RS-12-167, 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 11 of 11

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 11 of 11

ML12348A274
Person / Time
Site:	Dresden
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: ML12348A274 (125)

Text

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 9 Status: LY-1 N U

Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-18 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 surface corrosion, minor lack of thread engagement, and minor grout pad cracking all 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)?

Pipes, conduits, and tubes in close proximity at various locations. Judged to be acceptable due to flexibility in the lines.

5.

Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?

Room heater and associated threaded pipes are well-supported and are judged to be acceptable. All other pipes are welded.

6.

Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?

Small quantities of cloth scaffold knuckle buckets and plastic tubing 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)?

Scaffold storage rack on ledge above has adequate distance from edge of ledge with material neatly stored. Rack is judged to be acceptable.

D-95

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 9 Status: FjJ N U

Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-18

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?

Bent light fixture above rack 2203-19A judged to be acceptable.

Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk - 8/1/2012 Evaluated by:

James Griffith Date:

9130/2012 A

Michael Wodarcyk 9/30/2012 Photos D-96

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 9 Status: [*

N U

Area Walk-By Checklist (AWC)

D-97

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 9 Status: EI N U Area Walk-By Checklist (AWC)

D-98

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 9 Status: FY] N U

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Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 9 Status:

I N U Area Walk-By Checklist (AWC)

D-100

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 9 Status: r-* N U

Area Walk-By Checklist (AWC)

D-101

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 8 of 9 Status: EZII N U

Area Walk-By Checklist (AWC)

D-102

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 9 of 9 Status: FY-] N U Area Walk-By Checklist (AWC)

D-103

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 6 Status: E7 N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-19 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 floor coating failures judged to be acceptable.

Minor gaps between base plate and wall due to uneven concrete 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)?.

S-hooks and/or eyehooks in light fixtures need to be more adequately closed.

Fixtures might swing down from their non-power cord ends but will not affect soft targets, and therefore are judged to be acceptable.

IR 1396017:

LIGHT SUPPORT CONNECTION DEFICIENCY During the Seismic Walkdowns it was identified that there are multiple open S-hook connections between the chain and the support bracket for the lighting fixtures in the U3 HPCI Room. However, each light fixture is hardwired, therefore, they would not fall if the support chains were to hardwired, therefore, they would not fall if the support chains were to come loose. In addition, the equipment within the range that the light fixtures would swing, if they were to come loose, appears to be robust and would not be significantly damaged by engineering judgement.

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 and judged to be acceptable. Welded piping judged to be acceptable.

Collection pit below grating at turbine near end of room is full of fluid which appears to be water. Fluid in pit does not pose a flood or spray risk.

D-104

Dresden Generating Station Unit 3 1200108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 6 Status:

T N U Area Walk-By Checklist (AWC)

Location (Bldo. Elev. Room/Area):

AWC-U3-19

6.

Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?

Collection pit below grating at turbine near end of room is full of fluid which appears to be water and therefore is not a fire risk.

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)?

Permanent scaffold and trolley chain fall are properly restrained.

Sump pump equipment is adequately stored away from plant equipment.

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 Yes Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk - 8/11/2012 Evaluated by:

' James Griffith Date:

9/30/2012 Michael Wodarcyk 9/30/2012 D-105

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) du1 D-106

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-1 2-167 Sheet 4 of 6 Status: [I N

U Area Walk-By Checklist (AWC)

D-107

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 6 Status: F N U Area Walk-By Checklist (AWC)

D-108

Dresden Generating Station Unit 3 1200108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 6 Status:

] N U Area Walk-By Checklist (AWC)

D-109

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet I of 5 Status: [Y N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-20 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)?

5.

Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?

Unit heater and associated piping 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-110

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 5 Status:

Y N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-20

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 - 8/2/2012 Evaluated by:

ý' " 114 James Griffith Date:

9/30/2012 L/ Michael Wodarcyk 9/30/2012 D-111

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 5 Status: F-* N U Area Walk-By Checklist (AWC)

D-112

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 5 Status: ElI N U Area Walk-By Checklist (AWC)

D-113

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 5 Status: [-* N U Area Walk-By Checklist (AWC)

D-114

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 2 Status:

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

Location (Bldg, Elev, Room/Area):

AWC-U3-21 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 adverse seismic conditions (if visible without necessarily opening cabinets)?

Yes

2.

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

Yes

3.

Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,

condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?

Yes

4.

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

Yes

5.

Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?

Yes

6.

Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?

Yes

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)?

Yes D-115

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 2 Status: Lull N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-21

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 - 8/2/2012 For photographs, see SWC for D03-1601-0024-V05.

Evaluated by:

James Griffith Date:

10/24/2012 Michael Wodarcyk 10/24/2012 Photos D-116

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 6 Status: [*] N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-22 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 appears to be inside acceptable limits)?

Hanger rods in contact with pipes and conduits judged to be acceptable due to hanger rod, pipe, and conduit 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)?

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?

Minor quantitiy of oil. drip rags 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-117

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 6 Status: [V N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-22

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 - 8/2/2012 Evaluated by:

James Griffith Date:

9/30/2012 Michael Wodarcyk 9/30/2012 zui zutuz-uresoen-4 1 z D-1 18

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 6 Status: F N

U Area Walk-By Checklist (AWC) 20' D-119

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 6 Status: Y N U Area Walk-By Checklist (AWC)

D-120

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 6 Status:

T1 N U

Area Walk-By Checklist (AWC)

D-121

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 6 Status:

1 N U Area Walk-By Checklist (AWC)

D-122

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 8 Status: r N

U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-23 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)?

The gallery at the north end of the RBCCW heat exchangers is not anchored at its legs to the floor. Its ladder is anchored to the floor and there is adequate clearance between the gallery and adjacent equipment. The gallery is judged to be acceptable.

2.

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

Minor lack of thread engagement judged to be acceptable.

IR 1396558:

CONDUIT SUPPORT ANOMALY During Fukushima seismic walkdowns the NRC resident identified an electrical conduit support outside the designated walk-by boundary that had one of two wall-mounted brackets not flush with the wall. The support is U-shaped. Three conduits are attached to this support (estimated to be two (2) @ 1 & one (1) @

1 diameter). The location of the subject support is between L-50 and K-50 approximately 15-0 above floor elevation 545'-O" The subject support is also above valve 3-3917-B-501.

The bracket that is not flush is not a concern because the other end of the support is judged capable of carrying the whole load as a hanger. The bracket that is not flush would be in compression so flush mount is not an issue. In addition, there are multiple additional properiy installed conduit supports in the run that are immediately adjacent to the subject support. The system is adequately supported with no adverse effects based upon inspection and engineering judgment.

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)?

Minor bends in hanger rods 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)?

D-123

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 8 Status: III7 ] N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-23

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, unit heater, and associated piping are all well-supported and judged to be acceptable.

6.

Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?

Yes

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)?

Yes

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 Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk - 8/2/2012 Evaluated by:

James Griffith Date:

9/30/2012 SMichael Wodarcy k 9/30/2012 D-124

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 8 Status: r-I N U

Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-23 Photos D-125

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 8 Status: EI-N U Area Walk-By Checklist (AWC) 20120802-Dresden-3 208 D-126

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 8 Status: FYII N U Area Walk-By Checklist (AWC)

D-127

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 8 Status: Li] N U

Area Walk-By Checklist (AWC) 4U I D-128

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 8 Status:

Y N

U Area Walk-By Checklist (AWC)

D-129

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 8 of 8 Status: EY N U Area Walk-By Checklist (AWC)

D-130

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-1 2-167 Sheet 1 of 3 Status: FY] N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-24 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?

IR 1396568:

SFP PIPE SUPPORT MISSING ANCHOR BOLTS During Fukushima seismic walkdowns the NRC resident identified a 3-inch diameter pipe run with two knee-brace type wall mounted bracket supports that were missing one anchor bolt each. The 3-inch pipe has Spent Fuel Pool (SFP) drain valve 3-1901-8 in the line. Each support is intended to have two anchor bolts and only the bottom bolt in each support was installed. The location of the subject supports is on the north wall above elevation 570 on the high dose side of the SFP fence in a High Radiation Locked boundary. The 3-inch diameter pipe is 3-1913-3-L per P&ID drawing M-362.

According to the P&ID drawing, the subject pipe drains the SPF on the dry side of the gate and is currently isolated. This was confirmed by the shift manager and unit supervisor. Therefore, the deficiency does not affect the safety related/seismic function of the equipment.

IR 1396571:

CONDUIT SUPPORT MISSING ANCHOR BOLT During Fukushima seismic walkdowns the NRC resident identified a 2.5" diameter conduit run with a ceiling mounted bracket support that was missing one anchor bolt. The location of the subject support is in the ceiling above elevation 570' on the high dose side of the SFP fence in a High Radiation Locked boundary. The conduit and subject support are above valve 3-1601-23.

The conduit run is vertical from an existing junction box that is supported from the floor by a stanchion underneath. The majority of this vertical conduit run is carried by the floor support. The ceiling support with a missing anchor bolt is immediately after a 90 degree bend where it tums horizontal below the ceiling.

A second ceiling support is located approximately 4' from the support with a missing anchor bolt. This second ceiling support is properiy installed with both anchors intact.

According to Table 1.2 in specification K-4081 the maximum acceptable D-131

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 3 Status:

Y N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-24 horizontal span between supports is 9'-O". The vertical run is well supported and acts as an end support for the beginning of the horizontal run. The properly installed ceiling hanger may be considered the next support on the horizontal runn without regard to the improperly installed support. Since the horizontal span between the vertical conduit run and properly installed support is less than 9"-O", The missing anchor deficiency does not affect the safety related function of the equipment.

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?

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)?

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 - 8/2/2012 For photographs, see SWC for D03-1601-0023-V05.

D-132

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 3 Status: r-] N U

Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-24 Evaluated by:

e James Griffith Date:

10/24/2012 Michael Wodarcyk 10/24/2012 Photos D-133

Dresden Generating Station Unit 3.

12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 2 Status: jY] N U Area Walk-By Checklist (AWC)

Location (BIdg, Elev, Room/Area):

AWC-U3-25 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 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 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-134

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 2 Status: LIII N U

Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-25

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?

Comments Seismic Walkdown Team: D. Carter & J. Griffith - 7/17/2012 AWC 14 Evaluated by:

• Ja-David Carter Date:

9/30/2012 James Griffith 9/30/2012 Photos 0246 D-135

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 3 Status: FYi N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-26 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?

Minor corrosion judged to be acceptable. Minor coating failure on pump support pedestals 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)?

Robust valve bodies located near gallery 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?

D-136

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 3 Status: ELI N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-26

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)?

Ladder storage bracket on wall lacks a lock on its chain. Ladder moved into acceptable position on floor.

IR 1396906:

The Fukushima Seismic walkdown team inspected the U3 SDC Pump Room as part of the scope for area walk by inspections to satisfy the NRC request for information. There is a ladder rack on the wall directly across from the doorway to the room. The chain intended to restrain the ladder on the rack was placed over the ladder but the chain did not have a latch to secure it. The ladder was repositioned to mitigate this deficiency; therefore, there is no seismic concern.

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 - 8/3/2012 Evaluated by:

J James Griffith Date:

10/24/2012

/PW

/

Michael Wodarcyk 10/24/2012 Photos D-137

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 3 Status:

T N

U Area Walk-By Checklist (AWC)

D-138

Dresden Generating Station Unit 3 12QO108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet I of 2 Status: r N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-27 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?

Minor surface corrosion, minor coating failures, and minor lack of thread engagement at several anchorages al/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)?

Minor bends in several hanger rods; rods 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)?

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 pipes 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-139

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 2 Status: FTI N U Area Walk-By Checklist (AWC)

Location (Bidg, Elev, Room/Area):

AWC-U3-27

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 - 8/3/2012 For photographs, see SWC for D03-0409-A ---- T05.

Evaluated by:

(

James Griffith Date:

10/24/2012 Michael Wodarcyk 10/24/2012 Photos D-140

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 5 Status: F N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-28 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 surface corrosion 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)?

Pipes, conduits, and tubes in close proximity'at various locations. All 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?

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?

Volume of plastic and Radiation Protection bags small 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)?

D-141

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 5 Status: [-J N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-28

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 tubing deformations in area judged to be acceptable.

Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk - 8/3/2012 Evaluated by:

James Griffith Date:

9/30/2012 f

Michael Wodarcyk 9/30/2012 Photos D-142

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 5 Status: FTS N U

Area Walk-By Checklist (AWC)

D-143

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 5 Status: []

N U

Area Walk-By Checklist (AWC)

D-144

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 5 Status:

1 N U Area Walk-By Checklist (AWC)

D-145

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 3 Status:

7 N

U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-29 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)?

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. 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.g., scaffolding, lead shielding)?

Scaffold adequately restrained.

D-146

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 3 Status:

Y N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-29

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: D. Carter & J. Griffith - 7/17/2012 AWC 29 Evaluated by:

"Ja-k David Carter Date:

9/30/2012

?

James Griffith 9/30/2012 Photos I

MG_0202 MG_0203 D-147

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 3 Status:

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

MG 0206 MG 0207 D-148

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-U3-30 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?

Non-safety-related support near valve 3-1201-124B missing I nut from 1 of 4 anchors.

IR 1396565:

ANCHOR PLATE MISSING NUT During Fukushima seismic walkdowns it was identified that the anchor plate of a floor-mounted piping support near valve 3-1201-124B was missing a nut on one of four anchors. The support is located at the U3 RWCU Demin Valve Gallery. However, the other three anchors had nuts securely torqued so the support is judged to not be a seismic concern. Also, this support is on a non-safety-related system.

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 piping judged to be acceptable.

D-149

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 2 Status: Lii N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-30

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 wood judged to be acceptable.

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)?

Seismic storage of various items (small ladder, pipe stand, etc.) judged to be 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 - 8/2/2012 For photographs, see SWC for D03-1601-0063-VO5.

Evaluated by:

I James Griffith Date:

10/24/2012 AAW

-(i/A Michael Wodarcyk 10/24/2012 Photos D-150

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-31 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.

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

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

Yes

2.

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

Yes

3.

Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,

condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?

Yes

4.

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

Yes

5.

Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?

Yes

6.

Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?

Yes

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)?

Baker scaffold stored in room is adequate. Adequate tip and slide clearance per DAP.

Yes D-151

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 2 Status: LYi] N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-31

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?

Masonry walls all edge-supported and judged acceptable.

Comments Seismic Walkdown Team: D. Carter & J. Griffith - 7/16/2012 AWC 31 For photographs, see SWCs for DOO-5741-0048BV72, DOO-9400-0102-R15, and DOO-9400-0104BF05.

Evaluated by:.

Q-*'Qk David Carter Date:

10/24/2012 James Griffith 10/24/2012 Photos D-152

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

Location (Bldg, Elev, Room/Area):

AWC-U3-32 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)?

5.

Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?

Minor bend in fire protection line support judged to be acceptable. Threaded fire pipe well supported and judged to be acceptable.

IR 1389712:

Bent fire piping hanger that is in the area above the Unit 2 LEFM panel

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-153

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 4 Status: FYj1 N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-UL3-32

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 Comments Seismic Walkdown Team: D. Carter & J. Griffith - 7/17/2012 AWC 32 Evaluated by:

"(2*

David Carter Date:

9/30/2012 A

James Griffith 9/30/2012 Photos MG 0188 MG 0189 D-154

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 4 Status:

Y-I N U

Area Walk-By Checklist (AWC)

MG 0194 MG 0195 D-155

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-1 2-167 Sheet 4 of 4 Status:

1 N U

Area Walk-By Checklist (AWC)

MG 0196 D-156

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 2 Status: E-] N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-33 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.

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

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

Yes

2.

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

Yes

3.

Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,

condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?

Yes

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

Yes

5.

Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?

Yes

6.

Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?

Yes

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)?

Orientation of mirrored insulation temporarily stored on catwalk is adequate to prevent overturning. Sliding of insulation is restrained by kick plate.

Yes D-157

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 2 Status: rYIJ N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area):

AWC-U3-33

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 - 8/3/2012 For photographs, see SWC for D03-1001-0005AV20.

Evaluated by:

e James Griffith Date:

10/24/2012 Michael Wodarcyk 10/24/2012 Photos D-158

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 E

Plan for Future Seismic Walkdown of Inaccessible Equipment Fifteen (15) items could not be walked down during the 180-day period following the issuance of the 10CFR50.54(f) letter since they are located in areas that are normally inaccessible. The items will be walked down during a unit outage or time when the equipment is accessible, as appropriate. Table E-1 summarizes the reasons each item is inaccessible during normal plant operation and notes the Dresden Station Issue Report (IR) that has been written to track completion of the Seismic Walkdowns (and Area Walk-bys) for these items. It is noted that SSCs identified on Table E-1 require a complete inspection including, as applicable, internal inspections of electrical cabinets for other adverse seismic conditions, as required.

Certain cabinets require supplemental internal inspection for other adverse seismic conditions as summarized in Table E-2. Supplemental internal inspections of these cabinets are required due to clarifications provided by the NRC after the online seismic walkdowns were completed. These Supplemental inspections will be completed during a unit outage or another time when the equipment is accessible, as appropriate. It is noted, that SSCs identified on Table E-1 do not appear on Table E-2.

E-1

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Table E-1. Inaccessible and Deferred Equipment List Component Reason for Action Resolution/

Milestone DescrptionRequest ID Description Inaccessibility Reques)

Status Completion D03-0203-MAIN STEAM/

Located in 0001AV05 Isolation Valve drywell 1403575 Open D3R22 D03-0203-ADS/ Target Rock Located in 1403575 Open D3R22 0003AV26 Valve drywell D03-0203 ADS/ Reactor Located in 0004AV26 Overpressure Relief drywell 1403575 Open D3R22 Valve PRESSURE Located in D03-1601-SUPPRESSION/

torus basement 1403575 Open D3R22 0021-V05 Drywell Purge Line

/catwalk Valve PRESSURE Located in D03-1601-SUPPRESSION/

torus basement 1403575 Open D3R22 0022-VO5 Drywell/Torus Purge

/ catwalk Line Valve RB EQUIPMENT Located in D03-2001-DRAIN/ Drywell torus basement 1403575 Open D3R22 0005-VO5 Equipment Drain Line

/ catwalk Valve RB EQUIPMENT Located in 003-2001-DRAIN/ Drywell Floor torus basement 1403575 Open D3R22 0105-V05 Drain Line Valve

/ catwalk REACTOR Located in D03-0202-RECIRCULATION/

drywell, 1403575 Open D3R22 0005AV20 Recirc Pump A Discharge Valve D03-0203-ADS/ Electromatic Located in 1403575 Open D3R22 0003BV26 Relief Valve drywell CRD/ East Bank Located in D03-0302-Scram Discharge torus basement 1403575 Open D3R22 0157AV05 Volume Drain Valve

/ catwalk CRD/ East Bank Located in D03-0302-Scram Discharge torus basement 1403575 Open D3R22 0156AV05 Volume Drain Valve

/ catwalk E-2

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Component Reason for Action Resolution/

Milestone ID DescriptionInaccessibility Request Status Completion ID Iaccesibiit ID (IR)

ISOLATION Located in D03-1301-CONDENSER/ Steam drywell 1403575 Open D3R22 0004-V20 Return Line Isolation Valve D03-2301-HPCI/ HPCI Pump Located in X-1403575 Open D3R22 0008-V20 Injection Line Valve area D03-0302-CRD/East Bank SDV See Note 1 1

0082B-LS Tank Level Switch below 250V DC/ Breaker to See Note 2 D01-M35 TB MCC #3 (ROB-below 1403575 Open D3R22 Battery #3)

Notes:

1)

Walkdown team and assigned Equipment Operator could not find component in field. A search of Passport indicated that component is located in Control Panel 903-15. This panel is a SWEL I item and was walked down. Dresden SRO disagrees with location shown in Passport. Need Operations Department to guide walkdown team to location of component.

2)

Equipment Operator assigned to walkdown team led team to the Unit 2 250V DC MCC #2 for this component. Equipment Operator indicated that the component is located in the aforementioned MCC. Dresden SRO questions if this is the correct location. Need Operations Department to guide walkdown team to location of component.

E-3

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Table E-2. Supplemental Cabinet Internal Inspection List IF NOT TRACKING STATUS I COMPONENT EQUIPMENT ACCESSIBLE MILESTONE NUMBER STION ID DESCRIPTION CLASS (Y/N)

ACCESSIBLE, COMPLETION NUMBER INSPECTION WHY?

(IR No.)

RESULTS Energized D03-7838-2---

480V AC/ MCC (01) Motor 480VAC IR 1403575

-M05 38-2 Control No cabinets.

D3R22 WO Open Centers Electrical 631303 safety hazard.

Energized D03-7839-2---

480V AC/ MCC (01) Motor 480VAC IR 1440232 Control No cabinets.

D3R27 WO Open Centers Electrical 1388637 safety hazard.

Tight 250V DC/ MCC (01) Motor thumbscrews.

-M05 Bus #3A (ROB-Control Yes Will require 1Q2013 1427705 Open RB MCC #3)

Centers screwdriver to open.

Tight 250V DC/ MCC (01) Motor thumbscrews.

-M0 B Bus #3B (ROB-Control Yes Will require 1Q2013 1427705 Open

-M05 RB MCC #3)

Centers screwdriver to open.

125V DC/ RB Tight D03-83125----

125V DC (01) Motor thumbscrews.

Control Yes Will require 1Q2013 1427705 Open

-P06 D

b Centers screwdriver to Panel #3

___ open._

Table E-2 Page 1 of 9 E-4

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 COMPONENT EQUIPMENT ACCESSIBLE IF NOT MILESTONE TRACKING STATUS /

ID DESCRIPTION CLASS (Y/N)

ACCESSIBLE, MLETON NUMBER INSPECTION (YN H?

COMPLETION NUBR ISETO WHY?

(IR No.)

RESULTS Tools required.

Internal inspection of mountings will 24/48V DC/

(01) Motor require IR 1440239

-P0 A

Distribution Control No removal of 1Q2022 WO Open

-P06 Panel #3A Centers cover over 99053854 breakers (similar to home breaker cabinet)

Energized D03-7338 ------

480V AC/

(02) Low 480VAC IR 1440231 S35 Switchgear 38 Voltage No cabinets.

D3R26 WO Open Switchgear Electrical 99212406 safety hazard.

Energized D03-7339 ------

480V AC/ 480V (02) Low 480VAC IR 1440232 S35 Switchgear 3 Voltage No cabinets.

D3R27 WO Open Switchgear Electrical 538717 safety hazard.

Energized D03-67341----

4160V AC/

(03) Medium 4160VAC IR 1440232

-S35 Switchgear 34-Voltage No cabinets.

D3R27 WO Open 1

Switchgear Electrical 1390287 safety hazard.

480V AC/!

Energized D03-7338-Transformer (04) 480VAC IR 1440231 T03 38, Feed to Transformers No cabinets.

D3R26 WO Open Switchgear 38 Electrical 99212406 Switchgear_

38safety hazard..

Table E-2 Page 2 of 9 E-5

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IF NOT TRACKING STATUS /

COMPONENT DESCRIPTION EQUIPMENT ACCESSIBLE MILESTONE NUMBER INSPECTION ID DSRPIN CLASS (YIN)

ACESBE COMPLETION NUBR ISETO ACCESSWHY?

(IR No.)

RESULTS 250V DC/

Tight D03-83250-Breaker to TB (14) thumbscrews.

A01-MO5 MCC #3 (ROB-Distribution Yes Will require 1Q2013 1427705 Open Battery #3)

Panels screwdriver to open.

Tools required.

Internal 24/48V DC/

(14) inspection of IR 1440239 D03-9802A-Breaker to Distribution No mountings will 1Q2022 R

4 Open A21-B11 Battery Charger Panels require 99053854

1. 3A (+)

removal of 99053854 cover over breakers Tools required.

Most sections can be easily accessed.

D03-8300--

125V DC/

(16) Battery However the 3A --

Battery Charger Chargers and Partial lower left 1PQ2013 1427705 Open 3A--B05

1. AIvressection will Partial

1. 3A Inverters require tools to remove covers to inspect mounting points.

Table E-2 Page 3 of 9 E-6

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IF NOT TRACKING STATUS/

COMPONENT DESCRIPTION EQUIPMENT ACCESSIBLE MILESTONE NUMBER INSPECTION ID CLASS ACCSSBWHY?

COMPLETION (IR No.)

RESULTS Tools required.

Most sections can be easily accessed.

D03-8300--3--

125V DC/

(16) Battery However the

-B05 Battery Charger Chargers and Partial lower left 1PQ2013 1427705 Open

-B35#3Ivetr section will Partial

1. 3 Inverters require tools to remove covers to inspect mounting points.

Tools required.

Most sections can be easily accessed.

D03-83250-3--

250V DC/

(16) Battery However the

-B05 Battery Charger Chargers and Partial section will Partial 1427705 Open

1. 3 Inverters require tools to remove covers to inspect mounting points.

CONTROL (20)

Tight DOO-2223-PANEL DG Instrumentation thumbscrews.

0109 Cooling Pump and Control Yes Will require 1Q2013 1427705 Open Transfer Switch Panels and screwdriver to Status Cabinets open.

Table E-2 Page 4 of 9 E-7

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IF NOT TRACKING STATUS/

COMPONENT DESCRIPTION EQUIPMENT ACCESSIBLE ACCESSIBLE, MILESTONE NUMBER INSPECTION ID

.CLASS (YIN)

WH?

COMPLETION (RN.

EUT

______WHY?

(IR No.)

RESULTS CONTROL (20)

Tight PANEL Unit Instrumentation thumbscrews.

D00-ACP 2/3 Auxiliary and Control Yes Will require 1Q2013 1427705 Open 2/3 auxl Panels and screwdriver to Control Panel Cbnt pn Cabinets open.

Tools required.

There are two panels at this point. The larger of the two can be CONTROL (20) opened. The PANEL/ Unit Instrumentation smaller D00-DGCP 2/3 Diesel and Control Partial (mounted on 1Q2013 1427705 Open Generator Panels and the right side)

Partial Control Panel Cabinets cannot be opened without the use of tools.

The panel label is located on the smaller panel.

DOO-NGC CONTROL (20)

(This is PANEL Unit Instrumentation assumed to 2/3 Neutral and Control Yes N/A 1Q2013 1427705 Open be EPN 2/3-Grounding Panels and 6600-NGT)

Cabinet Cabinets Table E-2 Page 5 of 9 E-8

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IF NOT TRACKING STATUS I COMPONENT EQUIPMENT ACCESSIBLE MILESTONE NUMERINSTION ID DESCRIPTION CLASS (Y/N)

ACCESSIBLE, COMPLETION ACSL (IR No.)

RESULTS NO OTHER CONTROL (20)

ADVERSE D03-0903-PANELS/

InstrumentationSEISMIC and Control YES N/A 7/30/2012 N/A SEIS 0003 Control Panel CONDITIONS 903-3 Panels and (NO PHOTO Cabinets ALLOWED)

CONTROL (20)

NO OTHER D03-0903-PANELS/

Instrumentation ADVERSE 0015 Control Panel and Control YES N/A 7/30/2012 N/A SEISMIC Panels and 903-15 Canets CONDITIONS Cabinets CONTROL (20)

NO OTHER D03-0903-PANELS/

Instrumentation ADVERSE 0028 Control Panel and Control YES N/A 7/30/2012 N/A SEISMIC Panels and 903-28 Canets CONDITIONS Cabinets NO OTHER CONTROL (20)

ADVERSE D03-0903-PANELS/

Instrumentation SEISMIC 0039 and Control YES N/A 7/30/2012 N/A CONDITIONS 0039Control Panel PanelsIand 903-39 Panels and (NO PHOTO 9Cabinets ALLOWED)

Table E-2 Page 6 of 9 E-9

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IF NOT TRACKING STATUS /

COMPONENT EQUIPMENT ACCESSIBLE MILESTONE NUMERIN STION ID DESCRIPTION CLASS (Y/N)

ACCESSIBLE, COMPLETION NUMBER INSPECTION WHY?

(IR No.)

RESULTS (20)

NO OTHER CONTROL (20)

ADVOTERS CPNEL Instrumentation ADVERSE D03-0923-PANELS/

and Control YES N/A 7/30/2012 N/A SEISMIC 0005 Control Panel CONDITIONS Panels and(NPHT 923-5 Cabinets (NO PHOTO ALLOWED)

CONTROL (20)

D03-2253-PANEL DG Instrumentation and Control Yes N/A 1Q2013 1427705 Open 0010 Metering and Pnl n

Relay Cabinet Canets Cabinets CONTROL (20)

Thumbscrews.

D03-2253-PANEL/DG Instrumentation May require 0021 Excitation and Control Yes screwdriver to 1Q2013 1427705 Open Panels and Cabinet Cabinets open.

C (20)

This is a HPCI/Instrumentation switch, not a IR 1440230 D03-2380-Turbine and Control No panel.

4Q2019 WO Open PSH Pressure and Cnt Inspection will 654449 Switch High Cabinets require some disassembly.

Table E-2 Page 7 of 9 E-1 0

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IF NOT TRACKING STATUS /"

COMPONENT EQUIPMENT ACCESSIBLE MILESTONE NUMBER SPECTION ID DESCRIPTION CLASS (Y/N)

ACCESSIBLE, COMPLETION NUMBER INSPECTION WHY?

(IR No.)

RESULTS Tools required.

Internal inspection of DISTRIBUTION (20) mountings will D03-7838-1 PANELS/

Instrumentation require

-P06 Distribution and Control Yes removal of 1Q2013 1427705 Open Panels and cover over Cabinets breakers (similar to home breaker cabinet)

Tools required.

There are two panels at this point. The larger of the two can be CONTROL (20) opened. The smaller PANEl] Unit 3 Instrumentation smaller (mounted on D03-DGCP Diesel and Control Yes the right side) 1Q2013 1427705 Open Generator Panels and cannotbe Control Panel Cabinets opened without the use of tools.

The panel label is located on the smaller panel.

Table E-2 Page 8 of 9 E-11

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IF NOT TRACKING STATUS /

COMPONENT EQUIPMENT ACCESSIBLE MILESTONE NUMBER INSPECTION IDDESCRIPTION CLASS (Y/N)

ACCESSIBLE, WHY?

(IR No.)

RESULTS D03-NGC CONTROL (20)

(This is PANEL Unit 3 Instrumentation assumed to Neutral and Control Yes N/A 1 Q2013 1427705 Open be EPN 3-Grounding Panels and 6600-NGT)

Cabinet Cabinets INSTRUMENT NO OTHER D03-2203-RACKS/

(18)

ADVERSE 003-InSt Instruments on YES N/A 7/30/2012 N/A SEISM

.0070A Instrument RcsSEISMIC Rack 2203-70A CONDITIONS INSTRUMENT D03-2203-RACKS/

(18) 003A InSt Instruments on Yes N/A 1Q2013 1427705 Open 0073A InstrumentRak Rack 2203-73A Racks INSTRUMENT D03-2253-RACKS/

(18)

May require a 0084 InSt Instruments on Yes screwdriver to 1 Q2013 1427705 Open 0084 Instrument Racks open.

Rack 2253-8411*I Table E-2 Page 9 of 9 E-12

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 F

Peer Review Report This appendix includes the Peer Review Team's report, including the signed Peer Review Checklist for SWEL from Appendix F of the EPRI guidance document. (Ref. 1)

F-1

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Peer Review Report for Near Term Task Force (NTTF) Recommendation 2.3 Seismic Walkdown Inspection of Dresden Nuclear Station Unit 3 October 24. 2012 Prepared by Peer Reviewers Bruce M. Lory (Team Leader)

Walter Diordievic Tribhawan K. Ram Bruce M. Lory 10/24/2012 Peer Review Team Leader Certification Signature Date Sheet 1 of 12 F-2

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IIntroduction 1.1 OVERVIEW This report documents the independent peer review for the Near Term Task Force (NTTF) Recommendation 2.3 Seismic Walkdowns performed by Stevenson &

Associates (S&A) for Unit 3 of Dresden Station. The peer review addresses the following activities:

Review of the selection of the structures, systems, and components, (SSCs) that are included in the Seismic Walkdown Equipment List (SWEL).

Review of a sample of the checklists prepared for the Seismic Walkdowns & Walk-Bys Review of the decisions for entering the potentially adverse conditions in to the plant's Corrective Action Plan (CAP)

Review of any licensing basis evaluations Review of the final submittal report 1.2 PEER REVIEWERS The peer reviewers for the Dresden Unit 3 Plant are Messrs. Walter Djordjevic, Bruce Lory, and Tribhawan K. Ram, all of S&A. Mr. Lory is also designated the peer review Team Leader. Other than a peer review of "in progress" seismic walkdown inspections, none of the aforementioned engineers were directly involved in the seismic walkdown inspection of equipment so that they could maintain their independence from the project.

Mr. Djordjevic has an advanced degree structural engineer and has over thirty years of nuclear seismic experience and has been trained as a Seismic Capability Engineer (EPRI SQUG training), EPRI IPEEE Add-on, Seismic Fragility and Seismic Walkdown Engineer (SWE) training. Mr. Lory is a mechanical engineer with 33 years of experience, has been trained as a Seismic Capability Engineer (EPRI SQUG training), is instructor of the Fundamentals of Equipment Seismic Qualification training course for EPRI, and is the co-instructor of the Fukushima Seismic Walkdown training course in response to NTTF 2.3. Mr. Ram is an advanced degree nuclear engineer with over 25 years of nuclear power plant experience. Mr. Lory led the seismic peer review activities and Mr. Djordjevic led the SWEL selection peer review. All peer review activities were performed by both engineers, with the exception of the peer review of the Dresden-2 SWEL. Resumes for the peer reviewers are included in Appendix A of the report.

1.3 SWEL DEVELOPMENT The SWEL development was performed by Mr. Tony Perez of S&A. The peer review of the SWEL development was concurrent with the.SWEL development and any revisions to the SWEL after initial plant acceptance were peer reviewed before approval. The Sheet 2 of 12 F-3

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 completed SWEL Peer Review Checklist is found in Attachment 1. The discussion for the SWEL development peer review is found in Section 2.

1.4 SEISMIC WALKDOWN INSPECTION The peer review of the seismic walkdown inspection started on July 16, 2012 with a peer check of the actual walkdowns Dresden Unit 2 by Mr. Bruce Lory. Mr. Lory joined the walkdown team for a portion of the day's planned walkdowns to observe the conduct of walkdowns and adherence to the Seismic Walkdown Guidance (SWG)1. An interview was conducted by Messrs. Djordjevic and Lory with the SWE inspection team on September 7, 2012 after review of a sample of the Unit 3 Seismic Walkdown Checklists (SWC) and Area Walk-By Checklists (AWC) to ascertain the quality and procedural compliance with the SWG. The discussion of the sample SWC and AWC is provided in Section 3.

1 Seismic Walkdown Guidance For Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, EPRI Report 1025286, June 2012.

Sheet 3 of 12 F-4

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 2Peer Review - Selection of SSCs 2.1 PEER REVIEW ACTIVITY - SELECTION OF SSCs The guidance in EPRI Technical Report 1025286, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, dated June 2012 {Reference 1), Section 3: Selection of SSCs was used as the basis for this review.

This peer review was based on reviews of the following documents:

UFSAR chapters 6 and 9 SWEL 1 List P&IDs M-362 and M-373: Fuel Pool Cooling System This peer review was based on interviews with the following individual(s) who was (were) directly responsible for development of the SWEL:

Tony Perez This peer review utilized the checklist shown in Reference 1 Appendix F: Checklist for Peer Review of SSC Selection.

2.2 UNIT 3 SWEL I DEVELOPMENT For SWEL 1 development, the following actions were completed in the peer review process:

1.

Verification that the SSCs selected represented a diverse sample of the equipment required to perform the following five safety functions:

A.

Reactor Reactivity Control (RRC)

B.

Reactor Coolant Pressure Control (RCPC)

C.

Reactor Coolant Inventory Control (RCIC)

D.

Decay Heat Removal (DHR)

E.

Containment Function (CF)

This peer review determined that the SSCs selected for the seismic walkdowns represent a diverse sample of equipment required to perform the five safety functions. This conclusion was based on a review of UFSAR chapters 6 and 9, and SWEL 1 which determined that all five safety functions (RRC, RCPC, RCIC, DHR, and CF) are adequately represented.

Sheet 4 of 12 F-5

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167

2.

Verification that the SSCs selected include an appropriate representation of items having the following sample selection attributes:

A.

Various types of systems B.

Major new and replacement equipment C.

Various types of equipment D.

Various environments E.

Equipment enhanced based on the findings of the IPEEE F.

Risk insight consideration This peer review determined that the SSCs selected for the seismic walkdowns include a sample of items that represent each attribute/consideration identified above. The justification for this conclusion is: a) Based on a review of UFSAR chapters referenced above and the SWEL 1 list, it was determined that appropriate variety of equipment and systems are represented (e.g., EDG, EDG Fuel Oil Transfer, EDG Cooling Water, LPCI, HPCI, Batteries, Battery Chargers, Low and Med Vol Switchgear and MCCs); b) The "New or Replace" equipment are indicated as such; c) A variety of location environments are included: e.g., MCCs (TB and RB), Pumps (TB and RB), Tanks and Heat Exchangers (TB and RB), and Valves (RB @ EL 476.5, 517.5, and 570); d) The IPEEE Enhancement related equipement is indicated as such; and e) The risk quantification has been included in the "Comments" column.

Note: Because of accessibility reasons, some equipment has appropriately been deferred to Outage.

2.3 UNIT 3 SWEL 2 DEVELOPMENT For SWEL 2 development, the following actions were completed in the peer review process:

1.

Verification that SFP related items were considered and appropriately added to SWEL 2.

This peer review determined that there were no spent fuel pool cooling system Seismic Category 1 items. This determination is based on a review of FSAR chapter 9 and Fuel Pool Cooling System P&IlDs M-362 and M-373.

2.

Verification that appropriate justification was documented for spent fuel pool related items that were not added to SWEL 2.

This peer review determined that an appropriate level of justification was documented for having no items on SWEL 2. The justification for not including any Seismic Category I Structure has appropriately been documented in the interim Sheet 5 of 12 F-6

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 report. There are no rapid drain down related components in SWEL 2. Appropriate justification for this item is included in the interim report as well.

2.4 PEER REVIEW FINDINGS - SELECTION OF SSCs This peer review found that the process for selection for SWEL 2 SSCs was consistent with the process outlined in Reference 1 Section 3: Selection of SSCs.

The peer review checklist for the SWEL is contained in Attachment 1 of this document.

This peer review resulted in no additional findings.

2.5 RESOLUTION OF PEER REVIEW COMMENTS - SELECTION OF SSCS All comments initiated through the peer review process were minor and were resolved.

There are no outstanding issues that require resolution.

2.6 CONCLUSION

OF PEER REVIEW - SELECTION OF SSCS This peer review concludes that the process for selecting SSCs to be included on the seismic walkdown equipment list appropriately followed the process outlined in Reference 1, Section 3: Selection of SSCs. It is further concluded that the SWEL sufficiently represents a broad population of plant Seismic Category 1 equipment and systems to meet the objectives of the NRC 50.54(f) Letter.

Sheet 6 of 12 F-7

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.' RS-12-167 3Review of Sample Seismic Walkdown & Area Walk-Bys Checklists 3.1 OVERVIEW After review of the SWCs and AWCs, an interview was conducted by Messrs. Djordjevic and Lory with the SWE inspection team on September 28, 2012 in accordance with the SWG requirements to discuss and clarify completion of the SWE, AWC and licensing basis evaluations. It was concluded that the walkdown team performed their assessments and evaluations properly.

3.2 SAMPLE CHECKLISTS Table 3-1 lists the SWC and AWC samples which represent 12% of the SWCs and 24%

of the AWCs. The sample includes the equipment inspected during the peer review and other equipment items from other classes to introduce diversity to the sampling procedure.

Table 3-1. Table of SWC and AWC Samples from Seismic Walkdown Inspection for Unit 3 Equipment No.

(GIP)

Walkdown Item Location Observations Class D03-5741-7 Control Room Turbine Bldg, None noted 0048BV72 Ventilation SW Supply EL 534 ft Valve D00-9400-11 Control Room Turbine Bldg, None noted 0102-R15 Ventilation Refrig EL 534 ft Condensing Unit D00-9400-9 Control Room Turbine Bldg, None noted 0104BF05 Ventilation AFU EL 534 ft Booster Fan D00-ACP 20 Control Panel Unit 2/3 Turbine Bldg, None noted Aux Control Panel EL 504 ft D03-0302-8 CRD Backup Scram.

Reactor, Recommended that the comment 0019AV27 SV Bldg. EL 517 regarding the missing support ft clamp on copper pipe near Valve 3-302-20B (IR.1395804), be moved from question 11 to the comments section of the SWC, since the comment does not affect the safety function of the CRD Backup Scram SV.

D03-0302-18 CRD East Bank SDV Control Rm.,

None noted 0082B-LS Tank Level Switch EL 534 ft.

Sheet 7 of 12 F-8

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment No.

(GIP)

Walkdown Item Location Observations Class D03-0302-18 CRD East Bank SDV Reactor None noted 0082B-LT Tank Level Transmitter Bldg. EL 517 ft D03-0903-20 Control Panel 903-15 Control Rm.,

None noted 0015 EL 534 ft.

D03-0903-20 Control Panel 903-28 Turbine Bldg, None noted 0028 EL 517 ft D03-1501-5 CCSW Pump A Turbine Bldg, None noted 0044AP30 EL 495 ft D03-6 LPCI/LPCI Injection Reactor None noted 1502A-Pump Bldg., EL P30 476 ft D03-LPCI Heat Exchanger Reactor None noted 1503A-Bldg., EL 115 476 ft Area Walkdown Description Observations AWC-U3-01, Cntrl Rm.

(near 903-28)

No concerns AWC-U3-02, AEER Rm.

(near 903-28)

No concerns AWC-U3-03, Battery Charger Rm. - El. 38 Ft.

No concerns AWC-U3-04,, Turbine Bldg.

(near 3A charger)

No concerns AWC-U3-05, Battery Rm.

(near 903-28)

No concerns AWC-U3-26, Reactor Bldg.

- SDC Pump Rm.

No concerns AWC-U3-27, Reactor Bldg.-

No concerns TIP Rm.

AWC-U3-27, Reactor Bldg.-

No concerns Torus Catwalk 3.3 EVALUATION OF FINDINGS There were no findings of seismic significance. The scaffolding and seismic housekeeping procedures were reviewed by the SWEs to gain a full understanding of the plant practices. There were no significant concerns noted in Unit 3 with regard to scaffold erection. The scaffolds were properly tied off and braced, and properly tagged with respect to the procedure.

With regard to seismic housekeeping, there were instances found of open S-hooks in the plant. Generally, if they were found to not to contribute to a credible seismic interaction they were adjudged acceptable and not dispositioned to an IR. Similarly, if an item Sheet 8 of 12 F-9

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 posed a potential proximity hazard to a vital component and it was removed "on the spot" in accordance with the housekeeping procedure, then it was not dispositioned to an IR. However, in all instances the Seismic Walkdown Checklist (SWC) documented the details of the occurrence, the action taken (if any) and the conclusion rendered by the SWE inspectors. Most importantly, if the situation warranted a correction then an IR was specifically generated for that component or area in the case of area walk-bys.

The peer review of the SWCs included a recommendation for panels/cabinets which could be opened and inspected for loose or missing component mounting hardware. It was recommended that a comment be put under question 11 to denote what were the results of the internal inspection. If no loose or missing mounting hardware was found or if mounting hardware was found loose/missing, a sentence to that affect should be made in the SWC.

Sheet 9 of 12 F-10

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 4 Review of Licensing Basis Assessments Because none of the issues identified during the Seismic Walkdowns or Area Walk-Bys were determined to be "Potentially Adverse Seismic Conditions, no Licensing Basis Evaluations were performed.

Sheet 10 of 12 F-11

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Review Final Submittal Report & Sign-off The final submittal report has been reviewed by Messrs. Bruce M. Lory and W. Djordjevic and found to meet the requirements of the EPRI 1025286 - Seismic Walkdown Guidance (Reference 1).

Sheet 11 of 12 F-12

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 6References

1.

EPRI Technical Report 1025286, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, dated June 2012.

See Section 9 of report for additional references.

Sheet 12 of 12 F-1 3

- Peer Review Checklist for SWEL Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 2 Peer Review Checklist for SWEL Instructions for Completing Checklist This peer review checklist may be used to document the review of the Seismic Walkdown Equipment List (SWEL) in accordance with Section 6. The space below each question in this checklist should be used to describe any findings identified during.the peer review process and how the SWEL may have changed to address those findings. Additional space is provided at the end of this checklist for documenting other comments.

1. Were the five safety functions adequately represented in the SWEL 1 selection?

OODrolriate eLuiOment has Leen included to maintain the flee safeto functions: RREI L 01 RORL11MOR00013 and OF YM NO

2. Does SWEL 1 include an appropriate representation of items having the following sample selection attributes:

a. Various types of systems?

Various system types (e.g., HPCI, LPCI, ADS/SRV, CRD, DG, RBCCW, SW, and support systems such as MCCs and distribution panels) have been included.

b. Major new and replacement equipment?

"New or Replace" equipment (from the major MOD list) are included in the list.

c. Various types of equipment?

The equipment represents all required 21 types except 13 and 19. The screenings

1. 1, #2, and #3 resulted in no equipment in the latter two categories.

d. Various environments?

Appropriate environments (e. g., REACTOR and TURBINE buildings) have been included.

YZ NE-Y NEI YZ NEI YN NEI

e. Equipment enhanced based on the findings of the IPEEE (or equivalent) program?

Included as indicated in the column, "IPEEE Enhancement."

F-14

- Peer Review Checklist for SWEL Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 2 Peer Review Checklist for SWEL

f. Were risk insights considered in the development of SWEL 1?

YEE NEI Ris[l quantifications provided in the [Commentsilcolumn

3. For SWEL 2:

a. Were spent fuel pool related items considered, and if applicable included in Y[

NEI SWEL 2?

There is no equipment on SWEL2.

b. Was an appropriate justification documented for spent fuel pool related items not YZ NE]

included in SWEL 2?

Provided in the Submittal Report

4. Provide any other comments related to the peer review of the SWELs.

All items on SWEL I have a Seismic Licensing basis.

5. Have all peer review comments been adequately addressed in the final SWEL?

YO NEI Tr71K C~,

Peer Reviewer #1: To Ram Date: D12flY12 Peer Reviewer #2: Walter Diordievic 4 1 Date: [112[7112 F-1 5

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 G

IPEEE Vulnerability Status Table G-1 lists the plant improvements, the IPEEE/SQUG proposed resolution, the actual resolution and resolution date.

G-1

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Table G-1. IPEEE Improvements Status Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Hydraulic Control

1) No seismic capacity

1) No actions required. Upon

1) Condition resolved in

1) 6/1997 Unit based on earthquake further review, Hydraulic original IPEEE report.

D02-0305 ------ experience or generic Control Unit consists of H20 seismic testing ruggedness accumulator and valves which D03-0305 data is available for class 0 are in the earthquake

2) The worst case gas bottle 2)1/4/2000 H20 equipment.

experience and generic seismic with a single chain has been

2) Nearby gas bottles are testing ruggedness data. Rack verified for adequacy based restrained by only a single load path and anchorage are on seismic testing (Ref. NDIT

chain, separately analyzed and are No. SEC-DR- 00-001).

acceptable. CRD piping and scram header very well seismically supported.

RESOLUTION #11

2) Gas bottles need a second chain near the bottom.

RESOLUTION #1 Motor Control MCCs are not anchored to Provide positive anchorage Condition has been deleted 3/31/2000 Centers the equipment pad.

system.

from the Program. The MCCs.

D02-7820 RESOLUTION #9 power the Refuse Pumps.

M05 The Refuse Pumps are not being credited for Isolation D03-7830-02*

Condenser makeup for the M05 loss of dam failure scenario; therefore, the MCCs are not required for safe shutdown or included in the SPEL.

Table G-1 Page 1 of 33 G-2

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Bus and Panel

1) Locker/storage cabinet

1) Positively anchor locker or

1) Locker/storage cabinet

1) 5/1996 D02-8302A ----- located next to bus on rear re-locate it.

relocated. Condition M05 side.

RESOLUTION #5 resolved in original IPEEE

2) Seismic demand exceeds

2) Develop realistic, median report.

capacity.

amplified floor spectra to 2) potentially reduce seismic

2) Realistic median centered 10/30/2003 demand to an acceptable level, response spectra were not useful. Modification added RESOLUTION #11 bracing to improve capacity.

Ref. EC 341875 & WO 558649 Motor Control Adjacent MCC 35-1 is Anchorage modification needed.

Anchorage has been 5/30/2003 Center inadequately anchored (only RESOLUTION #9 modified. Ref. EC 7583 & WO D03-7839-2----

tack welded in rear).

99103698 M05 Bus and Panel Seismic demand exceeds Develop realistic, median Realistic median centered 10/30/2003 D02-83125 ----- capacity.

amplified floor spectra to response spectra were not P06 potentially reduce seismic useful. Modification added demand to an acceptable level, bracing to improve capacity.

RESOLUTION #11 Ref. EC 341875 &

WO 558649 Bus and Panel

1) Seismic demand exceeds 1&2) Develop realistic, median 1&2) Realistic median Unit 2 D03-8303A ----- capacity.

amplified floor spectra to centered response spectra 10/30/2003 M05

2) Embedded angle pullout potentially reduce seismic were not useful. Modification Unit 3 D03-8303B ----- capacity is insufficient to demand to an acceptable level, added bracing to improve 11/5/2003 M05 hold down the cabinet RESOLUTION #11 capacity. Ref. EC 341875 &

D03-83125 ----- during the event of SSE.

WO 558649 (Unit 2)

P06 EC 341876 &

D02-8302B -----

WO 558699 (Unit 3)

M05 Table G-1 Page 2 of 33 G-3

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Switchgear Spare Breakers are too Relocate spare breakers A walkdown confirmed that 1/7/2003 D02-67241 ---- S35 close RESOLUTION #5 the spare breakers have been relocated.

Motor Control Overhead unanchored Positively secure emergency A walkdo.wn confirmed that 5/6/1999 Center emergency light # 251C

light, the emergency light has been D02-7829-8 ----

(battery powered).

RESOLUTION #3 positively secured.

M05 Panel A 6' long (tall) cable tray Determine whether or not Condition resolved in original 4/1996 D02-8302B-1---

raceway system hanger panel(s) contains essential IPEEE report. Panels do not P06 which is rod hung and relays. If it does, brace contain essential relays; D02-83125-1---

laterally unbraced may raceway to preclude impact therefore, no actions are P06 sufficiently displace to potential.

required to preclude impact impact the Panel.

RESOLUTION #6 potential.

Panel

1) Lights overhead have

1) Close Open S-Hooks.

1) Condition resolved in

1) 5/1996 D03-8303A1 open hooks.

RESOLUTION #2 original IPEEE report. The S-P06

2) D.G. stack rises adjacent

2) Evaluate seismic structural hooks have been closed.

to panel and is a potential integrity of exhaust stack

2) The seismic structural

2) 3/26/1998 RESOLUTION #6.

integrity is acceptable based on evaluation (Ref. SEWS, Rev. 1).

Table G-1 Page 3 of 33 G-4

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Motor Control

1) Nearby gas bottles

1) Gas bottles need a second

1) The worst case gas bottle 1)1/4/2000 Center secured by only 1 chain, chain near the bottom.

with a single chain has been D02-7829-2----

2) Lights overhead have RESOLUTION #1 verified for adequacy based M05 on seismic testing (Ref. NDIT open hooks.

2) Close open S-hooks.

No. SEC-DR-00-001).

3) Unrestrained flammable RESOLUTION #2 storage cabinet adjacent to

3) Positively anchor cabinet or

2) The S-hooks have been

2) 5/1996 re-locate, closed. Condition resolved in RESOLUTION #5 original IPEEE report.

3) The cabinet has been

3) 5/1996 relocated. Condition resolved in original IPEEE report.

Panel

1) Lights overhead have

1) Close open S-Hooks.

1) The S-hooks have been

1) 5/1996 D03-8303B1 ----

open hooks.

RESOLUTION #2 closed. Condition resolved in P06

2) Emergency'light #329

2) Positively secure emergency original IPEEE report.

D03-9802-A ----

(battery powered) not light.

2) Awalkdown has confirmed

2) 5/6/1999 P06 secured.

D03-9802-B ----

RESOLUTION #3 that the light has been P06 positively secured.

Panel Lights overhead have open Close open S-Hooks.

The S-hooks have been 5/1996 D03-8303A1-1--

hooks.

RESOLUTION #2 closed. Condition resolved in P06 original IPEEE report.

D03-83125-3---

P06 Table G-1 Page 4 of 33 G-5

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Motor Control Lights overhead have open Close open S-Hooks.

The S-hooks have been 5/1996 Center and Panel hooks.

RESOLUTION #2 closed. Condition resolved in D02-7828-3 ----

original IPEEE report.

M05 D02-7829-4 ----

M05 D03-7838-2 ----

M05 D03-7838-3 ----

M05 D02-2202-0073AP05 D02-2202-0073BP05 D03-2203-0006 D02-2252-0084-P05 Table G-1 Page 5 of 33 G-6

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Motor Control Nearby gas bottles only Gas bottles need a second

1) The worst case gas bottle 1)1/4/2000 Center and Panel restrained by a single chain chain near the bottom.

with a single chain has been D02-7828-7RESOLUTION

1. 1 verified for adequacy based M05 on seismic testing (Ref. NDIT D03-7838-1-1--

No. SEC-DR-00-001).

P06 D02-9205-A ----

V05

2) The NDIT identified the

2) 1/7/2003 D02-9205-B ----

gas bottle by MCC D03-V05 7838-1-1 as much smaller D02-9206-A ----

and not represented by the V05 test gas bottle; therefore, D02-9206-B ----

required a lower support and V05 chain. A walkdown confirmed D03-9206-A ----

that the gas bottle has been V05 relocated away from the D03-9206-B ----

MCC.

V05 Motor Control

1) Nearby gas bottles only

1) Gas bottles need a second

1) The worst case gas bottle 1)1/4/2000 Center and Panel restrained by a single chain, chain near the bottom.

with a single chain has been D02-83250 ----- 2) Anchorage capacity less RESOLUTION #1 verified for adequacy based M05 than demand on seismic testing (Ref. NDIT

2) Develop realistic, median No. SEC-DR-00-001).

amplified floor spectra to potentially reduce seismic

2) Per Attachment 2 to

2) 3/30/2000 demand to an acceptable level, response to NRC RAI, Dresden Letter PSLTR #00-RESOLUTION #11 0068, no actions are required.

Table G-1 Page 6 of 33 G-7

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Motor Control

1) Nearby gas bottles only

1) Gas bottles need a second

1) The worst case gas bottle 1)1/4/2000 Center and Panel restrained by a single chain, chain near the bottom.

with a single chain has been D02-9802-A----

2) Anchorage capacity less RESOLUTION #1 verified for adequacy based P06 than demand on seismic testing (Ref. NDIT

2) Develop realistic, median No. SEC-DR-00-001) amplified floor spectra to potentially reduce seismic

2) Per Attachment 2 to

2) 3/30/2000 demand to an acceptable level, response to NRC RAI, Dresden Letter PSLTR #00-RESOLUTION #11 0068, no actions are required.

Panel The internal cable tray Restrain cross-members by Proposed modifications to Unit 2 D02-0902-0015 raceway system hanger is "tying" them to front and back restrain cross-members have 10/29/2001 D02-0902-0017 rod hung and transversely panels. This will preclude been completed.

Unit 3 D02-0902-0019 unrestrained. It can impact hazard as well as Modification EC 7526 &

10/22/2002 D02-0902-0036 displace sufficiently to connecting front and rear WO 558649 (Unit 2) and D03-0903-0015 impact the Panel which has portions of the main control EC 7527 &

D03-0903-0017 only 1" clearance from the board increasing anchorage WO 558699 (Unit 3)

D03-0903-0019 end of the cross-member.

capacity seismic margin. Crimp D03-0903-0036 Cabinets do contain light hooks.

D02-0902-0004 essential relays.

RESOLUTION #6 D03-0903-0004 Table G-1 Page 7 of 33 G-8

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Panel

1) Located adjacent to a

1) Insert neoprene or similar

1) Neoprene padding has 1)

D03-0903-0046 conduit pull-box and it is an soft material between pull-box been installed between the 12/17/1999 impact hazard.

and cabinet to reduce pull-box and cabinet in

2) Adjacent tool box significance of impact.

accordance with WR adjudged a hazard.

RESOLUTION #6 990056423 to reduce

2) Re-locate storage tool box.

significance of impact.

2) The tool box has been

2) 5/1996 RESOLUTION #5 relocated. Condition resolved in original IPEEE report.

Panel and Adjacent emergency lights Positively restrain emergency A walkdown has confirmed 5/6/1999 Transformer

1. 293, #299, #220, and #313 lights.-

that the lights have been D02-2202-0008 (battery powered) are RESOLUTION #3 positively restrained. Light D02-7229 ---

missing straps or are

1. 299 should be #229.

T10 1 unrestrained.

D02-0902-0041 Battery Charger Overhead emergency light Positively restrain emergency A walkdown has confirmed 5/6/1999 D03-9802-

1. 329 (battery powered) is

light, that the Emergency light 3BNEGBO5 shelf mounted and RESOLUTION #3

1. 329 has been positively D03-9802-unrestrained, restrained.

3BPOSB05 1 Actual equipment number is D02-7329 ------

T10 Table G-1 Page 8 of 33 G-9

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Switchgear

1) Overhead trolley hoist is

1) Use a clamp or similar

1) Condition for 2-7328

1) 4/1996 for D02-7328 ------ an impact hazard and needs device to prevent the hoist from resolved in original IPEEE 2-7328.

S35 to be parked.

rolling freely.

report based on confirmation D02-7329 ------ 2) Emergency light #299 RESOLUTION #4 of no essential relays in the S35 (battery powered) not 2switchgear.

No actions are restrained,

2) Secure emergency light.

required for 2-7329 as the RESOLUTION #3 hoist is a tool that has an

3) Anchorage capacity less annual preventative than demand

3) Develop realistic, median annal preventive amplified floor spectra to maintenancntion (P potentially reduce seismic 184453-01 controlld b demand to an acceptable level.

Procedure MA-DR-MM 58001 that checks the locking RESOLUTION #11 device..

2) The light has been

2) 5/6/1999 positively restrained. The correct light number is 229.

3)

3) Per Attachment 2 to 03/30/2000 response to NRC RAI, Dresden Letter PSLTR #00-0068, no actions are required.

Switchgear Overhead trolley hoist, open

1) Use a clamp or similar

1) Condition resolved in 1)4/1996 D03-7338 ------ S-hook on overhead device to prevent the hoist from original IPEEE report. No S35 florescent light and racking rolling freely.

actions are required since it crank hanging between RESOLUTION #4 has been verified that there breaker and transformer are are no essential relays within all impact hazards.

2) Close open S-Hooks.

the switchgear.

RESOLUTION #2

2) The S-Hooks have been 2)5/96

3) Secure or re-locate crank.

closed. Condition resolved in RESOLUTION #5 original IPEEE report.

Table G-1 Page 9 of 33 G-10

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Switchgear Overhead trolley hoist, open

1) Use a clamp or similar

1) Condition resolved in

1) 4/1996 D03-7339 ------ S-hook on overhead device to prevent the hoist from original IPEEE report. No S35 florescent light, racking rolling freely.

actions are required since it crank hanging between RESOLUTION #4 has been verified that there breaker and transformer and are no essential relays within adjacent unanchored 4KV

2) Close open S-Hooks.

the switchgear.

gear box locker are all RESOLUTION #2 impact hazards.

3) Secure or re-locate crank.

2) The S-Hooks have been

2) 5/1996 RESOLUTION #5 closed. Condition resolved in

4) Anchor or re-locate locker.

original IPEEE report.

RESOLUTION #5

3) The racking crank has 3) been relocated in accordance with Mod E12-3-95-221 &

WO 95054280. Condition resolved in original IPEEE report.

4)

4) The locker has been 08/11/1995 relocated in accordance with E12-3-95-220 & WO 95054281. Condition resolved in original IPEEE report.

Table G-1 Page 10 of 33 G-11

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Switchgear Safety equipment locker

1) Anchor or re-locate locker.

1) Equipment locker has

1) 5/1996 D03-6734 ------ adjacent to cubicle, spare RESOLUTION #5 been relocated. Condition S35 breakers marginally chained resolved in original IPEEE to wall, and additional

2) Secure or re-locate spare report.

unanchored spare cubicles breakers.

2) Spare breakers have been 2)5/1996 5' away from line-up are RESOLUTION #5 relocated. Condition resolved interaction hazards.

in original IPEEE report.

Panel

1) Panel is not bolted to

1) Determine whether or not

1) Panels D02-2202-70A

1) Unit 2 D03-2202-0070A adjacent panel panel(s) contains essential and D03-2203-70A are bolted 10/29/2001.

D03-2203-0070B

2) Panel D03-0903-0052 is relays. If they do, connect to adjacent Panels D02-Unit 3 D02-0902-0033 missing a bolt and is (bolt) panels together to 2202-70B and D03-2203-9/26/2000 D02-2203-0070 adjacent to Safe Shutdown preclude impact potential.

70B, respectively. Panel D03-D02-2202-0070B Panels D03-2203-70A & B RESOLUTION #8 2203-70B is also bolted to D02-0902-0039 the adjacent panel 903-27 D02-0902-0047

2) Repair/Replace Bolt (Ref. ECN No. 12- 00854E).

D03-0903-0047 RESOLUTION #14 The remaining panels have D03-0903-0032 been bolted to adjacent panels by modification EC 7528 & WO 99134628 (Unit

2) and EC 7529 & WO 99134630 (Unit 3).

2) No actions are required. A subsequent walkdown has

2) 5/6/1999 verified that all bolts are tightened in place.

Table G-1 Page 11 of 33 G-12

Dresden Generating Station Unit 3 12QO108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Panel Panel not bolted to adjacent Determine whether or not The "low boy" console 10/13/2002 D02-0902-0046 "low boy" console.

panel(s) contains essential (economic generation control relays. If they do, connect (EGC) panel) has been (bolt) panels together to retired and removed via preclude impact potential.

modification EC 7998 & WO RESOLUTION #8 99204714.

Panel

1) One anchor projected out

1) The loose anchor has been

1) Condition resolved in

1) 6/1996 D02-0902-0028 and loose.

fixed.

original USI A-46 report. The

2) There is 1/4" gap RESOLUTION #14 loose anchor has been fixed.

between the panel and the

2) Shim the gap to close it.

2) No actions are required. A surface of the concrete and subsequent walkdown found

2) 5/6/1999 panel contains essential RESOLUTION #6 the panel to be true level and relays.

3) Develop realistic, median any gap between the

3) Anchorage capacity less amplified floor spectra to concrete and panel to be than demand.

potentially reduce seismic insufficient to create an demand to an acceptable level, interaction.

RESOLUTION #11

3) Additional evaluation of the 3) panel determined its HCLPF 03/31/2000 capacity to be > 0.3g.

Table G-1 Page 12 of 33 G-13

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Panel

1) Panel is not bolted to

1) Determine whether or not

1) The panel contains

1) 9/26/2000 D03-0903-0033 adjacent panel.

panel(s) contains essential essential relays. Modification

2) There is 1/8" gap relays. If they do, connect EC 7529 & WO 99134630 between the panel and the (bolt) panels together to bolted the panel to adjacent surface of the concrete and preclude impact potential.

panel.

panel contains essential RESOLUTION #8

2) No actions are required. A

2) 5/6/1999 relays.

2) Shim the gap to close it.

subsequent walkdown found the panel to be true level and RESOLUTION #6 any gap between the concrete and panel to be insufficient to create an interaction.

Cooler The attached piping may not Coolers are rod hung and thus Modifications to laterally Unit 2 D03-5746-A ----

have enough flexibility, flexible. Laterally restrain restrain coolers to preclude 10/25/2001.

H15 coolers to preclude piping piping rupture potential have Unit 3 D03-5746-B ----

rupture potential or evaluate been completed. EC 7619 &

10/20/2002.

H15 effects of loss of service water WO 99188333 (Unit 2) and D02-5746-A ----

inventory and loss of cooling EC 18034 & WO 99126056 H15 capability.

(Unit 3).

D02-5746-B ----

RESOLUTION #7 H15 Battery Charger Anchorage is inadequate (2 Equipment has been modified Condition resolved in original 12/23/96 D03-8300--3---

clips),

to improve anchorage (Mod IPEEE report. Modification B05 E 12-3-96-225).

E 12-3-96-225 & WO RESOLUTION #9 96097752 has improved anchorage of the battery charger.

Table G-1 Page 13 of 33 G-14

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Battery Charger Unanchored.

Equipment has been modified Condition resolved in original Unit 2/3 DOO-83250-0---

to improve anchorage (Mod IPEEE report. Battery 01/09/97 B05 E12-0-96-213 & E12-2-96-236).

chargers have been modified Unit 2 D02-83250-2---

RESOLUTION #9 to improve anchorage 01/21/97 B05 (Modifications E12-0-96-213

& WO 96097748 and E12 96-236 & WO 96097749).

Vertical Pump Nozzle loads should be Provide nozzle loads for Pump anchorage evaluations 3/27/98.

D02-1502-A ----

considered in the ANCHOR evaluation, have been performed with P30 evaluation but information RESOLUTION #9 inclusion of nozzle loads D02-1502-B ----

on nozzle loads is (Ref. revision 1 of SEWS for P30 incomplete, pumps).

D02-1502-C ----

P30 D02-1502-D ----

P30 Horizontal Pump Piping vertically supported Provide nozzle loads for Pump anchorage evaluations 3/27/98 D03-1501-but has very little lateral evaluation, have been performed with 0044AP30 restraint and therefore RESOLUTION #9 inclusion of nozzle loads D03-1501-piping loads should be (Ref. revision 1 of SEWS for 0044BP30 considered in evaluating the pumps).

D03-1501-anchorage but information 0044CP30 on nozzle loads is D03-1501-incomplete.

0044DP30 Table G-1 Page 14 of 33 G-15

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Valve Did not meet GIP offset Valve extended operator Calculation CE091.0208 04/14/94 D02-2301-0005-rules.

accelerations from IE79-14 shows all valves have greater V20 piping analysis to be obtained than 0.3g capacity.

D03-2301-0005-and used in the evaluation.

V20 D03-2301-0008-RESOLUTION #11 V20 Valve AOVs are supported off 1/2" Perform more rigorous analysis The 1/2" diameter tubing has 8/2/1999 D02-8501-diameter tubing.

and/or modify support of the been qualified based on 0005AV05

valve, subsequent evaluation (Ref.

D02-8501-DOC ID #5995877).

0005BV05 RESOLUTION #11 Valve The condulet coming from Repair condulet.

Condulet cover has been 12/1997 D02-0302-the valve was open RESOLUTION #14 installed. Condition resolved 0019AV27 exposing the wires.

in original IPEEE report (Work Request 94038586).

Horizontal Pump Unrestrained emergency Positively secure emergency A walkdown has confirmed 5/6/1999 D02-5203 ------ light #209 (battery powered)

light, that the light has been P30 is overhead.

positively secured.

D03-5203-RESOLUTION #3 P30 Table G-1 Page 15 of 33 G--16

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Switchgear

1) Spare breakers are too

1) Relocate spare breakers.

1) The spare breakers have

1) 5/1996 D02-6723 ------

close.

RESOLUTION #5 been relocated. Condition S35

2) Open hooks on light 2)resolved in original IPEEE D02-6724 ------ fixtures is overhead.

report.

S35 RESOLUTION #2

3) Panel 2-6724 is not

2) The S-hooks have been bolted to adjacent panels.

3) Not applicable. Condition 2)oTe Sooksohve b

n

2) 5/1996 resolved in original IPEEE closed. Condition resolved in report.

original IPEEE report.

RESOLUTION #8

3) Condition resolved in

3) 4/12/1996 original IPEEE report. No actions are required. A subsequent walkdown verified that the panels are bolted together.

Switchgear

1) A safety equipment locker

1) Positively anchor locker or

1) The locker has been

1) 5/1 996 D02-67231 ----- immediately adjacent to re-locate it.

relocated. Condition resolved S35 switchgear is an interaction RESOLUTION #5 in original IPEEE report.

D03-67341 ----- hazard.

S35

2) Close upper and lower sight

2) Condition relosved in

2) PCB storage tank behind glass valves to prevent loss of IPEEE, Rev. 1 report. Sight

2) 3/31/2000 switchgear is rod hanger oil if the glass breaks, or.

glass valves have been restrained at mid-height. It restrain bottom of tanks to closed to prevent loss of oil if is a flooding hazard preclude it from moving, the glass breaks.

because of sight glass at bottom of tank and essential RESOLUTION #6 relays inside the switchgear.

Table G-1 Page 16 of 33 G-17

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Panel

1) Overhead heater has only

1) Repair overhead-heater

1) The heater support has

1) 8/15/1997 D03-2203-0073A support rod and should have support.

been repaired in accordance D03-2203-0073B two. Thus, it is an impact RESOLUTION #14 with WR 960044408.

hazard.

2) Close lighting S-hook.

2) The S-hook has been

2) Overhead lighting RN

1. closed.

Condition resolved in

2) 5/1996 oneverhead and is RESOLUTION #2 original IPEEE report.

impact hazard.

3) Seismically evaluate fire

3) Overhead fire line is piping and determine status.

3) No actions are required.

judged not to be seismically RESOLUTION #7 Fire piping has been

3) 8/26/1999 qualied byt Rto It sismcal seismically evaluated to be qualified by SRT. It isf a

adequate (ref. DOC ID#

flooding hazard because of 6012466).

essential relays inside panel.

Valve Suction line of pump (4-1/2" Restrain line so it cannot The suction line of the pump 10/9/2003 D03-0302-in diameter) touches the impose force onto the valve, has been moved away from 0157AV05 valve yoke.

RESOLUTION #6 the valve yoke to preclude interaction. (Ref. WO #468530)

Table G-1 Page 17 of 33 G-18

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Valve

1) Potential impact with

1) Determine piping

1) No actions are required.

1)

D03-1501-nearby piping, grating or displacement from piping Valve 3-1501-32B has been Valve 0032BV20 steel.

analysis and compare to evaluated for its yoke 3-1501-32B D02-1601-0023--

available clearance, displacement and found to be 8/4/1999 V27

2) Valve 2-1601-23 is wti h

vial laac D03-0203-missing a bolt.

RESOLUTION #6 within the available clearance Valve with the grating (Ref. DOG 2-1601-23 0002BV05

2) Install missing bolt.

ID# 5996462). Valve 2-1601-08/14/2003 RESOLUTION #14 23 was replaced per EC 331868 & WO 407776 and Valve Valve 3-0203-2B 3-0203-2B is qualified per per DRE0O-calculation DRE00-0061.

0061 08/23/2000

2) Bolt has been installed in accordance with Work Request 950096788-01.

2) 6/6/1998 Panel Base channel is secured to Modify anchorage to an Anchorage modified to 1/17/2001 D02-2252-0010 floor by 4 friction clips (one acceptable, positive anchorage positive anchorage design via in each corner) design.

EC 7663 & WO 99135802.

Neighboring Neutral RESOLUTION #10 Grounding Cabinet is secured by friction clips.

Table G-1 Page 18 of 33 G-19

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Panel Panel is right against a Determine whether or not The panel has been bolted to 1/24/2002 DOO-NGC column support on one side panel(s) contains essential the adjacent panel and to the and an adjacent panel on relays. If they do, connect column support via the other.

(bolt) panels together to modification EC 7663 & WO preclude impact potential.

99135800.

Insert neoprene or like material between column and panel, or positively secure panel to column.

RESOLUTION #6 Panel Panel is too close to two Determine whether or not The panels contain essential 9/14/2001 D00-2223-0033 adjacent panels that it is not panel(s) contains essential relays. The panels have D00-2223-0041 bolted to.

relays. If they do, connect been bolted together via (bolt) panels together to modification EC 7662 & WO preclude impact potential.

99135801.

RESOLUTION #8 Damper

1) Damper hung in poorly'

1) Repair ductwork.

1) The duct support rod has 1)

D03-5772-0102-supported ductwork (already RESOLUTION #14 been replaced in accordance 10/23/1996 D05 sagging).

2) Close S-Hooks.

with WR 960043286.

2) Overhead light has open RESOLUTION #2

2) The S-hooks have been closed. Condition resolved in

2) 5/1996

_original IPEEE report.

Table G-1 Page 19 of 33 G-20

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Battery Rack

1) There are spaces

1) Tighten battens so they are 1 & 2) Determination of 1 & 2) Unit 2 D02-9802-A ----

between the batteries and snug (1/16" or less gap) or qualified life not required.

03/20/1998 B04 along the front and back of insert spacers to make up the New batteries have been Unit 3 D02-9802-B ----

the batteries.

gaps.

installed in accordance with 04/22/1997 B04

2) The battery cells are RESOLUTION #12 modifications M12-2-95-003 D03-9802-A ---- m&

WOs 97077161 / 97094589 B04 more than 10 years old.

2) Determine qualified life of and D03-9802-B ----

cells or replace.

M12-3-95-003 & WOs B04 RESOLUTION #13 95068434 with proper spacers.

Battery Rack The Styrofoam, on the front Insert "full height" Styrofoam Repairs to insert proper 10/19/1999 D02-8300--BC--

and back, is not full-height spacers, or secure (glue or tie) spacers have been B04 and could easily slip out spacers to rack (or battery completed. Repairs D02-83250 ----- during a seismic event, cells) so that they cannot slide implemented via Engineered B04 out.

Repairs (Ref. DOC ID#

D03-8300--BC--

RESOLUTION #12 6043969).

B04 D03-83250 -----

B04 Table G-1 Page 20 of 33 G-21

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date CCSW Pump Bolt type is not covered by Capacity of Cinch Anchor is Condition resolved in original 12/1997 Cooler the GIP - Cinch Anchor.

based on "Lead Expansion IPEEE report. See preceding D02-5700-Anchor Load Capacity in column for details.

0030AH15 Reactor Building at the D02-5700-Savannah River Site",

0030BH15 Westinghouse Savannah River D02-5700-Company, RTR-2661, Aug. 15, 0030CH15 1989 (Ref. 23). The resulting D02-5700-anchorage capacity was shown 0030DH15 to exceed the design basis D03-5700-seismic demand loads and 0030AH15 Condition is resolved.

D03-5700-RESOLUTION #10 030BH157 D03-5700-0030CH15 D03-5700-0030DH15 Switchgear Spare breakers which are Secure or re-locate spare Spare breakers have been 5/1996 D03-67331 ------ unanchored are potential breakers.

relocated. Condition S35 interaction hazards.

RESOLUTION #5 resolved in original IPEEE report Vertical Tank Tank is supported by ring Evaluate ring foundation.

The ring foundation has been 04/11/1998 D00-3303-A----

foundation.

RESOLUTION #9 qualified based on evaluation T05, D00-3303-B-(Ref. Stevenson &

---T05 Associates Calculation 98Q4006-C-002).

Table G-1 Page 21 of 33 G-22

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Panel Base channel is secured to Modify anchorage to an The panel anchorage has 1/17/2001 D02-2252-0021 floor by 4 friction clips (one acceptable, positive anchorage been modified to a positive in each corner) design.

anchorage design via Neighboring Neutral RESOLUTION #10 modification EC 7663 & WO Grounding Cabinet is 99135802.

secured by friction clips.

Pressure Indicators are supported by Anchor indicators to wall.

Condition has been deleted 3/30/2000 Indicators piping and not attached to RESOLUTION #6 from the Program. The 2/3-4041-1A & 1B wall which could result in pressure indicators are seismic interaction.

associated with Refuse Pumps. The Refuse Pumps are not being credited for Isolation Condenser makeup for the loss of dam failure scenario; therefore, the pressure indicators are not required for safe shutdown or included in the SPEL.

Iso Cond Heat Isolation condenser has no Condition resolved (see S&L No actions are required. The 10/27/1997 Exchangers anchor bolts at outboard calculation 8900-15-EO-S) existing configuration has D02-1302---H15, piers. Load taken by center been verified to be adequate D03-1302---H15 pier.

RESOLUTION # 14 per S&L calculation 8900 RESOLTION#

14EO-S.

Condition resolved in original IPEEE report Table G-1 Page 22 of 33 G-23

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Heat Exchanger Support steel requires Completed Modification of Condition resolved in original

1) 04/03/96 D02-1503-A ----

evaluation, support steel (Mods:

IPEEE report. See preceding

2) 04/03/96 H15

1) E12-2-95-242, WO 96021982 column & respective Work

3) 09/15/96 D03-1503-A ----

2) E12-2-95-243, WO 96021981 Orders.

4) 09/12/96 H15 D02-1503-B ----

3) E12-3-95-258, WO 96030678 H15

4) E 12-3-95-259, WO 96030680 D03-1503-B ----

RESOLUTION #9 H15 Accumulator The accumulator has one Install (repair) missing bolt.

No actions are required.

10/6/1999 D02-4798-A----

bolt missing.

RESOLUTION #14 Upon further review, the A10 accumulator is designed to be installed with one U-bolt.

A subsequent walkdown verified that the U-bolt is in place (Ref. DOC ID#

6034842).

Control Panel /

Neighboring Neutral Modify anchorage to an The anchorage of the Neutral 1/24/2002 DG Exciter Grounding Cabinet is acceptable, positive anchorage Grounding Cabinet has been D03-2252-0021-secured by friction clips.

design.

modified to a positive P06 RESOLUTION #10 anchorage design via EC 7664 & WO 99135800.

D02-2202-0006-Overhead light is only Fix overhead light The light has been secured 5/1996 P06 secured by one chain RESOLUTION #14 properly. Condition resolved in original IPEEE report.

Table G-1 Page 23 of 33 G-24

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Cable Tray &

An enveloping support in the This Condition is resolved by Condition resolved in original 07/01/1996 Conduit Raceway Unit 2 Battery Room area Condition analysis. A limit IPEEE report per calculation Systems was chosen for limited analysis per Section 8.4.8 of 93C2806.4-C-002.

LAR001 analytical review. The Reference 14 was performed support is a 4-tier, rod hung and the hanger passes.

trapeze supporting 4 trays.

Dresden rod fatigue data The support has two obtained from actual cyclic different types of ceiling testing of the Dresden field anchorages: embedded threaded rods including the strut and weldment to weldment anchorage plate from building steel. Loads SEP Project 8050 (Ref. 22) was exceed the allowables for used to evaluate the rods.

the rod fatigue check.

Based on the "Generic Rod Acceptability Curves", it was shown that the Dresden rods will sustain the SSE demand loads.

RESOLUTION #15 Table G-1 Page 24 of 33 G-25

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Cable Tray &

An enveloping support in the This Condition is resolved by Condition resolved in original 07/01/1996 Conduit Raceway Auxiliary Electrical Condition analysis. A limit IPEEE report per calculation Systems Equipment Room was analysis per Section 8.4.8 of 93C2806.4-C-002 LAR004 chosen for limited analytical Reference 14 was performed review. The support is a and the hanger passes.

four tier rod hung trapeze RESOLUTION #15 supporting 4 trays. The support has two different types of ceiling anchorages:

embedded strut and weldment to building steel.

The loads for the embedded strut version exceed the allowables for the vertical capacity check. The loads for the welded attachment to building steel version exceed, by a small amount, the allowables for the rod fatigue check and are considered acceptable.

Table G-1 Page 25 of 33 G-26

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Cable Tray &

The main "spine of the This Condition is resolved by Condition resolved in original 05/1996 Conduit Raceway cables connecting the Condition analysis. A limit IPEEE report.

Systems Reactor building with the analysis per Section 8.4.8 of LAR005 Control room. A large two-Reference 14 was performed bay system carrying 12-44" and the hanger passes.

trays in one bay (one side)

RESOLUTION #15 and 4-44" trays on the other side in a floor-to-ceiling system. The bolting connections at the ceiling connection (anchorage) do not pass the vertical capacity check.

Table G-1 Page 26 of 33 G-27

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Cable Tray &

An enveloping support in the This Condition is resolved by Condition resolved in original 07/01/1996 Conduit Raceway Unit 3 Turbine Building, El.

Condition analysis. A IPEEE report per calculation Systems 538, was chosen for limited redundancy and consequence 93C2806.4-C-002.

LAR006 analytical review. The analysis per Section 8.4.8 of support is a two tier, rod Reference 14 was performed hung trapeze supporting 2 and the hanger passes.

trays. The support Dresden rod fatigue data anchorage is weldment to obtained from actual cyclic building steel. The support testing of the Dresden field loads exceed the allowables threaded rods including the for the rod fatigue check.

weldment anchorage plate from SEP Project 8050 (Ref. 23) was used to evaluate the rods.

Based on the "Generic Rod Acceptability Curves", it was shown that the Dresden rods will sustain the SSE demand loads.

RESOLUTION #15 Table G-1 Page 27 of 33 G-28

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Cable Tray &

An enveloping support in the Use Blume Report methodology The worst case hangers have 05/05/1999 Conduit Raceway Unit 2 Turbine Building, El.

to qualify support for rod been reassessed for actual Systems 517, was chosen for limited fatigue.

tray loadings, spans and LAR007 analytical review. The RESOLUTION #15 configurations. Actual support is a four tier, rod loading and spans were hung trapeze supporting 4 found to be smaller than trays. The support those used in the original anchorage is an embedded assessment. The strut. The support loads assessment (S&A Calculation exceed the allowables for DRE99-0029) showed the the rod fatigue check.

worst case hangers were acceptable without modification.

Table G-1 Page 28 of 33 G-29

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Cable Tray &

An enveloping support in the This Condition is resolved by Condition resolved in original 05/1996 Conduit Raceway Reactor Building, El. 517, Condition analysis. A limit IPEEE report.

Systems was chosen for limited analysis per Section 8.4.8 of LAR008 analytical review. The Reference 14 was performed support is a two bay, three and the hanger passes.

tier/bay, rod hung trapeze Dresden rod fatigue data supporting 1 tray/tier. The obtained from actual cyclic support has two different testing of the Dresden field types of ceiling anchorages:

threaded rods including the embedded strut and weldment anchorage plate from weldment to building steel.

SEP Project 8050 (Ref. 23) was The loads for the embedded used to evaluate the rods.

strut version exceed the Based on the "Generic Rod allowables for the vertical Acceptability Curves", it was capacity check. The loads shown that the Dresden rods for the welded attachment to will sustain the SSE demand building steel version loads.

exceed the allowables for the rod fatigue check.

Cable Tray &

The support is a 1/2" field Determine actual weight per Outliner Resolved. Actual 03/16/1998 Conduit Raceway threaded rod trapeze foot of the bus duct and weight per foot of the conduit Systems supporting 16" dia. bus duct, compare to the 98 lbs/ft.

duct is < 20 lbs/ft compared LAR009 24" to "top tier". The limiting capacity.

to 98 lbs/ft capacity (NDIT seismic capacity based on RESOLUTION #15 No. SEC-DR-98-046).

rod fatigue is 98 lbs/ft. The actual weight (amount of cable inside the conduit) is currently unknown.

Table G-1 Page 29 of 33 G-30

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Unit 2 Turbine The hangers at the entrance Determine if block wall capacity The wall capacity is no longer 11/15/1999 Building (including to the turbine building, east needs to be evaluated. If so required since the cable tray DIG Room), El.

of the truck bay, are rod determine the block wall is not supported off the wall 517 RACE010 hung on one side and bolted capacity.

per Doc ID 6065125. The to a strut embedded in a RESOLUTION #15 cable tray has been verified block wall on the other side.

to be adequate per the resolution to LAR007.

Diesel fuel Oil Sight glass interaction issue.

Perform additional evaluation.

Additional evaluation found 10/28/1996 Storage Day Tank RESOLUTION #6 the sight glass to be DOO-5202-T05 seismically adequate and there is no interaction issue (Ref. Rev. 1 of SEWS)

Drywell/Torus 3g analysis shows yoke Evaluate actual demand The valves have been 8/4/1999 Nitrogen Makeup overstress.

accelerations.

evaluated for actual demand Valves D02-1601-RESOLUTION#1 1 accelerations and found to be 0057-V20 and seismically adequate (Ref.

D03-1601-0057-DCC ID# 5996462).

V20 General Nearby gas bottle Revise Procedure DHP 0220-Procedure DHP 0220-02 has 7/30/2002 interaction. Procedure DHP 02 to address to address gas been superseded by 0220-02.

bottle interaction concerns.

Procedure SA-AA-122.

RESOLUTION #1 General Inadequate seismic Develop a new procedure or Procedure DAP 03-20, 6/7/2000 housekeeping procedure.

revise housekeeping procedure "Restraint of Portable DAP 03-11.

Equipment" has been revised RESOLUTION #5 to address seismic housekeeping concerns.

Table G-1 Page 30 of 33 G-31

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Hydrogen Seal Oil Anchorage is inadequate.

Provide positive anchorage.

The panels' anchorage has Unit Panels D02-2257-been modified to positive 201/12/2001 7 and D03-2253-7 anchorage. Modification Unit 3 DCPs 9900205 (EC 7546 &

04/06/2000 WO 99102056) for Unit 2 and 9900204 (EC 7545 & WO 99102057) for Unit 3 Generator Core Monitors not anchored or Provide positive anchorage or The monitors have been Unit 2 Monitors D02-restrained have potential for restrain the monitors.

restrained by modification 01/12/2001 5341-15 and D03-hydrogen leakage.

DCPs 9900205 (EC 7546 &

Unit 3 5341-15 WO 99102056) for Unit 2 and 04/06/2000 9900204 (EC 7545 & WO 99102057) for Unit 3.

Dresden Dam Seismically qualified path for Provide a path from Unit 2 Modification EC 341458 (WO 10/28/2003 failure concern Isolation Condenser Diesel Generator Cooling Water 00558712) provided a tie-in makeup water is not system (seismically qualified) to from Unit 2 Diesel Generator available.

Isolation Condenser makeup Cooling Water to Isolation pumps.

Condenser makeup pumps.

Dresden Dam Alternate path for makeup Provide an alternate path to Modifications to provide tie-Unit 2 failure concern water to Units 2 and 3 CCSW heat exchangers.

ins to CCSW heat 11/4/2003 CCSW heat exchangers exchangers have been Unit 3 does not exist.

completed via EC 341459 11/4/2003 (WO 558719) for Unit 2 and EC 341461 (WO 558720) for Unit 3.

Table G-1 Page 31 of 33 G-32

Dresden Generating Station Unit 3

.12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Iso Condenser Isolation Condenser Provide anchorage or seismic Seismic restraints for the 8/25/2003 Makeup Pump makeup pump diesel oil day restraints for the diesel oil day Isolation Condenser makeup Diesel Oil Day tanks and batteries are not tank batteries, pump diesel oil day tanks and Tanks 2/3-5215-A anchored.

batteries.been added via and 2/3-5215-B modification EC 341881 (WO and batteries 2/3-557293) 4312-4A and 2/3-43123B Relays (Various)

Various vulnerabilities such Perform additional evaluation of Evaluation of various relay Calc as low ruggedness relays, the relays for seismic adequacy models such as General DRE99-0003 demand exceeds capacity, or replace them with qualified Electric HFA, HGA, IAV and 11/1/1999 no GERS, etc.

relays.

IAC and other manufacturers' Calc relays was completed.

DRE99-0020 Calculations DRE99-0003 5/21/1999 and DRE99-0020.

Relays that did not pass evaluation were replaced with qualified relays via the following modifications.

Cardox relays and timers 9/27/2003 Model H45 and H47 for EDGs. Modification EC 7535 (WO99127497).

Relays associated with Unit 9/30/2003 2/3 EDG such as GE Model CFF and HFA, and EMD Model 8263337. Modification EC 8259 (WO 541917).

Table G-1 Page 32 of 33 G-33

Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/

IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Relays associated with Unit 2 8/12/2003 EDG such as GE Model CFF and HFA, and EMD Model 8263337. Modification EC 8260 (WO 545850).

Relays associated with Unit 3 9/8/2003 EDG such as GE Model CFF and HFA, and EMD Model 8263337. Modification EC 8261 (WO 545846).

Removed Square D pressure 11/4/2003 switch 2-2303-PS4 form HPCI system. Modification EC 8262 (WO 522055).

GE relays Model IAV and 10/23/2003 HFA in switchgear 29.

Modification EC 8263 (WO 558722).

Unit 3 auto blowdown relays, 12/19/2003 GE Model HFA in panel 3-2203-32. Modification EC 8264 (WO 522226).

Table G-1 Page 33 of 33 G-34