ML20209B260

Summary of 870116 Meeting W/Util in Bethesda,Md Re Resolution of Issues on Seismic Reevaluation Program.Agenda & List of Attendees Encl

ML20209B260
Person / Time
Site:	Yankee Rowe
Issue date:	01/20/1987
From:	Mckenna E Office of Nuclear Reactor Regulation
To:	Office of Nuclear Reactor Regulation
References
NUDOCS 8702030563
Download: ML20209B260 (6)

Text

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JAN 2 0 B37 Docket No.50-029 FACILITY: YANKEE NUCLEAR POWER STATION LICELSEE: YANKEE ATOMIC ELECTRIC COMPANY

SUMMARY

OF MEETING ON JANUARY 16, 1987 On January 16, 1987, members of the NRC staff met with representatives of Yankee Atomic Electric Company (YAEC), licensee for the Yankee Nuclear Power Station, in Bethesda, Maryland. The agenda for the meeting and list of attendees are provided in the enclosures to this sumary.

The main purpose of the meeting was to discuss resolution of issues concerning the seismic reevaluation program. Over the last year, a series of technical review meetings between the NRC staff and the licensee have been conducted. This review effort is drawing to a close. Most issues are now resolved; however, some concerns remain for piping. In general, piping that was evaluated for the YCS input with code allowables was acceptable under NRC loading as demonstrated by the confirmatory analysis of main coolant loop 4 and of the safe shutdown system piping in the primary auxiliary building.

However, for piping analyzed for YCS input and SEP guidelines, the example piping analyses have not been successful in demonstrating that the affected piping at Yankee would withstand the NRC site-specific spectra earthquake.

The staff intends to tabulate the results of the piping analysis reviews and provide them to Yankee in the near future to aid in resolution of the staff's concerns in this area.

The licensee noted that for piping inside containment, pipe support modifications have already been completed. Also, the confirmatory analyses have demonstrated that the main coolant loop piping does satisfy the acceptance criteria. Therefure, the licensee pruposed tu first complete the analysis and modifications for the piping outside containment (using the NRC spectra and approved criteria) before doing more work on piping inside containment. The staff agreed with this approach but noted that ultimately, the licensee must demonstrate that all piping within the scope can withstand the NRC spectra earthquake.

The status of the other SEP reviews were also discussed. The wind and tornadoes safety evaluation is in preparation; no technical issues remain outstanding. The pipe break review will begin this month; a review meeting may be held in February to resolve any questions. The licensee's submittals on snow loads and load combinations are under review.

8702030563 870120 PDR ADOCK 05000029 P PDR

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In summary, the staff concluded that substantial progress has' been made in resolving all of the SEP issues and that staff efforts will be concentrated- _

in the next few months to complete the reviews.

Eileen M. McKenna, Project Manager i Project Directorate #1 Division of PWR Licensing-A .

Enclosures:

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As Stated cc's: See Next Page I

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E g Date: 01/a((87 01/ 26/87 ,

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, Mr. George Papanic, Jr. _

YanLEe Atomic Electric Company Yankee Nuclear Power Station cc:

Mr. James E. Tribble, President Yankee Atomic Electric Company 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 Commission 631 Park Avenue 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

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ENCLOSURE 1 YANKEE ATOMIC ELECTRIC COMPANY U. S. NUCLEAR REGULATORY COMMISSION SEP MEETING AGENDA FOR YANKEE NUCLEAR POWER STATION JANUARY 16, 1987 BETHESDA, MARYLAND t

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1. NRC SCHEDULE FOR RESOLUTION OF SEP TOPICS A. TOPIC III-2 WIND AND TORNADO LOADINGS B. TOPIC III-4.A TORNADO MISSILES C. TOPIC III-5.A EFFECTS OF PIPE BREAKS INSIDE CONTAINMENT '

i D. TOPIC III-7.B DESIGN CODES AND SNOW LOADS E. NUREG-0825 IPSAR SUPPLEMENT

2. TOPIC III-6 SEISMIC DESIGN CONSIDERATIONS A. STATUS OF MASONRY WALL ANALYSES B. CONFIRMATORY ANALYSIS OF DSSS PIPING C. . RESOLUTION OF PIPING CRITERIA ISSUES D. NRC SCHEDULE FOR RESOLUTION a

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ENCLOSURE 2 i

NRC/ YANKEE MEETING JANUARY 16, 1987 NAME AFFILIATION C. Grimes NRC E. McKenna NRC T. Cheng NRC G. Lear NRC J. Haseltine Yankee B. Holmgren Yankee G. Papanic, Jr. Yankee i

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- JAN 2 o 19g7 DISTRIBUTION:

.NRC PDR Local PDR PAD #1 r/f PAD #1 s/f Glear EMcKenna 0GC-Bethesda Edordan BGrimes ACRS (10)

NRC Participants (cc: Licensee and Plant Service List)

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