SENECA - Officials say they've found elevated levels of a radioactive form of hydrogen in water in two wells at a South Carolina nuclear reactor site.
Duke Energy said Tuesday that samples from two wells at Oconee Nuclear Station near Seneca showed tritium levels above the nuclear industry's voluntary reporting level.
Tritium is a byproduct of reactor operations. Experts say exposure to it elevates the risk of cancer, although the risk is low if the exposures are small.
Officials at the plant say they have notified the state Department of Health and Environmental Control and will do additional testing in the wells, which are not for drinking water.
Duke says the 52 other wells sampled on the site did not show elevated levels of tritium.
- The Associated Press