Metals · 2026
Calcium in Oxnard Water Dept, CA tap water
Oxnard Water Dept, 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 Distribution | 81.125 MG/L | None set |
Highest single sample Distribution | 110 MG/L | None set |
Average Source water | 132.8923076923077 MG/L | None set |
Highest single sample Entry point | 130 MG/L | None set |
Average Entry point | 90.75 MG/L | None set |
Highest single sample Source water | 340 MG/L | None set |
Verbatim from Oxnard Water Dept, 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 Oxnard Water Dept, CA compares
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People also ask
+Is there Calcium in Oxnard Water Dept, CA tap water?
Yes — Oxnard Water Dept, CA's 2026 Consumer Confidence Report lists Calcium at 132.8923076923077 MG/L. Oxnard Water Dept, 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 Oxnard Water Dept, 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/oxnard-water-dept/2026/source.