How are these rankings calculated?

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.

Cleanest Lakes in Wabasha County, Minnesota

No qualifying lakes in Wabasha County, Minnesota matched this filter.

Cleanest Lakes in Wabasha County, Minnesota

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