ML20100F221

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Rirp I-20-04 Rev. 4.3.2020
ML20100F221
Person / Time
Issue date: 04/08/2020
From: Paul Kallan
NRC/NRR/DNRL/NRLB
To:
Kallan P
References
Download: ML20100F221 (1)


Text

Enclosure 2 USED FUEL STORAGE AND TRANSPORTATION ISSUE RESOLUTION PLAN Issue Number: I-20-04 Performance Margins Recommendations: V-1, V-2 (Cat 3)

Rev. 4.3.2020

Title:

Revise regulatory guidance to reflect application of realistic dose rates and modeling of dose rates that recognize accumulated experience from loaded dry storage systems.

I.

Summary of Resolution Plan Industry and NRC will interact in public meetings and workshops as well as through letters to achieve the following:

Revise guidance in Section 6.4 of NUREG-1536 to:

1. Request typical/realistic/representative instead of bounding dose rates, consistent with the reduced safety significance of shared actual results;
2. Remove or appropriately modify the discussion that implies that the dose and dose rates provided in the FSAR demonstrate that the design is sufficient to meet the regulatory dose requirements.

Revise guidance in Chapter 6 of the proposed NUREG-2215 with respect to details of modeling of the dose rate evaluations to reflect the experiences of over 3,000 loaded dry storage systems.

II.

Proposed Actions and Due Dates ACTION RESPONSIBLE PARTY DUE DATE

1. Complete initial revision of RIRP NEI April 8, 2020
2. Review and discuss bases for changes in NUREGs NEI & NRC April 15, 2020
3. Develop draft proposed changes to NUREG-1536 and NUREG-2215 NEI TBD
4. NEI presents proposed changes at future workshop and reconciles differences in understanding during discussions with NRC staff NEI & NRC TBD
5. NRC implements changes to the subject NUREGs NRC December 31, 2020
6. NRC provides letter to NEI affirming closure of RIRP I-20-04 NRC December 31, 2020
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