Tritium detected in groundwater at Sequoyah Nuclear Plant

photo Cooling towers let off steam at the Sequoyah Nuclear Plant.

TVA's nuclear troubles seem to be mounting.

The utility now has active safety concern flags from the U.S. Nuclear Regulatory Commission raised at all three of its operating nuclear plants.

Additionally, Tennessee Valley Authority officials acknowledged on Tuesday they have found elevated levels of tritium in a groundwater sample taken from a monitoring well at the Sequoyah Nuclear Plant.

TVA spokesman Ray Golden said there is no indication the radioactive material has migrated in groundwater beyond the Soddy-Daisy plant's property, which borders the Tennessee River.

Golden also said a new Watts Bar Nuclear Plant "white" safety finding was raised in September by NRC inspectors and TVA was notified last week.