Inorganic chemicals · 2024
Sulfate in Ontario, CA tap water
Ontario, CA's 2024 report shows Sulfate detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Local Groundwater | 12 mg/L | None set |
Reported level Source water | 34 mg/L | None set |
Reported level Purchased Groundwater JCSD (870 Zone) | 16 mg/L | None set |
Reported level Purchased Groundwater CDA 1 (870 Zone) | 6.4 mg/L | None set |
Reported level Purchased Groundwater CDA 2 (1110 Zone) | 7.9 mg/L | None set |
Verbatim from Ontario, CA's 2024 Consumer Confidence Report — source document ↗
About Sulfate
A naturally occurring mineral from rock and soil.
No health-based federal limit; high levels can have a laxative effect and a bitter taste.
How Ontario, CA compares
Nearby systems also reporting Sulfate:
People also ask
+Is there Sulfate in Ontario, CA tap water?
Yes — Ontario, CA's 2024 Consumer Confidence Report lists Sulfate at 34 mg/L. Ontario, CA's 2024 report shows Sulfate detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Sulfate in drinking water?
The EPA has not set an enforceable federal limit for Sulfate. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Sulfate?
A naturally occurring mineral from rock and soil. No health-based federal limit; high levels can have a laxative effect and a bitter taste.
+Where does this Sulfate measurement come from?
This page reproduces the Sulfate 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.