Physical & aggregate · 2026
Alkalinity in City of Vacaville, CA tap water
City of Vacaville, CA's 2026 report shows Alkalinity detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Other | 150 MG/L | None set |
Average Other | 100.66666666666667 MG/L | None set |
Highest single sample Source water | 230 MG/L | None set |
Average Source water | 127.54761904761905 MG/L | None set |
Verbatim from City of Vacaville, CA's 2026 Consumer Confidence Report — source document ↗
About Alkalinity
A measure of the water's capacity to neutralize acids.
Not federally regulated for health; relevant to corrosion control and treatment.
How City of Vacaville, CA compares
Nearby systems also reporting Alkalinity:
People also ask
+Is there Alkalinity in City of Vacaville, CA tap water?
Yes — City of Vacaville, CA's 2026 Consumer Confidence Report lists Alkalinity at 127.54761904761905 MG/L. City of Vacaville, CA's 2026 report shows Alkalinity detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Alkalinity in drinking water?
The EPA has not set an enforceable federal limit for Alkalinity. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Alkalinity?
A measure of the water's capacity to neutralize acids. Not federally regulated for health; relevant to corrosion control and treatment.
+Where does this Alkalinity measurement come from?
This page reproduces the Alkalinity entry from the 2026 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/2026/source.