Metals · 2025
Magnesium in Pasadena Water and Power, CA tap water
Pasadena Water and Power, 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 |
|---|---|---|
Highest single sample Source water | 29.5 MG/L | None set |
Average Entry point | 18.633333333333336 MG/L | None set |
Average Source water | 18.540000000000003 MG/L | None set |
Highest single sample Entry point | 21.5 MG/L | None set |
Verbatim from Pasadena Water and Power, 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 Pasadena Water and Power, CA compares
Nearby systems also reporting Magnesium:
People also ask
+Is there Magnesium in Pasadena Water and Power, CA tap water?
Yes — Pasadena Water and Power, CA's 2025 Consumer Confidence Report lists Magnesium at 18.633333333333336 MG/L. Pasadena Water and Power, 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 Pasadena Water and Power, 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/pasadena-water-and-power/2025/source.