ML111010128

Licensee Slides from 4/11/11 Pre-Licensing Meeting with Pacific Gas and Electric Company to Discuss License Amendment Submittal Related to Transition to Risk-Informed NFPA-805

ML111010128
Person / Time
Site:	Diablo Canyon
Issue date:	04/11/2011
From:	Pacific Gas & Electric Co
To:	Office of Nuclear Reactor Regulation
Wang, A B, NRR/DORL/LPLIV, 415-1445
References
TAC ME5888, TAC ME5889
Download: ML111010128 (14)

Text

NFPA 805 Transition Project Pre-Application Meeting with NRC pp g

04/11/2011

2 INTRODUCTION PG&E Representatives Michael RichardsonRegulatory Services Paul Bemis....Strategic Projects Oversight (SPO)

Brent Waggener...Technical Coordinator John PyoFPRA / FREs Lead (by phone) y

( y p

)

Project Consultants - EPM and Tri-En Bob Kalantari...Director of Engineering (EPM) (by phone)

Mark CromptonProject Manager (EPM)

Ray DyerSite FRE Engineer (EPM)

Fleur de Peralta...Project Manager (Tri-En) (by phone)

3 NFPA 805 TRANSITION PROJECT ORGANIZATION CHART DIABLO CANYON POWER PLANT

4 SUBMITTAL TYPE PG&E will make a full NFPA 805 LAR submittal on June 29, 2011 Implementation of the proposed staggered submittal process may impact this decision Augment submittal

5 MEETING OBJECTIVES

• Share progress FPRA FREs Transition Report Transition Report

• Discuss challenges

• PG&E LAR review process

• Discuss modifications

• Post LAR submittal tasks

6 PROGRESS Fire PRA Model Development Peer Review: (December 6-9, 2010) 16 Findings 4 Resolved 12 Open (to be completed by 6/29/2011)

Best Practices (CS, FSS, MCA)

All supporting requirements (SRs) Capability Category-II (CC-II) or higher except two CC-Is

Site specific data is being gathered to upgrade CC-Is to CC-IIs Deviations from guidance in FPRA Model?

7 PROGRESS (Cont)

Fire Risk Evals (FREs)

• VFDR Descriptions Complete

• Determination of Risk

• As-Built Complete

• As-Modified (Completion early May, once Mods/RAs identified)

• Recovery Action Identification 5/02/2011

• In progress (Anticipate ~35/Unit)

• Modification Identification 5/02/2011

• In progress

• E.g., Incipient Detn, RCP seal cooling and ERFBSs.

• Deviations carried forward as Recovery Actions or DID actions?

8 PROGRESS (Cont)

Transition Report Complete/Under Review Fundamental Fire Protection Review (Table B-1)

NSCA Methodology Review (Table B-2)

Radioactive Release Review NSCA Non-Power Operations In Progress Fire Area Transition (Table B-3)

FREs Transition Report

9 CHALLENGES

• Time constraints

• 1 Pass on FREs o Iterations to be performed post-submittal

• Industry resource constraints

• Limited number of qualified people

• Internal management reviews

• Director level reviews

10 CHALLENGES (Cont)

• Other Large DCPP LARs

• License Renewal

• Digital Controls

• Long Term Seismic Program Long Term Seismic Program

• License Basis Verification Project

• Outage - 2R16

11 REVIEWS PG&E LAR Review Process

• Internal LAR sufficiency review y

12 MODIFICATIONS

• Incipient Detection

• RCP Seal Cooling

• ERFBS Installation prior to SER?

If so, when?

13 POST-LAR SUBMITTAL TASKS DCPP plans to perform additional iterations using RIPB evaluation techniques to optimize the number of techniques to optimize the number of modifications needed to achieve performance objectives.

14

SUMMARY

• Full submittal on 6/29/2011

• staggering may impact

• Conservative Compliance Strategies

• Additional FRE/RIPB Iterations

• Augment submittal