Tokyo Electric Power Co. continues to struggle with cleaning up the more than 120,000 tons of radioactive water flooding the Fukushima No. 1 power plant, as the utility has hardly been able to reduce the overall amount of the water in the past several weeks.
Although Tepco said Wednesday it finally raised the efficiency of the plant's new water treatment system to 74 percent from around 50 percent the previous week and is looking to launch new measures, like a backup treatment system, it still remains unclear if the utility can continue to improve the situation.
Tepco's weekly water report said Wednesday that more than 28,000 tons had been processed since June 28, when the volume reached 121,770 tons.