会议论文详细信息
3rd International Conference of Planning in the Era of Uncertainty
Factor weighting in DRASTIC modelling for assessing the groundwater vulnerability in Salatiga groundwater basin, Central Java Province, Indonesia
Kesuma, D.A.^1 ; Purwanto, P.^1,2 ; Putranto, T.T.^1,3 ; Rahmani, T.P.D.^4
Master Program in Environmental Science, School of Postgraduate Studies, Diponegoro University, Semarang
50241, Indonesia^1
Department of Chemical Engineering, Faculty of Engineering, Diponegoro University, Semarang
50275, Indonesia^2
Department of Geological Engineering, Faculty of Engineering, Diponegoro University, Semarang
50275, Indonesia^3
Department of Biological Science, Faculty of Science and Engineering, Islamic State University of Walisongo, Semarang
50185, Indonesia^4
关键词: Aquifer materials;    Central Java Province;    Groundwater basins;    Groundwater contamination;    Groundwater vulnerability;    Human population;    Local authorities;    Shallow groundwater;   
Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/70/1/012008/pdf
DOI  :  10.1088/1755-1315/70/1/012008
来源: IOP
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【 摘 要 】

The increase in human population as well as area development in Salatiga Groundwater Basin, Central Java Province, will increase the potency of groundwater contamination in that area. Groundwater quality, especially the shallow groundwater, is very vulnerable to the contamination from industrial waste, fertilizer/agricultural waste, and domestic waste. The first step in the conservation of groundwater quality is by conducting the mapping of the groundwater vulnerability zonation against the contamination. The result of this research was groundwater vulnerability map which showed the areas vulnerable to the groundwater contamination. In this study, groundwater vulnerability map was assessed based on the DRASTIC Method and was processed spatially using Geographic Information System. The DRASTIC method is used to assess the level of groundwater vulnerability based on weighting on seven parameters, which are: depth to the water table (D), recharge (R), aquifer material (A), soil media (S), topography (T), impact of vadose zone (I), and hydraulic conductivity (C). The higher the DRASTIC Index will result in the higher vulnerability level of groundwater contamination in that area. The DRASTIC Indexes in the researched area were 85 - 100 (low vulnerability level), 101 -120 (low to moderate vulnerability level), 121 - 140 (moderate vulnerability level), 141 - 150, (moderate to high vulnerability level), and 151 - 159 (high vulnerability level). The output of this study can be used by local authority as a tool for consideration to arrange the policy for sustainable area development, especially the development in an area affecting the quality of Salatiga Groundwater Basin.

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