Metals · 2023
Calcium in Contra Costa Water District, CA tap water
Contra Costa Water District, CA's 2023 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 Entry point | 22 MG/L | None set |
Highest single sample Distribution | 14 MG/L | None set |
Highest single sample Source water | 33 MG/L | None set |
Average Entry point | 12 MG/L | None set |
Average Distribution | 9.5 MG/L | None set |
Average Source water | 9.2 MG/L | None set |
Verbatim from Contra Costa Water District, CA's 2023 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 Contra Costa Water District, CA compares
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People also ask
+Is there Calcium in Contra Costa Water District, CA tap water?
Yes — Contra Costa Water District, CA's 2023 Consumer Confidence Report lists Calcium at 12 MG/L. Contra Costa Water District, CA's 2023 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 2023 Consumer Confidence Report published by the Contra Costa Water District, 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/contra-costa-water-district/2023/source.