TEPCO revealed that 53 tanks for storing water containing radioactive substances after treating contaminated water on the premises of the Fukushima Daiichi Nuclear Power Station were found to be misaligned due to the February 13 earthquake. did.
The maximum deviation is 19 cm, which means that there is no leakage.
TEPCO has inspected 1074 tanks installed on the premises of the Fukushima Daiichi Nuclear Power Plant after the earthquake that observed shaking with a maximum seismic intensity of 6 or higher occurred in Fukushima Prefecture on February 13.
In these tanks, water containing radioactive substances that remains after treating contaminated water is stored, and as a result of the inspection so far, it was revealed that 53 units were found to be misaligned.
The deviation is 3 to 19 cm, which means that there is no leakage.
In addition, five locations on the pipes that connect the tanks were found to be out of alignment with the manufacturer's recommendations, but since there are no cracks so far, we will investigate in detail in the future.
In addition, at Unit 3, it was found that the data for the earthquake on the 13th could not be obtained because two seismographs had not been repaired after they broke down due to heavy rain in July last year, but there are criticisms about the response. TEPCO has announced plans to restore the seismograph by the end of March.