What is the cleanest lake in Hitchcock County, Nebraska?

Swanson Reservoir in Hitchcock County is the highest-rated lake in Hitchcock County, Nebraska with an EPA water quality grade of B and 2.6 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 Hitchcock County, Nebraska

Swanson Reservoir in Hitchcock County leads the rankings with a water quality grade of B and 2.6 ft of clarity. Below are the top 1 cleanest monitored lakes in Hitchcock County, Nebraska, ranked by EPA water quality score.

Ranked List

#	Lake	County	Grade	Clarity	Phosphorus	Algae
1	Swanson Reservoir	Hitchcock	B	2.6 ft	90 µg/L	7.1 µg/L

Ranked List

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