1
ALower Vermillion Lake
Barron County, Wisconsin · 5.9 mi from Poskin Lake
- +Higher grade (B → A)
- ++16.4 ft water clarity
- +Lower phosphorus (17.4 vs 28.7 µg/L)
Cleaner Lakes Than Poskin Lake
4 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Poskin Lake carries a Grade B (Good) water quality score. Within 30 miles, 4 lakes hold a higher grade. Lower Vermillion Lake (Barron County, Grade A, 5.9 mi away) is the closest meaningful upgrade.
2
AEcho Lake
Barron County, Wisconsin · 7.7 mi from Poskin Lake
- +Higher grade (B → A)
- ++28.7 ft water clarity
- +Lower phosphorus (14.8 vs 28.7 µg/L)
3
ALoon Lake
Barron County, Wisconsin · 8.2 mi from Poskin Lake
- +Higher grade (B → A)
- ++16.4 ft water clarity
- +Lower phosphorus (18.6 vs 28.7 µg/L)
4
ABeaver Dam Lake
Barron County, Wisconsin · 8.2 mi from Poskin Lake
- +Higher grade (B → A)
- ++24.6 ft water clarity
- +Lower phosphorus (13 vs 28.7 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.