Investigasi Akuifer Air Tanah di Sekitar Lahan Pertanian Desa Kedungwuluh, Kecamatan Kalimanah, Kabupaten Purbalingga, Jawa Tengah Berdasarkan Survei Geolistrik Resistivitas dengan Konfigurasi Wenner

Abstract

Exploration to groundwater sources has been done at Kedungwuluh,
District of Kalimanah, Regent of Purbalingga Central Java using Geoelectric
Resistivity method with Wenner configurations. This research done at around of
agriculture land in Kedungwuluh. The objective of this research is interpret to
depth and properties of groundwater aquifer based on resistivity data of Wenner
configurations. The lenght of measurement trajectory in this research area are
300 meters, that outstretched from coordinate of 07° 23′ 46.5″ S and 109° 18′
42,9″ E up to 07° 23′ 56″ S and 109° 18′ 42,9″ E. The results that obtained from
this research is two dimensionly (2D) resistivity profile of sub surface rocks,
which contains of some layers or section of rocks, i.e: sandy claystone (< 53,35
m), clayey sandstone (53,35 up to 75,35 m), smooth sandstone (75,35 up to
249,00 m), and compacted sandstone and gravel (>249,00 m). Based on the
results of the interpretation, estimated that rock section which most dominant as
groundwater aquifer is smooth sandstone, and then clayey sandstone, then
sandy claystone. While compacted sandstone and gravel is not estimated as
aquifer.