Other · 2026
Dbaa in Contra Costa Water District, CA tap water
Contra Costa Water District, CA's 2026 report shows Dbaa detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Entry point | 2.75 UG/L | None set |
Average Distribution | 2.00875 UG/L | None set |
Highest single sample Distribution | 8.3 UG/L | None set |
Highest single sample Entry point | 2.75 UG/L | None set |
Verbatim from Contra Costa Water District, CA's 2026 Consumer Confidence Report — source document ↗
How Contra Costa Water District, CA compares
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People also ask
+Is there Dbaa in Contra Costa Water District, CA tap water?
Yes — Contra Costa Water District, CA's 2026 Consumer Confidence Report lists Dbaa at 2.75 UG/L. Contra Costa Water District, CA's 2026 report shows Dbaa detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Dbaa in drinking water?
The EPA has not set an enforceable federal limit for Dbaa. Utilities still report any measured levels in their annual Consumer Confidence Report.
+Where does this Dbaa measurement come from?
This page reproduces the Dbaa entry from the 2026 Consumer Confidence Report published by the Contra Costa Water District, 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/contra-costa-water-district/2026/source.