I.E BWR Owners' GroupOWNERS' GROUP

Rich Anderson (NextEra Energy)

BWROG Executive Chair.

BWROG I NRC ManagementPublic MeetingMay 15, 2009

BWROG

Agenda

Introductions

BWROG Submittals

ECCS Gas Intrusion

ECCS Suction Strainers

GI 193 ECCS Suction Concern

MOV Magnesium Rotors

TSTF update2/

BWROG /

BWROG

Mission

Provide a forum, in the spirit of partnership withGeneral Electric - Hitachi, that allows its memberutilities to:" maintain and improve plant safety," achieve higher plant reliability," minimize and share costs,* facilitate regulatory interaction,* and effectively apply limited technical resources for

mutual resolution of issues applicable to two ormore members.

3/BWROG /

BWROG

Leadership

Executive Oversight Committee* Rich Anderson, NextEra Energy (Chair BWROG Exec Committee)* Oscar Limpias, Entergy (Vice Chair BWROG Exec Committee)* Rick Libra, Exelon* Paul Davison, PSEG Nuclear* Joe Donahue, Progress Energy" Dennis Madison, Southern Company

BWROG General Committee* Chair: Doug Coleman, Energy Northwest" Vice Chair: Ted Schiffley, Exelon (becomes Chair January 2010)" Program Manager: Ken McCall, GEH

4/BWROG /

Schedule ReviewBWROG Submittals

Doug Coleman (Energy Northwest)

BWROG Chairman

5/BWROG /

Current BWROG Submittals

*Recent CompletionsODYSY (Stability)

* Revision A submitted April2009

* Final SE received Feb 2009

PTC-GEH" Revised TR submitted Jan

2009" Draft SE received March

2009" Final SE received May 2009" Revision A planned for June

2009.

6/BWROG /

Current BWROG Submittals

Delayed Schedule

RITS 4a/6b* NRC requested BWROG

withhold re-submittal untilMay 2009 (following draftSE for PWROG submittal)

* Prepared to resubmit

Reg Guide 1.97" RAI responses submitted

Oct 08" Final SE originally expected

May 09" Delay in reviews

Containment AccidentPressure Credit" RAIs responses submitted

March 2009* Draft SE expected May

2009* NRR request for

Commission guidancebecause of ACRS concernswill delay final SE

7/BWROG /

BWROGECCS Gas Intrusion

Doug Coleman (Energy Northwest)

BWROG Chairman

8/BWROG /

ECCS Gas Intrusion

Background

BWROG committee formed to address:* Generic Letter 2008-01, "Managing Gas

Intrusion in Emergency Core Cooling,Decay Heat Removal and ContainmentSpray Systems"

" SER 2-05 Revision 1 "Gas Intrusion inSafety Systems"7

These slides include updates, since theNovember 2008 EOC-NRC Meeting

9'BWROG /

ECCS Gas Intrusion

Industry Response

In response to the GL, the industry has:- Formed a Gas Accumulation Management team- Engaged the BWROG, PWROG, NEI, EPRI, and INPO- Developed Operability acceptance criteria- Conducted testing on gas transport

Plants have:- Performed detailed walkdowns of systems- Determined critical locations and established acceptance criteria- Implemented numerous improvements in plant:

- Monitoring of gas- Processes (Operations, Work Management, Outage Planning)- Procedures- Training- Corrective Action Programs

10/BWROG /

EGCS Gas Intrusion

Gas Accumulation Team (GAT)

Management Team:* Doug Coleman

- BWROG Chairman

" Denny Buschbaum- PWROG Chairman

* Mike Melton- Nuclear Energy Institute

11/BWROG /

ECCS Gas Intrusion

Technical Support TeamT1

Utility Leadership* Chris Brennan, BWROG Gas Intrusion Committee Chair, Exelon,*Andersen Lin, PWROG lead, PG&E

Utility Technical Support NSSS Vendor Leadership

Laird Bruster, FPL Energy * Greg Holmes, GE-Hitachi

Mo Dingier, WCNOC Bill Turkowski, Westinghouse

Brian Dunn, FPL Energy Industry Technical Support

Les England, Entergy 0 Nick Camilli, EPRI

Don Gregoire, Energy Northwest 0 Carl Faller, INPO

Wes McGoun, Progress Energy 0 Ken Huffman, EPRI

Brian McKercher, Dominion

Elizabeth Newberg, Xcel Energy

Mark Radspinner, APS 12/BWROG /

Completion of Products for 9-monthResponsesBWROG-TP-08-014 BWROG ECCS Pumps Suction VoidFraction Study

- Issued on 8/12/2008

BWROG-TP-08-017 Potential Effects of Gas Accumulation onECCS Analysis as Part of GL 2008-01 Resolution

- Issued on 9/9/2008

BWROG-TP-08-020 Effect of Voiding in ECCS Drywell Piping- BWROG EOC approved Project Change Request for this

work- Issued 9/17/08

All transmitted to NRC by the BWROG on April 30, 200913/

BWROG /

Completion of Products for 9-monthResponses (continued)BWROG-TP-08-021 (Fauske 08-70) Gas Voids PressurePulsations Program

- Re-issued on 9/3/2008 due to errors found in thecalculations section

BWROG-TP-08-022 (WCAP 16692-NP) Survey of PeriodicVenting and Industry Practices

- Issued 8/31/2008

All transmitted to NRC by the PWROG

14/BWROG /

ECCS Gas Intrusion

Industry Response

The industry's ongoing efforts include:- Developing an industry guideline document on

preventing and mitigating entrained gas- Addresses other systems beyond the GL (INPO SER

2-05 Rev 1)- Developing industry training modules (generic,

operations, maintenance)Determining appropriate Technical Specificationschanges

15/BWROG /

ECCS Gas Intrusion

Current Status

NRC Meeting March 19, 2009:- NRC is asking for industry comment on their

draft assessment criteria for GL 2008-01 reviews- NRC will issue the final assessment criteria to

NEI for industry distribution and information- Utilities will have the opportunity to supplement

their responses to GL 2008-01- NRC will follow-up and issue a GL response

assessment to each licensee for review (bySeptember 2009) and issue any RAIs withinapproximately 45 days

16/BWROG /

BWR ECCS Suction Strainers

Brian Davenport (Exelon)Committee Vice Chairman

17/BWROG /

ECCS Suction Strainers

Project Plan Major Topics

Downstream Effects

• Fuel- Debris Filter Clogging-Debris Deposition on Fuel

" Components- Clogging- Long-term effect of Abrasion

18/BWROG /

ECCS Suction Strainers

Project Plan - Major Topics (cont'd)F -7

Potential Changes to Debris Source Term

* Latent Debris

* Debris Transport and Erosion

e Coatings* Confirmation of Cal-Sil & Micro-Porous

QuantitiesInsulation

- Spherical Zone of Influence (ZOI ) Assumptionl Chemical Effects

19/BWROG /

ECCS Suction Strainers

Project Plan - Major Topics (cont'd)

Potential Effects on Head Loss Correlations

" Near Field Effect/Scaling

" Conservatism of NUREG/CR-6224 forCal-Sil & Micro-porous Insulations

e Thin Bed Effects

* Non-homogeneous debris beds

20/BWROG /

Relationship of Strainer Issues& Resolution Logic

Assess Questions on the Nature and Quantity of Debris 1. Downstream Effects of Debris

21/BWROG /

ECCS Suction Strainers

Committee Actions

Plan chemical effects and fuel blockage testing

* Phased approach

- Chemical dissolution testing (starting 2009)- Test GNF fuel first (starting 2010)- Determine whether testing of W and AREVA fuel

needed (2010)

- If necessary, use GNF fuel results to optimizetesting of other fuel (2011)

22 /BWROG /

ECCS Suction Strainers

Current Committee Actions

Complete URG-PWROG gap analysis reports andplan actions needed to address gaps

Downstream Effects: Perform adaptation of WCAP-16406 for use by all BWRs

Source Term: Continue containment walkdowns

Complete Operability Roadmap

Keep NRC informed of plans and actions23/

BWROG /

ECCS Suction Strainers

Major Tasks Completed to Date

PWR Survey on Downstream Effects oncomponents

Coatings: Report on assessment of BWROG,Industry,.and PWROG Activities since URG

Containment Walkdown Guidance DocumentWalkdown ProcedureJustification for resolution schedule letter to

NRC

24 /BWROG /

ECCS Suction Strainers

Major Tasks In Progress

Utility containment walkdownsGE-Hitachi Fuel Blockage Thermal-Hydraulic

AnalysisOperability CommuniqueOperability Guidance documentAdaptation of PWROG WCAP regarding downstream

effects on equipmentURG-PWROG Gap Analysis

- Break locations- All other gaps

25/BWROG /

ECCS Suction Strainers

Surveys Underway

PWR Su rvey on ZOI/Air Jet

BWR Su rveysLicensing Basis source termsInventory of Reactive Containment Materials

26/BWROG /

ECCS Suction Strainers

International Coordination

Participated in recent WANO workshop inFinland on strainer issues

Consulting with European BWRs on testingthey have performed

'Reviewing international testing results suppliedby NRC

27/BWROG /

ECCS Suction Strainers

BWROG Schedule

BWROG is in the process of refining the schedule

Schedule dependent on:- URG-PWROG gap analysis- GEH thermal-hydraulic analysis- Fuel testing planning with. GE-Hitachi- Chemical dissolution testing- Utility containment walkdowns

June committee meeting will refine the schedule

BWROG will meet with NRC staff to explain anddiscuss the schedule

28/BWROG /

GI 193 ECCS Suction ConcernsMOV Magnesium Rotor Failures

Rick Libra (Exelon)

BWROG EOC

29 /BWROG /

GI 193 ECCS Suction Concerns

UpdateNRC Letter to BWROG - GI-1 93, "ECCS Suction Concerns",Information Request Submitted to the BWROG, September 4.2008

GEH Draft Report - July 10, 2009

Proposed meeting - committee with NRC week of July 28,2009 to review report

Final Report - August 28, 2009

Open Request by NRC R&D for BWROG geometry(downcomer to suction strainer) information to support Purduetest facility runs in June 2009.

30 /BWROG /

MOV Magnesium Rotor Guideline

,Update

BWROG produced technical guideline: Inspection of MotorOperated Valve .Limitorque AC Motors with Magnesium Rotors

* Discussion of degradation and failure mechanisms formagnesium rotors

* How to inspect an in-service motor via borescope anddisassembled inspection

* Develop a standard acceptance criteria for inspection ofmagnesium rotors for both in-service and new motors

" Develop MOV programmatic implementation

31/BWROG /

MOV Magnesium Rotor Guideline

UpdateBWROG has offered to share this with PWROG, PWROG iscurrently evaluating.

BWROG is providing an "information only" copy to NRC asrequested at last EOC/NRC meeting November 2008.

BWROG considers portions of the document as proprietary.

32/BWROG /

TSTF Traveler Updates

Doug Coleman (Energy Northwest)

BWROG Chairman

33 /BWROG /

Technical Specifications

TSTF Traveler 493

TSTF-493, "Clarify Application of Setpoint Methodologyfor LSSS Functions" has been contentious with NRCStaff since it was originally submitted in January 2006

" Three revisions have been submitted to address evolvingissues and changes in staff position

" Revision 3 was submitted January, 2008" NRC Staff provided latest position in November .4, 2008

letter

A public meeting was held between NRC management,TSTF, and the PWROG and BWROG Chairmen onJanuary 8, 2009 to reach agreement on actionsneeded to close the issue

34 /BWROG 4

34

Technical Specifications

TSTF Traveler 493

The TSTF agreed to submit Revision 4 to provide:*Clarification of scope to include select Reactor Protection System andEmergency Core Cooling System and the additional BWR instrumentfunctions in TSTF-493, Revision 3 (excluding manual actuation circuits,mechanical devices, interlocks, permissive, and automatic actuationlogic circuits)

*A general statement in each TS Bases for functions not includedabove that states that calibrations are performed consistent with theplant's setpoint methodology

*An option to add a Setpoint Control Program to the "AdministrativeControls" of TS, and eliminate allowable values from the TS tables

*Implementation strategies for TSTF-493 that minimize the submittal ofinformation related to setpoint methodology and calculations

35 /

BWROG /

35

Technical Specifications

TSTF Traveler 493

The TSTF agreed to meet with the Staff whenTSTF-493 R4 is in final draft to resolve anymisunderstandings or discrepancies before it isformally submitted

The agreements in the January 8 meeting reflect acompromise that should lead to resolution of the issuewith the least impact

The TSTF documented the proposed solution in a letterdated February 23, 2009. NRC accepted the solutionin letter dated March 9, 2009.

36 /

BWROG /

36

Technical Specifications

TSTF Traveler 514

In the last few years, Resident Inspectors havequestioned the Operability of containment gaseousradiation leakage monitoring system.

Reduced RCS specific activity due to improved fuelperformance have rendered many plant's gaseousdetector unable to detect 1 gpm within 1 hour.

Last Fall, NRC DORL management became aware ofthe issue and engaged the TSTF to develop ageneric solution.

37 /BWROG /

37

Technical Specifications

TSTF Traveler 514

TSTF provided information that led the NRC to issueRIS 2009-02 and an Enforcement GuidanceMemorandum (EGM) in January to allow licensees totake no action until Travelers addressing the issueare approved.

Revision 1 of RIS 2009-02 issued May 8, 2009RIS stated that Operability is currently based on the ability todetect 1 gpm within 1 hour but that adopting the Traveler willallow Operability to be based on the original designassumptions.

EGM allows licensees 4 months to submit an LAR afterTraveler approval and then is extended until LAR approval.

38/BWROG

38

Technical Specifications

TSTF Traveler 514

Two Travelers were submitted in February.

TSTF-513 is applicable to PWRs

TSTF-514 is applicable to BWRs.Provides shorter CT when gaseous monitor is the onlyOperable monitor (7 days vs. 30 days)

Provides 72 hours instead of LCO 3.0.3 entry when noleakage monitors are Operable

Clarifies the Operability requirements for all monitors

TSTF requested a fee waiver for the NRC review of TSTF-513and TSTF-514.

39 /BWROG /

39