PFAS ("forever chemicals") · 2024
Perfluorobutanesulfonic acid in Winston Salem, NC tap water
Winston Salem, NC's 2024 report shows Perfluorobutanesulfonic acid detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average System-wide | 0.75 | None set |
Range System-wide | 0–2.4 | None set |
Verbatim from Winston Salem, NC's 2024 Consumer Confidence Report — source document ↗
About Perfluorobutanesulfonic acid
Perfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.'
Has no standalone limit but is part of the EPA PFAS Hazard Index that limits PFAS in combination.
How Winston Salem, NC compares
5 of the 146 systems measuring Perfluorobutanesulfonic acid on The Water Map have it at or above the federal limit:
Nearby systems also reporting Perfluorobutanesulfonic acid:
People also ask
+Is there Perfluorobutanesulfonic acid in Winston Salem, NC tap water?
Yes — Winston Salem, NC's 2024 Consumer Confidence Report lists Perfluorobutanesulfonic acid at 0.75. Winston Salem, NC's 2024 report shows Perfluorobutanesulfonic acid detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Perfluorobutanesulfonic acid in drinking water?
The EPA has not set an enforceable federal limit for Perfluorobutanesulfonic acid. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Perfluorobutanesulfonic acid?
Perfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.' Has no standalone limit but is part of the EPA PFAS Hazard Index that limits PFAS in combination.
+Which other U.S. cities have Perfluorobutanesulfonic acid over the federal limit?
5 of the 146 systems on The Water Map measuring Perfluorobutanesulfonic acid report it at or above the federal limit. Examples include Gilbert, AZ, Chula Vista Sweetwater, CA, Charleston, SC.
+Where does this Perfluorobutanesulfonic acid measurement come from?
This page reproduces the Perfluorobutanesulfonic acid entry from the 2024 Consumer Confidence Report published by the Winston Salem, 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/winston-salem/2024/source.