INTRODUCTION
1.1 BACKGROUND OF THE STUDY AREA
The study is located in Obeagu, Awgu LGA of Enugu state. The major villages covered are Obeagu, Amoli-Owelli, Egwuachi, Awgunta and Mmaku. The study area is a rural area with no major industries present. The settlement pattern is dispersed. The occupations practiced by the indigenes in the study area include Quarrying, farming, fishing and transporting. The major means of transportation is by vehicles, bicycles and motorcycles.
Surface water has been the major source of water for both domestic and industrial water supply in the area, which is known to be prone to contamination. However, with the intention of introducing recent technological development to make groundwater to be the choice of water supply in the area, electrical resistivity survey was conducted to determine the depth of aquifer in the area.
Electrical resistivity method is one of the geophysical methods used in groundwater exploration. The subsurface information inferred from this survey gives a better knowledge of the aquifer systems and a more realistic picture of groundwater potential of any area. The technique has been successfully used in investigating groundwater potential in different geological settings. Also this method was used to explore for groundwater in a sedimentary environment (Emenike, 2000). In this study, vertical electrical sounding was used to establish the occurrence and depth of groundwater within the part of Obeagu area in the Anambra Basin.
Although some work might have been done in the area in the past, the records were not well documented. This work will help to facilitate further studies on the geology of the area.
1.2 LOCATION AND ACCESSIBILITY
The study area is located in Obeagu and environs which lies within 007° 23? E and 007° 27? E and latitude 06° 7? N and 06° 11? N. The study area has an area extent of about 44.6 km2
. The area of study encompasses Obeagu, Amoli-Owelli, Egwuachi, Awgunta and Mmaku in Awgu Local Government Area in Enugu State. It is accessible through Enugu-Port Harcourt expressway by Akinaukwa junction or through the Oji-Agwu express way.Fig 1.1: Accessibility map of Obeagu
1.3 AIM AND OBJECTIVES
The aims and objectives of this research work include: