Other · 2025
Cis Dichloroethylene 12 in City of Cupertino, CA tap water
City of Cupertino, CA's 2025 Consumer Confidence Report tested for Cis Dichloroethylene 12 and reported no detectable amount.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Source water | Not detected UG/L | 6 UG/L MCL |
Verbatim from City of Cupertino, CA's 2025 Consumer Confidence Report — source document ↗
How City of Cupertino, CA compares
2 of the 184 systems measuring Cis Dichloroethylene 12 on The Water Map have it at or above the federal limit:
Nearby systems also reporting Cis Dichloroethylene 12:
People also ask
+Is there Cis Dichloroethylene 12 in City of Cupertino, CA tap water?
City of Cupertino, CA's 2025 Consumer Confidence Report tested for Cis Dichloroethylene 12 and found no detectable amount.
+What's the federal limit for Cis Dichloroethylene 12 in drinking water?
The federal MCL for Cis Dichloroethylene 12 is 6 UG/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+Which other U.S. cities have Cis Dichloroethylene 12 over the federal limit?
2 of the 184 systems on The Water Map measuring Cis Dichloroethylene 12 report it at or above the federal limit. Examples include Glendale-city, Water Dept., CA, Glendale-city, Water Dept., CA.
+Where does this Cis Dichloroethylene 12 measurement come from?
This page reproduces the Cis Dichloroethylene 12 entry from the 2025 Consumer Confidence Report published by the City of Cupertino, 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/cupertino/2025/source.