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 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:
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
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
Procedure
Type
Designation
Description or Title
Revision or
Date
71111.21N.05 Calculations
13-MC-FP-0316
CFR 50, Appendix R, Manual Action Feasibility
13-MC-FP-0317
CFR 50, Appendix R, Operational Considerations
13-MC-FP-0318
CFR 50, Appendix R, III.G/III.L Compliance
Assessment
13-MC-FP-0320
CFR 50, Appendix R, Multiple Spurious Operations
Analysis
13-NS-F001
Fire Probabilistic Risk Assessment - Plant Boundary
Definition and Partitioning
13-NS-F002
Fire Probabilistic Risk Assessment - Equipment Selection
13-NS-F004
Fire Probabilistic Risk Assessment - Quantification and
Screenings
13-NS-F006
Fire Probabilistic Risk Assessment - Ignition Frequencies
Analysis
13-NS-F007
Fire Probabilistic Risk Assessment - Zone of Influence
(ZOI)
13-NS-F009
Fire Probabilistic Risk Assessment - Fire Scenario
Selection and Seismic-Fire Interactions (FSS/SF)
13-NS-F010
Fire Probabilistic Risk Assessment - Post-Fire Human
Reliability Analysis (HRA)
NN345-A00021
Evaluation of the Development and Timing of Hot Gas
Layer Conditions in Generic Palo Verde Fire
Compartments with Secondary Combustibles (0001-0014-
2-002, R1)
TA-13-C00-2000-
004
CENTS Computer Code Analysis of the 10 CFR 50,
Appendix R, Fire Protection Scenarios
Corrective Action
Documents
19-05839, 19-09863, 19-09864, 19-09865, 19-09878
Corrective Action
Documents
Resulting from
Inspection
21-03715, 21-03723, 21-03739, 21-03740, 21-04029
Drawings
Chemical Volume Control System Overview
04/2020
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
01-M-FPP-002,
Sheet 1
P & I Diagram - Fire Protection System
01-M-FPP-003
P & I Diagram - Fire Protection System
01-M-FPP-006
P & I Diagram - Fire Protection System
2-M-AFP-001,
Sheet 1 of 2
P & I Diagram - Auxiliary Feedwater System
2-M-AFP-001,
Sheet 2 of 2
P & I Diagram - Auxiliary Feedwater System
2-M-EWP-001
P & I Diagram - Essential Cooling Water System
2-M-FPP-002,
Sheet 1
P & I Diagram - Fire Protection System
2-M-FPP-003
P & I Diagram - Fire Protection System
2-M-FPP-004
P & I Diagram - Fire Protection System (CO2 System)
2-M-FPP-006
P & I Diagram - Fire Protection System
2-M-NCP-001
P & I Diagram - Nuclear Cooling Water System
2-M-NCP-002
P & I Diagram - Nuclear Cooling Water System
2-M-NCP-003
P & I Diagram - Nuclear Cooling Water System
2-M-SIP-001
P & I Diagram Safety Injection & Shutdown Cooling
System
2-W-HJP-001
P & I Diagram - Control Building Heating, Ventilation, and
Air Conditioning
03-M-FPP-002
P & I Diagram - Fire Protection System
03-M-FPP-003
P & I Diagram - Fire Protection System
03-M-FPP-006
P & I Diagram - Fire Protection System
13-A-ZYD-029,
Sheet 2
Fire Protection Control Building Floor Plan at Elevation
100' - 0", Level 1
13-E-MAA-001
Main Single Line Diagram
AO-M-FPP-001
P & I Diagram - Fire Protection System
Engineering
Changes
07-00110-004
Strategic Modernization Program Ovation Distributed
Control System Infrastructure and Cyber Security System
19-00424-002
The TCCP# 5048813 in U1 Fuel Building that's being use
for L-Insert Spent Fuel Pool (SFP) PC-1678 modification
(DMWO 4887256)
01/29/19
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
20-00424
13-MC-FP-0803
EDC 2019-00674
Fire Protection Change Regulatory Review
Engineering
Evaluations
18-10070-003
EWR to Further Evaluate Penetration Seal
07/24/18
20-07630-003
Review Technical Issue Notifications for the Fire
Protection EST3 and Fireworks System
06/09/2020
20-14739-001
NRC Information Notice (IN) 2020-03, Recall of
Mechanical Rate of Rise and Fixed Temperature Heat
Detectors
11/10/2020
20-16734-001
NRC Information Notice (IN) 2020-04, Operating
Experience Related to Failure of Buried Fire Protection
Main Yard Piping
2/28/2020
EE 17-15769-001
Fire Protection Change Regulatory Review (FPCRR)
EE 18-08959-002
Fire Protection Change Regulatory Review (FPCRR)
EE 19-01360-056
Fire Protection Change Regulatory Review (FPCRR)
Miscellaneous
Fire Protection Design Basis Manual
List of Modifications Associated with Fire Protection
Licensing Alternatives for Resolution of Operator Manual
Actions (OMAs) for Multiple Spurious Operations (MSOs)
05/12/2012
Top 10 risk significant systems from the Fire Probabilistic
Risk Assessment based on contribution to core damage
frequency and on contribution to large early release
frequency
01/21/2021
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
2/2021
13-LS-A112
PVNGS Aging Management Program Evaluation Report -
Fire Protection-B.2.1.12, NUGEG 1801 Program XI.M26
13-LS-A113
PVNGS Aging Management Program Evaluation Report-
Fire Water System-B2.1.13, NUREG 1801 Program
XI.M27
13-LS-A116
PVNGS Aging Management Program Evaluation Report-
One Time Inspection -B2.1.16, NUREG 1801 Program
XI.M32
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
13-LS-A117
PVNGS Aging Management Program Evaluation Report-
Selective Leaching of Materials-B2.1.17, NUREG
Program XI.M33
13-LS-A118
PVNGS Aging Management Program Evaluation Report-
Buried Piping and Tanks Inspection-B2.1.18, NUREG 1801 Program XI.M34
13-MS-A83
NFPA Code Applicability and Conformance Review
3002010659
FRANX Software Manual, Version 4.4
07/2017
NLR20S010402
Licensed Operator Continuing Training Simulator
Scenario
01/16/2020
NLR21S020400
Licensed Operator Continuing Training Simulator
Scenario
2/23/2021
NNR20C050600
Non-Licensed Operator Continuing Training Simulator
Scenario
08/12/2020
NUREG/CR-
6850, v1
EPRI/NRC-RES Fire PRA Methodology for Nuclear Power
Facilities, Volume 1: Summary & Overview
09/2005
NUREG/CR-
6850, v2
EPRI/NRC-RES Fire PRA Methodology for Nuclear Power
Facilities, Volume 2: Detailed Methodology
09/2005
PR-0904
Fire Protection Program Requirement Description
Supplement 1 to
Fire Probabilistic Risk Assessment Methods
Enhancements
2/2009
Technical
Requirements
Manual Section
T3.11
Fire Protection
Procedures
Firewatch Requirements
Firewatch Requirements
Fire System Impairments and Notifications
Fire Systems Impairments and Notifications
Fire Protection System Status Control
Control of Transient Combustibles
Hot Work Permit
Fire Protection Program Responsibilities, Authorities, and
Management Expectations
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Fire Protection Test Program Requirement
Fire Protection Impact Screening
Fire Department Training Program Description
Fire Department Training Program Administration
Annual Fire Water Loop Test
Monthly Diesel Driven Fire Pump Start and Run
Fire Hydrant Street Key Flush & Post Indicator Valve
Operational Testing Water Reclamation Facility
Motor Driven Fire Pump Start and Run
Fire Water Valve Verification
Fire Protection Valve Cycling
Unit 2 Wet Pipe, Deluge and Pre-Action System
Inspection
Fire Hydrant Street Key Flush & Post Indicator Valve
Operational Testing Unit 2
Annual Fire Pump Test
CO2 Fire Suppression System Functional Test
& 21
FPN-Spray and/or Sprinkler System Functional Test
CO2 Fire Suppression System Valve and Test Switch
Position Verification
Appendix R/FTS Fire Barrier Surveillance (for Walls,
Floors/Ceilings and Raceways)
Fire Protection Test Program
Digital Assessments
Appendix R and Technical Requirements Manual Fire
Damper Surveillance
Fire Detection/Protection System Supervised Circuits Test
and Functional Test - Carbon Dioxide Panels
Appendix A Fire Damper Surveillance Test
Control Room Fire
40DP--9ZZ04
Time Critical Action (TCA) Program
Control of Doors, Hatches and Floor Plugs
One-Time Inspection Program
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
One-Time Inspection for Selective Leaching Degradation
of Components
Internal Surfaces Inspection
Temporary Configuration Changes
Design Change Request
Design Change Process
Civil System, Structure, and Component Monitoring
Program
Buried Piping and Tanks Program
IP-ENG-001
Standard Design Process Overview
PR-0904
Program Requirement Description - Fire Protection
STP M-65
Sprinkler/Deluge System Visual Verifications
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