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MONTHYEARML12251A1222012-09-0707 September 2012 Acceptance Review E-mail - Relief Request C-2 for the Reactor Pressure Vessel Leak-Off Flange, Third 10-Year Inservice Inspection Interval Project stage: Acceptance Review ML12345A1882012-12-10010 December 2012 Request for Additional Information E-mail - Relief Request C-2 for the Reactor Pressure Vessel Leak-Off Flange, Third 10-Year Inservice Inspection Interval Project stage: RAI ML13025A2612013-01-0909 January 2013 Enclosure to TXX-13003 Drawings for Response to RAI Question 2 Project stage: Response to RAI CP-201300002, Response to Request for Additional Information for Unit 1 Relief Request No. C-22013-01-0909 January 2013 Response to Request for Additional Information for Unit 1 Relief Request No. C-2 Project stage: Response to RAI ML13046A3852013-03-19019 March 2013 Relief Request C-2 for the Reactor Pressure Vessel Flange Leak-Off Piping, Third 10-Year Inservice Inspection Interval Project stage: Other CP-201301199, Relief Request No. C-3 for the Unit 2 Reactor Pressure Vessel leak-off Flange (Second ISI Interval Start Date: August 3, 2004; Second ISI Interval End Date: August 2, 20142013-10-31031 October 2013 Relief Request No. C-3 for the Unit 2 Reactor Pressure Vessel leak-off Flange (Second ISI Interval Start Date: August 3, 2004; Second ISI Interval End Date: August 2, 2014 Project stage: Request ML13350A6302013-12-16016 December 2013 NRR E-mail Capture - Acceptance Review for Relief Request C-3 for Comanche Peak Unit 2, - TAC No. MF2997 Project stage: Acceptance Review ML14007A0002014-01-0303 January 2014 NRR E-mail Capture - Request for Additional Information (RAI) - Relief Request (RR) C-3 - TAC No. MF2997 Project stage: RAI CP-201400070, Response to Request for Additional Information for Relief Request No. C-3 for Unit 2 Reactor Pressure Vessel Leak-off Flange (Second ISI Interval Start Date: August 3, 2004; Second ISI Interval End Date August 2, 2014)2014-01-23023 January 2014 Response to Request for Additional Information for Relief Request No. C-3 for Unit 2 Reactor Pressure Vessel Leak-off Flange (Second ISI Interval Start Date: August 3, 2004; Second ISI Interval End Date August 2, 2014) Project stage: Response to RAI ML14030A4662014-01-30030 January 2014 NRR E-mail Capture - Follow-up Request for Additional Information for Relief Request C-3 - TAC MF2997 Project stage: RAI CP-201400144, Clarification to Response to Request for Additional Information for Relief Request No. C-3 for Unit 2 Reactor Pressure Vessel Leak-Off Flange (Second ISI Interval Start Date: August 3, 2004; Second ISI Interval End.2014-02-11011 February 2014 Clarification to Response to Request for Additional Information for Relief Request No. C-3 for Unit 2 Reactor Pressure Vessel Leak-Off Flange (Second ISI Interval Start Date: August 3, 2004; Second ISI Interval End. Project stage: Supplement ML14084A2912014-04-0404 April 2014 Relief Request No. C-3 for Reactor Pressure Vessel Leak-Off Flange for the Second 10-Year Inservice Inspection Interval Project stage: Other CP-201500157, Relief Request No. 2C3-1 for the Reactor Pressure Vessel Leak-Off Flange (Third ISI Interval Start Date: August 3, 2014; Third ISI Interval End Date: August 2, 2023)2015-02-24024 February 2015 Relief Request No. 2C3-1 for the Reactor Pressure Vessel Leak-Off Flange (Third ISI Interval Start Date: August 3, 2014; Third ISI Interval End Date: August 2, 2023) Project stage: Request 2013-03-19
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Category:E-Mail
MONTHYEARML24262A1302024-09-18018 September 2024 NRR E-mail Capture - Acceptance Review Comanche Peak Multiple Relief Requests for Unit 2 Third Inservice Inspection Interval Due to Impracticality (EPID L-2024-LLR-0053 Through -0058) ML24205A2162024-07-23023 July 2024 September 2024 Emergency Preparedness Program Inspection - Request for Information ML24204A0022024-07-18018 July 2024 NRR E-mail Capture - Request for Additional Information Comanche Peak Request for Exemption from 10 CFR 50.71(e)(4) Final Safety Analysis Update Schedule ML24095A1532024-04-0404 April 2024 NRR E-mail Capture - Acceptance Review Comanche Peak Request to Revise Technical Specifications to Adopt TSTF-591, Revise Risk Informed Completion Time (RICT) Program (EPID 2024-LLA-0023) ML24095A2382024-04-0404 April 2024 NRR E-mail Capture - Acceptance Review Comanche Peak Request to Revise Technical Specifications to Adopt TSTF-589, Eliminate Automatic Diesel Generator Start During Shutdown ML24052A0122024-02-16016 February 2024 NRR E-mail Capture - Comanche Peak - Draft Request for Additional Information - Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications ML24033A2642024-02-0202 February 2024 NRR E-mail Capture - Comanche Peak - Revised Draft Request for Additional Information - License Amendment Request to Extend the Allowed Outage Time for an Inoperable Emergency Diesel Generator ML24036A0122024-02-0202 February 2024 NRR E-mail Capture - Comanche Peak - Request for Additional Information - License Amendment Request to Extend the Allowed Outage Time for an Inoperable Emergency Diesel Generator ML24025A0172024-01-22022 January 2024 NRC Request for Concurrence with Endangered Species Act Determinations for Comanche Peak License Renewal, Issuance of Draft Supplemental Environmental Impact Statement, and Opportunity for Public Comment ML24019A0742024-01-19019 January 2024 NRR E-mail Capture - Comanche Peak - Draft Request for Additional Information - License Amendment Request to Extend the Allowed Outage Time for an Inoperable Emergency Diesel Generator ML24008A2492023-12-18018 December 2023 Texas SHPO Response for Comanche Peak Deis Review and Comment ML23311A2202023-11-20020 November 2023 NRC to Fws, NRC Request for Concurrence with Endangered Species Act Determinations for Comanche Peak License Renewal, Issuance of Draft Supplemental Environmental Impact Statement, and Opportunity for Public Comment (Consultation Code: 2023 ML23255A2882023-09-12012 September 2023 NRR E-mail Capture - Comanche Peak - Acceptance of Request for Exemption from 10 CFR 50.71(e)(4) Final Safety Analysis Update Schedule ML23256A1492023-09-11011 September 2023 Email from Mark Yoo (NRC) to Ken Peters (Vistra) - Comanche Peak LRA - Request for Additional Information - Set 4 ML23226A0072023-08-11011 August 2023 NRR E-mail Capture - Comanche Peak 1 and 2 Audit Plan - License Amendment Request to Adopt 10 CFR 50.69, Risk-Informed Categorization and Treatment of Structures, Systems and Components for Nuclear Power Reactors ML23188A0442023-07-0707 July 2023 Email from Mark Yoo (NRC) to Ken Peters (Vistra) - Comanche Peak LRA - Request for Additional Information - Set 3 ML23181A0722023-06-29029 June 2023 NRR E-mail Capture - Comanche Peak - Acceptance of License Amendment Request to Adopt 10 CFR 50.69, Risk-Informed Categorization and Treatment of Structures, Systems and Components for Nuclear Power Reactors ML23181A0202023-06-29029 June 2023 Email from Mark Yoo (NRC) to Ken Peters (Vistra) - Comanche Peak LRA - Request for Additional Information - Set 2 ML23172A0152023-06-20020 June 2023 NRR E-mail Capture - Re Comanche Peak - Acceptance of License Amendment Request Regarding General Design Criterion 5 of Appendix a to 10 CFR Part 50 and Regulatory Guide 1.81 ML23167A0222023-06-14014 June 2023 Email: Request for Additional Information (RAI) Letter for the Review of the Comanche Peak Initial License Renewal Application, Set 1 ML23145A2332023-05-25025 May 2023 Email from Mark Yoo (NRC) to Ken Peters (Vistra) - Comanche Peak LRA - Request for Confirmation of Information - Set 2 ML23143A1382023-05-23023 May 2023 Email from Mark Yoo (NRC) to Ken Peters (Vistra) - Comanche Peak LRA - Request for Confirmation of Information - Set 1 ML23138A1522023-05-18018 May 2023 Lr Docs - (External_Sender) Comanche Peak Nuclear Power Plants ML23139A0802023-05-18018 May 2023 NRR E-mail Capture - Comanche Peak Draft Supplemental Information Request - License Amendment Request Regarding General Design Criterion 5 of Appendix a to 10 CFR Part 50 and Regulatory Guide 1.81 ML23135A9132023-05-15015 May 2023 NRR E-mail Capture - Comanche Peak - Draft Supplemental Information Request - License Amendment Request to 10 CFR 50.69 ML23131A2932023-05-11011 May 2023 Lr Docs - License Renewal for Comanche Peak Nuclear Power Plant, Units 1 and 2 ML23128A1612023-05-0808 May 2023 NRR E-mail Capture - Comanche Peak Nuclear Power Plant, Units 1 and 2, Beaver Valley Power Station, Unit Nos. 1 and 2, Davis-Besse Nuclear Power Station, Unit 1, and Perry Nuclear Power Plant, Unit No. 1 - Acceptance of Requested Licensing ML23110A7122023-04-20020 April 2023 NRR E-mail Capture - Comanche Peak - Verbal Authorization of Proposed Alternative RV-1 (L-2023-LLR-0019) ML23103A4682023-04-11011 April 2023 NRR E-mail Capture - Comanche Peak Request for Additional Information - License Amendment Request to Apply the Westinghouse Full Spectrum Loss of Coolant Accident Evaluation Model ML23086B9852023-03-27027 March 2023 NRR E-mail Capture - Comanche Peak Draft Request for Additional Information - Request to Apply the Westinghouse Full Spectrum Loss of Coolant Accident Evaluation Model ML23061A1612023-03-0202 March 2023 E-mail from David Griggs Regarding Submission to NRC Electronic Information Exchange on 03/01/2023 for Citizens for Fair Utility Regulation in Comanche Peak Proceeding ML23032A3842023-02-0101 February 2023 LRA On-Site Audit Needs List ML23214A0192023-01-30030 January 2023 (External_Sender) Request to Broaden Extended Deadline to the General Public (with Attachments) - C3 ML23214A0202023-01-29029 January 2023 (External_Sender) Requesting a Deadline Extension on NRC-2002-0183, Comanche Peak License Renewal - C2 ML23214A0182023-01-26026 January 2023 (External Sender) NRC-2022-0183-0003 (with Attachment) - C6 ML23214A0162023-01-24024 January 2023 (External Sender) EPA Scoping Comment Letter for the Comanche Peak Nuclear Power Plant License Renewal (with Attachment) - C8 ML23214A0142023-01-23023 January 2023 (External Sender) Docket NRC-2022-0183 Comanche Peak Nuclear Power Plant Renewal (with Attachment) - C1 ML23214A0132023-01-17017 January 2023 (External Sender) Docket Id NRC-2022-0183, Request for Extension of License for Comanche Peak, Comment for Environmental Scoping - C9 ML23214A0172023-01-17017 January 2023 (External Sender) NRC License Extension? No! ML23214A0122023-01-13013 January 2023 (External Sender) Correction to Comment Submitted 01-13-23 - C11 ML22362A0972022-12-28028 December 2022 NRR E-mail Capture - Comanche Peak - Acceptance of License Amendment Request to Adopt WCAP-17661-P-A, Revision 1, Improved RAOC and CAOC Fq Surveillance Technical Specifications, ML22362A0992022-12-28028 December 2022 NRR E-mail Capture - Comanche Peak - Acceptance of License Amendment Request to Apply Westinghouse Fsloca Evaluation Model ML22325A2742022-11-21021 November 2022 NRR E-mail Capture - Comanche Peak - Request for Additional Information - Proposed Alternative P-1 Regarding IST of Safeguards Building Sump Pumps ML22318A3102022-11-10010 November 2022 NRR E-mail Capture - Comanche Peak - Draft Request for Additional Information - Proposed Alternative P-1 Regarding IST of Safeguards Building Sump Pumps ML22237A2842022-08-25025 August 2022 CPNPP 2022 EP Program Inspection RFI Hjs 08252022 ML22229A0792022-08-17017 August 2022 NRR E-mail Capture - Comanche Peak - Acceptance of Requested Licensing Action - Proposed Alternative P-1 Regarding IST of Safeguards Building Sump Pumps ML22230B1092022-08-17017 August 2022 NRR E-mail Capture - Comanche Peak Unit 2 - Request for Additional Information - 2RE19 Inspection Summary Report for Steam Generator Tubing ML22220A1942022-08-0808 August 2022 NRR E-mail Capture - Comanche Peak Unit 2 - Draft Request for Additional Information - 2RE19 Inspection Summary Report for Steam Generator Tubing ML22133A0472022-05-13013 May 2022 July 2022 Emergency Preparedness Exercise Inspection - Request for Information ML22083A0262022-03-23023 March 2022 NRR E-mail Capture - Comanche Peak - Request for Additional Information - Request to Adopt TSTF 505 Revision 2 2024-09-18
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1 NRR-PMDAPEm Resource From: Singal, Balwant Sent: Thursday, January 30, 2014 8:35 AM To: 'Hope, Timothy' (Timothy.Hope@luminant.com)
Cc: Seawright, Jimmy (Jimmy.Seawright@lum inant.com); 'Jack.Hicks@luminant.com' (Jack.Hicks@luminant.com)
Subject:
Follow-up Request for Additional Information for Relief Request C TAC MF2997 Attachments:
MF2997-Followup-RAI.docx Tim, Attached is the follow-up Request for Additional Information (RAI) for the subject Relief Request (RR). This request was discussed between your and NRC staff on January 28, 2014. Since Luminant Generation Company LLC (Luminant) has requested for an expedited review, it was agreed that Luminant will respond to this request as soon as possible, but no later than 30 days from the date of this e-mail. Please treat this e-mail as formal transmittal of the RAI.
Please advise if you have any questions.
Thanking you.
Balwant K. Singal Senior Project Manager (Comanche Peak and STP)
Nuclear Regulatory Commission
Division of Operating Reactor Licensing Balwant.Singal@nrc.gov Tel: (301) 415-3016 Fax: (301) 415-1222
Hearing Identifier: NRR_PMDA Email Number: 1049 Mail Envelope Properties (Balwant.Singal@nrc.gov20140130083500)
Subject:
Follow-up Request for Additional Information for Relief Request C TAC MF2997 Sent Date: 1/30/2014 8:35:01 AM Received Date: 1/30/2014 8:35:00 AM From: Singal, Balwant Created By: Balwant.Singal@nrc.gov Recipients: "Seawright, Jimmy (Jimmy.Seawright@luminant.com)" <Jimmy.Seawright@luminant.com> Tracking Status: None
"'Jack.Hicks@luminant.com' (Jack.Hicks@luminant.com)" <Jack.Hicks@luminant.com> Tracking Status: None "'Hope, Timothy' (Timothy.Hope@luminant.com)" <Timothy.Hope@luminant.com>
Tracking Status: None Post Office: Files Size Date & Time MESSAGE 791 1/30/2014 8:35:00 AM MF2997-Followup-RAI.docx 22397 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received:
REQUEST FOR ADDITIONAL INFORMATION RELIEF REQUEST C-3 LUMINANT GENERATION COMPANY LLC COMANCHE PEAK NUCLEAR POWER PLANT, UNIT 2 DOCKET NO. 50-446
By letter dated October 31, 2013 (Agencywide Documents Access and Management Systems (ADAMS) Accession No. ML13312A121), Luminant Generation Company LLC (Luminant, the licensee) submitted for the U.S. Nuclear Regulatory Commission (NRC) approval relief request (RR) C-3. The licensee proposed an alternative to a certain requirement of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code),Section XI.
RR C-3 relates to the inservice inspection (ISI) requirement of IWC-5220 of the ASME Code,Section XI, for the system leakage test of the reactor pressure vessel (RPV) flange leak-off piping. The licensee submitted the request for the Comanche Peak Nuclear Power Plant (CPNPP), Unit 2.
The NRC staff requests the following additional follow-up information.
- 1. Section 5 "Burden Caused by Compliance" and Section 6 "Proposed Alternative and Basis for Use" of Attachment 1 of RR C-3 stated, in part, Therefore, compliance with the IWC-5220 system leakage test requirements results in an unnecessary hardship without a sufficient compensating increase in the level of quality and safety.
In lieu of the requirements of IWC-5220, a VT-2 visual examination of the accessible areas will be performed each period on the piping subjected to the static pressure head when the reactor cavity is filled. This test will be part of the reactor coolant Class 2 leakage test.
The NRC staff notes that the ASME Code,Section XI, IWC-5220 "System Leakage Testing" includes two sub-articles, IWC-5221 "Pressure" and IWC-5222 "Boundaries."
(a) Please clarify whether the proposed system leakage test was submitted as an alternative to address only the pressure requirement as specified in IWC-5221. (b) IWC-5222(a) and (b) require specific pressure boundaries for the system pressure tests. The
NRC staff notes that the licensee's submittal did not address the requirements of IWC-5222(a) and (b). If IWC-5222(a) and IWC-5222 (b) are also the subject of this RR, please discuss the hardship caused by compliance with IWC-5222(a) and IWC-5222(b),
and provide corresponding alternatives.
- 2. Please discuss leakage detection capabilities at the plant, and or any measure(s) taken, to monitor and identify leakage in an unlikely event of a through wall leak in the RPV flange seal leak-off line piping concurrent with leak or failure of the RPV flange inner seal during normal operation.