What is the cleanest lake in Owen County, Kentucky?

Lake Elmer Davis in Owen County is the highest-rated lake in Owen County, Kentucky with an EPA water quality grade of D.

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 Owen County, Kentucky

Lake Elmer Davis in Owen County leads the rankings with a water quality grade of D. Below are the top 2 cleanest monitored lakes in Owen County, Kentucky, ranked by EPA water quality score.

Ranked List

#	Lake	County	Grade	Clarity	Phosphorus	Algae
1	Lake Elmer Davis	Owen	D	-	44.6 µg/L	-
2	Elmer Davis Lake	Owen	NR	-	-	-

Ranked List

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