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Journal : Journal of Geoscience, Engineering, Environment, and Technology

Application of DRASTIC Method for Groundwater Vulnerability Analysis to Contamination in Pemalang District, Pemalang Regency, Central Java Province, Indonesia Firginawan Surya Wanda; Doni Prakasa Eka Putra; Wahyu Wilopo
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.2025.10.02.22209

Abstract

Pemalang District, Pemalang Regency, Central Java Province, as the district's capital, has experienced rapid economic and population growth. This has resulted in increased exploitation and degradation of groundwater quality, with groundwater extraction increasing from 91,856 m³ to 133,708 m³. There was an average decrease in groundwater levels of 40-70 cm from 2020 to 2023, and an increase in nitrate and chloride levels in groundwater was recorded from 2021 to 2023. To maintain the availability of groundwater that is suitable for use, efforts are needed to prevent groundwater contamination in vulnerable areas. The approach applied to examine groundwater vulnerability to contamination is the DRASTIC method. The research location is a coastal area composed of quaternary deposits with lithology consisting of sand and gravel in the south and clay and silt in the north. It has a shallow groundwater depth and a groundwater flow pattern that flows from south to north. The results of the geospatial analysis revealed two zones of groundwater vulnerability to contamination, based on the DRASTIC Index value, consisting of moderate vulnerability   (>106-146) and high vulnerability (>146-186). There were 67.4% of high vulnerability zones in this research area, spread from the central part, which is Wanamulya Village, to the southern part, which is Surajaya Village.
Co-Authors Abd Karim, Amirul Aiman Adelide Asriati Sekar Rianda Adhi Susanto Adi, Restu Dwi Cahyo Adriansyah, Yan Afandi, Moh Fahri Afrizal Abdi Musyafiq Agung Setianto Agus Aktawan Agus Budhie Wijatna Agus Prasetya Agus Prasetya Ahmad Agus Setiawan Ahmad Agus Setiawan Ahmad Taufiq Ahmad Tawfiequrrahman Yuliansyah Ainul Fatayaatis Salaamah Aisyah Shahirah Juhari Alessandro Pagliaroli AM Lelie Novia W Amalina, Anisa Nur Amirul Aiman Abd Karim Andriyanto Andriyanto Anh Bui, Tuan Ansori, Tirangga Ardiansyah Arief Budiman Arif Kusumawanto Arrisaldi, Thema Aspriadi, Feri Atikah Zahidah Atmaja, Ammar Dwi Avantio Pramaditya Bayu, Himawan Tri Boreborey, Ty Boulom, Johnny Bramono Dwi Kusumo Budi Nur Cahyo Daris, Pieter Jhon Joshua Deepak Chamlagain Defi Rizkasari Denizar Rahman Dianto Isnawan Didit Hadi Barianto Doni Prakasa Eka Putra Dwi Kusumo, Bramono Dwiana Muflihah Yulianti Dwikorita Karnawati Dwikorita Karnawati Egy Erzagian Ekasara, Adam Raka Endah Retnaningrum Endah Retnaningrum Endah Retnaningrum Endah Retnaningrum Endah Retnaningrum Endah Retnaningrum Endah Retnaningrum Esti Handini Fachry Abda El Rahman Fadliansyah, Fandi Fahriza Fawwas Asrory Farma Dyva Ferardi Fathan, Teuku Faisal Fatmawati, Nurlaila Feikal Aprieza Ferardi, Farma Dyva Ferian Anggara Fikri Faris Fikri Faris, Fikri Firginawan Surya Wanda Fuady Ahmad Lathif, Iqbal Fuady Ahmad Galeh Nur Indriatno Putra Pratama Giuseppe Lanzo H Setiawan Harry Leo Kharisma Haryono, Septiawan Nur Hendy Setiawan Heng, Salpisey Hermawan, Much. Taufik Tri Heru Hendrayana Hirajim, Tsuyoshi Hirajima, Tsuyoshi I Gde Budi Indrawan I Wayan Warmada Inderawan, Gde Budi Irvani Irvani Irvani, Irvani Irvani, Irvani Irwan Setyaji Johnny Boulom Joko Waluyo Junji Kiyono Junji Kiyono Junun Sartohadi K D Setyawan Keiko Sasaki Kezia Kartika Windya Kezia Kartika Windya Khan, Kamran Kirbani Sri Brotopuspito Kirbani Sri Brotopuspito Kirbani Sri Brotopuspito Kiyono, Junji Kusumaningrum, Serafica Btari Christiyani Lathif, Iqbal Fuady Ahmad Luthfi Effendi Luthfi Effendi Makealoun, Somyot Manixone Thepgnothy Maris Setyo Nugroho Mohammad Kholid Ridwan Mohammad Pramono Hadi Muflih, Ghufron Zaida Muhammad Haikal Razi Muhammad Hidayat Furqon Muhammad Sulaiman Muhammad Zulfikrie Myat Thu Naing Nadia Sekarlangit Nugroho, Sunu Ardhi Nurul Huda Nur’Aini Purnamaningsih Phyu Phyu Thin Puji Pratiknyo Puji Pratiknyo Pujo Widiyantoro, Wahid Pulung Arya Pranantya, Pulung Arya Pyi Soe Thein Pyi Soe Thein Qurrahman, Alfian Hardi R Risanti R. Andy Erwin Wijaya Rahman, Denizar Raja Susatio Raja Susatio Rama Tri Saksono Ramesh Adhikari Restu Dwi Cahyo Adi Restu Tandirerung Retnaningrum, Endah Retnaningrum, Endah Ridwan Budi Prasetyo Rilo Restu Surya Atmaja Ronggo Sadono Salaamah, Ainul Fatayaatis Salahuddin Husein Salpisey Heng Samodra, Guruh Santie, Putri Anjary Widya Sasaki, Keiko Satoru Kawasaki Sekar Rianda, Adelide Asriati Septiawan Nur Haryono Setiawan, Ahamd Agus Setiawan, Muhammad Anggri Shinta Dwi Novianti Slamet Widodo Somyot Makealoun Soutsadachan Chandalsouk Sri Anggoro Prahastono Srijono ., Srijono Srijono Srijono Srijono Srijono Srijono Srijono, Srijono Su Dar mono Subagyo Pramumijoyo Subagyo Pramumijoyo Subagyo Pramumijoyo, Subagyo Subur Priyono Sudarno, Ignatius Sunarko Sunarko Sunarko Sunarko Surya Damar Sasongko Putro Susatio, Raja Taufiq Muhammad Wijayanto Teuku Faisal Fathani Teuku Faisal Fathani Teuku Faisal Fathani Teuku Faisal Fathani Teuku Faisal Fathani Teuku Faisal Fathani Teuku Faisal Fathani Teuku Faisal Fathani Teuku Faisal Fathani Thein, Pyi Soe Thema Arrisaldi, S.T., M.Eng. Thepgnothy, Manixone Tsuyoshi Hirajim Tsuyoshi Hirajima Tsuyoshi Hirajima Tuan Anh Bui Ty Boreborey umi barokah Vienti Hadsari Warmada, Wayan Wawan Budianta Wijayanto, Taufiq Muhammad Wisnu Rachmad Prihadi Yan Adriansyah Yuli Fajarwati Yulianti, Dwiana Muflihah Zuhdi, Rasyid Zulaikha Budi Astuti Zulkifli Zulkifli