PFAS ("forever chemicals") · 2024
Perfluorobutanesulfonic acid in North Charleston, SC tap water
North Charleston, SC'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 |
|---|---|---|
Reported level Aug 2018 | 3.8 ng/L | 2 ng/L NL |
Reported level Dec 2018 | 4 ng/L | 2 ng/L NL |
Reported level Feb 2019 | 3.2 ng/L | 2 ng/L NL |
Reported level May 2019 | 3.5 ng/L | 2 ng/L NL |
Reported level Oct 2020 | 2.9 ng/L | 2 ng/L NL |
Reported level Nov 2021 | 3.5 ng/L | 2 ng/L NL |
Reported level Feb 2022 | 3.8 ng/L | 2 ng/L NL |
Reported level Oct 2023 | 2.8 ng/L | 2 ng/L NL |
Reported level Jan 2024 | 2.6 ng/L | 2 ng/L NL |
Verbatim from North Charleston, SC'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 North Charleston, SC compares
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People also ask
+Is there Perfluorobutanesulfonic acid in North Charleston, SC tap water?
Yes — North Charleston, SC's 2024 Consumer Confidence Report lists Perfluorobutanesulfonic acid at 4 ng/L. North Charleston, SC'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 federal NL for Perfluorobutanesulfonic acid is 2 ng/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+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.
+Where does this Perfluorobutanesulfonic acid measurement come from?
This page reproduces the Perfluorobutanesulfonic acid entry from the 2024 Consumer Confidence Report published by the North Charleston, SC 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/sc/north-charleston/2024/source.