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Regional Basic Professional Training Course in Korea

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❙ 1043 ❙<br />

20. Waste Management<br />

Size, geological structure and mechanical stability of the host formation with<br />

respect to accommodat<strong>in</strong>g the repository;<br />

Hydrogeology of the host formation with respect to limit<strong>in</strong>g groundwater flow<br />

with<strong>in</strong> the repository and transport of released radioactive substances;<br />

Geochemistry of the host formation with respect to immobilization of radioactive<br />

substances;<br />

Absence of natural resources, such as m<strong>in</strong>eral, oil or gas deposits or sources of<br />

geothermal energy; and<br />

Potentially adverse geodynamic phenomena, such as neotectonics, seismicity and<br />

volcanism.<br />

In practice, many factors other than geological ones may have a major <strong>in</strong>fluence on the<br />

suitability and acceptability of a site. Environmental protection, land use and land<br />

ownership aspects may preclude large areas <strong>in</strong> the country from further consideration.<br />

The means and routes available for transportation of HLW and the existence of other<br />

<strong>in</strong>frastructure are usually noteworthy sit<strong>in</strong>g factors. The societal impacts and the op<strong>in</strong>ions<br />

amongst the local public are important aspects as well.<br />

Selection of a site for HLW disposal is a long‐runn<strong>in</strong>g project, tak<strong>in</strong>g 10‐20 years even<br />

with no setbacks related to public acceptance. Site characterization should not be done <strong>in</strong><br />

isolation but <strong>in</strong> a close <strong>in</strong>teraction with technical design of the disposal facility and its<br />

safety evaluation.<br />

20.7.3. Design and operational safety of facilities<br />

The ma<strong>in</strong> facilities needed for HLW disposal are the encapsulation facility and the

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