The cations and anions must be equal to maintain the quality of water. Cations such as Ca2+ , Mg2+, Na+ and K+ are present in ground water in the form of hardness and salinity. The major ions responsible to maintain the quality of ground water are carbonate, bicarbonate, chloride, sulphates, nitrates, phosphates and fluoride. Physico-chemical parameters of borewell near the pravara canal, Loni were studied. The study was made in the month of May - 2007 and Sept. 2007. Eight sampling points were selected for the study.