ML18059A563

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Summary of 931109 Meeting W/Util Re Activities Concerning Pts.List of Attendees & Viewgraphs Encl
ML18059A563
Person / Time
Site: Palisades 
Issue date: 12/01/1993
From: Hsia A
Office of Nuclear Reactor Regulation
To:
Office of Nuclear Reactor Regulation
References
NUDOCS 9312140392
Download: ML18059A563 (13)
v • d • e


Text

Docket No. 50-255 Decarber 1, 1993.*

LICENSEE: Consumers Power Company FACILITY: Palisades Nuclear Generating Plant

SUBJECT:

SUMMARY

. OF MEETING HELD ON NOVEMBER 9, 1993, WITH CONSUMERS.POWER COMPANY ON PALISADES PRESSURIZED THERMAL SHOCK ISSUE On November 9, 1993, member; of the.N~C staff*met with representatives of the Consumers Power Co~pany (CPCo) to discus~ the Palisades activities r~lated to pressurized thermal shock (PTS).

Enclosure I lists the meeting attendees.

-Enclosure 2 is a. copy_ of the material presented ~y the. l ic.ensee.

The meeting focus~d upon the ~hemical c6mpositi6n of the Palisades reactot vessel welds.

The ~eactor fluence calcul~tions were also discussed.. The*.

licensee descri~ed its activities in obtaining_ and analyzing the available weld data as well.as-the planned acti_vities in the surv~illanc~ program and

~essel arinealing considerations.

Tri demohstrate th*t the Palisades reactor vessel will be below the PTS screening ctiteria at the_e~piration of its*.

. license in 2007, the licensee is considering*:. '(I) gathering add.itional weld Chemistry data from its mothballed steam generators, (2) institutfog'*a~

  • surveillance program containing the limiting weld, (3) anneali_ng the reacto~

~vessel, and. (4) *instituting ultra lo.w leakage-fuel* strategy..

I The. licensee -had not provided sufficient techn.ical justificatfon for *.

eliminating certain data points. as proposed in.its June 5, 1992,* ~*na:.

January* 7, i993, submittal s. The staff noted* that alternate metho~s:: of data*

evaluation* suc_h as weighting chemistry values 'based on whether-' they.are

~ssociated with. single or tandem wi~e ~elding* processes-may be ap~ropriate.

However,- these or any other proposed appl'.'oaches *would require *a *supporting

-technical justification based on sound mechanistic considerations.

Th~ staff...

  • em~hasized th~t.the licensee should.take prompt ~ction td*resblve this.issue and**the licensee agreed to provide the schedule fo~*its plann~d PfS. activities* *.

and the revised PTS eval~ation.

I

. 9312140392.. 9a12-oi 1

. PDR ADOCK. 05000255.

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Enclosures:

l~ Meeting attendees

  • 2.

Licensee slides cc: w/enclosures See next a e OFFICE LA: P.D3 l

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  • Original signed by.. _

Anth6ny k. Hsia, Project Man~~et Project Directorate III-I

'Divis,ion of Reacto'r Projects -- 111/IV/V ~- * *-

Office of Nuclear Re~ttdr Regulation A D:PD31 OFFICIAL RECORD COPY *FILENAME:

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MEETING

SUMMARY

, FOR MEETING HELD ON 11 /09/93 DATED:

Decamer 1. 1993 DISTRIBUTION W/ENCLOSURES 1 AND 2 Ol.ctc.lr.tt-Ftl~

. NRC & LPDRs PD31 Reading

  • B. Jorgensen Riii
  • A. Hsia

.DISTRIBUTION WITH ENCLOSURE 1 ONLY T. Murley/F. Miraglia 12/G/18.

L. J~ Call~n, Acting J. Roe J. Zwolinski.

A. R. *slough..

C *. Jamerson.

OGC E. Jordan

  • T. Kobetz
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.. *K* Wichman

'. S; Sheng

  • E.* Hackett
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Consumers Power Company cc:

M. I. Miller, Esquire Sidley & Austin 54th Floor One First National Plaza Chicago, Illinois 60603 Mr. Thomas A. McNish, Secretary Consumer$ Power Company

. 212 West Michigan Avenue

  • Jackson, Michigan 49201 Judd l. Bacon, Esquire Consumers Power Company
  • 212 West Michigan Avenue Jackson, Michigan 49201 Regional Administrator, Region III U.S. Nuclear Regulatory Commissipn 799 Roosevelt Road Glen Ellyn, Illinois 60137 Jerry Sarno Township Supervisor Covert Township 36197 M-140 Highway Covert, Michigan 49043 Office of the Governor Room 1 - Capitol Building Lansing, Michigan 48913 Mr. David W. Rogers Safety and licensing Director
  • Palisades Plant 27780 Blue Star Memorial Highway
Covert, Michigan 49043 U.S. Nuclear Regulatory Commission Resident Inspector Office.

Palisades Plant 27782 Blue Star Memorial Highway Covert, Michigan 49043 Palisades Plant Mr. Gerald B. Slade Plant General Manager Palisades Plant Consumers Power Company 27780 Blue Star Memorial Highway Covert, Michigan 49043 Nuclear Facilities and Environmental Monitoring Section Office.

Division of Radiological Health Department of Public Health 3423 N. Logan Street P. 0. Box 30195 Lansing, Michigan 48909 Gerald Charnoff, Esquire Shaw, Pittman, Potts and Trowbridge 2300 N Street, N. W.

W~sbington DC 20037 Alora Davis Commitment Tracking System Coordinator Pali sades Pl ~nt Consumers Power Company 27780 Blue Star Memorial Hwy.

Covert, Michigan 49043-9530 July 1993.

y MEETING WITH NRC AND CONSUMER POWER REGARDING PRESSURIZED THERMAL SHOCK November 9, 1993 fjAM[

ORGANIZATJON Dick Smedley

.Consumers Power Co.

Tom Buczwinski Consumers Power Co.

John Kneeland Consumers *Power Co.

Rich Orosz Consumers Power Co.

David W. Rogers Consumers Power Co..

George Goralski Consumers Power Co.*

Phil Flenner Consumers Power Co.

Don. Bemis Consumers Power Co.

Bud Gerling Consumers Power Co.

Tim Kobetz NRC Riii Barry J. Elliot NRR/EMCB

. Keith Wichman NRR/EMCB Simon Sheng NRR/EMCB Ed Hackett NRR/EMCB Lambros Lois NRR/SRXB

. Jack Strosnider NRR/EMCB Tony Hsia NRR/DRPW Jim Nestell MPR Assoc.

Kevin Graney Serch Licensing/Bechtel ENCLOSURE 1 Power

PALISADES NUCLEAR PLANT CPCo MEETING WITH NRC PALISADES PTS INITIATIVES NOVEMBER 9, 1993

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llUC.lllliA.ln ntlfilUU

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AGENDA INTRODUCTION. * *... * *.. * * * * * *...

  • RWSMEDLEY REVIEW OF AGENDA * *. * *.... * * * * * *. RWSMEDLEY OVERVIEW AND OBJECTIVES *... ~... -.... RDOROSZ CPC PTS ACTIVITY... -............. T ABU.CZWINSKI CPC PLANNED ACTIVITY *... *...... T ABUCZWINSKI

. ACTIVITIES BEING CONSIDERED...... T ABUCZWINSKI DISCUSSION AND COMMENTS.... *... T ABUCZWINSKI

SUMMARY

AND CONCLUSIONS........... RDORosz

.\\

OBJECTIVES DESCRIBE CURRENT STATUS OF THE PALISADES PTS ACTIVITIES DESCRIBE OU_R PLANNED ACTIVITY..

ACTIVITIES BEING CONSIDERED 2

CURRENT STATUS OF THE -

PALISADES PTS ACTIVITIES IN REVIEW, OUR JUNE 5, 1992 SUBMITTAL:

JUSTIFIED THE USE OF BEST ESTIMATE COPPER

  • AND NICKEL CONTENT JUSTIFIED FLUENCE ESTIMATES

~

~

PROVIDED SUPPORTING INFORMATION FROM.

OTHER SURVEILLANCE PROGRAMS; AND, 3

CONCLUDED THE 1 OCFR50.61 CRITERION WILL NOT.

BE EXCEEDED BEFORE OUR 2007 EOL OUR JANUARY 7, 1993 SUBMITTAL:

REITERATED THE STATISTICAL RATIONALE AND*

SURVEILLANCE RESULTS SUBMITTED ON 6/5/92 SHOWED THAT THE OYSTER CREEK HEAT NO. W5214 SURVEILLANCE WELD WAS NOT FABRICATED IN A MANNER MEETING THE BEST ESTIM.ATE SELECTION CRITERIA USED IN OUR 6/5/92 SUBMITTAL

CURRENT STATUS OF THE PALISADES PTS ACTIVITIES (Cont) 4 SINCE THAT TIME WE HAVE, REVIEWED THE WELD FABRICATION PROCESSES AND ARE CONTINUING TO EVALUATE THE DATA*

REMOVED SURVEILLANCE CAPSULE W110 FROM

. THE REACTOR VESSEL AND ARE HAVING IT ANALYZED CONTINUED AN AGGRESSIVE EX-VESSEL AND IN-VESSEL DOSIMETRY PROGRAM CONTINUED VALIDATING THE CHEMISTRY DATA BASE BY PARTICIPATION IN THE ABB/RVG AND THE NUMARC AHAC RVI CEOG HAS PREPARED AN INTEGRATED SURVEILLANCE PROGRAM (CEOG TOPICAL)

PERFORMED PRELIMINARY RESEARCH TO IDENTIFY WELDS IN OUR RETIRED STEAM GENERATOR WHICH ARE SIMILAR TO OUR REACTOR VESSEL WELDS

I

(

. PLANNED ACTIVITIES - GROUP I OBTAIN WELD MATERIAL SAMPLES FROM OUR RETIRED STEAM GENERATORS TO:

TAKE CHEMISTRY MEASUREMENTS DETERMINE BASELINE MATERIAL PROPERTIES

' (INITIAL RT NOT AND USE) 5

  • .PROVIDE MATERIAL FOR SURVEILLANCE CAPSULES
  • . ALLOW PARTICIPATION IN TEST REACTOR PROGRAMS-PARTICIPATE IN. THE CEOG WELD VARIABILITY STUDY IMPLEMENT CE TOPICAL FOR INTEGRATED
  • SURVEILLANCE PROGRAM

PLANNED ACTIVITIES - GROUP II PARTICIPATE IN THE WESTINGHOUSE PROPOSED ANNEALING DEMONSTRATION DEVELOP CONCEPTUAL PLANS FOR REACTOR VESSEL ANNEALING 6

7 ACTIVITIES BEING CONSIDERED IMPLEMENT TEST REACTOR SURVEILLANCE PROGRAM

  • INSTALL SURVEILLANCE CAPSULES IN THE PALISADES
  • . REACTOR VESSEL*

ULTRA LOWtEAKAGE.FUEL.STRATEGY.

ENHANCED REACTOR V-ESSEL EXAMINATION-ANNEAL REACTOR VESSEL

  • PRE-STRESS REACTOR VESSEL

(

SUMMARY

AND CONCLUSIONS BASED ON THE INFORMATION IN OUR SUBMITTALS AND FURTHER REVIEW OF THE SURVEILLANCE DATA, WE CONTINUE TO CONCLUDE THAT WE WILL NOT EXCEED THE 50.61 CRITERION BEFORE 2007 8

WE WILL FURTHER SUBSTANTIATE THE ABOVE CONCLUSION BY SUBMITTING AN INTEGRATED SURVEILLANCE PROGRAM AFTER EVALUATION OF THE W110 SURVEILLANCE CAPSULE.

THE STEAM GENERATOR MATERIAL INITIATIVE WILL:*

ESTABLISH WELD CHEMISTRY.

PROVIDE INITIAL RT Nor AND USE DATA

  • *
  • REDUCE PTS MARGIN TERM *. *
  • WE ARE ESTABLISHING A RV ANNEALING PROGRAM TO ENSURE VESSEL INTEGRITY THROUGH PLANT OPERA TING LIFE
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