Disinfection byproducts · 2025
Bromate in San Diego, City of, CA tap water
San Diego, City of, CA's 2025 Bromate measurement is below the federal limit of 10 UG/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Entry point | 6.86 UG/L | 10 UG/L MCL |
Highest single sample Other | Not detected UG/L | 10 UG/L MCL |
Average Entry point | 2.6744 UG/L | 10 UG/L MCL |
Verbatim from San Diego, City of, CA's 2025 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 San Diego, City of, CA compares
5 of the 107 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 San Diego, City of, CA tap water?
Yes — San Diego, City of, CA's 2025 Consumer Confidence Report lists Bromate at 2.6744 UG/L. San Diego, City of, CA's 2025 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 107 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 Murrieta, CA.
+Where does this Bromate measurement come from?
This page reproduces the Bromate entry from the 2025 Consumer Confidence Report published by the San Diego, City of, 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/san-diego/2025/source.