We are announcing the status of major inspections and restoration works and nonconformances 
at TEPCO's Kashiwazaki-Kariwa Nuclear Power Station after the Niigata-Chuetsu-Oki Earthquake. 

Inspection/Restoration Status

 ◇ Inspection and restoration completed between July 3 to July 9, 2009 
    (Completed on the following date) 

   - Unit No.2 Reactor recirculation piping preventive maintenance (Preventive maintenance 
     of branch pipe): 
       July 8 
   - Unit No.3 Seismic reinforcement works (Seismic reinforcement works for the roof truss 
     of the reactor building): 
       July 7 
   - Unit No.4 Main generator inspection (Rotor carrying in): 
       July 7 
   - On-site check, inspection and restoration of the oil protection bank for the transformer 
     (Unit No.3 Restoration work): 
       July 7 

 ◇ Inspection and restoration to be commenced between July 10 to July 16, 2009 
    (To be commenced on the following date) 

   - Unit No.1 Seismic reinforcement works (Unit No.1 and Unit No.2 Seismic reinforcement 
     works for stack):
       July 15 
   - Unit No.3 Seismic reinforcement works (Seismic reinforcement works for stack): 
       July 13

 ◇ Work Schedule of Major Inspection/Restoration from July 5 to August 1, 2009

   - Work Schedule of the Main Inspection/Restoration of the Kashiwazaki-Kariwa Nuclear 
     Power Station in Response to the Niigata-Chuetsu-Oki Earthquake (during 4 Weeks)
                                                                          ....Appendix*

(Reference) 
Nonconformances Found in the Inspection and Restoration Works Performed after the Niigata-
Chuetsu-Oki Earthquake

Based on the "Public Announcement Regarding Nonconformance Found in the Inspection and 
Restoration Works Performed after the Niigata-Chuetsu-Oki Earthquake", the Tokyo Electric 
Power Company, Incorporated (TEPCO) provides this announcement containing incidents 
information reported from July 2 to July 8, 2009. 

 ◇ Incidents Information (relating to the Chuetsu-Oki Earthquake)


    <Reports from July 2 to July 8, 2009>



 ◇ Other Findings
   - Information on Nonconformances (those related to: the Chuetsu-Oki Earthquake; 
     Grades As, A, B, C, D; and non-graded)

     * Numbers were corrected to reflect nonconformance incidents that had been 
       identified as not related to the Chuetsu-Oki Earthquake (3 cases). 

   - In response to the incident of hydrogen concentration increase in the off-gas 
     system that occurred at other utilities' units, we conducted replacement work 
     of the instrumentation piping for the hydrogen concentration gauge with the 
     purpose of early detection of hydrogen concentration increase, and have completed 
     the work on July 8, 2009.

Appendix: Work Schedule of the Main Inspection/Restoration of the Kashiwazaki-Kariwa Nuclear 
          Power Station in Response to the Niigata-Chuetsu-Oki Earthquake (during 4 Weeks)
                                                                               (PDF 100KB)