Reactor Cavity Seal Ring Generic Issue (Generic Letter 79-43)
GL79043
UNITED STATES
NUCLEAR REGULATORY COMMISSION
WASHINGTON. D. C. 20555
Docket Nos. 50-295 and 50-304
Mr. Cordell Reed
Assistant Vice President
Commonwealth Edison Company
Post Office Box 767
Chicago, Illinois 60690
Dear Mr. Reed:
RE: REACTOR CAVITY SEAL RING GENERIC ISSUE (PWR)
We have completed our review of your response to our letter of February 2,
1978, in regard to the potential for the reactor cavity annulus seal ring to
become a destructive missile in the event of a loss-of-coolant accident pipe
break inside the reactor cavity.
Your response acceptably resolves this issue for Zion station, Unit Nos. 1
and 2.
Sincerely,
A. Schwencer, Chief
Operating Reactors Branch #1
Division of Operating Reactors
cc: See next page
Mr. Cordell Reed
Commonwealth Edison Company
cc: Robert J. Vollen, Esquire
109 North Dearborn Street
Chicago, Illinois 60602
Dr. Cecil Lue-Hing
Director of Research and Development
Metropolitan Sanitary District
of Greater Chicago
100 East Erie Street
Chicago, Illinois 60611
Zion-Benton Public Library District
2600 Emmaus Avenue
Zion, Illinois 60099
Mr. Phillip P. Steptoe
Isham, Lincoln and Beale
Counselors at Law
One First National Plaza
42nd Floor Chicago, Illinois 60603
Susan N. Sekuler, Esquire
Assistant Attorney General
Environmental Control Division
188 West Randolph Street, Suite 2315
Chicago, Illinois 60601
Page Last Reviewed/Updated Tuesday, March 09, 2021