GROUNDWATER QUALITY ASSESSMENT IN COASTAL REGIONS OF CHENNAI CITY, TAMIL NADU, INDIA – CASE STUDY

*Department of Chemistry, Sriram Engineering College, Perumalpattu, Veppampattu RS, Chennai-602 024 (Tamil Nadu) aDepartment of Chemistry, Vel Tech Multi Tech Dr RR, Dr SR Engineering College, Avadi, Chennai-600 062 (Tamil Nadu) India bSchool of Chemistry, Madurai Kamaraj University, Madurai – 625 021(Tamil Nadu) India cDepartment of Chemistry, Vel Tech Dr RR, Dr SR Technical University, Avadi, Chennai – 600 062 (Tamil Nadu) India