Cleanest Lakes in Fond du Lac County, Wisconsin
Long Lake in Fond du Lac County leads the rankings with a water quality grade of A and 32.8 ft of clarity. Below are the top 8 cleanest monitored lakes in Fond du Lac County, Wisconsin, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Long Lake | Fond du Lac | A | 32.8 ft | 19.3 µg/L | - |
| 2 | De Neveu Lake | Fond du Lac | A | 39.4 ft | 18.1 µg/L | - |
| 3 | Kettle Moraine Lake | Fond du Lac | A | 36.1 ft | 16.2 µg/L | - |
| 4 | Forest Lake | Fond du Lac | A | 45.9 ft | 14.2 µg/L | - |
| 5 | Auburn Lake | Fond du Lac | A | 24.6 ft | 24.4 µg/L | - |
| 6 | Mauthe Lake | Fond du Lac | B | 19.4 ft | 54 µg/L | - |
| 7 | Wolf Lake | Fond du Lac | B | 18 ft | 35 µg/L | - |
| 8 | Bernice Lake | Fond du Lac | B | 21.3 ft | 74.9 µg/L | - |