Hydrochemical Characteristics and Groundwater Quality Assessment in Krishnagiri District, Tamilnadu, India
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The hydrochemical characteristics of groundwater in Krishnagiri district, Tamilnadu have been evaluated based on different indices for drinking, irrigation and industrial uses. Groundwater samples were collected from 34 boreholes and analyzed for chemical parameters. The abundance of the major ions is in order of: Na+ > Mg2+ > Ca2+ > K+ and HCO3- > Cl-> NO3- > SO4 2-. Interpretation of analytical data shows three major hydrochemical facies: Ca-HCO3, Ca-Na-HCO3 and Ca-Mg-Cl. The concentration of Ca2+ and SO4 2- is well within the desirable limit in all the locations. The SAR, RSC and Na% showsthat most of the samples are suitable for irrigation. High values of TH and CR at manylocations restrict its use for industrial purpose.
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