Japan Makes Strides to Address Contaminated Water Leak


Over the past few months, TEPCO has reported that highly contaminated water has leaked from several water storage tanks and pipes on the Fukushima Daiichi premises. The admissions have renewed fears that the contaminated water has leaked into the ocean and could compromise both human and marine ecosystem health. Forum on Energy has received documents that describe the Japanese government’s next steps to counteract the water leakage.

The document below outlines countermeasures planned to address the contaminated water leakages at the TEPCO’s Fukushima Daiichi Nuclear Power Station.

Fukushima Water Leakage Countermeasures

Today, Asahi Shimbun reports that TEPCO has successfully located the source of the August 19water leak. A water tank that leaked 300 tons of contaminated water into the ground had leaked through two points of weakness in the floor of the tank. TEPCO has reacted by increasing the number of staff monitoring the tanks, and addressing the other, smaller sources of leaks.

The government of Japan has now taken over the clean-up at the power plant. Governmental actions include:

  • Japan has established an inter-ministerial committee to address the contaminated water issue.
  • Japan has recently released its basic policy points to the public, which enumerate managerial improvements, the objective of each countermeasure and basic facts of the ongoing situation.

The documents report that no significant concentrations of radionuclides have been found in the water, with the exception of the TEPCO Fukushima Nuclear Power Plant port. According to the data, the ocean is safe for swimming. The additional radiation resulting from the meltdown was only 1/70th of annual naturally occurring radiation in the area. As for food, the radiation exposure in Fukushima food and water is below the level set by Japan’s safety standards, which are the strictest in the world.

The Japanese Ministry of Energy Technology and Industry (METI) has outlined principal tasks of a new Contaminated Water and Decommissioning Issues Team and an overview of basic policies and government initiatives.

METI also provided the Forum on Energy with its own fact sheet on the leakage of contaminated water and the countermeasures that have been developed to deal with the issue. Read the fact sheet below.

Overview of Contaminated Water Issue at TEPCO’s Fukushima Daiichi NPS

>>For additional information, please frequently check the METI and NRA websites dedicated to providing updates on this ongoing concern.