Metals · 2024
Sodium in Ontario, CA tap water
Ontario, CA's 2024 report shows Sodium detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Purchased Groundwater CDA 1 (870 Zone) | 32 mg/L | None set |
Reported level Local Groundwater | 21 mg/L | None set |
Reported level Purchased Groundwater CDA 2 (1110 Zone) | 25 mg/L | None set |
Reported level Imported Water (WFA w/ SAWCO) | 29 mg/L | None set |
Reported level Purchased Groundwater JCSD (870 Zone) | 30 mg/L | None set |
Verbatim from Ontario, CA's 2024 Consumer Confidence Report — source document ↗
About Sodium
A naturally occurring salt component.
Not federally regulated for health; relevant for people on sodium-restricted diets.
How Ontario, CA compares
5 of the 219 systems measuring Sodium on The Water Map have it at or above the federal limit:
Nearby systems also reporting Sodium:
People also ask
+Is there Sodium in Ontario, CA tap water?
Yes — Ontario, CA's 2024 Consumer Confidence Report lists Sodium at 32 mg/L. Ontario, CA's 2024 report shows Sodium detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Sodium in drinking water?
The EPA has not set an enforceable federal limit for Sodium. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Sodium?
A naturally occurring salt component. Not federally regulated for health; relevant for people on sodium-restricted diets.
+Which other U.S. cities have Sodium over the federal limit?
5 of the 219 systems on The Water Map measuring Sodium report it at or above the federal limit. Examples include San Diego, CA, Pomona, CA, Burbank, CA.
+Where does this Sodium measurement come from?
This page reproduces the Sodium 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.