Physico – Chemical analysis of well and bore well water samples was carried out from sixsampling sites of coastal area for the months of February and March 2006. The analysis of different parameters namely- pH, temperature total alkalinity, total hardness, chloride, sulphate, nitrate, TDS, DO, BOD, COD were carried out as per standard methods . The present study aimed to calculate water quality index (WQI) in order to assess the suitability of water for drinking purposes. The results obtained on WQI from different sampling stations were found to be varied from 37 to 46.