Cleanest Lakes in Duchesne County, Utah
Nla Lake in Duchesne County leads the rankings with a water quality grade of A and 15.9 ft of clarity. Below are the top 8 cleanest monitored lakes in Duchesne County, Utah, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Nla Lake | Duchesne | A | 15.9 ft | - | 1.5 µg/L |
| 2 | Starvation Reservoir | Duchesne | A | 11.2 ft | - | 1.4 µg/L |
| 3 | Big Sand Wash Reservoir | Duchesne | A | 10.7 ft | - | 2.3 µg/L |
| 4 | Red Creek Reservoir | Duchesne | A | 14.4 ft | - | 2.9 µg/L |
| 5 | Nla Lake | Duchesne | B | 8.9 ft | - | 2 µg/L |
| 6 | Moon Lake | Duchesne | B | 9.5 ft | - | 2.7 µg/L |
| 7 | Upper Stillwater Reservoir | Duchesne | B | 8.7 ft | - | 2.8 µg/L |
| 8 | Nla Lake | Duchesne | C | 6.1 ft | - | 7.4 µg/L |