PFAS Results by State

Source period . Recomputed by ZipCheckup from the cited federal source.

Among 10,296 water systems with PFAS results, 662 (6.4%) report an exceedance, across 57 states and U.S. jurisdictions, as of .

By state

We report two independent facts side by side and do not rank states. A larger count reflects the size of a state's inventory and its reporting activity, not a judgment about water safety.

How we compute this

We tabulate EPA UCMR5 PFAS sampling results at the water-system level and group them by state and U.S. jurisdiction. The denominator is systems that HAVE UCMR5 results; systems without sampling results are not represented, and absence from this dataset is not the same as a clean result.

States and jurisdictions are listed alphabetically. The per-state table shows the tested-system, exceedance, detection, and tested-clean counts side by side, framed as a distribution among tested systems rather than a statewide total or a ranking.

Counts recompute each build from the UCMR5 extract. This finding is the geographic cut that complements ZipCheckup's national PFAS testing-gap and detection findings.

Frequently asked questions

@misc{zipcheckup-findings-pfas-results-by-state,
  author = {{ZipCheckup}},
  title  = {{PFAS Results by State}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/findings/pfas-results-by-state/}
}