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LakeQuality

Cleaner Lakes Than Lotus Lake

3 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.

Lotus Lake carries a Grade C (Fair) water quality score. Within 30 miles, 3 lakes hold a higher grade. Ann Lake (Carver County, Grade B, 1.7 mi away) is the closest meaningful upgrade.

1
B

Ann Lake

Carver County, Minnesota · 1.7 mi from Lotus Lake
  • +Higher grade (C → B)
  • ++4.9 ft water clarity
  • +Lower phosphorus (28 vs 42 µg/L)
2
C

Round Lake

Hennepin County, Minnesota · 1.6 mi from Lotus Lake
  • +Higher overall water quality score
  • ++3.1 ft water clarity
  • +Lower phosphorus (28 vs 42 µg/L)
3
C

Rice Marsh Lake

Hennepin County, Minnesota · 1.3 mi from Lotus Lake
  • +Higher overall water quality score
  • ++3.4 ft water clarity
  • +Lower phosphorus (34 vs 42 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.