ML21126A294
| ML21126A294 | |
| Person / Time | |
|---|---|
| Site: | 07201032 |
| Issue date: | 05/06/2021 |
| From: | Holtec |
| To: | Office of Nuclear Material Safety and Safeguards |
| Shared Package | |
| ML21126A266 | List: |
| References | |
| 5018083 | |
| Download: ML21126A294 (21) | |
Text
CoC Condition/Technical Specification Evaluation Form - CoC original Page 1 of 21 CoC Condition/TS Identifier: ____CoC-Des.______
- All LCOs also require an Applicability, Condition(s), Required Action(s), Completion Time(s),
Surveillance Requirement(s), and Frequency(ies). Refer to NUREG-1745 for additional guidance.
- In performing the risk insight evaluation above, the evaluator should think about subsequent changes to a relocated CoC requirement. Specifically, ask the question what is the likelihood and worst possible consequences of a future change to this requirement in the less conservative direction?
Requirement CoC
Description:
Model No.: HI-STORM FW MPC Storage System Description The HI-STORM FW MPC Storage System consists of the following components: (1) interchangeable multi-purpose canisters (MPCs), which contain the fuel; (2) a storage overpack (HI-STORM FW), which contains the MPC during storage; and (3) a transfer cask (HI-TRAC VW), which contains the MPC during loading, unloading and transfer operations. The MPC stores up to 44 pressurized water reactor fuel assemblies or up to 89 boiling water reactor fuel assemblies.
CoC Body Certified Design Section I. Technology YesSection II. Design Features No Appendix A - Inspections, Tests, and Evaluations No Appendix B.
Technical Specifications Section 1 Definitions, Use and Application No Section 2 Approved Contents (Selection Criteria)
A1 No A2 No A3 No Section 3 Limiting Conditions for Operation (LCOs)*
and Surveillance Requirements (SRs)
(Selection Criteria)
L1 No L2 No L3 No Section 4 Administrative Controls No Risk Insight**:
Will removing this requirement from the CoC/TS result in A significant increase in the probability or consequences of an accident previously evaluated in the cask FSAR?
N/A 6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 2 of 21 The possibility of a new or different kind of accident being created compared to those previously evaluated in the FSAR?
N/A A Significant reduction in the margin of safety for ISFSI or cask operation?
N/A Evaluation Summary Retain in CoC Section I as this is a description of the dry storage system.
6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 3 of 21 CoC Condition/TS Identifier: ____CoC-1______
- All LCOs also require an Applicability, Condition(s), Required Action(s), Completion Time(s),
Surveillance Requirement(s), and Frequency(ies). Refer to NUREG-1745 for additional guidance.
- In performing the risk insight evaluation above, the evaluator should think about subsequent changes to a relocated CoC requirement. Specifically, ask the question what is the likelihood and worst possible consequences of a future change to this requirement in the less conservative direction?
Requirement CoC Condition 1: Operating Procedures: Written operating procedures shall be prepared for handling, loading, movement, surveillance, and maintenance.
The users site-specific written operating procedures shall be consistent with the technical basis described in Chapter 9 of the FSAR.
CoC Body Certified Design Section I. Technology No Section II. Design Features No Appendix A - Inspections, Tests, and Evaluations No Appendix B.
Technical Specifications Section 1 Definitions, Use and Application No Section 2 Approved Contents (Selection Criteria)
A1 No A2 No A3 No Section 3 Limiting Conditions for Operation (LCOs)*
and Surveillance Requirements (SRs)
(Selection Criteria)
L1 No L2 No L3 No Section 4 Administrative Controls Yes Risk Insight**:
Will removing this requirement from the CoC/TS result in A significant increase in the probability or consequences of an accident previously evaluated in the cask FSAR?
No The possibility of a new or different kind of accident being created compared to those previously evaluated in the FSAR?
No A Significant reduction in the margin of safety for ISFSI or cask operation?
No 6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 4 of 21 Evaluation Summary The first sentence will be retained in Appendix B Section 4 as the statement relates to the organization and management of procedures. The second sentence will be deleted as this statement merely refers to the FSAR and so does not need to be repeated in the CoC.
6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 5 of 21 CoC Condition/TS Identifier: ____CoC-2______
- All LCOs also require an Applicability, Condition(s), Required Action(s), Completion Time(s),
Surveillance Requirement(s), and Frequency(ies). Refer to NUREG-1745 for additional guidance.
- In performing the risk insight evaluation above, the evaluator should think about subsequent changes to a relocated CoC requirement. Specifically, ask the question what is the likelihood and worst possible consequences of a future change to this requirement in the less conservative direction?
Requirement CoC Condition 2: Acceptance tests and maintenance program: Written acceptance tests and a maintenance program shall be prepared consistent with the technical basis described in Chapter 10 of the FSAR. At completion of welding the MPC shell to baseplate, an MPC confinement weld helium leak test shall be performed using a helium mass spectrometer.
The confinement boundary welds leakage rate test shall be performed in accordance with ANSI N14.5 to leaktight criterion. If a leakage rate exceeding the acceptance criteria is detected, then the area of leakage shall be determined and the area repaired per ASME Code Section III, Subsection NB, Article NB-4450 requirements. Re-testing shall be performed until the leakage rate acceptance criterion is met.
CoC Body Certified Design Section I. Technology No Section II. Design Features No Appendix A - Inspections, Tests, and Evaluations Yes Appendix B.
Technical Specifications Section 1 Definitions, Use and Application No Section 2 Approved Contents (Selection Criteria)
A1 No A2 No A3 No Section 3 Limiting Conditions for Operation (LCOs)*
and Surveillance Requirements (SRs)
(Selection Criteria)
L1 No L2 No L3 No Section 4 Administrative Controls No Risk Insight**:
Will removing this requirement from the CoC/TS result in A significant increase in the probability or consequences of an accident previously evaluated in the cask FSAR?
First sentence - No Rest of Section - Yes. This test confirms the MPC has been manufactured correctly and will provide confinement as designed. 6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 6 of 21 The possibility of a new or different kind of accident being created compared to those previously evaluated in the FSAR?
No A Significant reduction in the margin of safety for ISFSI or cask operation?
No Evaluation Summary First sentence will be deleted as this statement merely refers to the FSAR and so does not need to be repeated in the CoC. The rest of this section will be retained in Appendix A as it describes a test to provide reasonable assurance that an MPC has been manufactured and will operate in conformance with the certified design, and that the confinement safety function will be performed.
6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 7 of 21 CoC Condition/TS Identifier: ___CoC-3_______
- All LCOs also require an Applicability, Condition(s), Required Action(s), Completion Time(s),
Surveillance Requirement(s), and Frequency(ies). Refer to NUREG-1745 for additional guidance.
- In performing the risk insight evaluation above, the evaluator should think about subsequent changes to a relocated CoC requirement. Specifically, ask the question what is the likelihood and worst possible consequences of a future change to this requirement in the less conservative direction?
Requirement CoC Condition 3: Quality Assurance: Activities in the areas of design, purchase, fabrication, assembly, inspection, testing, operation, maintenance, repair, modification of structures, systems and components, and decommissioning that are important-to-safety shall be conducted in accordance with a Commission-approved quality assurance program which satisfies the applicable requirements of 10 CFR Part 72, Subpart G, and which is established, maintained, and executed with regard to the storage system.
CoC Body Certified Design Section I. Technology No Section II. Design Features No Appendix A - Inspections, Tests, and Evaluations No Appendix B.
Technical Specifications Section 1 Definitions, Use and Application No Section 2 Approved Contents (Selection Criteria)
A1 No A2 No A3 No Section 3 Limiting Conditions for Operation (LCOs)*
and Surveillance Requirements (SRs)
(Selection Criteria)
L1 No L2 No L3 No Section 4 Administrative Controls No Risk Insight**:
Will removing this requirement from the CoC/TS result in A significant increase in the probability or consequences of an accident previously evaluated in the cask FSAR?
No The possibility of a new or different kind of accident being created compared to those previously evaluated in the FSAR?
No 6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 8 of 21 A Significant reduction in the margin of safety for ISFSI or cask operation?
No Evaluation Summary Eliminate from CoC - not required as compliance with the QA provisions in 10 CFR 72 Subpart G is a regulatory requirement that must be met.
6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 9 of 21 CoC Condition/TS Identifier: ____CoC-4______
- All LCOs also require an Applicability, Condition(s), Required Action(s), Completion Time(s),
Surveillance Requirement(s), and Frequency(ies). Refer to NUREG-1745 for additional guidance.
- In performing the risk insight evaluation above, the evaluator should think about subsequent changes to a relocated CoC requirement. Specifically, ask the question what is the likelihood and worst possible consequences of a future change to this requirement in the less conservative direction?
Requirement CoC Condition 4: Heavy Loads Requirements: Each lift of an MPC, a HI-TRAC VW transfer cask, or any HI-STORM FW overpack must be made in accordance to the existing heavy loads requirements and procedures of the licensed facility at which the lift is made. A plant-specific review of the heavy load handling procedures (under 10 CFR 50.59 or 10 CFR 72.48, as applicable) is required to show operational compliance with existing plant specific heavy loads requirements.
Lifting operations outside of structures governed by 10 CFR Part 50 must be in accordance with Section 5.2 of Appendix A.
CoC Body Certified Design Section I. Technology No Section II. Design Features No Appendix A - Inspections, Tests, and Evaluations No Appendix B.
Technical Specifications Section 1 Definitions, Use and Application No Section 2 Approved Contents (Selection Criteria)
A1 No A2 No A3 No Section 3 Limiting Conditions for Operation (LCOs)*
and Surveillance Requirements (SRs)
(Selection Criteria)
L1 No L2 No L3 No Section 4 Administrative Controls Yes Risk Insight**:
Will removing this requirement from the CoC/TS result in A significant increase in the probability or consequences of an accident previously evaluated in the cask FSAR?
Yes Adherence to heavy load lifting procedures is necessary to preclude the possibility of a cask drop during loading operations inside the plants fuel handling building (per 10 CFR 50) and during transfer operations (per 10 CFR 72). A significant increase in the probability of a cask drop would occur if these heavy load handing procedures are not followed.
The possibility of a new or different kind of accident No 6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 10 of 21 being created compared to those previously evaluated in the FSAR?
A Significant reduction in the margin of safety for ISFSI or cask operation?
No Evaluation Summary Retain in Appendix B - Administrative Controls. Note that this administrative control is applicable to heavy load lifting procedures at the ISFSI. Lifts within the Reactor Building are governed by existing 10 CFR Part 50 license requirements.
6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 11 of 21 CoC Condition/TS Identifier: ___CoC-5_______
- All LCOs also require an Applicability, Condition(s), Required Action(s), Completion Time(s),
Surveillance Requirement(s), and Frequency(ies). Refer to NUREG-1745 for additional guidance.
- In performing the risk insight evaluation above, the evaluator should think about subsequent changes to a relocated CoC requirement. Specifically, ask the question what is the likelihood and worst possible consequences of a future change to this requirement in the less conservative direction?
Requirement CoC Condition 5: Approved Contents: Contents of the HI-STORM FW MPC Storage System must meet the fuel specifications given in Appendix B to this certificate.
CoC Body Certified Design Section I. Technology No Section II. Design Features No Appendix A - Inspections, Tests, and Evaluations No Appendix B.
Technical Specifications Section 1 Definitions, Use and Application No Section 2 Approved Contents (Selection Criteria)
A1 No A2 A3 Section 3 Limiting Conditions for Operation (LCOs)*
and Surveillance Requirements (SRs)
(Selection Criteria)
L1 No L2 No L3 No Section 4 Administrative Controls No Risk Insight**:
Will removing this requirement from the CoC/TS result in A significant increase in the probability or consequences of an accident previously evaluated in the cask FSAR?
No The possibility of a new or different kind of accident being created compared to those previously evaluated in the FSAR?
No A Significant reduction in the margin of safety for ISFSI or cask operation?
No Evaluation Summary Remove from the CoC - This statement in the CoC merely points to information in the Appendices.
6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 12 of 21 CoC Condition/TS Identifier: ___CoC-6_______
- All LCOs also require an Applicability, Condition(s), Required Action(s), Completion Time(s),
Surveillance Requirement(s), and Frequency(ies). Refer to NUREG-1745 for additional guidance.
- In performing the risk insight evaluation above, the evaluator should think about subsequent changes to a relocated CoC requirement. Specifically, ask the question what is the likelihood and worst possible consequences of a future change to this requirement in the less conservative direction?
Requirement CoC Condition 6: Design Features: Features or characteristics for the site or system must be in accordance with Appendix B to this certificate.
CoC Body Certified Design Section I. Technology No Section II. Design Features No Appendix A - Inspections, Tests, and Evaluations No Appendix B.
Technical Specifications Section 1 Definitions, Use and Application No Section 2 Approved Contents (Selection Criteria)
A1 No A2 No A3 No Section 3 Limiting Conditions for Operation (LCOs)*
and Surveillance Requirements (SRs)
(Selection Criteria)
L1 No L2 No L3 No Section 4 Administrative Controls No Risk Insight**:
Will removing this requirement from the CoC/TS result in A significant increase in the probability or consequences of an accident previously evaluated in the cask FSAR?
No The possibility of a new or different kind of accident being created compared to those previously evaluated in the FSAR?
No A Significant reduction in the margin of safety for ISFSI or cask operation?
No All important design features will be discussed in the CoC 6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 13 of 21 Evaluation Summary Deleted as this is an unnecessary cross-reference. All important design features will be included in the CoC or its Appendices.
6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 14 of 21 CoC Condition/TS Identifier: ____CoC-7______
- All LCOs also require an Applicability, Condition(s), Required Action(s), Completion Time(s),
Surveillance Requirement(s), and Frequency(ies). Refer to NUREG-1745 for additional guidance.
- In performing the risk insight evaluation above, the evaluator should think about subsequent changes to a relocated CoC requirement. Specifically, ask the question what is the likelihood and worst possible consequences of a future change to this requirement in the less conservative direction?
Requirement CoC Condition 7: Changes to the CoC: The holder of this certificate who desires to make changes to the certificate, which includes Appendix A (Technical Specifications) and Appendix B (Approved Contents and Design Features), shall submit an application for amendment of the certificate.
CoC Body Certified Design Section I. Technology No Section II. Design Features No Appendix A - Inspections, Tests, and Evaluations No Appendix B.
Technical Specifications Section 1 Definitions, Use and Application No Section 2 Approved Contents (Selection Criteria)
A1 No A2 No A3 No Section 3 Limiting Conditions for Operation (LCOs)*
and Surveillance Requirements (SRs)
(Selection Criteria)
L1 No L2 No L3 No Section 4 Administrative Controls No Risk Insight**:
Will removing this requirement from the CoC/TS result in A significant increase in the probability or consequences of an accident previously evaluated in the cask FSAR?
No The possibility of a new or different kind of accident being created compared to those previously evaluated in the FSAR?
No A Significant reduction in the margin of safety for ISFSI or cask operation?
No 6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 15 of 21 Evaluation Summary Eliminate from CoC - not required as 10CFR72 does not allow changes to the CoC of its appendices without an application for amendment to the certificate.
6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 16 of 21 CoC Condition/TS Identifier: ___CoC-8_______
- All LCOs also require an Applicability, Condition(s), Required Action(s), Completion Time(s),
Surveillance Requirement(s), and Frequency(ies). Refer to NUREG-1745 for additional guidance.
- In performing the risk insight evaluation above, the evaluator should think about subsequent changes to a relocated CoC requirement. Specifically, ask the question what is the likelihood and worst possible consequences of a future change to this requirement in the less conservative direction?
Requirement CoC Condition 8: Special Requirements for First System in Place: The air mass flow rate through the cask system will be determined by direct measurements of air velocity in the overpack cooling passages for the first HI-STORM FW MPC Cask System placed into service by any user with a heat load equal to or greater than 30 kW. The velocity will be measured using direct measurements of air velocity in the inlet vents. An analysis shall be performed of the cask system with the taken measurements to demonstrate that the measurements validate the analytic methods described in Chapter 4 of the FSAR.
The thermal validation test and analysis results shall be submitted in a letter report to the NRC pursuant to 10 CFR 72.4. To satisfy condition 8 for casks of the same system type, in lieu of additional submittals pursuant to 10 CFR 72.4, users may document in their 72.212 report a previously performed test and analysis submitted by letter report to the NRC that demonstrates validation of the analytic methods described in Chapter 4 of the FSAR.
This condition does not apply to the unventilated version of the system.
CoC Body Certified Design Section I. Technology No Section II. Design Features No Appendix A - Inspections, Tests, and Evaluations Yes Appendix B.
Technical Specifications Section 1 Definitions, Use and Application No Section 2 Approved Contents (Selection Criteria)
A1 No A2 No A3 No Section 3 Limiting Conditions for Operation (LCOs)*
L1 No L2 No L3 No 6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 17 of 21 and Surveillance Requirements (SRs)
(Selection Criteria)
Section 4 Administrative Controls No Risk Insight**:
Will removing this requirement from the CoC/TS result in A significant increase in the probability or consequences of an accident previously evaluated in the cask FSAR?
No The possibility of a new or different kind of accident being created compared to those previously evaluated in the FSAR?
No A Significant reduction in the margin of safety for ISFSI or cask operation?
Yes. This test confirms the MPC has been manufactured correctly and will provide heat removal as designed.
Evaluation Summary Retain in Appendix A as it describes a test to provide reasonable assurance that an MPC has been manufactured and will operate in conformance with the certified design, and that the heat removal safety function will be performed.
6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 18 of 21 CoC Condition/TS Identifier: ____CoC-9______
- All LCOs also require an Applicability, Condition(s), Required Action(s), Completion Time(s),
Surveillance Requirement(s), and Frequency(ies). Refer to NUREG-1745 for additional guidance.
- In performing the risk insight evaluation above, the evaluator should think about subsequent changes to a relocated CoC requirement. Specifically, ask the question what is the likelihood and worst possible consequences of a future change to this requirement in the less conservative direction?
Requirement CoC Condition 9: Pre-operational Testing and Training Exercise: A dry run training exercise of the loading, closure, handling, unloading, and transfer of the HI-STORM FW MPC Storage System shall be conducted by the licensee prior to the first use of the system to load spent fuel assemblies. The training exercise shall not be conducted with spent fuel in the MPC. The dry run may be performed in an alternate step sequence from the actual procedures, but all steps must be performed CoC Body Certified Design Section I. Technology No Section II. Design Features No Appendix A - Inspections, Tests, and Evaluations Yes Appendix B.
Technical Specifications Section 1 Definitions, Use and Application No Section 2 Approved Contents (Selection Criteria)
A1 No A2 No A3 No Section 3 Limiting Conditions for Operation (LCOs)*
and Surveillance Requirements (SRs)
(Selection Criteria)
L1 No L2 No L3 No Section 4 Administrative Controls No Risk Insight**:
Will removing this requirement from the CoC/TS result in A significant increase in the probability or consequences of an accident previously evaluated in the cask FSAR?
N/A The possibility of a new or different kind of accident being created compared N/A 6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 19 of 21 to those previously evaluated in the FSAR?
A Significant reduction in the margin of safety for ISFSI or cask operation?
N/A Evaluation Summary Retain in Appendix A as these testing and training exercises ensure that the equipment will operate and perform safety functions as designed.
6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 20 of 21 CoC Condition/TS Identifier: ____CoC-10______
- All LCOs also require an Applicability, Condition(s), Required Action(s), Completion Time(s),
Surveillance Requirement(s), and Frequency(ies). Refer to NUREG-1745 for additional guidance.
- In performing the risk insight evaluation above, the evaluator should think about subsequent changes to a relocated CoC requirement. Specifically, ask the question what is the likelihood and worst possible consequences of a future change to this requirement in the less conservative direction?
Requirement CoC Condition 10: Authorization: The HI-STORM FW MPC Storage System, which is authorized by this certificate, is hereby approved for general use by holders of 10 CFR Part 50 licenses for nuclear reactors at reactor sites under the general license issued pursuant to 10 CFR 72.210, subject to the conditions specified by 10 CFR 72.212, this certificate, and the attached Appendices A and B. The HI-STORM FW MPC Storage System may be fabricated and used in accordance with any approved amendment to CoC No. 1032 listed in 10 CFR 72.214.
Each of the licensed HI-STORM FW MPC Storage System components (i.e., the MPC, overpack, and transfer cask), if fabricated in accordance with any of the approved CoC Amendments, may be used with one another provided an assessment is performed by the CoC holder that demonstrates design compatibility. The HI-STORM FW MPC Storage System may be installed on an ISFSI pad with the HI-STORM 100 Cask System (USNRC Docket 72-1014) provided an assessment is performed by the CoC holder that demonstrates design compatibility.
CoC Body Certified Design Section I. Technology No Section II. Design Features No Appendix A - Inspections, Tests, and Evaluations No Appendix B.
Technical Specifications Section 1 Definitions, Use and Application No Section 2 Approved Contents (Selection Criteria)
A1 No A2 No A3 No Section 3 Limiting Conditions for Operation (LCOs)*
and Surveillance Requirements (SRs)
(Selection Criteria)
L1 No L2 No L3 No Section 4 Administrative Controls No 6 to Holtec Letter 5018083
CoC Condition/Technical Specification Evaluation Form - CoC original Page 21 of 21 Risk Insight**:
Will removing this requirement from the CoC/TS result in A significant increase in the probability or consequences of an accident previously evaluated in the cask FSAR?
No The possibility of a new or different kind of accident being created compared to those previously evaluated in the FSAR?
No A Significant reduction in the margin of safety for ISFSI or cask operation?
No Evaluation Summary Eliminate from CoC - not required as these are regulatory requirements (10 CFR 72.210 through 72.214) that must be met.
6 to Holtec Letter 5018083