|
---|
Category:Conference/Symposium/Workshop Paper
MONTHYEARML12157A2722012-06-11011 June 2012 5/31/2012 Summary of Telephone Conference with Licensees Regarding Near Term Task Force Recommendation 2.1 Seismic Reevaluations - Diablo Canyon, 1 and 2, San Onofre, Units 2 and 3, Columbia Generating Station, and Palo Verde, Units 1, 2, a ML0801801722008-01-22022 January 2008 Summary of 12/14/2007, Discussions on Steam Generator Tube Inspections ML0825300412002-05-0202 May 2002 Performance Technology Letter from Bob Christie Concerns Over NRC Regulations Covering Commercial Nuclear Electric Power Units 2012-06-11
[Table view] Category:Letter
MONTHYEARML24022A1492024-01-17017 January 2024 Independent Spent Fuel Storage Installation, Revision 4 to the Physical Security Plan IR 05000361/20230062023-11-29029 November 2023 NRC Inspection Report 05000361/2023-006 and 05000362/2023-006 ML23333A0682023-11-22022 November 2023 (SONGS) Units 1, 2, 3 and Independent Spent Fuel Storage Installation - Notification of Change in Nuclear Officer IR 05000361/20230052023-10-11011 October 2023 NRC Inspection Report 05000361/2023005 and 05000362/2023005 ML23276A5942023-09-28028 September 2023 and Independent Spent Fuel Storage Installation - Supplement to Decommissioning Funding Status Reports ML23268A0922023-09-20020 September 2023 Generation Station, Units 1, 2 and 3, and the Independent Spent Fuel Storage Facility (ISFSI) - Re-Registration of Dry Fuel Storage Casks for Amended Certificate of Compliance No. 1040 IR 05000361/20230012023-09-13013 September 2023 NRC Inspection Report 05000361 2023-001 and 05000362 2023-004 ML23240A5372023-08-18018 August 2023 Confirmatory Survey Activities Summary and Results for the Unit 2 and 3 Intake Structures at the San Onofre Nuclear Generating Station San Clemente CA ML23129A1802023-06-14014 June 2023 Cover Letter to State of CA on Draft EA Regarding San Onofre ISFSI Updated DFPs IR 05000361/20230032023-05-31031 May 2023 NRC Inspection Report 05000361/2023003 and 05000362/2023003 IR 05000361/20230022023-05-23023 May 2023 NRC Inspection Report 05000361/2023-002 and 05000362/2023-002 ML23137A1032023-05-11011 May 2023 (Songs), Units 1, 2 and 3, and Independent Spent Fuel Storage Installation - 2022 Annual Radiological Environmental Operating Report ML23123A0932023-04-28028 April 2023 (Songs), Units 1, 2 and 3, Submittal of Annual Radioactive Effluent Release Report - 2022 ML23230A0882023-04-10010 April 2023 Independent Spent Fuel Storage Installation - Decommissioning Quality Assurance Plan ML23094A1272023-03-29029 March 2023 Independent Spent Fuel Storage Installation - 10 CFR 50.82(a)(8)(v and VII) and 10 CFR 72.30(c) Decommissioning Funding Status Report 2021 ML23094A1332023-03-29029 March 2023 Nuclear Property Insurance ML23062A1172023-02-28028 February 2023 Generation Station Units 1, 2 and 3, Annual Radioactive Effluent Release Report for Independent Spent Fuel Storage Installation - 2022 ML22361A1022023-02-24024 February 2023 Reactor Decommissioning Branch Project Management Changes for Some Decommissioning Facilities and Establishment of Backup Project Manager for All Decommissioning Facilities ML23059A2812023-02-22022 February 2023 (Songs), Units 1, 2 and 3, 2022 Annual Turtle Incidental Take Report ML23046A3792023-02-22022 February 2023 NRC Inspection Report 050-00361/2023-001 and 050-00362/2023-001 ML23045A2022023-02-0909 February 2023 Submittal of Annual Corporate Financial Reports for San Onofre Nuclear Generating Station (SONGS) Units 2 and 3 for Fy Ending June 30, 2022 ML22287A1352023-01-0505 January 2023 Issuance of Exemption from Title 10 of the Code of Federal Regulations Part 72.106(B), Independent Spent Fuel Storage Installation Controlled Area Boundary (L-2021-LLE-0056) ML22348A0622023-01-0404 January 2023 NRC to SCE, Transmittal of the National Marine Fisheries Service'S December 12, 2022, Letter of Concurrence for Decommissioning of San Onofre Nuclear Generating Statiion, Units 2 and 3 IR 05000206/20220062022-12-15015 December 2022 NRC Inspection Report 05000206/2022006, 05000361/2022-006, and 05000362/2022-006 ML22347A2122022-12-12012 December 2022 NMFS to NRC, Endangered Species Act Section 7(a)(2) Concurrence Letter for Decommissioning of the San Onofre Nuclear Generating Station ML22340A6652022-12-0505 December 2022 Letter from John Fassell, Chief; Re., State of California Department of Public Health Review and Comments on SONGS Draft Environmental Assessment ML22333A8192022-11-21021 November 2022 Submittal of San Onofre Nuclear Generating Station, Units 2 and 3, Defueled Safety Analysis Report, Revised November 2022 IR 05000361/20220052022-11-17017 November 2022 NRC Inspection Report 05000361/2022-005 and 05000362/2022-005 ML22301A1462022-10-20020 October 2022 Report of Violations of the National Pollutant Discharge Elimination System Permit San Onofre Nuclear Generating Station (Songs), Units 2 and 3 ML22277A0162022-09-29029 September 2022 Independent Spent Fuel Storage Installation Response to Request for Additional Information Regarding Request for Exemption from 10 CFR 72.106(b) IR 05000361/20220042022-09-26026 September 2022 NRC Inspection Report 05000361/2022-004 and 05000362/2022-004 ML22238A0552022-08-29029 August 2022 U.S. Nuclear Regulatory Commission'S Analysis of Southern California Edison'S Decommissioning Funding Status Report for San Onofre Nuclear Generating Station, Units 1, 2, and 3 ML22234A1602022-07-31031 July 2022 Final Report Per 10 CFR Part 21, Degraded Snubber SF1154 Hydraulic Fluid Batch No. 18CLVS431 ML22207B8612022-07-26026 July 2022 NRC (Public) Inspection Report 05000361/2022003; 05000362/2022003 IR 05000361/20220032022-07-26026 July 2022 NRC Inspection Report (Public) 05000361-2022003 and 05000362-2022003 (002) IR 05000361/20220022022-05-12012 May 2022 NRC Inspection Report 05000361/2022-002 and 05000362/2022-002 ML22136A0842022-05-12012 May 2022 Independent Spent Fuel Storage Installation, 2021 Annual Radiological Environmental Operating Report ML22122A0402022-04-28028 April 2022 (Songs), Units 1, 2 and 3 - Annual Radioactive Effluent Release Report - 2021 ML22105A5662022-04-0505 April 2022 20053 Letter - OI Closure to Licensee - Wrongdoing Signed ML22081A1692022-03-31031 March 2022 SONGS Application Acceptance Proposed Exemption from Title 10 of the CFR, Part 72.106(b), ISFSI Controlled Boundary IR 05000206/20214022022-03-24024 March 2022 Notice of Violation, NRC Inspection Report 05000206/2021402, 05000361/2021402, 05000362/2021402, and 07200041/2021401; and Investigation Report 4-2021-004- Public- Cover Letter ML22084A0552022-03-23023 March 2022 10 CFR 50.82(a)(8Xv and VII) and 10 CFR 72.30(c) Decommissioning Funding Status Report 2021 San Onofre Nuclear Generating Station Units 1, 2, and 3 and Independent Spent Fuel Storage Installation IR 05000361/20220012022-03-14014 March 2022 NRC Inspection Report 05000361/2022-001; 05000362/2022-001 ML22066B0242022-03-0303 March 2022 (Songs), Units 1, 2, and 3, and the Independent Spent Fuel Storage Installation - Revision 2 to the ISFSI-Only Emergency Plan and Associated Changes to Emergency Plan Implementing Procedures ML22062B0282022-02-28028 February 2022 and Independent Spent Fuel Storage Installation (Isfsi), Response to Request for Supplemental Information Regarding Request for Exemption from 10 CFR 72.106(b) ML22059B0392022-02-25025 February 2022 International, Proprietary Information to Support SCE Exemption ML22060A1132022-02-24024 February 2022 Nuclear Property Insurance ML22060A1152022-02-24024 February 2022 Generation Station Units 1, 2 and 3, Annual Radioactive Effluent Release Report for Independent Spent Fuel Storage Installation - 2021 ML22048B4972022-02-15015 February 2022 (Songs), Units 1, 2 and 3 - 2021 Annual Turtle Incidental Take Report ML22031A1112022-01-26026 January 2022 (Songs), Units 2 and 3 - Annual Corporate Financial Reports 2024-01-17
[Table view] |
Text
January 22, 2008Mr. Richard M. RosenblumSenior Vice President and Chief Nuclear Officer Southern California Edison Company San Onofre Nuclear Generating Station P.O. Box 128 San Clemente, CA 92674-0128
SUBJECT:
SAN ONOFRE NUCLEAR GENERATING STATION, UNIT 2 -
SUMMARY
OFDECEMBER 14, 2007, DISCUSSIONS ON STEAM GENERATOR TUBE INSPECTIONS (TAC NO. MD7406)
Dear Mr. Rosenblum:
On December 14, 2007, the U.S. Nuclear Regulatory Commission (NRC) staff participated in aconference call with Southern California Edison (SCE) representatives regarding the 2007 steam generator tube inspections at San Onofre Nuclear Generating Station, Unit 2. A summary of the December 14, 2007, conference call is provided in the enclosure; the information supplied by SCE, in support of these discussions (handouts), is provided in an attachment to the enclosure. The NRC staff did not identify any issues that would warrant preventing the plant from starting up following its 15th refueling outage.If you have any questions, please call me at (301) 415-1480.Sincerely,/RA/N. Kalyanam, Project ManagerPlant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor RegulationDocket No. 50-361
Enclosure:
Summary of conference call cc w/encl: See next page
Pkg ML080180164, Summary/Encl ML080180172, Attachment ML080140420(*) Tech Staff InputOFFICEDORL/LPL4/PMDORL/LPL4/LADCI/CSGB/BC*DORL/LPL4/BCNAMENKalyanamJBurkhardtAHiser (*)THiltz DATE1/22/081/22/200801/14/081/22/08 San Onofre Nuclear Generating Station (12/5/2007)Units 2 and 3 cc:Douglas K. Porter, Esquire Southern California Edison Company 2244 Walnut Grove Avenue Rosemead, CA 91770Dr. David Spath, ChiefDivision of Drinking Water and Environmental Management California Dept. of Health Services 850 Marina Parkway, Bldg P, 2 nd FloorRichmond, CA 94804Chairman, Board of SupervisorsCounty of San Diego 1600 Pacific Highway, Room 335 San Diego, CA 92101Mark L. ParsonsDeputy City Attorney City of Riverside 3900 Main Street Riverside, CA 92522Mr. Gary L. Nolff Assistant General Manager - Resources Riverside Public Utilities City of Riverside, California 3901 Orange Street Riverside, CA 92501Regional Administrator, Region IVU.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064Mr. Michael L. De MarcoSan Diego Gas & Electric Company 8315 Century Park Ct. CP21G San Diego, CA 92123-1548Resident InspectorSan Onofre Nuclear Generating Station c/o U.S. Nuclear Regulatory Commission Post Office Box 4329 San Clemente, CA 92674Mayor City of San Clemente 100 Avenida Presidio San Clemente, CA 92672Mr. James T. Reilly Southern California Edison Company San Onofre Nuclear Generating Station P.O. Box 128 San Clemente, CA 92674-0128Mr. James D. BoydCalifornia State Liaison Officer Vice Chair and Commissioner California Energy Commission 1516 Ninth Street, MS 31 Sacramento, CA 95814Mr. Gary ButnerActing Branch Chief Department of Public Health Services Radiologic Health Branch MS 7610, P.O. Box 997414 Sacramento, CA 95899-7414Mr. Ross T. RidenoureVice President and Site Manager Southern California Edison Company San Onofre Nuclear Generating Station P.O. Box 128 San Clemente, CA 92674-0128Mr. A. Edward SchererDirector, Nuclear Regulatory Affairs Southern California Edison Company San Onofre Nuclear Generating Station P.O. Box 128 San Clemente, CA 92674-0128
SUMMARY
OF DECEMBER 14, 2007, CONFERENCE CALL WITHSOUTHERN CALIFORNIA EDISON REGARDING THE FALL 2007STEAM GENERATOR TUBE INSPECTION ATSAN ONOFRE NUCLEAR GENERATING STATION, UNIT 2DOCKET NO. 50-361On December 14, 2007, U.S. Nuclear Regulatory Commission staff participated in a conferencecall with Southern California Edison (the licensee) representative regarding the fall 2007 (2C15) steam generator (SG) tube inspection activities at San Onofre Nuclear Generating Station Unit 2 (SONGS 2). Prior to the conference call, the licensee provided a handout to facilitate the discussion. The conference call summarized below is based on the information provided by the licensee prior to the call.Background information on the SONGS 2 SGs is provided on page 2 of the attachment. TheSGs were originally designed with 9350 Alloy 600 mill annealed tubes. Through four separate outages, a total of 345 tubes in SG 88 and 189 tubes in SG 89 were sleeved. At the beginning of the current refueling outage, there were a total of 256 sleeves remaining in service. The Combustion Engineering-designed sleeves have a welded upper joint and a rolled lower joint.This is the last eddy current inspection planned for these SGs. They are scheduled to bereplaced during the fall 2009 refueling outage.At the time of the call, eddy current testing (ECT) inspection by the bobbin probe was completeand approximately 98 percent of the ECT by +Point inspections were complete. Additional clarifying information or information not included in the document provided by thelicensee is summarized below.Acronyms used by the licensee in the attachment include:
EFPY ------effective full power yearsTSP ------tube support plate TSH------ tubesheet hotTSC------tubesheet cold TW ------through wallFLDA------flaw length degraded area SAI------single axial indicationEC------egg crate ET------eddy current testingPDA------percent degraded areaCA------crack angle(PDA and CA only apply to circumferential indications)
The +Point probe exams in the tubesheet region were from 13 inches below the top of thetubesheet to 4 inches above the top of tubesheet to ensure the tubes were examined through the sludge pile.Visual inspection for foreign objects was conducted in the annular region and center lane of thetubesheet. No foreign objects were identified during this outage. ENCLOSURE The criterion for preventatively plugging tubes due to tube support wear is > 30 percent throughwall.One sleeve in each generator was found partially obstructed. The tubes with these obstructedsleeves were scheduled to be plugged. These sleeves were both installed in the 1999 refueling outage. Even though the sleeves were partially obstructed, it was still possible to examine the sleeves with the eddy current probe.Tube 31-165 in SG 88 has multiple axial indications at the fifth hot leg tube support plate. Theindications are not aligned.The diagonal bar tube supports (batwings) were verified intact through review of the bobbin coileddy current data. There were no secondary side visual inspections in this region. Refer to Agencywide Documents Access and Management System (ADAMS) Accession No. ML063040307, "Response to Request for Additional Information Regarding Report of Inservice Inspection of Steam Generator Tubes, Cycle 14," for more details on how the operating experience from a similar unit has been factored into the SONGS 2 inspection and data analysis techniques. SONGS 2 performed chemical cleaning of their SGs in refueling outage 2C9.The staff did not identify any issues that required follow-up action at this time; however, the staffasked to be notified in the event that any unusual conditions were detected during the remainder of the outage.
ATTACHMENT SONGS Unit 2 Handout