View the latest Annual Water Quality Reports. Supporting Documents 2025 Wonder Lake Water Quality Report (East) 16.27 KB 2025 Wonder Lake Water Quality Report (West) 16.23 KB 2024 Wonder Lake Water Quality Report (East) 117.55 KB 2024 Wonder Lake Water Quality Report (West) 90.27 KB 2023 NIU Water Quality Report (EAST) 174.28 KB 2023 Wonder Lake Water Quality Report (WEST) 352.41 KB 2022 NIU Water Quality Report (EAST) 308.51 KB 2022 Wonder Lake Water Quality Report (WEST) 305.8 KB 2021 NIU Water Quality Report (EAST) 28.1 KB 2021 Wonder Lake Quality Report (WEST) 29.94 KB 2020 NIU Water Quality Report (EAST) 25.95 KB 2020 Wonder Lake Water Quality Report (WEST) 24.24 KB View PDF of Page
