Disinfection byproducts · 2026

Chloroform in City of Sunnyvale, CA tap water

Detected — no federal limit

City of Sunnyvale, CA's 2026 report shows Chloroform detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Highest single sample
Distribution
15.1 UG/L
Average
Distribution
13.4375 UG/L

Verbatim from City of Sunnyvale, CA's 2026 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 Sunnyvale, CA compares

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People also ask

+Is there Chloroform in City of Sunnyvale, CA tap water?

Yes — City of Sunnyvale, CA's 2026 Consumer Confidence Report lists Chloroform at 13.4375 UG/L. City of Sunnyvale, CA's 2026 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 2026 Consumer Confidence Report published by the City of Sunnyvale, 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/sunnyvale/2026/source.

Full report
All City of Sunnyvale, CA water-quality data →
Every contaminant measured in the 2026 report.
Contaminant pillar
Chloroform across the U.S. →
Every public water system measuring Chloroform, ranked.