NRC “Talking Points” – Current as of March 17, 2011, 0600 EDT

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NRC “Talking Points” – Current as of March 17, 2011, 0600 EDT

Reactor Status

* Fukushima Daiichi Units 1 – 6

* TEPCO is working to restore site power and anticipates restoration to Units 2,5, and 6 today and Units 1, 3, and 4 tomorrow.

Unit 1
Core damage occurred due to insufficient cooling water caused by loss of offsite power and onsite diesel generators following the tsunami

” As of 2200 JST (0900 EDT) on March 14, it is reported that sea water is being injected with reported stable cooling

* Containment described as “functional”

* Hydrogen explosion from overheated fuel-water reaction has damaged reactor building (secondary containment)

* The spent fuel pool level is unknown

* Radiation levels 150-1000 mrem/hour at 1000 EDT on March 16, 2011, at site gate. (Site gate is same for each unit.)

* Core cooling is via the core spray header.

Unit 2

* Core damage occurred due to insufficient cooling water caused by loss of offsite power and onsite diesel generators following the tsunami

* Reactor Core Isolation Cooling (RCIC) has failed

* Secondary containment: Cut hole in the side of the reactor building superstructure to reduce likelihood of hydrogen gas buildup

* Sea water injection restarted with core cooling reported as not stable

* Primary containment is intact

* Radiation levels 150-1000 mrem/hour at 1000 EDT on March 16, 2011, at site gate. (Site gate is same for each unit.)

* The spent fuel pool level is unknown. Some water is available as evidenced by steam emanating from hole.

Unit 3

* Core damage due to insufficient cooling water caused by loss of offsite power and onsite diesel generators following the tsunami

* Sea water is being injected with reported stable cooling

* Hydrogen explosion from overheated fuel-water reaction has severely damaged reactor building (secondary containment)

* Primary containment described as “functional”

* The spent fuel pool level is possibly drained – some evidence of steam.

* Radiation levels 150-1000 mrem/hour at 1000 EDT on March 16, 2011, at site gate. (Site gate is same for each unit.)

* Unit 3 is currently TEPCO’s priority (unclear whether reactor or spent fuel pool)

* Water cannon should be onsite soon (as of 0400 EDT)

Unit 4

* Unit was in a refueling outage at the time of the event and core was off loaded to the SFP

* First fire in the reactor building was a small generator lube oil fire. IAEA reports that fire was put out at 2200 EDT, March 14. ‘N Radiation levels 150-1000 mrem/hour at 1000 EDT on March 16, 2011, at site gate. (Site gate is same for each unit.)

* Second fire began at 1645 EDT, March 15, 2011 in reactor building. Fuel reported to be uncovered.

* Radiation level outside Unit 4 reported to be 30R/hour following second fire.

” High radiation dose rates measured between Units 3 and 4, source is suspected to be the Unit 4 spent fuel pool.

* The spent fuel pool’s ability to retain water is in doubt, no steam – likely dry.

Unit 5

* The reactor is defueled.

* IAEA Reports Temperature of pool at 64.5 degrees C at 1500 EDT, March 16, 2011.

* Unit 5 diesel generator is providing power to cool Units 5 and 6 spent fuel pools.

Unit 6

* The reactor is defueled.

* IAEA Reports Temperature of pool at 61.0 degrees C at 1300 EDT, March 16, 2011. Power to cool the Unit 6 spent fuel pool is being provided by the Unit 5 diesel generator.

Other Japanese Nuclear Sites:

* Fukushima Daini Units 1 – 4: As of 7:15 am on March 15 (Japan), Tepco press release reports reactors in cold shutdown and offsite power available.

• Onagawa Units 1 – 3: shutdown, stable, turbine building basement fire extinguished.

* Kashiwazaki Kariwa Nuclear Power Station (Advanced Reactors): Units 1, 5, 6, 7: normal operation / Units 2 to 4: regular outage

” Rokkasho: all units continue safe operations without malfunctions, impacts from earthquake quickly mitigated (emergency diesel generators used, spilt SFP liquid drained and recovered in liquid waste treatment)

Protective Action Recommendations

* For Fukushima Daiichi site, Japanese national government issued a protective action recommendation that instructed evacuation for local residents within a 20km radius of the site boundary and sheltering in place out to 30km for residents who stayed behind

* Japan has imposed no-fly zone (30km radius, altitude unlimited) over Daiichi plants.

* A RASCAL run at 06:54AM (EDT) on March 16, 2011 for hypothetical combined core based on the following assumptions: Units 2 & 3 each, 33% core melt & no containment; Unit 4, full core offload 100% melt in the Spent Fuel Pool (SFP) with no roof; wind direction from West Northwest blowing out to the ocean. Results: PAG exceded at 50 miles (80.5 km) with TEDE of 24.0 rem, and CDE thyroid of 130 rem.

* Based upon the degrading situation at the Daiichi plant, the US NRC recommends that Americans within 50 miles of the Daiichi plant to evacuate the area.

” The US State Department has approved voluntary authorized departure of family members at the U.S. Embassy in Tokyo, the U.S. Consulate in Nagoya and the Foreign Service Institute in Yokohama.

Meteorological Conditions:

Forecast meteorological data for the 24 hour period (until 1200 EDT on March 17, 2011) indicates wind headed offshore (from NW).

General Talking Points

* TEPCO and US Forces in Japan (USFJ) are working together to allocate firefighting and heavy equipment capable of pumping seawater from the ocean into containment.

o TEPCO appears to be supplying water by helicopter and water cannon.

o A list of additional equipment to provide for accident mitigation has been developed by NRC and provided to USAID.

o Five portable pumps arrived at the Daiichi facility Thursday (1130 SST) from Yokota Air Force Base. Additional equipment to connect pumps is being coordinated.

* Disaster Assistance Response Team arrived Sunday:

o 11 C-Cstaff are in Tokyo with the Ambassador and getting information from Japanese officials.

* NRC continues to develop projections of the accident’s progression, dose estimates and Q&As, including those addressing the safety of reactors in operation in the US.

* Government of Japan has accepted US offer to conduct aerial/ground monitoring and also requested potassium iodide tablets. DOE Aerial Measurement Teams have completed fly over the Daiichi site. Awaiting results.

* The NRC has been asked to provide recommendations for solutions to the spent fuel pool issues during conference call with NISA and TEPCO.

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