Metals · 2025
Magnesium in San Jacinto, City of, CA tap water
San Jacinto, City of, CA's 2025 report shows Magnesium detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Source water | 6.6 MG/L | None set |
Average Source water | 4.9799999999999995 MG/L | None set |
Verbatim from San Jacinto, City of, CA's 2025 Consumer Confidence Report — source document ↗
About Magnesium
A naturally occurring mineral that contributes to water hardness.
Not federally regulated for health; affects scaling and taste.
How San Jacinto, City of, CA compares
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People also ask
+Is there Magnesium in San Jacinto, City of, CA tap water?
Yes — San Jacinto, City of, CA's 2025 Consumer Confidence Report lists Magnesium at 4.9799999999999995 MG/L. San Jacinto, City of, CA's 2025 report shows Magnesium detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Magnesium in drinking water?
The EPA has not set an enforceable federal limit for Magnesium. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Magnesium?
A naturally occurring mineral that contributes to water hardness. Not federally regulated for health; affects scaling and taste.
+Where does this Magnesium measurement come from?
This page reproduces the Magnesium entry from the 2025 Consumer Confidence Report published by the San Jacinto, 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-jacinto/2025/source.