Further, consideration of the uncertainties involved in extrapolating
general corrosion data for the proposed waste package materials supports the
inclusion of this potentially highly significant process (‘‘Assumptions, Conservatisms, and Uncertainties in Yucca Mountain Performance Assessments,’’ Docket No. EPA–HQ–OAR–2005–0083–0085, section 5.4.1). There fore, we believe that general corrosion, in addition to those FEPs related to seismicity, igneous activity and climate change identified by NAS, requires explicit inclusion in the assessments during the time of geologic stability