Metals · 2024
Boron in Ontario, CA tap water
Ontario, CA's 2024 Consumer Confidence Report tested for Boron and reported no detectable amount.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Source water | Not detected UG/L | None set |
Verbatim from Ontario, CA's 2024 Consumer Confidence Report — source document ↗
About Boron
A naturally occurring element from rock and soil.
No enforceable federal limit; the EPA has issued a health advisory level.
How Ontario, CA compares
5 of the 129 systems measuring Boron on The Water Map have it at or above the federal limit:
Nearby systems also reporting Boron:
People also ask
+Is there Boron in Ontario, CA tap water?
Ontario, CA's 2024 Consumer Confidence Report tested for Boron and found no detectable amount.
+What's the federal limit for Boron in drinking water?
The EPA has not set an enforceable federal limit for Boron. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Boron?
A naturally occurring element from rock and soil. No enforceable federal limit; the EPA has issued a health advisory level.
+Which other U.S. cities have Boron over the federal limit?
5 of the 129 systems on The Water Map measuring Boron report it at or above the federal limit. Examples include Inglewood, CA, Pomona - City, Water Dept., CA, West Covina, CA.
+Where does this Boron measurement come from?
This page reproduces the Boron entry from the 2024 Consumer Confidence Report published by the Ontario, 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/ontario/2024/source.