1
BLower Prior Lake
Scott County, Minnesota · 5.9 mi from Fish Lake
- +Higher grade (C → B)
- ++5.6 ft water clarity
- +Lower phosphorus (26.8 vs 53.2 µg/L)
Cleaner Lakes Than Fish Lake
2 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Fish Lake carries a Grade C (Fair) water quality score. Within 30 miles, 2 lakes hold a higher grade. Lower Prior Lake (Scott County, Grade B, 5.9 mi away) is the closest meaningful upgrade.
2
CSpring Lake
Scott County, Minnesota · 3.4 mi from Fish Lake
- +Higher overall water quality score
- ++3.1 ft water clarity
- +Lower phosphorus (41.9 vs 53.2 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.