Radionuclides · 2023
Combined Radium in Houston, TX tap water
Houston, TX's 2023 Combined Radium measurement is below the federal limit of 5 pCi/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average System-wide | 1.77 pCi/L | 5 pCi/L MCL |
Minimum System-wide | Not detected pCi/L | 5 pCi/L MCL |
Maximum System-wide | 1.91 pCi/L | 5 pCi/L MCL |
Minimum System-wide | 1.63 pCi/L | 5 pCi/L MCL |
Average System-wide | 1.7 pCi/L | 5 pCi/L MCL |
Maximum System-wide | 3.3 pCi/L | 5 pCi/L MCL |
Verbatim from Houston, TX's 2023 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 Houston, TX compares
5 of the 182 systems measuring Combined Radium on The Water Map have it at or above the federal limit:
Nearby systems also reporting Combined Radium:
People also ask
+Is there Combined Radium in Houston, TX tap water?
Yes — Houston, TX's 2023 Consumer Confidence Report lists Combined Radium at 1.77 pCi/L. Houston, TX's 2023 Combined Radium measurement is below the federal limit of 5 pCi/L (MCL).
+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.
+Which other U.S. cities have Combined Radium over the federal limit?
5 of the 182 systems on The Water Map measuring Combined Radium report it at or above the federal limit. Examples include Pomona, CA, West Covina, CA, Albuquerque, NM.
+Where does this Combined Radium measurement come from?
This page reproduces the Combined Radium entry from the 2023 Consumer Confidence Report published by the Houston, TX 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/tx/houston/2023/source.