Cleanest Lakes in Toole County, Montana
Nla Lake in Toole County leads the rankings with a water quality grade of F and 2.6 ft of clarity. Below are the top 1 cleanest monitored lakes in Toole County, Montana, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Nla Lake | Toole | F | 2.6 ft | 2170 µg/L | 28.4 µg/L |