What is the cleanest lake in Morgan County, Missouri?

Crystal-Morgan Lake in Morgan County is the highest-rated lake in Morgan County, Missouri with an EPA water quality grade of A and 6.2 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 Morgan County, Missouri

Crystal-Morgan Lake in Morgan County leads the rankings with a water quality grade of A and 6.2 ft of clarity. Below are the top 1 cleanest monitored lakes in Morgan County, Missouri, ranked by EPA water quality score.

Ranked List

#	Lake	County	Grade	Clarity	Phosphorus	Algae
1	Crystal-Morgan Lake	Morgan	A	6.2 ft	15.5 µg/L	3.1 µg/L

Ranked List

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