On June 1, 2011, we received the instruction document "Collection of
report on installment of treatment facility and storing facility of
water including highly concentrated radioactive materials at Fukushima 
Daiichi Nuclear Power Station"*1 from Nuclear and Industrial 
Safety Agency (NISA) of Ministry of Economy, Trade and Industry. 
Subject to this instruction, we put together a report on installment
of treatment facility and storing facility of water including highly
concentrated radioactive materials, and reported it to NISA.
(Announced on June 2 and 9, 2011)

NISA has confirmed the above mentioned report, and evaluated that,
with prevention of treatment facility leaks, maintenance of earthquake 
proof safety by preventive measures for falling over, etc, installments 
can be implemented as an emergency measure. Accordingly, we have
decided to start the commissioning using water including radioactive
materials, as soon as preparation is completed, based on the procedures 
we have reported. 

Also, we have received the instruction document "(Instruction)
Regarding installment of treatment facility and storing facility of
water including highly concentrated radioactive materials at 
Fukushima Daiichi Nuclear Power Station*2" on June 9.
We are to work appropriately, subject to this instruction. 
(Announced on June 9, 2011)

Based upon the above reported contents, we have been dealing with the
accumulated water containing highly concentrated radioactive 
materials in the Centralized Radiation Waste Treatment Facility.  As
we have confirmed that the whole water treatment facility is in the 
operatable condition, we would like to announce that we have summarized 
the situation of storing and treatment of accumulated water containing 
highly concentrated radioactive materials, and reported it to NISA,
subject to the instruction from NISA on June 9.

END 

Attachment: Situation of storing and treatment of accumulated water 
 including highly concentrated radioactive materials at 
 Fukushima Daiichi Nuclear Power Station (1st Release)

 
*1 Collection of report on installment of treatment 
facility and storing facility of water including highly concentrated 
radioactive materials at Fukushima Daiichi Nuclear Power Station 
(NISA No. 20, June 1, 2011)

We have provided a Japanese press release version of the instruction
document received from NISA.  However, at this time we have reserved
the right to not provide an English version due to potential
misunderstandings that may arise from an inaccurate rendering of the
original Japanese text.  
We may provide the English translation that NISA releases in our
press releases. However, in principle we would advise you to visit 
the NISA website for timely and accurate information.

*2 (Instruction) Regarding installment of treatment facility and 
storing facility of water including highly concentrated radioactive 
materials at Fukushima Daiichi Nuclear Power Station (NISA No. 6, 
June 8, 2011)

We have provided a Japanese press release version of the instruction 
document received from NISA.  However, at this time we have reserved 
the right to not provide an English version due to potential 
misunderstandings that may arise from an inaccurate rendering of the 
original Japanese text.  
We may provide the English translation that NISA releases in our 
press releases. However, in principle we would advise you to visit 
the NISA website for timely and accurate information.