Estimation of intrinsic vulnerability of shallow groundwater in Jombang District, Jombang Regency, East Java, Indonesia based on Aquifer Vulnerability Index

Abstract

The level of safety of groundwater to pollution hazards can be identified based on the level of vulnerability of the groundwater to pollution. Determination of groundwater vulnerability intrinsically can be done by using the Aquifer Vulnerability Index (AVI) method based on two physical parameters i.e. the thickness of each layer above the uppermost of saturated aquifer surface and the estimated hydraulic conductivity of each of these sedimentary layers. The objective of this study was to determine the level of groundwater vulnerability intrinsically based on the vulnerability index value of aquifers by using the AVI method. This study was conducted based on sample of 25 dug wells scattered in the Jombang District of Jombang Regency, East Java, Indonesia. Based on the results of the analysis using the AVI method, it can be stated that the hydraulic resistance logarithm in the study area were found to be in the range from -5.22 to 3.84 with the intrinsic vulnerability of groundwater to pollution hazards from extremely high to low.

Penilaian Kualitas Air Tanah dan Pengaruhnya terhadap Kesehatan Masyarakat di Kecamatan Sukun Kota Malang

“…Kedalaman muka air tanah diukur dengan menggunakan tali yang diberi pemberat dengan styrofoam sebagai batas nol, ketika styrofoam mencapai muka air, tali akan diangkat kemudian diukur. Untuk menghitung elevasi muka air tanah menggunakan selisih nilai elevasi muka tanah dengan kedalaman muka air tanah (Siswoyo & Azhar, 2019). Pengambilan contoh air tanah dilakukan dengan ember dengan pemberat.…”

Tinjauan Literatur Sistematis dan Analisis Bibliometrik Penelitian Kerentanan Airtanah di Indonesia (2013-2021)

“…Penelitian kerentanan airtanah selain memiliki keragaman secara lokasi juga memiliki keragaman secara metode yang digunakan. Hasil tinjauan literatur sistematik menunjukkan ada beberapa metode yang digunakan dalam penelitian kerentanan airtanah di Indonesia diantarnaya GOD (Sukmawati Rukmana et al, 2020;Widodo et al, 2021), DRASTIC (Aribowo et al, 2021b;Kesuma et al, 2017;Koesuma et al, 2021;Machdar et al, 2018;Putranto & Aribowo, 2020;Wicaksono et al, 2013), HGZ (Klaas et al, 2017(Klaas et al, , 2018, COP (Yogafanny & Legono, 2021), APLIS (Syafarini et al, 2021), SVV (Aribowo et al, 2021a), EPIK (Riyanto et al, 2020;Syahidin & Murti, 2021), AVI Putranto & Yusrizal, 2018;Siswoyo & Azhar, 2019), SINTACS dan SINTACS Lu (Ayu Wandari et al, 2020;Primastuti & Kusratmoko, 2018), SI (Marjuanto et al, 2019) , DRANTHVP (Ahadiah & Widyastuti, 2020), PCSM (Putranto & Marjuanto, 2021). Selain satu metode tunggal ada juga yang menggunakan integrasi beberapa metode diantaranya GOD dan DRASTIC , AVI -GOD -SINTACS -DRASTIC (Nugraha et al, 2020)…”