GROUNDWATER INVESTIGATION OF LADIRIN ESTATE, ABEOKUTA, OGUN STATE USING VERTICAL ELECTRICAL SOUNDING (VES) RESISTIVITY METHOD

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Abstract

The study aims to investigate the groundwater potential in Ladirin Estate, Abeokuta, Ogun State, Nigeria, using Vertical Electrical Sounding (VES) resistivity methods. The research focuses on characterizing the subsurface layers, identifying aquifers, and determining the best locations for boreholes. Fifteen VES points were evaluated, and the resistivity data was analyzed using Winresist software. The results revealed five geoelectric layers: topsoil, sand/lateritic sand, dry sand, aquifer (sand), and deeper dry sand. The aquifer unit was identified at depths ranging from 76.4 m to 149.2 m. The findings suggest poor groundwater potential, with borehole drilling recommended between 100 m and 180 m.

Table of Contents

1. Introduction

- Background to the Study

- Statement of Problem

- Aim and Objectives

- Location of the Study Area

- Geology of Groundwater

- Occurrence of Groundwater

2. Literature Review

- Previous Work on Groundwater Potential Evaluation

- General Geology of Nigeria

- Geology of the Study Area

- Basic Theory of Electrical Resistivity Method

3. Materials and Methods

- Introduction

- Materials Used

- Method Deployed (Schlumberger Array)

- Data Acquisition

4. Results and Discussion

- Results of VES Curves (Resistivity, Thickness, and Depth)

- Geoelectric Sections for VES Stations

- Discussion of Results

5. Conclusion and Recommendation

- Summary of Findings

- Recommendations for Borehole Drilling

6. References

7. Appendices

- Winresist Results (VES Curves)

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GROUNDWATER INVESTIGATION OF LADIRIN ESTATE, ABEOKUTA, OGUN STATE USING VERTICAL ELECTRICAL SOUNDING (VES) RESISTIVITY METHOD

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