Water quality for drinking purposes using GPS in some major coastal areas of Nagapattinam district-South India

Groundwater samples have been collected from 105 various location of major costal area, 35 revenue village of sirkali Taluk of Nagapattinam district, Tamil Nadu, India and these samples were used to assess the water quality for drinking purposes. The study area is sirkahi Taluk of Nagapattinam district coastal region in the southern Tamilnadu State located in the coastal region of Bay of Bengal 11.02903730N Latitude and 79.85068150 E Longitude. The physico-chemical parameters of groundwater like pH, Electrical conductivity (EC),Total dissolved solids (TDS) Total hardness (TH), Ca, Mg, Na, K, SO4,Cl, CO3, HCO3, Zn, Mn, Cu and Fe were determined. The values were analyzed and compared with World Health Organization (WHO) water quality standards and Bureau of Indian Standards (BIS). Suitable groundwater quality zones for drinking purpose were identified through GPS system.