Metals · 2025
Calcium in Riverside, City of, CA tap water
Riverside, City of, CA's 2025 report shows Calcium detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Distribution | 85 MG/L | None set |
Highest single sample Source water | 110 MG/L | None set |
Highest single sample Entry point | 94 MG/L | None set |
Average Distribution | 31.596153846153847 MG/L | None set |
Average Source water | 32.72560975609756 MG/L | None set |
Average Entry point | 34.75 MG/L | None set |
Verbatim from Riverside, City of, CA's 2025 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 2025 Consumer Confidence Report lists Calcium at 34.75 MG/L. Riverside, City of, CA's 2025 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 2025 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/2025/source.