ML13126A185

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Seismic Walkdown Report in Response to 50.54(f) Information Request Re Fukushima Near-Term Task Force Recommendation 2.3: Seismic, Updated Transmittal #1 (Annex a) for Dresden, Unit 3, Report No. RS-13-06, Part 5 of 13
ML13126A185
Person / Time
Site: Dresden Constellation icon.png
Issue date: 03/28/2013
From: Ali E H
Exelon Generation Co
To:
Office of Nuclear Reactor Regulation
References
RS-12-167, RS-13-067 12Q0108.30-R-002, Rev. 2
Download: ML13126A185 (68)


Text

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 7 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0024-V05 Equipment Class: (7) Fluid-Operated Valves Equipment

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Description:==

PRESSURE SUPPRESSION/

Drywell and Torus Vent Valve 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Overhead light fixtures judged to be acceptable.

Adjacent masonry walls are safety-related.

9. Do attached lines have adequate flexibility to avoid damage?10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Yes Yes Yes Other Adverse Conditions
11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -8/2/2012 Evaluated by: James Griffith Date: 9/30/2012 Michael Wodarcyk 9/30/2012 C-258 Dresden Generating Station Unit 3 12Q0108,30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 7 Status: -N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0024-V05 Equipment Class: (7) Fluid-Operated Valves Equipment

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Description:==

PRESSURE SUPPRESSION/

Drywell and Torus Vent Valve Photos C-259 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 7 Status: F-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0024-V05 Equipment Class: (7) Fluid-Operated Valves C-260 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 7 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0024-V05 Equipment Class: (7) Fluid-Operated Valves inment Descontion:

PRESSURE SUPPRESSI1 C-261 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 7 Status: F-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0024-V05 Equipment Class: (7) Fluid-Operated Valves C-262 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 7 Status: F-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0024-V05 Equipment Class: (7) Fluid-Operated Valves C-263 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 8 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0057-V20 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves EauiDment

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Description:==

PRESSURE SUPPRESSION/

Drvwell/Torus Nitr. Makeup Valve Project: Dresden 3 SWEL Location (Bldg, Elev, Room/Area):

Reactor, 476.50 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. 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.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

No 2. Is the anchorage free of bent, broken, missing or loose hardware?Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Not Applicable Not Applicable Not Applicable

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Yes C-264 Dresden Generating Station Unit 3 12QO108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 8 Status: [Y N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0057-V20 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

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Description:==

PRESSURE SUPPRESSION/

Drywell/Torus Nitr. Makeup Valve Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

Distance between valve handwheel and adjacent pipe judged to be acceptable.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Yes Yes 9. Do attached lines have adequate flexibility to avoid damage?Yes 10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Yes Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -8/3/2012 Evaluated by: "4. James Griffith Date: 9/30/2012 Michael Wodarcyk 9/30/2012 C-265 Dresden Generating Station Unit 3 12QO108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 8 Status: FY-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: Equipment Descnption:

003-1601 -0057-V20 D03-1601-0057-V20 (8) Motor-Operated and Solenoid-Operated Valves PRESSURE SUPPRESSION/

Drywell/Torus Nitr. Makeup Valve C-266 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 8 Status: LZ7 N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0057-V20 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment Descrption:

PRESSURE SUPPRESSION/

D ell/Torus Nitr. I C-267 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 8 Status: F-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: D03-1601-0057-V20 (8) Motor-Operated and Solenoid-Operated Valves C-268 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 8 Status: F-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0057-V20 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves C-269 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 8 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0057-V20 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves inment Descdntion:

PRESSURE SUPPRESSION/

Drvwell/Torus Nitr. N C-270 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 8 of 8 Status: Y N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: D03-1 601 -0057-V20 D03-1601-0057-V20 (8) Motor-Operated and Solenoid-Operated Valves SION/ Drywell/Torus Nitr. Makeup Valve C-271 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 2 Status: F-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0062-V05 Equipment Class: (7) Fluid-Operated Valves Equipment

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Description:==

PRESSURE SUPPRESSION/

Drywell Ventilation Line Valve Project: Dresden 3 SWEL Location (Bldg, Elev, Room/Area):

Reactor, 570.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. 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.Anchoraae 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

No 2. Is the anchorage free of bent, broken, missing or loose hardware?Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Not Applicable Not Applicable Not Applicable

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Yes C-272 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 2 Status: F-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0062-V05 Equipment Class: (7) Fluid-Operated Valves Equipment

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Description:==

PRESSURE SUPPRESSION/

Drywell Ventilation Line Valve Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

Yes 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Yes 9. Do attached lines have adequate flexibility to avoid damage?Yes 10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Yes Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -8/2/2012 For photographs, see SWC for D03-1601-0023-V05.

Evaluated by: James Griffith Date: 10/24/2012 Michael Wodarcyk 10/24/2012 Photos C-273 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 8 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0063-V05 Equipment Class: (7) Fluid-Operated Valves Equipment

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Description:==

PRESSURE SUPPRESSION/

Containment to SBGT Line Valve Project: Dresden 3 SWEL Location (Bldg, Elev, Room/Area):

Reactor, 570.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. 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.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

No 2. Is the anchorage free of bent, broken, missing or loose hardware?Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Not Applicable Not Applicable Not Applicable

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Yes C-274 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 8 Status: N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0063-V05 Equipment Class: (7) Fluid-Operated Valves Equipment

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Description:==

PRESSURE SUPPRESSION/

Containment to SBGT Line Valve Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

Yes 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Yes 9. Do attached lines have adequate flexibility to avoid damage?Yes 10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Yes Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -8/2/2012 Evaluated by: " James Griffith Date: 9/30/2012 Michael Wodarcyk 9/30/2012 C-275 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 8 Status: Fi-l N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0063-V05 Equipment Class: (7) Fluid-Operated Valves Equipment

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Description:==

PRESSURE SUPPRESSION/

Containment to SBGT Line Valve Photos C-276 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 8 Status: r N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: D03-1 601 -0063-V05 (7) Fluid-Operated Valves 3<C-277 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 8 Status: N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0063-VO5 Equipment Class: (7) Fluid-Operated Valves C-278 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 8 Status: F-7 N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0063-V05 Equipment Class: (7) Fluid-Operated Valves 20120802-Dresden-3 231 C-279 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 8 Status: F] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0063-V05 Equipment Class: (7) Fluid-Operated Valves inment De~crintion:

PRESSURE SUPPRESSI(C-280 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 8 of 8 Status: LII N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-1601-0063-V05 Equipment Class: (7) Fluid-Operated Valves C-281 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 8 Status: FY-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0006 Equipment Class: (18) Instruments on Racks Equipment

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Description:==

INSTRUMENT RACKS/ Instrument Rack 2203-6 Project: Dresden 3 SWEL Location (Bldg, Elev, Room/Area):

Reactor, 545.50 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. 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.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

Yes 2. Is the anchorage free of bent, broken, missing or loose hardware?Yes 3. Is the anchorage free of corrosion that is more than mild surface oxidation?

Yes 4. Is the anchorage free of visible cracks in the concrete near the anchors?Yes 5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Yes 6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Yes C-282 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 8 Status: r N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0006 Equipment Class: (18) Instruments on Racks Equipment

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Description:==

INSTRUMENT RACKS/ Instrument Rack 2203-6 Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

Yes 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Light fixtures judged to be acceptable.

Adjacent masonry wall is safety-related (No. 42, Drawing B-1709, Rev. A).9. Do attached lines have adequate flexibility to avoid damage?Yes Yes 10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Yes Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments SEWS Anchorage Notes: Anchored by 10 -3/8" concrete expansion anchors and braced back to reinforced concrete wall by 3 large braces and to floor by 4 knee-braces.

Seismic Walkdown Team: J. Griffith & M. Wodarcyk -8/2/2012 Evaluated by: l"4 1 James Griffith Date: 9/30/2012Michael Wodarcyk 9/30/2012 C-283 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 8 Status: F-1 N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: Equipment

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Description:==

D03-2203-0006 (18) Instruments on Racks INSTRUMENT RACKS/ Instrument Rack 2203-6 Photos 20120802-Dresden-3 183 20120802-Dresden-3 184 C-284 Dresden Generating Station Unit 3 1200108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 8 Status: -Y- N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0006 Equipment Class: (18) Instruments on Racks C-285 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 8 Status: F-7 N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0006 Equipment Class: (18) Instruments on Racks C-286 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 8 Status: EI- N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0006 Equipment Class: (18) Instruments on Racks C-287 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 8 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0006 Equipment Class: (18) Instruments on Racks Eauinment Descdotion:

INSTRUMENT RACKS/ Instrument Rack 2203-6 C-288 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 8 of 8 Status: Y N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: D03-2203-0006 (18) Instruments on Racks C-289 Dresden Generating Station Unit 3 12QO108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 7 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0008 Equipment Class: (18) Instruments on Racks Equipment

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Description:==

INSTRUMENT RACKS/ Instrument Rack 2203-8 Project: Dresden 3 SWEL Location (Bldg, Elev, Room/Area):

Reactor, 517.50 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. 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.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

Yes 2. Is the anchorage free of bent, broken, missing or loose hardware?Yes 3. Is the anchorage free of corrosion that is more than mild surface oxidation?

Yes 4. Is the anchorage free of visible cracks in the concrete near the anchors?Yes Minor shrinkage cracks in wal/judged to be acceptable.

5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Yes 6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Yes C-290 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 7 Status: FYI N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0008 Equipment Class: (18) Instruments on Racks Eauipment

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Description:==

INSTRUMENT RACKS/ Instrument Rack 2203-8 Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Overhead light fixtures judged to be acceptable.

Adjacent masonry wall is safety-related.

9. Do attached lines have adequate flexibility to avoid damage?10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Yes Yes Yes Yes Other Adverse Conditions
11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Tubes near overhead supports are flexible and judged to be acceptable.

Comments SEWS Anchorage Notes: Anchored by 10 -3/8" concrete expansion anchors and braced back to reinforced concrete wall by 4 braces.Seismic Walkdown Team: J. Griffith & M. Wodarcyk -8/1/2012 See U3 West HCU Bank area walk-by for further notes.Evaluated by: ' I James Griffith Date: 10/24/2012 Michael Wodarcyk 10/24/2012 C-291 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 7 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: Eauipment

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Description:==

D03-2203-0008 (18) Instruments on Racks INSTRUMENT RACKS/ Instrument Rack 2203-8 Photos C-292 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 7 Status: r-7 N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0008 Equipment Class: (18) Instruments on Racks* =XKS/C-293 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 7 Status: l N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0008 Equipment Class: (18) Instruments on Racks C-294 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 7 Status: F-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0008 Equipment Class: (18) Instruments on Racks XKS/C-295 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 7 Status: N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0008 Equipment Class: (18) Instruments on Racks'/II"-1 C-296 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 7 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0070A Equipment Class: (18) Instruments on Racks Equipment

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Description:==

INSTRUMENT RACKS/ Instrument Rack 2203-70A Project: Dresden 3 SWEL Location (Bldg, Elev, Room/Area):

Turbine, 517.50 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. 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.Anchoraqe 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

Yes Yes 2. Is the anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild surface oxidation?

Yes 4. Is the anchorage free of visible cracks in the concrete near the anchors?Yes Minor shrinkage cracks in floor judged to be acceptable.

5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Yes 6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Yes C-297 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 7 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0070A Equipment Class: (18) Instruments on Racks Equipment

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Description:==

INSTRUMENT RACKS/ Instrument Rack 2203-70A Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

Panels adjacent to 2203-70A restrained at top and judged to be acceptable.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Temporary light fixture tethered with cord and with redundant supports to permanent light fixtures and judged to be acceptable.

Adjacent masonry wall is safety-related.

9. Do attached lines have adequate flexibility to avoid damage?Yes Yes Yes Yes 10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Other Adverse Conditions
11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment.?

All cabinet doors opened to view internal base anchorage.

No other adverse seismic conditions.

Comments SEWS Anchorage Notes: Anchored by nine 1/2" Wedge-type and shell concrete expansion anchors.Seismic Walkdown Team: J. Griffith & M. Wodarcyk -7/30/2012 Evaluated by: '1 James Griffith Date: 9/30/2012 Michael Wodarcyk 9/30/2012 C-298 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 7 Status: FYI N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0070A Equipment Class: (18) Instruments on Racks Equipment

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Description:==

INSTRUMENT RACKS/ Instrument Rack 2203-70A Photos C-299 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 7 Status: LE N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0070A Equipment Class: (18) Instruments on Racks C-300 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 7 Status: FY-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: D03-2203-0070A (18) Instruments on Racks ,.SI C-301 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 7 Status: r-Y N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0070A Equipment Class: (18) Instruments on Racks C-302 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 7 Status: FYZ N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0070A Equipment Class: (18) Instruments on Racks C-303 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 4 Status: FY-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0073A Equipment Class: (18) Instruments on Racks Equipment

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Description:==

INSTRUMENT RACKS/ Instrument Rack 2203-73A Project: Dresden 3 SWEL Location (Bldg, Elev, Room/Area):

Turbine, 538.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. 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.Anchoraqe 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

Yes 2. Is the anchorage free of bent, broken, missing or loose hardware?Yes View of east-side middle anchor is obstructed.

3. Is the anchorage free of corrosion that is more than mild surface oxidation?

Yes 4. Is the anchorage free of visible cracks in the concrete near the anchors?Yes 5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Yes 6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Viewed 5 of 6 anchors. Remaining anchor could not be viewed due to obstruction from equipment.

Anchors viewed matched documentation, therefore it is reasonable to conclude that the anchors match plant documentation without further verification.

Yes C-304 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 4 Status: FY N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0073A Equipment Class: (18) Instruments on Racks Equipment

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Description:==

INSTRUMENT RACKS/ Instrument Rack 2203-73A Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Overhead light fixtures judged to be acceptable.

9. Do attached lines have adequate flexibility to avoid damage?10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Yes Yes Yes Yes Other Adverse Conditions
11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Adjacent fixed grating has gap at base of equipment; judged to be acceptable.

Comments SEWS Anchorage Notes: Panel 36Dx30WVx98H welded to steel base, 4Wx 36L 1/2" Plate. Steel base in turn anchored to R/C floor by six 1/2" concrete expansion anchors, 3 on each side.Seismic Walkdown Team: J. Griffith & M. Wodarcyk -7/31/2012 See Panel 2202-73A area walk-by for further information.

Evaluated by: < James Griffith Date: 10/24/2012 Michael Wodarcyk 10/24/2012 C-305 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 4 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0073A Equipment Class: (18) Instruments on Racks Equipment

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Description:==

INSTRUMENT RACKS/ Instrument Rack 2203-73A Photos C-306 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 4 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2203-0073A Equipment Class: (18) Instruments on Racks imprit nDqr~rintionn (S/C-307 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 6 Status: r7Y N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0010 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

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Description:==

CONTROL PANEL/ DG Metering and Relay Cabinet Project: Dresden 3 SWEL Location (Bldg, Elev, Room/Area):

Turbine, 517.50 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. 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.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

Yes 2. Is the anchorage free of bent, broken, missing or loose hardware?Yes 3. Is the anchorage free of corrosion that is more than mild surface oxidation?

Yes 4. Is the anchorage free of visible cracks in the concrete near the anchors?Yes Minor shrinkage cracks in floor judged to be acceptable.

5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Yes Yes C-308 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 6 Status: FYi N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0010 Equipment Class: (20) Instrumentation and Control Panels and Cabinets EauiDment

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Description:==

CONTROL PANEL DG Metedna and Relay Cabinet Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Yes Yes 9. Do attached lines have adequate flexibility to avoid damage?Yes 10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Yes Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments SEWS Anchorage Notes: The base channel is welded in all four corners with 1" long 3/16" fillet welds.Seismic Walkdown Team: J. Griffith & M. Wodarcyk -7/31/2012 Evaluated by: ' .41 James Griffith Date: 9/30/2012 Michael Wodarcyk 9/30/2012 C-309 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 6 Status: FY-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: Eauipment

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Description:==

D03-2253-001 0 (20) Instrumentation and Control Panels and Cabinets CONTROL PANEL/ DG Metering and Relay Cabinet C-310 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 6 Status: N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0010 Equipment Class: (20) Instrumentation and Control Panels and Cabinets nmpnt CONTROL PANEL /fDG Meterina and Relav Cahinet C-311 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 6 Status: EYI N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0010 Equipment Class: (20) Instrumentation and Control Panels and Cabinets IDG C-312 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 6 Status: Y-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0010 Equipment Class: (20) Instrumentation and Control Panels and Cabinets C-313 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 5 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0021 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

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Description:==

CONTROL PANEL/ DG Excitation Cabinet Project: Dresden 3 SWEL Location (Bldg, Elev, Room/Area):

Turbine, 517.50 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. 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.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

Yes 2. Is the anchorage free of bent, broken, missing or loose hardware?Yes 3. Is the anchorage free of corrosion that is more than mild surface oxidation?

Yes 4. Is the anchorage free of visible cracks in the concrete near the anchors?Yes Minor shrinkage cracks in floorjudged to be acceptable.

5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Yes 6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Yes C-314 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 5 Status: FYi N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0021 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Eouipment

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Description:==

CONTROL PANEL/IDG Excitation Cabinet Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Yes Yes Yes Yes Other Adverse Conditions
11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments SEWS Anchorage Notes: Welding is very marginal front of panel has about 2" long by 1/8" fillets, one side has 2 1" and 1-3/4" long 1/8" fillets and the other side has about 1" long 1/8" fillet toward the back. Rear of panel has no anchorage.

Seismic Walkdown Team: J. Griffith & M. Wodarcyk -7/31/2012 Evaluated by: ' James Griffith Date: 9/30/2012 Michael Wodarcyk 9/30/2012 C-315 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 5 Status: Y-1 N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0021 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

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Description:==

CONTROL PANEL DG Excitation Cabinet C-316 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 5 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0021 Equipment Class: (20) Instrumentation and Control Panels and Cabinets J DG C-317 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 5 Status: 7 N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: D03-2253-0021 (20) Instrumentation and Control Panels and Cabinets.31 201 C-318 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 7 Status: FIY- N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0084 Equipment Class: (18) Instruments on Racks Eciuipment

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Description:==

INSTRUMENT RACKS/ Instrument Rack 2253-84 Project: Dresden 3 SWEL Location (Bldg, Elev, Room/Area):

Reactor, 545.50 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. 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.Anchoraqe 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

Yes 2. Is the anchorage free of bent, broken, missing or loose hardware?Yes 3. Is the anchorage free of corrosion that is more than mild surface oxidation?

Yes 4. Is the anchorage free of visible cracks in the concrete near the anchors?Yes 5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Yes 6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Yes C-319 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 7 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0084 Equipment Class: (18) Instruments on Racks Equipment

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Description:==

INSTRUMENT RACKS/ Instrument Rack 2253-84 Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

Yes 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Overhead light fixtures are judged to be acceptable.

9. Do attached lines have adequate flexibility to avoid damage?Yes Yes 10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Yes Other Adverse Conditions
11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments SEWS Anchorage Notes: Distribution Panel cantilevered from floor on two legs each. Each leg is welded to a base plate that is anchored to the floor with four 1/2" diameter expansion bolts.Seismic Walkdown Team: J. Griffith & M. Wodarcyk -8/2/2012 Evaluated by: James Griffith Date: 9/30/2012 Michael Wodarcyk 9/30/2012 C-320 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 7 Status: r-ZI N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: EauiDment

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Description:==

D03-2253-0084 (18) Instruments on Racks INSTRUMENT RACKS/ Instrument Rack 2253-84 Photos C-321 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 7 Status: N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0084 Equipment Class: (18) Instruments on Racks C-322 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 7 Status: FY I N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0084 Equipment Class: (18) Instruments on Racks C-323 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 7 Status: EZII N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0084 Equipment Class: (18) Instruments on Racks C-324 Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 7 Status: [-7 N U Seismic Walkdown Checklist (SWC)Equipment ID No.: D03-2253-0084 Equipment Class: (18) Instruments on Racks Eauiment

Description:

INSTRUMENT RACKS/ Instrument Rack 2253-84 C-325