PFAS ("forever chemicals") · 2025
Perfluorononanoic acid in Cal-water Service Co.-chico, CA tap water
Cal-water Service Co.-chico, CA's 2025 report shows Perfluorononanoic acid detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Source water | 2.5 NG/L | None set |
Average Source water | 1.0109243697478991 NG/L | None set |
Highest single sample Entry point | Not detected NG/L | None set |
Verbatim from Cal-water Service Co.-chico, CA's 2025 Consumer Confidence Report — source document ↗
About Perfluorononanoic acid
Perfluorononanoic acid, a PFAS 'forever chemical.'
Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
How Cal-water Service Co.-chico, CA compares
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People also ask
+Is there Perfluorononanoic acid in Cal-water Service Co.-chico, CA tap water?
Yes — Cal-water Service Co.-chico, CA's 2025 Consumer Confidence Report lists Perfluorononanoic acid at 1.0109243697478991 NG/L. Cal-water Service Co.-chico, CA's 2025 report shows Perfluorononanoic acid detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Perfluorononanoic acid in drinking water?
The EPA has not set an enforceable federal limit for Perfluorononanoic acid. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Perfluorononanoic acid?
Perfluorononanoic acid, a PFAS 'forever chemical.' Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
+Where does this Perfluorononanoic acid measurement come from?
This page reproduces the Perfluorononanoic acid entry from the 2025 Consumer Confidence Report published by the Cal-water Service Co.-chico, 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/cal-water-service-co-chico/2025/source.