Physical & aggregate · 2021
Hardness in Walnut Valley Water District — Walnut, Ca, CA tap water
Walnut Valley Water District — Walnut, 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 |
|---|---|---|
Range Metropolitan Water District of Southern California | 277–281 mg/L | None set |
Reported level Three Valleys Municipal Water District (Miramar Plant Effluent) | 82 mg/L | None set |
Reported level Metropolitan Water District of Southern California | 279 mg/L | None set |
Verbatim from Walnut Valley Water District — Walnut, 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 Walnut Valley Water District — Walnut, Ca, CA compares
Nearby systems also reporting Hardness:
People also ask
+Is there Hardness in Walnut Valley Water District — Walnut, Ca, CA tap water?
Yes — Walnut Valley Water District — Walnut, Ca, CA's 2021 Consumer Confidence Report lists Hardness at 277–281 mg/L. Walnut Valley Water District — Walnut, 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 Walnut Valley Water District — Walnut, 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/walnut-valley-water-district-walnut-ca/2021/source.