Radionuclides · 2025
Uranium in Rancho Estates Mutual Water Co., CA tap water
Rancho Estates Mutual Water Co., CA's 2025 Uranium level is between 80% and 100% of the federal limit (20 PCI/L MCL) — measured but not in violation.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Source water | 16.1 PCI/L | 20 PCI/L MCL |
Highest single sample Source water | 16.1 PCI/L | 20 PCI/L MCL |
Verbatim from Rancho Estates Mutual Water Co., CA'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 Rancho Estates Mutual Water Co., CA compares
2 of the 186 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 Rancho Estates Mutual Water Co., CA tap water?
Yes — Rancho Estates Mutual Water Co., CA's 2025 Consumer Confidence Report lists Uranium at 16.1 PCI/L. Rancho Estates Mutual Water Co., CA's 2025 Uranium level is between 80% and 100% of the federal limit (20 PCI/L MCL) — measured but not in violation.
+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.
+Which other U.S. cities have Uranium over the federal limit?
2 of the 186 systems on The Water Map measuring Uranium report it at or above the federal limit. Examples include San Diego, City of, 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 Rancho Estates Mutual Water Co., 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/rancho-estates-mutual-water-co/2025/source.