Physical & aggregate · 2024

Hardness in Los Angeles-city, Dept. of Water & Power, CA tap water

Detected — no federal limit

Los Angeles-city, Dept. of Water & Power, CA's 2024 report shows Hardness detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Average
Entry point
340.3181818181818 MG/L
Average
Source water
323.23333333333335 MG/L
Highest single sample
Entry point
570 MG/L
Highest single sample
Source water
590 MG/L

Verbatim from Los Angeles-city, Dept. of Water & Power, CA's 2024 Consumer Confidence Report — source document ↗

About Hardness

A measure of dissolved calcium and magnesium minerals.

Not federally regulated for health; affects scaling, soap use, and taste.

How Los Angeles-city, Dept. of Water & Power, CA compares

Nearby systems also reporting Hardness:

People also ask

+Is there Hardness in Los Angeles-city, Dept. of Water & Power, CA tap water?

Yes — Los Angeles-city, Dept. of Water & Power, CA's 2024 Consumer Confidence Report lists Hardness at 340.3181818181818 MG/L. Los Angeles-city, Dept. of Water & Power, CA's 2024 report shows Hardness detected, but the EPA has not set an enforceable federal limit for it.

+What's the federal limit for Hardness in drinking water?

The EPA has not set an enforceable federal limit for Hardness. Utilities still report any measured levels in their annual Consumer Confidence Report.

+What is Hardness?

A measure of dissolved calcium and magnesium minerals. Not federally regulated for health; affects scaling, soap use, and taste.

+Where does this Hardness measurement come from?

This page reproduces the Hardness entry from the 2024 Consumer Confidence Report published by the Los Angeles-city, Dept. of Water & 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/los-angeles-city-dept-of-water-power/2024/source.

Full report
All Los Angeles-city, Dept. of Water & Power, CA water-quality data →
Every contaminant measured in the 2024 report.
Contaminant pillar
Hardness across the U.S. →
Every public water system measuring Hardness, ranked.