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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)
Cis Dichloroethylene 12 by state
Every state where a public water system reports Cis Dichloroethylene 12 in its annual report, ranked by systems at or above the federal limit.
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.
+Which states report the most Cis Dichloroethylene 12 in their drinking water?
Of the systems on The Water Map, California (1 system at or above the limit), Iowa (1 system at or above the limit), Alabama (1 system at or above the limit) report the most Cis Dichloroethylene 12 exceedances. The state-by-state table on this page lists every state.
+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.