Identifikasi Potensi Air Tanah Menggunakan Metode Vertical Electrical Sounding Di Desa Mandala Dan Desa Badur, Kabupaten Sumenep

Natasha, Velyn Faudy (2021) Identifikasi Potensi Air Tanah Menggunakan Metode Vertical Electrical Sounding Di Desa Mandala Dan Desa Badur, Kabupaten Sumenep. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Desa Mandala dan Desa Badur termasuk dalam daftar 28 Desa di Kabupaten Sumenep yang mengalami kekeringan dan krisis air bersih pada akhir tahun 2020. Secara regional Kabupaten Sumenep tersusun atas beberapa formasi geologi, yang mana sebagian besar tersusun atas batuan gamping, dimana secara fisik merupakan daerah yang tandus dan kering. Oleh sebab itu diperlukan adanya identifikasi kedalaman akuifer dan potensi air tanah di desa tersebut, salah satu caranya dengan menggunakan metode Vertical Electrical Sounding konfigurasi Schlumberger. Untuk mendapatkan nilai resistivitas bawah permukaan daerah penelitian dilakukan pengukuran dan analisa data VES pada 10 titik pengukuran yang tersebar di kedua desa tersebut. Hasil interpretasi menunjukkan bahwa nilai resistivitas bawah permukaan Desa Mandala berentang 1,36 – 68,71 Ωm dan Desa Badur berentang 9,12 – 4194 Ωm. Kedalaman akuifer air tanah di Desa Mandala antara 2,224–63,08 meter dan Desa Badur antara 3,415-84,6 meter. Potensi akuifer air tanah di Desa Mandala ditemukan di titik 1, 2, 3, 4, 5 dengan batuan penyusun berupa gamping pasiran, lempung pasiran, dan napal pasiran. Sedangkan di Desa Badur ditemukan di titik 6, 7, 8, 9, 10 dengan batuan penyusun berupa gamping pasiran dan lempung pasiran. ====================================================================================================== Mandala Village and Badur Village are included in the list of 28 villages in Sumenep Regency that are experiencing drought and clean water crisis at the end of 2020. Regionally, Sumenep Regency is composed of several geological formations, most of which are composed of limestone, which is physically an area that is barren and dry. Therefore, it is necessary to identify the depth of the aquifer and groundwater potential in the village, one way is by using the Vertical Electrical Sounding method with the Shlumberger configuration. To obtain the subsurface resistivity value of the research area, measurements and analysis of VES data were carried out at 10 measurement points spread over the two villages. The interpretation results show that the subsurface resistivity values in Mandala Village range from 1,36 – 68,71 m and Badur Village ranges from 9,12 – 4194 m. The depth of the groundwater aquifer in Mandala Village is between 2,224–63,08 meters and Badur Village is between 3,415-84,6 meters. Potential groundwater aquifers in Mandala Village are found at points 1, 2, 3, 4, 5 with the constituent rocks in the form of limestone sand, clay sand, and marl sand. While in Badur Village, it was found at points 6, 7, 8, 9, 10 with the constituent rocks in the form of limestone sand and clay sand.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Groundwater, Aquifer, Resistivity, VES, Air Tanah, Akuifer, Resistivitas, VES.
Subjects: G Geography. Anthropology. Recreation > GB Physical geography > GB1003.2 Groundwater.
T Technology > TN Mining engineering. Metallurgy > TN269 Prospecting--Geophysical methods
Divisions: Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User: Velyn Faudy Natasha
Date Deposited: 04 Aug 2021 06:34
Last Modified: 04 Aug 2021 06:34
URI: https://repository.its.ac.id/id/eprint/84805

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