in the community varies significantly, the aquifer depth ranges from 30 m to 60 m. It was noted that the thickness of the different layers in the area varied also with location one (1) having an average thickness of 14.32 m and location two (2) with an average thickness of 10.00 m. Both locations have five layers with the highest resistivity values of 296.10 Ωm and 248.60 Ωm respectively. The result shows that, the depth of the aquifer in location 2 which is very close to oil spill site is shallow compared to that of location 1 which is a far more distance to location 2, therefore the groundwater in the second location will be contaminated overtime.

Highlights

  • Water as one of the most important natural resources occurs both as surface water and groundwater

  • The result of the electrical resistivity investigation of Bodo community using vertical electrical sounding survey shows that the study area is characterized by shallow aquifer ranging from depth of 30 m to about 60 m

  • The zone of high resistivity indicates the presence of aquifer that is zone of resistivity value of 296.10 Ωm in model one and 248.60 Ωm in model two

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Summary

Introduction

Water as one of the most important natural resources occurs both as surface water and groundwater. It is vital for all life on the earth. Developments of our society are dependent on the availability and use of adequate water. This precious resource is sometimes scarce, sometimes abundant but unevenly distributed, both in space and time. The origin of groundwater is the water cycle as precipitation is followed by percolation and surface runoffs which recharge acquifers beneath the surface. Ground water may be recharged natural surface water bodies and artificial sources due to action of man

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