ML17187A792
| ML17187A792 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities  |
| Issue date: | 02/18/1997 |
| From: | Pulsifer R NRC (Affiliation Not Assigned) |
| To: | Johnson I COMMONWEALTH EDISON CO. |
| References | |
| TAC-M96442, TAC-M96443, TAC-M96444, TAC-M96445, NUDOCS 9702200321 | |
| Download: ML17187A792 (3) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Ms. Irene Johnson, Acting Manager Nuclear Regulatory Services Commonwealth Edison Company Executive Towers West III 1400 Opus Place, Suite 500 Downers Grove, IL 60515 February 18, 1997
SUBJECT:
REACTOR WATER CLEANUP SYSTEM HIGH ENERGY LINE BREAK OUTSIDE THE DRYWELL (TAC NOS. M96442, M96443, M96444 AND M96445)
Dear Ms. Johnson:
By letters dated December 10, 1996, and January 14, 1997, Commonwealth Edison Company (ComEd) described the modification for the implementation of automatic isolation of the Reactor Water Cleanup System (RWCU) on direct indication of a high energy line break (HELB) for the Dresden Nuclear Power Station, Units 2 and 3, and the Quad Cities Nuclear Power Station, Units I and 2, as committed to by ComEd in a letter dated September 4, 1996. This letter also provided projected installation dates for the modifications at each of the sites.
Upon review of this submittal, the staff inquired of ComEd whether all resistance temperature devices (RTD.s) to be used in this modification would be safety-related.
In a telephone call on December 19, 1996, Mr. Mark Wagner of your staff confirmed that all RTDs for this modification will be safety-related at Dresden and Quad Cities.
We understand that the replacement of the intergranular stress-corrosion cracking (IGSCC) susceptible RWCU piping and components in Dresden, Unit 2, and Quad Cities, Units I and 2, have been replaced with IGSCC resistant materials and that the Dresden, Unit 3, replacement will be completed during.
its fourteenth refueling outage (currently scheduled for March 1997).
The proposed schedule for installation of the auto isolation system in the fifteenth refueling outage for Dresden, Unit 2, and Quad Cities, Unit I, is acceptable.
However, due to the extended dates of the fifteenth refueling outage for Dresden, Unit 3 (01/99) and Quad Cities, Unit 2 (03/99) and the potential for further slippage in this schedule, it is requested that you reevaluate your commitment for these two units. Specifically, it is requested that you evaluate the feasibility of completing the non-outage work associated with these modifications on a reasonable schedule such that completion of the 200054 NBC flf
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.,_ modifications could be accomplished during a forced or scheduled outage of sufficient duration prior to each units respective fifteenth refueling outage.
Sincerely,
/sf Robert M. Pulsifer, Project Manager Project Directorate III-2 Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation Docket Nos. 50-237, 50-249, 50-254, 50-265 cc:
see next page Distribution:
Docket File, T5C3 E. Adensam, EGAl J. Stang.
PUBLIC R. Capra OGC, 015818 PDII I-2 r/f C. Moore ACRS, T2E26 J. Roe, JWR R. Pulsifer P. Hiland, RIII DOCUMENT NAME:
QC96442.LTR
- SEE PREVIOUS CONCURRENCE To receive a copy of this document, indic,ete, in the box: "C" = Copy without/
OFFICE PM: PDIII-2 D:PDIII-2 C-SCSB NAME RPULSIF RCAPRA fJ...u.-
CBERLINGER*
DATE 02// /97 02//<a/97 01/07/97
I. Johnson Co11111onwealth Edison Company cc:
Michael I. Miller, Esquire Sidley and Austin One First National Plaza Chicago, Illinois 60603 Site Vice President Dresden Nuclear Power Station 6500 North Dresden Road Morris, Illinois 60450-9765 Station Manager Dresden Nuclear Power Station 6500 North Dresden Road Morris, Illinois 60450-9765 U.S. Nuclear Regulatory Commission Resident Inspectors Office Dresden Station 6500 North Dresden Road Morris, Illinois 60450-9766 Richard J. Singer Manager - Nuclear MidAmerican Energy Company 907 Walnut Street P.O. Box 657 Des Moines, Iowa 50303 Brent E. Gale, Esq.
Vice President - Law and Regulatory Affairs MidAmerican Energy Company One RiverCenter Place 106 East Second Street P.O. Box 4350 Davenport, Iowa 52808 Chairman Rock Island County Board of Supervisors 1504 3rd Avenue Rock Island County Office Bldg.
Rock Island, Illinois 61201 Regional Administrator U.S. NRC, Region III 801 Warrenville Road Lisle, Illinois 60532-4351 Dresden Nuclear Power Station Unit Nos. 2 and 3 Quad Cities Nuclear Power Station Unit Nos. 1 and 2 Illinois Department of Nuclear Safety Office of Nuclear Facility Safety 1035 Outer Park Drive *
- Springfield, Illinois 62704 Chairman Grundy County Board Administration Building 1320 Union Street Morris, 11 l i noi s 60450 Mr. L. William Pearce Station Manager Quad Cities Nuclear Power Station 22710 206th Avenue North Cordova, Illinois 61242 U.S. Nuclear Regulatory Commission Quad Cities Resident Inspectors Office 22712 206th Avenue North Cordova, Illinois 61242 Document Control Desk-Licensing Commonwealth Edison Company 1400 Opus Place, Suite 400 Downers Grove, Illinois 60515