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 Issue dateTitleTopic
DCL-23-009, Owner'S Activity Report for Unit 2 Twenty-Third Refueling Outage22 February 2023Owner'S Activity Report for Unit 2 Twenty-Third Refueling OutageWeld Overlay
DCL-22-091, Revised Steam Generator Tube Inspection Report for Twenty-First Refueling Outage20 December 2022Revised Steam Generator Tube Inspection Report for Twenty-First Refueling OutageNondestructive Examination
DCL-22-060, Owner'S Activity Report for Unit 1 Twenty-Third Refueling Outage21 July 2022Owner'S Activity Report for Unit 1 Twenty-Third Refueling Outage
ML22138A43618 May 2022ASME Section XI Inservice Inspection Program Plan - Fourth 10-Year Inspection Interval, Revision 1
ML21307A00115 November 2021Review of the Fall 2020 Steam Generator Tube Inservice Inspection Report
DCL-21-055, Owner'S Activity Report for Unit 2 Twenty-Second Refueling Outage19 July 2021Owner'S Activity Report for Unit 2 Twenty-Second Refueling OutageWeld Overlay
DCL-21-008, Owner'S Activity Report for Unit 1 Twenty-Second Refueling Outage27 January 2021Owner'S Activity Report for Unit 1 Twenty-Second Refueling Outage
DCL-20-039, One Hundred Eighty Day Steam Generator Report for Diablo Canyon Power Plant Unit 2 Twenty-First Refueling Outage13 May 2020One Hundred Eighty Day Steam Generator Report for Diablo Canyon Power Plant Unit 2 Twenty-First Refueling OutageNondestructive Examination
ML20064F5784 March 2020Owner'S Activity Report for Unit 2 Twenty-First Refueling OutageWeld Overlay
DCL-19-084, ASME Section XI Lnservice Inspection Program Request for Alternative NDE-RCSSE-2R22 Use of Alternate Sizing Qualification Criteria Through a Protective Clad Layer31 October 2019ASME Section XI Lnservice Inspection Program Request for Alternative NDE-RCSSE-2R22 Use of Alternate Sizing Qualification Criteria Through a Protective Clad LayerDissimilar Metal Weld
DCL-19-049, Owner'S Activity Report for Unit 1 Twenty-first Refueling Outage13 June 2019Owner'S Activity Report for Unit 1 Twenty-first Refueling OutageWeld Overlay
DCL-18-105, Submittal of the Fourth Ten-Year Interval Inservice Testing (1ST) Program Plan, Revision 15 December 2018Submittal of the Fourth Ten-Year Interval Inservice Testing (1ST) Program Plan, Revision 1Safe Shutdown
Boric Acid
Ultimate heat sink
Stroke time
Hydrostatic
Incorporated by reference
Cold shutdown justification
Power Operated Valves
DCL-18-048, Owner'S Activity Report for Unit 2 Twentieth Refueling Outage19 June 2018Owner'S Activity Report for Unit 2 Twentieth Refueling OutageBoric Acid
Weld Overlay
DCL-17-028, ASME Section XI Inservice Inspection Program Plan - Fourth 10-Year Inspection Interval18 April 2017ASME Section XI Inservice Inspection Program Plan - Fourth 10-Year Inspection Interval
DCL-16-116, ASME Section XI Inservice Inspection Program Relief Request NDE-SIF-U2 Due to Impracticality of Full Examination Volume Coverage Requirements10 November 2016ASME Section XI Inservice Inspection Program Relief Request NDE-SIF-U2 Due to Impracticality of Full Examination Volume Coverage RequirementsForeign Material Exclusion
DCL-16-115, ASME Section XI Inservice Inspection Program Relief Request NDE-RCS-SE-1R20 to Allow Use of Alternative Depth Sizing Criteria10 November 2016ASME Section XI Inservice Inspection Program Relief Request NDE-RCS-SE-1R20 to Allow Use of Alternative Depth Sizing CriteriaDissimilar Metal Weld
DCL-16-086, Owner'S Activity Report for Unit 2 Nineteenth Refueling Outage31 August 2016Owner'S Activity Report for Unit 2 Nineteenth Refueling OutageWeld Overlay
FLEX
DCL-16-056, One Hundred Eighty-Day Steam Generator Report for Nineteenth Refueling Outage2 May 2016One Hundred Eighty-Day Steam Generator Report for Nineteenth Refueling OutageBoric Acid
Nondestructive Examination
DCL-16-024, Submittal of the Fourth Ten-Year Interval Inservice Testing (IST) Program Plan2 March 2016Submittal of the Fourth Ten-Year Interval Inservice Testing (IST) Program PlanSafe Shutdown
Boric Acid
Ultimate heat sink
Stroke time
Hydrostatic
Incorporated by reference
Cold shutdown justification
Earthquake
Power Operated Valves
DCL-16-018, Owner'S Activity Report for Nineteenth Refueling Outage3 February 2016Owner'S Activity Report for Nineteenth Refueling OutageFLEX
DCL-15-116, Submittal of 10 CFR 50.55a Request FLIG-U1, Request for Extension of Third Lnservice Inspection Interval for Performing Reactor Vessel Stud Hole Ligament Examinations7 October 2015Submittal of 10 CFR 50.55a Request FLIG-U1, Request for Extension of Third Lnservice Inspection Interval for Performing Reactor Vessel Stud Hole Ligament Examinations
DCL-15-106, ASME Section XI Inservice Inspection Program Request for Relief NDE-FWNS-U1/U2 to Allow Use of Alternate Examination Volume Coverage Requirements3 September 2015ASME Section XI Inservice Inspection Program Request for Relief NDE-FWNS-U1/U2 to Allow Use of Alternate Examination Volume Coverage RequirementsForeign Material Exclusion
DCL-15-054, One Hundred Eighty-Day Steam Generator Report for Diablo Canyon Power Plant, Unit 2, Eighteenth Refueling Outage29 April 2015One Hundred Eighty-Day Steam Generator Report for Diablo Canyon Power Plant, Unit 2, Eighteenth Refueling OutageBoric Acid
Nondestructive Examination
DCL-15-048, ASME Section XI Inservice Inspection Program Request for Relief NDE-PNS-U2A to Allow Use of Alternate Examination Volume Coverage Requirements9 April 2015ASME Section XI Inservice Inspection Program Request for Relief NDE-PNS-U2A to Allow Use of Alternate Examination Volume Coverage Requirements
DCL-14-053, Owner'S Activity Report for Eighteenth Refueling Outage11 June 2014Owner'S Activity Report for Eighteenth Refueling OutageVT-2
DCL-14-027, Request for Relief from the Requirements of Appendix IX of ASME Section XI, 2001 Edition with 2003 Addendum28 March 2014Request for Relief from the Requirements of Appendix IX of ASME Section XI, 2001 Edition with 2003 AddendumTime of Discovery
Commercial Grade Dedication
Operability Determination
DCL-13-063, Inservice Inspection Report for Seventeenth Refueling Outage13 June 2013Inservice Inspection Report for Seventeenth Refueling OutageBoric Acid
Weld Overlay
Hydrostatic
Anchor Darling
VT-2
DCL-12-089, Inservice Inspection Report for Unit 1 Seventeenth Refueling Outage13 September 2012Inservice Inspection Report for Unit 1 Seventeenth Refueling OutageBoric Acid
Hydrostatic
Anchor Darling
DCL-12-007, Request for Approval of an Alternative to the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code Section XI Examination Requirement for Class 1 and 2 Piping Welds20 January 2012Request for Approval of an Alternative to the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code Section XI Examination Requirement for Class 1 and 2 Piping WeldsInternal Flooding
Probabilistic Risk Assessment
Large early release frequency
ML12025A30428 December 2011Inservice Inspection Program Plan, Third 10-Year Inspection Interval, Revision 1, Page 201 Through Drawing No. 102028, Sheet 38Boric Acid
VT-2
ML12025A30528 December 2011Inservice Inspection Program Plan, Third 10-Year Inspection Interval, Revision 1, Drawing No. 102028, Sheet 39, Through Drawing No. 104628, Sheet 46
ML12025A30328 December 2011Inservice Inspection Program Plan, Third 10-Year Inspection Interval, Revision 1, Page 101 Through Page 200
ML12025A30228 December 2011Inservice Inspection Program Plan, Third 10-Year Inspection Interval, Revision 1, Cover Page Through Page 100Nondestructive Examination
Dissimilar Metal Weld
DCL-12-006, Diablo Canyon - Inservice Inspection Program Plan, Third 10-Year Inspection Interval, Revision 1, Drawing No. 102028, Sheet 39, Through Drawing No. 104628, Sheet 4628 December 2011Diablo Canyon - Inservice Inspection Program Plan, Third 10-Year Inspection Interval, Revision 1, Drawing No. 102028, Sheet 39, Through Drawing No. 104628, Sheet 46
DCL-12-006, Diablo Canyon - Inservice Inspection Program Plan, Third 10-Year Inspection Interval, Revision 1, Page 201 Through Drawing No. 102028, Sheet 3828 December 2011Diablo Canyon - Inservice Inspection Program Plan, Third 10-Year Inspection Interval, Revision 1, Page 201 Through Drawing No. 102028, Sheet 38Boric Acid
VT-2
DCL-12-006, Diablo Canyon - Inservice Inspection Program Plan, Third 10-Year Inspection Interval, Revision 1, Page 101 Through Page 20028 December 2011Diablo Canyon - Inservice Inspection Program Plan, Third 10-Year Inspection Interval, Revision 1, Page 101 Through Page 200
DCL-12-006, Diablo Canyon - Inservice Inspection Program Plan, Third 10-Year Inspection Interval, Revision 1, Cover Page Through Page 10028 December 2011Diablo Canyon - Inservice Inspection Program Plan, Third 10-Year Inspection Interval, Revision 1, Cover Page Through Page 100Nondestructive Examination
Dissimilar Metal Weld
DCL-11-093, Inservice Inspection Report for Sixteenth Refueling Outage1 September 2011Inservice Inspection Report for Sixteenth Refueling OutageHydrostatic
Anchor Darling
VT-2
DCL-11-053, One Hundred Eighty-Day Steam Generator Report - Sixteenth Refueling Outage21 April 2011One Hundred Eighty-Day Steam Generator Report - Sixteenth Refueling OutageNondestructive Examination
DCL-10-157, Snubber Visual Examination and Functional Testing Related to the Inservice Inspection Program Third 10-Year Interval21 December 2010Snubber Visual Examination and Functional Testing Related to the Inservice Inspection Program Third 10-Year IntervalAnchor Darling
DCL-10-051, ASME Section XI Inservice Inspection Program Relief Request NDE-RCS-SE-1R16 to Allow Use of Alternate Sizing Qualification Criteria17 May 2010ASME Section XI Inservice Inspection Program Relief Request NDE-RCS-SE-1R16 to Allow Use of Alternate Sizing Qualification CriteriaDissimilar Metal Weld
ML1005005368 February 2010Inservice Inspection Report for Fifteenth Refueling OutageBoric Acid
Weld Overlay
Hydrostatic
Anchor Darling
Pressure Boundary Leakage
DCL-09-046, Submittal of Fifteenth Refueling Outage Inservice Inspection Report22 June 2009Submittal of Fifteenth Refueling Outage Inservice Inspection ReportBoric Acid
Hydrostatic
Anchor Darling
AnchorDarling
Pressure Boundary Leakage
DCL-08-103, ASME Section XI Inservice Inspection Program Relief Request NDE-Leak Path for the Unit 1, Fifteenth Refueling Outage, Third Ten-Year Inspection Interval to Allow Use of the Rules of the NRC First Revised Order, EA-03-009.4 December 2008ASME Section XI Inservice Inspection Program Relief Request NDE-Leak Path for the Unit 1, Fifteenth Refueling Outage, Third Ten-Year Inspection Interval to Allow Use of the Rules of the NRC First Revised Order, EA-03-009.Boric Acid
DCL-08-058, Transmittal of Inservice Inspection Report, Fourteenth Refueling Outage10 July 2008Transmittal of Inservice Inspection Report, Fourteenth Refueling OutageBoric Acid
Weld Overlay
Hydrostatic
Anchor Darling
DCL-07-099, ASME Section XI Inservice Inspection Program Relief Request REP-1 U2, Revision 1, and Response to Request for Additional Information22 October 2007ASME Section XI Inservice Inspection Program Relief Request REP-1 U2, Revision 1, and Response to Request for Additional InformationWeld Overlay
Nondestructive Examination
Liquid penetrant
Dissimilar Metal Weld
DCL-07-084, Inservice Inspection Report for Fourteenth Refueling Outage27 August 2007Inservice Inspection Report for Fourteenth Refueling OutageBoric Acid
Hydrostatic
Anchor Darling
DCL-06-099, ASME Section XI Inservice Inspection Program Relief Requests NDE-SLH U2 and NDE-LSL U224 August 2006ASME Section XI Inservice Inspection Program Relief Requests NDE-SLH U2 and NDE-LSL U2
DCL-06-101, Inservice Inspection Report for Plant Thirteenth Refueling Outage23 August 2006Inservice Inspection Report for Plant Thirteenth Refueling Outage
DCL-06-031, Inservice Inspection Report for Unit 1 Thirteenth Refueling Outage3 March 2006Inservice Inspection Report for Unit 1 Thirteenth Refueling OutageBoric Acid
Hydrostatic