NOC-AE-13003054, Supplement 1 to Revised STP Pilot Submittal for a Risk-Informed Approach to Resolving Generic Safety Issue (GSI)-191 to Supersede and Replace the Revised Pilot Submittal

Supplement 1 to Revised STP Pilot Submittal for a Risk-Informed Approach to Resolving Generic Safety Issue (GSI)-191 to Supersede and Replace the Revised Pilot Submittal

ML13338A165
Person / Time
Site:	South Texas
Issue date:	11/21/2013
From:	Gerry Powell South Texas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GSI-191, NOC-AE-13003054, TAC MF0613, TAC MF0614, TAC MF2400, TAC MF2401, TAC MF2402, TAC MF2403, TAC MF2404, TAC MF2405, TAC MF2406, TAC MF2407, TAC MF2408, TAC MF2409
Download: ML13338A165 (3)

Text

Nuclear Operating Company South Tras Prolect Electric Genera1lng Station J.O. Box 289 wadsworth, Texas 77483 - vVv---

November 21, 2013 NOC-AE-13003054 10 CFR 50.12 10 CFR 50.90 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 South Texas Project Units 1 and 2 Docket Nos. STN 50-498 and STN 50-499 Supplement 1 to Revised STP Pilot Submittal for a Risk-Informed Approach to Resolving Generic Safety Issue (GSI)-191 to Supersede and Replace the Revised Pilot Submittal (TAC NOS. MF0613, MF0614, MF2400, MF2401, MF2402, MF2403, MF2404, MF2405, MF2406, MF2407, MF2408, AND MF2409)

References:

1. Letter, D. W. Rencurrel, STPNOC, to NRC Document Control Desk, "Revised STP Pilot Submittal and Requests for Exemptions and License Amendment for a Risk-Informed Approach to Resolving Generic Safety Issue (GSI)-191," June 19, 2013, NOC-AE-13002986 (ML131750250)

2. Letter, Balwant Singal, NRC, to Dennis Koehl, STPNOC, "South Texas Project, Units I and 2 - Acceptance of Requests for Exemptions and License Amendment Request for Approval of a Risk-Informed Approach to Resolve Generic Safety Issue GSI-191,"

August 13, 2013, AE-NOC-13002457 (ML13214A031)

3. Letter, D. W. Rencurrel, STPNOC, to NRC Document Control Desk, "Corrections to Information Provided in Revised STP Pilot Submittal and Requests for Exemptions and License Amendment for a Risk-Informed Approach to Resolving Generic Safety Issue (GSI)-1 91," October 3, 2013, NOC-AE-13003039 (ML13295A222)

4. Letter, G. T. Powell, STPNOC, to NRC Document Control Desk, "Supplement I to Revised STP Pilot Submittal and Requests for Exemptions and License Amendment for Risk-Informed Approach to Resolving Generic Safety Issue (GSI)-191," November 13, 2013, NOC-AE-13003043 This submittal establishes that Reference 4 supersedes and replaces in its entirety Reference 1 as the STPNOC licensing application for the risk-informed approach to resolving GSI-1 91.

In Reference 1 and again in Reference 4, STP Nuclear Operating Company (STPNOC) requested exemptions from certain requirements of 10 CFR 50.46(b)(5), "Long-term cooling",

and Appendix A to 10 CFR Part 50 General Design Criteria (GDC) 35, "Emergency Core Cooling", GDC 38, "Containment Heat Removal", and GDC 41, "Containment Atmosphere ST133786986 A o 2

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NOC-AE-1 3003054 Page 2 Cleanup" and requested an amendment to South Texas Project (STP) Operating Licenses NPF-76 and NPF-80, to revise the STP Units 1 and 2 licensing basis.

In Reference 2, the NRC staff accepted Reference 1 for review.

In Reference 3, STPNOC identified discrepancies in Reference 1, described actions that STPNOC was taking to address the discrepancies. In Reference 4, STPNOC supplemented Reference 1 with corrected information. All the sections submitted in Reference 1 are included in Reference 4 and Reference 4 was submitted as a "stand alone" document and does not depend on Reference 1. The corrected information provided in Reference 4 did not affect the conclusions or the regulatory assessment proposed in Reference 1. The No Significant Hazards Considerations and the Environmental Assessment is presented in Reference 4 and is unchanged from Reference 1.

Therefore, Reference 4 is a complete submittal for the STPNOC risk-informed GSI-191 licensing application and is considered to supersede and replace Reference 1 in its entirety.

There are no regulatory commitments in this letter.

If there are questions regarding this submittal, please contact Ken Taplett at 361-972-8416, or me at 361-972-7566.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on lovewJ.6 zi ) ZoI G. T. Powell Site Vice President awh

NOC-AE-1 3003054 Page 3 cc:

(paper copy) (electronic copy)

Regional Administrator, Region IV Steven P. Frantz, Esquire U. S. Nuclear Regulatory Commission A. H. Gutterman, Esquire 1600 East Lamar Boulevard Morgan, Lewis & Bockius LLP Arlington, TX 76011-4511 Balwant K. Singal Balwant K. Singal Michael Markley Senior Project Manager John Stang U.S. Nuclear Regulatory Commission U. S. Nuclear Regulatory Commission One White Flint North (MS 8 21) 11555 Rockville Pike John Ragan Rockville, MD 20852 Chris O'Hara Jim von Suskil NRC Resident Inspector NRG South Texas LP U. S. Nuclear Regulatory Commission P. O. Box 289, Mail Code: MNl16 Kevin Polio Wadsworth, TX 77483 Richard Peha City Public Service Jim Collins City of Austin Peter Nemeth Electric Utility Department Crain Caton & James, P.C.

721 Barton Springs Road Austin, TX 78704 C. Mele City of Austin Richard A. Ratliff Robert Free Texas Department of State Health Services