Physical & aggregate · 2021
Hardness in Hawthorne-city Water Dept. — San Jose, Ca, CA tap water
Hawthorne-city Water Dept. — San Jose, Ca, CA's 2021 report shows Hardness detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average West Basin MWD | 194 mg/L | None set |
Average Groundwater | 236 mg/L | None set |
Range Groundwater | 200–250 mg/L | None set |
Range West Basin MWD | 107–281 mg/L | None set |
Verbatim from Hawthorne-city Water Dept. — San Jose, Ca, CA's 2021 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 Hawthorne-city Water Dept. — San Jose, Ca, CA compares
Nearby systems also reporting Hardness:
People also ask
+Is there Hardness in Hawthorne-city Water Dept. — San Jose, Ca, CA tap water?
Yes — Hawthorne-city Water Dept. — San Jose, Ca, CA's 2021 Consumer Confidence Report lists Hardness at 236 mg/L. Hawthorne-city Water Dept. — San Jose, Ca, CA's 2021 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 2021 Consumer Confidence Report published by the Hawthorne-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/hawthorne-city-water-dept-san-jose-ca/2021/source.