Disinfection byproducts · 2025
Bromate in Columbus, OH tap water
Columbus, OH's 2025 Consumer Confidence Report shows Bromate at or above the federal limit (0.01 mg/L MCL). Measured value is 1.3× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Dublin Road Water Plant | 2 ug/L | None set |
Range Dublin Road Water Plant | 0–13 ug/L | None set |
Reported level Hap Cremean Water Plant | Not detected ug/L | None set |
Range Hap Cremean Water Plant | Not detected ug/L | None set |
Reported level Columbus Water | 0.001 mg/L | 0.01 mg/L MCL |
Verbatim from Columbus, OH'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.
People also ask
+Is there Bromate in Columbus, OH tap water?
Yes — Columbus, OH's 2025 Consumer Confidence Report lists Bromate at 0–13 ug/L. Columbus, OH's 2025 Consumer Confidence Report shows Bromate at or above the federal limit (0.01 mg/L MCL). Measured value is 1.3× the threshold.
+What's the federal limit for Bromate in drinking water?
The federal MCL for Bromate is 0.01 mg/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.
+Where does this Bromate measurement come from?
This page reproduces the Bromate entry from the 2025 Consumer Confidence Report published by the Columbus, OH 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/oh/columbus/2025/source.