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All Journal Bulletin of Scientific Contribution : Geology IJOG : Indonesian Journal on Geoscience Jurnal RISET Geologi dan Pertambangan Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Journal of Geoscience, Engineering, Environment, and Technology JLBG (Jurnal Lingkungan dan Bencana Geologi) (Journal of Environment and Geological Hazards) Buletin Sumber Daya Geologi Indonesian Journal on Geoscience Indonesian Journal on Geoscience Journal La Lifesci
Boy Yoseph Cahya Sunan Sakti Syah Alam
Fakultas Teknik Geologi Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Physics

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Vertical Electrical Sounding Exploration of Groundwater in Kertajati, Majalengka, West Java, Indonesia Gumilar Utamas Nugraha; Boy Yoseph CSSSA; Andi Agus Nur; Pulung Arya Pranantya; Lina Handayani; Rachmat Fajar Lubis; Hendra Bakti
Indonesian Journal on Geoscience Vol. 8 No. 3 (2021)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.8.3.359-369

Abstract

DOI:10.17014/ijog.8.3.359-369Continuously increasing population and progressive infrastructural development in the region of Kertajati International Airport, Indonesia, emphasize the need to develop a sustainable water supply network. Airport facilities require sufficient water resources, which can be obtained from surface water and groundwater. Groundwater exploration can provide necessary information for assessing water resources. The purpose of this study is to analyze the configuration of aquifers in the studied area. A Schlumberger array was used to carry out twelve vertical electrical soundings (VES) with AB/2 electrode spacing ranging from 1.5 m to 150 m. IPI2win software was used to qualitatively interpret the VES results and it suggested the presence of three distinct lithological units interpreted as clay, alluvial sand, and a Lower Quaternary formation. In general, resistivity values in the studied area can be divided into five resistivity categories: very low resistivity with values ranging from 1 Ωm to 10 Ωm, low resistivity with values ranging from 10 Ωm to 50 Ωm, medium resistivity with values ranging from 50 Ωm to 100 Ωm, high resistivity with values ranging from 100 Ωm to 200 Ωm, and very high resistivity with values > 200 Ωm. The geo-electric interpretation revealed three geo-electric layers: topsoil (1 - 144 Ω m), sand (1 - 298 Ω m), and clay (1 - 82 Ω m). Aquifers in the studied area are lithologically composed of sand. Clay is the dominant lithology in the studied area, so the presence of aquifers in this area is very limited, and thus the supply of groundwater is also limited. The exploitation of groundwater must be limited and controlled to maintain the sustainability of groundwater in the studied area.
Groundwater Potential of the East and North Sides of Gunungmasigit Village: A Case Study Wijaya, Dwi Suyandi Pasa; Iskandarsyah, Teuku Yan W. M.; Yoseph, Boy
Journal La Lifesci Vol. 5 No. 1 (2024): Journal La Lifesci
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallalifesci.v5i1.1039

Abstract

The purpose of this research is to conduct a groundwater survei by analyzing the availability of groundwater on the east and north sides of Gunungmasigit Village, Kec. cipatat, kab. west bandung (case study: PPSDM Geominerba field campus KESDM). The aim of this study was to determine the potential for groundwater in the northern area of the PPSDM Geominerba Field Campus and to find information regarding the absence of groundwater after drilling was carried out in 2019 in the area on the east side of the PPSDM Geominerba Field Campus. The research administrative area is located in Gunungmasigit Village, Kec. Cipatat, Kab. West Bandung (PPSDM Geominerba field campus KESDM). The author will focus more on the end of Cipatat-1 (north side) on the map, where it is located in the gate area of the Geominerba PPSDM Field Campus. This study uses the geoelectrical measurement method. One of the geoelectrical methods is the resistivity or resistivity method. This method studies the subsurface structure based on the different resistivity values in the rock with depth. Data analysis used IPI2WIN Software with track 1 having a length of 200 meters and track 3 having a length of 400 meters. In the results of Cipatat-1 it is suspected that there is a water-carrying layer at a depth of 11.9 – 45.9 m. Meanwhile, the results of Cipatat-3 suggest that there is a water-carrying layer at a depth of 26.3 m.
KARAKTERISTIK SISTEM HIDROGEOLOGI KARST BERDASARKAN ANALISIS HIDROKIMIA DI TELUK MAYALIBIT, RAJA AMPAT Endah, Raras; Yoseph, Boy; Sukiyah, Emi; Setiawan, Taat
Bulletin of Scientific Contribution Vol 15, No 3 (2017): Bulletin of Scientific Contribution:GEOLOGY
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bsc.v15i3.15100

Abstract

ABSTRAKKarst Teluk Mayalibit memiliki sistem hidrogeologi yang unik karena sebagian pola aliran bukan berasal dari kawasan karst itu sendiri. Penelitian sistem hidrogeologi karst ini dilakukan dengan menggunakan analisis hidrokimia yang dikompilasi dengan observasi hidrogeologi di lapangan. Berdasarkan analisis data hidrokimia seperti temperatur, derajat keasaman (pH), tekanan parsial terhadap CO2 (PCO2),  dan indeks kejenuhan terhadap kalsit (SIkalsit) menunjukan bahwa pada elevasi 40-80 mdpl termasuk dalam zona transisi dengan sifat sistem aliran terbuka atau rongga,  sedangkan pada elevasi 20-40 mdpl analisis hidrokimia menunjukan bahwa elevasi ini termasuk zona aliran menerus dengan sifat sistem aliran tertutup atau difusi. Kata Kunci : Karst, Sistem Hidrogeologi, Hidrokimia, Sistem Aliran, Teluk Mayalibit.ABSTRACT Karst of Mayalibit Bay has a unique hydrogeological system because some flow patterns are not from karst area itself. Karst of hydrogeological system research is done by using hydro chemical analysis which is compiled by hydrogeological observation in the field. Based on analysis of hydro chemical data such as temperature, degree of acidity (pH), partial pressure on CO2 (PCO2), and saturation index of calcite (SIcalcite) showed that at elevation 40-80 mdpl included in transition zone with open flow system or cavity, 20-40 mdpl hydro chemical analysis indicates that this elevation includes a continuous flow zone with the nature of the closed flow system or diffusion. Keywords: Karst, Hydrogeology System, Hydro chemical, Flow System, Mayalibit Bay.
Hydrogeochemical Characterization and Quality Assessment of Groundwater in Rumbai District, Pekanbaru: Implications for Sustainable Water Management Ulfa Yusti; Yoseph, Boy; Hadi Hidayat; Septio, Ghenady
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.20942

Abstract

Groundwater is a vital source of clean water, valued for its high quality, abundant reserves, accessibility, and cost-effectiveness. As a result, effective management is crucial to ensure compliance with relevant standards. However, rapid population growth and increasing human activities have raised the demand for groundwater, which, in turn, impacts its characteristics. These changes can include altered composition, imbalances in autotrophic nutrients, contamination by heavy metals, and seawater intrusion. The availability of reliable groundwater quality data is essential for sustainable development in Pekanbaru City. This research aims to assess the groundwater quality in Rumbai District, explore its hydrogeochemical characteristics, and analyze the distribution of bicarbonate based on physical and chemical parameters. This study is particularly significant as there has been no previous hydrogeochemical analysis of the peatland areas in this region. The research method involves a comprehensive analysis of groundwater conditions, focusing on both physical and chemical factors. The physical condition analysis includes the organoleptic assessment of smell to detect unusual odors, color inspection, and temperature. Total Dissolved Solids (TDS) and electrical conductivity (EC) levels are also measured, providing insight into the water's biological and chemical characteristics. The chemical condition analysis includes pH testing to assess the water's acidity or alkalinity, along with major ion analysis to evaluate the concentrations of cations like calcium, magnesium, sodium, and potassium, and anions such as chloride, sulfate, bicarbonate, and nitrate. For accurate results, proper sample collection using sterilized containers is critical, along with the use of replicates and instrument calibration. Data interpretation involves comparing the findings to established water quality standards, such as those from the World Health Organization (WHO), to assess the groundwater's suitability for consumption or other uses. Based on chemical properties standardized by the Ministry of Health, such as the pH value of water still meets the standard of 7.7, Na+ with an average of all stations is 20.49 Mg/l which still meets the standard, HCO3- with an average of all stations is 59.63 Mg/l l still meets the standard, CI- with the average of all stations is 19.75 Mg/l still meets the standard, SO42- with the average of all stations is 2.81 Mg/l still meets the standard. At ST-01, ST-02, ST-03, ST-04, ST-05, and ST-09, the groundwater meets the standards based on chemical analysis but does not meet the standards based on physical analysis. Meanwhile, ST-06, ST-07, ST-08, and ST-09 meet the required water quality standards based on both physical and chemical standards. Therefore, at ST-01, ST-02, ST-03, ST-04, ST-05, and ST-09, the groundwater is not suitable for use. So based on its chemical properties it still meets quality standards but this groundwater is influenced by the physical properties of groundwater which is not suitable for use at several stations. This study identifies four types of groundwater characteristics: the Na(K)-SO4 type, found at stations ST-01, ST-02, ST-04, ST-07, and ST-04; the Na(K)-HCO3 type, found at station ST-03; the Ca(Mg)-HCO3 type, found at stations ST-05, ST-06, and ST-08; and the Ca(Mg)-SO4 type, found at station ST-10.
Characteristics of Groundwater Hydrochemistry and Stable Isotopes (δ18O & δ2H) in Cadasari, Banten, Indonesia Hidayat, Hadi; Yoseph, Boy; Muda Iskandarsyah, Teuku Yan Waliana
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 02 (2025): JGEET Vol 10 No 02 : June (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.02.21531

Abstract

Groundwater is an essential resource for drinking and domestic use, displaying significant diversity in volcanic regions.This study focuses on Cadasari, Banten, Indonesia, and aims to determine the hydrochemical characteristics of groundwater and the stable isotopes (δ18O & δ2H). Hydrogeological mapping was employed, and analytical data were collected from 20 groundwater sources, including springs, rivers, and wells, at elevations ranging from 167 to 928 meters above sea level. The hydrochemical analysis revealed various groundwater types, such as Ca-HCO3, Ca+Mg-HCO3, Na+K+Ca-HCO3, and Na+K+Ca-Cl. These variations in groundwater types are attributed to differences in volcanic lithofacies. Gibbs and Gaillardet’s diagrams indicate that water-rock interaction processes primarily influence the variability of these groundwater facies in Cadasari, highlighting the significant role of silicate minerals in the groundwater's geochemistry. The isotopic composition of borehole samples shows an average isotope ratio of -7.0 ‰ for δ18O and -41.7 ‰ for δ2H, while dug well samples have average ratios of -6.1 ‰ for δ18O and -34.9 ‰ for δ2H. Spring samples exhibit an average isotope ratio of -6.7 ‰ for δ18O and -39.3 ‰ for δ2H. The isotopic composition across the groundwater samples suggests that the water in this area is of meteoric origin.
Co-Authors Andi Agus Nur Arief Nur Muchamad Asri Arifin Bakti, Hendra Deden Zaenudin Mutaqin Emi Sukiyah Endah, Raras Euis Tintin Yuningsih Febriwan Mohammad Gumilar Utamas Nugraha Hadi Hidayat Handayani, Lina Hendarmawan Hendarmawan Hendra Bakti Iskandarsyah, Teuku Yan W. M. Lina Handayani Lubis, Rachmat Fajar Mega Fatimah Rosana Mohammad Sapari Dwi Hadian Muda Iskandarsyah, Teuku Yan Waliana Muhammad Kurniawan Alfadli Nandian Mareta Nofi Muhammad Alfan Asghaf Nugraha, Gumilar Utamas Pranantya, Pulung Arya Pulung Arya Pranantya Rachmat Fajar Lubis Rachmat Fajar Lubis Septio, Ghenady Taat Setiawan, Taat Ulfa Yusti Undang Mardiana Wijaya, Dwi Suyandi Pasa