Japan Press Weekly

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2016 September 14 - 20 [SOCIAL ISSUES]

JCP reveals risk of contaminated water leakage at Kashiwazaki-Kariwa NPP

Japanese Communist Party parliamentarians in their recent on-site investigation found that the Kashiwazaki-Kariwa nuclear power plant poses a serious risk of radioactive water leakage if it is hit by a powerful earthquake.

The JCP investigation team consisting of JCP Dietmembers, Fujino Yasufumi (Lower House) and Takeda Ryosuke (Upper House), on September 15 visited the Kashiwazaki-Kariwa NPP to examine its safety measures.

The group investigated Nos. 6 and 7 reactors, which the Nuclear Regulation Authority is examining TEPCO’s application for restart, and sites of subsidence damage caused by liquefaction due to the 2007 Chuestu Offshore Earthquake.

It has come to light that the amount of groundwater being used at the Kashiwazaki-Kariwa NPP is much larger than the amount at other NPPs in Japan. However, TEPCO explained to the JCP group that it has no idea why so much groundwater is being pumped into the nuclear power station.

After the investigation, JCP member of the House of Representatives Fujino Yasufumi said to reporters, “The utility has yet to implement measures to control its use of groundwater.” Given the fact that at the Fukushima nuclear power plant, TEPCO is struggling with a serious leakage of radioactively-contaminated water which is caused by groundwater entering the crippled NPP, it is unacceptable for the power company to bring the Kashiwazaki-Kariwa power station back online.

Professor Emeritus of Seismology at Niigata University Tateishi Masaaki, who joined the JCP investigation team, pointed out that the NRA should examine the amount of groundwater used at the NPP and asses the seismic capacity of wells pumping up the groundwater.”

Past related article:
> Polluted water leakage proves Fukushima disaster not under control [February 27, 2015]