1
ABeasley Lake
Waupaca County, Wisconsin · mi from Otter Lake
- +Higher grade (B → A)
- ++10.4 ft water clarity
Cleaner Lakes Than Otter Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Otter Lake carries a Grade B (Good) water quality score. Within 30 miles, 5 lakes hold a higher grade. Beasley Lake (Waupaca County, Grade A, null mi away) is the closest meaningful upgrade.
2
ATaylor Lake
Waupaca County, Wisconsin · mi from Otter Lake
- +Higher grade (B → A)
- ++2 ft water clarity
- +Lower phosphorus (12.3 vs 17.8 µg/L)
3
AColumbia Lake
Waupaca County, Wisconsin · mi from Otter Lake
- +Higher grade (B → A)
- ++3 ft water clarity
- +Lower phosphorus (12.2 vs 17.8 µg/L)
4
ALong Lake
Waupaca County, Wisconsin · mi from Otter Lake
- +Higher grade (B → A)
- ++5 ft water clarity
- +Lower phosphorus (12.4 vs 17.8 µg/L)
5
AShadow Lake
Waupaca County, Wisconsin · mi from Otter Lake
- +Higher grade (B → A)
- ++4 ft water clarity
- +Lower phosphorus (11.9 vs 17.8 µg/L)
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.