Most drinking water sources have very low levels of uranium if shallow wells (under oxidizing conditions). Most uranium is naturally occurring, although contamination of drinking water sources from human-made nuclear materials can also occur. Most radioactive contaminants are at levels that are low enough to not be considered a public health concern.
Some people who drink water containing uranium in excess of the MCL over many years may have an increased risk of getting cancer.
MCL ADVISORY - ACTION IS HIGHLY RECOMMENDED
Uranium levels were detected in your water sample to exceed the maximum contaminant level (MCL).
ACTION IS OPTIONAL
Uranium levels were detected in your water sample but do not exceed the maximum contaminant level.
- USEPA - Water: Basic Information about Regulated Drinking Water Contaminants - Basic Information about Radionuclides in Drinking Water
- ATSDR - Toxic Substances Portal - Uranium
- ATSDR ToxFAQs Fact Sheet - Natural and Depleted Uranium
- Water Systems Council - wellcare® information for you about Uranium & Groundwater