“Structural and civil engineers inspected the cracks and determined they are typical of cracks seen from shrinkage during post-construction concrete curing,” said Geoffrey Schwartz, Entergy manager of Indian Point 2’s spent-fuel dry storage project. “The cracks do not weaken the wall and the pool is structurally sound.”
Entergy engineers this week have determined that the moisture came from the spent fuel pool, and may have come from a leak in the pool that was repaired in 1992. Radiological engineers and chemists report that trace amounts of radioactive cesium and cobalt were present in samples taken from the wall. Both are present in the spent-fuel pool.
There is no radiological hazard to workers or the public and the potential environmental impact is minimal. Soil samples taken three feet from the area where the moisture was detected showed normal background levels of radiation. Deep-depth core borings taken earlier as part of the dry cask storage project in six locations near the pool showed no elevated levels of radioactivity.
Entergy engineers and health physics technicians are continuing to analyze soil samples and will be monitoring the area around the fuel storage building in addition to the routine radiological monitoring done on a regular basis.
Removal of spent fuel from the pool to storage casks is scheduled to begin at the end of 2006.
The U.S. Nuclear Regulatory Commission has been notified.“