,
YUCCAMOUNTAIN
PROJECT
Process Model Reports (PMRs)
Presented to:DOE/NRC Technical Exchange onTotal System Performance Assessment
Presented by:Miguel LugoProcess Model Report Manager -Regulatory and LicensingCRWMS M&O
U.S. Department of EnergyOffice of Civilian Radioactive
Waste Management
May 25-27, 1999
Process Model Reports (PMRs)Purpose
* The purpose is to document the technical basissupporting each TSPA process model
- Supports the postclosure safety case for SRILA* PMRs will focus the development of technical
information on what is relevant to developing adefensible TSPA
- i.e., the information the Project is relying upon todemonstrate postclosure compliance
* The PMR development process will ensure traceabilityof data, information, and references
M&O Graphics Presentations/NRCNMLugo-2-525-2799.ppt 2
PMR ScopeThe following PMRs will be developed
1 Integrated Site Model2 Unsaturated Zone Flow and Transport3 Near Field Environment4 Engineered Barrier System
Degradation and Flow/Transport5 Waste Package Degradation6 Waste Form Degradation Go Am
7 Saturated Zone Flow and Transport8 Biosphere9 Tectonic Hazards
C ,.
a s a d d _iv ~~~~~M&O Graphics Presentations/NRGJYMLugo-2-525-2799.ppt 3
PMR Scope(Continued)
* PMRs will contain:- Descriptions of the models, submodels, and abstractions
>> Relationship to principal factors
- Relevant data and data uncertainties- Assumptions and bases- Model results (outputs)- Code verification/model validation information- Opposing views e- Information to support regulatory evaluations
>> NRC Key Technical Issues
M&O Graphics Presentations/NRCNYMLugo-2-525-2799.ppt 4
PMR DevelopmentExisting
Project documents
Use as-is 1Update
Include in new 3.100SupersededAlternative
Z_)�
11Regulatory
Require-ments
RepositorySafety
Strategy
AllocationAnalyses 4-_
DevelopBiblio-graphy
Doc. 1Doc. 2Doc. 3., ..II .... ..
4 SR/LADesign
_
Li
1511Q
Analyses &ModelingReports(3.1 OQ)
J1
.
PMR o.2
TSPA
4ISite
Description
M&O Graphics Presentations/NRC/YMLugo-2-525-2799.ppt 5
Examples ofAnalyses & Model Reportsnd Transport PMR 7I* UZ Flow a
- Climate model- Infiltration model- Seepage model- Analysis of fracture and matrix properties data- Mountain-scale coupled processes- Radionuclide Transport model
* Waste Package Degradation PMR- General corrosion of waste package barrier- Localized corrosion model- Stress corrosion cracking model- Juvenile failures
M&O Graphics Presentations/NRCNYMLugo-2-525-2799.ppt 6
Linkage of Major ProgrammaticSR/LA MilestonesRev 0/1 PMRs
7/00U C-)
-________*
2/01
9/01
_____________ N.
LegendAnalysis/Modlrn Reports that
a support PMRs
TNPA
*D cDocument
a Docurnent
Regulatory| -Docements
CD40
400;
CD
U .L - - -- - - B DocumentFeeds
DocunentUpdates
+ , 11/00
Considerationh Hearings ---
Draft -SR
7/01
CD
CD0M
05
4=
3/02
FY2000 III FY2001 III FY2002
101 Q2 Q3 Q4 0II Q1 Q2 Q3 Q4 II Q1 Q2 Q3
M&O Graphics Presentations/NRCNYMLugo-2-525-2799.ppt 7
Summary
* The PMR process is being implemented to ensuretraceability and transparency of models
- Will document the technical basis for TSPA process models* PMRs, and supporting analyses and model reports,
will address the principal factors of the safety case- Focus will be on those factors most significant to
performance* The PMR schedule allows for information to be
incorporated as it becomes available
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