New Fukushima Tank Leaks, Levels As High As 1.8 Sv/h

Tepco announced three more tank leaks at Daiichi. Two are actually existing tank leaks that have worsened and one is a new one. The tank that has the worst change was H3B-Tank 4. It went from a 100 mSv/h detected leak on Aug 22 to a 1.8 Sv/h leak today. Leaks this high will complicate work to deal with the tanks. That level would be considered dangerously high inside the reactor building and would require workers to avoid that area. TEPCO did not announce any work to drain those tanks.

From TEPCO’s press release:

· H3 area A group No.10 tank bottom flange vicinity: (70μm dose equivalent rate) about 220mSv / h
same place and where when the inspection of the tank 22 (August, about 70mSv / h has been confirmed * 2)

· No.4 tank bottom flange near the H3 area B group: (70μm dose equivalent rate) about 1,800 mSv / h
same place and the place where when you inspect the tank on 22 (August, about 100mSv / h has been confirmed * 2)

· H4 ​​area Ⅱ group No.6 tank bottom: about 70mSv / h (70μm dose equivalent rate)

H3_tankmapAug31_2013

They also found a leaking pipe that read 230 mSv/h in the H5 tank group.
TEPCO’s press release: http://www.tepco.co.jp/cc/press/2013/1230181_5117.html

 

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