ML20101N215
| ML20101N215 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 04/03/1996 |
| From: | Querio R COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9604080292 | |
| Download: ML20101N215 (2) | |
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,4 Commonw ealth IWison Company IMalic Generatmg 5tation T601 North 21st Ro.id Wrseilles, 11.61341-9757 Tel H1035N>761 April 3,1996 United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555
Subject:
LaSalle County Nuclear Power Station Units 1 and 2 Comed Submittal Providing AdditionalInformation Discussed During the March 13,1996 Conference Call Regarding the Main Steamline Isolation Valve (MSIV)
Leakage Control System (LCS) Alternate Leakage Treatment (ALT) Path Submittal NRC Docket Nos. 50-373 and 50-374
Reference:
G. Benes letter to U. S. NRC, dated August 28,1995, LaSalle Submittal Regarding Elimination of the Main Steamline Isolation Valve (MSIV) Leakage Control System (LCS) Attemate Leakage Treatment (ALT) Path.
The Referenced submittal transmitted the original application for amendment to propose changes to revise LaSalle Unit 1 and LaSalle Unit 2 Technical Specifications to support elimination of the Main Steam Isolation Valve Leakage Control System (MSIV LCS) and instead use the main steam line drains and condenser to process MSIV leakage. The purpose of this letter is to provide additional information that was discussed in the March 13,1996 conference call between NRR and Comed.
The fourth paragraph of page A-6 states that: "The block walls supporting three pressure sensing lines were also identified as outliers for both units and will be reinforced to ensure adequate seismic performance." The question was asked by the NRC whether or not these block walls were being modified in accordance with IE Bulletin 80-11, " Masonry Wall Design".
Comed's response is that these walls have been modified for Unit 1 in compliance with IE Bulletin 80-11, and will be modified for Unit 2 in compliance with IE Bulletin 80-11 during the next Refuel Outage.
The original Significant Hazards Consideration, that was included in the Referenced submittal, remains valid.
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If there are any further questions or comments concerning this letter, please refer them to me at (815) 357-6761, extension 3600.
Respectfully,
.\\%p R. E. Querio Site Vice President LaSalle County Station cc:
H. J. Miller, NRC Region 111 Administrator P. G. Brochman, NRC Senior Resident inspector - LaSalle D. M. Skay, Project Manager - NRR - LaSalle F. Niziolek, Office of Nuclear Facility Safety - IDNS Central File
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