Microbial · 2025
Giardia lamblia in Columbus, OH tap water
Columbus, OH's 2025 Consumer Confidence Report tested for Giardia lamblia and reported no detectable amount.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Columbus Water | Not detected | None set |
Verbatim from Columbus, OH's 2025 Consumer Confidence Report — source document ↗
How Columbus, OH compares
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People also ask
+Is there Giardia lamblia in Columbus, OH tap water?
Columbus, OH's 2025 Consumer Confidence Report tested for Giardia lamblia and found no detectable amount.
+What's the federal limit for Giardia lamblia in drinking water?
The EPA has not set an enforceable federal limit for Giardia lamblia. Utilities still report any measured levels in their annual Consumer Confidence Report.
+Where does this Giardia lamblia measurement come from?
This page reproduces the Giardia lamblia 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.