Top > Releases ･ Announcements > Fukushima Daiichi NPS Prompt Report > 2013 > Water Leak from the Underground Reservoirs in Fukushima Daiichi Nuclear Power Station (Follow-up Information No.114)
This is follow-up information regarding the water leak from the underground reservoirs at Fukushima Daiichi NPS.
The results of sampling performed in the underground reservoirs yesterday (April 29) are as follows.
- Drain holes of the underground reservoirs No.1-7
- Leakage detection holes of the underground reservoirs No.1-4 and 6
- Observation holes of the underground reservoirs (around reservoirs No.1-3): A1-A19
- Observation holes of the underground reservoirs (around reservoir No.6): B1-B3
- Observation holes on the sea side (1)-(6)
No significant change was found with the results obtained in the drain holes of the underground reservoirs No.1-7, the leakage detection holes of the underground reservoirs No.1-4 and 6 and the observation holes of the underground reservoirs (around reservoirs No.1-3 and 6) compared to the previous results.
As for the observation holes on the sea side (including the new sampling locations), the chloride concentration was 9-10ppm and the all β was below the detection limit.
Please visit our web page for the sampling results.
http://www.tepco.co.jp/en/nu/fukushima-np/f1/smp/2013/images/chosui_13043001-e.pdf
The water level, etc. of the underground reservoirs will continue to be intensively monitored.
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