ST-HL-AE-4964, Informs That Util Discovered Minor Error in Sys Description for Obtaining Containment Air Sample

Informs That Util Discovered Minor Error in Sys Description for Obtaining Containment Air Sample

ML20078E821
Person / Time
Site:	South Texas
Issue date:	01/23/1995
From:	Cloninger T HOUSTON LIGHTING & POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ST-HL-AE-4964, NUDOCS 9502010156
Download: ML20078E821 (3)

Text

The Light c omp a ny ut h Texas Project Ecctdc Generating Station P. O. Box m Wmorth, Texas 77W IIouston Lighting & Power January 23, 1995 ST-HL-AE-4964 File No.: G03.02 10CFR50 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 South Texas Project Units I and 2 Docket Nos. STN 50-498, STN 50-499 Post Accident Sampline System During a review of the Nuclear Regulatory Commission's " Safety Evaluation Report Related to the Operation of South Texas Project, Units 1 and 2" (NUREG-0781), Houston Lighting & Power discovered a minor error in the system description for obtaining a containment air sample. Although Houston Lighting & Power does not believe that any Nuclear Regulatory Commission action is required to address this error, this letter is being submitted to clarify the correct system description.

In the Nuclear Regulatory Safety Evaluation Report, Section 9.3.2.2 (page 9-21) states that the containment air sample is obtained from the Hydrogen Recombiner system supply lines. The air sample is actually obtained from the Containment Hydrogen Monitoring system. The two systems are not interconnected.

At the presumed time of Nuclear Regulatory Commission review for Safety Evaluation Report preparation (i.e., 1985/1986), Amendment 40 of the Final Safety Analysis Report, issued on September 26,1984, would have been effective. The pages in section 9.3.2 that would have been reviewed for the Safety Evaluation Report did not mention that the containment air sample was obtained from the Ilydrogen Recombiner system. However, section 7A.II.B.3 stated that the containment air sample was obtained from the Containment Hydrogen Monitoring system. In addition, section 7.6.5.1 stated that the Hydrogen Recombiner system and Containment Hydrogen Monitoring system operate independently. Since the names of the two systems are similar, and the reviewer may not have had access to the other sections of the Final Safety Analysis Report, the error is credible.

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Page 2 llouston & Lighting and Power did perform a comprehensive review of the Nuclear '

Regulatory Commission's Safety Evaluation Report immediately following its issuance and commented on the Safety Evaluation Report via a letter dated June 9,1986. The minor error related to the containment air sample was not identified in that letter.

If there are any questions about this letter, please contact Mr. K. J. Taplett at (512) 972-8416.

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Houston Lighting & Power Company ST-HL-AE-4964 South Texas (roject Electric Generating Station File No.: G03.02 w Page 3 l

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f Leonard J. Callan Rufus S. Scott l Regional Administrator, Region IV Associate General Counsel .

U. S. Nuclear Regulatoy Commission Houston Lighting & Power Company i 611 Ryan Plaza Drive, Suite 400 P. O. Box 61067 i Arlington, TX 76011-8084 Houston, TX 77208 l Thomas W. Alexion Institute of Nuclear Power Project Manager Operations - Records Center I U. S. Nuclear Regulatory Commission 700 Galleria Parkway Washington, DC 20555-0001 13H15 Atlanta, GA 30339-5957 r

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David P. Loveless Dr. Joseph M. Hendrie Sr. Resident Inspector 50 Bellport Lane I c/o U. S. Nuclear Regulatory Comm. Bellport, NY l1713  !

P. O. Box 910  !

Bay City, TX 77404-0910 Richard A. Ratliff l Bureau of Radiation Control l J. R. Newman, Esquire Texas Department of Health l Morgan, Lewis & Bockius 1100 West 49th Street 1800 M Street, N.W. Austin, TX 78756-3189 Washington, DC 20036-5869 U. S. Nuclear Regulatory Comm. .

K. J. Fiedler/M. T. Hardt Attn: Document Control Desk City Public Service Washington, D. C. 20555-0001  :

P. O. Box 1771 San Antonio, TX 78296 J. C. Lanier/M. B. Lee J. R. Egan, Esquire City of Austin Egan & Associates, P.C.

Electric Utility Department 2300 N Street, N.W.

721 Barton Springs Road Washington, D.C. 20037 Austin, TX 78704 G. E. Vaughn/C. A. Johnson Central Power and Light Company P. O. Box 2121 Corpus Christi, TX 78403

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