Ground water chemistry: A case study of eastern part of Sikar city (Rajasthan), India

For major ions evolution and classification of ground water in eastern part of Sikar city, 21 ground water samples have collected and analyzed for different water quality parameters, such as pH, EC, TDS, TH, TA, DO, calcium, magnesium, sodium, potassium, carbonate, bicarbonate, chloride, nitrate, sulfate and fluoride with the help of standard methods recommended by American Public Health Association. The analysis indicated that EC, TDS, nitrate, chloride and fluoride content in some samples are at alarming state as compared to the WHO standards for drinking purposes, thereby suggesting the need for treatment and precautionary measures for use of the particular ground water. To classify the ground water ability for different purposes, various plots like U.S. salinity, Durov, Schoeller diagrams have been drawn and chemical indices like sodium absorption ratio, percent sodium, residual sodium carbonate, permeability index and chloro alkaline indices are calculated.