PFAS ("forever chemicals") · 2021

Perfluoropentanoic acid in Walnut Valley Water District — Walnut, Ca, CA tap water

Detected — no federal limit

Walnut Valley Water District — Walnut, Ca, CA's 2021 report shows Perfluoropentanoic acid detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Reported level
Metropolitan Water District of Southern California
2 ng/L

Verbatim from Walnut Valley Water District — Walnut, Ca, CA's 2021 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 Walnut Valley Water District — Walnut, Ca, CA compares

Nearby systems also reporting Perfluoropentanoic acid:

People also ask

+Is there Perfluoropentanoic acid in Walnut Valley Water District — Walnut, Ca, CA tap water?

Yes — Walnut Valley Water District — Walnut, Ca, CA's 2021 Consumer Confidence Report lists Perfluoropentanoic acid at 2 ng/L. Walnut Valley Water District — Walnut, Ca, CA's 2021 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 2021 Consumer Confidence Report published by the Walnut Valley Water District — Walnut, Ca, 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/walnut-valley-water-district-walnut-ca/2021/source.

Full report
All Walnut Valley Water District — Walnut, Ca, CA water-quality data →
Every contaminant measured in the 2021 report.
Contaminant pillar
Perfluoropentanoic acid across the U.S. →
Every public water system measuring Perfluoropentanoic acid, ranked.