PFAS ("forever chemicals") · 2025
Perfluoroheptanoic acid in Cary, NC tap water
Cary, NC's 2025 report shows Perfluoroheptanoic acid detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Detection | 1.1 | None set |
Range System-wide | 0–2.9 ng/L | None set |
Verbatim from Cary, NC's 2025 Consumer Confidence Report — source document ↗
About Perfluoroheptanoic acid
Perfluoroheptanoic acid, a PFAS 'forever chemical.'
Monitored under EPA rules; persistent in the environment.
How Cary, NC compares
3 of the 59 systems measuring Perfluoroheptanoic acid on The Water Map have it at or above the federal limit:
Nearby systems also reporting Perfluoroheptanoic acid:
People also ask
+Is there Perfluoroheptanoic acid in Cary, NC tap water?
Yes — Cary, NC's 2025 Consumer Confidence Report lists Perfluoroheptanoic acid at 1.1. Cary, NC's 2025 report shows Perfluoroheptanoic acid detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Perfluoroheptanoic acid in drinking water?
The EPA has not set an enforceable federal limit for Perfluoroheptanoic acid. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Perfluoroheptanoic acid?
Perfluoroheptanoic acid, a PFAS 'forever chemical.' Monitored under EPA rules; persistent in the environment.
+Which other U.S. cities have Perfluoroheptanoic acid over the federal limit?
3 of the 59 systems on The Water Map measuring Perfluoroheptanoic acid report it at or above the federal limit. Examples include Burbank, CA, Boonsboro Keedysville, MD, Pomona, CA.
+Where does this Perfluoroheptanoic acid measurement come from?
This page reproduces the Perfluoroheptanoic acid entry from the 2025 Consumer Confidence Report published by the Cary, NC 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/nc/cary/2025/source.