Cleanest Lakes in North Dakota
Wheaton Lake in Rolette County leads the rankings with a water quality grade of A and 8.5 ft of clarity. Below are the top 23 cleanest monitored lakes in North Dakota, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Wheaton Lake | Rolette | A | 8.5 ft | 26 µg/L | 5.3 µg/L |
| 2 | Jarvis Lake Center | Rolette | A | 7.7 ft | 20 µg/L | 5.9 µg/L |
| 3 | Gordon Center Lake | Rolette | B | 8.2 ft | 26.5 µg/L | 8.5 µg/L |
| 4 | Belourt Outlet Lake | Rolette | B | 3 ft | 28 µg/L | 12.5 µg/L |
| 5 | Belcourt Center Lake | Rolette | B | 3 ft | 38 µg/L | 10.7 µg/L |
| 6 | Belcourt Inlet Lake | Rolette | B | 3.3 ft | 30.5 µg/L | 10.7 µg/L |
| 7 | Free Peoples Lake | Benson | B | - | 27.6 µg/L | - |
| 8 | Fort Totten Bay Lake | Benson | B | - | 18.3 µg/L | - |
| 9 | Jamestown Reservoir | Stutsman | C | 7.2 ft | 527 µg/L | 8.6 µg/L |
| 10 | Lake Tschida | Grant | C | 4.6 ft | 33 µg/L | 10.3 µg/L |
| 11 | Devils Lake | Benson | C | 3.7 ft | 313 µg/L | 13.9 µg/L |
| 12 | Larimore Dam Lake | Grand Forks | C | 3 ft | 225 µg/L | 13.3 µg/L |
| 13 | Lake Ashtabula | Barnes | C | 3.4 ft | 291 µg/L | 3.3 µg/L |
| 14 | Lake Ashtabula | Barnes | C | 6.6 ft | 348 µg/L | 3.4 µg/L |
| 15 | Spiritwood Lake | Stutsman | C | 31 ft | 116.5 µg/L | 5.2 µg/L |
| 16 | Fordville Dam Lake | Grand Forks | C | 4.4 ft | 411 µg/L | 5.2 µg/L |
| 17 | Blacktail Dam Lake | Williams | C | 7.2 ft | 53 µg/L | 8.6 µg/L |
| 18 | Homme Dam Lake | Walsh | C | 5.7 ft | 264 µg/L | 4 µg/L |
| 19 | Nygren Dam Lake | Morton | D | 2.6 ft | 73 µg/L | 24.7 µg/L |
| 20 | Epping-Springbrook Dam-Deepest Lake | Williams | D | 4.9 ft | 689.5 µg/L | 20.4 µg/L |
| 21 | Bowman-Haley Dam Lake | Bowman | D | 3.9 ft | 96.5 µg/L | 13.2 µg/L |
| 22 | Sweetbriar Dam Lake | Morton | F | 3 ft | 353 µg/L | 54 µg/L |
| 23 | Mirror Lake | Adams | F | 2.1 ft | 388 µg/L | 31.6 µg/L |
More Answers for North Dakota
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