Physical & aggregate · 2022
Hardness in City of Tustin — Tustin, Ca, CA tap water
City of Tustin — Tustin, Ca, CA's 2022 report shows Hardness detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average MWD Surface Water | 9.4 | None set |
Range System-wide | 5.8–41 | None set |
Average Local Groundwater | 24 | None set |
Average MWD Surface Water | 160 mg/L | None set |
Range System-wide | 99–700 mg/L | None set |
Average Local Groundwater | 415 mg/L | None set |
Verbatim from City of Tustin — Tustin, Ca, CA's 2022 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 Tustin — Tustin, Ca, CA compares
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People also ask
+Is there Hardness in City of Tustin — Tustin, Ca, CA tap water?
Yes — City of Tustin — Tustin, Ca, CA's 2022 Consumer Confidence Report lists Hardness at 415 mg/L. City of Tustin — Tustin, Ca, CA's 2022 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 2022 Consumer Confidence Report published by the City of Tustin — Tustin, 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/tustin-tustin-ca/2022/source.