Assessment of Groundwater Pollution Potential Using GIS and Modified Drastic Model in Selangor, Malaysia

Abstract

This study covered the assessment of groundwater pollution potential using modified DRASTIC model and GIS based on hydro-geological environmental parameters Selangor State in Malaysia. The modification of ranges and ratings index in DRASTIC was done using GIS to accommodate hydro-geological settings to implement and adopt data according to Selangor hydro geological environmental parameters. The groundwater pollution potential map showed that the high risk groundwater pollution potential covered 17% of study area in west side of Selangor however, 27% of the east side of Selangor exposed to low risk groundwater pollution potential. Most of the affected area was considered in low land area along the coastal in shallow groundwater table alluvial aquifer. The results significantly show that groundwater pollution potential map was successfully developed using hydro-geological parameters for Selangor area.