Physical & aggregate · 2023
Hardness in Suburban Water Systems-san Jose — Covina, Ca, CA tap water
Suburban Water Systems-san Jose — Covina, 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 | 12.5 | None set |
Average Groundwater | 214.9 mg/L | None set |
Range Treated Surface Water | 4.4–17.7 | None set |
Average Treated Surface Water | 10.96 | None set |
Average Treated Surface Water | 187.5 mg/L | None set |
Range Groundwater | 9.3–16 | None set |
Range Treated Surface Water | 76–303 mg/L | None set |
Range Groundwater | 160–274.4 mg/L | None set |
Verbatim from Suburban Water Systems-san Jose — Covina, 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 Suburban Water Systems-san Jose — Covina, Ca, CA compares
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People also ask
+Is there Hardness in Suburban Water Systems-san Jose — Covina, Ca, CA tap water?
Yes — Suburban Water Systems-san Jose — Covina, Ca, CA's 2023 Consumer Confidence Report lists Hardness at 214.9 mg/L. Suburban Water Systems-san Jose — Covina, 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 Suburban Water Systems-san Jose — Covina, 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/suburban-water-systems-san-jose-covina-ca/2023/source.