Metals · 2024

Calcium in Sunnyvale, CA tap water

Detected — no federal limit

Sunnyvale, CA's 2024 report shows Calcium detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Average
Source water
39.607142857142854 MG/L
Highest single sample
Source water
89 MG/L

Verbatim from Sunnyvale, CA's 2024 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 Sunnyvale, CA compares

Nearby systems also reporting Calcium:

People also ask

+Is there Calcium in Sunnyvale, CA tap water?

Yes — Sunnyvale, CA's 2024 Consumer Confidence Report lists Calcium at 39.607142857142854 MG/L. Sunnyvale, CA's 2024 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 2024 Consumer Confidence Report published by the Sunnyvale, 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/sunnyvale/2024/source.

Full report
All Sunnyvale, CA water-quality data →
Every contaminant measured in the 2024 report.
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Every public water system measuring Calcium, ranked.