Akgöl and Gebekirse lakes are within the boundaries of Selçuk district of İzmir province. The lakes are used in agricultural irrigation in the Küçük Menderes Basin. Since the Küçük Menderes Basin is an important agricultural region, it is important to know and monitor the quality parameters of water used in agricultural irrigation. The some physico-chemical properties of Akgöl and Gebekirse lakes (temperature, pH, total dissolved substance, conductivity, salinity, ortho phosphate phosphorus, anionic detergent, boron, ammonium nitrogen, nitrite nitrogen, nitrate nitrogen) were determined in this study. When the mean values were compared with the criteria values specified in the Aboveground Water Quality Regulation, it was determined that both lake waters were second quality (less polluted water) in terms of ortho phosphate phosphorus and nitrite parameters. It was found that Akgöl was the second quality (less polluted water), Gebekirse Lake was the third quality (polluted water) in terms of conductivity parameter. In addition, Gebekirse Lake was the second quality (less polluted water) in terms of anionic detergent parameter. According to the irrigation water criteria, temperature, pH, boron, nitrate and ammonium mean concentrations were below the limit values and both lake waters were first class irrigation water in terms of these parameters.