IR 05000237/2023501

Emergency Preparedness Biennial Exercise Inspection Report 05000237/2023501 and 05000249/2023501

ML23110A634
Person / Time
Site:	Dresden
Issue date:	04/21/2023
From:	Steven Orth NRC/RGN-III/DRSS/SEPIR
To:	Rhoades D Constellation Energy Generation, Constellation Nuclear
References
IR 2023501
Download: ML23110A634 (1)

Text

April 21, 2023

SUBJECT:

DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3 - EMERGENCY PREPAREDNESS BIENNIAL EXERCISE INSPECTION REPORT 05000237/2023501 AND 05000249/2023501

Dear David Rhoades:

On March 30, 2023, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Dresden Nuclear Power Station, Units 2 and 3 and discussed the results of this inspection with P. Boyle, Site Vice President, 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, Signed by Orth, Steven on 04/21/23 Steven K. Orth, Chief Security, Emergency Preparedness & Incident Response Branch Division of Radiological Safety and Security Docket Nos. 05000237 and 05000249 License Nos. DPR-19 and DPR-25

Enclosure:

As stated

Inspection Report

Docket Numbers: 05000237 and 05000249 License Numbers: DPR-19 and DPR-25 Report Numbers: 05000237/2023501 and 05000249/2023501 Enterprise Identifier: I-2023-501-0002 Licensee: Constellation Energy Generation, LLC Facility: Dresden Nuclear Power Station, Units 2 and 3 Location: Morris, IL Inspection Dates: March 27, 2023 to March 30, 2023 Inspectors: D. Chyu, Project Engineer G. Hansen, Sr. Emergency Preparedness Inspector J. Kutlesa, Emergency Preparedness Inspector T. McGowan, Resident Inspector Approved By: Steven K. Orth, Chief Security, Emergency Preparedness & Incident Response Branch Division of Radiological Safety and Security Enclosure

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an emergency preparedness biennial exercise inspection at Dresden Nuclear Power Station, Units 2 and 3, 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 28, 2023. The exercise scenario simulated an event at the Dresden Nuclear Power Station that initiated with the declaration and notification of an Unusual Event in response to an unplanned drop in spent fuel pool (SFP) level and an unplanned rise in area radiation monitor (ARM) readings in the refueling floor area. The scenario conditions simulated the escalation of the significance of the event, requiring the declaration of an Alert, 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 biennial emergency plan exercise on February 23,

OTHER ACTIVITIES - BASELINE

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

EP01: Drill/Exercise Performance (DEP) Sample (IP Section 02.12) ===

(1) January 1, 2022 through December 31, 2022 EP02: Emergency Response Organization (ERO) Drill Participation (IP Section 02.13)

(1 Sample)

(1) January 1, 2022 through December 31, 2022 EP03: Alert and Notification System (ANS) Reliability Sample (IP Section 02.14) (1 Sample)

(1) January 1, 2022 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 30, 2023, the inspectors presented the emergency preparedness biennial exercise inspection results to P. Boyle, Site Vice President, and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection Type Designation Description or Title Revision or

Procedure Date

71114.01 Corrective Action AR 4451263 Rollup IR for 3Q2021 EP Integrated Drill Facilities 10/06/2021

Documents AR 4467117 2021 Medical HP Drill Hospital Response 12/16/2021

AR 4525264 Dresden Off-Year Exercise EOF Objective Failure 09/28/2022

AR 4525291 Dresden Off-Year Exercise DEP Failure SCR 09/28/2022

AR 4527609 EP Off-Year Exercise TSC DC Failures and Sat w Comment 10/07/2022

AR 4527612 EP Off-Year Exercise SCR DC Failures 10/07/2022

AR 4527624 EP Off-Year Exercise OSC DC Failures 10/07/2022

AR 4529389 3Q2022 Integrated EP Drill Rollup Facilities 10/14/2022

AR 4558975 TSC Dresden 2023 Pre Ex TSC LL 03/03/2023

AR 4558976 SCR Dresden 2023 Pre Ex LL 03/03/2023

AR 4558978 Overall Fac Dresden 2023 Pre Ex Facility Scenario Issues 03/03/2023

AR 4559738 Dresden 2023 Pre Ex Lessons Learned 03/06/2023

Miscellaneous Dresden Nuclear Power Station 2023 NRC Graded Exercise 01/26/2023

Manual

Procedures EP-AA-1004, Emergency Action Levels for Dresden Station 13

Addendum 3

EP-AA-110-200 Dose Assessment 15

EP-AA-110-201 On Shift Dose Assessment 9

EP-AA-111 Emergency Classification and Protective Action 23

Recommendations

EP-AA-112 Drills and Exercise Program 22

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

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

EP-AA-112-600 JIC Activation and Operation 15

EP-AA-114 Notifications 17

EP-AA-122-300 Drill and Exercise Evaluation 3

EP-AA_112-100 Control Room Operations 19

EP-AA_112-200 TSC Activation and Operation 14

EP-DR-1000 Dresden Station Radiological Emergency Plan 0

EP-MW-114-100 Midwest Region Off-Site Notifications 20

Inspection Type Designation Description or Title Revision or

Procedure Date

71114.08 Miscellaneous Dresden Nuclear Power Station 2023 NRC Graded Exercise 01/26/2023

Manual

71151 Miscellaneous Alert Notification System (ANS) Reliability Performance 01/01/2022 -

Indicator Data 12/31/2022

Emergency Response Organization (ERO) Drill Participation 01/01/2022 -

Performance Indicator Data 12/31/2022

Drill / Exercise Performance (DEP) Performance Indicator 01/01/2022 -

Data 12/31/2022

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