Question 1

Cleanest Lakes in Shawano County, Wisconsin?

Accepted Answer

Mission Lake in Shawano County leads the rankings with a water quality grade of A and 17.5 ft of clarity. Below are the top 24 cleanest monitored lakes in Shawano County, Wisconsin, ranked by EPA water quality score.

Question 2

What is the cleanest lake in Shawano County, Wisconsin?

Accepted Answer

Mission Lake in Shawano County is the highest-rated lake in Shawano County, Wisconsin with an EPA water quality grade of A and 17.5 feet of water clarity.

Question 3

How are these rankings calculated?

Accepted Answer

Lakes are graded A through F using the Metropolitan Council methodology, which combines Secchi depth (water clarity), total phosphorus, and chlorophyll-a (algae) into a single score. Source data comes from the EPA Water Quality Portal.

#	Lake	County	Grade	Clarity	Phosphorus	Algae
1	Mission Lake	Shawano	A	17.5 ft	17 µg/L	-
2	Round Lake	Shawano	A	11 ft	14.8 µg/L	-
3	Koonz Lake	Shawano	A	10.8 ft	12 µg/L	-
4	Korth Lake	Shawano	A	12 ft	13.5 µg/L	-
5	Pine Lake	Shawano	A	10.5 ft	13.6 µg/L	-
6	Malone Lake	Shawano	A	13.5 ft	16 µg/L	-
7	Sams Lake	Shawano	A	11 ft	18 µg/L	-
8	Bealeau Lake	Shawano	A	11.5 ft	16 µg/L	-
9	Grass Lake	Shawano	B	8.5 ft	15.7 µg/L	-
10	Big Lake	Shawano	B	8 ft	15 µg/L	-
11	Lulu Lake	Shawano	B	7 ft	16.4 µg/L	-
12	Bahr Lake	Shawano	B	6.8 ft	20.2 µg/L	-
13	Unknown Lake	Shawano	B	5 ft	14.8 µg/L	-
14	Long Lake	Shawano	C	6 ft	22.3 µg/L	-
15	Loon Lake	Shawano	C	5.5 ft	21.5 µg/L	-
16	Shawano Lake	Shawano	C	5.8 ft	29.6 µg/L	-
17	Upper Red Lake	Shawano	C	7.5 ft	39.2 µg/L	-
18	White Lake	Shawano	C	5.3 ft	32.8 µg/L	-
19	White Clay Lake	Shawano	C	5 ft	31.6 µg/L	-
20	Schoenick Lake at	Shawano	C	5 ft	45.3 µg/L	-
21	Wagner Lake	Shawano	C	4 ft	52 µg/L	-
22	Pella Lake	Shawano	D	2.5 ft	63.7 µg/L	-
23	Eddy by Pony Creek Lake	Shawano	F	0.5 ft	1370 µg/L	-
24	Tilleda Off Bridge Lake	Shawano	F	0.5 ft	525 µg/L	-

Cleanest Lakes in Shawano County, Wisconsin

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