ML030420407

Units 1 and 2, Proposed TS Amendments TS 5.5.2 (Containment Leakage Rate Testing Program). One Time Extension of Integrated Leak Rate Testing Interval

ML030420407
Person / Time
Site:	Mcguire, Catawba, McGuire
Issue date:	01/29/2003
From:	Tuckman M Duke Power Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML030420407 (8)

Text

IkDuke Duke Energy Corporation WPower. 526 South Church Street PO Box 1006 A Duke Energy Company Charlotte, NC 28201-1006 (704) 382-2200 OFFICE (704) 382-4360 FAX Michael S. Tuckman Executive Vice President Nuclear Generation January 29, 2003 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555

Subject:

Duke Energy Corporation Catawba Nuclear Station, Units 1 and 2 Docket Numbers 50-413 and 50-414 McGuire Nuclear Station, Units 1 and 2 Docket Numbers 50-369 and 50-370 Proposed Technical Specifications (TS) Amendments Technical Specification 5.5.2 (Containment Leakage Rate Testing Program)

One-Time Extension of Integrated Leak Rate Testing (ILRT) Interval

References:

Letters from Duke Energy Corporation to NRC, same subject, dated May 29, 2002, September 25, 2002, November 12, 2002, and January 8, 2003 Pursuant to 10 CFR 50.4 and 10 CFR 50.91, the enclosed information is being provided to NRC regarding the reference submittal. NRC had inquired as to the dates of the last ASME Section XI containment visual examinations for the Catawba and McGuire units, as well as the dates for the next scheduled examinations.

ASME Boiler and Pressure Vessel Code,Section XI (1992 Edition with the 1992 Addenda), Table IWE-2500-1, Item E1.11 examinations were completed and are tentatively scheduled as indicated in Table 1 below:

'/

U.S. Nuclear Regulatory Commission Page 2 January 29, 2003 Table 1 Containment Visual Examinations for Catawba and McGuire Unit Last Examination Next Scheduled Examination (Tentative)

Catawba Unit 1 November 2000 November 2003 (End of Cycle 12) (End of Cycle 14)

Catawba Unit 2 October 1998 September 2004 (End of Cycle 9) (End of Cycle 13)

McGuire Unit 1 November 1999 March 2004 (End of Cycle 13) (End of Cycle 16)

McGuire Unit 2 September 2000 September 2003 (End of Cycle 13) (End of Cycle 15)

Please note that the scheduled examination dates are tentative and are subject to change according to allowances by the ASME Code.

Also, in our letter dated January 8, 2003, a small numerical error was discovered in Table 19 for the 1 Test in 15 Years case for McGuire (the error was in the "LERF" and the "Increase Relative to Base" columns). This error did not result in any changes to the conclusions of the analysis.

The corrected page is contained in the attachment. Please replace the page previously transmitted via our January 8, 2003 letter with the one attached.

The original conclusions of the No Significant Hazards Consideration Analysis and the Environmental Analysis as delineated in our original submittal are unchanged as a result of this amendment request supplement.

Pursuant to 10 CFR 50.91, copies of this letter are being sent to the appropriate state officials.

There are no regulatory commitments contained in this letter or its attachment.

U.S. Nuclear Regulatory Commission Page 3 January 29, 2003 Inquiries on this matter should be directed to L.J. Rudy at (803) 831-3084.

Very truly yours, M.S. Tuckman LJR/s Attachment

U.S. Nuclear Regulatory Commission Page 4 January 29, 2003 M.S. Tuckman affirms that he is the person who subscribed his name to the foregoing statement, and that all the matters and facts set forth herein are true and correct to the best of his knowledge.

M.S. Tuckman, Executive Vice President Subscribed and sworn to me:

Date Notary Pub c My commission expires:

Date SEAL

U.S. Nuclear Regulatory Commission Page 5 January 29, 2003 xc (with attachment):

L.A. Reyes U.S. Nuclear Regulatory Commission Regional Administrator, Region II Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, GA 30303 E.F. Guthrie Senior Resident Inspector (CNS)

U.S. Nuclear Regulatory Commission Catawba Nuclear Station S.M. Shaeffer Senior Resident Inspector (MNS)

U.S. Nuclear Regulatory Commission McGuire Nuclear Station R.E. Martin (addressee only)

NRC Senior Project Manager (CNSIMNS)

U.S. Nuclear Regulatory Commission Mail Stop 08-H12 Washington, D.C. 20555-0001 H. Porter, Director Division of Radioactive Waste Management Bureau of Land and Waste Management Department of Health and Environmental Control 2600 Bull St.

Columbia, SC 29201 B.O. Hall, Director Division of Radiation Protection 3825 Barrett Drive Raleigh, NC 27609-7221

I U.S. Nuclear Regulatory Commission Page 6 January 29, 2003 bxc (with attachment):

G.D. Gilbert L.J. Rudy K.E. Nicholson C.J. Thomas K.L. Crane L.B. Jones D.J. Goforth M.J. Ferlisi B.C. Carroll NCMPA-1 NCEMC PMPA SREC Catawba Document Control File 801.01 McGuire Document Control File Catawba RGC Date File ELL-EC050

ATTACHMENT REVISED PAGE FROM JANUARY 8, 2003 RESPONSE TO NRC REQUEST FOR ADDITIONAL INFORMATION

Table 18 LERF (All Events) Associated with Corrosion Events for Catawba Test Interval Corrosion Non-LERF LERF Increase Increase Failure CDF Relative to Relative to Probability Base Current 3 Test in 10 2.99E-06 5.25E-05/yr 1.57E-10 Years 1 Test in 10 1.74E-05 5.25E-05/yr 9.13E-10 7.56E-10 Years 1 Test in 15 4.05E-05 5.25E-05/yr 2.13E-09 1.97E-09 1.22E-09 Years Table 19 LERF (Internal Events) Associated with Corrosion Events for McGuire Test Interval Corrosion Non-LERF LERF Increase Increase Failure CDF Relative to Relative to Probability Base Current 3 Test in 10 2.99E-06 2.71E-05/yr 8.11E-11 Years 1 Test in 10 1.74E-05 2.71E-05/yr 4.71E-10 3.90E-10 Years 1 Test in 15 4.05E-05 2.71E-05/yr 1.1OE-09 1.02E-09 6.27E-10 Years I I I Table 20 LERF (All Events) Associated with Corrosion Events for McGuire Test Interval Corrosion Non-LERF LERF Increase Increase Failure CDF Relative to Relative to Probability Base Current 3 Test in 10 2.99E-06 4.48E-05/yr 1.34E-10 Years 1 Test in 10 1.74E-05 4.48E-05/yr 7.79E-10 6.45E-09 Years 1 Test in 15 4.05E-05 4.48E-05/yr 1.82E-09 1.68E-09 1.04E-09 Years I The increase in LERF associated with corrosion events is estimated to be less than iE-07/yr.

3.4 Discussion of Results The results of this analysis for LERF (Class 3b) are lower than originally estimated by DEC. This result is consistent with our original conclusion that the increase in LERF as a result of the ILRT extension is small and acceptable.

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