ML031150679

Requested Correction to Safety Evaluation for Relief Request SPT-007

ML031150679
Person / Time
Site:	North Anna
Issue date:	04/25/2003
From:	Stephen Monarque NRC/NRR/DLPM/LPD2
To:	Christian D Virginia Electric & Power Co (VEPCO)
Monarque S, NRR/DLPM, 415-1544
References
TAC MB2280
Download: ML031150679 (7)

Text

April 25, 2003 Mr. David A. Christian Senior Vice President - Nuclear Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Blvd.

Glen Allen, Virginia 23060

SUBJECT:

NORTH ANNA POWER STATION, UNIT 2 - REQUESTED CORRECTION TO SAFETY EVALUATION FOR RELIEF REQUEST SPT-007 (TAC NO. MB2280)

Dear Mr. Christian:

By letter dated June 12, 2002, the NRC staff granted Virginia Electric and Power Companys (VEPCOs) relief request SPT-007 for the third 10-year inservice inspection interval at North Anna Power Station, Unit 2.

VEPCO has informed the NRC staff that an incorrect valve position is stated for Relief Request SPT-007 in the enclosed Safety Evaluation (SE). The SE has been revised to show that the VT-2 visual examination may be performed while the subject valves are in the closed position.

A copy of the revised page 2 of the SE with the change noted by a vertical line in the margin is enclosed and should replace the previous version. This inaccuracy does not change our conclusion in the subject SE.

The thoroughness of your staff in identifying this inaccuracy is appreciated and is an important contribution in ensuring the accuracy of the SEs that form the bases for approval of licensing actions. If you or your staff have any comments concerning the resolution of this matter, please contact me at (301) 415-1544.

Sincerely,

/RA/

Stephen R. Monarque, Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-339

Enclosure:

As stated cc w/encl: See next page

April 25, 2003 Mr. David A. Christian Senior Vice President - Nuclear Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Blvd.

Glen Allen, Virginia 23060

SUBJECT:

NORTH ANNA POWER STATION, UNIT 2 - REQUESTED CORRECTION TO SAFETY EVALUATION FOR RELIEF REQUEST SPT-007 (TAC NO. MB2280)

Dear Mr. Christian:

By letter dated June 12, 2002, the NRC staff granted Virginia Electric and Power Companys (VEPCOs) relief request SPT-007 for the third 10-year inservice inspection interval at North Anna Power Station, Unit 2.

VEPCO has informed the NRC staff that an incorrect valve position is stated for Relief Request SPT-007 in the enclosed Safety Evaluation (SE). The SE has been revised to show that the VT-2 visual examination may be performed while the subject valves are in the closed position.

A copy of the revised page 2 of the SE with the change noted by a vertical line in the margin is enclosed and should replace the previous version. This inaccuracy does not change our conclusion in the subject SE.

The thoroughness of your staff in identifying this inaccuracy is appreciated and is an important contribution in ensuring the accuracy of the SEs that form the bases for approval of licensing actions. If you or your staff have any comments concerning the resolution of this matter, please contact me at (301) 415-1544.

Sincerely,

/RA/

Stephen R. Monarque, Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-339

Enclosure:

As stated cc w/encl: See next page Distribution TChan RidsNrrPMSMonarque PUBLIC RidsNrrDlpmLpdii RidsNrrLAEDunnington PDII-1 R/F RidsOgcRp RidsAcrsAcnwMailCenter G. Hill (2)

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• See previous concurrence Accession Number: ML031150679 OFFICE PDII-1/PM PDII-2/LA EMCB:SC* PDII-1/SC NAME SMonarque EDunnington TChan LOlshan for JNakoski DATE 04/25/2003 04/25/2003 04/23/2003 04/25/2003 OFFICIAL RECORD COPY

and SPT-007 for the third 10-year interval for North Anna Power Station, Unit 2, provided in Virginia Electric and Power Company (the licensee) letter dated June 13, 2001.

The licensee provided additional information in its letter dated January 31, 2002. In its letter dated January 31, 2002, the licensee also withdrew Request for Relief Nos. NDE-012 and NDE-015. lists each relief request and the status of approval. The staff adopts the evaluations and recommendations for authorizing alternatives and granting relief contained in the Technical Letter Report (TLR), included as Attachment 2, prepared by BNL.

For Request for Relief Nos. NDE-001, NDE-002, NDE-003, and NDE-007, the staff determined that the inaccessibility of the subject welds makes the Code-required examinations impractical to perform. For complete examination coverage of the welds, redesign and modification of the subject components would be an unnecessary burden on the licensee. Furthermore, the licensees proposed alternatives provide reasonable assurance of structural integrity of the subject components in the licensees requests for relief.

For Request for Relief No. NDE-005, the licensees proposed alternative in lieu of the Code-required weld reference system provides an acceptable level of quality and safety.

For Request for Relief Nos. NDE-006, NDE-010, NDE-013, and SPT-006, the licensees proposed alternatives to use Code Cases N-623, N-532, N-598, and N-533-1, respectively, provide an acceptable level of quality and safety.

For Request for Relief No. SPT-007, the licensees proposed alternative to perform a VT-2 visual examination while the subject valves remain closed provides an acceptable level of quality and l safety.

For Request for Relief Nos. SPT-002 and SPT-005, compliance with the Code requirements would result in a hardship or unusual difficulty without a compensating increase in the level of quality and safety. Furthermore, the licensees proposed alternatives contained in the subject reliefs provide reasonable assurance of structural integrity of the subject components in the licensees requests for relief.

3.0 CONCLUSION

The North Anna Power Station, Unit 2, Request for Relief Nos. NDE-001, NDE-002, NDE-003, NDE-005, NDE-006, NDE-007, NDE-010, NDE-013, SPT-002, SPT-005, SPT-006, and SPT-007 to the Code requirements have been reviewed by the staff with the assistance of its contractor, BNL. The TLR provides BNLs evaluation of these requests for relief. The staff has reviewed the TLR and adopts the evaluations and recommendations for granting relief.

For Request for Relief Nos. NDE-001, NDE-002, NDE-003, and NDE-007, the staff concludes that the Code requirements are impractical and if imposed would result in burden on the licensee.

Furthermore, the licensees proposed alternatives provide reasonable assurance of structural integrity of the subject components contained in the licensees requests for relief. Therefore, the licensees requests for relief are granted pursuant to 10 CFR 50.55a(g)(6)(i) for the third 10-year ISI interval.

Mr. David A. Christian North Anna Power Station Virginia Electric and Power Company Units 1 and 2 cc:

Mr. C. Lee Lintecum Mr. David A. Heacock County Administrator Site Vice President Louisa County North Anna Power Station P. O. Box 160 P. O. Box 402 Louisa, Virginia 23093 Mineral, Virginia 23117-0402 Ms. Lillian M. Cuoco, Esq. Mr. Richard H. Blount, II Senior Counsel Site Vice President Dominion Resources Services, Inc. Surry Power Station Millstone Power Station Virginia Electric and Power Company Building 475, 5 th floor 5570 Hog Island Road Rope Ferry Road Surry, Virginia 23883-0315 Rt. 156 Waterford, Connecticut 06385 Mr. Robert B. Strobe, M.D., M.P.H.

State Health Commissioner Dr. W. T. Lough Office of the Commissioner Virginia State Corporation Virginia Department of Health Commission P. O. Box 2448 Division of Energy Regulation Richmond, Virginia 23218 P. O. Box 1197 Richmond, Virginia 23209 Mr. William R. Matthews Vice President-Nuclear Operations Old Dominion Electric Cooperative Virginia Electric and Power Company 4201 Dominion Blvd. Innsbrook Technical Center Glen Allen, Virginia 23060 5000 Dominion Boulevard Glen Allen, Virginia 23060-6711 Mr. Chris L. Funderburk, Director Nuclear Licensing & Operations Support Virginia Electric Power Company Innsbrook Technical Center 5000 Dominion Blvd.

Glen Allen, Virginia 23060-6711 Office of the Attorney General Commonwealth of Virginia 900 East Main Street Richmond, Virginia 23219 Senior Resident Inspector North Anna Power Station U. S. Nuclear Regulatory Commission 1024 Haley Drive Mineral, Virginia 23117