Other · 2026
Tcaa in Ontario Municipal Utilities Company, CA tap water
Ontario Municipal Utilities Company, CA's 2026 report shows Tcaa detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Distribution | 4.5 UG/L | None set |
Average Distribution | 2.35 UG/L | None set |
Verbatim from Ontario Municipal Utilities Company, CA's 2026 Consumer Confidence Report — source document ↗
How Ontario Municipal Utilities Company, CA compares
Nearby systems also reporting Tcaa:
People also ask
+Is there Tcaa in Ontario Municipal Utilities Company, CA tap water?
Yes — Ontario Municipal Utilities Company, CA's 2026 Consumer Confidence Report lists Tcaa at 2.35 UG/L. Ontario Municipal Utilities Company, CA's 2026 report shows Tcaa detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Tcaa in drinking water?
The EPA has not set an enforceable federal limit for Tcaa. Utilities still report any measured levels in their annual Consumer Confidence Report.
+Where does this Tcaa measurement come from?
This page reproduces the Tcaa entry from the 2026 Consumer Confidence Report published by the Ontario Municipal Utilities Company, 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/ontario-municipal-utilities-company/2026/source.