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Cis Dichloroethylene 12 in U.S. tap water
35 public water systems across 11 U.S. states report Cis Dichloroethylene 12 in their annual Consumer Confidence Report. 3 sit at or above the federal limit.
At or above the federal limit (3)
| Water system | Measured | vs. limit |
|---|---|---|
| Des Moines, IA 2024 annual report | 0.5 mg/L | 7.1× the limit |
| Compton-city, Water Dept. — Compton, Ca, CA 2023 annual report | 0.3 mg/L | 4.3× the limit |
| Montgomery, AL 2024 annual report | 0.2 mg/L | 2.9× the limit |
Within the federal limit (32)
Frequently asked
+What is Cis Dichloroethylene 12?
Cis Dichloroethylene 12 is a contaminant some U.S. public water utilities measure and report in their annual Consumer Confidence Report.
+What is the federal limit for Cis Dichloroethylene 12 in drinking water?
The federal MCL for Cis Dichloroethylene 12 is 0.07 mg/L. The EPA enforces this against the regulated reporting statistic (typically a running annual average or 90th percentile), not a single-sample spike.
+How many U.S. water systems have Cis Dichloroethylene 12 over the federal limit?
3 of the 35 public water systems on The Water Map report Cis Dichloroethylene 12 at or above its federal limit, spanning 11 U.S. states. The full list is on this page.
+How can I check if Cis Dichloroethylene 12 is in my city's tap water?
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 Cis Dichloroethylene 12.