Spatial Study of Groundwater Availability Zoning in Bandung City Using Analytical Hierarchy Process Method

Ghina Yusriyyah Salma, Dede Rohmat, Haikal Muhammad Ihsan

Abstract


The demand for clean water continues to increase in line with the growing population. Meanwhile, the availability of clean water in terms of quantity has not increased, and there has even been a significant reduction due to pollution caused by human activities. Bandung City, as the Bandung Basin Urban Strategic National Area, will naturally increase the interest of residents in settling there. This study aims to analyze the dominant factors determining groundwater availability, analyze the zoning conditions of groundwater availability, and analyze the validity of the groundwater availability zoning map in Bandung City. The method used in determining the weight value is using the Analytical Hierarchy Process (AHP). The determining parameters of groundwater availability in this study are land use, slope, soil type, rainfall, geology, water table depth, and aquifer thickness. The results showed 1) the dominant factor determining the availability of groundwater in Bandung City is the water table depth; 2) the zoning of groundwater availability in Bandung City is predominantly classified as medium, covering an area of  48.9% with three sub districts failing into the low groundwater availability category; 3) The groundwater availability map validation is considered to meet the standards, with an overall accuracy of 83.3%. Based on the spatial study results, efforts are recommended to prevent groundwater scarcity in terms of both demand and supply, particularly in areas categorized as having low availability.

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References


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