Physical & aggregate · 2023
Hardness in City of Pleasanton — Pleasanton, Ca, CA tap water
City of Pleasanton — Pleasanton, Ca, CA's 2023 report shows Hardness detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Groundwater | 309 mg/L | None set |
Average Treated Surface Water | 86 mg/L | None set |
Range Groundwater | 108–502 mg/L | None set |
Range Treated Surface Water | 39–144 mg/L | None set |
Verbatim from City of Pleasanton — Pleasanton, Ca, CA's 2023 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 City of Pleasanton — Pleasanton, Ca, CA compares
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People also ask
+Is there Hardness in City of Pleasanton — Pleasanton, Ca, CA tap water?
Yes — City of Pleasanton — Pleasanton, Ca, CA's 2023 Consumer Confidence Report lists Hardness at 309 mg/L. City of Pleasanton — Pleasanton, Ca, CA's 2023 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 2023 Consumer Confidence Report published by the City of Pleasanton — Pleasanton, 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/pleasanton-pleasanton-ca/2023/source.