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All Journal Indonesian Journal of Geography TEKNIK Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Ilmu Lingkungan YOUNGSTER PHYSICS JOURNAL Media Komunikasi Geografi IJOG : Indonesian Journal on Geoscience Jurnal RISET Geologi dan Pertambangan JURNAL KESEHATAN LINGKUNGAN (Journal of Environmental Health) Jurnal Wilayah dan Lingkungan Jurnal Tataloka Jurnal Geocelebes Journal of Geoscience, Engineering, Environment, and Technology JLBG (Jurnal Lingkungan dan Bencana Geologi) (Journal of Environment and Geological Hazards) PROMINE BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Jurnal Geosains dan Teknologi Indonesian Journal on Geoscience Jurnal Geosains dan Remote Sensing (JGRS) Indonesian Journal on Geoscience Jurnal Litbang Kota Pekalongan Jurnal Profesi Insinyur Indonesia Prosiding Seminar Nasional Rekayasa dan Teknologi (TAU SNAR- TEK) Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources)
Thomas Triadi Putranto, Thomas Triadi
Departemen Teknik Geologi Fakultas Teknik Universitas Diponegoro Magister Ilmu Lingkungan, Sekolah Pascasarjana Universits Diponegoro
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Physics Public Health Social Sciences Transportation

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Analisis Kualitas Air Tanah Akuifer Bebas Menggunakan Metode Indeks Pencemaran (IP) dan Water Quality Index (WQI) di Kota Semarang, Jawa Tengah Anggraeni, Wahyu Dini; Santi, Narulita; Putranto, Thomas Triadi; Widiarso, Dian Agus
Jurnal Geosains dan Remote Sensing Vol 6 No 1 (2025): JGRS Edisi Mei
Publisher : Department of Geophysical Engineering, Faculty of Engineering, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jgrs.ft.unila.417

Abstract

Air tanah menjadi salah satu kebutuhan masyarakat, Kota Semarang setidaknya membutuhkan air bersih sebanyak 61,7 m3 setiap tahunnya. Oleh karena itu, kualitas air tanah harus diperhatikan untuk memenuhi kebutuhan air bersih masyarakat. Penelitian bertujuan untuk mengetahui kondisi geologi, geomorfologi, hidrogeologi, kualitas air tanah, serta faktor yang berpengaruh terhadap kualitas air tanah di Kota Semarang tepatnya pada 11 kecamatan. Sebanyak 30 sampel sumur gali dilakukan analisis menggunakan metode Indeks Pencemaran (IP) dan Water Quality Index (WQI) dengan standar baku mengacu pada Permenkes Nomor 2 Tahun 2023 dan WHO (2022). Hasil penelitian menunjukkan keterdapatan litologi aluvium dan konglomerat di daerah penelitian, bentuk lahan terbagi menjadi bergelombang landai denudasional, bergelombang miring denudasional, dan berbukit bergelombang denudasional, sedangkan aliran muka air tanah daerah penelitian menuju ke arah utara tepatnya ke arah Laut Jawa. Kualitas air tanah dengan metode IP menunjukkan nilai 0,61-7,96 dimana terbagi menjadi 3 kategori yakni kondisi baik, cemar ringan, dan cemar sedang. Kualitas air tanah berdasarkan metode WQI dengan standar baku Permenkes (2023) menunjukkan nilai 33,5-1458,36, sedangkan standar baku WHO (2022) menunjukkan nilai 19,59-978,96, kedua standar baku menunjukkan kualitas air tanah terbagi menjadi kategori sangat baik, baik, buruk, sangat buruk, dan tidak layak minum. Air tanah dengan kualitas relatif baik terdapat pada Kecamatan Ngaliyan dan Gajahmungkur.
Aplikasi Metode DRASTIC untuk Analisis Kerentanan Air Tanah terhadap Pencemaran di Kabupaten Tanah Laut, Kabupaten Banjar, dan Kota Banjarbaru, Provinsi Kalimantan Selatan Putranto, Thomas Triadi; Budihardjo, Mochamad Arief; Sarminingsih, Anik
TEKNIK Vol. 43, No. 1 (2022): May 2022
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v43i1.42660

Abstract

In 2017-2019, the Tanah Laut Regency, Banjar Regency, Banjarbaru City population was relatively high and continued to increase every year. The increase in the population reaches 1.39% to 2.92%. Along with population growth, the human need for clean water also increases, especially from groundwater. The study aims to assess the vulnerability of groundwater to contamination. The method used for the analysis of groundwater vulnerability to contamination is the DRASTIC method. It refers to seven parameters, namely groundwater depth (D), net recharge (R), aquifer media (A), soil layer (S), topography (T), impact to vadose zone (I) and hydraulic conductivity (C) by using geospatial analysis to calculate the DRASTIC Index/DI. From the results of geospatial analysis, there are three zones of groundwater vulnerability to contamination based on DI values, namely low vulnerability (95-106), medium vulnerability (106-146), and high vulnerability (146-186). The distribution of high zones dominates in the research area around of 75, 8%. The DRASTIC method requires a lot of data to provide an accurate analysis of groundwater vulnerability zone maps. This method has excellent accuracy and more effective in producing a map of the groundwater vulnerability zones to contamination.
Microbiological Study of Escherichia Coli Contamination in Dug Wells in Demak District, Central Java Santi, Narulita; Fanny, Celsy Miftaqul Tiara; Pangestuti, Dina Rahayuning; Putranto, Thomas Triadi; Putri, Maya Aiko Salsabila
JURNAL GEOCELEBES Vol. 9 No. 1: April 2025
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70561/geocelebes.v9i1.43184

Abstract

Demak Regency is a peri-urban area in Java experiencing an increasing demand for clean water due to population growth and development. Groundwater is the primary source to meet this demand, although its quality is often threatened by pollution from household waste and unprotected septic tanks. This study aims to evaluate groundwater quality in Demak District with the Escherichia coli presence parameter in unconfined aquifers using a GIS-based spatial approach and IDW interpolation method. The geology of the study area includes sandstone, carbonate mudstone, and alluvium lithologies, with most regions having flat slopes. The hydrogeological potential of the study area shows diverse aquifer productivity, with groundwater levels ranging from 0.3–41 meters. The results of the groundwater quality analysis in the study area showed that 47% of the samples exceeded the safe limit for Escherichia coli by Ministry of Health Number 2 Year 2023. The shallow depth of the groundwater table and poor well construction allow the infiltration of contaminants from the land surface into the groundwater, especially from polluting sources around the well. This study provides an essential overview of groundwater quality in the Demak District, which can support sustainable groundwater management and improved sanitation to improve public health.
Isotope Analysis of 18O and 2H: A Coastal Confined Aquifer Case Study Nugraheni, Vania Salsabila Anabel; Santi, Narulita; Putranto, Thomas Triadi; Marin, Jenian; Hidayatillah, Ahmad Syauqi
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 3 (2025): November 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i3.909-921

Abstract

In 2023, groundwater quality in Semarang declined due to excessive extraction, leading to land subsidence and reduced groundwater availability. Prolonged dry seasons caused drought in ten villages across five sub-districts. This study aims to investigate geological conditions, groundwater flow patterns, and the spatial distribution of pH, TDS, hardness, electrical conductivity, and major ions (Na⁺, Ca²⁺, Cl⁻, and HCO₃⁻). Additionally, it seeks to interpret groundwater evolution through Gibbs diagram analysis and identify groundwater origins using stable isotopes (¹⁸O and ²H). The methodology involves stable isotope analysis to trace groundwater sources and evaluate d-excess values, which are linked to drought conditions and recharge mechanisms. Water chemistry analysis was performed to characterize ion concentrations, while the Gibbs diagram was used to identify the dominant geochemical processes influencing groundwater. The study area comprises claystone, marl, sandstone, volcanic breccia, and alluvium, with 60 sampling points spanning Upper and Lower Semarang. Water types identified include NaHCO₃, NaCl, CaHCO₃, MgHCO₃, and NaSO₄. NaHCO₃ was the most common, followed by NaCl and CaHCO₃. Isotope analysis revealed several points with d-excess <10 (e.g., SB-10L, SB-20L, SA-4, SA-8, SA-29), indicating groundwater recharge from modern rainfall, typically characterized by d-excess values >10. 
Identifikasi Karakteristik Zona Prospek Timah Primer Berdasarkan Pemetaan Geologi Permukaan dan Analisis Geokimia Daerah Kelapakampit dan Sekitarnya, Kabupaten Belitung Timur, Provinsi Bangka Belitung Noorbasith Al Fajri; Putranto, Thomas Triadi; Ali, Rinal Khaidar
Jurnal Geologi dan Sumberdaya Mineral Vol. 26 No. 2 (2025): JURNAL GEOLOGI DAN SUMBERDAYA MINERAL
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v26i2.823

Abstract

Kepulauan Bangka Belitung memiliki potensi timah yang besar baik timah primer dan timah sekunder. Akan tetapi timah primer belum dimanfaatkan secara optimal dibandingkan timah sekunder sehingga perlu dilakukan penelitian secara lebih lanjut. Penelitian ini dilakukan di Kelapakampit dan sekitarnya, Kabupaten Belitung Timur. Tujuan dari penelitian ini yaitu. mengetahui kondisi geologi dan zona prospek endapan timah primer di daerah penelitian. Metode penelitian yang dilakukan yaitu pemetaan geologi permukaan, analisis geomorfologi, struktur geologi, petrologi, petrografi, mineragrafi, X-Ray Difraction (XRD), dan X-Ray Fluorescence (XRF). Berdasarkan hasil analisis diketahui geomorfologi daerah penelitian terdiri dari berbukit bergelombang-berbukit terjal struktural dan bergelombang miring-landai struktural. Daerah penelitian terdiri dari 2 satuan litologi yaitu metabatupasir dan batupasir. Struktur yang berkembang di daerah penelitian berupa kekar tarik, kekar gerus, kelurusan, dan indikasi sesar. Tipe alterasi hidrotermal di daerah penelitian termasuk kedalam eksogreisen dan argilisisasi. Mineralisasi yang berkembang di daerah penelitian termasuk dalam tipe endapan urat kuarsa-kasiterit dan sulfida-kasiterit. Mineralisasi timah dicirikan dengan hadirnya mineral kasiterit yang berasosiasi dengan beberapa mineral sulfida. Berdasarkan analisis geokimia XRF, nilai Sn pada sampel batuan menunjukkan rentang dari 115,5-727,7 ppm dan sampel streams sediment menunjukkan rentang 51 130.800 ppm. Zona prospek timah primer terdapat pada bagian tengah dan barat laut daerah penelitian. Ditemukan anomali Pb dengan rentang 5.080 - 173.590 ppm dan Zn dengan rentang 1.680 - 2.040 ppm. Kata Kunci: Belitung, Timah Primer, Mineralisasi, Zona Prospek Abstract The Bangka Belitung Islands have great tin potential, both primary and secondary tin. However, primary tin has not been utilized optimally compared to secondary tin, so further research is needed. This research was conducted in Kelapakampit and its surroundings, East Belitung Regency. The purpose of this study is to determine the geological conditions and the prospective zones of primary tin deposits in the study area. The research methods applied include surface geological mapping, geomorphological analysis, geological structure studies, petrology, petrography, mineragraphy, X-Ray Diffraction (XRD), and X-Ray Fluorescence (XRF). Based on the analysis results, it is known that the geomorphology of the study area consists of rolling hills to steep structural hills and gently sloping structural undulating areas. The study area consists of 2 lithology units, namely metasandstone and sandstone. The structures developed in the study area include tension joints, shear joints, lineaments, and indications of faults. The types of hydrothermal alteration in the study area include exogreisen and argillization. Mineralization developed in the study area belongs to the type of quartz-cassiterite vein deposits and cassiterite-sulfide deposits. Tin mineralization is characterized by the presence of cassiterite mineral associated with several sulfide minerals. Based on XRF geochemical analysis, Sn values in rock samples range from 115.5–727.7 ppm, and stream sediment samples range from 51–130,800 ppm. The primary tin prospect zone is located in the central and northwest parts of the study area. An anomaly of Pb was found with a range of 5.080 - 173.590 ppm and Zn with a range of 1.680 - 2.040 ppm. Keywords: Belitung, Primary Tin, Mineralization, Prospect Zone
Co-Authors Agus Harjanto Agus Harjanto Aisyah Nur Isneni Aji Bagas Putro Anggraeni, Wahyu Dini Anik Sarminingsih, Anik Annita Kusuma Wardhani Apoina Kartini Arizatur Reza Wicaksono Aska Zakiya Asri Cahaya Hati Axel Prima Agita Susanta Daniel Setiawan Dedi Hermawan Devina Trisnawati Dhana Hastuti Dina Rahayuning Pangestuti Dina Rahayuning Pangestuti, Dina Doni Prakasa Eka Putra Erlangga Erlangga Fadilah, Amar Jihad Fanny, Celsy Miftaqul Tiara Fatir Yuslihanu, Fatir Firza Syarifa Zahra Firza Syarifa Zahra Fuad Muhammad Fuad Muhammad Garindra Yogiswara Goji Pamungkas H Hadiyanto Hakkina, Delano Ichsan Hartanto, Fandika Virgiawan Haryono Setiyo Huboyo Hati, Asri Cahaya Heru Hendrayana Hidayatillah, Ahmad Syauqi I Made Adnyana Nala Imsak Aditya Respati Priyono Isti Karim Muhandini Jayawarsa, A.A. Ketut Kevin Alexander, Kevin Kresno Wikan Sadono M Rio Aulia Mahira Anaqah Huwaina Marin, Jenian Mochamad Arief Budihardjo Muhammad Iqbal Muhrozi Muhrozi Mustiono, Ady Rieo Wahyu Naintina Lisnawati Najib Najib Narulita Santi Nestri Martini Noorbasith Al Fajri Norma Afiati Novi Susanto Novie Susanto Nugraheni, Vania Salsabila Anabel Pranata, Mathias Andika Setya Putri, Maya Aiko Salsabila Rahmawati, Laily Agustina Reddy Setyawan Rinal Khaidar Ali Rinal Khaidar Ali Rino Dwi Hutama Rr. Tony Yulianto Santhi Widyastuti Santi, Narulita Sapto Purnomo Putro Sinatrya Diko Prayudi Sinatrya Diko Prayudi Sri Sangkawati Suharyanto Suharyanto Susanta, Axel Prima Agita Susanta, Axel Prima Agita T. Listyani R.A. Taat Setiawan Taat Setiawan, Taat Tabitha Abid Ardaneswari Tri Winarno Truman Simaremare Umar, Savikri Misbahul Wahju Krishna Hidajat Wahju Krisna Hidajat Wahju Krisna Hidayat Widiarso Dian Agus Widyanto David Yanuar Niko Priambodo Zulfa Nindya Salsabila