PFAS ("forever chemicals") · 2023

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

Detected — no federal limit

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

The measurement

StatisticValue
Highest single sample
Source water
8.8088 NG/L
Average
Source water
8.2044 NG/L
Highest single sample
Other
Not detected NG/L
Highest single sample
Entry point
Not detected NG/L

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

Nearby systems also reporting Perfluorononanoic acid:

People also ask

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

Yes — San Diego, City of, CA's 2023 Consumer Confidence Report lists Perfluorononanoic acid at 8.2044 NG/L. San Diego, City of, CA's 2023 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 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
Perfluorononanoic acid across the U.S. →
Every public water system measuring Perfluorononanoic acid, ranked.