Cleanest Lakes in Morton County, North Dakota
Nygren Dam Lake in Morton County leads the rankings with a water quality grade of D and 2.6 ft of clarity. Below are the top 3 cleanest monitored lakes in Morton County, North Dakota, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Nygren Dam Lake | Morton | D | 2.6 ft | - | 24.7 µg/L |
| 2 | Sweetbriar Dam Lake | Morton | F | 3 ft | - | 54 µg/L |
| 3 | Sweet Briar Dam-Mid Reservoir | Morton | F | 3 ft | - | 36.9 µg/L |