ML13197A222

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

ML13197A222
Person / Time
Site:	Nine Mile Point
Issue date:	07/12/2013
From:	Spina J Constellation Energy Group, Constellation Energy Nuclear Group, EDF Group, Nine Mile Point
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML13197A222 (64)

Text

James A. Spina Office 410-470-5203 SVP - CNG Corporate Site Operations Fax 410-470-6305 E-mail: James.Spina@cengllc.com CENG.,

a joGnt vnture of July 12, 2013 U.S. Nuclear Regulatory Commission 11555 Rockville Pike Rockville, MD 20852 ATTENTION: Document Control Desk

SUBJECT:

Nine Mile Point Nuclear Station, Unit 1 Renewed Facility Operating License No. DPR-63 Docket No. 50-220 Supplemental Response to 10 CFR 50.54(f) Request for Information, Recommendation 2.3, Seismic

REFERENCES:

(a) Letter from E. J. Leeds (NRC) and M. R. Johnson (NRC) to All Power Reactor Licensees and Holders of Construction Permits in Active or Deferred Status, dated March 12, 2012, Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident, ML12073A348 (b) Letter from M. G. Korsnick (CENG) to Document Control Desk (NRC),

dated November 27, 2012, Response to 10 CFR 50.54(f) Request for Information, Recommendation 2.3, Seismic On March 12, 2012, the U.S. Nuclear Regulatory Commission (NRC) issued Reference (a) to all power reactor licensees. The NRC letter requests further information from addressees to support the evaluation of NRC Staff Recommendation 2.3: Seismic from the Near-Term Task Force review of the accident at the Fukushima Dai-ichi nuclear facility.

Reference (b) is the Nine Mile Point Nuclear Station, LLC (NMPNS) Unit 1 (NMP1) response to the request in Reference (a). In that response a regulatory commitment was made to submit an updated walkdown report 60 days after the end of the Spring 2013 refueling outage.

As stated in Attachment 1 of Reference (b), NMPI completed walkdowns for the Seismic Walkdown Equipment List (SWEL) items except for twelve electrical cabinets, including four equipment anchorage verifications. Table E-1 of Reference (b) summarized the remaining components subject to follow-up inspections. This letter satisfies the Regulatory Commitment made in Reference (b) by providing the seismic walkdown results for the follow-up inspections of equipment anchorages and electrical cabinets.

NMP1 has completed its seismic walkdowns requested by Reference (a).

Constellation Energy Nuclear Group, LLC 100 Constellation Way, Suite 200C, Baltimore, MD 21202 A00 N'02-

Document Control Desk July 12, 2013 Page 2 Attachment (1) provides the seismic walkdown results for the follow-up inspections of equipment anchorages and electrical cabinets.

This letter does not contain any regulatory commitments.

If there are any questions regarding this submittal, please contact Everett (Chip) Perkins everett.perkins(&_cenjllc.com at 410-470-3928.

I declare under penalty of perjury that the foregoing is true and correct. Executed on July 12, 2013.

Sincerely, James A. Spina JAS/STD V Attachments (1): Supplemental Seismic Walkdown Report cc: B. K. Vaidya, NRC Resident Inspector, Nine Mile Point M. C. Thadani, NRC N. S. Morgan, NRC W. M. Dean, NRC

ATTACHMENT (1)

SUPPLEMENTAL SEISMIC WALKDOWN REPORT Constellation Energy Nuclear Group, LLC July 12, 2013

SUPPLEMENTAL SEISMIC WALKDOWN REPORT IN RESPONSE TO THE 50.54(f) INFORMATION REQUEST REGARDING FUKUSHIMA NEAR-TERM TASK FORCE RECOMMENDATION 2.3: SEISMIC for the NINE MILE POINT NUCLEAR STATION UNIT I Facility Operating License No. DPR-63 NRC Docket No. 50-220 CONSTELLATION Nine Mile Point Nuclear Station, LLC 348 Lake Road Oswego, NY 13126 Prepared by:

Nine Mile Point Nuclear Station, LLC Engineering Services rr Printed NFme Date Preparer. Michael Conway*.. 2./3 ZjV-Reviewer: Joshua Rocks C/2Ar//q/

Approver: Katherine Picciotto/,2- ,,,/. 2t-)

Peer Review Team Leader: Irineo Ferrer" . /

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Table of Contents List o f T a b les ......................................................................................................... iii Executive Summary ................................................................................................. vi 1 I Introduction ............................................................................................................................. 1-1 1.1 Background ................................................................................................................................ 1-1 1.2 Approach .................................................................................................................................... 1-1 2 PersonnelQualifications........................................................................................................... 2-1 2.1 Overview .................................................................................................................................... 2-1 2.2 W alkdown Personnel ................................................................................................................. 2-1 3 Selection of SSCs ..................................................................................................................... 3-1 3.1 Overview .................................................................................................................................... 3-1 3.2 Selection of Alternate Components ........................................................................................... 3-1 4 Seismic W alkdowns and Area Walk-Bys .................................................................................... 4-1 4.1 Overview .................................................................................................................................... 4-1 4.2 Seismic W alkdowns .................................................................................................................... 4-1 4.3 Area W alk-Bys ............................................................................................................................ 4-2 5 Licensing Basis Evaluations....................................................................................................... 5-1 6 PeerReview ............................................................................................................................. 6-1 6.1 Peer Review Introduction .......................................................................................................... 6-1 6.2 Review of Checklist & Area W alk-bys ........................................................................................ 6-1 6.3 Review of Licensing Basis Evaluations ....................................................................................... 6-3 6.4 Review of Final Submittal Report & Sign-off .............................................................................. 6-3 7 References ............................................................................................................................... 7-1 Appendicies A Project Personnel Resumes and SW E Certificates .................................................................. A-1 B Seismic W alkdown Checklists (SW Cs) .................................................................................... B-1 C Area W alk-By Checklists (AWCs) .......................................................................................... C-1 D SW C's for Supplemental Internal Inspections of Electrical Cabinets ........................................... D-1

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report List of Tables Table 2-1 Personnel Included in NTTF 2.3 Supplemental Walkdown ............................................. 2-1 Table 3-1 Selection of Alternate Components Based on Plant Conditions ....................................... 3-1 Table 6-1 Table of Peer Review Comments for SWC's .............................. .. 6-1 Table 6-2 Table of Peer Review Comments for AW C's ............................................................... 6-2 Table B-1 Summary of Seismic Walkdown Checklists Completed by NMP Personnel ....................... B-1 Table C-1 Sum mary of Area W alk-By Checklists ....................................................................... C-1 iii

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Executive Summary This Supplemental Seismic Walkdown Report documents walkdowns performed at Nine Mile Point Nuclear Station, Unit 1 (NMP1) for components that were not accessible during the initial walkdowns and were not included in the response to 10 CFR 50.54(f) Request for Information, Recommendation 2.3, Seismic (Reference 3). These seismic walkdowns did not identify any adverse seismic conditions that required licensing basis evaluations or evaluation by the Nine Mile Point Nuclear Station Corrective Action Program.

EPRI Technical Report 1025286 (Reference 1) was used to perform the engineering walkdowns and evaluations described in this report. In accordance with Reference 1, the following topics are addressed in the subsequent sections of this report.

" Personnel Qualifications

• Selection of Systems, Structures, and Components (SSCs)

" Seismic Walkdowns and Area Walk-Bys

" Seismic Licensing Basis Evaluations

" Peer Review Personnel Qualifications Personnel qualifications are discussed in Section 2 of this report. The personnel who performed the key activities required to fulfill the objectives and requirements of Reference 2 are qualified and trained as required in EPRI Technical Report 1025286 (Reference 1). These personnel are responsible for:

" Performing the Seismic Walkdowns and Area Walk-Bys

• Performing the seismic licensing basis evaluations, as applicable

" Performing the peer reviews Selection of SSCs Selection of SSCs was completed and documented within Reference 3. This supplemental report documents in Section 3 an alternate component that was selected by the Seismic Walkdown Engineers (SWE) when the original component was determined to be unavailable for inspection due to the component design configuration and physical location. PB-VB1 2 was selected as the alternate component for PB-VB1 1.

Seismic Walkdowns and Area Walk-Bys Section 4 of this report documents the supplemental equipment Seismic Walkdowns and the Area Walk-Bys. The supplemental seismic walkdowns for NMP1 were performed in April and May of 2013 during Refueling Outage N1 R22. The walkdown team consisted of two SWEs, iv

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report both from the station's Design Engineering group. Operations/Maintenance personnel were also available and called upon as needed for reviews and support.

The seismic walkdowns focused on the seismic adequacy of the items on the SWEL. The walkdowns focused on the following:

" Adverse anchorage conditions

" Adverse seismic spatial interactions

" Other adverse seismic conditions (e.g., degradation)

• Supplemental panel internal inspections An Area Walk-By was conducted on Turbine Building 291' elevation during the supplemental seismic walkdowns that encompassed the component in that area. The SWEL item in this area is PB-VB12. The area walk-by was performed to identify potentially adverse seismic conditions associated with other SSCs located within the vicinity of the SWEL items. The key examination factors that were considered in the area walk-by included the following:

• Anchorage conditions (if visible without opening equipment)

" Significantly degraded equipment in the area

• Potential seismic interactions

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

• Potential adverse interactions that could cause flooding/spray and fire in the area

• Miscellaneous other conditions including conformance of temporary installations to general seismic housekeeping procedures The seismic walkdown team walked down twelve deferred components on the NMP1 SWEL 1 list.

During the supplemental walkdowns, there were no adverse seismic conditions identified that challenged the licensing basis for the plant. No Condition Reports were issued as a result of these supplemental walkdowns.

Twelve Seismic Walkdown Checklists (SWC) and one Area Walkdown Checklists (AWC) were completed for the twelve components that were walked down.

Seismic Licensing Basis Evaluations EPRI Technical Report 1025286, Section 5: Seismic Licensing Basis Evaluation provides a detailed process to perform and document seismic licensing basis evaluations of SSCs when potentially adverse seismic conditions are identified during the equipment seismic walkdowns or area walk-bys. The process provides a means to identify, evaluate and document how the identified potentially adverse seismic condition meets a station's seismic licensing basis without entering the condition into a station's Corrective Action Program (CAP). Further, the process directs that if a condition cannot be readily shown to meet the seismic licensing basis, the identified condition should be entered into the station's CAP where it will be determined that the condition does or does not meet the seismic licensing basis.

Constellation Energy Nuclear Group/NMP staff did not need to utilize the process provided in Reference 1 to perform and document seismic licensing bases evaluations of SSCs with a V

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report potentially adverse seismic condition because no adverse conditions or questionable conditions were discovered.

Peer Reviews A peer review team consisting of two qualified individuals was assembled and peer reviews were performed in accordance with EPRI Technical Report 1025286, Section 6: Peer Reviews (Reference 1). The peer review process included the following activities:

• Review of the checklists prepared for the seismic walkdowns and area walk-bys

" Review of licensing basis evaluations, as applicable

" Review of the submittal report

" Provided a summary report of the peer review process in the submittal report Section 6 of this report contains the peer review summary report. The peer review determined that the objectives and requirements of the 50.54(f) letter (Reference 2) are met. Further, the efforts completed and documented within this report are in accordance with Reference 1.

Summary In summary, the supplemental seismic walkdowns have been completed at Nine Mile Point Nuclear Station, Unit 1 in accordance with the NRC-endorsed walkdown methodology. No degraded, nonconforming, or unanalyzed conditions were identified as a result of these supplemental seismic walkdowns.

This report documents completion of all previously deferred Seismic Walkdowns required by Reference 2, for Recommendation 2.3: Seismic, at Nine Mile Point Nuclear Station Unit 1.

vi

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report I

Introduction 1.1 Background In response to the Near-Term Task Force (NTTF) Recommendation 2.3 and Reference 2, seismic walkdowns were performed at NMP1 in accordance with EPRI Technical Report 1025286 (Reference 1). Results of the walkdowns are documented in Reference 3. The walkdown team was unable to inspect some equipment at that time due to plant configuration and accessibility. This supplemental report documents completion of the twelve equipment items that required supplemental internal inspection from Reference 3.

1.2 Approach In accordance with Reference 1, the following topics are addressed in the subsequent sections of this report:

• Personnel Qualifications

• Selection of SSCs

• Seismic Walkdowns and Area Walk-Bys

• Licensing Basis Evaluations

" Peer Review 1-1

Nine Mile Point Nuclear Station Unit I Supplemental Seismic Walkdown Report 2

PersonnelQualifications 2.1 Overview This section of the report identifies the personnel that participated in the supplemental inspections for the NTTF 2.3 seismic walkdown effort. A description of the responsibilities of each seismic walkdown participant's role(s) is provided in Section 2 of Reference 1. Note that for this report, the only roles required were for the walkdown team, licensing basis reviewer, and peer reviewer.

Personnel responsible for equipment selection and IPEEE review are noted in Section 3 of Reference 3.

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

Table 2-1 Seismic Licensing Walkdown Basis Peer Personnel Role Engineer Reviewer Reviewer Mr. Joshua Rocks X X Mr. Jeff Park X X Mr. Irineo Ferrer X()

Mr. Joseph Mattera X Note 1: Peer Review Team Leader The following include a short synopsis of each individual's qualifications.

Joshua Rocks Mr. Rocks is an engineer for the Nine Mile Point Nuclear Station (NMPNS) design engineering department, working in the civil structural group. Mr. Rocks has a BS and MS in Civil Engineering from the University at Buffalo, The State University of New York, and has completed the NTTF 2.3 Seismic Walkdown training course.

Jeff Park Mr. Park is an engineer for the Nine Mile Point Nuclear Station (NMPNS) design engineering department, working in the civil structural group. Mr. Park has a BS in General Engineering from the US Military Academy, MS in Civil Engineering from the University of Arizona, Tucson, and is a SQUG Certified Engineer.

2-1

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Irineo (Randy) Ferrer Mr. Ferrer is a mechanical design engineer for the Nine Mile Point Nuclear Station (NMPNS) with over 30 years of experience related to design, construction and testing of plant equipment/systems and is involved in supporting the Fukushima NTTF recommendations. Mr. Ferrer has a BS in Nuclear Science from Virginia Polytechnic Institute and State University, and is a registered Professional Engineer in New York State.

Joseph Mattera Mr. Mattera is a structural engineer supporting the Nine Mile Point Nuclear Station (NMPNS)

Fukushima Response Team Project in NTTF Recommendation 2.1 Seismic with over 30 years of civil structural experience. Mr. Mattera has a BS in Civil Engineering from Wentworth Institute of Technology and has over 20 years of experience in the nuclear industry as a Structural Engineer with experience in the design of Category 1 structures and ASME Section III Class 1 piping supports. Mr. Mattera also has over 10 years of experience in building structures with the petro-chemical and fossil fuel power plant industry.

2-2

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report 3

Selection of SSCs 3.1 Overview Section 4.0 of Reference 3 details the selection methodology utilized for this report and SWEL development. Selection of SSC's is outside the scope of work performed within this report.

3.2 Selection of Alternate Components One originally selected component could not be inspected due to accessibility issues. In this case, the walkdown team inspected an alternate component (same equipment class) credited with performing the same function. The substitution of components due to equipment access conditions was discussed with the peer review team during the preparation of Section 4.0 of Reference 3. Table 3-1 provides an evaluation of the original NMP1 SWEL 1 component against the alternate component.

The alternate component was selected based upon similarity in class and function, from Reference 3, Appendix B, Table B-1 NMP Unit 1 Base List.

Table 3-1 Selection of Alternate Components Based on Plant Conditions Equipment Original SWELl Alternate Class Component Component Basis For Change Evaluation PB-VB11 is Acceptable:

physically located ocaed phyicaly PB-VB12 has the same equipment buildingto class (20) and PB-VB1 1, POWER PB-VB12, wall and aaccess against cas(0 n BOARD BORD-525VCP

- 125VDC POWER VOALVE E BOARD andhraes toud 4safety anhraewol wall & 5) as PB-VB11.

functions (3, 20 VALVE BOARD 11 125VDC VALVE require panel Its configuration BOARD 12 disassembly in allows full order to accomplish accessibility for inspections, seismic inspections.

3-1

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report 4

Seismic Walkdowns and Area Walk-Bys 4.1 Overview Twelve plant component seismic walkdowns were conducted in April and May 2013 during the NI R22 refueling outage. All inspections were performed by two-person teams of trained Seismic Walkdown Engineers in accordance with Reference 1. The seismic walkdowns and area walk-bys are discussed in more detail in the following sections.

4.2 Seismic Walkdowns The components included in the seismic walkdowns are shown on the NMP1 SWEL 1 in Appendix B of Reference 3. A Seismic Walkdown Checklist (SWC) from Appendix C of Reference 1 was completed for each item on the SWEL. Additionally, photos are included with SWCs to provide a visual record of the walkdowns and are included in Appendix B. The list of equipment was subject to supplemental internal inspections because they were not opened during initial Walkdowns performed in 2012. These are cabinets with doors or panels with latches or thumbscrews that can readily be opened during normal maintenance activities.

Internal inspections for these cabinets were completed.

4.2.1 Anchorage Configuration Confirmation There were 65 equipment items in the combined SWELl and SWEL2 lists in Reference 3 that were eligible for anchorage configuration confirmations. Of the 41 equipment items chosen to have anchorage configuration confirmations performed only 39 had been completed. This report documents completion of the remaining 2 anchorage configuration confirmations. As required by Reference 1 (page 4-3), 50% of the items eligible were confirmed to have anchorage configurations consistent with plant documentation. Completion of 41 anchorage configuration confirmations of the 65 eligible exceeds the 50% requirement at 63% satisfying the requirement. Appendix B, Table B-1 indicates the anchorage configuration confirmation status for components as follows:

Y: components anchored to the civil structures that were confirmed to be consistent with plant configuration documentation.

N: components for which anchorage drawings were not designated for retrieval because they were not included in the 50% sample Or they did not have specific anchorage associated with them because they were in-line equipment items.

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. It is noted that Reference I includes Question 6 on the SWC's which asks, "Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?" and only provides for a Yes, No or Unknown answer choice. The answer for question 6 is therefore given a "Yes" when the answers to question I is "No" and questions 2 to 5 are either "N/A" or "Yes" on the check list.

4-1

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report 4.2.2 Issues Identification during Seismic Walkdowns There were no issues identified by the SWEs during the equipment walkdowns.

4.3 Area Walk-Bys In accordance with Reference 1, an Area Walk-by Checklist (AWC) was performed for each room or area within a large room (35 foot radius) which included one or more items on the SWEL. Completed AWCs are included in Appendix C. These walk-bys include overhead areas and other equipment items not on the SWELs in the area. One AWC was completed for NMP1 during this supplemental walkdown.

4.3.1 Issue Identification during Area Walk-bys No anomalies or issues were identified by the SWEs during the area walk-bys.

4-2

Nine Mile Point Nuclear Station Unit I Supplemental Seismic Walkdown Report 5

Licensing Basis Evaluations There were no issues identified during the supplemental seismic walkdowns and area walk-bys determined to be a "Potentially Adverse Seismic Condition" that could have potentially challenged the site's licensing basis.

5-1

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report 6

Peer Review

6. 1 Peer Review Introduction The peer review was performed in accordance with Reference 1. The scope of the Peer Review was limited to the following activities, as the SWEL development process has already been peer reviewed by the original peer review team:

• Observation of inspection activities conducted

• Review of all the checklists completed for the Seismic Walkdowns and Area Walk-Bys

" Review of the final submittal report

" The inclusion of a summary of the peer review process in the submittal report 6.2 Review of Checklist and Area Walk-bys 6.2.1 Walkdown Review and Review of Checklists Mr. Irineo Ferrer and Mr. Joseph Mattera completed a peer review of all SWC's and AWC's completed by the SWE walkdown team.

Observations of the seismic inspection activities performed by the SWE team were conducted by Mr. Ferrer and Mr. Mattera in order to ascertain the quality and validate adherence to the Seismic Walkdown Guidance (Reference 1). Mr. Ferrer observed -75% of the field inspections and Mr. Mattera observed 100% of the field inspections. Peer reviewer observations/comments are documented in Table 6-1 and Table 6-2.

Table 6-1 Table of Peer Review Comments for SWC's SWEL 1 COMP ID Item # Description Location ObservationslComments Based on observation of inspection activities 600V Power Board performed, checklist PB-161B 4 161B RB 261' responses are appropriate.

Based on observation of inspection activities 600V Power Board performed, checklist PB-167 5 including all cubicles RB 281' responses are appropriate.

6-1

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Table 6-1 Table of Peer Review Comments for SWC's SWEL 1 COMP ID Item # Description Location Observations/Comments Based on observation of inspection activities performed, checklist PB-16B 6 600V Power Board 16B RB 281' responses are appropriate.

Based on observation of inspection activities performed, checklist PB-102 7 Power Board 102 TB 261' responses are appropriate.

Based on observation of inspection activities UPS162 Manual performed, checklist PNL-MTS162 64 Transfer Switch Panel TB 277' responses are appropriate.

Based on observation of inspection activities 125VDC Battery Board performed, checklist PB-BB1 1 65 11 TB 261' responses are appropriate.

Based on observation of inspection activities TRS- Transfer Switch for PB performed, checklist (167)ASCO 67 167 RB 281' responses are appropriate.

Based on observation of inspection activities Static battery charger performed, checklist BC-B11-1 70 161A TB 261' responses are appropriate.

Based on observation of inspection activities UPS- performed, checklist UPS162A 71 UPS 162A TB 277' responses are appropriate.

Based on observation of Power Board - 125VDC inspection activities Valve Board 12 performed, checklist PB-VB12 73 (substituted for PB-VB1 1) TB 291' responses are appropriate.

6-2

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Table 6-1 Table of Peer Review Comments for SWC's SWEL I COMP ID Item # Description Location ObservationslComments Based on observation of inspection activities MG Set 167 Control performed, checklist PNL-CP167 79 Panel TB 277' responses are appropriate.

Based on observation of PNL-C02 inspection activities (CARDOX CARDOX Cabinet DG performed, checklist CAB DG 102) 91 102 Room TB 261' responses are appropriate.

Table 6-2 Table of Peer Review Comments for AWC's Area # Area Walkdown Description Location ObservationslComments Turbine Building - North Based on interview and pictures 32 Rows H - J, Columns 6 - TB 291' provided, checklist responses are 7, near PB-VB12 appropriate.

6.2.2 Evaluation of Findings No issues were identified during the peer review.

6.3 Review of Licensing Basis Evaluations 6.3.1 Overview of Licensing Basis Evaluations Because there are no issues identified during the seismic walkdowns or area walk-bys, no formal licensing basis evaluations were required.

6.3.2 Insights and Recommendations None 6.4 Review of Final Submittal Report and Sign-off The supplemental inspection report has been reviewed by Mr. Irineo Ferrer and Mr. Mattera.

The report was found to meet the requirements of Reference 1.

6-3

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report 7

References

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

2. Letter from E. J. Leeds (NRC) and M. R. Johnson (NRC) to All Power Reactor Licensees and Holders of Construction Permits in Active or Deferred Status, dated March 12, 2012, Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f)

Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident

3. Letter from M. G. Korsnick (CENG) to Document Control Desk (NRC) dated November 27, 2012, Response to 10 CFR 50.54(f) Request for Information, Recommendation 2.3, Seismic 7-1

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report A

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Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report B Seismic Walkdown Checklists (SWCs)

Table B-1. Summary of Seismic Walkdown Checklists Completed by NMP Personnel SWEL Anchorage COMPONENT ID Item # DESCRIPTION Verification PAGE tmConfirmed?

SWELl Items PB-161B 4 600V Power Board 161B N B-2 PB-167 5 600V Power Board including all N B-5 cubicles PB-16B (Note 1, 2) 6 600V Power Board 16B Y B-8 PB-102 (Note 1,2) 7 Power Board 102 Y B-11 PNL-MTS162 64 UPS162 Manual Transfer Switch N B-14 Panel PB-BB11 (Note 1) 65 125VDC Battery Board 11 N B-17 TRS-(167)ASCO 67 Transfer Switch for PB 167 N B-20 BC-B11-1 70 Static battery charger 161A N B-23 UPS-UPS162A 71 UPS 162A N B-26 PB-VB12 (Note 1) 73 Power Board - 125VDC Valve Board N B-29 12 (substituted for PB-VB1 1)

PNL-CP167 79 MG Set 167 Control Panel N B-32 PNL-C02 (CARDOX CAB DG 91 CARDOX Cabinet DG 102 Room N B-35 102)

Notes:

1) Anchorage verification inspection performed during this supplementary walkdown.

2) Anchorage configuration confirmation performed during this supplementary walkdown.

B-1

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: rY7 N U Seismic Walkdown Checklist (SWC)

EquipmentID No.: PB-161B Equipment Class: (1) Motor Control Centers Equipment

Description:

600V POWER BOARD 161B Project: Nine Mile 1 SWEL Location (Bldg, Elev, Room/Area): RB, 261.00 ft, ALL Manufacturer/Model:

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

General Checklist Notes:

1. Anchorage and seismic interactioninspections were performed during initial NTTF 2.3 Seismic Walkdowns. Initialwalkdown results are available in the initial Seismic Walkdown Report "Nine Mile Point Nuclear Station, Unit I Response to 10 CFR 50.54(o Request for Information. Recommendation 2.3.

Seismic". Therefore, questions pertainingto anchorageand seismic interactionare marked N/A in this checklist.

2. Findings from supplemental inspection of cabinet internals per WO C92057481 are documented in the comments section of this checklist.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% Not Applicable of SWEL items requiring such verification)?

See "GeneralChecklist Note 1." above.

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable See "GeneralChecklist Note 1." above.

3. Is the anchorage free of corrosion that is more than mild surface oxidation? Not Applicable See "GeneralChecklist Note 1." above.

4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1." above.

6. Based on the above anchorage evaluations, is the anchorage free of Not Applicable potentially adverse seismic conditions?

See "GeneralChecklist Note 1." above.

B-2

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: MN U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PB-161B Equipment Class: (1) Motor Control Centers Equipment

Description:

600V POWER BOARD 161 B Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Not Applicable See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1."above.

9. Do attached lines have adequate flexibility to avoid damage? Not Applicable See "GeneralChecklist Note 1." above.

10. Based on the above seismic interaction evaluations, is equipment free of Not Applicable potentially adverse seismic interaction effects?

See "GeneralChecklist Note 1." above.

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Not Applicable adversely affect the safety functions of the equipment?

See "GeneralChecklist Note 1." above.

Comments See "GeneralChecklist Note 2." above.

Supplemental internal inspection was performed on 4/22/2013 per WO C92057481. No adverse conditions were identified. All internal components appear to be mounted adequately.

Josh Rocks Evaluated by: Date: 06/14/13 Jeff Park J~

06/14/13 B-3

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: F] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PB-161B Equipment Class: (1) Motor Control Centers Equipment

Description:

600V POWER BOARD 161 B Photo Typical PB-161B Internal Components B-4

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: Y N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PB-167 Equipment Class: (1) Motor Control Centers Equipment

Description:

600V POWER BOARD INCLUDING ALL CUBICLES Project: Nine Mile 1 SWEL Location (Bldg, Elev, Room/Area): RB, 281.00 ft. ALL Manufacturer/Model:

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

GeneralChecklist Notes:

1. Anchorage and seismic interaction inspections were performed during initial NTTF 2.3 Seismic Walkdowns. Initial walkdown results are available in the initial Seismic Walkdown Report "Nine Mile Point Nuclear Station, Unit I Response to 10 CFR 50.54(o Request for Information. Recommendation 2.3.

Seismic". Therefore, questions pertaining to anchorage and seismic interaction are marked N/A in this checklist.

2. Findings from supplementalinspection of cabinet internalsper WO C92057482 are documented in the comments section of this checklist.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% Not Applicable of SWEL items requiring such verification)?

See "General Checklist Note 1. " above.

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable See "General Checklist Note 1." above.

3. Is the anchorage free of corrosion that is more than mild surface oxidation? Not Applicable See "GeneralChecklist Note 1." above.

4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable See "GeneralChecklist Note 1." above.

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.)

See "General Checklist Note 1." above.

6. Based on the above anchorage evaluations, is the anchorage free of Not Applicable potentially adverse seismic conditions?

B-5

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: [] N U Seismic Walkdown Checklist (SWC)

EquipmentID No.: PB-167 Equipment Class: (1) Motor Control Centers Equipment

Description:

600V POWER BOARD INCLUDING ALL CUBICLES See "GeneralChecklist Note 1." above.

Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Not Applicable See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1." above.

9. Do attached lines have adequate flexibility to avoid damage? Not Applicable See "GeneralChecklist Note 1." above.

10. Based on the above seismic interaction evaluations, is equipment free of Not Applicable potentially adverse seismic interaction effects?

See "GeneralChecklist Note 1." above.

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Not Applicable adversely affect the safety functions of the equipment?

See "GeneralChecklist Note 1."above.

Comments See "GeneralChecklist Note 2."above.

Supplemental internal inspection was performed on 4/24/2013 per WO C92057482. No adverse conditions were identified. All internal components appear to be mounted adequately.

Evaluated by: c CJ-" Date: 06/14/13 Jeff Park 606/14/13 B-6

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: M N U Seismic Walkdown Chockllt (SWC)

Equipment ID No.: PB-167 Equipment Class: (1) Motor Control Centers Equipment

Description:

600V POWER BOARD INCLUDING ALL CUBICLES Photos PB-167 Typical Internal Component B-7

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: F N U Seismic Walkdown Checklist (SWC)

EquipmentID No.: PB-16B Equipment Class: (2) Low Voltage Switchgear Equipment

Description:

600V POWER BOARD 16B Project: Nine Mile 1 SWEL Location (Bldg, Elev, Room/Area): RB, 281.00 ft, ALL Manufacturer/Model:

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

GeneralChecklist Notes:

1. In response to CR-2012-008095, this walkdown checklist for PB-16B, is supplemental to that from "Nine Mile Point NuclearStation, Unit I Response to 10 CFR 50.54(0 Request for Information.

Recommendation 2.3. Seismic" Updated information documented in this checklist for PB-16B is based on supplemental internalinspections completed on 4/2412013 per WO C91993648.

2. Seismic interactioninspections were performed during initial NTTF 2.3 Seismic Walkdowns. Initial walkdown results are availablein the initial Seismic Walkdown Report "Nine Mile Point Nuclear Station, Unit I Response to 10 CFR 50.54(o Request for Information. Recommendation 2.3. Seismic". Therefore, questions pertaining to seismic interactionare marked N/A in this checklist

3. Findings from the supplemental inspection of the cabinet internals per WO C91993648 are documented in the comments section of this checklist.

Anchoraae

1. Is anchorage configuration verification required (i.e., is the item one of the 50% Yes of SWEL items requiring such verification)?

See "GeneralChecklist Note 1." above.

NMP1 DWG C15139C SH3 &CALC S6RB 281 PB16A This response and information is consistent with that of "Nine Mile Point Nuclear Station, Unit I Response to 10 CFR 50.54() Request for Information.

Recommendation 2.3. Seismic".

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable See "GeneralChecklist Note 1."above.

N/A justification: Anchorage consists of plug and fillet welds.

3. Is the anchorage free of corrosion that is more than mild surface oxidation? Yes See "GeneralChecklist Note 1." above.

Field anchorageis free of adverse corrosionconditions

4. Is the anchorage free of visible cracks in the concrete near the anchors? Yes See "GeneralChecklist Note 1." above.

Concrete is free of visible cracks near the anchorage

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

See "GeneralChecklist Note 1." above.

Anchorage is consistent with plant documentation.

B-8

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: F-I N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PB-16B Equipment Class: (2) Low Voltage Switchgear Equipment

Description:

600V POWER BOARD 16B Yes

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

See "GeneralChecklist Note 1. "above.

Anchorage is free of potentially adverse seismic conditions.

Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Not Applicable See "GeneralChecklist Note 2." above.

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

See "GeneralChecklist Note 2." above.

9. Do attached lines have adequate flexibility to avoid damage? Not Applicable See "GeneralChecklist Note 2." above.

10. Based on the above seismic interaction evaluations, is equipment free of Not Applicable potentially adverse seismic interaction effects?

See "GeneralChecklist Note 2. "above.

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Not Applicable adversely affect the safety functions of the equipment?

See "GeneralChecklist Note 2." above.

Comments See "GeneralChecklist Note 3." above.

Supplemental internal inspection was completed on 4/24/2013 per WO C91993648. No adverse conditions were identified. All internal components appear to be mounted adequately.

Josh Rocks Evaluated by: Date: 06/14113 Jeff Park 06/14/13 B-9

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: M N U Seismic Wmlkdown Checklist (SWC)

Equipment ID No.: PB-16B Equipment Class: (2) Low Voltage Switchgear Equipment

Description:

600V POWER BOARD 16B Typical Front of PB-16B Anchorage: Plug Welds in Each Cubicle B-I0

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: V N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PB-102 Equipment Class: (3) Medium Voltage Switchgear Equipment

Description:

Power Board 102 Project: Nine Mile 1 SWEL Location (Bldg, Elev, Room/Area): TB, 261.00 ft, ALL Manufacturer/Model:

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

General Checklist Notes:

1. In response to CR-2012-008072, this walkdown checklist for PB-102, is supplemental to that from "Nine Mile Point Nuclear Station, Unit I Response to 10 CFR 50.54(0 Request for Information.

Recommendation 2.3. Seismic". Updated information documented in this checklist for PB-102 is based on supplemental internalinspections performed on 4124/2013 per WO C91985948.

2. Seismic interactioninspections were performed during initial NTTF 2.3 Seismic Walkdowns. Initial walkdown results are available in the initial Seismic Walkdown Report "Nine Mile Point Nuclear Station, Unit I Response to 10 CFR 50.54(0 Request for Information. Recommendation 2.3. Seismic".

Therefore, questions pertaining to seismic interaction are marked N/A in this checklist.

3. Findings from the supplemental inspection of the cabinet internals per WO C91985948are documented in the comments section of this checklist.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% Yes of SWEL items requiring such verification)?

See "GeneralChecklist Note 1." above.

NMP1 DWG C18500C Sh2 Rev. 4, Calculation STB 261 PB102 & 1S00021D This response and information is consistent with that of "Nine Mile Point Nuclear Station, Unit I Response to 10 CFR 50.54(0 Request for Information.

Recommendation 2.3. Seismic".

2. Is the anchorage free of bent, broken, missing or loose hardware? Yes See "GeneralChecklist Note 1." above.

Field anchorageis free of bent, broken or missing hardware.

3. Is the anchorage free of corrosion that is more than mild surface oxidation? Yes See "GeneralChecklist Note 1." above.

Field anchorageis free of adverse corrosionconditions.

4. Is the anchorage free of visible cracks in the concrete near the anchors? Yes See "GeneralChecklist Note 1." above.

Concrete is free of visible cracks nearthe anchorage.

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

See "GeneralChecklist Note 1." above.

Anchorage is consistent with plant documentation.

B-11

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: [* N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PB-102 Equipment Class: (3) Medium Voltage Switchgear Equipment

Description:

Power Board 102

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

See "GeneralChecklist Note 1." above.

Anchorage is free of potentially adverse seismic conditions.

Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Not Applicable See "General Checklist Note 2." above.

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

See "GeneralChecklist Note 2." above.

9. Do attached lines have adequate flexibility to avoid damage? Not Applicable See "GeneralChecklist Note 2. "above.

10. Based on the above seismic interaction evaluations, is equipment free of Not Applicable potentially adverse seismic interaction effects?

See "GeneralChecklist Note 2." above.

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Not Applicable adversely affect the safety functions of the equipment?

See "GeneralChecklist Note 2.V"above.

Comments See "General Checklist Note 3." above.

A supplemental internal inspections was performed on 4/24/2013 per WO C91985948. No adverse conditions were identified. All internal components appear to be mounted adequately.

Josh Rocks Evaluated by: Date: 06/14/13 Jeff Park 06/14/13 B-12

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: L-Y N U Seismic Walkdown Checklist (SWC)

EquipmentlD No.: PB-102 Equipment Class: (3) Medium Voltage Switchgear Equipment

Description:

Power Board 102 Photo*

Typical PB-1 02 Front Anchorage B-1 3

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PNL-MTS162 Equipment Class: (14) Distribution Panels Equipment

Description:

UPS162 Manual Transfer Switch Panel Project: Nine Mile 1 SWEL Location (Bldg, Elev, Room/Area): TB, 277.00 ft, ALL Manufacturer/Model:

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

GeneralChecklist Notes:

1. Anchorage and seismic interactioninspections were performed during initial NTTF 2.3 Seismic Walkdowns. Initial walkdown results are available in the initial Seismic Walkdown Report "Nine Mile Point Nuclear Station, Unit I Response to 10 CFR 50.54(f Request for Information. Recommendation 2.3. Seismic" Therefore, questions pertainingto anchorageand seismic interactionare marked N/A in this checklist.

2. Findingsfrom the supplemental inspection of the cabinet internalsper WO C92057485 are documented in the comments section of this checklist.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% Not Applicable of SWEL items requiring such verification)?

See "GeneralChecklist Note 1." above.

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable See "GeneralChecklist Note 1." above.

3. Is the anchorage free of corrosion that is more than mild surface oxidation? Not Applicable See "GeneralChecklist Note 1." above.

4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1." above.

6. Based on the above anchorage evaluations, is the anchorage free of Not Applicable potentially adverse seismic conditions?

B-14

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: *'] N U Seismic Walkdown Checklist (SWC)

Equipment 1D No.: PNL-MTS162 Equipment Class: (14) Distribution Panels Equipment

Description:

UPS162 Manual Transfer Switch Panel See "GeneralChecklist Note 1." above.

Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Not Applicable See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1." above.

9. Do attached lines have adequate flexibility to avoid damage? Not Applicable See "GeneralChecklist Note 1." above.

10. Based on the above seismic interaction evaluations, is equipment free of Not Applicable potentially adverse seismic interaction effects?

See "GeneralChecklist Note 1." above.

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Not Applicable adversely affect the safety functions of the equipment?

See "GeneralChecklist Note 1." above.

Comments:

See "General Checklist Note 2." above.

Supplemental internal inspection was performed on 4/2012013 per WO C92057485. No adverse conditions were identified. All internal components appear to be mounted adequately.

Josh Rocks ,,*

Evaluated by: Josh Date: 6/14/2013 Jeff Park 6/14/2013 B-I 5

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Seismic Walkdown Checklist (SWC)

Status: [Fl N U Equipment ID No.: PNL-MTS162 Equipment Class: (14) Distribution Panels Equipment

Description:

UPS162 Manual Transfer Switch Panel Photo*

Internal of PNL-MTS162 B-16

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: M N U Seismic Walkdown Checklist (SWC)

EquipmentlD No.: PB-BB11 Equipment Class: (14) Distribution Panels Equipment

Description:

AP/125 V DC BATTERY BOARD #11 Project: Nine Mile 1 SWEL Location (Bldg, Elev, Room/Area): TB, 261.00 ft, ALL Manufacturer/Model:

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

GeneralChecklistNote:

1. In response to CR-2012-008647, this walkdown checklist for PB-BB 11 is supplemental to that from "Nine Mile Point Nuclear Station, Unit I Response to 10 CFR 50.54(f) Request for Information.

Recommendation 2.3. Seismic". Updated information documented in this checklist for PB-BB1 I is based on supplemental internalinspections performed on 4/22/2013 per WO C92025346.

2. Seismic interaction inspections were performed during initial NTTF 2.3 Seismic Walkdowns. Initial walkdown results are available in the initial Seismic Walkdown Report "Nine Mile Point Nuclear Station, Unit I Response to 10 CFR 50.54(o Request for Information. Recommendation 2.3. Seismic". Therefore, questions pertainingto seismic interaction are marked N/A in this checklist.

3. Findings from the supplemental inspection of the cabinet internals per WO C92025346 are documented in the comments section of this checklist.

Anchorage

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

See "GeneralChecklist Note 1." above.

This response is consistent with that of "Nine Mile Point Nuclear Station, Unit 1 Response to 10 CFR 50.54(o Request for Information.Recommendation 2.3. Seismic".

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable See "GeneralChecklist Note 1." above.

N/A justification:Anchorage consists of welds.

3. Is the anchorage free of corrosion that is more than mild surface oxidation? Yes See "GeneralChecklist Note 1." above.

Field anchorageis free of adverse corrosion conditions.

4. Is the anchorage free of visible cracks in the concrete near the anchors? Yes See "General Checklist Note 1." above.

Concrete is free of visible cracks near the anchorage.

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

See "GeneralChecklist Note 1." above.

N/A justification: Item is not one of the 50% of SWEL items requiring configuration verification.

B-17

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: M N U Seismic Walkdown Checklist (SWC)

EquipmentlD No.: PB-BB11 Equipment Class: (14) Distribution Panels Equipment

Description:

AP/125 V DC BATTERY BOARD #11

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

See "GeneralChecklist Note 1."above.

Anchorage is free of potentially adverse seismic conditions.

Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Not Applicable See "GeneralChecklist Note 2." above.

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

See "GeneralChecklist Note 2." above.

9. Do attached lines have adequate flexibility to avoid damage? Not Applicable See "GeneralChecklist Note 2." above.

10. Based on the above seismic interaction evaluations, is equipment free of Not Applicable potentially adverse seismic interaction effects?

See "General Checklist Note 2." above.

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Not Applicable adversely affect the safety functions of the equipment?

See "GeneralChecklist Note 2." above.

Comments See "GeneralChecklist Note 3." above.

Supplemental internal inspection was performed on 4122/2013 per WO C92025346. No adverse conditions were identified. All internal components appear to be mounted adequately.

Josh Rocks * **

Evaluated by: Josh Date: 06/14/13 Jeff Park -

06/14/13 B-18

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: [MY] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PB-BB1 1 Equipment Class: (14) Distribution Panels Equipment

Description:

AP/125 V DC BATTERY BOARD #11 Typical Internal Anchorage of PB-BB11 B-1 9

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: F1 N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: TRS-(167)ASCO Equipment Class: (14) Distribution Panels Equipment

Description:

Transfer Switch for PB 167 Project: Nine Mile 1 SWEL Location (Bldg, Elev, Room/Area): RB, 281.00 ft, ALL Manufacturer/Model:

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

GeneralChecklist Notes:

1. Anchorage and seismic interaction inspections were performed during initial NTTF 2.3 Seismic Walkdowns. Initial walkdown results are available in the initial Seismic Walkdown Report "Nine Mile Point Nuclear Station, Unit I Response to 10 CFR 50.54(f Request for Information. Recommendation 2.3. Seismic". Therefore, questions pertaining to anchorageand seismic interactionare marked N/A in this checklist.

2. Findingsfrom the supplemental inspection of the cabinet internalsper WO C92057486 are documented in the comments section of this checklist.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% Not Applicable of SWEL items requiring such verification)?

See "General Checklist Note 1." above.

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable See "GeneralChecklist Note 1." above.

3. Is the anchorage free of corrosion that is more than mild surface oxidation? Not Applicable See "GeneralChecklist Note 1." above.

4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1." above.

6. Based on the above anchorage evaluations, is the anchorage free of Not Applicable potentially adverse seismic conditions?

See "GeneralChecklist Note 1." above.

B-20

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: M N U Seismic Walkdown Checklist (SWC)

EquipmentlD No.: TRS-(167)ASCO Equipment Class: (14) Distribution Panels Equipment

Description:

Transfer Switch for PB 167 Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Not Applicable See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1. "above.

9. Do attached lines have adequate flexibility to avoid damage? Not Applicable See "GeneralChecklist Note 1. "above.

10. Based on the above seismic interaction evaluations, is equipment free of Not Applicable potentially adverse seismic interaction effects?

See "GeneralChecklist Note 1." above.

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Not Applicable adversely affect the safety functions of the equipment?

See "GeneralChecklist Note 1." above.

Comments:

See "General Checklist Note 2." above.

Supplemental internal inspection was performed on 4/24/2013 per WO C92057486. No adverse conditions were identified. All internal components appear to be mounted adequately.

Josh Rocks * *,

Evaluated by: Josh Date: 6/14/2013 Jeff 6/14/2013 B-21

Nine Mile Point Nuclear Station Unit I Supplemental Seismic Walkdown Report Status: [* N U (SWC)

Seismic Walkdown Checklist Equipment ID No.: TRS-(167)ASCO Equipment Class: (14) Distribution Panels Equipment

Description:

Transfer Switch for PB 167 Internal to TRS (167) ASCO B-22

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: f'T N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: BC-B11-1 Equipment Class: (16) Inverters Equipment

Description:

Static battery charger 161A Project: Nine Mile 1 SWEL Location (Bldg, Elev, Room/Area): TB, 261.00 ft, ALL Manufacturer/Model:

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

GeneralChecklist Notes:

1. Anchorage and seismic interactioninspections were performed during initial NTTF 2.3 Seismic Walkdowns. Initialwalkdown results are available in the initialSeismic Walkdown Report "Nine Mile Point NuclearStation, Unit I Response to 10 CFR 50.54(o Request for Information. Recommendation 2.3. Seismic"' Therefore, questions pertaining to anchorageand seismic interaction are marked N/A in this checklist.

2. Findings from supplemental inspection of cabinetinternals per WO C92057457 are documented in the comments section of this checklist.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% Not Applicable of SWEL items requiring such verification)?

See "GeneralChecklist Note 1." above.

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable See "GeneralChecklist Note 1." above.

3. Is the anchorage free of corrosion that is more than mild surface oxidation? Not Applicable See "General Checklist Note 1."above.

4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1." above.

6. Based on the above anchorage evaluations, is the anchorage free of Not Applicable potentially adverse seismic conditions?

See "GeneralChecklist Note 1."above.

B-23

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: Mj N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: BC-B1I1-1 Equipment Class: (16) Inverters Equipment

Description:

Static battery charger 161A Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Not Applicable See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1." above.

9. Do attached lines have adequate flexibility to avoid damage? Not Applicable See "GeneralChecklist Note 1." above.

10. Based on the above seismic interaction evaluations, is equipment free of Not Applicable potentially adverse seismic interaction effects?

See 'General Checklist Note 1." above.

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Not Applicable adversely affect the safety functions of the equipment?

See "GeneralChecklist Note 1." above.

Comments:

See "GeneralChecklist Note 2." above.

Supplemental internal inspection was performed on 4/2212013 per WO C92057457. No adverse conditions were identified. All internal components appear to be mounted adequately.

Evaluated by: J-osh Rocs Date: 6/14/2013 Je ff P a rk .. -4/2 611 S6/14/2013 B-24

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: [Y] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: BC-B11-1 Equipment Class: (16) Inverters Equipment

Description:

Static battery charger 161A Photos Internal of Upper BC-B 11-1 Internal of Lower BC-B1 t-1 B-25

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: r N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: UPS-UPS162A Equipment Class: (16) Inverters Equipment

Description:

UPS 162A Project: Nine Mile 1 SWEL Location (Bldg, Elev, Room/Area): TB, 277,00 ft, ALL Manufacturer/Model:

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

GeneralChecklist Notes:

1) Anchorage and seismic interaction inspections were performed during initial NTTF 2.3 Seismic Walkdowns. Initial walkdown results are available in the initialSeismic Walkdown Report "Nine Mile PointNuclear Station, Unit 1 Response to 10 CFR 50.54(0 Request for Information. Recommendation 2.3. Seismic". Therefore, questions pertaining to anchorage and seismic interactionare marked N/A in this checklist.

2) Findings from the supplementalinspection of the cabinetinternalsper WO C92057487 are documented in the comments section of this checklist.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% Not Applicable of SWEL items requiring such verification)?

See "GeneralChecklist Note 1." above.

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable See "GeneralChecklist Note 1." above.

3. Is the anchorage free of corrosion that is more than mild surface oxidation? Not Applicable See "GeneralChecklist Note 1." above.

4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable See "General Checklist Note 1." above.

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

See "GeneralChecklist Note 1."above.

6. Based on the above anchorage evaluations, is the anchorage free of Not Applicable potentially adverse seismic conditions?

See "GeneralChecklist Note 1." above.

B-26

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: UPS-UPS162A Equipment Class: (16) Inverters Equipment

Description:

UPS 162A Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Not Applicable See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1."above.

9. Do attached lines have adequate flexibility to avoid damage? Not Applicable See "GeneralChecklist Note 1." above.

10. Based on the above seismic interaction evaluations, is equipment free of Not Applicable potentially adverse seismic interaction effects?

See "General Checklist Note 1." above.

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Not Applicable adversely affect the safety functions of the equipment?

See "GeneralChecklist Note 1." above.

Comments:

See "GeneralChecklist Note 2." above.

Supplemental internal inspection was performed on 4/22/2013 per WO C92057487. No adverse conditions were identified. All internal components appear to be mounted adequately.

Josh Rocks .

Evaluated by: Jos Date: 6/14/2013 J e ff P a rk 6/ 14/ 2 013

___ ____ ___ ____ ___ ___6/14/2013 B-27

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: *] N U Seismic Walkdown Checklist (SWC)

EquipmentID No.: UPS-UPS162A Equipment Class: (16) Inverters Equipment

Description:

UPS 162A Photos Internal of UPS-UPS162A B-28

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: M N U Seismic Walkdown Checklist (SWC)

EquipmentID No.: PB-VB12 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

POWER BOARD - 125VDC VALVE BOARD 12 Project: Nine Mile 1 SWEL Location (Bldg, Elev, Room/Area): TB, 291.00 ft, ALL Manufacturer/Model:

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

General Checklist Note:

1. In response to CR-2012-009563, PB-VB 12 replaced PB-VB 11 on the SWEL due to inaccessibilityof anchorageof PB-VB 11. This walkdown checklist for PB-VB12 is supplemental to the checklist for PB-VB1 1 from "Nine Mile Point Nuclear Station, Unit I Response to 10 CFR 50.54(f) Request for Information.

Recommendation 2.3. Seismic". Information documented in this checklist for PB-VB12 is based on walkdown performed on 4/24/2013 per WO C92054674.

2. Findingsfrom the inspection of the cabinet internalsper WO C92054674 are documented in the comments section of this checklist.

Anchorage

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

See "GeneralChecklist Note 1."above.

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable See "GeneralChecklist Note 1." above.

N/A justification:All anchorageare welds.

3. Is the anchorage free of corrosion that is more than mild surface oxidation? Yes See "GeneralChecklist Note 1."above.

Anchorage is free of excessive corrosion.

4. Is the anchorage free of visible cracks in the concrete near the anchors? Yes See "GeneralChecklist Note 1." above.

There were no visible cracks in the concrete nearthe anchorageof PB-BB 11.

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

See "GeneralChecklist Note 1." above.

N/A justification: Item is not one of the 50% of SWEL items requiring configuration verification.

B-29

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: [] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PB-VB12 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

POWER BOARD - 125VDC VALVE BOARD 12

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

See "GeneralChecklist Note 1." above.

Anchorage is free of potentially adverse seismic conditions.

Interadtion Effects

7. Are soft targets free from impact by nearby equipment or structures? Yes See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1."above.

9. Do attached lines have adequate flexibility to avoid damage? Yes See "GeneralChecklist Note 1."above.

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

See "GeneralChecklist Note 1." above.

Other Adverse Conditions

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

See "GeneralChecklist Note 1." above.

Comments See "GeneralChecklist Note 2."above.

Supplemental internal inspection was performed on 4/24/2013 per WO C92054674. No adverse conditions were identified. All internal components appear to be mounted adequately.

Evaluated by: Joshua Rocks (-  :* Date: 06/14/2013 Jeff Park 06/14/2013 Photos B-30

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: F N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PB-VB12 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment Descdpbon: POWER BOARD - 125VDC VALVE BOARD 12 PB-VB12 Internal Components and Typical Anchorage

,voiz i ypica inteemai mou~Ullif B-31

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: 7 N U Seismic Walkdown Checklist (SWC)

EquipmentlD No.: PNL-CP167 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

MG Set 167 Control Panel Project: Nine Mile 1 SWEL Location (Bldg, Elev, Room/Area): TB, 277.00 ft, ALL Manufacturer/Model:

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

General Checklist Notes:

1. Anchorage and seismic interaction inspections were performed during initial NTTF 2.3 Seismic Walkdowns. Initial walkdown results are availablein the initial Seismic Walkdown Report "Nine Mile Point NuclearStation, Unit 1 Response to 10 CFR 50.54(o Request for Information. Recommendation 2.3. Seismic'" Therefore, questions pertaining to anchorageand seismic interactionare marked N/A in this checklist.

2. Findings from the supplementalinspection of the cabinet internalsper WO C92057484 are documented in the comments section of this checklist.

Anchorage

1. Is anchorage configuration verification required (i.e., is the item one of the 50% Not Applicable of SWEL items requiring such verification)?

See "GeneralChecklist Note 1." above.

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable See "GeneralChecklist Note 1." above.

3. Is the anchorage free of corrosion that is more than mild surface oxidation? Not Applicable See "GeneralChecklist Note 1." above.

4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1." above.

6. Based on the above anchorage evaluations, is the anchorage free of Not Applicable potentially adverse seismic conditions?

See "GeneralChecklist Note 1." above.

B-32

Nine Mile Point Nuclear Station Unit I Supplemental Seismic Walkdown Report Status: [] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PNL-CP167 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

MG Set 167 Control Panel Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Not Applicable See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1. "above.

9. Do attached lines have adequate flexibility to avoid damage? Not Applicable See "GeneralChecklist Note 1."above.

10. Based on the above seismic interaction evaluations, is equipment free of Not Applicable potentially adverse seismic interaction effects?

See "GeneralChecklist Note 1. "above.

Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Not Applicable adversely affect the safety functions of the equipment?

See "GeneralChecklist Note 1." above.

Comments:

See "GeneralChecklist Note 2." above.

Supplemental internal inspection was performed on 4120/2013 per WO C92057484. No adverse conditions were identified. All internal components appear to be mounted adequately.

Josh Rocks Evaluated by: ______________________Date: 6/14/2013 Jeff Park 6/14/2013 B-33

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PNL-CP167 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

MG Set 167 Control Panel Photos Internal of PNL-CP167 B-34

Nine Mile Point Nuclear Station Unit I Supplemental Seismic Walkdown Report Status: [] N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PNL-C02 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CARDOX Cabinet DG 102 Room Project: Nine Mile 1 SWEL Location (Bldg, Elev, Room/Area): TB, 261.00 ft, ALL Manufacturer/Model:

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

Generl Checkilst Notes:

1. Anchorage and seismic interaction inspections were performed duringinitial NTTF 2.3 Seismic Walkdowns. Initialwalkdown results are available in the initial Seismic Walkdown Report "Nine Mile Point NuclearStation, Unit 1 Response to 10 CFR 50.54(o Request for Information. Recommendation 2.3. Seismic". Therefore, questions pertainingto anchorageand seismic interactionare marked N/A in this checklist.

2. Findings from supplemental inspection of cabinet internalsper WO C92057483 are documented in the comments section of this checklist.

Anchorane

1. Is anchorage configuration verification required (i.e., is the item one of the 50% Not Applicable of SWEL items requiring such verification)?

See "GeneralChecklist Note 1." above.

2. Is the anchorage free of bent, broken, missing or loose hardware? Not Applicable See "GeneralChecklist Note 1. "above.

3. Is the anchorage free of corrosion that is more than mild surface oxidation? Not Applicable See "GeneralChecklist Note 1." above.

4. Is the anchorage free of visible cracks in the concrete near the anchors? Not Applicable See "GeneralChecklist Note 1." above.

5. Is the anchorage configuration consistent with plant documentation? (Note: Not Applicable This question only applies ifthe item is one of the 50% for which an anchorage configuration verification is required.)

See "GeneralChecklist Note 1." above.

6. Based on the above anchorage evaluations, is the anchorage free of Not Applicable potentially adverse seismic conditions?

See "GeneralChecklist Note 1." above.

B-35

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: M N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PNL-CO2 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CARDOX Cabinet DG 102 Room Interaction Effects

7. Are soft targets free from impact by nearby equipment or structures? Not Applicable See "GeneralChecklist Note 1." above.

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

See "GeneralChecklist Note 1." above.

9. Do attached lines have adequate flexibility to avoid damage? Not Applicable See "GeneralChecklist Note 1." above.

10. Based on the above seismic interaction evaluations, is equipment free of Not Applicable potentially adverse seismic interaction effects?

See "GeneralChecklist Note 1." above.

Other Adveme Conditions

11. Have you looked for and found no adverse seismic conditions that could Not Applicable adversely affect the safety functions of the equipment?

See "GeneralChecklist Note 1." above.

Comments:

See "GeneralChecklist Note 2.V"above.

Supplemental internal inspection was performed on 4/20/2013 per WO C92057483. No adverse conditions were identified. All internal components appear to be mounted adequately.

Josh Rocks Evaluated by: Date: 6/14/2013 Jeff Park 6/14/2013 B-36

Nine Mile Point Nuclear Station Unit I Supplemental Seismic Walkdown Report Status: MI- N U Seismic Walkdown Checklist (SWC)

Equipment ID No.: PNL-CO2 Equipment Class: (20) Instrumentation and Control Panels and Cabinets Equipment

Description:

CARDOX Cabinet DG 102 Room Photos Internal of PNL-CO2 Internal of PNL-CO2 B-37

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report C Area Walk-By Checklists (AWCs)

Table C-1. Summary of Area Walk-By Checklists AWC Page No. Building Elevation Room-Area-Description 32 TB 291'-0" Turbine Building - North Rows H - J, Columns 6 - 7 C-2 C-I

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: M-] N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area 32 - TB, 291, Turbine Building - North Rows H-J Columns 6-7 (SWEL item in Area 32: PB-VB12).

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.

General Checklist Note:

1. In response to CR-2012-009563, PB-VB12 replaced PB-VB 11 on the SWEL due to inaccessibility of anchorageof PB-VBI 1. The following is an Area Walk-By checklist for PB-VB12 which is supplemental to the Area Walk-By checklist for PB-VB1I1 in Attachment 4, "Area Walk-By Checklist"from the "Nine Mile Point Nuclear Station, Unit I Response to 10 CFR 50.54(f Request for Information.

Recommendation 2.3. Seismic". Information documented in this checklist for PB-VB12 is based on walkdown performed on 4/24/2013 per WO C92054674.

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

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

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

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

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

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

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

7. Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

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?

C-2

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report Status: M N U Area Walk-By Checklist (AWC)

Location (Bldg, Elev, Room/Area): Area 32 - TB, 291, Turbine Building - North Rows H-J Columns 6-7 (SWEL item in Area 32: PB-VB12).

Comments See "GeneralChecklist Note 1."above Supplemental walk-downs were performed on 4/24/2013. No adverse conditions or Seismic interaction issues were identified.

Evaluated by: Josh Rocks Date: 06/14/2013 Jeff Park 06114/2013 Photo*

Area 32 - TB 291 North - Rows H-J Columns 6-7 C-3

Nine Mile Point Nuclear Station Unit 1 Supplemental Seismic Walkdown Report D

SWC's for Supplemental InternalInspections of ElectricalCabinets All SWC component supplemental internal inspections were perfomed as required in Reference 3, Table E-1.

D-1