ML081760285
| ML081760285 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 06/18/2008 |
| From: | Berg M South Texas |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| NOC-AE-08002311, STI 32318391, TAC MD6955, TAC MD6956 | |
| Download: ML081760285 (2) | |
Text
Nuclear Operating Company South Tas Pmrect Electric Generating Station PO. Box 289 Wadsorth. Txas 77483 June 18, 2008 NOC-AE-08002311 File No.: G25 10 CFR 50.55a STI 32318391 U. S. Nuclear Regulatory Commission Attention: Document Control Desk One White Flint North 11555 Rockville Pike Rockville, MD 20852-2738 South Texas Project Units 1 and 2 Docket No. STN 50-498, STN 50-499 Withdrawal of Relief Request (RR-ENG-2-50) (TAC Nos. MD6955 and MD6956)
Reference:
Letter from M. J. Berg, STPNOC, to NRC Document Control Desk dated October 2, 2007, "Relief Request (RR7ENG-2-50) for the Second 10 Year ISI Interval for Units 1 and 2 from 10 CFR 50.55a for the Purpose of Invoking Code Case N-698, "Design Stress Intensities And Yield Strength Values for UNS N06690 With a Minimum Specified Yield Strength of 35 KSI (240 MPa), Class 1
'Components," for Construction of Replacement Reactor Vessel Heads in Units 1 and 2," (NOC-AE-0700221 1) (ML072830449)
In accordance with. the provisions of 10 CFR 50.55a(a)(3)(i), STP Nuclear Operating Company (STPNOC) requested per the referenced letter NRC approval of ASME Code Case N-698, "Design Stress Intensities and Yield Strength Values for UNS N06690 With a Minimum Specified Yield Strength of 35 ksi (240 MPa), Class 1 Components," as an alternative to the requirements of Section III of the 1989 Edition of the ASME Code for the fabrication of replacement reactor vessel heads for South Texas Project (STP) Units 1 and 2. ASME Code Case N-698 has been approved by the NRC for use and is published in Revision 34 to NRC Regulatory Guide 1.84, "Design, Fabrication, and Materials Code Case Acceptability, ASME Section III," dated October 2007, as an Acceptable Section III Code Case. Therefore, a request for relief from the ASME Code is no longer required. Relief request RR-ENG-2-50 referenced above is withdrawn.
There are no commitments in this letter.
If there are any questions, please contact either Mr. K. J. Taplett at (361) 972-8416 or me at (361) 972-7030.
M. J. Berg Engineering Manager, Strategic Projects kjt
Page 2 NOC-AE-08002311 cc:
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Regional Administrator, Region IV U. S. Nuclear Regulatory Commission 612 East Lamar Blvd, Suite 400 Arlington, Texas 76011-4125 J
Mohan C. Thadani Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint North (MS 7 D1) 11555 Rockville Pike Rockville, MD 20852 Senior Resident Inspector U. S. Nuclear Regulatory Commission P. O. Box 289, Mail Code: MN116 Wadsworth, TX 77483 C. M. Canady City of Austin Electric Utility Department 721 Barton Springs Road Austin, TX 78704 Richard A. Ratliff Bureau of Radiation Control Texas Department of State Health Services 1100 West 49th Street Austin, TX 78756-3189 A. H. Gutterman, Esquire Morgan, Lewis & Bockius LLP Mohan C. Thadani U. S. Nuclear Regulatory Commission Thad Hill Catherine Callaway Jim von Suskil NRG South Texas LP Ed Alarcon J. J. Nesrsta R. K. Temple Kevin Polio City Public Service Jon C. Wood Cox Smith Matthews C. Kirksey City of Austin