Fukushima Daiichi Water Infiltration From Typhoon

Typhoon Hagibis has mostly cleared from Fukushima Prefecture. TEPCO published a series of reports of water infiltration at the plant over the time of the typhoon. No reports of damage were issued yet. It may take some time after the storm completely passes before workers can go outside to do visual inspections. Webcam images captured a few hours before this report showed mostly clear conditions.

 

Unit 2 Waste Treatment Building Central Area Leakage Alarm from Stagnant Water Transfer Piping

October 12, 2019

October 12, 2019
Tokyo Electric Power Holdings Co., Ltd.

At around 4:55 pm today (October 12), an alarm was generated in the Unit 2 waste treatment building indicating that the leak detector was activated.

The situation is as follows.
– occurrence time: 4:00 pm 55 minutes
and developmental Location: Unit 2 waste processing building
, alarm name: Unit 2 waste processing building central area transfer pipe leakage
current, has confirmed the site situation, the situation is to understand and as soon as they The

In addition, the transfer of the accumulated water of No. 1, No. 2, No. 3, and No. 4 that was being transferred has been stopped just in case.


Fukushima Daiichi Nuclear Power Station Unit 2 Waste Processing Building Central Area Leakage Alarm from Stagnant Water Transfer Piping (Continued)

October 12, 2019

October 12, 2019
Tokyo Electric Power Holdings Co., Ltd.

We will inform you about the operation of the leak detector in the Fukushima Daiichi NPS Unit 2 waste treatment building.

As a result of on-site confirmation by our employees, it was confirmed that there was no leakage at 6pm. For this reason, we decided that the leak detector was activated by rainwater.


Occurrence of leak warnings in the existing desalination facility building at Fukushima Daiichi Nuclear Power Station

October 12, 2019

October 12, 2019
Tokyo Electric Power Holdings Co., Ltd.

At 7:25 pm today (October 12), an alarm was issued indicating that the leak detector was activated in the existing desalination facility building.

The situation is as follows.
・ Occurrence time: 7:25 pm
・ Occurrence location: Existing desalination treatment facility building
/ alarm name: Water treatment facility Freshwater treatment facility Leakage monitoring device abnormality

Currently, the site status is confirmed and will be notified as soon as the situation is known .


Occurrence of leakage warning near the main building of the Fukushima Daiichi NPS process

October 12, 2019

October 12, 2019
Tokyo Electric Power Holdings Co., Ltd.

At 7:56 pm today, an alarm was generated in the vicinity of the main process building indicating that the leak detector was activated.

The situation is as follows.
・ Occurrence time: 7:56 pm
・ Occurrence location: Near the main process building
・ Alarm name: Desalination facility Circulation facility B system trough liquid level (9) high

For this reason, the building desalination facility A was shut down at 8:02 pm.
We are currently checking the situation on the site and will notify you as soon as the situation is known.


Occurrence of leak warning in the main building of the Fukushima Daiichi NPS

October 12, 2019

October 12, 2019
Tokyo Electric Power Holdings Co., Ltd.

At 8:22 pm today, an alarm was generated in the main process building indicating that the leak detector was activated, and it was cleared at the same time. After that, the alarm is repeatedly generated and cleared, and is now in the cleared state.

The situation is as follows.
・ Occurrence time: 8:22 pm
・ Occurrence location: Process main building
/ Alarm name: Water leakage Oil separator treatment water tank Equipment leak (A)

We will confirm the situation in the future and will notify you as soon as the situation is known.


Occurrence of leak warning in the vicinity of the main building of the Fukushima Daiichi NPS process (circulation facility A)

October 12, 2019

October 12, 2019
Tokyo Electric Power Holdings Co., Ltd.

At 9:57 pm today, an alarm was generated in the vicinity of the process main building indicating that the leak detector was activated.

The situation is as follows.
・ Occurrence time: 9:57 pm
・ Occurrence location: Process main building vicinity
・ Alarm name: Desalination facility Circulation facility A system trough liquid level (9) high

We will confirm the situation in the future and will notify you as soon as the situation is known.


Fukushima Daiichi NPS expansion multi-nuclide removal facility

October 12, 2019

October 12, 2019
Tokyo Electric Power Holdings Co., Ltd.

Today, at around 10:02 pm, an alarm was issued in the expanded multi-nuclide removal equipment building indicating that the leak detector was activated.

The situation is as follows.  -Occurrence
time: Around 10: 2 pm-Occurrence
location: Expanded multi-nuclide removal equipment building
-Alarm name: Cross flow filter C skid 1.2 near Tamemas leak

We will confirm the situation in the future and will notify you as soon as the situation is known.


Occurrence of a leak warning in the container of desalinator at Unit 6 of Fukushima Daiichi NPS

October 12, 2019

October 12, 2019
Tokyo Electric Power Holdings Co., Ltd.

Today, at 11:19 pm, an alarm was generated in the Unit 6 desalination unit container indicating that the leak detector was activated.

The situation is as follows.
-Occurrence time: 11:19 pm
-Occurrence location: Unit 6 desalination equipment container
-Alarm name: Leakage in freshwater treatment equipment container

We will confirm the situation in the future and will notify you as soon as the situation is known.


Fukushima Daiichi NPS Unit 1 Turbine Building 1st Floor Leakage Monitoring Panel DC Alarm Abnormality Occurrence

October 13, 2019

October 13, 2019
TEPCO Holdings Corporation

Yesterday (October 12th), at 10:52 pm, an alarm indicating an abnormality in the DC power supply for the 1st floor turbine building 1st floor leakage monitoring panel occurred in the Seismic Isolated Building. Leak monitoring on the 1st floor northeast is no longer possible.

The cause will be confirmed in the future, as soon as the situation is known.

Transfer of stagnant water in Unit 1 is currently stopped.


Occurrence of leak warnings at the Fukushima Daiichi Nuclear Power Station used cesium adsorption tower temporary storage facility (third facility)

October 13, 2019

October 13, 2019
TEPCO Holdings Corporation

 Today (October 13) at 0:33 am, a warning indicating that the leak detector has been activated at the temporary storage facility for used cesium adsorption tower (third facility) has been cleared at the same time. . After that, the alarm is repeatedly generated and cleared.

 The situation is as follows.
 ・ Occurrence time: 0:33 am
 ・ Location: Temporary storage facility for used cesium adsorption tower (third facility)
 ・ Alarm name: 06BL 21G-A leak detection

 We will confirm the situation in the future and will notify you as soon as the situation is known.

Source of the reports

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