What is the cleanest lake in Henry County, Georgia?

Clayton County Reservoir in Henry County is the highest-rated lake in Henry County, Georgia 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 Henry County, Georgia

Clayton County Reservoir in Henry County leads the rankings with a water quality grade of NR. Below are the top 13 cleanest monitored lakes in Henry County, Georgia, ranked by EPA water quality score.

Ranked List

#	Lake	County	Grade	Clarity	Phosphorus	Algae
1	Clayton County Reservoir	Henry	NR	-	-	-
2	Swan Lake	Henry	NR	-	-	-
3	Lake Talmadge	Henry	NR	-	-	-
4	Twelve Oaks Lake	Henry	NR	-	-	-
5	Lake Twelve Oaks	Henry	NR	-	-	-
6	Harbins Lake	Henry	NR	-	-	-
7	Lake Erma	Henry	NR	-	-	-
8	Lake Cindy	Henry	NR	-	-	-
9	Painted Turtle Lake	Henry	NR	-	-	-
10	Duggan Lake	Henry	NR	-	-	-
11	Lake Dow	Henry	NR	-	-	-
12	Iris Lakes	Henry	NR	-	-	-
13	Skyland Lake	Henry	NR	-	-	-

Ranked List

More Answers for Henry County, Georgia