Water is one of the abundantly available substances in nature. It is available in rivers, lakes, ponds, ocean etc. Quantities of available surface water are dependant upon rainfall. So, there is a considerable variation in their parameters in different months of a year. Surface sources are generally found to be carrying a lot of suspended impurities, either organic or inorganic. A study was made on the assessment of physico-chemical parameters of the water of AVM canal and is presented here. The paper focuses on the variations in physico-chemical parameters. The parameters studied are Temperature, PH, Electrical conductivity, Chlorinity, Dissolved oxygen content, Total hardness, and Total dissolved solids. The study reveals that there was an increase in all the parameters nearing the sea. It was observed that the main cause of deterioration in water quality was due to the lack of proper sanitation, unprotected canal sites, high anthropogenic activities, discharge of domestic effluents and intrusion of sea water.