TEPCO - Press releases on the leak

April 6, 2013

Press Release (Apr 06,2013)Water Leak from the Underground Reservoir No.2 in Fukushima Daiichi Nuclear Power Station (Follow-up Information No.9)

This is follow-up information regarding the water leak from the underground reservoir No. 2 in Fukushima Daiichi NPS.

To switch the pump to the reservoir No.6, we stopped the pump at 3:33 pm. At 4:10 pm, we restarted the pump and transferring the water in the reservoir No.2 to No.6.

At 4:30 pm, we conducted an on-site survey and confirmed that there is no abnormality such as leakage on the transferring line

Press Release (Apr 06,2013)Water Leak from the Underground Reservoir No.2 in Fukushima Daiichi Nuclear Power Station (Follow-up Information No.8)

This is follow-up information regarding the water leak from the underground reservoir No. 2 in Fukushima Daiichi NPS.

We have been transferring the water from the reservoir No. 1 to No.2 using the pump and the four temporary pumps. To switch the pump to the reservoir No.6, we stopped the pump at 3:33 pm. We continue transferring the water using the temporary pumps to the reservoir No.1.

We conducted an on-site survey and confirmed that there is no abnormality such as leakage on the transferring line.

We will start transferring the water to the reservoir No.6 soon after it is ready.

Press Release (Apr 06,2013)Water Leak from the Underground Reservoir No.2 in Fukushima Daiichi Nuclear Power Station (Follow-up Information No.7)

This is follow-up information regarding the water leak from the underground reservoir No. 2 in Fukushima Daiichi NPS.

We are transferring the water from the reservoir No. 1 to No.2 using the pump and the four temporary pumps. To switch the pump to the reservoir No.6, we will stop the pump temporarily. We continue transferring the water using the temporary pumps to the reservoir No.1.

We are planning to continue transferring the water in the reservoir No.2 to No.1 using the four temporary pumps (Flow rate: Approx. 30 m³/h*2, 48 m³/h, 60 m³/h). It may take 2.5 days to transfer approx. 10,000 m³ of the water.

We are planning to transfer the water in the reservoir No.2 to No.6 using the pump (Flow rate: Approx. 40 m³/h). It may take 3.1 days to transfer approx. 3,000 m³ of the water.

It may take 3.1 days to transfer the water since the transfers will be operated in parallel.