Metals · 2023

Magnesium in Los Angeles LADWP, CA tap water

Detected — no federal limit

Los Angeles LADWP, CA's 2023 report shows Magnesium detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Average
Los Angeles Aqueduct Filtration Plant
8.3 mg/L
Range
Los Angeles Aqueduct Filtration Plant
7.6–9.2 mg/L
Average
Northern Combined Wells
8.3 mg/L
Range
Northern Combined Wells
6.3–12.9 mg/L
Average
Southern Combined Wells
11.1 mg/L
Range
Southern Combined Wells
8.3–15 mg/L
Average
MWD Weymouth Plant
26 mg/L
Range
MWD Weymouth Plant
23–29 mg/L
Average
MWD Diemer Plant
26 mg/L
Range
MWD Diemer Plant
22–29 mg/L
Average
MWD Jensen Plant
14 mg/L
Range
MWD Jensen Plant
13–14 mg/L

Verbatim from Los Angeles LADWP, CA's 2023 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 Los Angeles LADWP, CA compares

Nearby systems also reporting Magnesium:

People also ask

+Is there Magnesium in Los Angeles LADWP, CA tap water?

Yes — Los Angeles LADWP, CA's 2023 Consumer Confidence Report lists Magnesium at 26 mg/L. Los Angeles LADWP, CA's 2023 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 2023 Consumer Confidence Report published by the Los Angeles LADWP, 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/los-angeles-ladwp/2023/source.

Full report
All Los Angeles LADWP, CA water-quality data →
Every contaminant measured in the 2023 report.
Contaminant pillar
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Every public water system measuring Magnesium, ranked.