IR 05000331/2020001
| ML20175A122 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 06/22/2020 |
| From: | Billy Dickson Division Reactor Projects III |
| To: | Dean Curtland NextEra Energy Duane Arnold |
| Shared Package | |
| ML2017A147 | List: |
| References | |
| IR 2020001 | |
| Download: ML20175A122 (14) | |
Text
June 22, 2020
SUBJECT:
REISSUE - DUANE ARNOLD ENERGY CENTER - INTEGRATED INSPECTION REPORT 05000331/2020001
Dear Mr. Curtland:
The NRC identified that the inspection report sent to you dated May 11, 2020, (ML20132A266)
inadvertently failed to document the completion of an annual inspection sample of the 71152 inspection procedure. As a result, the NRC is reissuing the report in its entirety with the updated subject. None of these changes affected the technical content of the report.
On March 31, 2020, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Duane Arnold Energy Center. On April 16, 2020, the NRC inspectors discussed the results of this inspection with Mr. M. Davis, Licensing Manager, 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 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely,
/RA by April Nguyen for/
Billy C. Dickson, Jr., Chief Branch 2 Division of Reactor Projects
Docket No. 05000331 License No. DPR-49
Enclosure:
As stated
Inspection Report
Docket Number:
05000331
License Number:
Report Number:
Enterprise Identifier: I-2020-001-0046
Licensee:
NextEra Energy Duane Arnold, LLC
Facility:
Duane Arnold Energy Center
Location:
Palo, Iowa
Inspection Dates:
January 01, 2020 to March 31, 2020
Inspectors:
R. Edwards, Senior Health Physicist
V. Myers, Senior Health Physicist
C. Norton, Senior Resident Inspector
T. Ospino, Reactor Engineer
J. Rutkowski, Project Engineer
Approved By:
Billy C. Dickson, Jr., Chief
Branch 2
Division of Reactor Projects
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an integrated inspection at Duane Arnold Energy Center, 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.
PLANT STATUS
The Unit began the inspection period at rated thermal power. On February 15, 2020, the unit was down powered to 60 percent power for a control rod sequence exchange. The unit was returned to full power on February 16, 2020, and remained at or near rated thermal power for the remainder of the 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/readingrm/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. From January 1 - March 19, 2020, the inspectors performed plant status activities described in IMC 2515, Appendix D, Plant Status, and conducted routine reviews using IP 71152, Problem Identification and Resolution. 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 inspectors were directed to begin telework and to remotely access licensee information using available technology. During this time the resident inspectors performed periodic site visits each week and during that time conducted plant status activities as described in IMC 2515, Appendix D; and observed risk significant activities when warranted. In addition, resident and regional baseline inspections were evaluated to determine if all or portion of the objectives and requirements stated in the IP could be performed remotely. If the inspections could be performed remotely, they were conducted per the applicable IP. In the cases where it was determined the objectives and requirements could not be performed remotely, management elected to postpone and reschedule the inspection to a later date.
REACTOR SAFETY
71111.04 - Equipment Alignment
Partial Walkdown Sample (IP Section 03.01) (1 Sample)
The inspectors evaluated system configurations during partial walkdowns of the following systems/trains:
- (1) Standby liquid control system on March 10, 2020
71111.05 - Fire Protection
Fire Area Walkdown and Inspection Sample (IP Section 03.01) (4 Samples)
The inspectors evaluated the implementation of the fire protection program by conducting a walkdown and performing a review to verify program compliance, equipment functionality, material condition, and operational readiness of the following fire areas:
- (1) Low Level Radioactive Waste Processing and Storage Facility Elevation 757 South Fire Zones 21-G and 21-N on March 6, 2020
- (2) Reactor Building Elevation 786 Fire Zones 3-A and 3-B on March 10, 2020
- (3) Radwaste Building Fire Zones 13-A, 13-B, and 13-C on March 11, 2020
- (4) Turbine Building Elevation 757 Fire Zones 8-A, 8-B, 8-D, 8-F and 8-H on March 16, 2020
71111.11Q - Licensed Operator Requalification Program and Licensed Operator Performance
Licensed Operator Performance in the Actual Plant/Main Control Room (IP Section 03.01) (1 Sample)
- (1) The inspectors observed and evaluated a reactor plant power evolution and rod sequence exchange on February 15, 2020
Licensed Operator Requalification Training/Examinations (IP Section 03.02) (1 Sample)
- (1) The inspectors observed and evaluated licensed operator requalification training and activities on March 10, 2020
71111.13 - Maintenance Risk Assessments and Emergent Work Control
Risk Assessment and Management Sample (IP Section 03.01) (3 Samples)
The inspectors evaluated the accuracy and completeness of risk assessments for the following planned and emergent work activities to ensure configuration changes and appropriate work controls were addressed:
- (1) Emergent work on torus spray and cooling supply header isolation valve on January 7, 2020
- (2) Planned work on the 'A' control rod drive pump speed increaser on February 4, 2020
- (3) Planned work on the Reactor Core Isolation Cooling (RCIC) system on February 24, 2020
71111.15 - Operability Determinations and Functionality Assessments
Operability Determination or Functionality Assessment (IP Section 03.01) (3 Samples)
The inspectors evaluated the licensee's justifications and actions associated with the following operability determinations and functionality assessments:
- (1) Condition Report (CR) 02343529, Kaman equipment not operable on February 5, 2020
- (2) CR 02343787, Part 21 drywell accident range radiation monitor on February 7, 2020
- (3) CR 02347414, High Pressure Coolant Injection (HPCI) system room exhaust fan outboard belt beginning to fail on March 6, 2020
71111.18 - Plant Modifications
Temporary Modifications and/or Permanent Modifications (IP Section 03.01 and/or 03.02) (1 Sample)
The inspectors evaluated the following temporary or permanent modifications:
(1)
'A' and 'B' fuel pool demineralizers flow recording controllers replaced with low indicating recorders on February 19, 2020
71111.19 - Post-Maintenance Testing
Post-Maintenance Test Sample (IP Section 03.01) (5 Samples)
The inspectors evaluated the following post maintenance test activities to verify system operability and functionality:
- (1) Following inboard and outboard torus vent valve seal pressure indicators reconfiguration on January 30, 2020
- (2) Following 'A' control rod drive pump speed changer maintenance on February 4, 2020
- (3) Following replacement of reactor building door 280 on February 26, 2020
- (4) Following oil change on the 'B' fuel pool pump on January 22, 2020
- (5) Following modification to replace 'B' fuel pool demineralizer flow indicating recorder with a flow indicating controller on January 22, 2020
71111.22 - Surveillance Testing
The inspectors evaluated the following surveillance tests:
Surveillance Tests (other) (IP Section 03.01)
- (1) In field activities associated with the pressure suppression chamber to reactor building vacuum breaker operability test on January 7, 2020
- (2) In field activities associated with the HPCI system operability test on January 14, 2020
- (3) In field activities associated with the Low Pressure Coolant Injection (LPCI) system operability test on January 27, 2020
- (4) In field activities associated with the fuel pool liner monitoring test on January 27, 2020
- (5) In field activities associated with repositioning torus to reactor building vacuum breaker T-seal pressure indicators on January 29, 2020
- (6) Functional test of turbine stop valve closure input to the reactor protection system and recirculation pump trip logic on February 15, 2020
- (7) In field activities associated with the Standby Liquid Control (SBLC) pump operability test on March 10, 2020
- (8) In field activities associated with the 'B' standby diesel generator operability test (fast start) on March 11, 2020
71114.06 - Drill Evaluation
Select Emergency Preparedness Drills and/or Training for Observation (IP Section 03.01) (1 Sample)
- (1) The inspectors evaluated the emergency response organization training drill on March 4,
RADIATION SAFETY
71124.05 - Radiation Monitoring Instrumentation
Walk Downs and Observations (IP Section 02.01) (1 Sample)
The inspectors evaluated the following radiation detection instrumentation during plant walkdowns:
- (1) Portable Survey Instruments
- Ludlum 177, serial number 342940
- Mirion Telepole II, serial number 228316-027
- Ludlum 26, serial number HP3508
- Ludlum 12-4, serial number 326388
- Ludlum 9-3, serial number 343228
Source Check Demonstration
- Ludlum 177, serial number 342940
- Mirion Telepole II, serial number 228316-027
- Ludlum 26, serial number HP3508
Area Radiation Monitors and Continuous Air Monitors
- RE-9167, reactor building railroad access area
- RE-9177, clean up phase separator area
- RE-9156, reactor water clean up pump rooms
- AMS-4, low level radioactive waste storage and processing facility
- AMS-4, refuel floor
Personnel Contamination Monitors, Portal Monitors and Small Article Monitors
- Argos-5AB, serial number 308
- Cronos-1, serial number 215
- Gem 5, serial number 366
Calibration and Testing Program (IP Section 02.02) (1 Partial)
The inspectors evaluated the calibration and testing of the following radiation detection instruments:
(1)
(Partial)
- Whole body counter calibration on May 8, 2019
- AMP 100, serial number 5012-014, calibration on September 13, 2019
- Argos-5AB, serial number 308, calibration on July 9, 2019
- RE-9156, reactor water clean up pump rooms area monitor, calibration on June 12,
OTHER ACTIVITIES - BASELINE
===71151 - Performance Indicator Verification
The inspectors verified licensee performance indicators submittals listed below:
IE01: Unplanned Scrams per 7000 Critical Hours Sample (IP Section 02.01)===
- (1) Unit 1 (January 1, 2019 to December 31, 2019)
IE03: Unplanned Power Changes per 7000 Critical Hours Sample (IP Section 02.02) (1 Sample)
- (1) Unit 1 (January 1, 2019 to December 31, 2019)
IE04: Unplanned Scrams with Complications (USwC) Sample (IP Section 02.03) (1 Sample)
- (1) Unit 1 (January 1, 2019 to December 31, 2019)
71152 - Problem Identification and Resolution
Annual Follow-up of Selected Issues (IP Section 02.03) (1 Sample)
The inspectors reviewed the licensees implementation of its corrective action program related to the following issues:
- (1) The inspectors reviewed the licensees corrective actions associated with inaccurate documentation on February 3, 2020
71153 - Follow-up of Events and Notices of Enforcement Discretion Reporting (IP Section 03.05)
- (1) The inspectors reviewed the circumstances surrounding Event Notification 54528, transport of a potentially contaminated person to a medical facility on February 18,
INSPECTION RESULTS
Observation: Licensee Documentation Observation 71152 During the 2019 fourth quarter, while performing reviews associated with baseline inspection activities, the inspectors identified several documentation issues. These issues included operational logging errors, missing signatures in surveillance test procedures and work orders, and inaccurate date and time notations. Although individual performance deficiencies associated with these documentation issues were minor, they were numerous, demonstrated a lack of attention-to-detail, and made it difficult to track the work performed. During the 2019 fourth quarter exit, the inspectors informed the licensee that the inspectors would conduct a Problem Identification and Resolution (PIR), inspection during the first quarter of 2020 and assess Duane Arnold's corrective actions to improve the quality of documentation.
During the week of January 19, 2020, the inspectors conducted a PIR inspection of the documentation associated with the maintenance window on the B control building chiller.
This work activity was chosen because it was complex and included coordination among multiple work groups. The inspectors noted a profound improvement in documentation quality over the 2019 fourth quarter that included:
1. reduced logging errors,
2. appropriate work and review signatures, and
3. improved time and date notations when work was repeated or handed off between
workers.
The inspectors concluded the licensee changed behaviors to sustain document quality improvements that includes:
1. call outs at plan-of-the-day meetings,
2. emphasis on documentation quality during shop briefings, and
3. nuclear assurance review of documentation quality.
EXIT MEETINGS AND DEBRIEFS
The inspectors confirmed that proprietary information was controlled to protect from public disclosure.
- On April 16, 2020, the inspectors presented the integrated inspection results to Mr. M. Davis, Licensing Manager, and other members of the licensee staff.
- On March 19, 2020, the inspectors presented the radiation protection program inspection results to Mr. D. Curtland, Director of Site Operations, and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Fire Plans
Pre-Fire Plan LLRPSF
Pre-Fire Plan Reactor Building Elevation 786
Pre-Fire Plan Radwaste Building
Pre-Fire Plan Turbine Building Elevation 757
71111.11Q Miscellaneous
Reactivity Management Plan Down Power for February 2020
Control Rod Sequence Exchange
01/22/2020
SEG 2020B-01E
Evaluated Scenario
Procedures
Operating
Instruction 264
Reactor Recirculation System
143
Operating
Instruction 856.1
Reactor Manual Control System
Corrective Action
Documents
Condition Report
(CR) 02340151
Handswitch has Intermittent Contact for MO2005
01/06/2020
Miscellaneous
Operations Logs
2/24/2020
Operations Logs
01/06/2020
Duane Arnold Station Daily Status Report
2/24/2020
VALOP-L200-08
Limitorque Valve Operator Inspection and Lubrication
Procedures
MA-AA-100-1011-
FO1
Troubleshooting, MO2005 did not Open as Expected HS
was Taken to Open
01/06/2020
Work Orders
40659928-01
IP209 A-G, Inspect and Oil Change
MO, 2405-0, Elect Lube and Inspect
Corrective Action
Documents
CR 02343529
Kaman Equipment not Operable
CR 02343787
Part 21 Drywell Accident Range Radiation Monitor
CR 02347414
HPCI System Room Exhaust Fan Outboard Belt Beginning
to Fail
Engineering
Changes
Replace FRC-
3511A(B)
Replace FRC-3511A(B), Fuel Pool F/D IT-206A(B) Effluent
Flow Controllers
Miscellaneous
2nd Assistant Logs
Miscellaneous
APED-G41-2929-
047, Fuel Pool
Demineralizers
Control Panel
Fuel Pool Demineralizers Control Panel
APED-G41-2929-
049 Sheet 1
Fuel Pool Demineralizers Electric Schematic, Filter 'A'
APED-G41-2929-
049 Sheet 2
Fuel Pool Demineralizers Electric Schematic, Filter 'B'
APED-G41-2929-
056
Fuel Pool Demineralizers Control Panel Wiring
APED-G41-2929-
058
Fuel Pool F/D System, Withdraw Drawing
Bech-M135
P&ID Fuel Pool Demineralizer System
Procedures
Operating
Instruction 435
Fuel Pool Cooling System
Work Orders
Replace FRC 3511 by EC 287976
Miscellaneous
GMP-Test-54
des Mid/High Range Leak Rate Monitor (LRM) Sec C
Procedures
STP 3.6.1.3-
2CAC
CAC, PCIS, and ASME Valve Functional Test
STP NS700002A
Secondary Containment Test Using SBGT 'A'
Work Orders
40658036-01
STP 3.6.1.3-02CAC, PCIS, and ASME Valve Functional
Test
40659928-01
IP209 A-G, Inspect and Oil Change
40695659-01
PI4300: Reconfigure Orientation
Procedures
PCP 2.41
Fuel Pool Liner Monitoring
Corrective Action
Documents
Condition Report
(CR) 02342593
Torus Water Temperature Difference Between Recorders at
Maximum Difference
01/27/2020
CR 02344750
Z19011 Indication During STP 3.3.1.1-19
CR 02348061
PSV3252B Leaking from Valve Cap
03/11/2020
Miscellaneous
Pictures of PI-4300
Procedures
NS490003A
'A' RHR System Leakage Inspection Walkdown
STP 3.3.1.1-19
Functional Test of TSV Closure Input to RPS and RPT
STP 3.5.1-02A
A LPCI System Operability Test
STP 3.5.1-05
HPCI System Operability Test
STP 3.6.1.3-
2CAC
CAC PCIS and ASME Valve Functional Test
STP 3.6.1.6-01
Pressure Suppression Chamber to Reactor Building Vacuum
Breaker Operability Test
STP NS520001
HPCI System Leakage Inspection Walkdown
WM-AA-1000-F01 Work Activity Risk Evaluation Form
Work Orders
40654043
Pressure Suppression Chamber Reactor Building Vacuum
Breaker Operability Test
40655944-01
STP 3.5.1-05 HPCI System Operability Test
40658036-01
STP 3.6.1.3-02CAC PCIS and ASME Valve Functional Test
40658042-01
STP 3.5.1-02 LCPI System Operability Test
40661313
Standby Liquid Control Pump Operability Test
03/10/2020
40664416-01
STP 3.8.1-06B 'B' SBDG Operability Test (Fast Start)
03/11/2020
40695659-01
P14300: Reconfigure Orientation
Corrective Action
Documents
2347183
20 Drill Observations Not Covered by Drill Critique
03/04/2020
2347187
20 Drill Note 5 Information Communication
03/04/2020
2347205
20 Drill Question on Issuing Potassium Iodide
03/04/2020
Miscellaneous
NOTE-5
Duane Arnold Energy Center Emergency Notification
Procedures
EPIP 3.3
Dose Assessment and Protective Actions
EPIP 4.5
Administration of Potassium Iodide
Calibration
Records
Ortec Whole Body Counter
05/08/2019
AMP-100 Serial Number 5012-014
09/13/2019
Argos-5AB Serial Number 308
07/09/2019
Procedures
HPP 3109.87
Operation of the Argos 5AB Personnel Contamination
Monitor
Work Orders
40381701
RE9156: Reactor Water Clean Up Pump Rooms A and B
06/12/2016
71151
Miscellaneous
NG-001L
NRC PI Data Calculation, Review and Approval
07/08/2019
NG-001L
NRC PI Data Calculation, Review and Approval
04/16/2019
NG-001L
NRC PI Data Calculation, Review and Approval
10/14/2019
NDE Reports
NG-001L
NRC PI Data Calculation, Review and Approval
01/17/2020
Miscellaneous
January 12-17, 2020 DAEC Operational Logs
Procedures
Clearance - 3002,
I/16924B
Clearance 3000 -
1VAC308B-02
Control Building Air Conditioning Unit, CB Heating,
Ventilation, and Air Conditioning (HVAC) Room
Clearance 3000 -
1VCP030B
Control Building HVAC Chilled Water Pump, North Open
Area
Clearance 3000 -
1VRF030B
Control Building HVAC Return Air Fan, CB HVAC Room
Work Orders
40603853-01
1VCP030B: Rebuild Pump
40603853-02
40634094-01
I/16924B: Calibrate
40655395-01
1VAC030B: Inspect and Lube Unit
40656453-01
1VRF030B: MA, Inspect Unit and Lube BRG
406566918-01
PS6933B: Inspect and Calibrate
40656919-01
PS6930B: Inspect and Calibrate, High Pressure Safety
Switch
40671140-01
STP 3.7.5-01-B, 'B' Control Building Chiller Operability
40671140-02
B2: Swap to 'B' Chiller
40688611-01
1VCH001B: Inspection with ESW Secured
Corrective Action
Documents
CR 02344843
Medical Emergency
2/17/2020
CR 02344897
Security Medical Response SEL 20-11
2/17/2020
Miscellaneous
Event Notification
(EN) 54528
Transport of Potentially Contaminated Person to a Medical
Facility
0