Physical & aggregate · 2023
Hardness in San Luis Obispo Water Department — San Luis Obispo, Ca, CA tap water
San Luis Obispo Water Department — San Luis Obispo, 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 |
|---|---|---|
Range System-wide | 126–317 mg/L | None set |
Reported level System-wide | 259 mg/L | None set |
Verbatim from San Luis Obispo Water Department — San Luis Obispo, 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 San Luis Obispo Water Department — San Luis Obispo, Ca, CA compares
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People also ask
+Is there Hardness in San Luis Obispo Water Department — San Luis Obispo, Ca, CA tap water?
Yes — San Luis Obispo Water Department — San Luis Obispo, Ca, CA's 2023 Consumer Confidence Report lists Hardness at 126–317 mg/L. San Luis Obispo Water Department — San Luis Obispo, 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 San Luis Obispo Water Department — San Luis Obispo, 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/san-luis-obispo-water-department-san-luis-obispo-ca/2023/source.