ML19332G273
| ML19332G273 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities, 05000000 |
| Issue date: | 09/16/1986 |
| From: | Wojnarowski J COMMONWEALTH EDISON CO. |
| To: | Zwolinski J Office of Nuclear Reactor Regulation |
| References | |
| 2115K, GL-84-09, GL-84-9, NUDOCS 8912200424 | |
| Download: ML19332G273 (2) | |
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' Commonwealth Edison 72 West Adams Street, Chicago, Ilhnois Address Reply to. Post Off ce Box 767
- Chicago, Illinois 60690 0767 L
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September 16, 1986 H
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Mr. J. A. Ewolinski,. Director y
BWR Project Directorate.No. 1 Division of BWR Licensing i
U.S. Nuclear' Regulatory Constiesion 4
-Washington,-D.C.
20555-7
Subject:
Dresden Station Units 2 and'3
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Quad cities Station Units 1 and 2 Mark I containment combustible Gas Control NRC Docket Nos. 50-23*1/249 and 50-254/265 t
Reterence: Letter from R. M. Bernero to D. L. Farrar dated August il, 1986.
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Dear Mr.:
Ewolinski:
The referenced letter documented the NRC's recent conclusion that commonwealth Edison must either (a) provide recombiners or (b) provide a
' purge / nitrogen repressurization system at Dresden and Quad Cities to achieve l
conformance with 10 CPR 50.44 and Generic Letter'84-09. This conclusion is apparently a result of the staff's determination that the Air containment Atmosphere Dilution (ACAD) systems at Dresden and Quad Cities represent L
^ potential post-LOCA oxygen sources as described in criterion 3 of Generic 4
Letter.84-09.
As a result of your letter, we have been actively reviewing 10 CFR
.50.44, the generic letter, the historical correspondence regarding this issue and'the staff position stated in the reference in order to determine the'most' appropriate and prudent course of action. We have also contacted other utilities who've received similar letters and discussed the issue with
.the Dresden and Quad Cities Project Managers.
As a result of our efforts, we have determined that it would not be appropriate to commit to either of the modifications identified in the referenced letter at this time. We request additional time to continue our evaluation of the technical and regulatory basis for the staff's position and to evaluate other options for resolving this issue.
A00l 8912200424 860916 7
PDR ADOCK 0500 P
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Mr,. H. R. Denton September 16, 1986 We request a meeting with the appropriate staff personnel to discuss this issue in detail to assure we fully understand the staff's rationale for determining tl.at the specific modifications identified in the referenced letter are necessary. This meeting would provide the opportunity to fully evaluate other alternatives for resolving NRC concerns without resorting to plant modifications.
If you can accomodate our request for a meeting, please have the Dresden and/or Quad Cities Project Manager contact this office to arrange a schedule. An AdHoc Committee of the BWR Owners Group has recently been formed to address this issue and is planning to meet in early October.
I suggest the above-requested NRC meeting be held subsequently.
Very truly yours, pt' w k J. R, Wo, armski l
Nuctent Metnsing Administrator
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1m R. G11bart - M cc:
K. Bevan - WRP.
NRC Resident Inspector - Wad Cities 1
l NRC Resident Inspector - Dresden l
il15K
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