GROUND WATER QUALITY ANALYSIS USING GIS IN NANDUR VILLAGE AREA

Abstract

This study has effectively utilized GIS in conjunction with laboratory analysis to evaluate and map groundwater quality in the Nandur Village area. The spatial distribution maps of various water quality parameters including pH, Alkalinity, Calcium, and Magnesium indicate that these parameters generally fall within permissible limits across the study area. However, the interpretation of Electrical Conductivity (EC) levels reveals that over 90% of the groundwater in the study area is unsuitable for drinking purposes. Additionally, the distribution map of Alkalinity concentrations shows that most samples do not meet permissible limits, with exceptions noted at sampling points 6. Calcium ion levels are generally within acceptable limits, though samples from points 1, 2, 4, and 12 exceed these limits. Magnesium ion levels are generally within acceptable limits at all locations. The overall Water Quality Index (WQI) assessment indicates that a majority of the study area exhibits a WQI value less than 50, except for areas surrounding sample points 1, 2, 10, 11, and 12. Despite these findings, groundwater in most parts of the study area remains suitable for drinking and domestic use, except for Kunjir Bio Energy LLP and Khamgaon Tek and IAR borewell 1. This study underscores the significant utility of GIS and remote sensing as indispensable tools for comprehensively assessing groundwater quality. The detailed spatial analysis provided by GIS has enabled a nuanced understanding of the distribution and implications of various water quality parameters, which is crucial for informed decision-making and sustainable management of groundwater resources in the Nandur Village area.