ML12348A084

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Response to 10 CFR 50.54(f) Request for Information, Recommendation 2.3, Seismic, Part 4 of 5
ML12348A084
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 11/27/2012
From:
Constellation Energy Nuclear Group, EDF Group
To:
Office of Nuclear Reactor Regulation
References
Download: ML12348A084 (89)
v • d • e


Text

ATTACHMENT 3 WALKDOWN CHECKLISTS Status: N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2SFC*P1B Equipment Class: (5) Horizontal Pumps Equipment

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Description:==

SFC WATER CIRC PUMP 1B Project: Nine Mile 2 SWEL Location (Bldg, Elev, Room/Area):

SC, 290.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

No 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: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Not Applicable

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

Yes Interaction Effects C-340 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2SFC*P1B Equipment Class: (5) Horizontal Pumps Equipment

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Description:==

SFC WATER CIRC PUMP 1B 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: George G Thomas Date: 08/23/12 Neda Stoeva 08/23/12 Photos C-341 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: E N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2SFC*SOV54A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

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Description:==

SKIMMER SURGE TANK OUTLET Project: Nine Mile 2 SWEL Location (Bldg, Elev, Room/Area):

SC, 331.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

No 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?
4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Not Applicable Not Applicable Not Applicable

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

Yes Interaction Effects C-342 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2SFC*SOV54A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

==

Description:==

SKIMMER SURGE TANK OUTLET 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: -George G Thomas Date: 08/23/12 Neda Stoeva 08/23/12 Photos C-343 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2SFC*SOV54A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

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Description:==

SKIMMER SURGE TANK OUTLET C-344 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: Y N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2CES*RAK105 Equipment Class: (18) Instruments on Racks Equipment

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Description:==

RACK (SFC/CMS INSTRUMENTATION)

Project: Nine Mile 2 SWEL Location (Bldg, Elev, Room/Area):

SC, 261.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

DRW 12177-MS-1930

2. Is the anchorage free of bent, broken, missing or loose hardware?Yes 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: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

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

Yes Interaction Effects C-345 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2CES*RAK105 Equipment Class: (18) Instruments on Racks Equipment

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Description:==

RACK (SFC/CMS INSTRUMENTATION)

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: George G Thomas Date: 08/23/12"XA " Neda Stoeva 08/23/12 Photos C-346 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2CES*RAK105 Equipment Class: (18) Instruments on Racks ipment

Description:

RACK (SFC/CMS INSTRUMENTATION)

C-347 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: r-I N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2SWP*MOV17A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

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Description:==

MOTOR OPERATED GATE VALVE Project: Nine Mile 2 SWEL Location (Bldg, Elev, Room/Area):

SC, 206.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

No 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?
4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Not Applicable Not Applicable Not Applicable

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

Yes Interaction Effects C-348 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2SWP*MOV17A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

==

Description:==

MOTOR OPERATED GATE VALVE 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: " George G Thomas Date: 08/23/12 Neda Stoeva 08/23/12 Photos C-349 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2SWP*MOV17A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves ipment

Description:

MOTOR OPERATED GATE VALVE MG_0310 C-350 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2CCP*MOV14A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

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Description:==

GATE VALVE SFC*E1A INLET (MOTOR OPERATED VALVE)Project: Nine Mile 2 SWEL Location (Bldg, Elev, Room/Area):

SC, 217.00 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% IS of SWEL items requiring such verification)?

0o 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?
4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Not Applicable Not Applicable Not Applicable

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

Yes Interaction Effects C-351 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2CCP*MOV14A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

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Description:==

GATE VALVE SFC*E1A INLET (MOTOR OPERATED VALVE)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: -George G Thomas Date: 08/23/12 Neda Stoeva 08/23/12 Photos C-352 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2CCP*MOV14A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves ipment

Description:

GATE VALVE SFC*E1A INLET (MOTOR OPERATED VALVE)C-353 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: r-j] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2SWP*MOV21A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

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Description:==

SWP to SFC makeup MOV Project: Nine Mile 2 SWEL Location (Bldg, Elev, Room/Area):

SC, 291.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

No 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?
4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Not Applicable Not Applicable Not Applicable Yes Interaction Effects C-354 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: E N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2SWP*MOV21A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

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Description:==

SWP to SFC makeup MOV 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: George G Thomas Date: 08/23/12 Neda Stoeva 08/23/12 Photos C-355 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2SWP*MOV21A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves ipment

Description:

SWP to SFC makeup MOV C-356 ATTACHMENT 3 WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 2SWP*MOV21A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves ipment

Description:

SWP to SFC makeup MOV C-357 ATTACHMENT (4)AREA WALK-BY CHECKLIST Constellation Energy Nuclear Group, LLC November 27, 2012 ATTACHMENT 4 AREA WALK-BY CHECKLIST D Area Walk-By Checklists (AWCs)Table D-1. Summary of Area Walk-By Checklists AWC Page No. Build. El. Room-Area-Desc.

1 CB 237'-0" Control Building (Adj. to 2VBA*UPS2C)

D-3 2 CB 261'-0" Remote Shutdown Room D-6 3 CBR 261'-0" Standby Battery Room A D-8 4 CSA 261'-0" Div 1 Switchgear Room D-11 5 CCL 261'-0" Control building HVAV Room D-20 6 CSA 261'-0" Div 3 Switchgear Room D-25 7 CTR 288'-0" Cable Chase D-30 8 CRR 288'-0" Relay Room D-37 9 CCR 306'-0" Control Building (Adj. to 2CEC*PNL622)

D-38 10 DG 261'-0" Division 1 DG Control Room D-44 11 DG 261'-0" Division 3 DG Control Room D-48 12 DG 261'-0" Division 1 Diesel Generator D-51 13 SW 224'-0" Div. I Service Building Pump Bay A D-55 14 SW 261'-0" Div. I Service Building Pump Bay A D-59 15 SW 261'-0" Div. 2 Service Building Pump Bay B D-63 16 ABN 175'-0" RHR HX A Room & RHR Pump Room A D-66 17 N/U N/U Not used N/A 18 SC 175'-0" N-E Quadrant D-71 19 SC 175'-0" S-E Quadrant D-75 20 SC 175'-0" RCIC Room D-79 D-1 ATTACHMENT 4 AREA WALK-BY CHECKLIST Table D-1. Summary of Area Walk-By Checklists AWC Page No. Build. El. Room-Area-Desc.

21 ABS 175'-0" RHR HX B Room D-82 22 ABN 196'-0" RHR HX A Room by MOV 9A D-85 23 SC 196'-0" S-E Quadrant D-87 24 SC 196'-0" North Side D-89 25 ABN 215'-0" Aux Building North D-92 26 SC 215'-0" N-W Quadrant D-95 27 SC 215'-0" S-W Quadrant D-98 28 ABN 240'-0" Aux Building North D-103 29 SC 240'-0" S-E Quadrant D-108 30 SC 240'-0" N-E Quadrant D-113 31 SC 261'-0" S-W Quadrant (Ground Level) D-117 32 SC 261'-0" N-W Quadrant (Ground Level). D-123 33 SC 289'-0" N-E Quadrant D-129 34 SC 289'-0" N-W Quadrant D-136 35 SC 289'-0" S-E Quadrant D-137 36 SC 289'-0" Spent Fuel Pool Pump Room D-142 37 SC 306'-0" West Side (Adj. to 2GTS*AOV101)

D-144 38 SC 308'-0" N-W Quadrant (Adj. to 2SFC*SOV54A)

D-146 39 SG 261'-0" Standby Gas Building A D-148 40 PT 255'-0" Pipe Tunnel (Adj. to 2SWP*MOV599)

D-150 41 SC 184'-0" RCIC Room (by Valves 21CS*115, 120 & 150) D-153 D-2 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: F N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 01 -CB, 237'-0" -Control Building (Adj. to 2VBA*UPS2C)

Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

It was noted that 2 VBA *XD2C anchor bolts not aligned, see pictures.

-This is not a concern.2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?

3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

D-3 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 01 -CB, 237'-0" -Control Building (Adj. to 2VBA*UPS2C)

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by:George G Thomas Neda Stoeva Date: 08/23/12 08/23/12 MG_0794 MG_0795 D-4 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 01 -CB, 237'-0" -Control Building (Adj. to 2VBA*UPS2C)

Mr. n7Cl Mr. f7Q7 Mr. n7QR Mr. n7QQ D-5 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 01 -CB, 237'-0" -Control Building (Adj. to 2VBA*UPS2C)

MG_0800 MG_0801 Status: YE U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 02 -CB, 261'-0" -Remote Shutdown Room Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?Yes Yes Yes Yes Yes Yes D-6 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 01 -CB, 237'-0" -Control Building (Adj. to 2VBA*UPS2C)

7. Does it appear that the area is free of potentially adverse seismic interactions No associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

An interaction with the display monitor and cabinet set up next to the panel in the room was noted. Addressed in MASP N2-121 1, Seismic Eval # 650. Also, lights have open "S" hooks behind Panel 2CES*PNL405.

Open 'S' hooks were addressed in CR-2012-008907.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by: -- George G Thomas Date: 08/23/12 Neda Stoeva 08/23/12 MG_0891 MG_0892 D-7 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Mi N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 03 -CBR, 261'-0" -Standby Battery Room A Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Yes 2. Does anchorage of equipment in the area appear to be free of significant degraded conditions?

3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?Yes Yes Yes 4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?Yes 6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?Yes 7. Does it appear that the area is free of potentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

Yes D-8 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 03 -CBR, 261'-0" -Standby Battery Room A 8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by: George G Thomas Neda Stoeva Date: 08/23/12 08/23/12 MG_0811 MG_0812 D-9 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 03 -CBR, 261'-0" -Standby Battery Room A Mr. OR1i MG_0814 MG_0815 D-10 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y [-j U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 04 -CSA, 261'-0" -Div 1 Switchgear Room Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic interactions No associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

A potential interaction with the Switchgear Jack (a long hooked metal rod)was hooked to a basket behind Panel 2EJS*USI that could fall during an earthquake was noted. Jack issue addressed in Training Review Request TRR-2012-483.

Also, lights have open "S" hooks above Panel 2EHS*MCCI03C were identified.

Open 'S' hooks were addressed in CR-2012-D-11 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y W U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 04 -CSA, 261'-0" -Div 1 Switchgear Room 008907.8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by: George G Thomas Neda Stoeva Date: 08/23/12 08/23/12 MG_0825 MG_0826 D-12 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y [-N U Area Walk-By Checklist (AWC)MG 0829 Mr WinA D-13 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y W U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 04 -CSA, 261'-0" -Div 1 Switchgear Room MG_0831 MG_0832 MG 0833 Mr nA4A MG_0845 MG_0846 D-14 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: YE U Area Walk-By Checklist (AWC)Mr 08AN D-1 5 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y W U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 04 -CSA, 261'-0" -Div 1 Switchgear Room MG_0866 MG_0868 MG_0871 MG_0872 D-16 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y r-] U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 04 -CSA, 261'-0" -Div I Switcl IInM9 Mr. nRA7 M(, 08T7 Mr, 0n7R D-17 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y 7N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 04 -CSA, 261'-0" -Div I Switchgear Room MG_0877 MG_0878 Mr. 0R79 M. nfRRn MG_0894 MG_0895 D-18 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 04 -CSA, 261'-0" -Div 1 Switchgear Room MG_0896 D-1 9 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: T] N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 05 -CCL, 261'-0" -Control building HVAV Room Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

D-20 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: 7 N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 05 -CCL, 261'-0" -Control building HVAV Room It was noted that a ladder was not laterally restrained and could hit SWP piping and valves during a strong earthquake.

Ladder has since been removed.8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by:-- George G Thomas Neda Stoeva Date: 08/23/12 08/23/12 MG_0748 MG_0749 D-21 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 05 -CCL, 261'-0" -Control building HVAV Room Mr. n75fn Mr, n751 E mfl7R M n f7R1 D-22 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 05 -CCL, 261'-0" -Control building HVAV Room MG_0756 MG_0757 MG_0760 MG_0761 D-23 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Elev, Room/Area):

Area 05 -CCL, 261'-0" -Control buildii MG_0764 MG_0765 D-24 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 06 -CSA, 261'-0" -Div 3 Switchgear Room Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant degraded conditions?

Yes Yes 3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

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

Yes D-25 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 06 -CSA, 261'-0" -Div 3 Switchgear Room 8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by:-George G Thomas Date: 08/23/12 (iv4 Neda Stoeva 08/23/12 MG_0774 MG_0775 D-26 I ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: F-] N U Area Walk-By Checklist (AWC)Elev, Room/Area):

Area 06 -CSA, 261'-0" -Div 3 Switct MG_0777 MG_0776 D-27 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Elev, Room/Area):

Area 06 -CSA, 261'-0" -Div 3 Switchgear Room MG_0778 MG_0780 MG_0781 D-28 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)MG 0783 MG_0784 MG_0785 D-29 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 07 -CTR, 288'-0" -Cable Chase Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

D-30 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 07 -CTR, 288'-0" -Cable Chase 8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by: George G Thomas Date: 08/23/12 Neda Stoeva 08/23/12 D-31 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 07 -CTR, 288'-0" -Cable Chase MG_0717 MG_0718 D-32 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 07 -CTR, 288'-0" -Cable Chase MG_0720 MG_0721 MG_0722 D-33 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Elev, Room/Area):

Area 07 -CTR, 288'-0" -Cable Chase MG_0725 MG_0726 D-34 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 07 -CTR, 288'-0" -Cable Chase MG_0727 MG_0728 D-35 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Mf N U Area Walk-By Checklist (AWC)Elev, Room/Area):

Area 07 -CTR, 288'-0" -Cable Chase MG_0729 D-36 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y E U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 08 -CRR, 288'-0" -Relay Room Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant degraded conditions?

Yes Yes 3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?Yes 4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Lighting has open S-hooks near panls 828 and 896. This has been addressed in CR-2012-008907.

5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?No Yes 6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

Yes No D-37 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y l U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 08 -CRR, 288'-0" -Relay Room It was noted that temporary carts should be addressed for potential interactions.

This has been addressed in Training Review Request TRR-2012-483 and CR-2012-008949.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by:-- George G Thomas Neda Stoeva Date: 08/23/12 08/23/12 MG_0706 MG_0707 D-38 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y WI U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 08 -CRR, 288'-0" -Relay Room Mr 0708 MG 0709 MG_0710 MG_0711 D-39 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: YEE U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 09 -CCR, 306'-0" -Control Building (Adj. to 2CEC*PNL622)

Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

It was noted that there was not much that could be seen due to the finished floor.2. Does anchorage of equipment in the area appear to be free of significant degraded conditions?

3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

It was noted that the eggcrate diffusers were not clipped in and could adversely effect the Operators during an earthquake.

This was addressed in CR-2012-007408.

5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?Yes Yes Yes Yes Yes Yes D-40 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y 7N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 09 -CCR, 306'-0" -Control Building (Adj. to 2CEC*PNL622)

7. Does it appear that the area is free of potentially adverse seismic interactions No associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

It was noted that temporary equipment (cadillac

-core test cabinet) should be stored away from panels. Procedure folders are mounted on panels -CR-2012-8947 was issued. Per plant personnel-temporary equpiment is allowed per the work processes with appropriate restncation including Work In Progress' identification to an open WO and proper restraints (chocks, etc.) -Also addressed through TRR-2012-483 and CR-2012-008949.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by:--George G Thomas Neda Stoeva Date: 08/23/12 08/23/12 MG_0669 MG_0670 D-41 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 09 -CCR, 306'-0" -Control Building (Adj. to 2CEC*PNL622)

MG 0672 MG_0673 MG_0674 D-42 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y -N- U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 09 -CCR,.A MG_0676 Mr. flR7r MG_0677 D-43 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 10 -DG, 261'-0" -Division 1 DG Control Room Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?It was noted that the lights can swing during an earthquake, but were deemed not damaging.

However, one light has an open 'S' hook and may fall during an earthquake, this was addressed in CR-2012-006758.

4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area .(e.g., ceiling tiles and lighting)?

It was noted there was an unanchored desk in the room but not close enough to equipment to impact it during an earthquake.

This has been addressed in Training Review Request TRR-2012-483.

Also, lights in area need to have hooks closed. This was addressed in CR 2012-006758.

5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?D-44 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 10 -DG, 261'-0" -Division 1 DG Control Room 7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by: "- George G Thomas" Neda Stoeva Date: 08/23/12 08/23/12 MG_0047 MG_0048 D-45 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 10 -DG, 261'-0"- Division 1 DG Control Room M. nnAAQ MU nMrn urn _n-A Mr. nnrr D-46 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 10 -DG, 261'-0" -Division 1 DG Control Room MG_0056 MG_0057 MG_0058 D-47 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 11 -DG, 261'-0" -Division 3 DG Control Room Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Yes 2. Does anchorage of equipment in the area appear to be free of significant degraded conditions?

Yes 3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?Yes 4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

It was noted that there was an unanchored desk by PNL-413, 3' away. This would not interact with the panel.5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?It was noted that light can swing and impact PNL 411. Further review indicated there were no relays in the panels and it was determined that this impact was not damaging.Yes Yes 6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?Yes D-48 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 11 -DG, 261'-0" -Division 3 DG Control Room Everything was well supported.

7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?
8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Bolts and nuts missing on some overhead I-beams. It was determined that this was per design, holes were part of a standard connection that could be modified by putting the bolts in place.S -George G Thomas Evaluated by: 1*4 Date: 08/23/12 08/23/12 Neda Stoeva MG_0007 MG_0008 D-49 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 11 -DG, 261'-0" -Division 3 DG Control Room MG 0010 MG_0013 MG_0014 D-50 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 12 -DG, 261'-0" -Division 1 Diesel Generator Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Yes 2. Does anchorage of equipment in the area appear to be free of significant degraded conditions?

Yes 3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?Yes 4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Lights are secured.5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?Yes Yes 6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?Yes D-51 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: [7] N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 12 -DG, 261'-0" -Division 1 Diesel Generator 7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by:-- George G Thomas Neda Stoeva Date: 08/23/12 08/23/12 MG_0028 MG_0029 D-52 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: T N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 12 -DG, 261'-0" -Division 1 Diesel Generator......MG_0032 MG_0033 D-53 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: [i- N U Area Walk-By Checklist (AWC)Mr 00.4 MG_0035 MG_0065 D-54 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: MI N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 13 -SW, 224'-0"- Div. I Service Building Pump BayA Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant degraded conditions?

There was suface rust seen on anchor bolts for Service Water Pump 2SWP-PIC. To arrest further bolt degradation CR-2012-006807 was issued.3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?Yes Yes Yes Yes Yes Yes D-55 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 13 -SW, 224'-0" -Div. I Service Building Pump Bay A 7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by: George G Thomas (j Neda Stoeva Date: 08/23/12 08/23/12 MG_0083 MG_0084 D-56 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: F N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/A MG 0085 ftAe' AAfO-MG 0087 MG_0088 D-57 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 13 -SW, 224'-0" -Div. I Service Building Pump Bay A MG_0089 MG_0090 MG_0092 MG_0093 D-58 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 14 -SW, 261'-0" -Div. I Service Building Pump Bay A Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?

There was suface rust seen on some anchor bolts. To address further degradation these issues were addressed in CR-2012-006807 and CR-2012-006770.3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?D-59 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 14 -SW, 261'-0" -Div. I Service Building Pump Bay A 7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by: George G Thomas Neda Stoeva Date: 08/23/12 08/23/12 MG_0124 MG_0125 D-60 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y] N U Area Walk-By Checklist (AWC)/, Room/Area):

Area 14 -SW, 261'-0" -Div. I Service BL D-61 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: f-V N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 14 -SW, 261'-0" -Div. I Service Building Pump BayA MG_0130 MG_0131 MG_0132 MG_0133 D-62 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: r--] N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 15 -SW, 261'-0" -Div. 2 Service Building Pump Bay B Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?

The strainer anchors had surface rust issues like Bay A. To arrest further degradation these issues were addressed in CR-2012-006807 and CR-2012-006770.3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?D-63 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 15 -SW, 261'-0" -Div. 2 Service Building Pump Bay B 7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

Desk and storage box chained together, but not chained to anything else (ie.structural member/tie off) were observed in Service Building Pump Bay B.Vacuum by Service Water train observed.

This was moved later in the day.8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by: '- j _ ...George G Thomas 4 k-A -4 Neda Stoeva Date: 08/23/12 08/23/12 MG_0105 MG_0106 D-64 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Elev, Room/Area):

Area 15 -SW, 261'-0" -Div. 2 Service Buildii MG_0108 MG_0114 D-65 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y-] N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 16 -ABN, 175'-0" -RHR HX A Room & RHR Pump Room A Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

All anchorage was for pipe supports in area.2. Does anchorage of equipment in the area appear to be free of significant degraded conditions?

No equipment anchorage could be inspected.

3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?Yes Yes Yes Yes Yes Yes D-66 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 16 -ABN, 175'-0" -RHR HX A Room & RHR Pump Room A 7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Evaluated by: George G Thomas L* "4 -Neda Stoeva Date: 08/23/12 08/23/12 MG_0258 MG_0259 D-67 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 16 -ABN, 175'-0" -RHR HX A Room & RHR Pump Room A M(r n,2R.n Mr. nAR1 MG_0262 Mr. n!)AR'D-68 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area 16 -ABN, 175'-0" -RHR HX A Room & RHR Pump Room A MG_0266 MG_0267 MG_0270 MG_0271 D-69 ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: [ N U Area Walk-By Checklist (AWC)Elev, Room/Area):

Area 16 -ABN, 175'-0" -RHR HX A Room & RHR Pump Room A MG_0273 MG_0274 D-70

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