Radionuclides · 2024
Uranium in Boulder, CO tap water
Boulder, CO's 2024 report shows Uranium detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level National City Well 2 | 1.3 pCi/L | 20 pCi/L MCL |
Reported level National City Well 3 | Not detected pCi/L | 20 pCi/L MCL |
Reported level National City Well 4 | 0.8 pCi/L | 20 pCi/L MCL |
Reported level SD Formation Wells 1 - 11 | 0–8.5 pCi/L | 20 pCi/L MCL |
Reported level Lake Skinner Outlet (Aqueduct) | 1.5–3.1 pCi/L | 20 pCi/L MCL |
Reported level Sweetwater Reservoir | 2.4 pCi/L | 20 pCi/L MCL |
Reported level National City Well 2 | 1.3 pCi/L | 20 pCi/L MCL |
Reported level National City Well 4 | 0.8 pCi/L | 20 pCi/L MCL |
Reported level SD Formation Wells 1 - 11 | 3.7 pCi/L | 20 pCi/L MCL |
Reported level Lake Skinner Outlet (Aqueduct) | 2.4 pCi/L | 20 pCi/L MCL |
Reported level Sweetwater Reservoir | 2.4 pCi/L | 20 pCi/L MCL |
Verbatim from Boulder, CO's 2024 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 Boulder, CO compares
Nearby systems also reporting Uranium:
People also ask
+Is there Uranium in Boulder, CO tap water?
Yes — Boulder, CO's 2024 Consumer Confidence Report lists Uranium at 0–8.5 pCi/L. Boulder, CO's 2024 report shows Uranium detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Uranium in drinking water?
The federal MCL for Uranium is 20 pCi/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.
+Where does this Uranium measurement come from?
This page reproduces the Uranium entry from the 2024 Consumer Confidence Report published by the Boulder, CO 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/co/boulder/2024/source.