Title: Leak being repaired at Oyster Creek nuclear plant
Date: Nov 27, 2012
Leak being repaired at Oyster Creek nuclear plant
Officials say a pinhole leak has been found on a reactor head spray line nozzle at the nation’s oldest operating nuclear plant.
[...] But it’s not yet clear what caused the leak, which is being repaired by plant workers.
The leak occurred on a flange to a piping weld on the reactor’s head spray system. Water was found to be weeping from the pinhole leak at approximately 2 to 3 drops per minute. [...]
Title: NRC Finds Pinhole Leak at Oyster Creek, Denies Activist’s Petition
Source: Berkeley, NJ Patch
Author: Elaine Piniat
Date: November 28, 2012
Expert Witness Arnie Gunderson [sic], a consultant from Fairewinds Energy Education, said that the problems recently discovered at Oyster Creek are all age related.
“Because of its age, it’s in jeopardy. The crack and this pipe are age-drelated. The fact that it doesn’t have a High Pressure Injection System is age-related,” he said.
Oyster Creek is the only nuclear plant in the country that does not have a High Pressure Coolant Injection System that is designed to cool the plant in the event of a small line break, he said. [...]
“The crack found in the nozzle, that would have been a small line break,” said Gundersen, who studied nuclear engineering and was a licensed reactor operator.
The pinhole leak is a larger issue than the NRC and Exelon is letting on, he said.
“Pinhole leaks rapidly grow when in use. The pinhole wouldn’t have been a pinhole very long,” he said. [...]
“NRC metallurgical specialists will continue to engage Exelon on the leak, including a review of the company’s characterization of the flaw and its repair plan.” -Nuclear Regulatory Commission (NRC) spokesman Neil Sheehan
Published: November 29th, 2012 at 12:49 pm ET