ML13193A150

Supplemental Response to 10 CFR 50.54(f) Request for Information Recommendation 2.3, Seismic

ML13193A150
Person / Time
Site:	Calvert Cliffs
Issue date:	06/28/2013
From:	Korsnick M Constellation Energy Nuclear Group, EDF Group
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML13193A150 (160)

Text

Mary G. Korsnick Chief Nuclear Officer SVP - Chief Operations Officer CENG.

a joint venture of 0

Enm

• y"'eDF Office 410-470-5133 Fax 443-213-6739 E-mail: Maria.Korsnick@cenglIc.com June 28, 2013 U.S. Nuclear Regulatory Commission 11555 Rockville Pike Rockville, MD 20852 ATTENTION:

SUBJECT:

Document Control Desk Calvert Cliffs Nuclear Power Plant, Unit 2 Renewed Facility Operating License No. DPR-69 Docket No. 50-318 Supplemental Response to 10 CFR 50.54(f) Request for Information, Recommendation 2.3, Seismic

REFERENCES:

(a)

Letter from E. J. Leeds (NRC) and M. R. Johnson (NRC) to All Power Reactor Licensees and Holders of Construction Permits in Active or Deferred Status, dated March 12, 2012, Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident (b)

Letter from M. G. Korsnick (CENG) to Document Control Desk (NRC),

dated November 27, 2012, Response to 10 CFR 50.54(f) Request for Information, Recommendation 2.3, Seismic (ML12339A349)

On March 12, 2012, the U.S. Nuclear Regulatory Commission (NRC) issued Reference (a) to all power reactor licensees. The NRC letter requests further information from addressees to support the evaluation of NRC Staff Recommendation 2.3: Seismic, from the Near-Term Task Force review of the accident at the Fukushima Dai-ichi nuclear facility.

Reference (b) is the Calvert Cliffs Nuclear Power Plant, LLC's response to the request in Reference (a).

In that response a regulatory commitment was made to submit an updated walkdown report in June 2013.

This letter closes that Regulatory Commitment.

As stated in Attachment 5 of Reference (b), there were 11 Seismic Walkdown Equipment List (SWEL) items that were deferred until the next refueling outage. Table 0-1 of Attachment 5 summarized the reasons each item was inaccessible during normal plant operation, and noted the planned Seismic Walkdown date. All 11 inaccessible items were walked down.

Constellation Energy Nuclear Group, LLC 100 Constellation Way, Suite 200C, Baltimore, M D 21202

Document Control Desk June 28, 2013 Page 2 Table 0-2 of Reference (b) included a list of 8 equipment items that required supplemental internal inspections because they were not opened during the original walkdowns. The supplemental internal inspections were completed on 6 of 8 of those electrical components. Two components were inspected during the original walkdowns and should not have been included in Table 0-2 as needing an additional internal inspection. to this letter is the supplemental seismic walkdown report. Attachment 2 provides the seismic walkdown checklists, Attachment 3 contains the area walk-by checklists, and Attachment 4 provides the supplemental internal inspections of electrical cabinets.

There are no new regulatory commitments in this letter.

If there are any questions concerning this letter, please contact Everett (Chip) Perkins at everett.perkinsdcengllc.com or 410-470-3928.

I declare under penalty of perjury that the foregoing is true and correct. Executed on June 28, 2013.

, Sincerely, yG. Kornick MGK/EMT/bjd Attachments:

(1)

Supplemental Seismic Walkdown Report (2)

Seismic Walkdown Checklists (3)

Area Walk-By Checklists (4)

SWCs for Supplemental Internal Inspections of Electrical Cabinets cc:

B. K. Vaidya, NRC Resident Inspector, Calvert Cliffs M. C. Thadani, NRC S. Gray, DNR N. S. Morgan, NRC W. M. Dean, NRC

ATTACHMENT (1)

SUPPLEMENTAL SEISMIC WALKDOWN REPORT Constellation Energy Nuclear Group, LLC June 28, 2013

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT SUPPLEMENTAL SEISMIC WALKDOWN REPORT IN RESPONSE TO THE 50.54(0 INFORMATION REQUEST REGARDING FUKUSHIMA NEAR-TERM TASK FORCE RECOMMENDATION 2.3: SEISMIC for Calvert Cliffs Nuclear Power Plant Unit 2 Table of Contents L ist o f T a b les.........................................................................................................

i E xecutive Sum m ary.................................................................................................

ii 1

Introduction.....................................................................................................................

1-1 1.1 B ackground............................................................................................................. 1-1 1.2 A pp ro ach................................................................................................................ 1-1 2

Personnel Qualifications..............................................................................................

2-1 2.1 O verview................................................................................................................ 2 -1 2.2 W alkdow n Personnel................................................................................................ 2-1 3

Selection of SSCs............................................................................................................. 3-1 3.1 O verv iew................................................................................................................ 3 -1 3.2 S cop e.....................................................................................................................

3 -1

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT 4

Seismic Walkdowns, Area Walk-By's and Internal Inspections.............................................

4-1 4.1 Overview................................................................................................................

4-1 4.2 Seism ic W alkdowns................................................................................................. 4-1 4.3 Area W alk-Bys........................................................................................................ 4-2 4.4 Electrical Cabinet Internal Inspections........................................................................ 4-2 5

Licensing Basis Evaluations.............................................................................................. 5-1 6

Peer Review.....................................................................................................................

6-1 6.1 Peer Review Introduction.......................................................................................... 6-1 6.2 Review of sample checklist & area walk-bys............................................................... 6-1 7

References.......................................................................................................................

7-1 A

Project Personnel Certificates.................................................................................

A -1

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT List of Tables Table 2-1. Personnel Included in NTTF 2.3 Supplemental W alkdown......................................... 2.1 Table E-1 Table of Inaccessible Components from Reference 1................................................ 3-1 Table E-2 Table of Supplemental Electrical Cabinets from Reference 1....................................... 3-2 Table 3-1: Status of Open Corrective Action Program Items Identified in References I Component Seism ic W alkdow ns.................................................................................... 3-2 Table 3-2: Status of Open Corrective Action Program Items Identified in References 1 Area Seismic W alk d o w n s............................................................................................... 3 -4 Table 4-1. Table of Potentially Degraded, Nonconforming or Unanalyzed Conditions for Equipment Items at CCNPP Identified During Supplemental Walkdowns.............

4-3 Table 6-1. Table of Peer Review Comments for SW C's.................................................

6-1 Table 6-2. Table of Peer Review Comments for AWC's..........................................

6-4 Table B-1. Summary of Seismic Walkdown Checklists Completed by CCNPP Personnel....

B-1 Table C-1. Summary of Area Walk-By Checklists Completed by CCNPP Personnel............

C-1 Table D-1. Summary of Supplemental Internal Inspections Completed by CCNPP..............

D-1

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Executive Summary This Supplemental Seismic Walkdown Report documents walkdowns performed at Calvert Cliffs Nuclear Power Plant (CCNPP) for components that were not accessible during the initial walkdowns and were not included in the Response to 10 CFR 50.54(f) Request for Information, Reconmnendation 2.3, Seismic

[Ref. 1].

These seismic walkdowns identified two adverse seismic condition associated with the 4 Containment Air Cooling units (CACs) as well as the 3 Iodine Removal Units (IRUs) on Unit 2. These issues were entered into the station corrective action program, evaluated, repaired and subsequently determined to have been operable in the as-found condition. The operability determination was applicable to Unit 1 CACs and IRUs for extent of condition. These issues are discussed in more detail in sections 4 and 5 of this report.

EPRI Technical Report 1025286, Seismic Walkdown Guidance for Resolution of Fuk-ushima Near-Term Task Force Recommendation 2.3: Seismic [Ref. 2]. was used to perform the engineering walkdowns and evaluations described in this report. In accordance with Reference 2, the following topics are addressed in the subsequent sections of this report.

Personnel Qualifications Selection of Systems, Structures and Components (SSCs)

Seismic Walkdowns and Area Walk-Bys Seismic Licensing Basis Evaluations Peer Review Personnel Qualifications Personnel qualifications are discussed in Section 2 of this report. The personnel who performed the key activities required to fulfill the objectives and requirements of the "Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendation 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident," Enclosure 2.3, "Reconmmendation 2.3: Seismic, [Ref. 3], letter are qualified and trained as required in Reference

2. These personnel are responsible for:

Performing the Seismic Walkdowns and Area Walk-Bys, Performing the seismic licensing basis evaluations, as applicable, Performing the peer reviews Selection of SSCs The selection of SSCs was completed and documented within Reference 1.

Seismic Walkdowns and Area Walk-Bvs ii

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Section 4 of this report documents the equipment Seismic Walkdowns, Area Walk-Bys and Internal Inspections. The supplemental seismic walkdowns for CCNPP were performed during the Spring of 2013 during power operation and during the plant's refueling outage. The walkdown team consisted of two Seismic Walkdown Engineers (SWE's) from the station's Design Engineering group.

Operations/Maintenance personnel were also available and called upon as needed.

The seismic walkdowns focused primarily on the seismic adequacy of the Seismic Walkdown Equipment List (SWEL) items and on identifying:

Adverse anchorage conditions Adverse seismic spatial interactions Other adverse seismic conditions (e.g., degradation)

Area Walk-Bys were conducted in each area of the plant that contained an item on the SWEL. The purpose of an Area Walk-by is to identify potentially adverse seismic conditions associated with other SSCs located within the vicinity of a SWEL item. There was I Area Walk-by completed for CCNPP Unit 2 during the refueling outage. The key examination factors considered in the Area Walk-Bys included:

Anchorage conditions (if visible without opening equipment)

Significantly degraded equipment in the area Potential seismic interactions A visual assessment (from the floor) of cable/conduit raceways and HVAC ducting (e.g.,

condition of supports or fill conditions of cable trays)

Miscellaneous other conditions including conformance of temporary installations to general seismic housekeeping procedures The seismic walkdown team inspected the remaining inaccessible components on the SWEL as described in Reference 1. All SWEL components in Unit 2 Containment have been inspected.

CCNPP was required to complete a supplemental internal inspection of 8 cabinets/components.

The walkdown team completed supplemental internal inspections on 6 of 8 items. One substitution was made on the supplemental internal inspection list due to industrial safety concerns as the original selected cabinet contained high voltage components. Two components (2HS-5204A and 2HS-5204A1) were not required to be inspected. They consisted of a remote start hand switch enclosure which was inspected and documented in Reference 1. They should not have been identified as needing an internal inspection as the enclosure mounting is visible externally.

During the CCNPP walkdown, there were two adverse seismic conditions discovered that challenged the licensing basis for the plant. These two issues were entered into the station Corrective Action Program (CAP) and evaluated. The components were initially determined to be inoperable at the time of discovery and have subsequently been returned to Operable status prior to the return to service of Unit 2 from a refueling outage. The mountings of several components were welded to comply with design requirements prior to restart of Unit 2. An operability deternmination subsequently concluded these components were iii

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT operable in the as-found condition.

These conditions are further discussed in section 4 and 5 of this report.

Under this supplemental inspection an additional three (3) Condition Reports (CRs) were issued to address conditions such as missing welds and degraded fasteners. These issues were identified in the Seismic Walkdown Checklists (SWCs), and Area Walk-by Checklists (AWCs) of this report. Disposition of the identified issues was completed within the station's corrective action process.

SWCs and AWCs were completed for all components and areas that were walked down as required.

The status of previously identified issues that were entered into the Corrective Action Program in References 1 (with outstanding actions) is updated in Section 3.

Seismic Licensing Basis Evaluations Reference 2 provides a detailed process to perform and document seismic licensing basis evaluations of SSCs when potentially adverse seismic conditions are identified during the equipment Seismic Walkdowns or Area Walk-Bys. The process provides a means to identify, evaluate and document how the identified potentially adverse seismic condition meets a station's seismic licensing basis without entering the condition into a station's Corrective Action Program. Further, the process directs that if a condition cannot be readily shown to meet the seismic licensing basis, then the identified condition should be entered into the station's CAP where it will be determined that the condition does or does not meet the seismic licensing basis.

Constellation Energy Group/CCNPP staff did not utilize the process provided in Reference 2 to perforn and document seismic licensing bases evaluations of SSCs with potentially adverse seismic conditions.

Instead, all questionable conditions identified by the SWEs during the equipment Seismic Walkdowns or Area Walk-Bys were entered into the station CAP to be further evaluated and addressed as required.

Therefore, no seismic licensing basis evaluations were completed in accordance with the process documented in Reference 2. Table 4-1 of Section 4 of this report provides a summary of the conditions identified during the Seismic Walkdowns and Area Walk-Bys.

Peer Reviews A peer review consisting of one qualified individual who has seismic engineering experience as it applies to nuclear power plants and peer reviews were performed in accordance with Reference 2. The Peer Review process included the following activities:

Review of the Seismic Walkdown Checklists (SWCs) and Area Walk-Bys (AWCs)

Review of Licensing basis evaluations, as applicable Review of the decisions for entering the potentially adverse conditions into the CAP process Review of the submittal report Provide a summary report of the peer review process in the submittal report iv

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Section 6 of this report contains the Peer Review summary report. The Peer Review determined that the objectives and requirements of Reference 3 are met. Further, the efforts completed and documented within this report are in accordance with Reference 2.

Summary In summary, the supplemental outage seismic walkdowns have been completed at Calvert Cliffs Nuclear Power Plant, Unit 2, in accordance with the NRC-endorsed walkdown methodology.

All potentially degraded, nonconforming, or unanalyzed conditions identified as a result of the seismic walkdowns have been entered into the corrective action program to be addressed.

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT I

Introduction

1.1 BACKGROUND

In response to the Near-Term Task Force (NTTF) Recommendation 2.3 and IOCFR50.54 (f) letter, CCNPP performed seismic walkdowns in accordance with Reference 2. Results of the walkdowns are documented within Reference 1. The walkdown team was unable to inspect some equipment due to plant configuration and personnel qualifications.

This supplemental report documents completion of the required seismic walkdowns for inaccessible equipment and equipment required to be opened for inspection.

1.2 APPROACH In accordance with the Reference 2 the following topics are addressed in this supplemental report:

Personnel Qualifications Selection of SSC's Seismic Walkdowns, Area Walk-Bys, and Supplemental Internal Inspections Licensing Basis Evaluations Peer Review 1-1

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT 2

Personnel Qualifications 2.1 OVERVIEW This section of the report identifies the personnel that participated in the supplemental inspections for the NTTF 2.3 Seismic Walkdown effort. A description of the responsibilities of each Seismic Walkdown participant's role(s) is provided in Reference 2. Note that for this report, the only roles required were for the walkdown team, licensing basis reviewer, and peer reviewer. Personnel responsible for equipment selection and IPEEE review are noted within Section 3 of Reference 1.

2.2 WALKDOWN PERSONNEL Table 2-1 below summarizes the names and corresponding roles of personnel who participated in the NTTF 2.3 Seismic Walkdown effort.

Table 2-1 Personnel Included in NTTF 2.3 Supplemental Walkdown Personnel Mr. Joe Crunkleton X

X Mr. Emran Hussain X

X Mr. Mark Wright X

Mr. Jeff Gardiner X

Dr. Charles Merritt X

The following includes a short synopsis of each individual's qualifications.

Emran Hussain: Mr. Hussain is a Principal Engineer in the Design Engineering department at the Calvert Cliffs Nuclear Power Plant. He is a fully qualified seismic engineer and worked in the Mechanical Design Group for over 13 years. He has over 30 years of engineering experience in the nuclear field. Mr. Hussain has extensive experience in seismic area. He is thoroughly familiar with various aspects of seismic qualification of equipment and structures. He has performed numerous seismic analysis, seismic test report reviews, evaluation of "as-found" degraded condition, etc. Since 2012, he has been working as a 2-1

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT seismic engineer for the Fukushima Response Team. He completed the EPRI sponsored seismic walkdown training for the Fukushima project. Mr. Hussain has a Masters degree in Mechanical Engineering.

Mr. Hussain participated in the initial 2.3 seismic walkdowns at CCNPP.

Mark A. Wright, PE: Mr. Wright is a Principal Engineer in the Nuclear Engineering Services group at the Calvert Cliffs Nuclear Power Plant. Mr. Wright is a fully qualified Civil/Seismic engineer and has worked in the Nuclear Industry for over 34 years. During this time Mr. Wright has been involved in the seismic analysis of new and replacement components (mechanical and electrical), the design and implementation of safety-related modifications and the evaluation of "as-found" degraded conditions at the site. Mr. Wright is knowledgeable in the site seismic licensing basis, and is a qualified to perform and review 50.59 Screens and Applicability Determinations. Mr. Wright has been involved with the site's response to the Fukushima Event since March 2011. Mr. Wright has a BS degree in Civil Engineering from the University of Delaware.

He is a Registered Professional Engineer in Maryland and Pennsylvania and has completed the 5-day SQUG Walkdown Screening and Seismic Evaluation Training Course.

Joseph Crunkleton: Mr. Crunkleton has worked at the Calvert Cliffs Nuclear Power Plant for 20 years. A majority of his tenure included working in the Mechanical and Civil Engineering Unit. Mr. Crunkleton supports major modifications as well as day to day plant support.

SQUG Walkdown Screening and Seismic Evaluation Training were completed in 2007.

Training on Near Tenn Task Force Recommendation 2.3 -

Plant Seismic Walkdown was completed in 2012. Mr. Crunkleton has professional experience in the following areas:

Structural Engineering, Seismic Engineering, Construction, Pipe Stress / Pipe Support Analysis, Load Handling / Rigging, Scaffolding / Radiation Shielding Design. Mr. Crunkleton has a BS degree in Microbiology and a BS in Aerospace Engineering.

Mr. Crunkleton is a member of the American Society of Mechanical Engineers Mr. Crunkleton participated in the initial SWEL development and 2.3 seismic walkdowns at CCNPP.

Jeffrey Gardiner: Mr. Gardiner is an engineer in the Nuclear Engineering Services group at the R.E.

Ginna Nuclear Power Plant. Mr. Gardiner is a fully qualified Civil/Seismic engineer and has worked in the Mechanical Design Group at Ginna for over 4 years. During this time Mr. Gardiner has been involved in the seismic analysis of new and replacement components (mechanical and electrical), the design and implementation of safety-related modifications and the evaluation of "as-found" degraded conditions at the site. Mr. Gardiner is knowledgeable in the site seismic licensing basis, and is a qualified to perform and review 50.59 Screens and Applicability Determinations. For the last 6 months Mr. Gardiner has served as the seismic engineer for the site's Fukushima Response Team. Mr. Gardiner has a BSCE in Civil Engineering and an MS degree in Civil Engineering with concentrations in Structural and Seismic Engineering from the University at Buffalo. He has passed the E.I.T. in New York and has completed the 5-day SQUG Walkdown Screening and Seismic Evaluation Training Course.

Mr. Gardiner participated in the initial and supplemental 2.3 seismic walkdowns at R.E.Ginna. Nuclear Power Plant, and was the peer team lead for this supplement.

2-2

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Charles R. Merritt, Jr., D.Sc., PE, PMP: Dr. Merritt is a Sr. Project Manager in the Fukushirna Lessons Learned Implementation project department at CENG. He became the Site Lead for the Fukushima Lessons Learned project at the Calvert Cliffs Nuclear Power Plant in September 2012. He has over 28 years of engineering and project leadership experience in the nuclear field. Dr. Merritt holds a Bachelor of Science in Marine Engineering from the U. S. Naval Academy, as well as Master of Engineering Management and Doctor of Science in Engineering Management from The George Washington University. He is a registered professional engineer in the Commonwealth of Virginia and is a certified Project Management Professional.

2-3

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT 3

Selection of SSC's 3.1 OVERVIEW Section 4.0 of Reference 1 details the selection methodology utilized for this report and SWEL development. Selection of SSC's is outside the scope of work performed within this report.

3.2 SCOPE The scope of the components in this supplement consist of the SWEL items previously deemed inaccessible or required a supplemental inspection as outlined in Reference 1, tables El & E2. These tables are shown here for reference.

Table E-1: Summary of Inaccessible Equipment SWE L

Item Component ID Description Location 12Am 17 2CV3938 22 MS HDR ATMOS DUMP CAL-AB-408 18 2CV3939 21 MS HDR ATMOS DUMP CAL-AB-408 19 2CV39390P 21 MS HDR ADV CV OPERATOR CAL-AB-408 25 2CV4150 CNTMT SPRAY HDR 21 ISOL CAL-CTMT-229 VALVE 26 2CV4151 CNTMT SPRAY HDR 22 ISOL CAL-CTMT-229 VALVE 32 2ERV402 PZR PWR OP RV CAL-CTMT-229E 34 2FANHVACCTCLR21 CONTAINMENT COOLER 21 FAN CAL-CTMT-229S 35 2FANHVACCTCLR22 CONTAINMENT COOLER 22 FAN CAL-CTMT-229S 36 2FANHVACCTCLR23 CONTAINMENT COOLER 23 FAN CAL-CTMT-229S 37 2FANHVACCTCLR24 CONTAINMENT COOLER 24 FAN CAL-CTMT-229S 93 2PUMPSW23 23 SW PUMP CAL-ISPR-INT2 3-1

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Table E-2: Summary of Equipment Subject to Supplemental Internal Inspection SWEL Component ID Description Location Item #

5 2BUS2B01A"NOIC '"

480V BUS 21A CAL-AB-311 6

2BUS2B01B 480V BUS 21B CAL-AB-311 44 2HS5204A SW AIR COMPR 21 CONTROL CAL-AB-532 45 2HS5204A1 21 SWAC LCL/REMOTE HS CAL-AB-532 74 2PNL2C61B"O t'e 2B DG LOCAL CONTROL PANEL CAL-AB-416 75 2PNL2C61CNote 2' 2B DG LOCAL CONTROL PANEL CAL-AB-416 2RY51G/T2IAN~ole 480V SERV XFMR U-440-21A GROUND 97

-1 RELAY CAL-AB-311 98 2RY51G/T21B' 480V SERV XFMR U-440-21B GROUND CAL-AB-311 RELAY 2PNL2C61ANy~e

2) 2B DG LOCAL CONTROL PANEL CAL-AB-416 Notes:

1) 2)

Additional internal anchorage also needs verification during this supplementary walkdown.

2PNL2C6 1 C could not be inspected due to cabinet containing high voltage components.

2PNL2C26IA was inspected as a substitute for SWEL item #75.

Table 3-2: Status of Corrective Action Program Items Identified in Reference 1 Component Seismic Walkdowns No.

Item Description Action(s)

Resolutions 1

2BATT21 Information provided has not CR-2012-009780 ADC-12-001337 satisfied the information needed (Operable, but revised battery rack for the SWE to determine if we degraded or drawing. CR is are in our designs configuration nonconfornring) closed 3-2

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Table 3-2: Status of Corrective Action Program Items Identified in Reference I Component Seismic Walkdowns No.

Item Description Action(s)

Resolutions 2

2ENGEDG2B 2G2B unit mounted on vibration CR -2012-010381 ADC-12-001335 isolators.

(Operable) to created to capture investigate the as-built installation.

seismic adequacy of CR is closed this unit's anchorage 3

2HS5204A Complete drawing 91061 sheet 3.

CR-2012-009711 ECP-12-001031 The anchorage is not consistent (Operable but qualified as-found with drawing 91061 sheet 3.

degraded) configuration. CR is closed 4

2PCV3939A Information provided has not CR-2012-009779 Appropriate satisfied the information needed (Operable, but documents found to for the SWE to determine if we degraded or accept installed are in our designs configuration nonconforining) configuration. CR is closed 5

2PNL2CO8 Used details that are not shown on CR-2012-009752 Appropriate drawing, but may be construed as (Operable) documents found to equivalent. See as-built on Dwg accept installed G19925H004 Rev. 9 configuration. CR is closed 6

2PO5430 Information provided has not CR-2012-009778 Appropriate satisfied the information needed (Operable, but documents found to for the SWE to determine if we degraded or accept installed are in our designs configuration nonconforming) configuration. CR is closed 7

2PT5313A Oxidation on bolts and corrosion CR-2012-009661 WO C92057336 to on base plate. The left base plate (Operable) clean bolts and base is flaking.

CR-2012-010259 plate corrosion Also, channel is not fully welded (Operable)

WO is open between the base plate and its ECP-13-000065 web.

qualified support.

CR's are closed 8

2PT5313B Corrosion and oxidation on CR-2012-009622 WO C92056165 anchor bolts and plate. Base (Operable) for created to clean plates on both sides are flaking corrosion bolts. WO and missing anchor bolt washer.

CR-2012-009624 C92056184 to (Operable) for install washer.

missing washer WO"s are open 3-3

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Table 3-2: Status of Corrective Action Program Items Identified in Reference 1 Component Seismic Walkdowns No.

Item Description Action(s)

Resolutions 9

2PT5315C The bottom bolt on the right side CR -2012-009754 ECP-13-000065 is not fully engaged. Also, (Operable) qualified support.

channel is not fully welded CR is closed between the base plate and its web.

10 2PT5315D Only 3" long weld on vertical side CR-2012-009714 ECP-13-000065 of channel, not fully welded as (Operable) qualified support.

shown on typical detail.

CR is closed 11 2PUMPSICS21 2.25" conduit and J-Box is CR-2012-009304 WO C92049017 supported on a frame that is (Operable) issued to replace pinned to the floor, bolt. WO is open 12 2RYRPS-K1 &

Anchorage varies from drawings CR-2012-009775 ADC-12-001365 2RYRPS-K4 in that the cabinet is anchored by (Operable, but captured as-built a single 13/16" F-F CEA per bay, degraded or configuration. CR not as shown on DWG.

nonconforming) is closed 13 2SV5313A Pipe line heading into CR-2012-009626 ECP-12-001032 containment is resting on angle (Operable) issued to install iron stanchion, but not supported missing U-bolt.

approx. I" of outside wall.

CR is closed WO C92056259 is open 14 2TK4802 Two bottom headed studs are CR-2012-009759 Appropriate engaged. Top four headed studs (Operable, but documents found to are engaged.

degraded or accept installed nonconforming) configuration. CR is closed 15 2TKRWT21 Approximately 6 bolts are CR-2012-008380 WO C92018872 showing signs of corrosion to the (Operable) for issued to clean and bolt shaft. Approximately 8 corrosion preserve bolts visible cracks appear to go down CR-2012-009629 WO C92056298 along foundation.

(Operable) for was created to cracks repair cracks. CR's are closed WO's are open 3-4

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Table 3-2: Status of Corrective Action Program Items Identified in Reference I Area Seismic Walkdowns No.

Area Description Action(s)

Resolutions 16 CAL-AB-204 Non-seismic scaffold near SWC CR-2012-009762 Scaffold is fan Relocate or seismically seismically restrain installed per site scaffolding.

procedure. CR is closed 17 CAL-AB-311 Tool hanging on side of CR-2012-08676 CA-2012-003696 -

RCP22APO1 (trip sensitive (operable) for RCP identify new equipment) which may bang Breaker Racking storage area and during earthquake.

tool relocate racking tool 18 CAL-AB-408 There is scaffold part staging CR-2012-009724 Scaffold behind valve 2MS-3938-CV. The (Operable) arrangement staging consist of racks those corrected per seismic adequacy is questionable.

Design The racks may move and strike a Engineering input.

drain line and MSS valves See CA-2012-enclosure, therefore a potential 003936. CR is seismic concern.

closed 19 CAL-AB-409 Crack in wall runs through fire CR-2012-009757 WO C92081952 protection panel anchor bolt and (Operable, but created to repair conduit supports.

degraded or cracks.

nonconforming,)

20 CAL-AB-414 Unsupported measurement pole CR-2012-008679 CA-2012-003697 -

resting against wall near MCC.

(Operable)

Evaluate J Hook bracket CA is open 21 CAL-AB-416 Air receiver anchorages are not CR-2012-009782

- Acceptable as is-fully seated on concrete pad; (Operable but Shims causing gap-some have 1/16" to 3/16" gap.

degraded)

Per design.

CR is closed 3-5

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Table 3-2: Status of Corrective Action Program Items Identified in Reference I Area Seismic Walkdowns No.

Area Description Action(s)

Resolutions 22 CAL-AB-422 Air receiver anchorages are not CR-2012-009782 Appropriate fully seated on concrete pad; (Operable but documents found some have 1/16" to 1/8" gap. DG degraded) for gaps to accept installed concrete pad shows considerable CR-2012-009785 for configuration. CR cracking.

cracks is closed (Operable)

Cracks were determined to Non Structural.

Acceptance documented in ECP-13-000067.

CR is closed 3-6

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT 4

Seismic Walkdowns, Area Walk-By's and Internal Inspections 4.1 OVERVIEW Seismic Walkdowns and Area Walk-Bys were conducted by a two-person team of trained Seismic Walkdown Engineers, in accordance with the Reference 2. Each engineer has completed the 5-day SQUG Walkdown Training course, a recognized equivalent to the NTTF 2.3 Seismic Walkdown Training Course outlined in Reference 2.

4.2 SEISMIC WALKDOWNS The components included in the Seismic Walkdowns are shown on the CCNPP SWEL 1 in Attachment 3 of Reference 1. A Seismic Walkdown Checklist (SWC) from Appendix C of [Ref. I] was completed for each item on the SWEL. Additionally, photos are included with most SWCs to provide a visual record of the walkdowns. Seismic Walkdowns were completed for the remaining 11 SWEL 1 items noted in table E-I of Reference 1. Supplemental internal inspections were completed for 6 electrical components listed in Table E-3 of Reference 1. Two components, 2HS-5204A and 2HS-5204A1, on Table E-2 of Reference 1 were determined to not need an internal inspection. These components are not located in a cabinet but consist of a remote switch control box which was included and evaluated in the initial walk down. The switch box anchorage is visible externally and the mounting stanchions were evaluated as acceptable in CR-2012-009711. This CR generated an Engineering Change Package (ECP) to update the drawings showing the actual weld configuration. These should not have been included Table E2 in Reference 1.

Four components were identified as having missing welds for mounting to structural steel. These components were initially determined to be inoperable at the time of discovery, with a subsequent restoration to Operable, prior to restart from a refuel outage, and are discussed further in section 5.

Subsequent evaluation found these components were operable in the as-found configuration.

4.2.1 Anchorage Configuration Confirmation As required by the EPRI Seismic Walkdown Guidance [Ref. 1] (pg. 4-3), 50% of the items (excluding line mounted equipment) were confirmed to have anchorage configurations consistent with plant documentation. The 50% anchorage configuration verifications were satisfied by Reference 1. Three additional anchorage verifications were performed during the panel internal inspections.

4.2.2 Issues Identification during Seismic Walkdowns There was one issue identified by the SWEs during the equipment walkdowns that were ultimately judged to be a "Potentially Adverse Seismic Condition." Table 4-1 provides a surmnary of the issues identified during the Seismic Walkdowns.

4-1

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT 4.3 AREA WALK-BYS In accordance with Reference 1, Area Walk-by Checklists (AWC) was performed for each room or area within a large room (35 foot radius) which included one or more items on the SWEL. Completed AWCs are included in Appendix C. A total of 1 supplemental AWC was completed to encompass various elevations in the Containment. All other areas were reviewed as part of Reference 1.

4.3.1 Issue Identification during Area Walk-bys One issue identified by the SWEs during the area walk-bys was ultimately judged to be a "Potentially Adverse Seismic Condition". The 3 Iodine Removal Units (IRUs) were found to have missing welds for mounting to structural steel. These issues were entered into the CAP system. The IRUs were repaired during the outage by installing welds to meet design requirements. This issue is discussed further in section 5. No additional issues were identified by the AWC's.

4.4 ELECTRICAL CABINET INTERNAL INSPECTIONS The initial walkdowns at CCNPP were completed prior to NRC direction to perform internal inspections of electrical cabinets.

During this supplemental inspection, CCNPP personnel opened and inspected cabinets to the extent practical. Per plant management direction, the team did not break the plane of the energized cabinets and was unable to move or relocate wires to enhance the inspection. One substitution was made due do to industrial safety concerns as the selected cabinet contained high voltage components.

SWCs for internal inspections of the cabinets are located within Appendix D of this report.

4.4.1 Supplemental Internal Inspection Checklists Supplemental internal inspections of electrical cabinets are documented with Appendix D of this report.

This internal inspection concentrated on adverse internal mounting and missing fasteners. No issues were identified during these supplemental inspections.

To gain access to the remainder of the component would require disassembly of the panel cover and potential exposure of the team to critical safety-related loads. Given the external anchorage available on these components at CCNPP, and the relative ruggedness of these components, the inspection at CCNPP was limited to opening the installed panel doors. No further disassembly was performed.

4-2

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Table 4-1: Table of Potentially Degraded, Nonconforming or Unanalyzed Conditions for Equipment Items at CCNPP Identified During Supplemental Walkdowns.

Component ID Potentially Adverse Seismic Condition Action Taken to Address the Current Status Condition The housing for the unit 2 CACs are not welded CR-2013-001820.

CACs welded per initial design per design drawings. Drawings 61779 and 61780 requirements prior to startup of Containment Air indicate the 4x4 tube steel support columns should Inoperable (initial Operations Unit 2. Equipment returned to Coolers be welded to base plates with all-around welds.

Determination) operable status.

Walkdown Work orders were generated and Unit I CACs verified by previous 2FANHVACCTCLR21 Indicates sparse welds on a few locations and no executed to install welds Unit 1 C Asrd by pre photos and walkdowns to have visible welds on others. There are 8 support CR-2013-002038 written and OD proper welds.

2FANH-VACCTCLR22 locations per CAC. This issue applies to 21, 22,13-002 (Operability 23 and 24 CACs.

Deternination) was subsequently CR-2013-001820 Closed 2FANHVACCTCLR23 completed and determined both CR-2013-002038 Remains open to CACs and IRUs were operable in document U I walkdown.

2FANHVACCTCLR24 the as-found condition, i.e. with the welds missing. Documented in ECP-13-000235.

4-3

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Table 4-1: Table of Potentially Degraded, Nonconforming or Unanalyzed Conditions for Equipment Items at CCNPP Identified During Supplemental Walkdowns.

Component ID Potentially Adverse Seismic Condition Action Taken to Address the Current Status Condition The housing for charcoal filters 21, 22 and 23 are CR-2013-002002.

IRUs welded per design not welded to the 69-ft elevation per design Inoperable (Initial Operations requirements prior to startup of drawings.

Detennination)

Unit 2. Equipment returned to Drawing 61780 indicates 21 and 22 filter housings operable status.

should be welded all-around with a 3/16-inch WO's generated and executed to Unit 1,11 & 13 IRUs, verified by Iodine Removal Units fillet weld. No welds could be seen. Drawings install welds previous photos and walkdowns to (IRUs) 61760 and 61763 show 23 filter housing is welded CR-2013-002038 written and OD have proper welds.

to base plates on two comers and continuously on 13-002 (Operability 2FANHVAC/PIR21 edges where it sits on building steel. These welds Determination) was completed IRU 12 photographic evidence were not observed, and subsequently determined unavailable but OD determined 2FANHVAC/PlR22 both CACs and IRUs were IRU 12 is operable.

2FANHVAC/PIR23 operable in the as-found CR-2013-002002 Closed condition, i.e. with the welds CR-2013-002038 Remains open to missing.

document U I walkdown.

Documented in ECP-13-000235.

4-4

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Table 4-1: Table of Potentially Degraded, Nonconforming or Unanalyzed Conditions for Equipment Items at CCNPP Identified During Supplemental Walkdowns.

Component ID Potentially Adverse Seismic Condition Action Taken to Address the Current Status Condition Degradation was-found on the hold-down nuts.

CR-2013-004351 written to WO's generated for the following Additional pumps inspected and work orders address pumps hold down nuts.

generated to repair Not an operability issue IPUMPSW1 1 C92288332 -

Note: 2PUMPSW23 had an WITH WO FOR PMP REPL PM existing CR-2012-007927 for 1 0122026[B].

pump volute corrosion. New IPUMPSWI2 C92288334-hold down nuts will be included WITH WO FOR PMP REPL PM in WO C91983612.

10122027[B].

1PUMPSW13 C92288335 -

WITH WO C91966439 FOR PMP 2PUMPSW23 REPL PM 10122047[B].

2PUMPSW21 C92288337 -

WITH WO FOR PMP REPL PM 20122006[B].

2PUMPSW22 C92288338 -

WITH WO C92108772 FOR PMP REPL PM 20122007[B].

2PUMPSW23 C92288339 -

WITH WO C91521300 FOR PMP REPL PM 20122027[B].

4-5

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT 5

Licensing Basis Evaluations Constellation Energy Group/CCNPP staff did not utilize the process provided in Reference 2 to perform and document seismic licensing bases evaluations of SSCs with potentially adverse seismic condition.

Instead, all questionable conditions identified by the SWEs during the equipment Seismic Walkdowns or Area Walk-Bys were entered into the station CAP to be further evaluated and addressed as required.

Therefore, no seismic licensing basis evaluations were completed in accordance with the process documented in Reference 2. Table 4-1 in Section 4 of this report provides a sunmmary of the conditions identified during the Seismic Walkdowns and Area Walk-Bys.

Two issues identified by the SWEs during the supplemental Seismic Walkdowns, and Area Walk -Bys were ultimately judged to be a "Potentially Adverse Seismic Condition". The Containment Air Cooling units (CACs) and Iodine Removal Units (IRUs) were both found to have missing welds for mounting to structural steel.. These issues were entered into the CAP system and Operations initially declared the equipment inoperable. An operability determination was subsequently performed and the SSC's were determined to be Operable in the as-found condition. Both the CACs and IRUs were restored to full design requirements during the outage by installing welds per the design drawings.

All issues were corrected prior to the restart of the unit form the outage.

An extent of condition review was conducted as part of the resolution of the Unit 2 CACs and IRUs.

Specifically, the condition of the Unit CACs and IRUs was reviewed. Photographic evidence was reviewed, that depicted the welds in place on the Unit 1 CACs and 2 of the 3 IRUs. No photographic evidence or walkdown documentation was located identifying the number 12 IRU had the proper welds on its mounting plates. As stated previously an Operability Determination (OD) was conducted and it was determined the CACs and IRUs are operable without the welds in place. This OD is applicable to both Unit I and 2. A condition report and corrective actions remain open to complete the Unit 1 walkdowns and verify and/or install welds as needed.

5-1

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT 6

Peer Review 6.1 PEER REVIEW INTRODUCTION 6.1.1 Overview The peer review was performed in accordance with the walkdown guidance document [Ref. 2].

The scope of the Peer Review was limited to the following activities, as the SWEL development process has already been peer reviewed by the original peer review team:

Review of all the checklists completed for the supplemental Seismic Walkdowns & Area Walk-Bys & Internal Inspections Interview with supplemental Seismic Walkdown Team Review of any licensing basis evaluations Review of the final submittal report The inclusion of a summary of the peer review process in the submittal report 6.2 REVIEW OF SAMPLE CHECKLIST & AREA WALK-BYS 6.2.1 Walkdown Review and Review of Checklists The peer team completed a peer review of all SWC's and AWC's completed by the team. The peer review comments shown are those provided to the SWE walkdown team at the time of the review. All comments have been addressed in the final SWCs.

Table 6-1: Table of Peer Review Comments for SWC's Item Tag No.

Equipment Walkdown Item Location Observations Class 7

Enclosure removed for 2CV3938 22 MS HDR CAL-AB-supplemental inspection as ATMOS DUMP 408 required by original submittal.

721 MS HDR Enclosure removed for 2CV3939 ATMOS DUMP CAL-AB-supplemental inspection as 408 required by original submittal.

6-1

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Table 6-1: Table of Peer Review Comments for SWC's Item Tag No.

Equipment Walkdown Item Location Observations Class 7

21 MS HDR Enclosure removed for 2CV39390P ADV CV CAL-AB-supplemental inspection as OPERATOR 408 required by original submittal.

7 CNTMT SPRAY None 2CV4150 HDR 21 ISOL CAL-VALVE CTMT-229 7

CNTMT SPRAY None 2CV4151 HDR 22 ISOL CAL-VALVE CTMT-229 2ERV402 PZR PWR OP CAL-None RV CTMT-229E 10 Update checklist question 5 to CONTAINMENT CAL-N/A, this component 2FANHVACCTCLR21 COOLER 21 CTMT-anchorage was not required to FAN 229S be verified. Suggest adding reference drawings.

10 Update checklist question 5 to CONTAINMENT CAL-N/A, this component 2FANHVACCTCLR22 COOLER 22 CTMT-anchorage was not required to FAN 229S be verified. Suggest adding reference drawings.

10 Update checklist question 5 to CONTAINMENT CAL-N/A, this component 2FANHVACCTCLR23 COOLER 23 CTMT-anchorage was not required to FAN 229S be verified. Suggest adding reference drawings.

10 Update checklist question 5 to CONTAINMENT CAL-N/A, this component 2FANHVACCTCLR24 COOLER 24 CTMT-anchorage was not required to FAN 229S be verified. Suggest adding reference drawings.

6 No photographs available for 2PUMPSW23 23 SW PUMP CAL-ISPR-peer review team to review INT2 due to inspection device utilized for confined space.

6-2

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Table 6-1: Table of Peer Review Comments for SWC's Item Tag No.

Equipment Walkdown Item Location Observations Class 2

Update checklist to include 2BUS2BO1A 480V BUS 21A CAL-AB-anchorage verification 311 reference drawing or calculation.

2 Anchorage inspection 2BUS2B01B 480V BUS 21B CAL-AB-complete as required per 311 original submittal, agree does not require verification.

20 2B DG LOCAL Update checklist to include 2PNL2C6 lB CONTROL CAL-AB-anchorage verification PANEL 416 reference drawing or calculation.

20 Alternate for 2PNL2C6IC due to high-voltage. Agree 2B DG LOCAL with methodology, completed 2PNL2C61A CONTROL CAL-AB-new external inspection PANEL 416 (potential seismic interactions) and supplemental internal inspection required as per original submittal.

0 480V SERV Update checklist to include XFMR U-440-CAL-AB-anchorage verification 2RY51G/T21A 21A GROUND 311 reference drawing or RELAY calculation.

0 480V SERV None XFMR U-440-CAL-AB-2RY5G/T21B 21B GROUND 311 RELAY 6-3

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT Table 6-2: Table of Peer Review Comments for AWC's Area Walk-by conducted after finding Elevations 45 and 69 missing welds on CACs located missing 229S Unit 2 Containment foot support welds on IRU's. Team noted that scaffold rack configuration was procedurally controlled.

6.2.2 Evaluation of Findings In all cases, the issues identified would not prevent the equipment from performing its safety-related function. The peer review team has reviewed the identified issues and associated disposition and agree with the conclusions of Section 4.

6-4

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT 7

References Reference drawings related to SWEL items are cited in the Seismic Walkdown Checklists and if applicable, in the Area-Walkdown Checklists.

1. Letter from M. G. Korsnick to Document Control Desk (NRC) dated November 27, 2012, Response to 10 CFR 50.54(f) Request for Information, Reconmnendation 2.3, Seismic

2.

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

3. NRC (E Leeds and M Johnson) Letter to All Power Reactor Licensees et al., "Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendation 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident,".3, "Recommendation 2.3: Seismic."

7-1

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT A

Project Personnel Certificates Mark A Wright, SWE, A-2 J. G ardiner, Peer R eview er...................................................................

A -3 Joe Crunkleton, SW E, Licensing Basis Reviewer..............................................

A-4 Emran Hussain, SW E, Licensing Basis Reviewer................................................

A-5 A-1

ATTACHMENT 1 SUPPLEMENTAL SEISMIC WALKDOWN REPORT w

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E-ri SQUG Certif'icate of Achievement This is to Certify that IL Joseph-, Crunkleton has Completedthe SQUG Wafkdown Screening andSeismic Evaluation Training Course

§1-felfdune 11-15, 2007 -/

Z Richrd G. Starck U, MPR Assoiatde Inc.

SQUG Inat Pa&l D* Baughman, ARE Corporat SQUG Insctor

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a Certificateof Completion Emran Hussain Training on Near Term Task Force Recommendation 2.3

- Plant Seismic Walkdowns July 11, 2012 Data Robost K.- Kessawara EPRI Manager, Stnjutal Relafty & Integulty

ATTACHMENT (2)

SEISMIC WALKDOWN CHECKLISTS Constellation Energy Nuclear Group, LLC June 28, 2013

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS B

Seismic Walkdown Checklists (SWCs)

Table B-1. Summary of Seismic Walkdown Checklists Completed by CCNPP Personnel (SWEL 1)

Component ID Description Anchorage Verification Required 2CV3938 22 MS HDR ATMOS DUMP no 2CV3939 21 MS HDR ATMOS DUMP no 2CV39390P 21 MS HDR ADV CV OPERATOR no 2CV4150 CNTMT SPRAY HDR 21 ISOL VALVE no 2CV4151 CNTMT SPRAY HDR 22 ISOL VALVE no 2ERV402 PZR PWR OP RV no 2FANHVACCTCLR21 CONTAINMENT COOLER 21 FAN no 2FANHVACCTCLR22 CONTAINMENT COOLER 22 FAN no 2FANHVACCTCLR23 CONTAINMENT COOLER 23 FAN no 2FANHVACCTCLR24 CONTAINMENT COOLER 24 FAN no 2PUMPSW23 23 SW PUMP no B-1

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3938 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

22 MS HDR ATMOS DUMP Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

AUX, 45.00 ft, CAL-AB-408 Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

This walkdown included the valve enclosure. Anchorage inspection was completed for the enclosure.

2.

Is the anchorage free of bent, broken, missing or loose hardware?

3.

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

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

5.

Is the anchorage configuration consistent with plant documentation? (Note:

No Yes Yes Yes N/A B-2

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3938 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

22 MS HDR ATMOS DUMP This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6.

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

Yes Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

10.

Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

Yes Yes Yes Yes B-3

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: [

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3938 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

22 MS HDR ATMOS DUMP Other Adverse Conditions

11.

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

Yes Comments The Area Walkdown Checklist for this area was submitted with the NRC report in 2012 (Reference 7.1).

~.4 ~

Evaluated by:

J. A. Crunkleton E. M. Hussain Date:

4/30/2013 4/30/2013 B-4

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3938 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

22 MS HDR ATMOS DUMP Photos 2CV3938 3-4-2013 B-5

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3938 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

22 MS HDR ATMOS DUMP 2CV3938 3-4-2013 B-6

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: -

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3938 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

22 MS HDR ATMOS DUMP 2CV3938 3-4-2013 B-7

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

N U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3938 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

22 MS HDR ATMOS DUMP 2CV3938 3-4-2013 B-8

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: -N U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3938 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

22 MS HDR ATMOS DUMP 2CV3938 3-4-2013 B-9

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3939 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ATMOS DUMP Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

AUX, 45.00 ft, CAL-AB-408 Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

No This walkdown included the valve enclosure.

2.

Is the anchorage free of bent, broken, missing or loose hardware?

Yes

3.

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

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

Yes Yes B-10

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3939 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ATMOS DUMP Cracking in the caulk was noted between the valve enclosure and its concrete pedestal. This is a cosmetic defect which has no adverse affect the enclosure design function.

5.

Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6.

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

N/A Yes Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

Yes Yes Yes B-11

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3939 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ATMOS DUMP

10.

Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

Yes Other Adverse Conditions

11.

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

Yes Comments The Area Walkdown Checklist for this area was submitted with the NRC report in 2012.

Evaluated by:

J. A. Crunkleton Date:

4/30/2013 E. M. Hussain 4/30/2013 B-12

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N

U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3939 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ATMOS DUMP Photos B-13

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

N U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3939 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ATMOS DUMP 2CV3939 3-4-2013 B-14

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: -

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3939 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ATMOS DUMP 2CV3939 3-4-2013 B-15

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3939 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ATMOS DUMP 2CV3939 3-4-2013 B-16

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3939 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ATMOS DUMP 2CV3939 3-4-2013 B-1 7

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

• N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV3939 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ATMOS DUMP 2CV3939 3-4-2013 B-18

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N

U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV39390P Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ADV CV OPERATOR Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

AUX, 45.00 ft, CAL-AB-408 Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

No

2.

Is the anchorage free of bent, broken, missing or loose hardware?

3.

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

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

Yes N/A N/A B-19

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV39390P Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ADV CV OPERATOR

5.

Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6.

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

N/A Yes Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

10.

Based on the above seismic interaction evaluations, is equipment free of Yes Yes Yes Yes B-20

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV39390P Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ADV CV OPERATOR potentially adverse seismic interaction effects?

Other Adverse Conditions

11.

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

Yes Comments The Area Walkdown Checklist for this area was submitted with the NRC report in 2012 (Reference 7.1).

Evaluated by:

J. A. Crunkleton Date:

4/30/2013 E. M. Hussain 4/30/2013 B-21

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: ý]

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV39390P Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ADV CV OPERATOR Photos 2CV39390P 3-4-2013 B-22

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: -

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV39390P Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ADV CV OPERATOR 2CV39390P 3-4-2013 B-23

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV39390P Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ADV CV OPERATOR 2CV39390P 3-4-2013 B-24

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

N U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV39390P Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ADV CV OPERATOR 2CV39390P 3-4-2013 B-25

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV39390P Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ADV CV OPERATOR 2CV39390P 3-4-2013 B-26

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV39390P Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

21 MS HDR ADV CV OPERATOR 2CV39390P 3-4-2013 B-27

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV4150 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

CNTMT SPRAY HDR 21 ISOL VALVE Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

CAL-CTMT-229, EL. 37-FT Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

No

2.

Is the anchorage free of bent, broken, missing or loose hardware?

N/A

3.

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

N/A B-28

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N

U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV4150 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

CNTMT SPRAY HDR 21 ISOL VALVE

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

5.

Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6.

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

N/A N/A Yes Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

Yes Yes Yes B-29

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

N U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV4150 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

CNTMT SPRAY HDR 21 ISOL VALVE

10.

Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

Yes Other Adverse Conditions

11.

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

Yes Comments Evaluated by:

J. A. Crunkleton Date:

4/30/2013 E. M. Hussain 4/30/2013 B-30

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV4150 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

CNTMT SPRAY HDR 21 ISOL VALVE Photos B-31

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV4150 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

CNTMT SPRAY HDR 21 ISOL VALVE 2CV4150 2-22-2013 B-32

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV4150 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

CNTMT SPRAY HDR 21 ISOL VALVE 2CV4150 2-22-2013 B-33

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV4150 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

CNTMT SPRAY HDR 21 ISOL VALVE 2CV4150 2-222013 B-34

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: -

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV4151 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

CNTMT SPRAY HDR 22 ISOL VALVE Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

CAL-CTMT-229, EL. 39-FT Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

No

2.

Is the anchorage free of bent, broken, missing or loose hardware?

N/A

3.

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

N/A

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

N/A B-35

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

N U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV4151 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

CNTMT SPRAY HDR 22 ISOL VALVE

5.

Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6.

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

N/A Yes Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

10.

Based on the above seismic interaction evaluations, is equipment free of Yes Yes Yes Yes B-36

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: [

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV4151 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

CNTMT SPRAY HDR 22 ISOL VALVE potentially adverse seismic interaction effects?

Comments Other Adverse Conditions

11.

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

Yes Comments Evaluated by:

J. A. Crunkleton Date:

4/30/2013 E. M. Hussain 4/30/2013 B-37

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV4151 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

CNTMT SPRAY HDR 22 ISOL VALVE Photos 2CV4151 2-22-2013 B-38

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV4151 Equipment Class:

(7) Fluid-C Equipment

Description:

CNTMT S

)perated Valves PRAY HDR 22 ISOL VALVE 2CV4151 2-22-2013 B-39

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2CV4151 Equipment Class:

(7) Fluid-Operated Valves Equipment

Description:

CNTMT SPRAY HDR 22 ISOL VALVE 2CV4151 2-22-2013 B-40

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N

U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2ERV402 Equipment Class:

(0) Other Equipment

Description:

PZR PWR OP RV Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

CAL-CTMT-229E Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

No

2.

Is the anchorage free of bent, broken, missing or loose hardware?

N/A

3.

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

N/A

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

N/A B-41

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2ERV402 Equipment Class:

(0) Other Equipment

Description:

PZR PWR OP RV

5.

Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6.

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

N/A Yes Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

The valve is located in the Pressurzer Enclosure, which is a congested area.

Adequate clearance around the valve was observed.

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

10.

Based on the above seismic interaction evaluations, is equipment free of Yes Yes Yes Yes B-42

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2ERV402 Equipment Class:

(0) Other Equipment

Description:

PZR PWR OP RV potentially adverse seismic interaction effects?

Other Adverse Conditions

11.

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

Yes Comments

ý74 /, -

ý Evaluated by:

J. A. Crunkleton E. M. Hussain Date:

4/30/2013 4/30/2013 B-43

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status: r N

U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2ERV402 Equipment Class:

(0) Other Equipment

Description:

PZR PWR OP RV Photos 2ERV402 2-22-2013 B-44

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

N U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2ERV402 Equipment Class:

(0) Other Equipment

Description:

PZR PWR OP RV 2ERV402 2-22-2013 Status:

Y U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR21 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 21 FAN Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

CAL-CTMT-229S, EL. 45-FT Manufacturer/Model:

B-45

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR21 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 21 FAN Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

No

2.

Is the anchorage free of bent, broken, missing or loose hardware?

The housing for the Air Cooler was missing welds between comer columns and base plates. CR-2013-001820 captured the issue.

3.

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

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

5.

Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Anchorage is shown on drawings 61779 and 61780 No Yes N/A N/A B-46

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y n U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR21 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 21 FAN

6.

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

No Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

A scaffold rack is located near the Air Cooler. The rack was open and scaffold components were being used at other location in Containment. Restoration and securing of the scaffold rack is controlled by site procedure prior to startup.

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

10.

Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

Yes Yes Yes Yes Other Adverse Conditions

11.

Have you looked for and found no adverse seismic conditions that could No B-47

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR21 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 21 FAN adversely affect the safety functions of the equipment?

Comments Equivalent Air Cooler housing welds were installed during the 2013 RFO per engineering package ECP 000235.

Evaluated by:

J. A. Crunkleton Date:

4/30/2013 E. M. Hussain 4/30/2013 Photos B-48

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y U

O Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR21 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 21 FAN 2FANHVACCTCLR21 2-22-2013 B-49

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR21 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 21 FAN 2FANHVACCTCLR21 2-22-2013 B-50

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR21 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 21 FAN 2FANHVACCTCLR21 2-22-2013 B-51

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR21 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 21 FAN 1

C1 1 A.

2-01 2FANHVACCTCLR21 2-22-2013 B-52

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR22 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 22 FAN Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

CAL-CTMT-229S, EL. 45-FT Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

No

2.

Is the anchorage free of bent, broken, missing or loose hardware?

The housing for the Air Cooler was missing welds between corner columns and base plates. CR-2013-001820 captured the issue.

3.

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

No Yes

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

N/A B-53

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR22 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 22 FAN

5.

Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Anchorage is shown on drawings 61779 and 61780

6.

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

N/A No Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

A scaffold rack is located near the Air Cooler. The rack was open and scaffold components were being used at other location in Containment. Restoration and securing of the scaffold rack is controlled by site procedure prior to startup.

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

Yes Yes Yes B-54

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR22 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 22 FAN

10.

Based on the above seismic interaction evaluations, is equipment free of Yes potentially adverse seismic interaction effects?

Other Adverse Conditions

11.

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

Comments Equivalent Air Cooler housing welds were installed during the 2013 RFO per engineering package ECP-13-000235..

Evaluated by:

J. A. Crunkleton Date:

4/30/2013 E. M. Hussain 4/30/2013 B-55

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y MJ U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR22 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 22 FAN Photos 2FANHVACCTCLR22 2-22-2013 B-56

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR22 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 22 FAN 2FANHVACCTCLR22 2-22-2013 B-57

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR22 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 22 FAN 2FANHVACCTCLR22 2-22-2013 B-58

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR22 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 22 FAN 2FANHVACCTCLR22 2-22-2013 B-59

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR23 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 23 FAN Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

CAL-CTMT-229S, EL. 69-FT Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

No of SWEL items requiring such verification)?

2.

Is the anchorage free of bent, broken, missing or loose hardware?

No The housing for the Air Cooler was missing welds between corner columns and base plates. CR-2013-001820 captured the issue.

3.

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

Yes

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

N/A

5.

Is the anchorage configuration consistent with plant documentation? (Note:

N/A B-60

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR23 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 23 FAN This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Anchorage is shown on drawings 61779 and 61780

6.

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

No Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

A scaffold rack is located near the Air Cooler. The rack was open and scaffold components were being used at other location in Containment. Restoration and securing of the scaffold rack is controlled by site procedure prior to startup.

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

10.

Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

Yes Yes Yes Yes B-61

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR23 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 23 FAN Other Adverse Conditions

11.

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

No Comments Equivalent Air Cooler housing welds were installed during the 2013 RFO per engineering package ECP 000235.

Evaluated by:

J. A. Crunkleton E. M. Hussain Date:

4/30/2013 4/30/2013 Photos B-62

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y n U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR23 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 23 FAN 2FANHVACCTCLR23 2-22-2013 B-63

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR23 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 23 FAN B-64

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR23 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 23 FAN 2FANHVACCTCLR23 2-22-2013 B-65

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y n U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR23 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOlLER 23 FAN 2FANHVACCTCLR23 2-22-2013 B-66

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR24 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 23 FAN Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

CAL-CTMT-229S, EL. 69-FT Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

No

2.

Is the anchorage free of bent, broken, missing or loose hardware?

The housing for the Air Cooler was missing welds between corner columns and base plates. CR-2013-001820 captured the issue.

3.

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

No Yes

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

N/A

5.

Is the anchorage configuration consistent with plant documentation? (Note:

N/A B-67

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y I U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR24 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 23 FAN This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Anchorage is shown on drawings 61779 and 61780

6.

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

No Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

A scaffold rack is located near the Air Cooler. The rack was open and scaffold components were being used at other location in Containment. Restoration and securing of the scaffold rack is controlled by site procedure prior to startup.

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

10.

Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

Yes Yes Yes Yes B-68

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y [

U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR24 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 23 FAN Other Adverse Conditions

11.

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

No Comments Equivalent Air Cooler housing welds were installed during the 2013 RFO per engineering package ECP-1 3-000235.

Evaluated by:

J. A. Crunkleton E. M. Hussain Date:

4/30/2013 4/30/2013 Photos B-69

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR24 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 23 FAN 2FANHVACCTCLR24 2-22-2013 B-70

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR24 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 23 FAN 2FANHVACCTCLR24 2-22-2013 B-71

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR24 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOLER 23 FAN 2FANHVACCTCLR24 2-22-2013 B-72

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2FANHVACCTCLR24 Equipment Class:

(10) Air Handlers Equipment

Description:

CONTAINMENT COOlLER 23 FAN 2FANHVACCTCLR24 2-22-2013 B-73

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PUMPSW23 Equipment Class:

(6) Vertical Pumps Equipment

Description:

23 SW Pump Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

Intake Structure EL. (-) 7-FT, CAL-ISPR-INT2 Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

No

2.

Is the anchorage free of bent, broken, missing or loose hardware?

Yes

3.

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

Degradation was-found on the hold-down nuts. CR-2013-004351 was written to document this issue. Corrosion is surface only and SWT team judged fasteners have adequate capacity.

Note that CR-2012-007927 is in the CAP system to capture corrosion on 23 SW Pump Volute. Work Order C91983612 is open to make repairs during the next 23 SW Pump Replacment. Nut replacement will be included in WO.

No B-74

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PUMPSW23 Equipment Class:

(6) Vertical Pumps Equipment

Description:

23 SW Pump

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

5.

Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6.

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

Based on nut material remaining and adequate bolt projection the SW Pump is judged to be operable.

Yes N/A No Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

Yes Yes N/A B-75

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y n U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PUMPSW23 Equipment Class:

(6) Vertical Pumps Equipment

Description:

23 SW Pump

10.

Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

Yes Other Adverse Conditions

11.

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

Comments Area Walkdown Checklist for the Unit 2 Intake Structure was completed and issued with the 2012 NRC walkdown report (Reference 7.11).

The Saltwater Pumps are located in pits that are confined spaces. The walkdown was conducted remotely using a camera on an extension pole. No pictures were taken.

B-76

ATTACHMENT 2 SEISMIC WALKDOWN CHECKLISTS Status:

Y M U

Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PUMPSW23 Equipment Class:

(6) Vertical Pumps Equipment

Description:

23 SW Pump Evaluated by:

J. A. Crunkleton Date:

5/13/2013 M. A Wright 5/13/2013 Photos - NONE B-77

ATTACHMENT (3)

AREA WALK-BY CHECKLISTS Constellation Energy Nuclear Group, LLC June 28, 2013

ATTACHMENT 3 AREA WALK-BY CHECKLISTS C

Area Walk-By Checklists (AWCs)

Table C-1: Summary of Area Walk-By Check Lists Completed by CCNPP Personnel Area Number Location Elevation CTMT-229S Unit 2 Containment 45' and 69' C-1

ATTACHMENT 3 AREA WALK-BY CHECKLISTS Area Walk-By Checklist (AWC)

Staus: Y FN U Location (Bldg, Elev, Room/Area):

Area : CTMT-229S; El 45 & 69-FT 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)?

Iodine Removal Units (IRUs) located adjacent to the Containment Air Coolers (CACs) had missing welds. The condition was documented in CR-2013-002002.

2.

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

No Yes Yes - except for the the IRUs identified in Section 1 above.

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)?

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)?

Scaffold racks located on Elevation 45-FT were open during the Area Walkdown. Site procedures exist that ensure these racks are secured prior to startup.

5.

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

Yes Yes Yes C-1

ATTACHMENT 3 AREA WALK-BY CHECKLISTS Area Walk-By Checklist (AWC)

Staus: Y F U Location (Bldg, Elev, Room/Area):

Area : CTMT-229S; El 45 & 69-FT

6.

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

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)?

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 Welds for the IRUs were restored during the 2013 RFO.

Evaluated by:

J. A. Crunkleton Date:

4/30/2012 E. M. Hussain 4/30/2013 C-2

ATTACHMENT 3 AREA WALK-BY CHECKLISTS Scaffold Rack near 21 Containment Air Cooler EL. 45-FT Screens are temporarily attached to the Cooler Housing to protect their coils during outages.

C-3

ATTACHMENT 3 AREA WALK-BY CHECKLISTS Missing welds from 21 Iodine Removal Unit base 23 Iodine Removal Unit Missing welds from 23 Iodine Removal Unit base C-4

ATTACHMENT (4)

SWCs FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Constellation Energy Nuclear Group, LLC June 28, 2013

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS D

SWC's for Supplemental Internal Inspections of Electrical Cabinets Table D-1: Summary of Supplemental Internal Inspections Completed by CCNPP Equipment Component ID Description Class 2

2BUS2B01A(Note 1, 480V BUS 21A 2

2BUS2B01B 480V BUS 21B 20 2PNL2C61B(Note 1) 2B DG LOCAL CONTROL PANEL 20 2PNL2C61C(Not e 2) 2B DG LOCAL CONTROL PANEL 0

2RY51G/T21A(No tel) 480V SERV XFMR U-440-21A GROUND RELAY 0

2RY51G/T21B 480V SERV XFMR U-440-21 B GROUND RELAY 20 2PNL2C61A(Note 2) 2B DG LOCAL CONTROL PANEL Notes:

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

2) 2PNL2C61C could not be inspected due to cabinet containing high voltage components. 2PNL2C261A was inspected as a substitute for SWEL item #75.

D-1

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2B01A Equipment Class:

(2) Low Voltage Switchgear Equipment

Description:

480V BUS 21A Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

AUX, 27.00 ft, CAL-AB-311 Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

Yes

2.

Is the anchorage free of bent, broken, missing or loose hardware?

3.

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

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

Yes Yes N/A D-2

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: -

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2B01A Equipment Class:

(2) Low Voltage Switchgear Equipment

Description:

480V BUS 21A

5.

Is the anchorage configuration consistent with plant documentation? (Note:

Yes This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Anchorage is shown in calculation CA02066.

6.

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

Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

Yes

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

Yes

10.

Based on the above seismic interaction evaluations, is equipment free of Yes potentially adverse seismic interaction effects?

D-3

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2B01A Equipment Class:

(2) Low Voltage Switchgear Equipment

Description:

480V BUS 21A Other Adverse Conditions

11.

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

Yes Comments Area Walk-by completed 8/15/2012. AWC was included in NRC Report submitted in 2012 (Reference 7.1).

Pictures from 8/15/2012 walkdown showing the outside of the cabinets are also included in this report.

Cabinet base is welded to embedded floor steel per design.

Evaluated by:

J. A. Crunkleton Date:

4/30/2013 D-4

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2B01A Equipment Class:

(2) Low Voltage Switchgear Equipment

Description:

480V BUS 21A E. M. Hussain 4/30/2013 Photos D-5

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N

U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2B01A Equipment Class:

(2) Low Volta Equipment

Description:

480V BUS 21 ge Switchgear A

2BUS2B01A 8-15-2012 2BUS2B01A 8-15-2012 D-6

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2B01A Equipment Class:

(2) Low Volta Equipment

Description:

480V BUS 21 ge Switchgear A

2BUS2B01A 2-19-2013 2BUS2B01A 2-19-2013 D-7

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2B01A Equipment Class:

(2) Low Voltage Switchgear Equipment

Description:

480V BUS 21A 2BUS2B01A 2-19-2013 2BUS2B01A 2-19-2013 D-8

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2B01B Equipment Class:

(2) Low Voltage Switchgear Equipment

Description:

480V BUS 21B Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

AUX, 27.00 ft, CAL-AB-311 Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

No

2.

Is the anchorage free of bent, broken, missing or loose hardware?

Yes

3.

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

Yes

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

N/A D-9

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2B01B Equipment Class:

(2) Low Voltage Switchgear Equipment

Description:

480V BUS 21B

5.

Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which anchorage configuration verification is required.)

6.

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

N/A Yes Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

10.

Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

Yes Yes Yes Yes D-10

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: -

N U Seismic Walkdown Checklist (SWC)

EquipmentlDNo.:

2BUS2B01B Equipment Class:

(2) Low Voltage Switchgear Equipment

Description:

480V BUS 21B Other Adverse Conditions

11.

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

Yes Comments Area Walk-by completed 8/15/2012. AWC was included in NRC Report submitted in 2012 (Reference 7.1).

Pictures from 8/15/2012 walkdown showing the outside of the cabinets are also included in this report.

Cabinet base is welded to embedded floor steel per design.

Evaluated by:

J. A. Crunkleton Date:

4/30/2013 E. M. Hussain 4/30/2013 D-11

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status:

• N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2B01B Equipment Class:

(2) Low Voltage Switchgear Equipment

Description:

480V BUS 21B Photos 2BUS2B01 B 8-15-2012 D-12

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2B01B Equipment Class:

(2) Low Voltage Switchgear Equipment

Description:

480V BUS 21B 2BUS2B01B 8-15-2012 D-13

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2B01B Equipment Class:

(2) Low Voltage Switchgear Equipment

Description:

480V BUS 21B 2BUS2B01B 2-23-2013 D-14

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2B01B Equipment Class:

(2) Low Voltage Switchgear Equipment

Description:

480V BUS 21B 2BUS2B01 B 2-23-2013 D-15

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2BUS2BO1B Equipment Class:

(2) Low Voltage Switchgear Equipment

Description:

480V BUS 21B 2BUS2B01B 2-23-2013 D-16

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61A Equipment Class:

(20) Instrumentation and Control Panels and Cabinets Equipment

Description:

2B DG LOCAL CONTROL PANEL Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

AUX, 45.00 ft, CAL-AB-416 Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

No

2.

Is the anchorage free of bent, broken, missing or loose hardware?

Yes

3.

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

Yes

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

Yes D-17

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61A Equipment Class:

(20) Instrumentation and Control Panels and Cabinets Equipment

Description:

2B DG LOCAL CONTROL PANEL

5.

Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Cabinet anchorage was modified under the A-46 Project (MCR 94-024-011-00)

6.

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

N/A Yes Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

Yes Yes Yes D-18

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status:

• N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61A Equipment Class:

(20) Instrumentation and Control Panels and Cabinets Equipment

Description:

2B DG LOCAL CONTROL PANEL

10.

Based on the above seismic interaction evaluations, is equipment free of Yes potentially adverse seismic interaction effects?

Other Adverse Conditions

11.

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

Yes Comments The AWC for Room AB-416 was completed and documented with the 2013 NRC Submittal

~.A ~

Evaluated by:

J. A. Crunkleton E. M. Hussain Date:

5/17/2013 5/17/2013 D-19

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61A Equipment Class:

(20) Instrumentation and Control Panels and Cabinets Equipment

Description:

2B DG LOCAL CONTROL PANEL Photos 2PNL2C61A D-20

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61A Equipment Class:

(20) Instrumentation and Control Panels and Cabinets Equipment

Description:

2B DG LOCAL CONTROL PANEL D-21

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61A Equipment Class:

(20) Instrumentation and Control Panels and Cabinets Equipment

Description:

2B DG LOCAL CONTROL PANEL 2PNL2C61A D-22

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61A Equipment Class:

(20) Instrumentation and Control Panels and Cabinets Equipment

Description:

2B DG LOCAL CONTROL PANEL 2PNL2C61A D-23

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61B Equipment Class:

(20) Instrumentation and Control Panels and Cabinets Equipment

Description:

2B DG LOCAL CONTROL PANEL Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

AUX, 45.00 ft, CAL-AB-416 Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

Yes

2.

Is the anchorage free of bent, broken, missing or loose hardware?

Yes

3.

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

Yes D-24

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61B Equipment Class:

(20) Instrumentation and Control Panels and Cabinets Equipment

Description:

2B DG LOCAL CONTROL PANEL

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

5.

Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Cabinet anchorage was modified under the A-46 Project. Anchorage is shown in MCR 94-024-011-00.

6.

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

Yes Yes Yes Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

8.

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

Yes Yes D-25

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61B Equipment Class:

(20) Instrumentation and Control Panels and Cabinets Equipment

Description:

2B DG LOCAL CONTROL PANEL

9.

Do attached lines have adequate flexibility to avoid damage?

Yes

10.

Based on the above seismic interaction evaluations, is equipment free of Yes potentially adverse seismic interaction effects?

Other Adverse Conditions

11.

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

Comments The AWC for Room AB-416 was completed and documented with the 2013 NRC Submittal (Reference 7.1).

Evaluated by:

J. A. Crunkleton Date:

5/17/2013 D-26

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61B Equipment Class:

(20) Instrumentation and Control Panels and Cabinets Equipment

Description:

2B DG LOCAL CONTROL PANEL E. M. Hussain 5/17/2013 Photos D-27

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61B Equipment Class:

(20) InstrumE Equipment

Description:

2B DG LOC,

~ntation and Control Panels and Cabinets

• L CONTROL PANEL 2PNL2C61B D-28

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61B Equipment Class:

(20) Instrumentation and Control Panels and Cabinets Equipment

Description:

2B DG LOCAL CONTROL PANEL 2PNL2C61B D-29

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2PNL2C61B Equipment Class:

(20) InstrumE Equipment

Description:

2B DG LOC/

ntation and Control Panels and Cabinets

,L CONTROL PANEL 2PNL2C61B Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2RY51G/T21A Equipment Class:

(0) Other Equipment

Description:

480V SERV XF:MR U-440-21A GROUND RELAY Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

AUX, 27.00 ft, CAL-AB-311 D-30

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2RY51G/T21A Equipment Class:

(0) Other Equipment

Description:

480V SERV XFMR U-440-21A GROUND RELAY Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

of SWEL items requiring such verification)?

Relay on 2BUS2BO 1A

2.

Is the anchorage free of bent, broken, missing or loose hardware?

3.

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

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

5.

Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Yes Yes Yes N/A Yes D-31

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2RY51G/T21A Equipment Class:

(0) Other Equipment

Description:

480V SERV XFMR U-440-21A GROUND RELAY Relay mounting information is noted in seismic report WEST01.

6.

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

Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

Yes

8.

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

9.

Do attached lines have adequate flexibility to avoid damage?

Yes

10.

Based on the above seismic interaction evaluations, is equipment free of Yes potentially adverse seismic interaction effects?

Other Adverse Conditions D-32

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2RY51G/T21A Equipment Class:

(0) Other Equipment

Description:

480V SERV XFMR U-440-21A GROUND RELAY

11.

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

Comments Evaluated by:

J. A. Crunkleton Date:

4/30/2013 E. M. Hussain 4/30/2013 Photos D-33

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2RY51G/T21A Equipment Class:

(0) Other Equipment

Description:

480V SERV XFMR U-440-21A GROUND RELAY 2RY51G/T21A 8-15-2012 2RY51G/T21A 2-19-2013 2RY51G/T21A 2-19-2013 D-34 M

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2RY51G/T21A Equipment Class:

(0) Other Equipment

Description:

480V SERV XFMR U-440-21A GROUND RELAY Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2RY51G/T21B Equipment Class:

(0) Other Equipment

Description:

480V SERV XFMR U-440-21B GROUND RELAY Project:

CCNPP 2 SWEL Location (Bldg, Elev, Room/Area):

AUX, 27.00 ft, CAL-AB-311 Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.

The space below each of the following questions may be used to record the results of judgments and findings.

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

Anchorage

1.

Is anchorage configuration verification required (i.e., is the item one of the 50%

No of SWEL items requiring such verification)?

Relay on 2BUS2BOIB

2.

Is the anchorage free of bent, broken, missing or loose hardware?

Yes D-35

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status:

N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2RY51G/T21B Equipment Class:

(0) Other Equipment

Description:

480V SERV XFMR U-440-21B GROUND RELAY

3.

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

Yes

4.

Is the anchorage free of visible cracks in the concrete near the anchors?

N/A

5.

Is the anchorage configuration consistent with plant documentation? (Note:

This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6.

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

N/A Yes Interaction Effects

7.

Are soft targets free from impact by nearby equipment or structures?

8.

Are overhead equipment, distribution systems, ceiling tiles and lighting, and Yes Yes D-36

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N

U Seismic Walkdown Checklist (SWC)

EquipmentID No.:

2RY51G/T21B Equipment Class:

(0) Other Equipment

Description:

480V SERV XFMR U-440-21 B GROUND RELAY masonry block walls not likely to collapse onto the equipment?

9.

Do attached lines have adequate flexibility to avoid damage?

10.

Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?

Yes Yes Other Adverse Conditions

11.

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

Comments D-37

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2RY51G/T21B Equipment Class:

(0) Other Equipment

Description:

480V SERV XF:MR U-440-21B GROUND RELAY

~;~4 ~i~}

Evaluated by:

J. A. Crunkleton Date:

4/30/2013

/

if E. M. Hussain Date 4/30/2013 Photos zl*Ybl U/I II*

zib ;UI z 2RY51 G/T21 B 2-23-2013 D-38

ATTACHMENT 4 SWCS FOR SUPPLEMENTAL INTERNAL INSPECTIONS OF ELECTRICAL CABINETS Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.:

2RY51G/T21B Equipment Class:

(0) Other Equipment

Description:

480V SERV XFMR U-440-21B GROUND RELAY 2RY51G/T21B 2-23-2013 2RY51 G/T21B 2-23-2013 D-39