Metals · 2026
Potassium in San Gabriel Valley Wc - Fontana, CA tap water
San Gabriel Valley Wc - Fontana, CA's 2026 report shows Potassium detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Source water | 2.1 MG/L | None set |
Highest single sample Source water | 2.1 MG/L | None set |
Verbatim from San Gabriel Valley Wc - Fontana, CA's 2026 Consumer Confidence Report — source document ↗
About Potassium
A naturally occurring mineral from rock and soil.
Not federally regulated for health.
How San Gabriel Valley Wc - Fontana, CA compares
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People also ask
+Is there Potassium in San Gabriel Valley Wc - Fontana, CA tap water?
Yes — San Gabriel Valley Wc - Fontana, CA's 2026 Consumer Confidence Report lists Potassium at 2.1 MG/L. San Gabriel Valley Wc - Fontana, CA's 2026 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 2026 Consumer Confidence Report published by the San Gabriel Valley Wc - Fontana, 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/san-gabriel-valley-wc-fontana/2026/source.