Observed arrival · 2026-09-04
The Minnesota PFAS Water Map
An evidence map joining Minnesota water contamination records with fish-consumption advisories and gaps in PFAS testing.
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The map combines records from MPCA, MDH, DNR, USGS, and EPA, then presents lake and river markers with evidence in each popup. Its guidance scale starts from MDH fish-consumption advice and documents project-specific reductions for upstream PFAS, fish-tissue listings, or contamination sources where only mercury was checked. The page reports 95 groundwater sites above a health standard, while 935 lakes and 4,305 river miles remain without PFAS fish testing.
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