PFAS ("forever chemicals") · 2024
Perfluorohexanesulfonic acid in Downey, CA tap water
Downey, CA's 2024 Perfluorohexanesulfonic acid measurement is below the federal limit.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average System-wide | 4.8 ng/L | None set |
Range System-wide | 0–7.7 ng/L | None set |
Verbatim from Downey, CA's 2024 Consumer Confidence Report — source document ↗
About Perfluorohexanesulfonic acid
Perfluorohexanesulfonic acid, a PFAS 'forever chemical.'
Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
How Downey, CA compares
5 of the 284 systems measuring Perfluorohexanesulfonic acid on The Water Map have it at or above the federal limit:
Nearby systems also reporting Perfluorohexanesulfonic acid:
People also ask
+Is there Perfluorohexanesulfonic acid in Downey, CA tap water?
Yes — Downey, CA's 2024 Consumer Confidence Report lists Perfluorohexanesulfonic acid at 4.8 ng/L. Downey, CA's 2024 Perfluorohexanesulfonic acid measurement is below the federal limit.
+What's the federal limit for Perfluorohexanesulfonic acid in drinking water?
The EPA has not set an enforceable federal limit for Perfluorohexanesulfonic acid. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Perfluorohexanesulfonic acid?
Perfluorohexanesulfonic acid, a PFAS 'forever chemical.' Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
+Which other U.S. cities have Perfluorohexanesulfonic acid over the federal limit?
5 of the 284 systems on The Water Map measuring Perfluorohexanesulfonic acid report it at or above the federal limit. Examples include Greensboro, NC, Riverside Highland Water Company — Grand Terrace, Ca, CA, Abilene, TX.
+Where does this Perfluorohexanesulfonic acid measurement come from?
This page reproduces the Perfluorohexanesulfonic 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.