Disinfection byproducts · 2025

Chloroform in Fern Valley Wd, CA tap water

Detected — no federal limit

Fern Valley Wd, CA's 2025 report shows Chloroform detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Highest single sample
Distribution
42 UG/L
Highest single sample
Source water
Not detected UG/L
Average
Distribution
21.475 UG/L

Verbatim from Fern Valley Wd, 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 Fern Valley Wd, CA compares

Nearby systems also reporting Chloroform:

People also ask

+Is there Chloroform in Fern Valley Wd, CA tap water?

Yes — Fern Valley Wd, CA's 2025 Consumer Confidence Report lists Chloroform at 21.475 UG/L. Fern Valley Wd, 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 Fern Valley Wd, 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/fern-valley-wd/2025/source.

Full report
All Fern Valley Wd, CA water-quality data →
Every contaminant measured in the 2025 report.
Contaminant pillar
Chloroform across the U.S. →
Every public water system measuring Chloroform, ranked.