Metals · 2026
Potassium in Cal-water Service Co.-chico, CA tap water
Cal-water Service Co.-chico, 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 | 1.61375 MG/L | None set |
Highest single sample Source water | 2.9 MG/L | None set |
Verbatim from Cal-water Service Co.-chico, CA's 2026 Consumer Confidence Report — source document ↗
About Potassium
A naturally occurring mineral from rock and soil.
Not federally regulated for health.
How Cal-water Service Co.-chico, CA compares
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People also ask
+Is there Potassium in Cal-water Service Co.-chico, CA tap water?
Yes — Cal-water Service Co.-chico, CA's 2026 Consumer Confidence Report lists Potassium at 1.61375 MG/L. Cal-water Service Co.-chico, 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 Cal-water Service Co.-chico, 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/cal-water-service-co-chico/2026/source.