Due to the Tohoku-Chihou-Taiheiyou-Oki Earthquake which occurred on March 11, 2011, TEPCO's facilities including our nuclear power stations have been severely damaged. We deeply apologize for the anxiety and inconvenience caused.
With regard to the accident at Fukushima Daiichi Nuclear Power Station, on April 17, 2011, we have compiled the roadmap towards restoration from the accident and on July 19 we accomplished the Step1 target "Radiation dose is in steady decline". Then on December 16 we confirmed the accomplishment of the Step 2 target "Release of radioactive materials is under control and radiation doses are being significantly held down".
In addition, on December 21, 2011, we have compiled the "Mid-to-long-Term Roadmap toward the Decommissioning of Fukushima Daiichi Nuclear Power Units 1-4, TEPCO".
In addition to the maintenance of the plant's stable condition, we will implement Mid-to-Long Term countermeasures towards the decommissioning of Fukushima Daiichi Nuclear Power Units 1-4 to enable evacuees to return to their homes as soon as possible and reduce the anxiety of the people in Fukushima and the whole nation as soon as possible.
Below is the status of TEPCO's nuclear power stations (Fukushima Daiichi and Fukushima Daini).
* The updates are underlined.
[Fukushima Daiichi Nuclear Power Station]
・Unit 1 to 4: Abolishment (April 19, 2012)
・Unit 5 to 6: Outage due to regular inspections before the earthquake
- At 10:00 am on April 24, we started transferring the accumulated water from the basement of turbine building of Unit 6 to the temporary tanks.
- Because the pressure in the Primary Containment Vessel (PCV) of Unit 2 had a tendency to increase, we adjusted an exhaust flow rate from the gas control system of the PCV to about 38 m3/h from about 17 m3/h at 11:59 am on April 24 in order to decrease the pressure in the PCV.
[Fukushima Daini Nuclear Power Station]
・Unit 1 to 4: Shutdown due to the earthquake
- At the shallow draft quay of Fukushima Daini Nuclear Power Station, a worker from cooperative company engaged in marine soil covering work for Fukushima Daiichi Nuclear Power Station port was injured by being caught between a vessel and revetment (Uncontrolled area). At 10:25 am on April 17, the ambulance was called. At 10:50 am, the doctor-helicopter was called. At 11:15 am, the doctor-helicopter arrived at the site and the worker was transported to Iwaki Kyoritsu General Hospital at 11:41 am. The worker retains consciousness and no radioactive material was found on the body. As a result of having examined, the worker was given a diagnosis of as needing complete cure two months at present by "Pulmonary contusion, Frequent occurrence ribs bone fracture, Right hemopneumothorax, Traumatic pulmonary cyst and Bruised body". The worker is hospitalization medical treatment now and his condition is stable. The cause was assumed that the worker did not confirm the workflow and conduct a risk prediction activity because the worker judged that the work to undo a tangled mooring rope was easy. Besides, the leader of workers did not inform the primary contractor of the tangled rope and the work to undo the tangled rope, and we did not grasp this information. From the reasons, it was assumed that the worker entered the dangerous area between the ship and the pier and was injured. From now, through a safety instruction meeting before working, we strictly instruct workers not to enter the area between a ship and a pier in any work and strictly instruct primary contractors to indicate warning displays at the area. When a construction supervisor of our company receives a report of a rare improvement work from primary contactors, we make efforts to prevent such accidents by confirming the work contents and risks of the work and conducting a site survey if necessary.
Appendix:
Past Progress (As of 3:00 pm, on April 24, 2012) (PDF 302KB)
Appendix:
Past Progress (From March 11, 2011 to December 31, 2011) (PDF 460KB)
*
Revised past progress
