Disinfection byproducts · 2025
Bromate in Phoenix, AZ tap water
Phoenix, AZ's 2025 Bromate measurement is below the federal limit of 10 ug/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Running annual avg System-wide | Not detected ug/L | 10 ug/L MCL |
Range Sample Results | 0–5 ug/L | 10 ug/L MCL |
Verbatim from Phoenix, AZ'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 Phoenix, AZ 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 Phoenix, AZ tap water?
Yes — Phoenix, AZ's 2025 Consumer Confidence Report lists Bromate at Not detected ug/L. Phoenix, AZ'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 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 2025 Consumer Confidence Report published by the Phoenix, AZ 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/az/phoenix/2025/source.