Eksplorasi Sumber Air Tanah dengan Metode Vertical Electrical Sounding (VES) di Kabupaten Madiun

Sidiq, Prayoga Fajar (2024) Eksplorasi Sumber Air Tanah dengan Metode Vertical Electrical Sounding (VES) di Kabupaten Madiun. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Air tanah merupakan sumber daya alam yang sangat penting bagi kehidupan warga yang sering dimanfaatkan untuk kebutuhan sehari-hari. Namun, beberapa daerah sempat mengalami kesulitan air bersih salah satunya Kabupaten Madiun. Untuk mengatasi kekeringan diperlukan ekplorasi air tanah pada daerah yang dilanda kekeringan. Penelitian ini bertujuan untuk mencari potensi sumber air tanah di Kabupaten Madiun dengan metode Vertical Electrical Sounding (VES) menggunakan konfigurasi Schlumberger. Pengukuran dilakukan di Desa Dawuhan, Desa Kuwu, Desa Tapelan, Desa Ngetrep, dan Desa Segulung. Tiap desa dilakukan pengukuran geolistrik sebanyak 2 titik. Data VES pengukuran diolah dengan menggunakan software IPI2win untuk mendapatkan nilai resistivitas asli bawah permukaan. Selanjutnya, nilai resistivitas ini digunakan untuk menunjukkan potensi reservoir air tanah. Hasil interpretasi data didapatkan dugaan potensi air tanah pada titik Dawuhan 1 pada kedalaman 10.13-18.17 m berupa lapisan pasir tufan, Ngetrep 1 pada kedalaman 1.8-4.8 m dan 22.6 – 46.3 m beserta Ngetrep 2 pada kedalaman 1.3 – 5.3 m dan 14.3 – 41.3 m merupakan lapisan pasir lempungan, Segulung 1 pada kedalaman 5.06 – 12.4 m dan 37.6 – 99.6 m secara berurutan ialah lapisan pasir breksi dan pasir tufan, Segulung 2 pada kedalaman 33.1 – 50.1 m merupakan pasir breksi, dan Tapelan 2 pada kedalaman 23.1 – 45.1 m diduga lapisan pasir lempungan
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Groundwater is a natural resource that is very important for people's lives which is often used for daily needs. However, some areas have experienced difficulties in clean water, one of which is Madiun Regency. To overcome drought, groundwater exploration is needed in areas affected by drought. This study aims to find the potential for groundwater sources in Madiun Regency using the Vertical Electrical Sounding (VES) method using the Schlumberger configuration. Measurements were carried out in Dawuhan Village, Kuwu Village, Tapelan Village, Ngetrep Village, and Segulung Village. Each village was measured geoelectrically at 2 points. VES measurement data was processed using IPI2win software to obtain the original subsurface resistivity value. Furthermore, this resistivity value is used to indicate the potential of groundwater reservoirs. The results of the data interpretation showed that the groundwater potential at the Dawuhan 1 point at a depth of 10.13-18.17 m was in the form of a tuff sand layer, Ngetrep 1 at a depth of 1.8-4.8 m and 22.6 – 46.3 m along with Ngetrep 2 at a depth of 1.3 – 5.3 m and 14.3 – 41.3 m was a layer of clay sand, Segulung 1 at a depth of 5.06 – 12.4 m and 37.6 – 99.6 m respectively are layers of breccia sand and tuffaceous sand, Segulung 2 at a depth of 33.1 – 50.1 m is breccia sand, and Tapelan 2 at a depth of 23.1 – 45.1 m is thought to be a layer of clay sand

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Akuifer, Konfigurasi Schlumberger, Madiun, Resistivitas, VES. Aquifer, Schlumberger array, Madiun, Resistivity, VES.
Subjects:	G Geography. Anthropology. Recreation > GB Physical geography > GB1003.2 Groundwater. G Geography. Anthropology. Recreation > GB Physical geography > GB1197.7 Groundwater flow. Reservoirs Q Science Q Science > QC Physics Q Science > QC Physics > QC610.3 Electric conductivity Q Science > QE Geology Q Science > QE Geology > QE601 Geology, Structural
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Prayoga Fajar Sidiq
Date Deposited:	13 Aug 2024 01:22
Last Modified:	29 Aug 2024 04:04
URI:	http://repository.its.ac.id/id/eprint/114460

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