Question 1

Cleanest Lakes in Lake of the Woods County, Minnesota?

Accepted Answer

Big Traverse Bay Lake in Lake of the Woods County leads the rankings on measured clarity and nutrients and 4 ft of clarity. Below are the top 4 cleanest monitored lakes in Lake of the Woods County, Minnesota, ranked on EPA nutrient and algae measurements.

Question 2

What is the cleanest lake in Lake of the Woods County, Minnesota?

Accepted Answer

Big Traverse Bay Lake in Lake of the Woods County has the cleanest nutrient and algae readings in Lake of the Woods County, Minnesota, with 4 feet of measured water clarity.

Question 3

How are these rankings calculated?

Accepted Answer

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.

#	Lake	County	Clarity	Phosphorus	Algae
1	Big Traverse Bay Lake	Lake of the Woods	4 ft	33.5 µg/L	13.7 µg/L
2	Low Lake	Lake of the Woods	5.4 ft	28 µg/L	8.8 µg/L
3	Winter Road Lake	Lake of the Woods	-	-	-
4	Lost Lake	Lake of the Woods	-	-	-

Cleanest Lakes in Lake of the Woods County, Minnesota

Ranked List

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