RS-13-097, Seismic Walkdown Checklists

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Seismic Walkdown Checklists
ML13192A447
Person / Time
Site: LaSalle Constellation icon.png
Issue date: 06/19/2013
From:
Exelon Generation Co
To:
Office of Nuclear Reactor Regulation
References
RS-13-097
Download: ML13192A447 (104)


Text

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 AC Seismic Walkdown Checklists (SWCs)

Table AC-1 provides a description of each item, anchorage verification confirmation, a list of Area Walk-By Checklists associated with each item, comments, and page numbers of each Seismic Walkdown Checklist. All items in Table AC-1 were deferred items listed in Table E-1 of Enclosure 2 of Exelon letter to the NRC (RS-12-163), and were accessible during the follow-on walkdowns.

Table AC-2 provides description of each item subject to supplemental internal inspections. All items in Table AC-2 were electrical cabinets subject to Supplemental Internal Inspections as listed in Table E-2 of Enclosure 2 of Exelon letter to the NRC (RS-12-163), and were accessible without safety and operational hazard.

Table AC-1. Summary of Seismic Walkdown Checklists Anchorage COMPONENT ID DESCRIPTION Verification AWC COMMENTS PAGE NO.

Confirmed?

2B21-AO04C ACCUMULATOR, MSRV N 5-1 SWEL 1 AC-3 2B21-FO13C C MS LINE SAFETY/RELIEF N/A 5-1 SWEL 1 AC-7 VLV 2B21-FO13C-A SRVC IMF-2 SOLENOID N/A 5-1 SWEL 1 AC-10 VALVE 'A' 2B21-F022C C MS INBD ISOL VLV N/A 5-2 SWEL 1 AC-13 2B21-F028C C MS OTBD ISOL VLV N/A 5-3 SWEL 1 AC-16 2B21-F028C-P2 VALVE, SOLENOID, O/B N/A 5-3 SWEL 1 AC-20 MSIV 2B21-F067C C MS OTBD ISOL ABOVE N/A 5-3 SWEL 1 AC-24 SEAT DRN VLV AC-1

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Table AC-2. Summary of Seismic Walkdown Checklists for Supplemental Internal Inspections COMPONENT ID DESCRIPTION PAGE NO.

2AP21 E DIV II 480V SWGR 236X AC-28 2AP21 E-303B TRANSFORMER, 236X AC-32 2AP78E DIV II 480V MCC 236X-1 AC-35 2AP81E DIV II 480V MCC 236X-3 AC-39 2DC02E DIV I 250 VDC DISTRIBUTION BUS 2 AC-42 2DC03E 250VDC BATTERY CHARGER AC-48 2DC05E 250VDC MCC 221X AC-53 2DC13E DIV II 125VDC DISTRIBUTION PANEL 212Y AC-57 2DC15E DIV II 125VDC DISTRIBUTION BUS 2B AC-62 2DC16E DIV II 125VDC BATTERY CHARGER 2BB AC-67 2PL33J ASSY - PANEL, RHR B/C CUBE VENT AC-71 2PL34J ASSY - PANEL, RHR A CUBE VENT AC-74 2PL35J ASSY - PANEL, LPCS CUBE VENT AC-77 AC-2

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 4 Status: FY] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21 -A004C Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

ACCUMULATOR, MSRV Project: La Salle 2 SWEL Location (BIdg, Elev, Room/Area): DW, 777.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% No of SWEL items requiring such verification)?
2. Is the anchorage free of bent, broken, missing or loose hardware? Yes
3. Is the anchorage free of corrosion that is more than mild surface oxidation? Yes
4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable The accumulatoranchorageconsists of a robust bolted/welded connection to drywell steel framing.
5. Is the anchorage configuration consistent with plant documentation? (Note: Not Applicable This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
6. Based on the above anchorage evaluations, is the anchorage free of Yes potentially adverse seismic conditions?

AC-3

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 4 Status: Eli N U Seismic Walkdown Checklist (SWC)

EquipmentID No.: 2B21-AO04C Equipment Class: (21) Tanks and Heat Exchangers EffectsDescription:

Equipment ACCUMULATOR, MSRV Interaction Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage? Yes
10. Based on the above seismic interaction evaluations, is equipment free of Yes potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments:

Seismic Walkdown Team J. Sanchez & J. Griffith - 2/12/2013 Evaluated by: Jorge Sanchez Date: 2/12/2013 James Griffith YOH.2/12/2013

=

AC-4

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 4 Status: Y-I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21-A0O4C Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

ACCUMULATOR, MSRV Photos AC-5

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 4 Status: [Y N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21-AO04C Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

ACCUMULATOR, MSRV Photos AC-6

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 3 Status: [-1 N U Seismic Walkdown Checklist (SWC)

EquipmentID No.: 2B21-F013C Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

C MS LINE SAFETY/RELIEF VLV Project: La Salle 2 SWEL Location (Bldg, Elev, Room/Area): DW, 777.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% No of SWEL items requiring such verification)?
2. 2.. hardware?

Is the anchorage free of bent, broken, missing or loose / .k Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface oxidation? Not Applicable
4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable
5. Is the anchorage configuration consistent with plant documentation? (Note: Not Applicable This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
6. Based on the above anchorage evaluations, is the anchorage free of Yes potentially adverse seismic conditions?

AC-7

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 3 Status: EZI N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21-F013C Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

C MS LINE SAFETY/RELIEF VLV Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage? Yes
10. Based on the above seismic interaction evaluations, is equipment free of Yes potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team J. Sanchez & J. Griffith - 211212013 Evaluated by: Jorge Sanchez 2/12/2013 James Griffith 2/1212013 AC-8

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 3 Status: [I-ý N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2821-FO13C Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

C MS LINE SAFETY/RELIEF VLV Photos AC-9

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 3 Status: Y N U Seismic Walkdown Checklist (SWC)

EquipmentID No.: 2B21-F013C-A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Eauipment

Description:

SRV C IMF-2 SOLENOID VALVE A Project: La Salle 2 SWEL Location (Bldg, Elev, Room/Area): DW, 783.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% No of SWEL items requiring such verification)?
2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable
3. Is the anchorage free of corrosion that is more than mild surface oxidation? Not Applicable
4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable
5. Is the anchorage configuration consistent with plant documentation? (Note: Not Applicable This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
6. Based on the above anchorage evaluations, is the anchorage free of Yes potentially adverse seismic conditions?

AC-10

LaSalle County Generating Station Unit 2 Correspondence No-: RS-13-097 Sheet 2 of 3 Status: [Fj] N U Seismic Walkdown Checklist (SWC)

EquipmentID No.: 2B21-FO13C-A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves EauiDment

Description:

SRV C IMF-2 SOLENOID VALVE 'A' Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage? Yes
10. Based on the above seismic interaction evaluations, is equipment free of Yes potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team J. Sanchez & J. Griffith - 2112/2013 Evaluated by: Jorge Sanchez . Date: 2/12/2013 James Griffith 72/12/2013 AC-11

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 3 Status: [l] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21-F013C-A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SRV C IMF-2 SOLENOID VALVE 'A' Photos AC-12

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 3 Status: F[ N U Seismic Walkdown Checklist (SWC)

EquipmentlD No.: 2B21-F022C Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

C MS INBD ISOL VLV Project: La Salle 2 SWEL Location (Bldg, Elev, Room/Area): DW, 735.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findinas. Additional space is provided at the end of this checklist for documentinq other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% No of SWEL items requiring such verification)?
2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable
3. Is the anchorage free of corrosion that is more than mild surface oxidation? Not Applicable
4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable
5. Is the anchorage configuration consistent with plant documentation? (Note: Not Applicable This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
6. Based on the above anchorage evaluations, is the anchorage free of Yes potentially adverse seismic conditions?

AC-13

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 3 Status: F] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21 -F022C Equipment Class: (7) Fluid-Operated Valves Euuipment DescriDtion: C MS INBD ISOL VLV Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage? Yes
10. Based on the above seismic interaction evaluations, is equipment free of Yes potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team J. Sanchez & J. Griffith - 2/12/2013 Evaluated by: Jorge Sanchez - Date: 2/12/2013 James Griffith /2/12/2013

/--

AC-14

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 3 Status: [ZI N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21-F022C Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

C MS INBD ISOL VLV Photos AC-15

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 4 Status: [Y- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21-F028C Equipment Class: (7) Fluid-Operated Valves EauiDment

Description:

C MS OTBD ISOL VLV Project: La Salle 2 SWEL Location (Bldg, Elev, Room/Area): RB, 735.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% No of SWEL items requiring such verification)?
2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable
3. Is the anchorage free of corrosion that Is more than mild surface oxidation? Not Applicable
4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable
5. Is the anchorage configuration consistent with plant documentation? (Note: Not Applicable This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
6. Based on the above anchorage evaluations, is the anchorage free of Yes potentially adverse seismic conditions?

AC-16

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 4 Status: F[J N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21-F028C Equipment Class: (7) Fluid-Operated Valves Eauipment

Description:

C MS OTBD ISOL VLV Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage? Yes
10. Based on the above seismic interaction evaluations, is equipment free of Yes potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team J. Sanchez & J. Griffith - 2/13/2013 Evaluated by: Jorge Sanchez Date: 2/1,3/2013 James Griffith _2/13/2013 AC-17

LaSalle County Generating Station Unit 2 Correspondence No.: RS- 13-097 Sheet 3 of 4 Status: I-I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21 -F028C Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

C MS OTBD ISOL VLV Photos I

AC-18

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 4 Status: EZII N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B321-F028C Equipment Class: (7) Fluid-Operated Valves Eauioment Desonotion: C MS OTBD ISOL VLV Photos AC-19

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

EquipmentlD No.: 2B21-F028C-P2 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

VALVE, SOLENOID, O/B MSIV Project: La Salle 2 SWEL Location (Bldg, Elev, Room/Area): Outboard MSIV Room, 735.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findinqs. Additional space is provided at the end of this checklist for documentinq other comments.

Anchoraqe

1. Is anchorage configuration verification required (i.e., is the item one of the 50% No of SWEL items requiring such verification)?
2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable
3. Is the anchorage free of corrosion that is more than mild surface oxidation? Not Applicable
4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable
5. Is the anchorage configuration consistent with plant documentation? (Note: Not Applicable This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
6. Based on the above anchorage evaluations, is the anchorage free of Yes potentially adverse seismic conditions?

AC-20

LaSafle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 4 Status: T N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21-F028C-P2 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

VALVE, SOLENOID, O/B MSIV Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage? Yes
10. Based on the above seismic interaction evaluations, is equipment free of Yes potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team J. Sanchez & J. Griffith - 2/13/2013 Evaluated by: Jorge Sanchez Date: 2/13/2013 James Griffith j2/13/2013 AC-21

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 4 Status: [Z] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21 -F028C-P2 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

VALVE, SOLENOID, O/B MSIV Photos AC-22

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 4 Status: [Ii] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21 -F028C-P2 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

VALVE, SOLENOID, O/B MSIV Phb~ots AC-23

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 4 Status: [] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21-F067C Equipment Class: (8) Motor-Operated and Solenold-Operated Valves Equipment

Description:

C MS OTBD ISOL ABOVE SEAT DRN VLV Project: La Salle 2 SWEL Location (Bldg, Elev, Room/Area): RB, 735.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% No of SWEL items requiring such verification)?
2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable
3. Is the anchorage free of corrosion that is more than mild surface oxidation? Not Applicable
4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable
5. Is the anchorage configuration consistent with plant documentation? (Note: Not Applicable This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
6. Based on the above anchorage evaluations, is the anchorage free of Yes potentially adverse seismic conditions?

AC-24

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 4 Status: F N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21-F067C Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Eauilment

Description:

C MS OTBD ISOL ABOVE SEAT DRN VLV Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage? Yes
10. Based on the above seismic interaction evaluations, is equipment free of Yes potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team J. Sanchez & J. Griffith - 2/13/2013 Evaluated by: Jorge Sanchez Date: 2/13/2013 James Griffith 2/13/2013 AC-25

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 4 Status: [F- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21 -F067C Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment Descrption: C MS OTBD ISOL ABOVE SEAT DRN VLV Photos AC-26

LaSalle County Generating Station Unit 2 Correspondence No.: RS-1 3-097 Sheet 4 of 4 Status: r-W N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2B21-F067C Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

C MS OTBD ISOL ABOVE SEAT DRN VLV Photos AC-27

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 4 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP21E (SEE APPENDIX C PAGE C-38)

Equipment Class: (02) Low Voltage Switchgear and Breaker Panels Equipment

Description:

DIV II 480V SWGR 236X Project: LaSalle 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary Bldg, 731.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchoraqe

1. Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?
5. Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

SEE SWC IN APPENDIX C FOR RESPONSES Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures?
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?
10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

SEE SWC IN APPENDIX C FOR RESPONSES AC-28

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 4 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP21E (SEE APPENDIX C PAGE C-38)

Equipment Class: (02) Low Voltage Switchgear and Breaker Panels Equipment

Description:

DIV II 480V SWGR 236X Other Adverse Conditions (SUPPLEMENTAL CABINET INSPECTION)

11. Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?
a. Internalcomponents secured? (i.e. no loose or missing fasteners) NNU
b. Are adjacent cabinets secured together? NNU
c. No other adverseseismic conditions? NNU Comments Evaluated by: Jorge Sanchez Date: 02/21/2013 Aram Zare L * - 02/21/2013 Photos AC-29

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 4 Status: [ N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP21 E (SEE APPENDIX C PAGE C-38)

Equipment Class: (02) Low Voltage Switchgear and Breaker Panels Equipment

Description:

DIV II 480V SWGR 236X Is La Salle Unit 2, 2121/13, IMG_0138 La biaiie unit z, w/z11S, IMimu1ui AC-30

LaSalle County Generabng Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 4 Status: [ N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP21 E (SEE APPENDIX C PAGE C-38)

Equipment Class: (02) Low Voltage Switchgear and Breaker Panels Equipment

Description:

DIV II 480V SWGR 236X I

ji La Salle Unit 2, 2/21/13, IMG01 0140 AC-31

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP21E-303B (SEE APPENDIX C PAGE C-44)

Equipment Class: (04) Transformers Equipment

Description:

TRANSFORMER, 236X Project: LaSalle 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary Bldg, 731.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchora-ge

1. Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?
5. Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

SEE SWC IN APPENDIX C FOR RESPONSES Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures?
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?
10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

SEE SWC IN APPENDIX C FOR RESPONSES AC-32

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 3 Status: r] N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP21E-303B (SEE APPENDIX C PAGE C-44)

Equipment Class: (04) Transformers Equipment

Description:

TRANSFORMER, 236X Other Adverse Conditions (SUPPLEMENTAL CABINET INSPECTION)

11. Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?
a. Internal components secured? (i.e. no loose or missing fasteners)
  • N U
b. Are adjacent cabinets secured together? Y N
c. No other adverseseismic conditions? N U Comments Evaluated by: Jorge Sanchez Date: 02/21/2013 Aram Zare 02/21/2013 VP-Photos AC-33

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 3 Status: [ N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP21 E-303B (SEE APPENDIX C PAGE C-44)

Equipment Class: (04) Transformers Equipment

Description:

TRANSFORMER, 236X La Salle Unit 2, 2/21/13, IMG_0137 AC-34

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 4 Status: FYj N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP78E (SEE APPENDIX C PAGE C-55)

Equipment Class: (01) Motor Control Centers Equipment

Description:

DIV II 480V MCC 236X-1 Project: LaSalle 2 SWEL Location (Bldg, Elev, Room/Area): Reactor Bldg, 820.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchora-qe

1. Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?
5. Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

SEE SWC IN APPENDIX C FOR RESPONSES Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures?
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?
10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

SEE SWC IN APPENDIX C FOR RESPONSES AC-35

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 4 Status: Y] N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP78E (SEE APPENDIX C PAGE C-55)

Equipment Class: (01) Motor Control Centers Equipment

Description:

DIV II 480V MCC 236X-1 Other Adverse Conditions (SUPPLEMENTAL CABINET INSPECTION)

11. Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?
a. Internal components secured? (i.e. no loose or missing fasteners) r N U
b. Are adjacentcabinets secured together? N U
c. No other adverse seismic conditions? N U Comments Evaluated by: Jorge Sanchez Date: 02/21/2013 Aram Zare 02/21/2013 Photos AC-36

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 4 Status: [II] N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP78E (SEE APPENDIX C PAGE C-55)

Equipment Class: (01) Motor Control Centers Equipment

Description:

DIV II 480V MCC 236X-1 La ziatie unit z, ziz1/1i , imGu1u4b La zsaie unit L,, 212111S, ilvutiU14t La Salle Unit 2, 2/21/13, IMG_01 47 La Salle Unit 2, 2/21/13, IMG_0148 AC-37

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 4 Status: [ N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP78E (SEE APPENDIX C PAGE C-55)

Equipment Class: (01) Motor Control Centers Equipment Descrptioon: DIV II 480V MCC 236X-1 Lac-aiie unit z, z//111, imujJ14to La baiie unit z, zlziii jS, iiMuiJ ou AC-38

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet I of 3 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP81E (SEE APPENDIX C PAGE C-59)

Equipment Class: (01) Motor Control Centers Equipment

Description:

DIV II 480V MCC 236X-3 Project: LaSalle 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary Bldg, 731.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchoraae

1. Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?
5. Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

.SEESWC IN APPENDIX C FOR RESPONSES Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures?
8. Are overhead equipment, distribution systems, ceiling files and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?
10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

SEE SWC IN APPENDIX C FOR RESPONSES AC-39

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP81E (SEE APPENDIX C PAGE C-59)

Equipment Class: (01) Motor Control Centers Equipment

Description:

DIV II 480V MCC 236X-3 Other Adverse Conditions (SUPPLEMENTAL CABINET INSPECTION)

11. Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?
a. Internal components secured? (i.e. no loose or missing fasteners)
  • N U
b. Are adjacentcabinets secured together? N U
c. No other adverse seismic conditions? N U Comments Evaluated by: Jorge Sanchez x)* Ddto Date: 02/21/2013 Aram Zare 02/21/2013 Photos AC-40

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 3 Status: [ N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2AP81 E (SEE APPENDIX C PAGE C-59)

Equipment Class: (01) Motor Control Centers Equipment

Description:

DIV II 480V MCC 236X-3 La Salle Unit 2, 2/21/13, IMG_0141 La Salle Unit 2, 2/21/13, IMG_0142 La Salle Unit 2, 2/21/13, IMG-0143 AC-41

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 6 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC02E (SEE APPENDIX C PAGE C-123)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV I 250 VDC DISTRIBUTION BUS 2 Project: LaSalle 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary Bldg, 710.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchoraae

1. Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?
5. Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

SEE SWC IN APPENDIX C FOR RESPONSES Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures?
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?
10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

SEE SWC IN APPENDIX C FOR RESPONSES AC-42

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 6 Status: j--Y] N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC02E (SEE APPENDIX C PAGE C-123)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV 1250 VDC DISTRIBUTION BUS 2 Other Adverse Conditions (SUPPLEMENTAL CABINET INSPECTION)

11. Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?,
a. Internal components secured? (i.e. no loose or missing fasteners) M NU
b. Are adjacentcabinets secured together? N U
c. No other adverseseismic conditions? N U Comments Evaluated by: Jorge Sanchez _ Date: 02/15/2013 Aram Zare 4 , 02/15/2013 Photos AC-43

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 6 Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC02E (SEE APPENDIX C PAGE C-123)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV 1250 VDC DISTRIBUTION BUS 2 La sanle Unit 2, 2115113, UbcN01 75 La Salle Unit 2, 2/15/13, DSCN0176 AC-44

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 6 Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC02E (SEE APPENDIX C PAGE C-123)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV 1250 VDC DISTRIBUTION BUS 2 La tiaiie unit z, W1 */I J, LAZA;NU1 If La Salle Unit 2, 2/15/13, DSCN0179 AC-45

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 5 of 6 Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC02E (SEE APPENDIX C PAGE C-123)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV 1250 VDC DISTRIBUTION BUS 2 La Salle Unit 2, 2/15/13, DSCN0181 AC-46

LaSalle County Generating Station Unit 2 Correspondence No.: RS-1 3-097 Sheet 6 of 6 Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC02E (SEE APPENDIX C PAGE C-123)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV 1250 VDC DISTRIBUTION BUS 2 La Salle Unit 2, 2115/13, DSCNO183 La Salle Unit 2, 2/15/13, DSCN0184 La Salle Unit 2, 2/15/13, DSCN0185 AC-47

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet I of 5 Status: FY] N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC03E (SEE APPENDIX C PAGE C-125)

Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

250 VDC BATTERY CHARGER Project: LaSalle 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary Bldg, 710.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?
5. Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

SEE SWC IN APPENDIX C FOR RESPONSES Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures?
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?
10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

SEE SWC IN APPENDIX C FOR RESPONSES AC-48

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 5 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC03E (SEE APPENDIX C PAGE C-125)

Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

250 VDC BATTERY CHARGER Other Adverse Conditions (SUPPLEMENTAL CABINET INSPECTION)

11. Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?
a. Internal components secured?(i.e. no loose or missing fasteners)
  • N U
b. Are adjacentcabinets secured together? Y NU
c. No other adverse seismic conditions? N U Comments Evaluated by: Jorge Sanchez . - Date: 02/14/2013 Aram Zare 02/14/2013 Photos AC-49

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 5 Status:

  • N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC03E (SEE APPENDIX C PAGE C-125)

Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

250 VDC BATTERY CHARGER La Salle Unit 2, 2/14/13, DSCN0156 La Salle Unit 2, 2/14/13, DSCN0157 La Salle Unit 2, 2/14/13, DSCN01 59 AC-50

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 5 Status: [ ] N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC03E (SEE APPENDIX C PAGE C-125)

Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

250 VDC BATTERY CHARGER La balie Unit 2, 2/14/13, UIS(;NO1 60 La Salle Unit 2, 2(14/13, DSCN0161 AC-51

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 5 of 5 Status: [ N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC03E (SEE APPENDIX C PAGE C-125)

Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

250 VDC BATTERY CHARGER La Salle Unit 2, 2/14/13, DSCN0162 CA-U La z~aiie unit z, Z1 4/13/45, UbLA'JUl W La ,alle Unit 2, 2/14/13, DSCN0164 AC-52

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 4 Status: Y-] N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC05E (SEE APPENDIX C PAGE C-130)

Equipment Class: (01) Motor Control Centers Equipment

Description:

250VDC MCC 221X Project: LaSalle 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary Bldg, 710.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?
5. Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

SEE SWC IN APPENDIX C FOR RESPONSES Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures?
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?
10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

SEE SWC IN APPENDIX C FOR RESPONSES AC-53

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 4 Status: [-] N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC05E (SEE APPENDIX C PAGE C-130)

Equipment Class: (01) Motor Control Centers Equipment

Description:

250VDC MCC 221X Other Adverse Conditions (SUPPLEMENTAL CABINET INSPECTION)

11. Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?
a. Internalcomponents secured? (i.e. no loose or missing fasteners)
  • N U
b. Are adjacent cabinets secured together? Y N
c. No other adverseseismic conditions? NU Comments Evaluated by: Jorge Sanchez Date: 02/21/2013 Aram Zare v 02/21/2013 Photos AC-54

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 4 Status: [M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC05E (SEE APPENDIX C PAGE C-130)

Equipment Class: (01) Motor Control Centers Equipment

Description:

250VDC MCC 221 X La Salle Unit 2, 2/21/13, DSCNO133 La Salle Unit 2, 2/21/13, DSCN01 32 AC-55

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 4 Status: r'* N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC05E (SEE APPENDIX C PAGE C-130)

Equipment Class: (01) Motor Control Centers Equipment

Description:

25OVDC MCC 221 X La Salle Unit 2, 2/21/13, DSCNO134 La Salle Unit 2, 2121/13. DSCN0134 AC-56

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 5 Status: jjYj N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC13E (SEE APPENDIX C PAGE C-138)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV II 125VDC DISTRIBUTION PANEL 212Y Project: LaSalle 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary Bldg, 731.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?
5. Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

SEE SWC IN APPENDIX C FOR RESPONSES Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures?
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?
10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

SEE SWC IN APPENDIX C FOR RESPONSES AC-57

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 5 Status: F-j N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC13E (SEE APPENDIX C PAGE C-138)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV II 125VDC DISTRIBUTION PANEL 212Y Other Adverse Conditions (SUPPLEMENTAL CABINET INSPECTION)

11. Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?
a. Internal components secured? (i.e. no loose or missing fasteners)
  • N U
b. Are adjacentcabinets secured together? N U
c. No otheradverse seismic conditions? N U Comments Evaluated by: Jorge Sanchez Date: 02/21/2013 Aram Zare 02/21/2013 Photos AC-58

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 5 Status: r N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC13E (SEE APPENDIX C PAGE C-138)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV II 125VDC DISTRIBUTION PANEL 212Y La Salle Unit 2, 2/21/13, IMG-0122 La Salle Unit 2, 2/21/13, IMG-0124 AC-59

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 5 Status: N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC13E (SEE APPENDIX C PAGE C-138)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV II 125VDC DISTRIBUTION PANEL 212Y

~,Q La ,alle Unit 2, 2/21113, IMU-0126 AC-60

LaSalle County Generating Station Unit 2 Correspondence No.: RS-1 3-097 Sheet 5 of 5 Status: [-Y] N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC13E (SEE APPENDIX C PAGE C-138)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV 11125VDC DISTRIBUTION PANEL 212Y La Salle Unit 2, 2J21/13, IMG-0129 Lazjaiie unit z, zizi/ii, imUi-ui3i AC-61

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 5 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC15E (SEE APPENDIX C PAGE C-146)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV I1125VDC DISTRIBUTION BUS 2B Project: LaSalle 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary Bldg, 731.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?
5. Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

SEE SWC IN APPENDIX C FOR RESPONSES Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures?
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?
10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

SEE SWC IN APPENDIX C FOR RESPONSES AC-62

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 5 Status: [] N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC15E (SEE APPENDIX C PAGE C-146)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV II 125VDC DISTRIBUTION BUS 2B Other Adverse Conditions (SUPPLEMENTAL CABINET INSPECTION)

11. Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?
a. Internal components secured? (i.e. no loose or missing fasteners)
  • N U
b. Are adjacent cabinets secured together? N U
c. No other adverse seismic conditions? NU Comments Evaluated by: Jorge Sanchez - Date: 02/21/2013 Aram Zare _ v , 02/21/2013 Photos AC-63

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 5 Status: r N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC15E (SEE APPENDIX C PAGE C-146)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV II 125VDC DISTRIBUTION BUS 2B La Salle Unit 2, 2/21/13, IMG-0122 La Salle Unit 2, 2/21/13, IMG-0124 AC-64

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 5 Status: [ N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC15E (SEE APPENDIX C PAGE C-146)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV II 125VDC DISTRIBUTION BUS 2B La zSalle Unit 2, 2/21/13, IMi-0126 AC-65

LaSalle County Generating Station Unit 2 Correspondence No,: RS-13-097 Sheet 5 of 5 Status: [-] N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC15E (SEE APPENDIX C PAGE C-146)

Equipment Class: (14) Distribution Panels and Automatic Transfer Switches Equipment

Description:

DIV II 125VDC DISTRIBUTION BUS 2B La Salle Unit 2, 2121/13, IMG-0129 La Salle Unit 2, 2/21/13, IMG-0131 AC-66

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 4 Status: 11111 N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC16E (SEE APPENDIX C PAGE C-152)

Equipment Class: (16) Battery Chargers & Inverters Equipment

Description:

DIV I1125VDC BATTERY CHARGER 2BB Project: LaSalle 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary Bldg, 731.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?
5. Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

SEE SWC IN APPENDIX C FOR RESPONSES Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures?
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?
10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

SEE SWC IN APPENDIX C FOR RESPONSES AC-67

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 4 Status: r-Y N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC16E (SEE APPENDIX C PAGE C-152)

Equipment Class: (16) Battery Chargers & Inverters Equipment

Description:

DIV II 125VDC BATTERY CHARGER 2BB Other Adverse Conditions (SUPPLEMENTAL CABINET INSPECTION)

11. Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?
a. Internalcomponents secured? (i.e. no loose or missing fasteners)
  • NU
b. Are adjacent cabinets secured together? Y N
c. No other adverse seismic conditions? NU Comments Evaluated by: Jorge Sanchez Date: 02/21/2013 Aram Zare - , 02/21/2013 Photos AC-68

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 4 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC16E (SEE APPENDIX C PAGE C-152)

Equipment Class: (16) Battery Chargers & Inverters Equipment

Description:

DIV II 125VDC BATTERY CHARGER 2BB La Salle Unit 2, 2/21/13, IMG-0119 La Salle Unit 2, 2/21/13, IMG-0120 AC-69

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 4 Status: [] N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2DC16E (SEE APPENDIX C PAGE C-152)

Equipment Class: (16) Battery Chargers & Inverters Equipment

Description:

DIV II 125VDC BATTERY CHARGER 2BB La Salle Unit 2, 2121/13, IMG-0121 AC-70

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet I of 3 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2PL33J (SEE APPENDIX C PAGE C-408)

Equipment Class: (20) Instrument and Control Panels Equipment

Description:

ASSY - PANEL, RHR B/C CUBE VENT Project: LaSalle 2 SWEL Location (Bldg, Elev, Room/Area): Reactor Bldg, 687.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?
5. Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

SEE SWC IN APPENDIX C FOR RESPONSES Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures?
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?
10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

SEE SWC IN APPENDIX C FOR RESPONSES AC-71

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 3 Status: Y] N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2PL33J (SEE APPENDIX C PAGE C-408)

Equipment Class: (20) Instrument and Control Panels Equipment

Description:

ASSY - PANEL, RHR B/C CUBE VENT Other Adverse Conditions (SUPPLEMENTAL CABINET INSPECTION)

11. Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?
a. Internal components secured? (i.e. no loose or missing fasteners)
  • N U
b. Are adjacentcabinets securedtogether? Y N
c. No other adverse seismic conditions? N U Comments Evaluated by: Jorge Sanchez Date: 02/22/2013 Aram Zare 02/22/2013 Photos AC-72

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 3 Status: N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2PL33J (SEE APPENDIX C PAGE C-408)

Equipment Class: (20) Instrument and Control Panels Equipment

Description:

ASSY - PANEL, RHR B/C CUBE VENT IZ 31wow 30 La -jaiie unnue, L-"l i iivi-ui o La -;aiie unit ~,~iMvu-uib~i La -janie unit z, ;-ezztij, llmu-uibb AC-73

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2PL34J (SEE APPENDIX C PAGE C-412)

Equipment Class: (20) Instrument and Control Panels Equipment

Description:

ASSY - PANEL, RHR A CUBE VENT Project: LaSalle 2 SWEL Location (Bldg, Elev, Room/Area): Reactor Bldg, 694.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?
5. Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

SEE SWC IN APPENDIX C FOR RESPONSES Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures?
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?
10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

SEE SWC IN APPENDIX C FOR RESPONSES AC-74

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 3 Status: [M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2PL34J (SEE APPENDIX C PAGE C-412)

Equipment Class: (20) Instrument and Control Panels Equipment

Description:

ASSY - PANEL, RHR A CUBE VENT Other Adverse Conditions (SUPPLEMENTAL CABINET INSPECTION)

11. Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?
a. Internal components secured? (i.e. no loose or missing fasteners)
  • N U
b. Are adjacent cabinets secured together? Y N
c. No other adverse seismic conditions? N U Comments Evaluated by: Jorge Sanchez Date: 2/15/2013 Aram Zare ( / 2/15/2013 Photos AC-75

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 3 Status: Ei N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2PL34J (SEE APPENDIX C PAGE C-412)

Equipment Class: (20) Instrument and Control Panels Equipment

Description:

ASSY - PANEL, RHR A CUBE VENT La Salle Unit 2, 2/15/13, DSCN0187 La Salle Unit 2, 2/15/13, DSCN0189 La 6iaiie unit z, 21 /1W13, U,'SLNUI 90 La Salle Unit 2, 2/15/13, DGSN0191 AC-76

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 5 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2PL35J (SEE APPENDIX C PAGE C-416)

Equipment Class: (20) Instrument and Control Panels Equipment

Description:

ASSY - PANEL, LPCS CUBE VENT Project: LaSalle 2 SWEL Location (Bldg, Elev, Room/Area): Reactor Bldg, 694.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space Is provided at the end of this checklist for documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?
5. Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

SEE SWC IN APPENDIX C FOR RESPONSES Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures?
8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?
10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

SEE SWC IN APPENDIX C FOR RESPONSES AC-77

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 5 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2PL35J (SEE APPENDIX C PAGE C-416)

Equipment Class: (20) Instrument and Control Panels Equipment

Description:

ASSY - PANEL, LPCS CUBE VENT Other Adverse Conditions (SUPPLEMENTAL CABINET INSPECTION)

11. Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?
a. Internalcomponents secured? (i.e. no loose or missing fasteners)
  • N U
b. Are adjacent cabinets secured together? Y N
c. No other adverse seismic conditions? N U Comments Evaluated by: Jorge Sanchez Date: 02/14/2013 Aram Zare 02/14/2013 Photos AC-78

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 5 Status: jj- N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2PL35J (SEE APPENDIX C PAGE C-416)

Equipment Class: (20) Instrument and Control Panels Equipment

Description:

ASSY - PANEL, LPCS CUBE VENT La Salle Unit 2, 2/14/13, DSCNO148 La Salle Unit 2, 2/14/13, DSCN0149 AC-79

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 5 Status: L N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2PL35J (SEE APPENDIX C PAGE C-416)

Equipment Class: (20) Instrument and Control Panels Equipment

Description:

ASSY - PANEL, LPCS CUBE VENT La Satle Unit 2, 2/14/13, DSCNO150 La Salle Unit 2, 2/14/13, DSCNO151 La Salle Unit 2, 2/14/13, DSCN0152 La Salle Unit 2, 2/14/13, DSCN0153 AC-80

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 5 of 5 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL CABINET INSPECTION Equipment ID No.: 2PL35J (SEE APPENDIX C PAGE C-416)

Equipment Class: (20) Instrument and Control Panels Equipment

Description:

ASSY - PANEL, LPCS CUBE VENT La Salle Unit 2, 2/14/13, DSCN0154 AC-81

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 AD Area Walk-By Checklists (AWCs)

Table AD-1 provides the building, elevation, and location of each area as well as a list of walkdown items associated with each area, and page numbers of each Area Walk-By Checklist.

Table AD-I. Summary of Area Walk-By Checklists AWC-U2-x BUILDING ELEVATION LOCATION COMPONENT PAGE NO.

2B21-A004C 5-1 Reactor 777 Drywell 2B21-F013C AD-2 2B21-FO13C-A 5-2 Reactor 735 Drywell 2B21-F022C AD-6 2B21-F028C Outboard 5-3 Reactor 735 Outboom 2B21-F028C-P2 AD-9 MSIV Room 2B321-F067C AD-1

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 4 Status: F N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area Walk-by 5-1 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.

1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?
2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,

condition of supports is adequate and fill conditions of cable trays appears to be inside acceptable limits)?

4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?
6. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?
7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations(e.g., scaffolding, lead shielding)?

AD-2

LaSalle County Generating Station Unit 2 Correspondence No.: RS-1 3-097 Sheet 2 of 4 Status: [-M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area Walk-by 5-1

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?

Comments Seismic Walkdown Team J. Sanchez & J. Griffith - 2/12J2013 Evaluated by: Jorge Sanchez // A5 Date: 2/12/2013 James Griffith 2/12J2013 Photos La Salle Unit 2, 2112/13, DCN0109 La Salle Unit 2, 2/12/1 3, DCNO0 10 AD-3

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 4 Status: [jY] N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area Walk-by 5-1 La Salle Unit 2, 2/12/13, DCN01 11 La Salle Unit 2, 2/12/13, DCN01 13 AD-4

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 4 Status: [ N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area Walk-by 5-1 La Salle Unit 2, 2/12/13, MIN0114 La 5aie Unit 2, 2/12/113, U(;N0 15 AD-5

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 3 Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area Walk-by 5-2 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.

1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?
2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,

condition of supports is adequate and fill conditions of cable trays appears to be inside acceptable limits)?

4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?
6. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?
7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations(e.g., scaffolding, lead shielding)?

AD-6

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 3 Status: [fj N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area Walk-by 5-2

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?

Comments Seismic Walkdown Team J. Sanchez & J. Griffith - 2112/2013 Evaluated by: Jorge Sanchez I Date: 2/12/2013 James Griffith / 2/12/2013 Photos La Salle Unit 2, 2/12/13, DCN01 18 AD-7

LaSalle County Generating Station Unit 2 Correspondence No.: RS-1 3-097 Sheet 3 of 3 Status: [-Y N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area Walk-by 5-2 La banie unlitz, 2112/l13, ULUNU1 19 La baiie unit z, Z11 ZrI , U1.;NUI ZU AD-8

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 1 of 4 Status: [YI N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area Walk-by 5-3 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.

1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?
2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,

condition of supports is adequate and fill conditions of cable trays appears to be inside acceptable limits)?

4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?
6. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?
7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations(e.g., scaffolding, lead shielding)?

AD-9

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 2 of 4 Status: [r] N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area Walk-by 5-3

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?

Comments Seismic Walkdown Team J. Sanchez & J. Griffith - 2/1212013 Evaluated by: Jorge Sanchez Date: 2/12/2013 James Griffith 2/12/2013 Photos La Salle Unit 2, 2/12/13, IMG_1612 La Salle Unit 2, 2/12/13, IMG-1613 AD-10

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 3 of 4 Status: [j] N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area Walk-by 5-3 La Salle Unit 2, 2/12/13, IMG_1615 La Salle Unit 2, 2/12/13, IMG_1618 AD-11

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Sheet 4 of 4 Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area Walk-by 5-3 La Salle Unit 2, 2/12/13, IMG_1621 La Salle Unit 2, 2/12/13, 1MG_1626 AD-12

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 AE Plan for Future Seismic Walkdown of Inaccessible Equipment All inaccessible deferred item inspections and associated area walk-bys have been completed and documented in Appendices AC and AD of this Annex A.

Per Section 5.4 of Enclosure 2 of Exelon letter to the NRC (RS-12-163), supplemental internal inspections of certain cabinets are required due to clarification provided by the NRC after the online seismic walkdowns were completed. Table AE-2 lists the remaining electrical cabinets that require a supplemental internal inspection.

Table AE-2. Supplemental Cabinet Internal Inspection List ACCES IF NOTTRACKING COMPONENT EQUIPMENT ACCESS MILESTONE TRACIN ID CLASS (Y/N) IBLE, COMPLETION NUMBER)

WHY?

L2R15 DIV I 480V (01) Motor Refueling IR 01425162 2AP71E MCC 235X-1 Control Centers YES N/A Outage W/O 414283 L2R15 DIV I 480V (01) Motor Refueling IR 01425162 2AP73E MCC 235X-3 Control Centers YES N/A Outage W/O 414283 (02) Low Voltage L2R15 480V SWGR Switchgear and Refueling IR 01425162 2AP15E 233 Breaker Panels YES N/A Outage W/O 414283 (02) Low Voltage L2R15 DIV I 480V Switchgear and Refueling IR 01425162 2AP19E SWGR 235X Breaker Panels YES N/A Outage W/O 414283 1L2R15 TRANSFORM (04) Refueling IR 01425162 2AP19E-103B ER, 235X Transformers YES N/A Outage W/O 414283 AE-1

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 AF Peer Review Report This appendix includes the Peer Review Team's report on the follow-on seismic Walkdowns and Walk-Bys.

AF-1

LaSafte County Generatng Station Unit 2 Correspondence No: RS-13-097 Peer Review Report for Near Term Task Force (NTTF) Recommendation 2.3 Seismic Walkdown Inspection of LaSalle County Generating Station Unit 2 Annex A May 10, 2013 Prepared by Peer Reviewers Gre-gory Eng-els (Team Leader)

Jeffrey Snyder Gregory Engels I itder ,erti.ation Signature Peer Review Team Le bate AF-2

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 I Introduction 1.1 OVERVIEW This report documents the independent peer review for the Near Term Task Force (NTTF) Recommendation 2.3: Seismic Walkdowns, Annex A follow-on activities performed by Exelon LaSalle Engineering Department for Unit 2 of the LaSalle County Generating Station (LCGS). This peer review process includes the following activities:

Review the checklists of the items completed during the follow-on Seismic Walkdowns and Area walk-Bys.

Review the licensing basis evaluations.

Review the decisions for entering the adverse seismic conditions identified during the follow-on walkdowns into the plant's Corrective Action Program (CAP).

Review the final submittal report (Annex A).

Summarize the results of the peer review process in the final submittal report.

The peer review does not include the review of the selection of the structures, systems, and components (SSCs) included in this follow-on walkdown as they were included in the initial report and had been reviewed under the peer review of that report.

1.2 PEER REVIEWERS The peer reviewers for LCGS Unit 2 are Messrs. Gregory Engels and Jeffrey Snyder, both of LaSalle County Generating Station. Mr. Engels is designated the Peer Review Team Leader. None of the aforementioned engineers were involved in the follow-on seismic walkdown inspection process, and so that they can maintain their independence from the project. The peer reviewer qualifications are included in Appendix AA of Annex A.

The peer review of the follow-on seismic walkdown inspection started on May 6, 2013.

The peer review discussions on the follow-on activities are documented herein.

No issues were identified which challenged the current licensing basis.

1.3 SWEL DEVELOPMENT No new equipment was added to the SWEL presented in the initial report.

AF-3

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 1.4 SEISMIC WALKDOWN INSPECTION The peer review of the follow-on seismic walkdown inspection started on May 6, 2013.

The peer review discussions on the follow-on activities are documented in Section 3.

AF-4

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 2Peer Review - Selection of SSCs 2.1 PURPOSE The purpose of this section is to describe the process to perform the peer review of the selected structures, systems, and components, (SSCs) that were included in the Seismic Walkdown Equipment List (SWEL) for LaSalle County Generating Station - Unit 2.

However, this peer review is performed for SSC's that were previously inaccessible and were completed during the follow-on Seismic Walkdowns and Area Walk-bys. There are no changes to the SWEL, so the selection of new SSCs does not apply in this case.

AF-5

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 3

Review of Seismic Walkdown & Area Walk-By Checklists 3.1 OVERVIEW A peer review of the Annex A, including SWCs and AWCs completed for the follow-on items identified in Tables A3-1 and A3-2, was performed on May 8 and 9, 2013, after which an interview was conducted by Messrs. Engels and Snyder with the trained Seismic Walkdown Engineer (SWE) Mr. Jorge Sanchez, in accordance with the Seismic Walkdown Guidance requirements.

3.2 FOLLOW-ON SEISMIC WALKDOWN CHECKLISTS 100% of the equipment inspected during the follow-on walkdown are included in the peer review, see follow-on Seismic Walkdown, and Area-Walk-By Checklists presented below:

Table A3-1: Follow-on Seismic Walkdown Checklists Component ID Description Observations 2B21-AO04C ACCUMULATOR, MSRV No Concerns 2B21-FO13C C MS LINE SAFETY/RELIEF VLV No Concerns 2B21-F013C-A SRV C IMF-2 SOLENOID VALVE 'A' No Concerns 2B21-F022C C MS INBD ISOL VLV No Concerns 2B21-F028C C MS OTBD ISOL VLV No Concerns 2B21-F028C-P2 VALVE, SOLENOID, O/B MSIV No Concerns 2B21-F067C C MS OTBD ISOL ABOVE SEAT DRN VLV No Concerns AF-6

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 Table A3-2: Follow-on Seismic Walkdown Checklists for Supplemental Internal Inspections Component ID Description Observations 2AP21E DIV II480V SWGR 236X No Concerns 2AP21E-303B TRANSFORMER, 236X No Concerns 2AP78E DIV II 480V MCC 236X-1 No Concerns 2AP81E DIV II 480V MCC 236X-3 No Concerns 2DC02E DIV I 250 VDC DISTRIBUTION BUS 2 No Concerns 2DC03E 250VDC BATTERY CHARGER No Concerns 2DC05E 250VDC MCC 221X No Concerns 2DC13E DIV II 125VDC DISTRIBUTION PANEL 212Y No Concerns 2DC15E DIV II 125VDC DISTRIBUTION BUS 2B No Concerns 2DC16E DIV II 125VDC BATTERY CHARGER 2BB No Concerns 2PL33J ASSY - PANEL, RHR B/C CUBE VENT No Concerns 2PL34J ASSY - PANEL, RHR A CUBE VENT No Concerns 2PL35J ASSY - PANEL, LPCS CUBE VENT No Concerns Table A3-3: Follow-on Area Walk-By Checklists Area Area Description Components Within Area Observations 5-1 Drywell 22B21-AO04C, 2B21-F013C & 2B21-F013C-A No Concerns 5-2 Drywell 2B21-F022C No Concerns 5-3 Outboard MSIV 2B21-F028C, 2B21-F028C-P2 & 2B21-F067C No Concerns Room AF-7

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 3.2 EVALUATION OF FINDINGS There were no issues that challenged the licensing bases.

The outcome of the walkdowns indicated that there were no major concerns from the inspections conducted, and the peer reviewers consider the engineering judgments made by the inspectors as appropriate and acceptable, per the EPRI Seismic Walkdown Guidance.

Further, all the outstanding uncompleted corrective action issues in Report RS-12-163 have been addressed, as shown in Tables A5-2 and A5-3 of Annex A.

AF-8

LaSalle County Generating Station Unit 2 Correspondence No,: RS-13-097 4Review of Licensing Basis Assessments There were no issues that challenged the licensing basis for the follow-on items, so there were no assessments required. The peer reviewers concur with this outcome.

AF.9

LaSalle County Generating Station Unit 2 Correspondence No.: RS-13-097 5Review of Final Submittal Report and Sign-off The final submittal report has been reviewed by Messrs. Gregory Engels and Jeffrey Snyder per the requirements of EPRI Seismic Walkdown Guidance (2012 Technical Report 1025289), and found to be acceptable. The review comments have been duly addressed and appropriately incorporated in the Report.

AF-10