Analysis of Groundwater Pollution Vulnerability Using DRASTIC Method Development in Bandung City Adi Mulyana Supriatna (a*), Suprihanto Notodarmodjo (b), Ira Ryski Wahyuni (a), Assyifa Junitasari (a)
a) Departement of Chemistry, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung, JL. A.H. Nasution No. 105 Bandung, West Java, 40614, Indonesia.
b) Departement of Environmental Engineering, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, JL. Ganesha No.10 Bandung, West Java, 40132, Indonesia
Abstract
Bandung is one of the major cities in Indonesia with a high population density. To meet clean water needs, most people in Bandung use groundwater. Problems related to groundwater are increasing of limited quantity and vulnerability of quality by pollution. The efforts to protect groundwater quality from pollutants can be started by mapping the areas that are vulnerable to pollution. There are various methods to map the pollution vulnerability of an area, one of its is DRASTIC method. The parameter of this method consists of groundwater level, rainfall, aquifer media, soil media, topography, vadose zones, hydraulic conductivity. In this research, this method is developed by adding land use parameters to become more dynamic. The distribution information of groundwater pollution vulnerability can be used as a reference in sustainable development. Accordingly, this study aims to zone the level of groundwater pollution vulnerability in Bandung. The research methodology begins by collecting map data by following the required parameters. Afterward, it is weighted to each parameter by overlaying the map in the Arc.GIS software. The results of this study are Bandung City region has 3 classes of groundwater pollution vulnerability consist of high (22%), moderate (72%), and low (6%) zones.
