NL-12-2268, Edwin I. Hatch, Unit 1, SNCH082-RPT-01, Ver. 1.0, Seismic Walkdown Report for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, Part 10 of 11

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Edwin I. Hatch, Unit 1, SNCH082-RPT-01, Ver. 1.0, Seismic Walkdown Report for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, Part 10 of 11
ML12355A058
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: ML12355A058 (58)
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Text

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

Bldg. Intake Roof Floor El. 126' Room, Area, Pump Room Roof 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)?

YN NEI UD-1 N/ADI 2. Does anchorage:

of equipment in the area appear to be free of significant Y0 NEI UD N/ADI 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)?Missing washers for the fasteners to the concrete on some of the three housing units outside. Judged not to be a seismic issue since the washers are not structural items and are not vital part of an anchor for seismic performance.

Washers are not required for this installation.

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)?

YZ ND UD- N/ADI YN NEI UrD N/Ar-& If the room in which the SWEL item is-located is very large (e.g., Turbine Hall), the~area selected shouldbe described.

This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.Page 60 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet. 2 of 3 Status: YZ Ni] U-]Area Walk-By Checklist (AWC)Location:

Bldg. Intake Roof Floor El. 126' Room, Area' Pump Room Roof 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?7. Does it appearthat 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)?

YN NEI UF' N/ADl YS NEI U .N/Afl YN Nn U[] N/ArU 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?YN Nn U0 Comments (Additional pages may be added as, necessary)

Side covers of the housing for 1X41-CO09B has 8 screws; however, 1X41-CO09C has 6 screws.Capacity of 6 screws is judged adequate for seismic loads. Therefore, this is not a seismic concern. The side covers are not part of the structure and are not in the load path. Six screws are more than adequate due to light weight of side cover.Evaluated by: Kursat Kinali Date: 9/17/2012 Wesle Williams Aj~. 9/17/2012 y/Page 61 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status: YZ N[] u[]Area Walk-By Checklist (AWC)Location:

Bldg. Intake Roof Floor El. 126' Room, Area' Pump Room Roof Photographs Page 62 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 3 Status: Y[ NEI U[]Area Walk-By Checklist (AWC)Location:

Bldg. RB Floor El. 116' Room, Area' NWDiagonal R005 (whole 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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

YO NEI U01 N/AE 2. Does anchorage of equipment in the area appear to. be free of significant YE, NE UE" N/AE 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)?YZ NEI Ui1 N/AE 4. Does it appear that the area is free of potentially adverse seismic spatial Yo NEI UE- N/AE 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 63 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: YZ; Nn U-]Area Walk-By Checklist (AWC)Location:

Bldg. RB Floor El. 116' Room, Area, NW Diagonal R005 (whole room)5. Does it appear that the area is free of potentially adverse seismic YN NEI UI N/ACI 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?7. Does itappear 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)?

One of the bolts for a nearby conduit clamp is missing. Since the conduit is small and there are adjacent supports within lOft of the support, the load on the support is minimal. It was judged as not a seismic issue. A CR has been initiated to place the missing bolt (CR513284).See attached picture.8. Have you looked for and found no other seismic conditions that. could adversely affect the safety functions of the equipment in the area?Y[R NCI U['I N/A[']YN N[E U[-C N/ACF YZ NEI UEl Comments. (Additional pages may be added as necessary)

None.Evaluated by: Ktirsat Kinali" " i Date: 9/6/2012 Wesley Williams 9/6/2012 Page 64 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status: YN NEI UF-Area Walk-By Checklist (AWC)Location:

Bldg. RB Floor El. 116' Room, Areal NW Diagonal R005 (whole room)Photographs Page 65 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 3 Status: YN NF[ U[]Area Walk-By Checklist (AWC)Location:

Bldg. REACTOR Floor El. 106 Room, Area' SE 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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

YN NEI U-- N/AEl 2. Does anchorage of equipment in the area appear to be free of significant YZ NE]. UE] N/AL]degraded conditions?

There is a pair of cantilevered Unistrut conduit supports that are rotated slightly from the horizontal at the connection.

The Unistrut is.lightly loaded and the rotation is not significant since there has been no member deformation.

Therefore, the members are judged to be seismically adequate.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 cabletrays appear to be inside acceptable limits)?YN NEI U0- N/A-]4. Does it appear that the area is free of potentially adverse seismic spatial YN NEI U-- 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 66 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: YE NE] U[]Area Walk-By Checklist (AWC)Location:

Bldg. REACTOR Floor El. 106 Room, Area' SE Diagonal 5. Does it appear that the area is free of potentially adverse seismic Y23 N[I U'- 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 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)?

YN NO UD N/AD YED ND U- N/AD 8. Have you looked for and found no other seismic conditions that could YZI NEI U-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: 09/06/2012 Jeff Horton Qx // 09/06/12012 Page 67 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status: Y21 N[n] UF]Area Walk-By Checklist (AWC)Location:

Bldg. REACTOR Floor El. 106 Room, Area 1 SE Diagonal Photographs Figure 1 -Rotated Unistrut Members (SE Diagonal)Page 68 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 3 Status: YZ Nr-' UI-Area Walk-By Checklist (AWC)Location:

Bldg. REACTOR Floor El. 158 Room, Area' Standby Gas Treatment 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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Shear cracks are present on the top corner of the room door as shown-in the attached picture. One base plate for a conduit going to 120V A-C cabinet has an anchor close to this crack. Since the loads are small on the baseplate near the crack, the support is still seismically adequate.However, a CR has been initiated (CR513954).

to monitor this crack so that it does not reach to. the anchors of this support or other supports in the area.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)?YO NCI UC N/AC YZ NO U- N/AC Y0 NO UI N/AC 4. Does it appear that the area is free of potentially adverse seismic spatial YO NCI UC N/AC interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

'Ifthe 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 69 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: YM N[- UfM 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 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?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)?

YN NEI UE- N/Ar-YZ NEI Uil N/A[-1 Y2 NEI U0 N/AU 8. Have you looked for and found no other seismic; conditions that could YN NEI Ur-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 earlier occurrences.

Evaluated by: Kursat Kinali Date: 9/7/2012 Mike Steele .. 9/7/2012 Page 70 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status: YZ Nn- U[-Area Walk-By Checklist (AWC)Location:

Bldg. REACTOR Floor El. 158 Room, Area 1 Standby Gas Treatment Room Photographs Page 71 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet I of 4 Status: YZ NEI UL--Area Walk-By Checklist (AWC).Location:

Bldg. CONTROL Floor El. 130 Room, Area 1 TE-T12 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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

YN NEI UEI N/AE 2. Does anchorage of equipment in the area appear to.be free of significant YO NEI UE] N/A[J 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)?There is a conduit in the room mounted such that there is approximately 0" to 1/16" gap between it and the adjacent RHVAC duct, and the conduit has a 20' unsupported span. The small gap is located near a support and a bend for the HVAC system that is located at the duct entry into the room, so the duct is very rugged at that location.

In addition, discussion with the System Engineer has determined that the duct is not safety related Therefore, damage to this duct or loss of duct pressure boundary is acceptable provided'the duct does not fall down and damage safety related equipment in the room. The SWEs judge that the impact will not be significant, so there is no potentially adverse seismic condition.

YN NEI U0 N/AE['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 72 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 4 Status: Y[ U[Area Walk-By Checklist (AWC)Location:

Bldg. CONTROL Floor El. 130 Room, Area' TE-T12 4. Does it appear that the area is free of potentially adverse seismic spatial YI Ni] UE N/A[]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?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)?

YN NEI UE] N/AE]YI NEI UE] N/AE]YZ NEI UE] N/AE]8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?Y0 NEI UE-Comments.(Additional pages may be added as necessary)

None Page 73 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 4 Status: YN NEi UI-Area Walk-By Checklist (AWC)Location:

Bldg. CONTROL Floor El. 130 Room, Area' TE-T12 Evaluated by: John McFartand Date: 09/10/2012 Jeff Horton 09/10/2012 Page 74 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 4 of 4 Status: Y[ N[- U[]Area Walk-By Checklist (AWC)Location:

Bldg. CONTROL Floor El. 130 Room, Area' TE-T12 Photographs Figure 1 -Adjacent Conduit and HVAC Ductwork Page 75 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 8 Status: Y-] NO U[-Area Walk-By Checklist (AWC)Location:

Bldg. CONTROL Floor El. 112 Room, Area' C029 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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

The monorail support in the northwest corner of the ceiling has a large crack with evidence of oil leakage from above approximately 1 "from the anchor bolt (CR 513992). The.location and size of the crack is sufficient to reduce the capacity of the anchor boit for the crane (CR 519998). There are several other cracks near conduit and equipment support anchors near the north and west walls that will reduce the anchor capacities.

The crack is a known condition and is being tracked by CR 2008100666.

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

The leakage and stainingfrom the crack leaves doubt as to the existence of corrosion in. the bolts inside the concrete at these crack locations.

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)?YE- NZ UI- N/AE3 YE] NZ UEI N/AEI YN NEI UE] N/AE]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 76 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 8 Status: Y] NE U[]Area Walk-By Checklist (AWC)Location:

Bldg. CONTROL Floor El. 112 Room, Area' C029 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?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 (eg., scaffolding, lead shielding)?

YS NEI UEJ N/AE YN NE UE N/A[I YZ NEI UQ N/AE YM NEI UEI N/AEl 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?Y0 NEO UE Comments (Additional pages may be added as necessary)

None: Page 77 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 8 Status: YE- NE U0--]Area Walk-By Checklist (AWC)Location:

Bldg. CONTROL Floor El. 112 Room, Area' C029 Evaluated by: John Mc"arland Date: 09/06/2012 Jeff Horton 2 09/06/2012 Page 78 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 4 of 8 Status: YE] NZ UE-Area Walk-By Checklist (AWC)Location:

Bldg. CONTROL FloorEl. 112 Room, Area' C029 Photographs Figure 1 -Crack in Northwest Ceiling (C029)Page 79 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 5 of 8 Figure 2 -Crack in Northwest Ceiling near Crane Support (C029)Page 80 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 6 of 8 Figure 3 -Crack in Northwest Ceiling near Wall (C029)Page 81 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 7 of 8 Figure 4 -Crack in Ceiling near Tube Steel Support (C029)Page 82 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 8 of 8 Figure 5 -Crack in Ceiling near Unistrut Support (C029)Page 83 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 3 Status: YV N[l] U[]Area Walk-By Checklist (AWC)Location:

Bldg. Control Floor El. 112 Room, Area' Station Battery Room 1B..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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

YZ NO UO N/A-l 2. Does anchorage of equipment in the area appear to be free of significant YN Nl Ur- N/AE]degraded conditions?

3. Based on a visual inspection from the floor, do the cable/conduit raceways and IIVAC 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)?YER NE- U[ N/AE3 4. Does it appear that the area is free of potentially adverse seismic spatial YZ NE UI- N/Al interactions with other equipment in the area (e.g;,. ceiling tiles and lighting)?

If the room in which theSWEL 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 84 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: YN NEI UI]Area Walk-By Checklist (AWC)Location:

Bldg. Control Floor El. 112 Room, Area' Station Battery Room 1B 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?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)?

Y.9 NEI] U N/Ar Y0 NEI U[-] N/AN YZ NEI U- N/Al 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?Y NO- U-Comments (Additional pages may be added as necessary)

None Evaluated by: John McFarland Date: 09/13/2012 Jeff Horton Aelý 09/13/2012 Page 85 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS

.NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status: YZ NE] U[]Area Walk-By Checklist (AWC)Location:

Bldg. Control .Floor El. 112 Room, Area' Station Batter, Room 1B Photographs:

N/A Page 86 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 3 Status: YV NL-- U--Area Walk-By Checklist (AWC)Location:

Bldg. Diesel Floor El. 130' Room, Area, Battery 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 ofjudgments 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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Fuse. Monitor Box, 1H21-P291A was observed to not be properly supported laterally as shown in the attached picture. CR 525130'was written to adequately laterally support the box at the four support points.The box is seismically adequate to withstand adverse conditions, since it will displace laterally, but there is not enough room for it to become dislodged.

2. Does anchorage of equipment in the area appear to be free of significant degraded .conditions?
3. Based on a visual inspection fromrthe 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)?YN NEI UE- N/AE3 YN NEIl UI- N/Af YZ NF- U- N/Afl 4. Does it appear that the area is free of potentially adverse seismic spatial YN NEI U0 N/AO-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 87 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: YE N-] U--Area Walk-By Checklist (AWC)Location:

Bldg. Diesel Floor El. 130' Room, Area 1 Battery Room 1A 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?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)?

YN NE UEI N/AE YZ NEI UE- N/AE YO NE UE] N/AE 8. Have you looked for and found no other seismic conditions that could YIN 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 Vizcava Date: 9/26/2012 Patrick Kelly 9/26/2012 Page 88 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. Diesel Floor El. 130' Room, Area, Battery Room 1A Photographs Misinlock~

1: Missing Bolts (Battery Room IA)Page 89 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 4 Status: YN NEI UD-Area Walk-By Checklist (AWC)Location:

Bldg. DIESEL Floor El. 130 Room, Area, Diesel Generator Battery Room 18 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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

YN NEt Ut] N/At-2. Does anchorage of equipment in the area appear to be free of significant YZ NEI Ut N/AF]degraded conditions?

There is mild surface oxidation on the anchor bolts for two Unistrut channels.

Since oxidation is only on the surface, the bolts are notýdegraded.

Therefore, judged not to be a concern, 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)?YZ Nt] Ut] N/At 4. Does it appear that the area is free of potentially adverse seismic spatial Y9 NEt Ut] N/At 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 90 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 4 Status: YZ NE] UL-Area Walk-By Checklist (AWC)Location:

Bldg. DIESEL Floor El. 130 Room, Area 1 Diesel Generator Battery Room 1B 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?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)?

YZ. NEI U-] N/Al]YI NE] UE' N/AL]YN NEI UE- N/Al]8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions.

of the equipment in the area?YR N[I] UD-Comments (Additional pages may be added as necessary)

None Evaluated by: John McFarland Date: 09/19/2012 Jeff Horton J/j09/1912012 Page 91 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 4 Status: YZ N[] U[-Area Walk-By Checklist (AWC)Location:

Bldg. DIESEL Floor El. 130 Room, Area, Diesel Generator Batteg Room 1 ..Photographs Figure 1 -Oxidation on First Unistrut Channel Anchors (Diesel Generator Battery Room I B)Page 92 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 4 of 4 Figure 2 -Oxidation on Second Unistrut Channel Anchors (Diesel Generator Battery Room 1 B)Page 93 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 3 Status: YZ N[] U"-Area Walk-By Checklist (AWC)Location:

Bldg. DIESEL Floor El. 130 Room, Area' BATTERY ROOM IC Instructions for Completing Checldist 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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Fuse box monitor 1H21-P293A is supported by strut top and bottom.There are U shaped plates which support the strut, but there is no bolt connecting the U plates to the strut (see photograph

1) (typical at four corner of box). The box and strut will not fall from the plate supporting it since lateral translation will cause the edge of the box to hit the plate prior to the strut being dislodged from it. However, to reduce motion of the box, the U plates need to be secured to the strut. CR 525130 has been written to install bolts for the U plates.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)?YIZ NO UI N/A[]YN NEI U-1 N/AH YN NEI UHI N[AH]4. Does it appear that the area is free of potentially adverse seismic spatial YO NE U0- N/AHl 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 94 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: YZ Nn U[-]Area Walk-By Checklist (AWC)Location:

Bldg. DIESEL Floor El. 130 Room, Area' BATTERY ROOM 1C 5. Does it appear that the area is free of potentially adverse seismic YS NElI UD" 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 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)?

Y0 NDI UD] N/AD Y0 ND U-] N/AD 8. Have you looked for and found no other seismic conditions that could YIN NEI UD adversely affect the safety functions of the equipment in the area?Comments (Additional pages may be added as necessary)

None.Evaluated by:Juan Vizcava Date: 09/25/2012 Patrick Kelly 09/25/2012 Page 95 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status: YM NF1 U]Area Walk-By Checklist (AWC)Location:

Bldg. DIESEL Floor El. 130 Room, Area' BATTERY ROOM 1C 1: Missing Bolts for Strut to U Plate Connection (Diesel Battery Room IC)Page 96 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet I of 3 Status: YN N-1 U[--Area Walk-By Checklist (AWC)Location:

Bldg. CONTROL Floor El. 112 Room, Area, RPS Battery 1A 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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Y23 NEI U0 N/AU 2. Does anchorage of equipment in the area appear to be free of significant YO NE] UF-- N/A[]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)?YER NM U-1 N/AU 4. Does it appear that the area is free of potentially adverse seismic spatial YER NEIl UL N/AU'interactionswith 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 97 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: YZ Nn- U[-]Area Walk-By Checklist (AWC)Location:

Bldg. CONTROL Floor El. 112 Room, Area' RPS Battery 1A Room 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?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)?

Y0 NO] Url N/AC YER NEI UC- N/AC YZ NC UC- N/AC-8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions oftheequipment in' the area?YN NEI U--Comments (Additional pages may be added as necessary)

None Evaluated by: John McFarland Date: 09/06/2012 Jeff Horton < "-4 09/0612012

!/P Page 98 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status:v Y[ NO ur Area Walk-By Checklist (AWC)Location:

Bldg. CONTROL Floor El. 112 Room, Area' RPS Battery 1A Room Photographs N/A Page 99 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet I of 3 Status: YN NF1 U[]Area Walk-By Checklist (AWC)Location:

Bldg. CONTROL Floor El. 112 Room, Areae RPS Battery 1B 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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

YN NEI UC] N/AFJ 2. Does anchorage of equipment in the area appear to be free of significant YZ NCl UC] N/ACi 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 adequateand fill conditions of cable trays appear to be inside acceptable limits)?YZ NCI UCl N/AC]4. Does it appear that the area is. free of potentially adverse seismic spatial YO NCI UC- N/AC interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

'Ifthe 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 100 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: Y[ NEI U[-Area Walk-By Checklist (AWC)Location:

Bldg. CONTROL Floor El. 112 Room, Area 1 RPS: Battery 1B Room 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 ofpotentially adverse seismic interactions .that could cause a fire inthe 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)?

YO NDI UD N/AD YM NDI UD N/AD YN NDI UD N/AD 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?YN ND UD Comments (Additional pages may be added as necessary)

None Evaluated by: John McFarland Date: 09/10/2012 Jeff Horton 09/10/2012 Page 101 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status: YZ NO- U[]Area Walk-By Checklist (AWC)Location:

Bldg. CONTROL Floor El. 112 Room, Area 1 RPS Battery 1B Room Photographs N/A Page 102 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 4 Status: YH NEI UD-]Area Walk-By Checklist (AWC)Location:

Bldg. DIESEL Floor El. 130 Room, Area' DIESEL GENERATOR ROOM 1B 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)?

YN NEI UE] N/All 2. Does anchorage of equipment in the area appear to be free of significant YE NE UE] N/AEl 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)?There are three (3) struts which support a 1 1/4" diameter conduit (ESS 11257) vertically along the south wall of the room (see photographs 1 and 2). The bottom strut appeared to not be anchored to the wall, while the top two are visibly off the wall. However, upon further inspection, there is one (1) anchor fastening the bottom support, which is behind the conduit clamp. It is determined that the one anchor is sufficient to support the conduit as it is located in the center of the strut's length and is not eccentrically loaded by the conduit. The conduit turns horizontal and is supported approximately 8'-0" from the bend. It is judged to be seismically adequate.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)?

YZ NE U]] N/All YZ NEI U] N/AD' 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 103 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 4 Status: Y[, NEI U[I Area Walk-By Checklist (AWC)Location:

Bldg. DIESEL Floor El. 130 Room, Area 1 DIESEL GENERATOR ROOM 1B 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?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)?

YZ NEl UF N/A[l YN NEI U-- N/A]YED NEI Ul N/AD 8. Have you looked for and found no other seismic conditions that could YN NO U-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: 09/12/2012 Patrick Kelly 09/1212012 Page 104 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 4 Status: YV N-- U--Area Walk-By Checklist (AWC)Location:

Bldg. DIESEL Floor El. 130 Room, Area' DIESEL GENERATOR ROOM 1B Photographs 1: Conduit ESSI 1257 with 3 Supports (DG Room IB)Page 105 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 4 of 4 2: Conduit ESS 11257 Elevation with Support for Horizontal Run (DG Room IB)Page 106 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 2 Status: YC NO] U-]Area Walk-By Checklist (AWC)Location:

Bldg. DIESEL Floor El. 130 Room, Area' DIESEL GENERATOR ROOM IC 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 beused 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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Y23 NEI UE1 N/AlQ 2. Does anchorage of equipment in the area appear to be free of significant YZ NO UF-] NIAE]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)?YN NEI UE- N/AD 4. Does it appear that the area is free of potentially adverse seismic spatial YO NE UF' 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 107 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' DIESEL GENERATOR ROOM IC 5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray ýin the area?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)?

YER NC U[] N/A]YN NEI U[-] N/AD YZ NEI U-1 N/AE]8. Have you looked for and found no other seismic conditions that could Y0. NE-I Ul adversely affect the safety functions of the equipment.

in the, area?Comments (Additional pages may be added as necessary)

None.Evaluated by: Juan Vizcava Date: 09/112012 Pick---y 09112012 Page 108 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet I of 3 Status: Y[] No UE]Area Walk-By Checklist (AWC)Location:

Bldg. REACTOR Floor El. 130 Room, Area' Between Grids R2-R5 and RJ-RA 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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

YN NEI UE] N/AE]2. Does anchorage of equipment in the area appear to be free of significant Y0 NE] UEr N/AE]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)?Transformer JRlI-S020 bolted to channel with minimal threaded engagement of bolts and nuts. Transformer is located behind MCC 1R24-S012 and attached to the north wall. A CR was initiatedfor this purpose (CR516325).
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)?

YE] NZ UE] N/AE]YN NEI UE1 N/AE]'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 109 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 3 Status: YE] NO uF]Area Walk-By Checklist (AWC)Location:

Bldg. REACTOR FloorEl. 130. Room, Area, Between Grids R2-R5 and RJ-RA 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?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)?

TWo nitrogen bottles are not secured appropriately.

One ofthe two bottles does not have the cap on. These bottles are located inside CRD area. A CR has been initiated (CR514831).

See attached pictures for details.YM NE] U-] N/AU YZ NEI UE] N/A[C YE NZ UC N/AEl 8. Have you looked forand found no .other seismic conditions that could YN NE UC1.adversely affect the safety functions of the equipment in the area?Comments (Additional pages maybe added as necessary)

None.Evaluated by: Kursat Kinali Date: 9/1012012 Wesley Williams 9/10/2012 Page 110 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 3 Status: Y[-] U[-]Area Walk-By Checklist (AWC)Location:

Bldg. REACTOR Floor El. 130 Room, Area 1 Between Grids R2-R5 and RJ-RA Photographs Page 111 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 1 of 6 Status: Y[ N[:] U[]Area Walk-By Checklist (AWC)Location:

Bldg. REACTOR Floor El. 158 Room, Area' Near Equipment Hatch (CL R8)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 potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

YZ NO] Ut] N/At 2. Does anchorage of equipment in the area appear to be free of significant YE NEI UI] N/A"]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)?YZ NEI Ut] N/At]4. Does it appear that the area is free of potentially adverse seismic spatial YN Nt] Ut N/At 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 112 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 2 of 6 Status: Y[ NE-] U[]Area Walk-By Checklist (AWC)Location:

Bldg. REACTOR Floor El. 158 Room, Area' Near Equipment Hatch (CL RB)5. Does it appear that the area isfree. of potentially adverse seismic interactions that could cause flooding or spray in the area?6. Does it appear that the areais 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)?

Y9 NIJ U[:i NIAi YZ NO UOI N/AlO YO N[ U-] N/AE3 8. Have you looked for and found no other seismic conditions that could YZ NEI UE-adversely affect the safety functions of the equipment in the area?Comments (Additional.

pages may be added as necessary)

1. Two bottle caps were discovered sitting loose on the floor next to a restrained bottle near 1L48-1R33 RWC.Pump Room IA (CR 515103). The caps were judge to not be a seismic issue since they are small and not. near any sensitive equipment that could be impacted.2. An abandoned.Handy-Cone was found sitting in the Hear-Here enclosure near the RB MG Set Room B at Column Line R13. The Handy-Cone was judged to not be a seismic issue since the object is light and not near any sensitive equipment that could be impacted.3. A rolling ladderwas found tied off but not chocked near Column Line 13. Thecart is very light and is tied off.such that it will not be able to roll far enough to impact any sensitive equipment, so is not a seismic concern.Evaluated by: John McFarland Date: 09/06/2012 Jeff Horton 09/06/2012 Page 113 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 3 of 6 Status: YN NF' U[-]Area Walk-By Checklist (AWC)Location:

Bldg. REACTOR Floor El. 158 Room, Area, Near Equipment Hatch (CL R81 Photographs Figure 1 -Loose Bottle Caps (Reactor Bldg. EL. 158'-0", Near Equipment Hatch, CL R8)Page 114 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 4 of 6 Figure 2 -Loose Handy-Cone (Reactor Bldg. EL. 158'-0", Near Equipment Hatch, CL R8)Page 115 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 5 of 6 Figure 3 -Rolling Ladder (Reactor Bldg. EL. 158'-0", Near Equipment Hatch, CL R8)Page 116 of 184 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-01, VERSION 1.0 Sheet 6 of 6 Figure 4 -Rolling Ladder Tie-Off (Reactor Bldg. EL. 158'-W", Near Equipment Hatch, CL R8)Page 117 of 184

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