Microbial · 2025
Total Coliform in Columbus, OH tap water
Columbus, OH's 2025 Consumer Confidence Report tested for Total Coliform and reported no detectable amount.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Columbus Water | 0 | None set |
Verbatim from Columbus, OH's 2025 Consumer Confidence Report — source document ↗
About Total Coliform
A group of bacteria used as an indicator of overall water-system sanitation.
Coliforms themselves are usually harmless, but their presence signals that disease-causing organisms could enter the system.
How Columbus, OH compares
1 of the 178 systems measuring Total Coliform on The Water Map have it at or above the federal limit:
Nearby systems also reporting Total Coliform:
People also ask
+Is there Total Coliform in Columbus, OH tap water?
Columbus, OH's 2025 Consumer Confidence Report tested for Total Coliform and found no detectable amount.
+What's the federal limit for Total Coliform in drinking water?
The EPA has not set an enforceable federal limit for Total Coliform. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Total Coliform?
A group of bacteria used as an indicator of overall water-system sanitation. Coliforms themselves are usually harmless, but their presence signals that disease-causing organisms could enter the system.
+Which other U.S. cities have Total Coliform over the federal limit?
1 of the 178 systems on The Water Map measuring Total Coliform report it at or above the federal limit. Examples include Thornton, CO.
+Where does this Total Coliform measurement come from?
This page reproduces the Total Coliform 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.