PFAS ("forever chemicals") · 2026
PFBA in City of Santa Ana, CA tap water
City of Santa Ana, CA's 2026 report shows PFBA detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Source water | 2.390909090909091 NG/L | None set |
Average Entry point | 3.784615384615385 NG/L | None set |
Highest single sample Entry point | 4.1 NG/L | None set |
Highest single sample Source water | 3.7 NG/L | None set |
Verbatim from City of Santa Ana, CA's 2026 Consumer Confidence Report — source document ↗
About PFBA
Perfluorobutanoic acid, a shorter-chain PFAS 'forever chemical.'
Monitored under EPA rules; persistent in the environment and the human body.
How City of Santa Ana, CA compares
5 of the 219 systems measuring PFBA on The Water Map have it at or above the federal limit:
Nearby systems also reporting PFBA:
People also ask
+Is there PFBA in City of Santa Ana, CA tap water?
Yes — City of Santa Ana, CA's 2026 Consumer Confidence Report lists PFBA at 3.784615384615385 NG/L. City of Santa Ana, CA's 2026 report shows PFBA detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for PFBA in drinking water?
The EPA has not set an enforceable federal limit for PFBA. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is PFBA?
Perfluorobutanoic acid, a shorter-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent in the environment and the human body.
+Which other U.S. cities have PFBA over the federal limit?
5 of the 219 systems on The Water Map measuring PFBA report it at or above the federal limit. Examples include City of Hampton, VA, City of Poquoson, VA, Hampton, VA.
+Where does this PFBA measurement come from?
This page reproduces the PFBA entry from the 2026 Consumer Confidence Report published by the City of Santa Ana, 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/santa-ana/2026/source.