22nd Annual Report by the Diablo Canyon Independent Safety Committee (DCISC), July 1, 2011 – June 30, 2012
Preface | Executive Summary
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22nd Annual Report, Volume II, Table of Contents–Exhibits
A. Documents Received By the DCISC
B. DCISC Public Meeting Notices, Agendas and Reports
- B.1 Notice of October 11–12, 2011 Public Meetings
- B.2 Agenda for October 11–12, 2011 Public Meetings
- B.3 Minutes of October 11–12, 2011 Public Meetings
- B.4 Notice of February 8–9, 2012 Public Meetings
- B.5 Agenda for February 8–9, 2012 Public Meetings
- B.6 Minutes of February 8–9, 2012 Public Meetings
- B.7 Notice of June 19–20, 2012 Public Meetings
- B.8 Agenda for June 19–20, 2012 Public Meetings
- B.9 Minutes of June 19–20, 2012 Public Meetings
- B.10 DCISC Service Mailing List
C. Diablo Canyon Operations
- 1.0 PG&E/DCPP Organization
- 2.0 Summary of Diablo Canyon Operations
- 2.0.1 Operating Capacity Factor
- 2.0.2 Refueling Outages
- 2.0.3 Collective Radiation Dose Equivalent Exposure
- 2.0.4 Unplanned Reactor Trips
- 2.0.5 Unplanned Safety System Actuations
- 2.0.6 Chemistry Effectiveness Indicator
- 2.0.7 Fuel Reliability
D. DCISC Reports on Fact-finding Meetings
D.1 Report on Fact Finding Meeting at DCPP on July 12–13, 2011
- 1.0 Summary
- 2.0 Introduction
- 3.1 Outage Clearance Performance
- 3.2 NRC Senior Resident Inspector Concerns
- 3.3 NRC Fatigue Management Implementation
- 3.4 Annual Radiological Release Reports
- 3.5 Single Point Vulnerabilities
- 3.6 Unit 2 Reactor Manual Trip
- 3.7 Time Critical Operator Actions
- 3.8 Component Cooling Water System Review
- 3.9 DCISC Member Meet with DCPP Officer
- 3.10 Component Mispositioning
- 4.0 Conclusions
- 5.0 Recommendations
- 6.0 References
D.2 Report on Fact Finding Meeting at DCPP on August 16–17, 2011
- 1.0 Summary
- 2.0 Introduction
- 3.1 Tsunami and Seismic Update
- 3.2 Plant Health Committee
- 3.3 Santa Barbara County Emergency Planning
- 3.4 NFPA 805 Implementation Progress
- 3.5 Licensed Operator Continuing Training
- 3.6 Equipment Reliability
- 3.7 Training Oversight Committee
- 3.8 2010 Annual Radiological Release and Environmental Monitoring Reports
- 3.9 Second Quarter 2011 Quality Verification Site Status Report
- 3.10 Premier Survey
- 3.11 Bob Budnitz Meeting with Ken Peters, Vice-President of Engineering
- 3.12 Operator “No Solo” Status
- 3.13 Reactivity Management
- 4.0 Conclusions
- 5.0 Recommendations
- 6.0 References
D.3 Report on Fact Finding Meeting at DCPP on September 7–8, 2011
- 1.0 Summary
- 2.0 Introduction
- 3.1 Operations Use of Probabilistic Risk Assessment/Safety Monitor
- 3.2 Critical Equipment Clock Resets
- 3.3 Summary of Benchmarking Activities
- 3.4 Auxiliary Feedwater System Review
- 3.5 EDG System Review
- 3.6 Containment Inspections
- 3.7 Large Transformer Update
- 3.8 DCISC Member Meet with DCPP Officer
- 3.9 Problem Evaluation Action Plan and Engineering Staffing
- 3.10 Status of Engineering Organization
- 3.11 Update on Fukushima Actions
- 3.12 Meeting with NRC Senior Resident Inspector
- 3.13 Quality Verification Assessment of Primary Equipment and Support Load Combinations Regarding Seismicity
- 3.14 Status of Performance Improvement Action Plan
- 4.0 Conclusions
- 5.0 Recommendations
- 6.0 References
D.4 Report on Fact-finding Meeting at DCPP November 15–16, 2011
- 1.0 Summary
- 2.0 Introduction
- 3.1 Meeting with NRC Senior Resident Inspector
- 3.2 Maintenance Services
- 3.3 Self-Assessment Program
- 3.4 Licensing Basis Verification Project
- 3.5 Stranded Plant Procedure
- 3.6 Auxiliary Feedwater Pumps
- 3.7 Nuclear Fuel
- 3.8 DCISC Member Meeting with Site Vice-President
- 4.0 Conclusions
- 5.0 Recommendations
- 6.0 References
D.5 Report on Fact Finding Meeting at DCPP on December 13–15, 2011
- 1.0 Summary
- 2.0 Introduction
- 3.1 Machine Vibration Monitoring
- 3.2 Three Losses of 230 kV during Outage 2R16
- 3.3 Compressed Air System
- 3.4 Update on the DCPP Responses and Actions on the Fukushima Accident
- 3.5 Engineering Rigor Action Plan Status
- 3.6 Observation and Coaching Program
- 3.7 Trouble-Shooting Program
- 3.8 EPA Closed Cooling Update
- 3.9 DCPP Progress in Addressing INPO Evaluation Items
- 3.10 Experience with the New Reactor Vessel Head Assembly
- 3.11 Safety–Security Interface Process
- 3.12 DCISC Member Meeting with Station Director
- 4.0 Conclusions
- 5.0 Recommendations
- 6.0 References
D.6 Report on Fact Finding Meeting at DCPP on January 10–11, 2012
- 1.0 Summary
- 2.0 Introduction
- 3.1 Status of Backlogs/Trends for Revisions to Operations, Maintenance, and Engineering Procedures
- 3.2 Nuclear Safety Culture
- 3.3 Quality Verification’s Assessment of Station Operation and Most Recent Quality Performance Assessment Report
- 3.4 Meeting with NRC Resident Inspector
- 3.5 Foreign Material Exclusion Issues/Trends
- 3.6 Operation of the Turbine Driven Auxiliary Feedwater Pump during Station Blackout Conditions
- 3.7 Results of Operator Licensing Examinations in 2011
- 3.8 2012 Operating Plan and 2011 Performance
- 3.9 On-line Maintenance and Risk Management
- 3.10 DCISC Member Meeting with Director of Site Services
- 4.0 Conclusions
- 5.0 Recommendations
- 6.0 References
D.7 Report on Fact Finding Meeting at DCPP on March 13–14, 2012
- 1.0 Summary
- 2.0 Introduction
- 3.1 Trends of NRC Non-Cited Violations and Allegations
- 3.2 Unified Dose Assessment Center Process Interface Weakness
- 3.3 Outage 1R17 Safety Plan
- 3.4 Vital DC Power Crosstie
- 3.5 Meet with NRC Resident Inspector
- 3.6 Operational Decision-Making
- 3.7 Eagle 21 Replacement Project
- 3.8 Containment Fan Cooler Units Anti-Rotation Modification Performance
- 3.9 Control Room Ventilation System
- 3.10 Human Performance Line Ownership Action Plan
- 3.11 Emergency Response Organization Drill
- 3.12 DCISC Member Meeting with Station Director
- 4.0 Conclusions
- 5.0 Recommendations
- 6.0 References
D.8 Report on Fact Finding Meeting at DCPP on April 3–4, 2012
- 1.0 Summary
- 2.0 Introduction
- 3.1 Emergency Preparedness Support to External Organizations
- 3.2 NRC P.1(c) Substantive Cross-cutting Issue
- 3.3 Non-outage Human Error Rate
- 3.4 NFPA 805 Update
- 3.5 Probabilistic Risk Assessment Group Update
- 3.6 Loose ISFSI Hold-down Bolts
- 3.7 Operations “Block and Tackle” Update
- 3.8 Observe Plant Health Committee
- 3.9 Performance Improvement Station Initiative
- 3.10 Meet New Chief Nuclear Officer, Ed Halpin
- 3.11 Differing Professional Opinion Program
- 3.12 DCISC Member Meet with Site VP
- 4.0 Conclusions
- 5.0 Recommendations
- 6.0 References
D.9 Report on Fact Finding Meeting at DCPP on May 22–23 2012
- 1.0 Summary
- 2.0 Introduction
- 3.1 MIDAS Update
- 3.2 Electrical Clearance Apparent Cause Evaluation
- 3.3 Health of DCPP Steam Generators
- 3.4 Outage 1R17 Plant Tour
- 3.5 Outage Coordination Center Meeting
- 3.6 High Pressure Injection System Review
- 3.7 Office & Workspace Seismic Safety Update
- 3.8 Fukushima Update
- 3.9 DCISC Open Items List
- 3.10 Component Misposition Prevention Team
- 3.11 DCISC Member Meet with Site VP
- 4.0 Conclusions
- 5.0 Recommendations
- 6.0 References
E. Record of DCISC Tours of DCPP
F. DCISC Open Items List
G. DCISC Public Contacts
- G.1 DCISC Telephone/Correspondence Log (PDF)
- G.2 DCISC Correspondence (PDF)
- G.3 Comments Received at Public Meetings