Metals · 2025
Magnesium in Brentwood, CA tap water
Brentwood, CA's 2025 report shows Magnesium detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Source water | 37.833333333333336 MG/L | None set |
Highest single sample Source water | 49 MG/L | None set |
Verbatim from Brentwood, CA's 2025 Consumer Confidence Report — source document ↗
About Magnesium
A naturally occurring mineral that contributes to water hardness.
Not federally regulated for health; affects scaling and taste.
How Brentwood, CA compares
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People also ask
+Is there Magnesium in Brentwood, CA tap water?
Yes — Brentwood, CA's 2025 Consumer Confidence Report lists Magnesium at 37.833333333333336 MG/L. Brentwood, CA's 2025 report shows Magnesium detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Magnesium in drinking water?
The EPA has not set an enforceable federal limit for Magnesium. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Magnesium?
A naturally occurring mineral that contributes to water hardness. Not federally regulated for health; affects scaling and taste.
+Where does this Magnesium measurement come from?
This page reproduces the Magnesium entry from the 2025 Consumer Confidence Report published by the Brentwood, 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/brentwood/2025/source.