What is the cleanest lake in Michigan?

Community College Pond in Chippewa County is the cleanest lake on the readings in Michigan with an EPA water-quality readings of — and 1.6 feet of water clarity.

How are these rankings calculated?

Nutrients and algae, total phosphorus, nitrogen, chlorophyll-a and turbidity, are read 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.

Lakes With Algae Readings in Michigan

4 lakes in Michigan report elevated algae levels (chlorophyll-a above 20 µg/L). These lakes are most likely to develop blue-green algae blooms during warm, calm summer weather. Avoid swimming during visible blooms and rinse pets after contact.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Community College Pond	Chippewa	—	1.6 ft	37.5 µg/L	37.3 µg/L
2	South Pond	Chippewa	—	1.4 ft	38 µg/L	25.4 µg/L
3	Palmer Lake	St. Joseph	—	2 ft	19 µg/L	21 µg/L
4	Lake Diane	Hillsdale	—	2.5 ft	51 µg/L	20 µg/L

Ranked List

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