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Monitoring of Geological Disposal Facilities: Technical and Societal Aspects

Each and every geological disposal project requires the collection of large amounts of information on
its progress throughout the facility’s lifecycle. This information is based on the monitoring and
surveillance of the selected site, built structures and their surrounding environment. Monitoring is carried
out to assist in the decision-making process, to collect site-relevant information for the creation of an
environmental database, to gain an understanding and to verify the performance of the disposal system, to

Yucca Mountain - Nevada's Perspective

Yucca Mountain—that barren rise in the desert ninety miles from Las Vegas—is the nation‘s only site identified for the potential location of the first ge ological repository for commercially-generated HLNW and SNF. Many assume
that Yucca Mountain has geologic and climatic qualities that make it uniquely
suitable to isolate the thousands of metric tons of the world‘s most lethal, long lived waste currently accumulating at 104 operating nuclear power plants across the United States.
Unfortunately, Yucca Mountain is an exceptionally bad site,

Underlying Yucca Mountain: The Interplay of Geology and Policy in Nuclear Waste Disposal

Nuclear waste disposal in the USA is a difficult policy issue infused with
science, technology, and politics. This issue provides an example of the co-production
of scientific knowledge and politics through public policy. The proponents of a
repository site at Yucca Mountain, Nevada, argue that their decision to go ahead
with the site is based on ‘sound science’, but the science they use to uphold their
decision is influenced by politics. In turn, the politics of site selection has been altered

The NUMO Structured Approach to HLW Disposal in Japan

The constraints set by the Japanese HLW disposal programme – particularly associated with
the decision to initiate siting by an open call for volunteers to host a geological repository –
pose particular challenges for repository project management. In order to maintain the
flexibility required to respond to the conditions found at volunteer sites, NUMO has not
published reference designs or site characterisation plans, as is normal for programmes
progressing by site nomination. Instead, we have developed a methodology – the NUMO

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