Inorganic chemicals · 2025

Ammonia in City of Vacaville, CA tap water

Detected — no federal limit

City of Vacaville, CA's 2025 report shows Ammonia detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Average
Other
0.030666666666666665 MG/L
Highest single sample
Other
0.062 MG/L

Verbatim from City of Vacaville, CA's 2025 Consumer Confidence Report — source document ↗

How City of Vacaville, CA compares

Nearby systems also reporting Ammonia:

People also ask

+Is there Ammonia in City of Vacaville, CA tap water?

Yes — City of Vacaville, CA's 2025 Consumer Confidence Report lists Ammonia at 0.030666666666666665 MG/L. City of Vacaville, CA's 2025 report shows Ammonia detected, but the EPA has not set an enforceable federal limit for it.

+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 2025 Consumer Confidence Report published by the City of Vacaville, 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/vacaville/2025/source.

Full report
All City of Vacaville, CA water-quality data →
Every contaminant measured in the 2025 report.
Contaminant pillar
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