志賀原子力発電所 大雨によるモニタリングポストNo.1の故障について
概要
On August 31st 2018, the measurement of the radiation dose rate in the air was stopped because the monitoring post No. 1 was shut down by the local flood after a heavy rain in the Noto area of Ishikawa Prefecture. The heavy rain which we didn’t have in the past was occurred in a short time and a large amount of fallen leaves and branches blocked the drainage around the station of the monitoring post No. 1, and also the station of the monitoring post No. 1 was located in a low-lying depression. As the final result of these situations, this event was occurred. As an interim countermeasure of this event, we primarily made sure drainages around the monitoring post No. 1 are not stuck when we patrolled outside if the heavy rain warning was issued, and we used the monitoring car as an alternative measurement of the radiation dose rate in the air while the monitoring post No.1 was being shut down. As a permanent countermeasure of this event, we filled up the low-lying depression and remodeled the drainage.
