Metals · 2026
Calcium in San Gabriel Valley Wc - Fontana, CA tap water
San Gabriel Valley Wc - Fontana, CA's 2026 report shows Calcium detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Source water | 31.75 MG/L | None set |
Highest single sample Source water | 53.5 MG/L | None set |
Highest single sample Entry point | Not detected MG/L | None set |
Highest single sample Other | Not detected MG/L | None set |
Verbatim from San Gabriel Valley Wc - Fontana, CA's 2026 Consumer Confidence Report — source document ↗
About Calcium
A naturally occurring mineral that contributes to water hardness.
Not federally regulated for health; affects scaling and taste.
How San Gabriel Valley Wc - Fontana, CA compares
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People also ask
+Is there Calcium in San Gabriel Valley Wc - Fontana, CA tap water?
Yes — San Gabriel Valley Wc - Fontana, CA's 2026 Consumer Confidence Report lists Calcium at 31.75 MG/L. San Gabriel Valley Wc - Fontana, CA's 2026 report shows Calcium detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Calcium in drinking water?
The EPA has not set an enforceable federal limit for Calcium. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Calcium?
A naturally occurring mineral that contributes to water hardness. Not federally regulated for health; affects scaling and taste.
+Where does this Calcium measurement come from?
This page reproduces the Calcium 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.