Abstract
Ground water is the water present inside the solid surface in the pore soil space. In cities, the people use ground water for their domestic use, in village the people use ground water for the agriculture process. Industries use ground water for their production purpose. The present study has been carried out to evaluate hydrochemical characteristic of ground water of Coimbatore district, TamilNadu, India. Geographical information system (GIS) has been applied to visualize the spatial distribution of groundwater quality in the study area. Twenty different samples were collected and analyzed for different hydrochemical parameters. The ground water in the study area is alkaline in nature. Nine samples within the area have more than maximum level of total dissolved solids. Five samples are having sodium in above maximum allowable limit. Only six samples have permissible limit in potassium in the area. Based on chloride, 90% of samples are within permissible limit. In total hardness, seven samples were exceed the allowable limit. In this agriculture area and industrial area water qualities are not much different maybe all agriculture area also has some industries or dump yard is a reason. The results obtained in this study and the spatial database established in GIS will be helpful for monitoring and managing ground water pollution in this study area.
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