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Press Release (Apr 15,2011)
Status of TEPCO's Facilities and its services after the Tohoku-Chihou-Taiheiyou-Oki Earthquake(as of 9:00AM)
  
Due to the Tohoku-Chihou-Taiheiyou-Oki Earthquake which occurred on 
March 11th 2011, TEPCO's facilities including our nuclear power stations 
have been severely damaged. We deeply apologize for the anxiety and 
inconvenience caused. 
 
Below is the status of TEPCO's major facilities. 
*New items are underlined 
 
[Nuclear Power Station]
Fukushima Daiichi Nuclear Power Station: 
   Units 1 to 3: shutdown due to the earthquake 
   (Units 4 to 6: outage due to regular inspections) 
 
*At 3:56 pm on April 14, water spray to the spent fuel pool of Unit 3 was 
 started with the concrete pumping vehicle and ended at 4:32pm. 
 
*On April 12th, in order to confirm the status of the inside of the spent 
 fuel pool, we collected approximately 200ml of water from the pool using 
 the concrete pumping vehicle. On April 13th, we conducted nuclide 
 analysis on them and detected Cesium-134, Cesium-137, and Iodine-131.We 
 are planning to conduct more detailed analysis hereafter. 
 
*We have detected plutonium from the soils collected at the site on March 
 21st, 22nd, 25th, 28th, 31st, and April 4th. For the purpose of securing 
 safety, we enhanced the environment monitoring within the site as well 
 as its surrounding area. Also, we have detected iodine, cesium, barium, 
 niobium, ruthenium, molybdenum, technetium, lanthanum, beryllium, and 
 silver. 
 On March 28th, we conducted uranium analysis on the soil collected at 
 the site. As a result, the same level of uranium 234, 235, and 238 as 
 the natural level were detected. 
 
*On March 20th, 21st, and 23rd to April 13th, we have detected 
 radioactive materials in the air which were collected at the site. The 
 data of detected three nuclides (Iodine-131, Cesium-134 and Cesium-137) 
 are released as fixed figures. Other nuclide figures are to be 
 re-evaluated based on improved measures for recurrence prevention which 
 have been prepared in accordance with a strong warning by NISA on 
 April 1st. 
 
*On March 21st and 23rd to April 13th, we have detected radioactive 
 materials in the seawater around the water discharge port of the plant. 
 The data of detected three nuclides (Iodine-131, Cesium-134 and 
 Cesium-137) are released as fixed figures. Other nuclide figures are to 
 be re-evaluated based on improved measures for recurrence prevention 
 which have been prepared in accordance with a strong warning by NISA on 
 April 1st. 
 
*On April 13th, we collected samples from seawater in the pit and in 
 front of the bar screen near the pit. As a result, we have detected 
 Iodine-131, Cesium-134 and Cesium-137 from the samples. We will 
 re-evaluate those samples for other nuclides as well. 
 
*We conducted nuclide analysis on subsurface water (sub drain) near the 
 turbine buildings and detected Iodine-131, Cesium-134 and Cesium-137 on 
 April 6th and 13th. As a radioactive dose of the sample collected on
 April 13th increased compared to that of April 6th, we received an oral
 instruction from Nuclear and Industrial Safety Agency to strengthen the
 monitoring. In response, we increased the frequency of the sampling of
 the subsurface water (sub drain) of Units 1 to 6 and deep well located
 in the station from once a week to three times a week. 
 
*From 0:30pm on April 13th, we conducted spraying dust inhibitor in order
 to prevent diffusion of radioactive materials on the ground. This
 attempt was conducted on a trial basis at the mountain side area of the
 common spent fuel pool in the range of approximately 1,6000m2. 
 
*From 10:17 to 0:25 pm on April 14th, an unmanned helicopter was flown
 over Unit 1 to 4, in order to check the condition of the reactor
 buildings and its surrounding area 
 
Fukushima Daini Nuclear Power Station: 
   Units 1 to 4: shutdown due to the earthquake 
 
Kashiwazaki Kariwa Nuclear Power Station: 
   Units 1, 5, 6, 7: normal operation 
   (Units 2 to 4: outage due to regular inspection) 
 
[Thermal Power Station] 
-Hirono Thermal Power Station Units 2 and 4: Shutdown due to the 
 earthquake 
-Hitachinaka Thermal Power Station Unit 1: Shutdown due to the earthquake 
-Kashima Thermal Power Station Unit 6: Shutdown due to the earthquake 
 
[Hydro Power Station] 
-Power supply has returned to normal and facilities damaged by the 
 earthquake are now being handled in a timely manner. 
 
[Impacts on Transmission Facilities] 
-Power supply has returned to normal and facilities damaged by the 
 earthquake are now being handled in a timely manner. 
 
[Avoidance of further Implementation on Planned Rolling Blackouts and
 Request for Conserving Electricity Consumption] 
 Currently, we are working to restore electricity supply after our nuclear 
 and thermal power facilities were severely damaged by 
 Tohoku-Chihou-Taiheiyou-Oki Earthquake. The widespread understanding and 
 cooperation of our customers to conserve electricity have contributed to 
 the improvement of this tight power supply-demand balance situation. 
 Amidst this backdrop, since the electricity supply will be able to 
 balance with the demand for the time being, we have decided not to 
 implement further rolling blackouts in principle. 
 However, we must sincerely ask for your continued cooperation in reducing 
 electricity consumption due to the possible increase in demand caused by 
 warmer weather or unexpected trouble at power stations that are currently 
 being restored to service. In case the electricity supply-demand balance 
 becomes tighter than expected, as stated, we may reluctantly restart the 
 implementation of rolling blackouts. We kindly ask for your cooperation. 
 We will do our best to maintain this policy of avoiding further 
 implementation of rolling blackouts during the summer. 
 
 
Appendix: Past Progress (PDF 138KB) 
 
* Revised past progress  
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