Cleanest Lakes in Carbon County, Montana
Cooney Reservoir in Carbon County leads the rankings with a water quality grade of A and 12.5 ft of clarity. Below are the top 4 cleanest monitored lakes in Carbon County, Montana, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Cooney Reservoir | Carbon | A | 12.5 ft | 19.5 µg/L | 2.6 µg/L |
| 2 | Cooney Reservoir | Carbon | B | 9.3 ft | 15 µg/L | 2.8 µg/L |
| 3 | Cooney Reservoir | Carbon | B | 8.1 ft | 16 µg/L | - |
| 4 | Nla Lake | Carbon | B | 18.5 ft | 8000 µg/L | 1.4 µg/L |