ML20212J540

Discusses Completion of Licensing Action for NRC Bulletin 96-003, Potential Plugging of ECC Suction Strainers by Debris in Bwrs. Bulletin Closed for Unit 2 by NRC

ML20212J540
Person / Time
Site:	Limerick
Issue date:	06/28/1999
From:	Buckley B NRC (Affiliation Not Assigned)
To:	Geoffrey Edwards PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
References
IEB-96-003, IEB-96-3, TAC-M96154, NUDOCS 9907060051
Download: ML20212J540 (4)

Text

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sp lr uo UNITED STATES g

j NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20666 4 001

%*****/ June 28, 1999 Mr. Garrett D. Edwards Director Licensing, MC 62A-1 PECO Energy Company Nuclear Group Headquarters Correspondence Control Desk P.O. Box 195 Wayne, PA, 19087-0195

SUBJECT:

COMPLETION OF LICENSING ACTION FOR NRC BULLETIN 96-03, LIMERICK GENERATING STATION, (LGS), UNIT 2 (TAC NO. M96154)

Dear Mr. Edwards:

On May 6,1996, the U.S. Nuclear Regulatory Commission (NRC) issued NRC Bulletin 96-03,

" Potential Plugging of Emergency Core Cooling Suction Strainers by Debris in Boiling-Water Reactors," to all holders of operating licenses or construction permits for boiling-water reactors (BWR). The NRC issued the bulletin to ensure that the emergency core cooling systems (ECCS)in BWRs can perform their intended safety function to mitigate the effects of a postulated loss-of-coolant accident (LOCA). The bulletin provided three options for resolving this issue including (1) installation of large capacity passive strainers, (2) installation of self-cleaning strainers, or (3) installation of a backflush system.

In the bulletin, the NRC staff specifically requested that licensees submit the following reports for each of their facilities:

1. A description of planned actions and mitigative strategies used, the schedule for implementation, and proposed technical specification, if applicable.

2. A report confirming completion and summarizing actions taken.

You provided your initial response to the bulletin by letter dated November 1,1996.

Subsequently, you provided an amendment application dated October 6,1997, as supplemented August 28,1998, for LGS, Unit 2, requesting approval of your planned implementation of Option 1 of the bulletin, which consisted of installing large capacity passive strainers. By NRC Amendment No. 99, dated May 19,1999, the staff approved your amendment request for LGS, Unit 2. Subsequently, by letter dated June 1,1999, you informed the NRC staff that you had completed the installation of new large-capacity, passive strainers on the residual heat removal and core spray system suction lines at LGS, Unit 2. The NRC staff has determined that the actions you have taken for LGS, Unit 2 should minimize the potential for clogging of the above cited ECCS suction strainers and ensure the capability of the ECCS to provide long-term cooling following a LOCA as required by 10 CFR 50.46. Moreover, based on the actions you have taken, we find your intentions to discontinue some aspects of your monitoring program, as described in your June 1,1999, letter, to be appropriate.

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G. Edwards - As requested in your June 1,' 1999, letter, the bulletin is closed for LGS, Unit 2. The bulletin for LGS, Unit 1, was closed by NRC letter dated February 3,1999, if you have any questions regarding this matter, please contact me at (301) 415-1483.

Sincerely,

1. & twq i D CD Bartholomew C. Buckley, Sr. Project Manag r, Section 2 Project Directorate l Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-353 cc: See next page

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, . _ , s Limerick Generating Station, Units 1 & 2 cc'

' J. W. Durham, Sr., Esquire Chief-Division of Nuclear Safety Sr. V.P. & General Counsel PA Dept. of Environmental Resources PECO Energy Company P.O. Box 8469 2301 Market Street Harrisburg, PA 17105-8469 Philadelphia, PA 19101 Manager-Limerick Licensing,62A-1 Director-Site Engineering PECO Energy Company Limerick Generating Station j

' 965 Chesterbrook Boulevard P.O. Box 2300 I Wayne, PA 19087-5691 Sanatoga, PA 19464 I

, Mr. James D. von Suskil, Vice President Limerick Generating Station Manager-Experience Assessment Post Office Box 2300 Limerick Generating Station Sanatoga, PA 19464 P.O. Box 2300 4

J Sanatoga, PA 19464 Plant Manager Limerick Generating Station Library P.O. Box 2300 U.S. Nuclear Regulatory Commission Sanatoga, PA 19464 Region 1 475 Allendale Road Regional Administrator, Region i King of Prussia, PA 19406 U.S. Nuclear Regulatory Commission 475 Allendale Road Senior Manager-Operations King of Prussia, PA 19406 . Limerick Generating Station P.O. Box 2300 -

Senior Resident inspector Sanatoga, PA 19464 )

U.S. Nuclear Regulatory Commission Limerick Generating Station Dr. Judith Johnsrud 1 P.O. Box 596 National Energy Committee Pottstown, PA 19464' Sierra Club 433 Orlando Avenue i Chairman State College, PA 16803 Board of Supervisors of Limerick Township 646 West Ridge Pike Linfield, PA 19468 1

wk G. Edwards l l

l As requested in your June 1,1999, letter, the bulletin is closed for LGS, Unit 2. The bulletin for LGS, Unit 1, was closed by NRC letter dated February 3,1999.

If you have any questions regarding this matter, please contact me at (301) 415-1483.

Sincerely, ORIGINAL SIGNED BY:

Bartholomew C. Buckley, Sr. Project Manager, Section 2 Project Directorate i Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-353 cc: See next page i

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