Other · 2025
Chlorine Total in Columbus, OH tap water
Columbus, OH's 2025 Chlorine Total measurement is below the federal limit of 4 mg/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range Hap Cremean Water Plant | 1.2–1.47 mg/L | 4 mg/L MCL |
Reported level Parsons Avenue Water Plant | 0.97 mg/L | 4 mg/L MCL |
Reported level Hap Cremean Water Plant | 1.4 mg/L | 4 mg/L MCL |
Range Dublin Road Water Plant | 1.28–1.59 mg/L | 4 mg/L MCL |
Range Parsons Avenue Water Plant | 0.87–1.04 mg/L | 4 mg/L MCL |
Reported level Dublin Road Water Plant | 1.44 mg/L | 4 mg/L MCL |
Verbatim from Columbus, OH's 2025 Consumer Confidence Report — source document ↗
How Columbus, OH compares
5 of the 307 systems measuring Chlorine Total on The Water Map have it at or above the federal limit:
Nearby systems also reporting Chlorine Total:
People also ask
+Is there Chlorine Total in Columbus, OH tap water?
Yes — Columbus, OH's 2025 Consumer Confidence Report lists Chlorine Total at 1.28–1.59 mg/L. Columbus, OH's 2025 Chlorine Total measurement is below the federal limit of 4 mg/L (MCL).
+What's the federal limit for Chlorine Total in drinking water?
The federal MCL for Chlorine Total is 4 mg/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+Which other U.S. cities have Chlorine Total over the federal limit?
5 of the 307 systems on The Water Map measuring Chlorine Total report it at or above the federal limit. Examples include Hampton, VA, James City County, VA, Lomita-city, Water Dept. — Lomita, Ca, CA.
+Where does this Chlorine Total measurement come from?
This page reproduces the Chlorine Total 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.