On Aug. 20, a spokesman from Tokyo Electric Power Co. (TEPCO), the operator of Japan’s damaged Fukushima Daiichi nuclear power facility, announced that 300 tons of highly contaminated water has escaped the facility and leaked into the ground.
Puddles of radioactive water were discovered by TEPCO workers near an inland tank Monday, prompting further investigation. It was soon discovered that a 1,000-ton capacity steel storage tank was missing some 300 tons of highly radioactive water. According to reports, the water contains levels of radioactive cesium and strontium that are hundreds of times higher than legal safety limits.
Officials from TEPCO have said they believe the leak did originate from the tank, but are still uncertain how or where in particular the leak occurred. The incident has sparked particular concern because four other storage tanks with the same design have also experienced leaks over the past year, the Associated Press reported.
The seriousness of the leak has also prompted Japan’s nuclear regulators to declare a radiological release incident for the first time since 2011, when a high level earthquake and subsequent tsunami resulted in a nuclear meltdown at the Fukushima complex.
TEPCO has said the leak is mostly likely ongoing and has set its focus on stemming any further spread of the contamination. Workers have been placing sandbags around the tank vessel in an attempt to stave off the water leak as the region braces for heavy rainfall.