The mapping of the water bearing formations and evaluation of the groundwater potential in the western side of Sohag Govemorate are carried out in the present study. The study is made using combined electrical resistivity methods and the pumping tests. Forty vertical electrical soundings (VES) using Schlumberger configuration are made in the investigated area.
The study reveals the existence of the following geoelectrical layers in the area (from top to bottom): Wadi deposits, Dandara Formation, Kom Ombo Formation, and Qena Formation. These sediments are underlain by thick clay deposit belonging to the Pliocene (Munehia Formation). The study shows that, the Qena Formation is the main water bearing formation in the area. The saturated zone of the aquifer recorded resistivity values ranging between 80 and 120 ohm-meter, while the clay base attains values varying from 20 to 40 ohm-meter. The depth of water table in the area ranges between 20 and SO m, and the thickness of the saturated zone varying from SO to 130 m.