Yes — Madison, WI's 2024 Consumer Confidence Report lists Trichloroethylene at Not detected ug/L. Madison, WI's 2024 Trichloroethylene measurement is below the federal limit of 5 ug/L (MCL).

+What's the federal limit for Trichloroethylene in drinking water?

The federal MCL for Trichloroethylene is 5 ug/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.

+What is Trichloroethylene?

An industrial solvent (TCE) used in metal degreasing. A known human carcinogen; long-term exposure above the federal limit can damage the liver.

+Which other U.S. cities have Trichloroethylene over the federal limit?

1 of the 32 systems on The Water Map measuring Trichloroethylene report it at or above the federal limit. Examples include El Monte, CA.

+Where does this Trichloroethylene measurement come from?

This page reproduces the Trichloroethylene entry from the 2024 Consumer Confidence Report published by the Madison, WI 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/wi/madison/2024/source.

Full report

All Madison, WI water-quality data →

Every contaminant measured in the 2024 report.

Contaminant pillar

Trichloroethylene across the U.S. →

Every public water system measuring Trichloroethylene, ranked.