ML20138R596

Forwards Safety Evaluation Re Review of Response to 841022 Safety Evaluation Concerning IE Bulletin 80-11, Masonry Wall Design. Consequence Analysis Concludes That No Wall Upgrading Required

ML20138R596
Person / Time
Site:	Maine Yankee
Issue date:	11/08/1985
From:	Butcher E Office of Nuclear Reactor Regulation
To:	Randazza J Maine Yankee
Shared Package
ML20138R598	List: ML20138R596 ML20138R617
References
IEB-80-11, NUDOCS 8511180691
Download: ML20138R596 (3)

Text

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November 8, 1985 hh Docket No. 50-309 i

l Mr. J. B. Randazza Executive Vice President Maine Yankee Atomic Power Company i

l 83 Edison Drive Augusta, Maine 04336 j

f

SUBJECT:

MASONRY WALL DESIGN, IE BULLETIN 80-11 We forwarded our Safety Evaluation (SE) for the subject issue. on f

October 22, 1984.

In this SE, we concluded that the use of the arching action theory to qualify some of the unreinforced masonry walls was not acceptable and the implementation of the staff position on this methodology was required to render these walls acceptable to the staff.

In addition, the SE also stated that the block wall on the south side of the fuel pool should be upgraded such that it can withstand the postulated loading, i

including tornado effects.

l You have now provided your response to both of the above staff positions and 1

also some additional information. The enclosed SE is based on that additional information.

j

~ You have relied upon results of a consequence analysis of the failure of the masonry wall on the south side of the fuel pool to conclude that no upgrading of this wall is required. The consequence analysis review will have to be conducted by appropriate NRR staff and will be addressed in a subsequent evaluation. The remaining issues are considered resolved.

Sincerely, l

Edward J. Butcher, Acting Chief l

Operating Reactors Branch No. 3 l

Divison of Licensing

Enclosure:

As stated cc w/ enclosure:

See next page Distribution:

Docket File NRC & L PDRs Branch Files OELD ACRS 10 HThompson EJordan BGrimes PKreutzer PSears EButcher RBosnak

• See previous white for concurrences ORB #3:DL*

ORB #3:DL*

OR PKreutzer PSearstef ES c r 11/6/85 11/6/85 g /8/85 l

0

Docket No. 50-309 Mr. J. B. Randazza Executive Vice President Maine Yankee Atomic Power Company 83 Edison Drive Augusta, Maine 04336

SUBJECT:

MASONRY WALL DESIGN, IE BULLETIN 80-11 We forwarded our Safety Eva'luation (SE) for the subject facility on October 22, 1984 In this SE, we concluded that the use of the arching action theory to qualify some of the unreinforced masonry walls was not acceptable and the implementation of the staff position on this methodology was required to render these walls acceptable to the staff.

In addition, the SE also stated that the block wall on the south side of the fuel pool should be upgraded such that it can withstand the postulated loading, including tornado effects.

You have now provided your response to both of the above staff positions and also some additional information. The enclosed SE is based on that additional information.

You have relied upon results of a consequence analysis of the failure of the masonry wall on the south side of the fuel pool to conclude that no upgrading of this wall is required. The consequpnce analysis review will have to be conducted by appropriate NRR staff. The remaining issues are resolved.

Sincerely, Edward J. Butcher, Acting Chief Operating Reactors Branch No. 3 Divison of Licensing

Enclosure:

As stated cc w/ enclosure:

See next page Distribution:

Docket File NRC & L PDRs Branch Files OELD ACRS 10 HThompson EJordan BGrimer.

PKreutzer PSears EButcher RBosnak Q'TN ORB #3:DL ORBF3:DL ORB #3:DL PKfedtzer PSears;ef EButcher rf g /85 o /g /85

/ /85

/

Mr. J. B. Randazza Maine Yankee Atomic Power Company Maine Yankee Atomic Power Station cc:

Charles E. Monty, President Mr. P. L. Anderson, Project Manager Maine Yankee Atomic Power Company Yankee Atomic Electric Company 83 Edison Drive 1671 Worchester Road Augusta, Maine 04336 Framingham, Massachusetts 07101 Mr. Charles B. Brinkman Mr. G. D. Whittier Manager - Washington Nuclear Licensing Section Head Operations Maine Yankee Atomic Power Company Combustion Engineering, Inc.

83 Edison Drive 7910 Woodmont Avenue Augusta, Maine 04336 Bethesda, Maryland 20814 John A. Ritsher, Esquire Ropes & Gray 225 Franklin Street Boston, Massachusetts 02110 State Planning Officer Executive Department 189 State Street Augusta, Maine 04330 Mr. John H. Garrity, Plant Manager Maine Yankee Atomic Power Company P. O. Box 408 Wiscasset, Maine 04578 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 First Selectman of Wiscasset Municipal Building U.S. Route 1 Wiscasset, Maine 04578 Mr. Cornelius F. Holden Resident Inspector c/o U.S. Nuclear Regulatory Commission P. O. Box E Wiscasset, Maine 04578

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