ML12348A264

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12Q0106.30-R-002, Rev. 2, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the Dresden Nuclear Power Station, Unit 3, Part 10 of 11
ML12348A264
Person / Time
Site: Dresden Constellation icon.png
Issue date: 11/15/2012
From: Delaney M
Exelon Generation Co, Stevenson & Associates
To:
Office of Nuclear Reactor Regulation
References
RS-12-167 12Q0106.30-R-002, Rev 2
Download: ML12348A264 (56)
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Text

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet I of 4 Status: EY-1 N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-09 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 in some anchorages judged 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 appears to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?Threaded fire pipe well-supported 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?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-39 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 4 Status: F N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-09 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 -7/31/2012 Evaluated by: , James Griffith Date: 9/30/2012 Michael Wodarcyk 9/30/2012 D-40 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 4 Status: FY] N U Area Walk-By Checklist (AWC)D-41 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 4 Status: r-ii N U Area Walk-By Checklist (AWC)D-42 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 4 Status: FYI N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-10 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 appears to be inside acceptable limits)?Pipe close to rod supports judged acceptable due to inherent flexibility.
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)?

Emergency lights are adequately restrained.

IR 1395486: During the Seismic Walkdowns it was identified that a light fixture had an open S-hook on one of the two chains on the north side of the fixture. However, the other chain at the same end of the fixture had an S-hook that was securely clamped shut. Therefore, the fixture is 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 pipe well-supported 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?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-43 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 4 Status: F N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-10 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 -7/31/2012 Evaluated by: e " V James Griffith Date: 9/30/2012 Michael Wodarcyk 9/30/2012 Photos D-44 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 4 Status: 1 N U Area Walk-By Checklist (AWC)D-45 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 4 Status: F N U Area Walk-By Checklist (AWC)D-46 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet I of 6 Status: LIII N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-11 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?

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

D-47 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 6 Status: IY-] N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-11 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)?

Electronic Radiation Protection sign: 1) Sign is greater than its height away from HCU banks and MCC 39-1.2) Base of HCU banks and MCC 39-1 will protect against sliding contact if RP sign were to overturn.3) Cable riser in the vicinity is rugged.RP sign as found is 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?Missing support clamp on copper pipe near Valve 3-302-20B.

Condition judged to be acceptable based on totality of piping system support. See IR 1395804.Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -7/31/2012 Evaluated by: James Griffith Date: 10/24/2012 Michael Wodarcyk 10/24/2012 Photos D-48 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 6 Status: [Y] N U Area Walk-By Checklist (AWC)D-49 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 6 Status: I N U Area Walk-By Checklist (AWC)D-50 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 6 Status: EKI N U Area Walk-By Checklist (AWC)20120731-Dresden-3 391 D-51 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 6 Status: LYI N U Area Walk-By Checklist (AWC)D-52 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 6 Status: F N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-12 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results 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)?

Abandoned light fixture support is skewed. Support judged acceptable because it is trapped between pipes and cannot fall, and because it is anchored to the wall.2. Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?

3. Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?Piping is welded and/or well-supported 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?Gas bottles chained adequately.

D-53 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 6 Status: lj_ N U Area Walk-By Checklist (AWC)Location (Bld.q, Elev, Room/Area):

AWC-U3-12 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)?

Overhead hoist chain near MCC: 1) Weight of chain piled on floor prevents sway.2) Hook clipped to fence near torus ladder prevents sway.Hoist chain is judged acceptable.

8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?Yes Yes Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -7/31/2012 Evaluated by: J- James Griffith Date: 10/24/2012 Michael Wodarcyk 10/24/2012 Photos D-54 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 6 Status: N U Area Walk-By Checklist (AWC)20120731-Dresden-3 421 D-55 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 6 Status: F- IN U Area Walk-By Checklist (AWC)D-56 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 6 Status: [-I N U Area Walk-By Checklist (AWC)D-57 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 6 Status: F N U Area Walk-By Checklist (AWC)201 D-58 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 7 Status: F N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-13 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?

Pipe floor sleeve missing one anchor. Sleeve has one anchor to resist shear and is supported vertically by floor. Pipe sleeve bears against wall and is 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 appears to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?Drain line with victaulic couplings well supported.

Drain line is typically empty.Drain line is judged acceptable.

Minor leak at drain line Y-joint addressed with catch basin below.Minor bend in rod hanger on drain line judged 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.a., scaffolding, lead shieldinq)?

D-59 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 7 Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-13 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 -7/31/2012 Evaluated by: p James Griffith Date: 9/30/2012 Michael Wodarcyk 9/30/2012 Photos D-60 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 7 Status: rY-I N U Area Walk-By Checklist (AWC)D-61 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 7 Status: F N U Area Walk-By Checklist (AWC)D-62 Dresden Generating Station Unit 3 12Q0O108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 7 Status: F] N U Area Walk-By Checklist (AWC)D-63 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 7 Status: Liii N U Area Walk-By Checklist (AWC)D-64 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 7 Status: [ N U Area Walk-By Checklist (AWC)D-65 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 11 Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-14 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 corrosion in a number of anchorages 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 appears to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
5. Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?Threaded and welded fire piping is well-supported and judged to be acceptable.

Threaded unit heater piping is away from equipment and near drainage trough 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?Flammable items stored in locked flammable material storage cabinet 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)?

Tall scaffold is restrained against tipping and sliding. Emergency eye wash station is greater than 24 inches from SW piping valves in non-tip direction.

A robust, non-Category 1 support lies in the tip direction.

All are judged to be acceptable.

D-66 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 11 Status: N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-14 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 -8/1/2012 Evaluated by: A" James Griffith Date: 9/30/2012 Michael Wodarcyk 9/30/2012 D-67 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 11 Status: F N U Area Walk-By Checklist (AWC)D-68 Dresden Generating Station Unit 3 1200108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 11 Status: T N U Area Walk-By Checklist (AWC)D-69 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 11 Status: i-i N U Area Walk-By Checklist (AWC)D-70 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 11 Status: Y-E N U Area Walk-By Checklist (AWC)D-71 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 11 Status: F N U Area Walk-By Checklist (AWC)D-72 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 8 of 11 Status: TJ N U Area Walk-By Checklist (AWC)D-73 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 9 of 11 Status: YLI N U Area Walk-By Checklist (AWC)D-74 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 10 of 11 Status: F N U Area Walk-By Checklist (AWC)D-75 Dresden Generating Station Unit 3 1200108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 11 of 11 Status: [-J N U Area Walk-By Checklist (AWC)D-76 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 2 Status: FY-] N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-15 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)?

Rod hangers near conduits and piping are flexible and 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?Minor amount of plastic near extinguisher 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)?

Tools in pail and coil of hose on catwalk judged to be acceptable.

D-77 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 2 Status: T N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-15 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 -8/1/2012 For photographs, see SWC for D03-1501-0021AV20.

Evaluated by: James Griffith Date: 10/24/2012 Michael Wodarcyk 10/24/2012 Photos D-78 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 5 Status: FY] N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-16 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 bent rod hangers at various small bore pipes 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)?Junction boxes for 2 lights with lid slightly deformed.

Lights have additional support and are judged to be acceptable.

Bent rod hanger (1 of 3) at trolley beam 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)?
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?Gas bottles restrained adequately and 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)?

Tools and cleaning supplies judged to be acceptable.

D-79 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 5 Status: FYJ N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-16 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 -8/1/2012 Evaluated by: James Griffith Date: 10/24/2012 Michael Wodarcyk 10/24/2012 ,UIluowU-uresaen-,1i

-iz D-80 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 5 Status: FY-] N U Area Walk-By Checklist (AWC)D-81 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 5 Status: Y N U Area Walk-By Checklist (AWC)D-82 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 5 Status: T N U Area Walk-By Checklist (AWC)20120801-Dresden-3 126 D-83 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 11 Status: FIJ N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-17 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?
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 appears 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?Welded 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)?

Scaffold under cooler adequately restrained.

D-84 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 11 Status: Y N U Area Walk-By Checklist (AWC)Location (Bldg, Elev, Room/Area):

AWC-U3-17 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 -8/1/2012 Evaluated by: James Griffith Date: 9/30/2012 Michael Wodarcyk 9/30/2012 D-85 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 11 Status: Li N U Area Walk-By Checklist (AWC)Location A 3-17 D-86 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 11 Status: F N U Area Walk-By Checklist (AWC)17 D-87 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 11 Status: FY-] N U Area Walk-By Checklist (AWC)D-88 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 11 Status: Y N U Area Walk-By Checklist (AWC)D-89 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 11 Status: E N U Area Walk-By Checklist (AWC)D-90 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 8 of 11 Status: Y N U Area Walk-By Checklist (AWC)D-91 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 9 of 11 Status: F N U Area Walk-By Checklist (AWC)D-92 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 10 of 11 Status: r-- N U Area Walk-By Checklist (AWC)D-93 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 11 of 11 Status: Y N U Area Walk-By Checklist (AWC)D-94

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