PFAS ("forever chemicals") · 2026
Perfluoropentanesulfonic acid (PFPeS) in Eastern Municipal Wd, CA tap water
Eastern Municipal Wd, CA's 2026 report shows Perfluoropentanesulfonic acid (PFPeS) detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Source water | 3.3616666666666664 NG/L | None set |
Average Entry point | 3.788888888888889 NG/L | None set |
Highest single sample Source water | 26 NG/L | None set |
Highest single sample Entry point | 12 NG/L | None set |
Verbatim from Eastern Municipal Wd, CA's 2026 Consumer Confidence Report — source document ↗
About Perfluoropentanesulfonic acid (PFPeS)
Perfluoropentanesulfonic acid, a PFAS 'forever chemical.'
Monitored under EPA rules; persistent in the environment.
How Eastern Municipal Wd, CA compares
1 of the 153 systems measuring Perfluoropentanesulfonic acid (PFPeS) on The Water Map have it at or above the federal limit:
Nearby systems also reporting Perfluoropentanesulfonic acid (PFPeS):
People also ask
+Is there Perfluoropentanesulfonic acid (PFPeS) in Eastern Municipal Wd, CA tap water?
Yes — Eastern Municipal Wd, CA's 2026 Consumer Confidence Report lists Perfluoropentanesulfonic acid (PFPeS) at 3.788888888888889 NG/L. Eastern Municipal Wd, CA's 2026 report shows Perfluoropentanesulfonic acid (PFPeS) detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Perfluoropentanesulfonic acid (PFPeS) in drinking water?
The EPA has not set an enforceable federal limit for Perfluoropentanesulfonic acid (PFPeS). Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Perfluoropentanesulfonic acid (PFPeS)?
Perfluoropentanesulfonic acid, a PFAS 'forever chemical.' Monitored under EPA rules; persistent in the environment.
+Which other U.S. cities have Perfluoropentanesulfonic acid (PFPeS) over the federal limit?
1 of the 153 systems on The Water Map measuring Perfluoropentanesulfonic acid (PFPeS) report it at or above the federal limit. Examples include Boonsboro Keedysville, MD.
+Where does this Perfluoropentanesulfonic acid (PFPeS) measurement come from?
This page reproduces the Perfluoropentanesulfonic acid (PFPeS) entry from the 2026 Consumer Confidence Report published by the Eastern Municipal Wd, CA 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/ca/eastern-municipal-wd/2026/source.