Abstract
Groundwater is the most important natural resource required for drinking to many people around the world, especially in rural areas. Twenty Ground water samples were collected from Ambattur Industrial Estate of Chennai district, Tamilnadu (India) for investigation of their physicochemical parameters. These Twenty water samples are analyzed for their physicochemical characteristics. Laboratory investigations were carried out for analysis like, pH, Calcium, Magnesium, Sodium, Potassium, Bicarbonate, Sulphate, Chloride, Nitrate, Fluoride, TDS, Total Hardness, Total Alkalinity. These parameters are effectiveness in calculating quality of ground water. Physicochemical parameters were analysed and values obtained were compared with standard values recommended by Indian Standards (IS) and World Health Organization (WHO). The corresponding water quality index (WQI) were also worked out and reported. Using Geographic Information System (GIS), spatial distribution maps of physico-chemcial parameters and Water quality index have been created. The analysis reveals that the groundwater of the area needs some degree of treatment before consumption, and it also needs to be protected from the perils of contamination.