Lake Tempe is currently grappling with worrisome pollution, primarily due to various activities producing wastewater nearby. These activities encompass domestic tasks, agricultural practices, and local industries. In this research, we employed a robust methodology, including lake water sampling, followed by a comprehensive analysis of the pollution index in line with the Quality Standards and Criteria for Environmental Damage, Attachment I Letter B Method for Determining Water Quality Status, as stipulated in South Sulawesi Governor Regulation No. 68 (2010). Additionally, we used the Independent Sample t-Test method for statistical analysis through S.P.S.S.