1
ASu13 Lake
Keweenaw County, Wisconsin · 6.3 mi from Lake Ahmik
- +Higher grade (B → A)
- ++27.9 ft water clarity
Cleaner Lakes Than Lake Ahmik
2 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Lake Ahmik carries a Grade B (Good) water quality score. Within 30 miles, 2 lakes hold a higher grade. Su13 Lake (Keweenaw County, Grade A, 6.3 mi away) is the closest meaningful upgrade.
2
ASargent Lake
Keweenaw County, Wisconsin · 6.8 mi from Lake Ahmik
- +Higher grade (B → A)
- ++3.4 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.