1
ASkunk Lake
Hubbard County, Minnesota · 4.2 mi from Frielund Lake
- +Higher grade (B → A)
- ++7.5 ft water clarity
Cleaner Lakes Than Frielund Lake
3 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Frielund Lake carries a Grade B (Good) water quality score. Within 30 miles, 3 lakes hold a higher grade. Skunk Lake (Hubbard County, Grade A, 4.2 mi away) is the closest meaningful upgrade.
2
ALittle Mantrap Lake
Hubbard County, Minnesota · 5.6 mi from Frielund Lake
- +Higher grade (B → A)
- ++7.5 ft water clarity
3
AGeorge Lake
Hubbard County, Minnesota · 5.1 mi from Frielund Lake
- +Higher grade (B → A)
- ++3.1 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.