To ascertain the suitability of groundwater for any purpose, it is essential to classify the groundwater depending upon their hydrochemical properties based on their TDS values.
Most of the groundwater samples are within the maximum permissible limit for drining as per the WHO international standard, except 23 samples of august 2010. The TDS zonation map of august 2010 was prepared by setting the most desirable (500 mg/l) and maximum allowable (1500 mg/l) limits. The map shows that eastern and western part of the study area contains more soluble salts in groundwater which cannot be used for drinking. The spatial variations of various geochemical elements in groundwater were plotted using GIS Figure.4. Higher concentrations of
sodium and chloride ions were noticed in the eastern and western parts of the study area. Leading the groundwater unsuitable for drinking. Increased trend of fluoride concentration were also noticed in the spatial variation diagrams of August 2010.disposal of Municipal Solid Waste in the eastern part of the basin might have affected the groundwater quality.