ML19209C852

Forwards Design Assessment Rept, Revision 6,revised Pages

ML19209C852
Person / Time
Site:	LaSalle
Issue date:	10/15/1979
From:	Peoples D COMMONWEALTH EDISON CO.
To:	Parr Od Office of Nuclear Reactor Regulation
Shared Package
ML19209C853	List: ML19209C852 ML19209C856
References
NUDOCS 7910180376
Download: ML19209C852 (1)

Text

a

\s Commonwealth Edison One First National Plaza. Chicago, libnois

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% Address Reply to: Post Office Box 767 /

Chicago, Illinois 60690 octcher 15, 1979 Mr. Olan D. Parr, Chief Light Water Reactore - Branch 3 Division of Project Managemont U.S. Nuclear Rogulatory Cor.wtission Wachington, DC 20555

Subject:

LaSalle County Station Unite 1 & 2 Mark II Containmont NRC Docket Nos. 50-373/374 eforence (a): L. O. Do1Coorge letter to O. D. Parr dated March 23, 1979 Dear Mr. Parra Commonwealth Edison provided information described in Reference (a) to revise the Design Assessment Report for LaSalle County Station. Subsequently, additional information was de-veloped in response to MRC diccuscionc; that information han i

been incorporated into the updated Appendix C which is attached.

This information reflects the current status of the

' Mark II Owner's Group on this subject. In our judgoment, this submittal resolves all outstanding Mark II Containment incues because we fool that those critoria agree with those of the Commission.

Throo (3) signed originalo and thirty-seven (37) copies of this revision are submitted for your review.

Very truly yours, ll I Yv. ch .

D. L. Peoples Director of Nuclear Licensing LODamac attachment SUBSCRIBED and "W ? to 1178 '260

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befor no tkic - ,' d a y of 4.,s , 1979.

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h WU r;6tary Public

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LSCS-MARK II DAR Rev. 6 10/79 LA SALLE COUNTY POWER STATION INSTRUCTIONS FOR UPDATING YOUR MARK II DAR To update your copy of the LSCS-MARK II DAR, remove and destroy the following pages and insert pages and figure as indicated.

REMOVE INSERT Contents pages lii through vi Contents pages iii through vi and viii and viii Pages 4.5-3 and 4.5-4 Pages 4.5-3 through 4.5-8 Pages 4.6-2 and 4.6-3 Pages 4.6-2 through 4.6-4 Page C.0-1 Page C.0-1 Pages C.1-2 through C.1-4 Pages C.1-2 through C.1-4 Pages C.1-6 through C.1-9 Pages C.1-6 through C.1-9 After page C.3-3 New Appendix C.4, including pages C.4-i through C.4-iii, C.4-1 through C.4-39, and Figures C.4-1 through C.4-15 p%$ Ydkhb 1178 261