The government will select potential areas to host nuclear dump sites instead of waiting for communities to volunteer, according to the revised policy on permanent disposal of high-level radioactive waste that was adopted by the Cabinet on Friday.
The revision, the first in seven years, was prompted after towns, villages and cities throughout Japan snubbed requests to host nuclear waste dumps. The government has been soliciting offers since 2002.
The move is seen as a sign that the government wants to address the matter as it proceeds with its pursuit of reactor restarts. All commercial units have largely sat idle since the triple meltdown at the Fukushima No. 1 plant in 2011.
It remains unclear when a final depository could be built, because the policy mentions no time frame. The government also plans to expand its storage capacity for spent fuel by building new interim facilities as a short-term fix.
Permanent disposal of high-level nuclear waste requires that a depository be built more than 300 meters underground, where the materials must lie for up to 100,000 years until radiation levels fall to the point where there is no harm to humans or the environment.
About 17,000 tons of spent fuel is stored on the premises of nuclear plants and elsewhere in Japan, but some would run out of space in three years if all the reactors got back online.
Under the revision, the government said it will allow future generations to retrieve high-level waste from such facilities should policy changes or new technologies emerge.
Worldwide, only Finland and Sweden have been able to pick final depository sites. Finland is building the world’s first permanent disposal site for high-level waste in Olkiluoto, aiming to put it into operation around 2020.
But many other countries with nuclear plants are struggling to find a site for such a facility. In the United States, President Barack Obama decided in 2009 to call off a plan to build a disposal site in Nevada’s Yucca Mountain due to local opposition.
Read more at METI changes tactics after search for nuclear waste host proves futile