Cleanest Lakes in Watonwan County, Minnesota
St. James Lake in Watonwan County leads the rankings with a water quality grade of D and 3 ft of clarity. Below are the top 5 cleanest monitored lakes in Watonwan County, Minnesota, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | St. James Lake | Watonwan | D | 3 ft | 51 µg/L | - |
| 2 | Fedji Lake | Watonwan | D | 3.1 ft | 48 µg/L | - |
| 3 | Long Lake | Watonwan | D | 2.8 ft | 65.5 µg/L | - |
| 4 | Unnamed Lake | Watonwan | F | 1 ft | 275 µg/L | - |
| 5 | Kansas Lake | Watonwan | F | 1.6 ft | 187 µg/L | - |