One among seven in this world dont have the luxory to have safe drinking water. As water is an essential component, ensuring the safety is very important. Providing a feasible method which is reliable and easy to deploy will help in understanding the quality of water which is used. Using wireless sensor nodes for detecting the water quality is a good option for this problem as sensor nodes are considered cheap, robust and easy to deploy. This paper designs an efficient algorithms for the placement of wireless sensor nodes which will do the purpose of water quality monitoring. National Institute of Technology, Surathkal campus has been taken as the case study for analysis.