IR 05000528/2021012
| ML21123A163 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 05/04/2021 |
| From: | Nick Taylor NRC Region 4 |
| To: | Lacal M Arizona Public Service Co |
| References | |
| IR 2021012 | |
| Download: ML21123A163 (12) | |
Text
May 4, 2021
SUBJECT:
PALO VERDE NUCLEAR GENERATING STATION - TRIENNIAL FIRE PROTECTION INSPECTION REPORT 05000528/2021012, 05000529/2021012 AND 05000530/2021012
Dear Ms. Lacal:
On April 16, 2021, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Palo Verde Nuclear Generating Station. The NRC inspectors discussed the results of this inspection with Mr. Todd Horton, Senior Vice President, Site Operations and other members of your staff. The results of this inspection are documented in the enclosed report.
No findings or violations of more than minor significance were identified during this inspection.
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 Title 10 of the Code of Federal Regulations (10 CFR) 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely, Nicholas Digitally signed by Nicholas H. Taylor H. Taylor Date: 2021.05.04 08:11:57 -05'00'
Nicholas H. Taylor, Chief Engineering Branch 2 Division of Reactor Safety Docket Nos. 05000528, 05000529 and 05000530 License Nos. NPF-41, NPF-51 and NPF-74
Enclosure:
As stated
Inspection Report
Docket Numbers: 05000528, 05000529 and 05000530 License Numbers: NPF-41, NPF-51 and NPF-74 Report Numbers: 05000528/2021012, 05000529/2021012 and 05000530/2021012 Enterprise Identifier: I-2021-012-0000 Licensee: Arizona Public Service Company Facility: Palo Verde Nuclear Generating Station Location: Tonopah, AZ Inspection Dates: March 29, 2021, to April 16, 2021 Inspectors: G. Pick, Senior Reactor Inspector S. Makor, Reactor Inspector J. Mateychick, Senior Reactor Inspector Approved By: Nicholas H. Taylor, Chief Engineering Branch 2 Division of Reactor Safety Enclosure
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a triennial fire protection inspection at Palo Verde Nuclear Generating Station, 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.
List of Findings and Violations
No findings or violations of more than minor significance were identified.
Additional Tracking Items
None.
INSPECTION SCOPES
Inspections were conducted using the appropriate portions of the inspection procedures in effect at the beginning of the inspection unless otherwise noted. Currently approved inspection procedures 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 (IMC) 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.
Starting on March 20, 2020, in response to the National Emergency declared by the President of the United States on the public health risks of the coronavirus (COVID-19), resident and regional inspectors were directed to begin telework and to remotely access licensee information using available technology. During this time, resident and regional baseline inspections were evaluated to determine if all or portions of the objectives and requirements stated in the inspection procedure could be performed remotely. If the inspections could be performed remotely, they were conducted per the applicable inspection procedure. In some cases, portions of an inspection procedure were completed remotely and on site. The inspections documented below met the objectives and requirements for completion of the inspection procedure.
REACTOR SAFETY
71111.21N.05 - Fire Protection Team Inspection (FPTI) Structures, Systems, and Components (SSCs) Credited for Fire Prevention, Detection, Suppression, or Post-Fire Safe Shutdown Review (IP Section 03.01)
The inspectors verified that components and/or systems will function as required to support the credited functions stated for each sample. Additional inspection considerations are located in the fire hazards analysis or safe shutdown analysis.
- (1) Verified that operator actions can be accomplished as assumed in the fire probabilistic risk assessment analysis and safe shutdown analysis.
- (2) Walked down the fire water system components including the fire water tank and fire pumps to inspect for deficient conditions.
- (3) Evaluated readiness of the carbon dioxide fire suppression system protecting the essential switchgear rooms (Fire Areas 5A and 5B) in Unit 2.
- (4) Ensured that post maintenance and surveillance activities for the selected fire areas and fire water systems were performed as scheduled.
Fire Protection Program Administrative Controls (IP Section 03.02) (2 Samples)
The inspectors verified that the selected control or process is implemented in accordance with the licensees current licensing basis. If applicable, ensure that the fire protection program contains adequate procedures to implement the selected administrative control.
Verify that the selected administrative control meets the requirements of all committed industry standards.
- (1) Reviewed administrative controls of hot work, transient combustibles, and fire impairments.
- (2) Ensured that the fire brigade training program met requirements and readiness of the licensee to combat fires.
Fire Protection Program Changes/Modifications (IP Section 03.03) (2 Samples)
The inspectors evaluated the licensee's procedures controlling modifications and procedure revisions for adequacy in reviewing potential impacts to the fire protection program.
- (1) Reviewed fire protection configuration review requests associated with plant modifications.
- (2) Reviewed fire protection change review requests associated with procedure changes.
INSPECTION RESULTS
No findings were identified.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
- On April 16, 2021, the inspectors presented the triennial fire protection inspection results to Mr. Todd Horton, Senior Vice President, Site Operations and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection Type Designation Description or Title Revision or
Procedure Date
71111.21N.05 Calculations 13-MC-FP-0316 10 CFR 50, Appendix R, Manual Action Feasibility 12
13-MC-FP-0317 10 CFR 50, Appendix R, Operational Considerations 11
13-MC-FP-0318 10 CFR 50, Appendix R, III.G/III.L Compliance 13
Assessment
13-MC-FP-0320 10 CFR 50, Appendix R, Multiple Spurious Operations 0
Analysis
13-NS-F001 Fire Probabilistic Risk Assessment - Plant Boundary 1
Definition and Partitioning
13-NS-F002 Fire Probabilistic Risk Assessment - Equipment Selection 1
13-NS-F004 Fire Probabilistic Risk Assessment - Quantification and 1
Screenings
13-NS-F006 Fire Probabilistic Risk Assessment - Ignition Frequencies 1
Analysis
13-NS-F007 Fire Probabilistic Risk Assessment - Zone of Influence 1
(ZOI)
13-NS-F009 Fire Probabilistic Risk Assessment - Fire Scenario 1
Selection and Seismic-Fire Interactions (FSS/SF)
13-NS-F010 Fire Probabilistic Risk Assessment - Post-Fire Human 1
Reliability Analysis (HRA)
NN345-A00021 Evaluation of the Development and Timing of Hot Gas 0
Layer Conditions in Generic Palo Verde Fire
Compartments with Secondary Combustibles (0001-0014-
2-002, R1)
TA-13-C00-2000- CENTS Computer Code Analysis of the 10 CFR 50, 3
004 Appendix R, Fire Protection Scenarios
Corrective Action 19-05839, 19-09863, 19-09864, 19-09865, 19-09878
Documents
Corrective Action 21-03715, 21-03723, 21-03739, 21-03740, 21-04029
Documents
Resulting from
Inspection
Drawings Chemical Volume Control System Overview 04/2020
Inspection Type Designation Description or Title Revision or
Procedure Date
01-M-FPP-002, P & I Diagram - Fire Protection System 19
Sheet 1
01-M-FPP-003 P & I Diagram - Fire Protection System 23
01-M-FPP-006 P & I Diagram - Fire Protection System 16
2-M-AFP-001, P & I Diagram - Auxiliary Feedwater System 35
Sheet 1 of 2
2-M-AFP-001, P & I Diagram - Auxiliary Feedwater System 35
Sheet 2 of 2
2-M-EWP-001 P & I Diagram - Essential Cooling Water System 28
2-M-FPP-002, P & I Diagram - Fire Protection System 18
Sheet 1
2-M-FPP-003 P & I Diagram - Fire Protection System 18
2-M-FPP-004 P & I Diagram - Fire Protection System (CO2 System) 9
2-M-FPP-006 P & I Diagram - Fire Protection System 14
2-M-NCP-001 P & I Diagram - Nuclear Cooling Water System 17
2-M-NCP-002 P & I Diagram - Nuclear Cooling Water System 13
2-M-NCP-003 P & I Diagram - Nuclear Cooling Water System 13
2-M-SIP-001 P & I Diagram Safety Injection & Shutdown Cooling 55
System
2-W-HJP-001 P & I Diagram - Control Building Heating, Ventilation, and 21
Air Conditioning
03-M-FPP-002 P & I Diagram - Fire Protection System 15
03-M-FPP-003 P & I Diagram - Fire Protection System 19
03-M-FPP-006 P & I Diagram - Fire Protection System 16
13-A-ZYD-029, Fire Protection Control Building Floor Plan at Elevation 23
Sheet 2 100' - 0", Level 1
13-E-MAA-001 Main Single Line Diagram 31
AO-M-FPP-001 P & I Diagram - Fire Protection System 39
Engineering 07-00110-004 Strategic Modernization Program Ovation Distributed 1
Changes Control System Infrastructure and Cyber Security System
19-00424-002 The TCCP# 5048813 in U1 Fuel Building that's being use 01/29/19
for L-Insert Spent Fuel Pool (SFP) PC-1678 modification
(DMWO 4887256)
Inspection Type Designation Description or Title Revision or
Procedure Date
20-00424 13-MC-FP-0803 16
EDC 2019-00674 Fire Protection Change Regulatory Review 4
Engineering 18-10070-003 EWR to Further Evaluate Penetration Seal 07/24/18
Evaluations 20-07630-003 Review Technical Issue Notifications for the Fire 06/09/2020
Protection EST3 and Fireworks System
20-14739-001 NRC Information Notice (IN) 2020-03, Recall of 11/10/2020
Mechanical Rate of Rise and Fixed Temperature Heat
Detectors
20-16734-001 NRC Information Notice (IN) 2020-04, Operating 12/28/2020
Experience Related to Failure of Buried Fire Protection
Main Yard Piping
EE 17-15769-001 Fire Protection Change Regulatory Review (FPCRR) 1
EE 18-08959-002 Fire Protection Change Regulatory Review (FPCRR) 2
EE 19-01360-056 Fire Protection Change Regulatory Review (FPCRR) 5
Miscellaneous Fire Protection Design Basis Manual 15
List of Modifications Associated with Fire Protection
Licensing Alternatives for Resolution of Operator Manual 05/12/2012
Actions (OMAs) for Multiple Spurious Operations (MSOs)
Top 10 risk significant systems from the Fire Probabilistic 01/21/2021
Risk Assessment based on contribution to core damage
frequency and on contribution to large early release
frequency
Description of fire modeling key inputs and associated
studies related to essential switchgear room Train A and
the turbine-driven auxiliary feedwater pump
24831 CAFTA - Fault Tree Analysis System, Version 6.0 12/2021
13-LS-A112 PVNGS Aging Management Program Evaluation Report - 0
Fire Protection-B.2.1.12, NUGEG 1801 Program XI.M26
13-LS-A113 PVNGS Aging Management Program Evaluation Report- 0
Fire Water System-B2.1.13, NUREG 1801 Program
XI.M27
13-LS-A116 PVNGS Aging Management Program Evaluation Report- 2
One Time Inspection -B2.1.16, NUREG 1801 Program
XI.M32
Inspection Type Designation Description or Title Revision or
Procedure Date
13-LS-A117 PVNGS Aging Management Program Evaluation Report- 1
Selective Leaching of Materials-B2.1.17, NUREG
Program XI.M33
13-LS-A118 PVNGS Aging Management Program Evaluation Report- 0
Buried Piping and Tanks Inspection-B2.1.18, NUREG 1801 Program XI.M34
13-MS-A83 NFPA Code Applicability and Conformance Review 9
3002010659 FRANX Software Manual, Version 4.4 07/2017
NLR20S010402 Licensed Operator Continuing Training Simulator 01/16/2020
Scenario
NLR21S020400 Licensed Operator Continuing Training Simulator 02/23/2021
Scenario
NNR20C050600 Non-Licensed Operator Continuing Training Simulator 08/12/2020
Scenario
NUREG/CR- EPRI/NRC-RES Fire PRA Methodology for Nuclear Power 09/2005
6850, v1 Facilities, Volume 1: Summary & Overview
NUREG/CR- EPRI/NRC-RES Fire PRA Methodology for Nuclear Power 09/2005
6850, v2 Facilities, Volume 2: Detailed Methodology
PR-0904 Fire Protection Program Requirement Description 2
Supplement 1 to Fire Probabilistic Risk Assessment Methods 12/2009
NUREG/CR-6850 Enhancements
Technical Fire Protection 62
Requirements
Manual Section
T3.11
Procedures 14DP-0FP01 Firewatch Requirements 14
14DP-0FP01 Firewatch Requirements 14
14DP-0FP02 Fire System Impairments and Notifications 26
14DP-0FP02 Fire Systems Impairments and Notifications 26
14DP-0FP13 Fire Protection System Status Control 14
14DP-0FP33 Control of Transient Combustibles 31
14DP-0FP36 Hot Work Permit 24
14DP-0FP43 Fire Protection Program Responsibilities, Authorities, and 2
Management Expectations
Inspection Type Designation Description or Title Revision or
Procedure Date
14DP-0FP44 Fire Protection Test Program Requirement 5
14DP-0FP46 Fire Protection Impact Screening 2
14DP-0TR01 Fire Department Training Program Description 22
14DP-0TR02 Fire Department Training Program Administration 30
14FT-0FP04 Annual Fire Water Loop Test 25
14FT-0FP05 Monthly Diesel Driven Fire Pump Start and Run 25
14FT-0FP34 Fire Hydrant Street Key Flush & Post Indicator Valve 2
Operational Testing Water Reclamation Facility
14FT-1FP02 Motor Driven Fire Pump Start and Run 14
14FT-2FP03 Fire Water Valve Verification 17
14FT-2FP04 Fire Protection Valve Cycling 16
14FT-2FP05 Unit 2 Wet Pipe, Deluge and Pre-Action System 3
Inspection
14FT-2FP34 Fire Hydrant Street Key Flush & Post Indicator Valve 2
Operational Testing Unit 2
14FT-9FP04 Annual Fire Pump Test 19
14FT-9FP08 CO2 Fire Suppression System Functional Test 19 & 21
14FT-9FP28 FPN-Spray and/or Sprinkler System Functional Test 24
14FT-9FP29 CO2 Fire Suppression System Valve and Test Switch 10
Position Verification
14FT-9FP65 Appendix R/FTS Fire Barrier Surveillance (for Walls, 14
Floors/Ceilings and Raceways)
1DP-0FP38 Fire Protection Test Program 17
2DP-0AC03 Digital Assessments 5
33FT-9FP01 Appendix R and Technical Requirements Manual Fire 11
Damper Surveillance
38FT-9QK14 Fire Detection/Protection System Supervised Circuits Test 14
and Functional Test - Carbon Dioxide Panels
3FT-9FP04 Appendix A Fire Damper Surveillance Test 11
40AO-9ZZ19 Control Room Fire 42
40DP--9ZZ04 Time Critical Action (TCA) Program 16
40DP-9ZZ17 Control of Doors, Hatches and Floor Plugs 65
73DP-9EE05 One-Time Inspection Program 2
Inspection Type Designation Description or Title Revision or
Procedure Date
73DP-9EE06 One-Time Inspection for Selective Leaching Degradation 3
of Components
73DP-9EE07 Internal Surfaces Inspection 1
81DP-0DC17 Temporary Configuration Changes 45
81DP-0EE02 Design Change Request 16
81DP-0EE10 Design Change Process 49
81DP-0ZZ01 Civil System, Structure, and Component Monitoring 25
Program
83DP-0AP01 Buried Piping and Tanks Program 9
IP-ENG-001 Standard Design Process Overview 2
PR-0904 Program Requirement Description - Fire Protection 2
STP M-65 Sprinkler/Deluge System Visual Verifications 22
Work Orders 2765970, 4443275, 4580980, 4946829, 4946860,
4973747, 4973749, 4981416, 5007899, 5007900,
5030240, 5048552, 5065781, 5071664, 5072404,
5073224, 5074929, 5091039, 5152582, 5156565,
5164350, 5164555, 5167697, 5169459, 5173126,
5178911, 5179302, 5180651, 5182685, 5183112,
5189568, 5264169, 5317536, 5319595
10