Metals · 2024
Aluminum in Ontario, CA tap water
Ontario, CA's 2024 report shows Aluminum detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Source water | 41 ug/L | None set |
Reported level Purchased Groundwater CDA 2 (1110 Zone) | 13 ug/L | None set |
Verbatim from Ontario, CA's 2024 Consumer Confidence Report — source document ↗
About Aluminum
A common element sometimes used as a treatment coagulant.
Regulated only as a secondary (cosmetic) standard; high levels can discolor water.
How Ontario, CA compares
Nearby systems also reporting Aluminum:
People also ask
+Is there Aluminum in Ontario, CA tap water?
Yes — Ontario, CA's 2024 Consumer Confidence Report lists Aluminum at 41 ug/L. Ontario, CA's 2024 report shows Aluminum detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Aluminum in drinking water?
The EPA has not set an enforceable federal limit for Aluminum. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Aluminum?
A common element sometimes used as a treatment coagulant. Regulated only as a secondary (cosmetic) standard; high levels can discolor water.
+Where does this Aluminum measurement come from?
This page reproduces the Aluminum 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.