PFAS ("forever chemicals") · 2024
Perfluorobutanesulfonic acid in Kent, WA tap water
Kent, WA's 2024 Consumer Confidence Report shows Perfluorobutanesulfonic acid at or above the federal limit (2 ng/L MCL). Measured value is 1.7× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level System-wide | 2.78 ng/L | 2 ng/L MCL |
Maximum System-wide | 2.17 | 2 MCL |
Range System-wide | 0–2.17 | 2 MCL |
Reported level System-wide | 3 ng/L | 2 ng/L MCL |
Reported level System-wide | 3.15 ng/L | 2 ng/L MCL |
Reported level System-wide | 3.37 ng/L | 2 ng/L MCL |
Verbatim from Kent, WA'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 Kent, WA 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 Kent, WA tap water?
Yes — Kent, WA's 2024 Consumer Confidence Report lists Perfluorobutanesulfonic acid at 3.37 ng/L. Kent, WA's 2024 Consumer Confidence Report shows Perfluorobutanesulfonic acid at or above the federal limit (2 ng/L MCL). Measured value is 1.7× the threshold.
+What's the federal limit for Perfluorobutanesulfonic acid in drinking water?
The federal MCL 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.
+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 Kent, WA 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/wa/kent/2024/source.