ML21055A008

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2020 Annual Assessment Letter
ML21055A008
Person / Time
Site: Grand Gulf Entergy icon.png
Issue date: 03/03/2021
From: Scott(Ois) Morris
Division of Nuclear Materials Safety IV
To: Franssen R
Entergy Operations
References
IR 2020006
Download: ML21055A008 (8)


Text

March 3, 2021 Mr. Robert Franssen, Site Vice President Entergy Operations, Inc.

Grand Gulf Nuclear Station P.O. Box 756 Port Gibson, MS 39150

SUBJECT:

ANNUAL ASSESSMENT LETTER FOR GRAND GULF NUCLEAR STATION (REPORT 05000416/2020006)

Dear Mr. Franssen:

The U.S. Nuclear Regulatory Commission (NRC) completed its end-of-cycle performance assessment of Grand Gulf Nuclear Station, having reviewed station performance indicators (PI),

inspection results, and enforcement actions from January 1, 2020 through December 31, 2020.

This letter informs you of the NRCs assessment of your facility during this period and our plans for future inspections. We concluded that overall performance at your facility preserved public health and safety.

We have determined the performance at Grand Gulf Nuclear Station during the last calendar quarter of 2020 was within the Degraded Performance column of the NRCs Reactor Oversight Process (ROP) Action Matrix. This conclusion was based on our assessment that the Grand Gulf Nuclear Station Unplanned Scrams Per 7,000 Critical Hours PI crossed the White-to-Yellow threshold. The performance issues associated with this PI contributed to five reactor scram events that occurred from May through December 2020. These events included an automatic reactor scram due to a main turbine trip, a manual reactor scram due to main turbine control valve oscillations, an automatic reactor scram due to low reactor water level following a reactor feedwater pump trip, an automatic reactor scram due to low primary water coolant flow (coolant for main generator components), and an automatic reactor scram due to low primary water tank level. Our assessment of Grand Gulf Nuclear Station performance at the end of the previous cycle (i.e., 2019) was that performance was within the Licensee Response column of the ROP Action Matrix. Station performance subsequently transitioned to the Regulatory Response column in the third quarter of 2020 due to the Grand Gulf Nuclear Station Unplanned Scrams Per 7,000 Critical Hours PI crossing the Green-to-White threshold. On November 3, 2020, the NRC notified you of this transition in an assessment follow-up letter, Assessment Follow-Up Letter for Grand Gulf Nuclear Station, (ADAMS Accession No. ML20308A396).

Given the above assessment results, we plan to conduct a supplemental inspection at your facility in accordance with Inspection Procedure 95002, Supplemental Inspection for One Degraded Cornerstone or Any Three White Inputs in a Strategic Performance Area. The objectives of this supplemental inspection are to: (1) assure that the root and contributing causes of individual risk-significant performance issues are understood, (2) independently assess and ensure that the extent of condition and extent of cause of individual risk-significant

R. Franssen 2 performance issues are identified, (3) independently determine if deficient safety culture traits caused or significantly contributed to the individual risk-significant performance issues, and (4) provide assurance that Grand Gulf Nuclear Stations corrective actions for risk-significant performance issues are sufficient to address the root and contributing causes and prevent their recurrence. This inspection will be scheduled after you notify the NRC of your readiness.

The enclosed inspection plan lists the inspections scheduled through December 31, 2022. The NRC provides the inspection plan to allow for the resolution of any scheduling conflicts and personnel availability issues. Routine inspections performed by our resident inspectors are not included in the inspection plan. The inspections listed during the last twelve months of the plan are tentative and may be revised. The NRC staff will contact you as soon as possible to discuss any needed changes to the inspection plan as circumstances dictate.

In response to the COVID-19 public health emergency (PHE), we have and will continue to adjust our inspection plans and schedules in order to safeguard the health and safety of both NRC and licensee staff while still effectively implementing the ROP. Each planned inspection is being carefully reviewed to determine if any portions of the inspection can be performed remotely, how best to perform on-site portions to minimize personnel health risks, and to adjust inspection schedules if needed. These reviews are performed in accordance with guidance contained in the February 1, 2021 memo, Calendar Year 2021 Inspection Guidance During COVID-19 Telework Restrictions (ML21027A274). In addition, NRC guidance and frequently asked questions regarding inspections associated with security and emergency preparedness programs can be found here: https://www.nrc.gov/about-nrc/covid-19/security-ep/. Similarly, the NRC has developed guidance if force-on-force inspections cannot be completed as scheduled due to an emergency, such as the COVID-19 PHE. All these aforementioned changes help to ensure the health and safety of both NRC and licensee staff while maintaining the NRCs important safety and security mission during the COVID-19 PHE. The attached inspection plan is accurate on the date of issuance but remains subject to change based on approval of potential exemption requests or other changes needed due to changing conditions in the COVID-19 PHE. NRC staff will contact your appropriate regulatory affairs staff in order to coordinate inspection planning and scheduling.

I have also approved the NRC staffs plan to conduct Inspection Procedure 71003, Post-Approval Site Inspection for License Renewal, at your facility as indicated in the enclosed inspection plan.

On March 12, 2018, the NRC issued a Confirmatory Order (ADAMS Accession No. ML18072A191) (EA-17-132 and EA-17-153) to the Entergy fleet that included Grand Gulf Nuclear Station. On March 5, 2020, we completed a follow-up inspection at Entergy Corporate Headquarters in Jackson, MS, of the Confirmatory Order actions required to be completed by the end of calendar year 2019. I have approved the NRC staffs plan to conduct a subsequent follow-up inspection of the remaining Confirmatory Order actions in accordance with Inspection Procedure 92702, Follow-up on Traditional Enforcement Actions Including Violations, Deviations, Confirmatory Action Letters, Confirmatory Orders, And Alternative Dispute Resolution Confirmatory Orders. The NRC staff will coordinate with Entergy to schedule these inspection activities at mutually convenient and appropriate date.

In accordance with Title 10 of the Code of Federal Regulations 2.390 of the NRCs Agency Rules of Practice and Procedure, a copy of this letter will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records

R. Franssen 3 component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

Please contact Mr. Jason Kozal at (817) 200-1144 with any questions you have regarding this letter.

Sincerely, Scott A. Digitally signed by Scott A. Morris Morris Date: 2021.03.03 16:00:34

-06'00' Scott A. Morris Regional Administrator Region IV Docket No. 50-416 License No. NPF-29

Enclosure:

Inspection Plan cc w/ encl: Distribution LISTSERV

ML21055A008 SUNSI Review ADAMS: Non-Publicly Available Non-Sensitive Keyword:

By: AAS Yes No Publicly Available Sensitive NRC-002 OFFICE ASPE:DRP/PBC BC:DRP/PBC D:DRP RA:DRP NAME ASanchez JKozal RLantz SMorris SIGNATURE /RA/ /RA/ /RA/ /RA/

DATE 02/23/21 02/23/21 02/25/21 03/03/21 IP 22 Inspection Activity Plan Report 07200050 - Grand Gulf (ISFSI) 01/01/2021 - 12/31/2022 Unit Start End Activity CAC Title Staff Count Grand Gulf ISFSI Loading Inspection (1 week in October) 2 1 10/01/2021 10/31/2021 IP 60855 001001 Operation Of An ISFSI 1 10/01/2021 10/31/2021 IP 60857 001004 Review of 10 CFR 72.48 Evaluations This report does not include INPO and OUTAGE activities. Page 1 of 4 This report shows only on-site and announced inspection procedures.

2/18/2021 9:24:12 AM

IP 22 Inspection Activity Plan Report Grand Gulf 01/01/2021 - 12/31/2022 Unit Start End Activity CAC Title Staff Count In-Office EP Exercise Scenario Review - GG 4 1 01/03/2021 02/14/2021 IP 71114.08 000723 Exercise Evaluation  Scenario Review RP 2,4 2 1 02/01/2021 02/05/2021 IP 71124.02 000726 Occupational ALARA Planning and Controls 1 02/01/2021 02/05/2021 IP 71124.04 000728 Occupational Dose Assessment Security VA Door Focused (2017), IP 71130.02 1 1 02/01/2021 02/04/2021 IP 71130.02 000734 Access Control EP Exercise and PI Inspection - GG 4 1 03/15/2021 03/19/2021 IP 71114.01 000716 Exercise Evaluation 1 03/15/2021 03/19/2021 IP 71114.04 000719 Emergency Action Level and Emergency Plan Changes 1 03/15/2021 03/19/2021 IP 71151 001397 Performance Indicator Verification FORCE-ON-FORCE PLANNING AND EXERCISE WEEKS - GG 6 1 04/12/2021 04/16/2021 IP 71130.03 000735 Contingency Response - Force-On-Force Testing 1 05/03/2021 05/07/2021 IP 71130.03 000735 Contingency Response - Force-On-Force Testing Security FFD .08 1 1 05/10/2021 05/14/2021 IP 71130.08 000740 Fitness For Duty Program 50.59 Inspection 17T - Grand Gulf 3 1 05/17/2021 05/21/2021 IP 71111.17T 000709 Evaluations of Changes, Tests, and Experiments Security Access Authorization .01 and Access Control .02 w/PIV 2 1 05/17/2021 05/21/2021 IP 71130.01 000733 Access Authorization 1 05/17/2021 05/21/2021 IP 71130.02 000734 Access Control 1 05/17/2021 05/21/2021 IP 71130.09 001656 Security Plan Changes This report does not include INPO and OUTAGE activities. Page 2 of 4 This report shows only on-site and announced inspection procedures.

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IP 22 Inspection Activity Plan Report Grand Gulf 01/01/2021 - 12/31/2022 Unit Start End Activity CAC Title Staff Count Security Access Authorization .01 and Access Control .02 w/PIV 2 1 05/17/2021 05/21/2021 IP 71151 001338 Performance Indicator Verification RP 1,3,PI 2 1 06/14/2021 06/18/2021 IP 71124.01 000725 Radiological Hazard Assessment and Exposure Controls 1 06/14/2021 06/18/2021 IP 71124.03 000727 In-Plant Airborne Radioactivity Control and Mitigation GG 2021 BRQ 3 1 08/15/2021 08/21/2021 IP 71111.11B 000704 Licensed Operator Requalification Program and Licensed Operator Performance GG 2021 INITIAL EXAM 5 1 09/13/2021 09/16/2021 OV 000956 VALIDATION OF INITIAL LICENSE EXAMINATION (OV) 1 10/18/2021 10/22/2021 EXAD 000500 LICENSE EXAM ADMINISTRATION (EXAD)

Heat Sink Performance 07T - Grand Gulf 2 1 12/06/2021 12/10/2021 IP 71111.07T 000700 Heat Sink Performance Inservice Inspection RF23 - GG 1 1 02/28/2022 03/04/2022 IP 71111.08G 000701 Inservice Inspection Activities (BWR)

License Renewal Inspection 71003 (Phase 1) - GG 2 1 03/07/2022 03/11/2022 IP 71003 000687 Post-Approval Site Inspection for License Renewal RP 1,2,PI 2 1 03/07/2022 03/11/2022 IP 71124.01 000725 Radiological Hazard Assessment and Exposure Controls 1 03/07/2022 03/11/2022 IP 71124.02 000726 Occupational ALARA Planning and Controls This report does not include INPO and OUTAGE activities. Page 3 of 4 This report shows only on-site and announced inspection procedures.

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IP 22 Inspection Activity Plan Report Grand Gulf 01/01/2021 - 12/31/2022 Unit Start End Activity CAC Title Staff Count Security Access Control .02 1 1 04/04/2022 04/08/2022 IP 71130.02 000734 Access Control 1 04/04/2022 04/08/2022 IP 71151 001338 Performance Indicator Verification Security Training/Equip Maint .07 and .04 2 1 07/25/2022 07/29/2022 IP 71130.04 000736 Equipment Performance, Testing, and Maintenance 1 07/25/2022 07/29/2022 IP 71130.07 000739 Security Training GG 2022 INITIAL EXAM 5 1 09/11/2022 09/17/2022 OV 000956 VALIDATION OF INITIAL LICENSE EXAMINATION (OV) 1 10/09/2022 10/15/2022 EXAD 000500 LICENSE EXAM ADMINISTRATION (EXAD)

EP Program & PI Inspection - GG 1 1 10/03/2022 10/07/2022 IP 71114.02 000717 Alert and Notification System Testing 1 10/03/2022 10/07/2022 IP 71114.03 000718 Emergency Response Organization Staffing and Augmentation System 1 10/03/2022 10/07/2022 IP 71114.04 000719 Emergency Action Level and Emergency Plan Changes 1 10/03/2022 10/07/2022 IP 71114.05 000720 Maintenance of Emergency Preparedness 1 10/03/2022 10/07/2022 IP 71151 001397 Performance Indicator Verification RP 5,8 2 1 11/14/2022 11/18/2022 IP 71124.05 000729 Radiation Monitoring Instrumentation 1 11/14/2022 11/18/2022 IP 71124.08 000732 Radioactive Solid Waste Processing & Radioactive Material Handling, Storage, &

Transportation This report does not include INPO and OUTAGE activities. Page 4 of 4 This report shows only on-site and announced inspection procedures.

2/18/2021 9:24:12 AM