IAEAInternational Atomic Energy Agency
Roger Seitz
Potential Working Groups
IAEA
Potential Working Groups from March
Topical areas for a future WG• WG1: Technical Conditions
– to address specifics on possible human actions based on site conditions (e.g. type of drilling, well diameter and depth, etc.)
• Technology available locally or more generally available (developing countries)• Role of geology/hydrology in defining scenarios• Description of details regarding intrusion (well diameter, location of well, etc.)• Conditions that could limit potential for intrusion
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IAEA
Potential Working Groups from March
• WG2: Societal Aspects – to address societal context of future human action scenarios
• Level of development (current or future)
• Recognition something is wrong
• Distinction between inadvertent and advertent
• Effectiveness of barriers, markers and records (passive)
• International archive? Taking credit for records
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IAEA
Potential Working Groups from March
• WG3: Linking Technical and Societal Conditions with Design – to consider the synthesis of site and societal considerations with the actual repository design to develop the full scenarios to be considered
• Timing – effectiveness of barriers as a function of time• Links between natural processes and intrusion (erosion of cover)• Countermeasures – what types of barriers are effective against drilling or
excavation (develop table of barriers and different types of intrusion• How does design impact contact with any specific waste package (spatial)
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IAEA
General Topics – Practical implementation
• Consider how scenarios regarding future human actions are used in the process of siting, designing and developing WAC
• Regulatory and public perception considerations
• Interpretation of results above 1 mSv, do we always calculate impacts?
• Inclusion of probabilities/likelihoods
• Public perception of intrusion – over cautious, conservatisms
• Regulatory considerations – developing regulations
• Common methodology
• Natural evolution or intrusion (erosion followed by moving on site)
• Do we develop scenarios or consider impacts of intrusion without specifying scenarios
• How are results used to influence design, siting and WAC (applications throughout lifecycle)
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IAEA
Additional Ideas
• Divide by geologic and near-surface disposal• Update draft IAEA document into Safety Report (integrating activity)
• Considerations:• Limit number of groups• Focus on areas where consensus can be reached• Practical expectations, achievable goals• Want to have product(s) that will contribute to a safety report at the
end of the project
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