Compliance Recertification Application 2009

Compliance Recertification Application 2004 (CRA-2004)

Appendix PA Attachment MASS: Modeling Assumptions (MASS)

View the text of Modeling Assumptions (MASS).

Appendix PA Attachment MASS was cited in the following sections of the CRA-2009:

• Appendix MASS: Performance Assessment Modeling Assumptions
• Subsection MASS-1.0: Introduction
• Subsection MASS-2.0: Summary of Changes in Performance Assessment
• Subsection MASS-3.1: Darcy’s Law Applied to Fluid Flow Calculated by BRAGFLO, MODFLOW-2000, and DRSPALL
• Subsection MASS-4.2.3: CRA-2004 Implementation of Option D-Type Panel Closure
• Subsection MASS-4.2.4: Increased Segmentation of Waste Regions in Grid
• Subsection MASS-4.2.5: CRA-2004 Redefined and Simplified Grid Flaring Method
• Subsection MASS-5.0: BRAGFLO Geometry of the Repository
• Subsection MASS-12.0: Shafts and Shaft Seals
• Subsection MASS-14.0: Geologic Units above the Salado
• Subsection MASS-15.1: Historical Context of the Culebra Model
• Subsection MASS-15.2: Dissolved Actinide Transport and Retardation in the Culebra
• Subsection MASS-15.3: Colloidal Actinide Transport and Retardation in the Culebra
• Subsection MASS-16.1.1: Historical Context of Cuttings, Cavings, and Spallings Models
• Subsection MASS-16.1.2: Waste Mechanistic Properties
• Subsection MASS-16.1.4: Calculation of Cuttings, Cavings, and Spall Releases
• Subsection MASS-16.3: Long-Term Properties of the Abandoned Intrusion Borehole
• Subsection MASS-17.0: Climate Change
• Subsection MASS-20.0: Summary of Clay Seam G Modeling Assumptions
• Appendix PA: Performance Assessment
• Subsection PA-2.1.4.2: Spallings
• Appendix SCR: Feature, Event, and Process Screening for PA
• Subsection SCR-5.2.1.4.3.2: Geochemical Effects of Drilling-Induced Flow–HCN
• Subsection SCR-6.2.1.4.3: Screening Argument
• Section 23: Models and Computer Codes
• Subsection 23.2.4: EPA’s Evaluation of Compliance for the 2004 Recertification
• Subsection 23.4.3.3: Mathematical Models
• Subsection 23.6.3: Changes in the CRA-2004
• Section 24: Waste Characterization
• Subsection 24.5.9: 40 CFR §§ 194.24(d) and (f)
• Section 25: Future States Assumptions
• Subsection 25.5: EPA’s Evaluation of Compliance for the 2004 Recertification
• Subsection 25.5.5: The 2006 Recertification Decision
• Section 33: Consideration of Drilling Events in Performance Assessments
• Subsection 33.4: Changes in the CRA-2004