Other · 2026
Dcaa in California Water Service - San Mateo, CA tap water
California Water Service - San Mateo, CA's 2026 report shows Dcaa detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Distribution | 18 UG/L | None set |
Average Distribution | 13.9125 UG/L | None set |
Verbatim from California Water Service - San Mateo, CA's 2026 Consumer Confidence Report — source document ↗
How California Water Service - San Mateo, CA compares
Nearby systems also reporting Dcaa:
People also ask
+Is there Dcaa in California Water Service - San Mateo, CA tap water?
Yes — California Water Service - San Mateo, CA's 2026 Consumer Confidence Report lists Dcaa at 13.9125 UG/L. California Water Service - San Mateo, CA's 2026 report shows Dcaa detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Dcaa in drinking water?
The EPA has not set an enforceable federal limit for Dcaa. Utilities still report any measured levels in their annual Consumer Confidence Report.
+Where does this Dcaa measurement come from?
This page reproduces the Dcaa entry from the 2026 Consumer Confidence Report published by the California Water Service - San Mateo, 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/california-water-service-san-mateo/2026/source.