ML20209G742
| ML20209G742 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 07/08/1999 |
| From: | Jaffe D NRC (Affiliation Not Assigned) |
| To: | Terry C TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| Shared Package | |
| ML20209G748 | List: |
| References | |
| GL-88-20, TAC-M83608, NUDOCS 9907190238 | |
| Download: ML20209G742 (3) | |
Text
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UNITED STATES p
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NUCLEAR REGULATORY COMMISS!ON o
WASHINGTON, D.C. 20t,55-0001 July 8, 1999 Mr. C. Lance Terry _
Senior Vice President & Principal Nuclear Officer TU Electric Attn: Regulatory Affairs Department P. O. Box 1002 Glen Rose, TX 76043
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES), UNITS 1 AND 2 -
INDIVIDUAL PLANT EXAMINATION OF EXTERNAL EVENTS (TAC NO. M83608)
Dear Mr. Terry:
On June 28,1991, the NRC issued Generic Letter (GL) 88 20, Supplement 4 (with NUREG-1407, Procedural and Submittal Guidance) requesting all licensees to perform individual plant examinations of external events (IPEEE) to identify plant-specific vulnerabilities to severe accidents and to report the results to the Commission together with any licensee-determined improvements and corrective actions. In a letter dated June 27,1995, Texas Utilities Electric Company (the licensee), submitted its response to NRC, for CPSES, Units 1 and 2.
The staff contracted with Energy Research, Inc. (ERI), to conduct a completeness and reasonableness " Step 1" review of the licensee's IPEEE submittal in May 1995 and sent a request for additional information (RAl) to the licensee on December 12,1995. The licensee responded to the RAI on February 1,1996, and ERI completed its technical evaluation report
. (TER)in December 1996. Based on the results of its review, the staff concluded that the aspects of seismic; fires; and high winds, floods, transportation, and other external events were adequately addressed. The review findings are summarized in the enclosed Staff Evaluation (SE). Details of the contractor's findings are presented in the TER attached to the SE.
. On the basis of its findings in the SE, the staff notes that (1) the licensee's IPEEE is complete with regard to the information requested by Supplement 4 to GL 88-20 (and associated guidance in NUREG-1407), and (2) the IPEEE results are reasonable given the design, operation, and history of CPSES, Unit 1 and 2. The NRC staff, therefore, concludes that the.
licensee's IPEEE process is capable of identifying the most likely severe accidents and severe accident vulnerabilities. and that the CPSES IPEEE has met the intent of Supplement 4 to GL 88-20 and the resolcuun of specific generic safety issues discussed in the SE.
It should be noted that the staff focused its review primarily on the licensee's ability to examine CPSES for severe accident vulnerabilities. Although certain aspects of the IPEEE were explored in more detail than others, the review was not intended to validate the accuracy of the licensee's ' detailed findings (or quantification estimates) that underlie or stemmed from the 9907190238 99070s
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-2 July 8, 1999 examination. Therefore, the SE does not constitute NRC approval or endorsement of any IPEEE material for purposes other than those associated with meeting the intent of Supplement 4 to GL 88-20 and the resolution of specific generic safety issues discussed in the SE..
Sincerely, ORIGINAL SIGNED BY David H. Jaffe, Senior Project Manager, Section 1 1
Project Directorate IV & Decommissioning Division of Licensing Project Management Office of Nuclear Reactor Regulation
' Docket Nos. 50-445 and 50-446 -
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Enclosure:
Safety Evaluation cc w/ encl: See next page DISTRIBUTION Docket File PUBLIC i
PDIV-1 Reading SRichards (cover itr only)
E. Chow,RES l
C. Woods, RES '
D. Coe, NRR i
K.Brockman,RIV.
R. Scholl (RFS, SE only)'
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To receive a copy or tnis oocument, inoicate c in tne Dox PDIV 1/f4 PDIV-1/LAA N PDIV-1/SC C-PD T1 gg OFFICE.
3 NAME DJafMd0 LBerry h RGramm h R Mexrio h DATE 1 / 7 /99'
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DOCUMENT NAME: G:\\PDIV-1\\ComanchePeak\\LTRA83608.WPD OFFICIAL RECORD COPY l
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Comanche Peak Steam Electric Plant cc:
Senior Resident inspector Office of the Governor U.S. Nuclear Regulatory Commission ATTN: John Howard, Director P. O. Box 2159 Environmental and Natural Glen Rose, TX 76403-2159 Resources Policy l
P. O. Box 12428 Regional Administrator, Region IV Austin,TX 78711 U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arthur C. Tate, Director Arlington,TX 76011 Division of Compliance & Inspe: tion Bureau of Radiation Control Mrs. Juanita Ellis, President Texas Department of Health Citizens Association for Sound Energy 1100 West 49th Street 1426 South Polk Austin, TX 78756-3189 Dallas, TX 75224 Jim Calloway Mr. Roger D. Walker Public Utility Commission of Texas Regulatory Affairs Manager Electric Industry Analysis TU Electric P. O. Box 13326 P. O. Box 1002 Austin, TX 78711-3326 l
Glen Rose, TX 76043 George L. Edgar, Esq.
Morgan, Lewis & Bocklus 1800 M Street, N.W.
Washington, DC 20036-5869 Honorable Dale McPherson County Judge P. O. Box 851 Glen Rose, TX 76043 May 1999