1
BNorth Branch Kawishi Lake
Lake County, Minnesota · 4.4 mi from Fall Lake
- +Higher grade (C → B)
- ++2.6 ft water clarity
- +Lower phosphorus (14 vs 21 µg/L)
Cleaner Lakes Than Fall Lake
4 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Fall Lake carries a Grade C (Fair) water quality score. Within 30 miles, 4 lakes hold a higher grade. North Branch Kawishi Lake (Lake County, Grade B, 4.4 mi away) is the closest meaningful upgrade.
2
BGarden Lake
Lake County, Minnesota · 1.8 mi from Fall Lake
- +Higher grade (C → B)
- +Lower phosphorus (15 vs 21 µg/L)
3
BFarm Lake
Lake County, Minnesota · 3 mi from Fall Lake
- +Higher grade (C → B)
- +Lower phosphorus (15 vs 21 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.