ML12340A487

Enclosure to SBK-L-12242, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic

ML12340A487
Person / Time
Site:	Seabrook
Issue date:	11/21/2012
From:	Stevenson & Associates
To:	Office of Nuclear Reactor Regulation, Nextera Energy, NextEra Energy Seabrook
References
SBK-L-12242
Download: ML12340A487 (433)

Text

Enclosure to SBK-L-12242 Seabrook Station Seismic Walkdown Report

SEISMIC WALKDOWN REPORT IN RESPONSE TO THE 50.54(f) INFORMATION REQUEST REGARDING FUKUSHIMA NEAR-TERM TASK FORCE RECOMMENDATION 2.3:

SEISMIC for the SEABROOK STATION UNIT 1 NRC Docket No. 50-443 NextEra Energy Seabrook Station 626 Lafayette Road Seabrook, NH 03874 Prepared by:

Stevenson & Associates 275 Mishawum Road, Suite 200 Woburn, MA 01801 Submittal Date November 2012 Name & Title Affiliation Signature Date Preparer: On File S&A On File 11/21/2012 Reviewer: On File On File S&A 11/21/2012 Approver:

On File S&A On File 11/21/2012 Site Lead: NextEra On File Site Sponsor: NextEra On File

Contents List of T a b le s ......................................................................................................... i Executive Summary ................................................................................................ ii 1 Introduction ..................................................................................................................... I 1.1 Background ..................................................................................................... 1 1.2 Plant Overview ..................................................................................................... 1 1 .3 A p p ro a ch .................................................................................................................. 1 2 Seismic Licensing Basis............................................................................................ 2 3 PersonnelQualifications............................................................................................ 4 3 .1 O ve rv ie w .................................................................................................................. 4 3.2 Project Personnel ................................................................................................ 4 3.3 Equipment Selection Personnel ........................................................................... 5 3.4 Seism ic W alkdown Engineers .............................................................................. 5 3.5 Licensing Basis Reviewers ....................................................................................... 5 3.6 IPEEE Reviewers ..................................................................................................... 5 3.7 Peer Review Team ................................................................................................... 5 3.8 Additional Personnel ................................................................................................ 5 4 Selection of SSCs .................................................................................................... 7 5 Seismic Walkdowns and Area Walk-Bys ................................................................... 8 5 .1 O ve rv ie w .................................................................................................................. 8 5.2 Seism ic W alkdowns ............................................................................................. 8 5.3 Area W alk-Bys .................................................................................................. 13 6 Licensing Basis Evaluations..................................................................................... 17 7 IPEEE VulnerabilitiesResolution Report.................................................................. 18 8 Peer Review ................................................................................................................... 19 9 References ..................................................................................................................... 20 A Project PersonnelResumes and SWE Certificates.............................................. A-1 A.1 Introduction ............................................................................................................ A-1

A.2 Resumes & Certifications ................................................................................... A-1 B SWEL Selection Report.......................................................................................... B-1 Table 1: SWEL Walkdown Locations ...................................................................... B-1 0 Attachment A: Master Equipment List (Base List 1 & Base List 2) ............................ B-1i1 C Seismic Walkdown Checklists (SWCs) ................................................................. C-1 D Area Walk-By Checklists (AWCs) ........................................................................... D-1 E Plan for FutureSeismic Walkdown of InaccessibleEquipment .......................... E-1 F PeerReview Report................................................................................................. F -1 Attachment 1: Peer Review Checklist ............................................................................. F-8

List of Tables Table 3-1. Personnel Roles ...................................................................................... 4 Table 5-1. Anchorage Configuration Confirmation ..................................................... 10 Table 5-2. Issues Identified during Seismic W alkdowns .............................................. 12 Table 5-3. Issues Identified during Area W alk-Bys ......................................................... 16

Executive Summary The purpose of this report is to provide information as requested by the Nuclear Regulatory Commission (NRC) in its March 12, 2012 letter issued to all power reactor licensees and holders of construction permits in active or deferred status. (Ref. 5) In particular, this report provides information requested to address Enclosure 3, Recommendation 2.3: Seismic, of the March 12, 2012 letter. (Ref. 5)

The 50.54(f) letter requires, in part, all U.S. nuclear power plants to perform seismic walkdowns to identify and address degraded, non-conforming or unanalyzed conditions and to verify the current plant configuration is within the current seismic licensing basis.

This report documents the seismic walkdowns performed at Seabrook Station Unit 1 in response, in part, to the 50.54(f) letter issued by the NRC.

The Nuclear Energy Institute (NEI), supported by industry personnel, cooperated with the NRC to prepare guidance for conducting seismic walkdowns as required in the 50.54(f) letter, Enclosure 3, Recommendation 2.3: Seismic. (Ref. 5) The guidelines and procedures prepared by NEI and endorsed by the NRC were published through the Electric Power Research Institute (EPRI) as EPRI Technical Report 1025286, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, dated June 2012; henceforth, referred to as the "EPRI guidance document." (Ref. 1) Seabrook has utilized this NRC endorsed guidance as the basis for the seismic walkdowns and this report. (Ref. 1)

The EPRI guidance document was used to perform the engineering walkdowns and evaluations described in this report. In accordance with the EPRI guidance document, the following topics are addressed in the subsequent sections of this report.

• Seismic Licensing Basis

• Personnel Qualifications

" Selection of Systems, Structures, and Components (SSC)

• Seismic Walkdowns and Area Walk-Bys

" Seismic Licensing Basis Evaluations

" IPEEE Vulnerabilities Resolution Report

• Peer Review Seismic Licensing Basis The safe shutdown earthquake for the Seabrook Station site is 0.25g horizontal ground acceleration and 0.17g vertical ground acceleration. (Ref. 2 section 3.7)

Personnel Qualifications The walkdown team consisted of experienced site personnel with Civil, Operations, and PRA backgrounds. The site personnel were supplemented by two vendors with ii

significant experience in the areas of seismic design and the performance of seismic walkdowns. The personnel who performed the key activities required to fulfill the objectives and requirements of the 50.54(f) letter are qualified and trained as required in the EPRI guidance document. (Ref. 1).

Selection of SSCs One hundred and two (102) components were selected for the walkdown effort, including spent fuel pool items. These components were selected as described in the EPRI guidance document, Section 3: Selection of SSCs. (Ref. 1)

Seismic Walkdowns and Area Walk-Bys Section 5, Appendix C, and Appendix D of this report documents the equipment Seismic Walkdowns and the Area Walk-Bys. The online seismic walkdowns for Seabrook Station Unit 1 were performed August 29-31, 2012 with additional walkdowns on September 14, 2012 to inspect selected electrical equipment and September 20, 2012 to inspect equipment in Containment. The majority of the walkdown activities were conducted by two 2-person Seismic Walkdown teams.

The seismic walkdown teams inspected 99 of the 102 components on the SWEL (comprised of SWEL 1 and SWEL 2). Walkdowns for 3 components were deferred due to accessibility issues resulting from energized equipment. These 3 remaining items will be walked down during a unit outage or another time when the equipment is accessible, as appropriate. Anchorage verification was required for a minimum of 30 components. (Ref. 1) A total of 39 anchorage configurations were confirmed to be installed in accordance with the station documentation.

During the seismic walkdowns three (3) Condition Reports (CRs) were issued for conditions such as corrosion on structural supports. After evaluation through the corrective action process, it was determined that none of the conditions identified in the CRs were adverse seismic conditions.

Seismic Licensing Basis Evaluations Conditions identified during the walkdowns were documented on the SWCs, AWCs, and entered into the CAP. For those conditions that required it seismic licensing basis evaluations were completed and documented within the CR. Tables 5-2 and 5-3 in the report provide the CR, a summary of the condition, and the action completion status.

IPEEE Vulnerabilities No vulnerabilities were identified as a result of the effort that addressed the Individual Plant Examination of External Events (IPEEE).

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Peer Reviews The Peer Review of the walkdowns consisted of two teams made up of Operations and PRA representatives and structural/seismic engineers. The structural/seismic engineers made up the SWE teams, but also served to peer review each other's work. The Operations and PRA representatives also participated in some of the walkdowns for logistical support as well as peer review. Appendix F of this report contains a summary of the Peer Review. The Peer Review determined that the objectives and requirements of the 50.54(f) letter are met. Further, it was concluded by the peer reviews that the efforts completed and documented within this report are in accordance with the EPRI guidance document.

Summary In summary, seismic walkdowns have been completed at the Seabrook Station 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.

Evaluations of the identified conditions are complete and documented within the CAP.

These evaluations determined the Seismic Walkdowns resulted in no adverse anchorage conditions, no adverse seismic spatial interactions, and no other adverse seismic conditions associated with the items on the SWEL. Similarly, the Area Walk-Bys resulted with no adverse seismic conditions associated with other SSCs located in the vicinity of the SWEL item(s).

The Seismic Walkdowns identified several minor issues predominantly pertaining to maintenance of long term structural integrity of supports as noted in Tables 5.2 and 5.3.

The Seismic Walkdowns identified no degraded, nonconforming, or unanalyzed conditions that required either immediate or follow-on action(s). No planned or newly identified protection or mitigation features have resulted from the efforts to address the 50.54(f) letter.

Follow-on activities required to complete the efforts to address Enclosure 3 of the 50.54(f) letter include inspection of 3 items. These inspections are deferred because the cabinets were inaccessible due to the potential electrical hazard from energized buswork.

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I Introduction

1.1 BACKGROUND

In response to Near-Term Task Force (NTTF) Recommendation 2.3, the Nuclear Regulatory Commission (NRC) issued a 10CFR50.54(f) letter on March 12, 2012 requesting that all licensees perform seismic walkdowns to identify and address plant degraded, non-conforming, or unanalyzed conditions, with respect to the current seismic licensing basis. The Nuclear Energy Institute (NEI), through the Electric Power Research Institute (EPRI), prepared industry guidance to assist licensees in responding to this NRC request. The industry guidance document, EPRI Technical Report 1025286, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, dated June 2012 (Reference 1), was endorsed by the NRC on May 31, 2012. NextEra Energy Seabrook has committed to using this NRC-endorsed guidance as the basis for completing the walkdown effort.

1.2 PLANT OVERVIEW Seabrook Station (SBK) consists of a pressurized water reactor (PWR) generating unit located in Seabrook, New Hampshire. Seabrook has a containment building of concrete construction with a carbon steel liner. The unit is rated at 3648 MWth power, and was originally designed and constructed with joint participation by Westinghouse Electric Corporation, United Engineers & Constructors, and Public Service Company of New Hampshire. Seabrook began commercial operation in August 1990 (Seabrook Power Station Updated Final Safety Analysis Report (Reference 2), Section 1.1).

1.3 APPROACH The EPRI Seismic Walkdown Guidance (Reference 1) was used for the Seabrook seismic walkdowns and evaluations described in this report. In accordance with Reference 1, the following topics are addressed in the subsequent sections of this report:

• Seismic Licensing Basis

• Personnel Qualifications

• Selection of SSCs

• Seismic Walkdowns and Area Walk-Bys

• Licensing Basis Evaluations

• IPEEE Vulnerabilities Resolution Report

• Peer Review 1

2 Seismic Licensing Basis The licensing basis for Seismic Category I (SC-1) equipment at Seabrook Station is defined in the UFSAR (Ref. 2) Section 3.7(B). Site design ground motion response spectra for the Safe Shutdown Earthquake (SSE) are provided in UFSAR Figures 3.7(B)-I, 3.7(B)-2 and 3.7(B)-3 and adhere to Regulatory Guide 1.60, Design Response Spectra for Seismic Design of Nuclear Power Plants (Reference 11). Damping values for SC-I equipment are listed in UFSAR Table 3.7(B)-i and conform to Regulatory Guide 1.61, Damping Values for Seismic Design of Nuclear Power Plants (Reference 12).

As defined in UFSAR Section 2.5, the SSE is based on the postulated occurrence of a magnitude VIII(MM) earthquake located at the site. The horizontal peak acceleration associated with the maximum earthquake potential intensity VIII(MM) according to the intensity-acceleration relationship established by Trifunac and Brady (1975) is 0.25g (mean plus one sigma).

Assuming that the vertical peak acceleration is two-thirds of the horizontal acceleration (Newmark and Hall, 1977), 0.167g is selected accordingly.

SC-i equipment is classified according to Regulatory Guide 1.29, Seismic Design Classification (Ref. 13), and is discussed in UFSAR Section 3.2.1, which states:

"CategoryI structures, systems, and components are those that are important to safety and designed to remain functional in the event of a safe shutdown earthquake (SSE).

These structures,systems, and components are those necessaryto assure:

0 The integrity of the reactorcoolant pressure boundary (RCPB).

• The capabilityto shutdown the reactorand maintain it in a safe condition.

0 The capability to prevent or mitigate the consequences of accidents that could result in potentialoffsite exposures.

In addition, Seismic Category I structures, systems, and components are designed to remain functional and within applicable stress and deformation limits (elastic range of materials) when subjected to the effects of the vibratory motion of the operating basis earthquake (OBE) in combination with normal operating loads."

Per UFSAR Section 3.10(B).1, SC-I electrical equipment within the UE&C scope of supply was qualified per the guidelines recommended in IEEE Standard 344-1975 and Regulatory Guide 1.100, similar to current requirements for nuclear Safety Related components. Per UFSAR Section 3.10(N).1 SC-i electrical equipment within the Westinghouse scope of supply was qualified per IEEE Standard 344-75 (Ref. 14).

Mechanical equipment was qualified per the requirements of ASME B&PV Code,Section III, Subsections NB, NC or ND, 1971, 1974 and later addenda.

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For concrete structures and components, the basic code for determining the section strengths is ACI 318-71 (Ref. 15), or later.

For steel structures and components, the basic code for determining the section strengths is the AISC Steel Construction Manual, 7th Edition (Ref. 16) or later.

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3 Personnel Qualifications 3.1 OVERVIEW This section of the report identifies the personnel who participated in the NTTF 2.3 Seismic Walkdown efforts. A description of the responsibilities of each Seismic Walkdown participant's role(s) is provided in Section 2 of the EPRI Seismic Walkdown Guidance (Reference 1). Rdsum6s contained in Appendix A provide personnel experience and qualification information.

3.2 PROJECT PERSONNEL Table 3-1 below summarizes the names and corresponding roles of personnel who participated in the NTTF 2.3 Seismic Walkdown effort.

Table 3-1. Personnel Roles Equipment Seismic L Name Nae eient Selection Plant Walkdown icensing Basis IPEEE Reiwr Peer evwr Engineer Operations Engineer Review Reviewer Reviewer (SWE)

Seabrook (NextEra Energy)

T. Cassidy X X K. Kiper X X X(note 1)

R. Turcotte X X S. Kenrick X X X(note 2)

B. Bouton X X X(note 2)

X(note 3)

E. Antosz Stevenson & Associates J. O'Sullivan X X X(note 2 )

2 W. Djordjevic X X X(note )

Notes:

1. Peer Review Team Leader

2. Provided peer review of a sample of other SWE team's SWCs & AWCs.

3. E. Antosz performed the walkdown of equipment in Containment with B. Bouton.

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3.3 EQUIPMENT SELECTION PERSONNEL The SWEL development was performed by a member of the Seabrook PRA Group. The SWEL was then independently reviewed by another member of the PRA Group, plant personnel from Operations, and finally by personnel from the Structural Engineering department at Seabrook.

3.4 SEISMIC WALKDOWN ENGINEERS The seismic walkdown teams (SWT) consisted of four seismic walkdown engineers (SWEs),

two from Stevenson and Associates (S&A) and two from Seabrook Station. The SWTs were lead by senior consultants from S&A, with support from Seabrook's Structural Engineering Group. For the containment walkdown, the SWT consisted of qualified Seabrook staff members.

Other Seabrook professional staff participating in some of the walkdowns included those from Seabrook Operations as well as their PRA group.

The lead SWE on each walkdown team was an engineer from Stevenson and Associates (S&A). S&A is recognized internationally as leading seismic consultants to the nuclear industry and as regular contributors to the advancement of earthquake engineering knowledge through funded research projects. The professional staff has expertise and capabilities in earthquake engineering, structural dynamics, and structural design. Over the past 35 years S&A has performed seismic evaluations of US nuclear power plants using either Seismic Probabilistic Risk Assessment (SPRA) or Seismic Margin Assessment (SMA) to address US Nuclear Regulatory Commission (NRC) requests for Individual Plant Evaluation for External Events (IPEEE).

3.5 LICENSING BASIS REVIEWERS The Licensing Basis Reviewers for Seabrook consisted of the four seismic walkdown engineers:

two from Seabrook and two from S&A. The Seabrook engineers had the lead in licensing basis determinations, with support from the S&A engineers.

3.6 IPEEE REVIEWERS The IPEEE Reviewers for Seabrook consisted of two PRA engineers, who also participated in the SWEL preparation and seismic walkdowns.

3.7 PEER REVIEW TEAM The Peer Review Team is listed, along with their roles and qualifications, in the Peer Review Report, included in Appendix F.

3.8 ADDITIONAL PERSONNEL In addition to the team roles listed above, one Senior Reactor Operator (SRO), participated in the SWEL review and walkdown review as the Operations representative. The SRO from Seabrook Station who participated has numerous years of experience in various aspects of plant operations and operations training.

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Various other Operations personnel also provided support to the walkdown by reviewing the list of components for accessibility and accompanying the SWTs to open cabinet doors for accessibility to anchorage.

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4 Selection of SSCs The Seismic Walkdown Equipment List is documented in the SWEL Selection Report, provided in Appendix B. This report describes how the SWEL was developed to meet the requirements of EPRI Seismic Walkdown Guidance (Reference 1). The final SWEL (both SWEL 01 & SWEL 02), as well as the Master Component List, are included in the SWEL Selection Report in Appendix B.

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5 Seismic Walkdowns and Area Walk-Bys 5.1 OVERVIEW The Seabrook Seismic Walkdowns and Area Walk-Bys were conducted by two 2-person teams of trained Seismic Walkdown Engineers, in accordance with the EPRI Seismic Walkdown Guidance (Reference 1). The majority of the walkdowns occurred on August 29 - 31, 2012. An additional walkdown was performed by one 2-person team on September 14, 2012 to perform internal inspections for other adverse seismic conditions of selected electrical equipment cabinets that were not completely inspected or were not opened at all during the initial inspections. Components in the Containment building were inspected on September 20, 2012, when radiological conditions permitted during the plant's refueling outage. The Seismic Walkdowns and Area Walk-Bys are discussed in more detail in the following sections.

5.2 SEISMIC WALKDOWNS The Seismic Walkdowns focused on the seismic adequacy of the items on the SWEL as provided in Appendix B of this report. The Seismic Walkdowns also evaluated the potential for nearby SSCs to cause adverse seismic interactions with the SWEL items.

The Seismic Walkdowns focused on the following adverse seismic conditions associated with the subject item of equipment:

• Adverse anchorage conditions

• Adverse seismic spatial interactions

• Other adverse seismic conditions The results of the Seismic Walkdowns have been documented on the Seismic Walkdown Checklist (SWC) provided in the EPRI guidance document, Appendix C.

Seismic Walkdowns were performed and a SWC completed for 99 of the 102 items identified on the Seabrook (SBK) SWEL. The completed SWCs are provided in Appendix C of this report. Drawings and other plant records are cited in some of the SWCs, but are not included with the SWCs because they are readily retrievable documents through the station's document management system.

Seismic Walkdowns are deferred for the remaining 3 items until safe access conditions can be provided. These items could not be walked down during the 180-day period following the issuance of the 10CFR50.54(f) letter due to their being inaccessible because they were energized and required for safe plant operation. Appendix E of this report identifies the inaccessible equipment along with the plan for future Seismic Walkdowns.

The following subsections describe the approach followed by the SWEs to identify potentially adverse anchorage conditions, adverse seismic interactions, and other 8

adverse seismic conditions during the Seismic Walkdowns.

5.2.1 Adverse Anchorage Conditions Guidance for identifying an anchorage that could be degraded, non-conforming, or unanalyzed relied on visual inspections of the anchorage and verification of anchorage configuration. Details for these two types of evaluations are provided in the following two subsections.

The evaluation of potentially adverse anchorage conditions described in this subsection applies to the anchorage connections that attach the identified item of equipment to the civil structure on which it is mounted. For example, the welded connections that secure the base of a Motor Control Center (MCC) to the steel embedment in the concrete floor would be evaluated in this subsection. Evaluation of the connections that secure components within the MCC is covered later in the subsection "Other Adverse Seismic Conditions."

Visual Inspections The purpose of the visual inspections was to identify whether any of the following potentially adverse anchorage conditions were present:

• Bent, broken, missing, or loose hardware

• Corrosion that is more than mild surface oxidation

• Visible cracks in the concrete near the anchors

• Other potentially adverse seismic conditions Based on the results of the visual inspection, the SWEs judged whether the anchorage was potentially degraded, non-conforming, or unanalyzed. The results of the visual inspection, including any significant comments, were documented on the SWCs, as appropriate. If there was clearly no evidence of degraded, nonconforming, or unanalyzed conditions, then it was indicated on the checklist and a licensing basis evaluation was not necessary. However, if it was not possible to judge whether the anchorage is degraded, nonconforming, or unanalyzed, then the condition was entered into the Corrective Action Program as a potentially adverse seismic condition.

5.2.2 Anchorage ConfigurationConfirmation As required by the EPRI Seismic Walkdown Guidance (Reference 1, page 4-3), at least 50% of the items were confirmed to be anchored consistent with design drawings. Line-mounted equipment (e.g., valves mounted in pipelines without separate anchorage) was not evaluated for anchorage adequacy and therefore not counted in establishing the 50%,sample size.

Examples of documentation that were considered to verify that the anchorage installation configurations are consistent with the plant documentation include the following:

" Design drawings

• Seismic qualification reports of analyses or shake table tests 9

The table of contents for Appendix C indicates the anchorage verification status for components as follows:

N/A: components that are line-mounted and/or are not anchored to the civil structure and therefore do not count in the anchorage confirmation total.

Y: components that are anchored to the civil structure which were confirmed to be consistent with design drawings and/or other plant documentation N: components which had anchorage but were not chosen for anchorage configuration confirmations.

See Table 5-1 below for the accounting of the 50% anchorage configuration confirmations, and the individual SWC forms in Appendix C for the specific drawings used in each confirmation.

Table 5-1. Anchorage Configuration Confirmation Total SWEL SWEL Items Minimum Total Items Items without Required to Confirmed Anchorage (NIA) Confirm A B (A-B)/2 102 42 30 39 5.2,3 Adverse Seismic SpatialInteractions An adverse seismic spatial interaction is the physical interaction between the SWEL item and a nearby SSC caused by relative motion between the two during an earthquake. An inspection was performed in the area adjacent to and surrounding the SWEL item to identify any seismic interaction conditions that could adversely affect the capability of that SWEL item to perform its intended safety-related functions.

The three types of seismic spatial interaction effects that were considered are:

• Proximity

• Failure and falling of SSCs (Seismic II over I)

" Flexibility of attached lines and cables Detailed guidance for evaluating each of these types of seismic spatial interactions is described in the EPRI guidance document, Appendix D: Seismic Spatial Interaction.

The Seismic Walkdown Engineers exercised their judgment to identify seismic interaction hazards. Section 5.2.5 provides a summary of issues identified during the Seismic Walkdowns.

5.2.4 Other Adverse Seismic Conditions In addition to adverse anchorage conditions and adverse seismic interactions described above, other potentially adverse seismic conditions that could challenge the seismic adequacy of a SWEL item were evaluated. Examples of the types of conditions that could pose potentially adverse seismic conditions include the following:

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" Degraded conditions

" Loose or missing fasteners that secure internal or external components to equipment

• Large, heavy components mounted on a cabinet that are not typically included by the original equipment manufacturer

" Cabinet doors or panels that are not latched or fastened Any identified other adverse seismic conditions are documented on the items' SWC and Table 5-2, as applicable.

5.2.5 Issues Identification during Seismic Walkdowns Table 5-2 provides a summary of issues identified during the equipment Seismic Walkdowns. The equipment Seismic Walkdowns resulted in a total of two (2) actions identified and each of these was entered into the station's CAP. All of the identified concerns were assessed and it was concluded that the condition would not prevent the associated equipment from performing its safety-related function(s). None of the conditions identified by the SWEs during the equipment Seismic Walkdowns were concluded to be adverse seismic conditions.

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5-2: Table of Actions Resulting from Seismic Walkdown Inspection Equipment ID Potentially Adverse Seismic Resolution Entered Current Status Condition into CAP?

1-CC-E-17-B Corrosion exists on supports This condition was evaluated and YES CLOSED PCC Heat (base plates) for both PCCW determined to be a housekeeping AR documents followup action to Exchanger heat exchangers issue as the corrosion does not clean and re-coat supports to halt impact the structural integrity of corrosion damage the supports. This is not a degraded condition.

1-MM-CP-108B Not bolted to adjacent cabinet This configuration is judged to be YES CLOSED Remote Safe MCC-631 sufficient for design basis Shutdown Panel This configuration needs to be earthquake, based on the Mark evaluated further to assure that Technologies evaluation.

relay tripping / chattering would not be an issue.

1-EDE-US-64 Hoist located on rail on top of There is a shackle that restrains N/A CLOSED 480V Bus E64 bus can roll and cause impacts. the hoist such that there would be This configuration needs to be no impact energy as a evaluated further to assure that consequence of minimal relay tripping / chattering would movement and therefore no not be an issue. adverse seismic interaction.

1-EDE-X-5H Several anchorage welds are The walkdown team determined N/A CLOSED 4kV to 480V 3.75" long as opposed to 4" that the few welds that were Transformer X-5H lengths prescribed in plant marginally less than the 4" (E6 to E64) design drawings. required length were acceptable to assure cabinet anchorage for the design basis earthquake based upon the low seismic demand at the Cooling Tower 22' elevation.

1-CC-P-11-D Adjacent chain-fall inadequately Chain-fall secured (tied-off) YES CLOSED PCCW Pump secured and could strike lube immediately oil reservoir on pump.

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5.3 AREA WALK-BYS The purpose of the Area Walk-Bys is to identify potentially adverse seismic conditions associated with other SSCs located in the vicinity of the SWEL items. Vicinity is generally defined as the room containing the SWEL item. If the room is very large (e.g.,

Turbine Hall), then the vicinity is identified based on judgment, e.g., on the order of about 35 feet from the SWEL item. This vicinity is described on the Area Walk-By Checklist (AWC), shown in Appendix D of this report. A total of 28 AWCs were completed for SBK. It is noted that additional AWCs will be completed, as required, as deferred and supplemental inspections are completed.

The key examination factors that were considered during Area Walk-Bys include the following:

• Anchorage conditions (if visible without opening equipment)

• Significantly degraded equipment in the area

• A visual assessment (from the floor) of cable/conduit raceways and HVAC ducting (e.g., condition of supports or fill conditions of cable trays)

• Potentially adverse seismic interactions including those that could cause flooding, spray, and fires in the area

• Other housekeeping items that could cause adverse seismic interaction (including temporary installations and equipment storage)

• Scaffold construction was inspected to meet the station administrative procedure for the control of scaffolding. Seismic housekeeping was examined to meet the station procedure for the control of temporary equipment, temporary power, job setup and plant storage The Area Walk-Bys are intended to identify adverse seismic conditions that are readily identified by visual inspection, without necessarily stopping to open cabinets or taking an extended look. If a potentially adverse seismic condition was identified during the Area Walk-By, then additional time was taken, as necessary, to evaluate adequately whether there was an adverse condition and to document any findings.

The results of the Area Walk-Bys are documented on the AWCs included in Appendix D of this report. A separate AWC was completed for each area inspected. A single AWC was completed for areas where more than one SWEL item was located.

Additional details for evaluating the potential for adverse seismic interactions that could cause flooding, spray, or fire in the area are provided in the following two subsections.

Seismically-Induced Flooding/Spray Interactions Seismically-induced flooding/spray interactions are the effect of possible ruptures of vessels or piping systems that could spray, flood, or cascade water into the area where SWEL items are located. This type of seismic interaction was considered during the IPEEE program. Those prior evaluations were considered, as applicable, as information for the Area Walk-Bys.

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One area of particular concern to the industry is threaded fire protection piping with long unsupported spans. If adequate seismic supports are present or there are isolation valves near the tanks or charging sources, flooding may not be a concern. Numerous failures have been observed in past earthquakes resulting from sprinkler head impact.

Less frequent but commonly observed failures have occurred due to flexible headers and stiff branch pipes, non-ductile mechanical couplings, seismic anchor motion, and failed supports.

Examples where seismically-induced flooding/spray interactions could occur include the following:

• Fire protection piping with inadequate clearance around fusible-link sprinkler heads

• Non-ductile mechanical and threaded piping couplings can fail and lead to flooding or spray of equipment

• Long, unsupported spans of threaded fire protection piping

• Flexible headers with stiffly supported branch lines

• Non-Seismic Category I tanks The SWEs exercised their judgment to identify only those seismically-induced interactions that could lead to flooding or spray. Fire protection piping at Seabrook is laterally braced throughout the power block and no concerns associated with fire protection piping or spray of equipment were identified. Seabrook fire protection piping follows an installation specification developed by the architect/engineering organization for the installation of fire suppression systems which in turn follows NFPA standards for the seismic design.

Seismically-Induced Fire Interactions Seismically-induced fire interactions can occur when equipment or systems containing hazardous/flammable material fail or rupture. This type of seismic interaction was considered during the IPEEE program. Those prior evaluations were considered, as applicable, as information for the Area Walk-Bys.

Examples where seismically-induced fire interactions could occur include the following:

• Hazardous/flammable material stored in inadequately anchored drums, inadequately anchored shelves, or unlocked cabinets

• Natural gas lines and their attachment to equipment or buildings

" Bottles containing acetylene or similar flammable chemicals

• Hydrogen lines and bottles Another example where seismically-induced fire interaction could occur is when there is relative motion between a high voltage item of equipment (e.g., 4160 volt transformer) and an adjacent support structure when they have different foundations. This relative motion can cause high voltage busbars, which pass between the two, to short out against the grounded bus duct surrounding the busbars and cause a fire.

The Seismic Walkdown Engineers exercised their judgment to identify only those seismically-induced interactions that could lead to fires. No such interactions were found at Seabrook.

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5.3.1 Issue Identification during Area Walk-bys None of the anomalies or issues identified by the SWEs during the area walk-bys was ultimately judged to be "Potentially Adverse Seismic Conditions" because in all cases it was concluded that the anomaly or issue would not prevent the equipment from performing its safety-related function. Table 5-3 at the end of this section shows only one (1) issue identified in the Area Walk-bys.

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Table 5-3: Table of Actions Resulting from Area Walk-by Inspections Equipment ID Potentially Adverse Seismic Resolution Entered Current Status Condition Into CAP?

Walkdown / evaluation of pipe support determined that the functionality of support is PB412, PAB El. Corrosion on service water pipe maintained and no threat to operability exists 25 ft support #1821-RG-8, near valve based on the condition and structural YES CLOSED SW-V-74. integrity of the support. Support member is robust and the corrosion is on the surface only. This is not a degraded condition.

16

6 Licensing Basis Evaluations As noted in Sections 5.2 and 5.3, the issues identified during the Seismic Walkdowns and Area Walk-Bys were not determined to be "Potentially Adverse Seismic Conditions" because in all cases the anomaly or issue would not prevent the equipment from performing its safety-related function. Therefore, no formal Licensing Basis Evaluations were necessary and none were performed.

17

7 IPEEE Vulnerabilities Resolution Report The seismic assessment performed for the Seabrook IPEEE Report (Ref. 4) was reviewed and no seismic vulnerabilities were identified. No plant improvements were required as a result of the seismic portion of the IPEEE. (See page 2 of the NRC SER on IPEEE (Ref. 10).

18

8 Peer Review The PeerReview Report is included as Appendix F. This includes the peer review of the SWEL selection, peer review of the seismic walkdown, and peer review of this final report.

19

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

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

2. Seabrook Station Updated Final Safety Analysis Report (UFSAR),

Revision 13.

3. Seabrook Station letter from Ted C. Feigenbaum, North Atlantic Energy Service Corporation, to United States Nuclear Regulatory Commission, dated October 2, 1992,

Subject:

Transmittal of Individual Plant Examination of External Events Report for Seabrook Station, September 1992

4. Seismic Individual Plant Examination for External Events (IPEEE) SPRA, September 1992

5. 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," Enclosure 2.3, "Recommendation 2.3: Seismic," dated March 12, 2012.

6. Seabrook Station Administrative Procedure MA 4.8, Rev. 9, Control of Scaffolding.

7. Seabrook Station Administrative Procedure MA 4.10, Rev. 12, Control of Temporary Equipment, Temporary Power, Job Setup and Plant Storage.

8. Specification 9763-006070-1, Specification for Fixed Fire Suppression Systems, United Engineers & Constructors, Rev. 7, January 5, 1989.

.9. NFPA 13, Standard for the Installation of Sprinkler Systems, National Fire Protection Association.

10. NRC SER on Seabrook IPEEE, May 2001

11. USNRC Regulatory Guide 1.60

12. USNRC Regulatory Guide 1.61

13. USNRC Regulatory Guide 1.29

14. IEEE 344-1975 20

15. ACl 318-71

16. AISC 7 th Edition, 1971 21

22 A

Project Personnel Resumes and SWE Certificates A.1 INTRODUCTION R6sum6s for the following personnel that contributed to the seismic walkdown and/or peer review are included in this Appendix:

" NextEra Ener-gy, Seabrook Station: K. Kiper, T. Cassidy, R. Turcotte, B. Bouton, S.

Kenrick, E. Antosz

" Stevenson & Associates: W. Djordjevic, J. O'Sullivan In addition, certificates from the EPRI Walkdown Training Course are included for each of the designated SWEs: B. Bouton, S. Kenrick, E. Antosz, W. Djordjevic, and J.

O'Sullivan.

A.2 RESUMES & CERTIFICATIONS Kenneth Kiper Mr. Kiper is a Principal Engineer in the PRA Group at NextEra Energy Seabrook. He is the lead engineer for the Seabrook PRA, which includes seismic risk integrated into the PRA model. He has more than 30 years of nuclear experience, with most of that at Seabrook Station in the PRA group, maintaining, expanding and utilizing the PRA. He participated in the preparation of the IPEEE, including the seismic PRA portion. He is involved in industry groups, including the ASME/ANS Joint Committee on Nuclear Risk Management, responsible for writing and maintaining Standards related to PRA. Mr.

Kiper has master's degrees from Ohio State University in Physics and Nuclear Engineering.

T. Cassidy Mr. Cassidy is a Project Specialist in the Operations Group at NextEra Energy Seabrook and is the Site Lead for the Fukushima Response. He has 27 years of nuclear experience at Seabrook most of which is in Operations training. Mr. Cassidy has a degree in Marine Engineering from Maine Maritime Academy and held a senior reactor operator license at Seabrook from 1987 through 2001. Since 2001 he has maintained an SRO certification.

R. Turcotte Mr. Turcotte is a Principal Engineer in the PRA Group at NextEra Energy - Seabrook Station, LLC. In this position, he contributes to all aspects of plant risk management including PRA model development and maintenance, online and outage risk assessment, and PRA applications. Mr. Turcotte joined Seabrook Station in 2008 and has over 30 years engineering experience in the nuclear industry. Prior to joining A-1

NextEra, Mr. Turcotte was employed at AREVA-NP where he was manager of the Risk and Reliability Engineering Group responsible for the development of the PRA to support design certification of the EPR (evolutionary pressurized-water reactor) and for development of PRA business opportunities for the operating fleet. Prior to AREVA-NP, he worked at Yankee Atomic Electric Company and Duke Engineering as a senior nuclear engineer responsible for development of the initial IPE and IPEEE PRAs for Vermont Yankee. Mr. Turcotte has a Mechanical Engineering degree from Central New England College of Technology.

Ed Antosz Mr. Antosz is an Associate Engineer in the PRA Group at NextEra Energy Seabrook with two years of experience in the nuclear industry. He has completed the necessary requirements and qualifications for a Risk Management Engineer. This qualification included the completion of Seabrook Station's Applied Systems Course. Recently, he attended training on the Near Term Task Force Recommendation 2.3 - Plant Seismic Walkdowns (see certificate below). He holds a BS in Mechanical Engineering and is currently pursuing a Masters in Nuclear Engineering, both with the University of Pittsburgh.

Certificate of Completion Edward Antosz Training on Near Term Task Force Recommendation 2.3

- Plant Seismic Walkdowns J.,o~.212012 SRk -lýt.U Bruce Bouton Mr. Bouton is a Principal Engineer in the Mechanical Design Engineering Group at NextEra Energy Seabrook with 38 years of experience in seismic related structural design and IEEE-344 testing of components. Mr. Bouton participated in USI A-46 SQUG activities while working in the nuclear consulting industry. Recently he completed EPRI Seismic Walkdown Engineer (SWE) training (see certificate below). He holds a BSCE from the University of Massachusetts- Amherst.

A-2

Certificate of Completion Bruce Bouton Training on Near Term Task Force Recommendation 2.3

- Plant Seismic Walkdowns J-.21. 2012 , 0,12 Scott Kenrick, P.E.

Mr. Kenrick is a Principal Engineer in the Mechanical Design Engineering Group at NextEra Energy, Seabrook with 39 years of experience in seismic related structural design, analysis and IEEE-344 qualification of components. He worked for United Engineers and Constructors (UE&C) during Seabrook construction and participated in the original seismic design of the station structures and components. Mr. Kenrick recently completed EPRI Seismic Walkdown Engineer (SWE) training (see certificate below). He holds a BSME from Northeastern University Certificate of Completion Scott Kenrick Training on Near Term Task Force Recommendation 2.3

- Plant Seismic Walkdowns 1- 21.ý2012 A-3

Walter Djordjevic, P.E.

Mr. Djordjevic is a Senior Consultant and serves as President of S&A with specialization in the dynamic analysis and design of structures and equipment for seismic, blast, fluid, and wind loads. He has managed and led seismic walkdowns and fragility analyses of structures and components for use in probabilistic risk assessments. Mr. Djordjevic has 37 years of seismic experience serving the nuclear industry. Mr. Djordjevic performed and managed more than 20 USI A-46 and IPEEE projects in response to the requirements of Generic Letters 87-02 and 88-20. Mr. Djordjevic has a Master of Science in Structural Engineering from the Massachusetts Institute of Technology. He has received industry training as Seismic Capability Engineer (EPRI SQUG training),

EPRI IPEEE Add-on, Seismic Fragility and Seismic Walkdown Engineer (SWE) training (see certificate below).

Certificate of Completion Walter Djordjevic Successfall* Completed Training on Near Term Task Force Recommendation 2.3 - Plant Seismic Walkdowns (i.. AM/

) Date: 06126112 BruceM.to*'-Instructor NTrF2.3Seisec WalkdownCourse

, K LA A-4

John O'Sullivan, P.E.,

Mr. O'Sullivan is a Senior Consultant in the S&A Boston office. He has managed and led seismic walkdowns and fragility analyses of structures and components for use in probabilistic risk assessments. Mr. O'Sullivan has 25 years of seismic experience serving the nuclear industry. Mr. O'Sullivan has participated in more than 10 USI A-46 and IPEEE projects in response to the requirements of Generic Letters 87-02 and 88-20.

Mr. O'Sullivan has a Master of Science in Structural Engineering from the Massachusetts Institute of Technology. He has received industry training as Seismic Capability Engineer (EPRI 5-day SQUG training), EPRI IPEEE Add-on, and Seismic Fragility training.

Certficateof.Achievement ToCntfbyft JonOS ulliva has CompfetedtheSQVG Wa lkdownScreening andSeinmic EvaluationTraining Course

__ Hfelfdugust 10-15,1992 ,

I ** !............ . ...... .* * ..

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B SWEL Selection Report Selection of the Seabrook Station Seismic Walkdown Equipment List (SWEL) for the Requirement 2.3 Walkdown Seabrook Station November 2012 Prepared by - A" Ken Kiper (SWEL Selection Lead) Date Reviewed by Rich Turcotte (PRA roupF- Date Reviewed by Oat Reviewed by rce'e6u on (E-ngineering) Date

I Introduction This document summarizes the process for selecting the components to be included in the seismic walkdown equipment list (SWEL) for Seabrook Station. This process is consistent with guidance in EPRI-TR-1025286(REF 1)and meets the intent of NRC NTTF Requirement 2.3.

The SWEL walkdown locations are summarized in Table 1, along with walk-by attributes. The final Seabrook SWEL is included in Attachment A. Components were generally chosen from Train B since Train A was the protected train during the planned walkdown period.

The SWEL list was revised during the seismic walkdowns in August & September 2012 based on accessibility of anchorage. See Section 4 for details.

2 Process The general process focuses first on building a Master Component List, with attributes to support the sample selection process (Section 3). Then a sample of Seismic Category 1 (SC1) components is made for the SWEL to assure the five safety functions are represented along with a variety of systems, environments, and component types.

The process also includes identifying a set of plant locations around which the walkdown is organized (Section 4). The plant locations are also used to support the "walk-by" process to assess cable trays and ventilation ducts and the potential for seismic spatial interactions (Section 5).

Finally, Section 6 identifies several evaluations that support the identification of targets for the walkdown and the specific attributes that need to be examined.

Because the SWEL needs to address a number of attributes, the selection was performed and reviewed by a team that includes representatives from PRA, Operations, and Engineering. This was done systematically by performing table-top virtual walkdowns and pre-walkdowns of each location to identify candidates for the SWEL as well as other issues (e.g., seismic-flood) that need to be inspected by the walk-by.

3 Master Component List The SWEL was developed starting from the components list in the Seabrook internal events pRA(REF 2 ) (SWEL 1). This list contains risk important components from the internal events PRA, one of the attributes from the EPRI guidance. Other components were added that are implicitly modeled in the PRA (e.g., instrument racks).

This list includes components related to the five safety functions - reactivity control, RCS pressure control, RCS inventory control, decay heat removal, containment function - implicitly by including components from both core-damage-frequency (CDF) and large-early-release-frequency (LERF) sequences. The five safety functions are addressed further in Section 4.1 (Screen #3).

This list was expanded to include components associated with the Spent Fuel Pool (SWEL 2).

The guidance described these as "SFP SCl equipment and systems" and includes specifically components associated with SFP cooling. Per the guidance, the SF pool structure is excluded from the walkdown. Thus, this added all SFP-related components that are Seismic Cat 1, B-2

including pumps, valves, heat exchangers, ventilation fans, etc. In addition, the potential for rapid draindown of the SFP was evaluated (see Section 4.2, Screen #4). The conclusion of that evaluation was that there are no components that could lead to rapid draindown. Thus, the list did not need to be expanded.

Specific attributes were identified for each component to support the sample selection, as described below:

• Seismic Class. Each component in the master list was identified as SC1 or non-SC1.

The SWEL generally applies only to SCI since this is primarily a design-basis evaluation.

• System. For each component in the master list, the associated system was identified.

This attribute is used to assure that the equipment selection includes a variety of types of systems.

" Location. For each component in the master list, the location (room ID) was identified.

The walkdowns are organized by plant location (see Section 4). This also assures that the equipment selection includes a variety of environments.

• Equipment Class. For each component in the master list, the "equipment class" was identified. The equipment classes are the 21 types of equipment identified in Appendix B of the EPRI guidance document (see Table 2). This attribute is used to assure that the equipment selection includes a variety of types of equipment.

e New/Replacement Equipment. Only one of the components in the master list was identified as major new or replacement equipment in the last 15 years - the control panel DG-CP-907-B (DG-B temperature control) in the DG Bldg. Some of the equipment has been replaced (e.g., PCCW motors), but with like-kind equipment.

" Equipment Enhancedfrom IPEEE. As described in Section 6.1, no plant improvements were made as a result of the seismic portion of the IPEEE assessment.

The Master Component List is included in Attachment B (referred to as Base List 1 & Base List 2 in Section 8 of the EPRI guidance).

4 Walkdown List (SWEL)

The SWEL was created by sampling from the Master Component List, using the attributes identified in Section 3. The final SWEL is contained in Attachment A.

First, plant locations are defined to support the walkdown. A list of 11 locations (buildings or sets of rooms) were identified that contain the primary components from most of the top ten risk-important systems, as well as the Fuel Storage Bldg. Table 1 provides this list of walkdown locations. This focuses the walkdown on risk-important systems, consistent with the guidance to

"... include consideration of the importance of the contribution to risk for the SSCs."

Within these 11 locations, a total of 102 components was identified from the Master Component List (98 in SWEL 1 and 4 in SWEL 2). As shown in Attachment A, this process assured that a variety of systems, environments and equipment classes are represented. This sample was also reviewed by Operations and Engineering to assure these components were accessible and that the anchorage was visible.

B-3

The SWEL list was revised during the seismic walkdowns in August & September 2012 based on accessibility of anchorage. The following modifications were made:

• 4 deletions The fans on the Cooling Tower roof (1-SW-FN-51-B & 2-SW-FN-51-B) were examined, but only half of the bolts could be observed. Similarly, the ventilation fan (EAH-FN-31-B) and air conditioner (EAH-AC-2-B) in the Containment Enclosure Ventilation Area were examined but anchorage could not be fully observed.

• 3 substitutions Power panel EDE-PP-1 12-B was included in place of EDE-PP-1 1 -B, since PP-111-B anchorage could not be observed. Pump CS-P-3-A was included in place of CS-P B, since the access to P-3-B was more difficult. Inside containment, AOV CC-V-1 76 was included in place of COP-V-2 due to accessibility.

• 1 addition Control panel DG-CP-907-B (DG-B temperature control) was added as a new component of the last few years.

The final count of SWEL components was 102.

4.1 Screening for SWEL I The screening process for SWEL 1 meets the requirements of the EPRI-TR as described below:

• Screen #1 Seismic Category 1 Non-seismic-category 1 components are screened out of the Master Component List.

This screening was performed using the "Safety-Related" attribute in Master Component List, since Safety Related components are also Seismic Category 1. This was verified using UFSAR Table 3.2-2 "Design of Structures, Components, Equipment, and Systems."

• Screen #2 Equipment or Systems Components selected for the SWEL 1 were those that do not undergo regular inspection to confirm their configuration. Thus, SCI structures, containment penetrations, and SC1 piping systems were excluded. As a result, the SWEL includes mechanical and electrical equipment plus tanks and heat exchangers (as demonstrated in Screen #4, "equipment type" below).

• Screen #3 Supports Five Safety Functions The SWEL includes components from all five safety functions, as follows:

1. Reactivity Control

" Emergency Boration (Boric acid pump, tanks);

" Support systems (AC power, DC power).

2. RCS PressureControl

• Secondary pressure control (ASDV, MSIV)

3. RCS Inventory Control e ECCS (SI pump, RH pump, MOVs, RWST)

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• Support systems (AC power, DC power, EAH ventilation, CC pumps & MOVs).

4. Decay Heat Removal e Secondary heat removal (EFW pump, EFW MOVs, CST, ASDV);

• RHR shutdown cooling (RHR pump & MOVs, CC pumps & MOVs, SW pumps &

MOVs, heat exchangers,);

e Support systems (AC power, DC power, EFPH ventilation, EAH ventilation, SWA ventilation).

5. ContainmentFunction

• Containment isolation (CC valve, MSD valves)

• Containment spray injection (CBS pump, RWST)

• Containment spray heat removal (CBS pump, CBS heat exchanger, CC pumps &

MOVs, SW pump & MOVs)

• Support systems (EAH ventilation, CC pumps & MOVs, AC power, DC power).

• Screen #4 Sample Considerations The SWEL includes components from various systems, environments, and types:

" System. The SWEL includes components from a number of types of systems - power support systems (EDE, DG), cooling support systems (SW, CC), ventilation systems (DAH, SWA, EAH), hot shutdown systems (EFW, CO), ECCS (RH, SI), containment spray (CBS), and spent fuel cooling (SF).

" Environment.The SWEL includes components from a number of locations in most of the major SCi buildings on site - PAB, Control Bldg, DG Bldg, EFW pumphouse, Cooling Tower, Containment. These locations involve different environments, from ventilation controlled areas (DG Bldg) to outside areas (CST, Cooling Tower roof);

from areas with normally running equipment (PAB) to areas with normally standby equipment (Cooling Tower). These locations involve different environments related to elevation, from (-)61' elevation in the RHR equipment vault to (+)46' elevation in the Cooling Tower. pump room.

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The following table summarizes the count of components by location.

SWEL Count of Location Building Name Components SWEL-01 SW Cooling Tower 11 SWEL-02 DG Bldg Train B 17 SWEL-03 CB Essential SWGR Train B 12 SWEL-04 Emergency Feedwater Pumphouse 9 SWEL-05 MS/FW Pipe Chase (East) 7 SWEL-06 RHR Equipment Vault Train B 15 SWEL-07 Refueling Water Storage Tank 3 SWEL-08 PAB 25' Elevation 17 SWEL-09 Containment Enclosure Ventilation Area 2 SWEL-1 0 Containment 5 SWEL-1 1 Fuel Storage Bldg 4 TOTAL 102 Equipment Type. The SWEL includes components from most of the 21 equipment classes. Table 2 provides a list of the 21 equipment classes. The following table shows the SWEL count by equipment class. As noted below and in Table 2, only Class 10 (air handler), Class 11 (chiller), and Class 13 (motor generator) components were not represented on the SWEL.

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Equipment Class Count of Components (01) 480V MCC 3 (02) 125 VDC SWGR 1 (02) 480V unit sub 2 (03) 4 KV SWGR 1 (04) transformer 2 (05) motor-driven pump 11 (06) pump (vertical drive) 2 (07) AOV 13 (07) electro-hydraulic valve 1 (07) pneumatic damper 2 (08) MOV 26 (09) fan 5 (12) compressor 1 (14) power panel 2 (15) battery 1 (16) battery charger 1 (16) inverter 1 (17) diesel generator 1 (18) instrument rack 4 (19) temperature device 5 (20) control panel 6 (21) heat exchanger 5 (21) tank 6 Note: Air conditioner EAH-AC-2-B, representing equipment classes 10 and 11 (Air Handler and Chiller) was originally on the SWEL. However, during walkdown the EAH-AC unit was examined but the anchorage could not be completely verified. As a result, this component was removed from the walkdown scope.

4.2 Screening for SWEL 2 The screening process for SWEL 2 meets the requirements of the EPRI-TR as described below:

• Screen #1 Seismic Category I Non-seismic-category 1 components related to SFP cooling are screened out of the Master Component List. This screening was performed using the "Safety-Related" attribute in Master Component List, since Safety Related components are also Seismic Category 1. This was verified using UFSAR Table 3.2-2 "Design of Structures, Components, Equipment, and Systems."

• Screen #2 Equipment or Systems Components selected for the SWEL 2 were those that do not undergo regular inspection to confirm their configuration. Thus, SC1 structures including the SF Pool and SC1 B-7

piping systems were excluded. As a result, the SWEL includes mechanical and electrical equipment plus heat exchangers (as demonstrated in Screen #3, "equipment type" below).

• Screen #3 Sample Considerations The SWEL 2 includes components from a variety of systems, environments, and types:

o System. The systems in SWEL 2 include SF (spent fuel) system, FAH (Fuel Storage Bldg ventilation), and CC (cooling to SF heat exchangers).

" Environment. The SWEL 2 includes components are all located in the Fuel Storage Bldg, involve different environments related to elevation, from (+)7' elevation in the SF pump area to +64' in the ventilation area.

• Equipment Type. The SWEL 2 includes components from four of the 21 equipment classes.

• Screen #4 Rapid Draindown The EPRI guidance requires assessment of the potential for SFP rapid draindown, specifically the identification of SFP penetrations below about 10 feet above the top of the fuel assemblies. The only penetration in the SFP below this level is the fuel transfer tube, used to move fuel from containment to the SFP. During normal operation, this tube is isolated by a blind flange on the containment side and a manual valve on the Fuel Storage Bldg side. The blind flange is a passive structural member that is judged to be out of scope for this evaluation. Thus, there are no SFP penetrations that could fail from a seismic event and lead to rapid draindown.

The EPRI guidance includes "determine how pool sloshing would reduce the initial volume of water in the SFP during a seismic event." This is required only if components related to rapid draindown were identified that could not be inspected.

5 Walk-By Table Each location will also be subject to a walk-by, an examination (in less detail) of the other PRA components as well as an inspection for other seismic issues:

- Several other passive component types: cable trays & ventilation ducts.

- Seismic-induced fire. This includes all flammable materials in each location, such as hydrogen lines, gas bottles (acetylene, hydrogen), natural gas lines, and hazardous/flammable material stored in the location.

- Seismic-induced flood. This includes all flood/spray sources (tanks, piping) originating in each location, based on the Internal Flood PRA. Note, the flood sources of interest are only those originating in the location, not those coming from another location. The potential for flood propagation will be addressed in the seismic/flood analysis.

- Spatial interactions (2 / 1). This includes adverse physical interaction due to proximity, failing of other components or structures (e.g., cranes), and flexibility of attached lines and cables.

Table 1 provides an initial assessment for each location to assist the walk-by process.

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6 Evaluations The following evaluations were performed prior to the walkdown to assess specific issues that may add to the walkdown scope or the inspection criteria.

6.1 IPEEE Vulnerabilities The seismic assessment performed for the Seabrook IPEEE Report(REF 3) was be reviewed for any seismic vulnerabilities identified. Several plant improvements were made in response to fire analysis and external flood and high winds analysis in the IPEEE. However, no plant improvements were made as a result of the seismic portion of the IPEEE. (See NRC SER on IPEEE(REF 4), page 2).

6.2 Configuration Verification The EPRI guidance identifies two types of inspection for the walkdown: (a) visual inspection and (b) configuration verification. Visual inspection is typically what is performed in a walkdown, looking for obvious degraded conditions in equipment anchorage. However, configuration verification is a more involved inspection consistent with the existing plant documentation of the design basis. This is required in at least 50% of the SWEL items with anchorage. Since 42 SWEL components are MOVs (Class 8) or AOVs (or similar Class 7 components) which do not have anchorage, this leaves 50% of (102 -42), or at least 30 components to be included in the configuration verification. This resulted in a total of 39 components that are identified in Attachment A. For those components, the design basis was reviewed and the key attributes included in the walkdown forms to assist the inspection.

6.3 New Equipment The EPRI Guidance directs that the SWEL should include a "robust sampling of the major new or replacement equipment installed within the past 15 years (i.e., since the approximate completion of the seismic IPEEE evaluation)". Based on discussion with Operations and Engineering, only one new or replacement equipment was identified in the 11 walkdown locations - the control panel DG-CP-907-B (DG-B temperature control) in the DG Bldg.

7 References (1) EPRI TR-1 025286, "Seismic Walkdown Guidance," June 2012.

(2) Seabrook PRA, SSPSS-201 1, June 2011.

(3) IPEEE Report for Seabrook Station, Sept 1992.

(4) NRC SER on Seabrook IPEEE, May 2001.

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TABLE 1: SWEL WALKDOWN LOCATIONS Room Elev. WKDN Cable Vent Fire Source Flood Source SWEL Building IDs (ft) Eaup(a) Trays Duct (b) (c) 2 I 1 Items SWEL- SW Cooling CT101 22 x MCC-641 01 Tower CT202 46 x SW DG102 -16 x FO FP SWEL- DG Bldg DG202 21 x x X FO, MCC-611 FO FP, DGJW DW, HW, hoist CR-28B 02 Train B DG305 51 x DG308 51 x x x CH Bus E6, SWEL- CB SWGR Essentinl Train CB105 21 X x x multiple MCCs PW 03 B CB106 21 x x SWEL-04 EFW P EF301 27 x X FP, CO, HW hoist CR-27 04 Pumphouse MF206 3 x x FW, MS SWEL- MSeFW Pipe MF304 12 x x FW, MS 05 Chase (East) MF403 27 x x FW, MS hoist RV102 -61 x RWST, CC, DW RV104 -61 x RWST, CC, DW SWEL- RHR RV202 -50 x RWST, CC, DW 06 Vault Train B RV302 -31 x RWST, CC, DW RV304 -31 x RWST, CC, DW RVST2 20 x X FP SWEL- RWST TF201 20 X RWST, SAT, AS 07 PB401 25 x x SW, CC hoist BUS-12, 25 FP, SW, CC, SB, hoist CR-5, SWEL- PAB 25' PB404 25 x x MCC-122, DGJW, DW CR-15A, CR-08 Elevation 252 15B, CR-41 PB411 25 x WG(H2) BA, RM hoist PB412 25 x FP, SW, DGJW hoist SWEL- CEVA EV101 21 X X CC, DW hoist CR-44, 09 CR-55 SWEL- Containment C1205 -26 x x 10 C1301 0 x FB107 7 xxxRMDHWA FP, SFP, CC, SWEL- Fuel Storage RM, DW, -W, AS 11 Bldg FB202 21 xx x x MCC-123 FW, HW, AS xx _ DW, HW, AS FB301 64 NOTES:

(a) WKDN Equp: components on the walkdown list for SWEL 1 (x) & SWEL 2 (xx).

(b) Fire Sources: flammable material, high voltage cabinets, WG (waste gas - hydrogenated)

(c) Flood Sources:

AS Auxiliary Steam DW Demin. Water RM Reactor Makeup Water BA Boric Acid FO Fuel Oil RWST RWST Water CC PCCW FP Fire Protection SAT SAT Water CH Chilled Water FW Feedwater SB SG Blowdown CO Condensate HW Hot Water Heating SF Spent Fuel Pool Cooling CW Circulating Water MS Main Steam SW Service Water DG JW DG Jacket Cooling Water PW Potable Water

ATTACHMENT A: MASTER EQUIPMENT LIST (BASE LIST 1 & BASE LIST 2)

Master equipment list (446 components)

Tag ID Component Description SWEL?

I-CBS-E-16-A CBS HX CBS-E-16A no 1-CBS-E-16-B CBS HX CBS-E-16B YES 1-CBS-P-9-A CBS PUMP CBS-P-9A no 1-CBS-P-9-B CBS PUMP CBS-P-9B YES 1-CBS-TK-8 RWST TANK CBS-TK-8 YES i-CBS-V-11 CBS Pump P-9A Discharge MOV CBS-V-11 no 1-CBS-V-14 RHR Train B Suction from CRS MOV CBS-V-14 no 1-CBS-V-17 CBS Pump P-9B Discharge MOV CBS-V-17 no I-CBS-V-2 RWST Train A Isolation MOV CBS-V-2 no l-CBS-V-47 SI Pump P-6A Suction MOV CBS-V-47 no I-CBS-V-49 SI Pump P-6A Suction MOV CBS-V-49 no i-CBS-V-5 RWST Train B Isolation MOV CBS-V-5 YES 1-CBS-V-51 SI Pump P-6B Suction MOV CBS-V-51 YES 1-CBS-V-53 SI Pump P-6B Suction MOV CBS-V-53 no i-CBS-V-8 RHR Train A Suction from CRS MOV CBS-V-8 no I-CC-E-153-A Thermal Barrier HX Train A no 1-CC-E-153-B Thermal Barrier HX Train B no I-CC-E-17-A TRAIN A HX E-17A no I-CC-E-17-B TRAIN B HX E-17B YES i-CC-P-11-A PCC PUMP CC-P-11A no i-CC-P-i1-B PCC PUMP CC-P-11B YES 1-CC-P-11-C PCC PUMP CC-P-11C no 1-CC-P-i1-D PCC PUMP CC-P-11D YES 1-CC-P-322-A Thermal Barrier Train A PUMP P322A YES I-CC-P-322-B Thermal Barrier Train B PUMP P322B no 1-CC-TE-2171 PCC Train A Temperature ELEMENT CC-TE-2171 no I-CC-TE-2197 PCC Train A Temperature ELEMENT CC-TE-2197 no 1-CC-TE-2271 PCC Train B Temperature ELEMENT CC-TE-2271 YES I-CC-TE-2297 PCC Train B Temperature ELEMENT CC-TE-2297 YES 1-CC-TK-19-B PCC Train B HEAD TANK CC-TK-19B no l-CC-TV-2171-1 PCC Train A HX TV-2171-1 no I-CC-TV-2171-2 PCC Train A HX TV-2171-2 no 1-CC-TV-2271-1 PCC Train B HX TV-2271-1 YES I-CC-TV-2271-2 PCC Train B HX TV-2271-2 YES 1-CC-V-1092 Thermal Barrier PCC "B" Supply Isolation MOV V1092 no I-CC-V-i095 Thermal Barrier PCC "B" Return Isolation MOV V1095 no I-CC-V-11O1 Thermal Barrier PCC "A" Supply Isolation MOV V1101 no I-CC-V-121 Containment Return Isolation AOV (inside) CC-V-121 no 1-CC-V-122 Containment Return Isolation AOV (outside) CC-V-122 no 1-CC-V-137 PCC to CBS HX E-16A Isolation MOV CC-V-137 no I-CC-V-145 PCC MOV CC-V-145 no I-CC-V-168 Containment Supply Isolation AOV (outside) CC-V-168 no I-CC-V-175 Containment Supply Isolation AOV (outside) CC-V-175 no 1-CC-V-176 Containment Supply Isolation AOV (inside) CC-V-176 YES I-CC-V-256 Containment Return Isolation AOV (inside) CC-V-256 no 1-CC-V-257 Containment Return Isolation AOV (outside) CC-V-257 no I-CC-V-266 PCC to CBS HX E-16B Isolation MOV CC-V-266 YES I-CC-V-272 PCC MOV CC-V-272 YES 1-CC-V-32 Spent Fuel Pool HX Isolation AOV CC-V-32 no I-CC-V-341 LTDN HX Isolation AOV CC-V-341 no B-11

Tag ID Component Description SWEL?

1-CC-V-395 RC-P-1B Thermal Barrier Loop Isolation MOV V395 no 1-CC-V-426 WPB Supply Isolation AOV CC-V-426 no 1-CC-V-427 WPB Return Isolation AOV CC-V-427 no 1-CC-V-428 RC-P-1A Thermal Barrier Loop Isolation MOV V428 no l-CC-V-438 RC-P-1C Thermal Barrier Loop Isolation MOV V438 no 1-CC-V-439 RC-P-1D Thermal Barrier Loop Isolation MOV V439 no l-CC-V-445 Spent Fuel Pool HX Isolation AOV CC-V-445 YES 1-CC-V-447 WPB Supply Isolation AOV CC-V-447 no l-CC-V-448 WPB Return Isolation AOV CC-V-448 no 1-CC-V-57 Containment Supply Isolation AOV (inside) CC-V-57 no 1-COP-V-1 COP Vi no 1-COP-V-2 COP V2 no 1-COP-V-3 COP V3 no 1-COP-V-4 COP V4 no 1-CO-TK-25 Condensate Storage TANK CO-TK-25 no 1-CP-CP-111 REACTOR TRIP SWITCHGEAR CAB no 1-CP-CP-112 ROD DRIVE POWER SUPPLY CABINET no 1-CP-CP-113-A ROD CONTROL POWER CAB 1AC no 1-CP-CP-113-E ROD CONTROL POWER CAB SCDE no 1-CP-CP-276 ROD CONTROL LOGIC CAB no 1-CP-MG-1-A ROD DRIVE M-G SET A no 1-CP-MG-1-B ROD DRIVE M-G SET B no 1-CS-CP-384 B.A. BATCHING TANK PANEL no 1-CS-FCV-121 CS Pumps Common Seal Discharge AOV FCV121 no 1-CS-LCV-112-B VCT Isolation MOV CS-LCV-112B no 1-CS-LCV-112-C VCT Isolation MOV CS-LCV-112C no 1-CS-LCV-112-D CS A Pump Suction MOV CS-LCV-112D YES 1-CS-LCV-112-E CS B Pump Suction MOV CS-LCV-112E YES 1-CS-P-128 PDP CS PUMP no 1-CS-P-2-A CS PUMP CS-P-2A no 1-CS-P-2-B CS PUMP CS-P-2B no 1-CS-P-3-A Boric Acid Tank PUMP CS-P-3A YES 1-CS-P-3-B Boric Acid Tank PUMP CS-P-3B no 1-CS-TK-4-A Boric Acid Tank 4A YES 1-CS-TK-4-B Boric Acid Tank 4B YES 1-CS-TV-130 Letdown HX Outlet AOV CS-TV-130 no 1-CS-V-bO RC-P-1A Seal Injection Leakoff AOV no 1-CS-V-154 RC-P-1D MOV (inbound/outside cont.) no 1-CS-V-158 RC-P-1C MOV (inbound/outside cont.) no 1-CS-V-162 RC-P-1B MOV Isolation VALVE (inbound/outside cont.) no 1-CS-V-166 MOTOR OPERATED Isolation VALVE MOV V166 no 1-CS-V-167 Penetration X-37 Isolation MOV CS-V-167 no 1-CS-V-168 Penetration X-37 Isolation MOV CS-V-168 no 1-CS-V-205 CS-V-205 PDP minimum flow no 1-CS-V-28 RC-P-1B Seal Injection Lea koff AOV no 1-CS-V-44 RC-P-1C Seal Injection Leakoff AOV no 1-CS-V-460 SI-CS Crosstie MOV CS-V-460 no 1-CS-V-461 SI-CS Crosstie MOV CS-V-461 no 1-CS-V-475 SI-CS Crosstie MOV CS-V-475 no 1-CS-V-59 RC-P-1D Seal Injection Leakoff AOV no 1-DAH-CP-293 CP FOR DAH-F-42 DAH-CS-5361 no 1-DAH-CP-294 CP FOR DAH-F-61 DAH-CS-5360 no 1-DAH-FN-25-A DG Supply FAN DAH-FN-25A no 1-DAH-FN-25-B DG Supply FAN DAH-FN-25B YES R-1 9

Tag ID Component Description SWEL?

1-DAH-FN-26-A DG Return FAN DAH-FN-26A no 1-DAH-FN-26-B DG Return FAN DAH-FN-26BB no 1-DG-C-2-A DG-1A Starting Air Compressor Skid no 1-DG-C-2-B DG-1B Starting Air Compressor Skid YES 1-DG-CP-36 DG-1A TERM BOX ELEC CONTROL PNL no 1-DG-CP-37 DG-1B TERM BOX ELEC CONTROL PNL YES 1-DG-CP-75-A DG-1A CONTROL PANEL A no 1-DG-CP-75-B DG-1A CONTROL PANEL B no 1-DG-CP-76-A DG-1B CONTROL PANEL A YES 1-DG-CP-76-B DG-1B CONTROL PANEL B no 1-DG-CP-77 DG-1A ENGINE GAUGE PANEL no 1-DG-CP-78 DG-1B ENGINE GAUGE PANEL no 1-DG-CP-79 EMERGENCY POWER SEQUENCER DGIA no 1-DG-CP-80 EMERGENCY POWER SEQUENCER DG1B YES 1-DG-CP-907-B DG-1B Temperature Control Panel YES 1-DG-DG-1-A DG-1A no 1-DG-DG-1-B DG-1B YES 1-DG-E-41-A DG Lube Oil Heat Exchanger 41-A no 1-DG-E-41-B DG Lube Oil Heat Exchanger 41-B YES 1-DG-E-42-A DG Heat Exchanger 42-A no 1-DG-E-42-B DG Heat Exchanger 42-B no 1-DG-P-115-A DG-1A Engine Driven LUBE OIL PUMP no 1-DG-P-115-B DG-1B Engine Driven LUBE OIL PUMP no 1-DG-P-117-A DG-1A Motor Driven Aux LUBE OIL PUMP no 1-DG-P-117-B DG-1B Motor Driven Aux LUBE OIL PUMP YES 1-DG-P-118-A DG-1A Motor Driven Aux FUEL OIL PUMP no 1-DG-P-118-B DG-1B Motor Driven Aux FUEL OIL PUMP YES 1-DG-P-119-A DG-1A Engine Driven FUEL OIL PUMP no 1-DG-P-119-B DG-1B Engine Driven FUEL OIL PUMP no 1-DG-P-121-A DG-P-121-A Engine Driven Jacket water cooling Pump no 1-DG-P-121-B DG-P-121-B Engine Driven Jacket water cooling Pump no 1-DG-P-123-A DG-P-123-A Engine Driven Intercooler Gen. Bearing cooling Pump no 1-DG-P-123-B DG-P-123-B Engine Driven Intercooler Gen. Bearing cooling Pump no 1-DG-P-38-A DG-1A Fuel Oil Transfer Pump no 1-DG-P-38-B DG-1B Fuel Oil Transfer Pump YES 1-DG-TCV-7-A1 DG-TCV-7-Ai no 1-DG-TCV-7-A2 DG-TCV-7-A2 no 1-DG-TCV-7-B1 DG-TCV-7-B1 YES 1-DG-TCV-7-B2 DG-TCV-7-B2 no 1-DG-TK-26-A DG-1A Fuel Oil Storage TANK DG-TK-26A no 1-DG-TK-26-B DG-1B Fuel Oil Storage TANK DG-TK-26B YES 1-DG-TK-78-A DG-1A Fuel Oil Day TANK DG-TK-78A no 1-DG-TK-78-B DG-1B Fuel Oil Day TANK DG-TK-78B YES 1-DG-V-11-A DG-V-11-A SUP ISOL TO JACKET COOLANT FROM P-122A DISCH no 1-DG-V-11-B DG-V-11-B SUP ISOL TO JACKET COOLANT FROM P-122B DISCH YES 1-DG-V-12-A DG-V-12-A Supply Isolation to P-122A from Jacket Coolant Pump no I-DG-V-12-B DG-V-12-B Supply Isolation to P-122B from Jacket Coolant Pump no 1-DG-V-13-A DG-V-13-A Supply Isolation to P-122A from Heat Exchanger 42A no 1-DG-V-13-B DG-V-13-B Supply Isolation to P-122B from Heat Exchanger 42B no 1-DG-V-9-A DG-V-9-A Supply Isolation to Air Cooler system from P-122A fail no 1-DG-V-9-B DG-V-9-B Supply Isolation to Air Cooler system from P-122B fail YES 1-DM-TK-109 Demin Water TANK TK-109 no 1-DM-TK-259 Demin Water TANK TK-259 no 1-EAH-AC-2-A CE Air Conditioner AC-2A no B-13

Tag ID Component Description SWEL?

1-EAH-AC-2-B CE Air Conditioner AC-2B no 1-EAH-CP-504 RHR VAULTS & EL TNL HVAC CTL PNL no 1-EAH-FN-180-A CCP Cubicle Return FAN EAH-FN-180A no 1-EAH-FN-180-B CCP Cubicle Return FAN EAH-FN-180B YES 1-EAH-FN-31-A RHR Vault Exhaust FAN EAH-FN-31A no 1-EAH-FN-31-B RHR Vault Exhaust FAN EAH-FN-31B no 1-EAH-FN-5-A CE Air Handling FAN EAH-FN-5A no 1-EAH-FN-5-B CE Air Handling FAN EAH-FN-5B no 1-EDE-B-1-A BATTERY EDE-B-1A no 1-EDE-B-1-B BATTERY EDE-B-1B YES I-EDE-BC-1-A BATTERY CHARGER EDE-BC-1A no 1-EDE-BC-1-B BATTERY CHARGER EDE-BC-1B YES 1-EDE-CP-227 FUSE & SHUNT BOX 1A no 1-EDE-CP-229 FUSE & SHUNT BOX 1C no 1-EDE-CP-230 FUSE & SHUNT BOX 1D no 1-EDE-CP-248 AUX RELAY PNL ASS WITH PP-112A no l-EDE-CP-249 AUX RELAY PNL ASS WITH PP-112B no I-EDE-I-1-A INVERTER EDE-I-1A no 1-EDE-I-1-B INVERTER EDE--11B no 1-EDE-I-1-C INVERTER EDE-I-1C no 1-EDE-1-1-D INVERTER EDE--11D no 1-EDE-I-1-E INVERTER EDE-I-1E no 1-EDE-I-1-F INVERTER EDE-I-1F YES 1-EDE-MCC-511 MCC E511 no 1-EDE-MCC-512 MCC E512 no I-EDE-MCC-513 MCC E512 no 1-EDE-MCC-514 MCC E514 no 1-EDE-MCC-515 MCC E515 no 1-EDE-MCC-521 MCC E521 no 1-EDE-MCC-522 MCC E522 no 1-EDE-MCC-531 MCC E531 no 1-EDE-MCC-611 MCC E611 YES 1-EDE-MCC-612 MCC E612 YES 1-EDE-MCC-614 MCC E614 no 1-EDE-MCC-615 MCC E615 no 1-EDE-MCC-621 MCC E621 no 1-EDE-MCC-622 MCC E622 no 1-EDE-MCC-631 MCC E631 no 1-EDE-MCC-641 MCC E641 YES 1-EDE-PP-111-A DC Power Panel 111A no 1-EDE-PP-111-B DC Power Panel 111B no 1-EDE-PP-112-B DC Power Panel 112B YES 1-EDE-PP-l-A 120V AC POWER PANEL (EDE-PP-lA) no I-EDE-PP-1-B 120V AC POWER PANEL (EDE-PP-1B) YES l-EDE-PP-1-C 120V AC POWER PANEL (EDE-PP-1C) no I-EDE-PP-1-D 120V AC POWER PANEL (EDE-PP-1D) no 1-EDE-SWG-11-A 125V DC BUS 11A no 1-EDE-SWG-11-B 125V DC BUS 11B YES 1-EDE-SWG-5 4KV BUS E5 no I-EDE-SWG-6 4KV BUS E6 YES 1-EDE-US-51 480V BUS E51 no I-EDE-US-52 480V BUS E52 no l-EDE-US-53 480V BUS E53 no I-EDE-US-61 480V BUS E61 YES R-1A

Tag ID Component Description SWEL?

1-EDE-US-62 480V BUS E62 no 1-EDE-US-63 480V BUS E63 no 1-EDE-US-64 480V BUS E64 YES 1-EDE-X-5-A 4KV to 480V TRANSFORMER X-5A (E5 to E51) no 1-EDE-X-5-B 4KV to 480V TRANSFORMER X-5B (E5 to E52) no 1-EDE-X-5-C 4KV to 480V TRANSFORMER X-5C (E6 to E61) YES 1-EDE-X-5-D 4KV to 480V TRANSFORMER X-5D (E6 to E62) no 1-EDE-X-5-E 4KV to 480V TRANSFORMER X-5E (E5 to E53) no 1-EDE-X-5-F 4KV to 480V TRANSFORMER X-SF (E6 to E63) no 1-EDE-X-5-H 4KV to 480V TRANSFORMER X-5H (E6 to E64) YES 1-EPA-FN-47-A EFW Train A Supply FAN EPA-FN-47A no 1-EPA-FN-47-B EFW Train B Supply FAN EPA-FN-47B YES 1-EPA-TSH-5430 EPA Fan Temperature Control no 1-EPA-TSH-5431 EPA Fan Temperature Control YES 1-FAH-FN-11-A EXHAUST FAN FOR F-41 FN-11A no 1-FAH-FN-11-B EXHAUST FAN FOR F-74 FN-11B YES 1-FW-FV-4214-A FW FV4214A YES 1-FW-FV-4214-B FW FV4214B YES 1-FW-FV-4224-A FW FV4224A YES 1-FW-FV-4224-B FW FV4224B YES 1-FW-FV-4234-A FW FV4234A no 1-FW-FV-4234-B FW FV4234B no 1-FW-FV-4244-A FW FV4244A no 1-FW-FV-4244-B FW FV4244B no 1-FW-P-37-A Turbine Driven PUMP FW-P-37A no 1-FW-P-37-B Motor Driven PUMP FW-P-37B YES 1-FW-V-30 FW Isolation pneum valve V30 no 1-FW-V-346 TD EFW Pump Recirc Valve FWV346 no 1-FW-V-347 MD EFW Pump Recirc Valve FWV347 YES 1-FW-V-39. FW Isolation pneum valve V39 YES 1-FW-V-48 FW Isolation pneum valve V48 YES 1-FW-V-57 FW Isolation pneum valve V57 no 1-MM-CP-1 PROCESS I&C PROTECT I CAB no 1-MM-CP-108-A REM SAFE SHTDWN CONTROL PANEL no 1-MM-CP-108-B REM SAFE SHTDWN CONTROL PANEL YES 1-MM-CP-12 SSPS TRAIN A CABINET no 1-MM-CP-12 LOGIC CABINET Train A CP-12 no 1-MM-CP-13 SSPS TRAIN B CABINET no 1-MM-CP-13 LOGIC CABINET Train B CP-13 no 1-MM-CP-14 SAFEGUARD TEST TRAIN A CAB no 1-MM-CP-15 SAFEGUARD TEST TRAIN B CAB no 1-MM-CP-2 PROCESS I&C PROTECT II CAB no 1-MM-CP-23 HVAC CABINET 1 no 1-MM-CP-25 COMPUTER RPS DEMULTIPLEXER no 1-MM-CP-295 OPERATOR CONSOLE no 1-MM-CP-3 PROCESS I&C PROTECT III CAB no 1-MM-CP-30 MCB SSPS DEMULTIPLEXER no 2-MM-CP-4 PROCESS I&C PROTECT IV CAB no 1-MM-CP-418 ANNUN 120V AC CONTROL PANEL no 1-MM-CP-450-A RSS DISABLE PNL TRAIN A no 1-MM-CP-450-B RSS DISABLE PNL TRAIN B YES 1-MM-CP-470 ISOLATION CABINET no 1-MM-CP-486-A RVLIS / HELB CONTROL CAB TRNA no 1-MM-CP-486-B RVLIS / HELB CONTROL CAB TRNB no P-1 1

Tag ID Component Description SWEL?

1-MM-CP-5 PROCESS I&C CTL GROUP 1 CAB no 1-MM-CP-519 ATWS MITIGATION CONTROL POWER CABINET no 1-MM-CP-6 PROCESS I&C CTL GROUP 2 CAB no 1-MM-CP-609 DCS PROCESS CONTROL PANEL no 1-MM-CP-612 DCS SECONDARY OPERATORS CONSOLE no 1-MM-CP-618 PRIMARY OPERATORS CONSOLE no 1-MM-CP-619 USS OPERATORS CONSOLE no 1-MM-CP-7 PROCESS I&C CTL GROUP 3 CAB no 1-MM-CP-8 PROCESS I&C CTL GROUP 4 CAB no 1-MM-IR-1 LOOP 1 INST RACK no 1-MM-IR-1O-A CS INST RACK YES 1-MM-IR-1O-B CS INST RACK no 1-MM-IR-1O-C CS INST RACK no 1-MM-IR-1O-D CS INST RACK no 1-MM-IR-11 CS INST RACK no 1-MM-IR-12 PENETRATION AREA NORTH INSTR RACK no 1-MM-IR-13-A PENETRATION AREA SOUTH INSTR RACK no 1-MM-IR-14 VAULT 1 INSTRUMENT RACK no 1-MM-IR-15 VAULT 1 INSTRUMENT RACK no 1-MM-IR-17 PAB INSTR RACK no 1-MM-IR-18-A PAB INSTR RACK no 1-MM-IR-18-B PAB INSTR RACK no 1-MM-IR-19-A PAB INSTR RACK no 1-MM-IR-19-B PAB INSTR RACK no 1-MM-IR-2 LOOP 2 INST RACK no 1-MM-IR-21-A PAB INSTR RACK no 1-MM-IR-3 LOOP 3 INST RACK no 1-MM-IR-4 LOOP 4 INST RACK no 1-MM-IR-49 EMERGE FWP HSE no 1-MM-IR-50 EMERG FWP HSE INSTRUMENT RACK YES 1-MM-IR-52-A INSTRUMENT RACK no 1-MM-IR-52-B INSTRUMENT RACK no 1-MM-IR-6 CS INST RACK no 1-MM-IR-63 TANK FARM INSTRUMENT RACK no 1-MM-IR-7 CS INST RACK no 1-MM-IR-71 TANK FARM INSTRUMENT RACK no 1-MM-IR-73 SERVICE WATER PMP HSE RACK no 1-MM-IR-8 CS INST RACK no 1-MM-IR-80 INSTR RK FS BLDG EL 7-0 no 1-MM-IR-93 PAB INST RACK YES 1-MM-IR-94 PAB INST RACK YES 1-MS-CP-183 MAIN STEAM ISO VLV CAB TRAIN B no 1-MS-CP-185 MAIN STEAM ISO VLV CAB TRAIN B no 1-MSD-V-44 Steam Drain MOV MSD-V-44 no 1-MSD-V-45 Steam Drain MOV MSD-V-45 YES 1-MSD-V-46 Steam Drain MOV MSD-V-46 YES 1-MSD-V-47 Steam Drain MOV MSD-V-47 no 1-MS-PV-3001 ASDV-A RELIEF VALVE MS-PV-3001 no 1-MS-PV-3002 ASDV-B RELIEF VALVE MS-PV-3002 YES 1-MS-PV-3003 ASDV-C RELIEF VALVE MS-PV-3003 no 1-MS-PV-3004 ASDV-D RELIEF VALVE MS-PV-3004 no 1-MS-V-393 SG Steam Supply to Turbine Driven EFW AOV MS-V-393 no 1-MS-V-394 SG Steam Supply to Turbine Driven EFW AOV MS-V-394 YES 1-MS-V-395 Steam Admission VALVE MS-V-395 no B-1 6

Tag ID Component Description SWEL?

1-MS-V-86 MSIV-A MS-V-86 no 1-MS-V-88 MSIV-B MS-V-88 YES 1-MS-V-90 MSIV-C MS-V-90 no 1-MS-V-92 MSIV-D MS-V-92 no 1-NG-FV-4609 Penetration X-40 Isolation VALVE NG-FV-4609 no 1-NG-FV-4610 Penetration X-40 Isolation VALVE NG-FV-4610 no 1-PAH-DP-35-A Pneumatic Isolation DAMPER PAH-DP-35A no 1-PAH-DP-35-B Pneumatic Isolation DAMPER PAH-DP-35B no 1-PAH-DP-36-A Pneumatic Isolation DAMPER PAH-DP-36A no 1-PAH-DP-36-B Pneumatic Isolation DAMPER PAH-DP-36B no 1-RC-CP-110 PRESSURIZER HTR POWER CONTROLLER no 1-RC-CP-388 PRESS HTR CONTROLLER MON no 1-RC-PCV-455-A PZR SPRAY VALVE Train A no 1-RC-PCV-455-B PZR SPRAY VALVE Train B no 1-RC-V-122 PORV Block Valve MOV RC-V-122 no 1-RC-V-124 PORV Block Valve MOV RC-V-124 no 1-RC-V-22 RHR Hot Leg 1 Suction MOV RC-V-22 no 1-RC-V-23 RHR Hot Leg 1 Suction MOV RC-V-23 no 1-RC-V-87 RHR Hot Leg 4 Suction MOV RC-V-87 no 1-RC-V-88 RHR Hot Leg 4 Suction MOV RC-V-88 no 1-RH-E-9-A HEAT EXCHANGER RH-E-9A no 1-RH-E-9-B HEAT EXCHANGER RH-E-9B YES 1-RH-FCV-610 RHR Miniflow Recirc MOV RH-FCV-610 no 1-RH-FCV-611 RHR Miniflow Recirc MOV RH-FCV-611 YES 1-RH-FCV-618 RHR HX A Bypass Valve RH-FCV-618 no 1-RH-FCV-619 RHR HX B Bypass Valve RH-FCV-619 YES 1-RH-HCV-606 RHR AOV RH-HCV-606 no 1-RH-HCV-607 RHR AOV RH-HCV-607 YES 1-RH-P-8-A RHR PUMP RH-P-8A no 1-RH-P-8-B RHR PUMP RH-P-8B YES 1-RH-V-14 RHR Train A Discharge MOV RH-V-14 no 1-RH-V-21 RHR Cross-connect V21 YES 1-RH-V-22 RHR Cross-connect V22 no 1-RH-V-26 RHR Train B Discharge MOV RH-V-26 -no 1-RH-V-32 RHR HL Isolation MOV no 1-RH-V-35 RHR/HP Crosstie MOV RH-V-35 no 1-RH-V-36 RHR/HP Crosstie MOV RH-V-36 YES 1-RH-V-70 RHR HL Isolation MOV no 1-RMW-V-30 Penetration X-36 AOV RMW-V-30 no 1-SB-V-1O SG Blowdown Isolation AOV SB-V-bO no 1-SB-V-l1 SG Blowdown Isolation AOV SB-V-11 no 1-SB-V-12 SG Blowdown Isolation AOV SB-V-12 no 1-SB-V-9 SG Blowdown Isolation AOV SB-V-9 no 1-SEPS-CP-1 SEPS BUS 5 AND 6 TRANSFER CONTROL PANEL no 1-SEPS-CP-2 SEPS REMOTE MONITOR AND CONTROL PANEL no 1-SEPS-CP-3 SEPS SWITCHGEAR ENCLOSURE no 1-SEPS-CP-4 SEPS DIGITAL MASTER CONTROL PANEL no 1-SEPS-CP-5 1-SEPS-DG-2-A no 1-SEPS-CP-6 1-SEPS-DG-2-B SEPS DIESEL ENCLOSURE 2B no 1-SEPS-CP-7 SEPS LOAD BANK CONTROLLERDIGITAL MASTER CONTROL Panel no 1-SEPS-CP-8 SEPS GROUND DETECTION PANEL no 1-SF-E-15-A SPENT FUEL POOL HX A no 1-SF-E-15-B SPENT FUEL POOL HX B YES 1-SF-E-15-C SPENT FUEL POOL HT. EXCH. no R-17

Tag ID Component Description SWEL?

1-SF-P-10-A SPNT FUEL POOL PUMP A no 1-SF-P-10-B SPNT FUEL POOL PUMP B YES 1-SF-P-10-C SPENT FUEL POOL PUMP C no 1-SI-P-6-A SI PUMP SI-P-6A no 1-SI-P-6-B SI PUMP SI-P-6B YES 1-SI-TK-9-A Accumulator TANK SI-TK-9A YES 1-SI-TK-9-B Accumulator TANK SI-TK-9B no 1-SI-TK-9-C Accumulator TANK SI-TK-9C no l-SI-TK-9-D Accumulator TANK SI.TK.9D no I-SI-V-102 SI Hot Leg Isolation MOV V102 no 1-SI-V-i1l SI Cold Leg Isolation MOV V111 YES 1-SI-V-112 SI Cold Leg Isolation MOV V112 no 1-SI-V-114 SI Common CL Isolation MOV V114 no l-SI-V-138 CS CL Isolation MOV SI-V-138 no I-SI-V-139 CS CL Isolation MOV SI-V-139 no 1-SI-V-17 Accumulator CL#2 MOV SI-V-17 no 1-SI-V-3 Accumulator CL#1 MOV Sl-V-3 YES 1-SI-V-32 Accumulator CL#3 MOV SI-V-32 no 1-SI-V-47 Accumulator CL#4 MOV SI-V47 no i-SI-V-77 SI Hot Leg Isolation MOV V77 no i-SI-V-89 SI-B Recirculation MOV SI-V-89 no i-SI-V-90 SI-A Recirculation MOV SI-V-90 no 1-SI-V-93 SI Recirculation Common MOV S1-V-93 no 1-SWA-DP-65 CT SWGR Room Relief DAMPER SWA-DP-65 YES 1-SWA-DP-66 CT SWGR Room Relief DAMPER SWA-DP-66 YES 1-SWA-FN-63 CT SWGR Train B FAN SWA-FN-63 YES 1-SWA-FN-64 CT SWGR Train A FAN SWA-FN-64 no I-SWA-FN-70 CT Pump Area Train B FAN SWA-FN-70 no I-SWA-FN-71 CT Pump Area Train A FAN SWA-FN-71 no 1-SWA-TSH-5666 Temperature Switch YES I-SWA-TSH-5667 Temperature Switch no 1-SWA-TSH-5668 Local temperature Switch YES 1-SWA-TSH-5669 Temperature Switch no 1-SW-CP-82-A SR-2A SW TRAVLNG SCREEN PANEL no 1-SW-CP-82-B SR-2B SW TRAVLNG SCREEN PANEL no 1-SW-FN-51-A SW Cooling Tower FAN SW-FN-51A no 1-SW-FN-51-B SW Cooling Tower FAN SW-FN-51B no i-SW-P-110-A SW Cooling Tower PUMP SW-P-110A no 1-SW-P-110-B SW Cooling Tower PUMP SW-P-110B YES 1-SW-P-41-A SW PUMP SW-P-41A no 1-SW-P-41-B SW PUMP SW-P-41B no I-SW-P-41-C SW PUMP SW-P-41C no 1-SW-P-41-D SW PUMP SW-P-41D no 1.-SW-V-139 CT Spray Train A Bypass VALVE no I-SW-V-140 CT Spray Train B Bypass VALVE no I-SW-V-15 SW-TO-PCC HX Outlet MOV SW-V-15 no I-SW-V-16 DG-E-42A Outlet Isolation AOV SW-V-16 no I-SW-V-17 SW-TO-PCC HX Outlet MOV SW-V-17 no I-SW-V-18 DG-E-42B Outlet Isolation AOV SW-V-18 no l-SW-V-19 SW Return MOV SW-V-19 YES l-SW-V-2 SW Pump P-41A Discharge MOV SW-V-2 no I-SW-V-20 SW Return MOV SW-V-20 YES I-SW-V-22 SW Pump P-41C Discharge MOV SW-V-22 no 1-SW-V-23 SW Cooling Tower Return MOV SW-V-23 YES R-1R

Tag ID Component Description SWEL?

1-SW-V-25 SW Cooling Tower Pump P-110B Discharge MOV SW-V-25 YES 1-SW-V-26 SW Cooling Tower Pump P-110B BYPASS MOV SW-V-26 YES 1-SW-V-27 SW Cooling Tower Pump P-110B Test Recirc MOV SW-V-27 no 1-SW-V-29 SW Pump P-41B Discharge MOV SW-V-29 no 1-SW-V-31 SW Pump P-41D Discharge MOV SW-V-31 no 1-SW-V-34 SW Cooling Tower Return MOV SW-V-34 YES 1-SW-V-4 SW Secondary Isolation MOV SW-V-4 no 1-SW-V-5 SW Secondary Isolation MOV SW-V-5 no 1-SW-V-54 SW Cooling Tower Pump P-110A Discharge MOV SW-V-54 no 1-SW-V-55 SW Cooling Tower Pump P-110A Bypass MOV SW-V-55 no 1-SW-V-56 SW Cooling Tower Pump P-110A Test Recirc MOV SW-V-56 no 1-SW-V-74 SW Return Isolation SWV74 YES 1-SW-V-76 SW Return Isolation SWV76 YES 1-VG-FV-1661 Penetration X-17 Isolation VALVE VG-FV-1661 no 1-VG-FV-1712 Penetration X-17 Isolation VALVE VG-FV-1712 no 1-WLD-FV-8330 Penetration X-34 Isolation VALVE WLD-FV-8330 no 1-WLD-FV-8331 Penetration X-34 Isolation VALVE WLD-FV-8331 no 2-SW-FN-51-B SW Cooling Tower FAN 2SW-FN-51B no B-19

C Seismic Walkdown Checklists (SWCs)

Table C-1. Summary of Seismic Walkdown Checklists

1. 1. - Anchorage Configuration Confirmation Performed Tag ID Component Description SWEL # Building Name Room IDs Equipment Class Page#

1-EDE-MCC-641 MCC E641 SWEL-01 SW Cooling Tower CT101 (01) 480V C-5 MCC 1-EDE-US-E64 480V BUS E64 SWEL-01 SW Cooling Tower CT1 01 (02) Low Deferred Ivoltage SWGR I-EDE-X-5-H 4KV to 480V TRANSFORMER X- SWEL-01 SW Cooling Tower CTIO1 (04) C-8 5H (E6 to E64) transformer (19) 1-SWA-TSH-5668 Local temperature Switch SWEL-01 SW Cooling Tower CT101 temperature C-l1 device CT SWGR Room Relief DAMPER (07) 1-SWA-DP-65 SWA-DP-65 SWEL-01 SW Cooling Tower CT202 pneumatic C-14 damper CT SWGR Room Relief DAMPER (07) 1-SWA-DP-66 SWA-DP-66 SWEL-01 SW Cooling Tower CT202 pneumatic C-1 7 Adamper 1-SWA-FN-63 CT SWGR Train B FAN SWA-FN- SWEL-01 SW Cooling Tower CT202 (09) fan C-20 63 (19) 1-SWA-TSH-5666 Temperature Switch SWEL-01 SW Cooling Tower CT202 temperature C-23 device 1-SW-P-110-B SW Cooling Tower PUMP SW-P- SWEL-01 SW Cooling Tower CT202 (06) pump C-26 110B (vertical drive) 1-SW-V-25 SW Cooling Tower Pump P-11 OB SWEL-01 SW Cooling Tower CT202 (08) MOV C-29 Discharge MOV SW-V-25 1-SW-V-26 SW Cooling Tower Pump P-1 10B SWEL-01 SW Cooling Tower CT202 (08) MOV C-32 BYPASS MOV SW-V-26 1-DG-P-38-B DG-1B Fuel Oil Transfer Pump SWEL-02 DG Bldg Train B DG102 (05) motor- C-35 driven pump 1-DG-TK-26-B DG-1B Fuel Oil Storage TANK SWEL-02 DG Bldg Train B DG102 (21) tank C-38 DG-TK-26B 1 D-C2B DG-I B Starting Air Compressor(12SWEL-02 Skid DG-1B DG Bldg Train B DG202 (12) C-41 I DG-1B TERM BOX ELEC SWEL-02 DGBldg Train B DG202 (20) control 1-DG-CP-37 CONTROL PNL panel C-44 1-DG-CP-76-A DG-1 B CONTROL PANEL A SWEL-02 DG Bldg Train B DG202 (20) control C-47 panel 1-DG-CP-907-B DG-1 B Temperature Control SWEL-02 DG Bldg Train B DG202 (20) control C-50 Panel panel (17) diesel 1-DG-DG-1-B DG-1B SWEL-02 DG Bldg Train B DG202 generator C-53

_________________I generator ______

1DGE41B DG Lube Oil Heat Exchanger 41- SWEL-02 DG Bldg Train B DG202 (21) heat C-56 1B exchanger DG-1 B Motor Driven Aux LUBE (5motor- C5 1-DG-P-117-B OIL PUMP SWEL-02 DG Bldg Train B DG202 (05) m C-59

__________ OIL_____________

PUMP________________ driven pump I_____

C-1

Tag ID Component Description SWEL # Building Name Room IDs Equipment Page #

Class 1-DG-P-1G-1B OIL PUMP B Motor Driven Au FUEL SWEL-02 DG Bldg Train B DG202 (05) motor-driven pump C-62 1-DG-TCV-7-B1 DG-TCV-7-B1 SWEL-02 DG Bldg Train B DG202 (07) AOV C-65 DG-V-11-B SUP ISOL TO 1-DG-V-11-B JACKET COOLANT FROM P- SWEL-02 DG Bldg Train B DG202 (07) AOV C-68 122B DISCH 1-DG-V-9-B DG-V-9-B Supply Isolation to Air SWEL-02 DG Bldg Train B DG202 (07) AOV C-71 Cooler system from P-122B fail 1-EDE-MCC-611 MCC E611 SWEL-02 DG Bldg Train B DG202 (01) 480V C-74 MCC 1-MM-CP-450-B RSS DISABLE PNL TRAIN B SWEL-02 DG Bldg Train B DG202 (20) control C-78 panel 1-DG-TK-78-B DG-1 B Fuel Oil Day TANK DG- SWEL-02 DG Bldg Train B DG305 (21) tank C-81 TK-78B 1-DAH-FN-25-B DG Supply FAN DAH-FN-25B SWEL-02 DG Bldg Train B DG308 (09) fan C-84 1-DG-CP-80 EMERGENCY POWER SWEL03 CB Essential SWGR CB105 (20) control C-87 SEQUENCER DG1B Train B panel C-87 1-EDE-BC-1-B BATTERY CHARGER EDE-BC- SWEL-03 CB Essential SWGR CB105 (16) battery C-90 1B Train B charger 1-EDE-I-1-F INVERTER EDE-1-1 F SWEL-03 CB Essential SWGR CB105 (16) inverter C-93 Train B 1-EDE-MCC-612 MCC E612 SWEL-03 CB Essential SWGR CB105 (01) 480V C-96 Train B MCC 1-EDE-PP-112-B DC Power Panel 112B1 SWEL-03 CB Essential SWGR CB105 (14) power C-100 Train B panel 1-EDE-PP-1-B 120VAC POWER PANEL (EDE- SWEL-03 CB Essential SWGR CB105 (14) power C-103 PP-1 B) Train B panel 1-EDE-SWG-6 4KV BUS E6 SWEL-03 CCB Essential SWGR CB105 (02) Low Deferred Train B voltage SWGR 1-EDE-SWG-11-B 125V DC BUS 11B SWEL-03 CB Essential SWGR CB105 (02) 125 VDC C-106 Train B SWGR 1-EDE-US-61 480V BUS E61 SWEL-03 CB Essential SWGR CB105 (02) Low Deferred Train B voltage SWGR 1-EDE-X-5-C 4KV to 480V TRANSFORMER X- SWEL-03 CB Essential SWGR CB105 (04) C-110 5C (E6 to E61) Train B transformer 1-MM-CP-108-B REM SAFE SHTDWN CONTROL SWEL-03 CB Essential SWGR CB105 (20) control C-113 PANEL Train B panel 1-EDE-B-1-B BATTERY EDE-B-1B SWEL-03 CB Essential SWGR CB106 (15) battery C-116 Train B EFW Train B Supply FAN EPA- Emergency 1-EPA-FN-47-B FN-47B SWEL-04 Feedwater EF301 (09) fan C-119 Pumphouse Emergency (19) 1-EPA-TSH-5431 EPA Fan Temperature Control SWEL-04 Feedwater EF301 temperature C-122 Pumphouse device Emergency 1-FW-FV-4214-A FW FV4214A SWEL-04 Feedwater EF301 (08) MOV C-125 Pumphouse Emergency 1-FW-FV-4214-B FW FV4214B SWEL-04 Feedwater EF301 (08) MOV C-128 Pumphouse Emergency 1-FW-FV-4224-A FW FV4224A SWEL-04 Feedwater EF301 (08) MOV C-131 Pumphouse Emergency 1-FW-FV-4224-B FW FV4224B SWEL-04 Feedwater EF301 (08) MOV C-134 Pumphouse Emergency (05) motor-1-FW-P-37-B Motor Driven PUMP FW-P-37B SWEL-04 Feedwater EF301 (0) 0C-137 Pumphousedriven pump C-2

Tag ID Component Description SWEL # Building Name Room IDs Equipment Class Page #

MD EFW Pump Recirc Valve Emergency 1-FW-V-347 FWV347 SWEL-04 Feedwater EF301 (08) MOV C-140 Pumphouse EMERG FWP HSE Emergency (18) 1-MM-IR-50 INSTRUMENT RACK SWEL-04 Feedwater EF301 instrument C-143 I Pumphouse rack 1-MSD-V-45 Steam Drain MOV MSD-V-45 SWEL-05 MS/FW Pipe Chase MF206 (08) MOV C-146

_________________(East)

MS/FW Pipe Chase 1-MSD-V-46 Steam Drain MOVMSD-V-46 SWEL-05 (East) MF206 (08) MOV C-149 i-FW-V-39 FW Isolation pneum valve V39 SWEL-05 MS/FW Pipe Chase MF304 (07) AOV C-152 (East)

I-FW-V-48 MS/FW FW Isolation pneum valve V48 SWEL-05 (East) Pipe Chase MF304 (07) AOV C-155 SG Steam Supply to Turbine MS/FW Pipe Chase 1 -MS-V-394 Driven EFW AOV MS-V-394 SWEL-05 (East) MF304 (07) AOV C-158 1-MS-PV-3002 ASDV-B 3002 RELIEF VALVE MS-PV- SWEL-05 MS/FW (East) Pipe Chase MF403 (07) AOV C-161 1-MS-V-88 MSIV-B MS-V-88 SWEL-05 MS/FW Pipe Chase MF403 (07) electro- C-164 (East) hydraulic valve 1-CBS-P-9-B CBS PUMP CBS-P-9B SWEL-06 RHR Equipment RV102 (05) drivenmotor- C-167 Vault Train B pump 1-RH-P-8-B RHR PUMP RH-P-8B SWEL-06 RHR Equipment Vault RV104 (06) pump C-170 Train B (vertical drive) 1-CBS-V-5i SI Pump P-6B Suction MOV CBS- SWEL-06 RHR Equipment RV202 (08) MOV C-173 V-51 Vault Train B i-RH-V-36 RHRIHP Crosstie MOV RH-V-36 SWEL-06 RHR Equipment RV202 (08) MOV C-176 Vault Train B 1-SI-P-6-B SI PUMP SI-P-6B SWEL-06 RHR Equipment RV202 (05) motor- C-179 Vault Train B driven pump 1-SI-V-111 SI Cold Leg Isolation MOV V111 SWEL-06 RHR Equipment RV202 (08) MOV C-182 1-CBS-E-1 6-B CBS HX CBS-E-16B SWEL-06 RHR Equipment RV302 (21) heat C-185 Vault Train B exchanger 1-CC-V-266 PCC to CBS HX E-16B Isolation SWEL-06 RHR Equipment RV302 (08) MOV C-188 MOV CC-V-266 Vault Train B i-RH-E-9-B HEAT EXCHANGER RH-E-9B SWEL-06 RHR Equipment RV302 (21) heat C-191 Vault Train B exchanger i-CC-V-272 PCC MOV CC-V-272 SWEL-06 RHR Equipment RV304 (08) MOV C-194 Vault Train B 1-RH-FCV-61i RHR Miniflow Recirc MOV RH- SWEL-06 RHR Equipment RV304 (08) MOV C-i97 FCV-611 Vault Train B i-CBS-V-S RWST Train B Isolation MOV SWEL-06 RHR Equipment RVST2 (08) MOV C-200 CBS-V-5 Vault Train B 1-RH-FCV-619 RHR HX B Bypass Valve RH- SWEL-06 RHR Equipment RVST2 (07) AOV C-203 FCV-619 Vault Train B 1-RH-HCV-607 RHR AOV RH-HCV-607 SWEL-06 RHR Vault Equipment RVST2 (07) AOV C-206 Train B i-RH-V-2i RHR Cross-connect V21 SWEL-06 RHR Equipment RVST2 (08) MOV C-209 Vault Train B 1-CBS-TK-8 RWST TANK CBS-TK-8 SWEL-07 Storage RefuelingTankTF0 Water TF2 (2)tn (21) tank C-2 C-22 1i-CS-LCV-ii12-D CS A Pump Suction MOV CS- SWEL-07 Refueling Water TF201 (08) MOV C-215 LCV-112D SWEL-07 Storage Tank TF201 (08)MOV_ -21 1-CS-LCV-112-E CS B Pump Suction MOV CS- SWEL-07 Refueling Water TF201 (08) MOV C-218 LCV-ii12E Storage Tank 1-CC-E-17-B TRAIN B HX E-17B SWEL-08 PAB 25' Elevation PB401 (21) heat C-221

_exchanger 1-CC-TV-2271-1 PCC Train B HX TV-2271-1 SWEL-08 PAB 25' Elevation PB401 (07) AOV C-224 C-3

Tag ID Component Description SWEL # Building Name Room IDs Equipment Page #

Class 1-CC-TV-2271-2 PCC Train B HX TV-2271-2 SWEL-08 PAB 25' Elevation PB401 (07) AOV C-227 1-SW-V-19 SW Return MOV SW-V-19 SWEL-08 PAB 25' Elevation PB401 (08) MOV C-230 1-SW-V-20 SW Return MOV SW-V-20 SWEL-08 PAB 25' Elevation PB401 (08) MOV C-233 1 5WV23 SW Cooling Tower Return MOV SWEL-08 PAB 25' Elevation PB401 (08) MOV C-236 SW-V-23 1-SW-V-34 SW Cooling Tower Return MOV SWEL-08 PAB 25' Elevation PB401 (08) MOV C-239 SW-V-34 1-CC-P-11-B PCC PUMP CC-P-i 1B SWEL-08 PAB 25' Elevation PB404 (05) motor- C-242 driven pump 1-CC-P- 11-D PCC PUMP CC-P-1 ID SWEL-08 PAB 25' Elevation PB404 (05) motor- C-245 driven pump (19) 1-CC-TE-2271 PCC Train B Temperature SWEL-08 PAB 25' Elevation PB404 temperature C-248 ELEMENT CC-TE-2271 device (19) 1-CC-TE-2297 PCC Train B Temperature SWEL-08 PAB 25' Elevation PB404 temperature C-251 ELEMENT CC-TE-2297 device (18) 1-MM-IR-93 PAB INST RACK SWEL-08 PAB 25' Elevation PB404 instrument C-254 rack 1-CS-P-3-A Boric Acid Tank PUMP CS-P-3A SWEL-08 PAB 25' Elevation PB411 (05) motor- C-257 driven pump 1-CS-TK-4-A Boric Acid Tank 4A SWEL-08 PAB 25' Elevation PB411 (21) tank C-260 1-CS-TK-4-B Boric Acid Tank 4B SWEL-08 PAB 25' Elevation PB411 (21) tank C-263 1-SW-V-74 SW Return Isolation SWV74 SWEL-08 PAB 25' Elevation PB412 (08) MOV C-266 1-SW-V-76 SW Return Isolation SWV76 SWEL-08 PAB 25' Elevation PB412 (08) MOV C-269 CCP Cubicle Return FAN EAH- Containment 1-EAH-FN-180-B FN-180B SWEL-09 Enclosure EV101 (09) fan C-272 Ventilation Area Containment (18) 1-MM-IR-94 PAB INST RACK SWEL-09 Enclosure EV101 instrument C-275 Ventilation Area rack 1-CC-P-322-A Thermal Barrier Train B PUMP SWEL-10 Containment C1205 (05) motor- C-278 P322B driven pump 1-CC-V-i76 Containment Supply Isolation SWEL-10 Containment C1301 (07) AOV C-281 AOV (inside) CC-V-1 76 (18) 1-MM-IR-10-A CS INST RACK SWEL-10 Containment C1205 instrument C-284 rack 1-SI-TK-9-A Accumulator TANK SI-TK-9A SWEL-10 Containment C1205 (21) tank C-287 1-SI-V-3 Accumulator CL#1 MOV SI-V-3 SWEL-10 Containment C1205 (08) MOV C-290 1-SF-P-10-B SPNT FUEL POOL PUMP B SWEL-11 Fuel Storage Bldg FB107 (05) motor- C-293 driven pump 1-CC-V-445 Spent Fuel Pool HX Isolation AOV SWEL-1 1 Fuel Storage Bldg FB202 (07) AOV C-296 CC-V-445 1-SF-E-15-B SPENT FUEL POOL HX B SWEL-11 Fuel Storage Bldg FB202 (21) heat C-299 exchanger I-FAH-FN-11-B EXHAUST FAN FOR F-74 FN- SWEL-1 1 Fuel Storage Bldg FB301 (09) fan C-302 118BI C-4

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-MCC-641 Equipment Class: (1) Motor Control Centers Equipment

Description:

MCC E641 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CT, 22.00 ft, CT101 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

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

C-5

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-MCC-641 Equipment Class: (1) Motor Control Centers Equipment

Description:

MCC E641 See base weld to embedment; size 3/16 or better, weld length >= 2",

spacing <= 19". Matches drawing 9763-F-300209.

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, Yes and masonry block walls not likely to collapse onto the equipment?

Yes, pendulum light may swing + crack glass but not a credible hazard.

Adjacent heater & emergency light very well supported.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-6

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-MCC-641 Equipment Class: (1) Motor Control Centers Equipment

Description:

MCC E641 could adversely affect the safety functions of the equipment?

Second walkdown: Opened cubicles C15, E55, 3 empty spares &Aux relay panel and one cable chase. No concerns.

Note: Forthis MCC cabinet, extensive sample inspections were performed of those breakercubicles that could be inspected with the MCC energized. Based on this extensive sampling and the lack of issues discovered during this inspection, this MCC will be considered adequately inspected and will not be included in the deferred list.

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12

• • Evaluated by: Walter Djordjevic Date: 11/05/12

• • Internal inspection to answer question 11 concerning "other adverse conditions" performed by W. Djordjevic and S. Kenrick C-7

Status: Y U Seismic Walkdown Checklist (SWC)

Equipment ID No.: I -EDE-X-5-H Equipment Class: (4) Transformers Equipment

Description:

4KV to 480V TRANSFORMER X-5H (E6 to E64)

Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CT, 22.00 ft, CT101 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

See visual cracks in floor continuing to pad; since anchorageis weld to anchored embedments, not considered significant. Per9763-F-101698, anchorbolts for embedment go thru pad and down into the floor.

C-8

Status: Y M U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1 -EDE-X-5-H Equipment Class: (4) Transformers Equipment

Description:

4KV to 480V TRANSFORMER X-5H (E6 to E64)

5. Is the anchorage configuration consistent with plant documentation? No (Note: This question only applies ifthe item is one of the 50% for which an anchorage configuration verification is required.)

See welds at 4 comers consistent with drawing 9763-F-300202, however weld length is less than 4" for some locations. Found minimum weld length is about 3.75". However, the weld length is judged to be adequate to assure cabinet anchoragefor the design basis earthquake based on the low seismic demand of the Cooling Tower Elevation 22'-O"0

6. Based on the above anchorage evaluations, is the anchorage free of No 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, Yes and 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 Yes of potentially adverse seismic interaction effects?

C-9

Status: Y M-- U Seismic Walkdown Checklist (SWC)

Equipment ID No.: I -EDE-X-5-H Equipment Class: (4) Transformers Equipment

Description:

4KV to 480V TRANSFORMER X-5H (E6 to E64)

Other Adverse Conditions

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

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-10

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-TSH-5668 Equipment Class: (19) Temperature Sensors Equipment

Description:

Local temperature Switch Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CT, 22.00 ft, CT101 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-1l

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-TSH-5668 Equipment Class: (19) Temperature Sensors Equipment

Description:

Local temperature Switch an anchorage configuration verification is required.)

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, Yes and masonry block walls not likely to collapse onto the equipment?

Overheadlight OK; can swing but no hard impact (clearance).

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

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

C-12

Status: jN U.

Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-TSH-5668 Equipment Class: (19) Temperature Sensors Equipment

Description:

Local temperature Switch

• Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-13

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-DP-65 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

CT SWGR Room Relief DAMPER SWA-DP-65 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CT, 46.00 ft, CT202 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-14

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-S WA-DP-65 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

CT SWGR Room Relief DAMPER SWA-DP-65 an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-15

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-DP-65 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

CT SWGR Room Relief DAMPER SWA-DP-65 Comments Next to FN-63 Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-16

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-DP-66 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

CT SWGR Room Relief DAMPER SWA-DP-66 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CT, 46.00 ft, CT202 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 forci documenting other comments.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

C-17

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-DP-66 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

CT SWGR Room Relief DAMPER SWA-DP-66

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies ifthe 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 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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that. Yes C-18

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-DP-66 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

CT SWGR Room Relief DAMPER SWA-DP-66 could adversely affect the safety functions of the equipment?

Similar to DP-65 Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-19

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-FN-63 Equipment Class: (9) Fans Equipment

Description:

CT SWGR Train B FAN SWA-FN-63 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CT, 46.00 ft, CT202 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 Yes the 50% of SWEL items requiring such verification)?

2, Is the anchorage free of bent, broken, missing or loose hardware? Yes Two anchorsnot plumb; judged not significantissue for capacity.

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

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

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-20

U Status: L N Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-FN-63 Equipment Class: (9) Fans Equipment

Description:

CT SWGR Train B FAN SWA-FN-63 an anchorage configuration verification is required.)

See (2) x 3/8 anchors per pedestal, 4 pedestals. Matches drawing 9763-F-01 704.

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, Yes and masonry block walls not likely to collapse onto the equipment?

9. Do attached lines have adequate flexibility to avoid damage? Yes Lines have sufficient slack for spring isolators.

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

Other Adverse Conditions

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

C-21

Status: 1 jN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-FN-63 Equipment Class: (9) Fans Equipment

Description:

CT SWGR Train B FAN SWA-FN-63 See apparentlyoverloaded springs, two on north side. Not a significant concern for seismic load path.

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-22

Status: Z N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-TSH-5666 Equipment Class: (19) Temperature Sensors Equipment

Description:

Temperature Switch Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CT, 46.00 ft, CT202 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Yes Unistrut anchoredto concrete column.

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

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

C-23

Status: Z N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-TSH-5666 Equipment Class: (19) Temperature Sensors Equipment

Description:

Temperature Switch

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (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 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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-24

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SWA-TSH-5666 Equipment Class: (19) Temperature Sensors Equipment

Description:

Temperature Switch could adversely affect the safety functions of the equipment?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-25

Status: Z N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-P-110-B Equipment Class: (6) Vertical Pumps Equipment

Description:

SW Cooling Tower PUMP SW-P-110B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CT, 46.00 ft, CT202 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 Yes the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Yes See double-nuts.

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

Mild rust on anchor,more sign on baseplatebut this is expected to be very thick. Baseplate rust is a long-term maintenance issue tracked under normal plant procedures.

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

C-26

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-P-110-B Equipment Class: (6) Vertical Pumps Equipment

Description:

SW Cooling Tower PUMP SW-P-110B See some surface cracks on south side. Not a significant concern with a deeply embedded CIP anchor.

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

See (12) x1-1/4 CIP anchors widouble nuts. Matches drawing 9 763-F-101704.

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

C-27

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-P-110-B Equipment Class: (6) Vertical Pumps Equipment

Description:

SW Cooling Tower PUMP SW-P-110B Other Adverse Conditions

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

Normal corrosion of baseplate addressby plant StructuralMonitoring Program Comments Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-28

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-25 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Cooling Tower Pump P-110B Discharge MOV SW-V-25 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CT, 46.00 ft, CT202 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-29

Status: -IN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-25 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Cooling Tower Pump P-110B Discharge MOV SW-V-25 an anchorage configuration verification is required.)

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 Horizontalgap to handrail- 5Y3/4", vertical gap to gage 2Y2 " OK. Gaps OK for shake space since pipe is very well supported.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-30

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-25 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Cooling Tower Pump P-110B Discharge MOV SW-V-25 could adversely affect the safety functions of the equipment?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-31

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-26 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Cooling Tower Pump P-110B BYPASS MOV SW-V-26 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CT, 46.00 ft, CT202 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This auestion only applies if the item is one of the 50% for which C-32

Status: N N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-26 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Cooling Tower Pump P-110B BYPASS MOV SW-V-26 an anchorage configuration verification is required.)

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 Horizontalgap to handrailis 5-1/4", vertical gap to gage is 2-1/4".

Gaps OK for shake space since pipe is very well supported (similarto V-25, except as noted).

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

9. Do attached lines have adequate flexibility to avoid damage? Yes Conduit gap to rail post -1 ")OK based on rigid piping support and flexible conduit. Noted that adjacent walkway is attached to column for along-walkway support.

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

C-33

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-26 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Cooling Tower Pump P-110B BYPASS MOV SW-V-26 Other Adverse Conditions

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

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-34

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-P-38-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

DG-1B Fuel Oil Transfer Pump Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, -16.00 ft, DG102 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Hairline crack visible. Not a significantconcern for capacity.

C-35

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-P-38-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

DG-11B Fuel Oil Transfer Pump

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

See (6) x 3/4" CIP anchors. Matches drawing 9763-F-101392.

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 Overheadlight OK.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions C-36

Status: I- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-P-38-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

DG-1B Fuel Oil Transfer Pump

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

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-37

1. .-

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-TK-26-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

DG-1B Fuel Oil Storage TANK DG-TK-26B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, -16.00 ft, DG102 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-38

Status: 1N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-TK-26-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

DG-1 B Fuel Oil Storage TANK DG-TK-26B an anchorage configuration verification is required.)

See (24) x 1-1/2 CIP anchors each saddle, 48 total. Matches drawing 9763-F-101354.

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-39

Status: 7 N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-TK-26-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

DG-l B Fuel Oil Storage TANK DG-TK-26B could adversely affect the safety functions of the equipment?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-40

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-C-2-B Equipment Class: (12) Air Compressors Equipment

Description:

DG-1B Starting Air Compressor Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 21.00 ft, DG202 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 Yes the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Yes Compressoris on anchoredsteel skid. Compressoris bolted/welded to skid.

Skid anchorageis verified. Skid anchorage is (8) x 1" C/P anchors (4 per side).

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

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

C-41

U Status: L N Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-C-2-B Equipment Class: (12) Air Compressors Equ ipment

Description:

DG-1B3 Starting Air Compressor Visual cracks are present but ]udged to be of minor significance.

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

Anchorage is (8) x I" diameteranchors at base of steel skid into concrete floor. Matches drawing 9763-F-101392 (Detail 101392F).

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

C-42

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment IDNo.: 1-DG-C-2-B Equipment Class: (12) Air Compressors Equipment

Description:

DG-1B Starting Air Compressor Fire piping in area well supported.

Other Adverse Conditions

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

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-43

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-CP-37 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

DG-1 B TERM BOX ELEC CONTROL PNL Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 21.00 ft, DG202 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-44

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-CP-37 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

DG-11B TERM BOX ELEC CONTROL PNL an anchorage configuration verification is required.)

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 Large scaffold to east is well constructed and braced, OK.

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

Overhead crane tied off - OK. Lights are safety chained

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

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

C-45

Status: K- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-CP-37 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

DG-11B TERM BOX ELEC CONTROL PNL Opened door - no issues Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12

• • Evaluated by: Walter Djordjevic Date: 11/05/12

• • Internal inspection to answer question 11 concerning "other adverse conditions" performed by W. Djordjevic and S. Kenrick C-46

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-CP-76-A Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

DG-1B CONTROL PANEL A Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 21.00 ft, DG202 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are presentbut judged to be of minor significance.

Apparently surface cracks and may be paint cracks only.

C-47

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-CP-76-A Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

DG-1 B CONTROL PANEL A

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

Verified >=3" welds per cabinet section each corner (front + rear).

Matches drawing 9763-F-300208.

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

C-48

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-CP-76-A Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

DG-1B CONTROL PANEL A Other Adverse Conditions

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

Verified 76A is bolted to CP-76B Second walkdown:

Cabinets door opened for inspection. No adverse conditions.

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12

• • Evaluated by: Walter Djordjevic Date: 11/05/12

• • Internal inspection to answer question 11 concerning "other adverse conditions" performed by W. Djordjevic and S. Kenrick C-49

Status: L- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-CP-907-B Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

DG-1B TEMP CONTROL PNL Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 21.00 ft, DG202 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Yes Cabinet is mounted to a steel frame. Frame has two columns and each is anchored with four expansion anchors.

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

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

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-50

Status: I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-CP-907-B Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

DG-1B TEMP CONTROL PNL an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-51

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-CP-907-B Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

DG-1B TEMP CONTROL PNL Second Walkdown:

Cabinet opened. No issues or concerns.

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12

• • Evaluated by: Walter Djordjevic Date: 11/05/12

• • Internal inspection to answer question 11 concerning "other adverse conditions" performed by W. Djordjevic and S. Kenrick C-52

Status: I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-DG-1-B Equipment Class: (17) Engine-Generators Equipment

Description:

DG-1B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 21.00 ft, DG202 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are present butjudged to be of minor significance.

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-53

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-DG-1-B Equipment Class: (17) Engine-Generators Equipment

Description:

DG-1B an anchorage configuration verification is required.)

See (34) x 1-1/2 CIP anchors thru skid. Matches drawing 9763-F-101354.

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, Yes and masonry block walls not likely to collapse onto the equipment?

Yes, overhead crane OK; see 1-DG-CP-37 SWC.

9. Do attached lines have adequate flexibility to avoid damage? Yes Lube oil lines have flexible connections. Air startpiping was reviewed

&judged OK

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

Other Adverse Conditions

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

C-54

Status: F N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-DG-1-B Equipment Class: (17) Engine-Generators Equipment

Description:

DG-1B Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-55

Status: n N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-E-41-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

DG Lube Oil Heat Exchanger 41-B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 21.00 ft, DG202 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Item is supported off EDG skid; welded saddles.

C-56

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-E-41-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

DG Lube Oil Heat Exchanger 41-B

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (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 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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-57

Status: K N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-E-41-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

DG Lube Oil Heat Exchanger 41-B could adversely affect the safety functions of the equipment?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-58

Status: I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-P-117-B Equipment Class:- (5) Horizontal Pumps Equipment

Description:

DG-1B Motor Driven Aux LUBE OIL PUMP Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 21.00 ft, DG202 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are present butjudged to be of minor significance.

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-59

Status: IN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-P-117-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

DG-11B Motor Driven Aux LUBE OIL PUMP an anchorage configuration verification is required.)

See (6) x 3/4" CIP anchors. Matches drawing 9763-F-101392.

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions C-60

Status: I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-P-117-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

DG-1B Motor Driven Aux LUBE OIL PUMP

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

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-61

Status: IN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-P-118-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

DG-1B Motor Driven Aux FUEL OIL PUMP Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 21.00 ft, DG202 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Note, pump is attachedto EDG skid.

C-62

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-P-118-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

DG-1B Motor Driven Aux FUEL OIL PUMP

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (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 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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-63

Status: *jN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-P-118-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

DG-11B Motor Driven Aux FUEL OIL PUMP could adversely affect the safety functions of the equipment?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-64

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-TCV-7-B1 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

DG-TCV-7-B1 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 21.00 ft, DG202 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-65

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-TCV-7-B1 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

DG-TCV-7-B1 an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-66

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-TCV-7-B1 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

DG-TCV-7-B1 Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-67

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-V-11-B Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

DG-V-11-B SUP ISOL TO JACKET COOLANT FROM P-122B DISCH Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 21.00 ft, DG202 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-68

Status: F N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-V-11-B Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

DG-V-11-B SUP ISOL TO JACKET COOLANT FROM P-122B DISCH an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-69

Status: LIN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-V-11-B Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

DG-V-11-B SUP ISOL TO JACKET COOLANT FROM P-122B DISCH Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-70

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-V-9-B Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

DG-V-9-B Supply Isolation to Air Cooler system from P-122B fail Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 21.00 ft, DG202 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-71

Status: I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-V-9-B Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

DG-V-9-B Supply Isolation to Air Cooler system from P-122B fail an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-72

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-V-9-B Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

DG-V-9-B Supply Isolation to Air Cooler system from P-122B fail Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-73

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-MCC-611 Equipment Class: (1) Motor Control Centers Equipment

Description:

MCC E611 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 21.00 ft, DG202 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are present butjudged to be of minor significance (appearto be surface cracks)

C-74

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-MCC-611 Equipment Class: (1) Motor Control Centers Equipment

Description:

MCC E611

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

Anchorage is stitch welds to embedments at MCC base; size 3/16 or better, Welds are 2" long at each end of MCC line-up (2 places front, 2 places rear). Welds are 4" long at intersectionof each MCC compartment (9 places front, 9 places rear), equal to 20" o/c.

Matches drawing9763-F-300209.

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

C-75

Status: 1N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-MCC-611 Equipment Class: (1) Motor Control Centers Equipment

Description:

MCC E611 Other Adverse Conditions

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

Second walkdown:

Cabinets opened for inspection as indicatedbelow. No adverse conditions.

Opened all empty spares; Aux. relay panel (ED9); cubicle J3P; cubicle E47 (12 circuit) dist. panel; cubicle BE5.

Note: For this MCC cabinet, extensive sample inspections were performed of those breakercubicles that could be inspected with the MCC energized. Based on this extensive sampling and the lack of issues discovered during this inspection, this MCC will be considered adequately inspected and will not be included in the deferred list.

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12

• • Evaluated by: Walter Djordjevic Date: 11/05/12 C-76

• • Internal inspection to answer question 11 concerning "other adverse conditions" performed by W. Djordjevic and S. Kenrick C-77

U Seismic Walkdown Checklist (SWC)

Status: L N Equipment ID No.: 1-MM-CP-450-B Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

RSS DISABLE PNL TRAIN B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 21.00 ft, DG202 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-78

Status: L N U

Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-CP-450-B Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

RSS DISABLE PNL TRAIN B an anchorage configuration verification is required.)

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 Scaffold above is OK. See notes for 1-DG-CP-37.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-79

Status: IiN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-CP-450-B Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

RSS DISABLE PNL TRAIN B Protective cage aroundpanel wismall clearance, (3/16" at front).

Judged OK because cage is stiff and low mass.

Second walkdown Opened Cabinet, no issues (cage was removed).

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12

• • Evaluated by: Walter Djordjevic Date: 11/05/12

• • Internal inspection to answer question 11 concerning "other adverse conditions" performed by W. Djordjevic and S. Kenrick C-80

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-TK-78-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

DG-1 B Fuel Oil Day TANK DG-TK-78B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 51.00 ft, DG305 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are present but judged to be of minor significance. No seen cracks through or near expansion anchors.

C-81

Status: L7N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-TK-78-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

DG-1B Fuel Oil Day TANK DG-TK-78B

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

See (8) x 5/8 CIP anchors plus (4) x 3/4 expansion anchors. Matches drawing 9763-F-101354.

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-82

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-TK-78-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

DG-11B Fuel Oil Day TANK DG-TK-78B could adversely affect the safety functions of the equipment?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-83

Status: M- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DAH-FN-25-B Equipment Class: (9) Fans Equipment

Description:

DG Supply FAN DAH-FN-25B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): DG, 51.00 ft, DG308 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are present but judged to be of minor significance (appear to be surface cracks).

C-84

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DAH-FN-25-B Equipment Class: (9) Fans Equipment

Description:

DG Supply FAN DAH-FN-25B

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies ifthe 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 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, Yes and masonry block walls not likely to collapse onto the equipment?

No fire piping in the area.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions C-85

Status: F7N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DAH-FN-25-B Equipment Class: (9) Fans Equipment

Description:

DG Supply FAN DAH-FN-25B

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

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-86

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-CP-80 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

EMERGENCY POWER SEQUENCER DG1B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CB, 21.00 ft, CB105 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are present butjudged to be of minor significance.

Appear to be surface cracks only.

C-87

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-CP-80 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

EMERGENCY POWER SEQUENCER DG1B

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (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 Yes potentially adverse seismic conditions?

Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes There is a 2"gap to CP-108-B, 3-3/4"gap to CP-204. Judged to be acceptable for shake space.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions C-88

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-DG-CP-80 Equipment Class: (20) Instrumentation and Control Panels and Cabinets, Equipment

Description:

EMERGENCY POWER SEQUENCER DG1B

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

Second walkdown:

Opened rear3 doors - no issues.

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12

• • Evaluated by: Walter Djordjevic Date: 11/05/12

• • Internal inspection to answer question 11 concerning "other adverse conditions" performed by W.

Djordjevic and S. Kenrick C-89

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-BC-1-B Equipment Class: (16) Inverters Equipment

Description:

BATTERY CHARGER EDE-BC-1B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CB, 21.00 ft, CB105 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks in floor continuing into pad and appearsrelated to steel/concrete interface at embedded channel; since anchorageis weld to anchoredembedments, not considered significant. Per9763-F-101698, anchor bolts for embedment go thru pad and down into the C-90

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-BC-1-B Equipment Class: (16) Inverters Equipment

Description:

BATTERY CHARGER EDE-BC-1B floor.

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

See base weld to embedments; (4) welds total each at inside edge (toe) of C6 base member. Each weld is about 2" long. Equals or exceeds requirementof drawing 9763-F-300208.

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, Yes and masonry block walls not likely to collapse onto the equipment?

9. Do attached lines have adequate flexibility to avoid damage? Yes Connection to 1-EDE-SWG-1 1-B inspected and is OK.

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

C-91

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-BC-1-B Equipment Class: (16) Inverters Equipment

Description:

BATTERY CHARGER EDE-BC-11B Other Adverse Conditions

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

Second walkdown:

Opened cabinet doors for inspection.

One of a dozen fasteners holding bottom coverpanel not fully seated (minorissue, fixed at once).

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11105/12

• • Evaluated by: Walter Djordjevic Date: 11/05/12

• • Internal inspection to answer question 11 concerning "other adverse conditions" performed by W. Djordjevic and S. Kenrick C-92

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-I-1-F Equipment Class: (16) Inverters Equipment

Description:

INVERTER EDE-I-11F Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CB, 21.00 ft, CB105 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are present but judged to be of minor significance.

Appear to be surface cracks only.

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-93

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-I-1-F Equipment Class: (16) Inverters Equipment

Description:

INVERTER EDE-I-1F an anchorage configuration verification is required.)

Anchorage is weld to embedded steel. The cabinet base is made of 8x4 tube steel sleepers and multiple welds are located at the ends of the tubes. Welding exceeds the requiredweld on 9763-F-300209.

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-94

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-I-1-F Equipment Class: (16) Inverters Equipment

Description:

INVERTER EDE-1-1F OK - no loose internalfasteners Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12

• • Evaluated by: Walter Djordjevic Date: 11/05/12

• • Internal inspection to answer question 11 concerning "other adverse conditions" performed by W. Djordjevic and S. Kenrick C-95

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-MCC-612 Equipment Class: (1) Motor Control Centers Equipment

Description:

MCC E612 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CB, 21.00 ft, CB105 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are present but judged to be of minor signficance.

Appear to be surface cracks only.

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-96

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-MCC-612 Equipment Class: (1) Motor Control Centers Equipment

Description:

MCC E612 an anchorage configuration verification is required.)

Anchorage is stitch welds to embedments at MCC base; size 3/16 or better. Welds are 2" long at each end of MCC line-up (2 places front, 2 places rear). Welds are 4" long at intersection of each MCC compartment, equal to 20" o/c.

Matches drawing 9763-F-300209.

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 Cable tray supportsnot a hazardbased on clearance and support configuration.

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

9. Do attached lines have adequate flexibility to avoid damage? Yes C-97

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-MCC-612 Equipment Class: (1) Motor Control Centers Equipment

Description:

MCC E612

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

Other Adverse Conditions

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

Second walkdown:

Cabinets opened for inspection as indicatedbelow. No adverse conditions.

Front Spare - Stab cables loose which is normal Spare above DA5 - Cable chase adjacent to DA5 Spare adjacentto BF7 Spare below BC2 contains wiring harness,mylar insulatingstrip loose at bottom, OK C2L cubicle (terminationstight)

Cubicle below C2L empty B16 - not all screws used to secure insulations Rear Empty cubicle above BC7 Note: Forthis MCC cabinet, extensive sample inspections were performed of those breaker cubicles that could be inspected with the MCC energized. Based on this extensive sampling and the lack of issues discovered during this inspection, this MCC will be considered C-98

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-MCC-612 Equipment Class: (1) Motor Control Centers Equipment

Description:

MCC E612 adequately inspected and will not be included in the deferredlist.

Empty cubicle above B94 Auxiliary Relay Panel EDO MCC Dist. Panel E48 (24 circuits)

Spare BV9 (not all fastener holes are filled by design)

Cable chase adjacentto B72 Spare below B86 (not all fasteners are filled by design)

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12

• • Evaluated by: Walter Djordjevic Date: 11/05/12

• • Internal inspection to answer question 11 concerning "other adverse conditions" performed by W. Djordjevic and S. Kenrick C-99

Status: ZN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-PP-112-B Equipment Class: (14) Distribution Panels

.Equipment

Description:

DC Power Panel 112B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CB, 21.00 ft, CB105 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are present butjudged to be of minor significance.

There are no cracks nearHIL TI's. Anchorage consists of both HIL TI's and welds to embeds.

C-100

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-PP-112-B Equipment Class: (14) Distribution Panels Equipment

Description:

DC Power Panel 112B

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (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 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, Yes and masonry block walls not likely to collapse onto the equipment?

Light above on unitstrutbeam, OK

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-101

Status: r N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-PP-112-B Equipment Class: (14) Distribution Panels Equipment

Description:

DC Power Panel 112B could adversely affect the safety functions of the equipment?

Second walkdown:

Opened cabinet, no issues (see circuit breakers).

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12

• • Evaluated by: Walter Djordjevic Date: 11/05/12

• • Internal inspection to answer question 11 concerning "other adverse conditions" performed by W. Djordjevic and S. Kenrick C-102

Status: Y M U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-PP-1-B Equipment Class: (14) Distribution Panels Equipment

Description:

120VAC POWER PANEL (EDE-PP-1B)

Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CB, 21.00 ft, CB105 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

4. Is the anchorage free of visible cracks in the concrete near the No anchors?

Hairline crack through one HILT/. Strength reductionjudged not to be significantgiven amount of anchoragefor small panel. (HIL TI's + welds to embeds).

C-103

Status: Y M* U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-PP-1-B Equipment Class: (14) Distribution Panels Equipment

Description:

120V AC POWER PANEL (EDE-PP-1B)

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (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 No 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, Yes and masonry block walls not likely to collapse onto the equipment?

Overheadlight is rod hung. Not near the panel and not a hazard.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

C-104

Status: Y M U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-PP-1-B Equipment Class: (14) Distribution Panels Equipment

Description:

120VAC POWER PANEL (EDE-PP-1B)

Other Adverse Conditions

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

Second Walkdown Opened door, no issues (see circuit breakers).

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-105

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-SWG-11-B Equipment Class: (2) Low Voltage Switchgear Equipment

Description:

125V DC BUS 11B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CB, 21.00 ft, CB105 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are present but judged to be of minor significance.

Appear to be surface cracks only.

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-106

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-SWG-11-B Equipment Class: (2) Low Voltage Switchgear Equipment

Description:

125V DC BUS 11 B an anchorage configuration verification is required.)

See base welds to embedments; weld length >=6"each cabinet comer in front and >= 6" each cabinet cornerin rear. Matches drawing 9763-F-300209.

Note: Front left cabinet was opened during second walkdown and welded anchoragewas inspected.

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, Yes and masonry block walls not likely to collapse onto the equipment?

9. Do attached lines have adequate flexibility to avoid damage? Yes Connection to EDE-BC-IB is OK.

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

C-107

Status: I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-SWG-11-B Equipment Class: (2) Low Voltage Switchgear Equipment

Description:

125V DC BUS 11B Other Adverse Conditions

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

Second Walkdown:

Cabinets opened for inspection as indicated below. No adverse conditions.

Cubicle DN3 - not all fastenerlocations are utilized (appearsto be by design) - still has six bolts securing back panel.

1-EDE-B-IO (DN6) - properly racked in Cubicle below DN6 - OK empty Cubicle next to DN3 - OK empty Cubicle DN4 - Brkrproperly seated by 3/8" diameterbolts to enclosure cubicle Cubicle DN5 - Brkr properly seated by 3/8" diameterbolts to enclosure cubicle OK Cubicle DL5 - Brkr properly seated by 3/8" diameterbolts to enclosure cubicle OK Cubicle DN7 - too tall can't confirm bottom internal anchoragebut it has to be there Cubicle DP2 - OK identicalto DN4 Cubicle DN9 - OK identicalto DN4 Cubicle DNO - OK identicalto DN4 C-108

Status: L-N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-SWG-11-B Equipment Class: (2) Low Voltage Switchgear Equipment

Description:

125V DC BUS 11B Cubicle DPI - OK - bottom anchoragenot visible Cubicle DN8 - OK - one front lock washer is uneven because it is in the hole 2 spare cubicles below DN8 are empty All four cubicle doors in rearopened Comments Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12

"*Evaluated by: Walter Djordjevic Date: 11/05/12

• • Internal inspection to answer question 11 concerning "other adverse conditions" performed by W. Djordjevic and S. Kenrick C-109

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-X-5-C Equipment Class: (4) Transformers Equipment

Description:

4KV to 480V TRANSFORMER X-5C (E6 to E61)

Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CB, 21.00 ft, CB105 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are present in pad and floor butjudged to be of minor significance.Appear to be surface cracks only.

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-110

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-X-5-C Equipment Class: (4) Transformers Equipment

Description:

4KV to 480V TRANSFORMER X-5C (E6 to E61) an anchorage configuration verification is required.)

See base weld to embedments; (4) x 4" long welds at corners.

Matches drawing 9763-F-300209.

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-111

Status: 1 N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-X-5-C Equipment Class: (4) Transformers Equipment

Description:

4KV to 480V TRANSFORMER X-5C (E6 to E61) could adversely affect the safety functions of the equipment?

Verified connections to adjacentpanel E61 both front and back.

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-112

Status: Y M U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-CP-108-B Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

REM SAFE SHTDWN CONTROL PANEL Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CB, 21.00 ft, CB105 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are present but judged to be of minor significance.

Appear to be surface cracks only.

C-1 13

Status: YM U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-CP-108-B Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

REM SAFE SHTDWN CONTROL PANEL

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (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 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, Yes and 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 Yes of potentially adverse seismic interaction effects?

C-114

Status: Y M U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-CP-108-B Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

REM SAFE SHTDWN CONTROL PANEL Other Adverse Conditions

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

No:

Impact loading is possible at top right edge of CP-108-B.

Between CP-108B and MCC-631, a steel shim appearswedged into the 3/8" wide gap nearthe top. It is welded to roof of CP-108-B (which is 96" high and shorterthan adjacent MCC-631) but does not appearto be fastened to the MCC. Impact on MCC appears to be on a conduit entry box.

Unknown if above is a relay chatter issue. If CP-108-B does not contain essential relays then the concern may be dismissed. See CAP Second walkdown:

Cabinets opened for inspection as indicatedbelow. No adverse conditions Removed 2 front panels exposing racks. No issues. Opened rear3 doors GZO, G25 and G2K - No issues. Cable bundled at bottom.

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12

• • Evaluated by: Walter Djordjevic Date: 11/05/12 C-115

• • Internal inspection to answer question 11 concerning "other adverse conditions" performed by W. Djordjevic and S. Kenrick Status: -N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-B-1-B Equipment Class: (15) Batteries on Racks Equipment

Description:

BATTERY EDE-B-1B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): CB, 21.00 ft, CB106 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Visual cracks are present butjudged to be of minor significance.

C-116

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-B-1-B Equipment Class: (15) Batteries on Racks Equipment

Description:

BATTERY EDE-B-1 B

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

See base weld to embedment; (2 side) x (4 welds/side) x 3" long weld at each short-directionsupportplane. Matches drawing 9763-F-300208.

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions C-117

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EDE-B-1-B Equipment Class: (15) Batteries on Racks Equipment

Description:

BATTERY EDE-B-1B

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

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-118

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EPA-FN-47-B Equipment Class: (9) Fans Equipment

Description:

EFW Train B Supply FAN EPA-FN-47B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): EF, 27.00 ft, EF301 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Yes Fan is on steel frame in the overhead. Spring housings thru bolts to frame.

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

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

On O/H frame.

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-119

Status: rN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EPA-FN-47-B Equipment Class: (9) Fans Equipment

Description:

EFW Train B Supply FAN EPA-FN-47B an anchorage configuration verification is required.)

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, Yes and masonry block walls not likely to collapse onto the equipment?

9. Do attached lines have adequate flexibility to avoid damage? Yes Lines have good flexibility; as needed for sprung fan.

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

Other Adverse Conditions

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

C-120

Status: F N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EPA-FN-47-B Equipment Class: (9) Fans Equipment

Description:

EFW Train B Supply FAN EPA-FN-47B Fan is on spring housings; housings have seismic snubbers and are SC-L Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-121

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EPA-TSH-5431 Equipment Class: (19) Temperature Sensors Equipment

Description:

EPA Fan Temperature Control Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): EF, 27.00 ft, EF301 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

C-122

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EPA-TSH-5431 Equipment Class: (19) Temperature Sensors Equipment

Description:

EPA Fan Temperature Control

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (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 Yes potentially adverse seismic conditions?

Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Service Air line nearby is not stiff but far enough away (6") for shake space.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions C-123

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EPA-TSH-5431 Equipment Class: , (19) Temperature Sensors Equipment

Description:

EPA Fan Temperature Control

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

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-124

Status: I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-FV-4214-A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

FW FV4214A Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): EF, 27.00 ft, EF301 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This auestion only applies if the item is one of the 50% for which C-125

Status: -IN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-FV-4214-A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

FW FV4214A an anchorage configuration verification is required.)

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 Scaffold is present around 4214-A and 4124-B valves. Scaffold has multiple brace points well distributed; no issues.

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

Temporary beams overhead (for rigging). Judged OK, see A WC for comments.

9. Do attached lines have adequate flexibility to avoid damage? Yes Firepiping main nearby- well supported. See AWC for comments.

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

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-126

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-FV-4214-A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

FW FV4214A could adversely affect the safety functions of the equipment?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-127

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-FV-4214-B Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

FW FV4214B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): EF, 27.00 ft, EF301 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-128

Status: IN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-FV-4214-B Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

FW FV4214B an anchorage configuration verification is required.)

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 See a 2-1/2" gap to insulatedpipe. Judged to be acceptable for shake space. Piping is well supported.

Adjacent scaffold OK, see AWC for comments. Overhead temporary beams also OK.

8, Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

C-129

Status: IN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-FV-4214-B Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

FW FV4214B Other Adverse Conditions

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

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-130

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-FV-4224-A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

FW FV4224A Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): EF, 27.00 ft, EF301 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies ifthe item is one of the 50% for which C-131

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-FV-4224-A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

FW FV4224A an anchorage configuration verification is required.)

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, Yes and masonry block walls not likely to collapse onto the equipment?

Rigid lights above.

9. Do attached lines have adequate flexibility to avoid damage? Yes Attached lines have good flexibility.

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

Other Adverse Conditions

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

C-132

Status: IN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-FV-4224-A Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

FW FV4224A Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-133

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-FV-4224-B Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

FW FV4224B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): EF, 27.00 ft, EF301 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-134

Status: M N U Seismic Walkdown Checklist (SWC)

EquipmentID No.: 1-FW-FV-4224-B Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

FW FV4224B an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-135

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-FV-4224-B Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

FW FV4224B Comments Comments: Next to A valve Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-136

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-P-37-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

Motor Driven PUMP FW-P-37B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): EF, 27.00 ft, EF301 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 I1. Is anchorage configuration verification required (i.e., is the item one of Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This auestion only applies if the item is one of the 50% for which C-1 37

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-P-37-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

Motor Driven PUMP FW-P-37B an anchorage configuration verification is required.)

See (8) x 3/4 diameter CIP bolts. Matches drawing 9763-F-IC01660 (anchor type B-38). Also see steel bearing plates as per 9763-F-101660 (Detail 101660A). Only the anchor bolts are credited for hold-down and shear in analysis (calculation EF- 12).

6. Based on the above anchcrage 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 Overhead trolley OK; trolley track not a collapse hazard.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes

• and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-138

Status: jN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-P-37-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

Motor Driven PUMP FW-P-37B could adversely affect the safety functions of the equipment?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-139

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-V-347 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

MD EFW Pump Recirc Valve FWV347 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): EF, 27.00 ft, EF301 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-140

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-V-347 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

MD EFW Pump Recirc Valve FVVV347 an anchorage configuration verification is required.)

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 Gap to wall conduit is > 3". Judged to be acceptable for shake space.

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

Overhead trolley track well supported and not a collapse hazard.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

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

C-141

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-V-347 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

MD EFW Pump Recirc Valve FWV347 Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-142

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-IR-50 Equipment Class: (18) Instruments on Racks Equipment

Description:

EMERG FWP HSE INSTRUMENT RACK Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): EF, 27.00 ft, EF301 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-143

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-IR-50 Equipment Class: (18) Instruments on Racks Equipment

Description:

EMERG FWP HSE INSTRUMENT RACK an anchorage configuration verification is required.)

Anchorage consists of welded pads, (6) places. Lower pad (shim) is 4.5"x 3.5" plate welded along two short sides to floor embed. Upper pad is foot of rack and is 3.5" square plate, welded along to opposite sides to lower plate. Anchorage matches calculation EF-12 sheet A8.

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 Gap between rack roof and adjacent TS support (at left side) is about 1 ". Judged to be acceptable for shake space since rack is very stiff side/side;it has side-side X-bracing in back plane.

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

9. Do attached lines have adequate flexibility to avoid damage? Yes Tubing at rear of rack OK.

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

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-144

Status: L-N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-IR-50 Equipment Class: (18) Instruments on Racks Equipment

Description:

EMERG FWP HSE INSTRUMENT RACK could adversely affect the safety functions of the equipment?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 C-145

Status: 1 N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MSD-V-45 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

Steam Drain MOV MSD-V-45 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): MF, 3.00 ft, MF206 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. No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

C-146

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MSD-V-45 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

Steam Drain MOV MSD-V-45

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (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 Yes potentially adverse seismic conditions?

Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes Operatorand valve body supported from common lateral tube support.

Operatorflange in contact with soft insulation which is not an issue.

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

Overhead gratingis positively secured.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

C-147

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MSD-V-45 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

Steam Drain MOV MSD-V-45 Other Adverse Conditions

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

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-148

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MSD-V-46 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

Steam Drain MOV MSD-V-46 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): MF, 3.00 ft, MF206 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-149

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MSD-V-46 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

Steam Drain MOV MSD-V-46 an anchorage configuration verification is required.)

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 Operatorand valve body supported from common lateraltube support.

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

Overheadgrating is positively secured.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

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

C-150

Status: F N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MSD-V-46 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

Steam Drain MOV MSD-V-46 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-151

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-V-39 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

FW Isolation pneum valve V39 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): MF, 12.00 ft, MF304 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-152

Status: I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-V-39 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

FW Isolation pneum valve V39 an anchorage configuration verification is required.)

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 Scaffold RF-1444A has incomplete tag but it is still seismically tied off using rigging beam and clamps - no issues.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-153

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-V-39 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

FW Isolation pneum valve V39 could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-154

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-V-48 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

FW Isolation pneum valve V48 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): MF, 12.00 ft, MF304 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. Thespace 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-155

Status: JN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-V-48 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

FW Isolation pneum valve V48 an anchorage configuration verification is required.)

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 Scaffold RF-1424A has incomplete tag but it is still seismically tied off using rigging beam and clamps - no issues.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-156

Status: YjN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FW-V-48 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

FW Isolation pneum valve V48 could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-157

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MS-V-394 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

SG Steam Supply to Turbine Driven EFW AOV MS-V-394 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): MF, 12.00 ft, MF304 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This auestion only applies if the item is one of the 50% for which C-1 58

Status: I- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MS-V-394 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

SG Steam Supply to Turbine Driven EFW AOV MS-V-394 an anchorage configuration verification is required.)

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, Yes and masonry block walls not likely to collapse onto the equipment?

Overhead grating is positively secured.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Scaffold PM-0335 is positively secured and Scaffold RF-1953 is positively secured.

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-159

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MS-V-394 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

SG Steam Supply to Turbine Driven EFW AOV MS-V-394 could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-160

Status: J N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MS-PV-3002 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

ASDV-B RELIEF VALVE MS-PV-3002 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): MF, 27.00 ft, MF403 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-161

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MS-PV-3002 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

ASDV-B RELIEF VALVE MS-PV-3002 an anchorage configuration verification is required.)

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 Adjacent chain fall is tied off.

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

Overhead crane is secured and cannot come off rails.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions C-162

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MS-PV-3002 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

ASDV-B RELIEF VALVE MS-PV-3002

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

Operatoris supportedlaterally.

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-163

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MS-V-88 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

MSIV-B MS-V-88 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): MF, 27.00 ft, MF403 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-164

U Seismic Walkdown Checklist (SWC)

Status: L- N Equipment ID No.: 1-MS-V-88 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

MSIV-B MS-V-88 an anchorage configuration verification is required.)

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 Loose grating secured to scaffold by wire and tie wraps. Scaffold RF-0831 secured to steel platform andproperly green tagged.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-165

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MS-V-88 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

MSIV-B MS-V-88 could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-166

Status: I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-P-9-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

CBS PUMP CBS-P-9B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, -61.00 ft, RV102 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

Mild surface oxidation on some anchors

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

C-167

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-P-9-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

CBS PUMP CBS-P-9B

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

Verified against Drwg 9763-F-101525

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-168

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-P-9-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

CBS PUMP CBS-P-9B could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-169

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-P-8-B Equipment Class: (6) Vertical Pumps Equipment

Description:

RHR PUMP RH-P-8B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, -61.00 ft, RV104 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

One small crack visible on NW support at SW corner of base plate (see markup of drwg 101566). The crack is adjudged a surface crack and will not diminish capacity of anchor.

C-170

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-P-8-B Equipment Class: (6) Vertical Pumps Equipment

Description:

RHR PUMP RH-P-8B

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

Verified against Drwg 9763-F-101525& -101566

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, Yes and masonry block walls not likely to collapse onto the equipment?

Lighting support is ductile.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

C-1 71

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-P-8-B Equipment Class: (6) Vertical Pumps Equipment

Description:

RHR PUMP RH-P-8B Other Adverse Conditions

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

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-172

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-V-51 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SI Pump P-6B Suction MOV CBS-V-51 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, -50.00 ft, RV202 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-1 73

Status: N N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-V-51 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SI Pump P-6B Suction MOV CBS-V-51 an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-174

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-V-51 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SI Pump P-6B Suction MOV CBS-V-51 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-175

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-V-36 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RHR/HP Crosstie MOV RH-V-36 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, -50.00 ft, RV202 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-176

Status: hN U Seismic Walkdown Checklist (SWC)

EquipmentID No.: 1-RH-V-36 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RHRIHP Crosstie MOV RH-V-36 an anchorage configuration verification is required.)

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 Chainfall secured to wall.

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

Overhead gratingis clipped securely.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

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

C-177

Status: LZN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-V-36 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RHR/HP Crosstie MOV RH-V-36 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-178

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SI-P-6-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

SI PUMP SI-P-6B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, -50.00 ft, RV202 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-179

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SI-P-6-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

SI PUMP SI-P-6B an anchorage configuration verification is required.)

Verified against Drwg 9763-F-101525

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 Chainfall secured to wall.

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

Overhead grating is clipped securely.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

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

C-180

Status: -IN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SI-P-6-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

SI PUMP SI-P-6B Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-181

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SI-V-111 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SI Cold Leg Isolation MOV Viii Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, -50.00 ft, RV202 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-182

Status: 1 N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SI-V-111 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SI Cold Leg Isolation MOV Viii an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-183

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SI-V-111 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SI Cold Leg Isolation MOV Viii Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-184

Status: J N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-E-16-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

CBS HX CBS-E-16B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, 0.00 ft, RV302 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

Supported on structuralsteel.

C-185

Status: 7 N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-E-16-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

CBS HX CBS-E-16B

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (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 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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-186

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-E-16-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

CBS HX CBS-E-16B could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-187

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-V-266 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

PCC to CBS HX E-16B Isolation MOV CC-V-266 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, 0.00 ft, RV302 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-188

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-V-266 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

PCC to CBS HX E-16B Isolation MOV CC-V-266 an anchorage configuration verification is required.)

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 Scaffold RF-2561 is securedseismically to cable tray supports. No threatto valve.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-189

Status: IN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-V-266 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

PCC to CBS HX E-16B Isolation MOV CC-V-266 could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-190

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-E-9-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

HEAT EXCHANGER RH-E-9B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, 0.00 ft, RV302 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

One small hairline crack not at anchor.No issue. Two lateraltop braces secured to plate by 4- 3/4" bolts. Plate is welded to embedded plate (in wall) by full length (4'" welds on both sides.

C-191

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-E-9-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

HEAT EXCHANGER RH-E-9B

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

Verified againstDiwg 9763-F-101525

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

C-192

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-E-9-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

HEAT EXCHANGER RH-E-9B Other Adverse Conditions

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

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-193

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-V-272 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

PCC MOV CC-V-272 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, 0.00 ft, RV304 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-194

Status: 7 N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-V-272 Equipment Class: (8) Motor-Operated and Solenoid-O pe rated Valves Equipment

Description:

PCC MOV CC-V-272 an anchorage configuration verification is required.)

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 Scaffold RF-2561A seismically tied off and braced. No issues.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-195

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-V-272 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

PCC MOV CC-V-272 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-196

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-FCV-611 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RHR Miniflow Recirc MOV RH-FCV-611 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, 0.00 ft, RV304 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-197

Status: 7 N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-FCV-611 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RHR Miniflow Recirc MOV RH-FCV-611 an anchorage configuration verification is required.)

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 Overhead gratingis positively secured.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-198

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-FCV-611 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RHR Miniflow Recirc MOV RH-FCV-611 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-199

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-V-5 Equipment Class: (8). Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RWST Train B Isolation MOV CBS-V-5 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, 20.00 ft, RVST2 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-200

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-V-5 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RWST Train B Isolation MOV CBS-V-5 an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Body-to-bonnet flange is approximately 1" from steel platform. It is adjudged acceptable because lateralsupport span is <6 ft and pipe is 12" diameter.

Other Adverse Conditions C-201

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-V-5 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RWST Train B Isolation MOV CBS-V-5

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

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-202

Status: N 7 N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-FCV-619 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

RHR HX B Bypass Valve RH-FCV-619 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, 20.00 ft, RVST2 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-203

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-FCV-619 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

RHR HX B Bypass Valve RH-FCV-619 an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-204

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-FCV-619 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

RHR HX B Bypass Valve RH-FCV-619 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-205

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-HCV-607 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

RHR AOV RH-HCV-607 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, 20.00 ft, RVST2 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-206

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-HCV-607 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

RHR AOV RH-HCV-607 an anchorage configuration verification is required.)

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, Yes and masonry block walls not likely to collapse onto the equipment?

Overhead gratingpositively secured.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

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

C-207

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-HCV-607 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

RHR AOV RH-HCV-607 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-208

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-V-21 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RHR Cross-connect V21 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): RV, 20.00 ft, RVST2 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-209

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment IDNo.: 1-RH-V-21 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RHR Cross-connect V21 an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-210

Status: 1 N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-RH-V-21 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

RHR Cross-connect V21 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-211

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-TK-8 Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

RWST TANK CBS-TK-8 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): TF, 20.00 ft, TF201 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-212

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-TK-8 Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

RWST TANK CBS-TK-8 an anchorage configuration verification is required.)

Verified against Di'wg 9763-F-I 111807

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-213

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CBS-TK-8 Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

RWST TANK CBS-TK-8 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-214

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-LCV-112-D Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

CS A Pump Suction MOV CS-LCV-1 12D Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): TF, 20.00 ft, TF201 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only aprlies if the item is one of the 50% for which C-215

U Status: L- N Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-LCV-112-D Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

CS A Pump Suction MOV CS-LCV-1 12D an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-216

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-LCV-112-D Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

CS A Pump Suction MOV CS-LCV-1 12D Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-217

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-LCV-112-E Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

CS B Pump Suction MOV CS-LCV-1 12E Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): TF, 20.00 ft, TF201 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This auestion only aDDlies if the item is one of the 50% for which C-218

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-LCV-112-E Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

CS B Pump Suction MOV CS-LCV-1 12E an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-219

Status: 1N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-LCV-112-E Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

CS B Pump Suction MOV CS-LCV-1 12E Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-220

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-E-17-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

TRAIN B HX E-17B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB401 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 Yes the 50% of SWEL items requiring such verification)?

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 No oxidation?

NO - Anchors and supports are surface corroded.Recommend cleaning and re-coating at lateralbase support at El. 25 ft. At El. 52' there are 12 - 1.375" anchors properly coated - no issue. Scaffold around heat exchanger is tied off and not an interaction hazard. Heat exchanger is also top bracedlaterally. See CAP.

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

C-221

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-E-17-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

TRAIN B HX E-17B Grout pad at eL 25 ft has cracks but they are not of structuralcapacity concern.

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

Verified against drawing 9763-F-101564

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

C-222

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-E-17-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

TRAIN B HX E-17B Other Adverse Conditions

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

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-223

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-TV-2271-1 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

PCC Train B HX TV-2271-1 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB401 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-224

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-TV-2271-1 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

PCC Train B HX TV-2271-1 an anchorage configuration verification is required.)

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 Pneumaticairsupply line is approximately 3/8" from handrail.

Adjudged OK as pipe is seismically supported in axial direction.

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

9. Do attached lines have adequate flexibility to avoid damage? Yes See answerto question #7

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

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-225

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-TV-2271-1 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

PCC Train B HX TV-2271-1 could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-226

Status: I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-TV-2271-2 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

PCC Train B HX TV-2271-2 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB401 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-227

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-TV-2271-2 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

PCC Train B HX TV-2271-2 an anchorage configuration verification is required.)

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 Accumulator is touching pipe insulation but there is no relative movement possible so OK.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-228

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-TV-2271-2 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

PCC Train B HX TV-2271-2 could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-229

Status: I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-19 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Return MOV SW-V-19 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB401 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This auestion only aDplies if the item is one of the 50% for which C-230

Status: *jN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-19 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Return MOV SW-V-19 an anchorage configuration verification is required.)

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, Yes and masonry block walls not likely to collapse onto the equipment?

Fireprotection piping above is seismically restrained.

9. Do attached lines have adequate flexibility to avoid damage? Yes One power line in contact with pipe supportbut has adequate flexibility.

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

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-231

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-19 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Return MOV SW-V-19 could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-232

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-20 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Return MOV SW-V-20 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB401 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-233

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-20 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Return MOV SW-V-20 an anchorage configuration verification is required.)

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 Scaffold under erection alreadyseismically tied off. No issues.

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

Fireprotection piping above is seismically restrained.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

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

C-234

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-20 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Return MOV SW-V-20 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-235

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-23 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Cooling Tower Return MOV SW-V-23 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB401 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-236

Status: IN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-23 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Cooling Tower Return MOV SW-V-23 an anchorage configuration verification is required.)

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, Yes and masonry block walls not likely to collapse onto the equipment?

Fireprotection piping above is seismically restrained.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

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

C-237

Status: 2N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-23 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Cooling Tower Return MOV SW-V-23 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-238

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-34 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Cooling Tower Return MOV SW-V-34 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB401 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-239

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-34 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Cooling Tower Return MOV SW-V-34 an anchorage configuration verification is required.)

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 Scaffold under erection already seismically tied oft No issues.

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

Fireprotection piping above is seismically restrained.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

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

C-240

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-34 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Cooling Tower Return MOV SW-V-34 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-241

Status: JN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-P-11-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

PCC PUMP CC-P-11B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB404 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Two hairline cracks in concrete pad - no issue

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-242

Status: L N U Seismic Walkdown Checklist (SWC)

EquipmentID No.: 1-CC-P-Il-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

PCC9PUMPCC-P-1B an anchorage configuration verification is required.)

Verified against Diwg 9763-F-101564

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 Restrained chainfall cannot strike lube oil reservoir,so OK.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-243

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-P-11-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

PCC PUMP CC-P-11B Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-244

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-P-11-D Equipment Class: (5) Horizontal Pumps Equipment

Description:

PCC PUMP CC-P-11D Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB404 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Hairlinecracks in concrete pad - no issue C-245

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-P-11-D Equipment Class: (5) Horizontal Pumps Equipment

Description:

PCC PUMP CC-P-11D

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

Verified againstDrwg 9763-F-101564

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? No NO - Unrestrainedchainfall could strike lube oil reservoir- This was immediately corrected by the walkdown team.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions C-246

Status: -M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-P-11-D Equipment Class: (5) Horizontal Pumps Equipment

Description:

PCC PUMP CC-P-11D

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

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-247

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-TE-2271 Equipment Class: (19) Temperature Sensors Equipment

Description:

PCC Train B Temperature ELEMENT CC-TE-2271 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB404 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-248

Status: jN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-TE-2271 Equipment Class: (19) Temperature Sensors Equipment

Description:

PCC Train B Temperature ELEMENT CC-TE-2271 an anchorage configuration verification is required.)

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 Fire wrapped plastic conduit with approximately 3" of temperature element. Adjudged no seismic interactionhazard.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-249

Status: f N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-TE-2271 Equipment Class: (19) Temperature Sensors Equipment

Description:

PCC Train B Temperature ELEMENT CC-TE-2271 could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-250

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-TE-2297 Equipment Class: (19) Temperature Sensors Equipment

Description:

PCC Train B Temperature ELEMENT CC-TE-2297 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB404 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-251

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-TE-2297 Equipment Class: (19) Temperature Sensors Equipment

Description:

PCC Train B Temperature ELEMENT CC-TE-2297 an anchorage configuration verification is required.)

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 Fire wrappedplastic conduit with approximately3" of temperature element. Adjudged no seismic interactionhazard.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions C-252

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-TE-2297 Equipment Class: (19) Temperature Sensors Equipment

Description:

PCC Train B Temperature ELEMENT CC-TE-2297

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

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-253

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-IR-93 Equipment Class: (18) Instruments on Racks Equipment

Description:

PAB INST RACK RACK Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB404 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies ifthe item is one of the 50% for which C-254

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-IR-93 Equipment Class: (18) Instruments on Racks Equipment

Description:

PAB INST RACK RACK an anchorage configuration verification is required.)

Instrument rack has 6 legs. Each leg is welded to an embedded plate by two fillet welds on opposite sides of a 3.5" square foot. Fillet welds are 3.5" in length and 3/16" in size.

Verified againstDrwg 9763-F-101535 and CalculationPB-50

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, Yes and masonry block walls not likely to collapse onto the equipment?

Lighting fixtures above are rod hung and secure.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

C-255

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-IR-93 Equipment Class: (18) Instruments on Racks Equipment

Description:

PAB INST RACK RACK Other Adverse Conditions

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

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-256

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-P-3-A Equipment Class: (5) Horizontal Pumps Equipment

Description:

Boric Acid Tank PUMP CS-P-3A Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB411 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-257

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-P-3-A Equipment Class: (5) Horizontal Pumps Equipment

Description:

Boric Acid Tank PUMP CS-P-3A an anchorage configuration verification is required.)

Verified to Drwg 9763-F-101526

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-258

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-P-3-A Equipment Class: (5) Horizontal Pumps Equipment

Description:

Boric Acid Tank PUMP CS-P-3A Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-259

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-TK-4-A Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

Boric Acid Tank 4A Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB411 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-260

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-TK-4-A Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

Boric Acid Tank 4A an anchorage configuration verification is required.)

Verified to Drwg 9763-F-101526

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 All tubing and instruments supported by tube steel supports. Platform in front of tank is permanent and secured seismically.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-261

Status: jN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-TK-4-A Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

Boric Acid Tank 4A could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-262

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-TK-4-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

Boric Acid Tank 4B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB411 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-263

Status: - N u Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-TK-4-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

Boric Acid Tank 4B an anchorage configuration verification is required.)

Verified to Drwg 9763-F-101526

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 All tubing and instruments supported by tube steel supports. Platform in front of tank is permanent and secured seismically.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-264

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CS-TK-4-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

Boric Acid Tank 4B could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

.Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-265

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-74 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Return Isolation SWV74 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB412 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-266

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-74 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Return Isolation SWV74 an anchorage configuration verification is required.)

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 MOV (actuator)is 1" away from panel box. Seismic restraintin axial direction is about 12 ft away. Seismic displacement for an estimated 8 Hz system segment is about 0. ", so this gap is adequate.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions C-267

Status: fjN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-74 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Return Isolation SWV74

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

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-268

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-76 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Return Isolation SVVV76 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): PB, 25.00 ft, PB412 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-269

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-76 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Return Isolation SWV76 an anchorage configuration verification is required.)

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, Yes and .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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-270

Status: [M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SW-V-76 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

SW Return Isolation SWV76 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-271

Status: -JN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EAH-FN-180-B Equipment Class: (9) Fans Equipment

Description:

CCP Cubicle Return FAN EAH-FN-180B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): EV, 21.00 ft, EV101 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Anchored by steel bolting to steel platform by 8 bolts in total.

C-272

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EAH-FN-180-B Equipment Class: (9) Fans Equipment

Description:

CCP Cubicle Return FAN EAH-FN-180B

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (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 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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-273

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-EAH-FN-180-B Equipment Class: (9) Fans Equipment

Description:

CCP Cubicle Return FAN EAH-FN-180B could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-274

Status: r N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-IR-94 Equipment Class: (18) Instruments on Racks Equipment

Description:

PAB INST RACK RACK Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): EV, 21.00 ft, EV101 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Grout pad has cracks but embedded plate is anchoredinto concrete, so OK.

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-275

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-IR-94 Equipment Class: (18) Instruments on Racks Equipment

Description:

PAB INST RACK RACK an anchorage configuration verification is required.)

Instrument rack has 6 legs. Each leg is welded to an embedded plate by two fillet welds on opposite sides of a 3.5" square foot.. Fillet welds are 3.5"in length and 3/16" in size.

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 PSA# CEVA-21-02 is a storagerack about 3' away and will not collapse or topple as it is anchoredto reinforced concrete wall.

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

Lighting fixtures above are rod hung and secure.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

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

C-276

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-IR-94 Equipment Class: (18) Instruments on Racks Equipment

Description:

PAB INST RACK RACK Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-277

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-P-322-A Equipment Class: (5) Horizontal Pumps Equipment

Description:

Thermal Barrier Train B PUMP P322B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): Cl, -26.00 ft, C1205 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

Mounted to steel frame See photos.

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-278

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-P-322-A Equipment Class: (5) Horizontal Pumps Equipment

Description:

Thermal Barrier Train B PUMP P322B an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-279

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-P-322-A Equipment Class: (5) Horizontal Pumps Equipment

Description:

Thermal Barrier Train B PUMP P322B Comments Detailed signed records of the checklists are available at the site Evaluated by: Ed Antosz Date: 11/05/12 Bruce Bouton 11/05/12 C-280

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-V-176 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): Cl, -26.00 ft, C1205 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only aprlies ifthe item is one of the 50% for which C-281

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-V-176 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-282

Status: - N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-V-176 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

Comments Detailed signed records of the checklists are available at the site Evaluated by: Ed Antosz Date: 11/05/12 Bruce Bouton 11/05/12 C-283

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-IR-10-A Equipment Class: (18) Instruments on Racks Equipment

Description:

CS INST RACK Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): Cl, -26.00 ft, C1205 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Yes Anchorage is welding of legs to embedded plates - No deterioration

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

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

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-284

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-IR-10-A Equipment Class: (18) Instruments on Racks Equipment

Description:

CS INST RACK an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-285

Status: .N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-MM-IR-10-A Equipment Class: (18) Instruments on Racks Equipment

Description:

-CS INST RACK Comments Detailed signed records of the checklists are available at the site Evaluated by: Ed Antosz Date: 11/05/12 Bruce Bouton 11/05/12 C-286

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SI-TK-9-A Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

Accumulator TANK SI-TK-9A Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): Cl, -26.00 ft, C1205 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 No the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Infrequent visible small cracking in group pad and floor. Not a concern consideringsize and number, size and depth of anchors.

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-287

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SI-TK-9-A Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

Accumulator TANK SI-TK-9A an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-288

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SI-TK-9-A Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

Accumulator TANK SI-TK-9A Comments Detailed signed records of the checklists are available at the site Evaluated by: Ed Antosz Date: 11/05/12 Bruce Bouton 11/05/12 C-289

Status: I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SI-V-3 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

Accumulator CL#1 MOV SI-V-3 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): Cl, -26.00 ft, C1205 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-290

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SI-V-3 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

Accumulator CL#1 MOV SI-V-3 an anchorage configuration verification is required.)

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

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

C-291

Status: L N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SI-V-3 Equipment Class: (8) Motor-Operated and Solenoid-Operated Valves Equipment

Description:

Accumulator CL#1 MOV SI-V-3 Comments Detailed signed records of the checklists are available at the site Evaluated by: Ed Antosz Date: 11/05/12 Bruce Bouton 11/05/12 C-292

Status: N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SF-P-10-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

SPNT FUEL POOL PUMP B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): FB, 7.00 ft, FB107 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 Yes the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Yes Anchored by 6 -7/8" anchors.

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

One hairline crack near center bolt - no issue.

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

Drwg 9763 - F- 101668 C-293

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SF-P-10-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

SPNT FUEL POOL PUMP B

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

Verified against Drwg 9763-F-101668

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-294

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SF-P-I0-B Equipment Class: (5) Horizontal Pumps Equipment

Description:

SPNT FUEL POOL PUMP B could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-295

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-V-445 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

Spent Fuel Pool HX Isolation AOV CC-V-445 Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): FB, 21.00 ft, FB202 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 No the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable

3. Is the anchorage free of corrosion that is more than mild surface Not Applicable oxidation?

4. Is the anchorage free of visible cracks in the concrete near the Not Applicable anchors?

5. Is the anchorage configuration consistent with plant documentation? Not Applicable (Note: This question only applies if the item is one of the 50% for which C-296

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-V-445 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

Spent Fuel Pool HX Isolation AOV CC-V-445 an anchorage configuration verification is required.)

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, Yes and masonry block walls not likely to collapse onto the equipment?

Pipingand cable tray/conduit systems are seismically restrained.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

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

C-297

Status: 7 N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-CC-V-445 Equipment Class: (7) Fluid-Operated Valves Equipment

Description:

Spent Fuel Pool HX Isolation AOV CC-V-445 Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-298

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SF-E-15-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

SPENT FUEL POOL HX B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): FB, 21.00 ft, FB202 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

5. Is the anchorage configuration consistent with plant documentation? Yes (Note: This question only applies if the item is one of the 50% for which C-299

Status: M- N U Seismic Walkdown Checklist (SWC)

EquipmentID No.: 1-SF-E-1 5-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

SPENT FUEL POOL HX B an anchorage configuration verification is required.)

Verified against Drwg 9763-F-101668

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, Yes and masonry block walls not likely to collapse onto the equipment?

Piping and cable tray/conduit systems are seismically restrained.

9. Do attached lines have adequate flexibility to avoid damage? Yes

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

Other Adverse Conditions

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

C-300

Status: F N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-SF-E-15-B Equipment Class: (21) Tanks and Heat Exchangers Equipment

Description:

SPENT FUEL POOL HX B Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-301

Status: K- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FAH-FN-11-B Equipment Class: (9) Fans Equipment

Description:

EXHAUST FAN FOR F-74 FN-11B Project: Seabrook SWEL Location (Bldg, Elev, Room/Area): FB, 64.00 ft, FB301 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 Yes the 50% of SWEL items requiring such verification)?

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 Yes oxidation?

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

Forty - 3/4" anchors for seismic limit stop anchors. The vibration isolatorsare ignored for seismic capacity.

C-302

Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FAH-FN-11-B Equipment Class: (9) Fans Equipment

Description:

EXHAUST FAN FOR F-74 FN-11B

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

Verified againstDrwg 9763-F-101586 & -101668

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, Yes and 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 Yes of potentially adverse seismic interaction effects?

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that Yes C-303

Status: j N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: 1-FAH-FN-11-B Equipment Class: (9) Fans Equipment

Description:

EXHAUST FAN FOR F-74 FN-11B could adversely affect the safety functions of the equipment?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 C-304

D Area Walk-By Checklists (AWCs)

Table D-1. Summary of Area Walk-By Checklists AREA WALK- DESCRIPTION ID COMMENTS PAGE BY I-EDE-MCC-641 CT101 SW Cooling Tower 1-EDE-US-64 SWEL-01 D-4 1-EDE-X-5-H 1-SWA-TSH-5668 1-SWA-DP-65 1-SWA-DP-66 1-SWA-FN-63 CT202 SW Cooling Tower 1-SWA-TSH-5666 SWEL-01 D-6 1-SW-P-110-B 1-SW-V-25 1-SW-V-26 1-DG-P-38-B DG102 DG Bldg Train B 1-DG-TK-26-B SWEL-02 D-8 1-DG-C-2-B 1-DG-CP-37 1-DG-CP-76-A I-DG-CP-907-B 1-DG-DG-i-B 1-DG-E-41-B DG202 DG Bldg Train B 1-DG-P-117-B SWEL-02 D-11 1-DG-P-118-B 1-DG-TCV-7-B1 1-DG-V- 11-B 1-DG-V-9-B l-EDE-MCC-611 1-MM-CP-450-B DG305 DG Bldg Train B 1-DG-TK-78-B SWEL-02 D-13 DG308 DG Bldg Train B 1-DAH-FN-25-B SWEL-02 D-15 CB105 ICB Essential SWGR Train B 1-DG-CP-80 SWEL-03 D-1 7 1-EDE-BC-1-B 1-EDE-I-1-F l-EDE-MCC-612 D-1

AREA WALK- DESCRIPTION ID COMMENTS PAGE BY 1-EDE-PP-112-B 1-EDE-PP-1-B 1-EDE-SWG-11-B 1-EDE-SWG-6 1-EDE-U.S-61 1-EDE-X-5-C 1-MM-CP-108-B CB106 CB Essential SWGR Train B 1-EDE-B-1-B SWEL-03 D-19 1-EPA-FN-47-B 1-EPA-TSH-5431 1-FW-FV-4214-A 1-FW-FV-4214-B EF301 Emergency Feedwater Pumphouse 1-FW-FV-4224-A SWEL-04 D-22 1-FW-FV-4224-B 1-FW-P-37-B 1-FW-V-347 1-MM-IR-50 MF206 MSIFW Pipe Chase (East) 1MS0VA5 SWEL-05 D-24 1-MSD-V-46 1-FW-V-39 MF304 MS/FW Pipe Chase (East) 1-FW-V-48 SWEL-05 D-27 1-MS-V-394 MF403 MS/FW Pipe Chase (East) 1-MS-PV-3002 SWEL-05 D-29 1-MS-V-88 RV102 RHR Equipment Vault Train B 1-CBS-P-9-B SWEL-06 D-31 RV104 RHR Equipment Vault Train B 1-RH-P-8-B SWEL-06 D-33 1-CBS-V-51 1-RH-V-36 RV202 RHR Equipment Vault Train B SWEL-06 D-35 1-Si-P-6-B 1-SI-V- 111 1-CBS-E-16-B RV302 RHR Equipment Vault Train B 1-CC-V-266 SWEL-06 D-37 1-RH-E-9-B 1-CC-V-272 RV304 RHR Equipment Vault Train B 1RCV61 1-RH-FCV-611 SWEL-06 D-39 1-CBS-TK-8 TF201 Refueling Water Storage Tank 1-CS-LCV-112-D SWEL-07 D-41 1-CS-LCV-1 12-E PB401 PAB 25' Elevation 1 -CC-E-1 7-B SWEL-081 D-43 1-CC-TV-2271 -1 1-CC-TV-2271-2 1-SW-V-1 9 1-SW-V-20 D-2

AREA WALK- DESCRIPTION ID COMMENTS PAGE BY 1-SW-V-23 1-SW-V-34 1-CC-P-11-B 1-CC-P-11-D PB404 PAB 25' Elevation 1-CC-TE-2271 SWEL-08 D-45 1-CC-TE-2297 1-MM-IR-93 1-CS-P-3-A PB411 PAB 25' Elevation 1--CS-TK-4-A SWEL-08 D-48 1-CS-TK-4-B PB412 PAB 25' Elevation 1-SW-V-74 SWEL-08 D-50 1-SW-V-76 EV101 Containment Enclosure Ventilation Area 1EAHFN180-B SWEL-09 D-53 1-MM-IR-94 1-CC-P-322-A C1205 Containment 1-MM-IR-10-A SWEL-10 D-55 1-SI-TK-9-A 1-SI-V-3 C1301 Containment 1-CC-V-176 SWEL-l10 D-57 FB107 Fuel Storage Bldg 1-SF-P-10-B SWEL-11 D-59 FB202 Fuel Storage Bldg 1-CC-V-445 SWEL-11 D-61 1-SF-E-15-B FB301 Fuel Storage Bldg 1-FAH-FN-11-B SWEL-11 D-63 D-3

Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : CT, 22, CT101 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

Some corrosion on H2E, judged OK for no seismic interaction.

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

See equipment notes.

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

No fire piping in area.

D-4

Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: CT, 22, CT101

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 D-5

Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : CT, 46, CT202 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Lights have safety chains and can swing freely. Light over DP-65 may see minor impact on adjacent C-tray but not a credible hazard.

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

No fire piping in area.

D-6

Status: N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: CT, 46, CT202

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

7. Does it appear that the area is free of potentially adverse seismic Yes interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

Saw temporary stanchion. Stanchion has heavy base & won't topple.

It is more than 18" from nearest equipment item (conduit of pump P-110-A). Not a credible hazard.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 D-7

Status: 7 N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: DG, -16, DG102 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Support of floor supported fire piping has rust, OK but long term maintenance Issue (see photo).

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

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

D-8

Status: - N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: DG, -16, DG102 Wet fire piping, well supported on floor.

Fire piping overhead was inspected. One sprinklerhead was close to a conduit (see photo). Gap is 1-1/4". Based on conservative displacement estimate below, gap is acceptable.

Sprinkleris on a segment of 1" fire pipe running n/s across room, say 50' length of pipe for mass. Pipe segment is restrainedby vertical branch to main, acts as a 18" cantileversupport for segment. Treat as SDOF system.

1"pipe properties wIL = 1.68 Ib/ft (weight/length)

I = 0.08734 inA4 (bending inertia)

E = 29.OE6 psi (modulus) g= 386.4 in/secA2 (accel of gravity)

Get frequency w = (1.68 Ib/ft)*(50') = 84 Ibs (supportedmass) h = 18" (cantileverlength) k = 3*E*l/hA3 = 1300 lb/in f=sqrt(k*g/w)/(2*pi) = 12.3 Hz Estimate displacement for 5g acceleration (very conservative value)

D = (5"386.4)/(2*pi'*12.3)A2 inches = 0.32 inches

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

D-9

Status: L N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: DG, -16, DG102 DG fuel piping and tank is SC-I and not a credible hazard.

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 D-1 0

Status: L N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: DG, 21, DG202 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?

Yes. High energy bus duct well supported to wall.

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

Overhead crane OK - see 1-DG-CP-37 SWC.

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

Firepiping in area well supported.

D-11

Status: E N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: DG, 21, DG202

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

7. Does it appear that the area is free of potentially adverse seismic Yes interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

Yes - scaffold OK (see 1-DG-CP-37 SWC). Mobile platform tied OK.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 D-12

Status: L N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: DG, 51, DG305 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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)?

Check overhead fan - OK, well supported.

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

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

Firepiping in area well supported. Spray nozzles have good clearance.

D-13

Status: - N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: DG, 51, DG305

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 D-14

Status: j N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: DG, 51, DG308 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Pendulum lights can swings and cracking of bulbs may occur for a few. Not a credible hazard to equipment.

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

D-15

Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: DG, 51, DG308 No fire protection piping seen

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 D-16

Status: 7 N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: CB, 21, CB105 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

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

No fire protection piping in area.

D-17

Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: CB, 21, CB105

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

7. Does it appear that the area is free of potentially adverse seismic Yes interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

East end of room, large scaffold assy (tall) was inspected. Well constructed(+ tagged). Tied to C-tray unistrut system for e/w stability.

Other scaffolds viewed in area of CB109. Consistent bracing to bldg hard points. No issues.

Stanchions at east end of SWG-6 unit - standoff > 18". Stanchion has heavy base & won't topple. It is more than 18" from nearestequipment item (SWG-6). Not a credible hazard.

Mobile equip in area tied off or stowed in good condition.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 D-18

Status: Y N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: CB, 21, CB105 Status: F N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: CB, 21, CB106 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles D-1 9

U Status: I N Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: CB, 21, CB106 and lighting)?

Lights on short pendulums, no issues (swing space OK).

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

No spray sources.

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 D-20

Status: - N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: CB, 21, CB106 D-21

Status: -N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: EF, 27, EF301 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Hoist trolley not a collapse hazard. Hoist is restrainedto tie off on wall.

Hoist track has adequate support.

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

D-22

Status: - N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: EF, 27, EF301 Overhead fire piping main with welded joints and threadedjoint at valve. Checked support conditions andjudged OK.

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

7. Does it appear that the area is free of potentially adverse seismic Yes interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

Loose stanchion near insulatedpipe, 8" from insulation, 10" from pipe.

Another is 4Y2" to conduit. Stanchion is bottom weighted and won't topple but can slide. Stanchion judged not to be a hazard to nearby targets (no soft targets).

Scaffold near 1-FW-FV-4214-A, B seen to have multiple brace points well distributed. Overheadlift beams above scaffold C-clamped with clamps in vertical direction, OK. Beams are part of scaffold tagging.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?

Comments:

Detailed signed records of the checklists are available at the site.

Evaluated by: John O'Sullivan Date: 11/05/12 Scott Kenrick 11/05/12 D-23

Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: EF, 27, EF301 Status: N N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : MF, 3, MF206 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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)?

Cable tray, HVAC and piping are seismically supported.

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

D-24

Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: MF, 3, MF206

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

Scaffold RF-1434 and 1444 are seismically bracedto pipe supports and cable tray supportsand properly tagged - no issues.

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 D-25

11/05/12 Bruce Bouton 11/05/12 D-26

Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : MF, 12, MF304 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Scaffolds PM-1424A & RF-1444A are seismically secured.

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

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

D-27

Status: I N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: MF, 12, MF304

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

Transient combustible CWP-12-3272 permit for pneumatic and hydraulicfluid. Two carts are on wheels and securely strapped to grating with temporary tags in place. Cart is seismically adequate.

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-28

Status: JN U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: MF, 27, MF403 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Scaffolding is properly braced, tied off and tagged.

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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)?

Overhead crane is secured by chain fall and cannot be dislodged.

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

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

D-29

Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: MF, 27, MF403

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-30

Status: - N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: RV, -61, RV102 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Overhead gratingis anchored to platform.

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

Dischargepipe support on west wall has slight corrosion which is not deemed an issue.

D-31

Status: L N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: RV, -61, RV102

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-32

Status: i N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: RV, -61, RV104 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

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

D-33

Status: N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: RV, -61, RV104

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

7. Does it appear that the area is free of potentially adverse seismic Yes interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

Storage box tagged with permanent tag and properly set off from pump, therefore, OK.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-34

Status: 1 N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: RV, -50, RV202 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Radiation sign stanchion will not topple and it's secured to floor grating with wire.

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Overheadgratingpositively secured.

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

D-35

Status: L N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: RV, -50, RV202

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-36

Status: L N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: RV, 0, RV302 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Stanchions at El (-)31 ft in tagged permanent storage area secured by rope. No issues.

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

D-37

Status: 7 N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: RV, 0, RV302

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-38

Status: jN U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: RV, 0, RV304 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Scaffold RF-2161A seismically tied off

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

Grating is tied down.

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

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

D-39

Status: 7 N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: RV, 0, RV304

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-40

Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : TF, 20, TF201 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

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

All tanks and piping seismically secure.

D-41

U Status: M N Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : TF, 20, TF201

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

7. Does it appear that the area is free of potentially adverse seismic Yes interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

Small platforms (scaffolds) tied off seismically.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-42

Status: j N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: PB, 25, PB401 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

Air/gas cylinders are well restrained.

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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)?

Demin water and fire protectionpiping laterally restrained.

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

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

D-43

Status: N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: PB, 25, PB401

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-44

Status: L N U

Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: PB, 25, PB404 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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)?

Demineralizedwater and fire protection piping are seismically restrained.

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

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

D-45

Status: L N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: PB, 25, PB404 All piping in area is seismically restrained.

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

7. Does it appear that the area is free of potentially adverse seismic Yes interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

PSA (permanentstorage area) #PAB-25-11 has a storage cabinet that is 72" tall and could topple onto IR 1-MM-IR-20C but there is nothing vital on rack thus no issue (to be confirmed). Instrument Rack 1-MM-IR-20-C is not nuclear safety, not Class 1E, and not trip critical. Were the storage cabinet to topple onto it, there would be no adverse consequences.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-46

D-47 Status: F N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: PB, 25, PB411 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

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

D-48

Status: 1 N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: PB, 25, PB411

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

WG (waste gas) piping which may contain hydrogen gas is well supported seismically in area and socket welded.

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-49

Status: Y M U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: PB, 25, PB412 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of No significant degraded conditions?

NO - Service water pipe support #1821-RG-8, near valve SW-V-74 is corrodedbelow El. 25 ft (SW line) directly beneath Scaffold NP-0117A.

Cleanup/repair/re-coatingis advisable. See CAP

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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)?

Fire protection system deluge station l-FP-V-709 & 1-FP-V-687 are seismically restrainedsuch that threadedend piping termination and mechanical (Victaulic) couplings are not an issue.

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

5. Does it appear that the area is free of potentially adverse seismic Yes D-50

Status: Y M U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: PB, 25, PB412 interactions that could cause flooding or spray in the area?

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-51

D-52 Status: F7N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : EV, 21, EV101 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 Yes potentially adverse seismic conditions (ifvisible without necessarily opening cabinets)?

Free standing unanchoredplenum box is cable restrainedat top and bottom adjacent to 1-MM-IR-94 so OK.

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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)?

Mostly HVAC and it is seismically retrained.

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

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

D-53

Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: EV, 21, EV101

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-54

Status: j N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: Cl, -26, C1205 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

All equipment well anchored

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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)?

All well supported

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

Lighting well secured

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

D-55

Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: Cl, -26, C1205

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

7. Does it appear that the area is free of potentially adverse seismic Yes interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

No scaffolding

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site Evaluated by: Ed Antosz Date: 11/05/12 Bruce Bouton 11/05/12 D-56

Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: Cl, 0, C1301 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

All equipment well anchored

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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)?

All well supported

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

Lighting well secured

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

D-57

Status: -- N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : Cl, 0, C1301

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

7. Does it appear that the area is free of potentially adverse seismic Yes interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

Scaffolding installedper station procedures,no seismic interaction.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site Evaluated by: Ed Antosz Date: 11/05/12 Bruce Bouton 11/05/12 D-58

Status: j N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: FB, 7, FB107 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

All piping is seismically supported.

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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)?

Overhead utilities including demin water and fire protection piping are seismically supported.

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

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

D-59

Status: - N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: FB, 7, FB107

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-60

Status: N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: FB, 21, FB202 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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)?

All raceways are seismically supported.

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

Ladder storage area 14 and PSA FSB-25-01 restrainladders and bottles securely.

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

D-61

Status: - N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: FB, 21, FB202

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

7. Does it appear that the area is free of potentially adverse seismic Yes 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 Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-62

Status: - N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area : FB, 64, FB301 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 Yes potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit Yes 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 Yes spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

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

D-63

Status: L N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area: FB, 64, FB301

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

7. Does it appear that the area is free of potentially adverse seismic Yes interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

Fire extinguishers mounted on reinforced concrete wall are set on deep hooks so OK.

8. Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?

Comments Detailed signed records of the checklists are available at the site.

Evaluated by: Walter Djordjevic Date: 11/05/12 Bruce Bouton 11/05/12 D-64

E Plan for Future Seismic Walkdown of Inaccessible Equipment As described in the SWEL for Seabrook in Appendix B, 3 items have been deferred until Refueling Outage 16 in the Spring of 2014 when the major 4KV bus (E5 or E6) is de-powered.

Table E-1 summarizes the reasons each item is inaccessible during normal plant operation.

These items have been issued a CAP where a schedule the future Seismic Walkdowns for these items is provided.

Table E-1. Summary of Inaccessible Equipment Component ID Description Reason for Inaccessibility 1-EDE-SWG-6 4KV Bus E6 Equipment energized - equipment outage required (See CAP) 1-EDE-US-61 480V Bus E61 Equipment energized - equipment outage required (See CAP) 1-EDE-US-64 480V Bus E64 Equipment energized - equipment outage required (See CAP)

E-1

F Peer Review Report Peer Review Report for the Seismic Walkdown Inspection of Seabrook Station (NRC Near Term Task Force Recommendation 2.3)

Seabrook Station November 2012 Prepared by Ken. Kiper (PR Team Lead) Date Reviewed by , - 2012.

Rich Turcotte (PRA Group) Date Reviewed by /_ /_1__b____

Ti Cssidy eratisio) Date Reviewed by e "

Aruce Bouton (Engineering) Date F-1

I Introduction This report documents the peer review of the seismic walkdowns performed for Seabrook Station in August and September 2012, in support of the NRC Near Term Task Force (NTTF)

Recommendation 2.3. This document describes the peer review team and process (Section 3),

the peer review of the SWEL selection (Section 4), and the peer review of the seismic walkdown (Section 5).

The peer review was performed consistent with Section 6 of the EPRI-TR-1 025286 (REF 1) guidance document and addresses the following specific activities:

" Review of the selection of components for the Seismic Walkdown Equipment List (Section 4)

" Review of a sample of the checklists prepared for the Seismic Walkdowns & Walk-Bys (Section 5.1)

" Review of any licensing basis evaluations (Section 5.2)

" Review of the decisions for entering the potentially adverse conditions in to the plant's Corrective Action Program (Section 5.2)

" Review of the final submittal report (Section 6).

2 Background

This peer review covers three portions of the seismic walkdown: (a) the preparation of the SWEL, (b) the actual walkdown, and (c) the final submittal report.

The Seismic Walkdown Equipment List (SWEL) was prepared in July and August and finalized in September, based on revisions that occurred during the walkdowns. Section 3 describes the process of peer reviewing the SWEL.

The vast majority of the seismic walkdowns occurred on August 29, 30, & 31, with two teams the first two days and a single team on the last day. The peer review of the walkdowns occurred in the afternoons of August 29 & 30. This portion of the peer review is documented in Section 4.

One area - containment - was walked down separately on Sept 19, during the OR1 5 refueling outage. This allowed the walkdown to occur with less radiation exposure to the walkdown team.

Three components could not be examined entirely with the bus powered: essential 4KV switchgear Bus E6, and unit substations US61 & US64. Consequently, the walkdown for these components was postponed to the next scheduled outage when Bus E6 is scheduled to be removed from service for maintenance. These inspection deferrals are being tracked by See CAP (Bus E6) and (US 61 & US64).

F-2

3 Peer Review Team & Process The Seabrook Peer Review Team consisted of individuals from Seabrook operations, structural engineering, and PRA as well as structural/seismic engineers from Stevenson & Assoc. These individuals participated in phases of preparation, performance and peer review of the seismic walkdowns. This section documents the peer review process and how the Peer Review Team interacted with the Seismic Walkdown Engineering Teams.

3.1 Peer Review Team The affiliation, role, and qualifications for each Peer Review Team member are summarized in the following table.

Name Group Role

• Qualifications **

Tim Cassidy SBK Operations PR - SWEL (e), (f)

PR - SWE Teams A &

B Bruce Bouton SBK Structural SWE Team #1 (a), (b), (c), (e)

Engineering PR - SWE Team B Scott Kenrick SBK Structural SWE Team #2 (a), (b), (c), (e)

Engineering PR - SWE Team A Ken Kiper SBK PRA Group PR Team Lead (d), (e)

SWEL Preparer PR - SWE Teams A &

B Rich Turcotte SBK PRA Group PR - SWEL (c), (d), (e)

PR - SWE Teams A &

B Ed Antosz SBK PRA Group SWE Team (a), (c)

(Containment)

Walter Stevenson & SWE Team #1 (a), (b), (c)

Djordjevic Assoc. PR - SWE Team B (consultant eng.)

John O'Sullivan Stevenson & SWE Team #2 (a), (b), (c)

Assoc. PR - SWE Team A (consultant eng.)

Notes:

• Role: PR (peer review), SWEL (seismic walkdown equipment list), SWE (seismic walkdown engineer)

• • Qualifications:

(a) Completed EPRI NTTF 2.3 Seismic Walkdown Training (b) Seismic engineering experience (c) Degree in mechanical engineering or civil/structural engineering (d) Seismic PRA / IPEEE experience (e) Knowledge of plant operations, documentation (f) Plant Operations member 3.2 Peer Review Process

• PR Team Lead K. Kiper served as the Peer Review Team Lead. In that role, he was responsible for coordinating the peer review and assembling this report. As described below, he also F-3

performed some additional roles as part of the walkdown team PR. He also had the lead in the SWEL preparation, so he was not part of that PR process.

• SWEL Preparation The SWEL was prepared by K. Kiper, who is the lead Seabrook PRA engineer, with experience and familiarity with the Seabrook IPEEE Report and Seabrook Seismic PRA.

The SWEL was reviewed by a team that included a PRA engineer (R. Turcotte), design structural engineer (B. Bouton), and Operations representative (T. Cassidy). All of these individuals are familiar with the design and layout of the plant and plant documentation.

" Lead - K. Kiper

• PR Team for SWEL - R. Turcotte, B. Bouton, T. Cassidy

• Seismic Walkdown The primary seismic walkdown was conducted with two teams, each with two qualified structural/seismic engineers. The Peer Review of the walkdowns consisted of two teams made up of Operations representative (T. Cassidy), PRA representatives (K. Kiper, R.

Turcotte), and structural/seismic engineers (B. Bouton, S. Kenrick, W. Djordjevic, J.

O'Sullivan). The structural/seismic engineers made up the SWE teams, but also served to peer review each other's work. The Operations and PRA representatives also participated in some of the walkdowns for logistical support as well as peer review. The ultimate judgments regarding licensing basis were made by qualified Seabrook structural engineers (B. Bouton, S. Kenrick).

" Seismic Walkdown Engineers (SWE):

- SWE Team #1 - W. Djordjevic (team lead), B. Bouton

- SWE Team #2 - J. O'Sullivan (team lead), S. Kenrick

- SWE (Containment) - B. Bouton (team lead), E. Antosz

" PR SWE Team A - K. Kiper, R. Turcotte, T. Cassidy, S. Kenrick, J. O'Sullivan

" PR SWE Team B - K. Kiper, R. Turcotte, T. Cassidy, B. Bouton, W. Djordjevic

" Licensing Basis Reviewers - B. Bouton, S. Kenrick

" IPEEE Reviewers - K. Kiper, R. Turcotte

• Final Report The final seismic walkdown report was prepared by the Stevenson & Assoc. consultants, with review by Seabrook representatives from Operations, design structural engineering, and PRA.

" Preparers -W. Djordjevic, J. O'Sullivan

" Reviewers - K. Kiper, R. Turcotte, T. Cassidy, B. Bouton F-4

4 Peer Review - Selection of Components for SWEL The purpose of this section is to describe the process to perform the peer review of the selected components that were included in the Seismic Walkdown ..Equipment(REF 2) List (SWEL). This peer review was based on review of the SWEL Selection Report (

The guidance in Section 3: Selection of SSCs of the EPRI Technical Report (REF 1) was used as the basis for this review. Specifically, this peer review utilized the checklist in Appendix F:

Checklist for Peer Review of SSC Selection of the EPRI Technical Report in Reference 1. of this peer review report documents the completed checklist.

This peer review determined that the SSCs selected for the SWEL 1 seismic walkdowns represent a diverse sample of equipment required to perform the five safety functions and to meet the sample selection attributes, including:

" Various types of systems

" Major new and replacement equipment

" Various types of equipment

" Various environments

" Equipment enhanced based on the findings of the IPEEE

" Risk insight consideration For SWEL 2 development, the peer review determined that spent fuel related items were adequately considered and were appropriately included or excluded.

This peer review resulted in no additional findings. All peer review comments requiring resolution were incorporated prior to completion of the SWEL Selection Report.

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

F-5

5 Peer Review - Seismic Walkdown The peer review of the seismic walkdowns was completed by the PR Teams on August 29 & 30, following the walkdowns for those days. Additional peer reviews were conducted following the walkdowns as documented in this report.

5.1 Review of Sample Checklists & Area Walk-bys The peer review meetings on August 29 & 30 consisted of each SWE Team (#1 and #2) presenting samples from their Seismic Walkdown Checklist (SWC) and Area Walk-by Checklist (AWC) that they had completed that morning. This peer review meeting following the day's walkdown activities allowed for an immediate information exchange and feedback on walkdown observations between each walkdown team as well as common agreement on how observation issues would be addressed.

Table 5-1 lists the sample of 25 components from the Seismic Walkdown Checklist (SWC) that were discussed in the peer review meetings. These component samples represent about 25%

of the total SWEL population of 102 components. The sample includes a variety of component "types" (e.g., heat exchanger, valve, pump, tank, instrument rack, unit substation, transformer, fan, motor control center, compressor, power panel, and control panel) and variety of component "locations" (e.g., RHR vault, PAB, Tank Farm, SW cooling tower, DG Bldg, and Essential Switchgear room).

Table 5-2 lists the sample of 10 areas from the Area Walk-by Checklist (AWC) that were discussed in the peer review. These area samples represent about a third of the total AWC population of 29 rooms. These areas included the RHR vault, PAB, Tank Farm, SW cooling tower, DG Bldg, and Essential Switchgear room.

Tables 5-1 and 5-2 document observations made by the walkdown teams that form the basis for the peer review. The following topics were addressed by each team:

" Concrete Cracks - Cracks were observed in the concrete floors in the vicinity of where components were anchored. Since the guidance does not give discretion for the significance of the crack, the peer review team agreed that concrete cracks located near anchorage should be recorded as "U" (unresolved) finding. Then, after follow-up review, these findings could be changed to "YES" if the crack is a minor surface crack or "NO" if the concrete crack is located near anchorage, is more than a minor surface crack, and may need further detailed evaluation.

" Physical Interaction - Several of the component samples provided an example of close spacing between the SWEL component and a hard object (such as a fixed structural support or a hand rail), with the potential for seismic interaction. In each case, the close spacing was judged to provide adequate clearance, but this did reinforce the importance of careful field examination of each component for potential seismic/spatial interaction.

" Seismic Housekeeping - Seismic housekeeping was assessed in each area and found to be acceptable. Storage boxes were tied off or physically separated from equipment in designated areas. The presence of stanchions used to display signs or to rope off protected train equipment was noted. It was agreed that these stanchions do not represent a significant seismic risk due to tipping or lateral movement because: (1) the stanchions typically have a heavy base and very low center of gravity, and (2) overall, the stanchions have relatively light weight and are adequately tethered at the base to prevent significant lateral movement during a seismic event.

F-6

" Seismic Scaffolding - Erected scaffolding was observed in a number of areas. In each case, the scaffolding was carefully and adequately braced in multiple lateral directions to prevent the scaffolding from interacting with other equipment during a seismic event. All scaffolding was erected by procedure with the controlling permit documented and displayed at each scaffolding. This was observed by both walkdown teams.

" Non-safety Piping in Safety Related Buildings - Non-safety piping in all walk-by areas was observed to be well supported with lateral restraints.

No significant issues were identified from the peer review team discussions.

5.2 Review of Licensing Basis Evaluations & Corrective Action Process The final report provides a list of the anomalies encountered during the Seabrook seismic walkdown inspections and how they were addressed. The review of those anomalies demonstrates a thorough and reasonable process for addressing open issues. There were no comments offered by the peer review team.

6 Review Final Submittal Report & Sign-off The final submittal report has been reviewed by Seabrook representatives from structural engineering, Operations, and the PRA Group. Comments were provided to assure the final report meets the requirements of the EPRI 1025286 - Seismic Walkdown Guidance (REF. 1) 7 References

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

2. Seabrook Report, Selection of the Seabrook Station Seismic Walkdown Equipment List (SWEL) for the Requirement 2.3 Walkdown, Rev 01, September 2012.

F-7

ATTACHMENT 1: PEER REVIEW CHECKLIST Peer Review Checklist for SWEL Instructions for Completing Checklist This peer review checklist may be used to document the review of the Seismic Walkdown Equipment List (SWEL) in accordance with Section 6: Peer Review. The space below each question in this checklist should be used to describe any findings identified during the peer review process and how the SWEL may have changed to address those findings. Additional space is provided at the end of this checklist for documenting other comments.

1. Were the five safety functions adequately represented in the SWEL 1 selection? YO Nn Requirement met.

Remarks: No issues identified during peer review. The SWEL development included various components that support each of the five key safety functions. The functions include: reactivity control, RCS pressure control, RCS inventory control, decay heat removal and containment.

The linkage between safety function and component is based on insights from the Seabrook PRA and design basis information and is demonstratedin the SWEL Selection document.

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

a. Various types of systems? YN ND-Requirement met.

Remarks: No issues identified during peer review. The SWEL development specifically included components from various types of systems. Specifically, the components represent the major front line and support systems that are consideredimportantfrom a PRA perspective such as injection, heat removal, cooling water, ventilation and power systems. Also included are components associated with spent fuel pool cooling.

b. Major new and replacement equipment? YM NO Requirement met.

Remarks: No issues identified during peer review. SWEL development included a review of new or replacement equipment was performed; this review identified only one component having recent installation;this being the new DG temperature control panel DG-CP-907B.

Other major components have been replaced over the years but with like components (example CCW pump motors) and these are captured in the SWEL.

F-8

Peer Review Checklist for SWEL

c. Various types of equipment? Y Requirement met. N Remarks: No issues identified during the peer review. The SWEL included components from almost all of the suggested equipment types. The only type of equipment not explicitly evaluated was the EAH-AC-2 unit (airhandler/chiller). This component was excluded because the anchoragecould not be completely verified. This not withstanding, no issues were identified during the examination. Overall, the SWEL is comprehensive with regardto examining a variety of different types of components.

d. Various environments? y Requirement met. N Remarks: No issues identified during the peer review. SWEL components were located in many different areas of the plant including containment. Many areas have roughly the same indoor environment, representativeof normal operating conditions with both operatingand standby equipment. These environments arejudged representative of the environments that would be expected during a random seismic event. Also, normal and accident environments arejudged to play a minor role in the adequacyof seismic anchorage.

e. Equipment enhanced based on the findings of the IPEEE (or equivalent) program? Y Requirement met. N Remarks: No issues identified during the peer review. The Seabrook Station IPEEE was independently reviewed during the peer review to confirm that there were no seismic design enhancements recommended or implemented as a result of the external events risk study.

f. Were risk insights considered in the development of SWEL 1? Y Requirement met. N Remarks: No issues identified during the peer review. The SWEL was originallydeveloped from the components list in the Seabrook internal events PRA. This list specifically identifies risk important components. Based on peer review of the SWEL, the SWEL is judged to include a good cross section of risk significantand SC-I components representingthe features importantto both core damage mitigation and release mitigation.

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Page 12 of 12 Peer Review Checklist for SWEL

3. For SWEL 2:

a. Were spent fuel pool related items considered, and if applicable included in SWEL 2? YM NO Requirement met.

Remarks: No issues identified dunng the peer review. Components associatedwith spent fuel pool are specifically included in the SWEL 2 walkdown list. The EPRI screening criteriawere also used in the development of the SFP SWEL 2 list and addressed:seismic category, equipment and system types, sample considerations, and potentialfor rapiddrain down. The SWEL 2 component list representsa good sampling of the major SFP components.

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

Requirement met.

Remarks: No issues identified during the peer review. SWEL 2 component selection processis essentially the same as the SWEL I selection process and is documented in the SWEL selection report.

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

Overall, the SWEL 1 and SWEL 2 component lists are comprehensive and have a reasonablebasis consistent with the ERPI/ industryselection process. The walkdown of SWEL I and SWEL2 components will provide a comprehensive indicationof the overall seismic health status of all Seabrook Station SC-1 systems/components.

5. Have all peer review comments been adequately addressed in the final SWEL? YM NE Peerreview comments (editorialin nature)have been incorporatedinto the SWEL selection document. This did not result in any changes to the SWEL lists themselves.

Peer Reviewer #1. _ _ _ __MW Date: / o Ric Turc Peer Reviewer #2: Bruce-B Date: ///  ?-

Brc Bouton _

Peer Reviewer #3: _ _ - __-_ Date: 'v Tim Cassidy SBK Seismic Walkdown Peer Review Report Rev 00b.docx 11/11/2012.

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