Letter Sequence Other |
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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:Response to Request for Additional Information (RAI)
MONTHYEARML23179A1202023-06-28028 June 2023 Application for Amendment 4 to NUHOMS Eos Certificate of Compliance No. 1042, Revision 2 (Docket 72-1042, CAC No. 001028, EPID: L-2022-LLA-0017) - Supplemental Responses to Request for Supplemental Information ML23089A1752023-03-30030 March 2023 Tn Americas LLC Application for Amendment 4 to NUHOMS Eos Certificate of Compliance No. 1042, Revision 1 - Response to Request for Supplemental Information ML22355A2192022-12-21021 December 2022 Application for Amendment 3 to NUHOMS Eos Certificate of Compliance No. 1042, Revision 11 (Docket 72-1042, CAC No. 001028, EPID: L-2021-LLA-0055) - Response to Request for Additional Information (New Scope Addition 3 - ASME NOG-1 Exceptions ML22224A0412022-08-12012 August 2022 Tn Americas, LLC, Submittal of Response to Request for Supplemental Information - Application for Amendment 18 to Standardized NUHOMS Certificate of Compliance No. 1004 for Spent Fuel Storage Casks, Revision 1 ML22158A2932022-06-0707 June 2022 Application for Amendment 3 to NUHOMS Eos Certificate of Compliance No. 1042, Revision 6 (Docket 72-1042, CAC No. 001028, EPID: L-2021-LLA-0055) - Revised Responses to Request for Additional Information (RAIs 9-1 and 9-2) ML22056A4582022-02-25025 February 2022 Application for Amendment 3 to NUHOMS Eos Certificate of Compliance No. 1042, Revision 5 - Response to Request for Additional Information (New Scope) and Revised Responses to Request for Additional Information ML21334A2062021-11-30030 November 2021 Tn Americas LLC, Application for Amendment 3 to NUHOMS Eos Certificate of Compliance No. 1042, Revision 4 (Docket 72-1042, CAC No. 001028, EPID: L-2021-LLA-0055) - Response to Request for Additional Information ML21246A1362021-09-0303 September 2021 Tn Americas LLC, Application for Amendment 3 to NUHOMS Eos Certificate of Compliance No. 1042, Revision 3 (Docket 72-1042, CAC No. 001028, EPID: L-2021-LLA-0055) - Revised Response to Obs 4-5 and Revised UFSAR Pages ML21174A2312021-06-23023 June 2021 Tn Americas, LLC, Application for Amendment 3 to NUHOMS Eos Certificate of Compliance No. 1042 Revision 1, Response to Request for Supplemental Information ML20315A4272020-10-29029 October 2020 Enclosure 11 - Additional Changes Not Associated with the RAIs ML20315A4282020-10-29029 October 2020 Enclosure 12 - Responses to Request for Additional Information ML20190A1382020-06-30030 June 2020 Enclosure 3: Responses to Request for Additional Information ML18255A0942018-08-30030 August 2018 Enclosure 2 - Rsis and Responses 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 2023-06-28
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RSIs and Responses Enclosure 2 to E-52372 Page 1 of 4 Criticality/Shielding CRITICALITY/SHIELDING RSI 1 The staff issued an RSI requesting specification of the new contents, which includes failed fuel and damaged fuel, and information on how the failed fuel is confined in the fuel cell. In response to the staff's RSI, the applicant referred to the definition of intact fuel in Table 2-3 and 2-4 from the Safety Analysis Report, Revision 0. The staff notes that the information in these referenced tables is inconsistent with the definition of failed fuel in the applicant's proposed Technical Specifications included with the submittal. Therefore, the staff cannot determine the characteristics of the new contents necessary to perform a criticality and shielding review of the cask design. Specifically, the allowable quantity of the contents per fuel cell and the physical form and the dimensions (i.e., rod segments, loose pellets) is needed. In order to determine the geometry and source distributions for the contents, the staff needs to understand how the content is confined in the fuel cell and the potential for fuel relocation/reconfiguration under normal and off-normal operations and accident conditions. The staff needs this information to proceed with its review to determine if the NUHOMS EOS system with the requested new contents meets the regulatory requirements of 10 CFR 72.124(a), 72.124(b), 10 CFR 72.236(c), and 10 CFR 72.236(d). RESPONSE TO CRITICALITY/SHIELDING RSI 1: Fuel may be categorized as intact, damaged, or failed. The potential for fuel reconfiguration for each of these fuel categories under normal, off-normal, and accident conditions has been added as new Updated Final Safety Analysis Report (UFSAR) Table 2-4a. The criticality, shielding, and thermal analyses consider fuel reconfiguration as appropriate, and damaged and failed fuel contents are limited considering reconfiguration. All fuel categorized as failed shall be placed in a failed fuel canister (FFC). Accordingly, the definition of failed fuel in Section 1.1 of the Technical Specifications (TS) is revised to reflect this. Failed fuel may include fuel assemblies, fuel rods, segments of fuel rods, fuel pellets, and debris. As described in the response to Materials RSI 1,drawing sheets showing the FFC have been added to UFSAR Drawing EOS01-1010-SAR in Chapter 1. FFCs are not required for damaged fuel assemblies, as damaged fuel assemblies maintain their geometry under normal and off-normal conditions. The pressurized water reactor (PWR) fuel assembly classes are summarized in UFSAR Table 2-2 and Table 2-4. The failed fuel content of each FFC is limited to the maximum metric tons of uranium (MTU) of an intact fuel assembly for each class. These limits are summarized in the TS as Table 2 and included in the UFSAR as new Table 2-4b to provide the maximum uranium loadings per FFC for failed PWR fuel. TS Section 2.1 is also revised to refer to TS Table 2 for maximum uranium loadings. UFSAR Chapter 6 (Shielding Evaluation) and Chapt er 7 (Criticality Evaluation) have also been revised to clearly indicate that no credit is taken for the FFC or any secondary containers.
Reference made to the "RSB" (rod storage basket) has been deleted throughout the chapters because the "RSB" is simply an example of a type of secondary container, and no credit is taken for secondary containers.
RSIs and Responses Enclosure 2 to E-52372 Page 2 of 4 Failed control components may also be stored inside an FFC. The maximum Co-60 content for failed control components is the same as intact control components and is defined in TS Table 3. The characteristics of the spent fuel to be stored have also been updated in UFSAR Section 2.2 to reflect the changes in this response associated with failed fuel.
Application Impact: TS Sections 1.1 and 2.1 are revised as described in the response. TS Table 2 is added as described in the response. UFSAR Sections 2.2, 6.3.2, 7, 7.1, 7.2, 7.3.1, and 7.4 have been revised as described in the response. UFSAR Tables 7-80, and 7-81 have been revised and Tables 2-4a and 2-4b have been added as described in the response. UFSAR Figures 7-25 and 7-26 have been revised as described in the response.
RSIs and Responses Enclosure 2 to E-52372 Page 3 of 4 Materials MATERIALS RSI 1 With respect to the use of the damaged/failed fuel basket end caps and rod storage baskets 1.(or similar components) for the storage of failed fuel, provide the following information: a. Clarify if the rod storage basket (or a si milar component) performs any safety functions, such as confinement of gross fuel particles, debris, or damaged assemblies to a known volume within the dry shielded canister. Clarify how these components are relied on in the criticality, shielding, thermal, and structural evaluations, and in loading and retrievability operations. b. Provide design bases information and drawings for the rod storage basket (or a similar component) if these components perform or support safety functions. c. Provide an explanation of how the system meets the regulatory requirements of 10 CFR 72.236(h) and (m), and how the system is designed to allow the users to meet the regulatory requirements of 10 CFR 72.122(h)(1) if the rod storage basket (or a similar component) is categorized as not important to safety. d. Clarify whether failed fuel would always be placed in a rod storage basket (or a similar component). This information is necessary to determine compliance with 10 CFR 72.236(b), (h) and (m).
RESPONSE TO MATERIALS RSI 1: A failed fuel canister (FFC) has been added to the design and shall be used to handle failed fuel, as described in the following response.
- a. The EOS-37PTH DSC is designed to accommodate up to eight damaged fuel assemblies (FAs) or up to four FFCs, with the balance intact FAs. The definition of failed fuel has been revised in Section 1.1 of the Technical Specifications. The design of the new EOS-37PTH FFC (shown in new sheets of revised U pdated Final Safety Analysis Report (UFSAR) Drawing EOS01-1010-SAR) is similar to the FFCs already licensed for the 32PTH1 and 24PTH baskets, as discussed in Sections U.3.6.4 and P.3.6.4, respectively, of the CoC 1004 UFSAR. The FFC is protected by the fuel compartments and the only safety function is to confine the failed fuel (including particles and debris) to a known volume in the dry shielded canister. The FFC is not relied on in the criticality, shielding, thermal, or structural evaluations to perform a safety function. The FFC has slots on the upper portion of the liner to facilitate lifting and or unloading (and retrievability) of the FFC with the enclosed failed fuel contents, and a structural evaluation of the FFC, for lifting and handling, has been added to UFSAR Section 3.9.2.1A. UFSAR Chapter 9 has been revised to include operating procedures for the FFC, including handling during loading and unloading. b. The FFC geometry and the materials used for its fabrication are shown on a revision to UFSAR drawing EOS01-1010-SAR. A structural evaluation of the FFC is presented in UFSAR Section 3.9.2.1A.
RSIs and Responses Enclosure 2 to E-52372 Page 4 of 4
- c. The FFC is categorized as important-to-safety. Each FFC is constructed of sheet metal, and provided with a welded bottom closure and a removable top closure. Consistent with 10 CFR 72.122(h)(1), this ensures that failed fuel is confined so that degradation of the fuel during storage will not pose operational safety problems with respect to its removal from storage. The FFC has slots on the upper portion of the liner to facilitate lifting and unloading (and retrievability) of the FFC with the enclosed failed fuel contents using normal fuel handling means, thus ensuring compliance with 10 CFR 72.236(h) and (m). The FFC is provided with screens at the bottom and top to contain the failed fuel and allow fill/drainage of water from the FFC during loading operations. d. Consistent with the revised definition of failed fuel in Section 1.1 of the Technical Specifications, failed fuel will always be loaded into an FFC. Other conforming changes associated with the FFCs have also been made to UFSAR Chapters 2, 3, 4, 5 and 6.
Application Impact: Technical Specifications Section 1.1 has been revised as described in the response. UFSAR Sections 1.1, 1.2.1.1, 1.2.3.1, 1.4.1, 2.2, 2.4.2.1, 3.9.2.3A, 3.9.2.5, 4, 4.9.6.1, 4.9.6.2, 5.1, 6.1, 6.2.2, 9.1.1, 9.1.2 and 9.2.2 have been revised as described in the response. UFSAR Section 3.9.2.1A has been added as described in the response.
UFSAR Tables 2-1 and 4.9.6-10 have been revised as described in the response. UFSAR Figure 4.9.6-8 has been revised as described in the response. UFSAR Drawing EOS01-1010-SAR has been revised as described in the response.