Glass containers were used for the collectionof water samples for the analysed and delivered to the Geochemical Lab, Department of Geology, Anna University Chennai. Analyses were normally carried out as soon as the samples reach the geochemical lab. Water quality parameters (Chloride, Sulfate, hardness) were then analyzed in the laboratory according to the methods given in the standard Methods (APHA,AWWA, WPCF 1985). The location of MSW dump yards in the study area shown in figure 2and table 1 show s the type of MSW waste.