Cleanest Lakes in Koochiching County, Minnesota
Battle Lake in Koochiching County leads the rankings with a water quality grade of C and 6 ft of clarity. Below are the top 3 cleanest monitored lakes in Koochiching County, Minnesota, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Battle Lake | Koochiching | C | 6 ft | 29 µg/L | - |
| 2 | Bartlett Lake | Koochiching | C | 4.5 ft | 31.5 µg/L | - |
| 3 | Dark Lake | Koochiching | D | 6.4 ft | 139.5 µg/L | - |