ML20125B285
| ML20125B285 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 10/22/1979 |
| From: | Delgeorge L COMMONWEALTH EDISON CO. |
| To: | Parr O Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20125B289 | List: |
| References | |
| NUDOCS 7910290287 | |
| Download: ML20125B285 (1) | |
Text
5
's C:mm:nw ;lth Edis:n One First National Plaza. Chicago. Illinois Address Reply to: Post Othce Box 767 Chicago, Illinois 60690 October 22, 1979 l
Mr. O. D.
Parr, Chief Light Water Reactors - Branch 3 Division of Project Management U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Subject:
LaSalle County Station Units 1 and 2 Anticipated Transient Without Scram (ATWS)
NRC Docket Nos. 50-373 and 50-374 References (a):
L. O. DelGeorge letter to O.
D.
Parr dated March 7, 1979 (b):
S. A. Varga letter to B.
Lee, Jr.
dated August 17, 1979
Dear Mr. Parr:
As was indicated in Reference (a), Commonwealth Edison is aware of the recent Commission activities related to ATWS in-cluding NUREG-0460, Supplement 3.
Commonwealth Edison shall implement a recirculation pump trip for ATWS as described in NUREG-0460, Supplement 3 5 2.3, Table 1, Note 1.
It is also acknowledged that there is the potential for other plant modifica-tions on the LaSalle County units in the event an ATWS rule is issued.
Furthermore, in response to the directive contained in Reference (b), Commonwealth Edison has developed a procedure which specifically addresses " Transients With Failure to Scram."
An uncontrolled copy of that procedure is attached for your in-formation.
This procedure was discussed with Mr. A. Bournia of your staff at the meeting of October 11, 1979 in your offices.
If you have any further questions in this regard, please direct them to this office.
Very truly yours, L.
O. DelGeorge Nuclear Licensing Administrator l
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attachment 7910290 EF t
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