PFAS ("forever chemicals") · 2026

Perfluorodecanoic acid (PFDA) in Riverside, City of, CA tap water

Detected — no federal limit

Riverside, City of, CA's 2026 report shows Perfluorodecanoic acid (PFDA) detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Highest single sample
Entry point
Not detected NG/L
Average
Source water
0.9395348837209302 NG/L
Highest single sample
Source water
2.2 NG/L

Verbatim from Riverside, City of, CA's 2026 Consumer Confidence Report — source document ↗

About Perfluorodecanoic acid (PFDA)

Perfluorodecanoic acid, a longer-chain PFAS 'forever chemical.'

Monitored under EPA rules; persistent and bioaccumulative.

How Riverside, City of, CA compares

Nearby systems also reporting Perfluorodecanoic acid (PFDA):

People also ask

+Is there Perfluorodecanoic acid (PFDA) in Riverside, City of, CA tap water?

Yes — Riverside, City of, CA's 2026 Consumer Confidence Report lists Perfluorodecanoic acid (PFDA) at 0.9395348837209302 NG/L. Riverside, City of, CA's 2026 report shows Perfluorodecanoic acid (PFDA) detected, but the EPA has not set an enforceable federal limit for it.

+What's the federal limit for Perfluorodecanoic acid (PFDA) in drinking water?

The EPA has not set an enforceable federal limit for Perfluorodecanoic acid (PFDA). Utilities still report any measured levels in their annual Consumer Confidence Report.

+What is Perfluorodecanoic acid (PFDA)?

Perfluorodecanoic acid, a longer-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent and bioaccumulative.

+Where does this Perfluorodecanoic acid (PFDA) measurement come from?

This page reproduces the Perfluorodecanoic acid (PFDA) entry from the 2026 Consumer Confidence Report published by the Riverside, City of, 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/riverside/2026/source.

Full report
All Riverside, City of, CA water-quality data →
Every contaminant measured in the 2026 report.
Contaminant pillar
Perfluorodecanoic acid (PFDA) across the U.S. →
Every public water system measuring Perfluorodecanoic acid (PFDA), ranked.