Physical & aggregate · 2022

Hardness in Commerce-city, Water Dept. — San Jose, Ca, CA tap water

Detected — no federal limit

Commerce-city, Water Dept. — San Jose, Ca, CA's 2022 report shows Hardness detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Average
Central Basin MWD
124 mg/L
Average
Groundwater
175 mg/L
Range
Groundwater
170–180 mg/L
Range
Central Basin MWD
81–153 mg/L

Verbatim from Commerce-city, Water Dept. — San Jose, Ca, CA's 2022 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 Commerce-city, Water Dept. — San Jose, Ca, CA compares

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People also ask

+Is there Hardness in Commerce-city, Water Dept. — San Jose, Ca, CA tap water?

Yes — Commerce-city, Water Dept. — San Jose, Ca, CA's 2022 Consumer Confidence Report lists Hardness at 175 mg/L. Commerce-city, Water Dept. — San Jose, Ca, CA's 2022 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 2022 Consumer Confidence Report published by the Commerce-city, Water Dept. — San Jose, Ca, 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/commerce-city-water-dept-san-jose-ca/2022/source.

Full report
All Commerce-city, Water Dept. — San Jose, Ca, CA water-quality data →
Every contaminant measured in the 2022 report.
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