Fukushima Daiichi NPS Prompt Report 2013

This is follow-up information on the water dropping from the top plate of the B area (south), which happened yesterday (on October 2).

We would like to announce the measurement results obtained at the side ditches (X-1 and X-2) and the newly analyzed junction of the drainage channel and the side ditch beside the tank as follows.

<The side ditch beside the tank (a point immediately short of the junction with the drainage channel C) (X-1)>
- Sampled on October 3
Cesium-134: 180Bq/L
Cesuim-137: 480Bq/L
All β: 13,000Bq/L

- Sampled on October 2
Cesium-134: 120Bq/L (previously announced)
Cesuim-137: 310Bq/L (previously announced)
All β: 15,000Bq/L (previously announced)

<The side ditch beside the tank (X-2)>
- Sampled on October 3
Cesium-134: 36Bq/L
Cesuim-137: 81Bq/L
All β: 7,100Bq/L

- Sampled on October 2
Cesium-134: 66Bq/L (previously announced)
Cesuim-137: 170Bq/L (previously announced)
All β: 5,200Bq/L (previously announced)

<The junction of the drainage channel C and the side ditch beside the tank (C-1-1)>
- Sampled on October 3
Cesium-134: Below the detection limit value (detection limit value: 18 Bq/L)
Cesuim-137: 43Bq/L
All β: 800Bq/L

No significant change was found on the other analysis results in the other drainage channels compared to the previous results.

For the sampling results, please refer to the following page on our website:
http://www.tepco.co.jp/en/nu/fukushima-np/f1/smp/index-e.html