PFAS ("forever chemicals") · 2024
PFOS in Dayton, OH tap water
Dayton, OH's 2024 report shows PFOS detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range System-wide | 5.51–15.45 ng/L | None set |
Average System-wide | 9.48 ng/L | None set |
Range System-wide | 5.51–15.45 ng/L | None set |
Average System-wide | 9.48 ng/L | None set |
Verbatim from Dayton, OH's 2024 Consumer Confidence Report — source document ↗
About PFOS
Perfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings.
Linked to cancer, thyroid disease, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
How Dayton, OH compares
5 of the 147 systems measuring PFOS on The Water Map have it at or above the federal limit:
Nearby systems also reporting PFOS:
People also ask
+Is there PFOS in Dayton, OH tap water?
Yes — Dayton, OH's 2024 Consumer Confidence Report lists PFOS at 9.48 ng/L. Dayton, OH's 2024 report shows PFOS detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for PFOS in drinking water?
The EPA has not set an enforceable federal limit for PFOS. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is PFOS?
Perfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. Linked to cancer, thyroid disease, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
+Which other U.S. cities have PFOS over the federal limit?
5 of the 147 systems on The Water Map measuring PFOS report it at or above the federal limit. Examples include Charleston, SC, North Charleston, SC, City of Hialeah, FL.
+Where does this PFOS measurement come from?
This page reproduces the PFOS entry from the 2024 Consumer Confidence Report published by the Dayton, OH water utility — the annual drinking-water report every U.S. utility is required by federal law to publish. The original source document is archived at /water/oh/dayton/2024/source.