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| | issue date = 06/24/2014 | | | issue date = 06/24/2014 |
| | title = 06/04/2014, Summary of Telephone Conference Call Held Between NRC and Exelon Generation Co., LLC, Concerning Draft Request for Additional Information, Set 32, Pertaining to the Byron, and Braidwood, License Renewal Application | | | title = 06/04/2014, Summary of Telephone Conference Call Held Between NRC and Exelon Generation Co., LLC, Concerning Draft Request for Additional Information, Set 32, Pertaining to the Byron, and Braidwood, License Renewal Application |
| | author name = Robinson L R | | | author name = Robinson L |
| | author affiliation = NRC/NRR/DLR/RPB1 | | | author affiliation = NRC/NRR/DLR/RPB1 |
| | addressee name = | | | addressee name = |
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| | docket = 05000454, 05000455, 05000456, 05000457 | | | docket = 05000454, 05000455, 05000456, 05000457 |
| | license number = | | | license number = |
| | contact person = Robinson L R, 415-4115 | | | contact person = Robinson L, 415-4115 |
| | case reference number = TAC MF1879, TAC MF1880, TAC MF1881, TAC MF1882 | | | case reference number = TAC MF1879, TAC MF1880, TAC MF1881, TAC MF1882 |
| | document type = Meeting Summary, Request for Additional Information (RAI) | | | document type = Meeting Summary, Request for Additional Information (RAI) |
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| =Text= | | =Text= |
| {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 June 24, 2014 LICENSEE: Exelon Generation Company, LLC | | {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 June 24, 2014 LICENSEE: Exelon Generation Company, LLC FACILITY: Byron Station, Units 1 and 2 Braidwood Station, Units 1 and 2 |
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| FACILITY: Byron Station, Units 1 and 2 Braidwood Station, Units 1 and 2 | |
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| ==SUBJECT:== | | ==SUBJECT:== |
| SUMMARY OF TELEPHONE CONFERENCE CALL HELD ON JUNE 4, 2014, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND EXELON
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| GENERATION COMPANY, LLC CONCERNING DRAFT REQUEST FOR ADDITIONAL INFORMATION, SET 32, PERTAINING TO THE BYRON STATION AND BRAIDWOOD STATION, LICENSE RENEWAL APPLICATION (TAC NOS. MF1879, MF1880, MF1881, MF1882)
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| The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Exelon Generation Company, LLC (Exelon or the applicant), held a telephone conference call on June 4, 2014, to discuss and clarify the staff's draft request for additional information (DRAI),
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| Set 32, concerning the Byron Station, Units 1 and 2, and the Braidwood Station, Units 1 and 2, license renewal application. The telephone conference call was useful in clarifying the intent of the staff's DRAIs.
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| provides a listing of the participants, and Enclosure 2 contains a listing of the DRAIs discussed with the applicant, including a brief description on the status of the items. | | ==SUMMARY== |
| | | OF TELEPHONE CONFERENCE CALL HELD ON JUNE 4, 2014, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND EXELON GENERATION COMPANY, LLC CONCERNING DRAFT REQUEST FOR ADDITIONAL INFORMATION, SET 32, PERTAINING TO THE BYRON STATION AND BRAIDWOOD STATION, LICENSE RENEWAL APPLICATION (TAC NOS. MF1879, MF1880, MF1881, MF1882) |
| The applicant had an opportunity to comment on this summary. | | The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Exelon Generation Company, LLC (Exelon or the applicant), held a telephone conference call on June 4, 2014, to discuss and clarify the staffs draft request for additional information (DRAI), |
| | | Set 32, concerning the Byron Station, Units 1 and 2, and the Braidwood Station, Units 1 and 2, license renewal application. The telephone conference call was useful in clarifying the intent of the staffs DRAIs. provides a listing of the participants, and Enclosure 2 contains a listing of the DRAIs discussed with the applicant, including a brief description on the status of the items. |
| /RA/ Lindsay Robinson, Project Manager Projects Branch 1 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-454, 50-455, 50-456, and 50-457
| | The applicant had an opportunity to comment on this summary. |
| | /RA/ |
| | Lindsay Robinson, Project Manager Projects Branch 1 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-454, 50-455, 50-456, and 50-457 |
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| ==Enclosures:== | | ==Enclosures:== |
| : 1. List of Participants | | : 1. List of Participants |
| : 2. List of Draft Request for Additional Information cc w/encls: Listserv | | : 2. List of Draft Request for Additional Information cc w/encls: Listserv |
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| ML14162A369 *concurred via email OFFICE LA:DLR:RPB2 PM:RPB1:DLR BC:RPB1:DLR PM:RPB1:DLR NAME YEdmonds LRobinson YDiazSanabria LRobinson DATE 6/23/14 6/23/14 6/23/14 6/24/14 | | ML14162A369 *concurred via email OFFICE LA:DLR:RPB2 PM:RPB1:DLR BC:RPB1:DLR PM:RPB1:DLR NAME YEdmonds LRobinson YDiazSanabria LRobinson DATE 6/23/14 6/23/14 6/23/14 6/24/14 |
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| ==SUBJECT:== | | ==SUBJECT:== |
| SUMMARY OF TELEPHONE CONFERENCE CALL HELD ON JUNE 4, 2014, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND EXELON GENERATION COMPANY, LLC CONCERNING DRAFT REQUEST FOR ADDITIONAL INFORMATION, SET 32, PERTAINING TO THE BYRON STATION AND BRAIDWOOD STATION, LICENSE RENEWAL APPLICATION (TAC NOS. MF1879, MF1880, MF1881, MF1882)
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| DISTRIBUTION EMAIL: PUBLIC RidsNrrDlr Resource
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| RidsNrrDlrRpb1 Resource RidsNrrDlrRarb Resource RidsNrrDlrRasb Resource
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| RidsOgcMailCenter
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| RidsNrrPMByron Resource RidsNrrPMBraidwood Resource ----------------------------------
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| LRobinson DMcIntyre, OPA
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| EDuncan, RIII
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| JBenjamin, RIII | | ==SUMMARY== |
| | OF TELEPHONE CONFERENCE CALL HELD ON JUNE 4, 2014, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND EXELON GENERATION COMPANY, LLC CONCERNING DRAFT REQUEST FOR ADDITIONAL INFORMATION, SET 32, PERTAINING TO THE BYRON STATION AND BRAIDWOOD STATION, LICENSE RENEWAL APPLICATION (TAC NOS. MF1879, MF1880, MF1881, MF1882) |
| | DISTRIBUTION EMAIL: |
| | PUBLIC RidsNrrDlr Resource RidsNrrDlrRpb1 Resource RidsNrrDlrRarb Resource RidsNrrDlrRasb Resource RidsOgcMailCenter RidsNrrPMByron Resource RidsNrrPMBraidwood Resource |
| | ---------------------------------- |
| | LRobinson DMcIntyre, OPA EDuncan, RIII JBenjamin, RIII AGarmoe, RIII JMcGhee, RIII JRobbins, RIII VMitlyng, RIII PChandrathil, RIII |
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| AGarmoe, RIII JMcGhee, RIII JRobbins, RIII
| | TELEPHONE CONFERENCE CALL BYRON STATION, UNITS 1 AND 2, AND BRAIDWOOD STATION, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS June 4, 2014 PARTICIPANTS AFFILIATIONS Lindsay Robinson U.S. Nuclear Regulatory Commission (NRC) |
| | John Wise NRC John Hufnagel Exelon Generating Company, LLC (Exelon) |
| | Al Fulvio Exelon Don Warfel Exelon Albert Piha Exelon Don Brindle Exelon Ralph Wolen Exelon Paul Weyhmuller Exelon ENCLOSURE 1 |
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| VMitlyng, RIII
| | DRAFT REQUEST FOR ADDITIONAL INFORMATION BYRON STATION, UNITS 1 AND 2, AND BRAIDWOOD STATION, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION June 4, 2014 The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Exelon Generation Company, LLC (Exelon or the applicant), held a telephone conference call on June 4, 2014, to discuss and clarify the following draft request for additional information (DRAI), |
| | Set 32, concerning the Byron Station, Units 1 and 2, and the Braidwood Station, Units 1 and 2, license renewal application (LRA). |
| | DRAI 3.4.2.2-1 Applicability: |
| | Byron Station (Byron) and Braidwood Station (Braidwood), all units |
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| PChandrathil, RIII ENCLOSURE 1 TELEPHONE CONFERENCE CALL BYRON STATION, UNITS 1 AND 2, AND BRAIDWOOD STATION, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS June 4, 2014 PARTICIPANTS AFFILIATIONS Lindsay Robinson U.S. Nuclear Regulatory Commission (NRC) John Wise NRC John Hufnagel Exelon Generating Company, LLC (Exelon) Al Fulvio Exelon Don Warfel Exelon Albert Piha Exelon Don Brindle Exelon Ralph Wolen Exelon Paul Weyhmuller Exelon
| | ==Background:== |
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| ENCLOSURE 2 DRAFT REQUEST FOR ADDITIONAL INFORMATION BYRON STATION, UNITS 1 AND 2, AND BRAIDWOOD STATION, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION June 4, 2014
| | License renewal application (LRA) Table 3.4.2-5, Main Turbine and Auxiliaries System, includes an aging management review (AMR) item for carbon steel flow devices in a treated water environment that are being managed for loss of material by the Inspection of Internal Surfaces In Miscellaneous Piping and Ducting program. The item cites Generic Note H, and the associated-plant specific note states that the aging effects for carbon steel in treated water environment include loss of material due to erosion. During its reviews, the staff noted that LRA Table 3.4.2-2, Condensate and Feedwater Auxiliaries System, and Table 3.3.2-18, Radiation Monitor System, also include AMR items for carbon steel flow devices in a treated water environment that are being managed for loss of material. However, the associated items in those tables only cite the Water Chemistry and the One-Time Inspection programs as the applicable aging management programs (AMPs). |
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| The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Exelon Generation Company, LLC (Exelon or the applicant), held a telephone conference call on June 4, 2014, to discuss and clarify the following draft request for additional information (DRAI), Set 32, concerning the Byron Station, Units 1 and 2, and the Braidwood Station, Units 1 and 2, license renewal application (LRA).
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| DRAI 3.4.2.2-1 Applicability
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| : Byron Station (Byron) and Braidwood Station (Braidwood), all units
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| ===
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| Background===
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| : License renewal application (LRA) Table 3.4.2-5, "Main Turbine and Auxiliaries System," includes an aging management review (AMR) item for carbon steel flow devices in a treated water environment that are being managed for loss of material by the Inspection of Internal Surfaces In Miscellaneous Piping and Ducting program. The item cites Generic Note H, and the associated-plant specific note states that the aging effects for carbon steel in treated water environment include loss of material due to erosion. During its reviews, the staff noted that LRA Table 3.4.2-2, "Condensate and Feedwater Auxiliaries System," and Table 3.3.2-18, "Radiation Monitor System," also include AMR items for carbon steel flow devices in a treated water environment that are being managed for loss of material. However, the associated items in those tables only cite the Water Chemistry and the One-Time Inspection programs as the applicable aging management programs (AMPs).
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| Issue: | | Issue: |
| For all other flow devices in a variety of water environments, the LRA cites a periodic condition monitoring program (i.e., Open-Cycle Cooling Water System, Closed-Treated Water System, or Inspection of Internal Surfaces). However, it appears that the only AMR items that are not managed by a periodic condition monitoring AMP are the two items discussed above. It is not clear to the staff why some carbon steel flow devices in a treated water environment are being managed for loss of material due to erosion, whereas other carbon steel flow devices in the same environment are not being managed for loss of material due to erosion. | | For all other flow devices in a variety of water environments, the LRA cites a periodic condition monitoring program (i.e., Open-Cycle Cooling Water System, Closed-Treated Water System, or Inspection of Internal Surfaces). However, it appears that the only AMR items that are not managed by a periodic condition monitoring AMP are the two items discussed above. It is not clear to the staff why some carbon steel flow devices in a treated water environment are being managed for loss of material due to erosion, whereas other carbon steel flow devices in the same environment are not being managed for loss of material due to erosion. |
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| Request: | | Request: |
| Provide the bases to show that the carbon steel flow devices exposed to treated water in LRA Tables 3.3.2-18 and 3.4.2-2 will be adequately managed by only the Water Chemistry and One-Time Inspection programs and do not require management for loss of material due to erosion. Include information that addresses the apparent inconsistency between the aging management activities for these flow devices and the carbon steel flow devices exposed to treated water in | | Provide the bases to show that the carbon steel flow devices exposed to treated water in LRA Tables 3.3.2-18 and 3.4.2-2 will be adequately managed by only the Water Chemistry and One-Time Inspection programs and do not require management for loss of material due to erosion. |
| | Include information that addresses the apparent inconsistency between the aging management activities for these flow devices and the carbon steel flow devices exposed to treated water in LRA Table 3.4.2-5. |
| | ENCLOSURE 2 |
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| LRA Table 3.4.2-5. Discussion
| | Discussion: The applicant requested clarification on the staffs request. The staff discussed the basis for the DRAI, which was the apparent disparity between aging management activities for flow devices in several different systems. During the telephone conference, the applicant provided the following information: |
| : The applicant requested clarification on the staff's request. The staff discussed the basis for the DRAI, which was the apparent disparity between aging management activities for flow devices in several different systems. During the telephone conference, the applicant provided the following information: | | : 1. The AMR item in the table for the main turbine and auxiliaries system is associated with four flow devices (two per site) that see low quality extraction steam. During a previous inspection, the applicant identified loss of material on one of these flow devices. Consequently, the applicant included these flow devices in the Inspection of Internal Surfaces of Miscellaneous Piping and Ducting program to manage loss of material. |
| : 1. The AMR item in the table for the main turbine and auxiliaries system is associated with four flow devices (two per site) that see low quality extraction steam. During a previous inspection, the applicant identified loss of material on one of these flow devices. Consequently, the applicant included these flow devices in the Inspection of Internal Surfaces of Miscellaneous Piping and Ducting program to manage loss of material. | | : 2. The applicant determined that the loss of material was due to erosion caused by a combination of the low quality steam in the main turbine and auxiliaries system and the unique geometry of the probes within these particular flow devices. |
| : 2. The applicant determined that the loss of material was due to erosion caused by a combination of the low quality steam in the main turbine and auxiliaries system and the unique geometry of the probes within these particular flow devices. | |
| : 3. The applicant performed an extent of condition review and concluded that the erosion problem only applied to these 16 devices in the main turbine and auxiliaries system. | | : 3. The applicant performed an extent of condition review and concluded that the erosion problem only applied to these 16 devices in the main turbine and auxiliaries system. |
| The applicant confirmed that there was no evidence of erosion in the condensate and feedwater system by performing an ultrasonic test examination of the flow devices. | | The applicant confirmed that there was no evidence of erosion in the condensate and feedwater system by performing an ultrasonic test examination of the flow devices. |
| : 4. The applicant stated that the flow devices in the radiation monitoring system have a completely different geometry and use a different technology for measuring flow. | | : 4. The applicant stated that the flow devices in the radiation monitoring system have a completely different geometry and use a different technology for measuring flow. |
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| Based on the information provided by the applicant, the staff concluded the applicant had sufficient bases to not require the addition aging management activities for the flow devices in the condensate and feedwater auxiliaries system and the radiation monitoring system. As a result, the staff concluded that this DRAI and its associated set identifier, Set 32, will not be formally issued to the applicant.}} | | Based on the information provided by the applicant, the staff concluded the applicant had sufficient bases to not require the addition aging management activities for the flow devices in the condensate and feedwater auxiliaries system and the radiation monitoring system. As a result, the staff concluded that this DRAI and its associated set identifier, Set 32, will not be formally issued to the applicant.}} |
Letter Sequence Draft RAI |
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Results
Other: ML13212A367, ML14050A304, ML14071A620, ML14072A369, ML14092A346, ML14177A430, ML14238A691, ML15098A181, ML15106A736, RS-14-183, Updated Responses to NRC Set 14 Requests for Additional Information, Related License Renewal Application, RS-14-249, Results of Detailed Review Performed in Response to Request 1 of NRC RAI B.2.1.7-7 from Set 17, Related to License Renewal Application
|
MONTHYEARML13212A3672013-08-12012 August 2013
Plan for the Aging Management Program Regulatory Audits Regarding the Byron and Braidwood Nuclear Stations License Renewal Application Review (TAC Nos. MF1879, MF1880, MF1881, and MF1882)
Project stage: Other
ML13281A5742013-11-25025 November 2013
Requests for Additional Information for the Review of the Byron Nuclear Station, Units 1 and 2, and Braidwood Nuclear Station, Units 1 and 2, License Renewal Application - Aging Management, Set 3 (TAC Nos. MF1879, MF1880, MF1881, and MF1882
Project stage: RAI
ML13303B4632013-11-25025 November 2013
Summary of Telephone Conference Call Held on October 22, 2013, Between the U.S. Nuclear Regulatory Commission and Exelon Generation Company, LLC, Concerning RAI Set 3 for the Byron-Braidwood LRA
Project stage: RAI
ML13281A5692013-12-12012 December 2013
Request for Additional Information for the Review of the Byron Nuclear Station Units 1 and 2, and the Braidwood Nuclear Station Units 1 and 2, LRA - Aging Management, Set 4
Project stage: RAI
ML13282A3692013-12-13013 December 2013
Requests for Additional Information for the Review of the Byron Nuclear Station, Units 1 and 2, and Braidwood Nuclear Station, Units 1 and 2, License Renewal Application - Aging Management, Set 2 (TAC Nos. MF1879, MF1880, MF1881, and MF1882
Project stage: RAI
RS-13-273, Responses to NRC Requests for Additional Information, Set 3, Dated November 25, 2013, Related to the License Renewal Application2013-12-17017 December 2013
Responses to NRC Requests for Additional Information, Set 3, Dated November 25, 2013, Related to the License Renewal Application
Project stage: Response to RAI
RS-13-274, Response to NRC Requests for Additional Information, Set 5, Dated November 22, 2013, Related to License Renewal Application2013-12-19019 December 2013
Response to NRC Requests for Additional Information, Set 5, Dated November 22, 2013, Related to License Renewal Application
Project stage: Response to RAI
ML13317A0752014-01-13013 January 2014
Requests for Additional Information for Review of Byron, Units 1 & 2, and Braidwood, Units 1 & 2, License Renewal Applications, Set 6
Project stage: RAI
RS-14-003, Bryon, Units 1 and 2, Response to NRC Requests for Additional Information, Set 2, Dated December 13, 2013, Related to the License Renewal Application2014-01-13013 January 2014
Bryon, Units 1 and 2, Response to NRC Requests for Additional Information, Set 2, Dated December 13, 2013, Related to the License Renewal Application
Project stage: Response to RAI
ML14007A6582014-01-22022 January 2014
Requests for Additional Information for the Review of the Byron Station, Units 1 and 2, and Braidwood Station, Units 1 and 2, License Renewal Application, Set 9 (TAC Nos. MF1879, MF1880, MF1881, and MF1882)
Project stage: RAI
ML13309A9322014-01-23023 January 2014
Summary of Telephone Conference Call Held on October 31, 2013, Between the U.S. Nuclear Regulatory Commission and Exelon Generation Company, LLC, Concerning Draft Requests for Additional Information Pertaining to the Byron Station and Braid
Project stage: Draft RAI
RS-14-030, Response to NRC Requests for Additional Information, Set 6, Dated January 13, 2014, Related to License Renewal Application2014-02-0404 February 2014
Response to NRC Requests for Additional Information, Set 6, Dated January 13, 2014, Related to License Renewal Application
Project stage: Response to RAI
ML14006A0212014-02-0606 February 2014
Requests for Additional Information for the Review of the Byron Station, Units 1 and 2, and Braidwood Station, Units 1 and 2, License Renewal Application- Aging Management, Set 8 (TAC Nos. MF1879, MF1880, MF1881, and MF1882)
Project stage: RAI
ML14023A5642014-02-0707 February 2014
RAI for the Review of the Byron Station, Units 1 and 2, and Braidwood Station, Units 1 and 2, License Renewal Application, Set 13 (TAC MF1879, MF1880, MF1881, and MF1882)
Project stage: RAI
ML14030A5962014-02-10010 February 2014
Requests for Additional Information for the Review of the Byron Station, Units 1 and 2, and Braidwood Station, Units 1 and 2, License Renewal Application, Set 12 (TAC MF1879, MF1880, MF1881, and MF1882)
Project stage: RAI
ML14007A6032014-02-18018 February 2014
Request for Additional Information for the Review of the Byron Nuclear Station, Units 1 and 2, and Braidwood Nuclear Station, Units 1 and 2, LRA - Aging Management - Set 17
Project stage: RAI
ML14035A1892014-02-20020 February 2014
Summary of Telephone Conference Call Held on January 30, 2014, Between the U.S. Nuclear Regulatory Commission and Exelon Generation Company, LLC, Concerning Draft Request for Additional Information Pertaining to the Byron Station and Braidw
Project stage: Draft RAI
ML14035A5342014-02-20020 February 2014
January 22, 2014, Summary of Telephone Conference Call Held Between NRC and Exelon Generation Company, Llc., Concerning Draft Requests for Additional Information Pertaining to the Byron Station and Braidwood Station, License Renewal Applica
Project stage: Draft RAI
RS-14-051, Response to NRC Requests for Additional Information, Set 8, Dated February 6, 2014 Related to the License Renewal Application2014-02-27027 February 2014
Response to NRC Requests for Additional Information, Set 8, Dated February 6, 2014 Related to the License Renewal Application
Project stage: Response to RAI
ML14063A4952014-03-0404 March 2014
Units 1 & 2, Response to NRC Requests for Additional Information, Set 13, Dated February 7, 2014 Re License Renewal Application
Project stage: Response to RAI
ML14050A1672014-03-0404 March 2014
Summary of Telephone Conference Call on January 23, 2014, Between U.S. Nuclear Regulatory Commission and Exelon Generation Company, LLC, Concerning RAI Set 11, for Byron-Braidwood License Renewal Application (TAC Nos. MF1879, MF1880, MF1881
Project stage: RAI
ML14036A3102014-03-0404 March 2014
Summary of Telephone Conference Call Held on January 28, 2014, Between NRC and Exelon, Concerning RAI Set 10, for the Byron and Braidwood Station, LRA
Project stage: RAI
ML14051A4312014-03-0404 March 2014
Summary of Telephone Conferene Call Held on January 29, 2014, Between the NRC and Exelon Generating Company, Llc., Concerning RAI Set 10, for the Byron and Braidwood Station License Renewal Application (TAC Nos. MF1879, MF1880, MF1881, and
Project stage: RAI
ML14051A4282014-03-0606 March 2014
January 13, 2014, Summary of Telephone Conference Call Held Between the NRC and Exelon RAI Set 8, for the Byron and Braidwood Station LRA
Project stage: RAI
ML14050A0812014-03-0707 March 2014
Correction to Request for Additional Information B.2.1.10-1, Letter Dated February 7, 2014, for the Review of the Byron Station and Braidwood Station, Units 1 and 2, LRA Set 13
Project stage: RAI
ML14058B1802014-03-11011 March 2014
Summary of Telephone Conference Call on February 18, 2014, Between U.S. Nuclear Regulatory Commission & Exelon Generation Company, LLC Concerning Draft Request for Additional Information Regarding Byron & Braidwood Stations, License Renewal
Project stage: Draft RAI
ML14064A4032014-03-11011 March 2014
Summary of Telephone Conference Call on February 27, 2014, Between U.S. Nuclear Regulatory Commission & Exelon Generation Company, LLC Concerning Draft Request for Additional Information Re Byron Station & Braidwood Station License Renewal
Project stage: Draft RAI
ML14064A3912014-03-11011 March 2014
Request for Additional Information for the Review of the Byron Station, Units 1 and 2, and Braidwood Station, Units 1 and 2, License Renewal Application, Set 15 (TAC Nos. MF1879, MF1880, MF1881, and MF1882)
Project stage: RAI
ML14071A6202014-03-13013 March 2014
Aging Management Programs Audit Report Regarding the Byron Station, Units 1 and 2, and Braidwood Station, Units 1 and 2 (Tac Nos. MF1879, MF1880, MF1881, and MF1882)
Project stage: Other
ML14072A3692014-03-13013 March 2014
AMP Audit Enclosure (3)
Project stage: Other
ML14050A3042014-03-14014 March 2014
Scoping and Screening Methodology Audit Report Regarding the Byron Station, and Braidwood Station, Units 1 and 2, LRA
Project stage: Other
ML14058B1822014-03-18018 March 2014
Request for Additional Information for the Review of the Byron Station, Units 1 and 2, and Braidwood Station, Units 1 and 2, License Renewal Application, Set 14 (TAC Nos. MF1879, MF1880, MF1881, and MF1882)
Project stage: RAI
ML14051A5032014-03-20020 March 2014
Request for Additional Information for the Review of the Byron Nuclear Station Units 1 and 2, and Braidwood Nuclear Station, Units 1 and 2, License Renewal Application - Set 17 (TAC Nos. MF1879, MF1880, MF1881, and MF1882)
Project stage: RAI
RS-14-084, Responses to NRC Requests for Additional Information, Set 10, Dated February 26, 2014 Related to the License Renewal Application2014-03-28028 March 2014
Responses to NRC Requests for Additional Information, Set 10, Dated February 26, 2014 Related to the License Renewal Application
Project stage: Response to RAI
ML14084A3352014-04-0303 April 2014
Request for Additional Information for the Review of the Byron Station, Units 1 and 2, and Braidwood Station, Units 1 and 2, License Renewal Application, Set 16 (TAC Nos. MF1879, MF1880, MF1881, and MF1882)
Project stage: RAI
ML14073A7052014-04-0303 April 2014
Summary of Telephone Conference Call Held on February 12, 2014, Between the NRC and Exelon, Concerning Drais Pertaining to the Byron and Braidwood Station, LRA
Project stage: RAI
ML14092A3462014-04-0707 April 2014
Project Manager Change for the License Renewal of Byron Station, Units 1 and 2, and Braidwood Station, Units 1 and 2 (TAC Nos. MF1879, MF1880, MF1881, and MF1882)
Project stage: Other
ML14092A2612014-04-0707 April 2014
Request for Additional Information for the Review of the Byron Station, Units 1 and 2, and Braidwood Station, Units 1 and 2, License Renewal Application, Set 20 (TAC Nos. MF1879, MF1880, MF1881, and MF1882)
Project stage: RAI
ML14084A4882014-04-0707 April 2014
03/04/2014 Summary of Telephone Conference Call Held Between NRC and Exelon Generation Company, LLC, Concerning Draft Request for Additional Information Pertaining to the Byron and Braidwood License Renewal Application Set 16
Project stage: Draft RAI
ML14094A3662014-04-0808 April 2014
Request for Additional Information for the Review of the Byron Station, Units 1 and 2, and Braidwood Station, Units 1 and 2, License Renewal Application, Set 19
Project stage: RAI
ML14093B2472014-04-10010 April 2014
Request for Additional Information for the Review of the Byron Station, Units 1 and 2, and Braidwood Station, Units 1 and 2, License Renewal Application, Set 18 (TAC Nos. MF1879, MF1880, MF1881, and MF1882)
Project stage: RAI
ML14099A4852014-04-17017 April 2014
Request for Additional Information for the Review of the Byron Station, Units 1 & 2, and Braidwood Station, Units 1 & 2, License Renewal Application, Set 21, (TAC Nos. MF1879, MF1880, MF1881, and MF1882)
Project stage: RAI
ML14099A4932014-04-22022 April 2014
April 03, 2014 Summary of Telephone Conference Call Held Between NRC and Exelon Generation Co., LLC, Concerning Draft Request for Additional Information, Set 21, Pertaining to Byron, Units 1 & 2, Braidwood, Units 1 & 2, License Renewal Appl
Project stage: Draft RAI
ML14111A1182014-04-24024 April 2014
Request for Additional Information for the Review of the Byron Station, Units 1 and 2, and Braidwood Station, Units 1 and 2, License Renewal Application, Set 22
Project stage: RAI
ML14107A0772014-04-25025 April 2014
Summary of Telephone Conference Call Held on April 9, 2014, Between the U.S. Nuclear Regulatory Commission & Exelon Generation Company, LLC Concerning Draft Request for Additional Information, Set 23, Pertaining to the Byron Station & Braid
Project stage: Draft RAI
ML14107A2262014-05-14014 May 2014
Summary of Telephone Conference Call Held on March 26, 2014, Between the U.S. Nuclear Regulatory Commission and Exelon Generation Company, LLC Concerning Draft Request for Additional Information, Set 21, Pertaining to the Byron Station and
Project stage: Draft RAI
ML14092A4402014-05-14014 May 2014
Summary of Telephone Conference Call Held on March 19, 2014, Between the U.S. Nuclear Regulatory Commission and Exelon Generation Company, LLC Concerning Draft Request for Additional Information, Set 18, Pertaining to the Byron Station and
Project stage: Draft RAI
ML14112A4182014-05-14014 May 2014
Summary of Telephone Conference Call Held on April 10, 2014, Between the U.S. Nuclear Regulatory Commission and Exelon Generation Company, LLC Concerning Draft Request for Additional Information, Set 22, Pertaining to the Byron Station and
Project stage: Draft RAI
ML14094A4252014-05-14014 May 2014
Summary of Telephone Conference Call Held on April 1, 2014, Between the U.S. Nuclear Regulatory Commission and Exelon Generation Company, LLC Concerning Draft Request for Additional Information, Set 19, Pertaining to the Byron Station and B
Project stage: Draft RAI
ML14129A3392014-05-14014 May 2014
Request for Withholding Information from Public Disclosure
Project stage: Withholding Request Acceptance
2014-03-11
[Table View] |
06/04/2014, Summary of Telephone Conference Call Held Between NRC and Exelon Generation Co., LLC, Concerning Draft Request for Additional Information, Set 32, Pertaining to the Byron, and Braidwood, License Renewal Application| ML14162A369 |
| Person / Time |
|---|
| Site: |
Byron, Braidwood  |
|---|
| Issue date: |
06/24/2014 |
|---|
| From: |
Robinson L
License Renewal Projects Branch 1 |
|---|
| To: |
|
|---|
| Robinson L, 415-4115 |
| References |
|---|
| TAC MF1879, TAC MF1880, TAC MF1881, TAC MF1882 |
| Download: ML14162A369 (6) |
|
|
|---|
Category:Meeting Summary
MONTHYEARML24009A0552024-01-24024 January 2024
Summary of January 8, 2024, Presubmittal Meeting Between the U.S. Nuclear Regulatory Commission and Constellation Energy Generation, LLC, Regarding Removal of the Power Distribution Monitoring System from Technical Specifications
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Summary of August 30, 2023, Presubmittal Meeting Between the U.S. Nuclear Regulatory Commission and Constellation Energy Generation, LLC, Regarding Relaxation of Inspection Requirements for the Head Penetration P-75 Flaw
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Summary of October 4, 2023, Pre Submittal Meeting Between the U.S. NRC and Constellation Energy Generation, LLC, Regarding Revising Technical Specification 3.7.9. Ultimate Heat Sink (UHS)
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Summary of the June 1, 2023, Public Outreach to Discuss the NRC 2022 End-of-Cycle Plant Performance Assessment of Braidwood Station, Units 1 and 2; and Byron Station, Units 1 and 2
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Summary of March 22, 2023, Closed Meeting with Constellation Energy Generation, LLC, to Discuss a Future License Amendment Request That Allows Byron Station and Braidwood Station to Utilize a New Citicality Analysis for the Spent Fuel Pools
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Summary of February 23, 2023, with Constellation Energy Generation, LLC on Proposed Changes to Emergency Plans to Revise Emergency Action Levels
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Summary of Public Meeting with Constellation Energy Generation, LLC (Constellation) to Discuss Its Request for Alternatives for Certain Steam Generator Weld Inspections for Calvert Cliffs 1 & 2, Byron 1 & 2, Braidwood 1 & 2, and Ginna
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Summary of the June 2, 2022, Public Outreach to Discuss the NRC 2021 End of Cycle Plant Performance Assessment of Braidwood Station, Units 1 and 2, and Byron Station, Units 1 and 2
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Summary of April 11, 2022, Meeting Between the U.S. NRC and Constellation Energy Generation, LLC, Regarding a Future Amendment to Place One High Burnup Lead Test Assembly Into the Byron, Unit 2, Reactor
ML22111A2852022-05-0909 May 2022
Summary of April 4, 2022, Meeting Between the U.S. NRC and Constellation Energy Generation, LLC, Regarding Performance Monitoring of Pressurizer Welds (EPIDs L-2022-LLR-0035/36)
ML22111A3362022-05-0909 May 2022
Summary of April 7, 2022, Meeting Between the NRC and Constellation Energy Generation, LLC, Regarding Performance Monitoring of Pressurizer Welds (Epids L-2022-LRR-0035 and 0036)
ML21330A0722021-12-0303 December 2021
Summary of November 17, 2021, Meeting with Exelon Generation Company, LLC, Related to a Future License Amendment to Remove License Condition 2.C.(12)(d) for Braidwood Station, Unit 2
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Summary of November 16, 2021, Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Alternative to Extend the Inservice Inspection Interval
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Summary of the July 27, 2021, Meeting with Exelon Generation Company, LLC Regarding a Planned Request to Use Case OMN-28,
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June 15, 2021, Summary of Meeting with Exelon Generation Company, LLC Vessel Nozzle Repair Related to a Planned Request for an Alternative Related to Reactor Pressure
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Summary of Meeting with Exelon Generation Company, LLC Regarding Its Requested Alternative to Eliminate Certain Documentation Requirements for the Replacement of Pressure Retaining Bolting
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June 8, 2021, Summary of the Public Outreach to Discuss the NRC 2020 End-Of-Cycle Plant Performance Assessment of Braidwood Station, Units 1 and 2; and Byron Station, Units 1 and 2
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Summary of May 12, 2021, Meeting with Exelon Generation Company, Llc, Related to a Planned License Amendment to Modify the Ultimate Heat Sink Technical Specifications
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Summary of October 13, 2020, Presubmittal Meeting Between the U. S. Nuclear Regulatory Commission and Exelon Generation Company, LLC Regarding Post Shutdown Emergency Plan Staffing to Support the Planned Early Closures
ML21011A2822021-01-21021 January 2021
Summary of January 6, 2021, Presubmittal Meeting Between the NRC and Exelon Generation Company, LLC Regarding Licensing Activities to Support the Planned Early Closures of Byron, Unit Nos. 1 and 2 and Dresden, Units 2 and 3
ML20351A2832020-12-18018 December 2020
Summary of Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Exemption to Reduce the Frequency of Updates to Its Inservice Testing and Inspection Programs
ML20342A3522020-12-10010 December 2020
Summary of November 13, 2020, Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Alterantive to Certain Documentation Requirements for the Replacement of Pressure Retaining Bolting (EPID-L-2020-LRM-0102)
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Summary of November 4, 2020, Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Alternative to Reduce the Frequency of Updates to Its Inservice Testing and Inspection Programs
ML20280A2482020-10-0707 October 2020
Summary of September 22, 2020, Presubmittal Meeting Between the NRC and Exelon Generation Company LLC Regarding Licensing Activities to Support the Planned Early Closures of Byron, Units 1 and 2 and Dresden, Units 2 and 3
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(COVID-19) Presubmittal Meeting Summary - Byron Unit 2 LAR - One-Time Extension of Steam Generator Tube Inspections
ML20218A5302020-08-0505 August 2020
July 14, 2020, Summary of the Public Webinar to Discuss the NRC 2019 End-of-Cycle Plant Performance Assessment of Braidwood Station, Units 1 and 2; and Byron Station, Units 1 and 2
ML20181A0002020-06-29029 June 2020
Summary of 6/24/20 Meeting with Exelon Generation Company, LLC Regarding Planned Request for Alternative to Supplemental Valve Position Indication Testing Requirements for Braidwood, Calvert Cliffs, Clinton, Limerick, Nine Mile, Peach Botto
ML19326A3152019-12-0303 December 2019
Summary of November 18, 2019, Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Alternative to Supplemental Valve Position Indication Testing Requirements
ML19326C3582019-12-0303 December 2019
Summary of November 20, 2019, Meeting with Exelon Generation Company, LLC Regarding a Planned Request to Revise the Quality Assurance Program
ML19162A0272019-06-21021 June 2019
Summary of June 4, 2019, Meeting with Exelon Generation Company, LLC Regarding a Planned Request to Extend the Test Interval for Safety Relief Valves
ML20108F0902019-04-20020 April 2019
April 15, 2020, Meeting Summary with Exelon Generation Company, LLC Regarding Planned Request to Defer Submittal of Owner'S Activity Report (Braidwood 2,Byron 2,Calvert Cliffs 1, LaSalle 1, Limerick 1, Nine Mile Point 2, Quad 2, R. E. Ginna
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Summary of Meeting with Exelon Generation Company, LLC Regarding a Planned Request to Use ASME Code Case N-879
ML18354B1712019-01-0202 January 2019
Summary of December 19, 2018, Meeting with Exelon Generation Company, LLC Regarding the Use of Boiling Water Reactor Vessel and Internals Project Guidelines
ML18325A1712018-11-28028 November 2018
Summary of Meeting with Exelon Generation Company, LLC Regarding Planned Fleet License Amendment Request to Revise Technical Specifications for High Radiation Areas
ML18297A1722018-10-26026 October 2018
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ML18225A3042018-08-16016 August 2018
Summary of August 8, 2018, Meeting with Exelon Generation Company, LLC, on a Future Relief Request to Extend the Post Peening Follow-Up Inspections for Certain Reactor Pressure Vessel Head Penetrations
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Summary of the May 10th, 2018, Public Open House Regarding Braidwood Nuclear Power Station
ML18120A1772018-05-0101 May 2018
Summary of Meeting with Exelon Generation Company, LLC Regarding Draft Guidance for Emergency Response Organization Staffing
ML18113A7052018-04-23023 April 2018
Summary of Open House to Discuss the 2017 End-of-Cycle Plant Performance Assessment of Byron Station
ML18113A6592018-04-23023 April 2018
Summary of Open House to Discuss the 2017 End-of-Cycle Plant Performance Assessment of Palisades Nuclear Plant
ML18065A8362018-03-0707 March 2018
Summary of February 27, 2018, Meeting with Exelon Generation Company, LLC Planned Fleet License Amendment Request to Relocate Staff Qualification Requirements from TSs to the Quality Assurance Topical Report
ML18058A5232018-03-0101 March 2018
Summary of February 26, 2018, Meeting with Exelon Generation Company, LLC Regarding Proposed Alternative to the Main Steam Isolation Valve Testing Requirements
ML18018B4432018-01-25025 January 2018
Summary of December 17, 2017, Closed Meeting with Exelon Generation Company, LLC, Regarding Tvel Lead Test Assemblies to Be Placed in the Braidwood Reactor (EPID 000976/05000456/L-2017-LRM and 000976/05000457/L-2017-LRM-0047
ML17347B1022017-12-14014 December 2017
Summary of Meeting with Exelon Generation Company, LLC on Its Planned Fleet License Amendment Request to Revise the Minimum Staffing Requirements for Emergency Response
2024-01-03
[Table view]
Category:Request for Additional Information (RAI)
MONTHYEARML23339A0452023-12-0505 December 2023
Request for Information for an NRC Post-Approval Site Inspection for License Renewal Inspection Report 05000546/2024010
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Information Request for the Cyber Security Baseline Inspection, Notification to Perform Inspection
ML23209A7242023-07-31031 July 2023
Request for Information on the NRC Quadrennial Comprehensive Engineering Team Inspection: Inspection Report 05000454/2024010 and 05000455/2024010
ML23198A0372023-07-17017 July 2023
Information Request to Support Upcoming Problem Identification and Resolution (PIR) Inspection at Byron Nuclear Plant
ML23191A8442023-07-10010 July 2023
05000456; 05000457 Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and Request for Information
ML23172A1172023-06-22022 June 2023
Notification of NRC Fire Protection Team Inspection Request for Information
ML23110A3202023-04-21021 April 2023
Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection
ML23094A1352023-04-0404 April 2023
Request for Information for Nrc Commercial Grade Dedication Inspection Inspection Report 05000456/2023010 05000457/2023010
ML23069A0342023-03-0606 March 2023
Unit 1 Lr Commitment 10 RAI Set 1 - (Non-Proprietary)
ML23069A0332023-03-0606 March 2023
Email to K. Lueshen Byron and Braidwood Commitment 10 - Request for Additional Information Set 1
ML23115A2412023-01-20020 January 2023
NRR E-mail Capture - Preliminary RAIs Related to L-2022-LLA-0131 - Byron, Unit 2, Reinsertion of an Accident Tolerant Fuel Lead Test Assembly
ML23018A1632023-01-18018 January 2023
Notification of NRC Baseline Inspection and Request for Information
ML22241A0522022-08-29029 August 2022
Notification of NRC Baseline Inspection and Request for Information Inspection Report 05000456/2022004 05000457/2022004
ML22237A0272022-08-25025 August 2022
Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and Request for Information
ML22271A0772022-05-0606 May 2022
NRR E-mail Capture - Final RAIs 9.1.2021 Constellation Relief Request
ML22129A0132022-05-0606 May 2022
NRR E-mail Capture - Draft RAIs for Requests for Alternatives I4R-17, I4R-23, ISI-05-018, I6R-10
ML22116A1272022-04-26026 April 2022
Unit 2 RFI for an NRC Triennial Heat Exchanger/Sink Performance Inspection and RFI IR 05000454/2022002 05000455/2022002
ML22091A0852022-04-0101 April 2022
NRR E-mail Capture - Braidwood and Byron - Final RAI Regarding Proposed Alternative for Various Pressurizer Welds (EPID L-2021-LLR-0035 and 0036)
ML22041B5362022-02-10010 February 2022
NRR E-mail Capture - Constellation Energy Generation, LLC - Request for Additional Information Regarding Fleet License Amendment Request to Adopt TSTF-541
ML22034A9862022-02-0404 February 2022
Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000456/2022402 05000457/2022402
ML21350A4372021-12-16016 December 2021
Request for Information for an NRC Triennial Baseline Design Bases Assurance Inspection (Team) Inspection Report 05000456/2022010 and 05000457/2022010
ML21273A3312021-10-0404 October 2021
Information Request to Support Upcoming Biennial Problem Identification and Resolution (Pi&R) Inspection at Byron Station
ML21256A1902021-09-10010 September 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application
ML21228A2352021-08-17017 August 2021
Notification of NRC Baseline Inspection and Request for Information Inspection Report 05000457/2021004
ML21203A3112021-07-21021 July 2021
NRR E-mail Capture - Final Byron Permanently Defueled Technical Specifications (PDTS) - Second Round RAI
ML21193A0942021-07-12012 July 2021
Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and Request for Information
ML21189A1612021-07-0808 July 2021
NRR E-mail Capture - Second Round Request for Additional Information - Byron Permanently Defueled Technical Specification Amendment
ML21189A1602021-07-0808 July 2021
NRR E-mail Capture - Request for Additional Information - Braidwood, Byron, and Ginna - Amendment to Address the Issues in Westinghouse NSALs
ML21144A2132021-05-24024 May 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application
ML21117A0342021-05-0505 May 2021
Request for Additional Information Regarding Proposed Alternative to Use ASME Code Case N-893
ML21062A0652021-03-0101 March 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative to Documentation Requirements for Pressure Retaining Bolting
ML21057A1022021-02-25025 February 2021
Notification of NRC Fire Protection Team Inspection Request for Information; Inspection Report 05000456/2021010; 05000457/2021010
ML21049A2572021-02-18018 February 2021
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ML21036A1102021-02-0404 February 2021
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Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000456/2021002; 05000457/2021002
ML21004A1452020-12-30030 December 2020
NRR E-mail Capture - Request for Additional Information Regarding Relief Requests Braidwood I4R-11 and Byron I4R-18
ML20329A4852020-11-24024 November 2020
Notification of NRC Fire Protection Team Inspection Request for Information
ML20294A5492020-10-21021 October 2020
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ML20289A1142020-10-0909 October 2020
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ML20153A7042020-06-0101 June 2020
NRR E-mail Capture - Preliminary RAI for Fleet Request to Use Alternative OMN-26
ML20104C1452020-04-10010 April 2020
NRR E-mail Capture - Preliminary RAIs for Exelon'S April 6, 2020, Application to Defer Braidwood, Unit 2, Steam Generator Inspections
ML20077M2212020-03-20020 March 2020
Ti 2515/194 Inspection Documentation Request
ML20023A0812020-01-23023 January 2020
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ML20008D3992020-01-0808 January 2020
Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000454/2020001
ML19350B2952019-12-16016 December 2019
NRR E-mail Capture - Draft Request for Additional Information Regarding Braidwood Station, Units 1 and 2, Impractical Inservice Inspection Requirements (L-2019-LLA-0081)
ML19275H1362019-10-0202 October 2019
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Request to Use ASME Code Case N-879
ML19252C1542019-08-22022 August 2019
NRR E-mail Capture - Issuance of the Remainder of Preliminary RAIs for Braidwood/Byron TSTF-505 Application
ML19232A2242019-08-0707 August 2019
NRR E-mail Capture - Partial Issuance of Final RAIs for Braidwood/Byron TSTF-505 Application
ML19207A0672019-07-26026 July 2019
NRR E-mail Capture - Partial Issuance of Preliminary RAIs for Braidwood/Byron TSTF-505 Application
2023-07-31
[Table view] |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 June 24, 2014 LICENSEE: Exelon Generation Company, LLC FACILITY: Byron Station, Units 1 and 2 Braidwood Station, Units 1 and 2
SUBJECT:
SUMMARY
OF TELEPHONE CONFERENCE CALL HELD ON JUNE 4, 2014, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND EXELON GENERATION COMPANY, LLC CONCERNING DRAFT REQUEST FOR ADDITIONAL INFORMATION, SET 32, PERTAINING TO THE BYRON STATION AND BRAIDWOOD STATION, LICENSE RENEWAL APPLICATION (TAC NOS. MF1879, MF1880, MF1881, MF1882)
The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Exelon Generation Company, LLC (Exelon or the applicant), held a telephone conference call on June 4, 2014, to discuss and clarify the staffs draft request for additional information (DRAI),
Set 32, concerning the Byron Station, Units 1 and 2, and the Braidwood Station, Units 1 and 2, license renewal application. The telephone conference call was useful in clarifying the intent of the staffs DRAIs. provides a listing of the participants, and Enclosure 2 contains a listing of the DRAIs 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/
Lindsay Robinson, Project Manager Projects Branch 1 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-454, 50-455, 50-456, and 50-457
Enclosures:
- 1. List of Participants
- 2. List of Draft Request for Additional Information cc w/encls: Listserv
ML14162A369 *concurred via email OFFICE LA:DLR:RPB2 PM:RPB1:DLR BC:RPB1:DLR PM:RPB1:DLR NAME YEdmonds LRobinson YDiazSanabria LRobinson DATE 6/23/14 6/23/14 6/23/14 6/24/14
SUBJECT:
SUMMARY
OF TELEPHONE CONFERENCE CALL HELD ON JUNE 4, 2014, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND EXELON GENERATION COMPANY, LLC CONCERNING DRAFT REQUEST FOR ADDITIONAL INFORMATION, SET 32, PERTAINING TO THE BYRON STATION AND BRAIDWOOD STATION, LICENSE RENEWAL APPLICATION (TAC NOS. MF1879, MF1880, MF1881, MF1882)
DISTRIBUTION EMAIL:
PUBLIC RidsNrrDlr Resource RidsNrrDlrRpb1 Resource RidsNrrDlrRarb Resource RidsNrrDlrRasb Resource RidsOgcMailCenter RidsNrrPMByron Resource RidsNrrPMBraidwood Resource
LRobinson DMcIntyre, OPA EDuncan, RIII JBenjamin, RIII AGarmoe, RIII JMcGhee, RIII JRobbins, RIII VMitlyng, RIII PChandrathil, RIII
TELEPHONE CONFERENCE CALL BYRON STATION, UNITS 1 AND 2, AND BRAIDWOOD STATION, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS June 4, 2014 PARTICIPANTS AFFILIATIONS Lindsay Robinson U.S. Nuclear Regulatory Commission (NRC)
John Wise NRC John Hufnagel Exelon Generating Company, LLC (Exelon)
Al Fulvio Exelon Don Warfel Exelon Albert Piha Exelon Don Brindle Exelon Ralph Wolen Exelon Paul Weyhmuller Exelon ENCLOSURE 1
DRAFT REQUEST FOR ADDITIONAL INFORMATION BYRON STATION, UNITS 1 AND 2, AND BRAIDWOOD STATION, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION June 4, 2014 The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Exelon Generation Company, LLC (Exelon or the applicant), held a telephone conference call on June 4, 2014, to discuss and clarify the following draft request for additional information (DRAI),
Set 32, concerning the Byron Station, Units 1 and 2, and the Braidwood Station, Units 1 and 2, license renewal application (LRA).
DRAI 3.4.2.2-1 Applicability:
Byron Station (Byron) and Braidwood Station (Braidwood), all units
Background:
License renewal application (LRA) Table 3.4.2-5, Main Turbine and Auxiliaries System, includes an aging management review (AMR) item for carbon steel flow devices in a treated water environment that are being managed for loss of material by the Inspection of Internal Surfaces In Miscellaneous Piping and Ducting program. The item cites Generic Note H, and the associated-plant specific note states that the aging effects for carbon steel in treated water environment include loss of material due to erosion. During its reviews, the staff noted that LRA Table 3.4.2-2, Condensate and Feedwater Auxiliaries System, and Table 3.3.2-18, Radiation Monitor System, also include AMR items for carbon steel flow devices in a treated water environment that are being managed for loss of material. However, the associated items in those tables only cite the Water Chemistry and the One-Time Inspection programs as the applicable aging management programs (AMPs).
Issue:
For all other flow devices in a variety of water environments, the LRA cites a periodic condition monitoring program (i.e., Open-Cycle Cooling Water System, Closed-Treated Water System, or Inspection of Internal Surfaces). However, it appears that the only AMR items that are not managed by a periodic condition monitoring AMP are the two items discussed above. It is not clear to the staff why some carbon steel flow devices in a treated water environment are being managed for loss of material due to erosion, whereas other carbon steel flow devices in the same environment are not being managed for loss of material due to erosion.
Request:
Provide the bases to show that the carbon steel flow devices exposed to treated water in LRA Tables 3.3.2-18 and 3.4.2-2 will be adequately managed by only the Water Chemistry and One-Time Inspection programs and do not require management for loss of material due to erosion.
Include information that addresses the apparent inconsistency between the aging management activities for these flow devices and the carbon steel flow devices exposed to treated water in LRA Table 3.4.2-5.
ENCLOSURE 2
Discussion: The applicant requested clarification on the staffs request. The staff discussed the basis for the DRAI, which was the apparent disparity between aging management activities for flow devices in several different systems. During the telephone conference, the applicant provided the following information:
- 1. The AMR item in the table for the main turbine and auxiliaries system is associated with four flow devices (two per site) that see low quality extraction steam. During a previous inspection, the applicant identified loss of material on one of these flow devices. Consequently, the applicant included these flow devices in the Inspection of Internal Surfaces of Miscellaneous Piping and Ducting program to manage loss of material.
- 2. The applicant determined that the loss of material was due to erosion caused by a combination of the low quality steam in the main turbine and auxiliaries system and the unique geometry of the probes within these particular flow devices.
- 3. The applicant performed an extent of condition review and concluded that the erosion problem only applied to these 16 devices in the main turbine and auxiliaries system.
The applicant confirmed that there was no evidence of erosion in the condensate and feedwater system by performing an ultrasonic test examination of the flow devices.
- 4. The applicant stated that the flow devices in the radiation monitoring system have a completely different geometry and use a different technology for measuring flow.
Based on the information provided by the applicant, the staff concluded the applicant had sufficient bases to not require the addition aging management activities for the flow devices in the condensate and feedwater auxiliaries system and the radiation monitoring system. As a result, the staff concluded that this DRAI and its associated set identifier, Set 32, will not be formally issued to the applicant.