1
BGlendale Lake
Pope County, Wisconsin · 5.9 mi from Vienna Correctional Center Lake
- +Higher grade (C → B)
Cleaner Lakes Than Vienna Correctional Center Lake
3 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Vienna Correctional Center Lake carries a Grade C (Fair) water quality score. Within 30 miles, 3 lakes hold a higher grade. Glendale Lake (Pope County, Grade B, 5.9 mi away) is the closest meaningful upgrade.
2
BOne Horse Gap Lake
Pope County, Wisconsin · 19 mi from Vienna Correctional Center Lake
- +Higher grade (C → B)
3
BTecumseh Lake
Hardin County, Wisconsin · 24.8 mi from Vienna Correctional Center Lake
- +Higher grade (C → B)
How this list is built
Every lake on LakeQuality has a calculated grade from EPA Water Quality Portal samples — secchi depth, total phosphorus, and chlorophyll-a measured against Metropolitan Council thresholds. To suggest cleaner alternatives, we filter lakes within 30 miles to those with a strictly higher numeric score, then rank by grade improvement with a small proximity tiebreak. Cross-state and limited-data lakes are excluded so the list stays locally relevant.