Regarding the installation of the alternative cooling and purification
system of spent fuel pool of Unit 1-4 of Fukushima Daiichi Nuclear Power
Station, we compiled the result of analysis concluding that such system
is effective for stable cooling and that there is no safety issue, and
reported this to NISA.
(Previously announced on May 22, June 15, and July 13)
After that, as we partly reviewed the construction schedule after taking
in account of the actual site condition, we compiled the change and
reported this to NISA.
The altered context is as attached.
Appendix: Alteration of report with regards to installation of circulating
cooling system of spent fuel pool of Unit 1-4 of Fukushima
Daiichi Nuclear Power Station (summary) (PDF 130KB)