Cleanest Lakes in Otter Tail County, Minnesota
Eagle Lake in Otter Tail County leads the rankings with a water quality grade of A and 22.6 ft of clarity. Below are the top 50 cleanest monitored lakes in Otter Tail County, Minnesota, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Eagle Lake | Otter Tail | A | 22.6 ft | 5 µg/L | - |
| 2 | Star Lake | Otter Tail | A | 17 ft | 13 µg/L | - |
| 3 | Fish Lake | Otter Tail | A | 18 ft | 12 µg/L | - |
| 4 | Bass Lake | Otter Tail | A | 17.4 ft | 14 µg/L | - |
| 5 | Pelican Lake | Otter Tail | A | 16.4 ft | 15 µg/L | - |
| 6 | Unnamed Lake | Otter Tail | A | 15.1 ft | 9 µg/L | - |
| 7 | Big Mcdonald Lake | Otter Tail | A | 17.4 ft | 11.5 µg/L | - |
| 8 | Lizzie Lake | Otter Tail | A | 16.4 ft | 13 µg/L | - |
| 9 | West Battle Lake | Otter Tail | A | 18 ft | 8 µg/L | - |
| 10 | Little Mcdonald Lake | Otter Tail | A | 26.5 ft | 7 µg/L | - |
| 11 | Stuart Lake | Otter Tail | A | 17.5 ft | 12 µg/L | - |
| 12 | Scalp Lake | Otter Tail | A | 20 ft | 9 µg/L | - |
| 13 | Elbow Lake | Otter Tail | A | 18 ft | 12 µg/L | - |
| 14 | West Silent Lake | Otter Tail | A | 18 ft | 8 µg/L | - |
| 15 | Sybil Lake | Otter Tail | A | 20 ft | 9 µg/L | - |
| 16 | Kerbs Lake | Otter Tail | A | 27.7 ft | 7 µg/L | - |
| 17 | Six Lake | Otter Tail | A | 21 ft | 7 µg/L | - |
| 18 | East Silent Lake | Otter Tail | A | 19.2 ft | 9.5 µg/L | - |
| 19 | Jewett Lake | Otter Tail | A | 17.7 ft | 15 µg/L | - |
| 20 | Mule Lake | Otter Tail | A | 17.1 ft | 8 µg/L | - |
| 21 | Round Lake | Otter Tail | A | 11.2 ft | 19 µg/L | - |
| 22 | Long Lake | Otter Tail | A | 12.1 ft | 19.5 µg/L | - |
| 23 | Long Lake | Otter Tail | A | 11.6 ft | 17 µg/L | - |
| 24 | East Loon Lake | Otter Tail | A | 13.5 ft | 13 µg/L | - |
| 25 | Marion Lake | Otter Tail | A | 11 ft | 18 µg/L | - |
| 26 | Pickerel Lake | Otter Tail | A | 14.1 ft | 12 µg/L | - |
| 27 | Clitherall Lake | Otter Tail | A | 14.1 ft | 9 µg/L | - |
| 28 | Devil'S Lake | Otter Tail | A | 14.5 ft | 14 µg/L | - |
| 29 | Blanche Lake | Otter Tail | A | 12.5 ft | 11 µg/L | - |
| 30 | Silver Lake | Otter Tail | A | 12.1 ft | 16 µg/L | - |
| 31 | Swan Lake | Otter Tail | A | 12.1 ft | 18 µg/L | - |
| 32 | Trowbridge Lake | Otter Tail | A | 13.5 ft | 16 µg/L | - |
| 33 | East Battle Lake | Otter Tail | A | 13.1 ft | 12 µg/L | - |
| 34 | Little Pelican Lake | Otter Tail | A | 11.5 ft | 17 µg/L | - |
| 35 | Otter Tail Lake | Otter Tail | A | 12.1 ft | 16 µg/L | - |
| 36 | Franklin Lake | Otter Tail | A | 13.1 ft | 17 µg/L | - |
| 37 | Wimer Lake | Otter Tail | A | 10.2 ft | 18.5 µg/L | - |
| 38 | Pebble Lake | Otter Tail | A | 13 ft | 16 µg/L | - |
| 39 | Boedigheimer Lake | Otter Tail | A | 10.2 ft | 18.5 µg/L | - |
| 40 | Leek Lake | Otter Tail | A | 13.1 ft | 15 µg/L | - |
| 41 | Paul Lake | Otter Tail | A | 13.3 ft | 15 µg/L | - |
| 42 | Long Lake | Otter Tail | B | 12.3 ft | 20 µg/L | - |
| 43 | Dead Lake | Otter Tail | B | 10.2 ft | 20 µg/L | - |
| 44 | Prairie Lake | Otter Tail | B | 8.9 ft | 18 µg/L | - |
| 45 | Deer Lake | Otter Tail | B | 12.3 ft | 21 µg/L | - |
| 46 | Lida Lake | Otter Tail | B | 14 ft | 21 µg/L | - |
| 47 | Crystal Lake | Otter Tail | B | 10.2 ft | 20 µg/L | - |
| 48 | Crane Lake | Otter Tail | B | 9 ft | 15 µg/L | - |
| 49 | South Turtle Lake | Otter Tail | B | 14.1 ft | 20 µg/L | - |
| 50 | Ten Mile Lake | Otter Tail | B | 13.6 ft | 24 µg/L | - |