Metals · 2025
Iron in Walker County, TN tap water
Walker County, TN's 2025 Consumer Confidence Report tested for Iron and reported no detectable amount.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range Range Detected | Not detected mg/L | 0.3 mg/L MCL |
Average Citico Water Treatment Plant | Not detected mg/L | 0.3 mg/L MCL |
Verbatim from Walker County, TN's 2025 Consumer Confidence Report — source document ↗
About Iron
A naturally occurring metal common in groundwater.
Regulated only as a secondary (cosmetic) standard; causes rusty color, staining, and metallic taste.
How Walker County, TN compares
4 of the 80 systems measuring Iron on The Water Map have it at or above the federal limit:
Nearby systems also reporting Iron:
People also ask
+Is there Iron in Walker County, TN tap water?
Walker County, TN's 2025 Consumer Confidence Report tested for Iron and found no detectable amount.
+What's the federal limit for Iron in drinking water?
The federal MCL for Iron is 0.3 mg/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Iron?
A naturally occurring metal common in groundwater. Regulated only as a secondary (cosmetic) standard; causes rusty color, staining, and metallic taste.
+Which other U.S. cities have Iron over the federal limit?
4 of the 80 systems on The Water Map measuring Iron report it at or above the federal limit. Examples include Salt Lake City, UT, Palm Coast, FL, Miramar, FL.
+Where does this Iron measurement come from?
This page reproduces the Iron 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.