IR 05000275/2020006

DC 2020 Annual Assessment Letter for Diablo Canyon Power Plant, Units 1 & 2 (Report 05000275/2020006 & 05000323/2020006)

ML21055A007
Person / Time
Site:	Diablo Canyon
Issue date:	03/03/2021
From:	Jeffrey Josey NRC/RGN-IV/DRP/RPB-A
To:	Welsch J Pacific Gas & Electric Co
References
IR 2020006
Download: ML21055A007 (8)

Text

March 3, 2021

SUBJECT:

ANNUAL ASSESSMENT LETTER FOR DIABLO CANYON POWER PLANT, UNITS 1 AND 2 (REPORT 05000275/2020006 AND 05000323/2020006)

Dear Mr. Welsch:

The U.S. Nuclear Regulatory Commission (NRC) has completed its end-of-cycle performance assessment of Diablo Canyon Power Plant, Units 1 and 2, reviewing performance indicators (PIs), 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 its plans for future inspections at your facility. The NRC concluded that overall performance at your facility preserved public health and safety. The baseline inspection program was completed at your facility as defined in Inspection Manual Chapter 2515, Light-Water Reactor Inspection Program - Operations Phase.

The NRC determined the performance at Diablo Canyon Power Plant, Units 1 and 2 during the most recent quarter was within the Licensee Response Column, the highest performance category of the NRCs Reactor Oversight Process (ROP) Action Matrix, because all inspection findings had very low safety significance (i.e., Green), and all PIs were within the expected range (i.e., Green). Therefore, the NRC plans to conduct ROP baseline inspections at your facility.

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 resident inspectors are not included in the inspection plan. The inspections listed during the last twelve months of the inspection plan are tentative and may be revised. The NRC will contact you as soon as possible to discuss changes to the inspection plan should circumstances warrant any changes.

Additionally, during this period the NRC scheduled an additional inspection per a revised version Temporary Instruction (TI) 2515/194, Inspection of the Licensees Implementation of Industry Initiative Associated with the Open Phase Condition Design Vulnerability in Electrical Power Systems (NRC Bulletin 2012-01) for any sites who elect to implement the guidance of the Industry Initiative on Open Phase Condition, Revision 3 (ML19163A176), which included an option for relying on annunciation and operator manual actions instead of automatic protective features to isolate a power supply affected by an open phase condition. In response to the COVID-19 public health emergency (PHE), the NRC is adjusting 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 in order 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 adjust inspection schedules if needed. This is done in accordance with guidance contained in the February 1, 2021 memo, Calendar Year 2021 Inspection Guidance During COVID-19 Telework Restrictions (ML21027A274). For inspections requiring extensive coordination with offsite organizations, such as evaluated emergency preparedness exercises, NRC guidance and frequently asked questions for security and emergency preparedness 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. These changes help 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.

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 (PARS)

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 me at 817-200-1148 with any questions you have regarding this letter.

Sincerely, Jeffrey Digitally signed by Jeffrey Josey Josey Date: 2021.03.03 08:19:35 -06'00'

Jeffrey E. Josey, Chief Project Branch A Division of Reactor Projects Docket Nos. 50-275; 50-323 License Nos. DPR-80; DPR-82 Enclosure:

Inspection Plan cc w/ encl: Distribution LISTSERV

ML21055A007 Non-Sensitive Publicly Available Sunsi Review Sensitive Non-Publicly Available OFFICE RIV/DRP/A C:RIV/DRP/A NAME HFreeman /haf/ JJosey DATE 02/23/2021 03/03/2021

IP 22 Inspection Activity Plan Report 07200026 - Diablo Canyon (ISFSI)

01/01/2021 - 12/31/2022 Unit Start End Activity CAC Title Staff Count Diablo Canyon ISFSI routine inspection 2 1 01/19/2021 01/22/2021 IP 60855 001001 Operation Of An ISFSI Security ISFSI IP 81131 1 1 06/28/2021 06/30/2021 IP 81311 001006 Physical Security Requirements for Independent Spent Fuel Storage Installations This report does not include INPO and OUTAGE activities. Page 1 of 5 This report shows only on-site and announced inspection procedures.

2/18/2021 9:23:03 AM

IP 22 Inspection Activity Plan Report Diablo Canyon 01/01/2021 - 12/31/2022 Unit Start End Activity CAC Title Staff Count Diablo Canyon ISFSI Routine Inspection (Included as Feeder to Resident Q1 report) 2 1, 2 01/18/2021 01/18/2021 IP 60855 001001 Operation Of An ISFSI DC 2021 Initial Exam 8 1, 2 01/24/2021 01/30/2021 EXAD 000500 LICENSE EXAM ADMINISTRATION (EXAD)

1, 2 01/31/2021 02/06/2021 EXAD 000500 LICENSE EXAM ADMINISTRATION (EXAD)

Fire Protection Inspection - DC 3 1, 2 01/25/2021 01/29/2021 IP 71111.21N.05 001646 Fire Protection Team Inspection (FPTI)

1, 2 02/08/2021 02/12/2021 IP 71111.21N.05 001646 Fire Protection Team Inspection (FPTI)

Cyber Security Inspection - DC 0 1, 2 02/22/2021 02/26/2021 IP 71130.10P 000741 Cyber Security 1, 2 03/08/2021 03/12/2021 IP 71130.10P 000741 Cyber Security Cyber Security Inspection - DC 4 1, 2 02/22/2021 02/26/2021 IP 71130.10P 000741 Cyber Security 1, 2 03/08/2021 03/12/2021 IP 71130.10P 000741 Cyber Security RP 2,4 2 1, 2 03/01/2021 03/05/2021 IP 71124.02 000726 Occupational ALARA Planning and Controls 1, 2 03/01/2021 03/05/2021 IP 71124.04 000728 Occupational Dose Assessment Unit 2 Inservice Inspection 1 2 03/15/2021 03/26/2021 IP 71111.08P 000702 Inservice Inspection Activities (PWR)

RP 1,2,PI 2 1, 2 03/22/2021 03/26/2021 IP 71124.01 000725 Radiological Hazard Assessment and Exposure Controls This report does not include INPO and OUTAGE activities. Page 2 of 5 This report shows only on-site and announced inspection procedures.

2/18/2021 9:23:03 AM

IP 22 Inspection Activity Plan Report Diablo Canyon 01/01/2021 - 12/31/2022 Unit Start End Activity CAC Title Staff Count RP 1,2,PI 2 1, 2 03/22/2021 03/26/2021 IP 71124.02 000726 Occupational ALARA Planning and Controls DC 2021 BRQ 3 1, 2 05/16/2021 05/22/2021 IP 71111.11B 000704 Licensed Operator Requalification Program and Licensed Operator Performance TI 2515/194 - DC 1 1, 2 06/01/2021 06/04/2021 TI 2515/194 000512 Inspection of the Licensees Implementation of Industry Initiative Associated With the Open Phase Condition Design Vulnerabilities In Electric Power Systems (NRC Bulletin 2012-01)

Security FFD .08 1 1, 2 06/21/2021 06/25/2021 IP 71130.08 000740 Fitness For Duty Program Security Training 71130.07 (Rescheduled from 2020) 1 1, 2 06/28/2021 07/02/2021 IP 71130.07 000739 Security Training In-Office EP Exercise Scenario Rvw 71114.08 - DC 4 1, 2 07/01/2021 08/16/2021 IP 71114.08 000723 Exercise Evaluation  Scenario Review Power Operated Valve Inspection 21N - DC 3 1, 2 07/26/2021 08/13/2021 IP 71111.21N.02 001645 Design-Basis Capability of Power-Operated Valves Under 10 CFR 50.55a Requirements EP Exercise & PI Inspection - DC 4 1, 2 09/13/2021 09/17/2021 IP 71114.01 000716 Exercise Evaluation 1, 2 09/13/2021 09/17/2021 IP 71114.04 000719 Emergency Action Level and Emergency Plan Changes 1, 2 09/13/2021 09/17/2021 IP 71151 001397 Performance Indicator Verification This report does not include INPO and OUTAGE activities. Page 3 of 5 This report shows only on-site and announced inspection procedures.

2/18/2021 9:23:03 AM

IP 22 Inspection Activity Plan Report Diablo Canyon 01/01/2021 - 12/31/2022 Unit Start End Activity CAC Title Staff Count RP 6,7 2 1, 2 09/20/2021 09/24/2021 IP 71124.06 000730 Radioactive Gaseous and Liquid Effluent Treatment 1, 2 09/20/2021 09/24/2021 IP 71124.07 000731 Radiological Environmental Monitoring Program Security Access Authorization .01 and Access Control .02 w/PIV 2 1, 2 10/04/2021 10/08/2021 IP 71130.01 000733 Access Authorization 1, 2 10/04/2021 10/08/2021 IP 71130.02 000734 Access Control 1, 2 10/04/2021 10/08/2021 IP 71130.09 001656 Security Plan Changes 1, 2 10/04/2021 10/08/2021 IP 71151 001338 Performance Indicator Verification Diablo Canyon 1, 2 - Heat Sink Performance (Triennial) 2 1, 2 10/18/2021 10/22/2021 IP 71111.07T 000700 Heat Sink Performance Security Protective Strategy 71130.05 (Rescheduled from 2020) 2 1, 2 10/25/2021 10/29/2021 IP 71130.05 000737 Protective Strategy Evaluation Force-On-Force Planning and Exercise Weeks - DC 6 1, 2 01/24/2022 01/28/2022 IP 71130.03 000735 Contingency Response - Force-On-Force Testing 1, 2 02/14/2022 02/18/2022 IP 71130.03 000735 Contingency Response - Force-On-Force Testing Inservice Inspection 1RF23 - DC 1 1 03/28/2022 04/08/2022 IP 71111.08P 000702 Inservice Inspection Activities (PWR)

RP 1,2,PI 2 1, 2 04/04/2022 04/08/2022 IP 71124.01 000725 Radiological Hazard Assessment and Exposure Controls 1, 2 04/04/2022 04/08/2022 IP 71124.02 000726 Occupational ALARA Planning and Controls This report does not include INPO and OUTAGE activities. Page 4 of 5 This report shows only on-site and announced inspection procedures.

2/18/2021 9:23:03 AM

IP 22 Inspection Activity Plan Report Diablo Canyon 01/01/2021 - 12/31/2022 Unit Start End Activity CAC Title Staff Count In-Office EP Exercise Scenario Review - DC 4 1, 2 07/05/2022 08/15/2022 IP 71114.08 000723 Exercise Evaluation  Scenario Review Security Access Control .02 1 1, 2 07/11/2022 07/15/2022 IP 71130.02 000734 Access Control 1, 2 07/11/2022 07/15/2022 IP 71151 001338 Performance Indicator Verification RP 5,8 2 1, 2 08/01/2022 08/05/2022 IP 71124.05 000729 Radiation Monitoring Instrumentation 1, 2 08/01/2022 08/05/2022 IP 71124.08 000732 Radioactive Solid Waste Processing & Radioactive Material Handling, Storage, &

Transportation EP Biennial Exercise & PI Inspection - DC 4 1, 2 09/12/2022 09/16/2022 IP 71114.01 000716 Exercise Evaluation 1, 2 09/12/2022 09/16/2022 IP 71114.04 000719 Emergency Action Level and Emergency Plan Changes 1, 2 09/12/2022 09/16/2022 IP 71151 001397 Performance Indicator Verification Security Training/Equip Maint .07 and .04 2 1, 2 10/03/2022 10/07/2022 IP 71130.04 000736 Equipment Performance, Testing, and Maintenance 1, 2 10/03/2022 10/07/2022 IP 71130.07 000739 Security Training This report does not include INPO and OUTAGE activities. Page 5 of 5 This report shows only on-site and announced inspection procedures.

2/18/2021 9:23:03 AM