Cleanest Lakes in Box Elder County, Utah
Nla Lake in Box Elder County leads the rankings with a water quality grade of B and 6.5 ft of clarity. Below are the top 6 cleanest monitored lakes in Box Elder County, Utah, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Nla Lake | Box Elder | B | 6.5 ft | - | 2.1 µg/L |
| 2 | Mantua Reservoir N | Box Elder | C | 3 ft | - | 1.7 µg/L |
| 3 | Willard Bay Reservoir | Box Elder | C | 2.3 ft | - | 7.9 µg/L |
| 4 | Willard Bay Reservoir Emap | Box Elder | D | 1.1 ft | - | 13.3 µg/L |
| 5 | Mantua Reservoir S | Box Elder | D | 2.6 ft | - | 23.4 µg/L |
| 6 | Mantua Reservoir | Box Elder | F | 3 ft | - | 39.7 µg/L |