ML12339A369

Attachment (4 Cont.) Area Walk-By Checklist, Attachment (5) Inaccessible Equipment and Peer Review and Attachment (6) Regulatory Commitments. Part 8 of 8

ML12339A369
Person / Time
Site:	Calvert Cliffs
Issue date:	11/27/2012
From:	Constellation Energy Nuclear Group
To:	Office of Nuclear Reactor Regulation
References
Download: ML12339A369 (72)

Text

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y EW U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 45, CAL-AB-440 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

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

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

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

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

Conduits are well supported.

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 piping with Victaulic coupling are rod hung and supported by clamps to ceiling. The clamp are in proper orientationto support the vertical load. The overhead threadedfire piping is judged to be adequatelysupported and have adequate flexibility, therefore not a concern for spray or flooding.

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 No associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

A-74

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y LW U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 45, CAL-AB-440 Scaffold and scaffold parts storagearea under the stairwell is judged not to be a seismic concern. Also, found tools lying on floor, although not good housekeeping,it is not a seismic concern.

There is a radiationair monitoron a pedestal may fall onto small bore piping and pump and possibly break sightglass on pump 2PUMPSIRWT2, this is a potentialseismic concern. CR-2012-008678

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 Comments Evaluated by: A. Karavoussianis Date: 11/09/2012 C. Figliolini 11/09/2012 A-75

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: YPRI U Area Walk-By Checklist (AWC)

Area

• AuA, qo, UAL-AtS-44U U-1 0-1 Z A-76

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y U-N]

U Area Walk-By Checklist (AWC)

A-77

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y [] U Area Walk-By Checklist (AWC)

A-78

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y [N U Area Walk-By Checklist (AWC)

Area # AUX, 45, CAL-AB-440 8-16-12 A-79

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status:. N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: AUX, 5, CAL-AB-201 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

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

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

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

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

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

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

The overhead fire piping with threaded connections and Victaulic couplings is judged to be adequately supportedand not a concern for spray or flooding.

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)?

A-80

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-201 Scaffold and block wall shielding arejudged to be adequateand not a seismic concem.

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 Evaluated by: A. Karavoussianis Date: 11/09/2012 C. Figliolini 11/09/2012 Area # AUX, 5, CAL-AB-201 8-7-12 106 A-81

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-201 Area # AUX, 5, CAL-AB-201 8-7-12 107 Area # AUX, 5, CAL-AB-201 8-7-12 110 A-82

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: F N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-203 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

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

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

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

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

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

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

Observed well supportedfire piping with sprinklerheads that have guards.

The overhead threadedfire piping is judged to be adequatelysupported and not a concern for spray or flooding.

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)?

A-83

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: MI N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-203 The scaffold partstaging area is adequately bound by building columns, therefore not a 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 Evaluated by: 4*'* A. Karavoussianis Date: 11/09/2012 C. Figliolini 11/09/2012 A-84

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: MI- N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-203 Area #AUX, 5, CAL-AB-203 8-6-12 148 Area # AUX, 5, CAL-AB-203 8-6-12 151 A-85

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M] N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: AUX, 5, CAL-AB A-86

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y W U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-204 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

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

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

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

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

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

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

The overheadfire piping with threadedconnections is judged to be adequately supportedand not a concern for spray or flooding.

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 No associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

A-87

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y E U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-204 There is a non-seismic scaffold nearthe SWC fan, this is potentialseismic concern. CR-2012-009762

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 Evaluated by: A. Karavoussianis Date: 11/09/2012 C. Figliolini 11/09/2012 A-88

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: YVE U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-204 Area # AUX, 5, CAL-AB-204 8-7-12 117 Area #AUX, 5, CAL-AB-204 8-7-12 118 Area # AUX, 5, CAL-AB-204 8-7-12 1 A-89

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y R U Area Walk-By Checklist (AWC)

-,,ja Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-204 A-90

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y I- U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-205 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

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

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

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

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

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

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

The overhead fire piping with threadedconnections and Victaulic couplings on the vertical riser,is judged to be adequatelysupported and not a concem for spray or flooding.

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 No associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

A-91

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y Wi-N U

Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-205 I

There is an unsecuredbinderbeing store on top of a controlpanel. CR-2012-008506

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 Evaluated by: A. Karavoussianis Date: 11/09/2012

~C. Figliolini 11/09/2012 A-92

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y [-1 U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-205 Area # AUX, 5, CAL-AB-205 8-6-12 334 Area # AUX, 5, CAL-AB-205 8-6-12 335 A-93

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y r] U Area Walk-By Checklist (AWC)

A-94

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: YV- U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-205 A-95

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y W U Area Walk-By Checklist (AWC)

Elev, Room/Area): Area: AUX, 5, CAL-AB-205 mrea ;F /muA, 0, UPAL-AIb-ZUO0 1 Z 344 A-96

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-206 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

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

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

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

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

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

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

The overhead threaded fire piping is judged to be adequatelysupported and not a concern for spray or flooding.

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)?

A-97

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-206

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 Evaluated by: A. Karavoussianis Date: 11/09/2012

~C. Figliolini 11/09/2012 A-98

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: FT N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: AUX, 5, CAL-AB-206 Area # AUX, 5, CAL-AB-206 8-7-12 152 Area #AUX, 5, CAL-AB-206 8-7-12 1 A-99

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: YFE U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-215 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)?

Observedpumps, tank and instrumentationwith no seismic concerns.

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

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

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

Cable trays are lightly loaded and wall mounted. Also, observed conduits on trapeze hangersand wall mounted supports. Finally, ductwork well hung from the ceiling.

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?

Sprinklerhead is a couple of inches from a conduit, but conduit is well supported, therefore not a seismic concern.

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

Hydrogen line judged to be well supported and not a seismic concern.

7. Does it appear that the area is free of potentially adverse seismic interactions No associated with housekeeping practices, storage of portable equipment, and A-100

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y [* U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 5, CAL-AB-215 temporary installations (e.g., scaffolding, lead shielding)?

Operationprocedure binderis stored on top of zinc control panel CR-2012-008502

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 Evaluated by: A. Karavoussianis Date: 11/09/2012

~IT C. Figliolini 11/09/2012 A-101

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y [-] U Area Walk-By Checklist (AWC)

AC Area #AUX, 5, CAL-AB-215 8, A-102

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y L-I1 U Area Walk-By Checklist (AWC)

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ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y -4 U Area Walk-By Checklist (AWC)

I nrtfinn (Rilin I::l Pnrnm/Arool- Aran

• Al 1Y R (CAI .A9.22tr A-104

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: MI N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 70, CAL-AB-526 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

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

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

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

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

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

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

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)?

A-105

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 70, CAL-AB-526 Found a scaffold part next to a tank, butjudged not to be a 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 Evaluated by: A. Karavoussianis Date: 11/09/2012 C. Figliolini 11/09/2012 A-106

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 70, CAL-AB-526 Area # AUX, 70, CAL-AB-526 8-9-12 203 Area # AUX, 70, CAL-AB-526 8-9-12 204 Status: L N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 70, CAL-AB-527 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

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

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

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

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

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

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

A-107

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: *Y N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 70, CAL-AB-527

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)?

There is an unanchoredRP instrumentationcabinet next to the high energy vent, the cabinet wobbly and its doors do not latch. Since there is no other equipment near the cabinet and the cabinet can not adversely effect the vent line if it falls, it is judged not to be a 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 Evaluated by: A. Karavoussianis Date: 11/09/2012

~z7 C. Figliolini 11/09/2012 A-108

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Y N U Area Walk-By Checklist (AWC)

Lnation (Rlda EFwv Rnmm/Arpal Arpa

• A[IX 7n rAl -AR-R97 A-109

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Blda. Elev. Room/Area): Area : AUX. 70. CAL-AB-527 Area # AUX, 70, CAL-AB-527 8-9-12 152 A-110

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status:. N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 70, CAL-AB-532 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)?

Unable to verify rearanchorage of MCC 202F, but accordingto CCNPP, MCC is not safety related, therefore it is judged not to be a seismic hazard.

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

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

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

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

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

There is no potentialspray hazard in this 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)?

A-111

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Mi N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 70, CAL-AB-532 There is a portable "A" frame ladder lying on the floor that is not tied down.

Since is it far enough from any equipment, it is not a 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 Evaluated by: ,9A~~zs~ A. Karavoussianis Date: 11/09/2012 C. Figliolini 11/09/2012 A-112

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 70, CAL-AB-532 Area # AUX, 70, CAL-AB-532 8-9-12 111 A-113

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

I nmatinn Rilda Fl*v RnnmlArAql ArAm" At IX 70 (Al -AR-R.19 A-114

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Elev, Room/Area): Area: AUX, 70, CAL-AB-532 Area ff AUA, f V, UAL-Ab-04Z O-W-1 Z I 10 A-115

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 70, CAL-AB-ARF Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

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

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

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

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

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

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

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)?

A-116

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: AUX, 70, CAL-AB-ARF

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 Evaluated by: /'A. Karavoussianis Date: 11/09/2012 C. Figliolini 11/09/2012 Area IFAUA, .'U, L.AL-AtS-AIQ- 1-1J-1 Z UUZ A-117

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

I ru-nfinn [Rlrln IPlo Prnnm/Ard"ia Are=" Al IY 7nl r-AI .ARn-ARp A-118

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: AUX, 70, CAL-AB-ARF Area ;F Au.&, fU, UAL-Ab-Mt- 0-1 J-1 Z U1 V A-119

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: AUX, 70, CAL-AB-ARF A-120

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Blda. Elev. Room/Area): Area : AUX. 70. CAL-AB-ARF fU, UAL-Ab-AKI- VJV A-121

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : AUX, 70, CAL-AB-ARF Area # AUX, 70, CAL-AB-ARF 8-13-12 035 A-122

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: F N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: Intake, -7, CAL-ISPR-INT2 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 (ifvisible without necessarily opening cabinets)?

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

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

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

Cables tray are generally supportedon unistrut frame in this area,therefore judged not to be a seismic concern.

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)?

A-123

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: ljjý N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: Intake, -7, CAL-ISPR-INT2 There is vaious equipment in the area, some are tied off and some are not, but none are a credible seismic hazard.

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 Evaluated by: . A. Karavoussianis Date: 11/09/2012 C. Figliolini 11/09/2012 A-1 24

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: l N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: Intake, -7, CAL-ISPR-INT2 Area # Intake, -7, CAL-ISPR-INT2 8-16-12 175 A-125

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Area: Intake. -7, CAL-ISPR-INT2 Area # Intake, -7, CAL-ISPR-INT2 8 Area;F inme, -1, UALAZZWKAN I ZJ-A-126

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Ml N U Area Walk-By Checklist (AWC) w~ea ?F inlaiw, -f, UAL-I01K-IIN I Z -- i ~

- A i & J!  :~r A-127

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: MI N U Area Walk-By Checklist (AWC)

A-128

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

A-129

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: Li-i N U Area Walk-By Checklist (AWC)

A-130

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M- N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: Intake, -7, CAL-ISPR-INT2 A-1 31

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M*] N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: Intake, -7, CAL-ISPR-INT2 A-132

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: i--J N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: TURB, 12, CAL-AFWPR-605 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)?

Observed that the 21 AFW PP Dischargepressure gage supportis not in contact with wall on rightside and the 22 AFWPP Dischargegage is not in contact on the left side. Both condition are judged not to be a seismic concern.

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

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

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

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

There is an overhead light over the equipment.

10/3/12 - Overheadlights were deemed not a credible seismic concem due to theirlightweight and to typical constructionpractices. Also, they have been previously evaluated by CCNPP and found seismically 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?

The overhead threadedfire piping is judged to be adequatelysupported and not a concern for spray or flooding.

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)?

A-133

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: MI- N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: TURB, 12, CAL-AFWPR-605

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?

Drainpipe nearAFWTD 21 seems to be missing U-Bolt supports, butjudged not to be a seismic concern.

Comments Evaluated by: A. Karavoussianis Date: 11/09/2012 C. Figliolini 11/09/2012 A-134

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: TURB, 12, CAL-AFWPR-605 Area # TURB, 12, CAL-AFWPR-605 8-10-12 058 Area # TURB, 12, CAL-AFWPR-605 8-10-12 059 A-135

ATTACHMENT 4 AREA WALK-BY CHECKLIST Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : TURB, 12, CAL-AFWPR-605 A-1 36

41 ATTACHMENT (5)

INACCESSIBLE EQUIPMENT AND PEER REVIEW Constellation Energy Nuclear Group, LLC November 27, 2012

ATTACHMENT 5 INACCESSIBLE EQUIPMENT AND PEER REVIEW A Plan for Future Seismic Walkdown of Inaccessible Equipment As shown in the SWEL for Calvert Cliffs Unit 2 in Appendix B, several items have been deferred until the next refueling outage (RFO). Table E-1 summarizes the reasons each item is inaccessible during normal plant operation, and notes the planned Seismic Walkdown date.

There are also Area Walk-Bys associated with these items.

All items will be walked down during the next RFO scheduled to complete March 25, 2013. An updated submittal report will be provided on June 30, 2013.

Table 0-1: Summary of Inaccessible Equipment SWEL Reason for Item # Component ID Description Location Inacces-sibility 17 2CV3938 22 MS HDR ATMOS DUMP CAL-AB-408 b.

18 2CV3939 21 MS HDR ATMOS DUMP CAL-AB-408 b.

19 2CV39390P 21M D D VCAL-AB-408 b.

OPERATOR CNTMT SPRAY HDR 21 ISOL VALVE CAL-CTMT-229 CNTMT SPRAY HDR 22 CAL-CTMT-ISOL VALVE 229 CAL-CTMT- a 32 2ERV402 PZR PWR OP RV 2Ea.

229E 34 2FANHVACCTCLR21 CONTAINMENT COOLER 21 CAL-CTMT- a.

FAN 229S 35 2FANHVACCTCLR22 CONTAINMENT FA COOLER 22 CAL-CTMT-2Sa.

FAN 229S 36 2FANHVACCTCLR23 CONTAINMENT COOLER 23 CAL-CTMT- a.

FAN 229S 37 2FANHVACCTCLR24 CONTAINMENT COOLER 24 CAL-CTMT- a.

FAN 229S CAL-ISPR-93 2PUMPSW23 23 SW PUMP INT2 INT2 C.

Inaccessibility code:

a. Inspection requires entry into Primary Containment. (Walkdown performed at full power.)

b. Inspection of anchorage requires access to environmental enclosure

c. Inspection requires entry into confined space. (Inspection of non-anchorage items performed.)

Table E-2 includes the list of equipment items that require supplemental internal inspections because they were not opened during the walkdowns. Cabinets that have been identified as requiring these supplemental internal inspections are those with doors or panels with latches or 1

ATTACHMENT 5 INACCESSIBLE EQUIPMENT AND PEER REVIEW thumbscrews and can be readily opened during normal maintenance activities. Also provided for each cabinet is a proposed schedule for performing these internal inspections.

The Seismic Walkdown Checklists (SWC) for the 8 components identified in Table E-2 that can be opened for internal inspections will be revised at the time of the supplemental walkdown to indicate the results of these internal inspections.

Table 0-2: Summary of Equipment Subject to Supplemental Internal Inspection Planned Planned Pdated SWEL Walkdown Updated Item # Component ID Description Location I Walk-By Submittal Date Report Date 5 2BUS2B01A(Notel) 480V BUS 21A CAL-AB-311 3/25/2013 6/30/2013 6 2BUS2B01B(Note 1) 480V BUS 21B CAL-AB-311 3/25/2013 6/30/2013 44 2HS5204A SW AIR COMPR 21 CAL-AB-532 42HS5204A CONTROL 45 2HS5204A1 21 SWAC LCUREMOTE HS CAL-AB-532 74 2PNL2C61B(Notel) 2B DG LOCAL CONTROL CAL-AB-416 3/25/2013 6/30/2013 PANEL 75 2PNL2C61C(Note 1) 2B DG LOCAL CONTROL CAL-AB-416 3/25/2013 6/30/2013 PANEL 97 2RY51GFr'21A(Note 1) 480V SERV XFMR U-440- CAL-AB-311 6/30/2013 21A GROUND RELAY 98 2RY51G/T21B(Note 1) 480V SERV XFMR U-440- CAL-AB-311 3/25/2013 6/30/2013 21B GROUND RELAY Notes:

1) Additional internal anchorage also needs verification during this supplementary walkdown.

In addition there are nine (9) equipment items that were not opened during the walkdowns and do not have maintenance scheduled. To remove these from service an entire safety related bus must be de-energized, which puts the plant at significant risk. It is unsafe to open these while they are in service.

Table 0-3: Summary of Inaccessible Equipment SWEL Impact Item Component ID Description Location Code

1. Code 2 2BKR152-2110 HIGH PRESSURE SAFETY CAL-AB-311 b.

INJECTION PUMP 23 7 2BUS2DO1 125VDC BUS 21 CAL-AB-302 a.

8 2CHGR22 BATTERY CHARGER 22 CAL-AB-302 c.

9 2CHGR24 BATTERY CHARGER 24 CAL-AB-306 c.

30 2DISC189-2103A 2A DG TO DISC SW 2NA103 CAL-AB-422 c.

57 2MCC214R 480V MCC214R CAL-AB-532 c.

67 2NB102 CNTMT COOL FAN 21 CAL-AB-409 c.

CONTROLLER 77 2PNL2D11 125VDC PNL DC21 2D1 CAL-AB-302 a.

96 2RY2YO3A/64/B23 2Y03 INVERTER CAL-AB-302 c.

2

ATTACHMENT 5 INACCESSIBLE EQUIPMENT AND PEER REVIEW Table 0-3: Summary of Inaccessible Equipment SWEL Impact Item Component ID Description Location Code Impact Code:

a. Internal anchorage is inaccessible, condition and compliance with licensing basis cannot be established. Cabinet is inaccessible for internal inspection. SWC questions 2, 3, 4, 5 and 11 cannot be assessed and have been answered, "No".

b. Internal anchorage is inaccessible and condition cannot be established (not a configuration verification item). Cabinet is inaccessible for internal inspection. SWC questions 2, 3, 4 and 11 cannot be assessed and have been answered, "No".

c. Cabinet is inaccessible for supplemental internal inspection. SWC question 11 cannot be assessed and has been answered, "No".

3

ATTACHMENT 5 INACCESSIBLE EQUIPMENT AND PEER REVIEW B

Peer Review Checklists Peer Review Checklist for SWEL - Calvert Cliffs Nuclear Power Plant Unit 2 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: Peer Review. 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? YE NEI

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

a. Various types of systems? YEINEI

b. Major new and replacement equipment? YO NEI

c. Various types of equipment? YO NEI 1

ATTACHMENT 5 INACCESSIBLE EQUIPMENT AND PEER REVIEW Peer Review Checklist for SWEL - Calvert Cliffs Nuclear Power Plant Unit 2

d. Various environments? YN N-I

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

f. Were risk insights considered in the development of SWEL 1? YZ NO

3. For SWEL 2:

a. Were spent fuel pool related items considered, and if applicable included in YEDNEI SWEL 2?

b. Was an appropriate justification documented for spent fuel pool related items not Y NEI included in SWEL 2?

2

ATTACHMENT 5 INACCESSIBLE EQUIPMENT AND PEER REVIEW Peer Review Checklist for SWEL - Calvert Cliffs Nuclear Power Plant Unit 2

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

5. Have all peer review comments been adequately addressed in the final SWEL? YM NEI Peer Reviewer #1: Tony Perez Date: 07/30/2012 Peer Reviewer #2: O il Date: 08/02/2012 3

ATTACHMENT (6)

REGULATORY COMMITMENTS CONTAINED IN THIS CORRESPONDENCE Constellation Energy Nuclear Group, LLC November 27, 2012

ATTACHMENT 6 REGULATORY COMMITMENTS CONTAINED IN THIS CORRESPONDENCE The following table identifies actions committed to in this document by Calvert Cliffs Unit 2. Any other statements in this submittal are provided for infomation purposes and are not considered to be regulatory commitments.

REGULATORY COMMITMENT DUE DATE Perform followup of internal inspection of electrical By the end of the Calvert Cliffs Unit 2 cabinets as listed in Table E-1 of Attachment 4. refueling outage in Spring 2013 Submit an updated seismic walkdown report. June 30, 2013