Disinfection byproducts · 2024
Bromate in City of Cupertino, CA tap water
City of Cupertino, CA's 2024 Bromate measurement is below the federal limit of 10 ug/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range Mountain Surface Water | Not detected ug/L | 10 ug/L MCL |
Range VW Surface Water | 0–2.7 ug/L | 10 ug/L MCL |
Average VW Surface Water | 1.7 ug/L | 10 ug/L MCL |
Average Mountain Surface Water | Not detected ug/L | 10 ug/L MCL |
Range Groundwater | Not detected ug/L | 10 ug/L MCL |
Average Groundwater | Not detected ug/L | 10 ug/L MCL |
Verbatim from City of Cupertino, CA's 2024 Consumer Confidence Report — source document ↗
About Bromate
A disinfection byproduct formed when bromide-containing water is treated with ozone.
Classified as a probable human carcinogen; the EPA sets a strict maximum contaminant level.
How City of Cupertino, CA compares
5 of the 132 systems measuring Bromate on The Water Map have it at or above the federal limit:
Nearby systems also reporting Bromate:
People also ask
+Is there Bromate in City of Cupertino, CA tap water?
Yes — City of Cupertino, CA's 2024 Consumer Confidence Report lists Bromate at 1.7 ug/L. City of Cupertino, CA's 2024 Bromate measurement is below the federal limit of 10 ug/L (MCL).
+What's the federal limit for Bromate in drinking water?
The federal MCL for Bromate is 10 ug/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Bromate?
A disinfection byproduct formed when bromide-containing water is treated with ozone. Classified as a probable human carcinogen; the EPA sets a strict maximum contaminant level.
+Which other U.S. cities have Bromate over the federal limit?
5 of the 132 systems on The Water Map measuring Bromate report it at or above the federal limit. Examples include Columbus, OH, City of Hemet, CA, City of Menifee, CA.
+Where does this Bromate measurement come from?
This page reproduces the Bromate entry from the 2024 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/2024/source.