NRC: Three Mile Island radiation not significant

The cooling towers of Three Mile Island's Unit 1 Nuclear Power Plant are seen reflected in a parking lot puddle in Middletown, Pa., Tuesday, March 17, 2009. (AP Photo/Carolyn Kaster)

November 23, 2009 8:21:32 AM PST
The U.S. Nuclear Regulatory Commission says the small amount of radiation detected at the Three Mile Island nuclear power plant is not significant. Specialist John White has told ABC News that there is no indication that radiation at the plant exceeded or even approached regulatory limits.

The commission sent investigators to the central Pennsylvania plant after a small amount of radiation was detected.

About 150 employees were sent home Saturday afternoon, but officials say there is no public health risk.

Exelon Nuclear spokeswoman Beth Archer says the radiation was quickly contained.

The unit has been shut for refueling and maintenance since Oct. 26. Workers are being tested for radiation exposure.

A partial meltdown occurred in Three Mile Island's Unit 2 reactor in 1979.