ML20223A056

Slides for Decommissioning Webinar Regarding Duane Arnold Energy Center on August 12, 2020

ML20223A056
Person / Time
Site:	Duane Arnold
Issue date:	08/12/2020
From:	Ted Carter Division of Decommissioning, Uranium Recovery and Waste Programs
To:
Carter T
References
Download: ML20223A056 (29)

Text

Todays Presenters Bruce Watson Ted Carter Rhex Edwards Jennifer Dalzell 2

NRC Staff Response to COVID-19 NRC staff have been engaged with the industry (NEI and the Industry Working Group) on decommissioning and ISFSI-only facilities.

NRC management has communicated with NEI to ensure the industry maintains safety and security vigilance on decommissioning and ISFSI-only sites during these unusual times.

NRC Project Managers and the Regional Inspectors have frequent communications with the licensees on COVID-19 issues and are not aware of any issues that would affect public health and safety at decommissioning reactors.

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Power Reactors in Decommissioning 13 units in active decommissioning 11 units in SAFSTOR Duane Arnold began planning for decommissioning after it notified NRC 4

Duane Arnold History Feb 22, 1974 -

Operating license issued for Duane Arnold Energy Center Dec. 16, 2010 -

License Renewed Oct. 30, 2020 -

Will cease operations 5

Near-term Developments Certification of permanent cessation of operations Review of Post-Certification of Shutdown permanent Decommissioning removal of fuel Activities Report from reactor (PSDAR)

Accession No. ML20062E489 6

Post-Shutdown Decommissioning Activities Report (PSDAR)

It should contain:

Description of planned decommissioning activities High-level schedule of planned decommissioning activities Site-specific cost estimate for the decommissioning Environmental impacts of decommissioning 7

PSDAR Review Process Normally, the NRC notices receipt of the PSDAR in the Federal Register and requests public comments It also schedules a public meeting to discuss PSDAR &

solicit public comments 8

Duane Arnold Decommissioning Schedule & Cost Summary Permanently Cease Operations by October 2019 Decommissioning 2020 Trust Fund Balance Prepare the plant for $ 568 M (2018 Dollars)

SAFSTOR and transfer spent fuel to dry Estimated cost to complete storage by 2024 Radiological Spent Fuel to DOE by Decommissioning 2059 $724 M in (2018 Dollars)

Complete Radiological Decommissioning by 2080.

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Reactor Decommissioning The process of removing a reactor facility safely from the operating mode to a permanent shutdown condition and reducing the residual radioactivity to a level that permits the release of the property for unrestricted use and termination of the license BEFORE AFTER Big Rock Point 10

Decommissioning Options DECON - Equipment, structures, etc., are removed or decontaminated to a level that permits unrestricted release SAFSTOR - Plant is placed in a safe, stable condition and maintained in this state until it is subsequently decontaminated to levels that permit unrestricted release 11

How Long to Decommission?

Under NRC regulations, the process must be completed within 60 years 12

Decommissioning Process - Phases Before Cleanup During Cleanup After Cleanup 13

Ready the plant for decommissioning Move spent nuclear fuel to dry cask storage Submit & update PSDAR 14

Removal of structures & components Soil remediation Radioactive waste shipments 15

Site restoration NRC license termination Spent fuel management 16

Oversight Program After Shutdown Oversight and monitoring conducted over the entire period of decommissioning process Oversight program is described in Inspection Manual Chapters (IMC) 2561, 2202 and 2690 17

Oversight Program After Shutdown Decommissioning inspection program includes both core and discretionary inspections Implementation depends on activities being planned or performed.

Post-Operation Transition Phase Actively Decommissioning - Fuel in Spent Fuel Pool Actively Decommissioning - No Fuel in Spent Fuel Pool SAFSTOR - Fuel in Spent Fuel Pool SAFSTOR - No Fuel in Spent Fuel Pool Final Surveys under way 18

How Does Emergency Planning Change?

Emergency preparedness remains All hazards approach utilized vs. formal pre-planned off-site radiological response plans 19

How will plant security change?

Security controls remain in place Some key features include: intrusion detection and response, assessment of alarms, and off-site assistance, when necessary 20

What Happens to the Spent Fuel?

Removed from spent fuel pool Stored on-site in dry cask storage systems Safety and security programs remain until fuel removed from site 21

NRC ISFSI Inspection Program Inspections performed according to guidance in Inspection Manual Chapter 2690 Inspections cover all activities related to ISFSIs from design to operation 22

NRC ISFSI Inspection Program (contd.)

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Is the Spent Fuel Pool Safe?

Robust structures Designed to withstand severe natural events Regulated design features &

operational practices implemented to maintain fuel in safe condition 24

How Does the NRC Make Decisions on Post-Shutdown Changes?

Public Involvement on Decommissioning Public meeting to discuss the decommissioning process and the plants PSDAR NRC staff typically provide briefings at meetings of state/citizen decommissioning advisory panels An opportunity for a hearing Public meeting on License Termination Plan 26

NRC References 27

Links for NRC References IMC 2561: Decommissioning Power Reactor Inspection Program RG 1.184: Decommissioning of Nuclear Power Reactors NUREG 1628: Staff Responses to FAQs Concerning Decommissioning of Nuclear Power Reactors NRC Backgrounder: Decommissioning of Nuclear Power Plants NRC YouTube Video on Decommissioning 28

Questions Viktoria.Mitlyng@NRC.GOV Prema.Chandrathil@NRC.GOV 630-829-9662 630-829-9663 29