1
ASpirit Lake
Wadena County, Minnesota · 5.2 mi from Upper Twin Lake
- +Higher grade (B → A)
- ++8.5 ft water clarity
- +Lower phosphorus (12 vs 26 µg/L)
Cleaner Lakes Than Upper Twin Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Upper Twin Lake carries a Grade B (Good) water quality score. Within 30 miles, 5 lakes hold a higher grade. Spirit Lake (Wadena County, Grade A, 5.2 mi away) is the closest meaningful upgrade.
2
AHinds Lake
Hubbard County, Minnesota · 2.2 mi from Upper Twin Lake
- +Higher grade (B → A)
- ++6.9 ft water clarity
- +Lower phosphorus (11 vs 26 µg/L)
3
AMoran Lake
Hubbard County, Minnesota · 3.5 mi from Upper Twin Lake
- +Higher grade (B → A)
- ++4.9 ft water clarity
- +Lower phosphorus (16 vs 26 µg/L)
4
ADuck Lake
Hubbard County, Minnesota · 5.8 mi from Upper Twin Lake
- +Higher grade (B → A)
- ++3.3 ft water clarity
- +Lower phosphorus (16 vs 26 µg/L)
5
ABig Stony Lake
Hubbard County, Minnesota · 6.7 mi from Upper Twin Lake
- +Higher grade (B → A)
- ++3.4 ft water clarity
- +Lower phosphorus (11 vs 26 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.