ML12356A408

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SNCH082-RPT-02, Ver. 1.0, Edwin I. Hatch, Unit 2 Seismic Walkdown Report for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, Part 10 of 11
ML12356A408
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-12-2269 SNCH082-RPT-02, Ver. 1.0
Download: ML12356A408 (57)
v • d • e


Text

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet I of 6 Status: YO N[: U[

Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 112 Room, Area1 TD-T13 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 ofthe 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)?

There is a crack in the concrete at the support for Conduit 2E21611 that appears to extend through the anchor bolt. The:

crack is a small surface crack and the anchor affected is in compression due to the, orientation of the support. Therefore, the crack will not affect the structural adequacy of the anchors and there is no potentially adverse seismic condition.

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

There appears to. be galvanic corrosion around the anchor bolts for the HVAC support 2Z41-F11J. Since the corrosion, is only on the surface, the anchors are not impacted Therefore, there is no potentially adverse seismic condition.

There is a loose nut on a:conduit support for Conduit 2E21611 (CR 519680), The support is lightly loaded and the affected bolt will be in compression due to the configuration of the support. Therefore, it is judged that the other three anchors have sufficient strength to restrain the support during a seismic event, so there is no potentially adverse seismic condition.

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

The cables for one of the battery racks and the HVAC unit overhead are extremely close to one another. The HVAC unit is very large and rigidly attached to the ceiling, so there will be very little movement of the component and will not have the potential to damage the battery cables. The impact is therefore judged not to be significant, so there is no potentially adverse seismic condition.

YZ NEI UII N/Ar-1 YZ NEI UEr N/AEl YN NEi U-] N/AU YZ NEI UEl N/AZ"

'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 orderof about 35 feet from the.SWEL item.

Page 74 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 6 Status: Y[9 N[M UM]

Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 112 Room, Area1 TD-T13

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)?

YE NO UE] N/AE YI NO UF-N/A-YZ NE U-N/AO

8. Have you looked for and found no other seismic conditions that could YZ 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: 09/18/2012 Jeff Horton 09/18/2012 Page 75 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 6 Status: YZ NEI] U[]

Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 112 Room, Areal TD-T13 Photographs Figure 1 - Surface Crack at Conduit Support on Wall (Unit 2 Control TD-T 13)

Page 76 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 6 Figure 2 -H-WVAC Galvanic Corrosion (Unit 2 Control TD-Ti 3)

Page 77 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 5 of 6 Figure 3 - Loose Nut on Conduit Support on Wall (Unit 2 Control TD-T13)

(Note: Vertical up is from left to right in picture)

Page 78 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 6 of 6 Figure 4-Battery Cable and IIVAC Spacing (Unit 2 Control TD-T 13)

Page 79 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet I of 3 Status: YZ N-- U-]

Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130 Room, Area' BATTERYROOMP2A, 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)?

YED NEI UL-N/AU

2. Does anchorage of equipment in the area appear to be free of significant YZ NEI UC" N/AU 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)?
4. Does it appear that the area is free of potentially ad verse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

YZ NE U[1 N/AU YZ NEI UEf N/AU 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 80 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 3 Status: YZ N['] url Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130 Room, Area' BATTERYROOM2A

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 UEI N/AE-YN NEI UI-N/AU YZ NEI Ur N/AU

8. Have you looked for and found no other seismic conditions that could YN NEI U-1 adversely affect the safety functions of the equipment in the area?

The west wall exhibited cracks above the door opening to the room.

These cracks do not appear to go through any anchors to equipment mounted on the Wall (see photograph 1). This is judged to not be a seismic concern.

Comments (Additional Pages may be added as necessary)

None.

Evaluated by::,

Date: 09/24/2012 09/24/2012 Page 81 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 3 Status: YZ N'-- U-Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130 Room, Area' BATTERY ROOM2A Photographs 1: Cracks on West Wall (Battery Room 2A)

Page 82 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet I of 4 Status: YE NE] U[-]

Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130 Room, Area' BATTERY ROOM2C 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)?

YZ NEI UE3 N/AFJ

2. Does anchorage of equipment in the area appear to be free of significant YZ Nn] U[] N/AL]

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)?

YS NEI UL] N/All

4. Does it appear that the area is free of potentially adverse seismic spatial Y9 NE] Ui] 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 be based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 83 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 4 Status: Y-NO uE Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130 Room, Area1 BATTERYROOM2C

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 NO] UF N/AF YN NEI UE-N/AU YN. NEI U0. N/A-

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

There is a washer missing to the fuse monitor box 2H21-P293A. It is judged that the box is adequately supported by the bolt without the washer. This is not a seismic concern.

There is, a grounding wire not attached to anything from battery fuse box 2H21-P293 (see photographs I and 2). This is not a seismic concern. There is another ground cable from the same box which is connected to the ground loop. The unattached ground cable doesn't appear to be required. CR 523485 has beenwritten to resolve this issue.

Comments (Additional pages may be added as necessary)

None.

Evaluated by: Juan Vizcaya Date: 09/2412012 Patrick Kelly 09/24/2012 Page 84 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 4 Status: Y[

NE] U-]

Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130 Room, Area' BATTERYROOM2C Photographs Photographs 1: Unattached Ground Cable to 2H21-P293 (Battery Room 2C)

Page 85 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 et 4 of 4 2: Unattached Ground Cable to 2H21-P293 (Battery Room 2C)

Page 86 of 186

ATTACHMENT 4:AREA VALKBY CHECKLISTSNS NO. SNCH082-RPT-02 VIRSION 1.0 SheetIof 5 Status: YM N[-] uO]

Area Walk-By Checklist (AWC)

Location: Bldg, Control

- Floor El. 112 Room, Area'; C026 Instuions for Completing Checklist This checklist may be used to document the results of the Area Wl-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 fordocurmenting other comments.

l. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

The top uight bolt on the HVAC support over the room door appears to be missing a nut On closer inspection, it was determined that the nut is new and so blends In to the support from the front, but is visible from an angle. Since no hardware Is missing, there ils no potentially adverse seismic condition.

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)?

There Is a -screw missing on the side of the HVAC strap near Penetration 2Z43-Hi82C (CR 524311). The strap Is screwed to the HVAC on the bottom of the strap, The single remaining screw isjudged adequate to maintain the connection betweenithe strap and the HVAC, so there is no potentially adverse seismic condition. However, in accordance with good engineering practice, the screw should be replaced so there are two screws for the support.

4. Does it appear that the area is* fre of potentially adverse seismic spatial interactions with other equipment inthe area (e.g., ceiling tiles and ligting)?.

YER NEI UO N/AEO YN NEI UEJ N/AD Y.

NEI UEJ N/AQ YO NE U0 N/AO If the room in which the SWEL itemis. located is very large (e.g., TurbineHall), the area selected should be described.

This selected area should be based onjudgment; etg., on the order ofaboiut 35 feet from the SWELitem.

Page 87 of 186

ATTACHMENT 4ý AREA W1ALK-BY CHECKLISTSI Area Walk-By Checklist (AWC)

NO. SNCHO'82-RPT-O2, VERSIO 1.0

~~Sheet 2of 5 Status: YNNn Un Location:~ Bldg. Control Floor El. 112

~Room, Area' C026

5. Does it appear that the area is free of potentially adverse seismic interactions'tha could cause flooding orspray in the aea?
6. Does it appeairthat the area is free of potentia.lly adve.rse seismic interactions that could cause a fire in the area?

Yj@ NEI UEJ, N/AEl Y *9NEI UD N/A[]

7. Does it appear that the area is free of potentially adverse seismic Y9l NEI UE 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 Y

NEI UN O

adversely affe't the safety functionsof the equipment in the area?

The ventiattio duct between the room and the hallway has an empty anchorhole in.theframe. The anchor has been removed and a welded tab has been added td theframe for the replacement through-bolt. The spacing between the anchor and the hole is close enough to reduce the capacity of the anchor. The duct is very small and light, and even without the educed anchor bolt, the remaining three anchors are sufficient tohold, the duct, so there is no otentially adverse seismic condition.

  • Comments (AdditiOnal pages may be added as necessary):.i:..i:,:*:..

Evaluated b*y Date: 10/25/2072 Mike Steele 1012512012 Page 88 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 5 Status: YZ NE] UE]

Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 112 Room, Area' C-026 Photographs Photographs Figure 1 - Difficult to See Nut on Anchor Bolt (Room C-027)

Page 89 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 5 Figure 2 - Missing Screw on HVAC Strap (Room C-027)

(Note: Hole in strap on top of HVAC, at top left of picture, is a misdrilled hole that was not utilized. No screw is missing from this strap.)

Page 90 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 5 of 5 Figure 3 - Reduced Anchor Bolt Spacing (Room C-027)

Page 91 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 5 Status: Y[

Nn uE]

Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 112 Room, Area' TC-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 of judgments and findings.

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

1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?
2. Does anchorage of equipment in the area appear to be free of significant degraded conditions?

The HVAC damper at penetration 2Z43-HOO0C has block spalling at the two lower anchors. The duct is not safety related. Only one of the four anchor bolts has a double nut. The amount ofspalling around the anchors is minor and the bolts are through-bolted. The spalling appears to have been caused by the drill during installation and not by the anchors. There is no spalling on the other side of the foot thick wall at the anchor support and there is no sensitive equipment beneath the HVAC damper. Therefore, the anchors are judged sufficient to restrain the damper and there is no potentially adverse seismic condition.

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

Y[

NEI U[D] N/AD Y[

ND U-1 N/AD1 Y[

NEI U[D] N/AD Y[R ND-1 UD-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 92 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCHO82-RPT-02, VERSI t

Sheet 2 of 5 Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 112 Room, Area, TC-T12

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)?

There is a broken portable eyewash station located in the room near the door (CR 519566). The tamper evident seal is broken, the top cover is broken and there is evidence of significant leakage. The eyewash station is not restrained against movement, but it is not near any sensitive equipment. Therefore,. it is judged not to be a potentially adverse seismic condition, but the eyewash station needs. to be repaired or replaced.

Y9 NO UF-N/A['

YZ NEI U-N/AD YER NO Ul-N/AD

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

Comments (Additional pages may be added. as necessary)

The junction box attached to battery rack 2R42-SO1 7B is missing one screw in. the top right corner of the cover plate (CR 519568). There are three existing screws and two holes in the cover plate that are not meant to have screws. The existing screws are judged to be sufficient to hold the cover plate in the case of a seismic event. Therefore, it is judged that there is no potentially adverse seismic condition.

Evaluated'by: John McFarland Date: 09110/2012 Jeff Horton J' $7'7 09/10/2012 Page 93 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 5 Status: YZ NEI U[-

Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 112 Room, Area1 TC-T12 Photographs Figure 1 - Spalling at HVAC Support (TC-T12 Control 112)

Page 94 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 5 Figure 2 - Broken Eyewash Station (TC-T 12 Control 112)

Page 95 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 5 of 5 Figure 3 - Missing Cover Plate Screw (TC-T12 Control 112)

Page 96 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 6 Status: Y[

NEI-u-Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 130.

Room, Area, C-114 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 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 appearto be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

There are two anchor bolt holes without anchor bolts on 2R42-S028. However, review of SEWS package 2R42-S029 and adjacent battery chargers show that the anchors were replaced with welds, so there are no missing anchors. The existing welds have been verified against the SE WSpackages and found to be in compliance. Therefore, there is no potentially adverse seismic condition.

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)?

There are eight bolts missing from the north flange of the 56 "x 30" HVAC duct at Penetration 2Z43-H750D on the west wall (CR 524552).

The HVA C is supported at the wall by the flanged connection to the fire damper in the wall and by a strap support about two feet east of the flanged connection. Therefore, there is negligible load from the duct on the flanged connection. Eighteen bolts properly installed on the other visible sides of the duct at the flanged connection are judged sufficient to restrain the duct. The fire damper is not adversely affected by the flanged connection with the missing bolts. Therefore, there is no potentially adverse seismic condition created by the missing bolts.

However, the missing bolts should be replaced

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)?

There is a hanging rod light suspended near 2R22-S016 with an open hook and no safety chain. The light is over open floor, and so has no potential to fall on sensitive equipment. Therefore, there is no potentially adverse seismic condition.

YN NEI U-] N/At]

YZ N[] Ut] N/A[],

YN NEI Ut N/A[]

Y[

NO-U-- N/AF-

' 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 bebased on judgment, e.g., on the order of about 35 feet from the SWEL item, Page 97 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 6 Status: YM NEI-U-]

Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL FloorEl. '130 Room, Area, C-114

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

YN, NEI UI-] N/AD YZ NEI UE1 N/AZ YN NEI Ur-N/AZ

8. Have you looked for and found no other seismicz conditions that could YZ NEI Ur-adversely affect the safety functions of the equipment in the area?

There is one screw missing and one screw missing a washer on the Q2R25-S129 distribution panel (CR 524321). The remaining four screws are sufficient to hold the light gauge cover plate; so there, is no potentially adverse seismic condition and operability is not affected However, the missing screw and washers should be replaced Comments :(Additional pages may be added as necessary)

None Evaluated by: John McFarland Date:

.25/2 Jeff Horton 09)(25,P2012 Page 98 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 6 Status: Y[3 Nn U-Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 130 Room, Area, C-114 Photographs Figure 1 - Replacement Welds (Room C-114)

Page 99 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 6 Figure 2 - Missing HVAC Bolts (Room C-1 14)

Page 100 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 5 of 6 Figure 3 - Hanging Rod with Open Hook (Room C-114)

Page 101 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 6 of 6 Figure 4 - Missing Screw and Washer (Room C-i 14)

Page 102 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet I of 4 Status: YE N[-

U-Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 130 Room, Area' C140 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.

L. Does anchorage of equipment in the area appear to be free of YN NO UL] 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 YlN NEI UI] N/AL]

degraded conditions?

3. Basedon 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)?

Instrument tubing is tied to an overhead conduit with afrayed piece of rope (see CR 513977). The tubing is supported by Unistrut members on either side of the rope, so the rope does not provide any restraint for the tubing. It isjudged 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 NEI UL] N/Al)

YZ NO U'- N/AL]

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

Page 103 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 4 Status: Y9 NEI UO-Area Walk-By Checklist (AWC)

Location: Bldg. CONTROL Floor El. 130 Room, Area, C140

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 thi 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 N[:] U-' N/AS-YER NEI US-N/All YZ NEI US' N/AS 8.. Have you looked for and found no other seismic conditions that could YZ NEI US' adversely affect the safety functions of the equipment in the area?

Comments (Additional pages may be added.as necessary)

There is afluorescent light fixture without a cover located approximately 5' above a cabinet.

The light is tied to the ceiling, so during a seismic event, only the bulb could fall. The cabinet is rugged and is judged to have sufficient strength as to make a possible impact between the cabinet and the bulb insignificant. Therefore, it is judged to be seismically adequate.

Evaluated by: John McFarland Date: 09/06/2012 Jeff Horton 09/06/2012

'4I Page 104 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS Area Walk-By Checklist (AWC)

NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 4 Status: Y[

N-] UD Location: Bldg. CONTROL Floor El. 130 Room, Area' C140 Photographs Figure 1 - Instrument Tubing Tied to Conduit (C 140)

Page 105 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 4 Figure 2 - Light Fixture over Cabinet (C 140)

Page 106 of 186

I ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 3 Status: YIE N[E] U[-

Area Walk-By *Checklist (AWC)

Location: Bldg. DIESEL G. Floor El. 130 Room, Area, 2A 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 theiresults 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)?

YZ NEI UE] N/A[:]

2. Does anchorage of equipment in the area appear to be free of significant YZ NEI UE] 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)?
4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Lighting may swing during a seismic event and touch the generator.

This isjudged to be not significant since the generator itself is very rugged and lightfixture is relatively lightweight.

Fluorescent light bulb may come off and hit the control panelfor DG 2A. However, this isjudged not to be a significant event since the actual loads endured on the panel during the start-up of the diesel generator is greater than the impact force from the falling fluorescent light bulb.

YN NO U!] N/AU YZ NEI U!] N/AU1 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 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 3 Status: Y[

N[3 UE-Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL G. Floor El. 130 Room, Area' 2A

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)?

YI NEI UrI N/AU YZ NE UtD N/AO YN NEI UOI N/AU

8. Have you looked for and found no other seismic conditions that could YI NEI ULJ 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: 917/2012 Wesley Williams /

9M/2012 Page 108 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS I

Area Walk-By Checklist (AWC)

NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 3 Status: YN NE] uOf Location: Bldg. DIESEL G.

Floor El. 130 Room, Area, 2A Photographs Page 109 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet I of 2 Status: YN. NO-UL-Area Walk-By Checklist (AWC)

Location: Bldg. DIESEL Floor El. 130 Room, Area, DIESEL GENERATOR ROOM 2C 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)?

YZ NEI. UD N/AD

2. Does anchorage of equipment in the area appear to be free of significant Y[

NE UD N/AD degraded.conditions?

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

YZ NDI UD N/AD]

YN ND UD-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 shouldbe based on judgment, e.g., on the order of about 35 feet from the SWEL item.

Page 110 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO, SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 2 Status: 'Y[

N-] U[E]

Area Walk-By Checklist, (AWC)

Location: Bldg. DIESEL

.Floor El. 130 Room, Area1 DIESEL GENERATOR ROOM2C

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/AZ Y1 NEI UI-N/All YZ NEI UE1 N/AE]

8. Have you looked for and found no other seismic conditions.that could Y0 Nil UE3 adversely affect the safety functions of the equipment in the area?

Comments,(Additional pages may be. added as necessary)

None.

Evaluated by.: Juan Vizeava Evaluated by.: Juan Vizcaya~

Date: 09/11/20 12 Date* 09/11/2012 09/11112012 Piatrick Kllv, Patrick Kell-Page 111 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet l of:3 Status:; YZ N1 UTin

  • Area Walk-By Checklist (AWC)

Location': Bldg., Reactor, Floor El. 130."

Room, Area' 2Rl07A instructionstfor 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 oftle following questions may be used to record the "rsults ofjudgments and findings.

Additional space is provided at thte end of this checklist for documenting. other comment*I s.'

L. Does anchorage of equipment.in the area appear to be free of potentially adverse seismic~conditions (if visible without necessarily openirng cabinets)?

YN NIO UO N/A!-

2. Does anchorage of equiPment in the area appear to be free of significant YN N] UV1 N/A]

degraded conditions?

3, Based on avisual inspection from the floor,:do the~cable/conduit raceways and fHVAC ducting.appear to be free of potentially adverse seismic* conditions (e~g., conditio of supportsis adequate. and fill conditions of cable trays appear to. be inside acceptable limits)?

YgNI']N UJ N/AL]

4., Does it appear that the area is free of potentially adverse seismic.,spatial YU NEI UL] N/AL]

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

If the room in which the SWEL item islo.cated is very large (e.g., Turbine Hall), the area selected shoilddbe described.

This selected area shouid be based on ijudgment,e.g., on the order of about 35 feet-frOm the SIL W

item.

Page 112 of 181 Page 112 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheett2 of 3 Status: YO NO UE1 Area Walk-By Checklist,(AWC)

Location: Bldg. Reactor Floor E8L 136'..

Room, Area, 2RI07A

5. Does it appear that the area is free of potentially adverse seismic YZ. Nn UF. N/A[]

iriteractions that could cause flooding or spray *ih'the area?

6. Does it appear that the area,.is free of potentially adverse seismic Yj@ NEI UED N/AD:

interactions that could cause a fire. iri the area?

7. Does itappeartthat the area is free pofpotentiallyadverse seismic Y0, NO VU0 N/AZ interactions associated with housekeeping practices, storage of-portable equipment, and temporary installations (e.g'., scaffolding, lead shielding)?

There is an Equipment Tag laying on the 130,elevation floor near 2H21-P41O. The SWE s have determined that the tag is small and will

-not cause an adverse seismic interaction with safety related equipment (See CR 518762).

8:. Rave you looked for and found no otherseismic, conditions that could Y13 NO U0J

'adversely affectthe safety functions of the equipment in the area?

Comritents (Additional pages maybe added as necessary):

None Evaluated, by: John McFarland Jeff Hforton Date:

Page 113 of 181 Page 113 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 3 Status: Y[

No UfO Area Walk-By Checklist (AWC)

Location: Bldg. Reactor Floor El. 130" Room, Area1 2RI07A Photographs:

Figure 1 Equipment Tag on Floor at 130' Elevation of the Reactor Building Page 114 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet: I of 4 Status: YO Ni] ur"j Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 158 Room, Area' RL - RE and R14 - R19 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)?

Y2 NEI ULi N/AEl

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

degraded conditions?

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

Y0 NEI-UE-N/ADl YED NEIl UE-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., onthe order of about 35 feet from theSWEL item.

Page 115 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 4 Status; YM N[-] U[]

Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 158 Room, Area' RL-RE and R14 -R19

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)?

Top bolt of one of the supports forthe ladder in the area has a loose

nut. This was judged not to be a seismic concern since the ladder is far from other equipment in the area. CR523720 was initiated to tighten theh nut on this bolt.

There is an oil Ieak on the floor next to item 2T3.J-E030. CR523723 was initiated for this purpose. This is not a seismic concern.

Y2 NEI U-1 N/AZ-YN NEr U[I-N/AL-]

Y10 NEI, UII N/AU-8,. Have you. looked for and found no other seismic conditions that could adversely affect~the safety functions: of the.equipment in the area?

YM NEI U1 Comments '(Additionalpages may be added as necessary)

None.

Page 116 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 4 Status: YN Nn] U["]

Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 158 Room, Area1 RL-REand R14-R19 Photographs Page 117 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS A

NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 4 Page 118 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS Area Walk-By Checklist (AWC)

NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 4 Status: YZ Nn Ur]

Location: Bldg. REACTOR Floor El. 87 Room, Area, Torus Room Bay 9 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 recordthe 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 NEI U-N/AE'

2. Does anchorage.of equipment in the area appear to be free of significant Y19 NE UF-N/AO degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be. free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?
4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area.(e.g., ceiling tiles and lighting)?

There are two flexible conduits attached to the 2G51-F012 Torus Water Cleanup Outboard Isolation that are touching adjacent conduits. In both cases, the pair of conduits are light and have adequate flexibility, and are at similar locations such that the conduit pairs will, likely move together. The conduits are rugged enough that any incidental contact between the conduits will not cause damage to the cables inside, so there is no potentially adverse seismic condition, YI NE UO N/A-1 YN NEI UEI N/AE 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 119 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 4 Status: YZ NE U0 Area Walk-By Checklist (AWC)

Location: Bldg, REACTOR Floor El. 87 Room, Area, Torus Room Say 9

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., scaifolding, lead shieyli odg)?

YO NO U0- N/AD Y0 NO UO! N/AD YN ND UO N/AO

8. Have you looked -for and found no other seismic conditions that could YX* Nil UD adversely affect thesafety fuinctions of the equipment in the area?

Comments (Additional pages may be added as: necessary)

Evaluated by: John McFarland Date: 09/26(2012 Jeff Horton,

.*?

09/26/2012 Page 120 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 4 Status: YN NEI] u-Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 87 Room, Areal Torus Room Bay 9 Photographs Figure 1 - First Conduit Pair with Limited Gap (Unit 2 Torus Room Bay 9)

Page 121 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 4 Figure 2 - Second Conduit Pair with Limited Gap (Unit 2 Torus Room Bay 9)

Page 122 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 4 Status: YE NE] uEl Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 118 Room, Area1 Unit 2 SE Diagona!

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)?

YZ NE ULI-N/AO

2. Does anchorage of equipment in the area appear to be free of significant YER NiO UO N/AOl 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 ajunction box above conduit 2MR9314 with two out of six cover plate screws missing (CR 525221). The cover plate is very light, and the four remaining screws have sufficient capacity to restrain the cover plate, so there is no potentially adverse seismic condition.

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)?

YU NEI U-N/AU YN NE UU N/AU-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 123 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 4 Status: Yv

. Nfl ur--

Area. Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 1,18 Room, Area, Unit 2 SE Diagonal

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 freeof potentially adverseseismic 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 U'I N/AE" Y0 NE-- U0 N/An-Y[

NEI U-lI N/AE' 8.. Have you looked for and found no other seismic conditions that could YN NF-UI--

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

There is a bent tension rod on a pipe spring can support. Since the rod is clearly designed to resist tension loads only, the small bend in the rod will not adversely affect the rod's structural capacity. Therefore, there is no potentially adverse seismic condition.

Comments (Additional pages may be added as necessary)

Evaluated by: John McFarland,,,

Date.:ý 09/26/2012 Jeff Horton 09/26/2012 Page 124 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 4 Status: YZ Nr] U--]

Area Walk-By Checklist (AWC)

Location: Bldg. REACTOR Floor El. 118 Room, Area' Unit 2 SE Diagonal Photographs Photographs Figure 1 - Missing Cover Plate Screws (Unit 2 SE Diagonal)

Page 125 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 4 Figure 2 - Bent Tension Rod (Unit 2 SE Diagonal)

Page 126 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet I of 4 Status: YN N[-] U'-

Area Walk-By Checklist (AWC)

Location: Bldg. Reactor Floor El. 119 Room, Area, NE Diagonal 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 UI-N/AE

2. Does anchorage of equipment in the area appear to be free of significant Y[9 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 NE UE N/A"

4. 'Does it appear that the area is free of potentially adverse seismic spatial YZ NE: UEI 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 bedescribed.

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

Page 127 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 4 Status:: YN N[] uE Area Walk-By Checklist (AWC)

Location: Bldg, Reactor Floor El. 119 Room, Areal NE Diagonal Room

5. Does it appear that the area is free of potentially adverse seismic YN NEI Uil 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 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)?

YE NEI: UE] N/AE]

YZ NEI UF-N/A[]

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

YZ NO UE]

Comments (Additional pages may be added as necessary)

Clip angle in upper platform steel with drill hole then welded to web of wide flange. This appears to be a change in structural steel methodology. The weld is on three sides of the clip angle and the SWE's have determine the weld has sufficient seismic capacity compared to the original design.

Support base-plate abandoned in place with anchors missing. SWE's have determined that the anchorage of this base-plate is seismically acceptable because there are no loads applied.

Evaluated by: john McFarland

_42 Date: 09/24/2012 Jeff Horton a 09/24/2012 Page 128 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 4 Status: Y[

N[-] U-Area Walk-By Checklist (AWC)

Photographs:

Location: Bldg. Reactor Floor El. 119 Room, Area' NE Diagonal Room Photographs:

Figure 1: Drilled Clip Angle Welded to Web of Small Wide Flange Page 129 of 186

ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 4 Figure 2: Abandoned in Place Base-Plate Page 130 of 186

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