PFAS ("forever chemicals") · 2024
Perfluorohexanoic acid in Piedmont, CA tap water
Piedmont, CA's 2024 Perfluorohexanoic acid measurement is below the federal limit of 1 ng/L (NL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level USL | 0–3.4 ng/L | 1 ng/L NL |
Reported level Sobrante | Not detected ng/L | 1 ng/L NL |
Average EBMUD Results System | Not detected ng/L | 1 ng/L NL |
Reported level Lafayette | Not detected ng/L | 1 ng/L NL |
Reported level Orinda | Not detected ng/L | 1 ng/L NL |
Reported level Walnut Creek | Not detected ng/L | 1 ng/L NL |
Verbatim from Piedmont, CA's 2024 Consumer Confidence Report — source document ↗
About Perfluorohexanoic acid
Perfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.'
Monitored under EPA rules; persistent and widely detected.
How Piedmont, CA compares
5 of the 134 systems measuring Perfluorohexanoic acid on The Water Map have it at or above the federal limit:
Nearby systems also reporting Perfluorohexanoic acid:
People also ask
+Is there Perfluorohexanoic acid in Piedmont, CA tap water?
Yes — Piedmont, CA's 2024 Consumer Confidence Report lists Perfluorohexanoic acid at Not detected ng/L. Piedmont, CA's 2024 Perfluorohexanoic acid measurement is below the federal limit of 1 ng/L (NL).
+What's the federal limit for Perfluorohexanoic acid in drinking water?
The federal NL for Perfluorohexanoic acid is 1 ng/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Perfluorohexanoic acid?
Perfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent and widely detected.
+Which other U.S. cities have Perfluorohexanoic acid over the federal limit?
5 of the 134 systems on The Water Map measuring Perfluorohexanoic acid report it at or above the federal limit. Examples include New Braunfels, TX, Burbank, CA, Pomona, CA.
+Where does this Perfluorohexanoic acid measurement come from?
This page reproduces the Perfluorohexanoic acid entry from the 2024 Consumer Confidence Report published by the Piedmont, 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/piedmont/2024/source.