” The operator of the crippled Fukushima Daiichi nuclear power plant says radioactively contaminated rainwater is spilling outside the facility’s port after pumps to prevent leakage stopped working.
In February, Tokyo Electric Power Company, or TEPCO, found that radioactive rainwater that had accumulated on the roof of the plant’s No. 2 reactor building was leaking outside the port through a drainage channel.
TEPCO blocked the channel and installed 8 pumps in a tentative measure to reroute the channel so that contaminated water would not leak into the sea.
The firm started operating the pumps last Friday. But on Tuesday, a worker found that they had stopped and the water was going into the sea.
TEPCO officials say they don’t know the amount or radioactive level of the water. But they say that as of April 9th, the level was extremely low.
They add that the pumps were working normally when workers checked them on Monday afternoon. They say they don’t know what caused the problem or when they can restart the pumps.
The pumps can handle rainfall up to 14 millimeters per hour. It was not raining heavily when they presumably stopped. ”