1
ALone Stone Lake
Oneida County, Wisconsin · 1.2 mi from Fourmile Lake
- +Higher grade (B → A)
- ++37 ft water clarity
- +Lower phosphorus (11.5 vs 28.9 µg/L)
Cleaner Lakes Than Fourmile Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Fourmile Lake carries a Grade B (Good) water quality score. Within 30 miles, 5 lakes hold a higher grade. Lone Stone Lake (Oneida County, Grade A, 1.2 mi away) is the closest meaningful upgrade.
2
ASpirit Lake
Oneida County, Wisconsin · 4.2 mi from Fourmile Lake
- +Higher grade (B → A)
- ++29.6 ft water clarity
- +Lower phosphorus (11.4 vs 28.9 µg/L)
3
ALittle Fork Lake
Oneida County, Wisconsin · 2.1 mi from Fourmile Lake
- +Higher grade (B → A)
- ++9.6 ft water clarity
- +Lower phosphorus (21.2 vs 28.9 µg/L)
4
AIsland Lake
Oneida County, Wisconsin · 2.9 mi from Fourmile Lake
- +Higher grade (B → A)
- ++13.2 ft water clarity
- +Lower phosphorus (21.5 vs 28.9 µg/L)
5
BRound Lake
Oneida County, Wisconsin · 3 mi from Fourmile Lake
- +Higher overall water quality score
- ++4.6 ft water clarity
- +Lower phosphorus (20.9 vs 28.9 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.