Cleanest Lakes in Hill County, Montana
Nla Lake in Hill County leads the rankings with a water quality grade of D and 4.2 ft of clarity. Below are the top 2 cleanest monitored lakes in Hill County, Montana, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Nla Lake | Hill | D | 4.2 ft | 339000 µg/L | 8.8 µg/L |
| 2 | Nla Lake | Hill | F | 0.8 ft | 390000 µg/L | 144.4 µg/L |