Pemetaan Pencemaran Air Asam Tambang Di Area Lahan Pertanian Desa Cokrokembang, Kabupaten Pacitan Menggunakan Integrasi Metode Electrical Resistivity Tomography (ERT) & Induced Polarization (IP)

Wing Artha, Bramudya (2026) Pemetaan Pencemaran Air Asam Tambang Di Area Lahan Pertanian Desa Cokrokembang, Kabupaten Pacitan Menggunakan Integrasi Metode Electrical Resistivity Tomography (ERT) & Induced Polarization (IP). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian berjudul “Pemetaan Pencemaran Air Asam Tambang di Area Lahan Pertanian Desa Cokrokembang, Kabupaten Pacitan Menggunakan Integrasi Metode Electrical Resistivity Tomography (ERT) & Induced Polarization (IP)” ini bertujuan untuk mengidentifikasi karakteristik dan sebaran nilai resistivitas dan chargeability dan memetakan persebaran zona yang diduga terkontaminasi air asam tambang di area lahan sawah di Desa Cokrokembang. Terdapat total 21 lintasan geolistrik dan data muka air tanah pada 30 sumur di area penelitian. Selain itu, dilakukan pengambilan 12 sampel tanah dan 6 sampel air tanah untuk dilakukan uji kandungan Cu yang digunakan sebagai dasar interpretasi. Hasil menunjukkan terdapat tiga zona lapisan, yaitu zona lapisan atas pada lintasan sawah, diinterpretasikan sebagai lapisan lempung basah yang tercemar dengan resistivitas ≤ 21.2 Ohm.m. Zona lapisan tengah dengan rentang resistivitas 28.7 - 38.9 Ohm.m dan rentang chargeability ≤ 8 ms yang diinterpretasikan sebagai zona akuifer air tanah yang diduga tercemar. Zona lapisan bawah dengan nilai resistivitas ≤ 21.2 Ohm.m dengan nilai chargeability > 8 yang diinterpretasikan sebagai lempung. Dengan demikian, berdasarkan penelitian ini, dapat disimpulkan bahwa lahan sawah masih tercemar limbah tambang dan air tanah berpotensi tercemar oleh air asam tambang.
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This study, titled “Mapping of Mine Acid Water Pollution in Agricultural Lands in Cokrokembang Village, Pacitan Regency, Using an Integrated Approach Combining Electrical Resistivity Tomography (ERT) and Induced Polarization (IP) Methods,” aims to identify the characteristics and distribution of resistivity and chargeability values and to map the distribution of zones suspected of being contaminated by mine acid water in the rice field area of Cokrokembang Village. A total of 21 geoelectric profiles and groundwater level data from 30 wells were collected in the study area. Additionally, 12 soil samples and 6 groundwater samples were collected for copper (Cu) content testing, which served as the basis for interpretation. The results indicate the presence of three stratigraphic zones: the upper zone in the rice field survey lines, interpreted as a wet clay layer contaminated with resistivity ≤ 21.2 Ω·m. The middle stratum, with a resistivity range of 28.7–38.9 Ω·m and a chargeability range of ≤ 8 ms, was interpreted as a groundwater aquifer zone suspected of being contaminated. The lower layer zone, with a resistivity value of ≤ 21.2 Ω·m and a chargeability value > 8, was interpreted as clay. Thus, based on this study, it can be concluded that the rice paddy land is still contaminated with mining waste and that the groundwater has the potential to be contaminated by acid mine drainage.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Air Asam Tambang, Air Tanah, Chargeability, Metode ERT & IP, Muka Air Tanah, Resistivitas, Sampel Air Tanah, dan Sampel Tanah ======================================================================================================================== Mine Acid Water, Groundwater, Chargeability, ERT & IP Methods, Groundwater Table, Resistivity, Groundwater Samples, and Soil Samples
Subjects:	Q Science > QC Physics S Agriculture > S Agriculture (General)
Divisions:	Faculty of Civil Engineering and Planning > Geophysics Engineering > 33201-(S1) Undergraduate Thesis
Depositing User:	Bramudya Wing Artha
Date Deposited:	27 Jul 2026 02:42
Last Modified:	27 Jul 2026 02:42
URI:	http://repository.its.ac.id/id/eprint/137774

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