Metals · 2024
Calcium in California Water Service - San Mateo, CA tap water
California Water Service - San Mateo, CA's 2024 report shows Calcium detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average SFPUC Water | 15 mg/L | None set |
Range SFPUC Water | 3.2–28 mg/L | None set |
Verbatim from California Water Service - San Mateo, 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 California Water Service - San Mateo, CA compares
1 of the 214 systems measuring Calcium on The Water Map have it at or above the federal limit:
Nearby systems also reporting Calcium:
People also ask
+Is there Calcium in California Water Service - San Mateo, CA tap water?
Yes — California Water Service - San Mateo, CA's 2024 Consumer Confidence Report lists Calcium at 15 mg/L. California Water Service - San Mateo, 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.
+Which other U.S. cities have Calcium over the federal limit?
1 of the 214 systems on The Water Map measuring Calcium report it at or above the federal limit. Examples include Vancouver, WA.
+Where does this Calcium measurement come from?
This page reproduces the Calcium entry from the 2024 Consumer Confidence Report published by the California Water Service - San Mateo, 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/california-water-service-san-mateo/2024/source.