Radionuclides · 2025
Uranium in Phoenix, AZ tap water
Phoenix, AZ's 2025 Uranium measurement is below the federal limit of 30 ug/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range Sample Results | 0–4.6 ug/L | 30 ug/L MCL |
Verbatim from Phoenix, AZ's 2025 Consumer Confidence Report — source document ↗
About Uranium
A naturally occurring radioactive metal from erosion of natural deposits.
Long-term exposure above the federal limit can damage the kidneys and increase cancer risk.
How Phoenix, AZ compares
3 of the 97 systems measuring Uranium on The Water Map have it at or above the federal limit:
Nearby systems also reporting Uranium:
People also ask
+Is there Uranium in Phoenix, AZ tap water?
Yes — Phoenix, AZ's 2025 Consumer Confidence Report lists Uranium at 0–4.6 ug/L. Phoenix, AZ's 2025 Uranium measurement is below the federal limit of 30 ug/L (MCL).
+What's the federal limit for Uranium in drinking water?
The federal MCL for Uranium is 30 ug/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Uranium?
A naturally occurring radioactive metal from erosion of natural deposits. Long-term exposure above the federal limit can damage the kidneys and increase cancer risk.
+Which other U.S. cities have Uranium over the federal limit?
3 of the 97 systems on The Water Map measuring Uranium report it at or above the federal limit. Examples include Pomona, CA, Glendale, CA, Albuquerque, NM.
+Where does this Uranium measurement come from?
This page reproduces the Uranium entry from the 2025 Consumer Confidence Report published by the Phoenix, AZ 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/az/phoenix/2025/source.