DCL-10-064, Licensing Basis Verification Project

Licensing Basis Verification Project

ML101730556
Person / Time
Site:	Diablo Canyon
Issue date:	06/11/2010
From:	Becker J Pacific Gas & Electric Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
DCL-10-064
Download: ML101730556 (15)

Text

Pacific Gas and Electric Company James R. Becker Diablo Canyon Power Plant Site Vice President Mail Code 104/5/601 P. .Box 56 Avila Beach, CA 93424 805.545.3462 June 11, 2010 Internal:

691.3462 Fax: 805.545.6445 PG&E Letter No. DCL-10-064 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 Diablo Canyon Power Plant Licensinq Basis Verification Proiect Dear Commissioners and Staff: On May 7, 2010, representatives from Pacific Gas and Electric Company (PG&E)met with the NRC. The purpose of this meeting was to discuss a voluntary initiative by PG&E to conduct verification activities for the Diablo Canyon Power Plant (DCPP) Licensing Basis.The attached enclosure outlines PG&E commitment to perform the DCPP Licensing Basis Verification Project (LBVP). Questions concerning the DCPP LVBP should be directed to Mr. Eric Nelson at (805) 545-4777.Sinc ely, James R. Becker swh/50317991 Enclosure cc: Elmo C. Collins, NRC Region IV Eric Nelson Michael S. Peck, DCPP NRC Resident Loren Sharp Alan B. Wang, NRR 7430(A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway

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• Diablo Canyon e Palo Verde °San Onofre e South Texas Project

• Wolf Creek Enclosure PG&E Letter DCL-10-064 DIABLO CANYON POWER PLANT LICENSING BASIS VERIFICATION PROJECT NRC REGION IV PRESENTATION Dated May 7, 2010 A member of the STARS (Strategic Teaming and Resource Sharing) Alliance CallawAy o Comanche Peak

• Diablo Canyon o Palo Verde eSan Onofre

• South Texas Project

• Wolf Creek Diablo Canyon Power Plant Licensing Basis Verification Project NRC Region IV Presentation Meeting Conducted May 7, 2010 I Project Overview oSummary of Guidance and Methodology NRR Office Instruction LIC- 100, Rev. 1, ,'Control of Licensing Bases" o] "Vertical Slice" Type Audit (Attributes in NRC Inspection Procedure 93801)[ Project Focus o] Review and Evaluation of Licensing, Design, and Analysis Changes from the Original FSAR (Amendment

85) to present o] Correction of Current Licensing Basis (CLB) deficiencies identified.

o] Perform a review modeled after Component Design Basis Reviews for Eight Risk-Significant Systems after system licensing basis is verified o] Correct any identified deficiencies in the licensing basis searchable document databases o Check and Adjust Scope and Schedule based on CLB Issues 2 Identified while completing FSAR systems/topical changes Project Benefits-DCPP- Benefits (list. is not exhaustive or all-inclusive) o] Enhanced Quality DCPP Current Licensing Basis (CLB)o] Enhancements in Content and Correction of Deficiencies in the FSAR Update o Enhancements in the Content of the CLB Electronic Document Databases and Associated Full-Text Search Capabilities o Enhanced 10 CFR 50.59 Screens and Evaluations Supporting Proposed Plant and Analysis Changes Enhanced CLB Maintenance Processes for Future 3 Project Scope[] Pha ise I (February

-December 2010)0 Review, Evaluate, and Document Findings for Component Cooling Water (CCW) and Auxiliary Feed Water (AFW) Systems 0 Review CLB Databases, Identify Specific Deficiencies, and Define the Desired Capabilities of an Improved Full-Text Search Tool 0 Perform the Following:

[] Develop Methodology for Review of Remaining License Based Changes Not Addressed in System Reviews (i.e. Chap 15)o] Review the Balance of the SER, SSER's, License Amendment Safety Evaluations, and all incoming/outgoing NRC correspondence, etc for CCW and AFW systems o] Identify all 10 CFR 50.59 Evaluations and a subset of the 50.59 Screens for review o] Review identified 10CFR 50.59 evaluations/screens for CCW &AFW o] PG&E Management Review of Phase I Findings and Recommendations

-September 15, 2010 o] Perform review modeled after Component Design Basis Review, CDBR, (using NRC Inspection Procedure 71111.21 as a guide) on Component Cooling Water system. -December 31, 2010.Phase I funding has been approved.

Project Scope El Phase II (September 2010 -December 2014)Implement Authorized Phase I Recommendations (including any outstanding actions from Phase I)o] Review and Evaluate Remaining Systems/Topical Material in the FSAR ri Review remaining 10 CFR 50.59 Evaluations/Screens identified o Perform reviews modeled after Component Design Basis Reviews, CDBRs, (using NRC Inspection Procedure 71111.21 as a guide) on Seven Risk-Significant Systems" Systems for review (One or Two Per Year -AFW, SSPS, RHR, ASW, 230kV, 500kV, EDGs)" Adjust scope and schedule if identified issues warrant o Correct Deficiencies identified in CLB Document Databases (e.g., Non-Searchable pdf Documents; Missing Documents, Enclosures, and Attachments)

Phase II funding is pending.5 Project Organization Licensing Basis Verification Project Organization Chart 6 Phase I Tasks and Evaluations CCw and AFW Systems Information Compilation Primary Sources Original FSAR (Amendment

85) through Current Living FSAR Update Design Criteria Memoranda (DCM)10 CFR 50.59 Evaluations Justifying Changes Correspondence to / from NRC License Amendment Requests, License Amendments, and Related Safety Evaluations Original Safety Evaluation Report and Supplemental SER's 7

• 1 Phase I-Continued General Design Criteria and Regulatory Guide Compliance Commitments Licensing Basis Source Documents Codes and Standards o] Technical Specifications and Bases Eo Quality Evaluations, Nonconformance Reports, Violations Corrective Action Documents (Action Requests Notifications) and NRC and SAP o Three Mile Island Commitments

-'NUREG-0578 and NUREG-0737 Licensing Position Whitepapers 8

Phase I Continued Information Evaluation Compare FSAR with DCMs o Compare FSAR with RG 1.70 Rev. 1 Requirements, Design Change Packages, Analysis Changes, and Change Justifications (50.59's)Eo Compare Information with Identified Source Documents[] Project Review and Evaluation of Findings o] Review Board Evaluation of Potential Licensing Issues o Issue SAP Notifications for Resolution of Confirmed Licensing Issues Issue-Systems Summary Report and Phase II Recommendations 9

LBVP Discovery/Problem Identification Process LBVP Discovery/Problem Identification Process 10 FSAR and DCM Enhancements w FSAR Enhancements Clarify General Design Criteria Compliance by System Clarify Regulatory Guide Compliance by System Hyperlink to System Descriptions in DCM and Source Documents Review Changes to the FSAR and Correct Identified Deficiencies w DCM Enhancements E] Enhance Licensing Basis Discussion Hyperlink to Licensing Basis Source Documents 11 Summary & Conclusions Project Benefits[] Overall Enhancements in Quality and Access to the DCPP Current Licensing Basis (CLB)o] Enhancements in Content and Correction of Identified Deficiencies in the FSAR Update[] Enhancements in the Content of the CLB Electronic Document Databases[] Enhanced CLB and Databases will Result in Enhanced 10 CFR 50.59 Screens and Evaluations Supporting Proposed Plant and Analysis Changes[] Enhancements in CLB Maintenance Processes will Ensure Continued CLB Quality-12 LBVP Milestones" Periodic updates (2-3 per year) to Region IV on status and findings o September 15, 2010 PG&E Management Review of LBVP Phase I Findings and Recommendations o September 2010 Initiate Phase II o October 2010 Propose Status Mtg NRC Region IV ro December 2010 Complete Phase I CCW CDBR o March 2011 Complete Upgrade of CLB Electronic Document Databases o December 2014 Completion of Phase II 13