ML071260037
| ML071260037 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 06/04/2007 |
| From: | Lisa Regner NRC/NRR/ADRO/DORL/LPLII-2 |
| To: | Duncan R Carolina Power & Light Co |
| REGNER, Lisa, DORL/LPL2-2, 415-1906 | |
| References | |
| BL-04-001, TAC MC3483 | |
| Download: ML071260037 (4) | |
Text
June 4, 2007 Robert J. Duncan II, Vice President Shearon Harris Nuclear Power Plant, Unit 1 Carolina Power & Light Company P.O. Box 165 New Hill, NC 27562
SUBJECT:
BULLETIN 2004-01, INSPECTION OF ALLOY 82/182/600 MATERIALS USED IN THE FABRICATION OF PRESSURIZER PENETRATIONS AND STEAM SPACE PIPING CONNECTIONS AT PRESSURIZED-WATER REACTORS, RESPONSE FOR SHEARON HARRIS NUCLEAR POWER PLANT, UNIT 1 (TAC NO. MC3483)
Dear Mr. Duncan:
On May 28, 2004, the U.S. Nuclear Regulatory Commission (NRC) issued Bulletin 2004-01, Inspection of Alloy 82/182/600 Materials Used in the Fabrication of Pressurizer Penetrations and Steam Space Piping Connections at Pressurized-Water Reactors, to the industry. This bulletin informed addressees that current methods of inspecting the pressurizer penetrations and steam space piping connections fabricated from Alloy 82/182/600 materials may need to be supplemented with additional measures (e.g., bare-metal visual inspections) to detect pressurizer penetration and steam space piping connection flaws or leakage. The bulletin requested that addressees provide the NRC with information related to the materials of construction, the inspections that have been performed, and the inspections which will be performed to verify the integrity of the pressurizer penetrations and steam space piping connections.
By letter dated July 27, 2004, Carolina Power & Light Company (CP&L, the licensee) provided its responses to items 1a, 1b, 1c, and 1d of Bulletin 2004-01 for Shearon Harris Nuclear Power Plant, Unit 1 (Harris). CP&Ls responses described its materials of fabrication and past, current, and future pressurizer penetrations and steam space piping inspection programs at Harris.
CP&Ls response to item 1a reported that some of the materials used in the fabrication of the pressurizer penetrations and steam space piping connections were Alloy 82/182/600 materials.
In response to item 1b, CP&L described prior inspections and inspection results of pressurizer penetrations and steam space piping connections which had been performed at Harris. CP&Ls response included the basis for concluding that Harris satisfies the applicable regulatory requirements related to the integrity of pressurizer penetrations and steam space piping connections.
In response to item 1c in the bulletin, CP&L provided a description of the Alloy 82/182/600 pressurizer penetration and steam space piping connection inspection program that will be implemented at Harris during the next and subsequent refueling outages. The description included the items to be inspected; the percent coverage that would be performed at each location; the inspection methods to be used; the qualification standards for the inspection methods and personnel; the process used to resolve any inspection indications; the inspection documentation to be generated; and the basis for concluding that the licensee will satisfy the applicable regulatory requirements related to the structural and leakage integrity of pressurizer penetrations and steam space piping connections. If leaking pressurizer penetrations or steam space piping connections are found, CP&L indicated that follow-up nondestructive examination (NDE) will be performed to characterize flaws in the leaking penetrations. CP&L provided its plans for expansion of the scope of NDE to be performed if circumferential flaws are found in any portion of the leaking pressurizer penetrations or steam space piping connections.
In response to item 1d in the bulletin, CP&L explained why the inspection program identified in the response to item 1c in the bulletin is adequate for the purpose of maintaining the integrity of the Harris reactor coolant pressure boundary and for meeting all applicable regulatory requirements which pertain to the Harris facility.
By letter dated January 14, 2005, the licensee provided a response to item 2a in Bulletin 2004-01. This letter provided a statement to the NRC indicating that the inspections described in the response to item 1c of the bulletin were completed during a recent outage and a description of the as-found condition of the locations inspected was provided. CP&L also described any findings of relevant indications of through-wall leakage and follow-up NDE performed to characterize flaws in leaking penetrations or steam space piping connections. A summary of all relevant indications found by NDE, a summary of the disposition of any findings of boric acid, and a description of any corrective actions taken and/or repairs made as a result of the indications found were also provided in this letter.
The NRC staff has completed its activities associated with the review of CP&Ls responses to Bulletin 2004-01 for Harris and finds the licensee's response to be acceptable. It should be noted that industry commitments or staff regulatory actions may result in the need for the licensee to modify plans for the inspection and repair of items discussed in Bulletin 2004-01.
For example, specific actions addressed in topical report MRP-139, Materials Reliability Program: Primary System Piping Butt Weld Inspection and Evaluation Guideline and/or plant-specific Confirmatory Action Letters regarding dissimilar metal butt welds encompassed by Bulletin 2004-01 may exceed the scope of actions addressed in CP&Ls response to Bulletin 2004-01. It is the NRC staffs expectation that the CP&L plan will be revised for the inspection and repair of items discussed in Bulletin 2004-01 consistent with other industry commitments or staff regulatory actions. This closes the NRC staffs efforts with regard to the review of the Bulletin 2004-01 response for Harris.
Please contact Lisa Regner at (301) 415-1906 if you have any questions on this issue.
Sincerely, Lisa M. Regner, Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-400 cc: See next page
ML071260037 OFFICE LPL2-2/PM LPL2-2/PM LPL2-2/LA CVIB/BC LPL2-2/BC NAME LRegner SBailey CSola MMitchell TBoyce DATE 05/15/07 05/29/07 05/15/07 06/04/07 06/04/07
Mr. R. J. Duncan II Shearon Harris Nuclear Power Plant Carolina Power & Light Company Unit 1 cc:
David T. Conley Associate General Counsel II -
Legal Department Progress Energy Service Company, LLC Post Office Box 1551 Raleigh, North Carolina 27602-1551 Resident Inspector/ Harris NPS c/o U. S. Nuclear Regulatory Commission 5421 Shearon Harris Road New Hill, North Carolina 27562-9998 Ms. Margaret A. Force Assistant Attorney General State of North Carolina Post Office Box 629 Raleigh, North Carolina 27602 Public Service Commission State of South Carolina Post Office Drawer 11649 Columbia, South Carolina 29211 Ms. Beverly Hall, Section Chief Division of Radiation Protection N.C. Department of Environment and Natural Resources 3825 Barrett Drive Raleigh, North Carolina 27609-7721 Mr. J. Paul Fulford Manager, Performance Evaluation and Regulatory Affairs PEB 5 Carolina Power & Light Company Post Office Box 1551 Raleigh, North Carolina 27602-1551 Mr. Eric McCartney Plant General Manager Shearon Harris Nuclear Power Plant Carolina Power & Light Company P. O. Box 165, Mail Zone 3 New Hill, North Carolina 27562-0165 Mr. Chris L. Burton Director of Site Operations Shearon Harris Nuclear Power Plant Carolina Power & Light Company Post Office Box 165, Mail Zone 1 New Hill, North Carolina 27562-0165 Mr. Robert P. Gruber Executive Director Public Staff NCUC 4326 Mail Service Center Raleigh, North Carolina 27699-4326 Chairman of the North Carolina Utilities Commission Post Office Box 29510 Raleigh, North Carolina 27626-0510 Mr. Tony Gurley, Chair Board of County Commissioners of Wake County P. O. Box 550 Raleigh, North Carolina 27602 Mr. Tommy Emerson, Chair Board of County Commissioners of Chatham County P. O. Box 87 Pittsboro, North Carolina 27312 Mr. Thomas J. Natale, Manager Support Services Shearon Harris Nuclear Power Plant Carolina Power & Light Company P. O. Box 165, Mail Zone 1 New Hill, North Carolina 27562-0165 Mr. David H. Corlett, Supervisor Licensing/Regulatory Programs Shearon Harris Nuclear Power Plant Carolina Power & Light Company P. O. Box 165, Mail Zone 1 New Hill, NC 27562-0165 Mr. John H. ONeill, Jr.
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