The Rasina river begins on the slopes of the mountains Goc and Zeljin from the springs of the rivers Velika and Burmanska. After 92 km it flows into the Zapadna Morava, 5 km downstream from Krusevac, at 134m altitude. In this study, the water quality of the Rasina in the territory of Krusevac will be analyzed, 35 km downstream from the Celije artificial lake, and also the quality of its confluents like: Gaglovska river, Trmcarska river, Lomnicka river. The testing of the Rasina water quality is performed on five profiles on the river itself, and on the mouths of its larger confluents. We will also talk about effluents of Krusevac industry and their influence on the water quality of the Rasina river, and about the possibilities of effluent control and removal of potential pollutants as well.