Trichloroethane 111 in U.S. tap water

Trichloroethane 111 is a contaminant some U.S. public water utilities measure and report in their annual Consumer Confidence Report.

The federal MCL for Trichloroethane 111 is 200 UG/L. The EPA enforces this against the regulated reporting statistic (typically a running annual average or 90th percentile), not a single-sample spike.

Zero of the 184 public water systems in The Water Map dataset currently report Trichloroethane 111 at or above its federal limit.

Search your city on The Water Map (https://www.thewatermap.com/) or browse the list on this page. Every U.S. public water utility is required to publish an annual Consumer Confidence Report that lists every contaminant it measured, including Trichloroethane 111.