PFAS ("forever chemicals") · 2023

Perfluoropentanoic acid in San Diego, City of, CA tap water

Detected — no federal limit

San Diego, City of, CA's 2023 report shows Perfluoropentanoic acid detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Average
Entry point
1.75 NG/L
Average
Source water
23.057499999999997 NG/L
Highest single sample
Entry point
2 NG/L
Highest single sample
Other
Not detected NG/L
Highest single sample
Source water
24.115 NG/L

Verbatim from San Diego, City of, CA's 2023 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 San Diego, City of, CA compares

5 of the 218 systems measuring Perfluoropentanoic acid on The Water Map have it at or above the federal limit:

Nearby systems also reporting Perfluoropentanoic acid:

People also ask

+Is there Perfluoropentanoic acid in San Diego, City of, CA tap water?

Yes — San Diego, City of, CA's 2023 Consumer Confidence Report lists Perfluoropentanoic acid at 23.057499999999997 NG/L. San Diego, City of, CA's 2023 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.

+Which other U.S. cities have Perfluoropentanoic acid over the federal limit?

5 of the 218 systems on The Water Map measuring Perfluoropentanoic acid report it at or above the federal limit. Examples include City of Poquoson, VA, Hampton, VA, York County, VA.

+Where does this Perfluoropentanoic acid measurement come from?

This page reproduces the Perfluoropentanoic acid entry from the 2023 Consumer Confidence Report published by the San Diego, 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/san-diego/2023/source.

Full report
All San Diego, City of, CA water-quality data →
Every contaminant measured in the 2023 report.
Contaminant pillar
Perfluoropentanoic acid across the U.S. →
Every public water system measuring Perfluoropentanoic acid, ranked.