ML081570529

Relief Request from Immediate ASME Code Flaw Repair of Low Pressure Service Water Piping Relief Request 08-ON-003

ML081570529
Person / Time
Site:	Oconee
Issue date:	06/16/2008
From:	Olshan L N NRC/NRR/ADRO/DORL/LPLII-1
To:	Baxter D Duke Energy Carolinas
Olshan L N, NRR/DORL, 415-1419
References
TAC MD8482
Download: ML081570529 (3)

Text

June 16, 2008

Mr. Dave Baxter Vice President, Oconee Site Duke Energy Carolinas, LLC 7800 Rochester Highway Seneca, SC 29672

SUBJECT:

OCONEE NUCLEAR STATION, UNIT 1, RELIEF REQUEST FROM IMMEDIATE ASME CODE FLAW REPAIR OF LOW PRESSURE SERVICE WATER PIPING RELIEF REQUEST 08-ON-003 (TAC NO. MD8482)

Dear Mr. Baxter:

By letter dated April 7, 2008, you submitted Relief Request (RR) No. 08-ON-003, which proposed an alternative to the American Society of Mechanical Engineers, Boiler and Pressure Vessel Code (Code),Section XI, IWB-3132.2 requirements. In lieu of the ASME Code requirements, you proposed to accept the leaks on the downstream flange of low-pressure service water piping (LPSW) 1LPSW-21 for continued operation until the Unit 1 end-of-cycle (EOC) 24 refueling outage (RFO) using an engineering evaluation as directed by Generic Letter 90-05, "Guidance for Performing Temporary Non-Code Repair of ASME Code Class 1, 2, and 3 Piping."

You proposed the subject relief request for leaks discovered on or about January 3, 2008, on the downstream flange of 1LPSW-21, a butterfly valve in the LPSW system. You determined that performing a Code compliant repair/replacement activity at the time of the discovery of the leaks was impractical. You proposed RR 08-ON-003 to defer the Code repair/replacement until the Unit 1 EOC24 RFO.

Your letter proposing RR 08-ON-003 was dated April 7, 2008. The Oconee Nuclear Station, Unit 1 EOC24 RFO began April 12, 2008, and you performed the Code-required repair/replacement activities during this RFO. Therefore, RR 08-ON-003 is moot at this point and no further review will be performed.

If you have any further questions on this matter, please contact me at 301 415-1419.

Sincerely,

/RA/

Leonard N. Olshan, Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

Docket No. 50-269

cc: See next page June 16, 2008 Mr. Dave Baxter Vice President, Oconee Site Duke Energy Carolinas, LLC 7800 Rochester Highway Seneca, SC 29672

SUBJECT:

OCONEE NUCLEAR STATION, UNIT 1, RELIEF REQUEST FROM IMMEDIATE ASME CODE FLAW REPAIR OF LOW PRESSURE SERVICE WATER PIPING RELIEF REQUEST 08-ON-003 (TAC NO. MD8482)

Dear Mr. Baxter:

By letter dated April 7, 2008, you submitted Relief Request (RR) No. 08-ON-003, which proposed an alternative to the American Society of Mechanical Engineers, Boiler and Pressure Vessel Code (Code),Section XI, IWB-3132.2 requirements. In lieu of the ASME Code requirements, you proposed to accept the leaks on the downstream flange of low-pressure service water piping (LPSW) 1LPSW-21 for continued operation until the Unit 1 end-of-cycle (EOC) 24 refueling outage (RFO) using an engineering evaluation as directed by Generic Letter 90-05,"Guidance for Performing Temporary Non-Code Repair of ASME Code Class 1, 2, and 3 Piping."

You proposed the subject relief request for leaks discovered on or about January 3, 2008, on the downstream flange of 1LPSW-21, a butterfly valve in the LPSW system. You determined that performing a Code compliant repair/replacement activity at the time of the discovery of the leaks was impractical. You proposed RR 08-ON-003 to defer the Code repair/replacement until the Unit 1 EOC24 RFO.

Your letter proposing RR 08-ON-003 was dated April 7, 2008. The Oconee Nuclear Station, Unit 1 EOC24 RFO began April 12, 2008, and you performed the Code-required repair/replacement activities during this RFO. Therefore RR 08-ON-003 is moot at this point and no further review will be performed.

If you have any further questions on this matter, please contact me at 301 415-1419.

Sincerely,

/RA/

Leonard N. Olshan, Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

Docket No. 50-269

cc: See next page DISTRIBUTION:

Public RidsOgcRp RidsNrrDorlDpr LPL2-1R/F RidsAcrsAcnw&mMailCenter RidsNrrCpnb (TChan) RidsNrrPMLOlshan RidsNrrDorlLpl2-1 (MWong) RidsNrrOd RidsNrrLAMO'Brien RidsRgn2MailCenter (JMoorman) RidsNrrAdes M. Cox, EDO Rgn II K. Hoffman, NRR

Accession Number: ML081570529 memo transmitted

• OFFICE NRR/LPL2-1/PM NRR/LPL2-1/LA NRR/CPNB/BC NRR/DCI/CPNB NRR/LPL2-1/BC NAME LOlshan MO'Brien TChan

• KHoffman

• MWong DATE 6/16/08 06/12/08 06/03/08 06/03/08 6/16/08 OFFICIAL RECORD COPY Oconee Nuclear Station, Units 1, 2, and 3

cc:

Mr. Dave Baxter Vice President, Oconee Site Duke Power Company LLC 7800 Rochester Highway Seneca, SC 29672

Ms. Lisa F. Vaughn Associate General Counsel and Managing Attorney Duke Energy Carolinas, LLC 526 South Church Street - EC07H Charlotte, North Carolina 28202

Manager, LIS NUS Corporation 2650 McCormick Dr., 3rd Floor Clearwater, FL 34619-1035

Senior Resident Inspector U.S. Nuclear Regulatory Commission 7812B Rochester Highway Seneca, SC 29672

Mr. Henry Porter, Director Division of Radioactive Waste Management Bureau of Land and Waste Management Dept. of Health and Env. Control 2600 Bull St.

Columbia, SC 29201-1708

Mr. B. G. Davenport Regulatory Compliance Manager Oconee Nuclear Site Duke Energy Corporation

ON03RC 7800 Rochester Highway Seneca, SC 29672

Ronnie L. Gardner, PMP Manager, Site Operations and Corporate Regulatory Affairs AREVA NP Inc.

An AREVA AND Siemens Company 3315 Old Forest Road OF -16 Lynchburg, VA 24501

Mr. Leonard G. Green Assistant Attorney General NC Department of Justice P.O. Box 629 Raleigh, NC 27602

Mr. R. L. Gill, Jr.

Manager - Nuclear Regulatory Issues and Industry Affairs Duke Power Company LLC 526 S. Church St.

Mail Stop EC05P Charlotte, NC 28202

Division of Radiation Protection NC Dept of Environment, Health, & Natural Resources 3825 Barrett Dr.

Raleigh, NC 27609-7721

Mr. Peter R. Harden, IV VP-Customer Relations and Sales Westinghouse Electric Company 6000 Fairview Road 12th Floor Charlotte, NC 28210

Mr. Henry Barron Group Vice President, Nuclear Generation and Chief Nuclear Officer P.O. Box 1006-EC07H Charlotte, NC 28201-1006

Mr. Charles Brinkman Director, Washington Operations Westinghouse Electric Company 12300 Twinbrook Parkway, Suite 330 Rockville, MD 20852

Ms. Kathryn B. Nolan Senior Counsel Duke Energy Carolinas, LLC 526 South Church Street - EC07H Charlotte, NC 28202