Physical & aggregate · 2025
Turbidity in Columbus, OH tap water
Columbus, OH's 2025 Turbidity measurement is below the federal limit of 1 NTU (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Dublin Road Water Plant | 0.12 NTU | None set |
Range Dublin Road Water Plant | 0–0.12 NTU | None set |
Reported level Hap Cremean Water Plant | 0.68 NTU | None set |
Range Hap Cremean Water Plant | 0.03–0.68 NTU | None set |
Reported level Columbus Water | 0.05 NTU | 1 NTU MCL |
Verbatim from Columbus, OH's 2025 Consumer Confidence Report — source document ↗
About Turbidity
A measure of cloudiness from suspended particles in the water.
High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.
How Columbus, OH compares
Nearby systems also reporting Turbidity:
People also ask
+Is there Turbidity in Columbus, OH tap water?
Yes — Columbus, OH's 2025 Consumer Confidence Report lists Turbidity at 0.68 NTU. Columbus, OH's 2025 Turbidity measurement is below the federal limit of 1 NTU (MCL).
+What's the federal limit for Turbidity in drinking water?
The federal MCL for Turbidity is 1 NTU. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Turbidity?
A measure of cloudiness from suspended particles in the water. High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.
+Where does this Turbidity measurement come from?
This page reproduces the Turbidity 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.