In the present study, seasonal variations in the ionic levels such as phosphate, nitrate, carbonate, bicarbonate and chloride in relation to few physico-chemical parameters in the surface water samples of Kundavada lake of Davangere district (Karnataka) of the study area caused by natural and human anthropogenic activities are studied during 2016-2017. The analysis showed that the lake is included under mesotrophic category and needs certain degree of treatment and it also protected from the possible source of contamination.