ML18012A331

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Discusses Closeout of Util Response to GL 92-01,rev 1,suppl 1, Reactor Vessel Structural Integrity. NRC Reviewed Response & Requests Results of Owners Groups Activities Re Ppv Integrity Programs
ML18012A331
Person / Time
Site: Harris 
Issue date: 08/07/1996
From: Le N
NRC (Affiliation Not Assigned)
To: Robinson W
CAROLINA POWER & LIGHT CO.
References
GL-92-01, GL-92-1, TAC-M92682, NUDOCS 9608130284
Download: ML18012A331 (4)


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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTONo D.C. 205554001 August 7, 1996 Mr. W. R. Robinson, Vice President Shearon Harris Nuclear Power Plant Carolina Power 8 Light Company Post Office Box 165 Mail Code:

Zone 1

New Hill, North Carolina 27562-0165

SUBJECT:

RESPONSE

TO GENERIC LETTER 92-01, REVISION 1, SUPPLEMENT 1

SHEARON HARRIS NUCLEAR POWER PLANT, UNIT 1 (TAC NO. M92682)

Dear Mr. Robinson:

On May 19, 1995, the NRC issued Generic Letter (GL) 92-01, Revision 1,

Supplement 1

(GL 92-01, Rev.

1, Supp.

1), "Reactor Vessel Structural Integrity."

In GL 92-01, Rev.

1, Supp.

1, the NRC requested that nuclear licensees perform a review of their reactor pressure vessel structural integrity assessments in order "to identify, collect, and report any new data pertinent to analysis of structural integrity of their reactor pressure vessels (RPVs) and to assess the impact of that data on their RPV integrity analyses relative to the requirements of Section 50.60 of Title 10 of the Code of Federal Regulations (10 CFR 50.60),

10 CFR 50.61, Appendices G and H to 10 CFR Part 50 (which encompass pressurized thermal shock (PTS) and upper shelf energy (USE) evaluations),

and any potential impact on low temperature overpressure (LTOP) limits or pressure-temperature (P-T) limits."

More specifically, in GL 92-01, Rev.

1, Supp.

1, the NRC requested that addressees pro~vide the following information in their responses:

(1) a des4iption of those actions taken or planned to locate all data relevant to the determination of RPV integrity, or an explanation of why the existing database is considered complete as previously submitted; (2) an assessment of any change in best-estimate chemistry based on consideration of all relevant data; (3) a determination of the need for the use of the ratio procedure in accordance with the established Position 2. 1 of Regulatory Guide (RG) 1.99, Revision 2, for those licensees that use surveillance data to provide a basis for the RPV integrity evaluation; and (4) a written report providing any newly acquired data as specified above and (1) the results of any necessary revisions to the evaluations of RPV integrity in accordance with the requirements of 10 CFR 50.60, 10 CFR 50.61, Appendices G and H to 10 CFR Part 50, and any potential impact on the LTOP and P-T limits in the technical specifications, or (2) a certification that previously submitted evaluations remain valid.

Revised evaluations and certifications were to include consideration of Position 2. 1 of RG 1.99, Revision 2, as applicable, and any new data.

The 9608i30284 9h0807 PDR ADOCK'05000400 P

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W.

R. Robinson information in Reporting Item (1) was to be submitted within 90 days of the issuance of the GL.

The information in Reporting Items (2) (4) was to be submitted within 6 months of the issuance of the GL.

The staff has reviewed your responses to the information requested in Reporting Item (1) on August 17,

1995, and requested in Reporting Items (2)

(4) on November 16, 1995.

Your responses have provided new RPV data to the staff or have revised the RPV Data Sheets for the Shearon Harris Nuclear Power Plant (SHNPP).

However, you have indicated in your submittal to GL 92-01, Revision 1, Supplement 1, that the revised data does not impact the LTOP and P-T Limits defined in the SHNPP Technical Specifications or compliance with the PTS and USE regulations (10 CFR 50.61 and 10 CFR Part 50, Appendices G and H, respectively).

You had therefore indicated that the previously submitted evaluations for the SHNPP remain valid.

Since you have provided the requested information, the staff is closing out TAC No. H92682 in regard to the SHNPP.

However, the staff will review the new RPV data at a later date.

Furthermore, the staff has also noted that the Owners Groups'eactor Vessel Working Groups activities to establish a

comprehensive RPV information database could yield additional data relevant to your plant.

These activities are expected to be completed by the summer of 1997.

The staff plans to review the revised RPV data and any additional data that are to be provided as a result of the Owners Groups'ctivities, and thus you are requested to provide the staff with the results of the ongoing Owners Groups'PV integrity programs relative to the SHNPP.

Thank you for your cooperation.

Sincerely, (Original Signed By)

Ngoc B. Le, Project Manager Project Directorate II-1 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation Docket No. 50-400 cc:

See next page Distribution

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~ee LPH memo (dated 7/12/96) to all DRPE and DRPW PDs

Mr. W. R. Robinson Carolina Power

& Light Company Shearon Harris Nuclear Power Plant Unit 1

CC:

Mr. William D. Johnson Vice President and Senior Counsel Carolina Power

& Light Company Post Office Box 1551

Raleigh, North Carolina 27602 Resident Inspector/Harris NPS c/o U.S. Nuclear Regulatory Commission 5421 Shearon Harris Road New Hill, North Carolina 27562-9998 Ms. Karen E.

Long 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 Regional Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta St.,

N.W. Suite 2900 Atlanta, Georgia 30323 Mr. Dayne H. Brown, Director Division of Radiation Protection N.C. Department of Environmental Division of Radiation Protection Commerce

& Natural Resources Post Office Box 27687

Raleigh, North Carolina 27611-7687 Mr. J.

Cowan Manager Nuclear Services and Environmental Support Department Carolina Power

& Light Company Post Office Box 1551 - Mail OHS7 Raleigh, North Carolina 27602 Mr. Bo Clark Plant General Manager - Harris Plant Carolina Power

& Light Company Shearon Harris Nuclear Power Plant P.O.

Box 165 New Hill, North Carolina 27562-0165 Mr. J.

W. Donahue Director of Site Operations Carolina Power

& Light Company Shearon Harris Nuclear Power Plant Post Office Box 165, MC: Zone 1

New Hill, North Carolina 27562-0165 Mr. Robert P. Gruber Executive Director Public Staff NCUC Post Office Box.29520

Raleigh, North Carolina 27626 Chairman of the North Carolina Utilities Commission Post Office Box 29510 Raleigh, North Carolina 27626-0510 Mr. T.

D. Walt

Manager, Regulatory Affairs Carolina Power

& Light Company Shearon Harris Nuclear Power Plant P. 0.

Box 165, Mail Zone 1

New Hi 1 l, North Carol ina 27562-0165 Mr. Vernon Malone, Chairman Board of County Commissioners of Wake County P. 0.

Box 550

Raleigh, North Carolina 27602 Ms.

Uva Holland, Chairman Board of County Commissioners of Chatham County P. 0.

Box 87 Pittsboro, North Carolina 27312 Mr. Milton Shymlock U.S. Nuclear Regulatory Comm.

101 Marietta Street, N.W.

Suite 2900 Atlanta, Georgia 30323-0199