Asahi, Oct. 16, 2013: Heavy rain from Typhoon No. 26 forced [TEPCO] to discharge rainwater Oct. 16 that was threatening to swamp the barriers that surround the radioactive water storage tanks [...] According to the utility, workers drained about 40 tons of water from within barriers in areas called C-West and C-East at around 5:40 a.m. The water was transferred to a temporary storage tank to check its radiation levels before it was released, TEPCO officials said. But water levels continued to rise inside the barriers, threatening to spill over. Plant workers were eventually forced to open drainage valves on a total of nine storage areas starting around 7 a.m. to allow the water to escape, according to officials. Earlier, TEPCO had said it would discharge water that accumulated behind the barriers only after transferring it to a temporary storage tank where it would confirm it complied with safety standards. TEPCO officials said circumstances forced it to take “emergency measures” because the water rose at a faster rate than it could transfer to the holding tank.