Metals · 2024
Chromium, Hexavalent in Ontario, CA tap water
Ontario, CA's 2024 report shows Chromium, Hexavalent detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Purchased Groundwater JCSD (870 Zone) | 2.2 ug/L | None set |
Reported level Purchased Groundwater CDA 1 (870 Zone) | 0.05 ug/L | None set |
Reported level Purchased Groundwater CDA 2 (1110 Zone) | 0.7 ug/L | None set |
Verbatim from Ontario, CA's 2024 Consumer Confidence Report — source document ↗
About Chromium, Hexavalent
Hexavalent chromium ('chromium-6') — the more toxic form of chromium.
A known carcinogen by inhalation; regulated nationally only within the total-chromium limit, with stricter limits in some states.
How Ontario, CA compares
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People also ask
+Is there Chromium, Hexavalent in Ontario, CA tap water?
Yes — Ontario, CA's 2024 Consumer Confidence Report lists Chromium, Hexavalent at 2.2 ug/L. Ontario, CA's 2024 report shows Chromium, Hexavalent detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Chromium, Hexavalent in drinking water?
The EPA has not set an enforceable federal limit for Chromium, Hexavalent. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Chromium, Hexavalent?
Hexavalent chromium ('chromium-6') — the more toxic form of chromium. A known carcinogen by inhalation; regulated nationally only within the total-chromium limit, with stricter limits in some states.
+Where does this Chromium, Hexavalent measurement come from?
This page reproduces the Chromium, Hexavalent 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.