PFAS ("forever chemicals") · 2025
Perfluorobutanesulfonic acid in Lees Summit, MO tap water
Lees Summit, MO's 2025 report shows Perfluorobutanesulfonic acid detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range System-wide | 0–0.85 | None set |
Reported level Water System Name | 2 | None set |
Range System-wide | 0–0.89 | None set |
Maximum System-wide | 0.89 | None set |
Highest single sample Sampled Result | 0.85 | None set |
Verbatim from Lees Summit, MO's 2025 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 Lees Summit, MO 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 Lees Summit, MO tap water?
Yes — Lees Summit, MO's 2025 Consumer Confidence Report lists Perfluorobutanesulfonic acid at 2. Lees Summit, MO's 2025 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 2025 Consumer Confidence Report published by the Lees Summit, MO 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/mo/lees-summit/2025/source.