Organization and Rationale of License Application Plan.' · 2012-11-19 · Thermal Effects on Flow Repository Design and Thermal-Mechanical Effects Total System Performance Assessment

YUCCAMOUNTAIN

PROJECT

Organization and Rationale ofLicense Application Plan

Presented to:NRC/DOE Technical ExchangeLicense Application Plan

Presented by:Carol Hanlon, VA License Application Plan LeadYucca Mountain Site Characterization Office

September 16, 1998 U.S. Department of EnergyOffice of Civilian Radioactive

Waste Management

License Application PlanViability Assessment Volume 4

PURPOSE OF THE LICENSE APPLICATION PLAN(Civilian Radioactive Waste Management Program Plan)

* To identify remaining scientific investigationsand engineering information needed tocomplete the License Application

* To identify costs associated with securing thisinformation

LONG-TERM GOAL* Submitting a docketable License Application

to the Nuclear Regulatory Commission

HanlonO91798.pptl1 25/NRC/Sep98 2


CONSIDERATIONS* Opportunity to assess adequacy of revised

approach to site characterization and design* Draw on available models and data describing

the natural system, repository, and wastepackage design

* Draw on Total System Performance Assessment* Draw on strategy for evaluating waste

containment and isolation (Repository SafetyStrategy)

* Performance confirmation program continuingduring construction and operation to furtherreduce performance uncertainties

Hanlon0917l98.pptll 25INRCISepY8 3

License Application Planin the Viability Assessment

Volume 4Site

Investigations(Volume 1)

Design(Volume 2)

Rationale forWork Needed toComplete LicenseApplication (§ 2.0)

Postclosure Safety Case* Elements of Postclosure Safety Case, Repository Safety Strategy* Description of Principal Factors* Prioritization of Principal Factors* Design Options* Technical WorkPreclosure Safety Case

* Development of PreclosureRadiological Safety Case

* Use of Demonstrated Technologyand Accepted Design Criteria

* Information NeedsDesign Decisions* Criticality* Approach to Closure* Design Alternatives

Technical WorkPlans (§ 3.0 )

Site Investigations* Geologic Framework* Unsaturated Zone* Saturated Zone* Thermal Testing* Near-Field EnvironmentalCoupled Processes

Design* Subsurface* Waste Package, Surface

Performance Assessment* Model Abstractions* TSPA Analyses* Design Support

SupportActivities

(§5.0) IU U

Costs forLicense

Application(§ 6.0)

I I~~~M

Schedule forLicense

Application(§ 7.0)Performance

Assessment(Volume 3)

0I

I Statutory Activities: EIS, Environmental Compliance, Site SuitabilityEvaluation, Site Recommendation, License Application (§ 4.0) I

HanlonO91 798.ppt/1 25/N RC/Sep98 4


CONTENTS OF LA PLAN

Overview1 - Introduction2 - Rationale for technical work needed to

complete the License Application3 - Technical Work Plans4 - Statutory and Regulatory Activities5 - Support Activities6 - Costs7 - Schedule8 - ReferenceAppendix A - Glossary

HanlonO91798.ppt/1 25/NRC/Sep98 5


SECTION 2: RATIONALE FOR TECHNICALWORK NEEDED TO COMPLETE THE

LICENSE APPLICATION PLAN| 2.1 Overview l

2.2 | Rationale for Technical Work 1 2.3 [ Rationale for Technical 1 2.4 | Rationale for Additional INeeded to Complete thePostclosure Safety Case

* Postclosure Safety Case

* Repository Safety Strategy

* Principal Factors of the

Repository Safety Strategy

* Conditional Prioritization of

Principal Factors

* Performance of Design

Options

* Summary of Technical Work

Work Needed toComplete the PreclosureRadiological Safety Case

e Preclosure Radiological

Safety Case

* Use of Demonstrated

Technology and

Acceptable Design

Criteria

* Information Needs

Technical Work toSupport Design Decisions

* Technical Work toAddress Criticality

Issues

* Technical Work toAddress Approaches toRepository Safety andClosure

* Technical Work toEvaluate DesignAlternatives

HanlonO91798.pptl1 25/NRC/Sep98 6


2.2 POSTCLOSURE SAFETY CASE

* In the License Application, the postclosureSafety Case will provide the basis fordetermining whether or not a repository atYucca Mountain will meet compliance standardswith reasonable assurance

* The License Application Plan defines 5elements of the Postclosure Safety Case toprovide a framework for needed data andanalyses

* The License Application Plan also summarizestechnical work to address each element

HanlonO91798.pptll 25/NRC/Sep98 7


2.2 POSTCLOSURE SAFETY CASE(CONTINUED)

Postclosure Safety Case elements

1 - Assessment of expected performance2 - Design margin and defense-in-depth3 - Consideration of disruptive processes and events4 - Insights from natural and man-made analogues5 - A Performance Confirmation Plan

HanlonO91 798.ppt/l 25/NRC/Sep98 8


PRINCIPAL FACTORS

* 19 factors important to postclosure performance,termed principal factors, have been identified inperformance assessment sensitivity studies for theVA base case with the reference design

* DOE has identified and prioritized its remainingtechnical work related to postclosure repositoryperformance based on:

- The relative importance of each factor- The degree of confidence in the current representation of

each factor in the performance assessment models- The confidence that could be obtained by the time of LA

submittal through further testing and analysisHanionO91798.ppt/1 25/NRC/Sep98 9

I [-RepositorySafety Strategy

License Application PlanRationale

............ &a

TSPA-VA

CRWMProgram

Plan(1996)

CongressionalDirection

RegulatoryRequirements

PostclosureSafety Case* Postclosure Safety Case* Repository Safety Strategy* Principal factors of the

Repository Safety Strategy* Conditional Prioritization

of Principal Factors* Performance of Design Options

* Summary of Technical WorkAvailableModels& Data

InformationNeeded

Priorities ofInformation

Needed

WorkActivities

GOAL:

DocketableLicense

Application

OperationalConsiderations,

and DesignBasis Events

PreclosureSafety Case* Development of the Preclosure

Radiological Safety Case* Use of demonstrated

technology andaccepted design criteria

* Information needs forSite Recommendationand License Application

HanlonO9 1798.ppt1 25/NRC/Sep98 10


2.3 PRECLOSURE RADIOLOGICAL SAFETY CASE* Comprises the body of evidence necessary to

demonstrate protection of worker and publichealth and safety while waste is being emplacedand monitored, before the repository ispermanently closed

* Based on comprehensive safety analysisidentifying facility operations and wasteemplacement scenarios which evaluate:1 - Design Basis Events2 - Safety classification of structures, systems, and components3 - Verification of system design for compliance with requirements4 - Use of demonstrated technology and accepted design criteria

HanionO91798.ppt/125/NRC/Sep98 I 1


2.4 RATIONALE FOR ADDITIONAL TECHNICALWORK TO SUPPORT DESIGN DECISIONS

* Technical work needed to support designdecisions

* Conduct evaluations leading to selection ofinitial design for Site Recommendation andLicense Application

HanionO91798.ppt1 25/NRC/Sep98 12


SECTION 3: TECHNICAL WORK PLANS

3.1 [ Site Investigations 1 3.2 | Design 1 3.3 [ Performance Assessment 1

* Geologic Framework andDisruptive Events (Table 3-1)

* Unsaturated Zone ProcessesGroup (Table 3-2)

* Saturated Zone Processes(Table 3-3)

* Thermal Testing

* Near-field Environment andCoupled Processes

* Performance Confirmation

* Management, Int. and FieldSupport

* Subsurface Design

* Waste Package

* Surface

* Model Abstractions

* Total System PerformanceAssessment Analyses

* Design Support

HanlonO91798.ppt/125/NRC/Sep98 1 3

License Application PlanViability Assessment Volume 4SECTION 4: STATUTORY AND

REGULATORY ACTIVITIES

* Environmental Impact Statement andEnvironmental Compliance

* Site Recommendation

* Licensing- Licensing Activities- License Application Status and Schedule- Nuclear Regulatory Commission Interaction and

Key Technical issues



SECTION 5: SUPPORT ACTIVITIES

* Field Construction and Operation- Land Area, Facilities- Surface Testing Facilities- Exploratory Studies Facility- General Services

* Other Support Activities- Information Technology- Systems Engineering- Quality Assurance Program

HanlonO91798.ppt/1 25/NRC/Sep98 1 5


SECTION 6: COSTS* Viability Assessment to License Application

SECTION 7: SCHEDULE* Work described as necessary for License

Application in Sections 2 & 3* Statutory Milestones in the CRWM Program Plan

were used to derive Project Summary Schedule* Project Summary Schedule forms the basis for

costs shown in Section 6 and Schedule shown inSection 7

* These activities are being used to revise theMulti-Year Plan

HanionO9 I 798.ppt1 25/NRC/Sep98 16


CONSIDERATION OF KEY TECHNICAL ISSUES

Throughout Viability Assessment - KeyTechnical Issues have been correlated withspecific discussions, when appropriateVolumes:- 1. Site Description- 2. Design- 3. TSPA-VA- 4. License Application Plan

HanlonO91l798.ppt/l 25/NRC/Sep98 17


CONSIDERATION OF KEY TECHNICAL ISSUES(CONTINUED)

Volume 4- Technical Work - Activities correlated with

specific Key Technical Issues

- Section 4-3-3 Nuclear Regulatory CommissionInteraction and Key Technical Issues

- Table 4-2 Location of Information Related toKey Technical Issues in Viability AssessmentVol. 1-4

HanionO91798.pptfl125/NRC/Sep98 18


Locations of Information Related to Key Technical Issues inVA Volumes 1 through 4

Key TechnicalIssue

Igneous Activity

StructuralDeformation andSeismicity

Evolution of Near-Field Environment

Container Life andSource Term

Thermal Effects onFlow

Repository Designand Thermal-Mechanical Effects

Total SystemPerformanceAssessment andIntegration

Activities Related toDevelopment of theEPA YuccaMountain StandardA

Unsaturated andSaturated ZoneFlow UnderIsothermalConditions

RadionuclideTransport *

Volume 1Sections

2.2.7

2.2.1, 2.2.7

2.2.6

Volume 2Sections

5.1.3

5.1.3, 5.1.4

2.2.6

2.2.6 3.1.2, 3.3.4,4.2.7, 4.3

4.2.2,

Volume 3Sections

2.3.2, 4.4.2

3.4.1, 4.4, 4.4.3

2.2.3, 3.4,2, 4.1.3,4.1.4, 5.2.2, 6.5.1

2.2.3, 3.2.2, 3.3,3.4, 3.5.2, 5.5.1

3.1.1, 3.2, 4.1.5,5.2

5.2.2, 6.5.1

2.1, 2.3.3, 3.5, 3.6,3.7, 3.8, 3.8.3, 4.4,6.5.3

Not Addressed

3.1.1, 3.2.3, 3.3.1,3.4.2, 3.6.1, 3.7.2,4.1.3, 4.1.4

5, 5.2.2, 6.5.1

Volume 4Sections

3.1.1, 3.3.1

3.1.1, 3.2.1, 3.2.2,3.2.3, 3.3.1, 4.3.1

3.1.2, 3.1.4, 3.1.5,3.2.1, 3.3.1

3.1.4, 3.1.5, 3.2.2,3.3.1

3.1.1, 3.1.2, 3.1.4,3.1.5, 3.2.1, 3.3.1

3.1.1, 3.1.4, 3.1.5,3.2.1, 3.2.2

3.1.1, 3.1.2, 3.1.3,3.1.4, 3.1.5, 3.2.2,3.3.1

Not Addressed

A NRC has indicated no issueresolution status report will bedeveloped for this key technicalissue.

* Issue resolution status reportis not yet available. Subissuestatements are expected tochange when issue resolutionstatus report is issued.

Not Addressed

2.2.2, 2.2.3, 2.2.4,2.2.5

2.2.5, 2.2.6

Not Addressed

3.1.13.3.1

, 3.1.2, 3.1.3,

3.1.1, 3.1.2, 3.1.3,3.1.4, 3.1.5, 3.2.2,3.3.1

HanlonO9 1798.ppt/1 25/NRC/Sep98 19


CONCLUSIONS

* To ensure that we are able to meet our goal ofsubmitting a docketable License Application to theNRC, the License Application plan presents acomprehensive safety case and a detailed rationalefor needed additional work

* Technical work remaining to be completed for thePostclosure Safety Case receives the strongestemphasis

* Regulatory, statutory, and other activities aredeveloped with lesser detail

* Consideration of Key Technical Issues are includedthroughout the License Application Plan, as well asthroughout the Viability Assessment

HanlonO91 798.ppt/1 25/NRC/Sep98 20


CONCLUSIONS(CONTINUED)

* DOE believes that the License Application Planhas met the requirements of Congress and theCRWM Program Plan by identifying andprioritizing remaining scientific work,engineering, and other work necessary to submita docketable License Application

HanlonO91l798.ppt/l 25/NRC/Sep98 21


SUBSEQUENT PRESENTATIONS

Jean Younker

Jack Bailey

Jean YounkerRichard SnellHolly DockeryJean Younker

April Gil

Evolution of the Postclosure RepositorySafety Strategy and Safety CasePerformance Allocation andIdentification of Needed Information

DISCUSSION & EXAMPLES OFREMAINING TECHNICAL WORKSite InvestigationDesignPerformance AssessmentStatus of Quality Controls on theTechnical ProgramRegulatory Program and Path Forward


Documents

Organization and Rationale of License Application Plan.' · 2012-11-19 · Thermal Effects on Flow Repository Design and Thermal-Mechanical Effects Total System Performance Assessment