Inorganic chemicals · 2025
Fluoride in Columbus, OH tap water
Columbus, OH's 2025 Consumer Confidence Report shows Fluoride at or above the federal limit (4 mg/L MCL). Measured value is 506.3× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Dublin Road Water Plant | 0.96 mg/L | 4 mg/L MCL |
Range Hap Cremean Water Plant | 0.8–1 mg/L | 4 mg/L MCL |
Range Dublin Road Water Plant | 0.32–1 mg/L | 4 mg/L MCL |
Reported level When we checked | 2025 mg/L | 4 mg/L MCL |
Range Parsons Avenue Water Plant | 0.79–1.03 mg/L | 4 mg/L MCL |
Reported level Parsons Avenue Water Plant | 0.98 mg/L | 4 mg/L MCL |
Reported level Columbus Water | 0.91 | 4 MCL |
Reported level Hap Cremean Water Plant | 0.97 mg/L | 4 mg/L MCL |
Verbatim from Columbus, OH's 2025 Consumer Confidence Report — source document ↗
About Fluoride
A mineral often added to drinking water to help prevent tooth decay.
Beneficial at low levels, but long-term exposure above the federal limit can cause bone disease and tooth mottling.
How Columbus, OH compares
5 of the 386 systems measuring Fluoride on The Water Map have it at or above the federal limit:
Nearby systems also reporting Fluoride:
People also ask
+Is there Fluoride in Columbus, OH tap water?
Yes — Columbus, OH's 2025 Consumer Confidence Report lists Fluoride at 2025 mg/L. Columbus, OH's 2025 Consumer Confidence Report shows Fluoride at or above the federal limit (4 mg/L MCL). Measured value is 506.3× the threshold.
+What's the federal limit for Fluoride in drinking water?
The federal MCL for Fluoride is 4 mg/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Fluoride?
A mineral often added to drinking water to help prevent tooth decay. Beneficial at low levels, but long-term exposure above the federal limit can cause bone disease and tooth mottling.
+Which other U.S. cities have Fluoride over the federal limit?
5 of the 386 systems on The Water Map measuring Fluoride report it at or above the federal limit. Examples include High Point, NC, Hollywood, FL, Mcallen, TX.
+Where does this Fluoride measurement come from?
This page reproduces the Fluoride 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.