Radionuclides · 2024
Combined Radium in Pomona, CA tap water
Pomona, CA's 2024 Combined Radium measurement is below the federal limit of 5 pCi/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level POMONA GROUNDWATER (Domestic Water) | 0–1.63 pCi/L | 5 pCi/L MCL |
Reported level Miramar Effluent | Not detected pCi/L | 5 pCi/L MCL |
Reported level POMONA GROUNDWATER (Domestic Water) | Not detected pCi/L | 0.05 pCi/L Public health goal |
Reported level Pomona Effluent | Not detected pCi/L | 0.05 pCi/L Public health goal |
Reported level Weymouth Effluent | Not detected pCi/L | 0.05 pCi/L Public health goal |
Reported level Miramar Groundwater Miragrand Well | 0.82 pCi/L | 0.05 pCi/L Public health goal |
Reported level POMONA GROUNDWATER (Domestic Water) | 0–1.63 pCi/L | 0.019 pCi/L Public health goal |
Reported level Miramar Groundwater Miragrand Well | 0.34 pCi/L | 0.019 pCi/L Public health goal |
Verbatim from Pomona, CA's 2024 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 Pomona, CA compares
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People also ask
+Is there Combined Radium in Pomona, CA tap water?
Yes — Pomona, CA's 2024 Consumer Confidence Report lists Combined Radium at 0–1.63 pCi/L. Pomona, CA's 2024 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.
+Where does this Combined Radium measurement come from?
This page reproduces the Combined Radium entry from the 2024 Consumer Confidence Report published by the Pomona, CA 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/ca/pomona/2024/source.