1
AFinnegan Lake
Oconto County, Wisconsin · 12.4 mi from Machickanee Flowage Lake
- +Two grade letters higher (C → A)
- ++23 ft water clarity
- +Lower phosphorus (15.3 vs 33.1 µg/L)
Cleaner Lakes Than Machickanee Flowage Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Machickanee Flowage Lake carries a Grade C (Fair) water quality score. Within 30 miles, 5 lakes hold a higher grade. Finnegan Lake (Oconto County, Grade A, 12.4 mi away) is the closest meaningful upgrade.
2
AMontana Lake
Marinette County, Wisconsin · 13.8 mi from Machickanee Flowage Lake
- +Two grade letters higher (C → A)
- ++16.4 ft water clarity
- +Lower phosphorus (17.5 vs 33.1 µg/L)
3
ARound Lake
Oconto County, Wisconsin · 14.4 mi from Machickanee Flowage Lake
- +Two grade letters higher (C → A)
- ++39.4 ft water clarity
- +Lower phosphorus (13.8 vs 33.1 µg/L)
4
AKelly Lake
Oconto County, Wisconsin · 14.4 mi from Machickanee Flowage Lake
- +Two grade letters higher (C → A)
- ++24.7 ft water clarity
- +Lower phosphorus (14.3 vs 33.1 µg/L)
5
BPorcupine Lake-Deep Hole
Oconto County, Wisconsin · 10.6 mi from Machickanee Flowage Lake
- +Higher grade (C → B)
- ++8.7 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.