ML20151T312
| ML20151T312 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 08/10/1988 |
| From: | Fairtile M Office of Nuclear Reactor Regulation |
| To: | Papanic G YANKEE ATOMIC ELECTRIC CO. |
| Shared Package | |
| ML20151T316 | List: |
| References | |
| TAC-66893, NUDOCS 8808160314 | |
| Download: ML20151T312 (2) | |
Text
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August 10, 1988 Docket No.50-029 Mr. George Papanic, Jr.
Senior Project Engineer - Licensing Yankee Atomic Electric Company 1671 Worcester Road Framingham, Massachusetts 01701
Dear Mr. Papanic:
I
SUBJECT:
SEISMIC REANALYSIS OF THE YANXEE NUCLEAR POWER STATION (TAC N0d6893)
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Our safety evaluation of July 16, 1987, as clarified by our letter dated March 21, 1988, in regard to Systematic Evaluation Program Topic III.6, Seismic i
Design Considerations, offered alternate design criteria in regard <to the seismic reanalysis and installation of safe shutdown piping supports at the Yankee Nuclear Power Station.
Use of certain alternate design criteria not previously approved by the staff, would require a case-by-case review by NRC; Yankee was concerned that such a review process would extend the completion schedule for this reanalysis.
We were informed by your staff by telephone on June 27, 1988, that Yankee will use only those seismic reevaluation and retrofit criteria that were previously review:d and approved in our July 16, 1987 safety evaluation and as clarified in our March 21, 1988 letter.
Enclost.re 1, dated July 1988, entitled "Topics Requiring Further Review l
Related to the Seismic Upgrade of the Yankee Plant" provides acceptable 1
alternatives to case-by-case review by the NRC. However, one topic, the main steam / feed water system seismic reanalysis will require NRC review prior to system modification.
In regard to seismic anchor motions, the use oi the square root of the sum of the souares combination of Vapor Container and Reactor Support Structure seismic
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anchor motions will require justification, and staff review.
For your information we are transmitting two meeting summaries: Enclosure 2 is for the December 21, 1987 meeting on reactor support integrity held in Bethesda,
{
Maryland; Enclosure 3 is for the May 2 4, 1988 meeting on seismic upgrades held j
q in Walnut Creek, California.
Sincerely, UTiginalsigned b ile, Project Manager 8808160314 080810 MortonB.Fairk PDR ADOCK 05000029 P
PNV Project Directorate I-3 Division of Reactor Projects I/II cc: See next page
Enclosures:
- 1. July 88 report
- 2. December 21, 1987 Meeting Sumary
- 3. My 2-4,1988 Meeting Sumary prol RWessman, MRushbrook"dile, NRC& Local PDRs. PDI.3 r/f, SVarja, BBoger, DISTRIB0 TION:.0qcke i
i
. MFairtile, OGC, Edordan, BGrimes ACRS (10)
) See previous concurrence
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, OFC
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! DATE : 08/04/88
- 08/09/88
- QF
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OFFICIAL RECORD COPY r
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Mr. George Papanic, Jr.
Yankee Atomic Electric Company Yankee Nuclear Power Station Cc:
Mr. James E. Tribble, President Mr. George Papanic, Jr.
Yankee Atomic Electric Company Senior Project Engineer-Licensing 1671 Worcester Road Yankee Atomic Electric Company Framingham, Massachusetts 01701 1671 Worcester Road Framingham, Massachusetts 01701 Thomas Dignan, Esquire Ropes and Gray 225 Franklin Street Boston, Massachusetts 02110 Mr. N. N. St. Laurent Plant Superintendent Yankee Atomic Electric Company Star Route Rowe, Massachusetts 01367 Chairman Board of Selectmen Town of Rowe Rowe, Massachusetts 01367 Resident Inspector Yankee Nuclear Power Station c/o U.S. NRC Post Office Box 28 Monroe Bridge, Massachusetts 01350 Regional Administrator, Region I U.S. Nuclear Regulatory Coninission 475 Allendale Road King of Prussia, Pennsylvania 19406 Robert M. Hallisey, Director Radiation Control Program Massachusetts Department of Public Health 150 Tremont Street, 7th Floor Boston, Massachusetts 02111 l
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