Fayette County, IA
drinking water quality
19,152 residents · 23 public water systems · 15 ZIP codes
EPA sampled 2 of 23 public water systems here, together serving about 6,506 people. Last sampled 6/2/2025.
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 Fayette County
50606 · 50655 · 50662 · 50664 · 50671 · 50681 · 52135 · 52141 · 52142 · 52147 · 52164 · 52166 · 52169 · 52171 · 52175
Readings are county-level, so every ZIP here shares the figure above. Search your ZIP on the map to see it in context.