Disinfection byproducts · 2025
Chloroform in City of Antioch, CA tap water
City of Antioch, CA's 2025 report shows Chloroform detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Distribution | 25 UG/L | None set |
Highest single sample Entry point | 14 UG/L | None set |
Highest single sample Source water | Not detected UG/L | None set |
Average Distribution | 11.127083333333333 UG/L | None set |
Average Entry point | 7.125 UG/L | None set |
Verbatim from City of Antioch, CA's 2025 Consumer Confidence Report — source document ↗
About Chloroform
A trihalomethane formed when chlorine reacts with organic matter in water.
A component of regulated total trihalomethanes; long-term exposure is linked to liver and kidney effects.
How City of Antioch, CA compares
Nearby systems also reporting Chloroform:
People also ask
+Is there Chloroform in City of Antioch, CA tap water?
Yes — City of Antioch, CA's 2025 Consumer Confidence Report lists Chloroform at 11.127083333333333 UG/L. City of Antioch, CA's 2025 report shows Chloroform detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Chloroform in drinking water?
The EPA has not set an enforceable federal limit for Chloroform. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Chloroform?
A trihalomethane formed when chlorine reacts with organic matter in water. A component of regulated total trihalomethanes; long-term exposure is linked to liver and kidney effects.
+Where does this Chloroform measurement come from?
This page reproduces the Chloroform entry from the 2025 Consumer Confidence Report published by the City of Antioch, 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/antioch/2025/source.