What is the cleanest lake in Liberty County, Montana?

Bingham Lake in Liberty County is the highest-rated lake in Liberty County, Montana with an EPA water quality grade of NR.

How are these rankings calculated?

Lakes are graded A through F on nutrients and algae — total phosphorus, nitrogen, chlorophyll-a, and turbidity — against EPA National Lakes Assessment 2022 condition classes for that lake’s ecoregion. Water clarity (Secchi depth) is measured and shown; it is not the letter. Lakes without enough recent samples are UNRATED, not given an F. Source data comes from the EPA Water Quality Portal.

Cleanest Lakes in Liberty County, Montana

Bingham Lake in Liberty County leads the rankings with a water quality grade of NR. Below are the top 6 cleanest monitored lakes in Liberty County, Montana, ranked by EPA water quality score.

Ranked List

#	Lake	County	Grade	Clarity	Phosphorus	Algae
1	Bingham Lake	Liberty	NR	-	-	-
2	Rehal Flat	Liberty	NR	-	-	-
3	Walden Reservoir	Liberty	NR	-	-	-
4	Romain Reservoir	Liberty	NR	-	-	-
5	Lake Elwell	Liberty	NR	-	-	-
6	Bourpe and Hamilton Reservoir	Liberty	NR	-	-	-

Ranked List

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