Inorganic chemicals · 2026
Ammonia in Contra Costa Water District, CA tap water
Contra Costa Water District, CA's 2026 Consumer Confidence Report tested for Ammonia and reported no detectable amount.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Source water | Not detected MG/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 Ammonia in Contra Costa Water District, CA tap water?
Contra Costa Water District, CA's 2026 Consumer Confidence Report tested for Ammonia and found no detectable amount.
+What's the federal limit for Ammonia in drinking water?
The EPA has not set an enforceable federal limit for Ammonia. Utilities still report any measured levels in their annual Consumer Confidence Report.
+Where does this Ammonia measurement come from?
This page reproduces the Ammonia 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.