ML20266G219
| ML20266G219 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 11/03/2020 |
| From: | Michael Mahoney Plant Licensing Branch II |
| To: | Burchfield J Duke Energy Carolinas |
| Mahoney M | |
| References | |
| EPID L 2019-LLA-0184 | |
| Download: ML20266G219 (13) | |
Text
November 3, 2020 Mr. J. Ed Burchfield, Jr.
Site Vice President Oconee Nuclear Station Duke Energy Carolinas, LLC 7800 Rochester Highway Seneca, SC 29672-0752
SUBJECT:
OCONEE NUCLEAR STATION, UNITS 1, 2 AND 3 - REGULATORY AUDIT REPORT REGARDING LICENSE AMENDMENT REQUEST TO REVISE THE LICENSING BASIS FOR HIGH ENERGY LINE BREAKS OUTSIDE OF THE CONTAINMENT BUILDING (EPID L-2019-LLA-0184)
Dear Mr. Burchfield:
By letter dated August 28, 2019, as supplemented by letters dated June 15 and September 17, 2020 (Agencywide Documents Access and Management System (ADAMS) Accession Nos.
ML19240A925, ML20169A339 and ML20261H584, respectively), Duke Energy Carolinas, LLC.
(Duke Energy, or the licensee) submitted a license amendment request (LAR) for Oconee Nuclear Station, Units 1, 2, and 3 (Oconee). The LAR proposes to revise the Oconee current licensing basis for high energy line breaks (HELBs) outside of the containment building.
The U.S. Nuclear Regulatory Commissions (NRCs) Office of Nuclear Reactor Regulation staff conducted an audit to support its review of the amendment request. The audit plan is available in ADAMS at Accession No. ML20036E390.
The audit occurred at the NRCs office in Rockville, Maryland. NRC technical reviewers assigned to review the amendment request conducted the audit using an internet-based portal (Certrec), provided by the licensee. The areas of review for the audit were divided into four areas: (1) new time-critical operator actions, (2) detailed arrangement drawings and system descriptions to evaluate for potential spatial interactions between HELB locations and equipment that mitigates the event, (3) environmental qualification of electrical equipment, and (4) locations of all postulated breaks and critical cracks. The purpose of the audit was to acquire additional understanding about the amendment request and to determine whether additional information was needed to be submitted on the docket for NRC staff to complete its safety evaluation. On February 18 (audit kickoff), March 3, and May 14, 2020 the NRC staff held teleconferences with the licensee to discuss the documents on the portal.
The enclosure to this letter provides a report of the NRC staffs audit. The staff requested additional information from the licensee via letter dated May 6, 2020 (ADAMS Accession No. ML20125A361), and electronic email dated August 14, 2020 (ADAMS Accession No. ML20227A372).
J. E. Burchfield, Jr. If you have any questions, please contact me by telephone at (301) 415-3867 or by e-mail at Michael.Mahoney@nrc.gov.
Sincerely,
/RA/
Michael Mahoney, Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-287
Enclosure:
Audit Report cc: Listserv
REGULATORY AUDIT REPORT DUKE ENERGY CAROLINAS, LLC.
OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 LICENSE AMENDMENT REQUEST TO REVISE THE LICENSING BASIS FOR HIGH ENERGY LINE BREAKS OUTSIDE OF THE CONTAINMENT BUILDING DOCKET NOS. 50-267, 50-270, AND 50-287
1.0 BACKGROUND
By letter dated August 28, 2019, as supplemented by letters dated June 15 and September 17, 2020 (Agencywide Documents Access and Management System (ADAMS) Accession Nos.
ML19240A925, ML20169A339 and ML20261H584, respectively), Duke Energy Carolinas, LLC.
(Duke Energy, or the licensee) submitted a license amendment request (LAR) for Oconee Nuclear Station, Units 1, 2, and 3 (Oconee). The LAR proposes to revise the Oconee current licensing basis for high energy line breaks (HELBs) outside of the containment building.
The areas of review for the audit were divided into four areas: (1) new time critical operator actions, (2) detailed arrangement drawings and system descriptions to evaluate for potential spatial interactions between HELB locations and equipment that mitigates the event, (3) environmental qualification of electrical equipment, and (4) locations of all postulated breaks and critical cracks. The purpose of the audit was to acquire additional understanding about the amendment request and to determine whether additional information was needed to be submitted on the for NRC staff to complete its safety evaluation The NRC staff conducted the regulatory audit in accordance with the Office of Nuclear Reactor Regulation (NRR) Office Instruction LIC-111, Regulatory Audits (ADAMS Accession No. ML082900195).
2.0 SCOPE AND PURPOSE The audit was held (remotely) from February 18 to May 14, 2020. The purpose of the audit was to help the NRC staff better understand the documentation and analysis results through interaction with the licensees technical experts and to help focus the staffs request for additional information (RAIs) on those questions where docketed information is needed to complete the review.
Enclosure
3.0 AUDIT TEAM The following NRC staff members participated in the audit:
Michael Mahoney, Plant Licensing Branch 2-1 (LPL2-1)
Sheila Ray, Electrical Engineering New Reactors and License Renewal Branch (EENB)
Steve Jones, Containment and Plant Systems Branch (SCPB)
Gordon Curran, Containment and Plant Systems Branch (SCPB)
DaBin Ki, Operator Licensing and Human Factors Branch (IOLB)
Michael Breach, Mechanical Engineering and Inservice Testing Branch (EMIB)
Matthew McConnell, Electrical Engineering New Reactors and License Renewal Branch (EENB) 4.0 AUDIT
SUMMARY
One of the NRC staffs objectives for the audit was to verify key assumptions, analyses, and test reports used to support the basis for the LAR. The NRC staff audited this information to better understand how the licensee evaluated the potential effects of the proposed changes on the environmental qualification (EQ) of electrical equipment as a result of a high energy line break.
Specifically, in the East and West Penetration Rooms, equipment will be subjected to increased temperatures and pressures as a result of new analysis for the postulated Main Steam (MS)
HELB and Main Feedwater (MFDW) HELBs. Staff selected a representative sample of electrical components from the list of affected equipment, in Attachment 9 of the LAR. The representative sample was selected from a list of components affected by the proposed changes based on risk significance and importance to defense-in-depth. The sample was also selected to include a range of different component types. These components included electrical penetration assemblies, motor-operated valves, signal converters, solenoid valves, flow transmitters, thermocouples, pressure transmitters, pressure switches, terminal blocks, and cabling.
The staff reviewed the EQ documentation packages, supporting documents, and analyses for these components, which document the EQ process/methodology and results for the component.
Specifically, for the electrical equipment listed above, staff reviewed the assumptions and analyses as well as qualification documentation and supporting calculations. The staff reviewed the qualification evaluation of the electrical equipment for the new environmental profiles.
The scope of NRC staffs review also, included the following:
postulation of critical cracks and the licensees proposal to eliminate postulated arbitrary intermediate pipe breaks in Class 1 piping and Class 2 and 3 equivalent piping in areas of the plant outside the containment penetration areas; the licensees determination of jet impingement effect; changes to postulated cracks; and excluded systems.
5.0 DOCUMENTS REVIEWED The following documents were reviewed during the audit:
Document Identifier Title/Description O-6 General Arrangement 771 0 O-9 General Arrangement 809 3
Document Identifier Title/Description O-7 General Arrangement 783 9 O-10 General Arrangement 822 0 O-5 General Arrangement 758 0 O-8 General Arrangement 796 6 O-11 General Arrangement 838 0 AP/1/A/1700/010 Turbine Building Flood AP/1/A/1700/014 Loss of HPI and/or RCP Seal Injection Table of Contents AUDIT HELB LAR TOC CGD-3007.02-04-0001 States Terminal Blocks, Test Switches, and Accessories CNM 1210.04-0394.001 Qualification Test Report For V70900-65 3-Way Solenoid Valves DPC-1381.05-00-0041 EQ Analysis For Annealing ROTORK MOV Switch Mechanism And Add-On-Pak Components DPC-1381.05-00-0054 Environmental Qualification (EQ) Qualified Life Analysis (TLAA) For ROTORK NA1-Series MOVs Supporting License Renewal TLAA Review DPC-1381.05-00-0068 Environmental Qualification (EQ) Qualified Life Analysis For VALCOR Solenoid Valves Model V70900-65 Series Valves Supporting MNS and CNS License Renewal DPM-1393.01-0030.001 Environmental Qualification Test Summaries Manual for VALCOR V70900-65-24 Solenoid Operated Valve (SOV) All Units for CNS, MNS, ONS & NGO Per PIP C-98-2601 DPM-1393.01-0032 Environmental Qualification Test Summary for Rosemount 1159 Pressure Transmitter Remote Seal System DPM-1393.01-0038.001 Rotork NQR Series Reports DPND-1553.63-1084 Safety Analysis Input to the Oconee HELB LAR DPS-1354.01-00-0001 Low and Medium Voltage Power Cables EQMM-1393.01-A01-00 Environmental Qualification Maintenance Manual -
Equipment Type: Electric Motor Actuator Manufacturer: Rotork Model/Series: NA1 EQMM-1393.01-A02-00 Environmental Qualification Maintenance Manual Equipment Type: Actuator - Manufacturer: Limitorque
- Model/Series: SMB/SBD/SB Inside & Outside EQMM-1393.01-D01-00 Environmental Qualification Maintenance Manual Electro-Pneumatic Transducer EQMM-1393.01-J01-00 Environmental Qualification Maintenance Manual - Equipment Type Electrical Penetration Assemblies, Manufacturer; D.G. OBrien, INC., Model/Series: Types A, B, B6, C, D, D6, E, F, G, H, J, K, L, M, BF, AL-1 And Cathodic Protection EQMM-1393.01-J02-00 EQMM - Equipment Type: Electrical Penetration Assemblies, Manufacturer: CONAX Corporation, Model/Series: Types N And BH And FBR EQMM-1393.01-J02-01 EQMM - Equipment Type: Penetration Manufacturer: CONAX Corporation Model/Series: CD6-1, CD6-2, CE, CE1, CF1, CF2, CG-1, CG-2, CH1, CH2/CH3, CJ, CB, CB6, CC1-1, CC1-2, CC2, & CD (See Page 3)
EQMM-1393.01-J03-00 Environmental Qualification Maintenance Manual - Equipment Type: Electrical Penetration Assemblies, Manufacturer: Viking Industries, Inc., Model/Series: A, B, C1, C2, D, E, E1, F1, F2, G, H1, H2 & H3, J And K
Document Identifier Title/Description EQMM-1393.01-K01-04 Environmental Qualification Maintenance Manual - Equipment Type: Thermocouple; Manufacturer: IST CONAX Nuclear; Model/Series: 7S22-10000 (Reg. Guide 1.97)
EQMM-1393.01-N01-00 Environmental Qualification Maintenance Manual - Equipment Type: Hydraulic Isolators (RVLIS) Manufacturer: Barton Model/Series: 580 Series EQMM-1393.01-P02-02 Environmental Qualification Maintenance Manual - Equipment Type: Pressure Transmitter / Remote Seals; Manufacturer:
Rosemount, Model/Series: 1153B / 1159 EQMM-1393.01-P02-04 Environmental Qualification Maintenance Manual - Equipment Type: Pressure Transmitter / Remote Seals; Manufacturer:
Rosemount, Model/Series: 1154 Series (Including 1154 Series H) /
1159 EQMM-1393.01-Q01-01 Environmental Qualification Maintenance Manual - Equipment Type: Solenoid Valve; Manufacturer: ASCO (Automatic Switch Co.)
Model/Series: Series NP8316, NP8316A, NP83 16B, NP8316E, NPX8316E, NPX8316A And NP8321 EQMM-1393.01-Q03-01 Environmental Qualification Maintenance Manual - Equipment Type: Solenoid Valve Manufacturer: VALCOR Engineering Corporation Model/Series: V70900-65 Series Valves EQMM-1393.01-M01-00 Environmental Qualification Maintenance Manual - Equipment Type: Commercial Grade/Approved Vendor Items Listed On The Commercial Grade Items List Manufacturer: Various Model/Series:
Various EQMM-EQML.ONS-A00- Environmental Qualification Maintenance Manual - EQ Master List 00 (EQML) Equipment Type: Actuators EQMM-EQML.ONS-D00- Environmental Qualification Maintenance Manual - EQ Master List 00 - Station: Oconee - Equipment Type: Controllers EQMM-EQML.ONS-J00-00 Environmental Qualification Maintenance Manual - EQ Master List (EQML) Equipment Type: Penetration Assemblies EQMM-EQML.ONS-K00- Environmental Qualification Maintenance Manual - EQ Master List 00 (EQML) - Station: Oconee - Equipment Type: RTDS EQMM-EQML.ONS-M00- Environmental Qualification Maintenance Manual - EQ Master List -
00 Station: Oconee - Equipment Type: Commercial Grade / Approved Vendor Items EQMM-EQML.ONS-N00- Environmental Qualification Maintenance Manual - EQ Master List -
00 Station: Oconee - Equipment Type: Switches EQMM-EQML.ONS-P00- Environmental Qualification Maintenance Manual - EQ Master List 00 (EQML) - Station: Oconee - Equipment Type: Transmitters EQMM-EQML.ONS-Q00- Environmental Qualification Maintenance Manual - EQ Master List 00 (EQML) - Station: Oconee - Equipment Type: Solenoid Valves 8-28-19 HELB LAR HELB LAR Attachment 12 IP0B20037C Pressurizer Ambient Heat Loss Test MDS OS 73.2 Excerpt from Penetration Room Pressure and Temperature O-1439A U2 Main FDW from TB to EPR with EFW and HPI O-1439A U2 Main FDW from TB to EPR O-1439B U2 Main FDW from TB to EPR with EFW and HPI O-1439B U2 MS & Main FDW from EPR to TB O-1439D U2 Main FDW Elevation View in EPR with EFW and HPI
Document Identifier Title/Description O-1439E U2 Main FDW Elevation View in EPR with EFW and HPI O-2439A U3 Main FDW from TB to EPR with EFW and HPI O-2439A U3 Main FDW from TB to EPR O-2439B U3 Main FDW from TB to EPR with EFW and HPI O-2439B U3 MS & Main FDW from EPR to TB O-2439D U3 EFW and HPI Section Views in EPR O-2439E U3 HPI and EFW Section Views in EPR O-439A U1 Main FDW from TB to EPR with EFW and HPI O-439A U1 Main FDW from TB to EPR O-439B U1 Main FDW from TB to EPR with EFW and HPI O-439B U1 Main FDW from TB to EPR O-439D U1 Main FDW Elevation View in EPR with EFW and HPI O-439D U1 Main FDW Elevation View in EPR O-439E U1 Main FDW Elevation View in EPR with EFW and HPI O-441 U1 MS Piping in EPR OFD-131A-1.1 U1 Flow Diagram of PSW System OFD-131A-1.2 U1 Flow Diagram of PSW System SG & HPI Pump Motor Cooling Service OFD-131A-2.2 U2 Flow Diagram of PSW System SG & HPI Pump Motor Cooling Service OFD-131A-3.2 U3 Flow Diagram of PSW System SG & HPI Pump Motor Cooling Service OM 245.--0979.001 Limitorque Valve Actuator Qualification For Nuclear Power Station Service Report B0058 OM 245.--0980.001 NIB-Rotork Valve Operator Nuclear Qualification (Post 1978)
OM 245.--1451.001 NIB-Rotork EMO Environmental Qualification (NA1 Pre 1978)
(Some Pgs Received From Vendor Were Illegible)
OM 251.-0782.001 Qualification Report: IEEE 323/344 Qualification Fisher Nuclear Service Type 546 NS I/P Transducer OM 253.--0033.001 NIB-Automatic Switch Co. Qual. Test Report For Solenoid Valves OM 267.-- 0969.001 NIB -(Viewable) Qualification Report For Pressure Transmitter Model 1154 OM 267.--1200.001 NIB -(Viewable) Qualification Report For Model 1154 Series H Pressure Transmitter OM 267.A--0051.001 NIB -(Viewable) Type Test For Model 11538 Pressure Transmitters OM 311.B--0022.001 NIP - Barton Hydraulic Isolator Qualification Test Report Proprietary OM 333.B--0002.001 IPS-1138 Design Qualification Test Report For Class 1E RTD And Thermocouple Assemblies For CONAX Corporation OM 337. 0080.001 NIB - Viking Electrical Penetrations Qualification Testing Summary OM 337.0089.001 Environmental Qualification/Documentation Package For Electrical Penetration Assemblies-D.G. OBrien, Inc. (Types B6, D6, E5, J5, M, BF And AL-1 OM 363.0023.001 Environmental Qualification/Documentation Package For Penetration Assemblies - IST CONAX Corporation OSC-0688 Turbine Building Drain OSC-10002 Oconee ROTSG Tube Shell Interaction Analysis for DMSLB with SSF for Mitigation
Document Identifier Title/Description OSC-10651 Event Mitigation with Protected Service Water (PSW)
OSC-10785 GOTHIC Containment Analysis Utilizing the Protected Service Water (PSW) System OSC-10937 Extended Loss of AC Power FLEX RELAP5 Analysis OSC-11214 SSF Licensing Summary Documents OSC-11547 High Energy Line Break Relap5 Analysis OSC-11578 Mk-B-HTP Moderator Reactivity (SSC=Fuel)
OSC-11587 HELB Steam Line Break Dose Analysis OSC-11638 RCS Response to a Loss of Main Feedwater and 4160 VAC Power with PSW or SSF Recovery (High Energy Line Break Analysis /
Tornado Analysis)
OSC-11769 Attachment Analysis of Postulated HELBs Outside Of Containment - Diagram 8.1 of HELB Calculations Applicable to Each Unit OSC-11769 Analysis of Postulated HELBs Outside Of Containment OSC-196 Penetration Review OSC-2034 East Penetration Rooms Low Pressure Blowout Panels OSC-4171 SSF ASW Design Inputs Calculation OSC-6182 Main Steam Line Break (MSLB) - Event Mitigation Requirements Type III OSC-7153 Qualified Life Analysis for D.G. OBrien Electrical Penetrations OSC-7346 Main Feedwater Line Break Event Mitigation Requirements OSC-7516.01 High Energy Line Break Stress Evaluation - Unit 1 OSC-7516.02 ONS-Unit 1-Pipe Rupture Evaluation HELB Outside Containment Walkdowns OSC-7516.03 Unit 1 HELB Turbine Building Structural Interactions Evaluations OSC-7516.04 Safe Shutdown Equipment Damage Assessment For HELB OSC-7516.06 TB STRUDL Model for Detailed HELB Evaluations OSC-7516.07 ONS Unit 1 HELB Cable Interactions Failure Modes and Effects OSC-7516.08 Failure Modes and Effects Analysis for HELB OSC-7516.09 ONS Unit 1 Collateral Damage to Systems, Structures, And Components Located In The Turbine Building From Postulated HELBs OSC-7516.10 Collateral Damage Assessment for Structural Interaction From Postulated HELBs OSC-7517.01 High Energy Line Break Stress Evaluation Part 1 OSC-7517.01 High Energy Line Break Stress Evaluation Part 2 OSC-7517.01 High Energy Line Break Stress Evaluation Part 3 OSC-7517.01 High Energy Line Break Stress Evaluation Part 4 OSC-7517.01 High Energy Line Break Stress Evaluation Part 5 OSC-7517.02 ONS-Unit 2 Pipe Rupture Evaluation HELB Outside Containment Plant Walkdowns OSC-7517.03 Unit 2 HELB Turbine Building Structural Interactions Evaluations OSC-7517.04 Safe Shutdown Equipment Damage Assessment For HELB
Document Identifier Title/Description OSC-7517.06 TB STRUDL Model for Detailed HELB Evaluations OSC-7517.07 ONS Unit 2 HELB Cable Interactions - Failure Modes and Effects (Type 1)
OSC-7517.08 Cable Failure Modes and Effects Analysis for HELB OSC-7517.09 ONS Unit 2 Collateral Damage to Systems, Structures, and Components Located in the Turbine Building From Postulated HELBs OSC-7517.10 Collateral Damage Assessment for Structural Interaction From Postulated HELBs OSC-7518.01 High Energy Line Break Stress Evaluation (Volume 1, 2, 3)
OSC-7518.02 ONS Unit 3 Pipe Rupture Evaluation HELB Outside Containment Plant Walkdowns OSC-7518.03 Unit 3 HELB Turbine Building Structural Interactions Evaluations OSC-7518.04 Safe Shutdown Equipment Damage Assessment For HELB OSC-7518.06 TB STRUDL Model for Detailed HELB Evaluations OSC-7518.07 ONS Unit 3 HELB Cable Interactions Failure Modes and Effects OSC-7518.08 Cable Failure Modes And Effects Analysis For HELB OSC-7518.09 ONS U3 Collateral Damage to Systems, Structures, and Components Located in the Turbine Building from Postulated HELB OSC-7518.10 Collateral Damage Assessment for Structural Interaction from Postulated HELBS OSC-7726 Feedwater Line Break Analysis OSC-7934 Oconee Nuclear Station Units 1, 2 & 3 Auxiliary Building GOTHIC Heat Up Analysis - PSW Event Cases OSC-8036 Flow from FDW (Feedwater) Line Crack Into Penetration Room.
OSC-8089.01 High Energy Line Break (HELB) Safe Shutdown Target List (SSTL)
OSC-8089.02 High Energy Line Break Safe Shutdown Target List Pressure Boundary Piping OSC-8104 High Energy Line Breaks in the Penetration Room OSC-8201 UFSAR Section 5.2.3.4 - ROTSG FWLB Analysis OSC-8265 East Penetration Room Flooding from Feedwater Line Breaks OSC-8319.06 Replacement Steam Generators Supporting Vendor Calculations OSC-8385 Normal Operating Condition for High Energy Line Break (HELB)
Analysis OSC-8505 Oconee HELB EQ Analysis For Penetration Rooms OSC-8556 High Energy Line Break Safe Shutdown Components Analysis OSC-8602 Evaluation of East Penetration (Room) Structural Components OSC-9076 HPI HELB at Penetration 9 - Flow Rate Into The East Penetration Room OSC-9082 HELB at HPI Pump - Pump Operating Point & Time To Flood OSC-9204 Determination of Flooding Rates And Flood Heights In The Turbine Building As A Result Of Postulated High Energy Line Breaks OSC-9213 Determination of Flooding Rates and Flood Heights in the East &
West Penetration Rooms Caused by HPI High Energy Line Breaks OSC-9276 HELB Letdown Line Break Analysis OSC-9281 Radiological Dose Consequences of a HELB Letdown Line Break Event OSC-9333 Evaluation of West Penetration Room Structural Components
Document Identifier Title/Description OSC-9344 Evaluation of Jet Lengths From The Terminal End Main Feedwater HELBs in the East Penetration Rooms OSC-9352 ROTSG Double Steam Line Break Evaluation OSC-9355 Double Steam Line Break Analysis OSC-9554 Ventilation Equipment Room 520 HELB Analysis OSC-9603 Evaluation of Postulated Plant Heating System High Energy Line Breaks (HELBS) in Room 505 (Unit 1 Ventilation Equipment), 520 (Unit 2 Ventilation Equipment Room), 408B (Unit 2 Storage Room) and 565 (Unit 3 Ventilation Equipment Room)
OSC-9656 Determination and Documentation of Input Parameters for Ventilation Room 565 HELB Analysis OSC-9693 Ventilation Equipment Room 565 HELB Analysis OSFD-121D-1 Summary Flow Diagram of EFW OSS-0254.00-00-1001 HPI DBD OSS-0254.00-00-1004 SSF RCMU DBD OSS-0254.00-00-1005 SSF ASW DBD OSS-0254.00-00-1008 SSF Diesel Support DBD OSS-0254.00-00-1053 PSW DBD OSS-0254.00-00-1055 PSW Building OSS-0254.00-00-2014 SSF 4160 & 120 VAC DBD OSS-0254.00-00-2020 SSF 125VDC DBD PSW O-1436F Unit 2 - Piping Layout - Protected Service Water - Plan and Sections at EL. 771-0 Auxiliary Building PSW O-1439A Unit 2 - Piping Layout - East Penetration Room - Elevation 809-3 Auxiliary Building PSW O-1439C Unit 2 - Piping Layout - West Penetration Room - Elevation 809-3 Auxiliary Building PSW O-1439F Unit 2 - Piping Layout - SSF Aux. Service Water Service - EL. 809-3 Auxiliary Building PSW O-2435D Unit 3 - Piping Layout - Enlarged Plan, Elevation 758-0 Auxiliary Building PSW O-2436C Unit 3 - Piping Layout - Plan Elevation 771-0 Auxiliary Building PSW O-2436E Unit 3 - Piping Layout - Sections, Elevation 771-0 Auxiliary Building PSW O-2436L Unit 3 - Piping Layout - Protected Service Water - Plan at Elevation 771-0 Auxiliary Building PSW O-2436N Unit 3 - Piping Layout - Protected Service Water - Plan at Elevation 771-0 Auxiliary Building PSW O-2436P Units 1&2 - Piping Layout - Protected Service Water - Sections &
Details 771-0 Auxiliary Building PSW O-2437K Unit 3 - Piping Layout - Protected Service Water - Plan, Sections &
Details 783-9 Auxiliary Building PSW O-2437L Unit 3 - Piping Layout - Protected Service Water - Sections &
Details at Elevation 783-9 Auxiliary Building PSW O-2438B Unit 3 - Piping Layout - Plan and Sections EL. 796-0 Auxiliary Building PSW O-2439A Unit 3 - Piping Layout - East Penetration Room - Elevation 809-3 Auxiliary Building
Document Identifier Title/Description PSW O-2439C Unit 3 - Piping Layout - West Penetration Room - Elevation 809-3 Auxiliary Building PSW O-2439F Unit 3 - Piping Layout - SSF Auxiliary Service Water System - EL.
809-3 Auxiliary Building PSW O-436S Units 1&2 - Piping Layout - Enlarged Plans & Sections Elevation 771-0 Auxiliary Building PSW O-436U Unit 0 - Piping Layout - Protected Service Water - Plan and Sections at Elevation 771-0 Auxiliary Building PSW O-437I Units 1&2 - Protective Service Water - Plan, Sections & Details Auxiliary Building PSW O-437J Units 1&2 - Piping Layout - Protected Service Water - Plan, Sections & Details 783-9 Auxiliary Building PSW O-438B Units 1&2 - Piping Layout - Plan - Elevation 796-6 Auxiliary Building PSW O-438C Units 1&2 - Piping Layout - Elevation 796 Plan, Sections and Details - Auxiliary Building PSW O-439A Unit 1 - Piping Layout - East Penetration Room - Elevation 809-3 to 821-6 Auxiliary Building PSW O-439C Unit 1 - Piping Layout - West Penetration Room - Elevation 809-3 Auxiliary Building PSW O-439G Unit 1 - Piping Layout - SSF Auxiliary Service Water System -
Elevation 809-3 Auxiliary Building PT/0/A/0120/033 Enclosure 13.6 PT-1-A-200-55 U1 Pressurizer Heater Ambient Heat Loss Test PT-2-A-200-55 U2 Pressurizer Heater Ambient Heat Loss Test PT-3-A-200-55 U3 Pressurizer Heater Ambient Heat Loss Test Roadmap for Feeding SGs N/A with PSW TCOA Roadmap for Isolating HPI N/A Pump TCOA Roadmap for Securing N/A RCP TCOA Roadmap for Tripping N/A CCW Pumps TCOA Roadmap on Isolating N/A Letdown Line TCOA
6.0 CONCLUSION
The NRC staff provided a brief conclusion of the audit objectives that were met and details on the path forward. There were no regulatory decisions made. There were no open items needing further clarification and no deviation from the audit plan. The staff requested additional information from the licensee via letter dated May 6, 2020 (ADAMS Accession No. ML20125A361), and electronic email dated August 14, 2020 (ADAMS Accession No. ML20227A372).
Date: November 3, 2020
Table 1 NRC Audit - Attendees February 18 to May 14, 2020 Attendee Name Affiliation Michael Mahoney NRC-NRR Sheila Ray NRC-NRR Steve Jones NRC-NRR Gordan Curran NRC-NRR Matthew McConnell NRC-NRR Dabin Ki NRC-NRR Michael Breach NRC-NRR Tim Brown Duke Energy Chris Wasik Duke Energy Dean Hubbard Duke Energy Jason Patterson Duke Energy Reene Gambrell Duke Energy Thomas Yadon Duke Energy Mclain Hubbard Duke Energy Sean Franklin Duke Energy Camden Eflin Duke Energy
ML20266G219 *Via E-mail OFFICE NRR/DORL/LPL2-1/PM NRR/DORL/LPL2-1/LA NRR/DORL/LPL2-1/BC NAME MMahoney KGoldstein MMarkley DATE 10/25/2020 10/24/2020 11/03/2020 OFFICE NRR/DORL/LPL2-1/PM NAME MMahoney DATE 11/03/2020