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Category:E-Mail
MONTHYEARML24221A4172024-08-0101 August 2024 DC Cook 2024 PI&R Inspection Request for Information ML24178A0432024-06-26026 June 2024 NRR E-mail Capture - Final RAI - D.C. Cook 1 & 2 - License Amendment Request Regarding Neutron Flux Instrumentation ML24156A0072024-05-30030 May 2024 NRR E-mail Capture - Final RAI - D.C. Cook Nuclear Plant, Unit Nos. 1 and 2 - License Amendment Request Regarding Reserve Feed Enclosure ML24156A0052024-05-22022 May 2024 NRR E-mail Capture - D.C. Cook Nuclear Plant, Unit Nos. 1 and 2 - Acceptance of License Amendment Request Regarding Reserve Feed Enclosure ML24103A1392024-04-12012 April 2024 NRR E-mail Capture - D.C. Cook Nuclear Plant, Unit Nos. 1 and 2 - Acceptance of License Amendment Request Regarding Adoption of 10 CFR 50.69 ML24096A1132024-04-0505 April 2024 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Delay in Issuance of License Amendment Regarding Neutron Flux Instrumentation ML24093A0582024-04-0202 April 2024 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit No. 1 - Acceptance of License Amendment Request Regarding Technical Specification 3.4.12, Low Temperature Overpressure Protection (LTOP) System, ML23361A1022023-12-21021 December 2023 Security Rule Exemption Request - ISFSI Docket No. Reference ML23321A1222023-11-17017 November 2023 NRR E-mail Capture - Final RAI - D.C. Cook 1 & 2 - License Amendment Request Regarding Neutron Flux Instrumentation ML23052A1502023-02-21021 February 2023 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance of License Amendment Request Regarding Neutron Flux Instrumentation ML22307A2532022-11-0303 November 2022 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit No. 2 - Verbal Authorization of Relief Request ISIR-5-06 Regarding Alternative to N-729-6 for RPV Head Visual Examination ML22122A0902022-04-29029 April 2022 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance of License Amendment Request to Revise Technical Specifications Consistent with TSTF-554, Revision 1 ML22250A6712022-02-16016 February 2022 Outline Submittal Notification Email DC-Cook 2022 ML21341A6252021-12-0707 December 2021 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance of License Amendment Request to Revise Technical Specifications Consistent with TSTF-577, Revision 1 ML21307A3352021-11-0303 November 2021 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Final RAI - License Amendment Request Regarding Containment Water Level Instrumentation ML21236A0262021-08-23023 August 2021 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit No. 2 - Acceptance of License Amendment Regarding Changes to Reactor Vessel Heatup and Cooldown Curves and Low Temperature Overpressure Protection System Requirements ML21140A3052021-05-20020 May 2021 NRR E-mail Capture - Final RAI - D.C. Cook 1 & 2 - Relief Request ISIR-4-11, Impractical Examinations for the Fourth 10-Year ISI Interval ML21113A2812021-04-23023 April 2021 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance of License Amendment Request Regarding Containment Water Level Instrumentation ML21089A0222021-03-24024 March 2021 DC Cook Power Operated Valves (POV) Preliminary Request for Information ML21082A0262021-03-22022 March 2021 Acceptance of Relief Request ISIR-4-11, Impractical Examinations for the Fourth 10-Year ISI Interval ML21049A2682021-02-16016 February 2021 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit No. 2 - Final RAI - License Amendment Request for One-Time Extension Containment Type a ILRT ML21026A3472021-01-26026 January 2021 NRR E-mail Capture - Final RAI - D.C. Cook 1 & 2 - Relief Request REL-PP2 for Pump and Valve IST Fifth 10-year Interval ML21008A4742021-01-0808 January 2021 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit No. 2 - Acceptance of License Amendment Request for One-Time Extension Containment Type a ILRT ML20366A1012020-12-31031 December 2020 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit No. 2 - Acceptance of License Amendment Request for One-Time Deferral of Steam Generator Inspection ML20316A0152020-11-0606 November 2020 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance of Relief Request REL-PP2 for Pump and Valve IST Fifth 10-year Interval ML20318A0202020-10-16016 October 2020 NRR E-mail Capture - Regarding Public Comment on D.C. Cook, Unit 1 Request for Relief from Nozzle Inspections, Code Case N-729 ML20289A7122020-10-15015 October 2020 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit No. 1 - Verbal Authorization of Relief Request ISIR-5-04 Regarding Alternative to N-729-6 for RPV Head Visual Examination ML20290A4252020-10-15015 October 2020 Verbal Authorization of Relief Request ISIR-5-04 Regarding Alternative to N-729-6 for RPV Head Visual Examination ML20318A0192020-10-15015 October 2020 NRR E-mail Capture - (External_Sender) Supplemental Public Comment on D.C. Cook, Unit 1 Request for Relief from Nozzle Inspections, Code Case N-729 ML20289A1192020-10-0909 October 2020 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance of Relief Request for Alternative to N-729-4 for RPV Head Visual Examination ML20318A0182020-10-0909 October 2020 NRR E-mail Capture - (External_Sender) Public Comment on D.C. Cook, Unit 1 Request for Relief from Nozzle Inspections, Code Case N-729 ML20181A4122020-06-29029 June 2020 NRR E-mail Capture - Final RAI - D.C. Cook 1 - One-Time Extension, Containment Type a ILRT Frequency ML20149K6272020-05-28028 May 2020 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance of License Amendment and Exemptions Regarding UFSAR 10 CFR 50.71(e)(4) Update Schedule (Epids: L-2020-LLA-0100, L-2020-LLE-0052, L-2020-LLE-0053) ML20149K4332020-05-26026 May 2020 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance of License Amendment Request to Revise Technical Specifications Consistent with TSTF-567, Revision 1 ML20141L6062020-05-20020 May 2020 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance of License Amendment Request to Revise Technical Specifications Consistent with TSTF-541, Revision 2 ML20141L8112020-05-20020 May 2020 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance of Relief Request Regarding Impracticality for Inservice Inspection for Certain Welds ML20136A5162020-05-15015 May 2020 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance of License Amendment Request to Revise Technical Specifications Consistent with TSTF-412, Revision 3 ML20133J9662020-05-11011 May 2020 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit No. 1 - Acceptance of License Amendment Regarding Changes to Reactor Vessel Heatup and Cooldown Curves and Low Temperature Overpressure Protection System Requirements ML20232B4562020-04-27027 April 2020 Request for Supporting Information for the D.C. Cook SPRA Audit Review - Fragility Questions ML20232B4432020-03-25025 March 2020 Request for Supporting Information for the D.C. Cook SPRA Audit Review - Plant Response Model Questions ML19345F9382019-12-0909 December 2019 D.C. Cook 50.54(f) SPRA Submittal - Completeness Review Done and Path Forward ML19333B8042019-11-29029 November 2019 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance Review for LAR to Adopt TSTF-569 (L-2019-LLA-0248) ML19309F9212019-11-0505 November 2019 Request for Eportal Access for Audit Review of the DC Cook SPRA Supporting Documents ML19270E7372019-09-26026 September 2019 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance Review for LAR to Adopt TSTF-421, Reactor Coolant Pump Flywheel Inspection Program ML19207A4642019-07-26026 July 2019 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance Review for LAR to Delete Diesel Generator Load Test Resistor Banks ML19204A0962019-07-23023 July 2019 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Request for Additional Information Related to Unit 2 Leak Before Break Analysis and Deletion of Containment Humidity Monitors for Unit Nos. 1 and 2 ML19211C3032019-07-0303 July 2019 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 & 2 - Request for Additional Information Related to LAR to Address NSAL-15-1 ML19175A3032019-06-24024 June 2019 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit No. 2 - Acceptance Review for LAR to Revise Battery Monitoring and Maintenance TS ML19092A4802019-04-0202 April 2019 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance Review for LAR to Adopt TSTF-563 ML19092A4792019-04-0202 April 2019 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Acceptance Review for LAR to Address Issues Identified in Westinghouse Document NSAL-15-1 2024-08-01
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML24178A0432024-06-26026 June 2024 NRR E-mail Capture - Final RAI - D.C. Cook 1 & 2 - License Amendment Request Regarding Neutron Flux Instrumentation ML24156A0072024-05-30030 May 2024 NRR E-mail Capture - Final RAI - D.C. Cook Nuclear Plant, Unit Nos. 1 and 2 - License Amendment Request Regarding Reserve Feed Enclosure ML24141A2162024-05-20020 May 2024 —Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection ML23352A3502023-12-19019 December 2023 Dc. Cook Nuclear Power Plant, Units 1 Biennial Licensed Operator Requalification Program Inspection and Request for Information ML23310A1152023-11-0606 November 2023 Notification of the NRC Baseline Inspection and Request for Information, Inspection Report 05000316/2024002 ML22264A1112022-09-21021 September 2022 Notification of Post-Approval Site Inspection for License Renewal - Phase IV; IR 05000315/2023010; 05000316/2023010 and RFI ML22230A4362022-08-19019 August 2022 Licensed Operator Positive Fitness-For-Duty Test ML22049B4532022-02-22022 February 2022 Notification of NRC Baseline Inspection and Request for Information Report 05000315/2022002 ML21307A3352021-11-0303 November 2021 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Final RAI - License Amendment Request Regarding Containment Water Level Instrumentation ML21215A1242021-08-0303 August 2021 Information Request to Support Upcoming Temporary Instruction 2515/194 Inspection; Inspection Report 05000315/2021013; 05000316/2021013 ML21140A3052021-05-20020 May 2021 NRR E-mail Capture - Final RAI - D.C. Cook 1 & 2 - Relief Request ISIR-4-11, Impractical Examinations for the Fourth 10-Year ISI Interval ML21049A2682021-02-16016 February 2021 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit No. 2 - Final RAI - License Amendment Request for One-Time Extension Containment Type a ILRT ML21026A3472021-01-26026 January 2021 NRR E-mail Capture - Final RAI - D.C. Cook 1 & 2 - Relief Request REL-PP2 for Pump and Valve IST Fifth 10-year Interval IR 05000315/20200112020-09-17017 September 2020 Information Request to Support Upcoming Temporary Instruction 2515/194 Inspection; Inspection Report 05000315/2020011; 05000316/2020011 ML20181A4122020-06-29029 June 2020 NRR E-mail Capture - Final RAI - D.C. Cook 1 - One-Time Extension, Containment Type a ILRT Frequency ML20232B4562020-04-27027 April 2020 Request for Supporting Information for the D.C. Cook SPRA Audit Review - Fragility Questions IR 05000315/20200202020-04-10010 April 2020 Units 1 and 2 - Information Request for NRC Triennial Evaluation of Changes, Tests, and Experiments (50.59) Baseline Inspection 05000315/2020020 and 05000316/2020020 ML20232B4432020-03-25025 March 2020 Request for Supporting Information for the D.C. Cook SPRA Audit Review - Plant Response Model Questions ML19267A1362019-09-24024 September 2019 NRC Information Request (September 23, 2019) - IP 71111.08 - DC Cook U2 - Documents Selected for Onsite Review (DRS-M.Holmberg) ML19204A0962019-07-23023 July 2019 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 and 2 - Request for Additional Information Related to Unit 2 Leak Before Break Analysis and Deletion of Containment Humidity Monitors for Unit Nos. 1 and 2 ML19211C3032019-07-0303 July 2019 NRR E-mail Capture - D.C. Cook Nuclear Plant Unit Nos. 1 & 2 - Request for Additional Information Related to LAR to Address NSAL-15-1 ML19084A0002019-03-20020 March 2019 NRR E-mail Capture - Resubmitted: Draft Request for Additional Information DC Cook Unit 1 - Leak-Before-Break LAR ML19072A1432019-03-12012 March 2019 NRR E-mail Capture - Resubmitted: Draft Request for Additional Information DC Cook Unit 1 - Leak-Before-Break LAR ML19011A3512019-01-11011 January 2019 NRR E-mail Capture - Request for Additional Information DC Cook Unit 1 Leak Before Break Amendment ML18313A0802018-11-0808 November 2018 NRR E-mail Capture - D.C. Cook Units 1 and 2 - RAI for RPV Threads in Flange Alternative ML18263A1542018-09-14014 September 2018 NRR E-mail Capture - D.C. Cook Unit No. 1 - RAI for Leak-Before-Break LAR ML18204A3722018-07-19019 July 2018 NRR E-mail Capture - D.C. Cook Unit No. 1 - RAI for Leak-Before-Break LAR ML18143B6292018-05-29029 May 2018 Dtf. RAI ML18142B5312018-05-29029 May 2018 Request for Additional Information Concerning 2017 Decommissioning Funding Status Report ML18060A0212018-02-28028 February 2018 Enclosurequest for Additional Information (Request for Additional Information Regarding Indiana Michigan Power Company'S Decommissioning Funding Update for Donald C Cook Nuclear Plant Units 1 and 2 ISFSI) ML18043A0092018-02-0909 February 2018 NRR E-mail Capture - DC Cook, Unit 2 - Request for Additional Information Regarding Reactor Vessel Internals Again Management Program ML17304A0102017-11-0101 November 2017 Unit Nos.1 and 2 - Request for Additional Information Regarding Generic Letter 2016-01, Monitoring of Neutron-Absorbing Materials in Spent Fuel Pools (CAC Nos. MF9444 and MF9445; EPID L-2016-LRC-0001) ML17249A7492017-08-28028 August 2017 E-Mail Sent August 28, 2017, Request for Information for Donald C. Cook Nuclear Power Plant, Unit 1 (Part B); Inspection Report 05000315/2017004 (Msh) ML17108A7772017-04-18018 April 2017 17 Donald C. Cook Nuclear Power Plant, Unit 1 - Notification of NRC Baseline Inspection and Request for Information (05000315/2017003; 05000316/2017003) (Msh) ML17068A0652017-03-0808 March 2017 Ltr 03/08/17 Donald C. Cook Nuclear Power Plant, Unit 2 - Information Request for an NRC Post-Approval Site Inspection for License Renewal 05000316/2017009 (Bxj) ML17027A0192017-01-26026 January 2017 NRR E-mail Capture - D.C. Cook Units 1 and 2 - RAI Regarding LAR to Revise TS 5.5.14 (MF8483 and MF8484) ML16211A0152016-08-0101 August 2016 Follow-Up Request for Additional Information Regarding License Amendment Request to Relocate Surveillance Frequencies to Licensee Control IR 05000315/20160042016-07-11011 July 2016 Donald C. Cook Nuclear Power Plant, Unit 2 - Notification of NRC Inspection and Request for Information; Inspection Report 05000315/2016004; 05000316/2016004 ML16193A6542016-07-11011 July 2016 Notification of NRC Inspection and Request for Information; Inspection Report 05000315/2016004; 05000316/2016004 ML16154A1822016-06-0909 June 2016 Request for Additional Information Regarding License Amendment Request to Relocate Surveillance Frequencies to Licensee Control (CAC Nos. MF7114 and MF7115) ML16127A0792016-05-11011 May 2016 Request for Additional Information Regarding License Amendment Request to Relocate Surveillance Frequencies to Licensee Control ML16025A0552016-01-22022 January 2016 Ltr. 01/22/16 Donald C. Cook Nuclear Power Plant, Units 1 and 2 - Request for Information for an NRC Pilot Design Bases Inspection on the Implementation of the Environmental Qualification Program Inspection Report 05000315/2016008; 05000316 ML15267A6832015-10-0505 October 2015 Second Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 3.8.1 ML15231A5542015-08-18018 August 2015 Ltr. 08/18/15 Donald C. Cook Nuclear Power Plant, Units 1 and 2 - Request for Information for an NRC Triennial Pilot Baseline Component Design Bases Inspection (Inspection Report 05000315/2015008; 05000316/2015008) (Axd) ML15225A5772015-08-13013 August 2015 Information Request to Support Upcoming Problem Identification and Resolution Inspection at D.C. Cook, Units 1 and 2 ML15163A1672015-06-15015 June 2015 Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 3.8.1 ML15149A3832015-05-28028 May 2015 Information Request to Support NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection (Mxg) ML15119A3392015-05-0505 May 2015 Follow-up Request for Additional Information Concerning the Reactor Vessel Internals Aging Management Program Submittal ML15055A5702015-02-24024 February 2015 Cyber Security RFI Temporary Instruction 2201/004 ML15022A1532015-01-21021 January 2015 Dccook ISI Request for Information 2024-06-26
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Text
Accession No. ML102910036
From: Tam, Peter Sent: Monday, October 18, 2010 7:07 AM To: mkscarpello@aep.com; 'hletheridge@aep.com'; jrwaters@aep.com Cc: Torres, Roberto; Dennig, Robert; Pascarelli, Robert
Subject:
D.C. Cook Units 1 and 2 - Draft RAI re. the proposed amendment concerning containment spray nozzle surveillance (TAC ME4125 and ME4126)
Michael: The NRC staff is reviewing your application for amendment regarding containment spray nozzle surveillance requirements, dated 6/22/10. We would like to discuss with you the following questions/comments in a conference call. In the conference call we will discuss with you the disposition of these questions/comments, including a target date for your formal response. The submittal states that "There have been; instances at CNP where water was discovered dripping from one or more spray nozzles located above the containment lower ventilation units in the lower containment annular region. Investigations determined this can occur if a valve relied upon to isolate a portion of the system leaks by, or if the heat exchanger tubes are not completely drained after being leak tested during a refueling outage. An inspection was performed inside the spray ring for the Unit 1 west train after discovery of dripping water."
The NRC staff notes that there is no discussion of similar events occurring in Unit 2. Along with the review of the licensee's request to revise the testing frequency for the containment spray nozzles from "10 years" to "following maintenance that could result in nozzle blockage," the NRC staff has to assess if there is high confidence that spray nozzles are unobstructed as of the last flow test. In order to provide reasonable assurance that the potential for nozzle obstruction is acceptably low, please provide the following information:
(1) A description of any events where active boric acid have been identified in containment for which it appeared to be coming from the Unit 2 containment spray annulus.
(2) A summary of the containment spray system's past history at Unit 2 as of the last flow test (performed in 2000).
(3) Description of the corrective action plan in the event of inadvertent fluid flow through the containment spray nozzles. Please note that inadvertent fluid flow through the spray nozzles increases the likelihood of solid boric acid and corrosion type debris accumulation in the spray lines or nozzles which could result in the obstruction of flow paths.
The sole purpose of this e-mail is to prepare you and others for the proposed conference call. This e-mail does not formally request for additional information, and does not convey a formal NRC staff position.
Peter S. Tam Senior Project Manager (for D. C. Cook and Monticello) Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Tel. 301-415-1451
E-mail Properties Mail Envelope Properties (0A64B42AAA8FD4418CE1EB5240A6FED1219553AC3A)
Subject:
D.C. Cook Units 1 and 2 - Draft RAI re. the proposed amendment concerning containment spray nozzle surveillance (TAC ME4125 and ME4126)
Sent Date: 10/18/2010 7:07:02 AM Received Date: 10/18/2010 7:07:00 AM From: Tam, Peter
Created By: Peter.Tam@nrc.gov
Recipients:
mkscarpello@aep.com (mkscarpello@aep.com)
Tracking Status: None hletheridge@aep.com ('hletheridge@aep.com')
Tracking Status: None jrwaters@aep.com (jrwaters@aep.com) Tracking Status: None Roberto.Torres@nrc.gov (Torres, Roberto)
Tracking Status: None Robert.Dennig@nrc.gov (Dennig, Robert)
Tracking Status: None Robert.Pascarelli@nrc.gov (Pascarelli, Robert)
Tracking Status: None
Post Office:
HQCLSTR02.nrc.gov
Files Size Date & Time
MESSAGE 12917 10/18/2010
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Priority: olImportanceNormal ReplyRequested: False Return Notification: False
Sensitivity: olNormal Recipients received: