Metals · 2025
Potassium in City of Vacaville, CA tap water
City of Vacaville, CA's 2025 report shows Potassium detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Other | 1.5666666666666667 MG/L | None set |
Average Source water | 2.1 MG/L | None set |
Highest single sample Source water | 5.5 MG/L | None set |
Highest single sample Entry point | Not detected MG/L | None set |
Highest single sample Other | 1.7 MG/L | None set |
Verbatim from City of Vacaville, CA's 2025 Consumer Confidence Report — source document ↗
About Potassium
A naturally occurring mineral from rock and soil.
Not federally regulated for health.
How City of Vacaville, CA compares
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People also ask
+Is there Potassium in City of Vacaville, CA tap water?
Yes — City of Vacaville, CA's 2025 Consumer Confidence Report lists Potassium at 2.1 MG/L. City of Vacaville, CA's 2025 report shows Potassium detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Potassium in drinking water?
The EPA has not set an enforceable federal limit for Potassium. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Potassium?
A naturally occurring mineral from rock and soil. Not federally regulated for health.
+Where does this Potassium measurement come from?
This page reproduces the Potassium 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.