PFAS ("forever chemicals") · 2024

Perfluoropentanoic acid in Downey, CA tap water

Detected — no federal limit

Downey, CA's 2024 report shows Perfluoropentanoic acid detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Range
System-wide
0–22 ng/L
Average
System-wide
11.5 ng/L

Verbatim from Downey, CA's 2024 Consumer Confidence Report — source document ↗

About Perfluoropentanoic acid

Perfluoropentanoic acid, a shorter-chain PFAS 'forever chemical.'

Monitored under EPA rules; persistent in the environment.

How Downey, CA compares

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People also ask

+Is there Perfluoropentanoic acid in Downey, CA tap water?

Yes — Downey, CA's 2024 Consumer Confidence Report lists Perfluoropentanoic acid at 11.5 ng/L. Downey, CA's 2024 report shows Perfluoropentanoic acid detected, but the EPA has not set an enforceable federal limit for it.

+What's the federal limit for Perfluoropentanoic acid in drinking water?

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

+What is Perfluoropentanoic acid?

Perfluoropentanoic acid, a shorter-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent in the environment.

+Where does this Perfluoropentanoic acid measurement come from?

This page reproduces the Perfluoropentanoic acid entry from the 2024 Consumer Confidence Report published by the Downey, 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/downey/2024/source.

Full report
All Downey, CA water-quality data →
Every contaminant measured in the 2024 report.
Contaminant pillar
Perfluoropentanoic acid across the U.S. →
Every public water system measuring Perfluoropentanoic acid, ranked.