Other · 2025
Dcaa in Contra Costa Water District, CA tap water
Contra Costa Water District, CA's 2025 report shows Dcaa detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Entry point | 5.3999999999999995 UG/L | None set |
Average Distribution | 7.702 UG/L | None set |
Highest single sample Entry point | 7.02 UG/L | None set |
Highest single sample Distribution | 13.3 UG/L | None set |
Verbatim from Contra Costa Water District, CA's 2025 Consumer Confidence Report — source document ↗
How Contra Costa Water District, CA compares
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People also ask
+Is there Dcaa in Contra Costa Water District, CA tap water?
Yes — Contra Costa Water District, CA's 2025 Consumer Confidence Report lists Dcaa at 7.702 UG/L. Contra Costa Water District, CA's 2025 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 2025 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/2025/source.