Currently, a large quantity of radioactive wastewater exists inside the 
turbine building of Fukushima Daiichi Nuclear Power Station. In this 
regard, on April 10th, we received a direction from Minister of Economy, 
Trade and Industry to report on matters in connection with transfer of 
high level radioactive wastewater to the Centralized Radiation Waste 
Treatment Facility, such as necessity, assessment of safety, plans on 
permanent safety storage of wastewater and treatment facilities.
                                (Previously announced on April 15th, 2011)

Since we completed implementing measures to prevent leakage in the main 
process building of the Centralized Radiation Waste Treatment Facility, we 
compiled the details based on the direction given and reported to Minister 
of Economy, Trade and Industry on April 18th, 2011. Concurrently, the 
content of the report has been confirmed by Nuclear and Industrial Safety 
Agency.
                                (Previously announced on April 19th, 2011)

From April 19th, 2011, we have been continuously transferring high 
radioactive wastewater from the turbine building of Unit 2 to the Process 
Main Building of the Centralized Radiation Waste Treatment Facility.
Since the level of radioactive wastewater in the turbine building of Unit 
3 is increasing, we have been implementing prevention of leakage in the 
Miscellaneous Solid Waste Volume Reduction Treatment Building of the 
Centralized Radiation Waste Treatment Facility. 
As the prevention work at the Building was completed on May 16th, we 
compiled the details based on the direction given and reported to Minister 
of Economy, Trade and Industry. The content of the report has been 
confirmed by Nuclear and Industrial Safety Agency, and we were planning to 
start transferring high level radioactive wastewater from the turbine 
building of Unit 3 to the Centralized Radiation Waste Treatment Facility.
                                  (Previously announced on May 16th, 2011)

We had been transferring the high level radioactive wastewater to the 
Process Main Building and the Miscellaneous Solid Waste Volume Reduction 
Treatment Building. However, we suspended the transfer because at the 
Process Main Building the amount of wastewater almost reached the planned 
storage level and at the Miscellaneous Solid Waste Volume Reduction 
Treatment Building there was a possibility that the wastewater leaks to 
the adjacent underground corridor.
In such a situation, we reconsidered the water storage level in the 
Process Main Building and reported the result to Nuclear and Industrial 
Safety Agency under Ministry of Economy, Trade and Industry.
The content of the report is shown in the attachment.

(Attachment)
-Change in the storage level of waste water transferred to the Process 
 Main Building(PDF 22.2KB)