ML20202J026

Informs of Completion of Licensing Action for NRC Bulletin 96-03, Potential Plugging of Emergency Core Cooling Suction Strainers by Debris in Boiling-Water Reactors

ML20202J026
Person / Time
Site:	Limerick
Issue date:	02/03/1999
From:	Buckley B NRC (Affiliation Not Assigned)
To:	Geoffrey Edwards PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
References
IEB-96-003, IEB-96-3, TAC-M99153, NUDOCS 9902090024
Download: ML20202J026 (5)

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NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 2000H001 February 3, 1999 Mr. Garrett D. Edwards Director-Licensing, MC 62A-1 -

PECO Energy Company Nuclear Group Headquarters Correspondence Control Desk P.O. Box No.195 Wayne, PA 19087-0195

SUBJECT:

COMPLETION OF LICENSING ACTION FOR NRC BULLETIN 96-03, LIMERICK GENERATING STATION (LGS), UNIT 1 (TAC NO. M99153)

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 licensees or construction permits for boiling-water reactors (BWRs). 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.

In response to the bulletin, you provided an amendment application dated October 6,1997, as supplemented February 2,1998, for LGS, Units 1 and 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.128, dated May 14,1998, the staff approved your amendment request for LGS, Unit 1. Subsequently, by letter dated June 15,1998, you informed the NRC staff that you had completed the installation of new large-capacity, passive siminers on the residual heat removal and core spray system suction lines at LGS, Unit 1. The ARC staff has determined that the actions you have taken for LGS, Unit 1 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.

As requested in your June 15,1998, letter, the bulletin is closed for LGS, Unit 1.

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1 G. Edwards 1I We are continuing to evaluate your August 28,1998, response to our request for additional ,

information regarding net positive suction head analyses for LGS, Unit 2. l if you have any questions regarding this matter, please contact me at (301) 415-1483.

Sincerely, original signed by:  ;

Bartholomew C. Buckley, Senior Project Manager ,

Project Directorate 1-2 i Division of Reactor Projects - 1/II Office of Nuclear Reactor Regulation Docket No. 50-352 l cc: See next page  !

I DISTRIBUTION Docket File PUBLIC PDI-2 Reading I JZwolinski WDean BBuckley l MO'Brien OGC ACRS  !

CBerlinger  !

CCowgill, RGN-l W ]

OFFICE PDl-2/PM PDb2/LI?fI} SCSBn. O PDI-2/D NAME BBNkrb Md'Bbn CBerlikoe WDeanN DATE / /J7/99 l /N/99 T/ E/99 m h/h99 OFFICIAL RECORD COPY DOCUMENT NAME: Ll99153. GEN i

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G. Edwards  !

We are continuing to evaluate your August 28,1998, response to our request for additional information regarding net positive suction head analyses for LGS, Unit 2.

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

Sincerely, i

original signed by: j Bartholomew C. Buckley, Senior Project Manager Project Directorate 1-2 Division of Reactor Projects -l/II Office of Nuclear Reactor Regulation Docket No. 50-352 cc: See next page DISTRIBUTION Docket File PUBLIC PDI-2 Reading JZwolinski WDean BBuckley MO'Brien OGC 1 ACRS CBerlinger CCowgill, RGN-l W ,

OFFICE PDl-2/PM PDIM SCSBn. O PDI-2/D NAME BBh rb M dB n CBerlikge WDeanY DATE / /J7/99 / /99 IE/99

/ m h/h99 OFFICIAL RNCORD COPY '

DOCUMENT NAME: Ll99153. GEN i l

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G. Edwards We are continuing to evaluate your August 28,1998, response to our request for additional information regarding net positive suction head analyses for LGS, Unit 2.

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

Sincerely, 4.y CMf+J O- N Bartholomew C. Buckley, Senior Project Manager Project Directorate 1-2 '

Division of Reactor Projects - 1/II Office of Nuclear Reactor Regulation Docket No. 50-352 i cc: See next page

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~ Mr. Garrett D. Edwards Limerick Generating Station, Units 1 & 2 PECO Energy Company cc:

i J. W. Durham, Sr., Esquire Chief-Division of Nuclear Safety Sr. V.P. & General Counsel PA Dept. of Environmental Resources PECO Energy Company F.O. Box 8469 2301 Market Street Han3 burg, PA 17105-8469 Philadelphia, PA 19101 Manager-Limerick Licensing,62A-1 Director-Site Engineering l PECO Energy Company Limerick Generating Station 965 Chesterbrook Boulevard P.O. Box A Wayne, PA 19087-5691 Sanatoga, PA' 19464 Mr. James D. von Suskil, Vice President Limerick Generating Station Manager-Experience Assessment Post Office Box A Limerick Generating Station -

Sanatoga, PA 19464 P.O. Box A Sanatoga, PA 19464 Plant Manager 7

Limerick Generating Station Library P.O. Box A 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 A Senior Resident inspector Sanatoga, PA 19464 U.S. Nuclear Regulatory Commission Limerick Generating Station ' Dr. Judith Johnsrud

. P.O. Box 596 National Energy Committee Pottstown, PA 19464 Sierra Club 433 Orlando Avenue Director-Site Support Services State College, PA 16803 Limerick Generating Station P.O. Box A Sanatoga, PA 19464 Chairman Board of Supervisors .

of Limerick Township 646 West Ridge Pike Linfield, PA 19468

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