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| | number = ML15068A421 | | | number = ML15068A421 |
| | issue date = 04/16/2015 | | | issue date = 04/16/2015 |
| | title = Clinton, Power Station, Unit 1 - Request for Additional Information Regarding Relief Request 13R-11 (TAC No. MF5334) | | | title = Request for Additional Information Regarding Relief Request 13R-11 |
| | author name = Purnell B A | | | author name = Purnell B |
| | author affiliation = NRC/NRR/DORL/LPLIII-2 | | | author affiliation = NRC/NRR/DORL/LPLIII-2 |
| | addressee name = Hanson B C | | | addressee name = Hanson B |
| | addressee affiliation = Exelon Generation Co, LLC, Exelon Nuclear | | | addressee affiliation = Exelon Generation Co, LLC, Exelon Nuclear |
| | docket = 05000461 | | | docket = 05000461 |
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| =Text= | | =Text= |
| {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Mr. Bryan C. Hanson Senior Vice President Exelon Generation Company, LLC President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 April 16, 2015 SUBJECT: CLINTON POWER STATION, UNIT 1 -REQUEST FOR ADDITIONAL INFORMATION REGARDING RELIEF REQUEST 13R-11 (TAC NO. MF5334) Dear Mr. Hanson: By application dated December 1, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 14335A539), Exelon Generation Company, LLC (the licensee) submitted a request in accordance with Paragraph 50.55a(a)(3)(i) of Title 10 of the Code of Federal Regulations for a proposed alternative to the requirements of the American Society of Mechanical Engineers, "Code for Operation and Maintenance of Nuclear Power Plants," Boiler and Pressure Vessel Code, Section XI, 2004 Edition and no addenda for Clinton Power Station (CPS), Unit 1. The proposed alternative would permit the licensee to perform inservice testing of Code Class 1, 2, and 3 snubbers every 2 years or every other refueling outage in lieu of the requirement to perform testing every refueling outage. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. The NRG staff has reviewed the relief request and determined that it needs additional information to complete its review. A response to the enclosed request for additional information should be provided by within 45 days from the date of this letter. The information requested was discussed during a public meeting with your staff on February 23, 2015 (ADAMS Accession No. ML 15072A425). | | {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 April 16, 2015 Mr. Bryan C. Hanson Senior Vice President Exelon Generation Company, LLC President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 |
| B. Hanson -2 -Should you have any questions, please contact me at 301-415-1380 or by email at Blake.Purnell@nrc.gov. Docket No. 50-461 Enclosure: Request for Additional Information cc w/encl: Listserv Sincerely, Blake Purnell, Project Manager Plant Licensing 111-2 and Planning and Analysis Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation REQUEST FOR ADDITIONAL INFORMATION RELIEF REQUEST 13R-11 CLINTON POWER STATION, UNIT 1 TAC NO. MF5334 By application dated December 1, 2014 (Agencywide Documents Access and Management System Accession No. ML 14335A539), Exelon Generation Company, LLC (the licensee) submitted a request in accordance with Paragraph 50.55a(a)(3)(i) of Title 10 of the Code of Federal Regulations for a proposed alternative to the requirements of the American Society of Mechanical Engineers (ASME), Code for Operation and Maintenance of Nuclear Power Plants (OM Code), and ASME Boiler and Pressure Vessel (B&PV) Code, Section XI, 2004 Edition and no addenda for Clinton Power Station (CPS), Unit 1. The proposed alternative would permit the licensee to perform inservice testing of Code Class 1, 2, and 3 snubbers every 2 years or every other refueling outage in lieu of the requirement to perform testing every refueling outage. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. The NRC staff has reviewed the relief request and determined that it needs additional information to complete its review. Request for Additional Information 1) The submitted relief request is for the third 10-year inservice inspection (ISi) interval at CPS. Provide the start and end dates of the third 10-year ISi interval. 2) The relief request states that the proposed alternative to the snubber testing requirements in ASME B&PV Code, Section XI, and Section ISTD-5200 of the ASME OM Code is to test every 2 years or every other refueling outage. This implies that CPS has a choice of testing frequencies, such that if the refueling outage schedules change the interval between snubber tests may exceed 2 years. Provide justification for the proposed testing of every other refueling outage given that CPS is not limited to a 12-month refueling cycle. Enclosure B. Hanson -2 -Should you have any questions, please contact me at 301-415-1380 or by email at Blake.Purnell@nrc.gov. Docket No. 50-461 Enclosure: Request for Additional Information cc w/encl: Listserv DISTRIBUTION: Sincerely, IRA! Blake Purnell, Project Manager Plant Licensing 111-2 and Planning and Analysis Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation PUBLIC RidsNrrPMClinton RidsNrrDeEpnb LPL3-2 R/F RidsAcrsAcnwMailCenter RidsNrrDorllpl3-2 RidsRgn3MailCenter RidsNrrLASRohrer BPurnell GBedi, NRR ADAMS Accession No.:ML 15068A421 OFFICE LPL3-2/PM LPL3-2/LA EPNB/BC LPL3-2/BC LPL3-2/PM NAME BPurnell SRohrer DAiiey TTate BPurnell DATE 4/15/15 3/25/15 3/30/15 4/14/15 4/16/15 OFFICIAL RECORD COPY | | |
| }} | | ==SUBJECT:== |
| | CLINTON POWER STATION, UNIT 1 - REQUEST FOR ADDITIONAL INFORMATION REGARDING RELIEF REQUEST 13R-11 (TAC NO. MF5334) |
| | |
| | ==Dear Mr. Hanson:== |
| | |
| | By application dated December 1, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14335A539), Exelon Generation Company, LLC (the licensee) submitted a request in accordance with Paragraph 50.55a(a)(3)(i) of Title 10 of the Code of Federal Regulations for a proposed alternative to the requirements of the American Society of Mechanical Engineers, "Code for Operation and Maintenance of Nuclear Power Plants," Boiler and Pressure Vessel Code, Section XI, 2004 Edition and no addenda for Clinton Power Station (CPS), Unit 1. The proposed alternative would permit the licensee to perform inservice testing of Code Class 1, 2, and 3 snubbers every 2 years or every other refueling outage in lieu of the requirement to perform testing every refueling outage. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. |
| | The NRG staff has reviewed the relief request and determined that it needs additional information to complete its review. A response to the enclosed request for additional information should be provided by within 45 days from the date of this letter. The information requested was discussed during a public meeting with your staff on February 23, 2015 (ADAMS Accession No. ML15072A425). |
| | |
| | B. Hanson Should you have any questions, please contact me at 301-415-1380 or by email at Blake.Purnell@nrc.gov. |
| | Sincerely, 4/i~ |
| | Blake Purnell, Project Manager Plant Licensing 111-2 and Planning and Analysis Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-461 |
| | |
| | ==Enclosure:== |
| | |
| | Request for Additional Information cc w/encl: Listserv |
| | |
| | REQUEST FOR ADDITIONAL INFORMATION RELIEF REQUEST 13R-11 CLINTON POWER STATION, UNIT 1 TAC NO. MF5334 By application dated December 1, 2014 (Agencywide Documents Access and Management System Accession No. ML14335A539), Exelon Generation Company, LLC (the licensee) submitted a request in accordance with Paragraph 50.55a(a)(3)(i) of Title 10 of the Code of Federal Regulations for a proposed alternative to the requirements of the American Society of Mechanical Engineers (ASME), Code for Operation and Maintenance of Nuclear Power Plants (OM Code), and ASME Boiler and Pressure Vessel (B&PV) Code, Section XI, 2004 Edition and no addenda for Clinton Power Station (CPS), Unit 1. The proposed alternative would permit the licensee to perform inservice testing of Code Class 1, 2, and 3 snubbers every 2 years or every other refueling outage in lieu of the requirement to perform testing every refueling outage. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. |
| | The NRC staff has reviewed the relief request and determined that it needs additional information to complete its review. |
| | Request for Additional Information |
| | : 1) The submitted relief request is for the third 10-year inservice inspection (ISi) interval at CPS. Provide the start and end dates of the third 10-year ISi interval. |
| | : 2) The relief request states that the proposed alternative to the snubber testing requirements in ASME B&PV Code, Section XI, and Section ISTD-5200 of the ASME OM Code is to test every 2 years or every other refueling outage. This implies that CPS has a choice of testing frequencies, such that if the refueling outage schedules change the interval between snubber tests may exceed 2 years. Provide justification for the proposed testing of every other refueling outage given that CPS is not limited to a 12-month refueling cycle. |
| | Enclosure |
| | |
| | ML15068A421 OFFICE LPL3-2/PM LPL3-2/LA EPNB/BC LPL3-2/BC LPL3-2/PM NAME BPurnell SRohrer DAiiey TTate BPurnell DATE 4/15/15 3/25/15 3/30/15 4/14/15 4/16/15}} |
Letter Sequence RAI |
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MONTHYEARML14350B3722014-12-16016 December 2014
NRR E-mail Capture - Clinton Power Station, Unit 1 - Proposed Alternative Testing Requirements for Code Class 1, 2, and 3 Snubbers
Project stage: Other
ML15072A4242015-04-16016 April 2015
February 23, 2015, Summary of Meeting with Exelon Generation Company, LLC Regarding Relief Request for Clinton Power Station, Unit 1 (TAC Nos. MF5334, MF5344, and MF5345
Project stage: Meeting
ML15068A4212015-04-16016 April 2015
Request for Additional Information Regarding Relief Request 13R-11
Project stage: RAI
2014-12-16
[Table View] |
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Category:Letter
MONTHYEARIR 05000461/20230042024-02-0202 February 2024
Integrated Inspection Report 05000461/2023004
ML23361A1572024-01-24024 January 2024
Audit Plan in Support of Review of License Amendment Request Regarding Revision of Technical Specifications Related to Reactor Water Cleanup Isolation
ML24004A0792024-01-18018 January 2024
Exemption from Select Requirements of 10 CFR Part 73 (EPID L-2023-LLE-0041 (Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting))
IR 05000461/20234022023-12-27027 December 2023
Security Baseline Inspection Report 05000461/2023402
ML23305A1402023-12-13013 December 2023
Units 1 & 2; Nine Mile Point, Unit 2; Peach Bottom, Units 2 & 3; and Quad Cities, Units 1 and 2 - Issuance of Amendments to Adopt Traveler TSTF-580
IR 05000461/20235012023-12-0505 December 2023
Emergency Preparedness Biennial Exercise Inspection Report 05000461/2023501
ML23284A2512023-11-22022 November 2023
Amendment No. 250 to Adopt TSTF-332
ML23317A1192023-11-10010 November 2023
Constellation Energy Generation, LLC - 2023 Annual Report - Guarantees of Payment of Deferred Premiums
IR 05000461/20230032023-11-0808 November 2023
Integrated Inspection Report 05000461/2023003
ML22300A2212023-11-0202 November 2023
Preliminary Decommissioning Cost Estimate and Fuel Management Plan
RS-23-097, Constellation Energy Generation, LLC, Advisement of Leadership Changes and Submittal of Updated Standard Practice Procedures Plans2023-10-12012 October 2023
Constellation Energy Generation, LLC, Advisement of Leadership Changes and Submittal of Updated Standard Practice Procedures Plans
IR 05000461/20233012023-09-12012 September 2023
NRC Initial License Examination Report 05000461/2023301
RS-23-090, Annual Report of Emergency Core Cooling System Evaluation Model Changes and Errors for Clinton Power Station2023-09-0707 September 2023
Annual Report of Emergency Core Cooling System Evaluation Model Changes and Errors for Clinton Power Station
RS-23-080, Constellation Energy Generation, LLC, Application to Revise Technical Specifications to Adopt TSTF-264-A, Revision 0, 3.3.9 and 3.3.10 - Delete Flux Monitors Specific Overlap Requirement SRs2023-08-30030 August 2023
Constellation Energy Generation, LLC, Application to Revise Technical Specifications to Adopt TSTF-264-A, Revision 0, 3.3.9 and 3.3.10 - Delete Flux Monitors Specific Overlap Requirement SRs
IR 05000461/20234202023-08-29029 August 2023
Security Baseline Inspection Report 05000461/2023420
RS-23-081, Request for License Amendment to Revise Technical Specifications Related to Reactor Water Cleanup Isolation Instrumentation2023-08-21021 August 2023
Request for License Amendment to Revise Technical Specifications Related to Reactor Water Cleanup Isolation Instrumentation
IR 05000461/20230022023-08-0404 August 2023
Integrated Inspection Report 05000461/2023002
RS-23-085, Supplemental Information Related to Request for Partial Site Release2023-08-0303 August 2023
Supplemental Information Related to Request for Partial Site Release
ML23209A8102023-07-28028 July 2023
05000461; Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and Request for Information
ML23198A0152023-07-27027 July 2023
License Renewal Application Public Meeting Summary of Pre-Submittal Meeting
ML23202A0992023-07-24024 July 2023
Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000461/2023004
ML23200A2592023-07-24024 July 2023
June 27, 2023, Clinton Power Station License Renewal Environmental Pre-application Public Meeting-Meeting Summary
IR 05000461/20234012023-07-19019 July 2023
Cyber Security Inspection Report 05000461/2023401
ML23194A1662023-07-19019 July 2023
Supplemental Information Needed for Acceptance of Requested Licensing Action Request for Partial Site Release
ML23191A8772023-07-11011 July 2023
Operator Licensing Examination Approval Clinton Power Station July 2023
ML23178A2422023-06-28028 June 2023
Reassignment of the U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch III
RS-23-077, Response to NRC Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations2023-06-16016 June 2023
Response to NRC Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations
RS-23-073, Request for Partial Site Release2023-06-0707 June 2023
Request for Partial Site Release
IR 05000461/20230102023-05-26026 May 2023
Triennial Fire Protection Inspection Report 05000461/2023010
RS-23-042, Application to Revise Technical Specifications to Adopt TSTF-580, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling2023-05-25025 May 2023
Application to Revise Technical Specifications to Adopt TSTF-580, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling
ML23143A3182023-05-23023 May 2023
Information Meeting (Open House) with a Question and Answer Session to Discuss NRC 2022 End-Of-Cycle Plant Performance Assessment of Clinton Power Station, Unit 1
IR 05000461/20230012023-05-0404 May 2023
Integrated Inspection Report 05000461/2023001
ML23118A3472023-05-0101 May 2023
County, 1 & 2; Nine Mile Point, 2; and Quad Cities, 1 & 2 - Correction of Amendment No. 193 Adoption of TSTF-306, Revision 2, Add Action to LCO 3.3.6.1 to Give Option to Isolate the Penetration EPID L-2022-LLA-0143
ML23114A2522023-04-28028 April 2023
Request to Use a Provision of a Later Edition of the ASME Boiler & Pressure Vessel Code, Section XI
ML23081A0382023-04-25025 April 2023
County, 1 & 2; Nine Mile Point, 2; and Quad Cities, 1 & 2 - Issuance of Amendments to Adopt TSTF-306, Rev. 2, Add Action to LCO 3.3.6.1 to Give Option to Isolate the Penetration
ML23110A3202023-04-21021 April 2023
Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection
RS-23-049, Constellation Energy Generation, LLC, Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations2023-03-23023 March 2023
Constellation Energy Generation, LLC, Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations
ML23061A1632023-03-0303 March 2023
Reassignment of the U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch 3
IR 05000461/20220062023-03-0101 March 2023
Annual Assessment Letter for Clinton Power Station, Unit 1 (Report 05000461/2022006)
RS-23-039, Request for License Amendment to Revise Technical Specifications Section 3.8.3, Diesel Fuel Oil, Lube Oil, and Starting Air2023-03-0101 March 2023
Request for License Amendment to Revise Technical Specifications Section 3.8.3, Diesel Fuel Oil, Lube Oil, and Starting Air
ML23031A2972023-03-0101 March 2023
Issuance of Amendment No. 248 Adoption of TSTF-269, Revision 2
RS-23-045, Constellation Energy Generation, LLC Submittal of Fitness for Duty Performance Data Reports for 2022 Per 10 CFR 26.717(c) & 10 CFR 26.2032023-02-28028 February 2023
Constellation Energy Generation, LLC Submittal of Fitness for Duty Performance Data Reports for 2022 Per 10 CFR 26.717(c) & 10 CFR 26.203
ML23039A1852023-02-10010 February 2023
Integrated Inspection Report 05000461/2022004 07201046/2022001
RS-23-003, Constellation Energy Generation, LLC, Summary of Changes to Quality Assurance Topical Report, NO-AA-10, and Decommissioning Quality Assurance Program, NO-DC-102023-01-31031 January 2023
Constellation Energy Generation, LLC, Summary of Changes to Quality Assurance Topical Report, NO-AA-10, and Decommissioning Quality Assurance Program, NO-DC-10
IR 05000461/20220112023-01-27027 January 2023
Biennial Problem Identification and Resolution Inspection Report 05000461/2022011
RS-23-002, Application to Adopt TSTF-332, ECCS Response Time Testing2023-01-13013 January 2023
Application to Adopt TSTF-332, ECCS Response Time Testing
ML23005A0682023-01-0505 January 2023
Notification of NRC Fire Protection Team Inspection Request for Information: Inspection Report 05000461/2023010
ML22341A6042022-12-0808 December 2022
Confirmation of Initial License Examination
IR 05000461/20224022022-12-0606 December 2022
Security Baseline Inspection Report 05000461/2022402
RS-22-126, Constellation Energy Generation, LLC - Request to Use Provisions of a Later Edition of the ASME Boiler and Pressure Vessel Code, Section XI2022-11-30030 November 2022
Constellation Energy Generation, LLC - Request to Use Provisions of a Later Edition of the ASME Boiler and Pressure Vessel Code, Section XI
2024-02-02
[Table view]
Category:Request for Additional Information (RAI)
MONTHYEARML23363A0302023-12-29029 December 2023
NRR E-mail Capture - Preliminary RAIs for Clinton Partial Site Release
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
ML23230B1682023-08-18018 August 2023
NRR E-mail Capture - Clinton Power Station, Unit 1, Preliminary Requests for Additional Information (Rais) Related to the Amendment Request to Revise Diesel Generator Starting Air Technical Specifications
ML23202A0992023-07-24024 July 2023
Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000461/2023004
ML23110A3202023-04-21021 April 2023
Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection
ML22312A5362022-11-0808 November 2022
Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000461/2023401
ML22255A1402022-09-12012 September 2022
Information Request to Support Upcoming Problem Identification and Resolution (Pi&R) Inspection at Clinton Power Station
ML22173A0382022-06-21021 June 2022
NRR E-mail Capture - Request for Additional Information (RAI) Regarding Clinton License Amendment Request for Secondary Containment Design Basis (L-2022-LLA-0055)
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
ML22020A0642022-01-13013 January 2022
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative for Repair of Water Level Instrumentation Partial Penetration Nozzles
ML21256A1902021-09-10010 September 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application
ML21225A0392021-08-13013 August 2021
NRR E-mail Capture - Preliminary Request for Additional Information Regarding Clinton Request to Revise Degraded Voltage Instrumentation Setpoints
ML21204A0152021-07-23023 July 2021
Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000461/2021004
ML21190A0192021-07-0808 July 2021
NRR E-mail Capture - Exelon Fleet - Request for Additional Information Regarding Adoption of TSTF-582 and TSTF-583-T
ML21144A2132021-05-24024 May 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application
ML21117A0342021-05-0505 May 2021
Request for Additional Information Regarding Proposed Alternative to Use ASME Code Case N-893
ML21071A1882021-03-12012 March 2021
Information Request to Support Upcoming Problem Identification and Resolution Inspection at Clinton Power Station
ML21062A0652021-03-0101 March 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative to Documentation Requirements for Pressure Retaining Bolting
ML21057A1012021-02-26026 February 2021
NRR E-mail Capture - Clarification of Second Round RAI - Clinton TSTF-505 License Amendment Request
ML21049A2572021-02-18018 February 2021
Request for Additional Information Byron/Dresden Proposed Changes to Site Emergency Plans to Support Post-Shutdown and Permanently Defueled Conditions (EPID-2020-LLA-0240 & EPID-2020-LLA-0237)
ML21057A1002021-02-17017 February 2021
NRR E-mail Capture - Second Round RAI - Clinton TSTF-505 License Amendment Request
ML21026A0582021-01-25025 January 2021
Notification of NRC Supplemental Inspection (95001) and Request for Information
ML20315A0642020-11-0909 November 2020
Notification of NRC Design Bases Assurance Inspection (Programs) and Initial Request for Information: Inspection Report 05000461/2021010
ML20307A6592020-10-27027 October 2020
NRR E-mail Capture - Request for Additional Information Regarding TSTF-505 and 50.69 Applications
ML20153A7042020-06-0101 June 2020
NRR E-mail Capture - Preliminary RAI for Fleet Request to Use Alternative OMN-26
ML20135H1972020-05-14014 May 2020
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Request to Extend Safety Relief Valve Test Interval
ML20128J8642020-05-0707 May 2020
NRR E-mail Capture - Preliminary RAIs for Clinton Load Tap Changer License Amendment Request
ML20105A1082020-04-14014 April 2020
NRR E-mail Capture - Request for Additional Information Regarding Clinton Relief Request I4R-01
ML20091F7892020-03-25025 March 2020
NRR E-mail Capture - Request for Additional Information Regarding Clinton Relief Request I4R-05
ML19330E1772019-11-25025 November 2019
RAI Dresden/Clinton Request for LAR to Modify TSs Following Adoption of TSTF-542
ML19275H1362019-10-0202 October 2019
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Request to Use ASME Code Case N-879
ML19179A0612019-07-19019 July 2019
Three Mile Point 1 - Supplemental Information Needed to Proposed Alternative to Use ASME Code Case N-879
ML18225A2882018-08-13013 August 2018
Ltr. 08/13/18 Clinton Power Station - Request for Information for an NRC Design Bases Assurance Inspection (Program): Implementation of the Environmental Qualification Program Inspection Report 05000461/2018011 (DRS-B.Jose)
ML18214A4452018-08-0202 August 2018
NRR E-mail Capture - Preliminary Request for Additional Information Regarding Clinton Revised Alternate Source Term
ML18193A9732018-07-12012 July 2018
NRR E-mail Capture - Preliminary Request for Additional Information Regarding Clinton Revised Alternate Source Term
ML18088A5662018-03-28028 March 2018
Information Request for an NRC Triennial 10 CFR 50.59 (Evaluation of Changes, Tests and Experiments) Baseline Inspection 05000461/2018010
ML17285B1962017-10-27027 October 2017
Request for Additional Information Regarding Generic Letter 2016-01, Monitoring of Neutron-Absorbing Materials in Spent Fuel Pools.
ML17276B7632017-10-0303 October 2017
NRR E-mail Capture - Clinton Power Station - Request for Additional Information Regarding License Amendment Request Related to Reactor Pressure Vessel Water Inventory Control
ML17159A6292017-06-0707 June 2017
Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection (Mxg)
ML17125A3212017-05-0202 May 2017
NRR E-mail Capture - Clinton Power Station, Unit 1 - Request for Additional Information Regarding the Permanent Extension of Leak Rate Testing
ML16356A0422016-12-20020 December 2016
Notification of NRC Triennial Fire Protection Baseline Inspection and Request for Information 05000461/2017008 (Dxs)
ML16130A6642016-05-11011 May 2016
Request for Additional Information Related to Incorporation of Revised Alternative Source Term (CAC No. MF7336)(RS-16-019)
ML16071A2062016-03-15015 March 2016
RAI Regarding License Amendment Request to Revise the Reactor Steam Dome Pressure in Technical Specification 2.1.1, Reactor Core Sls(Cac Nos. MF6640 & MF6644)
ML15106A9282015-04-24024 April 2015
Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.2, :Primary Coolant Sources Outside Containment
ML15068A4212015-04-16016 April 2015
Request for Additional Information Regarding Relief Request 13R-11
ML15062A6482015-03-24024 March 2015
Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.2, Primary Coolant Sources Outside Containment
ML15055A5942015-02-24024 February 2015
ISI RFI
ML13304B4182013-11-0101 November 2013
Request for Additional Information Associated with Near-Term Task Force Recommendation 2.3, Seismic Walkdowns
ML13196A3382013-07-15015 July 2013
2013 Decommissioning Fund Report RAI
ML13134A0932013-06-0707 June 2013
Request for Additional Information Regarding Overall Integrated Plan for Reliable Spent Fuel Pool Instrumentation
2023-09-21
[Table view] |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 April 16, 2015 Mr. Bryan C. Hanson Senior Vice President Exelon Generation Company, LLC President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
CLINTON POWER STATION, UNIT 1 - REQUEST FOR ADDITIONAL INFORMATION REGARDING RELIEF REQUEST 13R-11 (TAC NO. MF5334)
Dear Mr. Hanson:
By application dated December 1, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14335A539), Exelon Generation Company, LLC (the licensee) submitted a request in accordance with Paragraph 50.55a(a)(3)(i) of Title 10 of the Code of Federal Regulations for a proposed alternative to the requirements of the American Society of Mechanical Engineers, "Code for Operation and Maintenance of Nuclear Power Plants," Boiler and Pressure Vessel Code,Section XI, 2004 Edition and no addenda for Clinton Power Station (CPS), Unit 1. The proposed alternative would permit the licensee to perform inservice testing of Code Class 1, 2, and 3 snubbers every 2 years or every other refueling outage in lieu of the requirement to perform testing every refueling outage. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles.
The NRG staff has reviewed the relief request and determined that it needs additional information to complete its review. A response to the enclosed request for additional information should be provided by within 45 days from the date of this letter. The information requested was discussed during a public meeting with your staff on February 23, 2015 (ADAMS Accession No. ML15072A425).
B. Hanson Should you have any questions, please contact me at 301-415-1380 or by email at Blake.Purnell@nrc.gov.
Sincerely, 4/i~
Blake Purnell, Project Manager Plant Licensing 111-2 and Planning and Analysis Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-461
Enclosure:
Request for Additional Information cc w/encl: Listserv
REQUEST FOR ADDITIONAL INFORMATION RELIEF REQUEST 13R-11 CLINTON POWER STATION, UNIT 1 TAC NO. MF5334 By application dated December 1, 2014 (Agencywide Documents Access and Management System Accession No. ML14335A539), Exelon Generation Company, LLC (the licensee) submitted a request in accordance with Paragraph 50.55a(a)(3)(i) of Title 10 of the Code of Federal Regulations for a proposed alternative to the requirements of the American Society of Mechanical Engineers (ASME), Code for Operation and Maintenance of Nuclear Power Plants (OM Code), and ASME Boiler and Pressure Vessel (B&PV) Code,Section XI, 2004 Edition and no addenda for Clinton Power Station (CPS), Unit 1. The proposed alternative would permit the licensee to perform inservice testing of Code Class 1, 2, and 3 snubbers every 2 years or every other refueling outage in lieu of the requirement to perform testing every refueling outage. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles.
The NRC staff has reviewed the relief request and determined that it needs additional information to complete its review.
Request for Additional Information
- 1) The submitted relief request is for the third 10-year inservice inspection (ISi) interval at CPS. Provide the start and end dates of the third 10-year ISi interval.
- 2) The relief request states that the proposed alternative to the snubber testing requirements in ASME B&PV Code,Section XI, and Section ISTD-5200 of the ASME OM Code is to test every 2 years or every other refueling outage. This implies that CPS has a choice of testing frequencies, such that if the refueling outage schedules change the interval between snubber tests may exceed 2 years. Provide justification for the proposed testing of every other refueling outage given that CPS is not limited to a 12-month refueling cycle.
Enclosure
ML15068A421 OFFICE LPL3-2/PM LPL3-2/LA EPNB/BC LPL3-2/BC LPL3-2/PM NAME BPurnell SRohrer DAiiey TTate BPurnell DATE 4/15/15 3/25/15 3/30/15 4/14/15 4/16/15
