ML12353A203

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12Q0108.50-R-001, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 1, Part 13 of 15
ML12353A203
Person / Time
Site: LaSalle Constellation icon.png
Issue date: 11/01/2012
From: Delaney M
Stevenson & Associates
To:
Exelon Generation Co, Stevenson & Associates, Office of Nuclear Reactor Regulation
References
RS-12-163 12Q0108.50-R-001, Rev 1
Download: ML12353A203 (46)
v • d • e


Text

12QO108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 1 of 4 Status: E-I N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-17 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

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

Minor lack of thread engagement at some anchors judged to be acceptable.

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

Overhead light fixtures judged to be acceptable.

5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?Fire piping welded and well-supported.

Judged to be acceptable.

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

Permanent lead shielding scaffold adequately restrained and judged to be acceptable.

D-137 1200108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 2 of 4 Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-17 8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -9/12/2012 Evaluated by: James Griffith Date: 10/17/2012 Michael Wodarcyk 10/17/2012 D-138 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 3 of 4 Status: F-v7I N U Area Walk-By Checklist (AWC)3-17 D-139 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 4 of 4 Status: l N U Area Walk-By Checklist (AWC)3-D-140 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 1 of 6 Status: L-7 N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-18 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 of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

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

Minor lack of thread engagement at some anchors judged to be acceptable.

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

Overhead light fixtures judged to be acceptable.

5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?Fire piping welded and well-supported.

Judged to be acceptable.

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

Permanent lead shielding scaffold adequately restrained.

D-141 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 2 of 6 Status: FY- N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-18 8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Line for valve 1E12-F344C has adequate support. Line runs past a piece of auxiliary steel which has holes for an additional U-bolt support for the line.However, the line is not aligned with the holes. Supports for line exist within 3 feet of the auxiliary steel piece in each direction.

As-found condition judged to be acceptable.

Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -9/12/2012 Evaluated by: James Griffith Date: 10/25/2012 Michael Wodarcyk 10/25/2012 Photos D-142 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 3 of 6 Status: 7 N U Area Walk-By Checklist (AWC)Location Bld Elev, Room/Area:

Area Walk-b 3-18 D-143 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 4 of 6 Status: N U Area Walk-By Checklist (AWC)3-18 20120912-Lasalle 118 D-144 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 5 of 6 Status: F N U Area Walk-By Checklist (AWC)D-145 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 6 of 6 Status: F N U Area Walk-By Checklist (AWC)3-18 D-146 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 1 of 8 Status: [li N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-19 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

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

Minor lack of thread engagement at some anchors judged to be acceptable.

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

Overhead light fixtures judged to be acceptable.

5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?Fire piping welded and well-supported.

Judged to be acceptable.

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

Permanent scaffold adequately restrained.

Monitoring cabinet restrained to robust auxiliary steel and judged to be acceptable.

D-147 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 2 of 8 Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-19 Small cart near robust duct and pipe. Cart is chained to pipe support and judged to be acceptable.

Manlift stored with outriggers extended is more than 2 feet from equipment.

Judged to be acceptable.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Tube track with minor deformations located above elevator door. Track is rod-hung and judged to be acceptable.

Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -9/12/2012 Evaluated by: James Griffith Date: 10/25/2012 Michael Wodarcyk 10/25/2012 Photos D-148 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 3 of 8 Status: Y N U Area Walk-By Checklist (AWC)3-19 20'D-149 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 4 of 8 Status: F N U Area Walk-By Checklist (AWC)3 D-150 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 5 of 8 Status: l N U Area Walk-By Checklist (AWC)K-by 3-19 20120912-Lasalle 197 D-1 51 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 6 of 8 Status: 7 N U Area Walk-By Checklist (AWC)D-152 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 7 of 8 Status: F N U Area Walk-By Checklist (AWC)D-153 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 8 of 8 Status: E-7 N U Area Walk-By Checklist (AWC)Location (Blda. Elev. Room/Area):

Area Walk-by 3-19 D-1 54 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 1 of 5 Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-21 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

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

Overhead light fixtures with adequately closed S-hooks restrained from horizontal movement by chain. Judged to be acceptable.

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

Frisker and various cabinets with adequate stand-off distance judged to be acceptable.

Spare breakers adequately restrained.

D-155 1200108.50-R-OO1 Rev. 1 Correspondence No. RS-12-163 Sheet 2 of 5 Status: Y N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-21 Eyewash station adequately restrained.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -9/12/2012 Evaluated by: James Griffith Date: 10/17/2012 01 4 "( Michael Wodarcyk 10/17/2012 20120912-Lasalle 314 D-156 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 3 of 5 Status: FY N U Area Walk-By Checklist (AWC)3-21 D-157 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 4 of 5 Status: FYI N U Area Walk-By Checklist (AWC)D-158 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 5 of 5 Status: N U Area Walk-By Checklist (AWC)D-159 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 1 of 3 Status: F N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-22 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

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

Overhead light fixtures judged to be acceptable.

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

Toolbox stored on floor near robust battery racks and away from batteries.

Judged to be acceptable.

D-160 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 2 of 3 Status: E-J N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-22 8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -9/12/2012 Evaluated by: James Griffith Date: 10/17/2012 Michael Wodarcyk 10/17/2012 Photos 2012091 2-Lasalle 331 20120912-Lasalle 332 D-1 61 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 3 of 3 Status: F N U Area Walk-By Checklist (AWC)D-1 62 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 1 of 3 Status: F N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-23 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

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

Overhead light fixtures with open S-hooks. Movement during seismic event attenuated by nearby conduit supports and trays. Seismic interaction judged to not be credible.

See IR 1406922.5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

D-163 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 2 of 3 Status: [-7 N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-23 8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -9/13/2012 Evaluated by: VO James Griffith Date: 10/25/2012 Michael Wodarcyk 10/25/2012 Photos D-164 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 3 of 3 Status: FY-J N U Area Walk-By Checklist (AWC)Location Oda, Elev, Room/Area):

Area Walk-by 3-23 20120913-Lasalle 039 D-165 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 1 of 6 Status: [T N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-25 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?Minor pipe and conduit interactions.

All items are flexible and judged to be acceptable.

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

Overhead light fixtures judged to be acceptable.

5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?Welded, well-supported fire piping transitions to threaded, well-supported deluge station piping. Judged to be acceptable.

Welded floor drain line judged to be acceptable.

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

Gang-box with wheel chocked, restrained to column J-8 and judged to be acceptable.

D-1 66 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 2 of 6 Status: Y N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-25 8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Minor shrinkage cracking in ceiling slab judged to be acceptable.

Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -9/13/2012 Evaluated by: James Griffith Date: 10/17/2012 Michael Wodarcyk 10/17/2012 Photos D-167 12Qo108.50-R-oo1 Rev. 1 Correspondence No.: RS-12-163 Sheet 3 of 6 Status: F] N U Area Walk-By Checklist (AWC)3-D-168 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 4 of 6 Status: F N U Area Walk-By Checklist (AWC)3 20120913-Lasalle 190 D-169 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 5 of 6 Status: FY-] N U Area Walk-By Checklist (AWC).D-170 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 6 of 6 Status: N U Area Walk-By Checklist (AWC)D-1 71 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 1 of 3 Status: L-J N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-26 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?Fire pipe in contact with support auxiliary steel brace. Pipe flexible relative to brace and judged to be acceptable.
4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Overhead light fixtures judged to be acceptable.

5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?Threaded fire piping well-supported along wall and ceiling. Unsupported length of threaded fire piping along floor is isolated by a closed valve and judged to be acceptable.
6. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?Small amount of oil absorbent rag judged to be acceptable.

Closed waste oil can judged to be acceptable.

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

D-172 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 2 of 3 Status: F N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-26 8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -9/13/2012 Evaluated by: James Griffith Date: 10/17/2012 Michael Wodarcyk 10/17/2012 20'D-173 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 3 of 3 Status: rY N U Area Walk-By Checklist (AWC)3 D-1 74 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 1 of 8 Status: EY-1 N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-27 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?Contact between rod hangers and insulated pipes, as well as between pipe support struts and insulated pipes are judged to be acceptable due to flexibility of items.4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Overhead light fixtures judged to be acceptable.

5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?Welded, well-supported fire piping transitions to threaded, well-supported deluge station piping. Judged to be acceptable.

Welded floor drain line judged to be acceptable.

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

Spool piece chained to and supported from rugged pipe at pipe support;judged to be acceptable.

Oil rag bin is below panel 1E12-P405B and will not interact with panel. Bin can contact support strut at anchorage.

Stiffness of support location at concrete will D-175 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 2 of 8 Status: FY] N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-27 mitigate transition of vibrations to panel. Judged to be acceptable.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -9/13/2012 Evaluated by: b 10 James Griffith Date: 10/17/2012 L/ Michael Wodarcyk 10/17/2012 D-176 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 3 of 8 Status: FYI N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

Area Walk-by 3-27/UIzUVI3-Lasalle z,4 D-177 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 4 of 8 Status: -N U Area Walk-By Checklist (AWC)D-178 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 5 of 8 Status: F N U Area Walk-By Checklist (AWC)D-179 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 6 of 8 Status: FY N U Area Walk-By Checklist (AWC),a D-180 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 7 of 8 Status: Y N U Area Walk-By Checklist (AWC)3-27 ZUI ZUV I J-Lasaiie zov D-1 81 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 8 of 8 Status: FI- N U Area Walk-By Checklist (AWC)D-182

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