date:Aug 12, 2013
Tokyo Electric Power Co. said Sunday it has detected radioactive tritium in groundwater collected from a newly built observation well by the sea at the crippled Fukushima No. 1 nuclear power plant.
The groundwater sample collected Saturday from the well contained 34,000 becquerels of tritium per liter, up from 23,000 becquerels detected in a sample collected Thursday, a day after the well was installed some 4 meters away from the sea, the plant operator said.
The observation well was set up We