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MONTHYEARML20034D9072020-02-0303 February 2020 Mesa Locations Summary Table 2 ML20034D9062020-02-0303 February 2020 Mesa Event Summary Table 1 ML20034E6052018-07-23023 July 2018 SONGS - Mesa Navy All Parcels Fig1_v9 ML20034D9472016-05-16016 May 2016 Mesa Master Sample Locations Lat-Lon ML20034D9482016-05-16016 May 2016 Soil Sample Gps Coordinates ML20034E4982016-05-16016 May 2016 Memo to File Mesa Assessment Event Summary Table 1 ML20034D9152016-05-16016 May 2016 Table 2 Mesa Survey Plan Vs Actual Summary ML20034D9142016-05-16016 May 2016 Table 1 Mesa Survey Plan Summary ML16056A1392016-03-11011 March 2016 Correction to the U.S. Nuclear Regulatory Commission Analysis of Licensees' Decommissioning Funding Status Reports ML20034E5002015-05-28028 May 2015 Memo to File Mesa Assessment Locations Summary Table 2 ML14351A0782014-12-15015 December 2014 Redacted Version of Response to Request for Additional Information Proposed Exemptions from Certain Portions of 10 CFR 50.47 and Appendix E ML13063A4422013-02-27027 February 2013 LTR-13-0183 - E-mail Don Leichtling Media Alert - Chart of Three Modes of San Onofre Unit 2 Operation, 100%, 70% and MSLB with Multiple Tube Failures ML13009A3492013-01-0808 January 2013 Response to Request for Additional Information Regarding Confirmatory Action Letter Response ML12194A1362012-07-12012 July 2012 SONGS, Steam Generator Tube, Unit 2, Wear Data 7-12-12 ML12194A1632012-07-12012 July 2012 SONGS, Unit 3 Steam Generator Tube Wear Data 7-12-12 ML1214500142012-05-23023 May 2012 NFPA 805 LAR Status Matrix - May 2012 ML1019004182010-06-28028 June 2010 Quick View Chart ML0825503212008-04-17017 April 2008 Table for AST Methodology Issue (Email) ML0728203072007-10-11011 October 2007 Electronic Distribtion Initiative Letter, Licensee List, Electronic Distribution Input Information, Division Plant Mailing Lists ML0631904142006-11-0808 November 2006 Oak Ridge Institute for Science and Education (Orise); Ltr. Dated 11/08/2006; Analytical Results for Soil & Water Samples Associated with the San Onofre Nuclear Generating Station, San Clemente, California on 10/13/2006 (IR #050-00206/06-01 ML0632500232006-10-30030 October 2006 11-2006 Draft-Outlines ML0632500712006-10-30030 October 2006 11-2006-Draft-Written-Exam-Comments ML0632502792006-10-30030 October 2006 11-2006-Draft-Operating-Exam-Comments ML0612902272005-04-0101 April 2005 04-2005-Written Exam Comments ML0434101252004-12-0202 December 2004 Additional Information Supporting the Third Ten-Year Inservice Inspection (ISI) Interval Relief Requests ISI-3-11, Revision 1 and ISI-3-12 to Support Pressurizer Heater Sleeve Repairs ML0416002992004-06-0303 June 2004 60-day Post Refueling Outage Reactor Pressure Vessel Head Inspection Report for San Onofre, Unit 2 2020-02-03
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SONGS Unit 2 Steam Generators Wear Depths Summary Steam Generator Tubes with Anti-Vibration Tube Support Tube-to- Retainer Foreign Total Indications SG2E88 (Through-Bar Plate Tube Wear Bar Object Indications (out of 9727 Wall Wear) total per SG) 50% 0 0 0 1 0 1 1 35 - 49% 2 0 0 1 0 3 3 20 - 34% 86 0 0 0 2 86 74 10 - 19% 705 108 0 0 0 813 406
< 10% 964 117 0 0 0 1081 600 TOTAL 1757 225 0 2 2 1984 734*
- This value is the number of tubes with wear indications of any depth and at any location. Since many tubes have indications in more than one depth and location, the total number of tubes is less than the total number of indications.
Steam Generator Tubes with Anti-Vibration Tube Support Tube-to- Retainer Foreign Total Indications SG2E89 (Through-Bar Plate Tube Wear Bar Object Indications (out of 9727 Wall Wear) total per SG) 50% 0 0 0 1 0 1 1 35 - 49% 0 0 0 1 0 1 1 20 - 34% 78 1 0 3 0 82 67 10 - 19% 1014 85 2 0 0 1101 496
< 10% 1499 53 0 0 0 1552 768 TOTAL 2591 139 2 5 0 2737 861*
- This value is the number of tubes with wear indications of any depth and at any location. Since many tubes have indications in more than one depth and location, the total number of tubes is less than the total number of indiations.