Metals · 2024
Potassium in Ontario, CA tap water
Ontario, CA's 2024 report shows Potassium detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Local Groundwater | 1.7 mg/L | None set |
Reported level Source water | 2.4 mg/L | None set |
Reported level Purchased Groundwater JCSD (870 Zone) | 2 mg/L | None set |
Reported level Purchased Groundwater CDA 1 (870 Zone) | 1.1 mg/L | None set |
Reported level Purchased Groundwater CDA 2 (1110 Zone) | 1.3 mg/L | None set |
Verbatim from Ontario, CA's 2024 Consumer Confidence Report — source document ↗
About Potassium
A naturally occurring mineral from rock and soil.
Not federally regulated for health.
How Ontario, CA compares
Nearby systems also reporting Potassium:
People also ask
+Is there Potassium in Ontario, CA tap water?
Yes — Ontario, CA's 2024 Consumer Confidence Report lists Potassium at 2.4 mg/L. Ontario, CA's 2024 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 2024 Consumer Confidence Report published by the Ontario, 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/ontario/2024/source.