RS-12-161, Q0108.20-R-002, Rev. 1, Seismic Walkdown Checklist (Swc). Part 1 of 2

Q0108.20-R-002, Rev. 1, Seismic Walkdown Checklist (Swc). Part 1 of 2

ML12341A167
Person / Time
Site:	Byron
Issue date:	11/07/2012
From:	Stevenson & Associates
To:	Office of Nuclear Reactor Regulation, Exelon Generation Co
References
RS-12-161 12Q0108.20-R-002, Rev 1
Download: ML12341A167 (171)

Text

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CC01PA Equipment Class: (5) Horizontal Pumps Equipment

Description:

2A COMPONENT COOLING WTR PUMP ASMBLY Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 364.00 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% Yes 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? Yes

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

DrawingM-1220 Sheet 4 Revision V

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

C-89

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CC01PA Equipment Class: (5) Horizontal Pumps Equipment

Description:

2A COMPONENT COOLING WTR PUMP ASMBLY 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?

Masonry walls are seismic and would not collapse on 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?

Level glass is well-secured so there are no seismic/structuralissues 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 M. Delaney & P. Gazda 8/20/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-90

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: [-1 N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CC01PA Equipment Class: (5) Horizontal Pumps Equipment

Description:

2A COMPONENT COOLING WTR PUMP ASMBLY z~utuirt-A yron 1 at z jz-z 2CC01PA Byron 1 & 2 8-20-12 056 C-91

Byron Generating Station Unit 2 12Q0108:20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID'No.: 2CC9412A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

CC FROM RH HX 2A OUTLET ISOL ASMBLY Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 364.00 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?

C-92

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CC9412A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

CC FROM RH HX 2A OUTLET ISOL ASMBLY 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 M. Delaney & P. Gazda 8/20/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-93

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CC9412A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

CC FROM RH HX 2A OUTLET ISOL ASMBLY Photos C-94

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: E N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CV01PA Equipment Class: (5) Horizontal Pumps Equipment

Description:

PUMP,2A CENTRIFUGAL CHARGING ASMBLY Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 364.00 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% Yes 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? Yes

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Drawing M-1220 Sheet 2 Revision AB

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

C-95

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CV01PA Equipment Class: (5) Horizontal Pumps Equipment

Description:

'PUMP,2A CENTRIFUGAL CHARGING ASMBLY 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?

Masonry walls are seismic and would not collapse on 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 M. Delaney & P. Gazda 8/20/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-96

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CV01PA Equipment Class: (5) Horizontal Pumps Equipment

Description:

PUMP,2A CENTRIFUGAL CHARGING ASMBLY Photos C-97

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CV112E Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RWST TO CHG PMPS SUCT VLV C/S AT 2PM05J ASMBLY Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 364.00 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?

C-98

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: T] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CV112E Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RWST TO CHG PMPS SUCT VLV C/S AT 2PM05J ASMBLY 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 M. Delaney & P. Gazda 8/21/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-99

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CV1 12E Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RWST TO CHG PMPS SUCT VLV C/S AT 2PM05J ASMBLY Photos Photos C-100

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CV8105 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

CHG LINE CNMT ISOL VLV C/S AT 2PM05J ASMBLY Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 375.00 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?

C-101

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CV8105 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

CHG LINE CNMT ISOL VLV C/S AT 2PM05J ASMBLY 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?

No structural/seismicissues Comments Seismic Walkdown Team M. Delaney & P. Gazda 8/21/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-102

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CV8105 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

CHG LINE CNMT ISOL VLV C/S AT 2PMO5J ASMBLY Photos zLuvtiuo byron 1 & z ts-z1-iz uzi C-103

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: Mi N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CV8804A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RH HX 2A TO CV PMP SUCT ISOL VLV; C/S AT 2PM06J ASMBLY Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 364.00 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.

Anchoracqe

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?

C-104

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CV8804A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RH HX 2A TO CV PMP SUCT ISOL VLV; C/S AT 2PM06J ASMBLY 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?

No structural/seismic issues Comments Seismic Walkdown Team M. Delaney & P. Gazda 8/21/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-105

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2CV8804A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RH HX 2A TO CV PMP SUCT ISOL VLV; C/S AT 2PM06J ASMBLY Photos 2CV8804A Byron 1 & 2 8-21-12 012 C-106

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC02E Equipment Class: (15) Batteries on Racks Equipment

Description:

125V DC BATT 212 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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% Yes 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? Yes

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Drawing 6E-0-3391A Y Revision B

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

C-107

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC02E Equipment Class: (15) Batteries on Racks Equipment

Description:

125V DC BATT 212 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?

Chain hung lights appearto have closed S-hooks. IR 1399385 written since all S-hooks cannotbe seen from the floor and may be open. Lights would not impact equipment based on that they are double chained.

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 safetyfunctions of the equipment?

Comments Seismic walkdown team M. Delaney & P. Gazda 8/6/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-108

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC02E Equipment Class: (15) Batteries on Racks Equipment

Description:

125V DC BATT 212 Photos C-109

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 4 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC02E Equipment Class: (15) Batteries on Racks Equipment

Description:

125V DC BATT 212 C-110

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC03E Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

BATTERY CHARGER 211 DIV. 21 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 if, 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% Yes 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? Yes Adjacent small crack (northwest comer) - not a structural/seismicissue

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Drawing 6E-0-339 IC Revision BE

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

C-111

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC03E Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

BATTERY CHARGER 211 DIV. 21 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?

Nearby masonry wall is seismic and would not collapse on 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?

2DCO3E is not bolted to adjacentpanel 2DCO5E. Per Operations,no relays or other electrical components whose position could change during a seismic event are contained in either cabinet.

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 M. Delaney & P. Gazda 8/6/12 am, 8/8/12am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-112

Byron Generating Station Unit 2 12Q01 08.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC03E Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

BATTERY CHARGER 211 DIV. 21 Photos zuLuwt- tyron 1 z u014 C-1 13

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 4 Status: IN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC04E Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

BATTERY CHARGER 212 DIV. 22 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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.

Anchoracqe

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

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Drawing 6E-0-3391C Revision BE

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

C-114

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC04E Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

BATTERY CHARGER 212 DIV. 22 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?

Adjacent cabinet 2DCO6Eis not bolted to 2DCO4E however per Operations, no relays or other electricalcomponents whose position could change during a seismic ~v,.~nt *r* cnntin*.d in v.ith*.r c.*hin*tt 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 M. Delaney & P. Gazda 8/6/12 am, 8/8/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-115

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC04E Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

BATTERY CHARGER 212 DIV. 22 Photos C-116

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 4 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC04E Equipment Class: (16) Battery Chargers and Inverters EauiDment DescriDtion: BATTERY CHARGER 212 DIV. 22 C-117

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC05E Equipment Class: (15) Batteries on Racks Equipment

Description:

125V DC ESF DIST CENTER 211 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 452.00 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% Yes 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 Only mild corrosion - not a structural/seismicissue since anchorage configurationis maintained.

4. Is the anchorage free of visible cracks in the concrete near the anchors? Yes

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies ifthe item is one of the 50% for which an anchorage configuration verification is required.)

Drawing 6E-0-3391C Revision BE Weld exceeds drawing specified weld detail

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

C-118

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC05E Equipment Class: (15) Batteries on Racks Equipment

Description:

125V DC ESF DIST CENTER 211 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?

Adjacent cabinets 2DCO3Eand 2DCO5E do not appearto be bolted together however per Operations,no relays or other electricalcomponents whose position could change duringa seismic event are contained in either cabinet.

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 M. Delaney & P. Gazda 8/6/12 am, 8/8/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-119

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC05E Equipment Class: (15) Batteries on Racks Equipment

Description:

125V DC ESF DIST CENTER 211 Photos rn~

I 2DC05E Byron 1 & 2 011 C-120

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 4 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC05E Equipment Class: (15) Batteries on Racks Equipment

Description:

125V DC ESF DIST CENTER 211 C-121

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC06E Equipment Class: (15) Batteries on Racks Equipment

Description:

125V DC ESF DIST CENTER 212 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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% Yes 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? Yes

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Drawing 6E-0-3391C Revision BE Weld exceeds drawing requirements

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

C-122

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC06E Equipment Class: (15) Batteries on Racks Equipment

Description:

125V DC ESF DIST CENTER 212 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?

Masonry walls are seismic and would not collapse on 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?

Adjacent panel 2DCO4E is not bolted to 2DCO6E. Per operationsneither cabinet contains relays therefore this is acceptable.

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 M. Delaney & P. Gazda 8/6/12 am, 8/8/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-123

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC06E Equipment Class: (15) Batteries on Racks Equipment

Description:

125V DC ESF DIST CENTER 212 Photos C-124

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 4 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC06E Equipment Class: (15) Batteries on Racks Equipment

Description:

125V DC ESF DIST CENTER 212 C-125

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC06EA Equipment Class: . (14) Distribution Panels Equipment

Description:

125V DC ESF DIST PNL 212 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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% Yes 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? Yes

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies ifthe item is one of the 50% for which an anchorage configuration verification is required.)

Drawing 6E-0-339 1C Revision BE Part of 2DCO6E .

Weld exceeds drawing requirements

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

C-126

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC06EA Equipment Class: (14) Distribution Panels Equipment

Description:

125V DC ESF DIST PNL 212 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?

Masonry walls are seismic and would not collapse on adjacentequipment

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 M. Delaney & P. Gazda 8/6/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-127

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC06EA Equipment Class: (14) Distribution Panels Equipment

Description:

125V DC ESF DIST PNL 212 Photos Byron 1 & 2 029 2DC06EA C-128

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 4 Status: E N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC10J Equipment Class: (14) Distribution Panels Equipment

Description:

125V DC FUSE PANEL - DIV. 21 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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% Yes 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? Yes

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Drawing 6E-0-339 1E Revision AT Panel is well-anchored. Anchor spacing varies from drawing but anchorsize of 5/8" requiresa minimum spacing of 7 1/2" per DCS 24.1.2 Revision 1, the as-builtspacing of 9" is greaterthan the minimum spacing and is acceptable.

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

C-129

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC1OJ Equipment Class: (14) Distribution Panels Equipment

Description:

125V DC FUSE PANEL - DIV. 21 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?

Other miscellaneous issues:

Cable tray riser- cables are contained at base and at top with grips. Riser is well-supported at top and bottom - not a structural/seismicissue and is acceptable.

Small, hairlinecracks are not a structural/seismicissue.

Comments Seismic walkdown team M. Delaney & P. Gazda 8/6/12 am, 8/8/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-130

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC1OJ Equipment Class: (14) Distribution Panels Equipment

Description:

125V DC FUSE PANEL - DIV. 21 Photos 2DC10J (Q 1 & 2 020 C-131

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 4 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DC1OJ Equipment Class: (14) Distribution Panels Equipment

Description:

125V DC FUSE PANEL - DIV. 21 C-132

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 4 Status: iI N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DG01KA Equipment Class: (17) Engine-Generators Equipment

Description:

2A DIESEL GENERATOR SKID Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 401.00 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% Yes 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? Yes

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

DrawingM-1222 Sheet 8 Revision J

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

C-133

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DG01KA Equipment Class: (17) Engine-Generators Equipment

Description:

2A DIESEL GENERATOR SKID 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?

Small oil leaks - not a structural/seismicissue Comments Seismic walkdown team M. Delaney & P. Gazda 8/7/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-134

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. I Correspondence No.: RS-12-161 Sheet 3 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DGOIKA Equipment Class: (17) Engine-Generators Equipment

Description:

2A DIESEL GENERATOR SKID Photos C-135

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 4 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DG01KA Equipment Class: (17) Engine-Generators Eauioment Descriotion: 2A DIESEL GENERATOR SKID C-136

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DO01TA Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

DIESEL OIL STORAGE TANK Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 373.00 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% Yes 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? Yes Very minor cracks in grout wash does not penetrate into grout or base slab.

Not a structural/seismicissue.

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Drawing M-1214 Sheet 3 Revision W

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

C-137

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DO01TA Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

DIESEL OIL STORAGE TANK 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 Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-138

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: F N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2DOO1TA Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

DIESEL OIL STORAGE TANK Photos None.

C-139

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC004A Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX TUBE SIDE VENT VALVE Project: Byron 2 SWEL Location (Bidg, Elev, Room/Area): FH, 401.00 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-ae

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?

C-140

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: Mi N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC004A Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX TUBE SIDE VENT VALVE 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?

Masonry walls are seismic and will not collapse on adjacentequipment

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 M. Delaney & P. Gazda 8/9/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-141

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC004A Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX TUBE SIDE VENT VALVE Photos Zt-L;UU4A byron 1i6, z ti-to-1z LXS C-1 42

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC004B Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX SHELL SIDE VENT Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): FH, 401.00 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?

C-143

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC004B Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX SHELL SIDE VENT 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?

Masonry walls are seismic and would not collapse on adjacentequipment

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 M. Delaney & P. Gazda 8/9/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-144

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC004B Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX SHELL SIDE VENT Photos 2FC004B Byron 1 & 2 8-9-12 049 C-145

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC005 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP CASING DRN VALVE Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): FH, 401.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Waikdown 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 ifthe 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?

C-146

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC005 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP CASING DRN VALVE 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 M. Delaney & P. Gazda 8/9/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 A 4 Philip Gazda 10/5/2012 C-147

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC005 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP CASING DRN VALVE Photos zt-uuuo byron i ot /- ts-viz u-ju C-148

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC006 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP CASING VENT VALVE Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): FH, 401.00 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?

C-149

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC006 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP CASING VENT VALVE 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?

No structural/seismicissues Comments Seismic walkdown team M. Delaney & P. Gazda 8/9/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-150

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC006 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP CASING VENT VALVE zr-Uuuo byron 1 & z t-v-lz uaz C-151

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC011 Equipment Class: (0) Other Equipment

Description:

SFP FLT DEMIN LOOP RTRN TO U-2 REFUEL CAV CNMT ISOL VALVE Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 364.00 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?

C-152

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: Mf N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC011 Equipment Class: (0) Other Equipment

Description:

SFP FLT DEMIN LOOP RTRN TO U-2 REFUEL CAV CNMT ISOL VALVE Interaction Effects 7' Are soft targets free from impact by nearby equipment or structures? Yes Handrailmodified to provide clearance for valve and to prevent spatial interaction issues. Clearancesare relatively large for potentialpipe movements during a seismic event.

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?

Valve is weIl-supported at penetrationand downstream.

Comments Seismic walkdown team M. Delaney & P. Gazda 8/21/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-153

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC011 Equipment Class: (0) Other Equipment

Description:

SFP FLT DEMIN LOOP RTRN TO U-2 REFUEL CAV CNMT ISOL VALVE Photos C-154

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC01A Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HEAT EXCHANGER Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): FH, 401.00 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.

Anchoracqe

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

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

DrawingM-1219 Sheet 3 Revision AH

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

C-155

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC01A Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HEAT EXCHANGER 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?

Masonry walls are seismic and would not collapse on adjacentequipment

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 M. Delaney & P. Gazda 8/9/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-156

Byron Generating Station Unit 2 1200108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC01A Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HEAT EXCHANGER Photos ztruui#A iyron 1 & z ij-w-1e uoi C-157

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 4 Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC01P Equipment Class: (5) Horizontal Pumps Equipment

Description:

PUMP,SPENT FUEL PIT 12X14-14 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): FH, 401.00 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% Yes 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? Yes

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Drawing M-1219 Sheet 3 Revision AH

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

C-158

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC01P Equipment Class: (5) Horizontal Pumps Equipment

Description:

, PUMP,SPENT FUEL PIT 12X14-14 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?

Masonry walls are seismic and would not collapse on adjacentequipment

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 M. Delaney & P. Gazda 8/9/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-159

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC01P Equipment Class: (5) Horizontal Pumps Equipment

Description:

PUMP,SPENT FUEL PIT 12X14-14 Photos 2FC01 P Byron 1 & 2 8-9-12 026 C-160

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 4 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FCOIP Equipment Class: (5) Horizontal Pumps Eauioment

Description:

PUMP.SPENT FUEL PIT 12X14-14 zmui t- byron -i dt z ts-u--iz uzo C-161

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet I of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC022 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP SUCT INST ISOL TO 2PI-633 VALVE Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): FH, 401.00 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.

Anchoracqe

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?

C-1 62

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: [T N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC022 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP SUCT INST ISOL TO 2PI-633 VALVE 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?

Masonry walls are seismic and would not collapse on adjacent 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 M. Delaney & P. Gazda 8/9/12 am Evaluated by: Marlene Delaney Date: 10/5/2012

(* */ "Philip Gazda 10/5/2012 C-163

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC022 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP SUCT INST ISOL TO 2PI-633 VALVE 2PUL;22 byron 1 & 2 d-U-12 Ub4 C-164

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: MI N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8756 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP SUCTION VALVE Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): FH, 401.00 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?

C-165

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8756 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP SUCTION VALVE 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?

Masonry walls are seismic and would not collapse on adjacentequipment

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 M. Delaney & P. Gazda 8/9/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-166

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8756 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP SUCTION VALVE Photos C-167

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: F N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8757 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP SUCT INST ROOT TO 2PI-633 VALVE Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): FH, 401.00 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?

C-168

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8757 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP SUCT INST ROOT TO 2PI-633 VALVE 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 seismicinteraction 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?

No structural/seismicissues Comments Seismic walkdown team M. Delaney & P. Gazda 8/9/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-169

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8757 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP SUCT INST ROOT TO 2PI-633 VALVE Photos C-170

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-1 2-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8758 Equipment Class: (0) Other Equipment

Description:

REFUELING WTR PURIF PMP SUCT FROM U-2 RWST Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 364.00 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?

C-171

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8758 Equipment Class: (0) Other Equipment

Description:

REFUELING WTR PURIF PMP SUCT FROM U-2 RWST 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?

No structural/seismicissues Comments Seismic walkdown team M. Delaney & P. Gazda 8/21/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-172

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8758 Equipment Class: (0) Other Equipment

Description:

REFUELING WTR PURIF PMP SUCT FROM U-2 RWST Photos C-173

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8762A Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

SPENT FUEL PIT HX INLET VALVE Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): FH, 401.00 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 ifthe 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?

C-174

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8762A Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

SPENT FUEL PIT HX INLET VALVE 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?

Masonry walls are seismic and would not collapse on adjacent 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?

Boron leak IR tag attachedto valve. Leak not active. Not a structural/seismic issue.

Comments Seismic walkdown team M. Delaney & P. Gazda 8/9/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-175

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: Y N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8762A Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

SPENT FUEL PIT HX INLET VALVE Photos 21- LXI 16ZA b~yron 1 & z ts-9-12zu~i C-1 76

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8762B Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX OUTLET VALVE Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): FH, 401.00 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?

C-177

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8762B Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX OUTLET VALVE 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?

Masonry walls are seismic and would not collapse on adjacent 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?

No structural/seismicissues Comments Seismic walkdown team M. Delaney & P. Gazda 8/9/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 6 ' */*4"

• Philip Gazda 10/5/2012 C-178

Byron Generating Station Unit 2 12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8762B Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX OUTLET VALVE Photos None.

C-179

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8792A Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX TUBE SIDE DRN VALVE Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): FH, 401.00 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?

C-180

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: F N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8792A Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX TUBE SIDE DRN VALVE 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?

Masonry walls are seismic and would not collapse on adjacent 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 M. Delaney & P. Gazda 8/9/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-181

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: FTN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8792A Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX TUBE SIDE DRN VALVE 2FC8792A Byron 1 & 2 8-9-12 043 C-182

12Q0108.20-R-002 Rev. I Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8792B Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX SHELL SIDE DRN VALVE Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): FH, 401.00 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?

C-183

12Q-108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8792B Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX SHELL SIDE DRN VALVE 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?

No structural/seismicissues Comments Seismic walkdown team M. Delaney & P. Gazda 8/9/12 am Evaluatedby: Marlene Delaney Date: 10/5/2012 62 *

• Philip Gazda 1015/2012 C-184

1200108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: MI- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8792B Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT HX SHELL SIDE DRN VALVE Photos zi-u15ThJm uyron 1 & z a5-9-1z u45 C-185

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8793 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP DISCH CHECK VALVE Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): FH, 401.00 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?

C-186

12Q-108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8793 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP DISCH CHECK VALVE 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?

Masonry walls are seismic and would not collapse on adjacent 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?

No structural/seismicissues Comments Seismic walkdown team M. Delaney & P. Gazda 8/9/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-187

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FC8793 Equipment Class: (0) Other Equipment

Description:

SPENT FUEL PIT PMP DISCH CHECK VALVE Photos zt-U~ts$(V byron 1 & Z U-9-1 Z U34 C-188

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: MI- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FT-AF012 Equipment Class: (18) Instruments on Racks Equipment

Description:

AF TO SG 2A FLOW TRANSMITTER Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 364.00 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?

Instrument is securely attached to Rack 2PL84JB which is well-braced and anchored.

C-189

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FT-AF012 Equipment Class: (18) Instruments on Racks Equipment

Description:

AF TO SG 2A FLOW TRANSMITTER 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 M. Delaney & P. Gazda 8/20/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-190

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2FT-AF012 Equipment Class: (18) Instruments on Racks Equipment

Description:

AF TO SG 2A FLOW TRANSMITTER Photos 2FT-AF012 Byron 1 & 2 8-20-12 069 C-191

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 21P02E Equipment Class: (4) Transformers Equipment

Description:

INSTRUMENT BUS 212 TRANSFORMER - DIV. 22 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

C-192

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 21P02E Equipment Class: (4) Transformers Equipment

Description:

INSTRUMENT BUS 212 TRANSFORMER - DIV. 22 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?

Masonry walls are seismic and would not collapse on adjacent 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 M. Delaney & P. Gazda 8/6/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-193

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 21P02E Equipment Class: (4) Tran isformers Equipment

Description:

INSTRLJMENT BUS 212 TRANSFORMER - DIV. 22 Photos C-1 94

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 21P05E Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

INSTRUMENT BUS 211 INVERTER - DIV. 21 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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% Yes 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? Yes

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Drawing 6E-0-3391C Revision BE

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

C-195

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 21P05E Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

INSTRUMENT BUS 211 INVERTER - DIV. 21 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 M. Delaney & P. Gazda 8/6/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-196

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 21P05E Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

INSTRUMENT BUS 211 INVERTER - DIV. 21 Photos None.

C-197

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 21P06E Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

INSTRUMENT BUS 212 INVERTER - DIV. 22 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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% Yes 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? Yes

5. Is the anchorage configuration consistent with plant documentation? (Note: Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Drawing 6E-0-3391C Revision BE (anchorage visible through panel at base of equipment)

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

C-198

12Q-108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: E-i N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 21P06E Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

INSTRUMENT BUS 212 INVERTER - DIV. 22 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?

Masonry walls are seismic and would not collapse on adjacentequipment

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 M. Delaney & P. Gazda 8/6/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-199

1200108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: MI- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 21P06E Equipment Class: (16) Battery Chargers and Inverters Equipment

Description:

INSTRUMENT BUS 212 INVERTER - DIV. 22 Photos C-200

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 21Y-0606 Equipment Class: (18) Instruments on Racks Equipment

Description:

RH HX 2A OUT I/P TRANSDUCER Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 364.00 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?

Instrument is securely attached to Rack 2PL86J which is well-braced and anchored.

C-201

12Qo108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: F] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 21Y-0606 Equipment Class: (18) Instruments on Racks Equipment

Description:

RH HX 2A OUT I/P TRANSDUCER 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 M. Delaney & P. Gazda 8/20/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 6711 Philip Gazda 10/5/2012 C-202

12001 08.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 21Y-0606 Equipment Class: (18) Instruments on Racks Equipment

Description:

RH HX 2A OUT I/P TRANSDUCER Photos C-203

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2MS001C Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

MS ISOL VLV LOOP 2C ASMBLY Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 377.00 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?

C-204

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 4 Status: L-] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2MS001C Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

MS ISOL VLV LOOP 2C ASMBLY 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?

One bolt missing at accumulator(top of valve), typical for all valves of this type. Station personnelcontacted and missing bolts are acceptable since they are only used for rigging. Not a seismic/structuralissue.

Degradationat expansionjoint with containment wall (at ceiling)- not a structural/seismicissue. The joints in question are made up of some sort of compressible/flexible material. Since the containment structure is a standalonestructure and is analyzed and designed that way there is a gap between it and an adjacentstructure (like the MSIV rooms). The gap is sized to allow seismic movements of each structure and is filled with the flexible material. The material is only there to close the opening and has no structural or seismic significance.

Comments Seismic walkdown team M. Delaney & P. Gazda 8/7/12 am C-205

1200108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 4 Status: MI- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2MSI001 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

MS ISOL VLV LOOP 2C ASMBLY Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 Photos C-206

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 4 of 4 Status: [M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2MS001 C Equipment Class: (7)Fluid-Operated Valves Fnminm.nt Dnpqrintinn: MS ISOL VLV LOOP 2C ASMBLY C-207

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet I of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2MS018C Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

S/G 2C PORV Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 404.00 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? NotApplicable

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?

C-208

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2MS018C Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

S/G 2C PORV 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?

No structural/seismicissues Comments Seismic walkdown team M. Delaney & P. Gazda 8/7/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-209

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2MS018C Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

S/G 2C PORV Photos C-2 10

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: T N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2MS018D Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

S/G 2D PORVASMBLY Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 401.00 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?

C-21 1

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: V N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2MS018D Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

S/G 2D PORV ASMBLY 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 co!lapse 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 M. Delaney & P. Gazda 8/7/12 am Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-212

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2MS018D Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

S/G 2D PORV ASMBLY Photos C-213

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 4 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA01J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK PROT CH 1 0-3373B AB2 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussion in Section 5 of report to address cove molding at anchorage detail. Anchorage is judged to be acceptable.

C-214

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 4 Status: T N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA01J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK PROT CH 1 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Adjacent cabinets are bolted together to eliminate spatial interactionduring a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengagedin a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-215

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 4 Status: [-v N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA01J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK PROT CH 1 0-3373B AB2 Photos C-216

-I2Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 4 of 4 Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA01J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK PROT CH 1 0-3373B AB2 C-217

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA02J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK PROT CH 2 0-3373B AB2 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussion in Section 5 of report to address cove molding at anchorage detail. Anchorage is judged to be acceptable.

C-218

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA02J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK PROT CH 2 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Adjacent cabinets are bolted together to eliminate spatialinteractionduring a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengaged in a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-219

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA02J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK PROT CH 2 0-3373B AB2 Photos C-220

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet I of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA03J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK PROT CH 3 0-3373B AB2 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussion in Section 5 of report to address cove molding at anchorage detail. Anchorage is judged to be acceptable.

C-221

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA03J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK PROT CH 3 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Adjacent cabinetsare bolted togetherto eliminate spatialinteractionduring a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengagedin a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-222

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA03J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK PROT CH 3 0-3373B AB2 zt--u~jj byron 1 & z u~o C-223

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA04J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK PROT CH 4 0-3373B AB2 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussionin Section 5 of report to addresscove molding at anchorage detail. Anchorage is judged to be acceptable.

C-224

12Q1 08.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA04J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK PROT CH 4 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Adjacent cabinets are bolted togetherto eliminate spatialinteractionduring a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengagedin a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-225

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: MI- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA04J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK PROT CH 4 0-3373B AB2 Photos C-226

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA06J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK CONT GRP 2 0-3373B AB2 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussion in Section 5 of report to addresscove molding at anchorage detail. Anchorage is judged to be acceptable.

C-227

12Q-108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: FT N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA06J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK CONT GRP 2 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Adjacent cabinets are bolted together to eliminate spatialinteractionduring a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengaged in a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-228

12Q0108.20-R-002 Rev. I Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M-I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA06J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK CONT GRP 2 0-3373B AB2 Photos C-229

12Q0108.20-R-002 Rev. I Correspondence No.: RS-12-161 Sheet I of 3 Status: F N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA07J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK CONT GRP 3 0-3373B AB2 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussion in Section 5 of report to address cove molding at anchorage detail. Anchorage is judged to be acceptable.

C-230

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA07J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK CONT GRP 3 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Adjacent cabinets are bolted together to eliminate spatial interaction during a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengaged in a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 C . Philip Gazda 10/5/2012 C-231

12Q01 08.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA07J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK CONT GRP 3 0-3373B AB2 Photos C-232

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: LIII N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA08J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK CONT GRP 4 0-3373B AB2 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussion in Section 5 of report to address cove molding at anchorage detail. Anchorage is judged to be acceptable.

C-233

1200108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M-N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA08J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK CONT GRP 4 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Bolted to adjacentpanel 2PAO7J. Adjacent cabinets are bolted together to eliminate spatial interactionduring a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengagedin a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-234

I 2Q01 08.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA08J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROC I+C RACK CONT GRP 4 0-3373B AB2 Photos C-235

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA09J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROT SYST SOL ST RX/ESF TRN A 0-3373B AB2 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussion in Section 5 of report to address cove molding at anchorage detail. Anchorage is judged to be acceptable.

C-236

1200108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA09J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROT SYST SOL ST RX/ESF TRN A 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Externally bolted to adjacentPanel2PA 11J in back of paneL Interiorbolting present at front to 2PA 11J and both sides to 2PA33J. Adjacent cabinets are bolted together to eliminate spatialinteraction during a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengaged in a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 43rý Philip Gazda 10/5/2012 C-237

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA09J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROT SYST SOL ST RX/ESF TRN A 0-3373B AB2 Photos C-238

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA10J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROT SYST SOL ST RX/ESF TRN B 0-3373B AB2 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary,, 451.00 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? Yes

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?

See discussion in Section 5 of report to address cove molding at anchorage detail. Anchorage is judged to be acceptable.

C-239

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA10J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROT SYST SOL ST RX/ESF TRN B 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Adjacent cabinets are bolted together to eliminate spatial interactionduring a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block Walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengagedin a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-240

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3of 3 Status: T N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA1 OJ Equipment Class: (20) Insrumentation and Control Panels and Cabinets Equipment

Description:

CAB PROT SYST SOL ST RX/ESF TRN B 0-3373B AB32

,Photos C-241

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA11J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB TEST SAFEGUARD TRN A 0-3373B AB3 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussion in Section 5 of reportto address cove molding at anchorage detail. Anchorage isjudged to be acceptable.

C-242

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA11J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB TEST SAFEGUARD TRN A 0-3373B AB3 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Bolted to adjacent Panel2PAO9J externally on back of panel and on through the interiorsides on the front of the panel. (Panelwas opened) Adjacent cabinets are bolted together to eliminate spatial interactionduring a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengagedin a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-243

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA11J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB TEST SAFEGUARD TRN A 0-3373B AB3 Photos C-244

120Q108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA12J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB TEST SAFEGUARD TRN B 0-3373B AB2 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussion in Section 5 of report to address cove molding at anchorage detail. Anchorage is judged to be acceptable.

C-245

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA12J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB TEST SAFEGUARD TRN B 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Adjacent cabinets are bolted togetherto eliminate spatialinteractionduring a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengagedin a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 816112 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-246

12Q0108.20-R-002 Rev. I Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA12J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB TEST SAFEGUARD TRN B 0-3373B AB2 Photos C-247

12Q-10820-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: iTI N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA13J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB ESF SEQ/ACT TRN A 0-3373B AB2 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussion in Section 5 of report to address cove molding at anchorage detail. Anchorage is judged to be acceptable.

C-248

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: F N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA13J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB ESF SEQ/ACT TRN A 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Adjacent cabinets are bolted togetherto eliminate spatialinteractionduring a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengagedin a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-249

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA13J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB ESF SEQ/ACT TRN A 0-3373B AB2 Photos C-250

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA14J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB ESF SEQ/ACT TRN B 0-3373B AB2 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussion in Section 5 of report to address cove molding at anchorage detail. Anchorage is judged to be acceptable.

C-251

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA14J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB ESF SEQ/ACT TRN B 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Adjacent cabinets are bolted togetherto eliminate spatialinteraction during a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. lR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengagedin a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-252

12QO0108.*2R-002 Rev.

Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA14J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB ESF SEQ/ACT TRN B 0-3373B AB2 Photos C-253

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: V N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA27J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB RELAY AUX SAFEGUARD TRN A 0-3373B AB2 Project: . Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussion in Section 5 of report to address cove molding at anchorage detail. Anchorage is judged to be acceptable.

C-254

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA27J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB RELAY AUX SAFEGUARD TRN A 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Adjacent cabinets are bolted togetherto eliminate spatial interactionduring a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengagedin a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-255

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: FTN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA27J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB RELAY AUX SAFEGUARD TRN A 0-3373B AB2 Photos z tAzUt tyron -i a, z u (

C-256

12QO108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA28J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB RELAY AUX SAFEGUARD TRN B 0-3373B AB2 Project: Byron 2 SWEL Location (Bldg, Elev, Room/Area): Auxiliary, 451.00 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? Yes

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?

See discussion in Section 5 of report to address cove molding at anchorage detail. Anchorage is judged to be acceptable.

C-257

12Q-108.20-R-002 Rev. I Correspondence No.: RS-12-161 Sheet 2 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA28J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB RELAY AUX SAFEGUARD TRN B 0-3373B AB2 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Adjacent cabinets are bolted together to eliminate spatial interactionduring a seismic event.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes masonry block walls not likely to collapse onto the equipment?

Partiallyopen S-hooks on lights. IR 1397694 was written to inspect and close S-hooks. S-hooks are not likely to become disengagedin a seismic event since they are not fully open and are therefore acceptable.

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 M. Delaney & P. Gazda 8/6/12 pm Evaluated by: Marlene Delaney Date: 10/5/2012 Philip Gazda 10/5/2012 C-258

12Q0108.20-R-002 Rev. 1 Correspondence No.: RS-12-161 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 2PA28J Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CAB RELAY AUX SAFEGUARD TRN B 0-3373B AB2 Photos C-259