Monday, November 26, 2012

NRC to Hear Oral Argument on San Onofre Nuke Plant on December 5

NRC has already indicated that the radioactive steam leak from one of the steam generators at San Onofre Nuclear Generating Station in southern California stems from the faulty design by Mitsubishi Heavy Industries:

NRC officials said it appears that simulations by Mitsubishi underpredicted the velocity of steam and water flowing among the tubes by a factor of three to four. The rate of flow caused the tubes to vibrate and knock against each other.

Now, why would they have done that? The steam generators that Mitsubishi Heavy Industries design, manufacture and sell are about 1/3 to half the size of the ones they delivered to San Onofre. Did MHI engineers forget to change the default number for the simulation, which may have been set for much smaller steam generators? It can't be that elementary, can it?

So far, MHI hasn't released any statement on San Onofre.

From East County Magazine (11/26/2012):


November 26, 2012 (Washington D.C.)-- The U.S. Nuclear Regulatory Commission, Atomic Safety and Licensing Board (NRC) has ordered that oral arguments be heard at 1:00 pm EST on Wednesday, December 5 from Citizens' Oversight (COPS) and Southern California Edison (SCE) regarding a license amendment request by SCE for the San Onofre Nuclear Generating Station.

“COPS requested that the event be held near San Onofre, but the NRC refused to hold it so that local residents can attend,” Ray Lutz, founder of COPS, a watchdog group based in San Diego’s East County, stated in a press release. For the benefit of the public, the proceeding will be webcast at

Oral arguments will be heard in the Rockville Hearing Room, located on the third floor of Two White Flint North, 11555 Rockville Pike, Rockville, Maryland. The proceeding will be open to the public in Maryland; SCE attorneys and NRC staff will be attending in person.

(Full article at the link)

Even without the faulty steam generators, this particular nuclear power plant shouldn't have been there anyways, right on the beach...


JAnonymous said...

And everybody's gone suuuuuuurfing...

Speaking of elementary mistakes, anyone remembers Ariane 5 test flight ?

Anonymous said...

Even if they set the meeting for the western NRC region the COPS representatives would have to travel to Arlington, Texas.I wonder what the license amendment request involves? They probably want to overlook the steam leak as a permissible "controlled" release so they can get on with business as usual.

The NRC's website says region 4 (in Texas) is responsible for carrying out the agency's duties in California. (EXCEPT when it comes to important stuff like ignoring citizen oversight)

Anonymous said...

Interesting. So they choose to hold a "Public" hearing in Maryland, 2,500 miles away from were residents live. I am sure that was purely an oversight! (SARC)

arevamirpal::laprimavera said...

From what I heard, NRC wanted to hold the hearing locally, but the hotel where the hearing was to take place backed out.

Anonymous said...

The hotel backed out and there was no other suitable facility within a 2500 miles radius???

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