Physical & aggregate · 2024
Hardness in Fullerton, CA tap water
Fullerton, CA's 2024 report shows Hardness detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Average Amount | 14 | None set |
Range System-wide | 11–22 | None set |
Average Average Amount | 241 mg/L | None set |
Range System-wide | 195–375 mg/L | None set |
Average Diemer | 270 mg/L | None set |
Average Weymouth | 272 mg/L | None set |
Range System-wide | 235–305 mg/L | None set |
Average Diemer | 16 | None set |
Average Weymouth | 16 | None set |
Range System-wide | 14–18 | None set |
Verbatim from Fullerton, CA's 2024 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 Fullerton, CA compares
Nearby systems also reporting Hardness:
People also ask
+Is there Hardness in Fullerton, CA tap water?
Yes — Fullerton, CA's 2024 Consumer Confidence Report lists Hardness at 272 mg/L. Fullerton, CA's 2024 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 2024 Consumer Confidence Report published by the Fullerton, 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/fullerton/2024/source.