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{{#Wiki_filter:Edwin I. Hatch Nuclear Plant Edwin I. Hatch Nuclear Plant NRC Region II Status Meeting NRC Region II Status Meeting August 15, 2007 August 15, 2007Dennis Madison -Hatch Vice PresidentSteve Douglas -Plant Manager Southern Nuclear Operating Company Agenda*Introduction
{{#Wiki_filter:Edwin I. Hatch Nuclear Plant NRC Region II Status Meeting August 15, 2007 Dennis Madison - Hatch Vice President Steve Douglas - Plant Manager Southern Nuclear Operating Company Enclosure 2
*Hatch Project Overview
 
-Plant Performance
Agenda
-Site Vice President Reorganization
* Introduction
*Topical Updates
* Hatch Project Overview
*Major Projects
  - Plant Performance
-Major Projects Underway
  - Site Vice President Reorganization
-Recently Completed Projects
* Topical Updates
*Open Discussion Plant Performance August 7, 2007 Unit 2 Reactor Trip*I&C technician inadvertently tripped an overcurrentrelay on the normal incoming feeder breaker for "D"4160 VAC bus during calibration*Loss of this bus resulted in a loss of 2 condensate pumps and 2 booster pumps, as well as a recirc runback *Plant scrammed on low reactor water level *All systems responded as designed; no actuation of HPCI or RCIC *Bus re-energized about 1.5 minutes from alternate source*Breakdown in risk assessment process Forced Loss Rate -HatchForced Loss Rate0.01.02.03.04.05.06.07.0 8.09.010.011.012.0Jan06Feb06Mar06Apr06May06Jun06Jul06Aug06Sep06Oct06Nov06Dec06Jan07Feb07Mar07Apr07May07Jun07Cycle Based Averages (18 or 24 Months)PercentINPO 100% Performance LevelUnit 1 - Monthly Cycle AvgUnit 2 - Monthly Cycle AvgYear End Goal LevelAction Level Industrial Safety -HatchIndustrial Safety Accident Rate - Plant Value0.00.20.40.60.81.01.21.41.61.82.0Jan06Feb06Mar06Apr06May06Jun06Jul06Aug06Sep06Oct06Nov06Dec06Jan07Feb07Mar07Apr07May07Jun07Cycle Based Averages (18 or 24 Months)Industrial Safety Accident Rate per 200,000 Hours WorkedINPO 100% Performance LevelIndustrial Safety Accident Rate (Cycle Based)Action Level NRC Performance Indicators -HatchNRC PI - Safety System Functional FailuresWhite > 6Green  6 0 1 2 3 4 5 6 7 8Safety System Functional FailuresJan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06Sep-06Oct-06Nov-06Dec-06Jan-07Feb-07Mar-07Apr-07May-07Jun-0712 Month Rolling SumWhite > 6Green  6Unit 1 DataUnit 2 DataAction LevelNote: Yellow/Red No Threshold Unit 1 HPCI Unit 1 RCIC Unit 2 HPCI Unit 2 RCIC NRC Performance Indicators -HatchNRC PI - Mitigating System Performance Index, Emergency AC Power SystemGreen  1.0E-06White > 1.0E-06 OR PLE =  YesYellow > 1.0E-05Red > 1.0E-041.0E-071.0E-061.0E-051.0E-041.0E-03Mitigating System Performance Index (MSPI) ValueJan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06Sep-06Oct-06Nov-06Dec-06Jan-07Feb-07Mar-07Apr-07May-07Jun-07Rolling 36 Month ValuesGreen 1.0E-06White > 1.0E-06 OR PLE = YesYellow > 1.0E-05Red > 1.0E-04Unit 1 DataUnit 2 DataAction Level Emergency Diesel Generator NRC Performance Indicators -HatchNRC PI - Mitigating System Performance Index, High Pressure Injection SystemGreen 1.0E-06White > 1.0E-06 OR PLE = YesYellow > 1.0E-05Red > 1.0E-041.0E-071.0E-061.0E-051.0E-041.0E-03Mitigating System Performance Index (MSPI) ValueJan-06Feb-06Mar-06Apr-06May-06Jun-06Jul-06Aug-06Sep-06Oct-06Nov-06Dec-06Jan-07Feb-07Mar-07Apr-07May-07Jun-07Rolling 36 Month ValuesGreen 1.0E-06White > 1.0E-06 OR PLE = YesYellow > 1.0E-05Red > 1.0E-04Unit 1 DataUnit 2 DataAction Level Site Vice President Reorganization J. B. BEASLEY, JR.
* Major Projects
Chairman,President & Chief Executive OfficerK. S. KING CFO & Vice PresidentCorporate Services M. M. CASTONGeneral Counsel,          VP External Affairs & Corporate SecretaryW. L. BARGERON Plant ManagerJ. D. WILLIAMSSite Support ManagerW. D. DRINKARDQuality Assurance ManagerM. J. AJLUNISite Support Manager*SCS EmployeeSite Vice President Reorganization -January 2007 0407R. A. BELL*Human Res. Sr. VPSouthern CompanyD. R. MADISONVice President -HatchJ. R. JOHNSONVice President -FarleyT. E. TYNANVice President -VogtleT. L. YOUNGBLOODSite Support ManagerC. R. DEDRICKSON Plant Manager S. M. DOUGLAS Plant ManagerS. A. MITCHELLAsst. Corp. Sec./Exec. Asst. to Pres./Asst. Treas.P. R. BIZJAKSafety & Health ManagerC. D. COLLINSSupply Chain General ManagerVACANT *H. R. Director J. G. WOLFEComptroller &
  - Major Projects Underway
TreasurerJ. T. GASSERExecutive Vice President                       
  - Recently Completed Projects
& Chief Nuclear OfficerA. F. THORNHILLManaging Atty. & Compliance ManagerC. H. PHILLIPSPublic Affairs ManagerJ. M. GODFREYEnvironmental Affairs ManagerW. H. LEEEmergency Planning SupervisorJ. A. MILLERSenior Vice PresidentNuclear DevelopmentD. P. BURFORDNuclear Fleet Security and Emergency Preparedness ManagerVogtle 3&4 BellefonteD. H. JONESEngineeringVice President W. L. BURMEISTERPlant Support ManagerA. HARRISEngineering Services ManagerG. K. McELROYEngineering Admin.
* Open Discussion Enclosure 2
Services ManagerJ. B. PAPPASConfiguration Management ManagerB. E. HUNT Nuclear Fuels Manager B. J. GEORGE Nuclear Licensing ManagerW. B. THIGPENSecurity Supervisor/Access Authorization P. A. HURSTCorporate Concerns SupervisorL. M. STINSONFleet Operations SupportVice President Fleet Operations Support (proposed)Fleet Ops VPFleetOperations ManagerFleet Maintenance / WC ManagerFleet  Outage Manager AssistantFleet Chem/ HP Manager Fleet Security &EP ManagerFleet Training & PI ManagerOperationsStaffMaintenance/
 
WC StaffOutage StaffHP Staff ***ChemStaff *SecuritySupervisor EPSupervisorSecurity StaffEP Staff NFSCoordinatorAdmin AsstAdmin Asst *TrainingSupervisor *Instructors /Staff * / **PI Staff CAPCO*      Transfer from Engineering**      Transfer from Supply Chain***    Transfer from Environmental Site Engineering (proposed)
Plant Performance Enclosure 2
Site VPPlant Mgr.Engineering Mgr. ***
 
Site Suppt. Mgr.Design Engineering SupportModifications PMMS*Mech& Civil Design*Elec/I & C Design Nuc. Systems Programs BOP Systems Elec./I & C Admin. Asst Performance Improvement Principal Engineer -Licensing **
August 7, 2007 Unit 2 Reactor Trip
Equipment ReliabilityNew or Modified Org.
* I&C technician inadvertently tripped an overcurrent relay on the normal incoming feeder breaker for D 4160 VAC bus during calibration
*EFIN *Design Chg. (Corp) *Mech/Civil (Corp)
* Loss of this bus resulted in a loss of 2 condensate pumps and 2 booster pumps, as well as a recirc runback
*Elec/I &C (Corp)**Dotted line reporting to Corporate Licensing *** Dotted line reporting to Chief Engineer Topical Updates SNM Update*Procedure revisions implemented to upgrade SNM accountability practices for in-core detectors following conclusion of SNM retrieval activities last year*Initial results indicated that 4 in-core detectors were not at the location specified*All 4 detectors were subseque ntly located and accounted for*Fuel pool legacy cleanup scheduled 3 rd/4 th quarter 2007 Tritium Sampling*Update on tritium graphs (T12, NW10, N008A)*Mactec Status -Phase 2 Report (2007)-Complete hydrology study (determine need)*Unit 2 CST pipe Replacement Update Tritium SamplingSAMPLE WELL T121.00E+031.00E+041.00E+051.00E+06 1.00E+07 F e b-0 3 M a y-0 3 A u g-03 Nov-03Mar-04 J un-04 S e p-0 4 J an-05 A pr-05Jul-05Oct-05Feb-06May-0 6 A u g-0 6 D e c-06 M ar-07Jun-07H3 pCi / LT12 Tritium SamplingTritium Outfall Sample  (Subsurface drain N008A) 1.00E+031.00E+041.00E+0505/01/0 6 0 7/01/0 609/01/0 6 1 1/01/0 601/01/0 703/01/0 7 05/0 1/0 707/01/0 7H3 pCi / L1Y22N008A Tritium SamplingSAMPLE WELL (NW10)1.00E+043.00E+045.00E+047.00E+049.00E+041.10E+051.30E+051.50E+051.70E+0510/9/200611/9/200612/9/20061/9/20072/9/20073/9/20074/9/20075/9/20076/9/20077/9/20078/9/2007H3 pCi/ LNW10 1A RHR Pump Vibration*Vibration observed on 1A RHR pump only during two pump flow in Division 1 (Pumps A & C)*Occurs only in loop flow range of 4000 -6000 gpm*Cause of vibration has not been determined*Conceptual design being developed to increase natural frequency of the loop Alternative Source Term*Full scope AST analysis submitted to NRC 8/29/2006*Addresses control room inleakage concerns of Generic Letter 2003-01*Control room inleakage testing showed good results, well within interim licensing basis limits*Approval of AST submittal required by 5/31/2010*Significant interdisciplinary review at NRR is in progress*Planned and potential modifications to support AST are scheduled to complete by spring 2010 Staffing*Pipeline Replenishment-Strategies for hiring entry level workers and engineers-License classes*8 candidates to finish this December*10 SRO candidates started June 2007*16 candidates to start March 2008
* Plant scrammed on low reactor water level
*16 candidates to start March 2009
* All systems responded as designed; no actuation of HPCI or RCIC
*Average class size of 16-All other initial programs up and running (Chemistry, HP, Maintenance, etc.)
* Bus re-energized about 1.5 minutes from alternate source
Steam Chase Grating Analyses*Tool boxes were staged over grated vent openings between Reactor Building steam pipe chase and torus room*Hinged vent covers were strapped to vent grating on Unit 2*Tool boxes were removed from grating on both units and strap was removed on Unit 2 Tool Box Steam Chase Grating Analyses*Unit 1 limiting parameter is differential pressure on wall between torus room and ECCS pump rooms*Unit 1 analysis demonstrated that as-found vent paths provided adequate opening to meet differential pressure limits*Unit 2 limiting parameter is differential pressure on wall between torus room and reactor building ground level floor*Unit 2 analysis is at the preliminary results stage (not checked)*Preliminary results indicate that correcting for mass flow conservatisms will result in differential pressures within the analyzed limits TSC HVAC Availability*Event represents good incorporation of corrective actions from 2005 TSC white finding*EP and work planning personnel discussed work activity during planning phase*Work was placed on hold when first phase took longer than expected so issue could be discussed with NRC Region II personnel*Region II provided timely feedback regarding SNC's planned course of action Planned Major Projects Unit 1 Main Transformer Replacement*Unit 1 Main transformer replacement (2008)-Asset management/Life Cycle management-Replaces leased Alabama Power transformer with permanent transformer-Spare transformer delivered earl y 2008 for infant mortality issue-New transformer good to end of plant life Shroud Tie Rod Upper Restraints*Unit 1 Shroud tie rod upper restraint replacement (2008)*Unit 2 Shroud tie rod upper restraint replacement (2009)-Equipment reliability/safety-Replaces upper supports with larger components to remove susceptibility to IGSCC-Restores to BWRVIP criteria for repaired shrouds
* Breakdown in risk assessment process Enclosure 2
-Eliminates need to re-inspect shroud horizontal welds-Licensing submittal for Unit 1 has been issued Condenser Bypass SpargerReplacement*Unit 1 and Unit 2 Condenser bypass spargerreplacements (Unit 1 in 2008. Unit 2 in 2009)-Replaces degraded bypass spargers-Spargerscurrently limit Operations use of bypass (i.e., length of time in Hot shutdown)
 
Adjustable Speed Drives*Adjustable speed drives (Unit 1 in 2010 and Unit 2 in 2011)-Asset management/Life Cycle management-Replaces the Recirculation M-G se ts with Variable Frequency drives-Eliminates Recirculation flow step changes from fluid coupling positioner-Does not eliminate step changes from Bi-stable flow-Equipment reliability Feedwater SpargerEnd Pins*Feedwater spargerend pin replacement (Unit 1 in 2008, no Unit 2 installation)*Remote tooling will allow the installation of the Feedwater SpargerEnd Pins simultaneously with other work activities on the refueling floor Completed Major Projects Mark VI Turbine Controls*Unit 1 and Unit 2 Mark VI Turbine Controls-Completed on both units-Asset management/Life Cycle management-Installs triple redundant digital controls
Forced Loss Rate - Hatch Forced Loss Rate 12.0 11.0 10.0 9.0 8.0 7.0 Percent 6.0 5.0 4.0 3.0 2.0 1.0 0.0 Jan06  Feb06  M ar06  A pr06  M ay06  Jun06  Jul06  A ug06  Sep06  Oct06  No v06  Dec06  Jan07  Feb07  M ar07  A pr07  M ay07  Jun07 Cycle Based Averages (18 or 24 Months)
-Replaces obsolete Mark I control system Unit 2 Generator Exciter Controls*Unit 2 Generator Exciter Controls -Completed on Unit 2 -Unit 1 to complete in 2008)-Asset management/Life Cycle management-Replaces obsolete exciter with EX 2100 alterex Condenser Bellows Replacement*Unit 1 and Unit 2 Condenser Bellows Replacement-Completed on both units-Equipment reliability -Industry OE-Replaced bellows that were beyond design life Unit 1 Drywell Cooler Replacement*Unit 1 Drywell Cooler Replacement-Equipment reliability-2005 shutdown due to drywell leakage and containment integrity issue (leak from drywell into cooler) -Replaced all 16 Drywell cooler coils Open Discussion}}
INPO 100% Performance Level                                  Unit 1 - Monthly Cycle Avg Unit 2 - Monthly Cycle Avg                                    Year End Goal Level Action Level Enclosure 2
 
Industrial Safety - Hatch Industrial Safety Accident Rate - Plant Value Industrial Safety Accident Rate per 2.0 1.8 1.6 1.4 1.2 1.0 200,000 Hours Worked 0.8 0.6 0.4 0.2 0.0 Jan06  Feb06  M ar06  A pr06  M ay06  Jun06  Jul06  A ug06  Sep06  Oct06  No v06  Dec06  Jan07  Feb07  M ar07  A pr07  M ay07  Jun07 Cycle Based Averages (18 or 24 Months)
INPO 100% Performance Level                                                      Industrial Safety Accident Rate (Cycle Based)
Action Level Enclosure 2
 
NRC Performance Indicators - Hatch NRC PI - Safety System Functional Failures 0
1 Safety System Functional Failures 2
3 Green  6 4
5 6
7                                                         White > 6 8
Jan-06 Feb-06 Mar-06 Apr-06 May-06 Jun-06 Jul-06 Aug-06 Sep-06 Oct-06 Nov-06 Dec-06 Jan-07 Feb-07 Mar-07 Apr-07 May-07 Jun-07 12 Month Rolling Sum Note: Yellow/Red No Threshold                                             White > 6      Green  6        Unit 1 Data    Unit 2 Data      Action Level Enclosure 2
 
Unit 1 HPCI Enclosure 2
 
Unit 1 RCIC Enclosure 2
 
Unit 2 HPCI Enclosure 2
 
Unit 2 RCIC Enclosure 2
 
NRC Performance Indicators - Hatch NRC PI - Mitigating System Performance Index, Emergency AC Power System 1.0E-07 Green  1.0E-06 Mitigating System Performance Index 1.0E-06 White > 1.0E-06 OR PLE = Yes 1.0E-05 (MSPI) Value Yellow > 1.0E-05 1.0E-04 Red > 1.0E-04 1.0E-03 Jan-06 Feb-06 Mar-06 Apr-06 May-06 Jun-06 Jul-06 Aug-06 Sep-06 Oct-06 Nov-06 Dec-06 Jan-07 Feb-07 Mar-07 Apr-07 May-07 Jun-07 Rolling 36 Month Values Green 1.0E-06                    White > 1.0E-06 OR PLE = Yes      Yellow > 1.0E-05 Red > 1.0E-04                      Unit 1 Data                        Unit 2 Data Action Level Enclosure 2
 
Emergency Diesel Generator Enclosure 2
 
NRC Performance Indicators - Hatch NRC PI - Mitigating System Performance Index, High Pressure Injection System 1.0E-07 Green 1.0E-06 Mitigating System Performance Index 1.0E-06 White > 1.0E-06 OR PLE = Yes 1.0E-05 (MSPI) Value Yellow > 1.0E-05 1.0E-04 Red > 1.0E-04 1.0E-03 Jan-06 Feb-06 Mar-06 Apr-06 May-06 Jun-06 Jul-06 Aug-06 Sep-06 Oct-06 Nov-06 Dec-06 Jan-07 Feb-07 Mar-07 Apr-07 May-07 Jun-07 Rolling 36 Month Values Green 1.0E-06                    White > 1.0E-06 OR PLE = Yes        Yellow > 1.0E-05 Red > 1.0E-04                      Unit 1 Data                        Unit 2 Data Action Level Enclosure 2
 
Site Vice President Reorganization Enclosure 2
 
Site Vice President Reorganization - January 2007 J. B. BEASLEY, JR.
Chairman, President & Chief Executive Officer S. A. MITCHELL Asst. Corp. Sec./Exec.
Asst. to Pres./Asst. Treas.
K. S. KING              D. H. JONES            M. M. CASTON                                J. T. GASSER                          R. A. BELL*                    J. A. MILLER CFO & Vice President           Engineering            General Counsel,                      Executive Vice President                Human Res. Sr. VP              Senior Vice President VP External Affairs &
Corporate Services          Vice President        Corporate Secretary                    & Chief Nuclear Officer                  Southern Company                Nuclear Development J. G. WOLFE            B. J. GEORGE          A. F. THORNHILL                  W. D. DRINKARD                                                                                      Vogtle 3&4 Comptroller &                                Managing Atty. &                Quality Assurance L. M. STINSON Nuclear Licensing Treasurer              Manager          Compliance Manager                  Manager                                    Fleet Operations Support                            Bellefonte Vice President C. D. COLLINS            B. E. HUNT            C. H. PHILLIPS Supply Chain           Nuclear Fuels      Public Affairs Manager General Manager            Manager P. R. BIZJAK                                  J. M. GODFREY                                                                      D. P. BURFORD W. L.                                                                                             Nuclear Fleet Security Safety & Health        BURMEISTER          Environmental Affairs Manager                                        Manager                                                                        and Emergency Plant Support                                                                                        Preparedness Manager Manager VACANT
* P. A. HURST H. R. Director          A. HARRIS            Corporate Concerns                                                  W. B. THIGPEN                W. H. LEE Engineering              Supervisor                                                        Security              Emergency Planning Services Manager                                                                            Supervisor/Access              Supervisor Authorization G. K. McELROY Engineering Admin.
Services Manager J. R. JOHNSON                                T. E. TYNAN                            D. R. MADISON J. B. PAPPAS                                        Vice President - Farley                  Vice President - Vogtle                    Vice President - Hatch Configuration Management Manager W. L. BARGERON            T. L. YOUNGBLOOD                                            S. M. DOUGLAS          M. J. AJLUNI Plant Manager                Site Support                                            Plant Manager        Site Support Manager                                                                      Manager C. R. DEDRICKSON            J. D. WILLIAMS Plant Manager              Site Support Manager 0407
                                                                                                                                                                        *SCS Employee Enclosure 2
 
Fleet Operations Support (proposed)
Fleet Ops VP Assistant Fleet          Fleet Fleet Outage              Fleet Chem /           Fleet Security &                     Fleet Training &
Operations    Maintenance /
Manager                HP Manager              EP Manager                              PI Manager Manager      WC Manager Operations    Maintenance/                                            NFS Outage Staff HP Staff ***                                       Admin Asst Admin Asst
* CAPCO Staff        WC Staff                                            Coordinator Security                EP          Training Chem Staff
* PI Staff Supervisor            Supervisor  Supervisor *
* Transfer from Engineering
**    Transfer from Supply Chain
***   Transfer from Environmental                                      Security Staff          EP Staff Instructors /
Staff * / **
Enclosure 2
 
Site Engineering (proposed)
New or Modified Org.
Site VP Plant Mgr.              Engineering Mgr. ***                   Site Suppt. Mgr.
                                                  *** Dotted line reporting to Chief          Performance Admin. Asst Engineer              Improvement
*EFIN
*Design Chg. (Corp)
*Mech/Civil (Corp)                                                                           Principal Engineer -
*Elec/I &C (Corp)
Design                      Engineering Support Licensing **
                                                                                                        **Dotted line Modifications PMMS                Nuc. Systems                          Programs                  reporting to Corporate Licensing
          *Mech & Civil BOP Systems                            Elec./I & C Design
            *Elec/I & C Equipment Reliability Design Enclosure 2
 
Topical Updates Enclosure 2
 
SNM Update
* Procedure revisions implemented to upgrade SNM accountability practices for in-core detectors following conclusion of SNM retrieval activities last year
* Initial results indicated that 4 in-core detectors were not at the location specified
* All 4 detectors were subsequently located and accounted for
* Fuel pool legacy cleanup scheduled 3rd/4th quarter 2007 Enclosure 2
 
Tritium Sampling
* Update on tritium graphs (T12, NW10, N008A)
* Mactec Status
  - Phase 2 Report (2007)
  - Complete hydrology study (determine need)
* Unit 2 CST pipe Replacement Update Enclosure 2
 
H3 pCi / L Fe b-03        1.00E+03  1.00E+04      1.00E+05  1.00E+06  1.00E+07 M
ay
                          -0 3
Au g-0    3 No v-03 M
ar
                          -0 4
Ju n-04 Se p-Tritium Sampling 04 Ja n-05 Ap r- 0 T12                5 Ju                                                                        SAMPLE WELL T12 l- 0 5
O ct
                          -0 5
Fe b-06 M
ay
                          -0 6
Au g-0    6 De c-06 M
ar
                          -0 7
Ju n-07
 
Tritium Sampling Tritium Outfall Sample (Subsurface drain N008A) 1.00E+05 H3 pCi / L 1.00E+04 1.00E+03
              /0 6    /0 6    /0 6              /0 6            /0 7            /0 7    /0 7    /0 7
            /0 1    /0 1    /0 1              /0 1            /0 1            /0 1    /0 1    /0 1 05      07      09                11              01            03        05      07 1Y22N008A Enclosure 2
 
Tritium Sampling SAMPLE WELL (NW10) 1.70E+05 1.50E+05 1.30E+05 H3 pCi/ L 1.10E+05 9.00E+04 7.00E+04 5.00E+04 3.00E+04 1.00E+04 10/9/2006  11/9/2006  12/9/2006  1/9/2007  2/9/2007    3/9/2007  4/9/2007  5/9/2007  6/9/2007  7/9/2007  8/9/2007 NW10 Enclosure 2
 
1A RHR Pump Vibration
* Vibration observed on 1A RHR pump only during two pump flow in Division 1 (Pumps A & C)
* Occurs only in loop flow range of 4000 - 6000 gpm
* Cause of vibration has not been determined
* Conceptual design being developed to increase natural frequency of the loop Enclosure 2
 
Alternative Source Term
* Full scope AST analysis submitted to NRC 8/29/2006
* Addresses control room inleakage concerns of Generic Letter 2003-01
* Control room inleakage testing showed good results, well within interim licensing basis limits
* Approval of AST submittal required by 5/31/2010
* Significant interdisciplinary review at NRR is in progress
* Planned and potential modifications to support AST are scheduled to complete by spring 2010 Enclosure 2
 
Staffing
* Pipeline Replenishment
  - Strategies for hiring entry level workers and engineers
  - License classes
* 8 candidates to finish this December
* 10 SRO candidates started June 2007
* 16 candidates to start March 2008
* 16 candidates to start March 2009
* Average class size of 16
  - All other initial programs up and running (Chemistry, HP, Maintenance, etc.)
Enclosure 2
 
Steam Chase Grating Analyses
* Tool boxes were staged over grated vent openings between Reactor Building steam pipe chase and torus room
* Hinged vent covers were strapped to vent grating on Unit 2
* Tool boxes were removed from grating on both units and strap was removed on Unit 2 Enclosure 2
 
Tool Box Enclosure 2
 
Steam Chase Grating Analyses
* Unit 1 limiting parameter is differential pressure on wall between torus room and ECCS pump rooms
* Unit 1 analysis demonstrated that as-found vent paths provided adequate opening to meet differential pressure limits
* Unit 2 limiting parameter is differential pressure on wall between torus room and reactor building ground level floor
* Unit 2 analysis is at the preliminary results stage (not checked)
* Preliminary results indicate that correcting for mass flow conservatisms will result in differential pressures within the analyzed limits Enclosure 2
 
TSC HVAC Availability
* Event represents good incorporation of corrective actions from 2005 TSC white finding
* EP and work planning personnel discussed work activity during planning phase
* Work was placed on hold when first phase took longer than expected so issue could be discussed with NRC Region II personnel
* Region II provided timely feedback regarding SNCs planned course of action Enclosure 2
 
Planned Major Projects Enclosure 2
 
Unit 1 Main Transformer Replacement
* Unit 1 Main transformer replacement (2008)
  - Asset management/Life Cycle management
  - Replaces leased Alabama Power transformer with permanent transformer
  - Spare transformer delivered early 2008 for infant mortality issue
  - New transformer good to end of plant life Enclosure 2
 
Shroud Tie Rod Upper Restraints
* Unit 1 Shroud tie rod upper restraint replacement (2008)
* Unit 2 Shroud tie rod upper restraint replacement (2009)
  - Equipment reliability/safety
  - Replaces upper supports with larger components to remove susceptibility to IGSCC
  - Restores to BWRVIP criteria for repaired shrouds
  - Eliminates need to re-inspect shroud horizontal welds
  - Licensing submittal for Unit 1 has been issued Enclosure 2
 
Condenser Bypass Sparger Replacement
* Unit 1 and Unit 2 Condenser bypass sparger replacements (Unit 1 in 2008. Unit 2 in 2009)
  - Replaces degraded bypass spargers
  - Spargers currently limit Operations use of bypass (i.e., length of time in Hot shutdown)
Enclosure 2
 
Adjustable Speed Drives
* Adjustable speed drives (Unit 1 in 2010 and Unit 2 in 2011)
  - Asset management/Life Cycle management
  - Replaces the Recirculation M-G sets with Variable Frequency drives
  - Eliminates Recirculation flow step changes from fluid coupling positioner
  - Does not eliminate step changes from Bi-stable flow
  - Equipment reliability Enclosure 2
 
Feedwater Sparger End Pins
* Feedwater sparger end pin replacement (Unit 1 in 2008, no Unit 2 installation)
* Remote tooling will allow the installation of the Feedwater Sparger End Pins simultaneously with other work activities on the refueling floor Enclosure 2
 
Completed Major Projects Enclosure 2
 
Mark VI Turbine Controls
* Unit 1 and Unit 2 Mark VI Turbine Controls
  - Completed on both units
  - Asset management/Life Cycle management
  - Installs triple redundant digital controls
  - Replaces obsolete Mark I control system Enclosure 2
 
Unit 2 Generator Exciter Controls
* Unit 2 Generator Exciter Controls
  - Completed on Unit 2 - Unit 1 to complete in 2008)
  - Asset management/Life Cycle management
  - Replaces obsolete exciter with EX 2100 alterex Enclosure 2
 
Condenser Bellows Replacement
* Unit 1 and Unit 2 Condenser Bellows Replacement
  - Completed on both units
  - Equipment reliability - Industry OE
  - Replaced bellows that were beyond design life Enclosure 2
 
Unit 1 Drywell Cooler Replacement
* Unit 1 Drywell Cooler Replacement
  - Equipment reliability
  - 2005 shutdown due to drywell leakage and containment integrity issue (leak from drywell into cooler)
  - Replaced all 16 Drywell cooler coils Enclosure 2
 
Open Discussion Enclosure 2}}

Latest revision as of 03:17, 23 November 2019

08/15/2007 Public Meeting Summary - Enclosure 2
ML072350546
Person / Time
Site: Hatch  Southern Nuclear icon.png
Issue date: 08/23/2007
From: Douglas S, Madison D
Southern Nuclear Operating Co
To:
Office of Nuclear Reactor Regulation
Shared Package
ML072350528 List:
References
FOIA/PA-2010-0209
Download: ML072350546 (43)
v • d • e


Text

Edwin I. Hatch Nuclear Plant NRC Region II Status Meeting August 15, 2007 Dennis Madison - Hatch Vice President Steve Douglas - Plant Manager Southern Nuclear Operating Company Enclosure 2

Agenda

  • Introduction
  • Hatch Project Overview

- Plant Performance

- Site Vice President Reorganization

  • Topical Updates
  • Major Projects

- Major Projects Underway

- Recently Completed Projects

  • Open Discussion Enclosure 2

Plant Performance Enclosure 2

August 7, 2007 Unit 2 Reactor Trip

  • I&C technician inadvertently tripped an overcurrent relay on the normal incoming feeder breaker for D 4160 VAC bus during calibration
  • Loss of this bus resulted in a loss of 2 condensate pumps and 2 booster pumps, as well as a recirc runback
  • Plant scrammed on low reactor water level
  • All systems responded as designed; no actuation of HPCI or RCIC
  • Bus re-energized about 1.5 minutes from alternate source
  • Breakdown in risk assessment process Enclosure 2

Forced Loss Rate - Hatch Forced Loss Rate 12.0 11.0 10.0 9.0 8.0 7.0 Percent 6.0 5.0 4.0 3.0 2.0 1.0 0.0 Jan06 Feb06 M ar06 A pr06 M ay06 Jun06 Jul06 A ug06 Sep06 Oct06 No v06 Dec06 Jan07 Feb07 M ar07 A pr07 M ay07 Jun07 Cycle Based Averages (18 or 24 Months)

INPO 100% Performance Level Unit 1 - Monthly Cycle Avg Unit 2 - Monthly Cycle Avg Year End Goal Level Action Level Enclosure 2

Industrial Safety - Hatch Industrial Safety Accident Rate - Plant Value Industrial Safety Accident Rate per 2.0 1.8 1.6 1.4 1.2 1.0 200,000 Hours Worked 0.8 0.6 0.4 0.2 0.0 Jan06 Feb06 M ar06 A pr06 M ay06 Jun06 Jul06 A ug06 Sep06 Oct06 No v06 Dec06 Jan07 Feb07 M ar07 A pr07 M ay07 Jun07 Cycle Based Averages (18 or 24 Months)

INPO 100% Performance Level Industrial Safety Accident Rate (Cycle Based)

Action Level Enclosure 2

NRC Performance Indicators - Hatch NRC PI - Safety System Functional Failures 0

1 Safety System Functional Failures 2

3 Green 6 4

5 6

7 White > 6 8

Jan-06 Feb-06 Mar-06 Apr-06 May-06 Jun-06 Jul-06 Aug-06 Sep-06 Oct-06 Nov-06 Dec-06 Jan-07 Feb-07 Mar-07 Apr-07 May-07 Jun-07 12 Month Rolling Sum Note: Yellow/Red No Threshold White > 6 Green 6 Unit 1 Data Unit 2 Data Action Level Enclosure 2

Unit 1 HPCI Enclosure 2

Unit 1 RCIC Enclosure 2

Unit 2 HPCI Enclosure 2

Unit 2 RCIC Enclosure 2

NRC Performance Indicators - Hatch NRC PI - Mitigating System Performance Index, Emergency AC Power System 1.0E-07 Green 1.0E-06 Mitigating System Performance Index 1.0E-06 White > 1.0E-06 OR PLE = Yes 1.0E-05 (MSPI) Value Yellow > 1.0E-05 1.0E-04 Red > 1.0E-04 1.0E-03 Jan-06 Feb-06 Mar-06 Apr-06 May-06 Jun-06 Jul-06 Aug-06 Sep-06 Oct-06 Nov-06 Dec-06 Jan-07 Feb-07 Mar-07 Apr-07 May-07 Jun-07 Rolling 36 Month Values Green 1.0E-06 White > 1.0E-06 OR PLE = Yes Yellow > 1.0E-05 Red > 1.0E-04 Unit 1 Data Unit 2 Data Action Level Enclosure 2

Emergency Diesel Generator Enclosure 2

NRC Performance Indicators - Hatch NRC PI - Mitigating System Performance Index, High Pressure Injection System 1.0E-07 Green 1.0E-06 Mitigating System Performance Index 1.0E-06 White > 1.0E-06 OR PLE = Yes 1.0E-05 (MSPI) Value Yellow > 1.0E-05 1.0E-04 Red > 1.0E-04 1.0E-03 Jan-06 Feb-06 Mar-06 Apr-06 May-06 Jun-06 Jul-06 Aug-06 Sep-06 Oct-06 Nov-06 Dec-06 Jan-07 Feb-07 Mar-07 Apr-07 May-07 Jun-07 Rolling 36 Month Values Green 1.0E-06 White > 1.0E-06 OR PLE = Yes Yellow > 1.0E-05 Red > 1.0E-04 Unit 1 Data Unit 2 Data Action Level Enclosure 2

Site Vice President Reorganization Enclosure 2

Site Vice President Reorganization - January 2007 J. B. BEASLEY, JR.

Chairman, President & Chief Executive Officer S. A. MITCHELL Asst. Corp. Sec./Exec.

Asst. to Pres./Asst. Treas.

K. S. KING D. H. JONES M. M. CASTON J. T. GASSER R. A. BELL* J. A. MILLER CFO & Vice President Engineering General Counsel, Executive Vice President Human Res. Sr. VP Senior Vice President VP External Affairs &

Corporate Services Vice President Corporate Secretary & Chief Nuclear Officer Southern Company Nuclear Development J. G. WOLFE B. J. GEORGE A. F. THORNHILL W. D. DRINKARD Vogtle 3&4 Comptroller & Managing Atty. & Quality Assurance L. M. STINSON Nuclear Licensing Treasurer Manager Compliance Manager Manager Fleet Operations Support Bellefonte Vice President C. D. COLLINS B. E. HUNT C. H. PHILLIPS Supply Chain Nuclear Fuels Public Affairs Manager General Manager Manager P. R. BIZJAK J. M. GODFREY D. P. BURFORD W. L. Nuclear Fleet Security Safety & Health BURMEISTER Environmental Affairs Manager Manager and Emergency Plant Support Preparedness Manager Manager VACANT

  • P. A. HURST H. R. Director A. HARRIS Corporate Concerns W. B. THIGPEN W. H. LEE Engineering Supervisor Security Emergency Planning Services Manager Supervisor/Access Supervisor Authorization G. K. McELROY Engineering Admin.

Services Manager J. R. JOHNSON T. E. TYNAN D. R. MADISON J. B. PAPPAS Vice President - Farley Vice President - Vogtle Vice President - Hatch Configuration Management Manager W. L. BARGERON T. L. YOUNGBLOOD S. M. DOUGLAS M. J. AJLUNI Plant Manager Site Support Plant Manager Site Support Manager Manager C. R. DEDRICKSON J. D. WILLIAMS Plant Manager Site Support Manager 0407

  • SCS Employee Enclosure 2

Fleet Operations Support (proposed)

Fleet Ops VP Assistant Fleet Fleet Fleet Outage Fleet Chem / Fleet Security & Fleet Training &

Operations Maintenance /

Manager HP Manager EP Manager PI Manager Manager WC Manager Operations Maintenance/ NFS Outage Staff HP Staff *** Admin Asst Admin Asst

  • CAPCO Staff WC Staff Coordinator Security EP Training Chem Staff
  • PI Staff Supervisor Supervisor Supervisor *
  • Transfer from Engineering
    • Transfer from Supply Chain
      • Transfer from Environmental Security Staff EP Staff Instructors /

Staff * / **

Enclosure 2

Site Engineering (proposed)

New or Modified Org.

Site VP Plant Mgr. Engineering Mgr. *** Site Suppt. Mgr.

      • Dotted line reporting to Chief Performance Admin. Asst Engineer Improvement
  • EFIN
  • Design Chg. (Corp)
  • Mech/Civil (Corp) Principal Engineer -
  • Elec/I &C (Corp)

Design Engineering Support Licensing **

    • Dotted line Modifications PMMS Nuc. Systems Programs reporting to Corporate Licensing
  • Mech & Civil BOP Systems Elec./I & C Design
  • Elec/I & C Equipment Reliability Design Enclosure 2

Topical Updates Enclosure 2

SNM Update

  • Procedure revisions implemented to upgrade SNM accountability practices for in-core detectors following conclusion of SNM retrieval activities last year
  • Initial results indicated that 4 in-core detectors were not at the location specified
  • All 4 detectors were subsequently located and accounted for
  • Fuel pool legacy cleanup scheduled 3rd/4th quarter 2007 Enclosure 2

Tritium Sampling

  • Update on tritium graphs (T12, NW10, N008A)
  • Mactec Status

- Phase 2 Report (2007)

- Complete hydrology study (determine need)

  • Unit 2 CST pipe Replacement Update Enclosure 2

H3 pCi / L Fe b-03 1.00E+03 1.00E+04 1.00E+05 1.00E+06 1.00E+07 M

ay

-0 3

Au g-0 3 No v-03 M

ar

-0 4

Ju n-04 Se p-Tritium Sampling 04 Ja n-05 Ap r- 0 T12 5 Ju SAMPLE WELL T12 l- 0 5

O ct

-0 5

Fe b-06 M

ay

-0 6

Au g-0 6 De c-06 M

ar

-0 7

Ju n-07

Tritium Sampling Tritium Outfall Sample (Subsurface drain N008A) 1.00E+05 H3 pCi / L 1.00E+04 1.00E+03

/0 6 /0 6 /0 6 /0 6 /0 7 /0 7 /0 7 /0 7

/0 1 /0 1 /0 1 /0 1 /0 1 /0 1 /0 1 /0 1 05 07 09 11 01 03 05 07 1Y22N008A Enclosure 2

Tritium Sampling SAMPLE WELL (NW10) 1.70E+05 1.50E+05 1.30E+05 H3 pCi/ L 1.10E+05 9.00E+04 7.00E+04 5.00E+04 3.00E+04 1.00E+04 10/9/2006 11/9/2006 12/9/2006 1/9/2007 2/9/2007 3/9/2007 4/9/2007 5/9/2007 6/9/2007 7/9/2007 8/9/2007 NW10 Enclosure 2

1A RHR Pump Vibration

  • Vibration observed on 1A RHR pump only during two pump flow in Division 1 (Pumps A & C)
  • Occurs only in loop flow range of 4000 - 6000 gpm
  • Cause of vibration has not been determined
  • Conceptual design being developed to increase natural frequency of the loop Enclosure 2

Alternative Source Term

  • Full scope AST analysis submitted to NRC 8/29/2006
  • Control room inleakage testing showed good results, well within interim licensing basis limits
  • Approval of AST submittal required by 5/31/2010
  • Significant interdisciplinary review at NRR is in progress
  • Planned and potential modifications to support AST are scheduled to complete by spring 2010 Enclosure 2

Staffing

  • Pipeline Replenishment

- Strategies for hiring entry level workers and engineers

- License classes

  • 8 candidates to finish this December
  • 10 SRO candidates started June 2007
  • 16 candidates to start March 2008
  • 16 candidates to start March 2009
  • Average class size of 16

- All other initial programs up and running (Chemistry, HP, Maintenance, etc.)

Enclosure 2

Steam Chase Grating Analyses

  • Tool boxes were staged over grated vent openings between Reactor Building steam pipe chase and torus room
  • Hinged vent covers were strapped to vent grating on Unit 2
  • Tool boxes were removed from grating on both units and strap was removed on Unit 2 Enclosure 2

Tool Box Enclosure 2

Steam Chase Grating Analyses

  • Unit 1 limiting parameter is differential pressure on wall between torus room and ECCS pump rooms
  • Unit 1 analysis demonstrated that as-found vent paths provided adequate opening to meet differential pressure limits
  • Unit 2 limiting parameter is differential pressure on wall between torus room and reactor building ground level floor
  • Unit 2 analysis is at the preliminary results stage (not checked)
  • Preliminary results indicate that correcting for mass flow conservatisms will result in differential pressures within the analyzed limits Enclosure 2

TSC HVAC Availability

  • Event represents good incorporation of corrective actions from 2005 TSC white finding
  • EP and work planning personnel discussed work activity during planning phase
  • Work was placed on hold when first phase took longer than expected so issue could be discussed with NRC Region II personnel
  • Region II provided timely feedback regarding SNCs planned course of action Enclosure 2

Planned Major Projects Enclosure 2

Unit 1 Main Transformer Replacement

- Asset management/Life Cycle management

- Replaces leased Alabama Power transformer with permanent transformer

- Spare transformer delivered early 2008 for infant mortality issue

- New transformer good to end of plant life Enclosure 2

Shroud Tie Rod Upper Restraints

  • Unit 1 Shroud tie rod upper restraint replacement (2008)
  • Unit 2 Shroud tie rod upper restraint replacement (2009)

- Equipment reliability/safety

- Replaces upper supports with larger components to remove susceptibility to IGSCC

- Restores to BWRVIP criteria for repaired shrouds

- Eliminates need to re-inspect shroud horizontal welds

- Licensing submittal for Unit 1 has been issued Enclosure 2

Condenser Bypass Sparger Replacement

  • Unit 1 and Unit 2 Condenser bypass sparger replacements (Unit 1 in 2008. Unit 2 in 2009)

- Replaces degraded bypass spargers

- Spargers currently limit Operations use of bypass (i.e., length of time in Hot shutdown)

Enclosure 2

Adjustable Speed Drives

  • Adjustable speed drives (Unit 1 in 2010 and Unit 2 in 2011)

- Asset management/Life Cycle management

- Replaces the Recirculation M-G sets with Variable Frequency drives

- Eliminates Recirculation flow step changes from fluid coupling positioner

- Does not eliminate step changes from Bi-stable flow

- Equipment reliability Enclosure 2

Feedwater Sparger End Pins

  • Feedwater sparger end pin replacement (Unit 1 in 2008, no Unit 2 installation)
  • Remote tooling will allow the installation of the Feedwater Sparger End Pins simultaneously with other work activities on the refueling floor Enclosure 2

Completed Major Projects Enclosure 2

Mark VI Turbine Controls

  • Unit 1 and Unit 2 Mark VI Turbine Controls

- Completed on both units

- Asset management/Life Cycle management

- Installs triple redundant digital controls

- Replaces obsolete Mark I control system Enclosure 2

Unit 2 Generator Exciter Controls

- Completed on Unit 2 - Unit 1 to complete in 2008)

- Asset management/Life Cycle management

- Replaces obsolete exciter with EX 2100 alterex Enclosure 2

Condenser Bellows Replacement

  • Unit 1 and Unit 2 Condenser Bellows Replacement

- Completed on both units

- Equipment reliability - Industry OE

- Replaced bellows that were beyond design life Enclosure 2

Unit 1 Drywell Cooler Replacement

  • Unit 1 Drywell Cooler Replacement

- Equipment reliability

- 2005 shutdown due to drywell leakage and containment integrity issue (leak from drywell into cooler)

- Replaced all 16 Drywell cooler coils Enclosure 2

Open Discussion Enclosure 2

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