ML20141L888

Discusses Completion of Licensing Action for GL 95-03, Circumferential Cracking of SG Tubes, Issued by NRC on 950428

ML20141L888
Person / Time
Site:	Byron, Braidwood, Zion  File:ZionSolutions icon.png
Issue date:	05/28/1997
From:	Stewart Bailey NRC (Affiliation Not Assigned)
To:	Johnson I COMMONWEALTH EDISON CO.
References
GL-95-03, GL-95-3, TAC-M92224, TAC-M92225, TAC-M92226, TAC-M92227, TAC-M92290, TAC-M92291, NUDOCS 9706030109
Download: ML20141L888 (5)

Text

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• %g ef6d L(L p k UNITED STATES gQ l

NUCLEAR REGULATORY COMMISSION l '2 WASHINGTON, D.C. 20066-0001

..... May 28, 1997 1

Ms. Irene Johnson, Acting Manager I l Nuclear Regulatory Services

! Commonwealth Edison Company l

Executive Towers West III l 1400 Opus Place Suite 500 Downers Grove, IL 60515

SUBJECT:

COMPLETION OF LICENSING ACTION FOR GENERIC LETTER 95 BRAIDWOOD l STATION, UNITS 1 AND 2: BYRON STATION, UNITS 1 AND 2: AND ZION STATION, UNITS 1 AND 2 (TAC NOS. M92224 M92225, M92226. M92227, M92290 AND M92291)

Dear Ms. Johnson:

i

On April 28, 1995, the U.S. Nuclear Regulatory Commission (NRC) issued Generic l Letter (GL) 95-03 "Circumferential Cracking of Steam Generator Tubes," to all

! holders of o>erating licenses or construction permits for pressurized-water i reactors. T1e NRC issued GL 95-03 for three principal reasons: l i (1) Notify addressees about the safety significance of the recent steam generator tube inspection findings at Maine Yankee Atomic Power Station.

1 (2) Request that all addressees implement the actions described within the l generic letter.

(3) Require that all addressees submit a written response regarding implementation of the requested actions to the N C.

l In addition, GL 95-03 alerted addressees to the importance of performing comprehensive examinations of steam generator tubes using techniques and equipment capable of reliably detecting the types of degradation to which the /

steam generator tubes may be susceptible. The staff also noted that the l performance of steam generator tube examinations is controlled, in part by 0 l 10 CFR Part 50, Appendix B.

In GL 95-03, the NRC staff also requested that licensees take the following actions:

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(1) Evaluate recent operating experience with respect to the detection and l sizing of circumferential indications to determine the applicability to l

their plants.

(2) On the basis of the evaluation in Item (1) above, as well as past

> inspection scope and results, susceptibility to circumferential

. cracking, threshold of detection, expected or inferred crack growth rates, and other relevant factors, develop a safety assessment justifying continued operation until the next scheduled steam generator tube inspections.

020024 NRC FLE CENTER COPY 9706030109 970528 PDR ADOCK 05000295

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I. Johnson  ;

(3) Develop plans for the next steam generator tube inspections as they pertain to the detection of circumferential cracking. The inspection plans should address, but not be limited to, scope (including sample expansion criteria, if applicable), methods, equipment, and criteria (including personnel training and qualification).

To document the outcome of these actions, the NRC staff requested that addressees prepare and submit the following:

(1) A safety assessment justifying continued operation, predicated on the evaluation performed in accordance with requested actions 1 and 2.

-above.

(2) A summary of the inspection plans developed in accordance with requested action 3, above, and a schedule for the next p13nned inspection.

In response to GL 95-03. you provided letters dated June 27, 1995. October 13.

1995, and November 10. 1995, for Byron and Braidwood Stations, and letters dated June 27, 1995. September 28, 1995, and November 10, 1995. for Zion l Station. These submittal (s) provided the information requested by GL 95-03: ,

therefore. TAC Nos. M92224, M92225. M92226, M92227. M92290 and M92291 are i

closed. For your information, the staff's findings regarding this issue are contained in NUREG-1604. "Circumferential Cracking of Steam Generator Tubes."

! If you have any questions regarding this matter, please contact me at (301) 415-1321.

Sincerely.

Original signed by:

Stewart Bailey, Project Manager Project Directorate III ~

Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation Docket Nos. STN 50-454, STN 50-455, STN 50-456, STN 50-457. 50-295. 50-304 cc w/ encl: see next page-Distribution: Docket File NBLIC PDIII-2 r/f J. Roe JWR E. Adensam EGA1 R. Assa R. Capra C. Moore S. Bailey G. Dick C. Shiraki S. Demtek. SPO-L OGC, 015B18 ACRS. T2E26 R. Assa M. Dapas RIII D. Mcdonald R. Lanksbury, RIII K. Karkowski. EMCB DOCUMENT NAME: G:\CMNTJR\BA LEY \GL9503.00C To receive a copy of this document, i indicate "C" = Copy4n #w enclosures without ing: "E" = Copy with enclosures "N" = No copy 0FFICE PM:PDIII-2 l6 _A:9 Dill-2 l UM:PDllS2,l5 PM:PDIll-2lg, D:PDill-2 l e NAME SBAILEY 4 7 @00RE}' GDICK WWf - CSHIRAKid RCAPRA A DATE 05/2p/97 ~ 05/TJ97 05/fp/97 05/d/97 05/28/9/

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I. Johnson Byron /Braidwood Power Stations Commonwealth Edison Company cc:

Mr. William P. Poirier, Director George L. Edgar Westinghouse Electric Corporation Morgan, Lewis and Bochius l Energy Systems Business Unit 1800 M Street, N.W.

l Post Office Box 355, Bay 236 West Washington, DC 20036 Pittsburgh, Pennsylvania 15230 Attorney General l Joseph Gallo 500 Sou+h Second Street l Gallo & Ross Springf teld, Illinois 62701 l 1250 Eye St., N.W.

! Suite 302 EIS Review Coordinator Washington, DC 20005 U.S. Environmental Protection Agency

! 77 W. Jackson Blvd.  ;

i Michael I. Miller, Esquire Chicago, Illinois 60604-3590 l l Sidley and Austin '

! One First National Plaza Illinois Department of l Chicago, Illinois 60603 Nuclear Safety 5

Office of Nuclear Facility Safoty Howard A. Learner 1035 Outer Park Drive Environmental law and Policy Springfield, Illinois 62704 i

Center of the Midwest 203 North LaSalle Street Commonwealth Edison Company Suite 1390 Byron Station Manager Chicago, Illinois 60601 4450 North German Church Road l Byron, Illinois 61010 l U.S. Nuclear Regulatory Commission I Byron Resident Inspectors Office Kenneth Graesser, Site Vice President 4448 North German Church Road Byron Station Byron, Illinois 61010-9750 Commonwealth Edison Station 1 4450 N. German Church Road

Regional Administrator, Region III Byron, Illinois 61010 U.S. Nuclear Regulatory Commission ,

801 Warrenville Road U.S. Nuclear Regulatory Commission .

Lisle, Illinois 60532-4351 Braidwood Resident Inspectors Office l Rural Route #1, Box 79 Ms. Lorraine Creek Braceville, Illinois 60407 Rt. 1, Box 182 Manteno, Illinois 60950 Mr. Ron Stephens Illinois Emergency Services Chairman, Ogle County Board and Disaster Agency Post Office Box 357 110 East Adams Street l Oregon, Illinois 61061 Springfield, Illinois 62706 Mrs. Phillip B. Johnson Chairman j

1907 Stratford Lane Will County Board of Supervisors

[ Rockford, Illinois 61107 Will County Board Courthouse

! Joliet, Illinois 60434 t

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l Commonwealth Edison Company i -Braidwood Station Manager Rt. 1, Box 84 l Braceville, Illinois 60407 Ms. Bridget Little Rorem Appleseed Coordinator 117 North Linden Street Essex, Illinois 60935 Document Control Desk-Licensing Commonwealth Edison Company l 1400 Opus Place, Suite 400

! Downers Grove, Illinois 60515

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l Mr. H. G. Stanley Site Vice President Braidwood Station ~

i Commonwealth Edison Company l

RR 1, Box 84 l Braceville, IL 60407 )

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, s o I.' Johnson Zion Nuclear Power Station Commonwealth Edison Company Unit Nos. I and 2 cc: _

Michael I. Miller, Esquire i Sidley and Austin One First National Plaza Chicago, Illinois 60603 Dr. Cecil Lue-Hing Director of Research and Development Metropolitan Sanitary District of Greater Chicago 100 East Erie Street Chicago, Illinois 60611 Phillip Steptoe, Esquire Sidley and Austin One First National Plaza Chicago, Illinois 60603 Mayor of Zion Zion, Illinois 60099 Illinois Department of Nuclear Safety Office of Nuclear Facility Safety 1035 Outer Park Drive Springfield, Illinois 62704 U.S. Nuclear Regulatory Commission Zion Resident Inspectors Office 105 Shiloh Blvd.

Zion, Illinois 60099 Regional Administrator U.S. NRC, Region III 801 Warrenville Road Lisle, Illinois 60532-4351 Station Manager Zion Nuclear Power Station 101 Shiloh Blvd.

Zion, Illinois 60099-2797 Document Control Desk-Licensing Commonwealth Edison Company 1400 Opus Place, Suite 400 Downers Grove, Illinois 60515