Inorganic chemicals · 2025
Fluoride in Walker County, TN tap water
Walker County, TN's 2025 Fluoride measurement is below the federal limit of 4 mg/L (MCLG).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Running annual avg System-wide | 0.69 mg/L | 4 mg/L MCLG |
Range Range Detected | 0.67–0.71 mg/L | 4 mg/L MCLG |
Verbatim from Walker County, TN'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 Walker County, TN 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 Walker County, TN tap water?
Yes — Walker County, TN's 2025 Consumer Confidence Report lists Fluoride at 0.69 mg/L. Walker County, TN's 2025 Fluoride measurement is below the federal limit of 4 mg/L (MCLG).
+What's the federal limit for Fluoride in drinking water?
The federal MCLG 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, Columbus, OH, Hollywood, FL.
+Where does this Fluoride measurement come from?
This page reproduces the Fluoride entry from the 2025 Consumer Confidence Report published by the Walker County, TN 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/tn/walker-county/2025/source.