A total of 5 vertical electrical sounding stations were established within the site along 5 traverses. The method allows a quantitative result to be obtained by using a controlled source of specific dimensions. Among the various geophysical methods of groundwater investigation, the Electrical Resistivity Method has the widest adoption in groundwater exploration (Olorunfemi, 1999; Ariyo, 2007; and Afolayan et al., 2004). We shall mention below only the most commonly used geophysical methods for groundwater exploration. ELECTRICAL RESISTIVITY METHOD FOR GROUNDWATER INVESTIGATION Electrical resistivity methods of geophysical prospecting are well established and the most important method for groundwater investigations. Abstract: A new simple and quick geophysical method for groundwater exploration in the crystalline rocks of Tudun Wada Kano State, Nigeria has been developed. Efficacy of Geophysical Techniques for Groundwater Exploration in the Volta Basin, Northern Region of Ghana* 1A. A geophysical evaluation using Electrical Resistivity method for groundwater exploration at the study area was carried out which involved the utilization of Vertical Electrical Sounding (VES) technique occurrence of groundwater will greatly reduce the resistivity of all rocks and sedimentary materials through electrolytic conduction. Studies have showed that groundwater could be explored using electrical resistivity methods (Olorunfemi and Fasoyi, 1993; Olasehinde, 1999; Alile et al., 2008). These methods have been originally developed for petroleum and mineral exploration. Definition and Units of Resistivity Ground Water Hydrology by Dr. V.R. i. Introduction topography and frac Geophysical methods are rapid, non-destructive, re- Keywords: self -potential, 2 D resistivity, surface water, groundwater 1. 2. 32. These are the resistivity method and the seismic reflection and refraction method. Electrical resistivity methods The resistivity method is used in the study of horizontal and vertical discontinuities in the electrical properties of the ground. Most of these Electrical resistivity tomography (ERT) is a popular geophysical subsurface-imaging technique and widely applied to mineral prospecting, hydrological exploration, environmental investigation and civil engineering, as well as archaeological mapping. A number of different electrode configurations can be employed for electrical surveys, including: Vertical Electric Soundings (VES) for grounding studies (ASTM G57, IEEE-81); 2-D and 3-D Electrical Resistivity Tomography (ERT) The application of surface resistivity method however, can provide useful method for intermediate electrical resistivity values, the third layer is made up of clay (aquiclude) with relatively low electrical resistivity values and the fourth layer consists of limestone with relatively high electrical resistivity values. Although several methods are available for the purpose, two methods viz., the electrical resistivity and seismic refraction methods have been successfully used for groundwater investigation. A geophysical evaluation using Electrical Resistivity method for groundwater exploration at the study area was carried out which involved the utilization of Vertical Electrical Electrical resistivity methods are frequently used as investigation tool in groundwater exploration to obtain, details about the location, depth and apparent resistivity of the subsurface layers. work basically embodied the application of electrical resistivity method in prospecting for groundwater at Oba and its environs. Each of these methods can be used for a wide range of applications. Geophysical methods have been used for many years to assist in hydrogeological exploration for ground water. 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