Number of Waste Packages Hit By Igneous Events
| Attachment | Size |
|---|---|
| ANL-MGR-GS-000003_DOC.20071002.0001.pdf (9.65 MB) | 9.65 MB |
The purpose of this report is to document calculations of the number of waste packages that could be damaged in a potential future igneous event intersecting a repository at YuccaMountain. The analyses include disruption from an igneous intrusion and from an igneous eruption. The analyses also support the evaluation of the potential consequences from a future event as part of the total system performance assessment (TSPA) for the license application for the Yucca Mountain Project.
Igneous activity is a disruptive event included in the TSPA analyses because the annual local probability of occurrence is greater than 1 x 10-8 (BSC 2004 [DIRS 169989], Table 7-1). Two igneous activity scenarios are considered:
• The igneous intrusion groundwater release scenario (also called the igneous intrusion scenario) considers in situ damage to waste packages or failure of waste packages that occurs if they are engulfed by magma as a result of an igneous intrusion.
• The igneous eruption (also called volcanic eruption) scenario depicts the direct release to the biosphere of radioactive waste due to an intrusion intersecting the repository followed by a volcanic eruption at the surface.
