RS-13-018, Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049)

Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049)

ML13060A364
Person / Time
Site:	Byron
Issue date:	02/28/2013
From:	Kaegi G Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
EA-12-049, RS-13-018
Download: ML13060A364 (70)

Text

Director - LicensingRegulatory Exelon Generation Byron Station, Units 1 and 2 Mitigation Strategies (MS)

General Integrated Plan Elements PWR 06 section 01 section 1.0 Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Determine Applicable Extreme External Hazard Ref: NEI 12-06 section 4.0 -9.0 JLD-ISG-2012-01 section 1.0 Byron

per 9.W

assumptions Provide key assumptions associated with implementation of implement FLEX Strategies:

strategies.

-06 sectionProvide key assumptions associated with implementation of FLEX Strategies:

guidance, deviations Provide a sequence of events and identify any time constraint required for success including the technical basis for the time constraint.

Include a description of any alternatives to the guidance, and provide a milestone schedule of planned action.

Strategies that have a time constraint to be successful should be identified with a technical basis and a justification provided that the time can reasonably be met or example, a walk through of deployment).

Describe in detail in this section the technical basis for the time constraint identified on the sequence of events timeline Attachment IA.

Include a description of any alternatives to the guidance, and provide a milestone schedule of planned action.

Strategies that have a tin1e constraint to be successful should be identified with a technical basis and a justification provided that the time can reasonably be met (for example, a walk through of deployn1ent).

Describe in detail in this section the technical basis for the time constraint identified on the sequence of events time line Attachment lAo

See attached sequence of events timeline (Attachment IA).

Technical Basis Support information, see attached Significant Reference Analysis Deviation Table (Attachment I B)

+5 to 15 minutes - Based on the plant response and ensure that aligned and low suction DG to the station connections. Once aligned the Asia at a minimum of Page 5 of 67 See attached sequence of events timeline (Attachment lAY. Technical Basis Support information, see attached NSSS Significant Reference Analysis Deviation Table (Attachment lB)

Describe how the strategies will be deployed in all modes.

Provide a milestone schedule. This schedule

should include:Modifications timeline Modifications o Phase 2 Modifications o Phase 3 ModificationsProcedure guidance development o Strategies

o MaintenanceStorage plan (reasonable protection)Staffing analysis completionFLEX equipment acquisition timelineTraining completion for the strate ies in all modes.

The dates specifically required by the order are obligated or committed dates. Other dates are planned dates subject to change.Updates will be provided in the periodic (six month) status reports.

See attached milestone schedule (Attachment 2)

Exelon Generation(Exelon) fully expects to meet the site implementationlcompliance dates provided in-019,with no exceptions. Any changes or additions to the planned interim milestone dates will be provided in a future 6-month update0/20/11

................ " .. " .. ri Describe how the strategies will be deployed in all modes.

The dates specifically required by the order are obligated or comm.itted dates. Other dates are planned dates subject to change. Updates will be provided in the periodic (six month) status reports. See attached milestone schedule (Attachment Regional Response Centers operational Ref: NEI 1206 section 13.1 how the Provide a description of the programmatic controls programmatic controls equipment protection, storage and deployment and be met.equipment quality. See section 11 in NEI 12-06. Storage of equipment, 11.3, will be documented in later sections of this 06 sectiontemplate and need not be included in this section.See section 6.0 of JLD-ISG-2012-01.

Describe training List training plans for affected organizations or describe the plan for training development Provide a description of the programmatic controls equipment protection, storage and deployment and equipment quality. See section in NEI 12-06. Storage of equipment, will be documented in later sections of this template and need not be included in this section. See section 6.0 of JLD-ISG-2012-01.

List training plans for affected organizations or describe the plan for training development Byron Station, 2 Mitigation Strategies Integrated Plan Describe Regional Response Center plan B ron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Describe Regional Response Center plan and

Maintain Heat Removal Determine Baseline coping capability with installed coping' modifications not including utilizing methods described in Table 3Depressurize SG for Makeup with Portable Injection SourceSustained Source 01 section 2 and 3 Provide a general description, of the coping strategies using installed equipment including station modifications that are proposed to maintain core cooling. Identify methods (AFW/EFW)and strategy(ies) utilized to achieve this coping time.

because more personnel are on Maintain Core Cooling Heat Removal Determine Baseline coping capability with installed coping modifications not including FLEX modifications, utilizing methods described in Table 3-2 of NEI 12-06:

• AFWIEFW

• Depressurize SG for Makeup with Portable Injection Source

• Sustained Source of Water PWR Installed Equipment Phase 1 Provide a general description of the coping strategies using installed equipment including station modifications that are proposed to maintain core cooling. Identify methods (AFWIEFW)and strategy(ies) utilized to achieve this coping time .

Details:

Provide a brief description of Procedures

/ StrategiesGuidelines Identify modifications RCS Pressure:lor Provide a brief description of Procedures I Strategies I Guidelines Identify modifications Key Reactor Parameters Details:

Containment Pressure: PI-Containment Integrity Notes:

Notes: Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Page 11

Maintain CoolingHeat RemovalProvide a general description of the coping strategies using on-site portable equipment including station Identi achieve this coping time.

Details:p p discharge:pu p suction:

Provide a brief description of Procedures modifications Maintain Core Cooling Heat Removal PWR Portable Equipment Phase 2 Provide a general description of the coping strategies using on-site portable equipment including station modifications that are proposed to maintain core cooling.

methods and strategy(ies) utilized to achieve this coping time. S/Os.

S/O ..... r"' .. TA ....

Provide a brief description of Procedures I Strategies I Guidelines Identify modifications Details:

"'1J"-'vALA

.... BIC AID Byron Station, 1 and 2 Mitigation Strategies Integrated Plan Maintain Heat Removal Key Reactor Parameters SG Pressure:

Function Byron Station, Units 1 and 2 Mitigation Strate ies Integrated Plan Key Reactor Parameters Maintain Core Cooling Heat Removal PWR Portable Equipment Phase 2 and Page Seismic Maintain Heat Removal PWR Portable Equipment Phase 2 StorageProtection of Equipment :

Describe storageprotection plan or schedule to determine storage requirements Byron Flooding Severe Storms with High Winds Snow, Ice, and Extreme High Temperatures Byron Station, Units 1 and 2 Mitigation Strate ies Integrated Plan Maintain Core Cooling Heat Removal PWR Portable Equipment Phase 2 Storage / Protection of Equipment

Describe stora e I rotection Ian or schedule to determine stora e re uirements Seismic Flooding Severe Storms with High Winds Snow, Ice, and Extreme Cold High Temperatures in Page 14 of 67

Maintain Heat Removal Equipment Phase 2 locations will be used until building construction Conceptual Design (Attachment 3 contains Conce tual Sketches)

ModificationsProtection of connections Strategy Identify Strategy including how the equipment will be deployed to the point of use.

Identify modifications Identify how th e connection is protected Exelon Generation(Exelon) has not finalized the engineering designs for P Rev 0, Reactor Coolant System Response to the Extended for Westinghouse, Engineering, NSSS Identify Strategy including how Identify modifications the equipment will be deployed Identify how the connection is protected to the oint of use.

Maintain

& Heat Removal Equipment Phase 2 Maintain Core Cooling & Heat Removal PWR Portable Equipment Phase 2 Byron Station, 1 and 2 Mitigation Strategies Integrated Plan Maintain Heat Provide a general description of the coping strategies using phase 3 equipment including modifications that are proposed to maintain core cooling. Identify methods and strategy(ies) utilized to achieve this coping time.

Details:

description

/ Strategies Identify modifications Key Reactor Parameters Confirm that procedure

/guidance exists or will be developed to support implementation with a description of the procedure /strategy

/guideline.

List modifications necessary for phase 3 List instrumentation credited or recovered for this coping evaluation.

SG Pressure:

`unction Maintain Core Cooling Heat Removal PWR Portable Equipment Phase 3 Provide a general description of the coping strategies using phase equipment including modifications that are proposed to maintain core cooling. Identify methods and strategy(ies) utilized to achieve this coping time.

Provide a brief description of Procedures Strategies

/ Guidelines Identify modifications Key Reactor Parameters Details: Confirm, that procedure/guidance exists or will be developed to support implementation with a description of the procedure strategy / guideline.

List modifications necessary for phase 3 List instrumentation credited or recovered for this coping evaluation.

Byron Station, 1 and 2 Mitigation Strategies Integrated Plan Maintain Heat Removal Equipment Phase 3

Deployment Conceptual Design (Attachment 3 contains Conceptual Sketches)

Modifications Protection of connections Strategy Identify how the connection is protected will utilize Phase 2 connection points.

Identify Strategy including how Identify modifi cations (the equipment will be deployed to the point of use.No modifications are required from the RRC to the stagingother than those outlined in area. From there the equipment Phase 2 of this plan.... 'i* ...

I ALA"""' .. A' .... ...,....,

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.... ''""

Identify Strategy including how Identify modifications the equipment will be deployed Identify how the connection is protected to the oint 0

Maintain Heat Removal PWR Portable Equipment Phase 3 Notes:

Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Maintain Core Cooling Heat Removal PWR Portable Equipment Phase 3 Notes:

engineering of

Maintain Determine Baseline coping capability with installed coping modifications not including FLEX modifications, utilizing methods described in Table 3-2 of NEI 12-06:Low Leak RCP Seals or RCS makeup requiredAll Plants Provide Means to Provide Borated RCS Makeup PWR Installed Equipment Phase 1:

Provide a general description of the coping strategies using installed equipment including modifications that are proposed to maintain core cooling. Identify methods (Low Leak RCP Seals and/or borated high pressure RCS makeup)and strategy(ies) utilized to achieve this coping time.

Cold Shutdown and Refueling:

When in Cold Shutdown and Refueling, many variables exist which impact the ability to cool the core. In the event of an ELAP during these Modes, installed plant systems cannot be relied upon to cool the core, thus transition to Phase 2 will begin immediately. All efforts will be made to control reactor temperature below 212°F to prevent an unplanned mode change. Exelon has a program in place (Ref. 3) to determine the time to boil for all conditions during shutdown periods. time will be used to determine the time required to complete transition to Phase 2.

To accommodate the activities of vessel disassembly and refueling, water levels in the reactor vessel and the reactor cavity are often changed. The most limiting condition is the case in which the reactor head is removed and water level in the vessel s at or below the reactor vessel flange. If an ELAPLUHS occurs during this condition then (depending on the time after shutdown) boiling in the core may occur quite rapidly.

Deploying and implementing portable FLEX pumps to supply injection flow must commence immediately from the time of the event.

be plausible because more personnel are on site during outages to provide the necessary resources. Strategies for makeup water include Maintain RCS Inventory Control Determine Baseline coping capability with installed coping modifications not including FLEX modifications, utilizing methods described in Table 3 .. 2 of NEI 12-06:

• Low Leak RCP Seals or RCS makeup required

• All Plants Provide Means to Provide Borated RCS Makeup PWR Installed Equipment Phase 1: Provide a general description of the coping strategies using installed equipment including modifications that are proposed to maintain core cooling. Identify methods (Low Leak RCP Seals and/or borated high pressure RCS makeup)and strategy(ies) utilized to achieve this coping time.

"", .. nLV," 75°F/hr

Maintain Details:

description of Procedures

/ StrategiesGuidelines Identify modifications Parameters Confirm that procedure/guidance exists or will be developed to support implementation

List modifications this time.

List instrumentation credited for this coping evaluation.

Essential Instruentation SG Level:

Maintain RCS Inventory Control 2/01113 Provide a brief description of Procedures 1 Strategies

/ Guidelines Identify modifications Key Reactor Parameters Details: Confirm that procedure/guidance exists or will be developed to support implementation List modifications List instrumentation credited for this coping evaluation.

MaintainNotes:

Order Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Maintain RCS Inventory Control NI-NR006A/B, Notes:

Maintain Provide a general description of the coping strategies using on-site portable equipment including modifi cations that are proposed to maintain Inventory Control, Identify methods (Low Leak RCP Seals andlor borated high pressure RCS makeup)and strategy(ies)utilized to achieve this coping time.

Details: Confirm that procedurelguidance exists or will be developed to support implementation List modifications Provide a brief description of Procedures

/ StrategiesGuidelines Byron Station, Units 1 and 2 Miti ation Strategies lnte rated Plan Maintain RCS Inventory Control PWR Portable Equipment Phase 2: Provide a general description of the coping strategies using on-site portable equipment including modifications that are proposed to maintain Inventory Control. Identify methods (Low LeakRCP Seals and/or borated high pressure RCS makeup)and strategy(ies) utilized to achieve this coping time. into line Provide a brief description of Procedures I Strategies I Guidelines Identify modifications Details: Confirm that procedure/guidance exists or will be developed to support implementation and List modifications Page 23 of 67

Maintain Equipment Parameters List instrumentation credited or recovered for this coping evaluation.(component 6-month B ron Station, Units 1 and 2 Mitigation Strate ies Integrated Plan Key Reactor Parameters Maintain RCS Inventory Control PWR Portable Equipment Phase 2:

or List instrumentation credited or recovered for this coping evaluation.

and 24 of67

Maintain RCS Inventory Control PWR Portable Equipment Phase 2:

Storage / Protection of Equipment:

Describe storageprotection plan or schedule to determine storage requirements List Protection or schedule to protect List Protection or schedule to protect List Protection or schedule to protect Seismic Flooding Severe Storms with High I

List Protection or schedule to protect List Protection or schedule to protect

Maintain Equipment List Protection or schedule to protect List Protection or schedule to protect Snow, Ice, and Extreme High Temperatures Deployment Conceptual Modification (Attachment 3 contains Conceptual Sketches)

Modifications Protection of connections Identify Strategy including how the equipment will be deployed to the point of use.

Identify modifications Identify how the connection is protected

s.

Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Snow, Ice, and Extreme Cold High Temperatures Strategy Maintain RCS Inventory Control PWR Portable Equipment Phase 2: List Protection or schedule to protect r>rn ... nr.a T'!> ... Schedule List Protection or schedule to protect nr> .... "t.*l1ntan Deployment Conceptual Modification (Attachment 3 contains Conce tual Sketches)

Modifications Protection of connections Identify modifications Identify how the connection is protected

Maintain PWR Portable Equipment Phase 2:

Notes:

Maintain RCS Inventory Control PWR Portable Equipment Phase 2:

Maintain PWR Portable Equipment Phase 3:

Provide a general description of the coping strategies using phase 3 equipment including modifications high pressure RCS makeup )and strategy(ies) utilized to achieve this coping time.

Details: Confirm that procedure/guidance exists or will be developed to support implementation List modifications List instrumentation credited or recovered for this coping evaluation.

modifications Key Reactor Parameters RCS pressure boundary andpressure control Byron Station, Units 1 and 2 Mitigation Strate ies Integrated Plan Maintain ReS Inventory Control PWR Portable Equipment Phase 3: Provide a general description of the coping strategies using phase equipment including modifications that are proposed to maintain inventory control. Identify methods (Low Leak RCP Seals and/or borated high pressure RCS makeup )and strategy(ies) utilized to achieve this coping time. v ...... ' ........ 'v ..

Provide a brief description of Procedures

/ Strategies I Guidelines Identify modifications Key Reactor Parameters Details: Confirn'l that procedure/guidance exists or will be developed to support implementation List nwdifications List instrumentation credited or recovered for this coping evaluation.

Maintain RCS Inventory Control Equipment Strategy In addition to the parameters listed in NEI 12-06 Rev. 0 Section the following additional parameters will be evaluated foruse as the detailed strategy is developed. Closure of this item will be communicated in a future 6-month update.-957

Deployment Conceptual Modification (Attachment 3 contains Conce tual Sketches)

ModificationsProtection of connections Identify Strategy including how the equipment will be deployed to the point of use.

Equipment will be delivered to the staging area. From there the equipment will be transported to the site and hooked up by Identify modifications Identify how the connection is protected Strategy Identify Strategy including how the equipment will be deployed to the point of use. Maintain RCS Inventory Control PWR Portable Equipment Phase 3:

Deployment Conceptual Modification Modifications Protection of connections Identify modifications Identify how the connection is protected

Maintain RCS Inventory Control PWR Portable Equipment Phase 3:

Notes:

B ron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Maintain RCS Inventory Control PWR Portable Equipment Phase 3: Notes:

Maintain Containment Determine Baseline coping with installed copingmodifications not including utilizing methods described in Table Equipment Provide a general description of the coping strategies using installed equipment including modifications that are proposed to maintain containment.

Iden tify methods (containment spray

/Hydrogen igniter) and strategy(ies) utilized to achieve this coping time.

Details: Provide a brief description of Procedures

/ StrategiesGuidelines Identify modifications Key Containment Parameters List instrumentation credited or recovered for this coping evaluation.

SG Pressure:

Maintain Containment Determine Baseline coping capability with installed coping modifications not including FLEX modifications, utilizing methods described in Table 3 .. 2 of NEI 12 .. 06:

PWR Installed Equipment Phase 1: Provide a general description of the coping strategies using installed equipment including modifications that are proposed to maintain containment.

Identify methods (containment spray/Hydrogen igniter) and strategy(ies) utilized to achieve this coping time.

",or .. ,

Provide a brief description of Procedures I Strategies I Guidelines Identify modifications Key Containment Parameters Details:

List instruntentation credited or recovered for this coping evaluation.

Maintain Containment Notes:

B ron Station, Units 1 and 2 Mitigation Strategies Inte rated Plan Maintain Containment or

Provide a general description of th e coping strategies using on-site portable equipment including modifications that are proposed to maintain core cooling. Identify methods (containment spray/hydrogen i gniters) and strategy(ies) utilized to achieve this coping time.

Parameters Confirm that procedure/guidance exists or will be developed to support implementation List modifications List instrumentation credited or recovered for this coping evaluation.

Essential Instruentation

TI-433B Containment Pressure: PI-Safety nction Maintain Containment PWR Portable Equipment Phase 2: Provide a general description of the coping strategies using on-site portable equipment including modifications that are proposed to maintain core cooling. Identify methods (containment spray/hydrogen igniters) and strategy( ies) utilized to achieve this coping time. Provide a brief description of Procedures Strategies

/ Guidelines Identify modifications Key Containment Parameters Details: Confirm that procedure/guidance exists or will be developed to support implementation List modifications List instrumentation credited or recovered for this coping evaluation.

Seismic Flooding Maintain Containment StorageProtection of Equipment:

Describe stora e / rotection lan or schedule to determine stora e re uirements List Protection or schedule to protect NA List Protection or schedule to protectList Protection or schedule to protectList Protection or schedule to protectList Protection or schedule to protectDeployment Conceptual Modification (Attachment 3 contains Conceptual Sketches)

Severe Storms with High Snow, Ice, and Extreme High Temperatures Identify Strategy including how the equipment will be deployed to the point of use.

Modifications Identify modifications of connections Identify how the connection is protected I

.. ' .... "'-'A I

List Protection or schedule to protect List Protection or schedule to protect List Protection or schedule to protect List Protection or schedule to protect List Protection or schedule to protect Identify Strategy including how Identify modifications the equipment will be deployed Identify how the connection is protected to the oint 0 use.

Maintain Containment Notes:

Maintain Containment

Maintain Containment Provide a general description of the coping strategies using phase 3 equipment including modifications that are proposed to maintain core cooling. Identify methods (containment spray/hydrogen igniters) and strategy(ies) utilized to achieve this coping time.

Details:

description of ProceduresStrategiesIdentify Parameters Confirm that procedure/guidance exists or will be developed to support implementation List modifications List instrumentation credited or recovered for this coping evaluation.

SG Pressure-Containment Pressure: PI-Maintain Containment PWR Portable Equipment Phase 3: Provide a general description of the coping strategies using phase equipment including modifications that are proposed to maintain core cooling. Identify methods (containment spray/hydrogen igniters) and strategy( ies) utilized to achieve this coping time. Provide a brief description of Procedures I Strategies I Guidelines Identify modifications Key Containment Parameters Details: Confirm that procedure/guidance exists or will be developed to support implementation List modifications List instrumentation credited or recovered for this coping evaluation.

PCODS Strategy Maintain Containment Deployment Conceptual Modification (Attachment 3 contains Conce tual Sketches)

ModificationsProtection of connections Identify Strategy including how the equipment will be deployed to the point of use.

Identify modificationsIdentify how the connection is protected Notes:

Order Identify Strategy including how Identify modifications the equipment will be deployed Identify how the connection is protected to the oint of use.

Maintain Spent Fuel Pool Cooling Baseline coping coping" not including utilizingMakeup Injection Source PWR Installed Equipment Phase 1:

References:

1.Byron/Braidwood Nuclear Stations Updated Final Safety Analysis Report Revision 14, Table 9.1-1, dated December 2012.

Details:

description of Procedures

/ StrategiesGuidelines Maintain Spent Fuel Pool Cooling Determine Baseline coping capability with installed coping modifications not including FLEX modifications, utilizing methods described in Table 3-2 of NEI 12-06:

• Makeu with Portable In' ection Source PWR Installed Equipment Phase 1:

Provide a brief description of Procedures I Strategies I Guidelines Details:

SG Pressure:

Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Identify modifications Key SFP Parameter Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Notes: Exelon Generation Company, LLC (Exelon) has not finalized the engineering designs for designs will be developed to determine the final plan and associated itigating strategies.

Once Page 40 of 67 Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Notes:

on Byron Station, and 2 Mitigation Strategies Integrated Plan Maintain Provide a general description of the coping strategies using on-site portable equipment including modifications that are proposed to maintain spent fuel pool cooling.

Identify methods (makeup via portable injection source) and strategy(ies) utilized to achieve this coping time.

Details: Confirm that procedure/guidance exists or will be developed to support implementation List modifications

FP`

67 Maintain Spent Fuel Pool Cooling PWR Portable Equipment Phase 2: Provide a general description of the coping strategies using on-site portable equipment including modifications that are proposed to maintain spent fuel pool cooling. Identify methods (makeup via portable injection source) and strategy( ies) utilized to achieve this coping time.

Provide a brief description of Procedures I Strategies I Guidelines Identify modifications Details: Confirm that procedure/guidance exists or will be developed to support implem,entation List modifications

Maintain Spent Fuel(component #

Removal Instruments)

Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Key SFP Parameter Maintain Spent Fuel Pool Cooling and Seismic Flooding Maintain Spent Fuel Pool Cooling StorageProtection of Equipment:

Describe storageprotection plan or schedule to determine storage requirements List Protection or schedule to protect List Protection or schedule to protect List Protection or schedule to protect List Protection or schedule to protect Severe Storms with High Winds Snow, Ice, and Extreme I

List Protection or schedule to protect List Protection or schedule to protect List Protection or schedule to protect

..,,,'V'L,,,}o,"'"

List Protection or schedule to protect

Maintain List Protection or schedule to protect Deployment Conceptual Design (Attachment 3 contains Conceptual Sketches)

Modifications Protection of connections Strategy Identify Strategy including how the equipment will be deployed to the point of use.

Identify modifications

Identify how the connection is protected be an administrative program created to protect the connections from blockage during outages and non-outage Notes:

List Protection or schedule to protect Identify Strategy including how the equipment will be deployed to the oint of use.

Identify modifications Identify how the connection is protected

Maintain Portable Equipment Phase 3:

Provide a general description of the coping strategies using phase 3 equipment including modifications that are proposed to maintain spent fuel pool cooling. Identify methods (makeup via portable injection source)and strategy(ies) utilized to achieve this coping time.

Details: Provide a brief description of Procedures

/ StrategiesGuidelines Identify modifications Safety Function Confirm that procedure/guidance exists or will be developed to support implementation I RCS Pressure:

Maintain Spent Fuel Pool Cooling PWR Portable Equipment Phase 3: Provide a general description of the coping strategies using phase equipment including modifications that are proposed to maintain spentjueZ pool cooling. Identify methods (makeup via portable injection source)and strategy(ies) utilized to achieve this coping time.

Provide a brief description of Procedures I Strategies I Guidelines Identify modifications Key SFP Parameter Details: Confirm that procedure/guidance exists or will be developed to support implementation

Maintain Deployment Conceptual Design (Attachment 3 contains Conce tual Sketches)

Strategy ModificationsProtection of connections Identify Strategy i ncluding how Identify modifications the equipment will be deployed to the point of use.

Identify how the connection is protected are requiredByron will utilize Phase 2 than those outlined inconnection points.

Strategy Maintain Spent Fuel Pool Cooling Deployment Conceptual Design tual Modifications Protection of connections Identify modifications Identify how the connection is protected Byron Station, 1 and 2 Mitigation Strategies Integrated Plan Notes:

Maintain Spent Fuel Pool Cooling

Safety Functions Support Determine Baseline coping capability with installed coping modifications not including FLEX modifications.

Provide a general description of the coping strategies using installed equipment including station modifications that are proposed to maintain and/or support safety functions.

Identify methods and strategy(ies) utilized to achieve coping times.

Ref 1- Byron EC Evaluation 391872, Battery Coping Time 25v DC ESF Battery Banks, dated 2/8/13 Details: Confirm that procedure/guidance exists or will be developed to support implementation.

Notes:

Provide a brief description of ProceduresStrategies /

Guidelines Safety Functions Support Determine Baseline coping capability with installed coping modifications not including FLEX modifications.

PWR Installed Equipment Phase 1 Provide a general description of the coping strategies using installed equipment including station modifications that are proposed to maintain and/or support safety functions.

Identify methods and strategy( ies) utilized to achieve coping times. Provide a brief description of Procedures

/ Strategies Guidelines Identif modifications Key Parameters Details: Confirm that procedure/guidance exists or will be developed to support implementation.

Integrated Plan Safety Functions Support modifications that are proposed to maintain andlor support safety functions. Identify methods and strategy(ies) utilized to achieve coping times.

Details:Confirm that procedure/guidance exists or will be developed to support implementation with a description of the procedure / strategy

/guideline.

List modifications necessary for phase 2 Provide a brief description of Procedures

/ StrategiesGuidelines Safety Functions Support PWR Portable Equipment Phase 2 Provide a general description of the coping strategies using on-site portable equipment including station modifications that are proposed to maintain and/or support safety functions.

Identify methods and strategy( ies) utilized to achieve coping times.

Details: Provide a brief description of Procedures Strategies

/ Guidelines Confirm, that procedure/guidance exists or will be developed to support implementation with a description of the procedure strategy Identify modifications

/ guideline.

List modifications necessary for phase 2 u .... U .. ""JL

Safety Functions Support PWR Portable Equipment Phase 2 Electrical connection via spare breaker for UI-IS 480v Substation for a FLEXG to repower the 80 Substation for a deep well pump.

Key Parameters List instrumentation credited or recovered for this coping evaluation.

StorageProtection of Equipment :

Describe storageprotection plan or schedule to determine storage requirements List Protection or schedule to protect List Protection or schedule to protect Seismic Flooding 50 of 67 List instrumentation credited or recovered for this coping evaluation. I List Protection or schedule to protect List Protection or schedule to protect ......

.... ' .. "'TL:-.nT.

Safety Functions Support PWR Portable Equipment Phase 2 List Protection or schedule to protect

Snow, Ice, and Extreme Cold List Protection or schedule to protect High TemperaturesList Protection or schedule to protect

Severe Storms with High Winds Severe Storms with High Winds Snow, Ice, and Extreme Cold High Temperatures Safety Functions Support PWR Portable Equipment Phase 2 List Protection or schedule to protect List Protection or schedule to protect List Protection or schedule to protect

Functions Support PWR Portable Equipment Phase 2 Deployment Conceptual Design (Attachment 3 contains Conceptual Sketches)

Modifications Protection of connections Strategy Identify Strategy including how the equipment will be deployed to the point of use.

Identify modifications Identify how the connection is protected valves, and connectionswill meet requirements.

Notes:

Identify Strategy including how the equipm.ent will be deployed to the oint of use.

Identify modifications Identify how the connection is protected

Safety Functions Support PWR Portable Equipment Phase 3 Provide a general description of the coping strategies using phase 3 equipment i ncluding m odifications that are proposed to maintain andlor support safety functions. Identify methods and strategy(ies)utilized to achieve coping times.

Details:

Provide a brief description of Procedures

/ StrategiesGuidelines Safety Functions Support PWR Portable Equipment Phase 3 Provide a general description of the coping strategies using phase equipment including modifications that are proposed to maintain and/or support safety functions.

Identify methods and strategy(ies) utilized to achieve coping times.

Provide a brief description of Procedures Strategies

/ Guidelines Identify modifications Key Parameters Details:

Safety Functions Support Equipment Phase 3 Deployment Conceptual Design (Attachment 3 contains Conceptual Sketches)

Modifications Protection of connections Strategy Identify Strategy including how the equipment will be deployed to the point of use.

Identify modifications Identify how the connection is protected Notes:

Identify Strategy including how the equipment will be deployed to the oint of use.

Identify modifications Identify how the connection is protected Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Equipment Phase 2 Use and (potential

/flexibility) diverse usesI Performance Criteria Maintenance Containment Instrumentation x Accessibility x List portable equipment VAC Generator Per conceptual design Maintenance / PM requirements Equipment maintenance performed in accordance templates, as outlined in section H.

Medium pump 300 gpm at 300 psia At the injection point to the Steam Generators Equipment maintenance and testing will be performed in accordance templates, as outlined in section 6 and NEI 12-06 section 11.

PWR Portable Equipment Phase 2 Use and (potential/flexibility) diverse uses Perfonnance Criteria Maintenance List portable equipment List portable equipment Truck Use and (potential /flexibility) diverse usesI Performance Criteria Maintenance

E SFP PWR Portable Equipment Phase 2 Use and (potential/flexibility) diverse uses Peiformance Criteria Maintenance List portable equipment List portable equipment Three (3)

Satellite phones Fans Use and (potential Iflexibility) diverse uses Performance Criteria Maintenance maintenance SFP PWR Portable Equipment Phase 2 Use and (potential/flexibility) diverse uses Peiformance Criteria Maintenance List portable equipment List portable equipment PWR Portable Equipment Phase 2 Use and (potential /flexibility) diverse uses Performance Criteria Maintenance SFP PWR Portable Equipment Phase 2 Use and (potential/flexibility) diverse uses Performance Criteria Maintenance List portable I equipment

Use and (potential /flexibility) diverse uses Performance Criteria Notes has not been procured at the time of this submittal. The equipment listed is a generic list provided by theC andSFPList portable equipment Medium Voltage Diesel 300 psi shutoff head,gpm max flow 500 psi shutoff head, 500 gpm max flow PWR Portable Equipment Phase 3 Use and (potential/flexibility) diverse uses

Station, Units I and 2 Mitigation Strategies Integrated Plan Com ressor

Phase 3 Response EquipmentCommodities Item Radiation Protection Equipmentwill not stock this of equipment but this equipment will be requested site-tosite and utilityto-utility on an as required basis.

Commodities Fuel Requirements Heavy Equipment

Elapsed 5-15 mins s operating properly.

30 minx to ESF bus are supplying power

Power, attachment B for

Reference:

EC-Battery Coping Battery Banks, dated February 8,NAY-1 hour NA esigns are Plant @100%

Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Attachment lA Sequence of Events Timeline on DIGs.

75°P/hr 10 11 12 13 14 Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan FP FP).

pressure and ensure Maintainsection Maintain S arriving on site.

Judgment NA NA NA NAEnd of analytical simulationPage 63 of 67 Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Significant WCAP page Item Attachment IB NSSS Significant Reference Analysis Deviation Table Byron Station, 1 and 2 Mitigation Strategies Integrated Plan Milestone Schedule Site: Byron Jun 2014 Phase 1 modifications Phase 3 modifications Phase 2 modifications Phase 3 modifications Strategy procedures Maintenance procedures Staffing analysis Regional Response Center(will be a standard date No Page 65 of 67 Byron Station, Units 1 and 2 Mitigation Strategies Integrated Plan Site: Byron Attachment 2 Milestone Schedule date f'

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Attachment 3 Conceptual Sketches (Byron Electrical)

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