What is the cleanest lake in Brown County, Minnesota?

Sleepy Eye Lake in Brown County has the cleanest nutrient and algae readings in Brown County, Minnesota, with 3.3 feet of measured 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 separately. Lakes without enough recent samples are listed without a condition class rather than ranked low. Source data comes from the EPA Water Quality Portal.

Cleanest Lakes in Brown County, Minnesota

Sleepy Eye Lake in Brown County leads the rankings on measured clarity and nutrients and 3.3 ft of clarity. Below are the top 12 cleanest monitored lakes in Brown County, Minnesota, ranked on EPA nutrient and algae measurements.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Sleepy Eye Lake	Brown	3.3 ft	39.5 µg/L	18.7 µg/L
2	Clear Lake	Brown	0.8 ft	196 µg/L	92.8 µg/L
3	Wellner-Hageman Reservoir	Brown	3.7 ft	45 µg/L	30.3 µg/L
4	Hanska Lake	Brown	1 ft	219 µg/L	98.8 µg/L
5	Linden Lake	Brown	-	-	-
6	Juni Lake	Brown	-	-	-
7	School Lake	Brown	-	-	-
8	Zanders Lake	Brown	-	-	-
9	Gilman Lake	Brown	-	-	-
10	Bachelor Lake	Brown	-	-	-
11	Altermatt Lake	Brown	-	-	-
12	Boise Lake	Brown	-	-	-

Ranked List

More Answers for Brown County, Minnesota