Temporary storage tank for radioactive water at the Fukushima Daiichi nuclear plant. In order to cool the fuel rods, water has been continually pumped in and radioactive water has been pumped out or has leaked out. These tanks are where the water is being stored until it can be processed. TEPCO

May 25 (Asahi Shimbun) – Tokyo Electric Power Co. is fast running out of places to stash highly radioactive water from the stricken Fukushima No. 1 nuclear power plant and may soon be unable to prevent leaks into the ocean. About 744 tons of water a day was being pumped into the No. 1, No. 2 and No. 3 reactors as of May 22. Some of that is evaporating into the atmosphere, but most appears to be ending up in pools of radioactive water at the plant. TEPCO has been trying to contain that water by transferring it to storage areas around the site, but the containers for the No. 2 and No. 3 reactors are expected to reach full capacity in about four and three days, respectively. As the disaster response teams continue pumping water into the reactors to cool down the fuel rods, water will accumulate in the turbine buildings and trenches around the buildings, raising the risk of further radioactive leaks into the sea. A total of about 25,000 tons of highly radioactive water has been found in the turbine building and a trench at the No. 2 reactor. In early April, 500 tons (4,700 terabecquerels) leaked into the sea from a work pit near the reactor’s water intake. Twenty-two thousand tons of radioactive water has also accumulated at the No. 3 reactor. A leak of 250 tons (20 terabecquerels) was discovered near its water intake on May 11. … Extra makeshift storage tanks for the radioactive water are expected to be installed in July at the earliest.

More radioactive water may leak from Fukushima plant