Metals · 2025
Potassium in San Diego, City of, CA tap water
San Diego, City of, 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 |
|---|---|---|
Highest single sample Entry point | 5.42 MG/L | None set |
Average Other | 4.681666666666667 MG/L | None set |
Average Source water | 4.720000000000001 MG/L | None set |
Average Entry point | 4.725277777777778 MG/L | None set |
Highest single sample Source water | 5 MG/L | None set |
Highest single sample Other | 5.44 MG/L | None set |
Verbatim from San Diego, City of, CA's 2025 Consumer Confidence Report — source document ↗
About Potassium
A naturally occurring mineral from rock and soil.
Not federally regulated for health.
How San Diego, City of, CA compares
Nearby systems also reporting Potassium:
People also ask
+Is there Potassium in San Diego, City of, CA tap water?
Yes — San Diego, City of, CA's 2025 Consumer Confidence Report lists Potassium at 4.725277777777778 MG/L. San Diego, City of, 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 San Diego, City of, 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-diego/2025/source.