This technical briefing summarizes the status of 6 reactor units after an event. Unit 1 had damaged core and fuel integrity with a high but stable reactor pressure vessel temperature. Unit 2 had severe damage to the core and fuel with a stable reactor pressure vessel. Both Units 1 and 2 had around half of their fuel uncovered and were injecting freshwater into the reactor pressure vessel and containment vessel. Unit 3 also had damaged core and fuel with a stable reactor pressure vessel and was also injecting freshwater. Unit 4 was in outage with no fuel in the reactor. Units 5 and 6 were in cold shutdown being maintained using off-site power.

1. Technical Briefing Summary of reactor unit status Total Deposition & Layer Concentration April 12 th 2011 Miroslav Lipar

2. 04/12/2011 11:00 UTC 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 & RCS integrity RPV temperature high but stable RPV temperature stable RPV temperature stable Not applicable due to outage plant status Containment integrity No information Damage suspected Damage suspected AC Power AC power available - power to instrumentation – Lighting to Central Control Room AC power available – power to instrumentation – Lighting to Central Control Room AC power available – power to instrumentation – Lighting to Central Control Room AC power available – power to instrumentation – Lighting to Central Control Room Building Severe damage Slight damage Severe damage Severe damage Water level of RPV Around half of Fuel is uncovered Around half of Fuel is uncovered Around half of Fuel is uncovered Not applicable due to outage plant status Pressure of RPV Increasing Stable Stable CV Pressure Drywell Increasing Stable Stable Water injection to RPV Injection of freshwater – via mobile electric pump with off-site power Injection of freshwater – via mobile electric pump with off-site power Injection of freshwater – via mobile electric pump with off-site power Water injection to CV No information No information No information Spent Fuel Pool Status Fresh water spraying completed by concrete pump truck Freshwater injection to the Fuel Pool Cooling Line Freshwater injection via Fuel Pool Cooling Line and Periodic spraying Fresh water injected by concrete pump truck

3. 04/12/2011 11:00 UTC 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 Cold Shutdown Being maintained using off-site electrical power and existing plant equipment. Cold Shutdown Being maintained using off-site electrical power and existing plant equipment. RPV & RCS integrity Containment int. AC Power Building Water level of RPV Pressure of RPV Containment Pressure Water injection to RPV Water injection to CV Spent Fuel Pool Status Severe condition Concern No immediate concern

4. Iodine 131 – Total Deposition & Layer Concentration March 14 th – April 11 th , 2011 04/12/11 Miroslav lipar

5. Cesium 137 – Total Deposition & Layer Concentration March 14 th – April 11 th , 2011 04/12/11 Miroslav lipar