ML20029A719

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Advises of Completed Review of Responses Re Addl Info on Seismic Design Considerations for Certain safety-related Vertical Steel Tanks Concerning USI A-40, Seismic Design Criteria, Design within Guidelines
ML20029A719
Person / Time
Site: Callaway Ameren icon.png
Issue date: 02/26/1991
From: Lynch M
Office of Nuclear Reactor Regulation
To: Schnell D
UNION ELECTRIC CO.
Shared Package
ML20029A720 List:
References
REF-GTECI-A-40, REF-GTECI-SC, TASK-A-40, TASK-OR TAC-M71762, NUDOCS 9103040124
Download: ML20029A719 (3)


Text

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February 26, 1991 Docket No'. 50-483 DISTRIBUTION:

, Docket Files MDLynch NRC PDR EJordan Local PDR OGC.WFI PDIII 3 r/f JHannon Mr. Donald F. Schnell PDIII-3 Gray GBagchi-Senior Vice President. Nuclear JZwolinski HAshar Union Electric Company PKreutzer ACRS(10)

Post Office Box 149 BBoger TAlexion St. Louis, Missouri 63166

Dear Mr. Schnell:

SUBJECT:

SEISMIC DESIGN CONSIDERATIONS FOR CERTAIN CALLAWAY SAFETY RELATED YERTICAL STEEL TANKS (TAC NO. M71762)

As a result of activities related to the technical-resolution of Unresolved Safety Issue (USI) A.40, " Seismic Design Criteria," a determination was made that a potential safety issue existed with regard to the ability of the safety.related refueling water storage tank at your facility to maintain its structural and functional, integrity during postulated earthquake events.

We subsequently requested additional information regarding the adequacy of the seismic -design of this tank. You have provided the requested information.

The staff has -completed its review of your responses. Based on our review of the-information you provided, the staff conc'udes that the design of the refueling water storage tank is in accordance with the guidelines provided in'Section 3.7.3 of Revision 2 to the Standard Review Plan (NUREG.0800),

-your' commitments in the Updated Final Safety Analysis Report (UFSAR), and other acceptable procedures, and is, therefore,l acceptable.

Our safety evaluation is enclosed.

Sincerely, Onginal Signed By:

M. D. Lynch, Senior Project Manager Project Directorate-III.3

-Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation

-Safety Evaluation cc w/ enclosure:

See next page

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February 26,1991-Docket No. 50-483 DISTRIBUTION:

,s Docket files MDLynch NRC PDR EJordan Local PDR OGC.WF1 PDlII.3 r/f JHannon Mr. Donald F.- Schnell PDill-3 Gray GBagchi Senior Vice President-- Nuclear JZwolinski HAshar

-Union Electric Company PKreutzer ACRS(10)

Post Office Box 149 BBoger TAlexion St. Louis, Missouri 63166-

Dear Mr.- Schnell:

SUBJECT:

SEISMIC DESIGN CONSIDERATIONS FOR CERTAIN CALLAWAY SAFETY.RELATED VERI!CALSTEELTANKS-(TACNO.M71762)

As a result of activities related to the technical resolution of Unresolved Safety _ Issue (USI) A.40, " Seismic Design Criteria," a detennination was made that a potential safety issue existed with regard to the ability of the safety.related refueling water storage tank at your facility to maintain its structural and functional integrity during postulated earthquake events.

We subsequently requested additional information regarding the adequacy of the seismic design of this tank. You have provided the requested information.

The staff has completed its review of your responses.

Based on our review of the-information you provided, the staff concludes that the design of the refueling water storage tank is in accordance with the guidelines provided in Section 3.7.3 of Revision 2 to the Standard Review Plan-(NUREG.0800),

your commitments in the Updated Final Safety Analysis Report (UFSAR), and

.other acceptable' procedures, and is, therefore, acceptable.

Our safety evaluation is enclosed.

Sincerely, Original Signed By:

M. D. Lynch, Senior Project Manager Project Directorate 111 3 Division of Reactor Projects Ill/IV/V Office of Nuclear Reactor Regulation Safety Evaluation

-cc w/ enclosure:

See next page f;

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CALLAWAY SEISMIC DESIGN

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Mr. D. F. Schnell Callaway Plant Union Electric Company Unit No. I cc: Dr. J. O. Cermack Mr. Bart D. Withers CFA Inc.

President and Chief 4 Professional Dr., Suite 110 Executive Officer Gaithersburg, MD 20879 Wolf Creek Nuclear Operating Corporation Gerald Charnoff, Esq.

P. O. Box 411 Thomas A. Baxter, Esq.

Burlington, Kansas 66839 Shaw, Pittman,_ Potts & Trowbridge 2300 N Street, N. W.

Mr. Dan I. Bolef, President Washington, D. C.

20037-Kay Drey, Representative Board of Directors Coalition Mr. T. P. Sharkey for the Environment Supervising Engineer, St. Louis Region Site Licensing University City, Missouri 63130 6267 Delmar Boulevard Union Electric -Co;.pany Post Offica Box-620 fulton, Missour.1 65251-U. S. Muclear Regulatory Commission Resident Inspectors Office RRf1 Steedman, Missouri 65077 tir. Alan C. Passwater, Manager Licensing and Fuels

-Union Electric Company-Post Office Box 149~

St. Louis, Missouri 63166 Manager. - Electric Department _

Mic:nuri Public Service Commission 3J1 W.'High' Post Office-Box 360-Jefferson City, Missouri 65102 Regional Administrator U.uS. NRC, Region III 799 Roosevelt Road Glen Ellyn, Illinois - 60137 Mr. Ronald A. Kucera, Deputy Director Department of Natural Resources P. O. Box 176 Jefferson City, Missouri 65102

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