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| | number = ML14066A135 | | | number = ML14066A135 |
| | issue date = 02/24/2014 | | | issue date = 02/24/2014 |
| | title = 2014/02/24 NRR E-mail Capture - FW: Draft Request for Additional Information for Use of Neutron Absorbing Inserts in Spent Fuel Pool Storage Racks (TAC Nos. MF2489 and MF2490) | | | title = FW: Draft Request for Additional Information for Use of Neutron Absorbing Inserts in Spent Fuel Pool Storage Racks (TAC Nos. MF2489 and MF2490) |
| | author name = Mozafari B L | | | author name = Mozafari B L |
| | author affiliation = NRC/NRR/DORL | | | author affiliation = NRC/NRR/DORL |
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| | page count = 4 | | | page count = 4 |
| | project = TAC:MF2489 | | | project = TAC:MF2489 |
| | stage = RAI | | | stage = Draft RAI |
| }} | | }} |
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Letter Sequence Draft RAI |
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MONTHYEARRS-13-148, License Amendment Request - Use of Neutron Absorbing Inserts in Units 1 and 2 Spent Fuel Pool Storage Racks2013-07-16016 July 2013 License Amendment Request - Use of Neutron Absorbing Inserts in Units 1 and 2 Spent Fuel Pool Storage Racks Project stage: Request ML13241A5102013-08-29029 August 2013 Request for Supplemental Information Project stage: Other RS-14-039, Additional Information Regarding License Amendment Request Associated with Use of Neutron Absorbing Inserts in Spent Fuel Pool Storage Racks2014-01-22022 January 2014 Additional Information Regarding License Amendment Request Associated with Use of Neutron Absorbing Inserts in Spent Fuel Pool Storage Racks Project stage: Request ML14024A5622014-01-22022 January 2014 Attachment 4 and 5 to RS-14-039, HI-2104790, Rev. 1, Nuclear Group Computer Code Benchmark Calculations, and HI-2125245, Rev. 4, Licensing Report for Quad Cities Criticality Analysis for Inserts-Non Proprietary Version. Project stage: Request ML14066A1362014-02-24024 February 2014 NRR E-mail Capture - Draft RAI from TAC Nos.: MF2489 and MF2490 Review on Neutron Absorbing Inserts Project stage: Draft RAI ML14066A1352014-02-24024 February 2014 NRR E-mail Capture - FW: Draft Request for Additional Information for Use of Neutron Absorbing Inserts in Spent Fuel Pool Storage Racks (TAC Nos. MF2489 and MF2490) Project stage: Draft RAI ML14059A1562014-02-28028 February 2014 NRR E-mail Capture - Request for Additional Information for Use of Neutron Absorbing Inserts in Spent Fuel Pool Storage Racks (TAC Nos. MF2489 and MF2490) Project stage: RAI ML14090A0042014-03-29029 March 2014 NRR E-mail Capture - Request for Extension -- Quad Cities Rack Inserts RAI Responses Project stage: RAI ML14203A6132014-06-23023 June 2014 NRR E-mail Capture - FW: Draft RAI from TAC Nos.: MF2489 and MF2490 Review on Neutron Absorbing Inserts Project stage: Draft RAI ML14203A6752014-07-22022 July 2014 NRR E-mail Capture - Final RAI for Quad Cities Regarding Use of Neutron Absorbing Inserts (TAC Nos.: MF2489 and MF2490) Project stage: RAI RS-14-229, Additional Information Regarding License Amendment Request Associated with Use of Neutron Absorbing Inserts in Spent Fuel Pool Storage Racks2014-08-12012 August 2014 Additional Information Regarding License Amendment Request Associated with Use of Neutron Absorbing Inserts in Spent Fuel Pool Storage Racks Project stage: Request ML14128A5632014-09-0404 September 2014 Request for Withholding Proprietary Information from Public Disclosure Project stage: Other ML14311A8502014-11-10010 November 2014 November 10, 2014, Discussion Topics Regarding Rack Insert Surveillance Program Project stage: Other RS-14-329, Additional Information Regarding License Amendment Request Associated with Use of Neutron Absorbing Inserts in Spent Fuel Pool Storage Racks2014-11-11011 November 2014 Additional Information Regarding License Amendment Request Associated with Use of Neutron Absorbing Inserts in Spent Fuel Pool Storage Racks Project stage: Request ML14353A3152014-12-24024 December 2014 Request for Withholding Proprietary Information from Public Disclosure Project stage: Other ML14346A3062014-12-31031 December 2014 Issuance of Amendments Regarding (TAC Nos. MF2489 and MF2490)(RS-13-148) Project stage: Approval ML15128A4772015-08-14014 August 2015 Summary of November 10 2014 Public Meeting with Exelon Generation Company, LLC on Netco Snap-In Rack Insert License Amendment Request Project stage: Meeting 2014-02-24
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Category:E-Mail
MONTHYEARML24254A2082024-09-10010 September 2024 NRR E-mail Capture - Quad Cities, Unit Nos. 1 and 2 - Alternative to RV-08, Rev 1, SRV Testing Interval - Acceptance of Requested Licensing Action Re Relief Request Associated with Safety Relief Valve Testing Interval ML24250A1062024-09-0606 September 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - Proposed Alternative to Utilize Code Case OMN-32 (L-2024-LLR-0030) ML24249A1362024-09-0404 September 2024 EN 57304 - Westinghouse Electric Company, LLC, Final Report - No Embedded Files. Notification of the Potential Existence of Defects Pursuant to 10 CFR Part 21 ML24197A0482024-07-12012 July 2024 Information Request for the Quad Cities Nuclear Station Biennial Problem Identification and Resolution Inspection ML24135A0182024-05-13013 May 2024 NRR E-mail Capture - Draft Request for Additional Information Quad Cities TSTF-505 Amendment ML24131A0612024-05-10010 May 2024 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Proposed Alternative to Utilize Code Case OMN-32 (L-2024-LLR-0030) ML24086A5182024-04-30030 April 2024 E-mail to Christian Williams Decision on the Exemption Request for Quad Cities ML24086A4782024-04-24024 April 2024 Email to Christian Williams Availability of Environmental Assessment for the Quad Cities Exemption ML24114A1702024-04-15015 April 2024 Request for State Review of the Quad Cities HI-STORM Exemption Request Environmental Assessment ML24102A2422024-04-10010 April 2024 NRR E-mail Capture - Draft Request for Additional Information Quad Cities TSTF-505 and 50.69 Amendments ML24089A0102024-03-29029 March 2024 NRR E-mail Capture - Quad Cities Unit Nos. 1 and 2 - Alternative to Core Spray Pump Testing - Acceptance of Requested Licensing Action Relief Request Associated with the Sixth Inservice Testing Interval ML24066A1532024-03-0606 March 2024 NRR E-mail Capture - Request for Additional Information TSTF-505, R2, Provide Risk-Informed Extended Completion Times, RITSTF (Risk-Informed Technical Specification Task Force) Initiative 4b and 10 CFR 50.69 License Amendments ML23349A0362023-12-14014 December 2023 NRR E-mail Capture - Draft Request for Additional Information Re Quad Cities Emergency Amendment Related to Unit 1 Diesel Generator Inoperability ML23338A1192023-11-21021 November 2023 NRR E-mail Capture - Draft Request for Additional Information Quad Cities Relief Request I5R-26 ML23268A0022023-09-22022 September 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-264-A, Revision 0 ML23264A7992023-09-21021 September 2023 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC Fleet Request License Amendment Request to Adopt TSTF-580, Revision 1 ML23262A7432023-09-19019 September 2023 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 Acceptance of Relief Request I5R-26 ML23186A1412023-07-0505 July 2023 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Requested Licensing Action Amendment to Adopt TSTF-505 ML23186A1482023-07-0505 July 2023 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Requested Licensing Action Amendment to Adopt 10 CFR 50.69 ML23163A2292023-06-12012 June 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-580, Revision 1 ML23118A1652023-04-28028 April 2023 NRR E-mail Capture - Request for Additional Information Quad Cities, Unit 2, Alternative Request I6R-11 ML23083B9572023-03-24024 March 2023 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Requested Licensing Action Amendment to Adopt TSTF-564 ML23055A0392023-02-24024 February 2023 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Amendment to Adopt TSTF-416 ML23052A0772023-02-21021 February 2023 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance Timely Renewal Exemption Request ML22357A0392022-12-23023 December 2022 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of I6R-10 Related to Repair of Penetration N-11B ML22354A2622022-12-20020 December 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Request to Use Certain Provisions of the 2019 Edition of the ASME BPV Code, Section XI ML23004A0262022-12-16016 December 2022 NRR E-mail Capture - Draft Request for Additional Information - Quad Cities Alternative RV-04, Inservice Testing of High Pressure Coolant Injection Drain Pot Solenoid Valves (EPD L-2022-LLR-0070) ML22348A0452022-12-14014 December 2022 NRR E-mail Capture - Draft Request for Additional Information Regarding Quad Cities Alternative I6R-09 ML22301A0902022-10-28028 October 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-301, Revision 2 ML22290A0662022-10-17017 October 2022 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Alternative RV-04 Related to HPCI Drain Pot Solenoid Valve Testing ML23079A0272022-10-0505 October 2022 Licensee Outline Submittal Email (Quad Cities, 2023) ML22256A0112022-09-12012 September 2022 NRR E-mail Capture - Request for Additional Information LaSalle County Station, Units 1 and 2 and Quad Cities Nuclear Power Station, Units 1 and 2 License Amendments Related to Fuel Storage ML22224A0222022-08-12012 August 2022 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Alternative I6R-09 Related to Use of Certain 2013 Edition ASME Code Requirements ML22200A0782022-07-19019 July 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request to Use Honeywell Mururoa V4F1 R Supplied Air Suits ML22206A0352022-07-13013 July 2022 NRR E-mail Capture - Draft RAI Quad Cities Alternative Related to Sblc Nozzle Inspection ML22193A0412022-07-11011 July 2022 NRR E-mail Capture - RAI Quad Cities License Amendment to Expand the Use of Prime Methods ML22187A1832022-07-0606 July 2022 NRR E-mail Capture - Completion of Activities Related to EPID L-2022-LLD-003, Quad Cities Potential NOED ML22182A1992022-07-0101 July 2022 NRR E-mail Capture - RAI Alternative RV-11, Code Case OMN-28 ML22164A8582022-06-13013 June 2022 NRR E-mail Capture - RAI Alternative RV-09, MSSVs ML22164A8562022-06-13013 June 2022 NRR E-mail Capture - RAI Quad Cities Alternative RV-08, Safety Relief Valves ML22164A7852022-06-13013 June 2022 NRR E-mail Capture - RAI Quad Cities Amendment for Spent Fuel Pool Storage Analysis ML22101A0932022-04-11011 April 2022 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Relief I6R-01 Related to SLC Nozzle Inner Radius Inspection ML22077A4122022-03-18018 March 2022 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Alternative RV-06 Related to MSSV Setpoint Testing ML22076A0322022-03-17017 March 2022 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Alternative RV-03 Related to PIV Leak Test Frequency ML22075A0752022-03-16016 March 2022 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Alternative RV-07 Related to MSIV Stroke Testing ML22068A1512022-03-0909 March 2022 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Alternative RV-10 Related to Code Case OMN-28, MOV Testing ML22068A0552022-03-0909 March 2022 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Alternative RV-09 Related to MSSV Testing ML22068A0062022-03-0909 March 2022 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Alternative RV-11 Related to OMN-28, Valve Position Verification ML22067A2172022-03-0808 March 2022 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 - Acceptance of Alternative Related to MSRV Testing ML22041B5362022-02-10010 February 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Request for Additional Information Regarding Fleet License Amendment Request to Adopt TSTF-541 2024-09-06
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1 NRR-PMDAPEm Resource From: Mozafari, Brenda Sent: Monday, February 24, 2014 11:51 AM To: Nicely, Ken M.:(GenCo-Nuc) (ken.nicely@exeloncorp.com)
Cc:Purnell, Blake
Subject:
FW: DRAFT REQUEST FOR ADDITIONAL INFORMATION FOR USE OF NEUTRON ABSORBING INSERTS IN SPEN T FUEL POOL STORAGE RACKS (TAC NOS. MF2489 AND MF2490)
Follow Up Flag:
Follow up Due By: Friday, March 07, 2014 2:30 PM Flag Status:
Flagged Tracking Tracking:RecipientRead Nicely, Ken M.:(GenCo-Nuc) (ken.nicely@exeloncorp.com)Purnell, BlakeRead: 2/24/2014 12:01 PM
Subject:
DRAFT REQUEST FOR ADDITIONAL INFORMATION FOR USE OF NEUTRON ABSORBING INSERTS IN SPENT FUEL POOL STORAGE RACKS (TAC NOS. MF2489 AND MF2490)
By letter dated July 16, 2013, (Agencywide Documents Access and Management Systems Accession Number [ADAMS] ML13199A037), Exelon Generation Company, LLC. (the licensee), submitted a license amendment request to revise the Quad Cities Nuclear Station, Units 1 and 2 Technical Specifications to support use of neutron absorbing inserts in spent fuel pool. (Supplements to the application were provided on September 18, 2013, and January 22, 2014)
The NRC staff has reviewed the information the licensee provided and determined that additional information is needed in order to complete the review. The requested additional information is provided herein.
REFERENCE Letter from David M. Gullott, Exelon Generation Company, LLC (EGC) to Nuclear Regulatory Commission (NRC) Documents Control Desk, "License Amendment Requ est (LAR)- Use of Neutron Absorbing Inserts in Units 1 and 2 Spent Fuel Pool Storage Racks" at Quad Cities Nuclear Power Station (QCNPS), July 16, 2013. (ADAMS Accession No.: ML13199A037)
EMCB-RAI-1 Section 3.4.4 of Evaluation of Proposed Changes (Attachment 1 of the Reference
) indicates that the 41.5 lbf (pound-force) retention force is adequate to maintain the inserts in their required position under the Safe Shutdown Earthquake (SSE) conditions based on seismic accelerations present at the QCNPS location.
Since the QCNPS design basis seismic event has a vertical acceleration less than 1.0g; the licensee has noted that the reduction in retention force due to stress relaxation is acceptable. Please provide the calculation and/or analysis that support the determination that the stress relaxation is acceptable.
EMCB-RAI-2
2Section 3.5 of Evaluation of Proposed Changes of the Reference indicates that the test results from the demonstration program, noted in the LAR, and the corresponding minimum retention force criteria (i.e., 100 pounds minimum), confirm that sufficient horizontal and vertical restraint exist to prevent the inserts from displacing during normal plant operations or a design basis seismic event. The inserts are considered to be integral with the spent fuel pool (SFP) storage racks. These statements in Section 3.5 of Attachment 1 appear to contradict with the information provided in Sect 3.4.4 of Attachment 1 of the Reference, as noted in the RAI above. Please provide an explanation for this apparent contradiction.
EMCB-RAI-3 Section 9.1.2.3 "Safety Evaluation," of the QCNPS Updated Final Safety Analysis Report (UFSAR) states, in part, that, "For the mechanical design of the spent fuel modules, two sets of criteria have been evaluated.
The first established requirements to ensure that adjacent racks will not impact during the safe shutdown earthquake (SSE), assuming the lower bound value of 3the pool surface friction coefficient. This criterion required that a safety factor against tilting be 1.5 for the operating basis earthquake (OBE) and 1.1 for the SSE. The second set of criteria established requirements to ensure that loading combinations and stress allowables are in accordance with Section III, Subsection NF, of the American Society of Mechanical Engineering (ASME) 1980 Edition." Provide information confirming that all applicable design basis requirements applicable to the existing QCNPS SFP racks, as stipulated by the provisions of Subsection NF of the ASME Code, will remain satisfied following installation of the neutron absorbing inserts. Specifically, confirm that normal and abnormal operating condition loads, including deadweight, thermal and seismic loads, are bounded by those used in the existing analysis of record such that the resulting margins of safety are positive and will continue to satisfy the requirements of the ASME Code.
Let me know whether a call is needed. Unless I hear otherwise, I will expect these questions to be responded to by March 2 4 , 2014. Brenda L. Mozafari Senior Project Manager, NRR/DORL U.S. Nuclear Regulatory Commission Dresden 2/3 and QuadCities 1/2 301-415-2020 email: brenda.mozafari@nrc.gov
Hearing Identifier: NRR_PMDA Email Number: 1149 Mail Envelope Properties (Brenda.Mozafari@nrc.gov20140224115100)
Subject:
FW: DRAFT REQUEST FOR ADDITIONAL INFORMATION FOR USE OF NEUTRON ABSORBING INSERTS IN SPENT FUEL POOL STORAGE RACKS (TAC NOS. MF2489 AND MF2490)
Sent Date: 2/24/2014 11:51:16 AM Received Date: 2/24/2014 11:51:00 AM From: Mozafari, Brenda Created By: Brenda.Mozafari@nrc.gov
Recipients: "Purnell, Blake" <Blake.Purnell@nrc.gov> Tracking Status:: Response: Read : 2/24/2014 12:01:00 PM "Nicely, Ken M.:(GenCo-Nuc) (ken.nicely@exeloncorp.com)" <ken.nicely@exeloncorp.com> Tracking Status: None
Post Office: Files Size Date & Time MESSAGE 4395 2/24/2014 11:51:00 AM Options Priority: Standard Return Notification: No Reply Requested: Yes Sensitivity: Normal Expiration Date: Recipients Received: Follow up By 3/7/2014 2:30:00 PM