ML12355A057

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SNCH082-RPT-01, Ver. 1.0, Seismic Walkdown Report for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, Part 9 of 11
ML12355A057
Person / Time
Site: Hatch Southern Nuclear icon.png
Issue date: 11/26/2012
From: Stewart W
Southern Nuclear Operating Co
To:
Office of Nuclear Reactor Regulation
References
NL-12-2268 SNCH082-RPT-01, Ver. 1.0
Download: ML12355A057 (59)
v • d • e


Text

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 ATTACHMENT 4 UNIT 1 - AREA WALK-BY CHECKLISTS (AWCs)

NO. SNCH082-RPT-01 A total of 47 Area Walk-bys have been completed.

The Checklists are provided within this Attachment.

Page 1 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 3 Status: Y[- No U-Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 130 Room, Area, 109A 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 YC] NO Ui-] N/AEJ potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Nitrogen cylinderis not properly restrainedwith only one rope tie to a steel column at the east-end of the control rod drives (CRD). This cylinderis in close proximity to the CRDs. CR 5i3731 was createdto resolve this issue. See photograph 1.

2. Does anchorage of equipment. in the area appear to be free of significant YO NEI UDI N/AE]

degraded conditions?

3. Based on a visual inspection from the floor, do the cable/conduit YO NO UE] N/AE]

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 YEI NO U[3 N/AF1 interactions: with other equipment in the area (e.g., ceiling tiles and lighting)?

See response to question 1.

'If the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area selected should be described.

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 2 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: Y[-] NZ U[]

Area Walk-By Checklist (AWC)

Location: Bldg, REACTOR Floor El. 130 Room, Area' 109A

5. Does it appear that the area is free of potentially adverse seismic YO NEI UF N/AC.

interactions that could cause flooding or spray in the area?

6. Does it appear thatrthe area is free of potentially adverse seismic YI NI U- N/AD interactions that could cause a fire in the area?
7. Does it appear that the area is free. of potentially adverse seismic YFJ" NO UC N/AO interactions associated. with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

See response to question 1.

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

Comments (Additional pages may be added as necessary)

None.

Evaluated by: Juan Vizca Date: 09/07/2012 PatrickKll 09/07/2012 Page 3 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status: Yfr NEI u[-]

Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 130 Room, Area1 109A Photographs 1: Nitrogen Cylinder Improperly Secured (RI09A)

Page 4 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 4 Status: Y[I-' NE Ur--

Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130 Room, Area' SWITCHGEAR ROOM 1E 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 beloweach 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.

I. Does anchorage of equipment in the area appear to be free of YED NC] UC N/AC1 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant YID NEI UC" N/AC degraded conditions?
3. Based on a visual inspection: from the floor, do the cable/conduit YN NCI UC- N/AC 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 Iis free of potentially adverse seismic spatial YCI N' UC] N/AC interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Light fixture at southwest comer of room has tie wire which is broken for support which is a hook. The light could partiallyfall and impact 1H21ýP176. See photographs 1 and 2. CR 513990 was created to resolve this issue.

1If the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area selected should be described.

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 5 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 4 Status: YE] NO UE]

Area Walk-By Checklist (AWC)

Location: Bldg,. DIESEL Floor El. 130 Room, Areai SWITCHGEAR ROOM 1E

5. Does it appear that the area is free of potentially adverse, seismic YE NEI U[--] N/A[J interactions that could cause flooding or spray in the area?
6. Does it appear that the area is free of potentially adverse seismic YC9 NE-] U[-] N/AD interactions that could-cause a fire in the area?
7. Does it appear that the area is free of potentially adverse seismic Y0 NEI UE] N/AE interactions 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 YO NEI UE]

adversely affect the safety functions of the equipment in the area?

Comments (Additional pages may be added as necessary)

None.

Evaluated by: Juan Vizcaya Date: 09/07/2012 PatrickKel____ 09/07/2012 Page 6 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 4 Status: Y[I] No Ur-Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130 Room, Area, SWITCHGEAR ROOM 1E PhotoaraDhs 2: Broken Tie Wire for Hanging Light (Switchgear Room IE)

Page 7 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 4 of 4 2: Light with Broken Tic Wire at SW Corner of Room (Switchgear Room 1E)

Page 8 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 2 Status: YN ND-' UL--]

Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130' Room, Area' SWG ROOM 1G 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 Y& NEl Ui] N/A[]

potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant Y0 NO UL] N/A-]

degraded conditions?

3. Based on a visual inspection from the floor, do the cable/conduit YO N[l UL- N/AL]

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 Y0 NEl UEL N/AL]

interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

'If the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area selected should be described.

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 9 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1,0 Sheet 2 of 2 Status: Y] N-- U-'

Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130' Room, Area' SWG ROOM 1G

5. Does it appear that the area is free of potentially adverse seismic YO NEI UE] N/Al1 interactions that could;cause floodingor spray in the area?
6. Does it appear that the area is free of potentially adverse seismic YN Nn UEJ N/AE]

interactions that could cause a fire in the area?

7. Does it appear that the area is.free of potentially adverse seismic Y0 NO Ul] N/Al]

interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

8. Haveyou looked for and found no other seismic conditions that could YN NEI UE adversely affect the safety functions of the equipment in. the area?

Comments (Additional pages may be added as necessary)

NONE Evaluated by: Juan Vicava Date: 9110/2012 PatrickKelly ( 9/10/2012 Page 10 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet I of 2 Status: YZ NM] U[]

Area Walk-By Checklist(AWC)

Location: Bldg. DIESEL Floor El. 130' Room, Area' SWG ROOM IF Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By neat one or more SWEL items. The space below each of the following questions may be used to record the results ofjudgments 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 Y[ NOI U[ N/AEI potentially adverse seismic conditions (if visible without necessarily opening cabinets)?
2. Does anchorage of equipment in the area appear to be free of significant YZ NEIl UF] N/A' degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit YZ NE UD N/AD1 raceways and HVAC ducting appear to be free of potentially adyerse 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 YoI NC] U'I N/AE1 interactions with other equipment in the area (e.g., ceilingtiles and lighting)?

1 If the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area selected should be described.

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 11 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 2 Status: YN N-] U-E]

Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL FloorEl. 130' Room, Area' SWG ROOM IF

5. Does it appear that the area is free of potentially adverse seismic Y0 NO U-- N/A]

interactions, that could cause flooding or spray in the area?

6. Does it appear that the area is free of potentially adverse seismic Y0 NO UE" N/AI-interactionsý that could cause a fire in the area?
7. Does it appear that the area is free of potentially adverse seismic YZ ND U0J N/AD interactions 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 YCK N[l UF-adversely affect the safety functions of the equipment in the area?

Comments (Additional pages may be added as necessary)

NONE Evaluated by: Juan Vizcaya Date: 9/10/2012 Patrick Kelly' 9/10/2012 Page 12 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 5 Status: Y[ N['] U]

Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 130 Room, Area, Room C1 12 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 ofjudgments: 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 YZ NE] UE] N/AE]

potentially adverse seismic conditions. (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant YN NEI UE] N/AE]

degraded conditions?

There is mild surface oxidation on one of the anchorbolts forfuse box R25-S 10. Since oxidation is only on the surface, the bolts are not degraded. Therefore,judged not to be a concern.

3. Based on a visual inspection from the floor, do the cable/conduit YI NEI UE] N/Al]

raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequateand fill conditions of cable trays appear to be inside acceptable limits)?

There are three screws missing on the side of the HVAC strap (CR 524549). The strap is screwed to the HVAC on the bottom of the strap.

The HVAC is supportedat the wall and at an HVAC supporton either side of the strap, so the loads on the strap will be small. The single remainingscrew is judged adequate to maintain the connection between the strapand the HVAC, so there is no potentially adverse seismic condition, However, in accordancewith good engineering practice,the three screws should be replacedso there arefour screws for the support.

4. Does it appear that the area is free of potentially adverse seismic spatial YN N[] UE] N/AE]

interactions with other equipment in the area (e.g., ceilingtiles and lighting)?

IIf the room in which the SWEL item is locatedis very large (e.g., Turbine Hall), the area selected should be described.

This selected area should be based on judgment, e.g.,,on the order of about 35 feet from the SWEL item.

Page 13 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 5 Status: YZ NM UL-Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 130 Room, Area' Room C112

5. Does it appear that.the area is free of potentially adverse seismic YN NEI U["D N/AD interactions that could cause flooding or spray in the area?
6. Does it appear that the area is free of potentially adverse seismic YN NDI UI- N/AD interactions that could cause a fire in the area?
7. Does it appear that the area is free of potentially adverse seismic. YZ, NDI UED N/AD interactions 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 YN NEI UD adversely affect the safety functions of the equipment in the area?

Comments(Additional pages may be added as necessary)

There were several cable ties discovered on a large conduit. The cable ties had been cut, and whatever they had been supportinghad been removed. The abandonedcable ties are very small and light, and they are not located near any sensitive equipment. Therefore, there is no potentially adverse seismic condition.

Evaluated by: John McFarland Date: 09/25/2012 Jeff Horton 09/2512012 Page 14 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 5 Status: YN NF] U]

Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 130 Room, Area, Room Cl 12 Photogra)hs Figure 1- Surface Oxidation on Anchor Bolt (Room C 112)

Page 15 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 4 of 5 Figure 2 - Three Missing Screws in HVAC Strap (Room C 112)

Page 16 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 5 of 5 Figure 3 - Abandoned Cable Ties (Room C 112)

Page 17 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 4 Status: YZ NE] Ul-Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 87 to 130 Room, Area' HPCI 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: ofjudgments 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 Y[; N[: U0 N/AC potentially adverse seismic conditions (if visible without necessarily opening cabinets)?
2. Does anchorage of equipment in the area appear to be free of significant YM NCI UC N/AF' degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit YZ NCI UEC N/AC 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)?

Some bolts are missing from the support of the HVA C duct.near component 1E41-N028A (See attachedpictures).SWEs judged that the supportis .stilladequate since there are obviously enough bolts to supportthis small load based on engineering experience. However, a CR has.been initiatedto replace the missing bolts in the supports (CR516857).

4. Does it appear that the area is free of potentially adverse seismic spatial YN NC UC:] N/AC interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

I If the room in which the SWEL item is located is very large (e.g., Turbine.Hall), the area selected should be described.

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 18 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 4 Status: YZ Nn U' Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 87 to 130 Room, Area1 HPCI Room

5. Does it appear that the area is free of potentially adverse seismic Y0 NEI U0- N/A" interactions that could causeflooding or spray in the area?
6. Does it appear that the area is free of potentially adverse seismic Y0 NC UC N/AC interactions that could cause a fire in the area?
7. Does it appear that the area is free of potentially adverse seismic Y0 NCI, UC- N/AC interactions 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 Y0 NEI U[I adversely affect the safety functions of the equipment in the area?

Comments (Additional pages may be added as necessary)

None.

Evaluated by: Kursat Kinali A Date: 9/10/2012 Wes /ey Williams 1/ 2 ,r.9/10/120 12 Page 19 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 4 Status: Y[ NEI uF-Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 87 to 130 Room, Areae HPCJ Room Photographs Page 20 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 4 of 4 Page 21 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 3 Status: Y[ NDl] U[-

Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 87 Room,.Area; SW Diagonal Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-Bynear one or more SWEL items. The space below each of the following questions may be used to record the results ofjudgments 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 YN NEI U(( N/AED potentially adverse seismic conditions (if visible without necessarily opening cabinets)?
1. Two of the six anchorbolts on 1E51-C002-1 do not project to thefull height of the nuts (see Figure 1). This condition isjudged to be acceptable since, by observation,there will be no tensile loads on the anchors. The lack of thread engagement has no effect on the shear capacity,which governs the anchorstrength. Thus, it isjudged that there is no potentiallyadverse seismic condition.
2. Does anchorage of equipment in the area appear to be free of significant YN NEI UD- N/AE-degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit YN NEI UL] N/AE-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 YN NEI UFI N/AEl interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

IIf the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area selected should be described.

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 22 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: Y[ NE--] U[-]

Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 87 Room, Area' SW Diagonal

5. Does it appear that the area is free of potentially adverse seismic YN NEI UD N/AFJ interactions that could cause flooding or spray in the area?
6. Does it appear that the area is free of potentially adverse seismic YZ ND U[-I N/AE' interactions that could cause a fire in the area?
7. Does it appear that the area is free of potentially adverse seismic Y0 NEI Ufl N/AE]

interactions 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 YZI NEI UD adversely affect the safety functions of the equipment in the area?

Comments (Additional pages may be. added as necessary)

None Evaluated by: John McFar"ln_ Date: 09/06/2012 Jeff Horton 09/06/2012 Page 23 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status: YV N[- UE]

Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 87 Room, Area' SW Diagonal Phol Figure 1 - Bolt Thread Engagement (Reactor Bldg. EL. 87'-0", SW Diagonal)

Page 24 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 4 Status: Y[ Nn-] U[]

Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El, 87 Room, Area' NE Diagonal 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 ofjudgments 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 YU Nil Uil N/AC potentially adverse, seismic conditions (if visible without necessarily opening cabinets)?
2. Does anchorage of equipment in the area appear to be free of significant YN NEI UE- N/AE" degraded conditions?

Mild surface oxidationpresenton anchorsfor 1Ell-COOIDRHR Pump. Since oxidation is only on the surface, the anchors are not degraded.Therefore, the anchors arejudged not be a seismic concern.

3. Based on a visual inspection from the floor, do the cable/conduit YI NEI UI] N/AC]

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 Y0 NEI UC- N/AC]

interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

If the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area selected should be described.

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 25 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 4 Status: YZ N[] U[-]

Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 87 Room, Area' NE Diagonal

5. Does it appear that the area is free of potentially adverse seismic Y19 NEI UF N/A]

interactions that could cause flooding or spray in the area?

6. Does it appear that the area is free of potentially adverse seismic YO NEI U[- N/AD interactions that could cause a fire in the area?
7. Does it appear that the area is free of potentially adverse seismic YN NE U'- N/AF1 interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

There is a small plastic nozzle on the floor nearthe 1Ell-COOIDRHR Pump. The nozzle is very small and light, and it is not near any sensitive equipment. Therefore, it is judged that the nozzle does not create a potentially adverse seismic condition.

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

Comments. (Additional pages may be added as necessary)

None Evaluated by: John McFarland Date: 09/12/2012 Jeff Horton 09/12/2012 Page 26 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 4 Status: Y[ NE] U"-]

Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 87 Room, Area1 NE Dia-qonal Photographs Figure 1 - Mild Surface Corrosion on RHR Pump Anchors (Unit I RB, EL 87, NE Diagonal)

Page 27 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 4 of 4 Figure 2 - Small Plastic Nozzle (Unit I RB, EL 87, NE Diagonal)

Page 28 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet I of 3 Status: YI'- NO U['

Area Walk-By Checklist (AWC)

Location: Bldg. RB Floor El. 203' Room, Area1 Room R413, comer to 35 ft.

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 ofjudgments and findings.

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

t. Does anchorage of equipment in the area appear to be free of YED: NEI UI- N/A0 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?'
2. Does anchorage of equipment in the area appear to be free of significant YU NI] U'I N/A[]

degraded conditions?

3. Based on a visual inspection from the floor, do the cable/conduit YN NEI UE- N/AE3 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 YR NEI UEO N/AL-interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

If the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area selected.should be described.

This selected area shouldbe based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 29 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: Y-] NN U[]

Area Walk-By Checklist (AWC)

Location: Bldg. RB Floor El. 203' Room, Area' Room R413, comer to 35 ft.

5. Does it appear that the area is free of potentially adverse seismic YO NEI UE- N/AE interactions that could cause flooding or spray in the area?
6. Does it appear that the area is free of potentially adverse seismic YZ N[I UE- N/AE-interactions that could cause a fire in the area?
7. Does itappear that the area is free of potentially adverse seismic YEI NO UE1 N/AEl interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead

'shielding)?

Emergency eyewash station nearnorth-eastwall is not properly anchored.It is.a top-heavy equipment and chained from bOttom (rather than top) to a line as shown. in the attachedpictures (CR513346) 8.. Have you looked for.and found no other seismic conditions that could YO NEI UEr adversely affect the safety functions of the equipment in the area?

Comments (Additional pages may be added as necessary)

None.

Evaluated by: Kursat Kinali Date: 9/6/2012 WesfeV Williams  ;ý ý 9/612012 Page 30 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status: Y[] N U[-]

Area Walk-By Checklist (AWC)

Location: Bldg. RB Floor El. 203' Room, Area, Room R413, comer to 35 ft.

Photographs Page 31 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 5 Status: Y N[] uE]

Area Walk-By CheckliSt (AWC)

Location: Bldg. INTAKE Floor El. 111 Room, Area' Pump 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 ofjudgments and findings.

Additional space is provided, at the end of this checklist for documentingother comments.

1. Does anchorage of equipment in the area appear to be free of YN NO UE- N/AD potentially adverse seismic conditions (if visible without necessarily opening cabinets)?
2. Does anchorage of equipment in the area appear to be free of significant YO NDI UE- N/AD degraded conditions?

Mild common corrosionis present in areasnear the pumps and baseplatesof the pumps. Some supporting frame members overhead (channels)also have mild surface corrosion. These are judged not to be a seismic concern since the corrosion is only mild surface corrosion at this time. However, a CR has been initiated (CR516327) to document this wide spread issue and to take steps to ensure that corrosion will not lead .to seismically adverse conditions in the future.

Mild surface,corrosionwas found in suction pit. It was judged not to be a seismic concern. However, a CR has,been initiated (CR519024) to document this issue and to monitor and track to ensure any potential future corrosiondoes not create an,adverse seismic condition.

3. Based on a visual inspection from the floor, do the cable/conduit YS NEI U-I N/AD 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 Y9 NE] UD- N/AEI interactions with other equipment in the area (e.g., ceiling tiles and lighting)?,

'If the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area selected should be described.

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 32 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 5 Status: Y[K NEI UD-]

Area Walk-By Checklist (AWC)

Location: Bldg. INTAKE Floor El. 111 Room, Area, PumP Room

5. Does it appearthat the area is free of potentially adverse seismic YN NEI UE- N/AEJ interactions that could cause flooding or spray in the area?
6. Does it appear that the area is free of potentially adverse seismic YN NEI Ut] N/At]

interactions that could cause a fire in the area?

7. Does it appear that the area is free of potentially adverse seismic YZ NEI Ut] N/At]

interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

A broken name plate was found in the area,2E1]1-F205C.A CR has been initiatedto fix this issue (CR519050). It is not a seismic concern.

8. Have you looked for and found no other seismic conditions that could YI NEI Ut]

adversely affect the safety functions of the equipment in the area?

Comments (Additional pages may be added as necessary)

None.

Evaluated by: WESLEY WILLIAMS 7 Date: 9/12/2012 KURSAT KINALI  ! 9/12/2012 Page 33 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 5 Status: Y[ NEI Ur]

Area Walk-By Checklist (AWC)

Location: Bldg. INTAKE Floor El. 111 Room, Area1 Pump Room Photographs Page 34 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 4 of 5 Page 35 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 5 of 5 Page 36 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Status: Y-El Sheet NZ IU[-]of 4 Area Walk-By Checklist (AWC),

Location: Bldg. REACTOR Floor El. 158 Room, Area1 Standby Gas Treatment Room Instructions for Completing Checklist This checklist maybe 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 ofjudgments 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 YEI NZ UEI N/AEI-potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

One of the floor base plates supportingthe duct (coming to room through penetration I T43-H527J) has one anchormissing as shown in the attachedpicture. Also, one of the wall supports for,Unistrut member has a bolt missing (CR513948).

2. Does anchorage of equipment in the area appear to be free of significant Y[D NE UE- N/AEl degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit YI, NEI U[ N/AE 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 YN NEI UEi N/AEl interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Lighting may swing duringa seismic event and touch thefire protection line. However, FP line is close in elevation to the top of the light as can be seen in the attachedpicture, it wasjudged that.it would not reach to enough momentum to damage the FP line.

I If the room in which the SWELitem is located is very large (e.g., Turbine Hall), the area selected should be described.

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 37 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 4 Status: YE NO U['-]

Area Walk-By Checklist (AWC).

Location: Bldg. REACTOR Floor El. 158 Room, Area' Standby Gas Treatment Room

5. Does it appear that the area is free of potentially adverse seismic Y0 NO. UD N/AE]

interactions that could cause flooding or spray in the area?

6. Does it appear that the area is free of potentially adverse seismic YO NDI UL N/AD interactions thatcould cause a fire in the area?
7. Does it appear that the area is free of potentially adverse seismic, YZ NEI ULI N/AEl interactions 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 YN NEI UD adversely affect the safety functions of the equipment in the area?

Comments (Additional pages may be added as necessary)

Roof leakage problems have been observed due to stains on the walls. It does not affect the anchors of the equipment on the walls. Previous CRs have been written on this issue and actions were taken to stop the leakage. The stains on the walls are from earlieroccurrences.

Evaluated by: Kursat.Kinali Date:, 917/2012 Mike Steele 9171/2012 Page 38 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 4 Status: YD-1 NO U0IJ Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 158 Room, Area' Standby Gas Treatment Room Photographs Page 39 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 4 of 4 Page 40 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet I of 3 Status: Y] N[-] U'-

Area Walk-By Checklist (AWC)

Location: Bldg. YARD Floor El. 117 Room, Area' Unit 1 Division 1 Yard Pit Instructions for Completing Checklist This checklist may be used to document the results of theArea Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results ofjudgments 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 YN NEI U0I N/A[]

potentially:adverse seismic conditions (if visible without necessarily opening cabinets)?

208 Volts AC box has 1 missing screw in the back and two on the front cover. SWEs judged this not to be a potentiallyadverse,seismic condition due to light weight. However, CR525477 was initiatedto replace these screws.

2. Does anchorage of equipment in the area appear to be free of significant Y0 NFJ UEJ N/AO degraded conditions?

Equipment supportsin the area have surface corrosion. This was judged not to be a potentiallyadverse seismic condition by the SWEs.

3. Based on a visual inspection from the floor, do the cable/conduit YZ NEI UFJ N/AEC 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 YZ NEI UC- N/AEi interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

1 If the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area selected should be described.

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 41 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: YZJ NF] Ur--]

Area Walk-By Checklist (AWC).

Location: Bldg. YARD Floor El. 11-7 Room, Area, Unit 1 Division 1 Yard Pit

5. Does it appear that the area is free of potentially adverse seismic YS NEI Ul- N/All interactions that could cause flooding or spray in the area?
6. Does it appear that thearea is free of potentially adverse seismic YN NEI UD N/AUJ interactions that could cause a fire in the area?

7.. Does it appear that the area is free of potentially adverse seismic YZ NEI UL N/AEI interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

Trash bag wasfound in the pit,andjudged not to be a potentially adverse seismic condition by the SWEs.

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

Comments (Additional pages may be added as necessary)

None.

Evaluated by: Kursat Kinali Date: 9/27/2012 Wesle Williams. 9/27/2012 Page 42 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status: YZ N[] UL-]

Area Walk-By Checklist (AWC) g11 Bldg. YARD Location: Floor El. Room, Area1 Unit I Division I Yard Pit Photogrraphs Page 43 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 4 Status: Y[ NEI U--

Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130 Room, Area' GENERATOR ROOM 1A 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 YE NO UO N/AU potentially adverse seismic: conditions (if visible without necessarily opening cabinets)?

A 1 diameter pipe is supported with cantileveredangle from a plate off the east wall,with two bolts insteadof three, which was typically noticed. One supporthad a bolt at the centerline of the plate on the bottom and the second bolt was at the top right corner. It was judged to be seismically adequate.

Roof drainRD-1DGB-8 (6131F-2223)spans from the concrete roof to the south wall of the room at penetration 1 Y43-H083D. This pipe is 8" in diameterand approximately 18'-0" in span, which is only supported at the roof and wall penetrations. It was judged to be seismically adequate. Piping supported within 19' is seismicallyacceptableas outlined in EPRI 1012023, Table 3-1. See picture 1.

2. Does anchorage of equipment in the area appear to be free of significant YN NEI U- N/AU' degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit YZ NEI UD N/AO 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 YCK NEI U- N/AI interactions with other equipment in the area (e.g&, ceiling tiles and lighting)?

There is a light .that has a 2" separation with a tube track carrying instrument tubing during a seismic event. The tubing services air compressorvalves 1R43-F1 15A through 1 18A and cont, switches. It was judged to be not a seismic concern as the light framing is not heavy and Would contact the tube track only, not the tubing. See picture 2.

1If the room in.which the SWEL item is located is very large (e.g., Turbine.Hall), the area selected should be described.

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 44 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 4 0

Status: YZ NEI U-Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130 Room, Area' GENERATOR ROOM 1A

5. Does it appear that the area is free of potentially adverse seismic Y0 NEI UC N/AEI interactions that could cause flooding or spray in the area?
6. Does it appear that the area is free of potentially adverse seismic YM NFI UIJ N/AEl interactions that could cause a: fire in the area?
7. Does it appear that the area is-free of potentially adverse seismic YZ NEI UE] N/AEJ interactions 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 YM NEI UI1
adversely affect the safety functions of the equipment in the area?

Comments (Additional pages may be added as necessary)

None.

Page 45 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 4 Status: Y[ NE] U[-]

Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130 Room, Area' GENERATOR ROOM 1A Photographs Picture 1: Unsupported Drain Pipe (Generator Room IA)

Page 46 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 4 of 4 2: Light Adjacent to Tube Track (Generator Room IA)

Page 47 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet I of 3 Status: Y[ N- 'UL-Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 180 Room, Area' Control Room Roof Behind Compressors 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 maybe used to record the results ofjudgments 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 YN NEI UC- N/Al]

potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant YE N[I ULI N/All degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit YZ NEI UEI N/AU 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 YI NE UE] N/AlD interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

If the room in which the SWEL item is located is very large (e.g.,Turbine Hall), the area selected should be described.

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 48 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: Y[N NE UI--

Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 180 Room, Area' Control Room Roof Behind Compressors

5. Does it appear that the area is free of potentially adverse seismic Y91 NEI UO N/ADl interactions that could cause flooding or spray in the area?
6. Does it appear that the area is free of potentially adverse seismic Y0 NO UF- N/AD interactions that could cause a fire in the area?
7. Does it appear that the area is free of potentially adverse seismic YN N' UD N/AD interactions 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 YZ NEI UD adversely affect the safety functions of the equipment in the area?

Comments (Additional pages may be added as necessary)

The extent of the Area Walk-By forthis component from column line TA west to component 1Z4 1-FO1 7A and from column line T 11south to T12 Evaluated by: John McFarland Date: 09/10/2012 Jeff Horton Q/ 4'/ý Z 09/10/2012 Page 49 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status: YN N[-] U[]

Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 180 Room, Area1 ControlRoom Roof Behind Compressors Photographs N/A Page 50 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 4 Status: Y[ NE] U[-

Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 119 Room, Area' Unit 1 Torus Room Bay 5 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 ofjudgments 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 YO NFI UCI N/A[l potentially adverse seismic conditions (if visible without necessarily opening cabinets)?
2. Does anchorage of equipment in the area appear to be free of significant Y[ N[I UC] N/AEl degraded conditions?

There is mild surface oxidation on a Unistrut conduit support above 1E41-F111. Since oxidation is only on the surface, the bolts are not degraded Therefore,judged not to be a concern.

3. Based on a visual inspection from the floor, do the cable/conduit YN NEI UO NIAl raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cabletrays appear to be inside acceptable limits)?

4, Does it appear that the area is free of potentially adverse seismic spatial YN NEI UEi N/A'-

interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

'If the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area selected should be described.

This selected area should bebased on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 51 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 4 Status: YN Nr'1 U--

Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 119 Room, Area' Unit I Torus Room Bay 5

5. Does it appear that the area is free of potentially adverse seismic YN NEI ULI N/Af interactions that could cause flooding or spray in the area?
6. Does it appear that the areais free of potentially adverse seismic YN NEI UQI N/AE interactions that could cause a fire in the area?
7. Does it appear that the area is free of potentially adverse seismic YU NEI UI- N/A[

interactions 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 YO NEI U--

adversely affect the safety functions of the equipment in the area?

Comments (Additional pages may be added as necessary)

There are a number ofpopped screWs on the insulationjacketsfor several of the pipes near IE41-F11. However, there are enough remainingscrews in the insulationjacket to provide adequate supportfor the insulationandprevent any separation. Therefore, it is judgednot be apotentially adverse seismic condition.

Evaluated by' John McFarlan Date: 09/17/2012 Jeff Horton 09/1712012 Page 52 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 4 Status: YV NL- U'-

Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 119 Room, Area' Unit I Torus Room Bay 5 Photographs Figure 1- Surface Corrosion (Unit I Torus Room Bay 5)

Page 53 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 4 of 4 Figure 2 - Popped Insulation Jacket Screws (Unit I Torus Room Bay 5)

Page 54 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 5 Status: YZ NF- UL]

Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 150 Room, AreaW ROOF (SOUTH END)

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 YG3 NEI U- N/AD potentially adverse seismic conditions (if visible without necessarily opening cabinets)?
2. Does anchorage of equipment in the area appear to be free of significant YZ NEI U- N/AO degraded conditions?

Concretebearingpad of storage tank locatedeast of 1X4 1-CO08A exhibits spalledcorners. This is typical on all four ends of the pads.

Grout pads are not structural. The bearingplate is well supported and the bolts fully extend into the concrete below the grout. The grout is not consideredin the bolt capacity. Therefore, the concrete pads are judged to be seismicallyadequate.

3. Based on a visual inspection from the floor, do the cable/conduit YN ND U- N/AD 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 YR ND U- N/AD interactions with other equipment in the area (e.g., ceiling'tiles and lighting)?

If the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area selected should be described..

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 55 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 5 Status: YZ NF- uMi Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 150 Room, Area' ROOF (SOUTH E TIA

5. Does it appear that the area is free of potentially adverse seismic YO NEI U[I N/AU interactions that could cause flooding or spray in the area?

x

6. Does it appear that the area is free of potentially adverse seismic Y-I NI UE] N/AU interactions that could cause a fire in the area?

x

7. .Does it appear that the area is free of potentially adverse seismic YO NEU UU N/AEU interactions 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 Y-I4- U-adversely affect the safety functions of the equipment in the area?

There is a U bolt support for a fire protection pipe (see photograph 1) which is not securely fastened to the angle support. The pipe is supported vertically and the angle support and the U bolt are in place to prevent the pipe from moving off the support laterally. Vertical seismic accelerationsare not greatenough for the bolt to be lifted out of place.

It is judged to be seismicallyadequate. CR 523486 has been written to replace the missing/unsecurednuts.

There are missing screws to cover plates of 1X41-COO6E and 1X41-C002C (see photographs2 and3). The cover plates have 3 screws which arejudged to be adequate to support the plate. CR 523328 has been written to replace the missing screws.

There is an unfastened screw on the housing enclosure for 1X41-C008C. The housing is supportedby 3 Other screws which are adequate to secure it in place.

Comments (Additional pages may be added asnecessary)

None.

Evaluated by: Juan Vizcava Date: 09/24/2012 Patrick Kelly 09/24/2012 Page 56 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 5 Status: Y[ N[-] ur-Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 150 Room, Area' ROOF (SOUTH END)

Photographs 1: U Bolt Not Properly Tightened (Diesel Building Roof - South End)

Page 57 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 4 of 5 2: Missing Screw to Cover Plate (Diesel Building Roof - South End)

Page 58 of 184

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 5 of 5 3: Missing Screw to Cover Plate (Diesel Building Roof - South End)

Page 59 of 184

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