Determination of groundwater potential in Pulutan Wetan Village Wuryantoro District Wonogiri using vertical electrical sounding method

Abstract

The Pulutan Village is in the karst area consisting mostly of limestone so that during the dry season will cause drought. Drought caused by water is located below the surface so it is difficult to take and known location, it is necessary to investigate the presence of aquifer. The study aims to find out the structures beneath the surface, the depth of the aquifer, and to get cross-section results in 3-dimensional form. The method used in this research is the method of geoelectric resistivity with Schlumberger configuration using the 3 points sounding. The results of the study were obtained that aquifer is located on a coating of tuff sandstone with a resistivity between 2.40 Ωm to 4.15 Ωm. The second Sounding point, it is known that there is a large prospect of groundwater visible from the thickness of the aquifer layer.