Study of Aquifer Distribution Based on Rock Resistivity Data in Warureja Village and Surroundings, Warureja District, Tegal, Central Java

Abstract

The need for clean water in the dry season is often higher because many people would experience drought. The drought occurred in a Central Java area, Tegal, precisely at Warureja Village and its surroundings. The purposes are to determine the aquifer distribution and to provide recommendations for well drilling points. The study used the geo-electricity method of the Schlumberger configuration and field surface observation. Moreover, it used rock resistivity analysis to see how the subsurface conditions are. The relief in this area is wavy with denudational landforms, and the lithology is the alluvium unit, which was resulting from sedimentary deposits. The groundwater flows from south to north, following the morphology. The subsurface conditions consisted of two layers, the clay as the aquiclude and the sand as the aquifer. There are three recommended well drilling points. They are P-1 in Banjar Agung Village with a confined aquifer at a depth of 60 m, P-2 in Warureja Village at a depth of 20 m, and P-3 in Kreman Village with a depth of 18 m. In conclusion, all reserve points, static and dynamic, are sufficient.