Radionuclides · 2025
Combined Radium in East Ridge, TN tap water
East Ridge, TN's 2025 Consumer Confidence Report shows Combined Radium at or above the federal limit (5 pCi/L MCL). Measured value is 1.0× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level System-wide | 0 pCi/L | 5 pCi/L MCL |
Reported level System-wide | 5 pCi/L | 5 pCi/L MCL |
Reported level System-wide | 1.08 pCi/L | 5 pCi/L MCL |
Reported level System-wide | 1.08 pCi/L | 5 pCi/L MCL |
Verbatim from East Ridge, TN's 2025 Consumer Confidence Report — source document ↗
About Combined Radium
Combined radium-226 and radium-228 — naturally occurring radioactive elements.
Long-term exposure above the federal limit increases the risk of bone cancer.
How East Ridge, TN compares
Nearby systems also reporting Combined Radium:
People also ask
+Is there Combined Radium in East Ridge, TN tap water?
Yes — East Ridge, TN's 2025 Consumer Confidence Report lists Combined Radium at 5 pCi/L. East Ridge, TN's 2025 Consumer Confidence Report shows Combined Radium at or above the federal limit (5 pCi/L MCL). Measured value is 1.0× the threshold.
+What's the federal limit for Combined Radium in drinking water?
The federal MCL for Combined Radium is 5 pCi/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Combined Radium?
Combined radium-226 and radium-228 — naturally occurring radioactive elements. Long-term exposure above the federal limit increases the risk of bone cancer.
+Where does this Combined Radium measurement come from?
This page reproduces the Combined Radium entry from the 2025 Consumer Confidence Report published by the East Ridge, 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/east-ridge/2025/source.