Physical & aggregate · 2023

Hardness in Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA tap water

Detected — no federal limit

Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA's 2023 report shows Hardness detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Reported level
Lake Mathews
291–296 mg/L
Reported level
Diemer Plant
256 mg/L
Reported level
Lake Skinner
172–245 mg/L
Reported level
Diemer Plant
96–306 mg/L
Reported level
Weymouth Plant
91–304 mg/L
Reported level
Lake Perris
118 mg/L
Reported level
Lake Havasu
293–319 mg/L
Reported level
Lake Mathews
294 mg/L
Reported level
Mills Plant
60–96 mg/L
Reported level
Jensen Plant
135–158 mg/L
Reported level
Silverwood Lake
84 mg/L
Reported level
Skinner Plant
166–308 mg/L
Reported level
Mills Plant
78 mg/L
Reported level
Diamond Valley Lake
104–105 mg/L
Reported level
Castaic Lake
143–149 mg/L
Reported level
Skinner Plant
244 mg/L
Reported level
Jensen Plant
145 mg/L
Reported level
Diamond Valley Lake
104 mg/L
Reported level
Weymouth Plant
254 mg/L
Reported level
Castaic Lake
146 mg/L
Reported level
Lake Havasu
306 mg/L
Reported level
Silverwood Lake
68–99 mg/L
Reported level
Lake Perris
117–120 mg/L
Reported level
Lake Skinner
208 mg/L

Verbatim from Foothill Municipal Water Dist. — La Canada Flintridge, 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 Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA compares

Nearby systems also reporting Hardness:

People also ask

+Is there Hardness in Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA tap water?

Yes — Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA's 2023 Consumer Confidence Report lists Hardness at 293–319 mg/L. Foothill Municipal Water Dist. — La Canada Flintridge, 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 Foothill Municipal Water Dist. — La Canada Flintridge, 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/foothill-municipal-water-dist-la-canada-flintridge-ca/2023/source.

Full report
All Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA water-quality data →
Every contaminant measured in the 2023 report.
Contaminant pillar
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Every public water system measuring Hardness, ranked.