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LakeQuality

Water quality report cards for every monitored lake across 12 states — clarity, phosphorus, algae, depth, and fish, graded A–F from EPA and state agency data.

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Data sourced from the EPA Water Quality Portal (aggregating state agencies across all 12 covered states), the MN DNR LakeFinder, and Wisconsin DNR. Grading based on Metropolitan Council standards. Not affiliated with any government agency.

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