1500 EDT
March 29, 2011
Briefing Sheet Fukushima Daiichi TEPCO injecting fresh water into Units 1, 2 and 3; and has transitionedto temporary electric pumps for injection (all three units); Actions underway to pump water from flooded turbine building basements into condensers/other tanks. TEPCO plans to inject water into U-1 SFP from Cement Pumper truck on 30, March. Lighting returned to U-4 control room, currently no access due to dose rates. TEPCO is considering spraying Zeolite on the outside and interior of the Rx Bldgs in an effort to minimize resuspension of fission products in the air but having difficulty planning application due to the elevated dose rates. Highly radioactive water (approx 100 R/hr) found in a "trench" (pipe and cable chase) outside Unit 2; source of water unclear. TEPCO stated that this water is not flowing into the ocean, though the water will overflow this trench if it rises about 1 meter (trench is 4 meters deep). There is water in the trenches outside of Units I and 3 as well. Actions have been taken, or are in progress, to preclude contaminated water in trenches from reaching the ocean (e.g., sandbags, etc.). TEPCO is planning to install equipment to inert Unit 1 by 31 March. One train of the Bechtel pumping system is being deployed to the site. Both barges are being moved to the site (10 hr cruise), intending to arrive Wednesday. Resupply water ship anchored at sea. The GOJ has requested help with shielding, removal of spent fuel, and robotics. The NRC Site Team indicates that TEPCO has contracted with the Shaw Company for decay heat removal systems and debris removal. NEI is serving as a focal point for collecting U.S. nuclear plant monitoring data in environmental samples, and is developing an online database with data from US plants. NEI database is available and being populated. NRC and other agencies have read access. The RST has provided a coordinated (GEH, EPRI, INPO, NR, DOE) set of recommendations pertaining to severe accident management strategies to the NRC team in Japan. Revisions to the severe accident management strategies are being considered in light of Unit 2 and Unit 3 containment conditions, and environmental release concerns. Any revision will be fully vetted with all parties. NRC continues to recommend filling containment. RST is updating recommendation to reflect current consensus. The PMT evaluated information from TEPCO and NISA regarding levels of plutonium sampled on site. The levels (5.4X10-1 Bq/kg) are very low, and below background levels applicable to the eastern range of the Rocky Mountains (in the US). ET director will provide PACOM the NRC's assessment of conditions at the Fukushim Dai-ichi plants during a 16:00hrs 29 March IPC call, and whether conditions are getting worse. Vince Holahan has arrived in Hawaii, and plans to meet with PACOM at 12:15hrs 29 March EST. The NRC/Consortium call has been re-established. The request has been made that the Site team act as a clearinghouse reviewer for consistency of request to avoid duplication. This will be shared with the other stakeholders to maintain a "single-list" to operate to. It was also requested that the call be moved to 1900 (EDT) to support having a Site Team member participate. IAEA Director General is convening a meeting of the member states next Monday (Tuesday?), regarding the events at Fukushima. Seeking additional insight regarding purpose and expected outcomes from Mark Schaeffer.
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