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LakeGrade
A

Lake Superior Ngl20_wi

Douglas County, Wisconsin

Water Quality Grade: AExcellent

Crystal clear — you can see 91.2 feet down. Phosphorus level: 3 µg/L.

MetricValueGrade
Water Clarity (Secchi Depth)27.8 mA
Phosphorus3 µg/LA
Chlorophyll-a (Algae)No data

County Ranking

Ranked #22 of 70 lakes in Douglas County

Data Sources

Data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2021-08-04

Monitoring stations: 1