1
BGrand Calumet Lagoon Lake
Lake County, Wisconsin · 5.2 mi from Lmg-05 Lake
- +Two grade letters higher (D → B)
Cleaner Lakes Than Lmg-05 Lake
4 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Lmg-05 Lake carries a Grade D (Poor) water quality score. Within 30 miles, 4 lakes hold a higher grade. Grand Calumet Lagoon Lake (Lake County, Grade B, 5.2 mi away) is the closest meaningful upgrade.
2
BLmg-05 Lake
Lake County, Wisconsin · 11.1 mi from Lmg-05 Lake
- +Two grade letters higher (D → B)
- ++6.2 ft water clarity
3
BLmg-03 Lake
Porter County, Wisconsin · 11.4 mi from Lmg-05 Lake
- +Two grade letters higher (D → B)
- ++1.9 ft water clarity
4
BUmk-10 Lake
Porter County, Wisconsin · 11.8 mi from Lmg-05 Lake
- +Two grade letters higher (D → B)
- ++6.1 ft water clarity
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.