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| | issue date = 07/30/2014 | | | issue date = 07/30/2014 |
| | title = June 19, 2014, Summary of Telephone Conference Call Held Between NRC and Tennessee Valley Authority, Concerning Requests for Additional Information Pertaining to the Sequoyah, Units 1 & 2, License Renewal Application | | | title = June 19, 2014, Summary of Telephone Conference Call Held Between NRC and Tennessee Valley Authority, Concerning Requests for Additional Information Pertaining to the Sequoyah, Units 1 & 2, License Renewal Application |
| | author name = Sayoc E C | | | author name = Sayoc E |
| | author affiliation = NRC/NRR/DLR/RPB1 | | | author affiliation = NRC/NRR/DLR/RPB1 |
| | addressee name = | | | addressee name = |
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| | docket = 05000327, 05000328 | | | docket = 05000327, 05000328 |
| | license number = | | | license number = |
| | contact person = Sayoc E C, 415-4084 | | | contact person = Sayoc E, 415-4084 |
| | case reference number = TAC MF0481, TAC MF0482 | | | case reference number = TAC MF0481, TAC MF0482 |
| | document type = Meeting Summary, Request for Additional Information (RAI) | | | document type = Meeting Summary, Request for Additional Information (RAI) |
| | page count = 8 | | | page count = 8 |
| | project = TAC:MF0481, TAC:MF0482 | | | project = TAC:MF0481, TAC:MF0482 |
| | stage = Other | | | stage = RAI |
| }} | | }} |
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| =Text= | | =Text= |
| {{#Wiki_filter: UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 July 30, 2014 LICENSEE: Tennessee Valley Authority FACILITY: Sequoyah Nuclear Plant, Units 1 and 2 SUBJECT: SUMMARY OF TELEPHONE CONFERENCE CALL HELD ON JUNE 19, 2014, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND TENNESSEE VALLEY AUTHORITY, CONCERNING REQUESTS FOR ADDITIONAL INFORMATION PERTAINING TO THE SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC. NOS. MF0481 AND MF0482). The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Tennessee Valley Authority held a telephone conference call on June 19, 2014, to discuss and clarify the staff's requests for additional information (RAIs) concerning the Sequoyah Nuclear Plant, Units 1 and 2, license renewal application. The telephone conference call was useful in clarifying the intent of the staff's RAIs. Enclosure 1 provides a listing of the participants and Enclosure 2 contains a listing of the RAIs discussed with the applicant, including a brief description on the status of the items. The applicant had an opportunity to comment on this summary. | | {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 July 30, 2014 LICENSEE: Tennessee Valley Authority FACILITY: Sequoyah Nuclear Plant, Units 1 and 2 |
| /RA/ Emmanuel Sayoc, Project Manager Projects Branch 1 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-327 and 50-328 Enclosures: 1. List of Participants 2. List of Requests for Additional Information cc w/encls: Listserv
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| July 30, 2014 LICENSEE: Tennessee Valley Authority FACILITY: Sequoyah Nuclear Plant, Units 1 and 2 SUBJECT: SUMMARY OF TELEPHONE CONFERENCE CALL HELD ON JUNE 19, 2014, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND TENNESSEE VALLEY AUTHORITY, CONCERNING REQUESTS FOR ADDITIONAL INFORMATION PERTAINING TO THE SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC. NOS. MF0481 AND MF0482). The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Tennessee Valley Authority held a telephone conference call on June 19, 2014, to discuss and clarify the staff's requests for additional information (RAIs) concerning the Sequoyah Nuclear Plant, Units 1 and 2, license renewal application. The telephone conference call was useful in clarifying the intent of the staff's RAIs. Enclosure 1 provides a listing of the participants and Enclosure 2 contains a listing of the RAIs discussed with the applicant, including a brief description on the status of the items. The applicant had an opportunity to comment on this summary.
| | ==SUBJECT:== |
| /RA/ Emmanuel Sayoc, Project Manager Projects Branch 1 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-327 and 50-328 Enclosures: 1. List of Participants 2. List of Requests for Additional Information cc w/encls: Listserv DISTRIBUTION: See next page ADAMS Accession No.: ML14174A737 *concurred via email OFFICE LA:DLR* PM:RPB1:DLR PM: RPB1:DLR BC:RPB1:DLR PM:RPB1:DLR NAME YEdmonds ESayoc JDaily Y Diaz-Sanabria ESayoc DATE 7/9/14 7/17/14 7/23/14 7/30/14 7/30/14 OFFICIAL RECORD COPY ENCLOSURE 1 TELEPHONE CONFERENCE CALL SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS JUNE 19, 2014 PARTICIPANTS AFFILIATIONS Richard Plasse U.S. Nuclear Regulatory Commission (NRC) Emmanuel Sayoc NRC William Holston NRC James Gavula NRC Henry Lee Tennessee Valley Authority (TVA) Dennis Lundy TVA Michael Ryan Henderson TVA Beth Ann Jenkins TVA Jeremy Wayne Mayo TVA Donald G. Sutton TVA REQUESTS FOR ADDITIONAL INFORMATION DISCUSSED SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION JUNE 19, 2014 The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Tennessee Valley Authority (TVA) held a telephone conference call on June 19, 2014, to discuss and clarify the following requests for additional information (RAIs) concerning the license renewal application (LRA). Sequoyah Nuclear Plant, Units 1 and 2 (SQN) draft RAI B.1.38-4, included below, was discussed on June 19, 2014. The requests were clear to TVA. TVA presented a Problem Event Report (PER) number 900557 outlined below, which was discussed by both parties. The PER summarizes the NRC's technical issues around the Ultrasonic Testing (UT) techniques related to the Fire Water and Service Water System aging management programs (AMPs) and TVA's proposal to add commitments to develop, conduct, document, and credit UT technique demonstrations to the AMPs. Proposed commitments are added to the TVA corrective action program (CAP) and will be outlined in TVA's Corporate Nuclear Licensing Letter CNL-14-105 scheduled to be submitted to the NRC on or around July 3, 2014. As such the staff elected to not send the following draft RAIs to the applicant in lieu of the scheduled letter. RAI B.1.38-4 Use of UT to detect debris in Service Water Integrity program Background: In the clarification dated December 16, 2013, to the response for RAI 3.0.3-1 (which related to the staff's questions for the use of UT to detect flow blockage in the Fire Water System program), TVA stated that it had "demonstrated the use of UT on the ERCW [essential raw cooling water] system to identify blockage from silt and clams." In a follow-up RAI B.1.13-4 questioning the effectiveness of the UT technique to detect flow blockage, the staff specifically asked TVA to describe the practical demonstration performed on the ERCW system and to describe the results of the field inspections conducted using this UT procedure. By letter dated April 22, 2014, TVA responded to the additional questions in RAI B.1.13-4 and placed a copy of the associated procedure, N-UT-11, "Ultrasonic Examination for Detecting and Measuring Fluid Levels in Austenitic and Ferritic Systems," on the Certrec website for NRC review. Regarding the practical demonstration, TVA stated: "No demonstrations were formally conducted or documented for this process." Regarding the results of field inspections using this UT procedure, the response stated that TVA at Watts Bar performs clam/silt inspections quarterly using the described technique, and TVA at SQN performs clam/silt inspection on an annual frequency. The response also added: "TVA did not perform any demonstration UT field test inspection for flow blockage."
| | |
| Supplemental information subsequently provided by SQN on June 13, 2014, states that the referenced preventive maintenance (PM) program clam/silt inspections are not credited inspections in the SQN Generic Letter (GL) 89-13 program, and are not credited in the Service Water Integrity AMP. TVA also stated that the UT inspections of selected ERCW stagnant/dead leg piping to detect clams/silt are "informal supplemental inspections that are used as an early diagnostic indicator of potential piping blockage in the ERCW stagnant/dead leg piping-" | | ==SUMMARY== |
| - 2 - On March 3, 2014, TVA also placed inspection documentation for nine UT-detected piping blockages on its Certrec website for the NRC to review. The nine documents spanned the period between 2005 and 2013. The following statement is included in that documentation: During performance of PM06306166, ultrasonic [testing] showed silt in the dead legs of the ERCW piping from the main header 1A to normally closed valve 1-67-687, Flood Mode Supply to CCS [component cooling system] and from the main supply header 1B to normally closed valve 1-67-544, Emergency Supply to CCS Surge Tank A. UT showed that the water is not being blocked by the silt and if needed the system can still perform its intended function. A WO [work order] is being requested to flush these dead legs and prevent this silt from entering the flood mode system. Issue:
| | OF TELEPHONE CONFERENCE CALL HELD ON JUNE 19, 2014, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND TENNESSEE VALLEY AUTHORITY, CONCERNING REQUESTS FOR ADDITIONAL INFORMATION PERTAINING TO THE SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC. |
| | NOS. MF0481 AND MF0482). |
| | The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Tennessee Valley Authority held a telephone conference call on June 19, 2014, to discuss and clarify the staffs requests for additional information (RAIs) concerning the Sequoyah Nuclear Plant, Units 1 and 2, license renewal application. The telephone conference call was useful in clarifying the intent of the staffs RAIs. provides a listing of the participants and Enclosure 2 contains a listing of the RAIs discussed with the applicant, including a brief description on the status of the items. |
| | The applicant had an opportunity to comment on this summary. |
| | /RA/ |
| | Emmanuel Sayoc, Project Manager Projects Branch 1 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-327 and 50-328 |
| | |
| | ==Enclosures:== |
| | : 1. List of Participants |
| | : 2. List of Requests for Additional Information cc w/encls: Listserv |
| | |
| | ML14174A737 *concurred via email OFFICE LA:DLR* PM:RPB1:DLR PM: RPB1:DLR BC:RPB1:DLR PM:RPB1:DLR NAME YEdmonds ESayoc JDaily Y Diaz-Sanabria ESayoc DATE 7/9/14 7/17/14 7/23/14 7/30/14 7/30/14 |
| | |
| | TELEPHONE CONFERENCE CALL SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS JUNE 19, 2014 PARTICIPANTS AFFILIATIONS Richard Plasse U.S. Nuclear Regulatory Commission (NRC) |
| | Emmanuel Sayoc NRC William Holston NRC James Gavula NRC Henry Lee Tennessee Valley Authority (TVA) |
| | Dennis Lundy TVA Michael Ryan Henderson TVA Beth Ann Jenkins TVA Jeremy Wayne Mayo TVA Donald G. Sutton TVA ENCLOSURE 1 |
| | |
| | REQUESTS FOR ADDITIONAL INFORMATION DISCUSSED SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION JUNE 19, 2014 The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Tennessee Valley Authority (TVA) held a telephone conference call on June 19, 2014, to discuss and clarify the following requests for additional information (RAIs) concerning the license renewal application (LRA). |
| | Sequoyah Nuclear Plant, Units 1 and 2 (SQN) draft RAI B.1.38-4, included below, was discussed on June 19, 2014. The requests were clear to TVA. TVA presented a Problem Event Report (PER) number 900557 outlined below, which was discussed by both parties. The PER summarizes the NRCs technical issues around the Ultrasonic Testing (UT) techniques related to the Fire Water and Service Water System aging management programs (AMPs) and TVAs proposal to add commitments to develop, conduct, document, and credit UT technique demonstrations to the AMPs. Proposed commitments are added to the TVA corrective action program (CAP) and will be outlined in TVAs Corporate Nuclear Licensing Letter CNL-14-105 scheduled to be submitted to the NRC on or around July 3, 2014. As such the staff elected to not send the following draft RAIs to the applicant in lieu of the scheduled letter. |
| | RAI B.1.38-4 Use of UT to detect debris in Service Water Integrity program |
| | |
| | ==Background:== |
| | |
| | In the clarification dated December 16, 2013, to the response for RAI 3.0.3-1 (which related to the staffs questions for the use of UT to detect flow blockage in the Fire Water System program), TVA stated that it had demonstrated the use of UT on the ERCW [essential raw cooling water] system to identify blockage from silt and clams. In a follow-up RAI B.1.13-4 questioning the effectiveness of the UT technique to detect flow blockage, the staff specifically asked TVA to describe the practical demonstration performed on the ERCW system and to describe the results of the field inspections conducted using this UT procedure. By letter dated April 22, 2014, TVA responded to the additional questions in RAI B.1.13-4 and placed a copy of the associated procedure, N-UT-11, Ultrasonic Examination for Detecting and Measuring Fluid Levels in Austenitic and Ferritic Systems, on the Certrec website for NRC review. Regarding the practical demonstration, TVA stated: No demonstrations were formally conducted or documented for this process. Regarding the results of field inspections using this UT procedure, the response stated that TVA at Watts Bar performs clam/silt inspections quarterly using the described technique, and TVA at SQN performs clam/silt inspection on an annual frequency. The response also added: TVA did not perform any demonstration UT field test inspection for flow blockage. |
| | Supplemental information subsequently provided by SQN on June 13, 2014, states that the referenced preventive maintenance (PM) program clam/silt inspections are not credited inspections in the SQN Generic Letter (GL) 89-13 program, and are not credited in the Service Water Integrity AMP. TVA also stated that the UT inspections of selected ERCW stagnant/dead leg piping to detect clams/silt are informal supplemental inspections that are used as an early diagnostic indicator of potential piping blockage in the ERCW stagnant/dead leg piping |
| | |
| | On March 3, 2014, TVA also placed inspection documentation for nine UT-detected piping blockages on its Certrec website for the NRC to review. The nine documents spanned the period between 2005 and 2013. The following statement is included in that documentation: |
| | During performance of PM06306166, ultrasonic [testing] showed silt in the dead legs of the ERCW piping from the main header 1A to normally closed valve 1-67-687, Flood Mode Supply to CCS [component cooling system] and from the main supply header 1B to normally closed valve 1-67-544, Emergency Supply to CCS Surge Tank A. UT showed that the water is not being blocked by the silt and if needed the system can still perform its intended function. A WO [work order] is being requested to flush these dead legs and prevent this silt from entering the flood mode system. |
| | Issue: |
| TVA currently performs aging management activities through its PM program that are not described in the Service Water Integrity AMP. The specific activities are monitoring the stagnant/dead leg portions of the ERCW system for fouling using a UT technique. The results of these activities are used as the basis for taking corrective actions (i.e., system flushing) and for concluding that existing debris in the system would not prevent the system from performing its function. Since these activities result in the same actions as would be taken for a credited activity, and conclusions about system functions are drawn based on information obtained from these activities, they cannot be treated as informal supplemental inspections. | | TVA currently performs aging management activities through its PM program that are not described in the Service Water Integrity AMP. The specific activities are monitoring the stagnant/dead leg portions of the ERCW system for fouling using a UT technique. The results of these activities are used as the basis for taking corrective actions (i.e., system flushing) and for concluding that existing debris in the system would not prevent the system from performing its function. Since these activities result in the same actions as would be taken for a credited activity, and conclusions about system functions are drawn based on information obtained from these activities, they cannot be treated as informal supplemental inspections. |
| Since TVA has stated that the UT clam/silt inspections are not credited in either the GL 89-13 program or the Service Water Integrity program, it is not clear to the staff what aging management activities for this aging effect are being credited as part of the Service Water Integrity AMP, and how operating experience information, resulting from the UT inspections, is being factored back into the extent and frequency of the activities being credited by the Service Water Integrity AMP. Request: 1) For the period of extended operation, describe the specific aging management activities that will be performed to ensure, as specified in SQN's response to GL 89-13, stagnant/dead leg piping is not fouled or clogged. Include the relevant portions of existing implementing procedures and provide the frequency of the activities. 2) For the period of extended operation, describe how the operating experience information obtained through the UT inspections are accounted for in activities credited by the Service Water Integrity program. | | Since TVA has stated that the UT clam/silt inspections are not credited in either the GL 89-13 program or the Service Water Integrity program, it is not clear to the staff what aging management activities for this aging effect are being credited as part of the Service Water Integrity AMP, and how operating experience information, resulting from the UT inspections, is being factored back into the extent and frequency of the activities being credited by the Service Water Integrity AMP. |
| : 3) For the period of extended operation, a) describe how system function will be verified if UT inspections detect debris, and b) provide the programmatic constraints to ensure that UT inspections will not be credited as part of the Service Water Integrity Program, unless the technique has been demonstrated to effectively identify the amount and type of debris. | | Request: |
| - 3 - PER 900557 GL 89-13 Service Water - Managing Fouling in Dead Legs In the TVA SQN 89-13 letter to the NRC dated September 22, 1995 (S64950922800), SQN provided a revised GL 89-13 Service Water System program and status update.
| | : 1) For the period of extended operation, describe the specific aging management activities that will be performed to ensure, as specified in SQNs response to GL 89-13, stagnant/dead leg piping is not fouled or clogged. Include the relevant portions of existing implementing procedures and provide the frequency of the activities. |
| The TVA response to GL 89-13 Recommended Program C (fouling or clogging of infrequently used cooling loops) provided an engineering evaluation for not flushing dead leg piping and stated that the material condition of dead leg piping would be monitored by nondestructive examination (UT wall thickness checks) under the SQN raw water fouling and corrosion control program. TVA currently uses UT (under the PM program) to check for fouling inside of dead leg piping off of the 24 ERCW headers to spool pieces providing flood mode cooling to hot sample coolers and the Spent Fuel Pit Cooling system heat exchangers and makeup water to CCS surge tanks A/B. Silt/clams have been detected in the past PM performances and corrective actions taken to address the findings. These UT flow blockage PMs are not credited in the GL 89-13 Service Water System program for managing fouling of these dead legs. In a draft LR RAI to the SQN LR Project, on 6/18/14, the NRC has questioned the method by which fouling/debris in dead leg piping is managed under the GL 89-13 Service Water Program. The NRC has also questioned the adequacy of the demonstration documentation of the UT pipe blockage detection method used to detect silt/clams/debris inside dead leg/stagnant piping. Corporate/SQN 89-13 Program Owners (and Licensing) have been notified. Issues that this PER need to address: (1) Re-evaluate the 89-13 September 22, 1995, SQN letter to the NRC (S64950922800), SQN GL 89-13 response in regard to managing fouling/silt/clams/debris in ERCW dead leg piping. Based on this re-evaluation, supplement the existing GL 89-13 program to include additional methods such as flow tests/flushes, radiograph (RT) or a demonstrated UT method to supplement the current GL 89-13 credited methods. Document the frequency of the 89-13 flow blockage inspection activities in this PER. (2) Describe how the operating experience information obtained through the UT inspections (for fouling/silt/clams/debris in ERCW and filled Firewater System dead leg piping) are accounted for in activities credited by the Service Water Integrity LR AMP for SQN. | | : 2) For the period of extended operation, describe how the operating experience information obtained through the UT inspections are accounted for in activities credited by the Service Water Integrity program. |
| (3) Provide effectiveness demonstration documentation (analysis, white paper, critical thinking, etc.,) for the UT method for detecting pipe fouling/blockage/silt/debris currently used under the PM program. | | : 3) For the period of extended operation, a) describe how system function will be verified if UT inspections detect debris, and b) provide the programmatic constraints to ensure that UT inspections will not be credited as part of the Service Water Integrity Program, unless the technique has been demonstrated to effectively identify the amount and type of debris. |
| - 4 - (4) If the UT method for detecting pipe fouling/blockage/silt/debris has been demonstrated reliable/credible/acceptable in #3, evaluate crediting this methodology for the Service Water (ERCW) Integrity LR AMP for SQN. (5) This PER shall be completed prior to June 1, 2016.
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| SUBJECT: SUMMARY OF TELEPHONE CONFERENCE CALL HELD ON JUNE 19, 2014, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND TENNESSEE VALLEY AUTHORITY, CONCERNING REQUESTS FOR ADDITIONAL INFORMATION PERTAINING TO THE SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC. NOS. MF0481 AND MF0482). DISTRIBUTION: HARD COPY: DLR RF E-MAIL: PUBLIC RidsNrrDlr Resource RidsNrrDlrRpb1 Resource RidsNrrDlrRpb2 Resource RidsNrrDlrRerb Resource RidsNrrDlrRarb Resource RidsNrrDlrRasb Resource RidsNrrPMSequoyah Resource beth.mizuno@nrc.gov brian.harris@nrc.gov john.pelchat@nrc.gov gena.woodruff@nrc.gov siva.lingam@nrc.gov wesley.deschaine@nrc.gov galen.smith@nrc.gov scott.shaeffer@nrc.gov jeffrey.hamman@nrc.gov craig.kontz@nrc.gov caudle.julian@nrc.gov generette.lloyd@epa.gov gmadkins@tva.gov clwilson@tva.gov hlee0@tva.gov dllundy@tva.gov | | PER 900557 GL 89-13 Service Water - Managing Fouling in Dead Legs In the TVA SQN 89-13 letter to the NRC dated September 22, 1995 (S64950922800), SQN provided a revised GL 89-13 Service Water System program and status update. |
| }} | | The TVA response to GL 89-13 Recommended Program C (fouling or clogging of infrequently used cooling loops) provided an engineering evaluation for not flushing dead leg piping and stated that the material condition of dead leg piping would be monitored by nondestructive examination (UT wall thickness checks) under the SQN raw water fouling and corrosion control program. |
| | TVA currently uses UT (under the PM program) to check for fouling inside of dead leg piping off of the 24 ERCW headers to spool pieces providing flood mode cooling to hot sample coolers and the Spent Fuel Pit Cooling system heat exchangers and makeup water to CCS surge tanks A/B. Silt/clams have been detected in the past PM performances and corrective actions taken to address the findings. These UT flow blockage PMs are not credited in the GL 89-13 Service Water System program for managing fouling of these dead legs. |
| | In a draft LR RAI to the SQN LR Project, on 6/18/14, the NRC has questioned the method by which fouling/debris in dead leg piping is managed under the GL 89-13 Service Water Program. The NRC has also questioned the adequacy of the demonstration documentation of the UT pipe blockage detection method used to detect silt/clams/debris inside dead leg/stagnant piping. |
| | Corporate/SQN 89-13 Program Owners (and Licensing) have been notified. |
| | Issues that this PER need to address: |
| | (1) Re-evaluate the 89-13 September 22, 1995, SQN letter to the NRC (S64950922800), SQN GL 89-13 response in regard to managing fouling/silt/clams/debris in ERCW dead leg piping. Based on this re-evaluation, supplement the existing GL 89-13 program to include additional methods such as flow tests/flushes, radiograph (RT) or a demonstrated UT method to supplement the current GL 89-13 credited methods. Document the frequency of the 89-13 flow blockage inspection activities in this PER. |
| | (2) Describe how the operating experience information obtained through the UT inspections (for fouling/silt/clams/debris in ERCW and filled Firewater System dead leg piping) are accounted for in activities credited by the Service Water Integrity LR AMP for SQN. |
| | (3) Provide effectiveness demonstration documentation (analysis, white paper, critical thinking, etc.,) for the UT method for detecting pipe fouling/blockage/silt/debris currently used under the PM program. |
| | |
| | (4) If the UT method for detecting pipe fouling/blockage/silt/debris has been demonstrated reliable/credible/acceptable in #3, evaluate crediting this methodology for the Service Water (ERCW) Integrity LR AMP for SQN. |
| | (5) This PER shall be completed prior to June 1, 2016. |
| | |
| | ==SUBJECT:== |
| | |
| | ==SUMMARY== |
| | OF TELEPHONE CONFERENCE CALL HELD ON JUNE 19, 2014, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND TENNESSEE VALLEY AUTHORITY, CONCERNING REQUESTS FOR ADDITIONAL INFORMATION PERTAINING TO THE SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC. |
| | NOS. MF0481 AND MF0482). |
| | DISTRIBUTION: |
| | HARD COPY: |
| | DLR RF E-MAIL: |
| | PUBLIC RidsNrrDlr Resource RidsNrrDlrRpb1 Resource RidsNrrDlrRpb2 Resource RidsNrrDlrRerb Resource RidsNrrDlrRarb Resource RidsNrrDlrRasb Resource RidsNrrPMSequoyah Resource beth.mizuno@nrc.gov brian.harris@nrc.gov john.pelchat@nrc.gov gena.woodruff@nrc.gov siva.lingam@nrc.gov wesley.deschaine@nrc.gov galen.smith@nrc.gov scott.shaeffer@nrc.gov jeffrey.hamman@nrc.gov craig.kontz@nrc.gov caudle.julian@nrc.gov generette.lloyd@epa.gov gmadkins@tva.gov clwilson@tva.gov hlee0@tva.gov dllundy@tva.gov}} |
Letter Sequence RAI |
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Results
Other: CNL-15-095, Revision to the Reactor Pressure Vessel Surveillance Capsule Withdrawal Schedule for License Renewal, CNL-15-164, Second Annual Update, License Renewal Application, CNL-15-178, License Renewal Application - Clarifications (TAC Nos. MF0481 and MF0482), ML13032A251, ML13057A873, ML13067A201, ML13141A320, ML15236A067
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MONTHYEARML13024A0042013-01-0707 January 2013 Transmittal of License Renewal Application Project stage: Request ML13032A2512013-01-10010 January 2013 Reactor Pressure Vessel Surveillance Capsule Withdrawal Schedule Revision Due to License Renewal Amendment Project stage: Other ML13057A8732013-03-0808 March 2013 Plan for the Scoping and Screening Regulatory Audit Regarding the Sequoyah Nuclear Plant, Unit 1 and 2, LRA Review Project stage: Other ML13067A2012013-03-11011 March 2013 Plan for the Aging Management Program Regulatory Audit Regarding the Sequoyah Nuclear Plant, Units 1 and 2 License Renewal Application Review (TAC Nos. MF0481 and MF0482) Project stage: Other ML13109A5152013-04-26026 April 2013 Requests for Additional Information for the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application (TAC Nos. MF0481 and MF0482) Project stage: RAI ML13122A3402013-05-0808 May 2013 RAI for the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application (TAC Nos. MF0481 and MF0482) Project stage: RAI ML13119A0972013-05-21021 May 2013 Summary of Telephone Conference Call Held on April 22, 2013 Between the U.S. Nuclear Regulatory Commission and Tva,Concerning Requests for Additional Information Pertaining to the Sequoyah Nuclear Plant, License Renewal Application Project stage: RAI ML13142A3322013-05-21021 May 2013 Requests for Additional Information for the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application (TAC Nos. MF0481 and MF0482) Project stage: RAI ML13128A5192013-05-31031 May 2013 Request for Additional Information for the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application Project stage: RAI ML13134A2012013-06-0505 June 2013 RAI for the Review of the Sequoyah Nuclear Plant, Units 1 and 2, LRA Project stage: RAI ML13163A4422013-06-0707 June 2013 Response to NRC Request for Additional Information Regarding the Scoping and Screening Methodology Review of the License Renewal Application, Set 3 Project stage: Response to RAI ML13144A7122013-06-11011 June 2013 Requests for Additional Information for the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application (Tac Nos. MF0481 and MF0482)- Set 6 Project stage: RAI ML13134A3712013-06-13013 June 2013 5/9/2013 Summary of Telephone Conference Call Between the U.S. Nuclear Regulatory Commission and Tennessee Valley Authority, Concerning Requests for Additional Information Pertaining to the Sequoyah Nuclear Plant, Units 1 and 2, License Ren Project stage: RAI ML13141A3202013-06-13013 June 2013 Letter Aging Management Programs Audit Report Regarding the Sequoyah Nuclear Plant, Units 1 and 2 Project stage: Other ML13150A4122013-06-24024 June 2013 Requests for Additional Information for the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application (TAC Nos. MF0481 and MF0482) - Set 8 Project stage: RAI ML13178A2832013-06-25025 June 2013 Response to NRC Request for Additional Information Regarding the Reactor Vessel Internals Review of the License Renewal Application, Set 1 Project stage: Response to RAI ML13158A0162013-06-25025 June 2013 Requests for Additional Information for the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application (TAC Nos. MF0481 and MF0482) Set 9 Project stage: RAI ML13190A2762013-07-0101 July 2013 Response to NRC Request for Additional Information Regarding the Review of the License Renewal Application, Set 4 Project stage: Response to RAI ML13192A3302013-07-0303 July 2013 Response to NRC Request for Additional Information Regarding the Review of License Renewal Application, Set 5 (TAC Nos. MF0481 and MF0482) Project stage: Response to RAI ML13204A3992013-07-11011 July 2013 Response to NRC Request for Additional Information Re Reactor Vessel Internals Review of the License Renewal Application, Set 6 Project stage: Response to RAI ML13213A0262013-07-25025 July 2013 Response to NRC Request for Additional Information Regarding the Review of License Renewal Application, Set 4/Buried Piping, Set 8, and Set 9 (TAC MF0481 and MF0482) Project stage: Response to RAI ML13213A0272013-07-29029 July 2013 Response to NRC Request for Additional Information Regarding the Review of License Renewal Application, Set 7 (TAC Nos. MF0481 and MF0482) Project stage: Response to RAI ML13213A0142013-07-30030 July 2013 Revised Response to NRC Request for Additional Information Regarding the Review of the License Renewal Application, Sets 1 and 3 (TAC MF0481 and MF0482) Project stage: Response to RAI ML13171A0362013-08-0101 August 2013 Summary of Telephone Conference Call Held on June 13, 2013, Between the NRC and Tennessee Valley Authority, Concerning RAI Pertaining to the Sequoyah Nuclear Plant, Units 1 and 2, LRA Project stage: RAI ML13204A2572013-08-0202 August 2013 Requests for Additional Information for the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application (TAC Nos. MF0481 and MF0482) - Set 10 Project stage: RAI ML13225A3872013-08-0909 August 2013 Response to NRC Request for Additional Information Regarding the Review of the Sequoyah Nuclear Plant, Units I and 2, License Renewal Application, Sets 1, 6, 7, and Revised Responses for 1.4-2, 1.4-3 and 1.4-4 (TAC Nos. MF0481 and MF0482) Project stage: Response to RAI ML13224A1262013-08-22022 August 2013 RAI for Review of Sequoyah, Units 1 & 2 License Renewal Application - Set 11 Project stage: RAI ML13238A2442013-08-30030 August 2013 RAI Set 12 Project stage: RAI ML13252A0362013-09-0303 September 2013 Response to NRC Request for Additional Information Regarding the Review of the License Renewal Application, Set 10 (30-day), B.1.9-1, B.1.4-4 Revised RAI Responses and Revision to LRA Page 2.4-44 (TAC Nos. MF0481 and MF0482) Project stage: Response to RAI ML13226A3712013-09-10010 September 2013 Summary of Telephone Conference Call Held on August 1, 2013, Between the U.S. Nuclear Regulatory Commission and Tennessee Valley Authority, Concerning Requests for Additional Information Pertaining to the Sequoyah Nuclear Plant, Units 1 Project stage: RAI ML13267A1592013-09-20020 September 2013 Response to NRC Request for Additional Information Regarding the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application, Set 11 (30-day), and Revised RAI Responses for B.1.14-1a, 2.5. Project stage: Response to RAI ML13247A4272013-09-23023 September 2013 Summary of Telephone Conference Call Held on August 19, 2013, Between the NRC and Tennessee Valley Authority, Concerning RAI Pertaining to the Sequoyah Nuclear Plant, Units 1 and 2, LRA Project stage: RAI ML13263A3382013-09-26026 September 2013 RAI Set 14 Project stage: RAI ML13268A4922013-09-27027 September 2013 RAI Set 15 Project stage: RAI ML13276A0182013-09-30030 September 2013 Response to NRC Request for Additional Information Regarding the Review of the License Renewal Application, Sets 10 (B.1.23-2a), 11 (4.1-8a), and 12 (30-day) Project stage: Response to RAI CNL-13-103, Response to NRC Request for Additional Information Regarding the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application, Sets 8 (B.1.33-1), 10 (3.0.3-1 Request 1), 12 (B.1.23-2b), 13 (30-day), 14 (B.0.4-1a)2013-10-17017 October 2013 Response to NRC Request for Additional Information Regarding the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application, Sets 8 (B.1.33-1), 10 (3.0.3-1 Request 1), 12 (B.1.23-2b), 13 (30-day), 14 (B.0.4-1a) Project stage: Response to RAI ML13282A3302013-10-18018 October 2013 RAI Set 16 Project stage: RAI CNL-13-104, Response to NRC Request for Additional Information Regarding the Review of License Renewal Application, Sets 11 (B.1.40-4a, B.1.25.1a), 13 (B.1.41-4a),14 (3.5.1-57, 3.5.1-87)2013-10-21021 October 2013 Response to NRC Request for Additional Information Regarding the Review of License Renewal Application, Sets 11 (B.1.40-4a, B.1.25.1a), 13 (B.1.41-4a),14 (3.5.1-57, 3.5.1-87) Project stage: Response to RAI CNL-13-105, Response to NRC Request for Additional Information Regarding Review of the License Renewal Application, Sets 10 (3.0.3-1, Requests 3, 4, 6), 12 (B.1.6-1b, B.1.6-2b), 16 (4.3.1-8a)2013-11-0404 November 2013 Response to NRC Request for Additional Information Regarding Review of the License Renewal Application, Sets 10 (3.0.3-1, Requests 3, 4, 6), 12 (B.1.6-1b, B.1.6-2b), 16 (4.3.1-8a) Project stage: Response to RAI CNL-13-106, Response to NRC Request for Additional Information Regarding the Review of the Sequoyah Nuclear Plant, Units I and 2, License Renewal Application, Sets 13 (B.1.34-5a), 15 (4.2-1a), 16 (B.1.23-2c), 17 (B.1.23-2d), LRA Sections A.1.34 and B2013-11-15015 November 2013 Response to NRC Request for Additional Information Regarding the Review of the Sequoyah Nuclear Plant, Units I and 2, License Renewal Application, Sets 13 (B.1.34-5a), 15 (4.2-1a), 16 (B.1.23-2c), 17 (B.1.23-2d), LRA Sections A.1.34 and B.1 Project stage: Response to RAI ML13323A0972013-12-0606 December 2013 RAI Set 18 Project stage: RAI CNL-13-130, Response to NRC Request for Additional Information Regarding the Review of the License Renewal Application, B.1.41-4b, 3.0.3-1 (Requests La, 3a, 4a, 6a), B.1.23-2e, 3.4.2.1.1-2a, Tables (3.4.1, 3.4.2-3-5, 3.3.1..2013-12-16016 December 2013 Response to NRC Request for Additional Information Regarding the Review of the License Renewal Application, B.1.41-4b, 3.0.3-1 (Requests La, 3a, 4a, 6a), B.1.23-2e, 3.4.2.1.1-2a, Tables (3.4.1, 3.4.2-3-5, 3.3.1.. Project stage: Response to RAI ML13353A5382013-12-23023 December 2013 RAI Set 19 Project stage: RAI ML13338A3332014-01-0808 January 2014 Summary of Telephone Conference Call Held on August 22, 2013, Between the U.S. Nuclear Regulatory Commission and Tennessee Valley Authority, Concerning Requests for Additional Information Pertaining to the Sequoyah Nuclear Plant, Units 1 an Project stage: RAI CNL-14-021, Response to Request for Clarification to NRC Request for Additional Information Re Review of License Renewal Application, LRA B.1.31, B.1.25.1b, B.1.34-8a, B.1.34-9A, LRA Annual Update (TAC MF0481 & MF0482)2014-03-0303 March 2014 Response to Request for Clarification to NRC Request for Additional Information Re Review of License Renewal Application, LRA B.1.31, B.1.25.1b, B.1.34-8a, B.1.34-9A, LRA Annual Update (TAC MF0481 & MF0482) Project stage: Supplement ML14059A3472014-03-0404 March 2014 Schedule Revision for the Review of the Sequoyah Nuclear Plant License Renewal Application (TAC Nos. MF0481 and MF0482) Project stage: Approval ML14063A5422014-03-0404 March 2014 TVA Response to Request for Clarification to NRC Request for Additional Information Regarding the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application, LRA B.1.31, B.1.25.1 B, B.1.34-Sa, B.1.34-9a, LRA Annual ... Project stage: Supplement ML14064A4732014-03-12012 March 2014 Request for Additional Information for the Review of the Sequoyah Nuclear Plant, Units 1 and 2, LRA - Set 20 Project stage: RAI ML14094A2942014-04-11011 April 2014 Project Manager Change for the Safety Review of the Sequoyah Nuclear Plant, Units 1 & 2, License Renewal Application (TAC Nos. MF0481 & MF0482) Project stage: Approval CNL-14-052, TVA Response to NRC Request for Additional Information Regarding the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application: RAIs B.1.13-4 and 3.0.3-1-3c, Commitment 9.G, and 2013 LRA Annual Update (TAC Nos. MF042014-04-22022 April 2014 TVA Response to NRC Request for Additional Information Regarding the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application: RAIs B.1.13-4 and 3.0.3-1-3c, Commitment 9.G, and 2013 LRA Annual Update (TAC Nos. MF0481 Project stage: Response to RAI 2013-07-01
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Category:Meeting Summary
MONTHYEARML24262A0602024-09-23023 September 2024 Summary of August 19, 2024, Meeting with Tennessee Valley Authority Regarding a Proposed Supplement to the Tennessee Valley Authority Nuclear Quality Assurance Plan ML24228A2652024-08-20020 August 2024 Summary of Public Pre-Submittal Meeting with Tennessee Valley Authority Regarding a Future Sequoyah Nuclear Plant and Watts Bar Nuclear Plant LAR Related to TS 3.5.2. ECCS - Operating ML24221A0132024-08-19019 August 2024 July 10, 2024, Summary of Meeting with Tennessee Valley Authority Regarding a Proposed Change to the Tennessee Valley Authority Nuclear Quality Assurance Plan ML24218A2182024-08-15015 August 2024 Summary of July 16, 2024, Public Preapplication Meeting with Tennessee Valley Authority Regarding a Future Sequoyah Nuclear Plant LAR Related to Containment Penetrations and Fuel Handling ML24136A2242024-05-15015 May 2024 1B EDG NRC Regulatory Conference Meeting Summary May 2, 2024 ML24102A1212024-04-18018 April 2024 Summary of Conference Call with Tennessee Valley Authority Regarding Sequoyah Nuclear Plant, Unit 1 Spring 2024 Steam Generator Tube Inspections ML24089A0712024-04-0101 April 2024 3/20/24 & 3/27/24 2023 TVA Public Annual Assessment Meeting Summary ML24082A2532024-03-26026 March 2024 Summary of March 18, 2024, Public Preapplication Meeting with Tennessee Valley Authority Regarding a Future License Amendment Request Related to Fuel Handling and Fuel Decay Time ML24057A3792024-03-0808 March 2024 Summary of Public Preapplication Meeting with Tennessee Valley Authority Regarding a Future License Amendment Request Related to Fuel Handling and Fuel Decay Time ML24065A0262024-03-0101 March 2024 LAR Pre-Application Meeting TS 3.9.8 (Decay Time) and FHA Dose Analysis Meteorological Monitoring and Dispersion Modeling Topics ML24044A0372024-02-15015 February 2024 February 8, 2024, Summary of Public Preapplication Meeting with Tennessee Valley Authority Regarding a Future License Amendment Request Related to Technical Specification Surveillance Requirement 3.1.1.8 ML24008A1592024-01-18018 January 2024 Summary of December 13, 2023, Meeting with Tennessee Valley Authority Regarding a Proposed Change to the Tennessee Valley Authority Nuclear Quality Assurance Plan ML23304A0682023-11-0606 November 2023 Summary of October 24, 2023, Public Mtg W/Tennessee Valley Authority Regarding Proposed License Amendment Request for Watts Bar Nuclear Plant, Units 1 and 2, and Sequoyah Nuclear Plant, Units 1 and 2 to Revise Function 5, Turbine Trip and F ML23142A2132023-05-22022 May 2023 Public Meeting Summary - 2022 Annual Assessment Meetings for Browns Ferry, Sequoyah and Watts Bar Nuclear Plants ML22312A3522022-12-0101 December 2022 Revised - Summary of Regulatory Audit for Alternative Request RV-02 ML22207B8302022-07-28028 July 2022 Summary of July 20, 2022, Observation Public Meeting with the Tennessee Valley Authority to Discuss Planned Alternative Request RP-12 to ASME OM Code Testing for the 1B-B Centrifugal Charging Pump at Sequoyah Nuclear Plant, Unit 1 ML22168A1642022-06-27027 June 2022 Summary of June 9, 2022, Meeting with TVA Regarding a Proposed License Amendment Request Related to Low Temperature Overpressure System and Cold Overpressure Mitigation System for Sequoyah and Watts Bar Nuclear Plants ML22109A0042022-04-20020 April 2022 Summary of Meeting with Tennessee Valley Authority Regarding a Proposed Alternative Request Related to Testing of the Motor-Driven Auxiliary Feedwater Pumps at Sequoyah and Watts Bar Nuclear Plants ML22108A1842022-04-18018 April 2022 TVA 2021 Annual Assessment Public Meeting Summary ML22048B7852022-03-0202 March 2022 Summary of February 16, 2022, Public Preapplication Meeting with Tennessee Valley Authority Regarding a Future Submittal of a Request for an Alternative to Requirements for Addressing Pressure Isolation Valve Leakage ML21313A3482021-11-18018 November 2021 Summary of Public Preapplication Meeting with Tennessee Valley Authority Regarding a Future Submittal of a License Amendment Request Regarding Seismic and Fire Probabilistic Risk Assessment (PRA) Modifications to 10 CFR 50.69 ML21291A0092021-11-0303 November 2021 Tennessee Valley Authority Fleet - Summary of October 13, 2021, Teleconference with Tennessee Valley Authority to Discuss Planned License Amendment Requests Related to the Emergency Action Level Scheme ML21265A5142021-10-12012 October 2021 Summary of September 15, 2021, Public Preapplication Meeting with Tennessee Valley Authority Regarding a Future Submittal of a License Amendment Request Regarding Elimination of the High Negative Flux Rate Trip ML21218A1472021-08-11011 August 2021 August 5, 2021 N-769 Relief Pre-Submittal Meeting Summary ML21165A1482021-06-30030 June 2021 Summary of Closed Meeting with Tennessee Valley Authority to Discuss Planned Requests for Exemption from Certain Requirements of 10 CFR Part 37 ML21152A1252021-06-0202 June 2021 Summary of Verbal Authorization of Alternative Request RP-10 for the 1B-B Motor Driven Auxiliary Feedwater Pump ML21137A0022021-05-17017 May 2021 Public Meeting Summary - Browns Ferry, Sequoyah and Watts Bar Nuclear Plants, Docket Nos. 50-259, 50-260, 50-296, 50-327, 50-328, 50-390, and 50-391, Meeting Number 20210392 ML21112A3262021-04-30030 April 2021 Summary of April 21, 2021, Teleconference with Tennessee Valley Authority to Discuss a Planned License Amendment Request for Sequoyah Nuclear Plant, Units 1 and 2 ML21067A2132021-03-23023 March 2021 Summary of March 2, 2021, Teleconference with Tennessee Valley Authority to Discuss a Planned Alternative Request ML20357A0092021-01-19019 January 2021 Summary of December 17, 2020, Teleconference with Tennessee Valley Authority Regarding Planned License Amendment Request Related to Use of Alternate Probability of Detection at Watts Bar Nuclear Plant, Unit 2 ML20293A0802020-10-28028 October 2020 Summary of October 13, 2020, Closed Meeting with TVA on Responses to Requests for Additional Information Updated Final Safety Analysis Report Hydrologic Analysis License Amendment Request ML20175A8012020-08-11011 August 2020 Summary of June 23, 2020, Public Meeting with Tennessee Valley Authority to Discuss a Planned License Amendment ML20203M2292020-08-11011 August 2020 July 16, 2020, Summary of Partially Closed Meeting with Tennessee Valley Authority to Discuss Responses to Requests for Additional Information Regarding Updated Final Safety Analysis Report Hydrologic Analysis License Amendment Request ML20197A2722020-07-15015 July 2020 2020 Beaver Valley, Calvert Cliffs, Limerick Peach Bottom, Susquehanna Annual Assessment Webinar Summary ML20108E9092020-06-22022 June 2020 Summary of April 16, 2020, Virtual Meeting with Tennessee Valley Authority to Discuss Submittal of an Exigent License Amendment Request Operate One Cycle with One Control Rod Removed ML20127H8412020-05-0606 May 2020 Public Meeting Summary - Browns Ferry, Sequoyah and Watts Bar Nuclear Plant, Meeting No. 20200384 ML20055C2312020-03-0505 March 2020 Summary of February 20, 2020 Pre-submittal Meeting - Operation Without Control Rod H8 and Fuel Transition ML20035C8192020-02-12012 February 2020 Summary of January 27, 2020, Public Meeting with Tennessee Valley Authority Regarding the Future Submittal of Steam Generator Tube Inspection Related License Amendment Request ML19325C7142019-12-0202 December 2019 November 15,2019, Summary of Conference Call with Tennessee Valley Authority to Discuss Submittal of Exigent License Request (EPID L-2019-LLA-0239) for Sequoyah Nuclear Plant, Unit 1 ML19142A2772019-05-21021 May 2019 Summary of Public Meeting - Sequoyah Nuclear Plant ML19038A4692019-02-28028 February 2019 Summary of January 31, 2019 Meeting with Tennessee Valley Authority Regarding Presubmittal Licensing Actions - ML18344A5672019-01-15015 January 2019 November 14, 2018, Summary of Public Meeting with Tennessee Valley Authority Regarding Presubmittal Licensing Actions - Sequoyah Nuclear Plant, Units 1 and 2 ML18164A3092018-06-13013 June 2018 June 6, 2018 Summary of Public Meeting - Sequoyah Nuclear Plant - Docket Nos. 50-327 and 50-328 ML17278A8972017-10-17017 October 2017 Summary of Meeting with TVA Regarding Hydrology-Related Licensing Actions, Browns Ferry, Units 1, 2, and 3, Sequoyah Nuclear, Units 1 and 2 and Watts Bar Nuclear Plant, Units 1 and 2(EPID L2016-TOP-0011; CAC Nos. MF8391-MF8397 ML17227A5142017-09-0101 September 2017 Summary of August 1, 2017, Pre-Submittal Public Meeting with TVA Regarding a Class 1E Unbalanced Voltage Relay Licensing Amendment Request for Browns Ferry Nuclear Plant, Sequoyah Nuclear Plant, and Watts Bar Nuclear Plant ML16280A2912016-10-31031 October 2016 September 23, 2016, Summary of Public Meeting with TVA Regarding Hydrology-Related Licensing Actions, Browns Ferry Nuclear Plant, Units 1, 2, and 3, Sequoyah Nuclear Plant, Units 1 & 2 and Watts Bar Nuclear Plant, Units 1 & 2 (CAC Nos. MF83 ML16117A5512016-05-0202 May 2016 04/01/2016 Sequoyah Nuclear Plant, Units 1 and 2 - Summary Of Public Meeting With TVA Regarding Hydrology-Related Licensing Actions (CAC Nos. ME9238 And ME9239) ML16035A4802016-02-12012 February 2016 Jsc Meeting Summary Attachment ML16029A3512016-02-0505 February 2016 Summary of January 19, 2016, Pre-Submittal Meeting with Tennessee Valley Authority Regarding Technical Specifications for Sequoyah Nuclear Plant, Units 1 and 2 ML15233A0352015-09-22022 September 2015 July 20, 2015, Summary of Telephone Conference Call Held Between NRC and TVA Concerning RAI, Set 25 Pertaining to the Sequoyah Units 1 and 2 License Renewal Application (TAC Nos. MF0481 and MF0482) 2024-09-23
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML24152A1542024-05-31031 May 2024 Document Request for Sequoyah Nuclear Plant - Radiation Protection Inspection - Inspection Report 2024-03 ML24116A2012024-04-17017 April 2024 Nrctva ISFSI CBS (RFI) ML24045A1002024-02-13013 February 2024 NRR E-mail Capture - Request for Additional Information Related to the Sequoyah Exemption Request for the 10 CFR Part 73 Enhanced Weapons Rule ML23307A0822023-11-0808 November 2023 Request for Additional Information August 4, 2022, Exemption Request for Deviating from the Conditions of Certificate of Compliance No. 1032, Amendment No. 3, Related to Sequoyah Nuclear Plant Independent Spent Fuel Storage Installation ML23307A0832023-11-0808 November 2023 Enclosure - Request for Additional Information HDI-Sequoyah NDE Exemption Request 10-30-2023 ML23062A5942023-02-27027 February 2023 Enclosure - NRC SQN Exemption Rsi Response Staff Follow Up Questions ML23062A5952023-02-27027 February 2023 Staff follow-up Questions to Tva'S 12/19/2022 Response of the Staff'S Rsi Regarding 08/04/2022 SQN Exemption Request ML22343A0692022-12-0808 December 2022 NRR E-mail Capture - Request for Additional Information - Sequoyah Nuclear Plant, Units 1 and 2, and Watts Bar Nuclear Plant, Units 1 and 2, License Amendment Request to Revise Technical Specification 3.4.12 (L-2022-LLA-0103) ML22257A0622022-09-14014 September 2022 Requalification Program Inspection - Sequoyah Nuclear Plant ML22255A0842022-09-0909 September 2022 Document Request for Sequoyah Nuclear Plant - Radiation Protection Inspection - Inspection Report 2022-04 ML22227A0272022-08-11011 August 2022 NRR E-mail Capture - Request for Additional Information Related to Alternative Requests RP-11 for Sequoyah Nuclear Plant, Units 1 and 2, and IST-RR-9 for Watts Bar Nuclear Plant, Units 1 and 2 ML22214A1582022-08-0202 August 2022 NRR E-mail Capture - Request for Additional Information for Sequoyah Units 1 and 2 License Amendment Request for Fire and Seismic PRA Modification to 10 CFR 50.69 (L-2022-LLA-0033) ML22151A0102022-05-27027 May 2022 NRR E-mail Capture - Revised Request for Additional Information Re Sequoyah Nuclear Plant Alternative Request RV-02 ML22146A3322022-05-26026 May 2022 NRR E-mail Capture - Request for Additional Information Related to Sequoyah Nuclear Plant'S LAR to Adopt TSTF-505 ML22151A0092022-05-26026 May 2022 NRR E-mail Capture - Request for Additional Information Re Sequoyah Nuclear Plant Alternative Request RV-02 ML22144A1002022-05-12012 May 2022 NRR E-mail Capture - Request for Additional Information Related to Tva'S Request to Revised the TVA Plants' Radiological Emergency Plans ML21237A4952021-08-25025 August 2021 Document Request for Sequoyah Nuclear Plant - Radiation Protection Inspection - Inspection Report 2021-04 ML21160A0352021-06-0303 June 2021 Document Request for Sequoyah Nuclear Plant - Radiation Protection Inspection - Inspection Report 2021-03 ML21095A0482021-04-0505 April 2021 NRR E-mail Capture - Sequoyah Nuclear Plant, Units 1 and 2 - Request for Additional Information Regarding Request to Transition to Westinghouse Fuel ML21092A0972021-04-0202 April 2021 Notification of Inspection and Request for Information for NRC Problem Identification and Resolution Inspection ML20259A4782020-09-15015 September 2020 Emergency Preparedness Program Inspection Request for Information ML20261H4172020-09-14014 September 2020 NRR E-mail Capture - Sequoyah Nuclear Plant, Units 1 and 2 - Request for Additional Information Regarding Hydrologic UFSAR Update ML20261H4162020-09-0202 September 2020 NRR E-mail Capture - Draft Request for Additional Information - Sequoyah Nuclear Plant, Units 1 and 2, Request to Revise UFSAR Hydrologic Analysis ML20189A2112020-07-0101 July 2020 Request for Additional Information Regarding Hydrologic UFSAR Update ML20106F1042020-04-14014 April 2020 Request for Additional Information Regarding the Hydrologic Analysis LAR ML20161A3902020-04-0909 April 2020 Request for Supporting Information for the Sequoyah SPRA Audit Review - Follow-up to Plant Response Question 5 ML20098D8612020-04-0707 April 2020 Notification of an NRC Fire Protection Team Inspection (FPTI) (NRC Inspection Report 05000327/2020012 and 05000328/2020012) and Request for Information) ML20036E2842020-02-0505 February 2020 20200123 - Sequoyah Radiation Safety Inspection Document Request Letter ML19323D7562019-11-18018 November 2019 Nrc'S Request for Additional Information - Exigent Amendment ML19235A0992019-08-22022 August 2019 Emergency Preparedness Program Inspection Request for Information ML19162A2462019-06-11011 June 2019 RP Inspection Document Request 2019-03 ML19149A6222019-05-29029 May 2019 NRR E-mail Capture - Request for Additional Information - Sequoyah Nuclear Plant, Units 1 and 2, Request for Alternative to 18-ISI-1 EPID: L-2019-LLR-0006 ML19148A7912019-05-28028 May 2019 NRR E-mail Capture - Sequoyah Nuclear Plant and Watts Bar Nuclear Plant - Final Request for Additional Information Related to Request for Alternative to OM Code Requirements ML19015A4192019-01-15015 January 2019 NRR E-mail Capture - RAI - Sequoyah Nuclear Plant, Units 1 and 2, LAR to Adopt 10 CFR50.69 Risk-informed SSC ML18344A0752018-12-10010 December 2018 NRR E-mail Capture - Request for Additional Information - Sequoyah 1 and 2, Request to Modify Essential Raw Cooling Water Motor Control Center Breakers and to Revise Updated Final Analysis Report (SQN-TS-17-04) ML18296A0022018-10-22022 October 2018 NRR E-mail Capture - Additional Information Needs - Sequoyah Units 1 and 2, Request to Modify Essential Raw Cooling Water Motor Control Center Breakers Revise Updated Final Analysis Report (SQN-TS-17-04) ML18283B0592018-10-10010 October 2018 NRR E-mail Capture - Additional Information Needs Identified During Audit - Sequoyah 1 and 2, Request to Modify Essential Raw Cooling Water Motor Control Center Breakers Revise Updated Final Analysis Report (SQN-TS-17-04) ML18283A6232018-09-25025 September 2018 04 RP Inspection Document Request ML18233A1942018-08-21021 August 2018 NRR E-mail Capture - Additional Information Needs Identified - Sequoyah 1 and 2, Request to Modify Essential Raw Cooling Water Motor Control Center Breakers and to Revise Updated Final Analysis Report (SQN-TS-17-04) ML18138A1102018-05-17017 May 2018 Enclosurequest for Additional Information (Letter to E. D. Schrull Request for Additional Information Regarding Tennessee Valley Authority'S Decommissioning Funding Plan Update for Browns Ferry and Sequoyah Isfsis) ML18057A6372018-02-23023 February 2018 NRR E-mail Capture - Request for Additional Information Related to TVA Fleet Topical Report TVA-NPG-AWA16 - EPIC: L-2016-TOP-0011) ML17191A2062017-07-0606 July 2017 NRR E-mail Capture - Sequoyah Nuclear Station, Unit 1 & 2 - Request for Additional Information Related to LAR for Technical Specification 3.8.1.17 Note Modification (CAC Nos. MF9398 and MF9399) ML17150A0792017-05-23023 May 2017 NRR E-mail Capture - Request for Additional Information Related to TVA Fleet LAR for EAL Change to Adopt NEI-99-01 Rev.6 (CAC Nos. MF9054 - MF9060) ML17112A0402017-04-20020 April 2017 NRR E-mail Capture - Sequoyah Nuclear Station, Unit 1 & 2 - Request for Additional Information Related to LAR for Technical Specification 3.8.1, AC SOURCES-OPERATING ML17004A0612017-01-0404 January 2017 Notification of NRC Triennial Fire Protection Inspection (Team)(Report 05000327/2017007 and 05000328/2017007) ML15194A3882015-07-13013 July 2015 Request for Additional Information Related to LAR to Revise Ice Condenser Ice Mas Tech Spec ML15175A2912015-06-24024 June 2015 E-mail Re. Request for Additional Information RR RP-07 ML15159B1642015-06-22022 June 2015 Requests for Additional Information for the Review of the Sequoyah Nuclear Plant, Units 1 and 2, License Renewal Application-Set 25 (TAC Nos. MF0481 and MF0482) ML15050A0962015-02-19019 February 2015 E-mail Re. Request for Additional Information Related to LAR to Ice Condendser Inc Mass Tech Spec ML15042A4702015-02-11011 February 2015 E-mail Re. Request for Additional Information Related to License Amendment Request to Revise Technical Specification on Ultimate Heat Sink 2024-05-31
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 July 30, 2014 LICENSEE: Tennessee Valley Authority FACILITY: Sequoyah Nuclear Plant, Units 1 and 2
SUBJECT:
SUMMARY
OF TELEPHONE CONFERENCE CALL HELD ON JUNE 19, 2014, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND TENNESSEE VALLEY AUTHORITY, CONCERNING REQUESTS FOR ADDITIONAL INFORMATION PERTAINING TO THE SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC.
NOS. MF0481 AND MF0482).
The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Tennessee Valley Authority held a telephone conference call on June 19, 2014, to discuss and clarify the staffs requests for additional information (RAIs) concerning the Sequoyah Nuclear Plant, Units 1 and 2, license renewal application. The telephone conference call was useful in clarifying the intent of the staffs RAIs. provides a listing of the participants and Enclosure 2 contains a listing of the RAIs discussed with the applicant, including a brief description on the status of the items.
The applicant had an opportunity to comment on this summary.
/RA/
Emmanuel Sayoc, Project Manager Projects Branch 1 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-327 and 50-328
Enclosures:
- 1. List of Participants
- 2. List of Requests for Additional Information cc w/encls: Listserv
ML14174A737 *concurred via email OFFICE LA:DLR* PM:RPB1:DLR PM: RPB1:DLR BC:RPB1:DLR PM:RPB1:DLR NAME YEdmonds ESayoc JDaily Y Diaz-Sanabria ESayoc DATE 7/9/14 7/17/14 7/23/14 7/30/14 7/30/14
TELEPHONE CONFERENCE CALL SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS JUNE 19, 2014 PARTICIPANTS AFFILIATIONS Richard Plasse U.S. Nuclear Regulatory Commission (NRC)
Emmanuel Sayoc NRC William Holston NRC James Gavula NRC Henry Lee Tennessee Valley Authority (TVA)
Dennis Lundy TVA Michael Ryan Henderson TVA Beth Ann Jenkins TVA Jeremy Wayne Mayo TVA Donald G. Sutton TVA ENCLOSURE 1
REQUESTS FOR ADDITIONAL INFORMATION DISCUSSED SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION JUNE 19, 2014 The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Tennessee Valley Authority (TVA) held a telephone conference call on June 19, 2014, to discuss and clarify the following requests for additional information (RAIs) concerning the license renewal application (LRA).
Sequoyah Nuclear Plant, Units 1 and 2 (SQN) draft RAI B.1.38-4, included below, was discussed on June 19, 2014. The requests were clear to TVA. TVA presented a Problem Event Report (PER) number 900557 outlined below, which was discussed by both parties. The PER summarizes the NRCs technical issues around the Ultrasonic Testing (UT) techniques related to the Fire Water and Service Water System aging management programs (AMPs) and TVAs proposal to add commitments to develop, conduct, document, and credit UT technique demonstrations to the AMPs. Proposed commitments are added to the TVA corrective action program (CAP) and will be outlined in TVAs Corporate Nuclear Licensing Letter CNL-14-105 scheduled to be submitted to the NRC on or around July 3, 2014. As such the staff elected to not send the following draft RAIs to the applicant in lieu of the scheduled letter.
RAI B.1.38-4 Use of UT to detect debris in Service Water Integrity program
Background:
In the clarification dated December 16, 2013, to the response for RAI 3.0.3-1 (which related to the staffs questions for the use of UT to detect flow blockage in the Fire Water System program), TVA stated that it had demonstrated the use of UT on the ERCW [essential raw cooling water] system to identify blockage from silt and clams. In a follow-up RAI B.1.13-4 questioning the effectiveness of the UT technique to detect flow blockage, the staff specifically asked TVA to describe the practical demonstration performed on the ERCW system and to describe the results of the field inspections conducted using this UT procedure. By letter dated April 22, 2014, TVA responded to the additional questions in RAI B.1.13-4 and placed a copy of the associated procedure, N-UT-11, Ultrasonic Examination for Detecting and Measuring Fluid Levels in Austenitic and Ferritic Systems, on the Certrec website for NRC review. Regarding the practical demonstration, TVA stated: No demonstrations were formally conducted or documented for this process. Regarding the results of field inspections using this UT procedure, the response stated that TVA at Watts Bar performs clam/silt inspections quarterly using the described technique, and TVA at SQN performs clam/silt inspection on an annual frequency. The response also added: TVA did not perform any demonstration UT field test inspection for flow blockage.
Supplemental information subsequently provided by SQN on June 13, 2014, states that the referenced preventive maintenance (PM) program clam/silt inspections are not credited inspections in the SQN Generic Letter (GL) 89-13 program, and are not credited in the Service Water Integrity AMP. TVA also stated that the UT inspections of selected ERCW stagnant/dead leg piping to detect clams/silt are informal supplemental inspections that are used as an early diagnostic indicator of potential piping blockage in the ERCW stagnant/dead leg piping
On March 3, 2014, TVA also placed inspection documentation for nine UT-detected piping blockages on its Certrec website for the NRC to review. The nine documents spanned the period between 2005 and 2013. The following statement is included in that documentation:
During performance of PM06306166, ultrasonic [testing] showed silt in the dead legs of the ERCW piping from the main header 1A to normally closed valve 1-67-687, Flood Mode Supply to CCS [component cooling system] and from the main supply header 1B to normally closed valve 1-67-544, Emergency Supply to CCS Surge Tank A. UT showed that the water is not being blocked by the silt and if needed the system can still perform its intended function. A WO [work order] is being requested to flush these dead legs and prevent this silt from entering the flood mode system.
Issue:
TVA currently performs aging management activities through its PM program that are not described in the Service Water Integrity AMP. The specific activities are monitoring the stagnant/dead leg portions of the ERCW system for fouling using a UT technique. The results of these activities are used as the basis for taking corrective actions (i.e., system flushing) and for concluding that existing debris in the system would not prevent the system from performing its function. Since these activities result in the same actions as would be taken for a credited activity, and conclusions about system functions are drawn based on information obtained from these activities, they cannot be treated as informal supplemental inspections.
Since TVA has stated that the UT clam/silt inspections are not credited in either the GL 89-13 program or the Service Water Integrity program, it is not clear to the staff what aging management activities for this aging effect are being credited as part of the Service Water Integrity AMP, and how operating experience information, resulting from the UT inspections, is being factored back into the extent and frequency of the activities being credited by the Service Water Integrity AMP.
Request:
- 1) For the period of extended operation, describe the specific aging management activities that will be performed to ensure, as specified in SQNs response to GL 89-13, stagnant/dead leg piping is not fouled or clogged. Include the relevant portions of existing implementing procedures and provide the frequency of the activities.
- 2) For the period of extended operation, describe how the operating experience information obtained through the UT inspections are accounted for in activities credited by the Service Water Integrity program.
- 3) For the period of extended operation, a) describe how system function will be verified if UT inspections detect debris, and b) provide the programmatic constraints to ensure that UT inspections will not be credited as part of the Service Water Integrity Program, unless the technique has been demonstrated to effectively identify the amount and type of debris.
PER 900557 GL 89-13 Service Water - Managing Fouling in Dead Legs In the TVA SQN 89-13 letter to the NRC dated September 22, 1995 (S64950922800), SQN provided a revised GL 89-13 Service Water System program and status update.
The TVA response to GL 89-13 Recommended Program C (fouling or clogging of infrequently used cooling loops) provided an engineering evaluation for not flushing dead leg piping and stated that the material condition of dead leg piping would be monitored by nondestructive examination (UT wall thickness checks) under the SQN raw water fouling and corrosion control program.
TVA currently uses UT (under the PM program) to check for fouling inside of dead leg piping off of the 24 ERCW headers to spool pieces providing flood mode cooling to hot sample coolers and the Spent Fuel Pit Cooling system heat exchangers and makeup water to CCS surge tanks A/B. Silt/clams have been detected in the past PM performances and corrective actions taken to address the findings. These UT flow blockage PMs are not credited in the GL 89-13 Service Water System program for managing fouling of these dead legs.
In a draft LR RAI to the SQN LR Project, on 6/18/14, the NRC has questioned the method by which fouling/debris in dead leg piping is managed under the GL 89-13 Service Water Program. The NRC has also questioned the adequacy of the demonstration documentation of the UT pipe blockage detection method used to detect silt/clams/debris inside dead leg/stagnant piping.
Corporate/SQN 89-13 Program Owners (and Licensing) have been notified.
Issues that this PER need to address:
(1) Re-evaluate the 89-13 September 22, 1995, SQN letter to the NRC (S64950922800), SQN GL 89-13 response in regard to managing fouling/silt/clams/debris in ERCW dead leg piping. Based on this re-evaluation, supplement the existing GL 89-13 program to include additional methods such as flow tests/flushes, radiograph (RT) or a demonstrated UT method to supplement the current GL 89-13 credited methods. Document the frequency of the 89-13 flow blockage inspection activities in this PER.
(2) Describe how the operating experience information obtained through the UT inspections (for fouling/silt/clams/debris in ERCW and filled Firewater System dead leg piping) are accounted for in activities credited by the Service Water Integrity LR AMP for SQN.
(3) Provide effectiveness demonstration documentation (analysis, white paper, critical thinking, etc.,) for the UT method for detecting pipe fouling/blockage/silt/debris currently used under the PM program.
(4) If the UT method for detecting pipe fouling/blockage/silt/debris has been demonstrated reliable/credible/acceptable in #3, evaluate crediting this methodology for the Service Water (ERCW) Integrity LR AMP for SQN.
(5) This PER shall be completed prior to June 1, 2016.
SUBJECT:
SUMMARY
OF TELEPHONE CONFERENCE CALL HELD ON JUNE 19, 2014, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND TENNESSEE VALLEY AUTHORITY, CONCERNING REQUESTS FOR ADDITIONAL INFORMATION PERTAINING TO THE SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC.
NOS. MF0481 AND MF0482).
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