Cleanest Lakes in Florence County, Wisconsin
Sea Lion Lake in Florence County leads the rankings with a water quality grade of A and 21 ft of clarity. Below are the top 13 cleanest monitored lakes in Florence County, Wisconsin, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Sea Lion Lake | Florence | A | 21 ft | 11.5 µg/L | - |
| 2 | Keyes Lake | Florence | A | 21 ft | 11.1 µg/L | - |
| 3 | Bass Lake | Florence | A | 12 ft | 11.6 µg/L | - |
| 4 | Ellwood Lake | Florence | A | 13 ft | 12 µg/L | - |
| 5 | Lost Lake | Florence | A | 10.6 ft | 13 µg/L | - |
| 6 | Porcupine Lake | Florence | A | 11 ft | 13 µg/L | - |
| 7 | Patten Lake | Florence | A | 10.1 ft | 15 µg/L | - |
| 8 | Frog Lake | Florence | B | 9.5 ft | 16.1 µg/L | - |
| 9 | Fay Lake | Florence | B | 7 ft | 15.5 µg/L | - |
| 10 | Morgan Lake | Florence | B | 8.6 ft | 13 µg/L | - |
| 11 | Long Lake | Florence | B | 7.2 ft | 25.2 µg/L | - |
| 12 | Halsey Lake | Florence | B | 6.2 ft | 18 µg/L | - |
| 13 | Reisner Lake | Florence | B | 6.5 ft | 18.1 µg/L | - |