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 October 24th to October 30th, 2008 
    (Completed on the following date) 

   • Unit No.6 Seismic reinforcement works (Seismic reinforcement works for the roof truss of 
     the reactor building): 
      October 24th 
   • Unit No.6 Seismic reinforcement works (Seismic reinforcement works for exhaust stack): 
      October 29th 
   • Unit No.7 500kV power cable inspection: 
      October 24th 
   • Unit No.7 Seismic reinforcement works (Clearance of seismic reinforcement works equipment 
     and materials for exhaust stack): 
      October 26th 
   • Unit No.7 Seismic reinforcement works (Seismic reinforcement works for reactor building 
     overhead crane): 
      October 27th 

 ○ Inspection and restoration to be commenced between October 31st to November 7th, 2008 
    (To be commenced on the following date) 

   • Unit No.4 Inspection of power supply input transformer of the primary loop recirculation 
     system adjustable speed drive (Transportation into the factory): 
      November 5th 
   • Unit No.4 Stack inspection (Inspection of stack radiation monitor sampling pipe): 
      October 25th*
   • Unit No.4 Main exhaust duct inspection and restoration (Restoration of substruction): 
      November 4th 
   • Unit No.5 Stack inspection (Inspection of stack radiation monitor sampling pipe):
      November 6th 
   • Unit No.6 Stack inspection (Inspection of stack radiation monitor sampling pipe):
      November 6th 
   • Unit No.6 Seismic reinforcement works (Clearance of seismic reinforcement works equipment 
     and materials for exhaust stack):
      October 30th* 
   • Unit No.6 Seismic reinforcement works (Seismic reinforcement works for reactor building 
     overhead crane):
      October 31st 
   • Unit No.7 Reactor head reopening: 
      November 2nd 
   • Unit No.7 Confirmation of the control rod drive coupling (by underwater camera): 
      November 6th 
   • Unit No.7 Stack inspection (Inspection of stack radiation monitor sampling pipe):
      October 31st 
   • Unit No.7 Seismic reinforcement works (Verification test for reactor building 
     overhead crane):
      October 27th 
   • Unit No.7 System functional test (Interlock functional test for reactor protection 
     system): 
      November 1st 
   • Unit No.7 System functional test (Functional test for main control room emergency 
     circulation system): 
      November 2nd 
                                                         * Work schedules added this week.

 ○ Work Schedule of Major Inspection/Restoration from October 26th to November 22nd, 2008

    • 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 October 23rd to October 29th, 2008.

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


   < Reports from October 23 to October 29, 2008 >


  ○ Other Findings

   • Unit No.1 and 3
     Visual inspection was conducted for stack radiation monitor sampling pipes after 
     removing insulation. As a result of the inspection, damage was found on an intake 
     side pipe of sampling pump of Unit No.3, and a misalignment was found on the joint 
     of discharge side pipes of sampling pump of Unit No.1. These incidents did not lead 
     to any radiological impact to the environment.
     Subsequently, visual inspection was conducted for stack radiation monitor sampling 
     pipes from October 27th to October 29th, 2008 after removing insulation, and no 
     additional damage was found. Inspection will be continued as well as root cause 
     analysis of damages of Unit No.1 and 3.

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 45.6KB)