ML22178A195

2021 Davis Besse Nuclear Power Station End-of-Cycle Meeting Presentation

ML22178A195
Person / Time
Site:	Davis Besse
Issue date:	06/27/2022
From:	NRC/RGN-III/DRP/B2
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ML21362A675	List: IR 05000346/2021006 ML22159A335 ML22159A338 ML22178A195 ML22178A231
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Download: ML22178A195 (28)

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NRC 2021 ANNUAL ASSESSMENT DAVIS-BESSE NUCLEAR POWER STATION Interactive Audio for this presentation will be available only through the Microsoft Teams Application.

HOST Billy Dickson Branch Chief Division of Reactor Projects Branch 2 2

PURPOSE OF TODAYS MEETING A public forum for discussion of the licensees performance in 2021 NRC will address the performance issues identified in the annual assessment letter Licensee will be given the opportunity to respond and inform the NRC of new or existing programs to maintain or improve performance 3

AGENDA Introduction Review of Reactor Oversight Process National Summary of Plant Performance Discussion of Plant Performance Results NRC Closing Remarks Break NRC available to address public questions 4

ABOUT THE NRC The NRC licenses and regulates the Nations civilian use of radioactive material to achieve the following goals:

Safety - Ensure adequate protection of public health and safety and the environment Security - Ensure adequate protection of the secure use and management of radioactive materials 5

SOME NUCLEAR FACTS 92 nuclear power plants supply about 20 percent of the electricity in the U.S.

Nuclear materials are used in medicine for diagnosis and cancer treatment Nuclear materials are widely used in industry, such as in density gauges, flow measurement devices, radiography devices, and irradiators 6

THE NRC REGULATES Nuclear reactors - commercial power reactors, research and test reactors, new reactor designs Nuclear materials - nuclear reactor fuel, radioactive materials for medical, industrial, and academic use Nuclear waste - transportation, storage and disposal of nuclear material and waste, decommissioning of nuclear facilities Nuclear security - physical security of nuclear facilities and materials from sabotage or attacks 7

HOW WE REGULATE Establish rules and regulations Issue licenses Provide oversight through inspection, enforcement, and evaluation of operational experience Conduct research to provide support for regulatory decisions Respond to events and emergencies 8

WHAT WE DONT DO Regulate nuclear weapons, military reactors, or space vehicle reactors Own or operate nuclear power plants Regulate some radioactive materials, such as X-rays and naturally occurring radon 9

REACTOR OVERSIGHT PROCESS (ROP) 10

REACTOR OVERSIGHT PROCESS (ROP)

Strategic Performance Areas Safety Cornerstones Baseline Inspection Performance Indicator Results Results Significance Significance Threshold Threshold Action Matrix Regulatory Response 11

SAFETY/SECURITY SIGNIFICANCE 12

ROP ACTION MATRIX Multiple/Repetitive Licensee Regulatory Degraded Unacceptable Degraded Response Response Performance Performance Cornerstone Increasing:

• Safety Significance

• Inspection

• Management Involvement

• Regulatory Action 13

EXAMPLES OF BASELINE INSPECTIONS

• Equipment Alignment ~80 hrs/yr

• Triennial Fire Protection ~240 hrs every 3 yrs

• Operator Response ~125 hrs/yr

• Emergency Preparedness ~80 hrs/yr

• Rad Release Controls ~110 hrs every 2 yrs

• Worker Radiation Protection ~95 hrs/yr

• Corrective Action Program ~250 hrs every 2 yrs

• Corrective Action Case Reviews ~60 hrs/yr 14

NATIONAL

SUMMARY

OF PLANT PERFORMANCE Status as of 2/23/2022 Licensee Response 91 Regulatory Response 2 Degraded Cornerstone 0 Multiple/Repetitive Deg. Cornerstone 0 Unacceptable 0 IMC 0350 Oversight 0 Total 93 15

NATIONAL

SUMMARY

• Performance Indicator Results for 2021*

- Green 6314

- White 5

- Yellow 0

- Red 0

• PIs are counted per unit per quarter

• Total Inspection Findings in 2021

- Green 289

- Greater-than-Green 0

- White 2

- Yellow 0

- Red 0 16

DAVIS BESSE RESIDENT INSPECTORS Daniel Mills Russell Cassara Senior Resident Inspector Resident Inspector 17

2021 ANNUAL ASSESSMENT DAVIS BESSE NUCLEAR POWER STATION

• The plant operated safely

• Regulatory Response Column

- All performance indicators were Green

- Two (2) White inspection findings Multiple/Repetitive Licensee

Response

Regulatory

Response

Degraded Performance Degraded 18 Unacceptable Performance Cornerstone

2021 NRC INSPECTIONS

• 3176 hours0.0368 days <br />0.882 hours <br />0.00525 weeks <br />0.00121 months <br /> of direct inspection

• 12 regional inspections

• 5 major team inspections

- Biennial Problem Identification and Resolution Inspection

- Biennial Emergency Preparedness Exercise Evaluation

- Operating License Initial Examinations

- Design Bases Assurance Inspection (Programs)

- Cyber Security Inspection 19

2021 NRC INSPECTIONS SPECIAL INSPECTION Multiple failures of the safety-related emergency diesel generator (EDG) circuits within relatively short time period (16 month) along with failure of Station Blackout Diesel.

Complicated Reactor Trip in July of 2021 20

2021 NRC INSPECTIONS SPECIAL INSPECTION RESULTS

• Four (4) findings

• Three(3) findings determined to be of very low safety significance (Green) .

Two of these findings have associated violations, which we are treating as non-cited violations (NCVs)

• One (1) finding determined to be of low to moderate safety significance (White) and as a violation of NRC requirements 21

SAFETY SIGNIFICANT FINDINGS OR PIS

• A WHITE finding and associated violation of the Davis-Besse License Condition 2.D requirement to fully implement and maintain in effect all provisions of the Commission-approved Cyber Security Plan.

• A WHITE finding and associated violation involving the failure to select a suitable replacement part for the emergency diesel generators. The selected speed switch was not compatible with the stations direct current (dc) battery system.

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NRC PLANS FOR 2022 NRC plans baseline inspections and two supplemental Inspections at the Davis-Besse Power Station for the remainder of 2022 23

NRC RESPONSE TO COVID-19 Maintained mission critical functions

- Monitored plant activities

- Maintained emergency response capabilities

- Risk-informed "eyes on" inspections through residents and regional inspections Expanded use of telework Coordinated actions with industry on best practices For more information visit:

https://www.nrc.gov/about-nrc/covid-19/reactors/

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NRC Social Media Channels Facebook: https://www.facebook.com/nrcgov/

Twitter: https://twitter.com/nrcgov YouTube: http://www.youtube.com/user/NRCgov Flickr: http://www.flickr.com/photos/nrcgov/

Linkedin: https://www.linkedin.com/company/u-s--nuclear-regulatory-commission/

Blog Archive: https://public-blog.nrc-gateway.gov/

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Meeting Feedback

1. Mail in the NRC feedback form.

This form will be emailed to all attendees.

- or -

2. On Any Device or Computer:

- Go to the Public Meeting Schedule at (www.nrc.gov/pmns/mtg?do=recent30days)

- Locate this meeting using the sorting buttons and click on the Meeting Feedback Form Link.

Note: Meetings are sorted by date and time. Use Last to get to todays date.

U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 26

QUESTION AND ANSWER GROUND RULES To ask a question at the end of the presentation, use the raise hand button that appears at the top of the Teams screen.

You will then be allowed to unmute your microphone and ask your question in the order it was received.

Please provide your name and any affiliation (e.g., member of the public, local government official, non-government organization, etc.)

Each speaker will be given up to 3 minutes for their question/comment.

Your microphone will be muted at the conclusion of your question.

The NRC will then respond. You will then be allowed to unmute your microphone for a follow-up or clarifying question.

The meeting will end promptly at 6:00 pm (EDT) or earlier if we have no further questions.

Please be respectful.

Thank you!

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Questions In order to ask a question please use the Raise Hand feature in Teams Unmute your microphone when called upon:

Public Affairs Viktoria Mitlyng Prema Chandrathil Senior Public Affairs Officer Public Affairs Officer 630-201-1345 630-829-9663 Viktoria.Mitlyng@nrc.gov Prema.Chandrathil@nrc.gov NRC Response to COVID-19: https://www.nrc.gov/about-nrc/covid-19/reactors/

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