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| | issue date = 06/08/2016 | | | issue date = 06/08/2016 |
| | title = Second 10 CFR 54.21(b) Annual Amendment to the License Renewal Application | | | title = Second 10 CFR 54.21(b) Annual Amendment to the License Renewal Application |
| | author name = Gallagher M P | | | author name = Gallagher M |
| | author affiliation = Exelon Generation Co, LLC | | | author affiliation = Exelon Generation Co, LLC |
| | addressee name = | | | addressee name = |
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| =Text= | | =Text= |
| {{#Wiki_filter:Michael P. Gallagher Exelon Nuclear Exelon Generation Vice President License Renewal and Decommissioning RS-16-128 June 8, 2016 200 Exelon Way Kennett Square, PA 19348 610 765 5958 Office 610 765 5658 Fax www.exeloncorp.com m1chaelp.gallagher@exeloncorp | | {{#Wiki_filter:Michael P. Gallagher Exelon Nuclear Exelon Generation Vice President License Renewal and Decommissioning 200 Exelon Way Kennett Square, PA 19348 610 765 5958 Office 610 765 5658 Fax www.exeloncorp.com m1chaelp.gallagher@exeloncorp.com 10 CFR 50 10 CFR 51 10 CFR 54 RS-16-128 June 8, 2016 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 LaSalle County Station, Units 1 and 2 Facility Operating License Nos. NPF-11 and NPF-18 NRC Docket Nos. 50-373 and 50-374 |
| .com 10 CFR 50 10 CFR 51 10 CFR 54 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 | |
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| ==Subject:== | | ==Subject:== |
| References
| | Second 10 CFR 54.21 (b) Annual Amendment to the LaSalle County Station, Units 1 and 2, License Renewal Application (TAC Nos. MF5347 and MF5346) |
| : LaSalle County Station, Units 1 and 2 Facility Operating License Nos. NPF-11 and NPF-18 NRC Docket Nos. 50-373 and 50-374 Second 10 CFR 54.21 (b) Annual Amendment to the LaSalle County Station, Units 1 and 2, License Renewal Application (TAC Nos. MF5347 and MF5346) 1. Letter from Michael P. Gallagher , Exelon Generation Company LLC (Exelon), to NRC Document Control Desk, dated December 9, 2014, "Application for Renewed Operating Licenses" 2. Letter from Michael P. Gallagher, Exelon , to NRC Document Control Desk, dated December 2, 2015, "10 CFR 54.21(b) Annual Amendment to the LaSalle County Station, Units 1 and 2, License Renewal Application (TAC Nos. MF5347 and MF5346)" In Reference 1, Exelon Generation Company, LLC (Exelon) submitted the License Renewal Application (LRA) for the LaSalle County Station (LSCS), Units 1 and 2. Reference 2 provided the first annual amendment to the LRA , as required by 10 CFR 54.21 (b). Exelon has completed a review to identify any current licensing basis (CLB) changes made since submittal of the Reference 2 letter, which have a material effect on the content of the LRA, including the FSAR Supplement.
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| This amendment identifies two (2) changes to the CLB that are considered to materially affect the contents of the LSCS LRA. Enclosure A contains a description of these CLB changes. Enclosure B contains updates to sections of the LRA affected by the changes. | | ==References:== |
| June 8, 2016 U.S. Nuclear Regulatory Commission Page 2 This submittal satisfies the requirement within 10 CFR 54.21 (b) to submit an amendment addressing any such changes at least three months before scheduled completion of NRC review of the LRA. There are no new or revised regulatory commitments contained in this letter. If you have any questions, please contact Mr. John Hufnagel, Licensing Lead, LaSalle License Renewal Project, at 610-765-5829. | | : 1. Letter from Michael P. Gallagher, Exelon Generation Company LLC (Exelon), |
| I declare under penalty of perjury that the foregoing is true and correct. Executed on -OS -2':>/ ( Respectfully, Vice President | | to NRC Document Control Desk, dated December 9, 2014, "Application for Renewed Operating Licenses" |
| -License Renewal Projects Exelon Generation Company, LLC | | : 2. Letter from Michael P. Gallagher, Exelon, to NRC Document Control Desk, dated December 2, 2015, "10 CFR 54.21(b) Annual Amendment to the LaSalle County Station, Units 1 and 2, License Renewal Application (TAC Nos. MF5347 and MF5346)" |
| | In Reference 1, Exelon Generation Company, LLC (Exelon) submitted the License Renewal Application (LRA) for the LaSalle County Station (LSCS), Units 1 and 2. Reference 2 provided the first annual amendment to the LRA, as required by 10 CFR 54.21 (b). |
| | Exelon has completed a review to identify any current licensing basis (CLB) changes made since submittal of the Reference 2 letter, which have a material effect on the content of the LRA, including the FSAR Supplement. This amendment identifies two (2) changes to the CLB that are considered to materially affect the contents of the LSCS LRA. Enclosure A contains a description of these CLB changes. Enclosure B contains updates to sections of the LRA affected by the changes. |
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| | June 8, 2016 U.S. Nuclear Regulatory Commission Page 2 This submittal satisfies the requirement within 10 CFR 54.21 (b) to submit an amendment addressing any such changes at least three months before scheduled completion of NRC review of the LRA. |
| | There are no new or revised regulatory commitments contained in this letter. |
| | If you have any questions, please contact Mr. John Hufnagel, Licensing Lead, LaSalle License Renewal Project, at 610-765-5829. |
| | I declare under penalty of perjury that the foregoing is true and correct. |
| | Executed on ~6 -OS - 2':>/( |
| | Respectfully, |
| | ~~ |
| | Vice President - License Renewal Projects Exelon Generation Company, LLC |
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| ==Enclosures:== | | ==Enclosures:== |
| | A. Description of CLB Changes that Impact the LRA Associated with the Second 10 CFR 54.21 (b) Annual Amendment B. LSCS LRA Updates Resulting from CLB Changes Identified in the Second 10 CFR 54.21(b) Annual Amendment cc: Regional Administrator - NRC Region Ill NRC Project Manager (Safety Review), NRR-DLR NRC Project Manager (Environmental Review), NRR-DLR NRC Project Manager, NRR-DORL- LaSalle County Station NRC Senior Resident Inspector, LaSalle County Station Illinois Emergency Management Agency - Division of Nuclear Safety |
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| A. Description of CLB Changes that Impact the LRA Associated with the Second 10 CFR 54.21 (b) Annual Amendment B. LSCS LRA Updates Resulting from CLB Changes Identified in the Second 10 CFR 54.21(b) Annual Amendment cc: Regional Administrator
| | RS-16-128 Enclosure A Page 1 of 1 Enclosure A Description of CLB Changes that Impact the LRA Associated with the Second 10 CFR 54.21(b) Annual Amendment |
| -NRC Region Ill NRC Project Manager (Safety Review), NRR-DLR NRC Project Manager (Environmental Review), NRR-DLR NRC Project Manager, NRR-DORL-LaSalle County Station NRC Senior Resident Inspector, LaSalle County Station Illinois Emergency Management Agency -Division of Nuclear Safety RS-16-128 Enclosure A Page 1 of 1 Enclosure A Description of CLB Changes that Impact the LRA Associated with the Second 10 CFR 54.21(b) Annual Amendment
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| : 1) Addition of Robust FLEX Storage Building (Building #22) | | : 1) Addition of Robust FLEX Storage Building (Building #22) |
| In response to NRC Order EA 12-049 for implementation of Flexible Coping Strategies (FLEX) for external events beyond the orig inal plant design basis (BDBEE), an additional storage building was installed to house FLEX equipment at LSCS. The Robust FLEX Storage Building (Building #22) is a stand-alone, cast-in-place, reinforced concrete structure with a floating slab supported on concrete strip footings resting on soil. The building is located on the north portion of the LSCS site, outside of the plant's main power block, north of the Independent Spent Fuel Storage Installation (ISFSI) pad. | | In response to NRC Order EA 12-049 for implementation of Flexible Coping Strategies (FLEX) for external events beyond the original plant design basis (BDBEE), an additional storage building was installed to house FLEX equipment at LSCS. The Robust FLEX Storage Building (Building #22) is a stand-alone, cast-in-place, reinforced concrete structure with a floating slab supported on concrete strip footings resting on soil. The building is located on the north portion of the LSCS site, outside of the plants main power block, north of the Independent Spent Fuel Storage Installation (ISFSI) pad. |
| Robust FLEX Storage Building (Building #22) is not in scope as it is nonsafety-related and is separated from safety-related systems, structures, and components such that the structure's failure would not impact a safety-related function. This building has been included in the Miscellaneous Not In Scope Structures. LRA Table 2.2-1, Plant Level Scoping Results, Comment #1 is revised as shown in Enclosure B to add this building to the list of not in scope structures. | | Robust FLEX Storage Building (Building #22) is not in scope as it is nonsafety-related and is separated from safety-related systems, structures, and components such that the structures failure would not impact a safety-related function. This building has been included in the Miscellaneous Not In Scope Structures. LRA Table 2.2-1, Plant Level Scoping Results, Comment #1 is revised as shown in Enclosure B to add this building to the list of not in scope structures. |
| : 2) Replacement of Carbon Steel Vacuum Breakers with Stainless Steel Vacuum Breakers in the Unit 1 Reactor Core Isolation Cooling (RCIC) System A design change to the RCIC System was performed to replace carbon steel vacuum breakers with stainless steel vacuum breakers in the RCIC turbine exhaust piping. The carbon steel vacuum breakers were swing type check valves which required a significant amount of rework associated with failed local leak rate tests. The replacement stainless steel valves are piston in-line check valves whic h offer improved reliability over the original carbon steel swing check valves. LRA Table 3.2.2-3, Reactor Core Isolation Cooling System Summary of Aging Management Evaluation, is revised as shown in Enclosure B to include the environments of Air - Indoor Uncontrolled (External) and Condensation (Internal) for stainless steel valve bodies with a pressure boundary intended function. The associated aging effects and aging management line items are also identified. | | : 2) Replacement of Carbon Steel Vacuum Breakers with Stainless Steel Vacuum Breakers in the Unit 1 Reactor Core Isolation Cooling (RCIC) System A design change to the RCIC System was performed to replace carbon steel vacuum breakers with stainless steel vacuum breakers in the RCIC turbine exhaust piping. The carbon steel vacuum breakers were swing type check valves which required a significant amount of rework associated with failed local leak rate tests. The replacement stainless steel valves are piston in-line check valves which offer improved reliability over the original carbon steel swing check valves. LRA Table 3.2.2-3, Reactor Core Isolation Cooling System Summary of Aging Management Evaluation, is revised as shown in Enclosure B to include the environments of Air - Indoor Uncontrolled (External) and Condensation (Internal) for stainless steel valve bodies with a pressure boundary intended function. The associated aging effects and aging management line items are also identified. |
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| RS-16-128 Enclosure B Page 1 of 3 Enclosure B LSCS LRA Updates Resulting from CLB Changes Identified in the Second 10 CFR 54.21(b) Annual Amendment | | RS-16-128 Enclosure B Page 1 of 3 Enclosure B LSCS LRA Updates Resulting from CLB Changes Identified in the Second 10 CFR 54.21(b) Annual Amendment |
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| RS-16-128 Enclosure B Page 2 of 3 As a result of the response to NRC Order EA 12-049 (Item 1 of Enclosure A), LRA Table 2.2-1, Plant Level Scoping Results, Comment #1 starting on page 2.2-5, is revised as shown below. | | RS-16-128 Enclosure B Page 2 of 3 As a result of the response to NRC Order EA 12-049 (Item 1 of Enclosure A), LRA Table 2.2-1, Plant Level Scoping Results, Comment #1 starting on page 2.2-5, is revised as shown below. |
| Additions are shown in bolded italics. 1. The Miscellaneous Not In Scope Structures are nonsafety-related and provide support, shelter, and protection for personnel, stored materials, or nonsafety-related systems, structures, and components (SSC's) that do not perform an intended function for license renewal. These nonsafety-related structures are also separated from safety-related systems, structures, and components such that the structures' failure would not impact a safety-related function. Therefore, the following structures are not within the scope of license renewal: Administration Building (also known as the South Service Building or New Service Building), Building #30 (Records Storage Vault or Records Storage Building), IDNS (Illinois Department of Nuclear Safety) Building, Project Management Field Office, Training Building, Maintenance Shop, Building #1 (contractor fab shop, radiological outage, equip storage), Road Maintenance Building, Weld Shop, Warehouse (Stores Warehouse), Warehouses 3 - 6, Contractor PreFab Shop, Shad Net Maintenance Building, In-Processing Facility, MAF (Main Access Facility), Security Checkpoint, Building #11 (TSC and Security Diesels), NAF (Old Permanent Gatehouse or Gatehouse), Sewage Treatment Plant, Water Softener Building (Building #41), MUDS (Makeup Demineralizer System) Trailers, Pump Houses: (Building #40), River Screen House, Lake Blowdown Outfall Structure, Transporter Building, Hazardous/Mixed Waste Storage Facility (Building #20), Radwaste Storage, Building #33, Filling Station, Station Heat Chiller Pad, Fish Hatchery, Robust FLEX Storage Building (Building #22), Robust FLEX Storage Building (Building #23), and Commercial FLEX Storage Building (Building #24). | | Additions are shown in bolded italics. |
| | | : 1. The Miscellaneous Not In Scope Structures are nonsafety-related and provide support, shelter, and protection for personnel, stored materials, or nonsafety-related systems, structures, and components (SSCs) that do not perform an intended function for license renewal. These nonsafety-related structures are also separated from safety-related systems, structures, and components such that the structures failure would not impact a safety-related function. Therefore, the following structures are not within the scope of license renewal: Administration Building (also known as the South Service Building or New Service Building), Building #30 (Records Storage Vault or Records Storage Building), IDNS (Illinois Department of Nuclear Safety) Building, Project Management Field Office, Training Building, Maintenance Shop, Building #1 (contractor fab shop, radiological outage, equip storage), Road Maintenance Building, Weld Shop, Warehouse (Stores Warehouse), Warehouses 3 - 6, Contractor PreFab Shop, Shad Net Maintenance Building, In-Processing Facility, MAF (Main Access Facility), Security Checkpoint, Building #11 (TSC and Security Diesels), NAF (Old Permanent Gatehouse or Gatehouse), Sewage Treatment Plant, Water Softener Building (Building #41), MUDS (Makeup Demineralizer System) Trailers, Pump Houses: (Building #40), River Screen House, Lake Blowdown Outfall Structure, Transporter Building, Hazardous/Mixed Waste Storage Facility (Building #20), Radwaste Storage, Building #33, Filling Station, Station Heat Chiller Pad, Fish Hatchery, Robust FLEX Storage Building (Building #22), |
| RS-16-128 Enclosure B Page 3 of 3 As a result of the replacement of the Unit 1 carbon steel RCIC turbine exhaust vacuum breakers with stainless steel vacuum breakers (Item 2 of Enclosure A), LRA Table 3.2.2-3, Reactor Core Isolation Cooling System Summary of Aging Management Evaluation starting on page 3.2-55, is revised as shown below. Additions are indicated with bolded italics. Table 3.2.2-3 Reactor Core Isolation Cooling System (Continued)
| | Robust FLEX Storage Building (Building #23), and Commercial FLEX Storage Building (Building #24). |
| Component Type Intended Function Material Environment Aging Effect Requiring Management Aging Management Programs NUREG-1801 Item Table 1 Item Notes Valve Body
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| Pressure Boundary
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| Stainless Steel Air - Indoor Uncontrolled (External) | | RS-16-128 Enclosure B Page 3 of 3 As a result of the replacement of the Unit 1 carbon steel RCIC turbine exhaust vacuum breakers with stainless steel vacuum breakers (Item 2 of Enclosure A), LRA Table 3.2.2-3, Reactor Core Isolation Cooling System Summary of Aging Management Evaluation starting on page 3.2-55, is revised as shown below. Additions are indicated with bolded italics. |
| None None V.F.EP-18 3.2.1-63 A Air - Outdoor (External) Cracking External Surfaces Monitoring of Mechanical Components (B.2.1.24) V.D2.EP-103 3.2.1-7 A Loss of Material External Surfaces Monitoring of Mechanical Components (B.2.1.24) V.D2.EP-107 3.2.1-4 A Condensation (Internal) Loss of Material Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B.2.1.25) V.D2.EP-61 3.2.1-48 A Treated Water (Internal) Loss of Material One-Time Inspection (B.2.1.21) V.D2.EP-73 3.2.1-17 A Water Chemistry (B.2.1.2)V.D2.EP-73 3.2.1-17 B}} | | Table 3.2.2-3 Reactor Core Isolation Cooling System (Continued) |
| | Component Type Intended Function Material Environment Aging Effect Requiring Aging Management NUREG-1801 Table 1 Item Notes Management Programs Item Valve Body Pressure Boundary Stainless Steel Air - Indoor None None V.F.EP-18 3.2.1-63 A Uncontrolled (External) |
| | Air - Outdoor (External) Cracking External Surfaces V.D2.EP-103 3.2.1-7 A Monitoring of Mechanical Components (B.2.1.24) |
| | Loss of Material External Surfaces V.D2.EP-107 3.2.1-4 A Monitoring of Mechanical Components (B.2.1.24) |
| | Condensation Loss of Material Inspection of Internal V.D2.EP-61 3.2.1-48 A (Internal) Surfaces in Miscellaneous Piping and Ducting Components (B.2.1.25) |
| | Treated Water (Internal) Loss of Material One-Time Inspection V.D2.EP-73 3.2.1-17 A (B.2.1.21) |
| | Water Chemistry (B.2.1.2) V.D2.EP-73 3.2.1-17 B}} |
Letter Sequence Other |
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TAC:MF5346, Control Room Habitability (Approved, Closed) TAC:MF5347, Control Room Habitability (Approved, Closed) |
Results
Other: ML15104A782, ML15196A045, ML15196A115, ML16202A033, RS-15-193, Responds to NRC Requests for Additional Information, Set 5, Dated July 7, 2015 Related to the License Renewal Application, RS-15-194, Responds to NRC Requests for Additional Information, Set 6, Dated July 7, 2015 Related to the License Renewal Application, RS-15-305, Corrections to the License Renewal Application Dated December 9, 2014, RS-15-306, Submittal of 10 CFR 54.21(b) Annual Amendment to the License Renewal Application, RS-16-033, Update to Commitment 47 Related to the License Renewal Application, RS-16-068, Comments on the Safety Evaluation Report with Open Items, Related to the License Renewal Application, RS-16-128, Second 10 CFR 54.21(b) Annual Amendment to the License Renewal Application
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MONTHYEARML15104A7822015-05-0808 May 2015 Scoping and Screening Methodology Audit Report Regarding LaSalle County Station, Units 1 and 2 Project stage: Other ML15111A1372015-05-14014 May 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 1 (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15125A1982015-05-29029 May 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 2 (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15131A4132015-06-0808 June 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 3 (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15140A1922015-06-0808 June 2015 Summary of Telephone Conference Call Held on May 13, 2015, Between the U.S. Nuclear Regulatory Commission and Exelon Generation Co., LLC, Concerning Requests for Additional Information, Set 2 Pertaining to the Lasalle County Station License Project stage: RAI ML15146A2622015-06-19019 June 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application-Set 4 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-15-165, Response to NRC Requests for Additional Information, Set 2, Dated May 29, 2015 Related to the License Renewal Application2015-06-25025 June 2015 Response to NRC Requests for Additional Information, Set 2, Dated May 29, 2015 Related to the License Renewal Application Project stage: Response to RAI RS-15-171, Response to NRC Requests for Additional Information, Set 3, Dated June 8, 2015, Related to the License Renewal Application2015-07-0101 July 2015 Response to NRC Requests for Additional Information, Set 3, Dated June 8, 2015, Related to the License Renewal Application Project stage: Response to RAI ML15159A9002015-07-0606 July 2015 Telephone Conference Call Held on May 20, 2015, Between the U.S. Nuclear Regulatory Commission and Exelon Generation Co., LLC, Requests for Additional Information, Set 3 Pertaining to the LaSalle County Station License Renewal Application ( Project stage: RAI ML15163A0712015-07-0707 July 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 6 (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15159A2082015-07-0707 July 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 5 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-15-180, Response to NRC Requests for Additional Information, Set 4, Dated June 19, 2015 Related to the License Renewal Application2015-07-15015 July 2015 Response to NRC Requests for Additional Information, Set 4, Dated June 19, 2015 Related to the License Renewal Application Project stage: Response to RAI RS-15-198, Request for Schedule Change Related to Advisory Committee on Reactor Safeguards (ACRS) Subcommittee Review of License Renewal Application (TAC Nos. MF5347 and MF5346)2015-07-16016 July 2015 Request for Schedule Change Related to Advisory Committee on Reactor Safeguards (ACRS) Subcommittee Review of License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: Request ML15196A5292015-07-27027 July 2015 Requests for Additional Information for the Review of the Lasalle County Station, Units 1 and 2 License Renewal Application - Set 7 (Tac Nos. MF5347 and MF5346) Project stage: RAI RS-15-194, Responds to NRC Requests for Additional Information, Set 6, Dated July 7, 2015 Related to the License Renewal Application2015-08-0606 August 2015 Responds to NRC Requests for Additional Information, Set 6, Dated July 7, 2015 Related to the License Renewal Application Project stage: Other RS-15-193, Responds to NRC Requests for Additional Information, Set 5, Dated July 7, 2015 Related to the License Renewal Application2015-08-0606 August 2015 Responds to NRC Requests for Additional Information, Set 5, Dated July 7, 2015 Related to the License Renewal Application Project stage: Other ML15204A6302015-08-18018 August 2015 Requests for Additional Information for the Review of the LaSalle County Station Units 1 & 2 License Renewal Application - Set 9 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-15-223, Response to NRC Requests for Additional Information, Set 7, Dated July 27, 2015; and a Correction to Information Associated with the Set 2 Response to RAI 8.2.1.20-2, Related to the Renewal Application2015-08-26026 August 2015 Response to NRC Requests for Additional Information, Set 7, Dated July 27, 2015; and a Correction to Information Associated with the Set 2 Response to RAI 8.2.1.20-2, Related to the Renewal Application Project stage: Response to RAI ML15229A0192015-08-27027 August 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 10 (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15217A5412015-08-28028 August 2015 June 9, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 5 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15217A5642015-08-28028 August 2015 June 3, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 4 Pertaining to the LaSalle County Station License Renewal Application (Tac Nos. MF5347 and MF5346) Project stage: RAI ML15217A5752015-08-28028 August 2015 June 10, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 4 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15219A2772015-08-28028 August 2015 June 23, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 6 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15222A0062015-08-28028 August 2015 August 5, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 9 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15195A3382015-08-28028 August 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application-Set 8 (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15222A0082015-08-28028 August 2015 July 22, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 8 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15222A0152015-08-28028 August 2015 July 8, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 7 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15224A9352015-08-28028 August 2015 August 11, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 9 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15244B3532015-09-14014 September 2015 RAI for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 11 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-15-232, Response to NRC Requests for Additional Information, Set 9, Dated August 18, 2015 Related to the License Renewal Application2015-09-15015 September 2015 Response to NRC Requests for Additional Information, Set 9, Dated August 18, 2015 Related to the License Renewal Application Project stage: Response to RAI RS-15-238, Response to NRC Requests for Additional Information, Set 10, Dated August 27, 2015 Related to License Renewal Application2015-09-17017 September 2015 Response to NRC Requests for Additional Information, Set 10, Dated August 27, 2015 Related to License Renewal Application Project stage: Response to RAI ML15196A1152015-09-22022 September 2015 Aging Management Programs Audit Report Regarding Lasalle County Station, Units 1 and 2, Project stage: Other ML15196A0452015-09-22022 September 2015 Aging Management Programs Audit Report Regarding Lasalle County Station, Units 1 and 2, (TAC Nos. MF5347 and MF5346). Cover Letter Project stage: Other RS-15-239, Response to NRC Requests for Additional Information, Set 8, Dated August 28, 2015 Related to the License Renewal Application2015-09-28028 September 2015 Response to NRC Requests for Additional Information, Set 8, Dated August 28, 2015 Related to the License Renewal Application Project stage: Response to RAI RS-15-256, Response to NRC Request for Additional Information, Set 11, Dated September 14, 2015 Related to the License Renewal Application2015-10-0808 October 2015 Response to NRC Request for Additional Information, Set 11, Dated September 14, 2015 Related to the License Renewal Application Project stage: Response to RAI ML15208A0522015-10-22022 October 2015 Schedule Revision for the Review of the Lasalle County Station License Renewal Application (TAC Nos. MF5347 & MF5346) Project stage: Approval ML15271A0212015-10-23023 October 2015 Requests for Additional Information for the Review of the Lasalle County Station, Units 1 and 2 License Renewal Application-Set 12 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-15-281, Response to NRC Requests for Additional Information, Set 12, Dated October 23, 2015 Related to the License Renewal Application2015-10-29029 October 2015 Response to NRC Requests for Additional Information, Set 12, Dated October 23, 2015 Related to the License Renewal Application Project stage: Response to RAI ML15300A3662015-11-0303 November 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 13 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-15-305, Corrections to the License Renewal Application Dated December 9, 20142015-12-0202 December 2015 Corrections to the License Renewal Application Dated December 9, 2014 Project stage: Other RS-15-306, Submittal of 10 CFR 54.21(b) Annual Amendment to the License Renewal Application2015-12-0202 December 2015 Submittal of 10 CFR 54.21(b) Annual Amendment to the License Renewal Application Project stage: Other RS-15-292, Response to NRC Requests for Additional Information, Set 13, Dated November 3, 2015 Related to the License Renewal Application2015-12-10010 December 2015 Response to NRC Requests for Additional Information, Set 13, Dated November 3, 2015 Related to the License Renewal Application Project stage: Response to RAI ML15272A4002015-12-11011 December 2015 Summary of Teleconference Held on September 24, 2015, Between the NRC and Exelon Generation Co., LLC, Concerning RAI Set 10 Response Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15301A1892015-12-14014 December 2015 Request for Additional Information for the Review of the LaSalle County Station, Units 1 & 2 License Renewal Application - Set 14 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-16-003, Responses to NRC Requests for Additional Information, Set 14, Dated December 14, 2015, and Two Additional Commitment Implementation Schedule Clarifications, Related to the License Renewal Application2016-01-0707 January 2016 Responses to NRC Requests for Additional Information, Set 14, Dated December 14, 2015, and Two Additional Commitment Implementation Schedule Clarifications, Related to the License Renewal Application Project stage: Response to RAI ML15357A2812016-01-0707 January 2016 Summary of Teleconference Held on December 22, 2015, Between the NRC and Exelon Generation Co., LLC, Concerning the LaSalle County Station License Renewal Application (Tac Nos. MF5347 and MF5346) Project stage: Meeting RS-16-007, Supplemental Information Associated with Implementation of BWRVIP-25, Core Plate Inspection and Flaw Evaluation Guidelines, Related to the License Renewal Application2016-01-14014 January 2016 Supplemental Information Associated with Implementation of BWRVIP-25, Core Plate Inspection and Flaw Evaluation Guidelines, Related to the License Renewal Application Project stage: Supplement ML16021A3252016-01-29029 January 2016 Summary of Teleconference Held on January 21, 2016, Between the NRC and Exelon Generation Co., LLC, Concerning RAI 4.2.10-1 Response Project stage: RAI RS-16-033, Update to Commitment 47 Related to the License Renewal Application2016-02-0101 February 2016 Update to Commitment 47 Related to the License Renewal Application Project stage: Other ML15344A3542016-02-16016 February 2016 Requests for Additional Information for the Review of the Lasalle County, Units 1 and 2 License Renewal Application Set 15 (TAC Nos. MF5347 and MF5346) Project stage: RAI 2015-07-16
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Category:Letter type:RS
MONTHYEARRS-23-120, Supplemental Information Letter for Part 73 Exemption Request - Responses to Request for Confirmatory Information2023-11-10010 November 2023 Supplemental Information Letter for Part 73 Exemption Request - Responses to Request for Confirmatory Information RS-23-103, Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-10-13013 October 2023 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation RS-23-097, Constellation Energy Generation, LLC, Advisement of Leadership Changes and Submittal of Updated Standard Practice Procedures Plans2023-10-12012 October 2023 Constellation Energy Generation, LLC, Advisement of Leadership Changes and Submittal of Updated Standard Practice Procedures Plans RS-23-080, Constellation Energy Generation, LLC, Application to Revise Technical Specifications to Adopt TSTF-264-A, Revision 0, 3.3.9 and 3.3.10 - Delete Flux Monitors Specific Overlap Requirement SRs2023-08-30030 August 2023 Constellation Energy Generation, LLC, Application to Revise Technical Specifications to Adopt TSTF-264-A, Revision 0, 3.3.9 and 3.3.10 - Delete Flux Monitors Specific Overlap Requirement SRs RS-23-087, Revision to Approved Alternatives Associated with the Use of the BWRVIP Guidelines in Lieu of Specific ASME Code Requirements on Reactor2023-08-0404 August 2023 Revision to Approved Alternatives Associated with the Use of the BWRVIP Guidelines in Lieu of Specific ASME Code Requirements on Reactor RS-23-084, Response to Request for Additional Information Regarding the Application to Revise Design Basis to Allow Use of Plastic Section Properties in Lower Downcomer Braces Analysis2023-07-24024 July 2023 Response to Request for Additional Information Regarding the Application to Revise Design Basis to Allow Use of Plastic Section Properties in Lower Downcomer Braces Analysis RS-23-077, Response to NRC Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations2023-06-16016 June 2023 Response to NRC Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations RS-23-042, Application to Revise Technical Specifications to Adopt TSTF-580, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling2023-05-25025 May 2023 Application to Revise Technical Specifications to Adopt TSTF-580, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling RS-23-049, Constellation Energy Generation, LLC, Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations2023-03-23023 March 2023 Constellation Energy Generation, LLC, Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations RS-23-048, Exigent Amendment Request to Revise Design Basis Related to Seismic Requirements2023-03-0707 March 2023 Exigent Amendment Request to Revise Design Basis Related to Seismic Requirements RS-23-045, Constellation Energy Generation, LLC Submittal of Fitness for Duty Performance Data Reports for 2022 Per 10 CFR 26.717(c) & 10 CFR 26.2032023-02-28028 February 2023 Constellation Energy Generation, LLC Submittal of Fitness for Duty Performance Data Reports for 2022 Per 10 CFR 26.717(c) & 10 CFR 26.203 RS-23-037, Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors for LaSalle County Station2023-02-22022 February 2023 Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors for LaSalle County Station RS-23-003, Constellation Energy Generation, LLC, Summary of Changes to Quality Assurance Topical Report, NO-AA-10, and Decommissioning Quality Assurance Program, NO-DC-102023-01-31031 January 2023 Constellation Energy Generation, LLC, Summary of Changes to Quality Assurance Topical Report, NO-AA-10, and Decommissioning Quality Assurance Program, NO-DC-10 RS-22-085, Application to Revise Design Basis to Allow Use of Plastic Section Properties in Lower Downcomer Braces Analysis2023-01-12012 January 2023 Application to Revise Design Basis to Allow Use of Plastic Section Properties in Lower Downcomer Braces Analysis RS-23-006, Supplemental Information Regarding License Amendment Request Relocation of Pressure and Temperature Limit Curves to the Pressure and Temperature Limits Report2023-01-10010 January 2023 Supplemental Information Regarding License Amendment Request Relocation of Pressure and Temperature Limit Curves to the Pressure and Temperature Limits Report RS-22-126, Constellation Energy Generation, LLC - Request to Use Provisions of a Later Edition of the ASME Boiler and Pressure Vessel Code, Section XI2022-11-30030 November 2022 Constellation Energy Generation, LLC - Request to Use Provisions of a Later Edition of the ASME Boiler and Pressure Vessel Code, Section XI RS-22-109, Response to Request for Additional Information License Amendments Related to Fuel Storage2022-10-12012 October 2022 Response to Request for Additional Information License Amendments Related to Fuel Storage RS-22-092, Nine and Quad Cities - Application to Revise Primary Containment Isolation Instrumentation Technical Specifications in Accordance with TSTF-306, Revision 2, Add Action to LCO 3.3.6.1 to Give Option to Isolate the Penetration2022-10-0303 October 2022 Nine and Quad Cities - Application to Revise Primary Containment Isolation Instrumentation Technical Specifications in Accordance with TSTF-306, Revision 2, Add Action to LCO 3.3.6.1 to Give Option to Isolate the Penetration RS-22-093, Advisement of Leadership Changes for Constellation Energy Generation, LLC and Submittal of Updated Standard Practice Procedures Plans2022-08-18018 August 2022 Advisement of Leadership Changes for Constellation Energy Generation, LLC and Submittal of Updated Standard Practice Procedures Plans RS-22-083, Response to Request for Additional Information Related to the License Amendment Request to Change New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies, with Proposed Changes to Technical2022-06-17017 June 2022 Response to Request for Additional Information Related to the License Amendment Request to Change New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies, with Proposed Changes to Technical RS-22-051, Constellation Energy Generation, LLC - Update to Correspondence Addressees and Service Lists2022-04-12012 April 2022 Constellation Energy Generation, LLC - Update to Correspondence Addressees and Service Lists RS-22-049, Constellation Energy Generation, LLC, Supplemental Information to Correct Typographical Errors in Constellation'S Application to Revise Technical Specifications to Adopt TSTF-541 Revision 2, Add Exceptions to Surveillance Requirements for2022-04-0404 April 2022 Constellation Energy Generation, LLC, Supplemental Information to Correct Typographical Errors in Constellation'S Application to Revise Technical Specifications to Adopt TSTF-541 Revision 2, Add Exceptions to Surveillance Requirements for V RS-22-045, Constellation Energy Generation, LLC, Response to NRC Regulatory Issue Summary 2022-01, Preparation and Scheduling of Operator Licensing Examinations2022-03-25025 March 2022 Constellation Energy Generation, LLC, Response to NRC Regulatory Issue Summary 2022-01, Preparation and Scheduling of Operator Licensing Examinations RS-22-035, Supplemental Information Regarding Relief Request I4R-13 Relief from Code Examinations for 1B33-F060A and 1B33-F060B Repairs2022-03-0404 March 2022 Supplemental Information Regarding Relief Request I4R-13 Relief from Code Examinations for 1B33-F060A and 1B33-F060B Repairs RS-22-033, Response to Request for Additional Information Regarding Relief Request I4R-13 Relief from Code Examinations for 1B33-F060A and 1B33-F060B Repairs2022-03-0303 March 2022 Response to Request for Additional Information Regarding Relief Request I4R-13 Relief from Code Examinations for 1B33-F060A and 1B33-F060B Repairs RS-22-032, Relief Request I4R-13 Relief from Code Examinations for 1B33-F060A and 1B33-F060B Repairs2022-03-0202 March 2022 Relief Request I4R-13 Relief from Code Examinations for 1B33-F060A and 1B33-F060B Repairs RS-22-023, Constellation Energy Generation, LLC, Executed Trust Fund Agreement Amendment and Subordinate Trust Agreement2022-02-23023 February 2022 Constellation Energy Generation, LLC, Executed Trust Fund Agreement Amendment and Subordinate Trust Agreement RS-22-027, Constellation, Response to Request for Additional Information Regarding Application to Revise Technical Specifications to Adopt TSTF-541 Revision 2, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated2022-02-23023 February 2022 Constellation, Response to Request for Additional Information Regarding Application to Revise Technical Specifications to Adopt TSTF-541 Revision 2, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated P RS-22-018, Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors for LaSalle County Station2022-02-22022 February 2022 Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors for LaSalle County Station RS-22-019, Constellation Energy Generation, LLC - Update to Correspondence Addressees and Service Lists2022-02-16016 February 2022 Constellation Energy Generation, LLC - Update to Correspondence Addressees and Service Lists RS-22-015, Notification of Completion of License Transfer and Request to Continue Processing Pending NRC Actions Previously Requested by Exelon Generation Company, LLC2022-02-0101 February 2022 Notification of Completion of License Transfer and Request to Continue Processing Pending NRC Actions Previously Requested by Exelon Generation Company, LLC RS-22-004, Supplement to Application to Adopt TSTF-554, Revision 1, Revise Reactor Coolant Leakage Requirements2022-01-0404 January 2022 Supplement to Application to Adopt TSTF-554, Revision 1, Revise Reactor Coolant Leakage Requirements RS-21-121, Proposed Changes to Decommissioning Trust Agreements and Master Terms2021-12-15015 December 2021 Proposed Changes to Decommissioning Trust Agreements and Master Terms RS-21-115, Supplemental Information for License Amendment Request Regarding New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies, with Proposed Changes to Technical Specifications 4.3.1 and 5.6.52021-11-0404 November 2021 Supplemental Information for License Amendment Request Regarding New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies, with Proposed Changes to Technical Specifications 4.3.1 and 5.6.5 RS-21-109, Request to Withhold Meeting Materials for the Non-Public Meeting Held on September 2, 20212021-10-14014 October 2021 Request to Withhold Meeting Materials for the Non-Public Meeting Held on September 2, 2021 RS-21-091, Implementation of Insider Threat Program Requirements Associated with the Voluntary Security Clearance Program and Advisement of Leadership Changes2021-09-13013 September 2021 Implementation of Insider Threat Program Requirements Associated with the Voluntary Security Clearance Program and Advisement of Leadership Changes RS-21-078, Response to Request for Additional Information for Application to Revise Technical Specification to Adopt TSTF-582, Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements, and TSTF-583-T, TSTF-582 Diesel2021-08-19019 August 2021 Response to Request for Additional Information for Application to Revise Technical Specification to Adopt TSTF-582, Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements, and TSTF-583-T, TSTF-582 Diesel RS-21-085, Response to Request for Additional Information Regarding License Amendment Request to Incorporate Licensing Topical Report NEDE-33885PA, Revision 1, GNF CRDA Application Methodology (EPID-L-2021-LLA-0016)2021-08-17017 August 2021 Response to Request for Additional Information Regarding License Amendment Request to Incorporate Licensing Topical Report NEDE-33885PA, Revision 1, GNF CRDA Application Methodology (EPID-L-2021-LLA-0016) RS-21-063, Application to Adopt TSTF-554, Revision 1, Revise Reactor Coolant Leakage Requirements2021-06-30030 June 2021 Application to Adopt TSTF-554, Revision 1, Revise Reactor Coolant Leakage Requirements RS-21-064, License Amendment Request Re New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies - Cover Letter2021-06-30030 June 2021 License Amendment Request Re New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies - Cover Letter RS-21-070, Proposed Alternative to Utilize Code Case N-8932021-06-30030 June 2021 Proposed Alternative to Utilize Code Case N-893 RS-21-055, Response to Third Round Request for Additional Information (Rals) for LaSalle License Amendment Request to Adopt Risk Informed Completion Times TSTF- 505, Revision 2, Provide Risk-Informed Extended.2021-05-10010 May 2021 Response to Third Round Request for Additional Information (Rals) for LaSalle License Amendment Request to Adopt Risk Informed Completion Times TSTF- 505, Revision 2, Provide Risk-Informed Extended. RS-21-054, Response to NRC Regulatory Issue Summary 2021-01, Preparation and Scheduling of Operator Licensing Examinations2021-04-29029 April 2021 Response to NRC Regulatory Issue Summary 2021-01, Preparation and Scheduling of Operator Licensing Examinations RS-21-050, Response to Request for Additional Information (RAI) Regarding Request for License Amendment Regarding Ultimate Heat Sink (EPID-L-2020-LLA-0165)2021-04-16016 April 2021 Response to Request for Additional Information (RAI) Regarding Request for License Amendment Regarding Ultimate Heat Sink (EPID-L-2020-LLA-0165) RS-21-045, Response to Request for Additional Information (RAI) Regarding Request for License Amendment Regarding Ultimate Heat Sink (EPID-L-2020-LLA-0165)2021-04-0707 April 2021 Response to Request for Additional Information (RAI) Regarding Request for License Amendment Regarding Ultimate Heat Sink (EPID-L-2020-LLA-0165) RS-21-040, Response to Second Round Request for Additional Information (Rais) for License Amendment Request to Adopt Risk Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b2021-03-31031 March 2021 Response to Second Round Request for Additional Information (Rais) for License Amendment Request to Adopt Risk Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b RS-21-043, Supplemental Information Regarding Relief Request I4R-12 Relief from Code Examinations for 2B33-F060A and 2B33-F060B Repairs, Revision 22021-03-26026 March 2021 Supplemental Information Regarding Relief Request I4R-12 Relief from Code Examinations for 2B33-F060A and 2B33-F060B Repairs, Revision 2 RS-21-042, Relief Request I4R-12 Relief from Code Examinations for 2B33-F060A and 2B33-F060B Repairs, Revision 22021-03-26026 March 2021 Relief Request I4R-12 Relief from Code Examinations for 2B33-F060A and 2B33-F060B Repairs, Revision 2 RS-21-039, Supplemental Information Regarding Application for Order Approving Transfers and Proposed Conforming License Amendments2021-03-25025 March 2021 Supplemental Information Regarding Application for Order Approving Transfers and Proposed Conforming License Amendments RS-21-035, Relief Request I4R-12 Relief from Code Examinations for 2B33-F060A and 2B33-F060B Repairs2021-03-0909 March 2021 Relief Request I4R-12 Relief from Code Examinations for 2B33-F060A and 2B33-F060B Repairs 2023-08-04
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Text
Michael P. Gallagher Exelon Nuclear Exelon Generation Vice President License Renewal and Decommissioning 200 Exelon Way Kennett Square, PA 19348 610 765 5958 Office 610 765 5658 Fax www.exeloncorp.com m1chaelp.gallagher@exeloncorp.com 10 CFR 50 10 CFR 51 10 CFR 54 RS-16-128 June 8, 2016 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 LaSalle County Station, Units 1 and 2 Facility Operating License Nos. NPF-11 and NPF-18 NRC Docket Nos. 50-373 and 50-374
Subject:
Second 10 CFR 54.21 (b) Annual Amendment to the LaSalle County Station, Units 1 and 2, License Renewal Application (TAC Nos. MF5347 and MF5346)
References:
- 1. Letter from Michael P. Gallagher, Exelon Generation Company LLC (Exelon),
to NRC Document Control Desk, dated December 9, 2014, "Application for Renewed Operating Licenses"
- 2. Letter from Michael P. Gallagher, Exelon, to NRC Document Control Desk, dated December 2, 2015, "10 CFR 54.21(b) Annual Amendment to the LaSalle County Station, Units 1 and 2, License Renewal Application (TAC Nos. MF5347 and MF5346)"
In Reference 1, Exelon Generation Company, LLC (Exelon) submitted the License Renewal Application (LRA) for the LaSalle County Station (LSCS), Units 1 and 2. Reference 2 provided the first annual amendment to the LRA, as required by 10 CFR 54.21 (b).
Exelon has completed a review to identify any current licensing basis (CLB) changes made since submittal of the Reference 2 letter, which have a material effect on the content of the LRA, including the FSAR Supplement. This amendment identifies two (2) changes to the CLB that are considered to materially affect the contents of the LSCS LRA. Enclosure A contains a description of these CLB changes. Enclosure B contains updates to sections of the LRA affected by the changes.
June 8, 2016 U.S. Nuclear Regulatory Commission Page 2 This submittal satisfies the requirement within 10 CFR 54.21 (b) to submit an amendment addressing any such changes at least three months before scheduled completion of NRC review of the LRA.
There are no new or revised regulatory commitments contained in this letter.
If you have any questions, please contact Mr. John Hufnagel, Licensing Lead, LaSalle License Renewal Project, at 610-765-5829.
I declare under penalty of perjury that the foregoing is true and correct.
Executed on ~6 -OS - 2':>/(
Respectfully,
~~
Vice President - License Renewal Projects Exelon Generation Company, LLC
Enclosures:
A. Description of CLB Changes that Impact the LRA Associated with the Second 10 CFR 54.21 (b) Annual Amendment B. LSCS LRA Updates Resulting from CLB Changes Identified in the Second 10 CFR 54.21(b) Annual Amendment cc: Regional Administrator - NRC Region Ill NRC Project Manager (Safety Review), NRR-DLR NRC Project Manager (Environmental Review), NRR-DLR NRC Project Manager, NRR-DORL- LaSalle County Station NRC Senior Resident Inspector, LaSalle County Station Illinois Emergency Management Agency - Division of Nuclear Safety
RS-16-128 Enclosure A Page 1 of 1 Enclosure A Description of CLB Changes that Impact the LRA Associated with the Second 10 CFR 54.21(b) Annual Amendment
- 1) Addition of Robust FLEX Storage Building (Building #22)
In response to NRC Order EA 12-049 for implementation of Flexible Coping Strategies (FLEX) for external events beyond the original plant design basis (BDBEE), an additional storage building was installed to house FLEX equipment at LSCS. The Robust FLEX Storage Building (Building #22) is a stand-alone, cast-in-place, reinforced concrete structure with a floating slab supported on concrete strip footings resting on soil. The building is located on the north portion of the LSCS site, outside of the plants main power block, north of the Independent Spent Fuel Storage Installation (ISFSI) pad.
Robust FLEX Storage Building (Building #22) is not in scope as it is nonsafety-related and is separated from safety-related systems, structures, and components such that the structures failure would not impact a safety-related function. This building has been included in the Miscellaneous Not In Scope Structures. LRA Table 2.2-1, Plant Level Scoping Results, Comment #1 is revised as shown in Enclosure B to add this building to the list of not in scope structures.
- 2) Replacement of Carbon Steel Vacuum Breakers with Stainless Steel Vacuum Breakers in the Unit 1 Reactor Core Isolation Cooling (RCIC) System A design change to the RCIC System was performed to replace carbon steel vacuum breakers with stainless steel vacuum breakers in the RCIC turbine exhaust piping. The carbon steel vacuum breakers were swing type check valves which required a significant amount of rework associated with failed local leak rate tests. The replacement stainless steel valves are piston in-line check valves which offer improved reliability over the original carbon steel swing check valves. LRA Table 3.2.2-3, Reactor Core Isolation Cooling System Summary of Aging Management Evaluation, is revised as shown in Enclosure B to include the environments of Air - Indoor Uncontrolled (External) and Condensation (Internal) for stainless steel valve bodies with a pressure boundary intended function. The associated aging effects and aging management line items are also identified.
RS-16-128 Enclosure B Page 1 of 3 Enclosure B LSCS LRA Updates Resulting from CLB Changes Identified in the Second 10 CFR 54.21(b) Annual Amendment
RS-16-128 Enclosure B Page 2 of 3 As a result of the response to NRC Order EA 12-049 (Item 1 of Enclosure A), LRA Table 2.2-1, Plant Level Scoping Results, Comment #1 starting on page 2.2-5, is revised as shown below.
Additions are shown in bolded italics.
- 1. The Miscellaneous Not In Scope Structures are nonsafety-related and provide support, shelter, and protection for personnel, stored materials, or nonsafety-related systems, structures, and components (SSCs) that do not perform an intended function for license renewal. These nonsafety-related structures are also separated from safety-related systems, structures, and components such that the structures failure would not impact a safety-related function. Therefore, the following structures are not within the scope of license renewal: Administration Building (also known as the South Service Building or New Service Building), Building #30 (Records Storage Vault or Records Storage Building), IDNS (Illinois Department of Nuclear Safety) Building, Project Management Field Office, Training Building, Maintenance Shop, Building #1 (contractor fab shop, radiological outage, equip storage), Road Maintenance Building, Weld Shop, Warehouse (Stores Warehouse), Warehouses 3 - 6, Contractor PreFab Shop, Shad Net Maintenance Building, In-Processing Facility, MAF (Main Access Facility), Security Checkpoint, Building #11 (TSC and Security Diesels), NAF (Old Permanent Gatehouse or Gatehouse), Sewage Treatment Plant, Water Softener Building (Building #41), MUDS (Makeup Demineralizer System) Trailers, Pump Houses: (Building #40), River Screen House, Lake Blowdown Outfall Structure, Transporter Building, Hazardous/Mixed Waste Storage Facility (Building #20), Radwaste Storage, Building #33, Filling Station, Station Heat Chiller Pad, Fish Hatchery, Robust FLEX Storage Building (Building #22),
Robust FLEX Storage Building (Building #23), and Commercial FLEX Storage Building (Building #24).
RS-16-128 Enclosure B Page 3 of 3 As a result of the replacement of the Unit 1 carbon steel RCIC turbine exhaust vacuum breakers with stainless steel vacuum breakers (Item 2 of Enclosure A), LRA Table 3.2.2-3, Reactor Core Isolation Cooling System Summary of Aging Management Evaluation starting on page 3.2-55, is revised as shown below. Additions are indicated with bolded italics.
Table 3.2.2-3 Reactor Core Isolation Cooling System (Continued)
Component Type Intended Function Material Environment Aging Effect Requiring Aging Management NUREG-1801 Table 1 Item Notes Management Programs Item Valve Body Pressure Boundary Stainless Steel Air - Indoor None None V.F.EP-18 3.2.1-63 A Uncontrolled (External)
Air - Outdoor (External) Cracking External Surfaces V.D2.EP-103 3.2.1-7 A Monitoring of Mechanical Components (B.2.1.24)
Loss of Material External Surfaces V.D2.EP-107 3.2.1-4 A Monitoring of Mechanical Components (B.2.1.24)
Condensation Loss of Material Inspection of Internal V.D2.EP-61 3.2.1-48 A (Internal) Surfaces in Miscellaneous Piping and Ducting Components (B.2.1.25)
Treated Water (Internal) Loss of Material One-Time Inspection V.D2.EP-73 3.2.1-17 A (B.2.1.21)
Water Chemistry (B.2.1.2) V.D2.EP-73 3.2.1-17 B