Top > Releases ･ Announcements > Fukushima Daiichi NPS Prompt Report > 2013 > Status of Pumping up of Groundwater from the Well Point at the East Side of Unit 1, 2 Turbine Building in Fukushima Daiichi Nuclear Power Station (Follow-up information)
This is follow-up information on the latest situation concerning the detection of high densities of Tritium and Strontium in the observation hole at the east side of the Unit 1-4 Turbine Buildings of Fukushima Daiichi NPS.
From August 15 to 17, groundwater was pumped up from 22 well points. At 9:00 AM today (on August 18), groundwater was pumped up from the 23rd well point, which was already drilled before a drilling machine was failed yesterday, and water transfer to the Unit 2 vertical shaft C was started.
Drilling of 24th and the following well points using an alternative machine is scheduled from August 19.
Water level of the groundwater observation hole No.1-8, which locates the sea side of the well point, after groundwater was pumped up from the well point is as follows.
<Groundwater observation hole No.1-8> (*The amounts are provisional value, since the reference altitude is still being confirmed)
- O.P. +2,750mm (as of 2:00 PM on August 15, previously announced)
1 well point has already installed
- O.P. +2,760mm (as of 2:00 AM on August 16)
1 well point has already installed
- O.P. +2,670mm (as of 2:00 PM on August 16)
13 well points have already installed
- O.P. +2,530mm (as of 2:00 AM on August 17)
13 well points have already installed
- O.P. +2,360mm (as of 2:00 PM on August 17)
22 well points have already installed
- O.P. +2,280mm (as of 2:00 AM on August 18)
22 well points have already installed
(Reference: Upper part of the ground improvement behind the bank protection O.P. +2,200)
© Tokyo Electric Power Company Holdings, Inc.
