IR 05000282/2020004
| ML21035A172 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 02/04/2021 |
| From: | Hironori Peterson NRC/RGN-III |
| To: | Domingos C Nuclear Management Co |
| References | |
| IR 2020004 | |
| Download: ML21035A172 (20) | |
Text
February 4, 2021
SUBJECT:
PRAIRIE ISLAND NUCLEAR GENERATING PLANT - INTEGRATED INSPECTION REPORT 05000282/2020004 AND 05000306/2020004
Dear Mr. Domingos:
On December 31, 2020, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Prairie Island Nuclear Generating Plant. On January 7, 2021, 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.
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/
Hironori Peterson, Chief Branch 3 Division of Reactor Projects
Docket Nos. 05000282 and 05000306 License Nos. DPR-42 and DPR-60
Enclosure:
As stated
Inspection Report
Docket Numbers:
05000282 and 05000306
License Numbers:
Report Numbers:
05000282/2020004 and 05000306/2020004
Enterprise Identifier: I-2020-004-0027
Licensee:
Northern States Power Company
Facility:
Prairie Island Nuclear Generating Plant
Location:
Welch, Minnesota
Inspection Dates:
October 01, 2020 to December 31, 2020
Inspectors:
S. Bell, Health Physicist
M. Garza, Emergency Preparedness Inspector
L. Haeg, Project Manager
M. Holmberg, Senior Reactor Inspector
T. McGowan, Resident Inspector
K. Pusateri, Senior Resident Inspector
Approved By:
Hironori Peterson, Chief
Branch 3
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an integrated inspection at Prairie Island Nuclear Generating Plant, 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
Prairie Island Unit 1 began the inspection period shutdown for refueling outage 1R32 and returned to power operation on October 11, 2020 and remained at or near 100 percent power for the remainder of the inspection period with the exception of a brief downpower to approximately 90 percent during feed water system work on December 15, 2020. Prairie Island Unit 2 operated at or near rated thermal power 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 (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 Disease 2019 (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; conducted plant status activities as described in IMC 2515, Appendix D, Plant Status; observed risk-significant activities; and completed on-site portions of IPs. In addition, resident and regional baseline inspections were evaluated to determine if all or portions 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 some cases, portions of an IP were completed remotely and on-site. The inspections documented below met the objectives and requirements for completion of the IP.
REACTOR SAFETY
71111.04 - Equipment Alignment
Partial Walkdown Sample (IP Section 03.01) (2 Samples)
The inspectors evaluated system configurations during partial walkdowns of the following systems/trains:
- (1) Unit 1 A train component cooling system walkdown during D2 fast start on 10/20/2020
- (2) Walkdown on Unit 1 A train safety injection pump on 10/06/2020
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) Fire area 41B 121 electric fire pump room sub-basement on 10/15/2020
- (2) Fire area 26 D2 room during D1 work window on 10/27/2020
- (3) Fire area 31 U1 auxiliary feed water pump room on 10/29/2020
- (4) Fire area 35 battery room #21 during yellow fire risk window on 11/10/2020
Fire Brigade Drill Performance Sample (IP Section 03.02) (1 Sample)
- (1) The inspectors evaluated the onsite fire brigade training and performance during an announced fire drill for fire area 69 turbine building U1 695' on 11/10/2020
71111.07A - Heat Sink Performance
Annual Review (IP Section 03.01) (1 Sample)
The inspectors evaluated readiness and performance of:
- (1) 122 control room chiller on 12/10/2020
===71111.08P - Inservice Inspection Activities (PWR)
PWR Inservice Inspection Activities Sample (IP Section 03.01)===
- (1) The inspectors verified that the reactor coolant system boundary, steam generator tubes, reactor vessel internals, risk-significant piping system boundaries, and containment boundary were appropriately monitored for degradation and that repairs, and replacements were appropriately fabricated, examined and accepted by reviewing the following activities from September 21, 2020 - October 1, 2020:
03.01.a - Nondestructive Examination and Welding Activities.
- Liquid Penetrant (PT) Examination, Integral Attachment H-12, Auxiliary Feedwater System
- PT Examination, Integral Attachment H-1/1A, Reactor Coolant System (Pump No. 11 Casing)
- Visual VT-3 Examination, Pipe Restraint H-12, Auxiliary Feedwater System
- Visual VT-3 Examination, Pipe Supports H-1, H-2 and H-4, Safety Injection System
- Welds 1 and 2, Weld Build-up Repairs, DI Emergency Diesel Generator Heat Exchanger Heads (Work Order 700008169-0180)
- Welds 1 and 6, Replacement of Valves CL-113-2, CL-115-2 and Associated Piping (Work Order 700057958-0010)03.01.c - Pressurized-Water Reactor Boric Acid Corrosion Control Activities.
- Condition Evaluation - Leak 1FT-411-Coolant Loop A Flow Transmitter
- Condition Evaluation - Active Fitting Leak 1PT-124
- Condition Evaluation - Packing Leak at Valve MV-32230
- QIM 501000018751, Leakage Identified by Pressure Test SP 1168.13 Safety Injection System Pressure Test
- QIM 501000017687, 1R31 SP 1392 Unit 1 Insulated Bolted Connection Inspection Pressure Test
- QIM 501000018755, 1R31, SP 1168.10 Residual Heat Removal System Pressure Test
71111.11A - Licensed Operator Requalification Program and Licensed Operator Performance
Requalification Examination Results (IP Section 03.03) (2 Samples)
The inspectors reviewed and evaluated the licensed operator examination failure rates for the requalification annual operating test which was administered between March 10 - 27, 2020 and May 11 - June 5, 2020.
- (1) Morning session simulator training on 12/15/2020
- (2) Reactivity manipulations following FW system work on 12/20/2020
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 licensed operator performance in the Control Room during reactivity manipulations following Feedwater System work on 11/03/2020.
Licensed Operator Requalification Training/Examinations (IP Section 03.02) (1 Sample)
- (1) The inspectors observed and evaluated operator training in the simulator on 12/08/2020.
71111.12 - Maintenance Effectiveness
Maintenance Effectiveness (IP Section 03.01) (1 Sample)
The inspectors evaluated the effectiveness of maintenance to ensure the following structures, systems, and components (SSCs) remain capable of performing their intended function:
- (1) Emergency diesel generator maintenance effectiveness on 11/04/2020
Quality Control (IP Section 03.02) (1 Sample)
The inspectors evaluated the effectiveness of maintenance and quality control activities to ensure the following SSC remains capable of performing its intended function:
- (1) Review of QC program during 1R32 on 10/22/2020
71111.13 - Maintenance Risk Assessments and Emergent Work Control
Risk Assessment and Management Sample (IP Section 03.01) (2 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) Walkdown on Unit 1 B train ECCS during D1 on 11/03/2020 (2)121 control room chiller work protected equipment walkdown PRA review on 12/08/2020
71111.15 - Operability Determinations and Functionality Assessments
Operability Determination or Functionality Assessment (IP Section 03.01) (7 Samples)
The inspectors evaluated the licensee's justifications and actions associated with the following operability determinations and functionality assessments:
- (1) Functionality of 121/122 FLEX diesel-driven submersible pumps on 10/14/2020
- (2) Operability of Bus 16 bus bars with cracks on 10/05/2020
- (3) Unit 1 B loop cold leg PTLR issue on 10/07/2020
- (4) Steam generator PORV controller classification issue on 11/24/2020
- (5) Power range 1N42 calibration issue on 12/02/2020
- (6) Elevated Bus 112 room temperature on 12/08/2020
- (7) Accident source term and steam generator margin to overfill calculations on 12/30/2020
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) Install U1 Sump B Pump Down Temporary Modification on 12/11/2020
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) Unit 1 D1 EDG work window on 11/3/2020 (2)122 FLEX DD submersible pump surveillance with hydraulic hose failure on 10/23/2020
- (3) PMT of D1 diesel generator after fuel injector maintenance and modification on 11/6/2020
- (4) D5 EDG ventilation damper testing following maintenance on 12/02/2020 (5)12 charging pump testing following maintenance on 12/03/2020
71111.20 - Refueling and Other Outage Activities
Refueling/Other Outage Sample (IP Section 03.01) (1 Partial)
(1) (Partial) 1R32
71111.22 - Surveillance Testing
The inspectors evaluated the following surveillance tests:
Inservice Testing (IP Section 03.01)
- (1) SP 1088B Train B safety injection quarterly surveillance on 12/22/2020
RCS Leakage Detection Testing (IP Section 03.01) (1 Sample)
- (1) SP 1106A 12 diesel driven cooling water pump surveillance on 11/10/2020
FLEX Testing (IP Section 03.02) (1 Sample)
- (1) 122 FLEX Submersible Pump Surveillance hydraulic hose issue on 12/02/2020
71114.04 - Emergency Action Level and Emergency Plan Changes
Inspection Review (IP Section 02.01-02.03) (1 Sample)
- (1) The inspectors completed an evaluation of submitted emergency action level and emergency plan changes on December 2, 2020. This evaluation does not constitute NRC approval.
71114.06 - Drill Evaluation
Drill/Training Evolution Observation (IP Section 03.02) (2 Samples)
The inspectors evaluated:
- (1) Licensed operator re-qualification scenario with Drill and Exercise Performance Indicator evaluation on 11/19/2020
- (2) Drill and exercise performance for September and October 2020 on 12/01/2020
RADIATION SAFETY
71124.01 - Radiological Hazard Assessment and Exposure Controls
Radiological Hazard Assessment (IP Section 03.01) (1 Sample)
- (1) The inspectors evaluated how the licensee identifies the magnitude and extent of radiation levels and the concentrations and quantities of radioactive materials and how the licensee assesses radiological hazards.
Instructions to Workers (IP Section 03.02) (1 Sample)
- (1) The inspectors evaluated radiological protection-related instructions to plant workers.
Contamination and Radioactive Material Control (IP Section 03.03) (2 Samples)
The inspectors evaluated licensee processes for monitoring and controlling contamination and radioactive material.
- (1) Observed workers exiting the RCA at Unit 1 during a refueling outage.
- (2) Observed the usage, availability, and sensitivity of in plant survey instrumentation for contamination monitoring located at the Unit 1 containment exit during the Unit 1 refueling outage.
Radiological Hazards Control and Work Coverage (IP Section 03.04) (3 Samples)
The inspectors evaluated in-plant radiological conditions during facility walkdowns and observation of radiological work activities.
- (2) Unit 1 Containment Refueling Activities performed under RWP #201031, 0
- (3) Unit 1 Containment Reactor Cavity Decontamination performed under RWP #201031, 0
High Radiation Area and Very High Radiation Area Controls (IP Section 03.05) (3 Samples)
The inspectors evaluated licensee controls of the following High Radiation Areas and Very High Radiation Areas:
- (1) Barrel Yard
- (2) Unit 1 Containment Sump C
- (3) Unit 1 Containment Regeneration Heat Exchanger Room
Radiation Worker Performance and Radiation Protection Technician Proficiency (IP Section 03.06) (1 Sample)
- (1) The inspectors evaluated radiation worker and radiation protection technician performance as it pertains to radiation protection requirements.
71124.04 - Occupational Dose Assessment
Special Dosimetric Situations (IP Section 03.04) (1 Sample)
The inspectors evaluated the following special dosimetric situations:
- (1) Dose assessment for three declared pregnant workers
OTHER ACTIVITIES - BASELINE
===71151 - Performance Indicator Verification
The inspectors verified licensee performance indicators submittals listed below:
EP01: Drill/Exercise Performance (IP Section 02.12)===
- (1) Unit 1 (April 1, 2019 - September 30, 2020)
Unit 2 (April 1, 2019 - September 30, 2020)
EP02: ERO Drill Participation (IP Section 02.13) (1 Sample)
- (1) Unit 1 (April 1, 2019 - September 30, 2020) Unit 2 (April 1, 2019 - September 30, 2020)
EP03: Alert & Notification System Reliability (IP Section 02.14) (1 Sample)
- (1) Unit 1 (April 1, 2019 - September 30, 2020) Unit 2 (April 1, 2019 - September 30, 2020)
MS06: Emergency AC Power Systems (IP Section 02.05) (2 Samples)
- (1) Unit 1 MSPI: AC Power (October 1, 2019 - September 30, 2020)
- (2) Unit 2 MSPI: AC Power (October 1, 2019 - September 30, 2020)
MS09: Residual Heat Removal Systems (IP Section 02.08) (2 Samples)
- (1) Unit 1 MSPI: RHR (October 1, 2019 - September 30, 2020)
- (2) Unit 2 MSPI: RHR (October 1, 2019 - September 30, 2020)
MS10: Cooling Water Support Systems (IP Section 02.09) (2 Samples)
- (1) Unit 1 MSPI: Cooling Water (October 1, 2019 - September 30, 2020
- (2) Unit 2 MSPI: Cooling Water (October 1, 2019 - September 30, 2020
BI01: Reactor Coolant System (RCS) Specific Activity Sample (IP Section 02.10) (2 Samples)
- (1) Unit 1 (October 1, 2019 - September 30, 2020)
- (2) Unit 2 (October 1, 2019 - September 30, 2020)
OR01: Occupational Exposure Control Effectiveness Sample (IP Section 02.15) (1 Sample)
(1) (October 1, 2019 - September 30, 2020)
71152 - Problem Identification and Resolution
Semiannual Trend Review (IP Section 02.02) (1 Sample)
- (1) AR 501000043177; Post-Maintenance Issue Trend on 10/19/2020
Annual Follow-up of Selected Issues (IP Section 02.03) (2 Samples)
The inspectors reviewed the licensees implementation of its corrective action program related to the following issues:
- (1) AR 501000044544; Potential Trend of Critical Equipment on 10/22/2020
- (2) Part 21 Relating to Masoneilan Controllers
INSPECTION RESULTS
Observation: Semi-Annual Trend Review of AR 501000043177, "Potential Trend: Incorrect PMT Activities" 71152 The inspectors reviewed AR 501000043177, "Potential Trend: Incorrect PMT Activities,"
initiated by the licensee on August 13, 2020, to examine a cognitive trend surrounding problems identified during post-maintenance testing that originated in the preparation of the activities. The licensee re-established expectations that were communicated to the applicable departments regarding maintenance restoration activities. Based on their review of the trend and the actions taken to address the issues, the inspectors determined that the actions were adequate to address the trend and did not identify any concerns with the licensee's resolution of this issue. No findings or violations were identified.
Observation: Annual Sample of AR 501000044554, "Potential Trend of Critical Equipment Failures" 71152 Based on an unplanned reactor trip of Unit 1, and an unplanned circulating water pump trip on Unit 2 - both in the Fall of 2020, the licensee generated AR 501000044554, "Potential Trend of Critical Equipment Failures." Although a potential trend was not identified based on the evaluations performed for each issue, organizational aspects related to the two issues were addressed in RCE 501000043602. The inspectors did not identify any concerns related to the licensee's evaluation of this potential trend and resulting actions. No findings or violations were identified.
Observation: Annual sample of AR 501000039193 Masoneilan 8005N Converter Part 21 Issue on 12/07/2020 71152 The inspectors evaluated licensee CAP 501000016276, regarding a May 2018, Part 21 report, involving a manufacturing defect with Masoneilan model 8005N I/P converters. These converters were used at Prairie Island to control the safety-related steam generator power operated relief valves (S/G PORV). The defect involved an internal roll pin that wasnt fully inserted during manufacture. As a result, the converter could operate normally for an indeterminate period, but then fail, if the pressure regulating ball fell out of the space in which it was normally restricted by a properly inserted roll pin. The only way to determine the pin position, was to x-ray the converter. The licensee had initiated actions to x-ray the components but did not complete those actions. The manufacturer determined that the issue was not generic and was limited to a single converter sent to another facility. Based on this information, the licensee closed the CAP, as the part 21 was deemed not applicable and therefore their installed converters were operable.
On October 15, 2018, following maintenance, the converter for the 12 S/G PORV failed a post-calibration test. The subject converter was replaced under AR 501000018617 with a similar model, and the failed component was sent to a vendor for forensic analysis. In March 2020, the licensee obtained the results of this analysis, which confirmed that the failure was due to misalignment of the internal roll pin. Subsequently, the licensee created CAPs 501000039193 and 501000039400 to reevaluate the part 21 and determine the corrective actions. A licensee past-operability determination concluded that the 12 S/G PORV had been operable, and that the converter internal regulating ball likely dislodged as a result of the maintenance activity, causing the test failure. Additionally, given the result of this past-operability evaluation and based on past surveillance history, the licensee concluded that the other S/G PORVs remained operable. Additional actions left the replacement frequency for the installed converters coincident with planned maintenance on the S/G PORVs in subsequent refueling outages. Therefore, these components would remain installed in the plant for the next several years.
The inspectors could not refute the licensees operability assessment but did question whether the licensee had adequately assessed and managed the risk from the potential adverse condition. As a result of the inspectors concerns, the licensee created assignments to evaluate the risk aspect from this potential defect for the installed 8005N I/P controllers and to develop additional corrective actions based on the results of that assessment. Additionally, corrective actions were also developed to track the replacement of the installed converters with either x-rayed models or equivalent models, not subject to the defect. The inspectors concluded that these actions were reasonable and noted that the licensee is aware that they may be potentially at risk should these converters fail due to a potential defect prior to scheduled replacement.
No violations or findings were identified.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
- On October 1, 2020, the inspectors presented the Inservice inspection results to J.
Ohotto, General Manager Nuclear Fleet Operations, and other members of the licensee staff.
- On October 14, 2020, the inspectors presented the radiation protection baseline inspection results to Mr. C. Domingos, Acting Site Vice President, and other members of the licensee staff.
- On December 2, 2020, the inspectors presented the IP 71114.04 Exit Meeting inspection results to Mr. B. Carberry, Xcel Emergency Preparedness Manager, and other members of the licensee staff.
- On December 16, 2020, the inspectors presented the Annual Licensed Operator Requalification Examination Results inspection results to Mr. S. Sarrasin, Licensed Operator Requalification Training Lead, and other members of the licensee staff.
- On January 7, 2021, the inspectors presented the Exit Meeting inspection results to Mr. C. Domingos, Site Vice President, and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Corrective Action
Documents
Resulting from
Inspection
501000047958
Surface Water Corrosion on 21 Clg Water Strainer
01/22/2021
Drawings
NF-39245-1
Flow Diagram Component Cooling Systems, Unit 1
Fire Plans
Fire Detection
Zone 35
Fire Detection Zone 35: F5 Appendix A
Procedures
F5
Fire Hazard Analysis: Appendix Fl (Fire Area 31)
F5
Appendix A5-A: Elevation 695'
F5 Appendix A
Fire Detection Zone 97
71111.07A Corrective Action
Documents
501000036554
NOS: KB3 Installed Without Thread Engagement
01/14/2020
501000036567
Excessive Leakage During TP 1687
01/16/2020
501000036690
Surface Rust on Base Plate
03/04/2020
501000037537
Non-Qualified Parts Installed in 121 CR Chiller
2/11/2020
501000047029
ZN-02 Frequency Different than Maintenance Rule
01/15/2020
Corrective Action
Documents
Resulting from
Inspection
501000047029
Maintenance Rule Functions Not Updated Post Maintenance
Rule Evaluation Panel
2/11/2020
Work Orders
2 Control Room Chiller Inspection (PM3138-3)
2/16/2020
71111.08P Corrective Action
Documents
QIM
501000017687
1R31 SP 1392 Unit 1 Insulated Bolted Connection Inspection
Pressure Test
10/06/2018
QIM
501000018751
Leakage Identified by Pressure Test SP 1168.13 Safety
Injection System Pressure Test
11/05/2018
QIM
501000018755
1R31, SP 1168.10 RHR System Pressure Test
11/05/2018
QIM
1R31 SP 1168.16 Pressure Test ISI
11/05/2018
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
501000019097
QIM
501000019994
Condition Evaluation Leak 1FT-411-Coolant Loop A Flow
Transmitter
01/02/2019
QIM
501000020187
ISI Indications SP 1168.16 Pressure Test
01/02/2019
QIM
501000034635
Condition Evaluation Active Fitting Leak 1PT-124
01/02/2019
QIM
501000036454
Cooling Water Thru-Wall Drip 3-CL-88
09/08/2020
Corrective Action
Documents
Resulting from
Inspection
QIM
501000044218
1R32 NRC ISI Inspection 2020 Item
09/18/2020
QIM
501000044883
1R32 ISI RI-ISI Program N-716-1
09/30/2020
Miscellaneous
Weld Control Record, (WO 700008169-0180) Welds 1 and 2
2/08/2017
WPS B31-P1P1-GTSM-001
PQR PBNP-WP-6
PQR KNPP-GMP 102-311-GS-PQR
PQR PAL-SM-1-1(1)
Weld Control Record (WO 700057958-0010), Welds 1 and 3 10/11/2019
Personnel Certification Statement-MT/PT/UT/VT Level II; A
Franck
08/11/2020
Personnel Certification Statement-MT/PT/UT/VT Level II; C
Pearson
05/26/2020
Personnel Certification Statement-MT/PT/UT/VT Level III; A
Jensen
06/22/2020
NDE Reports
2004P033
Liquid Penetrant Examination-Integral Attachment H-1/1A,
RCP-11
09/25/2020
2018U001
10/03/2018
2018U014
10/02/2018
20P003
Liquid Penetrant Examination-Integral Attachment H-12,
09/28/2020
20V027
Visual Examination of Pipe Hanger, Support or Restraint
(VT-3), H-1, SI
09/24/2020
20V028
Visual Examination of Pipe Hanger, Support or Restraint
09/24/2020
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
(VT-3), H-2, SI
20V029
Visual Examination of Pipe Hanger, Support or Restraint
(VT-3), H-4, SI
09/24/2020
20V046
Visual Examination of Pipe Hanger, Support or Restraint
(VT-3), H-12, AFW
09/26/2020
BOP-MT-19-01
Magnetic Particle Examination-Welds I & 6
10/18/2019
BOP-PT-19-014
Liquid Penetrant Examination-Welds 2,3,4,5,7,8,9
10/07/2019
BOP-UT-20-006
UT Calibration/Examination-6-RC-13B, W10
09/25/2020
OP-VT-17-034
Visual Examination: System Leakage (VT-2) - Dl Air Coolant,
Jacket Coolant, and Lube Oil Cooler
2/18/2017
OP-VT-19-022
Visual Examination: System Leakage (VT-2) - 4-CL-90,
4-CL-23, CL-115-2, CL-113-2
10/18/2019
Procedures
FP-PE-FAC-01
FAC Program
FP-PE-FAC-02
Layout and Marking of Piping and Components for Flow
Accelerated Corrosion Program
FP-PE-NDE-200
Solvent Removable Visible Dye Penetrant Examination
FP-PE-NDE-402
Ultrasonic Examination of Austenitic Pipe Welds -
Supplement 2
FP-PE-NDE-530
Visual Examination, VT-3
H.2
Boric Acid Corrosion Control Program,
H10.7
Fifth Interval Inservice Inspection (ISI) Plan
H10.7.1
ISI Component Schedule
Work Orders
700008169-0180
Perform Weld Build-up Machining on Dl Floating Channel
Heads
2/08/2017
700057958-0010
Replace Valves CL-113-2, CL-115-2 and Piping
10/11/2019
Procedures
PM 3001-2-D1
D1 Diesel Generator Inspection (034-011)
Work Orders
0010
Replace Jumper Gaskets and Seals
Calculations
CN-CRA-11-17
Steam Generator Tube Rupture Margin to Overfill Analysis
for Prairie Island Units 1 and 2 to Support the Alternate
Source Term Submittal
05/26/2011
Calculation
(DOC) No. CN-
Prairie Island SGTR Hand Calculation for Input to Alternate
Source Term Dose Analysis
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
CRA-09-32
Calculation (Doc)
No. ENG-EE-166
Unit 1 480VAC Safeguards Bus Temperature Limitations
06/28/2018
Corrective Action
Documents
501000046983
Bus 112 Room Temperature
2/08/2020
Miscellaneous
L-PI-09-114 (10 CFR 50.90)
License Amendment Request (LAR) to Adopt the Alternate
Source Term Methodology
10/27/2009
Calculation (GEN-
PI-081)
EAB, LPZ, and CR Doses Due to Steam Generator Tube
Rupture Accident - AST
07/25/2019
TAC Nos.
ME2609 and
ME2610
Prairie Island Nuclear Generating Plant, Units 1 and 2 -
Issuance of Amendments Re: Adoption of Alternate Source
Term Methodology
01/22/2013
Procedures
C18.1
Engineered Safeguards Equipment Support Systems:
(Battery Room Cooling and Ventilation)
EOP 1E
Steam Generator Tube Rupture
Corrective Action
Documents
501000047167
Sump B Temp Mod Pump Needs to be Replaced
2/16/2020
Engineering
Changes
601000002790
Install Unit 1 Sump B Pump Down TMod
2/23/2020
Procedures
0010
D1 Diesel Generator Install Gasketless Injector Nozzles
Procedures
SP 1088B
Train B Safety Injection Quarterly Test
Miscellaneous
PI-2019-663
Changes to EAL Technical Basis
11/14/2019
PI-2019-680
CFR 50.54(q) Review Form
11/14/2019
Miscellaneous
EP Performance Records
09/02/2020
Corrective Action
Documents
501000032260
Boundary Controls for HRAs
09/24/2019
501000033781
Elevated Dose Rates SFP Skimmer Filters
10/22/2019
501000044384
1R32 - Worker Exited RCA Out of Process
09/21/2020
501000045075
Level 2 PCE 1R32 #1
10/04/2020
Miscellaneous
Technical Basis Document 20-002; Source Checks in the
Field for Reducing Radiation Survey Frequency.
04/07/2020
Prairie Island Plant Alpha Characterization Study
09/21/2020
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
20 National Source Tracking System Annual
Reconciliation
01/02/2020
Procedures
FP-RP-NISP-05
Access Controls for High Radiation Areas
FP-RP-NISP-07
Control of Radioactive Material
FP-RP-SEN-02
Radiological Work Planning and Controls
Radiation
Surveys
M-202001002-17
10/02/2020
PI-M-20161108-2
1R30 Rx Head Set
11/08/2016
PI-M-2018-1013-
1R31 Rx Head Set
10/13/2018
PI-M-20191022-9
Area Around SFP Skimmer Filter and Pump
10/22/2019
Radiation Work
Permits (RWPs)
201031
1R32 Sump C
Self-Assessments
Self-Assessment for the NRC Inspection Procedure 71124.01
Undated
Nuclear Oversight Audit Report - 2020 Radiation
Protection/Radiological Environmental Monitoring
Program/Radwaste Shipping
09/11/2020
Miscellaneous
Declared Pregnant Worker Dose Assessment
10/10/2019
Declared Pregnant Worker Dose Assessment
03/05/2020
Declared Pregnant Worker Dose Assessment
04/01/2020
Radiation Work
Permits (RWPs)
2000059
Dose Restricted Individuals
71151
Miscellaneous
Electronic Dosimetry Alarm Logs 10/01/2019 Through
09/30/20
Various
Chemistry Radiochemistry Data for Units 1 and 2 for DEI
from 10/01/2019 Through 09/30/2020.
Alert and Notification System Reliability Performance
Indicator Records
07/01/2019 -
09/30/2020
Emergency Response Organization Drill Participation
Performance Indicator Records
06/30/2019 -
09/30/2020
Drill and Exercise Performance - Performance Indicator
Records
06/30/2019 -
09/30/2020
Corrective Action
Documents
501000016276
OE: PVNGS ADV Failed to Open. Faulty I/P
08/29/2018
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
501000018617
10/15/2018
501000039193
Manufacturing Defect Found in Failed I/P
03/27/2020
501000039400
Inadequate Screening of CAP 501000018617
04/03/2020
501000043177
Potential Trend: Incorrect PMT Activities
08/13/2020
Corrective Action
Documents
Resulting from
Inspection
501000045858
Bus 16 Logic Relay Cabinet Missing Fasteners
10/27/2020
501000047218
Maintenance Rule Basis Document Scoping
2/18/2020