Metals · 2026
Calcium in Riverside, City of, CA tap water
Riverside, City of, 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 Entry point | 34.47222222222222 MG/L | None set |
Average Distribution | 31.15 MG/L | None set |
Highest single sample Source water | 76 MG/L | None set |
Average Source water | 28 MG/L | None set |
Highest single sample Entry point | 95 MG/L | None set |
Highest single sample Distribution | 68 MG/L | None set |
Verbatim from Riverside, City of, 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 Riverside, City of, CA compares
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People also ask
+Is there Calcium in Riverside, City of, CA tap water?
Yes — Riverside, City of, CA's 2026 Consumer Confidence Report lists Calcium at 34.47222222222222 MG/L. Riverside, City of, 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 Riverside, 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/riverside/2026/source.