IR 05000269/2018001
| ML18123A311 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 05/03/2018 |
| From: | Frank Ehrhardt NRC/RGN-II/DRP/RPB1 |
| To: | Burchfield J Duke Energy Corp |
| References | |
| IR 2018001 | |
| Download: ML18123A311 (15) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION May 3, 2018
SUBJECT:
OCONEE NUCLEAR STATION - NRC INTEGRATED INSPECTION REPORT 05000269/2018001, 050000270/2018001, AND 05000287/2018001
Dear Mr. Burchfield:
On March 31, 2018, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at your Oconee Nuclear Station Units 1, 2 and 3. On April 12, 2018, the NRC inspectors discussed the results of this inspection with you and other members of your staff. The results of this inspection are documented in the enclosed report. The NRC inspectors did not identify any finding or violation of more than minor significance.
This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with 10 CFR 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely,
/RA Jannette Worosilo Acting for/
Frank Ehrhardt, Chief Reactor Projects Branch 1 Division of Reactor Projects Docket Nos.: 50-269, 50-270, 50-287 License Nos.: DPR-38, DPR-47, DPR-55
Enclosure:
IR 05000269/2018001, 05000270/2018001, and 05000287/2018001
Inspection Report
Docket Numbers: 50-269, 50-270, 50-287 License Numbers: DPR-38, DPR-47, DPR-55 Report Numbers: 05000269/2018001, 05000270/2018001, and 05000287/2018001 Enterprise Identifier: I-2018-001-0060 Licensee: Duke Energy Carolinas, LLC Facility: Oconee Nuclear Station, Units 1, 2, and 3 Location: Seneca, SC Inspection Dates: January 1, 2018 to March 31, 2018 Inspectors: E. Crowe, Senior Resident Inspector N. Childs, Resident Inspector J. Parent, Resident Inspector Approved By: F. Ehrhardt, Chief Reactor Projects Branch 1 Division of Reactor Projects Enclosure
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring licensee performance by conducting a quarterly baseline inspection at Oconee Nuclear Station Units 1, 2, and 3 in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information. No findings were identified during this inspection period.
PLANT STATUS
Unit 1 operated at or near 100 percent rated thermal power (RTP) for the entire inspection period.
Unit 2 operated at or near 100 percent RTP for the entire inspection period.
Unit 3 operated at or near 100 percent RTP for the entire inspection period.
INSPECTION SCOPES
Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared complete when the IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter 2515, Light-Water Reactor Inspection Program -
Operations Phase. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.
REACTOR SAFETY
71111.01 - Adverse Weather Protection Seasonal Extreme Weather
The inspectors evaluated readiness for seasonal extreme weather conditions prior to the onset of seasonal cold temperatures.
Impending Severe Weather (1 Sample)
The inspectors evaluated readiness for impending adverse weather conditions for freezing rain and extreme cold from January 2, 2018, through January 7, 2018.
71111.04 - Equipment Alignment Partial Walkdown
The inspectors evaluated system configurations during partial walkdowns of the following systems/trains:
- (1) Unit 1, 2, and 3 emergency feedwater system, auxiliary service water system, and low pressure service water system alignment during planned protected service water primary and booster pump tests on February 2, 2018
- (2) Unit 1, 2, and 3 4160kV safety related electrical distribution systems, standby feeder buses, Lee combustion turbine alignment during planned maintenance to transformer CT-4 on February 6, 2018
- (3) Unit 1, 2, and 3 13.8kV safety related electrical distribution system (underground path)alignment during planned maintenance on Keowee Unit 2 on February 13, 2018
- (4) Unit 1, 2, and 3 safety-related electrical distribution system alignment and Keowee Hydro Unit-1 during annual maintenance outage of standby shutdown facility (SSF) on February 20-23, 2018
- (5) Unit 1, 2, and 3 control room ventilation alignment during troubleshooting of B chiller failure to run on March 11, 2018
Complete Walkdown (1 Sample)
The inspectors evaluated system configurations during a complete walkdown of the primary instrument air system on March 26, 2018.
71111.05AQ - Fire Protection Annual/Quarterly Quarterly Inspection
The inspectors evaluated fire protection program implementation in the following selected areas:
- (1) Fire Zone 29 - Unit 3 turbine building 4160V switchgear on January 12, 2018
- (2) Fire Zone 33 - Unit 2 turbine building 4160V switchgear on January 12, 2018
- (3) Fire Zone KHS-001 - Keowee hydro station on February 8, 2018
- (4) Fire Zone 53 - Unit 1 & Unit 2 low pressure injection/reactor building spray pump room on February 14, 2018
- (5) Fire Zone 57 - Unit 1 purification and deborating demineralizers on February 14, 2018
Annual Inspection (1 Sample)
The inspectors evaluated fire brigade performance on January 12, 2018.
71111.06 - Flood Protection Measures Cables
The inspectors evaluated cable submergence protection in CT5 trench on March 15, 2018.
71111.07 - Heat Sink Performance Heat Sink
The inspectors evaluated the SSF diesel generator jacket water heat exchangers (A and B)performance in January 2018
71111.11 - Licensed Operator Requalification Program and Licensed Operator Performance Operator Requalification
The inspectors observed and evaluated an in-progress annual requalification operating test on
===March 7, 2018.
Operator Performance (1 Sample)===
The inspectors observed and evaluated a Unit 1 power reduction in support of performing a turbine valve movement test on March 23, 2018.
71111.12 - Maintenance Effectiveness Routine Maintenance Effectiveness
The inspectors evaluated the effectiveness of routine maintenance activities associated with the following equipment and/or safety significant functions:
- (1) Units 1, 2, and 3 air handling unit flow limiting valve (0LPSW-846) catastrophic failure due to a water hammer event
71111.13 - Maintenance Risk Assessments and Emergent Work Control
The inspectors evaluated the risk assessments for the following planned and emergent work activities:
- (1) Yellow risk changed to green risk condition on Units 1, 2, and 3 during planned testing of the protected service water primary and booster pumps on February 1, 2018
- (2) Green risk condition on Units 1, 2, and 3 during planned maintenance on transformer CT-4 on February 6, 2018
- (3) Yellow risk condition on Unit 1 during emergent issue (water in lubricating oil) of turbine driven emergency feedwater pump on February 13, 2018
- (4) Yellow risk condition on Units 1, 2, and 3 during annual maintenance outage of SSF on February 20 - 23, 2018
- (5) Projected Yellow risk on Unit 3 during planned SSF monthly outage along with planned replacement of PCB-33 (autobank tie to 230kV yellow bus) and 3A LPI pump preventive maintenance on March 20, 2018
71111.15 - Operability Determinations and Functionality Assessments
The inspectors evaluated the following operability determinations and functionality assessments:
- (1) Unit 1, SSF reactor coolant makeup pump tripped during performance test on January 3, 2018
- (2) Unit 1, turbine driven emergency feedwater pump turbine inboard seal cavity full of water on February 13, 2018
- (3) Units 1, 2, and 3 low pressure service water (LPSW) valves LPSW 1111 and 1116 condition monitoring requirements not met on February 19, 2018
- (4) Unit 3 low pressure injection piping variable load spring support out of tolerance on February 21, 2018
- (5) Units 1, 2, and 3 SSF air handling unit (0-42) oil differential pressure higher than normal on February 22, 2018
- (6) Units 1, 2, and 3 SSF diesel generator overspeed test failures on February 23, 2018
- (7) Unit 2, main feeder bus normal feeder electrical breaker N2-1 charging spring motor continuously operating on March 6, 2018
- (8) Unit 3, reactor protection system Channel C watchdog timer failure in central processing unit 3311 on March 7, 2018
71111.19 - Post Maintenance Testing
The inspectors evaluated the following post-maintenance tests:
- (1) PT/0/A/0610/022, Degraded Grid and Switchyard Isolation Test on January 10, 2018
- (2) PT/1/A/0600/012, Turbine Driven Emergency Feedwater Pump Test following draining of oil with high water content on February 14, 2018
- (3) PT/2/A/0150/057, RB Pressure Switches and Associated Transmitters Leak Rate Test following replacement of 2BS-PT-0230 on February 15, 2018
- (4) PT/2/A/0150/057, RB Pressure Switches and Associated Transmitters Leak Rate Test following replacement of 2BS-PT-0231 on February 16, 2018
- (5) OP/0/A/1600/009 SSF Auxiliary Service Water System Test following annual maintenance on February 24, 2018
- (6) PT/0/A/0600/021, Standby Shutdown Facility Diesel-Generator Operation following annual maintenance on February 24, 2018
- (7) PT/2/A/0152/035, 2PSW-22 and 2PSW-24 Valve Stroke Test following 2PSW-22 actuator replacement on March 14, 2018
- (8) OP/0/A/1600/010, SSF Diesel-Generator Operational Test following troubleshooting and relay replacements on March 23, 2018
71111.22 - Surveillance Testing The inspectors evaluated the following surveillance tests: Routine
- (1) IP/0/A/3000/003 KB1, Keowee Hydro Station Battery 1 Service Test and Annual Surveillance, conducted on January 10, 2018
- (2) PT/2/A/0600/012, Turbine Driven Emergency Feedwater Pump Test, conducted on January 31, 2018
- (3) PT/0/A/0500/001, Protected Service Primary and Booster Pump Test, conducted on February 1, 2018
- (4) PT/3/A/0202/011, High Pressure Injection Pump Test, conducted on February 7, 2018
- (5) IP/0/A/4980/081 E, ABB Type 81 Relay Test, performed on Keowee Unit 2 relay K2ELK-RL-81X2, conducted on February 13, 2018
- (6) IP/0/A/4980/081 E, ABB Type 81 Relay Test, performed on Keowee Unit 2 relay K2ELK-RL-81Y2, conducted on February 13, 2018
In-service (1 Sample)
- (1) PT/1/A/0204/007, Reactor Building Spray Pump Test, conducted on January 16, 2018
Reactor Coolant System Leak Detection (1 Sample)
- (1) PT/1/A/0600/010, Reactor Coolant Leakage (Unit 1), on January 18, 2018
71114.06 - Drill Evaluation Drill/Training Evolution
The inspectors evaluated an emergency preparedness drill which involved an increase in radiological levels in the central alarm station and a Unit 2 trip which was caused by a loss of 125 VDC power, all resulting in a site area emergency being declared on January 19,
OTHER ACTIVITIES - BASELINE
71151 - Performance Indicator Verification The inspectors verified licensee performance indicator submittals listed below for the period from March 2017 through March 2018.
- (1) Unplanned Scrams per 7000 Critical Hours
- (2) Unplanned Power Changes per 7000 Critical Hours
- (3) Unplanned Scrams with Complications
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
The inspectors confirmed that proprietary information was controlled to protect from public disclosure.
- On April 12, 2018, the inspector presented the inspection results to Mr. J. Ed Burchfield, and other members of the licensee staff.
DOCUMENTS REVIEWED
71111.01: Adverse Weather Protection
Nuclear Condition Report
2169114; 02174700
Procedures
OP/0/A/1104/037, Plant Heating, Rev. 004
OP/0/A/1104/041, Auxiliary Building Ventilation, Rev. 041
OP/0/A/1106/041, Turbine Building Ventilation, Rev. 007
OP/0/A/1600/002, Standby Shutdown Facility Heating, Ventilation and Air Conditioning System
Operation (HVAC), Rev. 037
OP/0/B/1104/050, Weather Related Activities, Rev. 005
OP/1/A/1104/051, ESV System, Rev. 028
OP/2/A/1104/051, ESV System, Rev. 040
OP/3/A/1104/051, ESV System, Rev. 028
PT/0/A/0110/017, Cold Weather Protection, Rev. 013
RP/0/A/1000/035, Severe Weather Preparations, Rev. 003
Work Orders/Requests
20091981; 20157474
71111.04: Equipment Alignment
Documents
AD-OP-ALL-0201, Protected Equipment, Rev. 3
OSS-0254.00-00-1021, Design Basis Specification for the Control Room Ventilation System
Oconee Nuclear Site Technical Specifications, amended August 13, 2014
Oconee Nuclear Site Technical Specifications Bases, updated June 3, 2011
OC-SSS-IA-14, Compressed Air Composite, dated April 15, 2009
Drawings
O-0705, Rev. 104
O-1705, Rev. 87
O-2705, Rev. 87
OFD-166J-1.2, Rev 15
OFD-116J-1.5, Rev. 24
OFD-116J-1.6, Rev 20
OFD-121D-1.1, Rev. 38
OFD-121D-2.1, Rev. 39
OFD-121D-3.1, Rev. 46
OFD-124A-1.2, Rev 55
OFD-124B-1.1, Rev. 67
OFD-124B-2.1, Rev. 76
OFD-124B-3.1, Rev. 61
OFD-133A-2.5, Rev. 58
OFD-137B-1.1, Rev. 26
OFD-137B-1.2, Rev. 27
OFD-144A-1.1, Rev. 16
OFD-144A-1.2, Rev. 15
OFD-144A-1.3, Rev. 10
OFD-144A-1.4, Rev. 10
Enclosure
Nuclear Condition Report
2114841; 02119628; 02137156; 02138440; 02139231; 02149244; 02162787
Procedures
MP/0/A/3007/054 A, Chillers - A and B - York - Codepak - Preventive Maintenance (QA-5),
Rev. 034
OP/0/A/1106/019, Keowee Hydro at Oconee, Rev. 104
OP/A/1106/027, Instrument Air System, Rev. 120
PT/0/A/0500/001, Protected Service Water Primary and Booster Pump Test, Rev. 003
PT/0/A/0620/009, Keowee Hydro Operation, Rev. 052
Work Orders/Requests
20085997; 20095495; 20104045; 20104322; 20112663; 20118654; 20126636; 20182563;
20185924; 20192286; 20208815; 20220075
71111.05AQ: Fire Protection
Documents
Oconee Nuclear Station Fire Brigade Drill, Drill # 2 Main Power Battery - 1A
Nuclear Condition Report
2174700; 02176943
Other
O-FS-0-OC-9000-003, Pre-Fire Plan for Keowee Hydro Station, Rev. 1
O-FS-1-AB-9758-001, Pre-Fire Plan for Unit 1 & 2 Auxiliary Building Elevation 758, Rev. 002
O-FS-1-AB-9783-001, Pre-Fire Plan for Unit 1 Auxiliary Building Elevation 783, Rev. 002
O-FS-2-TB-9796-001, Pre-Fire Plan for Unit 2 Turbine Building Elevation 796, Rev. 001
O-FS-3-TB-9796-001, Pre-Fire Plan for Unit 3 Turbine Building Elevation 796, Rev. 001
Procedures
AD-HU-ALL-0003, Conduct of Pre-Job Brief and Post-Job Critiques, Rev. 5
AD-OP-ALL-0207, Fire Brigade and Hazmat Team Administrative Controls, Rev. 0
AD-RP-ALL-6002, Inspections of Self-Contained Breathing Apparatus (SCBA) and Associated
Equipment, Rev. 0
PT/0/A/0250/025, HPSW Pump and Fire Protection Flow Test, Rev. 065
PT/0/B/2000/050, Fire Drill - Performance and Evaluation, Rev. 002
RP/0/A/1000/001, Emergency Classification, Rev. 006
71111.06: Internal Flood Protection
Nuclear Condition Report
01857433; 02122484
Procedures
TE-MN-ALL-0002, Foreign Material Exclusion Level and Controls Screening, Rev. 1
Work Orders/Requests
234895
Enclosure
71111.07: Heat Sink Performance
Calculations
OSC-3767, Diesel Jacket Water Heat Exchanger and Diesel Lube Oil Cooler Tube Plugging
Evaluation, Rev. 5
Nuclear Condition Report
01852472; 01853633; 01906254; 02174289
Other
2017 SSF Diesel and Support Systems Health Reports
DJWHX-000A Eddy Current Inspection Report - INAGE0715, dated July 14, 2015
DJWHX-000B Eddy Current Inspection Report - INAGE0715, dated July 14, 2015
Maintenance Rule Function Scoping Document for function DJW.3, Provide jacket cooling for
the SSF diesel generator, printed February 12, 2018
Maintenance Rule Function Scoping Document for function SSF+.1, Provides an independent
emergency source of electrical power, printed February 12, 2018
OSS-0254.00-00-1008, Design Basis Specification for the Standby Shutdown Facility Diesel
Support System, Rev. 48
Procedures
AD-EG-ALL-1210, Maintenance Rule Program, Rev. 1
Work Orders/Requests
210310; 02151607; 02151608
71111.11: Licensed Operator Requalification
Documents
ASE-4B, Active Simulator Exam, Rev. 01
Procedures
PT/1/A/0290/003, Turbine Valve Movement, Rev. 015
Work Orders/Requests
220083
71111.12: Maintenance Effectiveness
Documents
ONS LPSW 846 Metallurgy File #5773, Nuclear Generation Metallurgy Evaluation of
catastrophic failure of 0LPSW-846
LPSW System Health Report
Nuclear Condition Report
2163493
Work Orders/Requests
71111.13: Risk Assessments
Documents
AD-EG-ALL-1004, Conduct of Probabilistic Risk Analysis Engineering, Rev. 2
AD-NF-ALL-0501, Electronic Risk Assessment Tool (ERAT), Rev. 1
Enclosure
AD-NF-NGO-0502, Probabilistic Assessment (PRA) Model Technical Adequacy, Rev. 2
Oconee Projected ERAT Risk Profile - 18W5, February 1, 2018
Oconee Projected ERAT Risk Profile - 18W12, March 20, 2018
Nuclear Condition Report
2192623; 02192755
Procedures
MP/0/A/3009/017 A, Visual Inspection and Electrical Motor Tests Using Baker Equipment, Rev.
2
PT/0/A/0500/001, Protected Service Water Primary and Booster Pump Test, Rev. 003
Work Orders/Requests
20182563; 20188353; 20208815
71111.15: Operability Evaluations
Documents
OSS-0254.00-00-1008, Design Basis Specification for the Standby Shutdown Facility Diesel
Support System, Rev 048
OSS-0254.00-00-1009, Design Basis Specification for the Standby Shutdown Facility HVAC
System, Rev 023
OSS-0254.00-00-1028, Design Basis Specification for the Low Pressure Injection and Core
Flood System, Rev 054
OSS-0254.00-00-1039, Design Basis Specification for the Low Pressure Service Water System,
Rev 49
OSS-0254.00-00-2014, Design Basis Specification for the 4160/600/120V SSF Essential AC
Power System, Rev 015
Drawings
OEE-151-39, Elementary Diagram Reactor Coolant Makeup Pump MT
- R. Controls, Rev. 8
OEE-151-39A, Elementary Diagram Reactor Coolant Make-up Pump MT
- R. Controls, Rev. 13
Nuclear Condition Report
01839593; 02089372; 02174814; 02184118; 02184186; 02186273; 02186649; 02185787;
2186961; 02187007; 02187046; 02189331; 02189530
Procedures
PT/1/A/0400/007, SSF RC Makeup Pump Test, Rev. 069
Work Orders/Requests
20057206; 20057256; 20094672; 20222643
71111.19: Post-Maintenance Testing
Documents
OSS-0254.00-00-1008, Design Basis Specification for the Standby Shutdown Facility Diesel
Support System, Rev 048
OSS-0254.00-00-1009, Design Basis Specification for the Standby Shutdown Facility HVAC
System, Rev 023
OSS-0254.00-00-2014, Design Basis Specification for the 4160/600/120V SSF Essential AC
Power System, Rev 015
Enclosure
Drawings
OP-OC-EL-EPD-2, Electrical Distribution, Rev. 2
Nuclear Condition Report
01780746; 02175226; 02176057; 02184401; 02186649; 02186961; 02187007; 02187046
Other
Procedures
IP/0/A/0100/001, Controlling Procedure for Troubleshooting and Corrective Maintenance, Rev
OP/0/A/1600/009, SSF Auxiliary Service Water System, Rev 037
OP/0/A/1600/010, Operation of the SSF Diesel-Generator, Rev 094
PT/0/A/0400/011, SSF Diesel Generator Test, Rev 015
PT/0/A0400/012, Diesel Air System Check Valve Test, Rev 012
PT/0/A/0600/020, Standby Shutdown Facility Instrument Surveillance, Rev 024
PT/0/A/0600/021, Standby Shutdown Facility Diesel-Generator Operation, Rev 016
PT/0/A/0600/023, Standby Shutdown Facility Oil Inventory, Rev 007
PT/0/A/0610/022, Degraded Grid and Switchyard Isolation Test, Rev. 039
PT/2/A/0150/057, RB Pressure Switches and Associated Transmitters Leak Rate Test, Rev.
015
PT/2/A/0152/035, 2PSDW-22 and 2PSW-24 Valve Stroke Test, Rev 6
Work Orders/Requests
20070988; 20101110; 20104802; 20104803; 20126932
71111.22: Surveillance Testing
Nuclear Condition Report
2178024; 02185270
Other
OP/0/B/1106/033, Primary System Leak Identification, completed February 21, 2018
PT/1/A/0600/010, Reactor Coolant Leakage (Unit 1), completed January 18, 2018
Procedures
IP/0/A/3000/003 BK1, Keowee Hydro Station Battery 1 Service Test and Annual Surveillance,
Rev 004
IP/0/A/3000/026, Battery Cell Connection Resistance Test, Rev 044
IP/0/A/4980/081 E, ABB Type 81 Relay Test, Rev. 015
PT/0/A/0500/001, Protected Service Water Primary and Booster Pump Test, Rev. 003
PT/0/A/0620/009, Keowee Hydro Operation, Rev. 052
PT/1/A/0204/007, Reactor Building Spray Pump Test, Rev. 104
PT/2/A/0600/012, Turbine Driven Emergency Feedwater Pump Test, Rev. 095
PT/3/A/0202/011, High Pressure Injection Pump Test, Rev 091
Work Orders/Requests
20185924-01; 20185924-02; 20220075-03
Enclosure
71114.06: Drill Evaluation
Documents
AD-EP-ALL-0105, Activation and Operation of the Technical Support Center, Rev. 1
AD-EP-ALL-0106, Activation and Operation of the Operations Support Center, Rev. 1
AD-EP-ALL-0803, Evaluation and Critique of Drills and Exercises, Rev. 3
AD-EP-ONS-0105, ONS Site Specific TSC Support, Rev. 000
AD-EP-ONS-0106, ONS Site Specific OSC Support, Rev. 000
Other
FAD-ON-EP-EAL-EALMatrix, Oconee Nuclear Station Wallchart, Rev. 000
Oconee Nuclear Station Drill 18-01, dated January 19, 2018
Procedures
AP/2/A/1700/014, Loss of Normal HPI Makeup and/or RCP Seal Injection, Rev. 014
AP/2/A/1700/023, Loss of ICS Power, Rev. 023
PT/0/A/2000/008, Procedure to Verify the Availability of Supplies and Equipment in the
Emergency Response Facilities, Rev. 000
RP/0/A/1000/001, Emergency Classification, Rev. 006
RP/0/A/1000/009, Procedure for Site Assembly, Rev. 003
RP/0/A/1000/015 A, Offsite Communications for the Control Room, Rev. 009
71151: Performance Identification Verification
Documents
Unit 1 station logs covering period of March, 2017 through March, 2018
Unit 2 station logs covering period of March, 2017 through March, 2018
Unit 3 station logs covering period of March, 2017 through March, 2018
Enclosure
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION II
245 PEACHTREE CENTER AVENUE NE, SUITE 1200
ATLANTA, GEORGIA 30303-1257
May 3, 2018
Mr.
- J. Ed Burchfield, Jr.
Site Vice President
Duke Energy Corporation
Oconee Nuclear Station
7800 Rochester Highway
Seneca, SC 29672
SUBJECT: OCONEE NUCLEAR STATION - NRC INTEGRATED INSPECTION REPORT
05000269/2018001, 050000270/2018001, AND 05000287/2018001
Dear Mr. Burchfield:
On March 31, 2018, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection
at your Oconee Nuclear Station Units 1, 2 and 3. On April 12, 2018, the NRC inspectors
discussed the results of this inspection with you and other members of your staff. The results of
this inspection are documented in the enclosed report. The NRC inspectors did not identify any
finding or violation of more than minor significance.
This letter, its enclosure, and your response (if any) will be made available for public inspection
and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document
Room in accordance with 10 CFR 2.390, Public Inspections, Exemptions, Requests for
Withholding.
Sincerely,
/RA Jannette Worosilo Acting for/
Frank Ehrhardt, Chief
Reactor Projects Branch 1
Division of Reactor Projects
Docket Nos.: 50-269, 50-270, 50-287
License Nos.: DPR-38, DPR-47, DPR-55
Enclosure:
IR 05000269/2018001, 05000270/2018001,
and 05000287/2018001
cc: Distribution via ListServ
OFFICE RII:DRP RII:DRP RII:DRP RII:DRP RII:DRP RII:DRP
NAME ECrowe NChilds JParent MToth JWorosilo FEhrhardt
DATE 5/3/2018 4/27/2018 5/3/2018 4/27/2018 4/26/2018 4/27/2018
U.S. NUCLEAR REGULATORY COMMISSION
Inspection Report
Docket Numbers: 50-269, 50-270, 50-287
License Numbers: DPR-38, DPR-47, DPR-55
Report Numbers: 05000269/2018001, 05000270/2018001, and 05000287/2018001
Enterprise Identifier: I-2018-001-0060
Licensee: Duke Energy Carolinas, LLC
Facility: Oconee Nuclear Station, Units 1, 2, and 3
Location: Seneca, SC
Inspection Dates: January 1, 2018 to March 31, 2018
Inspectors:
- E. Crowe, Senior Resident Inspector
- N. Childs, Resident Inspector
- J. Parent, Resident Inspector
Approved By:
- F. Ehrhardt, Chief
Reactor Projects Branch 1
Division of Reactor Projects
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring licensee performance by
conducting a quarterly baseline inspection at Oconee Nuclear Station Units 1, 2, and 3 in
accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs
program for overseeing the safe operation of commercial nuclear power reactors. Refer to
https://www.nrc.gov/reactors/operating/oversight.html for more information. No findings were
identified during this inspection period.
Enclosure
PLANT STATUS
Unit 1 operated at or near 100 percent rated thermal power (RTP) for the entire inspection
period.
Unit 2 operated at or near 100 percent RTP for the entire inspection period.
Unit 3 operated at or near 100 percent RTP for the entire inspection period.
INSPECTION SCOPES
Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in
effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with
their attached revision histories are located on the public website at http://www.nrc.gov/reading-
rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared
complete when the IP requirements most appropriate to the inspection activity were met
consistent with Inspection Manual Chapter 2515, Light-Water Reactor Inspection Program -
Operations Phase. The inspectors reviewed selected procedures and records, observed
activities, and interviewed personnel to assess licensee performance and compliance with
Commission rules and regulations, license conditions, site procedures, and standards.
REACTOR SAFETY
71111.01 - Adverse Weather Protection
Seasonal Extreme Weather (1 Sample)
The inspectors evaluated readiness for seasonal extreme weather conditions prior to the
onset of seasonal cold temperatures.
Impending Severe Weather (1 Sample)
The inspectors evaluated readiness for impending adverse weather conditions for freezing
rain and extreme cold from January 2, 2018, through January 7, 2018.
71111.04 - Equipment Alignment
Partial Walkdown (5 Samples)
The inspectors evaluated system configurations during partial walkdowns of the following
systems/trains:
(1) Unit 1, 2, and 3 emergency feedwater system, auxiliary service water system, and low
pressure service water system alignment during planned protected service water primary
and booster pump tests on February 2, 2018
(2) Unit 1, 2, and 3 4160kV safety related electrical distribution systems, standby feeder
buses, Lee combustion turbine alignment during planned maintenance to transformer
CT-4 on February 6, 2018
Enclosure
(3) Unit 1, 2, and 3 13.8kV safety related electrical distribution system (underground path)
alignment during planned maintenance on Keowee Unit 2 on February 13, 2018
(4) Unit 1, 2, and 3 safety-related electrical distribution system alignment and Keowee
Hydro Unit-1 during annual maintenance outage of standby shutdown facility (SSF) on
February 20-23, 2018
(5) Unit 1, 2, and 3 control room ventilation alignment during troubleshooting of B chiller
failure to run on March 11, 2018
Complete Walkdown (1 Sample)
The inspectors evaluated system configurations during a complete walkdown of the primary
instrument air system on March 26, 2018.
71111.05AQ - Fire Protection Annual/Quarterly
Quarterly Inspection (5 Samples)
The inspectors evaluated fire protection program implementation in the following selected
areas:
(1) Fire Zone 29 - Unit 3 turbine building 4160V switchgear on January 12, 2018
(2) Fire Zone 33 - Unit 2 turbine building 4160V switchgear on January 12, 2018
(3) Fire Zone KHS-001 - Keowee hydro station on February 8, 2018
(4) Fire Zone 53 - Unit 1 & Unit 2 low pressure injection/reactor building spray pump room
on February 14, 2018
(5) Fire Zone 57 - Unit 1 purification and deborating demineralizers on February 14, 2018
Annual Inspection (1 Sample)
The inspectors evaluated fire brigade performance on January 12, 2018.
71111.06 - Flood Protection Measures
Cables (1 Sample)
The inspectors evaluated cable submergence protection in CT5 trench on March 15, 2018.
71111.07 - Heat Sink Performance
Heat Sink (1 Sample)
The inspectors evaluated the SSF diesel generator jacket water heat exchangers (A and B)
performance in January 2018
71111.11 - Licensed Operator Requalification Program and Licensed Operator Performance
Operator Requalification (1 Sample)
The inspectors observed and evaluated an in-progress annual requalification operating test on
March 7, 2018.
Enclosure
Operator Performance (1 Sample)
The inspectors observed and evaluated a Unit 1 power reduction in support of performing a
turbine valve movement test on March 23, 2018.
71111.12 - Maintenance Effectiveness
Routine Maintenance Effectiveness (1 Sample)
The inspectors evaluated the effectiveness of routine maintenance activities associated
with the following equipment and/or safety significant functions:
(1) Units 1, 2, and 3 air handling unit flow limiting valve (0LPSW-846) catastrophic failure
due to a water hammer event
71111.13 - Maintenance Risk Assessments and Emergent Work Control (5 Samples)
The inspectors evaluated the risk assessments for the following planned and emergent
work activities:
(1) Yellow risk changed to green risk condition on Units 1, 2, and 3 during planned testing of
the protected service water primary and booster pumps on February 1, 2018
(2) Green risk condition on Units 1, 2, and 3 during planned maintenance on transformer
CT-4 on February 6, 2018
(3) Yellow risk condition on Unit 1 during emergent issue (water in lubricating oil) of turbine
driven emergency feedwater pump on February 13, 2018
(4) Yellow risk condition on Units 1, 2, and 3 during annual maintenance outage of SSF on
February 20 - 23, 2018
(5) Projected Yellow risk on Unit 3 during planned SSF monthly outage along with planned
replacement of PCB-33 (autobank tie to 230kV yellow bus) and 3A LPI pump preventive
maintenance on March 20, 2018
71111.15 - Operability Determinations and Functionality Assessments (8 Samples)
The inspectors evaluated the following operability determinations and functionality
assessments:
(1) Unit 1, SSF reactor coolant makeup pump tripped during performance test on January 3,
2018
(2) Unit 1, turbine driven emergency feedwater pump turbine inboard seal cavity full of water
on February 13, 2018
(3) Units 1, 2, and 3 low pressure service water (LPSW) valves LPSW 1111 and 1116
condition monitoring requirements not met on February 19, 2018
(4) Unit 3 low pressure injection piping variable load spring support out of tolerance on
February 21, 2018
(5) Units 1, 2, and 3 SSF air handling unit (0-42) oil differential pressure higher than normal
on February 22, 2018
Enclosure
(6) Units 1, 2, and 3 SSF diesel generator overspeed test failures on February 23, 2018
(7) Unit 2, main feeder bus normal feeder electrical breaker N2-1 charging spring motor
continuously operating on March 6, 2018
(8) Unit 3, reactor protection system Channel C watchdog timer failure in central processing
unit 3311 on March 7, 2018
71111.19 - Post Maintenance Testing (8 Samples)
The inspectors evaluated the following post-maintenance tests:
(1) PT/0/A/0610/022, Degraded Grid and Switchyard Isolation Test on January 10, 2018
(2) PT/1/A/0600/012, Turbine Driven Emergency Feedwater Pump Test following draining
of oil with high water content on February 14, 2018
(3) PT/2/A/0150/057, RB Pressure Switches and Associated Transmitters Leak Rate Test
following replacement of 2BS-PT-0230 on February 15, 2018
(4) PT/2/A/0150/057, RB Pressure Switches and Associated Transmitters Leak Rate Test
following replacement of 2BS-PT-0231 on February 16, 2018
(5) OP/0/A/1600/009 SSF Auxiliary Service Water System Test following annual
maintenance on February 24, 2018
(6) PT/0/A/0600/021, Standby Shutdown Facility Diesel-Generator Operation following
annual maintenance on February 24, 2018
(7) PT/2/A/0152/035, 2PSW-22 and 2PSW-24 Valve Stroke Test following 2PSW-22
actuator replacement on March 14, 2018
(8) OP/0/A/1600/010, SSF Diesel-Generator Operational Test following troubleshooting
and relay replacements on March 23, 2018
71111.22 - Surveillance Testing
The inspectors evaluated the following surveillance tests:
Routine (6 Samples)
(1) IP/0/A/3000/003 KB1, Keowee Hydro Station Battery 1 Service Test and Annual
Surveillance, conducted on January 10, 2018
(2) PT/2/A/0600/012, Turbine Driven Emergency Feedwater Pump Test, conducted on
January 31, 2018
(3) PT/0/A/0500/001, Protected Service Primary and Booster Pump Test, conducted on
February 1, 2018
(4) PT/3/A/0202/011, High Pressure Injection Pump Test, conducted on February 7, 2018
(5) IP/0/A/4980/081 E, ABB Type 81 Relay Test, performed on Keowee Unit 2 relay
K2ELK-RL-81X2, conducted on February 13, 2018
(6) IP/0/A/4980/081 E, ABB Type 81 Relay Test, performed on Keowee Unit 2 relay
K2ELK-RL-81Y2, conducted on February 13, 2018
In-service (1 Sample)
(1) PT/1/A/0204/007, Reactor Building Spray Pump Test, conducted on January 16, 2018
Reactor Coolant System Leak Detection (1 Sample)
(1) PT/1/A/0600/010, Reactor Coolant Leakage (Unit 1), on January 18, 2018
Enclosure
71114.06 - Drill Evaluation
Drill/Training Evolution (1 Sample)
The inspectors evaluated an emergency preparedness drill which involved an increase in
radiological levels in the central alarm station and a Unit 2 trip which was caused by a loss
of 125 VDC power, all resulting in a site area emergency being declared on January 19,
2018.
OTHER ACTIVITIES - BASELINE
71151 - Performance Indicator Verification
The inspectors verified licensee performance indicator submittals listed below for the period
from March 2017 through March 2018. (9 Samples)
(1) Unplanned Scrams per 7000 Critical Hours
(2) Unplanned Power Changes per 7000 Critical Hours
(3) Unplanned Scrams with Complications
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
The inspectors confirmed that proprietary information was controlled to protect from public
disclosure.
- On April 12, 2018, the inspector presented the inspection results to Mr.
- J. Ed Burchfield, and
other members of the licensee staff.
Enclosure
DOCUMENTS REVIEWED
71111.01: Adverse Weather Protection
Nuclear Condition Report
2169114; 02174700
Procedures
OP/0/A/1104/037, Plant Heating, Rev. 004
OP/0/A/1104/041, Auxiliary Building Ventilation, Rev. 041
OP/0/A/1106/041, Turbine Building Ventilation, Rev. 007
OP/0/A/1600/002, Standby Shutdown Facility Heating, Ventilation and Air Conditioning System
Operation (HVAC), Rev. 037
OP/0/B/1104/050, Weather Related Activities, Rev. 005
OP/1/A/1104/051, ESV System, Rev. 028
OP/2/A/1104/051, ESV System, Rev. 040
OP/3/A/1104/051, ESV System, Rev. 028
PT/0/A/0110/017, Cold Weather Protection, Rev. 013
RP/0/A/1000/035, Severe Weather Preparations, Rev. 003
Work Orders/Requests
20091981; 20157474
71111.04: Equipment Alignment
Documents
AD-OP-ALL-0201, Protected Equipment, Rev. 3
OSS-0254.00-00-1021, Design Basis Specification for the Control Room Ventilation System
Oconee Nuclear Site Technical Specifications, amended August 13, 2014
Oconee Nuclear Site Technical Specifications Bases, updated June 3, 2011
OC-SSS-IA-14, Compressed Air Composite, dated April 15, 2009
Drawings
O-0705, Rev. 104
O-1705, Rev. 87
O-2705, Rev. 87
OFD-166J-1.2, Rev 15
OFD-116J-1.5, Rev. 24
OFD-116J-1.6, Rev 20
OFD-121D-1.1, Rev. 38
OFD-121D-2.1, Rev. 39
OFD-121D-3.1, Rev. 46
OFD-124A-1.2, Rev 55
OFD-124B-1.1, Rev. 67
OFD-124B-2.1, Rev. 76
OFD-124B-3.1, Rev. 61
OFD-133A-2.5, Rev. 58
OFD-137B-1.1, Rev. 26
OFD-137B-1.2, Rev. 27
OFD-144A-1.1, Rev. 16
OFD-144A-1.2, Rev. 15
OFD-144A-1.3, Rev. 10
OFD-144A-1.4, Rev. 10
Enclosure
Nuclear Condition Report
2114841; 02119628; 02137156; 02138440; 02139231; 02149244; 02162787
Procedures
MP/0/A/3007/054 A, Chillers - A and B - York - Codepak - Preventive Maintenance (QA-5),
Rev. 034
OP/0/A/1106/019, Keowee Hydro at Oconee, Rev. 104
OP/A/1106/027, Instrument Air System, Rev. 120
PT/0/A/0500/001, Protected Service Water Primary and Booster Pump Test, Rev. 003
PT/0/A/0620/009, Keowee Hydro Operation, Rev. 052
Work Orders/Requests
20085997; 20095495; 20104045; 20104322; 20112663; 20118654; 20126636; 20182563;
20185924; 20192286; 20208815; 20220075
71111.05AQ: Fire Protection
Documents
Oconee Nuclear Station Fire Brigade Drill, Drill # 2 Main Power Battery - 1A
Nuclear Condition Report
2174700; 02176943
Other
O-FS-0-OC-9000-003, Pre-Fire Plan for Keowee Hydro Station, Rev. 1
O-FS-1-AB-9758-001, Pre-Fire Plan for Unit 1 & 2 Auxiliary Building Elevation 758, Rev. 002
O-FS-1-AB-9783-001, Pre-Fire Plan for Unit 1 Auxiliary Building Elevation 783, Rev. 002
O-FS-2-TB-9796-001, Pre-Fire Plan for Unit 2 Turbine Building Elevation 796, Rev. 001
O-FS-3-TB-9796-001, Pre-Fire Plan for Unit 3 Turbine Building Elevation 796, Rev. 001
Procedures
AD-HU-ALL-0003, Conduct of Pre-Job Brief and Post-Job Critiques, Rev. 5
AD-OP-ALL-0207, Fire Brigade and Hazmat Team Administrative Controls, Rev. 0
AD-RP-ALL-6002, Inspections of Self-Contained Breathing Apparatus (SCBA) and Associated
Equipment, Rev. 0
PT/0/A/0250/025, HPSW Pump and Fire Protection Flow Test, Rev. 065
PT/0/B/2000/050, Fire Drill - Performance and Evaluation, Rev. 002
RP/0/A/1000/001, Emergency Classification, Rev. 006
71111.06: Internal Flood Protection
Nuclear Condition Report
01857433; 02122484
Procedures
TE-MN-ALL-0002, Foreign Material Exclusion Level and Controls Screening, Rev. 1
Work Orders/Requests
234895
Enclosure
71111.07: Heat Sink Performance
Calculations
OSC-3767, Diesel Jacket Water Heat Exchanger and Diesel Lube Oil Cooler Tube Plugging
Evaluation, Rev. 5
Nuclear Condition Report
01852472; 01853633; 01906254; 02174289
Other
2017 SSF Diesel and Support Systems Health Reports
DJWHX-000A Eddy Current Inspection Report - INAGE0715, dated July 14, 2015
DJWHX-000B Eddy Current Inspection Report - INAGE0715, dated July 14, 2015
Maintenance Rule Function Scoping Document for function DJW.3, Provide jacket cooling for
the SSF diesel generator, printed February 12, 2018
Maintenance Rule Function Scoping Document for function SSF+.1, Provides an independent
emergency source of electrical power, printed February 12, 2018
OSS-0254.00-00-1008, Design Basis Specification for the Standby Shutdown Facility Diesel
Support System, Rev. 48
Procedures
AD-EG-ALL-1210, Maintenance Rule Program, Rev. 1
Work Orders/Requests
210310; 02151607; 02151608
71111.11: Licensed Operator Requalification
Documents
ASE-4B, Active Simulator Exam, Rev. 01
Procedures
PT/1/A/0290/003, Turbine Valve Movement, Rev. 015
Work Orders/Requests
220083
71111.12: Maintenance Effectiveness
Documents
ONS LPSW 846 Metallurgy File #5773, Nuclear Generation Metallurgy Evaluation of
catastrophic failure of 0LPSW-846
LPSW System Health Report
Nuclear Condition Report
2163493
Work Orders/Requests
71111.13: Risk Assessments
Documents
AD-EG-ALL-1004, Conduct of Probabilistic Risk Analysis Engineering, Rev. 2
AD-NF-ALL-0501, Electronic Risk Assessment Tool (ERAT), Rev. 1
Enclosure
AD-NF-NGO-0502, Probabilistic Assessment (PRA) Model Technical Adequacy, Rev. 2
Oconee Projected ERAT Risk Profile - 18W5, February 1, 2018
Oconee Projected ERAT Risk Profile - 18W12, March 20, 2018
Nuclear Condition Report
2192623; 02192755
Procedures
MP/0/A/3009/017 A, Visual Inspection and Electrical Motor Tests Using Baker Equipment, Rev.
2
PT/0/A/0500/001, Protected Service Water Primary and Booster Pump Test, Rev. 003
Work Orders/Requests
20182563; 20188353; 20208815
71111.15: Operability Evaluations
Documents
OSS-0254.00-00-1008, Design Basis Specification for the Standby Shutdown Facility Diesel
Support System, Rev 048
OSS-0254.00-00-1009, Design Basis Specification for the Standby Shutdown Facility HVAC
System, Rev 023
OSS-0254.00-00-1028, Design Basis Specification for the Low Pressure Injection and Core
Flood System, Rev 054
OSS-0254.00-00-1039, Design Basis Specification for the Low Pressure Service Water System,
Rev 49
OSS-0254.00-00-2014, Design Basis Specification for the 4160/600/120V SSF Essential AC
Power System, Rev 015
Drawings
OEE-151-39, Elementary Diagram Reactor Coolant Makeup Pump MT
- R. Controls, Rev. 8
OEE-151-39A, Elementary Diagram Reactor Coolant Make-up Pump MT
- R. Controls, Rev. 13
Nuclear Condition Report
01839593; 02089372; 02174814; 02184118; 02184186; 02186273; 02186649; 02185787;
2186961; 02187007; 02187046; 02189331; 02189530
Procedures
PT/1/A/0400/007, SSF RC Makeup Pump Test, Rev. 069
Work Orders/Requests
20057206; 20057256; 20094672; 20222643
71111.19: Post-Maintenance Testing
Documents
OSS-0254.00-00-1008, Design Basis Specification for the Standby Shutdown Facility Diesel
Support System, Rev 048
OSS-0254.00-00-1009, Design Basis Specification for the Standby Shutdown Facility HVAC
System, Rev 023
OSS-0254.00-00-2014, Design Basis Specification for the 4160/600/120V SSF Essential AC
Power System, Rev 015
Enclosure
Drawings
OP-OC-EL-EPD-2, Electrical Distribution, Rev. 2
Nuclear Condition Report
01780746; 02175226; 02176057; 02184401; 02186649; 02186961; 02187007; 02187046
Other
Procedures
IP/0/A/0100/001, Controlling Procedure for Troubleshooting and Corrective Maintenance, Rev
OP/0/A/1600/009, SSF Auxiliary Service Water System, Rev 037
OP/0/A/1600/010, Operation of the SSF Diesel-Generator, Rev 094
PT/0/A/0400/011, SSF Diesel Generator Test, Rev 015
PT/0/A0400/012, Diesel Air System Check Valve Test, Rev 012
PT/0/A/0600/020, Standby Shutdown Facility Instrument Surveillance, Rev 024
PT/0/A/0600/021, Standby Shutdown Facility Diesel-Generator Operation, Rev 016
PT/0/A/0600/023, Standby Shutdown Facility Oil Inventory, Rev 007
PT/0/A/0610/022, Degraded Grid and Switchyard Isolation Test, Rev. 039
PT/2/A/0150/057, RB Pressure Switches and Associated Transmitters Leak Rate Test, Rev.
015
PT/2/A/0152/035, 2PSDW-22 and 2PSW-24 Valve Stroke Test, Rev 6
Work Orders/Requests
20070988; 20101110; 20104802; 20104803; 20126932
71111.22: Surveillance Testing
Nuclear Condition Report
2178024; 02185270
Other
OP/0/B/1106/033, Primary System Leak Identification, completed February 21, 2018
PT/1/A/0600/010, Reactor Coolant Leakage (Unit 1), completed January 18, 2018
Procedures
IP/0/A/3000/003 BK1, Keowee Hydro Station Battery 1 Service Test and Annual Surveillance,
Rev 004
IP/0/A/3000/026, Battery Cell Connection Resistance Test, Rev 044
IP/0/A/4980/081 E, ABB Type 81 Relay Test, Rev. 015
PT/0/A/0500/001, Protected Service Water Primary and Booster Pump Test, Rev. 003
PT/0/A/0620/009, Keowee Hydro Operation, Rev. 052
PT/1/A/0204/007, Reactor Building Spray Pump Test, Rev. 104
PT/2/A/0600/012, Turbine Driven Emergency Feedwater Pump Test, Rev. 095
PT/3/A/0202/011, High Pressure Injection Pump Test, Rev 091
Work Orders/Requests
20185924-01; 20185924-02; 20220075-03
Enclosure
71114.06: Drill Evaluation
Documents
AD-EP-ALL-0105, Activation and Operation of the Technical Support Center, Rev. 1
AD-EP-ALL-0106, Activation and Operation of the Operations Support Center, Rev. 1
AD-EP-ALL-0803, Evaluation and Critique of Drills and Exercises, Rev. 3
AD-EP-ONS-0105, ONS Site Specific TSC Support, Rev. 000
AD-EP-ONS-0106, ONS Site Specific OSC Support, Rev. 000
Other
FAD-ON-EP-EAL-EALMatrix, Oconee Nuclear Station Wallchart, Rev. 000
Oconee Nuclear Station Drill 18-01, dated January 19, 2018
Procedures
AP/2/A/1700/014, Loss of Normal HPI Makeup and/or RCP Seal Injection, Rev. 014
AP/2/A/1700/023, Loss of ICS Power, Rev. 023
PT/0/A/2000/008, Procedure to Verify the Availability of Supplies and Equipment in the
Emergency Response Facilities, Rev. 000
RP/0/A/1000/001, Emergency Classification, Rev. 006
RP/0/A/1000/009, Procedure for Site Assembly, Rev. 003
RP/0/A/1000/015 A, Offsite Communications for the Control Room, Rev. 009
71151: Performance Identification Verification
Documents
Unit 1 station logs covering period of March, 2017 through March, 2018
Unit 2 station logs covering period of March, 2017 through March, 2018
Unit 3 station logs covering period of March, 2017 through March, 2018
Enclosure