1
BAda Hayden Heritage Park Lake
Story County, Wisconsin · 13.9 mi from Little Wall Lake
- +Two grade letters higher (F → B)
- ++6.1 ft water clarity
Cleaner Lakes Than Little Wall Lake
2 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Little Wall Lake carries a Grade F (Very Poor) water quality score. Within 30 miles, 2 lakes hold a higher grade. Ada Hayden Heritage Park Lake (Story County, Grade B, 13.9 mi away) is the closest meaningful upgrade.
2
DHickory Grove Lake
Story County, Wisconsin · 23.8 mi from Little Wall Lake
- +Higher grade (F → D)
- ++2.9 ft water clarity
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.