PFAS ("forever chemicals") · 2025
4:2 Fluorotelomer sulfonic acid (4:2 FTS) in Rialto, City of, CA tap water
Rialto, City of, CA's 2025 Consumer Confidence Report tested for 4:2 Fluorotelomer sulfonic acid (4:2 FTS) and reported no detectable amount.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Source water | Not detected NG/L | None set |
Verbatim from Rialto, City of, CA's 2025 Consumer Confidence Report — source document ↗
About 4:2 Fluorotelomer sulfonic acid (4:2 FTS)
4:2 fluorotelomer sulfonic acid, a PFAS-related compound.
Monitored under EPA rules as part of broad PFAS surveillance.
How Rialto, City of, CA compares
Nearby systems also reporting 4:2 Fluorotelomer sulfonic acid (4:2 FTS):
People also ask
+Is there 4:2 Fluorotelomer sulfonic acid (4:2 FTS) in Rialto, City of, CA tap water?
Rialto, City of, CA's 2025 Consumer Confidence Report tested for 4:2 Fluorotelomer sulfonic acid (4:2 FTS) and found no detectable amount.
+What's the federal limit for 4:2 Fluorotelomer sulfonic acid (4:2 FTS) in drinking water?
The EPA has not set an enforceable federal limit for 4:2 Fluorotelomer sulfonic acid (4:2 FTS). Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is 4:2 Fluorotelomer sulfonic acid (4:2 FTS)?
4:2 fluorotelomer sulfonic acid, a PFAS-related compound. Monitored under EPA rules as part of broad PFAS surveillance.
+Where does this 4:2 Fluorotelomer sulfonic acid (4:2 FTS) measurement come from?
This page reproduces the 4:2 Fluorotelomer sulfonic acid (4:2 FTS) entry from the 2025 Consumer Confidence Report published by the Rialto, City of, CA 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/ca/rialto/2025/source.