ML15054A456

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Updated Final Safety Analysis Report (Ufsar), Revision 15, Updated Fire Protection Report (Fpr), Amendment 26. (Redacted Version)
ML15054A456
Person / Time
Site: Byron, Braidwood  Constellation icon.png
Issue date: 12/15/2014
From: Imburgia D
Exelon Generation Co
To:
Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
References
RS-14-338
Download: ML15054A456 (17)
v • d • e


Text

d4300 Winfield Road ne

December 15, 2014 10 CFR 50.71(e)

U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20055 Braidwood Station, Units 1 and 2 Facility Operating License Nos. NPF-72 and NPF-77 NRC Docket Nos. STN 50-456, STN 50-457 and 72-73 Byron Station, Units 1 and 2 Facility Operating License Nos. NPF-37 and NPF-66 NRC Docket Nos. STN 50-454, STN 50-455 and 72-68

Subject:

Updated Final Safety Analysis Report (UFSAR), Revision 15 Updated Fire Protection Report (FPR), Amendment 26 In accordance with the requirements of 10 CFR 50.71, "Maintenance of records, making of reports,"

paragraph (e)(4), Exelon Generation Company (EGC), LLC submits Revision 15 to the Updated Final Safety Analysis Report (UFSAR) and Amendment 26 to the Fire Protection Report (FPR) for Braidwood and Byron Stations.

The UFSAR is being submitted on Compact Disk - Read Only Memory (CD-ROM) in its entirety, including documents incorporated by reference (Braidwood Technical Requirements Manual (TRM) updated through Revision 087, Byron TRM updated through Revision 096, Braidwood Technical Specifications Bases (TSB) updated through Revision 097 and Byron TSB updated through Revision 090). All UFSAR pages changed as a result of this update are clearly delineated with "Revision 15 - December 2014" in the page footer. All FPR pages changed as a result of this update are clearly delineated with "Amendment 26 - December 2014" in the page header.

One CD-ROM is included in this submission. The CD-ROM labeled, "Exelon Nuclear - Braidwood -

Byron Stations UFSAR Rev. 15 December 2014, TRM, Tech Spec Bases, Fire Protection Rpt" contains the following four components:

001 BRW-BYR UFSAR REV 15.pdf, 160 megabytes (MB), publicly available

.002 BRW-BYR TRM.pdf, Braidwood 8.58 MB, Byron 3.77 MB, publicly available 003 BRW-BYR Tech Spec Bases.pdf, Braidwood 3.83 MB, Byron 1.77 MB, publicly available 004 BRW-BYR FPR, Amend 26.pdf, 156 MB, publicly available 3

December 15, 2014 U. S. Regulatory Commission Page 2 Attachment A provides a brief summary of the changes incorporated into UFSAR Revision 15.

Attachment B provides a brief summary of the changes incorporated into FPR Amendment 26.

Attachment C contains the directory path, filename, and size of each individual file.

As Manager - Licensing, I certify that the information in this submittal accurately presents changes made since the previous submittal necessary to reflect information and analyses submitted to the NRC or prepared pursuant to NRC requirements, and changes made under the provisions of 10 CFR 50.59.

There are no commitments in this letter. Should you have any questions concerning this submittal, please contact:

Amy Hambly Exelon Nuclear - Licensing 4300 Winfield Road Warrenville, IL 60555 Phone: (630) 657-2808 E-Mail: amy.hambly@exeloncorp.com Respectfully, Dominic M. Imburgia Manager - Licensing Programs Attachments:

Attachment A - Braidwood / Byron UFSAR Revision 15 Change Summary Report Attachment B - Summary of Fire Documentation Revision Packages (FDRPs) Incorporated into Braidwood/Byron Stations Fire Protection Report - Amendment 26 Attachment C - CD-ROM Directory Structure cc:

Regional Administrator - NRC Region III NRC Senior Resident Inspector - Braidwood Station NRC Senior Resident Inspector - Byron Station

Attachment A Braidwood I Byron UFSAR Revision 15 Change Summary DRP 12-016 revised UFSAR Table 11.2-5 to reflect the installation of a new pump for the Liquid Radwaste System as a result of a design change at Braidwood Station.

DRP 12-041 revised UFSAR Sections 3.9.2.7, 4.4.6.4.2, and 4.4.6.4.5 to reflect the replacement of the Loose Parts Monitoring System on Braidwood Station, Unit 2 with a new design.

DRP 12-073 revised UFSAR Section 5.4.2.1.4 to address injection of a chemical dispersant into the Feedwater (FW) System on Braidwood Station, Unit 1 to facilitate removal of iron deposits in the steam generators (SGs).

ORP 13-048 revised UFSAR Sections 2.4.13, 2.4.15 and associated Tables and Figures and Sections 9.2.3 and 9.2.4 to reflect a design change to replace the Makeup Demineralizer System at Braidwood Station and utilize groundwater to meet the Station's potable and make-up system requirements.

DRP 13-055 revised UFSAR Section 5.4.2.1.4 to address injection of a chemical dispersant into the FW System on Braidwood Station, Unit 2 to facilitate removal of iron deposits in the SGs.

DRP 13-064 revised UFSAR Section 11.2.2.2 to include a discussion of the Radwaste Storage Tank (RST), OWX27T, at Braidwood Station for consistency with a previously incorporated change. The UFSAR was previously revised to address installation of the RST as a result of a design change.

DRP 14-001 revised UFSAR Sections 9.3.1.3, 10.4.9.2.1.4, and 15.2.8.2 and Table 3.5-10 to reflect installation of redundant safety-related instrument air accumulators to provide 30 minutes of air supply to the Auxiliary Feedwater (AF) flow control valves to the SGs (1AF005A-H) on Byron Station, Unit 1.

DRP 14-002 revised UFSAR Sections 9.3.1.3,10.4.9.2.1.4, and 15.2.8.2 and Table 3.5-10 to reflect installation of redundant safety-related instrument air accumulators to provide 30 minutes of air supply to the AF flow control valves to the SGs (2AF005A-H) on Byron Station, Unit 2.

DRP 14-004 revised UFSAR Sections 7.1.2.1.6, 7.1.2.6, 7.2.2.2.3, and 7.3.2.2.5 to reflect implementation of the Bypass Testing Instrumentation for the Westinghouse 7300 System and the Nuclear Instrumentation System on Byron Station, Unit 2 as a result of a design change.

DRP 14-006 revised UFSAR Sections 9.3.1.3, 10.4.9.2.1.4, and 15.2.8.2 and Table 3.5-10 to reflect installation of redundant safety-related instrument air accumulators to provide 30 minutes of air supply to the AF flow control valves to the SGs (2AF005A-H) on Braidwood Station, Unit 2.

DRP 14-008 revised UFSAR Sections 7.1.2.1.6, 7.1.2.6, 7.2.2.2.3, and 7.3.2.2.5 to reflect implementation of the Bypass Testing Instrumentation for the Westinghouse 7300 System and the Nuclear Instrumentation System on Braidwood Staiion, Unit 2 as a result of a design change.

Page 1 of 11

Attachment A Braidwood / Byron UFSAR Revision 15 Change Summary DRP 14-011 revised UFSAR Tables 3.2-1, 3.9-16, and 8.3-5 to reflect a design change on Braidwood Station, Unit 2 to provide a reliable source of power to the Essential Service Water (SX) strainers to assure that backwash will be available during a loss of offsite power (LOOP) as well as during a postulated station fire (i.e., to satisfy 10 CFR 50 Appendix R criteria).

DRP 14-018 revised UFSAR Sections 7.2.2.4.2 and 10.3.1 to reflect installation of a stand-alone uninterruptible power supply (UPS) into the power feed to one of two SG Power Operated Relief Valve (PORV) circuits per electrical division on Byron Station, Unit 1 (i.e., SG PORV's 1D and 1C). The UPS provides back-up power to the valve in the event of a failure of that valve's Class 1 E power.

DRP 14-019 revised UFSAR Sections 7.2.2.4.2 and 10.3.1 to reflect installation of a stand-alone UPS into the power feed to one of two SG PORV circuits per electrical division on Byron Station, Unit 2 (i.e., SG PORV's 2D and 2C). The UPS provides back-up power to the valve in the event of a failure of that valve's Class 1 E power.

DRP 14-021 revised UFSAR Sections 7.2.2.4.2 and 10.3.1 to reflect installation of a stand-alone UPS into the power feed to one of two SG PORV circuits per electrical division on Braidwood Station, Unit 2 (i.e., SG PORV's 2D and 2C). The UPS provides back-up power to the valve in the event of a failure of that valve's Class 1 E power.

DRP 14-024 revised UFSAR Sections 3.6.2, 9.2.2.2, 9.2.2.2.2.6, and 9.2.2.4.4 and Tables 3.9-16 and 9.2-5 to reflect installation of a design change to add a safety-related SX makeup water supply to the Component Cooling Water (CC) System surge tank at Byron Station, Units 1 and 2.

DRP 14-028 revised UFSAR Table 3.9-16 to reflect a design change on Byron Station, Unit 2 that added two new valves (2CC091 B and 2CC092B) to satisfy the Class boundary change criteria per ANS-18.2/51.1-1983 due to their use as flow limiting devices.

DRP 14-031 revised UFSAR Section 3.6.2.1.1 to provide the results of an assessment of the impact of the Mechanical Stress Improvement Process (MSIP) on the Leak-Before-Break analysis for Braidwood Station, Unit 2.

DRP 14-033 revised UFSAR Appendix E. 17 to reflect replacement of the Plant Process Computer on Byron Station, Unit 1.

DRP 14-038 revised UFSAR Sections 3.6.2, 9.2.2.2, 9.2.2.2.2.6, and 9.2.2.4.4 and Tables 3.9-16 and 9.2-5 to reflect installation of a design change to add a safety-related SX makeup water supply to the CC surge tank at Braidwood Station, Units 1 and 2.

DRP 14-046 revised UFSAR Table 3.5-10 to increase the amount of stored helium as a result of a design change that installs new gas monitors on the Unit Auxiliary and System Auxiliary Transformers on Byron Station, Unit 2.

Page 2 of 11

Attachment A Braidwood / Byron UFSAR Revision 15 Change Summary DRP 14-052 revised UFSAR Table 3.2-1 to indicate that the Makeup Demineralizer (WM) System containment isolation function is Safety Category I consistent with UFSAR Section 9.2.3 and the remainder of the WM System is Safety Category I1.

DRP 14-053 revised UFSAR Section 5.2.2.5.3 to update the maximum stresses for the SG PORV piping associated with a design change to replace the valve trim in the SG PORVs on Byron Station, Unit 1 and Braidwood Station, Unit 1. The valve trim replacement supported design basis flows consistent with the Steam Generator Tube Rupture Margin to Overfill and Dose Case analyses.

DRP 14-055 revised UFSAR Section 7.7.1.21.1 and UFSAR Figure 7.7-12 to decrease the time delay setpoint for the Anticipated Transient without Scram Mitigating System (AMS) from 25 seconds to 9 seconds as a result of a design change at Byron Station, Unit 2 in support of the Measurement Uncertainty Recapture (MUR) Power Uprate.

DRP 14-058 revised UFSAR Appendix 6.3A for proper positioning of valves as a result of a design change on Braidwood Station, Unit 2 to install a redundant isolation valve in series with 2SI8801A/B. In addition, the valves were added to Table 3.9-16 as "Active Valves."

DRP 14-059 revised UFSAR Section 7.7.1.21.1 and UFSAR Figure 7.7-12 to decrease the time delay setpoint for the AMS from 25 seconds to 9 seconds as a result of a design change at Braidwood Station, Unit 2 in support of the MUR Power Uprate.

DRP 14-062 revised UFSAR Section 15.7.2.1 to correct conflicting information regarding the seismic classification of the spent resin storage tank.

DRP 14-064 revised UFSAR Chapter 6 due to the implementation of the MUR Power Uprate and the revisions to the Containment Mass and Energy Release and Main Steam Line Break Analyses.

DRP 14-065 revised UFSAR Chapter 15 due to the implementation of the MUR Power Uprate and revision to the Steam Generator Margin to Overfill design basis analysis.

DRP 14-066 revised UFSAR Chapters, as necessary, with the exception of Chapters 6 and 15 for the implementation of the MUR Power Uprate.

DRP 14-068 revised UFSAR Sections 3.6.2.1.1 and 3.6.3 to provide the results of an assessment of the impact of the MSIP on the Leak-Before-Break analysis for Byron Station, Unit 2.

DRP 14-069 revised UFSAR Sections 9.2.4.1 and 9.2.4.2 to reflect decommissioning of the onsite sewage treatment plant and connection of the site sewage system into the Braidwood municipal sewage system.

DRP 14-070 revised UFSAR Section 9.3.4.1.2.4 to reflect isolating the Boron Thermal Regeneration System (BTRS) on Byron Station, Unit 2.

Page 3 of 11

Attachment A Braidwood / Byron UFSAR Revision 15 Change Summary DRP 14-072 revised UFSAR Section 12.3.1.13 by removing excessive detail regarding the specific number of washers and dryers used at each site. This change simplified information in the UFSAR by removing excessive detail in accordance with NEI 98-03, "Guidelines for Updating Final Safety Analysis Reports," Revision 1.

DRP 14-075 revised UFSAR Appendix A, Regulatory Guide (RG) 1.23, "Onsite Meteorological Programs," regulatory compliance description to indicate compliance with Revision 1 of the RG with clarification of exceptions.

DRP 14-084 revised UFSAR Chapters 3, 7, and 9 to reflect the change in design basis for the Turbine Building High Energy Line Break (HELB) mitigation strategy as a result of revised thermal-hydraulic analysis and modifications to affected systems, including: the Emergency Diesel Generator (EDG) Room Ventilation (VD) System, the Engineered Safety Features (ESF) Switchgear Room Ventilation (VX) System, and the Miscellaneous Electric Equipment Room (MEER) Ventilation (VE) System. The UFSAR was also revised to reflect design changes to the Control Room Ventilation (VC) System and the Diesel Oil Storage Tank (DOST) Rooms.

DRP 14-086 revised Braidwood UFSAR Sections 2.2.1, 2.2.2, 2.2.3 and Tables 2.2-4 and 2.2-5 to reflect the results of Control Room Envelope Habitability Chemical Surveys.

DRP 14-092 revised UFSAR Section 5.2.2.5.3 as a result of a design change on Braidwood Station, Unit 2 associated with replacing the valve trim on the SG PORVs and installing a valve stem block to restore design flow rates based on discovery that the current SG PORV capacity is less than design values. The UFSAR is revised to address revised stresses in the relief valve piping.

DRP 14-095 revised Chapters 6, 7, 9, and 15 to reflect the installation of HELB sensors at the Main Control Room emergency makeup air filter unit supply from the Turbine Building to mitigate the adverse impact on the VC Filtration System and Main Control Room environment due to a HELB in the Turbine Building.

DRP 14-096 revised UFSAR Section 10.2.2.2.1 to modify the description of the generator hydrogen cooler on Braidwood Station, Unit 2 as a result of design change.

DRP 14-097 revised UFSAR Section 5.4.2.5.4 and Appendix A RG 1.121, "Bases for Plugging Degraded PWR Steam Generator Tubes," regulatory compliance description to eliminate reference to sleeving as a SG tube repair method. This change is consistent with Braidwood Technical Specification (TS) Amendment No. 170 and Byron TS Amendment No. 177.

DRP 14-100 revised UFSAR Section 9.2.2.4.4 to provide clarification regarding use of the Unit Common CC Pump.

DRP 14-101 revised UFSAR Sections 7.3.1.1.10.3.2, 7.3.1.1.10.3.9, and 9.4.5.2.2.1, and Table 9.4-12 for Braidwood Station, Units 1 and 2 to reflect installation of new temperature switches to sense a HELB in the Turbine Building and shut off ventilation to the DOST Rooms.

Page 4 of 11

Attachment A Braidwood / Byron UFSAR Revision 15 Change Summary DRP 14-103 revised UFSAR Sections 8.1, 8.2.2, and 8.2.3 to replace reference to Mid-American Interpool Network (MAIN) with the current organizational title of North American Electric Reliability Council (NERC).

DRP 14-104 revised UFSAR Sections 6.3.2.5 and 6.3.6 to summarize various actions taken in response to NRC Generic Letter 2008-01, "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems."

DRP 14-105 revised UFSAR Section 10.2.2.2.1 to modify the description of the generator hydrogen cooler on Byron Station, Units 1 and 2 as a result of design change.

DRP 15-002 revised UFSAR Sections 7.3.1.1.10.3.2, 7.3.1.1.10.3.9, 9.4.5.2.2.1, and Table 9.4-12 for Byron Station, Units 1 and 2 to reflect installation of new temperature switches to sense a HELB in the Turbine Building and shut off ventilation to the DOST Rooms.

DRP 15-005 revised UFSAR Section 9.1.4.2.2 to reference that portions of Byron Station, Units 1 and 2 Refueling Machine In-Mast Sipping Rings are removed unless needed to support failed fuel detection.

DRP 15-006 revised UFSAR Sections 3.5.2, 3.5.4.1 and 9.4.5.4.1.1 to clarify that the Byron Essential Service Water Cooling Tower (SXCT) ventilation air intake openings are not protected from tornado missiles and provide a summary of the analysis of the loss of the SXCT Switchgear room ventilation due to postulated tornado missiles.

DRP 15-007 revised UFSAR Section 9.3.4.1.2.5 to incorporate changes as a result of a design change on Byron Station, Unit 2 to add a differential pressure switch on the reactor coolant filter that will alarm the Radwaste Control Room on high differential pressure.

DRP 15-009 revised UFSAR Appendix 6.3A for proper positioning of valves as a result of a design change on Byron Station, Unit 2 to install a redundant isolation valve in series with 2SI8801A/B. In addition, the valves were added to Table 3.9-16 as "Active Valves."

DRP 15-010 revised UFSAR Section 3.9.1.1 and UFSAR Appendix A RGs 1.83, "Inservice Inspection of Pressurized Water Reactor Steam Generator Tubes," and 1.121, "Bases for Plugging Degraded PWR Steam Generator Tubes," regulatory compliance descriptions for consistency with Braidwood Station TS Amendment Nos. 144 and 172 and Byron Station TS Amendment Nos. 150 and 179 regarding SG tube inspections and reporting.

DRP 15-011 revised UFSAR Sections 2.4.2.3, 2.4.10, 3.4.1.2, and 9.1 to clarify and more accurately describe the sites' characteristics as they pertain to external flooding and local intense precipitation.

DRP 15-012 revised UFSAR Section 9.2.8 to clarify that hot water is supplied to the Units 1 and 2 Diesel Generator Rooms and the Units 1 and 2 Diesel Oil Rooms at Byron only.

Page 5 of 11

Attachment A Braidwood / Byron UFSAR Revision 15 Change Summary DRP 15-013 revised UFSAR Sections 8.2 and 9.5.2.1 to reflect changes in the switchyard Communication System as a result of a design change that replaces the Microwave Communication System used for relay tripping of breakers for line protection with a direct fiber connection to the switchyard fiber ring for Byron Station transmission line L0624.

DRP 15-014 revised UFSAR Section 10.2.2.2.1 to modify the description of the generator hydrogen cooler on Braidwood Station, Unit 1 as a result of design change.

DRP 15-015 revised UFSAR Section 9.1.4.2.2 and Table 9.1-8 to reflect the addition of a display item on the Spent Fuel Pool Bridge Crane pendants for Braidwood Station as a result of a design change to illustrate when the crane is operating in the new "Maintenance Slow Mode."

DRP 15-017 revised UFSAR Sections 3.5.4, 3.5.4.3, 3.5.5, and 8.3.1.1.2.3 to document the bases for not providing missile protection of the Diesel Generator crankcase vent lines.

DRP 15-020 revised UFSAR Table 9.2-9 to reflect the abandonment/removal of certain Station Heating (SH) System heaters to reduce the potential for a failure in the SH System to adversely affect safety-related ventilation system equipment.

DRP 15-022 revised UFSAR Sections 7.3.1.1.10.3.2 and 9.4.5.2.1.2 as a result of a design change to automatically start the Diesel Generator Room Ventilation System supply fans on high Diesel Generator temperature.

DRP 15-023 revised UFSAR Table 9.1-8 to reflect the addition of a display item on the Spent Fuel Pool Bridge Crane pendants for Byron Station as a result of a design change to illustrate when the crane is operating in the new "Maintenance Slow Mode."

DRP 15-024 revised UFSAR Chapters 7, 10, and 15 to reflect the installation of additional pressure transmitters in each AF pump suction line as a result of a design change on Byron Station, Unit 1. This design change revised the AF pump control circuit and results in a delay to AF initiation. Therefore, the Chapter 15 analyses were updated accordingly.

DRP 15-025 revised UFSAR Chapters 7, 10, and 15 to reflect the installation of additional pressure transmitters in each AF pump suction line as a result of a design change on Byron Station, Unit 2. This design change revised the AF pump control circuit and results in a delay to AF initiation. Therefore, the Chapter 15 analyses were updated accordingly.

DRP 15-028 revised UFSAR Table 3.2-1 to correct the Quality Group designation of the Control Rod Drive Mechanism (CRDM) thermal sleeves. The Quality Group classification is being revised from Quality Group "B" to "N/A", implying that ASME B&PV classification does not apply to the thermal sleeves. This is consistent with Westinghouse's classification of the CRDM thermal sleeves.

Page 6 of 11

Attachment A Braidwood I Byron UFSAR Revision 15 Change Summary DRP 15-029 revised UFSAR Sections 15.4.7 and 15.4.9, added new Table 15.4-6 and deleted applicable Figures to reflect the adoption of the updated generic inadvertent loading analysis described in Westinghouse WCAP-16676-NP.

DRP 15-030 revised UFSAR Section 7.3.1.1.11.2.3.1 to reflect the addition of new differential pressure gauges in the MEERs at Braidwood Station in parallel with existing differential pressure switches.

DRP 15-031 revised UFSAR Section 10.4.5 to reflect the results of design basis analysis for Turbine Building Flooding as a result of Circulating Water (CW) System piping expansion joint failure.

DRP 15-033 revised UFSAR Table 3.9-16 to add certain AF System valves to the Active Valve List as a result of the revised Steam Generator Tube Rupture Analysis.

DRP 15-034 revised UFSAR section 6.2.4.2 to clarify in the UFSAR the applicability of Test, Vent, and Drain valves to Surveillance Requirements for Byron Station.

DRP 15-036 revised UFSAR Section 5.4.2.1.3 to make an editorial change related to references to the "Thot Reduction Program".

DRP 15-040 revised UFSAR Chapters 5, 9 and 15 to reflect a change in the design basis analyses for the Boron Recycle Holdup Tanks (RHUTs). The safety analysis description in the UFSAR was revised to indicate that the RHUT failure utilizes the Alternate Source Term methodology.

DRP 15-043 revised UFSAR Appendix A regulatory compliance descriptions for RG 1.30, 1.37, 1.38, 1.39 1.94 and 1.116 to supersede commitment to the RGs with commitment to NQA-1-1994 for consistency with the EGC QA Topical Report.

DRP 15-050 revised UFSAR Section 5.4.1.3.9 to correct the number of shock absorbers on the Reactor Coolant Pump anti-reverse rotation device from two to three.

DRP 15-051 revised UFSAR Sections 5.4.7.4 and 5.4.15 and Appendix A RG 1.68, "Initial Test Programs for Water-Cooled Reactor Power Plants," regulatory compliance description to reflect NRC approval of the applicability of the Diablo Canyon Natural Circulation Cooldown test results to Braidwood and Byron Stations.

DRP 15-052 revised UFSAR Section 9.3.4.1.2.5 to incorporate changes as a result of a design change on Byron Station, Unit 1 to add a differential pressure switch on the reactor coolant filter that will alarm the Radwaste Control Room on high differential pressure.

DRP 15-053 revised UFSAR Sections 8.2 and 9.5.2.1 to reflect changes in the switchyard Communication System as a result of a design change that replaces the Microwave Communication System used for relay tripping of breakers for line protection with a direct fiber connection to the switchyard fiber ring for Byron Station transmission line L0621.

Page 7 of 11

Attachment A Braidwood / Byron UFSAR Revision 15 Change Summary DRP 15-054 added UFSAR Section 3.5.4.6 and revised UFSAR Section 9.2.1.2.3 to address the analysis of missiles generated by a tornado for the SX discharge extension lines at Braidwood Station.

DRP 15-057 revised UFSAR Section 3.11.1 to add clarification that the term "abnormal" refers to a subset of normal environmental conditions and updated Table 3.11-2 accordingly.

DRP 15-058 revised UFSAR Sections 8.3.2.1 and 8.3.2.1.3.4 to add a discussion of the SX Makeup Pump battery and charger for Byron Station similar to the existing AF Pump battery and charger discussion.

DRP 15-059 revised UFSAR Sections 9.1.5.2, 9.1.5.4.2, 9.1.5.5, and 9.1.6 to reflect a change in the method used to address lifting of the reactor head to preclude loss of cooling to the reactor vessel. The method is changed from a head drop analysis to use of a single failure proof equivalent polar crane in accordance with NEI 08-05, "Industry Initiative on Control of Heavy Loads," for Byron Station, Units 1 and 2 and Braidwood Station, Unit 2.

DRP 15-060 revised UFSAR Sections 15.5.1.1, 15.5.1.2, 15.5.1.4, and 15.5.4 to clarify operation of Pressurizer Safety Valves during Inadvertent ECCS Actuation.

DRP 15-061 revised UFSAR Table 7.2-3 to reflect a change in the time delay from 0.7 seconds to 0.8 seconds for the reactor coolant pump bus undervoltage for Byron Station, Unit 1 as a result of a design change.

DRP 15-062 revised UFSAR Sections 6.2.4.1.3.4, 10.4.9.1, and 10.4.9.2, Table 6.2-58, and Figure 6.2-29 as a result of a design change that adds containment isolation valves to the Byron Station, Unit 2 AF System as a result of the required FLEX modifications.

DRP 15-064 revised UFSAR Table 7.2-3 to reflect a change in the time delay from 0.7 seconds to 0.8 seconds for the reactor coolant pump bus undervoltage for Byron Station, Unit 2 as a result of a design change.

DRP 15-065 revised UFSAR Section 3.5.4.5 to reflect removal of a majority of the Main Steam Safety Valve (MSSV) and Main Steam (MS) PORV vent stack pipes from the roof of the MSSV Room for Byron Station, Unit 1 to mitigate the effects of a tornado driven missile to impact.

DRP 15-066 revised UFSAR Section 10.4.7.2 to provide clarifying information that the feedwater isolation valves (FWIVs) are pneumatic - hydraulic valves.

DRP 15-071 revised UFSAR Table 7.2-3 to reflect a change in the time delay from 0.7 seconds to 0.8 seconds for the reactor coolant pump bus undervoltage for Braidwood Station, Unit 2 as a result of a design change.

DRP 15-072 revised UFSAR Table 3.2-1, Note 7 to clarify that new equipment supporting the Byron Station Well Water (WW) System function are procured safety related, non-ASME, Category IG.

Page 8 of 11

Attachment A Braidwood / Byron UFSAR Revision 15 Change Summary DRP 15-073 revised UFSAR Section 8.3.1.2 and Appendix A, Regulatory Guide 1.9, "Selection, Design, Qualification and Testing of Diesel-Generator Units Used As Class 1 E Onsite Electric Power Systems At Nuclear Power Plants," regulatory compliance description to reflect changes in emergency diesel generator surveillance testing frequencies.

DRP 15-077 revised UFSAR Section 3.1.2.4.1 to delete reference to humidity as a means of detecting leakage in the reactor containment. This change is required for consistency with a previously incorporated change that deleted reference to reactor containment fan cooler inlet and outlet dew cells as a result of a design change.

DRP 15-078 revised UFSAR Appendix A RG 1.52, "Design, Testing and Maintenance Criteria for Engineered-Safety-Feature Atmosphere Cleanup System Air Filtration and Adsorption Units of Light-Water-Cooled Nuclear Power Plants," regulatory compliance description for Braidwood Station to reflect a change in the VC Emergency Makeup Unit surveillance testing frequency.

DRP 15-079 revised UFSAR Sections 5.4.7.2.7 and 5.4.15 and Tables 5.4-18 and 5.4-19 to reflect the revised Natural Circulation Cooldown Analysis.

DRP 15-080 revised UFSAR Sections 9.1.3.1 and 9.1.3.3 to clarify minimum spent fuel pool boron concentrations.

DRP 15-081 revised UFSAR Sections 5.3.1.5.1, 5.3.1.6.1.3, 5.3.1.6.2.2, and 5.3.4 and Tables 5.3-7, 5.3-8, 5.3-9, and 5.3-10 discussion of Pressurized Thermal Shock for consistency with the Pressure Temperature Limits Report (PTLR).

DRP 15-082 revised UFSAR Table 8.3-7 to correct the description of the "generator ground fault" and "generator trip" events and add a description of the "incomplete sequence" event for completeness.

DRP 15-083 revised UFSAR Section 9.1.3.3 by removing excessive details regarding the spent fuel pool piping arrangement. This change was implemented in accordance with NEI 98-03, "Guidelines for Updating Final Safety Analysis Reports," Revision 1.

DRP 15-085 revised UFSAR Section 7.3.1.1.9.3 to correct a typographical error regarding reference to Section 7.3.1.9.2 which should have been 7.3.1.1.9.2.

DRP 15-086 revised UFSAR Appendix A RG 1.52, "Design, Testing and Maintenance Criteria for Engineered-Safety-Feature Atmosphere Cleanup System Air Filtration and Adsorption Units of Light-Water-Cooled Nuclear Power Plants," regulatory compliance description for Byron Station to reflect a change in the VC Emergency Makeup Unit surveillance testing frequency.

DRP 15-087 revised UFSAR Section 8.2.1 and 9.5.2.1 to reflect that the Switchyard Microwave Communication System is no longer used at Braidwood Station as a result of a design change that utilizes a Fiber Optic Communication System for protection of all 345kV transmission lines.

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Attachment A Braidwood / Byron UFSAR Revision 15 Change Summary DRP 15-088 revised UFSAR Sections 15.6.5.2.3.3.1, 15.6.5.2.3.3.2, and 15.6.5.2.3.3.3, and Table 15.6-15 to reflect Peak Cladding Temperature impact from the 2014 Annual 10 CFR 50.46 Report.

DRP 15-089 revised UFSAR Section 3.5.4.5 to reflect removal of a majority of the MSSV and MS PORV vent stack pipes from the roof of the MSSV Room for Byron Station, Unit 2 to mitigate the effects of a tornado driven missile to impact.

DRP 15-091 revised various UFSAR Subsections of 9.2.3 to reflect the replacement of the existing makeup demineralizer equipment with a new mobile system at Byron Station.

DRP 15-092 revised UFSAR Sections 8.2 and 9.5.2.1 to reflect changes in the switchyard Communication System as a result of a design change that replaces the Microwave Communication System used for relay tripping of breakers for line protection with a direct fiber connection to the switchyard fiber ring for Byron Station transmission line L0622.

DRP 15-094 revised UFSAR Table 3.2-1 to remove reference to the Raw Water Including Cooling Lake Makeup and Blowdown (WL) System since this system was never used and delete certain detailed descriptions regarding the CW System.

DRP 15-096 revised UFSAR Section 5.3.2.1 to clarify that the surveillance capsule withdrawal schedule requirements are governed by 10 CFR 50, Appendix H.

DRP 15-098 revised various UFSAR Subsections of 2.4 and 9.2 to enhance the description of the minimum allowed river level based on Byron Station TS limits.

DRP 15-100 revised UFSAR Section 10.4.5 to indicate that the CW System and Non-Essential Service Water (WS) System pumps are stopped procedurally at Braidwood Station following a seismic event that results in dike failure.

DRP 15-101 revised UFSAR Section 9.3.1 and Table 8.1-1 to describe conformance with Branch Technical Position ICSB-8, "Use of Diesel-Generator Sets for Peaking."

DRP 15-103 revised UFSAR Section 15.5.1.2.to clarify the discussion that states the inadvertent operation of the "Emergency Core Cooling System During Power Operation" event will proceed and terminate as described in UFSAR Section 15.6.1, "Inadvertent Opening of a Pressurizer Safety or Relief Valve."

DRP 15-105 revised UFSAR Section 9.1.5.4.1.5 to update compliance with ANSI B30.9-1971 to ANSI B30.9-2010 to allow use of synthetic slings at Braidwood Station.

DRP 15-107 revised UFSAR Sections 4.2.1, 4.2.3.3, 4.2.5 and Table 1.6-1 to reflect the adoption of the new clad corrosion model and PAD 4.0 Code.

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Attachment A Braidwood / Byron UFSAR Revision 15 Change Summary DRP 15-108 revised UFSAR Table 12.3-3 setpoint associated with the Containment Fuel Handling Incident Monitors (1/2RE-AR01 1 and 1/2RE-AR012) for consistency with Braidwood TS Amendment No. 178 and Byron TS Amendment No. 184.

DRP 15-109 revised UFSAR Section 12.3.1.17 to delete reference to attached insulation being stored in the Old Steam Generator Storage Facility (OSGSF) since the insulation was never stored in the OSGSF and was shipped offsite instead.

DRP 15-110 revised UFSAR Section 9.3.4.1.2.6 to clarify that nitrogen may be added to the Volume Control Tank (VCT) up to 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> prior to Mode 3 to evacuate hydrogen from the VCT at Byron Station.

DRP 15-111 revised UFSAR Section 11.4.2.7 to provide a description of the Dry Active Waste Storage Facility at Braidwood Station.

DRP 15-121 revised UFSAR Section 8.3.1.2 to include discussion of Emergency Diesel Generator Room thresholds providing additional flood protection.

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Attachment B Summary of Fire Documentation Revision Packages (FDRPs)

Incorporated into Braidwood I Byron Stations Fire Protection Report - Amendment 26 The following Fire Documentation Revision Packages (FDRP) are being incorporated into the 26th Amendment of the Braidwood / Byron Fire Protection Report.

FDRP 24-004 - Revised Table 2.2-3 for Braidwood to incorporate polycarbonate as a result of EC 371667.

FDRP 25-031 - Revised FPR Section 2.4.2.9 and Table 2.4-4 for Braidwood based upon the modifications made as described in EC 384009.

FDRP 25-044 - Revised FPR Subsections 2.4.2.3, 2.4.2.80, 2.4.2.81, 2.4.2.97, 2.4.2.97, 2.4.2.109, and 2.4.2.117 for Byron to modify safety-related circuits associated with chemical and volume control valves as documented in EC 385952.

FDRP 25-048 - Revised FPR Section 2.4.2.9 for Byron to account for changes to fire wrap as documented in EC 386151.

FDRP 25-049 - Revised FPR Section 2.4.2.10 and Table 2.4-4 for Braidwood as a result of modifications made under EC 385562.

FDRP 25-066 - Revised FPR Subsections 2.4.2.40, 2.4.2.71, 2.4.2.109 and 2.4.2.117 and Table 2.4-4 for Byron to modify safety related circuits associated with chemical and volume control valves in order to prevent the effect of fire induced hot shorts resulting in spurious operation of the valves as described in EC 387066.

FDRP 25-080 - Revised FPR Sections 2.3.3.1, 2.3.3.4, 2.3.5.1, 2.3.5.3, and FPR Table 3-1 for Braidwood as a result of HELB modifications performed under EC 388397.

FDRP 25-081 - Revised FPR Sections 2.3.3.2, 2.3.3.5, 2.3.5.2, 2.3.5.4 for Byron, and Byron Table 3-2 as a result of HELB modifications performed under EC 388442.

FDRP 25-082 - Revised FPR Table 3-2 for Byron to incorporate deviations made to NFPA 90A as a result of HELB modifications performed under EC 388443.

FDRP 25-084 - Revised FPR Table 2.4-4 for Byron for existing safe shutdown cables abandoned in place and replaced by a new safe shutdown cable to support modifications associate with EC 388479.

FDRP 25-085 - Revised FPR Table 3-1 for Braidwood as a result of HELB modifications performed under EC 388398.

FDRP 25-088 - Revised FPR Table 2.2-3 and Section 2.3.11.12 for Byron to incorporate additional combustible loading associated with the permanent installation of the work enclosure as described in EC 389790.

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Attachment B Summary of Fire Documentation Revision Packages (FDRPs)

Incorporated into Braidwood I Byron Stations Fire Protection Report - Amendment 26 FDRP 25-089 - Revised FPR Table 2.4-4 for Braidwood for Fire Zones 3.1-1, 5.1-1, 9.1-1, 11.3-0, 11.4-0, 11.5-0, 11.6-0, and 18.1-1 to document changes to safe shutdown cable in support modifications as performed in EC 388475.

FDRP 25-093 - Revised FPR Pages 2.4-31, 2.4-39, 2.4-287, and 2.4-293 for Braidwood to state that RH8716A & RH8716B is credited if the valve is available for Fire Zones 11.3-1 and 11.3-2. The safe shutdown analysis is also revised to state that credit is taken to close valves S18812A & S18812B and either RH8716A & RH8716B (if available) for Fire Zone 2.1-0.

FDRP 26-001 - Revised FPR 2.4-1 and FPR Section 2.4 for Braidwood as a result of HELB detection logic added by EC 389634.

FDRP 26-002 - Revised FPR Table 2.4-1 Pages 18, 19, 109, 110, 171,172, 194, 254, 270, 271, 313, 314, 1014 and 1048 as well as FPR Section 2.4 Pages 84 and 428 as a result of EC 389728 at Byron Station.

FDRP 26-003 - Revised FPR Table 2.2-3 and Subsection 2.3.17.2 for Byron for Fire Zone 17.1-1 as a result of combustible loading changes as documented by EC 389967.

FDRP 26-004 - Revised FPR Table 2.4-4 for Fire Zones 3.1-1, 3.2A-1, 3.2C-1, 3.2D-1, 5.1-1, 9.1-1, 11.3-0, 11.4-0, 11.5-0, 11.6-0, and 18.1-1 as a result of EC 388894 at Byron Station.

FDRP 26-007 - Revised FPR Table 3-1 for Braidwood to incorporate deviations to NFPA 13 as discussed in EC 399104.

FDRP 26-010 - Revised FPR Subsections 2.3.3.2, 2.3.3.5, 2.3.5.4, and Table 3-2 for Braidwood to incorporate changes made by HELB modifications as discussed in EC 388947.

FDRP 26-011 - Revised FPR Subsections 2.3.3.1 for Fire Zone 3.1-1, 2.3.3.4 for Fire Zone 3.2A-1, 2.3.5.1 for Fire Zone 5.1-1, and 2.3.5.3 for Fire Zone 5.2-1, and Byron FPR Table 3-1 as a result of EC 388895 at Byron Station.

FDRP 26-012 - Revised FPR Table 3-2 for Braidwood to incorporate deviations made to NFPA 90A as a result of HELB modifications as discussed in EC 388948.

FDRP 26-013 - Revised FPR Table 3-1 to incorporate deviations to NFPA 90A as a result of EC 388896 at Byron Station.

FDRP 26-014 - Revised FPR Table 2.2-3 for Byron for Fire Zone 17.1-2 for additional combustible loading as described in EC 390171.

FDRP 26-015 - Revised Braidwood I Byron FPR Table 3-1, Page 3-10 to update deviations to NFPA 14 as addressed in ECR 408206.

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Attachment B Summary of Fire Documentation Revision Packages (FDRPs)

Incorporated into Braidwood I Byron Stations Fire Protection Report - Amendment 26 FDRP 26-016 - Revised FPR Subsections 2.3.5.1 and 2.3.9.1 for Byron, FPR Figures 2.3-10 Sheet 1, 2.3-10 Sheet 2, 2.3-10 Sheet 3, 2.3-12 Sheet 1, 2.3-12 Sheet 2, and 2.3-12 Sheet 3; Byron FPR Figures 2.3-10 Sheet 4 and 2.3-12 Sheet 4; Byron FPR Subsections 2.4.2.31, 2.4.2.32, 2.4.2.33, 2.4.2.34, 2.4.2.48, 2.4.2.49, 2.4.2.52, 2.4.2.53, 2.4.2.57, 2.4.2.58, 2.4.2.59, and 2.4.2.60; Byron FPR Table 3-1, and Byron FPR Subsections 3.7.e, 3.7.h, and 3.7.i as a result of HELB modifications as made in EC 391812.

FDRP 26-017 - Revised FPR Subsections 2.3.5.1 and 2.3.9.1, FPR Figures 2.3-10 Sheet 1, 2.3-10 Sheet 2, 2.3-10 Sheet 3, 2.3-12 Sheet 1, 2.3-12 Sheet 2, 2.3-12 Sheet 3, 2.3-10 Sheet 4, 2.3-12 Sheet 4, Subsections 2.4.2.31, 2.4.2.32, 2.4.2.33, 2.4.2.34, 2.4.2.48, 2.4.2.49, 2.4.2.52, 2.4.2.53, 2.4.2.57, 2.4.2.58, 2.4.2.59, 2.4.2.60, Table 3-1 and FPR Subsections 3.7.e, 3.7.h, 3.7.i for Braidwood as a result of HELB modifications as discussed in EC 391762.

FDRP 26-018 - Revised FPR Table 3-1 for Braidwood as a result of HELB modifications made under EC 392191.

FDRP 26-019 - Revised FPR Table 3-1 to incorporate deviations to NFPA 90A as a result of EC 392208 at Byron Station.

FDRP 26-020 - Revised FPR Subsections 2.4.2.3 (Fire Zone 2.1-0). 2.4.2.8 (Fire Zone 3.2-0),

2.4.2.12 (Fire Zone 3.28-2), 2.4.2.14 (Fire Zone 3.2C-2), 2.4.2.16 (Fire Zone 3.2D-2), 2.4.2.18 (Fire Zone 3.2E-2), 2.4.2.22 (Fire Zone 3.38-2), 2.4.2.24 (Fire Zone 3.3C-2), 2.4.2.26 (Fire Zone 3.3D-2), 2.4.2.28 (Fire Zone 3.4A-2), 2.4.2.40 (Fire Zone 5.5-2), 2.4.2.80 (Fire Zone 11.3-0),

2.4.2.82 (Fire Zone 11.3-2), 2.4.2.97 (Fire Zone 11.4-0), 2.4.2.109 (Fire Zone 11.5-0) and 2.4.2.117 (Fire Zone 11.6-0) and Tables 2.4-2 and 2.4-4 as a result of EC 385102 at Byron Station.

FDRP 26-021 - Revised Braidwood / Byron FPR Figures 2.2-8, 2.3-8 Sheet 2, and 2.3-8 Sheet 4 to replace existing scissor gates with manually operated, hinged blast doors for HELB resistance as described in EC 391764 (BRW) and EC 391813 (Byron).

FDRP 26-022-Revised FPR Section 2.3.11.3, Table 2.2-3 and Page 2.2-28 for Braidwood to incorporate additional combustible loading associated with the installation of a portable work enclosure as a result of EC 392670.

FDRP 26-023 - Revised FPR Section 2.3.18.15, Page 2.3-182 for Byron to correct the quantity of oil in the Main Power Transformers as documented in ATI 1450851-2.

FDRP 26-024 - Revised Braidwood / Byron FPR Section A.5.4.7, page A5.4-15 to insert a comment to state that it is acceptable to use a UL rated 6A dry chemical extinguisher in place of the UL rated 10A dry chemical extinguisher as described in EC 392896.

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Attachment B Summary of Fire Documentation Revision Packages (FDRPs)

Incorporated into Braidwood / Byron Stations Fire Protection Report - Amendment 26 FDRP 26-025-Revised Braidwood I Byron FPR Section 2.3.18.7, Page 2.3-171a to correctly describe the fire proofing configuration as designed and licensed in the OA and OB HVAC rooms as documented in ATI 1500167-03.

FDRP 26-026 - Revised FPR Table 3-2 for Braidwood to incorporate a deviation from NFPA 90A as a result of HELB modifications as discussed in EC 392192.

FDRP 26-028 - Revised FPR Subsections 2.3.8.5 and 2.3.11.41 for Braidwood; FPR Figure 2.3-12 Sheet 3 and Braidwood FPR Figure 2.3-12 Sheet 4; Braidwood FPR Subsections 2.4.2.49 and 2.4.2.109; and Braidwood FPR Table 3-1; Braidwood FPR 3.7-13 to document changes made by HELB modifications as described in EC 392850.

FDRP 26-029 - Revised FPR Subsections 2.3.8.5, 2.3.11.41 for Byron, Figure 2.3-12 Sheet, 2.3-12 Sheet 4 and Byron Subsections 2.4.2.49 and 2.4.2.109, Table 3-1 and Subsection 3.7.h to incorporate changes made by HELB modifications as a result of EC 393481.

FDRP 26-030 - Revised FPR Table 3-2 to incorporate deviations to NFPA 90A as a result of EC 392209 at Byron Station.

FDRP 26-031 - Revised FPR Table 2.2-3 and Sections 2.3.8.1, 2.3.8.2, 2.3.8.4, 2.3.8.6, 2.3.8.8, 2.3.8.10, 2.3.14.6, 2.3.18.25, 2.3.18.28, 2.3.18.41, 2.3.18.43, 2.3.18.46, and 2.3.18.48 for Byron to add Plexiglas robust barriers to several fire zones as described in EC 393953.

FDRP 26-032 - Revised FPR Pages 2.3-71 and 2.3-72 for Byron to correctly describe the fire proofing configuration in the Unit I and Unit 2 Auxiliary Boiler rooms. This is described in EC 394239.

FDRP 26-033 - Revised FPR Table 3-1 Page 3-1 Ia for Byron to include two new deviations to NFPA 13 associated with the foam suppression systems in the U1/U2 Diesel Oil Storage Tank Rooms as documented by EC 381603.

FDRP 26-034 - Revised FPR Table 3-1 for Braidwood to update the current deviation table to reflect the current status.

FDRP 26-037 - Revised FPR Section 2.3.18.4 for Byron to list a new combustible in Fire Zone 18.2-2. This is described in ECR 411436.

FDRP 26-038 - Revised FPR Table 2.2-3, Pages 2.2-26, 2.2-33a, 2.2-34a, Section 2.3, Pages 2.3-75a, 2.3-146a, and 2.3-163 for Braidwood as a result of Minor Revision IOA of ATD-0026 and as discussed in EC 394634.

FDRP 26-039 - Revised FPR Subsections 2.3.18.1, 2.3.18.2, 2.4.2.144, and 2.4.2.145 as a result of HELB modifications in EC 392475 at Byron Station.

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