Cleanest Lakes in Fremont County, Idaho
Island Park Lake in Fremont County leads the rankings with a water quality grade of C and 9.8 ft of clarity. Below are the top 4 cleanest monitored lakes in Fremont County, Idaho, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Island Park Lake | Fremont | C | 9.8 ft | 24 µg/L | 11.8 µg/L |
| 2 | Island Pk Reservoir | Fremont | C | 2.3 ft | 56 µg/L | 9.8 µg/L |
| 3 | Nla Lake | Fremont | D | 6.2 ft | 72 µg/L | 22 µg/L |
| 4 | Nla Lake | Fremont | D | 3.4 ft | 79000 µg/L | 27.6 µg/L |