1
BCatherine Lake
Lake County, Wisconsin · 1.6 mi from Marie Lake
- +Two grade letters higher (D → B)
- ++4.7 ft water clarity
- +Lower phosphorus (27.5 vs 69 µg/L)
Cleaner Lakes Than Marie Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Marie Lake carries a Grade D (Poor) water quality score. Within 30 miles, 5 lakes hold a higher grade. Catherine Lake (Lake County, Grade B, 1.6 mi away) is the closest meaningful upgrade.
2
CChannel Lake
Lake County, Wisconsin · 1.1 mi from Marie Lake
- +Higher grade (D → C)
- ++5.3 ft water clarity
- +Lower phosphorus (34.5 vs 69 µg/L)
3
DGrass Lake
Lake County, Wisconsin · 2.3 mi from Marie Lake
- +Higher overall water quality score
- +Lower phosphorus (57.5 vs 69 µg/L)
4
DPetite Lake
Lake County, Wisconsin · 2.4 mi from Marie Lake
- +Higher overall water quality score
- +Lower phosphorus (36 vs 69 µg/L)
5
DFox Lake
Lake County, Wisconsin · 3.7 mi from Marie Lake
- +Higher overall water quality score
- +Lower phosphorus (43 vs 69 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.