PEMETAAN POTENSI AIR TANAH (GROUNDWATER) BERDASARKAN METODE VERTICAL ELECTRICAL RESISTIVITY (VES) DI DESA JABUNG, KABUPATEN MALANG

Jabung Village, located in Jabung District, Malang Regency, has a variety of groundwater potential. The study using the Vertical Electrical Sounding (VES) geoelectric method was carried out in several hamlets in Jabung Village which had water shortages to map the groundwater potential in these hamlets. VES measurements were carried out in Boro Lor Hamlet, Gunung Kunci Hamlet, Umpak Hamlet, and Mindi Hamlet, with 1 reference point measured next to a drilled well belonging to the Regional Government. The results of VES analysis in 4 hamlets show that the aquifer layer is a layer of sandstone with a resistivity of 25.8-41.7 m. The thickness of the aquifer varies from 4.6 meters to 30.1 meters. The depth of the aquifer also varies from a depth of 40.6 meters to a depth of 68.6 meters.Desa Jabung yang berada di Kecamatan Jabung, Kabupaten Malang memiliki potensi air tanah yang beragam. Penelitian menggunakan metode geolistrik Vertical Electrical Sounding (VES) dilakukan di beberapa dusun di Desa Jabung yang kesulitan air untuk memetakan potensi air tanah di dusun-dusun tersebut. Pengukuran VES dilakukan di Dusun Boro Lor, Dusun Gunung Kunci, Dusun Umpak, dan Dusun Mindi, dengan 1 titik referensi yang diukur di sebelah sumur bor milik Pemerintah Daerah. Hasil analisis VES di 4 dusun menunjukkan lapisan akuifer berupa lapisan batupasir dengan resistivitas 25,8-41,7 Ωm. Ketebalan akuifer beragam dari 4,6 meter hingga 30,1 meter. Kedalaman akuifer juga berbeda-beda dari kedalaman 40,6 meter hingga kedalaman 68,6 meter