Wapello County, IA
drinking water quality
35,681 residents · 6 public water systems · 7 ZIP codes
EPA sampled 2 of 6 public water systems here, together serving about 42,792 people. EPA detected PFBA at 5 ng/L. EPA has not set a drinking water limit for PFBA, so there is no figure to compare it against. Last sampled 9/11/2023.
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 Wapello County
52501 · 52530 · 52536 · 52548 · 52553 · 52554 · 52566
Readings are county-level, so every ZIP here shares the figure above. Search your ZIP on the map to see it in context.