ML15218A135
| ML15218A135 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 05/30/1995 |
| From: | Berkow H NRC (Affiliation Not Assigned) |
| To: | Hampton J DUKE POWER CO. |
| Shared Package | |
| ML15218A136 | List: |
| References | |
| TAC-M91172, NUDOCS 9506080548 | |
| Download: ML15218A135 (4) | |
Text
pf UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 30, 1995 Mr. J. W. Hampton Vice President, Oconee Site Duke Power Company P. 0. Box 1439 Seneca, SC 29679
SUBJECT:
OCONEE NUCLEAR STATION, UNIT 3 - SECOND 10-YEAR INSERVICE INSPECTION (ISI) INTERVAL REQUEST FOR RELIEF NO. 94-05 (TAC NO. M91172)
Dear Mr. Hampton:
By letter dated July 20, 1994, you submitted Request for Relief No. 94-05 from ASME Code requirements to perform ultrasonic examinations of 90% or more of the threads in the reactor vessel flange at Oconee Nuclear Station, Unit 3, during the second 10-year ISI interval.
With the examination technique then in use, an inspection coverage of only 78% was achieved during the second ISI interval.
It was later determined that coverage could be increased to the required 90% or more with the use of supplemental techniques. The relief request is to defer the complete re-examination of the threads in the reactor vessel flange with the supplemental techniques to the next available Unit 3 outage, which falls in the first period of the third 10-year ISI interval.
The NRC staff has completed its review of your submittal. Our evaluation and conclusions are contained in the attached Safety Evaluation.
The NRC staff has determined that it would be impractical without a compensating increase in the level of quality and safety to require a shutdown of Oconee Unit 3 during the second interval in order to meet the inspection coverage requirements of the Code using the supplemental examination techniques. The proposed complete examination during the first period of the third 10-year ISI interval would provide an acceptable level of quality and safety. Therefore, relief is granted from the required coverage of the reactor head bolt hole examination during the second 10-year ISI interval.
However, during the first period of the third and subsequent 10-year ISI intervals, the Code-required 10-year inservice inspections will be performed.
9506080548 950530 m c F CENTER PDR ADOCK 05000287 G
,PDR
0S Mr. J. W. Hampton
-2 The staff has concluded that the use of your proposed alternate inspection schedule will provide reasonable assurance of operational readiness, and is authorized pursuant to 10 CFR 50.55a(a)(3)(ii).
Sincerely, Original signed by:
Herbert N. Berkow, Director Project Directorate 11-2 Division of Reactor Projects-I/II Office of Nuclear Reactor Regulation Docket No. 50-287
Enclosure:
Safety Evaluation cc w/encl: See next page DISTRIBUTION Docket Filel)
PUBLIC PD#22 Reading File W. Russell/F. Miraglia R. Zimmerman R. Spessard J. Lieberman S. Varga J. Zwolinski OGC F. Jnrdan G. Hill (2)
ACRS (4)
OPA OC/LFDCB G. Tracy R. Crlenjak, RH E. Merschoff, RH DOCUMENT NAME:
G:\\OCONEE\\RR9405 To receive a copy of this docgment, Indicate in the box: "C" = Copy without attachment/enclosure "E" = Copy ttachment/enclosure "N" =
c0 OFFICE LA:PD22:D E
PE:
24 P PM:PD22:DRtPE OGC A
D:PD NAME ILBerry S'WrJ sIs Pal--
L (Wiens/V/
HB
-Ba DATE 4/
/95 4/4,1 /95 4/a-
/95
,Qt-
/95
[
//95 OFFICIAL RECORD COPY
Mr. J. W. Hampton
-2 The staff has concluded that the use of your proposed alternate inspection schedule will provide reasonable assurance of operational readiness, and is authorized pursuant to 10 CFR 50.55a(a)(3)(ii).
Sincerely, He rt N. Berkow Director Project Directorate 11-2 Division of Reactor Projects-I/Il Office of Nuclear Reactor Regulation Docket No. 50-287
Enclosure:
Safety Evaluation cc w/encl:
See next page
Mr. J. W. Hampton Duke Power Company Oconee Nuclear Station cc:
A. V. Carr, Esquire Mr. Ed Burchfield Duke Power Company Compliance 422 South Church Street Duke Power Company Charlotte, North Carolina 28242-0001 Oconee Nuclear Site P. 0. Box 1439 J. Michael McGarry, III, Esquire Seneca, South Carolina 29679 Winston and Strawn 1400 L Street, NW.
Ms. Karen E. Long Washington, DC 20005 Assistant Attorney General North Carolina Department of Mr. Robert B. Borsum Justice B&W Nuclear Technologies P. 0. Box 629 Suite 525 Raleigh, North Carolina 27602 1700 Rockville Pike Rockville, Maryland 20852-1631 Mr. G. A. Copp Licensing -
EC050 Manager, LIS Duke Power Company NUS Corporation 526 South Church Street 2650 McCormick Drive, 3rd Floor Charlotte, North Carolina 28242-0001 Clearwater, Florida 34619-1035 Dayne H. Brown, Director Senior Resident Inspector Division of Radiation Protection U. S. Nuclear Regulatory Commission North Carolina Department of Route 2, Box 610 Environment, Health and Seneca, South Carolina 29678 Natural Resources P. 0. Box 27687 Regional Administrator, Region II Raleigh, North Carolina 27611-7687 U. S. Nuclear Regulatory Commission 101 Marietta Street, NW. Suite 2900 Atlanta, Georgu 30323 Max Batavia, Chief Bureau of Radiological Health South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201 County Supervisor of Oconee County Walhalla, South Carolina 29621