Abstract
The idea of Groundwater Vulnerability is based on the supposition that the physical environment may shield groundwater to some extent from impacts from the environment and people, particularly concerning contaminants that reach the subsurface environment. The present study develops the aquifer vulnerability map of the Ranchi Municipal Corporation area through the GIS-based DRASTIC method by calculating Drastic Value Index (DVI) values. The greater the DVI value, the greater the potential for aquifer contamination. The DVI values are categorized into five classes from low to high. The study area has a varied range of Drastic Value Index (DVI) values. It has been found that 47.08% of the total research region comes under the moderately low vulnerability class, followed by the Moderate vulnerability class with 29.49% of the total research region, and 18.57% of the total area comes under the high vulnerability class. Hence, the DVI map could be helpful in the environmental risk assessment aspects during town planning or during the proposal for new developmental or industrial activities. It could also be useful in the site selection procedure for activities that could directly impact Groundwater, like landfill sites.
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Saw, S., Singh, P.K., Patel, R., Deoli, V., Kumar, D. (2023). A GIS-Based DRASTIC Approach for Aquifer Vulnerability Assessment: Study Conducted in the Municipal Corporation Region of Ranchi, Jharkhand. In: Pande, C.B., Kumar, M., Kushwaha, N.L. (eds) Surface and Groundwater Resources Development and Management in Semi-arid Region. Springer Hydrogeology. Springer, Cham. https://doi.org/10.1007/978-3-031-29394-8_3
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