ML20205S032

Forwards SER Accepting Util 980804 Requests for Relief from Certain Requirements of Subsections IWE & Iwl of 1992 Addenda of ASME Section Xi.Alternatives for IWE2,IWE4,IWE6 & IWL2,authorized Pursuant to 10CFR50.55a(a)(3)(ii)

ML20205S032
Person / Time
Site:	North Anna
Issue date:	04/21/1999
From:	Emch R NRC (Affiliation Not Assigned)
To:	Ohanlon J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
Shared Package
ML20205S038	List: ML20205S032 ML20205S039
References
TAC-MA2476, TAC-MA2477, NUDOCS 9904260061
Download: ML20205S032 (4)

Text

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NUCLEAR REGULATORY COMMISSION gg%P

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l Mr. J. P. O'Hanlon Senior Vice President - Nuclear Virginia Electric and Power Company 5000 Dominion Blvd.

l Glen Allen, Virginia 23060

SUBJECT:

NORTH ANNA POWER STATION, UNIT 1 AND UNIT 2 - ASME SECTION XI RELIEF REQUESTS -IWE2, IWE4 THROUGH IWE6 AND IWL2 (TAC NOS, MA2476 AND MA2477) 1

Dear Mr. O'Hanlon:

By your letter dated August 4,1998, you submitted requests for relief from certain requirements of Subsections IWE and IWL of the 1992 Addenda of ASME Section XI. lWE2 requested relief from performing the Code-required visual examination, VT-3, on metal containment seals and gaskets of Class MC pressure-retaining components. lWE4 requested relief from the requirements of Paragraphs IWE-2420(b) and IWE-2420(c) to perform successive examination of repairs. lWE5 requested relief from ASME Section XI,1992 Edition with the 1992 Addenda, Table IWE-2500-1, Examination Category E-G, Pressure Retaining Bolting, Item 8.20. IWE6 requested relief from using one-foot square grids for augmented examination areas and the requirement to determine the minimum wall thickness within each grid. iWL2 requested relief J

from the provisions of Table IWA-2210-1 for components subject to examination in accordance with Subsection IWL of the 1992 Edition,1992 Addenda of ASME Section XI. Relief requests IWE2, IWE4 through IWE6 and IWL2 are applicable to Unit 1 and Unit 2. Relief request IWE3 for Unit 1, which was included in your letter dated August 8,1998, was withdrawn by your letter dated April 5,1999. The conclusions and recommendations from Idaho National Engineering and Environmental Laboratory, which assisted the staff in preparing the safety evaluation, includes the evaluation of IWE3, but the NRC staff safety evaluation does not include IWE3 evaluation since the request was subsequently withdrawn.

The staff finds the alternative stated for each relief request to be acceptable. The proposed alternatives for IWE2, IWE4, IWE6 and IWL2 are authorized pursuant to 10 CFR 50.55a(a)(3(ii) because compliance with the requirements would result in hardship or unusual difficulty without a compensating increase in the level of quality and safety. The proposed alternative for IWE5 is authorized pursuant to 10 CFR 50.55a(a)(3(i) since it provides an acceptable level of quality and safety. The granting of the reliefs is authorized by law, will not endanger life or property or the common defense and security, and is otherwise in the public interest giving due consideration to if /

the burden upon Virginia Electric and Power Company that could result if the requirements were f

l imposed on the facility.

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2-The staff's evaluation and conclusions are contained in the Enclosure.

The staff has completed its evaluation of the relief request; therefore, we are closing out TAC Nos. MA2476 and MA 2477.

Sincerely, Richard L. Emch Jr., Chief, Section 1 Project Directorate 11 Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-338 and 50-339

Enclosure:

As stated cc w/ encl.: See next page l

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. April 21, 1999 The staff's evaluation and conclusions are contained in the Enclosure.

The staff has completed its evaluation of the relief request; therefore, we are closing out TAC Nos. MA2476 and MA 2477.

Sincerely, Original signed by:

Richard L. Emch Jr., Chief, Section 1 Project Directorate ll Division of Licensing Project Management Office of Nuclear Reactor Regulation i

Docket Nos. 50-338 and 50-339

Enclosure:

As stated

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cc w/ encl.: See next page Distribution:

Docket File ?

PUBLIC PDil RF ACRS J. Zwolinski/S. Black OGC CNorsworthy (Email-SE)

Hansraj Ashar A. Porter (INEEL)

M. Anderson (INEEL)

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Mr. J. P. O'Hanlon North Anna Power Station Virginia Electric & Power Company Units 1 and 2 cc:

Mr. J. Jeffrey Lunsford Mr. W. R. Matthews 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 Mr. Donald P. Irwin, Esquire Mr. E. S. Grecheck Hunton and Williams Site Vice President Riverfront Plaza, East Tower Surry Power Station 951 E. Byrd Street Virginia Electric and Power Company Richmond, Virginia 23219 5570 Hog Island Road Surry, Virginia 23883 Dr. W. T. Lough Virginia State Corporation Robert B. Strobe, M.D., M.P.H.

Commission State Health Commissioner Division of Energy Regulation Office of the Commissioner P. O. Box 1197 Virginia Department of Health Richmond, Virginia 23209 P.O. Box 2448 Richmond, Virginia 23218 Old Dominion Electric Cooperative 4201 Dominion Blvd.

Glen Allen, Virginia 23060 Mr. J. H. McCarthy, Manager Nuclear Licensing & Operations Support i

Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Blvd.

Glen Allen, Virginia 23060 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