Letter Sequence RAI |
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EPID:L-2018-LLA-0043, Package: Acceptance Review of Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1 to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043) - Request for Supplemental Information (Approved, Closed) |
Results
Other: ML18144A087, ML18255A093, ML18255A094, ML18255A096, ML18255A097, ML18255A098, ML18255A101, ML18255A102, ML19177A014, ML20136A049, ML20136A050, ML20136A051
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MONTHYEARML18134A1112018-05-15015 May 2018 Enclosure 1: Rsi (Non-Proprietary) (Letter to J. Bondre Acceptance Review of Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1 to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043 Project stage: Acceptance Review ML18134A1092018-05-15015 May 2018 Package: Acceptance Review of Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1 to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043) - Request for Supplemental Information Project stage: Request ML18134A1102018-05-15015 May 2018 Letter to J. Bondre Acceptance Review of Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1 to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043) - Request for Supplemental Informa Project stage: Acceptance Review ML18144A0872018-05-23023 May 2018 Conversation Record with D. Williford/Tn Americas LLC Clarification Call with Tn Americas LLC (Tn) on Request for Supplemental Information (Rsi) in Regard to Tn CoC 1042 Eos (Dkt No.: 72-1042, Conversation Held on May 23, 2018 Project stage: Other ML18213A0382018-08-0101 August 2018 Enclosursi (Letter to P. Narayanan Acceptance Review (Continued) of Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1 to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043) Project stage: Acceptance Review ML18213A0362018-08-0101 August 2018 Package: Acceptance Review (Continued) of Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1 to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043) - Request for Supplemental Inform Project stage: Request ML18213A0372018-08-0101 August 2018 Letter to P. Narayanan Acceptance Review (Continued) of Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1 to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043) - Request for Suppl Project stage: Acceptance Review ML18255A0932018-08-27027 August 2018 Enclosure 1 - Affidavit Project stage: Other ML18255A0982018-08-30030 August 2018 Enclosure 6 - CoC 1042 Proposed Amendment 1, Revision 2, Technical Specifications Project stage: Other ML18255A0922018-08-30030 August 2018 Acceptance Review (Continued) of Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1, to the Nuhoms Eos System, Revision 2 - Response to Second Request for Supplemental Information Project stage: Supplement ML18255A0942018-08-30030 August 2018 Enclosure 2 - Rsis and Responses Project stage: Other ML18255A0962018-08-30030 August 2018 Enclosure 4 - List of New CoC 1042 Amendment 1 Technical Specifications Changes and Justifications Project stage: Other ML18255A0972018-08-30030 August 2018 Enclosure 5 - List of Changed TS and UFSAR Pages Involved in CoC 1042 Amendment 1, Revision 2 Project stage: Other ML18255A1012018-08-30030 August 2018 Enclosure 8 - CoC 1042 Amendment 1, Revision 2, UFSAR Changed Pages Project stage: Other ML18255A1022018-08-30030 August 2018 Enclosure 9 - Additional Changes Not Associated with the Rsis Project stage: Other ML18261A1362018-09-17017 September 2018 Letter to P. Narayana Acceptance Review Completed for Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1, to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043) Project stage: Acceptance Review ML18355A8632018-12-21021 December 2018 Letter to P. Narayanan Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1, to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043) - Request for Additional Information Project stage: RAI ML18355A8642018-12-21021 December 2018 Enclosure 1 - RAI (Non-Proprietary) (Letter to P. Narayanan Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1, to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043) - Request for Project stage: RAI ML18355A8622018-12-21021 December 2018 Package: Letter to P. Narayanan Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1, to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043) - Request for Additional Information Project stage: Request ML19015A1482019-01-14014 January 2019 Conversation Record with G. Mathues/Tn Americas LLC Clarification Call on RAI #1 (Part 1), for CoC 1042 Eos Amendment 1 Application, Docket No. 72-1042 Project stage: RAI ML19017A0192019-01-29029 January 2019 Enclosurai 6-7 (Letter to P. Narayanan Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1, to Nuhoms Eos System (Dkt No. 72-1042, CAC No. 001028, EPID: L--2018-LLA-0043)-Request for Additional Information Pa Project stage: RAI ML19017A0182019-01-29029 January 2019 Letter to P. Narayanan Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1, to Nuhoms Eos System (Dkt No. 72-1042, CAC No. 001028, EPID: L--2018-LLA-0043)-Request for Additional Information Part 2 Project stage: RAI ML19017A0172019-01-29029 January 2019 Package: Letter to P. Narayanan Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1, to Nuhoms Eos System (Dkt No. 72-1042, CAC No. 001028, EPID: L--2018-LLA-0043)-Request for Additional Information Part 2 Project stage: Request ML19123A1132019-05-0303 May 2019 Conversation Record with G. Mathues/Tn Americas LLC Clarification Call on RAI #1 Response for CoC 1042 Eos Amendment #1, Conversation Held on May 1, 2019 Project stage: RAI ML19144A2962019-05-23023 May 2019 Conversation Record with G. Mathues Et Al./Tn Americas LLC Clarification Call on RAI #1 Response for CoC 1042 Eos Amendment #1, Conversation Held on 05/22/2019 Project stage: RAI ML19158A3702019-06-0606 June 2019 Package: E-Mail with Attachment Feedback to Tn on Its Response to RAI 6-7.R1 Project stage: Request ML19164A0702019-06-12012 June 2019 Conversation Record with G. Mathues Et Al./Tn Americans LLC Clarification Call on RAI #1 Response for CoC 1042 Eos Amendment #1 Project stage: RAI ML19177A0142019-06-26026 June 2019 Letter to P. Narayanan Revised Schedule to Complete Review for Tn Americas LLC Application for Certificate If Compliance No. 1042, Amendment No. 1 to Nuhoms Eos System (Dkt No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043) Project stage: Other ML20136A0522020-05-19019 May 2020 Final SER - Eos Amd 1 Project stage: Approval ML20136A0482020-05-19019 May 2020 CoC 1042 Eos A1 Issuance Package to Tn Project stage: Request ML20136A0512020-05-19019 May 2020 Final Tech Specs - Eos Amd 1 Project stage: Other ML20136A0502020-05-19019 May 2020 Final CoC - Eos Amd 1 Project stage: Other ML20136A0492020-05-19019 May 2020 Issuance Letter - CoC 1042 - for the NUHOMS Eos System Project stage: Other 2019-01-14
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Category:Request for Additional Information (RAI)
MONTHYEARML24144A2712024-05-22022 May 2024 Enclosure - Eos Amendment 4 - RAI Response-Clarification Questions (Public) ML23324A4042023-12-0606 December 2023 Enclosure 1 Request for Additional Information ML23005A2332023-01-30030 January 2023 Enclosure 1 - CoC 1042 Amendment 4 - Rsi ML22341A1372022-12-0808 December 2022 Enclosure - RAI (New Scope Addition 3) ML22035A0382022-02-0202 February 2022 Enclosure (Public) - Clarification Questions for Tn Regarding RAI Responses for Eos A3 ML22055A4662022-02-0101 February 2022 Enclosure (Public) - Eos Coc 1042 Amd 3 RAI 10.1 ML21281A0752021-10-28028 October 2021 Enclosure 1 - Request for Additional Information (Non-Proprietary) ML21126A0382021-05-20020 May 2021 CoC 1042 Amendment 3 - Enclosure 1 ML20262H0862020-09-24024 September 2020 Alternative Request Pertaining to American Concrete Institute (ACI) Code for Eos Amendment 1 ML20091L0642020-03-31031 March 2020 Enclosure 1 - Request for Additional Information - Non-Proprietary ML20091L0632020-03-31031 March 2020 Transmittal Letter - CoC 1042 Amendment Number 2 Request for Additional Information ML19017A0192019-01-29029 January 2019 Enclosurai 6-7 (Letter to P. Narayanan Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1, to Nuhoms Eos System (Dkt No. 72-1042, CAC No. 001028, EPID: L--2018-LLA-0043)-Request for Additional Information Pa ML18355A8642018-12-21021 December 2018 Enclosure 1 - RAI (Non-Proprietary) (Letter to P. Narayanan Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1, to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043) - Request for ML18213A0382018-08-0101 August 2018 Enclosursi (Letter to P. Narayanan Acceptance Review (Continued) of Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1 to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043) ML18134A1112018-05-15015 May 2018 Enclosure 1: Rsi (Non-Proprietary) (Letter to J. Bondre Acceptance Review of Tn Americas LLC Application for Certificate of Compliance No. 1042, Amendment No. 1 to Nuhoms Eos System (Docket No. 72-1042, CAC No. 001028, EPID: L-2018-LLA-0043 2024-05-22
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Text
Request for Additional Information By letter dated February 15, 2018, as supplemented on June 14, 2018, and August 30, 2018, TN Americas LLC (TN) submitted to the U.S. Nuclear Regulatory Commission (NRC) an application for Certificate of Compliance (CoC) No. 1042, Amendment No. 1 to the NUHOMS EOS System, pursuant to the requirements of Part 72 of Title 10 of the Code of Federal Regulations (10 CFR Part 72).
This request for additional information (RAI) identifies additional information needed by the NRC staff in connection with its review of this amendment application. Each RAI below describes information needed by the staff to complete its review of the subject application.
Shielding RAIs:
RAI 6-7. Provide the burnup, initial enrichment, and cooling time (BECT) combination for the proposed spent fuel contents that represent the bounding source terms used to determine radiation dose rates. Alternatively, provide a list of BECTs to demonstrate that the source terms from these new contents to be authorized under Amendment 1 result in radiation dose rates that are within the design limits.
Paragraph 234(a) of 10 CFR Part 72 requires that the design of a spent fuel storage system meets the regulatory requirements of 10 CFR 72.236. For radiation protection, 72.236(d) states: Radiation shielding and confinement features must be provided sufficient to meet the requirements in §§ 72.104 and 72.106. The applicant performed a shielding analyses based on source terms listed in Tables 6-14 to 6-19 of Amendment 1, Revision 1 of the Safety Analysis Report (SAR) for selected BECT combinations. In Section 6.2 of the SAR, the applicant states:
The bounding HLZCs are used for dose rate analysis and that the source terms are developed to be reasonably bounding consistent with the limits on fuel qualification. However, the maximum burnup and minimum cooling time parameters provided in the proposed Technical Specifications (TS) Table 2.1 does not include an associated minimal enrichment value and does not mirror the fuel parameters used in the calculation of the design basis radiation sources as shown in Tables 6-14 to 6-19 of Amendment 1, Revision 1 of the SAR. Without the associated minimal enrichment, the source terms for a fuel assembly with a given burnup and cooling time are not defined. Although the applicant provides the decay heat limits for the various loading patterns in the TS, there is no information provided on the specific relationship between the decay heat and the radiological source terms. A fuel assembly with a given decay heat can produce a wide variation of radiological source terms.
It is important to note that the recommendations published in NUREG/CR-6716, Recommendations on Fuel Parameters for Standard Technical Specifications for Spent Fuel Storage Casks are based on a balanced evaluation of parameters important to safety while alleviating limitations in the TS to provide the certificate of compliance holders flexibility to make design changes under the provisions in 10 CFR 72.48. The staff requests this information to determine if the NUHOMS EOS spent fuel dry cask storage system design with the requested new contents meets the regulatory requirements of 10 CFR 72.236(d).
Enclosure