IR 05000454/2021501

Emergency Preparedness Biennial Exercise Inspection Report 05000454/2021501 and 05000455/2021501

ML21110A655
Person / Time
Site:	Byron
Issue date:	04/21/2021
From:	Patricia Pelke NRC/RGN-III
To:	Rhoades D Exelon Generation Co
References
IR 2021501
Download: ML21110A655 (8)

Text

April 21, 2021

SUBJECT:

BYRON STATION - EMERGENCY PREPAREDNESS BIENNIAL EXERCISE INSPECTION REPORT 05000454/2021501 AND 05000455/2021501

Dear Mr. Rhoades:

On March 26, 2021, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Byron Station and discussed the results of this inspection with Mr. H. Welt 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, Patricia Digitally signed by Patricia J. Pelke J. Pelke Date: 2021.04.21 10:12:44 -05'00'

Patricia J. Pelke, Chief Operations Branch Division of Reactor Safety Docket Nos. 05000454 and 05000455 License Nos. NPF-37 and NPF-66

Enclosure:

As stated

Inspection Report

Docket Numbers: 05000454 and 05000455 License Numbers: NPF-37 and NPF-66 Report Numbers: 05000454/2021501 and 05000455/2021501 Enterprise Identifier: I-2021-501-0010 Licensee: Exelon Generation Company, LLC Facility: Byron Station Location: Byron, IL Inspection Dates: March 22, 2021 to March 26, 2021 Inspectors: J. Dalzell, Reactor Inspector M. Garza, Emergency Preparedness Inspector G. Hansen, Senior Emergency Preparedness Inspector P. Smagacz, Resident Inspector Approved By: Patricia J. Pelke, Chief Operations Branch Division of Reactor Safety Enclosure

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an emergency preparedness biennial exercise inspection at Byron Station, 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.

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.

71114.01 - Exercise Evaluation

Inspection Review (IP Section 02.01-02.11) (1 Sample)

(1) The inspectors evaluated the biennial emergency plan exercise on March 23, 2021. The exercise scenario simulated an event at Byron Station that initiated with the declaration and notification of an Alert in response to the failure of an automatic trip to shut down the reactor, and subsequent manual actions taken at the reactor control consoles were not successful in shutting down the reactor. The scenario conditions simulated the escalation of the significance of the event, requiring the declaration of a Site Area Emergency, and then a General Emergency, as well as the development of Protective Action Recommendations that were communicated to the required state and local government agencies.

71114.08 - Exercise Evaluation Scenario Review

Inspection Review (IP Section 02.01 - 02.04) (1 Sample)

(1) The inspectors reviewed and evaluated the proposed scenario for the biennial emergency plan exercise on February 18,

OTHER ACTIVITIES - BASELINE

===71151 - Performance Indicator Verification The inspectors verified licensee performance indicators submittals listed below:

EP01: Drill/Exercise Performance (IP Section 03.12) ===

(1) July 01, 2020 through December 31, 2020

EP02: ERO Drill Participation (IP Section 03.13) (1 Sample)

(1) July 01, 2020 through December 31, 2020

EP03: Alert & Notification System Reliability (IP Section 03.14) (1 Sample)

(1) July 01, 2020 through December 31,

INSPECTION RESULTS

No findings were identified.

EXIT MEETINGS AND DEBRIEFS

The inspectors verified no proprietary information was retained or documented in this report.

• On March 26, 2021, the inspectors presented the emergency preparedness biennial exercise inspection results to Mr. H. Welt and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection Type Designation Description or Title Revision or

Procedure Date

71114.01 Corrective Action AR 04293136 Byron 2019 EP NRC Graded Exercise - Facilities/Equip 10/29/2019

Documents Issues

AR 04307364 Byron ERO Duty Team Member Qualification Lapse 01/01/2020

AR 04309602 MET Tower 250 Ft Wind Speed Instrument Failure 01/10/2020

AR 04333172 EP-Ogle County Sheriff / EOC did not Respond on NARS 04/06/2020

Rollcall

AR 04347950 RSH seismic monitor has improper indication 06/04/2020

AR 04353687 Byron 2020 HP Drill - Lessons Learned 06/12/2020

AR 04359810 NRC (ENS) Red Phone Not Working in MCR 07/30/2020

AR 04360703 Ogle County failed to respond to NARS roll call test 08/03/2020

AR 04363392 250FT wind direction Y4005 computer point failed 08/15/2020

AR 04368127 Byron EP 2020 Off-Year Exercise - SCR Performance 08/25/2020

AR 04368136 Byron EP 2020 Off-Year Exercise - TSC Performance 08/25/2020

AR 04368140 Byron EP 2020 Off-Year Exercise - OSC Performance 08/25/2020

AR 04371960 EP Communicator Qualification 09/25/2020

AR 04375471 NRC RED phone in the MCR 10/09/2020

AR 04388094 ERO Members Miss Annual EP Training Sessions 12/03/2020

AR 04390048 ERO Vacancies Identified - New Members Needed 12/14/2020

Miscellaneous Two Years of Drill and Exercise Evaluation Results 03/01/2019 -

03/26/2021

PowerPoint Presentation; Byron Biennial Exercise - Exercise 03/26/2021

Evaluation Results

Byron 2019 NRC Graded Exercise Evaluation Report 11/19/2019

RS-21-010 Byron 2021 Emergency Preparedness Biennial Exercise 01/21/2020

Scenario

Procedures EP-AA-1000 Exelon Nuclear Standardized Radiological Emergency Plan 33

EP-AA-1002 Exelon Nuclear Radiological Emergency Plan Annex for 36

Byron Station

EP-AA-1002, Exelon Nuclear Emergency Action Levels for Byron Station 5

Addendum 3

EP-AA-110-200 Dose Assessment 13

Inspection Type Designation Description or Title Revision or

Procedure Date

EP-AA-110-302 Core Damage Assessment 10

EP-AA-111 Emergency Classification and Protective Action 23

Recommendations

EP-AA-112 Emergency Response Organization (ERO) / Emergency 22

Response Facility (ERF) Activation and Operation

EP-AA-112-100 Control Room Operations 19

EP-AA-112-200 TSC Activation and Operation 14

EP-AA-112-300 OSC Activation and Operation 14

EP-AA-112-400 EOF Activation and Operation 15

EP-AA-113 Personnel Protective Actions 15

EP-AA-114 Notifications 17

71114.08 Miscellaneous RS-21-010 Byron Station 2021 Emergency Preparedness Biennial 01/21/2020

Exercise Scenario

71151 Miscellaneous NRC PI Data Sheets; NRC Indicator Alert Notification System 07/01/2020 -

(ANS) Reliability 12/31/2020

NRC PI Data Sheets; NRC Indicator Drill and Exercise 07/01/2020 -

Performance (DEP) 12/31/2020

NRC PI Data Sheets; Emergency Response Organization 07/01/2020 -

(ERO) Readiness 12/31/2020

NEI 99-02 Regulatory Assessment Performance Indicator Guideline 7

6