ML20217E174
| ML20217E174 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 09/24/1997 |
| From: | Edison G NRC (Affiliation Not Assigned) |
| To: | Ohanlon J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| Shared Package | |
| ML20217E179 | List: |
| References | |
| GL-90-05, GL-90-5, TAC-M98408, TAC-M98409, NUDOCS 9710060368 | |
| Download: ML20217E174 (3) | |
Text
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%,t e g UNITED STATES g
j NUCLEAR REGULATORY COMMISSION o
WASHINGTON D.C. 30044-0001
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September 24, 1997 l
Mr. J. P. O'Hanlon Senior Vice President - Nuclear Virginia Electric and Power Company 5000 Dominion Blvd.
Glen Allen. Virginia 23060
SUBJECT:
NORTH ANNA POWER STATION UNITS 1 AND 2 - ASME SECTION XI RELIEF REQUEST NDE-34 AND NDE SERVICE WATER SYSTEM (SWS) LEAKS (TAC NOS. M98408 AND M98409)
Dear Mr. O'Hanlon:
Tha NRC staff has evaluated the information provided in your March 19, 1997, submittal related to the inservice inspection program relief request NDE-34 and NDE-36.
Based on the evaluation of relief request NDE-34 and NDE-36, it is concluded the repair would have necessitated removing portions of the SWS that are otherwise structurally sound and capable of performing their intended safety function. This would have unnecessarily reduced the margin of safety of the SWS. Therefore, the immediate Code repair during the period February 10.
1997, through March 18, 1997, would have constituted an undue burden on Virginia Electric and Power Company (VEPC0).
Your alternative program for this period included evaluation of the flaws which is consistent with the cuidelines and acceptance criteria of Generic Letter 90-05. The staff finds the structural integrity and operability assessments to be acceptable.
You have stated that during the period of February 10, 1997, through March 18, 1997, the welds were monitored by plant
>ersonnel and all the flaws were repaired by March 18. 1997.
In addition, you lad evaluated-the defective areas and determined that the flaws were acceptable and the SWS was determined to be operable.
While the impracticality of the Code requirements was not shown. the staff finds that relief may be granted pursuant to 10 CFR 50.55a(a)(3)(11). The staff's evaluation and conclusions are contained in the Enclosure.
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The staff has completed its evaluation of this matter and we are, therefore.
closing out TAC Nos M98408 and M98409.
Sincerely.
(Original Signed Dy)
Goron E. Edison, Acting Director Project Directorate 11-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos. 50-:.138 and 50-339
Enclosure:
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i Mr. J. P. O'Hanlon North Anna Power Station Virginia Electric & Power Company Units 1-and 2 cc:
Mr. J._Jeffrey Lunsford County Administrator-Regional Administrator. Region II Louisa County U.S. Nuclear Regulatory Commission P.O. Box 160 Atlanta Federal Center Louisa. Virginia 23093-61 Forsyth St. SW. Suite 23T85 4
Atlanta, Georgia -30303 Michael W. Maupin. Esquire Hunton and Williams Mr. W. R. Matthews Manager Riverfront Plaza. East Tower North Anna Power Station 951 E. Byrd Street-P. O. Box 402 Richmond, Virginia 23219 Mineral. Virginia 23117
'Dr.'W. T. Lough Mr. Al Belisle.
4-Virginia State Corporation U.S. Nuclear Regulatory Commission Commission Atlanta Federal Center Division of Energy Regulation 61 Forsyth St. SW. Suite 23T85 i
P. O. Box 1197 Atlanta, Georgia 30303 R1chmond.' Virginia 23209 Mr. David Christian. Manager
-Old Dominion Electric Cooperative Surry Power Station 4201 Dominion Blvd.
Virginia Electric and Power Company
. Glen Allen. Virginia 23060 5570 Hog Island Road SL:rry, Virginia 23883 Mr. J. H. McCarthy. Manager F
Nuclear Licensing & Operations Support
. Virginia Electric and Power Company 4
Innsbrook Technical Center 5000 Dominion B1vd.
Glen-Allen. Virginia 23060
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.0ffice 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 s
Mineral. Virginia 23117 Robert B. Strobe M.D., M;P.H.
State Health Commissioner Office of the Commissioner Virginia Department of Health P.O. Box 2448 Richmond, Virginia'23218