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| | number = ML17191A258 | | | number = ML17191A258 |
| | issue date = 07/11/2017 | | | issue date = 07/11/2017 |
| | title = Dresden Nuclear Power Station, Units 2 and 3 - RAI Related to License Amendment Request to Revise Technical Specifications to Adopt Technical Specification Task Force Traveler-542, Revision 2 (CAC NOS.MF9295 and MF9296) | | | title = RAI Related to License Amendment Request to Revise Technical Specifications to Adopt Technical Specification Task Force Traveler-542, Revision 2 (CAC NOS.MF9295 and MF9296) |
| | author name = Haskell R | | | author name = Haskell R |
| | author affiliation = NRC/NRR/DORL/LPLIII | | | author affiliation = NRC/NRR/DORL/LPLIII |
| | addressee name = Hanson B C | | | addressee name = Hanson B |
| | addressee affiliation = Exelon Nuclear | | | addressee affiliation = Exelon Nuclear |
| | docket = 05000237, 05000249 | | | docket = 05000237, 05000249 |
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| =Text= | | =Text= |
| {{#Wiki_filter:Mr. Bryan C. Hanson Senior Vice President UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 July 11, 2017 Exelon Generation Company, LLC President and Chief Nuclear Officer (CNO) Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 | | {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 July 11, 2017 Mr. Bryan C. Hanson Senior Vice President Exelon Generation Company, LLC President and Chief Nuclear Officer (CNO) |
| | Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 |
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| ==SUBJECT:== | | ==SUBJECT:== |
| DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3 -REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATIONS TO ADOPT TECHNICAL SPECIFICATION TASK FORCE TRAVELER-542, REVISION 2, "REACTOR PRESSURE VESSEL WATER INVENTORY CONTROL" (CAC NOS. MF9295 AND MF9296) | | DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATIONS TO ADOPT TECHNICAL SPECIFICATION TASK FORCE TRAVELER-542, REVISION 2, "REACTOR PRESSURE VESSEL WATER INVENTORY CONTROL" (CAC NOS. MF9295 AND MF9296) |
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| ==Dear Mr. Hanson:== | | ==Dear Mr. Hanson:== |
| By application dated February 10, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 17045A006), Exelon Generation Company, LLC (EGC, the licensee), requested to adopt Technical Specifications Task Force (TSTF) Traveler (TSTF-542), "Reactor Pressure Vessel [RPV] Water Inventory Control [WIC]," Revision 2, which would change the technical specifications (TSs) for Dresden Nuclear Power Station, Units 2 and 3. TSTF-542, Revision 2, was approved by the U.S. Nuclear Regulatory Commission (NRC) on December 20, 2016 (ADAMS Accession No. ML 16343B008). The proposed would replace the existing requirements in the TSs related to "operations with the potential to drain the reactor pressure vessel" with revised TSs providing an alternative for RPV WIC. These alternative requirements would protect Safety Limit 2.1.1.3, which requires RPV water level to be greater than the top of active fuel. During the NRC staff review it was determined that additional information is required to complete the staff's safety evaluation. The specific request for additional information (RAI) is addressed in the enclosure to this letter. On June 28, 2017, a draft set of these R.Als was emailed to Mr. Mitch Mathews of your staff for review. In a follow-up phone conversation with NRC staff on July 7, 2017, Mr. Mathews stated that EGC did not require any clarifications to the RAls. He agreed to provide the NRC with EGC's responses no later than August 7, 2017. The NRC staff considers that timely responses to the RAls ensures sufficient time is available for staff review and to contribute toward the NRC's goal of efficient and effective use of staff resources. | | |
| B. Hanson -2-If circumstances result in the need to revise the requested response contact me at (301) 415-1129, or by email at Russell.Haskell@nrc.gov. Docket Nos. 50-237 and 50-249 | | By application dated February 10, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17045A006), Exelon Generation Company, LLC (EGC, the licensee), requested to adopt Technical Specifications Task Force (TSTF) Traveler (TSTF-542), |
| | "Reactor Pressure Vessel [RPV] Water Inventory Control [WIC]," Revision 2, which would change the technical specifications (TSs) for Dresden Nuclear Power Station, Units 2 and 3. |
| | TSTF-542, Revision 2, was approved by the U.S. Nuclear Regulatory Commission (NRC) on December 20, 2016 (ADAMS Accession No. ML16343B008). The proposed cha~ges would replace the existing requirements in the TSs related to "operations with the potential to drain the reactor pressure vessel" with revised TSs providing an alternative for RPV WIC. These alternative requirements would protect Safety Limit 2.1.1.3, which requires RPV water level to be greater than the top of active fuel. |
| | During the NRC staff review it was determined that additional information is required to complete the staff's safety evaluation. The specific request for additional information (RAI) is addressed in the enclosure to this letter. On June 28, 2017, a draft set of these R.Als was emailed to Mr. Mitch Mathews of your staff for review. In a follow-up phone conversation with NRC staff on July 7, 2017, Mr. Mathews stated that EGC did not require any clarifications to the RAls. He agreed to provide the NRC with EGC's responses no later than August 7, 2017. |
| | The NRC staff considers that timely responses to the RAls ensures sufficient time is available for staff review and to contribute toward the NRC's goal of efficient and effective use of staff resources. |
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| | B. Hanson If circumstances result in the need to revise the requested response d-.=a~te,,._,_.~...-se contact me at (301) 415-1129, or by email at Russell.Haskell@nrc.gov. |
| | Russell S. Haskell, Project Manager Plant Licensing Branch Ill Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-237 and 50-249 |
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| ==Enclosure:== | | ==Enclosure:== |
| Request for Additional Information cc w/encl: Distribution via Listserv Russell S. Haskell, Project Manager Plant Licensing Branch Ill Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 REQUEST FOR ADDITIONAL INFORMATION REGARDING PROPOSED LICENSE AMENDMENT APPLICATION TO REVISE TECHNICAL SPECIFICATIONS TO ADOPT TECHNICAL SPECIFICATION TASK FORCE TRAVELER-542. REVISION 2. "REACTOR PRESSURE VESSEL WATER INVENTORY CONTROL" EXELON GENERATION COMPANY. LLC DRESDEN NUCLEAR POWER STATION -UNITS 2 AND 3 DOCKET NOS. 50-237 AND 50-249 By application dated February 10, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 17045A006), Exelon Generation Company, LLC (EGC, the licensee), requested to adopt Technical Specifications Task Force (TSTF) Traveler (TSTF-542), "Reactor Pressure Vessel [RPV] Water Inventory Control [WIC]," Revision 2, which would change the technical specifications (TSs) for Dresden Nuclear Power Station, Units 2 and 3. TSTF-542, Revision 2, was approved by the U.S. Nuclear Regulatory Commission (NRC) on December 20, 2016 (ADAMS Accession No. ML 16343B008). The proposed changes would replace the existing requirements in the TSs related to "operations with the potential to drain the reactor pressure vessel" with revised TSs providing an alternative for RPV WIC. These alternative requirements would protect Safety Limit 2.1.1.3, which requires RPV water level to be greater than the top of active fuel. The NRC staff has reviewed the information the licensee provided that supports the proposed amendment. The staff requests the licensee to address the following issues: DNPS-RAl-1: | | |
| | Request for Additional Information cc w/encl: Distribution via Listserv |
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| | UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 REQUEST FOR ADDITIONAL INFORMATION REGARDING PROPOSED LICENSE AMENDMENT APPLICATION TO REVISE TECHNICAL SPECIFICATIONS TO ADOPT TECHNICAL SPECIFICATION TASK FORCE TRAVELER-542. REVISION 2. |
| | "REACTOR PRESSURE VESSEL WATER INVENTORY CONTROL" EXELON GENERATION COMPANY. LLC DRESDEN NUCLEAR POWER STATION - UNITS 2 AND 3 DOCKET NOS. 50-237 AND 50-249 By application dated February 10, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17045A006), Exelon Generation Company, LLC (EGC, the licensee), requested to adopt Technical Specifications Task Force (TSTF) Traveler (TSTF-542), |
| | "Reactor Pressure Vessel [RPV] Water Inventory Control [WIC]," Revision 2, which would change the technical specifications (TSs) for Dresden Nuclear Power Station, Units 2 and 3. |
| | TSTF-542, Revision 2, was approved by the U.S. Nuclear Regulatory Commission (NRC) on December 20, 2016 (ADAMS Accession No. ML16343B008). The proposed changes would replace the existing requirements in the TSs related to "operations with the potential to drain the reactor pressure vessel" with revised TSs providing an alternative for RPV WIC. These alternative requirements would protect Safety Limit 2.1.1.3, which requires RPV water level to be greater than the top of active fuel. |
| | The NRC staff has reviewed the information the licensee provided that supports the proposed amendment. The staff requests the licensee to address the following issues: |
| | DNPS-RAl-1: |
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| ==Background:== | | ==Background:== |
| In Attachment 2, pg. 3.5.2-1 (of the submittal), the staff identified a discrepancy in the limiting condition for operation (LCO) 3.5.2, Applicability proposed markup. The current TS LCO consists of text not shown in the proposed LCO markup as being deleted. Specifically, there is missing text associated with the MODE 5 exception (i.e., "except with the spent fuel storage pool gates removed and water level 23 ft. over the top of the reactor pressure vessel flange"). Request: Please correct the proposed TS markup as appropriate. Enclosure DNPS-RAl-2: | | |
| | In Attachment 2, pg. 3.5.2-1 (of the submittal), the staff identified a discrepancy in the limiting condition for operation (LCO) 3.5.2, Applicability proposed markup. The current TS LCO consists of text not shown in the proposed LCO markup as being deleted. Specifically, there is missing text associated with the MODE 5 exception (i.e., "except with the spent fuel storage pool gates removed and water level ~ 23 ft. over the top of the reactor pressure vessel flange"). |
| | Request: |
| | Please correct the proposed TS markup as appropriate. |
| | Enclosure |
| | |
| | DNPS-RAl-2: |
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| ==Background:== | | ==Background:== |
| In Attachment 2, pg. 3.5.2-6 (of the submittal), the NRC staff identified a discrepancy. The current TS surveillance requirement (SR) consists of text not shown in the proposed SR markup as being deleted. Specifically, SR 3.5.2.4 is missing the operafing parameter data (i.e., System, Flow Rate, Pumps, Pressure), as per TSTF-542, Revision 2. Request: Please correct the proposed TS markup as appropriate. DNPS-RAl-3: | | |
| | In Attachment 2, pg. 3.5.2-6 (of the submittal), the NRC staff identified a discrepancy. The current TS surveillance requirement (SR) consists of text not shown in the proposed SR markup as being deleted. Specifically, SR 3.5.2.4 is missing the operafing parameter data (i.e., System, Flow Rate, Pumps, Pressure), as per TSTF-542, Revision 2. |
| | Request: |
| | Please correct the proposed TS markup as appropriate. |
| | DNPS-RAl-3: |
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| ==Background:== | | ==Background:== |
| In Attachment 2, pg. 3.5.2-6 (of the submittal), the NRC staff identified a discrepancy. The current TS SR consists of text not shown in the proposed SR markup as being deleted. Specifically, SR 3.5.2.5 is missing from the proposed markup page. Request: Please correct the proposed TS markup as appropriate. DNPS-RAl-4: | | |
| | In Attachment 2, pg. 3.5.2-6 (of the submittal), the NRC staff identified a discrepancy. The current TS SR consists of text not shown in the proposed SR markup as being deleted. |
| | Specifically, SR 3.5.2.5 is missing from the proposed markup page. |
| | Request: |
| | Please correct the proposed TS markup as appropriate. |
| | DNPS-RAl-4: |
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| ==Background:== | | ==Background:== |
| In Attachment 2 (of the submittal), the NRC staff identified a discrepancy. SR 3.8.2.1 (note 2) has not been revised to show the new title for LCO 3.5.2. Request: Please correct the proposed TS markup as appropriate. 2
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| ==SUBJECT:==
| | In Attachment 2 (of the submittal), the NRC staff identified a discrepancy. SR 3.8.2.1 (note 2) has not been revised to show the new title for LCO 3.5.2. |
| DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3 -REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATIONS TO ADOPT TECHNICAL SPECIFICATION TASK FORCE TRAVELER-542, REVISION 2, "REACTOR PRESSURE VESSEL WATER INVENTORY CONTROL" (CAC NOS. MF9295 AND MF9296) DATED: JULY 11, 2017. DISTRIBUTION: PUBLIC LPL3 R/F RidsNrrDorlLpl3 Resource RidsNrrPMDresden Resource RidsNrrLASRohrer Resource RidsAcrsAcnw_MailCTR Resource ADAMS Accession No.: ML 17191A258 RidsRgn3MailCenter Resource RidsNRRDssStsb Resource RidsNRRDssSrxb Resource , RidsNRRDeEicb Resource RidsNrrDorlDpr Resource LWheeler, NRR OFFICE DORL/LPL3/PM DORL/LPL3/LA DORL/LPL3/BC , DORL/LPL3/PM NAME RHaskell SRohrer DWrona RHaskell DATE 7/10/2017 7/10/2017 7/11/2017 7/11/2017 OFFICIAL RECORD COPY
| | Request: |
| }} | | Please correct the proposed TS markup as appropriate. |
| | 2 |
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| | ML17191A258 OFFICE DORL/LPL3/PM DORL/LPL3/LA DORL/LPL3/BC , DORL/LPL3/PM NAME RHaskell SRohrer DWrona RHaskell DATE 7/10/2017 7/10/2017 7/11/2017 7/11/2017}} |
Letter Sequence RAI |
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MONTHYEARRS-17-029, Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control.2017-02-10010 February 2017
Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control.
Project stage: Request
ML17076A0212017-03-16016 March 2017
NRR E-mail Capture - Acceptance Review - Dresden, Units 2 & 3 - License Amendment Request to Adopt TSTF-542 - OPDRVs (CAC Nos. MF9295/MF9296)
Project stage: Acceptance Review
ML17191A2582017-07-11011 July 2017
RAI Related to License Amendment Request to Revise Technical Specifications to Adopt Technical Specification Task Force Traveler-542, Revision 2 (CAC NOS.MF9295 and MF9296)
Project stage: RAI
RS-17-086, Supplement to Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control.2017-07-13013 July 2017
Supplement to Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control.
Project stage: Supplement
RS-17-173, Supplement to Dresden Nuclear Power Station, Units 2 and 3 Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control2017-12-20020 December 2017
Supplement to Dresden Nuclear Power Station, Units 2 and 3 Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control
Project stage: Supplement
RS-17-174, Additional Supplement to Dresden Nuclear Power Station, Units 2 and 3 - Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control2017-12-21021 December 2017
Additional Supplement to Dresden Nuclear Power Station, Units 2 and 3 - Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control
Project stage: Supplement
ML17272A7832018-01-0808 January 2018
Issuance of Amendments to Adopt TSTF-542 TS Changes (CAC Nos. MF9295 and MF9296; EPID L-2017-LLA-0176)
Project stage: Approval
2017-03-16
[Table View] |
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Category:Letter
MONTHYEARML24303A0712024-11-0404 November 2024
Letter to K. Meshigaud, Chairperson Request to Initiate Section 106 Consultation for SLR of DNP Station
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Letter to J.A. Crawford, Chairman Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0302024-11-0101 November 2024
Letter to D.G. Lankford, Chief Request to Initiate Section 106 Consultation for SLR of DNP Station
RS-24-104, Nuclear Radiological Emergency Plan Document Revision2024-11-0101 November 2024
Nuclear Radiological Emergency Plan Document Revision
ML24303A0492024-11-0101 November 2024
Letter G. Kakkak, Chairwoman Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0552024-11-0101 November 2024
Letter to J. Keys, Chairman Request to Initiate Section 106 Consultation for SLR of DNP Station
IR 05000237/20254012024-11-0101 November 2024
Information Request for the Cyber Security Baseline Inspection, Notification to Perform Inspection 05000237/2025401 05000249/2025401
ML24303A1462024-11-0101 November 2024
Letter to W. Gravelle, Chairperson Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0992024-11-0101 November 2024
Lett to R. Carter, Principal Chief Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0242024-11-0101 November 2024
Letter to D. Kaskaske, Chairman Request to Initiate Section 106 Consultation for SLR of DNP Station
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Letter to V. Jefferson, Chairman Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24291A0252024-11-0101 November 2024
Letter to R. Blanchard Tribal Chairman Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0272024-11-0101 November 2024
Letter to D. Rios, Chairperson Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0532024-11-0101 November 2024
Letter to J. Greendeer, President Request to Initiate Section 106 Consultation for SLR of DNP Station
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Letter to E. Elizondo, Sr. Chairman Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0512024-11-0101 November 2024
Letter to J. Barrett, Chairman Request to Initiate Section 106 Consultation for SLR of DNP Station
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Letter to G. Cheatham, Chairwoman Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0892024-11-0101 November 2024
Letter to M. J. Wesaw, Chair Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0152024-11-0101 November 2024
Letter to C. Harper, Chief Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A1442024-11-0101 November 2024
Letter to V. Kitcheyna, Chairwoman Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A1342024-11-0101 November 2024
Letter to T. Carnes, Chairperson Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A1102024-11-0101 November 2024
Letter to R. Gasco, Chairperson Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0132024-11-0101 November 2024
Letter to B. Barnes, Chairman Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0202024-11-0101 November 2024
Letter to C. Chavers, Chairwoman Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0172024-11-0101 November 2024
Letter to B. Peters, Chairman Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0642024-11-0101 November 2024
Letter to J. Rupnick, Chairman Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A1352024-11-0101 November 2024
Letter to T. Rhodd, Chairperson Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A1172024-11-0101 November 2024
Letter to R. Yob, Chairman Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24303A0602024-11-0101 November 2024
Letter to J. R. Shotton, Chairman Request to Initiate Section 106 Consultation for SLR of DNP Station
ML24291A0202024-10-31031 October 2024
NRC Letter to J. Loichinger Achp Request for Comments Concerning the Environmental Review of DNPS Units 2 and 3 Subsequent License Renewal Application
ML24291A0272024-10-31031 October 2024
NRC Letter to C. Mayer Illinois SHPO Request to Initiate Section 106 Consultation for Subsequent License Renewal of Units 2 and 3
IR 05000237/20240032024-10-29029 October 2024
Integrated Inspection Report 05000237/2024003 and 05000249/2024003
RS-24-102, Supplement to License Amendment Request to Revise Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b, and TSTF-5912024-10-21021 October 2024
Supplement to License Amendment Request to Revise Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b, and TSTF-591
RS-24-103, Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors2024-10-21021 October 2024
Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors
RS-24-080, Request to Replace Formerly Submitted Documents Available in the Agency Documents Access and Management System (ADAMS) with Documents Redacted in .2024-10-16016 October 2024
Request to Replace Formerly Submitted Documents Available in the Agency Documents Access and Management System (ADAMS) with Documents Redacted in .
RS-24-093, Response to Request for Additional Information - Alternative Request to Utilize Code Case OMN-32, Alternative Requirements for Range and Accuracy of Pressure, Flow, and Differential Pressure Instruments Used in Pump Tests2024-10-10010 October 2024
Response to Request for Additional Information - Alternative Request to Utilize Code Case OMN-32, Alternative Requirements for Range and Accuracy of Pressure, Flow, and Differential Pressure Instruments Used in Pump Tests
ML24275A2442024-10-0303 October 2024
Reassignment of the U.S. Nuclear Regulatory Commission Branch Chief, Division of Operating Reactor Licensing
ML24225A2132024-09-26026 September 2024
Relief Request Regarding Examination Coverage for the Fifth Inservice Inspection Interval
ML24253A0942024-09-23023 September 2024
License Renewal Regulatory Audit Regarding the Environmental Review of the License Renewal Application (EPID L-2024-Sle-0002) (Docket Numbers: 50-237 and 50-249)
SVPLTR 24-0030, ISFSI Annual Effluent Release Report2024-09-20020 September 2024
ISFSI Annual Effluent Release Report
ML24270A0332024-09-20020 September 2024
Independent Spent Fuel Storage Installation Annual Radioactive Effluent Release Report
IR 05000237/20244022024-09-19019 September 2024
– Security Baseline Inspection Report 05000237/2024402 and 05000249/2024402 - (Public)
ML24240A1692024-09-18018 September 2024
Cy 2023 Summary of Decommissioning Trust Fund Status
ML24260A2152024-09-16016 September 2024
Confirmation of Initial License Examination
ML24255A8642024-09-0606 September 2024
Rscc Wire & Cable LLC Dba Marmon Industrial Energy & Infrastructure - Part 21 Retraction of Final Notification
ML24249A1362024-09-0404 September 2024
EN 57304 - Westinghouse Electric Company, LLC, Final Report - No Embedded Files. Notification of the Potential Existence of Defects Pursuant to 10 CFR Part 21
ML24239A3972024-08-23023 August 2024
Rssc Wire & Cable LLC Dba Marmon - Part 21 Final Notification - 57243-EN 57243
ML24215A2912024-08-14014 August 2024
Request for Withholding Information from Public Disclosure Alternative Schedule to Complete Decommissioning Beyond 60-Years of Permanent Cessation of Operations
IR 05000237/20240022024-08-14014 August 2024
Integrated Inspection Report 05000237/2024002 and 05000249/2024002
IR 05000237/20240102024-08-0909 August 2024
NRC Age-Related Degradation Inspection Report 05000237/2024010 and 05000249/2024010
2024-09-06
[Table view]
Category:Request for Additional Information (RAI)
MONTHYEARML24142A3352024-05-21021 May 2024
Quad Cities—Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes
ML24066A0872024-03-0404 March 2024
NRR E-mail Capture - Dresden 2 and 3 - Request for Additional Information for Alternative Request I5R-22
ML24067A1242024-03-0101 March 2024
Email to Christian Williams: Request for Additional Information Regarding Dresden Relief Request Dated February 23, 2024
ML23264A7992023-09-21021 September 2023
NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC – Fleet Request – License Amendment Request to Adopt TSTF-580, Revision 1
ML23187A0462023-07-0606 July 2023
Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000237/2023004
ML23110A3202023-04-21021 April 2023
Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection
ML23052A0652023-02-21021 February 2023
NRR E-mail Capture - Dresden Units 2 and 3 - Request for Additional Information for Alternative Request RV-23H
ML23037A9192023-02-0707 February 2023
Request for Information for the NRC Quadrennial Comprehensive Engineering Team Inspection: Inspection Report 05000237/2023011 and 05000249/2023011
ML23019A0132023-01-12012 January 2023
NRR E-mail Capture - Final RAI Dresden 2 and 3 - License Amendment Pertaining to GNF3 Fuel Transition
ML22290A0842022-10-13013 October 2022
NRR E-mail Capture - Dresden 2 and 3 - RAI License Amendment Request Regarding New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies
ML22270A1032022-09-27027 September 2022
Notification of NRC Baseline Inspection and Request for Information (05000249/2022004)
ML22203A0442022-07-21021 July 2022
Request for Additional Information (RAI)
ML22199A2422022-07-13013 July 2022
NRR E-mail Capture - Draft RAI Dresden 2 and 3 Proposed Alternative Related to Sblc Nozzle Inspection for the Sixth Inservice Inspection Interval
ML22041B5362022-02-10010 February 2022
NRR E-mail Capture - Constellation Energy Generation, LLC - Request for Additional Information Regarding Fleet License Amendment Request to Adopt TSTF-541
ML22020A0642022-01-13013 January 2022
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative for Repair of Water Level Instrumentation Partial Penetration Nozzles
ML21256A1902021-09-10010 September 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application
ML21244A4012021-08-10010 August 2021
(Final) Request for Information (RAI) Dresden, Units 1, 2, 3, and ISFSI Request for Exemptions from Portions of 10 CFR 50.47 and 10 CFR 50 Appendix E
ML21190A0192021-07-0808 July 2021
NRR E-mail Capture - Exelon Fleet - Request for Additional Information Regarding Adoption of TSTF-582 and TSTF-583-T
ML21144A2132021-05-24024 May 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application
ML21097A2602021-04-0808 April 2021
Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and Request for Information
ML21096A1752021-04-0606 April 2021
Notification of NRC Fire Protection Team Inspection Request for Information: Inspection Report 05000237/2021011; 05000249/2021011
ML21063A3202021-03-0202 March 2021
RAIs for Dresden, Units 2 and 3, Proposed Defueled Technical Specifications and Revised License Conditions for Permanently Defueled Condition (EPID L-2020-LLA-0239) (E-mail)
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
ML21049A2572021-02-18018 February 2021
Request for Additional Information Byron/Dresden Proposed Changes to Site Emergency Plans to Support Post-Shutdown and Permanently Defueled Conditions (EPID-2020-LLA-0240 & EPID-2020-LLA-0237)
ML20337A4242020-12-0202 December 2020
Information Request for the Cyber-Security Full Implementation Inspection, Notification to Perform Inspection 05000237/2021401 and 05000249/2021401
ML20239A7982020-08-25025 August 2020
NRR E-mail Capture - Exelon Generation Company, LLC - Fleet License Amendment Request to Adopt TSTF-568, Revision 2
ML20231A7432020-08-18018 August 2020
Request for Additional Information (IOLB/HFT-RAI-1) Dresden MSIV LAR
ML20224A3532020-08-11011 August 2020
Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000249/2020004
ML20135H1972020-05-14014 May 2020
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Request to Extend Safety Relief Valve Test Interval
ML20094H0292020-03-27027 March 2020
Final: Dresden, Units 2 & 3 LAR Request for Additional Information to Modify Technical Specifications to Main Steam Isolation Valve Leakage Requirements
ML20071G2242020-03-11011 March 2020
Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and Request for Information
ML19330E1772019-11-25025 November 2019
RAI Dresden/Clinton Request for LAR to Modify TSs Following Adoption of TSTF-542
ML19226A3712019-08-14014 August 2019
Ltr. 08/14/19 Dresden Nuclear Power Station, Unit 2 - Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000237/2019004 (DRS-M.Domke)
ML18330A2382018-11-21021 November 2018
Initial Information Request (Part 1) for the Upcoming Phase IV License Renewal Inspection; Inspection Report 05000237(249)/2019010; E-Mailed 11/21/18 (DRS-J.Corujo-Sandin)
ML18067A1482018-03-0808 March 2018
Enclosurequest for Additional Information (Letter to P. R. Simpson Request for Additional Information Regarding Exelon Generating Company, Llc'S Decommissioning Funding Plan Update for Independent Spent Fuel Storage Installation)
ML17353A9492018-01-0909 January 2018
Supplemental Information Needed for Acceptance of License Amendment Request to Revise Technical Specification Requirements for Secondary Containment
ML18002A4572017-12-22022 December 2017
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ML17360A0082017-12-22022 December 2017
NRR E-mail Capture - Dresden Nuclear Power Station, Units 2 and 3 - RAIs to Support Request to Revise TS 5.5.12 Primary Containment Leakage Rate Testing Program
ML17363A4422017-12-21021 December 2017
Supplemental Request for Information for 50.59 Inspection (DRS-A.Shaikh)
ML17342A7372017-12-0808 December 2017
NRR E-mail Capture - Dresden Nuclear Power Station, Units 2 and 3 - Draft RAIs to Support Request to Revise TS 5.5.12 Primary Containment Leakage Rate Testing Program
ML17191A2582017-07-11011 July 2017
RAI Related to License Amendment Request to Revise Technical Specifications to Adopt Technical Specification Task Force Traveler-542, Revision 2 (CAC NOS.MF9295 and MF9296)
ML17159A6292017-06-0707 June 2017
Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection (Mxg)
ML17062A4912017-03-0303 March 2017
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Fleet Alternative to RPV Threads in Flange Examination (CAC Nos. MF8712-MF8729)
ML16308A1002016-11-10010 November 2016
Request for Additional Information Regarding License Amendment Request to Revise Secondary Containment Access Opening Requirements (Cac. No. MF7325-MF7330)
ML16208A0282016-07-25025 July 2016
Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000249/2016004 (LAS)
ML16172A1112016-06-29029 June 2016
Request for Additional Information Regarding License Amendment Request to Revise Secondary Containment Access Opening Requirements(Cac Nos.MF7325-MF7330)
ML16153A2812016-06-0808 June 2016
Request for Additional Information Related to the License Amendment Request to Increase the Minimum Required Fuel Oil in Each Standby Diesel Generator Fuel Oil Day Tank (CAC Nos. MF7158 and MF7159)
ML16071A2062016-03-15015 March 2016
RAI Regarding License Amendment Request to Revise the Reactor Steam Dome Pressure in Technical Specification 2.1.1, Reactor Core Sls(Cac Nos. MF6640 & MF6644)
ML15329A2462016-01-19019 January 2016
Request for Additional Information Related to the License Amendment Request to Transition to Areva Fuel
ML15232A6702015-09-29029 September 2015
Request for Additional Information Related to Dresden Units 2 and 3 License Amendment Request for Spent Fuel Storage Criticality Methodology
2024-05-21
[Table view] |
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 July 11, 2017 Mr. Bryan C. Hanson Senior Vice President Exelon Generation Company, LLC President and Chief Nuclear Officer (CNO)
Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATIONS TO ADOPT TECHNICAL SPECIFICATION TASK FORCE TRAVELER-542, REVISION 2, "REACTOR PRESSURE VESSEL WATER INVENTORY CONTROL" (CAC NOS. MF9295 AND MF9296)
Dear Mr. Hanson:
By application dated February 10, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17045A006), Exelon Generation Company, LLC (EGC, the licensee), requested to adopt Technical Specifications Task Force (TSTF) Traveler (TSTF-542),
"Reactor Pressure Vessel [RPV] Water Inventory Control [WIC]," Revision 2, which would change the technical specifications (TSs) for Dresden Nuclear Power Station, Units 2 and 3.
TSTF-542, Revision 2, was approved by the U.S. Nuclear Regulatory Commission (NRC) on December 20, 2016 (ADAMS Accession No. ML16343B008). The proposed cha~ges would replace the existing requirements in the TSs related to "operations with the potential to drain the reactor pressure vessel" with revised TSs providing an alternative for RPV WIC. These alternative requirements would protect Safety Limit 2.1.1.3, which requires RPV water level to be greater than the top of active fuel.
During the NRC staff review it was determined that additional information is required to complete the staff's safety evaluation. The specific request for additional information (RAI) is addressed in the enclosure to this letter. On June 28, 2017, a draft set of these R.Als was emailed to Mr. Mitch Mathews of your staff for review. In a follow-up phone conversation with NRC staff on July 7, 2017, Mr. Mathews stated that EGC did not require any clarifications to the RAls. He agreed to provide the NRC with EGC's responses no later than August 7, 2017.
The NRC staff considers that timely responses to the RAls ensures sufficient time is available for staff review and to contribute toward the NRC's goal of efficient and effective use of staff resources.
B. Hanson If circumstances result in the need to revise the requested response d-.=a~te,,._,_.~...-se contact me at (301) 415-1129, or by email at Russell.Haskell@nrc.gov.
Russell S. Haskell, Project Manager Plant Licensing Branch Ill Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-237 and 50-249
Enclosure:
Request for Additional Information cc w/encl: Distribution via Listserv
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 REQUEST FOR ADDITIONAL INFORMATION REGARDING PROPOSED LICENSE AMENDMENT APPLICATION TO REVISE TECHNICAL SPECIFICATIONS TO ADOPT TECHNICAL SPECIFICATION TASK FORCE TRAVELER-542. REVISION 2.
"REACTOR PRESSURE VESSEL WATER INVENTORY CONTROL" EXELON GENERATION COMPANY. LLC DRESDEN NUCLEAR POWER STATION - UNITS 2 AND 3 DOCKET NOS. 50-237 AND 50-249 By application dated February 10, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17045A006), Exelon Generation Company, LLC (EGC, the licensee), requested to adopt Technical Specifications Task Force (TSTF) Traveler (TSTF-542),
"Reactor Pressure Vessel [RPV] Water Inventory Control [WIC]," Revision 2, which would change the technical specifications (TSs) for Dresden Nuclear Power Station, Units 2 and 3.
TSTF-542, Revision 2, was approved by the U.S. Nuclear Regulatory Commission (NRC) on December 20, 2016 (ADAMS Accession No. ML16343B008). The proposed changes would replace the existing requirements in the TSs related to "operations with the potential to drain the reactor pressure vessel" with revised TSs providing an alternative for RPV WIC. These alternative requirements would protect Safety Limit 2.1.1.3, which requires RPV water level to be greater than the top of active fuel.
The NRC staff has reviewed the information the licensee provided that supports the proposed amendment. The staff requests the licensee to address the following issues:
DNPS-RAl-1:
Background:
In Attachment 2, pg. 3.5.2-1 (of the submittal), the staff identified a discrepancy in the limiting condition for operation (LCO) 3.5.2, Applicability proposed markup. The current TS LCO consists of text not shown in the proposed LCO markup as being deleted. Specifically, there is missing text associated with the MODE 5 exception (i.e., "except with the spent fuel storage pool gates removed and water level ~ 23 ft. over the top of the reactor pressure vessel flange").
Request:
Please correct the proposed TS markup as appropriate.
Enclosure
DNPS-RAl-2:
Background:
In Attachment 2, pg. 3.5.2-6 (of the submittal), the NRC staff identified a discrepancy. The current TS surveillance requirement (SR) consists of text not shown in the proposed SR markup as being deleted. Specifically, SR 3.5.2.4 is missing the operafing parameter data (i.e., System, Flow Rate, Pumps, Pressure), as per TSTF-542, Revision 2.
Request:
Please correct the proposed TS markup as appropriate.
DNPS-RAl-3:
Background:
In Attachment 2, pg. 3.5.2-6 (of the submittal), the NRC staff identified a discrepancy. The current TS SR consists of text not shown in the proposed SR markup as being deleted.
Specifically, SR 3.5.2.5 is missing from the proposed markup page.
Request:
Please correct the proposed TS markup as appropriate.
DNPS-RAl-4:
Background:
In Attachment 2 (of the submittal), the NRC staff identified a discrepancy. SR 3.8.2.1 (note 2) has not been revised to show the new title for LCO 3.5.2.
Request:
Please correct the proposed TS markup as appropriate.
2
ML17191A258 OFFICE DORL/LPL3/PM DORL/LPL3/LA DORL/LPL3/BC , DORL/LPL3/PM NAME RHaskell SRohrer DWrona RHaskell DATE 7/10/2017 7/10/2017 7/11/2017 7/11/2017
