1. Unit 1 2 3 4
Power (MWe /MWth) 460/1380 784/2381 784/2381 784/2381
Type of Reactor BWR-3 BWR-4 BWR-4 BWR-4
Status at time of EQ In service – auto shutdown In service – auto shutdown In service – auto shutdown Outage
Core and fuel integrity Damaged Severe damage Damaged No fuel in the Reactor
RPV temperature high but
RPV & RCS integrity RPV temperature stable RPV temperature stable
stable Not applicable due to
outage plant status
Containment integrity No information Damage suspected Damage suspected
AC power available - Power to AC power available – power to AC power available – power
AC power available – Lighting
AC Power instrumentation – Lighting to instrumentation – Lighting to to instrumentation - Lighting
to Central Control Room
Central Control Room Central Control Room to Central Control Room
Building Severe damage Slight damage Severe damage Severe damage
Around half of Fuel is Around half of Fuel is Around half of Fuel is
Water level of RPV
shown uncovered (Stable) uncovered (Stable) uncovered (Stable)
Pressure of RPV Slightly decreasing Stable Stable
Not applicable due to
CV Pressure Drywell Decreasing trend Stable Stable outage plant status
Injection of freshwater – via Injection of freshwater – via Injection of freshwater – via
Water injection to RPV mobile electric pump with mobile electric pump with mobile electric pump with
diesel backup power diesel backup power diesel backup power
Water injection to CV No information No information No information
Freshwater injection via Seawater injection via Fuel
Fresh water spraying begun Freshwater injection to the
Spent Fuel Pool Status Fuel Pool Cooling Line and Pool Cooling Line and
using a concrete pump car Fuel Pool Cooling Line
Periodic spraying Periodic spraying
01/04/2011 11:00 UTC

2. Unit 5 6
Power 784/2381 1100/3293
Type of Reactor BWR-4 BWR-5
Status at the EQ occurred Outage Outage
Core and Fuel Severe condition
RPV & RCS integrity
Containment int. Concern
AC Power
No immediate
concern
Building
Cold Shutdown Cold Shutdown
Being maintained using off- Being maintained using off-
Water level of RPV
site electrical power and site electrical power and
existing plant equipment. existing plant equipment.
Pressure of RPV
Containment Pressure
Water injection to RPV
Water injection to CV
Spent Fuel Pool Status
3/31/2011 11:00 UTC

3. International Atomic Energy Agency
Cooling of BWR Design
Miroslav Lipar

4. 4 of 10 International Atomic Energy Agency

5. 5 of 10 International Atomic Energy Agency