Fukushima Daiichi NPS Prompt Report (Apr 10, 2013)Water Leak from the Underground Reservoirs in Fukushima Daiichi Nuclear Power Station (Follow-up Information No.30)
This is follow-up information regarding the water leak from the underground reservoirs at Fukushima Daiichi NPS.
Sampling has been performed in the groundwater bypass pump wells No.1-4 located in the east of the underground reservoirs No.1-3 for the purpose of evaluating the impact of contaminated water leakage from the underground reservoirs on the surrounding environment. The results are as follows.
- Pump well No.1
Chloride concentration: 40ppm
All β: Below the detection limit
- Pump well No.2
Chloride concentration: 16ppm
All β: Below the detection limit
- Pump well No.3
Chloride concentration: 65ppm
All β: Below the detection limit
- Pump well No.4
Chloride concentration: 9ppm
All β: Below the detection limit
*Detection limit: 2.0×10^-2 Bq/cm
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