PFAS ("forever chemicals") · 2024
Perfluorohexanesulfonic acid in Thornton, CO tap water
Thornton, CO's 2024 Perfluorohexanesulfonic acid measurement is below the federal limit of 10 ng/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range System-wide | 0.1–0.3 ng/L | 10 ng/L MCL |
Verbatim from Thornton, CO'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 Thornton, CO compares
Nearby systems also reporting Perfluorohexanesulfonic acid:
People also ask
+Is there Perfluorohexanesulfonic acid in Thornton, CO tap water?
Yes — Thornton, CO's 2024 Consumer Confidence Report lists Perfluorohexanesulfonic acid at 0.1–0.3 ng/L. Thornton, CO's 2024 Perfluorohexanesulfonic acid measurement is below the federal limit of 10 ng/L (MCL).
+What's the federal limit for Perfluorohexanesulfonic acid in drinking water?
The federal MCL for Perfluorohexanesulfonic acid is 10 ng/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+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.
+Where does this Perfluorohexanesulfonic acid measurement come from?
This page reproduces the Perfluorohexanesulfonic acid entry from the 2024 Consumer Confidence Report published by the Thornton, CO 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/co/thornton/2024/source.