ML13051A190

San Onofre, Unit 2, Supplemental Document Submittal Regarding Confirmatory Action Letter Response to Address Steam Generator Tube Degradation

ML13051A190
Person / Time
Site:	San Onofre
Issue date:	02/18/2013
From:	St.Onge R J Edison International Co, Southern California Edison Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
TAC ME9727
Download: ML13051A190 (2)

Text

SOUTHERN CALIFORNIA Richard 1. St. OngeE DI.SON Director, Nuclear Regulatory Affairs and-I Emergency PlanningAn EDISON INTERNATIONAL Company Proprietary InformationWithhold from Public Disclosure10 CFR 50.4February 18, 2013U.S. Nuclear Regulatory CommissionATTN: Document Control DeskWashington, DC 20555-0001Subject: Docket No.50-361Supplemental Document SubmittalRegarding Confirmatory Action Letter Response(TAC No. ME 9727)San Onofre Nuclear Generating Station, Unit 2References: 1. Letter from Mr. Elmo E. Collins (USNRC) to Mr. Peter T. Dietrich (SCE), datedMarch 27, 2012, Confirmatory Action Letter 4-12-001, San Onofre NuclearGenerating Station, Units 2 and 3, Commitments to Address Steam GeneratorTube Degradation2. Letter from Mr. Peter T. Dietrich (SCE) to Mr. Elmo E. Collins (USNRC), datedOctober 3, 2012, Confirmatory Action Letter -Actions to Address SteamGenerator Tube Degradation, San Onofre Nuclear Generating Station, Unit 2Dear Sir or Madam,On March 27, 2012, the Nuclear Regulatory Commission (NRC) issued a Confirmatory ActionLetter (CAL) (Reference 1) to Southern California Edison (SCE) describing actions that the NRCand SCE agreed would be completed to address issues identified in the steam generator tubesof San Onofre Nuclear Generating Station (SONGS) Units 2 and 3. In a letter to the NRC datedOctober 3, 2012 (Reference 2), SCE reported completion of the Unit 2 CAL actions andincluded a Return to Service Report (RTSR) that provided details of their completion.The purpose of this letter is to submit three additional documents that were previouslyreferenced in the October 3, 2012 submittal. Enclosures 1-3 of this submittal provide theproprietary version of these three documents as listed in the table below. Because theenclosures contain information that is proprietary, SCE requests this information be withheldfrom public disclosure in accordance with 10 CFR 2.390(a)(4). Enclosures 4 and 5 provide thenon-proprietary version of MHI documents L5-04GA567, "Evaluation of Stability Ratio for Returnto Service," and L5-04GA585, "Screening Analytical Evaluations for Operational Assessment."Enclosure 6 provides the non-proprietary version of WEC document LTR-SGDA-1 2-36, "Flow-Induced Vibration and Tube Wear Analysis of the San Onofre Nuclear Generating Station Unit 2Replacement Steam Generators Supporting Restart." Enclosures 7 and 8 provide the notarizedaffidavits for these documents which provide the basis on which the information in eachdocument may be withheld from public disclosure by the NRC and address with specificity theconsiderations listed by paragraph 10 CFR 2.390(b)(4).Proprietary Information (4Withhold from Public DisclosureP.O. Box 128 Decontrolled Upon Removal From Enclosures 1-3San Clemente, CA 92672 -fk Document Control Desk-2-February 18, 2013Enclosure Document Title1 L5-04GA567, Evaluation of Stability Ratio for Return toService, Rev. 6 (Proprietary -P)2 L5-04GA585, Analytical Evaluations for OperationalAssessment, Rev 2. (P)3 LTR-SGDA-12-36, Flow-Induced Vibration and TubeWear Analysis of the San Onofre Nuclear GeneratingStation Unit 2 Replacement Steam GeneratorsSupporting Restart, Rev. 3 (P)4 L5-04GA567, Evaluation of Stability Ratio for Return toService, Rev. 6 (Non-proprietary -NP)5 L5-04GA585, Analytical Evaluations for OperationalAssessment, Rev. 2 (NP)6 LTR-SGDA-12-36, Flow-Induced Vibration and TubeWear Analysis of the San Onofre Nuclear GeneratingStation Unit 2 Replacement Steam GeneratorsSupporting Restart, Rev. 3 (NP)7 Affidavit by MHI for Enclosures 1 and 2, L5-04GA567,Evaluation of Stability Ratio for Return to Service, andL5-04GA585, Analytical Evaluations for OperationalAssessment8 Affidavit by WEC for Enclosure 3, LTR-SGDA-12-36,Flow-Induced Vibration and Tube Wear Analysis of theSan Onofre Nuclear Generating Station Unit 2Replacement Steam Generators Supporting RestartThere are no new regulatory commitments contained in this letter. If you have any questions orrequire additional information, please call me at (949) 368-6240.Sincerely,Enclosures: As described in the table abovecc: E. E. Collins, Regional Administrator, NRC Region IVJ. R. Hall, NRC Project Manager, SONGS Units 2 and 3G. G. Warnick, NRC Senior Resident Inspector, SONGS Units 2 and 3R. E. Lantz, Branch Chief, Division of Reactor Projects, NRC Region IVProprietary InformationWithhold from Public DisclosureDecontrolled Upon Removal From Enclosures 1-3