From: Riemer, Kenneth dLXII
Sent: Monday, March 14, 2011 2:02 PM
To: Scarbeary, April; Ramirez, Frances; Ruiz, Robert; Haeg,_Lucas; Murray, Robert; Thomas,
Christopher; Voss, Patricia; Shah, Nirodh Feintuch, Karl A .I191
Cc: Riemer, Kenneth .-
Subject: Japanese event
Just a quick update based on what we’ve heard so far. Just a couple of caveats and general info:
* As Nick indicated in his e-mail, if you get any requests for info or status, forward them to the HOO. That way the agency will have one voice.
* It’s frustrating, but we have very little factual info as an agency. What we’ve been getting has been through the State Dept.
” The Japanese regulatory body is~very mature, sophisticated and technically competent, as is the Japanese industry so the NRC is being very careful to not interfere or imply that they are not equipped to handle the reactor events.
* The NRC has sent 2 people over with the potential to send some more.
• The plants appear to have survived the earthquake pretty well, but lost the EDG fuel oil supplies (therefore complete station blackout situation) when the tsunami hit. EDG fuel oil tanks were above ground design.
* Repeat of first bullet – if you get any inquiries, send them to the HOO
The site has 6 reactors; three were operating and the other three were shut down for maintenance at the time of the earthquake.
For the operating units:
Unit 1: similar design to Dresden with iso-condenser. core damage is likely. Core coverage is uncertain.
Injecting borated sea water to the core, but have now lost that capability. Hydrogen explosion and have lost secondary containment, but believe primary containment is intact. Venting fission product daughters off-site, but prevailing winds are out to sea.
Unit 2: similar design to Quad Cities/Duane Arnold. in the best (very relative term) shape of the three previously operating reactors. Were operating on RCIC but that is now lost. Primary and secondary containment believed intact, however anticipate that a hydrogen explosion is imminent.
Unit 3: similar design to Quad Cities/Duane Arnold .hydrogen explosion yesterday with breach of secondary containment. Injecting seawater into the core
Boiling in the spent fuel pools – feeding as able with seawater.
I’ll provide more tomorrow if we get it.
- Important – Keep language professional, objective, avoid use of extreme opinion,careless hyperbole (enformable.com)
- April 1st, 2011 – Bet the Japanese wished they had used more of these… (enformable.com)
- March 11th, 2011 – Fukushima must not have indication of RCIC flow or cooling is not working (enformable.com)
- March 11th, 2011 – 4 Units on RCIC – 1 Unit Without AC – Different Unit With Active ECCS Due to High Containment Temperatures or Pressure (enformable.com)
- NRC “Talking Points” – Current as of March 17, 2011, 0600 EDT (enformable.com)
- Nuclear Industry on Shakey Ground – Reactors could fail during an earthquake, GE Hitachi says (enformable.com)
- March 13th, 2011 UPDATE from 07:30 telecon – Fukushima Daiichi – USS Ronald Reagan picking up airborne contamination (enformable.com)
- Unit 1 containment, detection of more than 10,000ppm of hydrogen (enformable.com)