What is the cleanest lake in Wood County, Wisconsin?

Nepco Lake in Wood County is the highest-rated lake in Wood County, Wisconsin with an EPA water quality grade of B and 10.5 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 Wood County, Wisconsin

Nepco Lake in Wood County leads the rankings with a water quality grade of B and 10.5 ft of clarity. Below are the top 6 cleanest monitored lakes in Wood County, Wisconsin, ranked by EPA water quality score.

Ranked List

#	Lake	County	Grade	Clarity	Phosphorus	Algae
1	Nepco Lake	Wood	B	10.5 ft	10.9 µg/L	-
2	Landing Lake	Wood	D	-	61.9 µg/L	-
3	Ross Lake	Wood	NR	-	-	-
4	Biron Flowage	Wood	NR	-	-	-
5	Bullgrass Flowage	Wood	NR	-	-	-
6	South Gallagher Flowage	Wood	NR	-	-	-

Ranked List

More Answers for Wood County, Wisconsin