1
AHolland Lake
Dakota County, Minnesota · 1.3 mi from East Thomas Lake
- +Two grade letters higher (C → A)
- ++22.7 ft water clarity
- +Lower phosphorus (20 vs 30 µg/L)
Cleaner Lakes Than East Thomas Lake
4 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
East Thomas Lake carries a Grade C (Fair) water quality score. Within 30 miles, 4 lakes hold a higher grade. Holland Lake (Dakota County, Grade A, 1.3 mi away) is the closest meaningful upgrade.
2
BCarlson Lake
Dakota County, Minnesota · 0.4 mi from East Thomas Lake
- +Higher grade (C → B)
- ++2.8 ft water clarity
3
CJensen Lake
Dakota County, Minnesota · 1.3 mi from East Thomas Lake
- +Higher overall water quality score
- +Lower phosphorus (23.5 vs 30 µg/L)
4
CThomas Lake
Dakota County, Minnesota · 0.3 mi from East Thomas Lake
- +Higher overall water quality score
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.