Physico-chemical analysis of ground water samples of Veppanthattai Taluk in Perambalur District, Tamil Nadu, India

Ground water samples of open wells and bore wells collected from different locations inVeppanthattai Taluk in Perambalur District were analyzed for their physico-chemical characteristics. The ground water samples were studied during pre-monsoon and post-monsoonseasons from twelve different villages. The present study was undertaken to characterize thephysico-chemical parameters such as temperature, pH, Total Alkalinity (TA), ElectricalConductivity (EC), salinity, Calcium Hardness (CH), Magnesium Hardness (MH), Total Hardness(TH), Total Dissolved Solids (TDS), Total Suspended Solids (TSS), Total Solids (TS) andfluoride. Each parameter was compared with the standard permissible limit of the parameter asprescribed by World Health Organization (WHO). The Langelier Saturation Index (LSI) showsthat majority of samples have the border line corrosive nature with negative LSI values. The WaterQuality Index (WQI) reflected that out of 12 samples 6 are under acceptable quality. The KarlPearson Correlation matrix has approved the influence of CH on TH, EC, Salinity and TDSwith significantly positive correlation. The study reveals that in few villages, water has highhardness and fluoride content. Hence, ground water must be used for drinking after propertreatments viz., softening and defluoridation.