NISA - Nuclear and Industrial Safety Agency Press Releases

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

March 31, 2011
Nuclear and Industrial Safety Agency
Seismic Damage Information (the 64th Release)
(As of 08:30 March 31st, 2011)

Major updates are as follows.


Fukushima Dai-ichi NPS
- As the malfunction of the temporary motor-driven pump, which had been
injecting to the Spent Fuel Pool of Unit 2 since 09:25 March 30th, was
confirmed at 09:45 March 30th, the injection pump was switched to the
Fire Pump Truck. However, because cracks were confirmed in the hose
(12:47 and 13:10 March 30th), the injection was suspended. The injection
of fresh water resumed at 19:05 March 30th. (Till 23:50 March 30th)
- In order to prepare for transfer the stagnant water on the basement floor
of turbine building of Unit 2 to the Condenser, the water in the
Condensate Storage Tank is being transferred to the Surge Tank of
Suppression Pool Water. (From 16:45 March 29th)
- In order to prepare for transfer the stagnant water on the basement floor
of turbine building of Unit 3 to the Condenser, the water in the
Condensate Storage Tank is being transferred to the Surge Tank of
Suppression Pool Water. (From 17:40 March 28th)
- Spray of fresh water (Around 140t) over the Spent Fuel Pool of Unit 4
using Concrete Pump Truck was carried out. (From 14:04 till 18:33 March
30th)
- On March 28th, the stagnant water was confirmed in the Main Building
of Radioactive Waste Treatment Facilities. As the result of analysis of
radioactivity, the total amount of the radioactivity 1.2?10^1 Bq/cm3 in the
controlled area and that of 2.2?101 Bq/cm3 in the noncontrolled area were
detected in March 29th.



Fukushima Dai-ni NPS
- Around 17:56 March 30th, a smoke was rising from the power
distribution panel on the first floor of the turbine building of Unit 1.
However, when the power supply was turned off, the smoke stopped to
generate. It was judged by the fire station at 19:15 that this event was
caused by the malfunction of the power distribution panel and was not a
fire.
- The Residual Heat Removal System (B) to cool the reactor of Unit 1
became to be able to receive power from the emergency power supply as
well as the external power supply. This resulted in securing the backup
power supplies (emergency power supplies) of Residual Heat Removal
System (B) for all Units. (14:30 March 30th)


2. Action taken by NISA
(March 29th)
- The "Team to Assist the Lives of the Nuclear Accident Sufferers"
established to strengthen the system to assist the nuclear accident
sufferers carried out visits etc. to relevant cities, towns and villages.

...

http://www.nisa.meti.go.jp/english/files/en20110401-1-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

English releases are falling far behind again:

Japanese to English translation
Earthquake Information (Part 65)
(As of March 31 15:00)

1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
Unit 1 - In preparation for transfer to the condenser turbine building underground water reservoir, surge tank during transport Sapuresshonpuru Wed condensate storage tank water. (12:00 - 31)
• To cool the spent fuel pool Unit 1, starting with mobile concrete pump discharge (freshwater) (31 13:03)
Unit 3 - The complete transfer to the water surge tank Sapuresshonpuru Wed condensate storage tank. (31, 28 8:37 - 17:40)
The main building - the process is transferred to storage tanks at the facility and centralized environments distilled water reservoir in the pump shaft provisional No. 1, from the top level in the shaft approximately-0.14m-1.14m 尐 reduced to approximately (9, 31: 20:00 to 11:25)
2. Industrial Safety Relationship
See Appendix
<The possibility of exposure>
1. Exposure of residents
Until March 29 for the screening carried out at 106,095 people in Fukushima Prefecture. Of these, 100,000 cpm of the people who showed people were more than 102, 100,000 cpm for the dressing room and who also showed the values ​​above were measured again, 100,000 cpm 尐 reduced to below health did not affect the case.
2. Employee exposure
Employees were working in the Fukushima Daiichi Nuclear Power Station workers 100mSv not exceed, in total 20.
...
http://www.meti.go.jp/press/20110331008/20110331008-1.pdf

Earthquake Information (Part 66)
(As of April 1 09:00 30 mins)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
• About the spent fuel pool at Unit 1 of about 90t mobile concrete pump discharge (freshwater) (31, 13:03 to 16:04)
• For Unit 3 spent fuel pools, concrete pump trucks (50t / h) is about 105t discharge (freshwater) (31, 16:30 to 19:33).
- No. 4 on the spent fuel pool, concrete pump trucks (50t / h) Hazime Hiraku discharge (the day 8:25)
- U.S. military ship loaded with fresh water barge used to cool the Reactor (barges), being towed on a Maritime Self-Defense Force warship vessels, docked at the port dedicated power plant (15:42, 31.)
○ 福島第二原子力発電所
Vehicles entering the campus from the west gate is locked to one car managed 街宣 (13:08 31 days) and then run the premises, evacuate the gate (around 1:20 p.m., 31). On this matter to the police report Fukushima. The gate for the car after leaving 街宣, Tokyo Electric Power (Co) blocked by vehicles.
2. Industrial Safety Relationship
See Appendix
3. Responses, such as NISA
- Nuclear Safety Agency, Tokyo Electric Power (stock) of the entry of vehicles on 福島第二原子力発電所 街宣 to 31 days, as verbal instructions relating to the completeness and physical protection measures.

- Nuclear Safety Agency, Tokyo Electric Power (stock) of the completeness as a reminder of the radiological control personnel.
- Nuclear Safety Agency, Tokyo Electric Power (stock) of the reprimand to take appropriate actions for errors nuclide analysis.
<Exposure and employees>
Employees were working in the Fukushima Daiichi Nuclear Power Station workers 100mSv not exceed, in total 21
...

http://www.meti.go.jp/press/2011/04/20110401003/20110401003-1.pdf

Japanese to English translation
Earthquake Information (Part 67)
(Currently 3:30 pm on April 1)


1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
• For Unit 2, in preparation for transfer to the underground reservoir of water condenser turbine building, water and transferred to a surge tank Sapuresshonpuru Wed condensate storage tank. (Sun 29 Sun 16:45 a - 11:50)
- Unit 2 spent fuel pool and start fresh by injecting an electric pump for temporary spent fuel cooling system (14:56 1st)
• For Unit 4, concrete pump trucks (50t / h) is about 180t discharge (freshwater) (8:28 to 14:14 daily)
Started to transport fresh water from the filtrate tank barges (15:58 1st). Then interrupted by the failure of the hose (16:25 1st).
2. Industrial Safety Relationship
See Appendix
<The possibility of exposure>
1. Exposure of residents
Until March 30 for the screening carried out in Fukushima Prefecture, 110,340 people. Of these, 100,000 cpm of the people who showed people were more than 102, 100,000 cpm for the dressing room and who also showed the values ​​above were measured again, 100,000 cpm 尐 reduced to below health did not affect the case.

2. Employee exposure and
About 35 minutes at 11 - April 1, or for shore hose rework the U.S. military barge ship
When they got on the boat, fell into the sea one worker. Immediately surrounding the rescue workers
Are, and there was no injury, there have been some surface contamination, washing in shower
Decontamination was flowing. ※ pollution in the nasal smear were identified.
Nasal smear ※: radioactive material was collected in the nasal cavity, estimated the presence of the body ingestion.
<Directions to the food and drink>
- Renewal of the drinking water limits (currently 01 April 9:00)
...

http://www.meti.go.jp/press/2011/04/20110401014/20110401014-1.pdf

Link to english versions of release 65 http://www.nisa.meti.go.jp/english/files/en20110402-1-1.pdf and release 66 http://www.nisa.meti.go.jp/english/files/en20110402-2-1.pdf
link to english release 67: http://www.nisa.meti.go.jp/english/files/en20110403-2.html

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Part 68)
(currently the 8th February 4th 2:30)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
• For Unit 2, in preparation for transfer to the underground reservoir of water condenser turbine building, water and transferred to a surge tank Sapuresshonpuru Wed condensate storage tank. (March 29 - April 1 11:50 16:45)
- Unit 2 spent fuel pool to about temporary electric pump fresh water cooling system for the spent fuel injection 70t (14:56 to 17:05 daily).
• For Unit 4, concrete pump trucks (50t / h) is about 180t discharge (freshwater) (01 April 8:28 to 14:14)
Started to transport fresh water from the filtrate tank barges (15:58 1st). After failure of the hose (out), interrupted by the (daily 16:25).
- This set has been monitoring post set up near the plant site boundary (1 № ~ 8) recovery (March 31). Reading is scheduled for once a day.

2. Industrial Safety Relationship
See Appendix

...

http://www.meti.go.jp/press/2011/04/20110402001/20110402001-1.pdf

Link to english version: http://www.nisa.meti.go.jp/english/files/en20110403-3.html

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Part 69)
(currently 02 April 16:00)

Changes from the previous below.

1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
• For Unit 2, which contains the power cables in the pit near the intake, 1000mSv / length about the concrete portion of the pit side, and that water has accumulated more than 20cm has a crack at, from that portion Confirmed that the water leaked into the sea (around 9:30 on April 2.)
• For Unit 3, the mobile concrete pump discharge (freshwater) (52 minutes at 9:00 on April 2 at 12 - 54 minutes).
- U.S. military ship loaded with fresh water barge used to cool the reactor and the second ship (barge) being towed to the MSDF vessels, docked at private port Fukushima Daiichi Nuclear Power Station (02 April 9:10).
- U.S. Army barge (the first one vessel), the resumption of water injection into the filtrate tank (02 April 20:10 min.)
2. Industrial Safety Relationship
See Appendix
3. Support NISA
• For spills into the sea of liquid containing radioactive material from the vicinity of the intake of Unit 2 nuclear power plant Fukushima Daiichi, to conduct analysis of radionuclide liquid samples, as well as facilities have been found leaked this time around Unit 2 Verbal instructions to strengthen the monitoring of water collected in more places in the vicinity of the facility and make sure that there is no point.

<the possibility of exposure>
Employee exposure and
11:35 - 01 April at around the square to the boat from the shore for the boat barge hose rework the U.S. military
Into when Ri, one fell into the sea workers. Surrounding the rescue workers immediately, only
There was no external contamination and is, just in case, internal Horubodikaunta
Plans to confirm the capture

...

http://www.meti.go.jp/press/2011/04/20110402003/20110402003-1.pdf

english version : http://www.nisa.meti.go.jp/english/files/en20110404-1-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
03 April 2011
NISA
Earthquake Information (Report No. 70)
(current April 3, 8:00)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
- Unit 1, to confirm the position of mobile concrete pump to discharge the spent fuel pool, drainage study (02 April 17:16 to 17:19).
• For Unit 2, in preparation for transfer to the condenser turbine building underground water reservoir begins water storage tanks to transport water from the condenser condensate (02 April 17:10).
For Unit 2 -, cameras to monitor the water level of pit and turbine building basement trench (April 2)
2. Industrial Safety Relationship
See Appendix
<More>
- March 28 - March 30, in the town community center and village office Iidate Kawamata, 0 to conduct the inspection of 946 names of the thyroid for children 15 years old. Level was not a problem.

...
http://www.meti.go.jp/press/2011/04/20110403001/20110403001-1.pdf

english translated version: http://www.nisa.meti.go.jp/english/files/en20110404-2-1.pdf


Japanese to English translation
03 April 2011
NISA
Earthquake Information (Part 71)
(currently 3:30 pm on April 03

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
• 1 to No. 4 in, light will be part of the turbine building (2 days)
• 1 to No. 3 in order to switch from external power supply temporary power to the electric pump is used to injection of fresh water to the reactor to carry out the injection of fresh water reactor temporarily switch to the fire pump. Currently being carried out by injection of fresh water into the reactor by an electric pump powered from an external source.
(injection of fresh water by the time fire pump)
Unit 1: 10:42 to 11:52 3 days
Unit 2: 10:22 to 12:06 3 days
Unit 3: 10:03 to 12:16 3 days
(switching to an external supply of fresh water injected into the reactor pressure vessel)
Unit 1: 3 12:02
Unit 2: 3 12:12
Unit 3: 3 12:18
- As a measure to prevent water leakage into the water piled up in the No. 2 pit near a bar screen, and disrupted water supply to the crest of the trench, polymers and other inputs (03 April 13:47 14:30).
- U.S. Army barge ship (boat No. 2) barges from ship (boat No. 1) to transport fresh water (09:52 to 11:15 3 days)
• During the transfer of Unit 4 in the turbine building to the main building of the trapped water in the building process intensive environment facility (April 2).
2. Industrial Safety Relationship
See Appendix
...

http://www.meti.go.jp/press/2011/04/20110403002/20110403002-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
04 April 2011
NISA
Earthquake Information (Part 72)
(current April 4 8:00

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
- Unit 1, in preparation for transfer to the underground reservoir of water condenser turbine building started to transport water to condensate storage tank of the condenser (03 April 13:55).
- As a measure to prevent water leakage into the water piled up in the No. 2 pit near a bar screen, and disrupted water supply to the crest of the trench, sawdust, absorbent polymers, put a newspaper cut-treated (April 03 13:47 to 14:30).
For Unit 2 - tracer (bath) water pipe trench around 13kg input from the pit (7:08 to 7:11 on April 4.)
? For Unit 4, concrete pump trucks (50t / h) of about 180t freshwater discharge (April 03, 17:14 to 22:16)
2. Industrial Safety Relationship
See Appendix

...

http://www.meti.go.jp/press/2011/04/20110404001/20110404001-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Part 73)
(currently 04 April 15:00)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
- Unit 2 spent fuel pool, a freshwater electric pump implanted for temporary spent fuel cooling system (04 April 11:05 to 13:37)
- From 02 April, I was transferred to No. 4 in the turbine building of the water pool in the main building of the building process more centralized environment, because the water level rose from No. 3 shaft of the trench 03 April , interrupting the transport route for the sense of what is unknown (04 April 9:22)
2. Industrial Safety Relationship
See Appendix
<the possibility of exposure>
1. Exposure of residents
In Fukushima Prefecture, on April 2 to carry out screening for 122,613 people. Of these, 100,000 cpm of the people who showed people were more than 102, 100,000 cpm for the dressing room and who also showed the values ​​above were measured again, 100,000 cpm 尐 reduced to below health Did not affect the case

...

http://www.meti.go.jp/press/2011/04/20110404006/20110404006-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Part 74)
(Currently 00 minutes at the 8th April 5)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
? To cool the spent fuel pool at Unit 3, conducted by mobile concrete pump discharge (04 April 17:03 to 19:19).
Wed - Low-level residence in the building process intensive environment facility (approx. 10,000 t) for the first begin the release of one pump outlet from the southern area (April 4, 19:03), and all ten more carried out by a pump discharge (same day 19:07.)
- Low levels of groundwater in the No. 5 and No. 6 Sabudorenpitto (about 1500t) released into the sea via Hazime Hiraku the outlet (04 April 21:00).

2. Industrial Safety Relationship
See Appendix

...

http://www.meti.go.jp/press/2011/04/20110405002/20110405002-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Report No. 75)
(currently 05 April 16:00)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
Holes in two places - near the No. 2 pit near the bar screen, tracer injected fluid, make sure that the sea washed away from the crack (05 April 14:15). Coagulant to prevent water leakage around the open pit hole (water) start of infusion (05 April 15:07).
* One additional pump to transfer water from the condensate storage tank No. 2 condenser (two in total 30m3 / h) (05 April around 15:40.)
2. Industrial Safety Relationship
See Appendix
...

http://www.meti.go.jp/press/2011/04/20110405010/20110405010-1.pdf

Earthquake Information (Part 76)
(currently 06 April 8:00)

1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
? For Unit 2, where two holes in the vicinity of the pits around the bar screen, the tracer is injected, make sure to spill into the sea from the crack (05 April 14:15). Coagulant to prevent water leakage around the open pit hole (water) start of infusion (05 April 15:07). Ensure that stopped the outflow of water (around 06 April 5:38.)
? For Unit 4, concrete pump trucks (50t / h) of fresh water discharge (April 05, 17:35 to 18:22).
2. Industrial Safety Relationship
See Appendix
3. Support NISA
? For advance notification to local governments according to the measures associated with the release of radioactive material that might affect the environment Fukushima Daiichi nuclear power plant, issued a directive document.

...
http://www.meti.go.jp/press/2011/04/20110406002/20110406002-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Part 77)
(now 2:30 pm April 6)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
? For Unit 2, where two holes in the vicinity of the pits around the bar screen, the tracer is injected, make sure to spill into the sea from the crack (05 April 14:15). Coagulant to prevent water leakage around the open pit hole (water) start of infusion (05 April 15:07). Ensure that stopped the outflow of water (around 06 April 5:38.) In addition, the water level of the turbine building, make sure not to rise.
2. Industrial Safety Relationship
See Appendix

...

http://www.meti.go.jp/press/2011/04/20110406005/20110406005-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Part 78)
(Currently 07 April 8:00)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
- Intended to reduce the possibility of hydrogen burning in the Unit 1 reactor containment vessel, the nitrogen filled to the start of the operation the reactor containment vessel (06 April 22:30).
? Check the start of nitrogen inclusion of the Unit 1 reactor containment (April 7, 1:31.)
- Ensure that pollution from runoff and stopped the pit No. 2 near the bar screen. Furthermore, where was leaked, and the rubber plate fixture (bar Tsukkae) measures to stop the water (April 06, 13:15 finish.)
? For Unit 3, concrete pump trucks (50t / h) Hazime Hiraku freshwater discharge (April 7, 6:53)
From the soil - on the grounds of Fukushima Daiichi Nuclear Power Station, Sunday, March 25 (4 points) 28 and 3 (3 points), collected samples (seven samples total) in, 238Pu (plutonium), 239Pu (plutonium), 240Pu (plutonium) detected (published 06 April 18:30 TEPCO). The detected concentrations of plutonium, the previous (published March 28) fallout observed in Japan in the past atmospheric nuclear testing in the same manner as (radioactive fallout), and comparable with levels in normal circumstances the human body in which there is no problem.
- To prevent pollution from runoff harbor dedicated work carried out using a water stop large sandbags around the power plant south breakwater (April 05, 15:00 to 16:30).
- Approximately 600 square feet of mountain ranges shared pool, spray on a trial basis to prevent anti-splash dispersal of radioactive material to the ground (April 5, April 6).
2. Industrial Safety Relationship
See Appendix

<More>
- Nitrogen filled to the conduct of the Unit 1 reactor containment, nuclear safety
Toukyoudenryoku instructions below for the three points from NISA (April 06, 12:40).
Properly manage the plant parameters ①, should ensure that safety in response to changes
To ensure that appropriate measures be taken to Ru. ② engaged in such work
Be carried out to establish a system to ensure the safety of other workers. The nitrogen-filled ③
Can not be denied the possibility of a gas leak outside the reactor containment vessel
From the monitoring carried out to ensure, by further strengthening, nitrogen filled
Investigated and confirmed by the release and diffusion of radioactive materials associated with public information
Endeavor to make.

...

http://www.meti.go.jp/press/2011/04/20110407001/20110407001-1.pdf


Japanese to English translation
Earthquake Information (Part 79)
(currently 3:30 pm on April 07)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
? For Unit 2 spent fuel pool coolant from freshwater spent fuel pool cooling system (about 36t) (April 07, 13:39 to 14:34)
? For Unit 3, concrete pump trucks (50t / h) fresh water (about 70t) drainage (April 07, 06:53 to 08:53)
2. Industrial Safety Relationship
See Appendix

...
http://www.meti.go.jp/press/2011/04/20110407006/20110407006-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Report No. 80)
(Current April 08, 8:00

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
? For Unit 4, concrete pump trucks (50t / h) of about 38t fresh water discharge (April 07, 18:23 to 19:40).
2. Industrial Safety Relationship
See Appendix
3. Other damage
- July 4 pm, Sat dump in northern Fukushima Daiichi Nuclear Power Station campus, one for the name became ill workers were making sandbags, J is conveyed to the village, no contamination by physical survey After confirmation, was taken to hospital by ambulance Iwaki Kyoritsu.
4. Support NISA
The local nuclear emergency response headquarters,20-30km for a short local residents, published newsletter No. 3 (April 7).

...

http://www.meti.go.jp/press/2011/04/20110408004/20110408004-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Part 82)
(Currently the 8th September 4 12:00)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
? For Unit 3, the spent fuel pool concrete pump trucks (50t / h) injection of fresh water (about 75t) (April 08, 17:06 to 20:00).
* Approximately 500m2 mountain range shared pool, spray on a trial basis to prevent anti-splash dispersal of radioactive materials in the ground (April 8).
11:32 - 07 April by the earthquake that occurred off Miyagi Prefecture, and drainage facilities in centralized environments resume work had been suspended (April 08, 14:30).
2. Industrial Safety Relationship
See Appendix


...

http://www.meti.go.jp/press/2011/04/20110409001/20110409001-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Part 83)
(currently 3:30 pm on April 9)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
No. 2 - On completion of the transfer to the condensate storage tank from the condenser (09 April 13:10)
2. Industrial Safety Relationship
See Appendix

...

http://www.meti.go.jp/press/2011/04/20110409004/20110409004-1.pdf

I presume that this means transfer of radioactive liquid from the Unit 2 condenser to the storage tank was completed at 13:10.

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Part 84)
(currently the 8th October 4th 2:30)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
Unit 4 - On, for the spent fuel pool cooling, concrete pump trucks with water cannon (about 90t) conduct (April 09, 17:07 to 19:24).
- low-level groundwater discharge end at No. 5 and No. 6 Sabudorenpitto (about 1300t) (09 April 18:52).
19:09 am - minutes April 09, and sick of one individual partner companies in the cable was going to work in the building wearing full masks, water treatment shifted the foot manhole cover outside the building To step into for the injured, transported to the hospital. Examination results, "right knee contusion, " "suspect right knee medial collateral ligament injury" diagnosis. The body of the survey results, it was confirmed that no contamination.
2. Industrial Safety Relationship
See Appendix
...

http://www.meti.go.jp/press/2011/04/20110410001/20110410001-1.pdf


Earthquake Information (Report No. 85)
(currently 3:30 pm on April 10)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
- Unit 1, completed the transfer to the condenser condensate storage tank (10 April
09:30)
? For Unit 2 spent fuel pool from the spent fuel pool cooling system, light
Irrigation water (about 60t) (April 10, 10:37 to 12:38)
- a shared pool of approximately 550m2 with mountain ranges, dispersal of radioactive materials to prevent fly of the ground
Diffuse scattering experimental inhibitor (April 10)
2. Industrial Safety Relationship
See Appendix

...

http://www.meti.go.jp/press/2011/04/20110410003/20110410003-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Part 86)
(Current April 11, 8:00)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
? For Unit 3, concrete pump trucks (50t / h) of about 80t fresh water discharge (April 10, 17:15 to 19:15)
- Low-level retention for water facilities in the building process mainly focused environment, we began releasing the first single from the waters of the south pump outlet (04 April 19:03), and the further release of all 10 pumps Implementation (04 April 19:07), and release into the ocean to stop working due to water pump 40 minutes to 17 o'clock on April 10, being carried out to confirm the remaining water (total emissions of about 9,070 t).
Heavy Equipment - by remote control, carry out the removal of debris (April 10).
Minutes around 10:11 am - April 10, felt sick because of one individual partner companies had been working in the yards drain hoses laying Unit 2, J then transported to the village, at 2:00 pm yesterday 27 minutes 総合磐城共立病院 conveyed by ambulance. The deposition of radioactive material was found on the body is not.
2. Industrial Safety Relationship
See Appendix

...
http://www.meti.go.jp/press/2011/04/20110411003/20110411003-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Part 87)
(Current April 11, 15:00

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
- No. 1 through 4, in order to assess the reactor building, carried out by helicopter radio movie (15:59 to 16:28 on April 10.)
? Completion of a double silt fence installed to prevent spread of contaminated water in south breakwater (April 11, 10:45).
2. Industrial Safety Relationship
See Appendix
3. Responses, such as NISA
Paragraph 1 of Article 67 under the Reactor Regulation Law, for transport to the central building waste water has been detected with high radiation doses that are stuck in Fukushima Daiichi Nuclear Power Station, the necessity, safety Pertaining to the assessment, issue a directive document for the collection of reports on the policies pertaining to wastewater treatment facilities and permanent storage.

...

http://www.meti.go.jp/press/2011/04/20110411007/20110411007-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Part 88)
(Current April 12, 8:00

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
The two earthquakes - as well as external power is lost down the Unit 1 reactor containment inclusion of nitrogen injection and an issue of fresh water into the reactor pressure vessel and No. 3 (17 April 11 : 16 days).
Recovery Unit 1 external power supply - (April 11, 17:56).
* 1 to restart the reactor pressure vessel water injection of fresh water and a No. 3 (April 11, 18:04).
Nitrogen filled - start of Unit 1 reactor containment (April 11, 23:34).
- a shared pool of approximately 1,200 m2 mountain range, anti-splash spray on a trial basis to prevent dispersal of radioactive materials in the ground (April 11, 12:00 to 13:00).
? Check sample outlet building fire from No. 4 (April 12, around 6:38.) Initial results of the fire fighting and make sure there is no fire and smoke (the day before 7:00.)
2. Industrial Safety Relationship
See Appendix
3. Employee exposure and
? The employees were working in Fukushima Daiichi Nuclear Power Station 100mSv Of the total 21 workers in excess of three children referred to the Institute of Medicine re-radiation on April 11, three health also There was no problem. In addition, symptoms such as erythema and skin burns to both legs two local exposure was not allowed.

...

http://www.meti.go.jp/press/2011/04/20110412002/20110412002-1.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

April 12, 2011
INES (the International Nuclear and Radiological Event Scale) Rating on
the Events in Fukushima Dai-ichi Nuclear Power Station
by the Tohoku District - off the Pacific Ocean Earthquake


The Rating of the International Nuclear and Radiological Event Scale (INES)
on the events in Fukushima Dai-ichi Nuclear Power Station (NPS), Tokyo Electric Power Co. Inc. (TEPCO), caused by the Tohoku District - off the Pacific Ocean Earthquake is temporarily assessed as Level 7, considering information obtained after March 18th.
However, the amount of discharged radioactive materials is approximately 10
percent of the Chernobyl accident which was assessed on the same level.


1. INES
INES is the rating, which International Atomic Energy Agency (IAEA)
and Nuclear Energy Agency, Organization for Economic Cooperation and
Development (OECD/NEA) established and proposed to the Member
States in March 1992, in order to indicate the impact on safety by the
individual event in a nuclear facility and so on. Japan has also utilized it
since 1 August 1992.

2. Events in Fukushima Dai-ichi NPS, TEPCO, by the Tohoku District - off
the Pacific Ocean Earthquake
On 18 March, the ratings of the events in Fukushima Dai-ichi NPS
by the Tohoku District - off the Pacific Ocean Earthquake were informed
to be temporarily assessed as Level 5, considering information obtained
before March 18th. However, Nuclear and Industrial Safety Agency
(NISA) estimated the total amount of discharged radioactive materials
from the reactors of Fukushima Dai-ichi NPS to the air, making a trial
calculation using the result of analysis of the situation of the reactors and
so on, which was carried out by Japan Nuclear Energy Safety
Organization (JNES). This estimation resulted in the value
corresponding to Level 7 of INES rating*, as listed in the following table..

* The value representing radiation impact, which is converted to the
amount equivalent to 131I (Iodine), exceeds several tens of thousands
of tera-becquerel (of the order of magnitude as 1016 Bq).

In addition, Nuclear Safety Commission of Japan (NSC) also
estimated and announced the result of the trial calculation in the current
stage regarding the total amount of discharged radioactive materials to
the air, which had been being carried out in the Commission. This trial
calculation is counted backward from the results of monitoring data of 131I
and 137Cs (Caesium) as the total amount of the discharge from the
Fukushima Dai-ichi NPS, This results in the value corresponding to Level
7 of INES rating as well.

Assumed amount of the discharge
from Fukushima Dai-ichi NPS
（Reference）
Estimated by NISA/ Announced by NSC/ Amount of thedischarge from the Chernobyl accident


131I ? (a) 1.3?10^17 Bq / 1.5?10^17/ Bq 1.8?10^18 Bq
137Cs 6.1?10^15 Bq / 1.2?10^16 Bq/ 8.5?10^16 Bq
（Converted value to 131I）? (b) 2.4?10^17 Bq / 4.8?10^17 Bq / 3.4?10^18 Bq
(a) + (b) ... 3.7?10^17 / Bq 6.3?10^17 Bq / 5.2?1018 Bq

（Notes）The conversion of the values to be equivalent to radiation impact
of 131I regarding the NISA?s estimation and the NSC?s
announcement were carried out by NISA in accordance with the
INES User?s Manual.

Although Level 7 is the highest level of INES rating, it is estimated
that the amount of discharged radioactive materials to the environment in
the current stage is approximately 10 percent of the Chernobyl accident,
which was assessed on the same level in the past.

3. Procedures to be taken
This information is about the result of the total amount of the
discharge from Fukushima Dai-ichi NPS in the current stage. As
radioactive materials are being released to the environment, NISA will
continuously gather and evaluate information.
In addition, the official level of INES will be determined, considering
the technical evaluation from specialist view points made by INES
Evaluation Subcommittee (Chairman: Dr. Naoto Sekimura, Professor of
University of Tokyo, Nuclear Professional School Engineering,
Department of Nuclear Engineering and Management), which set up in
the Nuclear and Industrial Safety Subcommittee of the Advisory
Committee for Natural Resources and Energy, after the recurrence
prevention measures are confirmed based on the concrete causes found.
（Contact Person）
Mr. Toshihiro Bannai
Director, International Affairs Office,
NISA/METI

http://www.nisa.meti.go.jp/english/files/en20110412-4.pdf

 

[Ronan Kelly]

Re: NISA - Nuclear and Industrial Safety Agency Press Releases

Japanese to English translation
Earthquake Information (Part 89)
(currently 3:30 pm on April 12)

Changes from the previous below.
1. Related nuclear power plant
○ Fukushima Daiichi Nuclear Power Station
Approximately 500m2 in a shared pool - mountain ranges, start spraying on a trial basis to prevent anti-splash dispersal of radioactive materials in the ground (April 12).
Check the ignition ? 1 to No. 4 from the outlet sampling building (April 12, around 6:38.) Initial results of the fire fighting and make sure there is no fire and smoke (the day before 7:00.) Then check extinguished (9:12 the same day.)
Unit 4 - On order to monitor the status of stored fuel in the spent fuel pool, the work carried out sampling of the spent fuel pool water (12:00 to 13:04 April 12)
2. Industrial Safety Relationship
See Appendix
3. Employee exposure and [sic]


...


http://www.meti.go.jp/press/2011/04/20110412006/20110412006-1.pdf