What is the cleanest lake in Ripley County, Missouri?

Fourche Creek Lake in Ripley County is the highest-rated lake in Ripley County, Missouri with an EPA water quality grade of A and 13.6 feet of water clarity.

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 Ripley County, Missouri

Fourche Creek Lake in Ripley County leads the rankings with a water quality grade of A and 13.6 ft of clarity. Below are the top 3 cleanest monitored lakes in Ripley County, Missouri, ranked by EPA water quality score.

Ranked List

#	Lake	County	Grade	Clarity	Phosphorus	Algae
1	Fourche Creek Lake	Ripley	A	13.6 ft	9.1 µg/L	1.2 µg/L
2	Ripley County Lake	Ripley	A	6.6 ft	10.7 µg/L	2.3 µg/L
3	Glen Holland Lake	Ripley	NR	-	-	-

Ranked List

More Answers for Ripley County, Missouri