ERT geoelectric application to determine the leakage direction of Embung Batur Agung, Karangwetan, Karangmojo District, Gunungkidul Regency, Indonesia

Zakaria, Muhammad Faizal and Kusumayudha, Sari Bahagiarti and Hamid, Hanafiah (2023) ERT geoelectric application to determine the leakage direction of Embung Batur Agung, Karangwetan, Karangmojo District, Gunungkidul Regency, Indonesia. International Journal of Advances in Applied Sciences (IJAAS), 12 (2). pp. 93-102. ISSN 252-8814

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Abstract

Embung Batur Agung is a source of irrigation for residents around Embung. Depreciation of water in the reservoir occurs due to leakage from the geomembrane layer of the Embung Batur Agung. This study aims to determine the direction of leakage from the reservoir so that appropriate treatment can be carried out. This research was done using hydrogeological
analysis and electrical resistivity tomography (ERT) geoelectrical measurements. ERT Geoelectrical measurement uses a dipole-dipole configuration with a spacing of 5 m and 10 m and a line length of 100 m. There are 2 lines in the southwest and southeast of the reservoir. The results
of geohydrology analysis, it was found that the aquifer system around the reservoir included in the Gunungsewu aquifer system, and the dynamics of surface groundwater are controlled by faults and fractures. The results of the
ERT geoelectrical measurement, there is a low anomaly which can indicate a reservoir leak at 50-60 m on line 1 which is in the southwest of the reservoir. This low anomaly has a vertical pattern as well as there is a fracture which is
the cause of the reservoir leak. These low anomaly values range from 4-30 Ωm which can be interpreted as the presence of water that has conductive properties. The results of this study are expected to be used by the local government to handle the leakage of the reservoir

Keywords:
Embung Batur Agung ERT Reservoir leakage Resistivity

Item Type:	Article
Uncontrolled Keywords:	Embung Batur Agung ERT Reservoir leakage Resistivity
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User:	SARI BAHAGIARTI KUSUMAYUDHA
Date Deposited:	15 Jun 2023 08:24
Last Modified:	15 Jun 2023 08:43
URI:	http://eprints.upnyk.ac.id/id/eprint/35948

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