What is the cleanest lake in Graves County, Kentucky?

Shotgun Lake in Graves County is the highest-rated lake in Graves County, Kentucky 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 Graves County, Kentucky

Shotgun Lake in Graves County leads the rankings with a water quality grade of NR. Below are the top 1 cleanest monitored lakes in Graves County, Kentucky, ranked by EPA water quality score.

Ranked List

#	Lake	County	Grade	Clarity	Phosphorus	Algae
1	Shotgun Lake	Graves	NR	-	-	-

Ranked List

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