Wabasha County, MN
drinking water quality
21,574 residents · 49 public water systems · 8 ZIP codes
EPA sampled 3 of 49 public water systems here, together serving about 9,497 people. EPA detected PFBA at 8.9 ng/L. EPA has not set a drinking water limit for PFBA, so there is no figure to compare it against. Last sampled 7/30/2025.
What this means
PFAS are industrial chemicals that EPA describes as breaking down only very slowly in the environment. In April 2024 EPA set the first enforceable national limits: 4 ng/L for PFOA and PFOS, 10 ng/L for PFHxS, PFNA and GenX.
These figures are county-level and come from EPA’s sampling of public water systems. They describe the worst result found in the county, not what comes out of any particular tap — that depends on which system serves the address, and on the plumbing in the building. A private well is not covered by this programme at all.
ZIP codes in Wabasha County
55041 · 55945 · 55956 · 55957 · 55964 · 55968 · 55981 · 55991
Readings are county-level, so every ZIP here shares the figure above. Search your ZIP on the map to see it in context.