ML13126A180
| ML13126A180 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 03/28/2013 |
| From: | Ali E Exelon Generation Co |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| RS-12-167, RS-13-067 12Q0108.30-R-002, Rev. 2 | |
| Download: ML13126A180 (181) | |
Text
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 E
Plan for Future Seismic Walkdown of Inaccessible Equipment Fifteen (15) items could not be walked down during the 180-day period following the issuance of the 1 OCFR50.54(f) letter since they are located in areas that are normally inaccessible. The items will be walked down during a unit outage or time when the equipment is accessible, as appropriate. Table E-1 summarizes the reasons each item is inaccessible during normal plant operation and notes the Dresden Station Issue Report (IR) that has been written to track completion of the Seismic Walkdowns (and Area Walk-bys) for these items. It is noted that SSCs identified on Table E-1 require a complete inspection including, as applicable, internal inspections of electrical cabinets for other adverse seismic conditions, as required.
Certain cabinets require supplemental internal inspection for other adverse seismic conditions as summarized in Table E-2. Supplemental internal inspections of these cabinets are required due to clarifications provided by the NRC after the online seismic walkdowns were completed. These Supplemental inspections will be completed during a unit outage or another time when the equipment is accessible, as appropriate. It is noted, that SSCs identified on Table E-1 do not appear on Table E-2.
E-1
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Table E-1. Inaccessible and Deferred Equipment List Component Reason for Action Resolution/
Milestone ID Description Inaccessibility IDR)
Status Completion D03-0203-MAIN STEAM/
Located in 0001AV05 Isolation Valve drywell 1403575 Open D3R22 D03-0203-ADS/ Target Rock Located in 1403575 Open D3R22 0003AV26 Valve drywell ADS/ Reactor Located in 0004AV26 Overpressure Relief drywell 1403575 Open D3R22 Valve PRESSURE Located in D03-1601-SUPPRESSION/
torus basement 1403575 Open D3R22 0021-V05 Drywell Purge Line
/ catwalk Valve PRESSURE Located in D03-1601-SUPPRESSION/
torus basement 1403575 Open D3R22 0022-VO5 Drywell/Torus Purge
/ catwalk Line Valve RB EQUIPMENT Located in D03-2001-DRAIN/ Drywell torus basement 1403575 Open D3R22 0005-V05 Equipment Drain Line I catwalk Valve RB EQUIPMENT Located in D03-2001-DRAIN/ Drywell Floor torus basement 1403575 Open D3R22 0105V05 Drain Line Valve
/ catwalk REACTOR Located in D03-0202-RECIRCULATION/
drywell 1403575 Open D3R22 0005AV20 Recirc Pump A Discharge Valve D03-0203-ADS/ Electromatic Located in 1403575 Open D3R22 0003BV26 Relief Valve drywell CRD/ East Bank Located in D03-0302 Scram Discharge torus basement 1403575 Open D3R22 0157AV05 Volume Drain Valve
/ catwalk CRD/ East Bank Located in D03-0302-Scram Discharge torus basement 1403575 Open D3R22 0156AV05 Volume Drain Valve
/ catwalk E-2
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Component Reason for Action Resolution/
Milestone ID Inaccessibility ID (IR)
Status Completion ISOLATION Located in D03-1301-CONDENSER/ Steam drywell 1403575 Open D3R22 0004-V20 Return Line Isolation Valve D03-2301-HPCI/ HPCI Pump Located in X-1403575 Open D3R22 0008-V20 Injection Line Valve area D03-0302-CRD/East Bank SDV See Note 1 1403575 Open D3R22 0082B-LS Tank Level Switch below 250V DC/ Breaker to See Note 2 D01-M35 TB MCC #3 (ROB-below 1403575 Open D3R22 Battery #3)
Notes:
- 1)
Walkdown team and assigned Equipment Operator could not find component in field. A search of Passport indicated that component is located in Control Panel 903-15. This panel is a SWEL 1 item and was walked down. Dresden SRO disagrees with location shown in Passport. Need Operations Department to guide walkdown team to location of component.
- 2)
Equipment Operator assigned to walkdown team led team to the Unit 2 250V DC MCC #2 for this component. Equipment Operator indicated that the component is located in the aforementioned MCC. Dresden SRO questions if this is the correct location. Need Operations Department to guide walkdown team to location of component.
E-3
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Table E-2. Supplemental Cabinet Internal Inspection List COMPONENT EQUIPMENT ACCESSIBLE IF NOT MILESTONE TRACKING STATUSI ID DESCRIPTION CLASS (Y/N)
ACCESSIBLE, COMPLETION NUMBER INSPECTION WHY?
(IR No.)
RESULTS Energized D03-7838-2---
480VAC/MCC (01) Motor 480VAC IR 1403575 00-38-2 Control No cabinets.
D3R22 WO Open Centers Electrical 631303 safety hazard.
Energized D03-7839-2---
480VAC/MCC (01) Motor 480VAC IR 1440232 D05739-Control No cabinets.
D3R27 WO Open Centers Electrical 1388637 safety hazard.
Tight 250V DC/ MCC (01) Motor thumbscrews.
-M0 A Bus #3A (ROB-Control Yes Will require 1Q2013 1427705 Open RB MCC #3)
Centers screwdriver to open.
Tight D03-8303B----
250V DC/ MCC (01) Motor thumbscrews.
-M05 Bus #3B (ROB-Control Yes Will require 1Q2013 1427705 Open RB MCC #3)
Centers screwdriver to open.
125V DC/ RB Tight D03-83125-...
125V DC (01) Motor thumbscrews.
003-81s5---utioDCControl Yes Will require 1Q2013 1427705 Open Pa06 D
b Centers screwdriver to Panel #3
____ ___ open._
Table E-2 Page 1 of 9 E-4
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IF NOT TRACKING STATUS I COMPONENT EQUIPMENT ACCESSIBLE MILESTONE NUMERIN STION ID DESCRIPTION CLASS (Y/N)
ACCESSIBLE, COMPLETION NUMBER INSPECTION WHY?
(IR No.)
RESULTS Tools required.
Internal inspection of mountings will 24/48V DC/
(01) Motor require IR 1440239
-P0 A
Distribution Control No removal of 1Q2022 WO Open Panel #3A Centers cover over 99053854 breakers (similar to home breaker cabinet)
Energized D03-7338 ------
480V AC/
(02) Low 480VAC IR 1440231 S35 Switchgear 38 Voltage No cabinets.
D3R26 WO Open Switchgear Electrical 99212406 safety hazard.
Energized D03-7339 ------
480V AC/ 480V (02) Low 480VAC IR 1440232 S35 Switchgear 3 Voltage No cabinets.
D3R27 WO Open Switchgear Electrical 538717 safety hazard.
Energized 4160V AC/
(03) Medium 4160VAC IR 1440232
-D35 Switchgear 34-Voltage No cabinets.
D3R27 WO Open 1
Switchgear Electrical 1390287 safety hazard.
480V AC/
Energized D03-7338 ------
Transformer (04) 480VAC T10 38, Feed to Transformers No cabinets.
D3R26 WO Open Switchgear 38 Electrical 99212406 Switchgear_
38safety hazard.
Table E-2 Page 2 of 9 E-5
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 COMPONENT EQUIPMENT ACCESSIBLE IF NOT MILESTONE TRACKING STATUS/
ID DESCRIPTION CLASS (Y/N)
ACCESSIBLE, COMPLETION NUMBER INSPECTION IDY C(IR No.)
RESULTS 250V DC/
Tight D03-83250-Breaker to TB (14) thumbscrews.
A01-MO5 MCC #3 (ROB-Distribution Yes Will require 1Q2013 1427705 Open Battery #3)
Panels screwdriver to Battery__#3)_open.
Tools required.
Internal 24/48V DC/
(14) inspection of IR 1440239 D03-9802A-Breaker to Distribution No mountings will 1Q2022 WO Open A21-B131 Battery Charger Panels require 99053854
- 3A (+)
removal of cover over breakers Tools required.
Most sections can be easily accessed.
D03-8300--
125V DC/
(16) Battery However the 3A --
Battery Charger Chargers and Partial lower left 10Q2013 1427705 Open 3A--B05
- AIvressection will Partial
- 3A Inverters require tools to remove covers to inspect mounting points.
Table E-2 Page 3 of 9 E-6
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IF NOT TRACKING STATUS /
COMPONENT EQUIPMENT ACCESSIBLE MILESTONE NUMBER STION ID DESCRIPTION CLASS (Y/N)
ACCESSIBLE, COMPLETION NUMBER INSPECTION WHY?
(IR No.)
RESULTS Tools required.
Most sections can be easily accessed.
D03-8300--3--
125V DC/
(16) Battery However the
-B05 Battery Charger Chargers and Partial lower left 1PQ2013 1427705 Open
-BO5#SIvrtr section will Partial
- 3 Inverters require tools to remove covers to inspect mounting points.
Tools required.
Most sections can be easily accessed.
003-83250-3--
250V DC/
(16) Battery However the
-B05 Battery Charger Chargers and Partial lower left 1PQ2013 1427705 Open
-135#3Ivetr section will Partial
- 3 Inverters require tools to remove covers to inspect mounting points.
CONTROL (20)
Tight 000-2223-PANEL/ DG Instrumentation thumbscrews.
0109 Cooling Pump and Control Yes Will require 1Q2013 1427705 Open Transfer Switch Panels and screwdriver to Status Cabinets open.
Table E-2 Page 4 of 9 E-7
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IF NOT TRACKING STATUS I COMPONENT EQUIPMENT ACCESSIBLE IFNT MILESTONE TAKN TTS ID DESCRIPTION CLASS (Y/N)
ACCESSIBLE, COMPLETION NUMBER INSPECTION EU E A(IR No.)
RESULTS CONTROL (20)
Tight PANEL/ Unit Instrumentation thumbscrews.
D00-ACP 2/3 Auxiliary and Control Yes Will require 1 Q2013 1427705 Open 2/3 auxl Panels and screwdriver to Control Panel Cbnt pn Cabinets open.
Tools required.
There are two panels at this point. The larger of the two can be CONTROL (20) opened. The PANEL/ Unit Instrumentation smaller DOO-DGCP 2/3 Diesel and Control Partial (mounted on 1Q2013 1427705 Open Generator Panels and the right side)
Partial Control Panel Cabinets cannot be opened without the use of tools.
The panel label is located on the smaller panel.
D00-NGC CONTROL (20)
(This is PANEL/ Unit Instrumentation assumed to 2/3 Neutral and Control Yes N/A 1 Q2013 1427705 Open be EPN 2/3-Grounding Panels and 6600-NGT)
Cabinet Cabinets Table E-2 Page 5 of 9 E-8
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 COMPONENT EQUIPMENT ACCESSIBLE IF NOT MILESTONE TRACKING STATUSI ID DESCRIPTION CLASS (Y/N)
ACCESSIBLE, COMPLETION (MR No)
PESTS WHY?(IR No.)
RESULTS (20)
NO OTHER CONTROL (20)
ADVOTERS CNRL Instrumentation ADVERSE D03-0903-PAN ELS/
Insrumntaio and Control YES N/A 7/30/2012 N/A SEISMIC 0003 Control Panel CONDITIONS Panels and(NPHT 903-3 Cabinets (NO PHOTO ALLOWED)
CONTROL (20)
NO OTHER D03-0903-PANELS/
Instrumentation ADVERSE 0015 Control Panel and Control YES N/A 7/30/2012 N/A SEISMIC Panels and 903-15 Canets CONDITIONS Cabinets CONTROL (20)
NO OTHER D03-0903-PANELS/
Instrumentation ADVERSE 0028 Control Panel and Control YES N/A 7/30/2012 N/A SEISMIC Panels and 903-28 Canets CONDITIONS Cabinets (20)
NO OTHER CONTROL (20)
ADVOTERS CNRL Instrumentation ADVERSE D03-0903-PANELS/
IsrmnaonSEISMIC 0039 and Control YES N/A 7/30/2012 N/A CNITIO 0039 Control Panel Panels andCONDITIONS 903-39 Cabinets (NO PHOTO ALLOWED)
Table E-2 Page 6 of 9 E-9
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IF NOT TRACKING STATUS /
COMPONENT EQUIPMENT ACCESSIBLE MILESTONE NUMERIN STION ID DESCRIPTION CLASS (Y/N)
ACCESSIBLE, COMPLETION NUMBER INSPECTION WHY?
(IR No.)
RESULTS (20)
NO OTHER CONTROL Instrumentation ADVERSE D03-0923-PAN ELS/
Insrumntaio and Control YES N/A 7/30/2012 N/A SEISMIC 0005 Control Panel CONDITIONS Panels and(NPHT 923-5 Cabinets (NO PHOTO ALLOWED)
CONTROL (20)
D03-2253-PANEL/ DG Instrumentation and Control Yes N/A 1Q2013 1427705 Open 0010 Metering and Pnl n
Relay Cabinet Canets Cabinets CONTROL (20)
Thumbscrews.
D03-2253-PANEL/ DG Instrumentation May require 0021 Excitation and Control Yes screwdriver to 1Q2013 1427705 Open Panels and Cabinet Cabinets open.
H(20)
This is a HPCI/Instrumentation switch, not a IR 1440230 D03-2380-Turbine and Control No panel.
4Q2019 WO Open PSH Pressure and Cnt Inspection will 654449 Switch High Pabinels arequire some h Cabinets disassembly.
Table E-2 Page 7 of 9 E-10
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IF NOT TRACKING STATUS/
COMPONENT EQUIPMENT ACCESSIBLE IFNT MILESTONE TRCIG SAU/
ID DESCRIPTION CLASS (Y/N)
ACCESSIBLE, MILETON NUMBER INSPECTION ID CLASS (IR No.)
RESULTS Tools required.
Internal inspection of DISTRIBUTION (20) mountings will D03-7838-1 PANELS/
Instrumentation require
-P06 Distribution and Control Yes removal of 1Q2013 1427705 Open Panels and cover over Cabinets breakers (similar to home breaker cabinet)
Tools required.
There are two panels at this point. The larger of the two can be CONTROL (20) opened. The PANEL/ Unit 3 Instrumentation smaller D03-DGCP Diesel and Control Yes (mounted1Q2013 1427705 Open Generator Panels and the right side)
Control Panel Cabinets cannot be opened without the use of tools.
The panel label is located on the smaller panel.
Table E-2 Page 8 of 9 E-1 1
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IF NOT TRACKING STATUS /
COMPONENT EQUIPMENT ACCESSIBLE MILESTONE NUMBER STION ID DESCRIPTION CLASS (Y/N)
ACCESSIBLE, COMPLETION NUMBER INSPECTION WHY?
(IR No.)
RESULTS D03-NGC CONTROL (20)
(This is PANEL/ Unit 3 Instrumentation assumed to Neutral and Control Yes N/A 1Q2013 1427705 Open be EPN 3-Grounding Panels and 6600-NGT)
Cabinet Cabinets INSTRUMENT NO OTHER D03-2203-RACKS/
(18)
ADVERSE 003-InSt Instruments on YES N/A 7/30/2012 N/A SEISM 0070A Instrument RcsSEISMIC Racks Rack 2203-70A CONDITIONS INSTRUMENT (18)
D03-2203-RACKS/
(8 003A InSt Instruments on Yes N/A 1Q2013 1427705 Open 0073A InstrumentRak Rack 2203-73A INSTRUMENT (18)
May require a D03-2253-RACKS/
(8 a eur 0084 InSt Instruments on Yes screwdriver to 1Q2013 1427705 Open 0084 Instrument Racks open.
Rack 2253-84 1111111 Table E-2 Page 9 of 9 E-12
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 F
Peer Review Report This appendix includes the Peer Review Team's report, including the signed Peer Review Checklist for SWEL from Appendix F of the EPRI guidance document. (Ref. 1)
F-1
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Peer Review Report for Near Term Task Force (NTTF) Recommendation 2.3 Seismic Walkdown Inspection of Dresden Nuclear Station Unit 3 October 24, 2012 Prepared by Peer Reviewers Bruce M. Lory (Team Leader)
Walter Doordeevic Tribhawan K. Ram Bruce M. Lory 10/24/2012 Peer Review Team Leader Certification Signature Date Sheet 1 of 12 F-2
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 IIntroduction 1.1 OVERVIEW This report documents the independent peer review for the Near Term Task Force (NTTF) Recommendation 2.3 Seismic Walkdowns performed by Stevenson &
Associates (S&A) for Unit 3 of Dresden Station. The peer review addresses the following activities:
Review of the selection of the structures, systems, and components, (SSCs) that are included in the Seismic Walkdown Equipment List (SWEL).
Review of a sample of the checklists prepared for the Seismic Walkdowns & Walk-Bys Review of the decisions for entering the potentially adverse conditions in to the plant's Corrective Action Plan (CAP)
Review of any licensing basis evaluations Review of the final submittal report 1.2 PEER REVIEWERS The peer reviewers for the Dresden Unit 3 Plant are Messrs. Walter Djordjevic, Bruce Lory, and Tribhawan K. Ram, all of S&A. Mr. Lory is also designated the peer review Team Leader. Other than a peer review of "in progress" seismic walkdown inspections, none of the aforementioned engineers were directly involved in the seismic walkdown inspection of equipment so that they could maintain their independence from the project.
Mr. Djordjevic has an advanced degree structural engineer and has over thirty years of nuclear seismic experience and has been trained as a Seismic Capability Engineer (EPRI SQUG training), EPRI IPEEE Add-on, Seismic Fragility and Seismic Walkdown Engineer (SWE) training. Mr. Lory is a mechanical engineer with 33 years of experience, has been trained as a Seismic Capability Engineer (EPRI SQUG training), is instructor of the Fundamentals of Equipment Seismic Qualification training course for EPRI, and is the co-instructor of the Fukushima Seismic Walkdown training course in response to NTTF 2.3. Mr. Ram is an advanced degree nuclear engineer with over 25 years of nuclear power plant experience. Mr. Lory led the seismic peer review activities and Mr. Djordjevic led the SWEL selection peer review. All peer review activities were performed by both engineers, with the exception of the peer review of the Dresden-2 SWEL. Resumes for the peer reviewers are included in Appendix A of the report.
1.3 SWEL DEVELOPMENT The SWEL development was performed by Mr. Tony Perez of S&A. The peer review of the SWEL development was concurrent with the SWEL development and any revisions to the SWEL after initial plant acceptance were peer reviewed before approval. The Sheet 2 of 12 F-3
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 completed SWEL Peer Review Checklist is found in Attachment 1. The discussion for the SWEL development peer review is found in Section 2.
1.4 SEISMIC WALKDOWN INSPECTION The peer review of the seismic walkdown inspection started on July 16, 2012 with a peer check of the actual walkdowns Dresden Unit 2 by Mr. Bruce Lory. Mr. Lory joined the walkdown team for a portion of the day's planned walkdowns to observe the conduct of walkdowns and adherence to the Seismic Walkdown Guidance (SWG)'. An interview was conducted by Messrs. Djordjevic and Lory with the SWE inspection team on September 7, 2012 after review of a sample of the Unit 3 Seismic Walkdown Checklists (SWC) and Area Walk-By Checklists (AWC) to ascertain the quality and procedural compliance with the SWG. The discussion of the sample SWC and AWC is provided in Section 3.
Seismic Walkdown Guidance For Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, EPRI Report 1025286, June 2012.
Sheet 3 of 12 F-4
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 2Peer Review - Selection of SSCs 2.1 PEER REVIEW ACTIVITY - SELECTION OF SSCs The guidance in EPRI Technical Report 1025286, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, dated June 2012 {Reference 1}, Section 3: Selection of SSCs was used as the basis for this review.
This peer review was based on reviews of the following documents:
UFSAR chapters 6 and 9 SWEL 1 List P&IDs M-362 and M-373: Fuel Pool Cooling System This peer review was based on interviews with the following individual(s) who was (were) directly responsible for development of the SWEL:
Tony Perez This peer review utilized the checklist shown in Reference 1 Appendix F: Checklist for Peer Review of SSC Selection.
2.2 UNIT 3 SWEL I DEVELOPMENT For SWEL 1 development, the following actions were completed in the peer review process:
- 1. Verification that the SSCs selected represented a diverse sample of the equipment required to perform the following five safety functions:
A.
Reactor Reactivity Control (RRC)
B.
Reactor Coolant Pressure Control (RCPC)
C.
Reactor Coolant Inventory Control (RCIC)
D.
E.
Containment Function (CF)
This peer review determined that the SSCs selected for the seismic walkdowns represent a diverse sample of equipment required to perform the five safety functions. This conclusion was based on a review of UFSAR chapters 6 and 9, and SWEL 1 which determined that all five safety functions (RRC, RCPC, RCIC, DHR, and CF) are adequately represented.
Sheet 4 of 12 F-5
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167
- 2.
Verification that the SSCs selected include an appropriate representation of items having the following sample selection attributes:
A.
Various types of systems B.
Major new and replacement equipment C.
Various types of equipment D.
Various environments E.
Equipment enhanced based on the findings of the IPEEE F.
Risk insight consideration This peer review determined that the SSCs selected for the seismic walkdowns include a sample of items that represent each attribute/consideration identified above. The justification for this conclusion is: a) Based on a review of UFSAR chapters referenced above and the SWEL 1 list, it was determined that appropriate variety of equipment and systems are represented (e.g., EDG, EDG Fuel Oil Transfer, EDG Cooling Water, LPCI, HPCI, Batteries, Battery Chargers, Low and Med Vol Switchgear and MCCs); b) The "New or Replace" equipment are indicated as such; c) A variety of location environments are included: e.g., MCCs (TB and RB), Pumps (TB and RB), Tanks and Heat Exchangers (TB and RB), and Valves (RB @ EL 476.5, 517.5, and 570); d) The IPEEE Enhancement related equipement is indicated as such; and e) The risk quantification has been included in the "Comments" column.
Note: Because of accessibility reasons, some equipment has appropriately been deferred to Outage.
2.3 UNIT 3 SWEL 2 DEVELOPMENT For SWEL 2 development, the following actions were completed in the peer review process:
- 1.
Verification that SFP related items were considered and appropriately added to SWEL 2.
This peer review determined that there were no spent fuel pool cooling system Seismic Category 1 items. This determination is based on a review of FSAR chapter 9 and Fuel Pool Cooling System P&IDs M-362 and M-373.
- 2.
Verification that appropriate justification was documented for spent fuel pool related items that were not added to SWEL 2.
This peer review determined that an appropriate level of justification was documented for having no items on SWEL 2. The justification for not including any Seismic Category I Structure has appropriately been documented in the interim Sheet 5 of 12 F-6
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 report. There are no rapid drain down related components in SWEL 2. Appropriate justification for this item is included in the interim report as well.
2.4 PEER REVIEW FINDINGS - SELECTION OF SSCs This peer review found that the process for selection for SWEL 2 SSCs was consistent with the process outlined in Reference 1 Section 3: Selection of SSCs.
The peer review checklist for the SWEL is contained in Attachment 1 of this document.
This peer review resulted in no additional findings.
2.5 RESOLUTION OF PEER REVIEW COMMENTS - SELECTION OF SSCs All comments initiated through the peer review process were minor and were resolved.
There are no outstanding issues that require resolution.
2.6 CONCLUSION
OF PEER REVIEW - SELECTION OF SSCS This peer review concludes that the process for selecting SSCs to be included on the seismic walkdown equipment list appropriately followed the process outlined in Reference 1, Section 3: Selection of SSCs. It is further concluded that the SWEL sufficiently represents a broad population of plant Seismic Category 1 equipment and systems to meet the objectives of the NRC 50.54(f) Letter.
Sheet 6 of 12 F-7
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 3Review of Sample Seismic Walkdown & Area Walk-Bys Checklists 3.1 OVERVIEW After review of the SWCs and AWCs, an interview was conducted by Messrs. Djordjevic and Lory with the SWE inspection team on September 28, 2012 in accordance with the SWG requirements to discuss and clarify completion of the SWE, AWC and licensing basis evaluations. It was concluded that the walkdown team performed their assessments and evaluations properly.
3.2 SAMPLE CHECKLISTS Table 3-1 lists the SWC and AWC samples which represent 12% of the SWCs and 24%
of the AWCs. The sample includes the equipment inspected during the peer review and other equipment items from other classes to introduce diversity to the sampling procedure.
Table 3-1. Table of SWC and AWC Samples from Seismic Walkdown Inspection for Unit 3 Equipment No.
(GIP)
Walkdown Item Location Observations Class D03-5741-7 Control Room Turbine Bldg, None noted 0048BV72 Ventilation SW Supply EL 534 ft Valve DOO-9400-11 Control Room Turbine Bldg, None noted 0102-R15 Ventilation Refrig EL 534 ft Condensing Unit D00-9400-9 Control Room Turbine Bldg, None noted 0104BF05 Ventilation AFU EL 534 ft Booster Fan D00-ACP 20 Control Panel Unit 2/3 Turbine Bldg, None noted Aux Control Panel EL 504 ft D03-0302-8 CRD Backup Scram Reactor Recommended that the comment 0019AV27 SV Bldg. EL 517 regarding the missing support ft clamp on copper pipe near Valve 3-302-20B (IR 1395804), be moved from question 11 to the comments section of the SWC, since the comment does not affect the safety function of the CRD Backup Scram SV.
D03-0302-18 CRD East Bank SDV Control Rm.,
None noted 0082B-LS Tank Level Switch EL 534 ft.
Sheet 7 of 12 F-8
Dresden Generating Station Unit 3 12QO108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment No.
(GIP)
Walkdown Item Location Observations Class D03-0302-18 CRD East Bank SDV Reactor None noted 0082B-LT Tank Level Transmitter Bldg. EL 517 ft D03-0903-20 Control Panel 903-15 Control Rm.,
None noted 0015 EL 534 ft.
D03-0903-20 Control Panel 903-28 Turbine Bldg, None noted 0028 EL 517 ft D03-1501-5 CCSW Pump A Turbine Bldg, None noted 0044AP30 EL 495 ft D03-6 LPCI/LPCI Injection Reactor None noted 1502A-Pump Bldg., EL P30 476 ft D03-LPCI Heat Exchanger Reactor None noted 1503A-Bldg., EL 115 476 ft Area Walkdown Description Observations AWC-U3-01, Cntrl Rm.
(near 903-28)
No concerns AWC-U3-02, AEER Rm.
(near 903-28)
No concerns AWC-U3-03, Battery Charger Rm. - El. 38 Ft.
No concerns AWC-U3-04, Turbine Bldg.
(near 3A charger)
No concerns AWC-U3-05, Battery Rm.
(near 903-28)
No concerns AWC-U3-26, Reactor Bldg.
- SDC Pump Rm.
No concerns AWC-U3-27, Reactor Bldg.-
No concerns TIP Rm.
AWC-U3-27, Reactor Bldg.-
No concerns Torus Catwalk 1
3.3 EVALUATION OF FINDINGS There were no findings of seismic significance. The scaffolding and seismic housekeeping procedures were reviewed by the SWEs to gain a full understanding of the plant practices. There were no significant concerns noted in Unit 3 with regard to scaffold erection. The scaffolds were properly tied off and braced, and properly tagged with respect to the procedure.
With regard to seismic housekeeping, there were instances found of open S-hooks in the plant. Generally, if they were found to not to contribute to a credible seismic interaction they were adjudged acceptable and not dispositioned to an IR. Similarly, if an item Sheet 8 of 12 F-9
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 posed a potential proximity hazard to a vital component and it was removed "on the spot" in accordance with the housekeeping procedure, then it was not dispositioned to an IR. However, in all instances the Seismic Walkdown Checklist (SWC) documented the details of the occurrence, the action taken (if any) and the conclusion rendered by the SWE inspectors. Most importantly, if the situation warranted a correction then an IR was specifically generated for that component or area in the case of area walk-bys.
The peer review of the SWCs included a recommendation for panels/cabinets which could be opened and inspected for loose or missing component mounting hardware. It was recommended that a comment be put under question 11 to denote what were the results of the internal inspection. If no loose or missing mounting hardware was found or if mounting hardware was found loose/missing, a sentence to that affect should be made in the SWC.
Sheet 9 of 12 F-I 0
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 4Review of Licensing Basis Assessments Because none of the issues identified during the Seismic Walkdowns or Area Walk-Bys were determined to be "Potentially Adverse Seismic Conditions, no Licensing Basis Evaluations were performed.
Sheet 10 of 12 F-11
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 5Review Final Submittal Report & Sign-off The final submittal report has been reviewed by Messrs. Bruce M. Lory and W. Djordjevic and found to meet the requirements of the EPRI 1025286 - Seismic Walkdown Guidance (Reference 1).
Sheet 11 of 12 F-1 2
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 6References
- 1.
EPRI Technical Report 1025286, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, dated June 2012.
See Section 9 of report for additional references.
Sheet 12 of 12 F-1 3
- Peer Review Checklist for SWEL Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 2 Peer Review Checklist for SWEL Instructions for Completing Checklist This peer review checklist may be used to document the review of the Seismic Walkdown Equipment List (SWEL) in accordance with Section 6. The space below each question in this checklist should be used to describe any findings identified during the peer review process and how the SWEL may have changed to address those findings. Additional space is provided at the end of this checklist for documenting other comments.
- 1. Were the five safety functions adequately represented in the SWEL I selection?
YZ N-Appropriate equipment has been included to maintain the five safety functions: RRC, DHR, RCIC, RCPC, and CF
- 2. Does SWEL I include an appropriate representation of items having the following sample selection attributes:
- a. Various types of systems?
Various system types (e.g., HPCI, LPCI, ADS/SRV, CRD, DG, RBCCW, SW, and support systems such as MCCs and distribution panels) have been included.
YZ NO
- b. Major new and replacement equipment?
"New or Replace" equipment (from the major MOD list) are included in the list.
YE NIEI
- c. Various types of equipment?
The equipment represents all required 21 types except 13 and 19. The screenings
- 1, #2, and #3 resulted in no equipment in the latter two categories.
YZ NEI
- d. Various environments?
Appropriate environments (e. g., REACTOR and TURBINE buildings) have been included.
- e. Equipment enhanced based on the findings of the IPEEE (or equivalent) program?
Included as indicated in the column, "IPEEE Enhancement."
YZ NEI YZ NO F-14
- Peer Review Checklist for SWEL Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 2 Peer Review Checklist for SWEL
- f. Were risk insights considered in the development of SWEL 1?
YZ NE Risk quantifications provided in the "Comments" column
- 3. For SWEL 2:
- a. Were spent fuel pool related items considered, and if applicable included in YZ NEI SWEL 2?
There is no equipment on SWEL2.
- b. Was an appropriate justification documented for spent fuel pool related items not Y[
NEI included in SWEL 2?
Provided in the Submittal Report
- 4. Provide any other comments related to the peer review of the SWELs.
All items on SWEL 1 have a Seismic Licensing basis.
- 5. Have all peer review comments been adequately addressed in the final SWEL?
Y[
NE3 7K 4 Peer Reviewer # 1: TK Ram Date: 7/20/12 14'r Peer Reviewer #2: Walter Diordievic Date: 8/20/12 F-I 5
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 G
IPEEE Vulnerability Status Table G-1 lists the plant improvements, the IPEEE/SQUG proposed resolution, the actual resolution and resolution date.
G-1
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Table G-1. IPEEE Improvements Status Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Hydraulic Control
- 1) No seismic capacity
- 1) No actions required. Upon
- 1) Condition resolved in
- 1) 6/1997 Unit based on earthquake further review, Hydraulic original IPEEE report.
D02-0305 ------ experience or generic Control Unit consists of H20 seismic testing ruggedness accumulator and valves which D03-0305 ------ data is available for class 0 are in the earthquake
- 2) The worst case gas bottle 2)1/4/2000 H20 equipment.
experience and generic seismic with a single chain has been
- 2) Nearby gas bottles are testing ruggedness data. Rack verified for adequacy based restrained by only a single load path and anchorage are on seismic testing (Ref. NDIT
- chain, separately analyzed and are No. SEC-DR- 00-001).
acceptable. CRD piping and scram header very well seismically supported.
RESOLUTION #11
- 2) Gas bottles need a second chain near the bottom.
RESOLUTION #1 Motor Control MCCs are not anchored to Provide positive anchorage Condition has been deleted 3/31/2000 Centers the equipment pad.
system.
from the Program. The MCCs D02-7820 RESOLUTION #9 power the Refuse Pumps.
M05 The Refuse Pumps are not being credited for Isolation D03-7830 Condenser makeup for the M05 loss of dam failure scenario; therefore, the MCCs are not required for safe shutdown or included in the SPEL.
Table G-1 Page 1 of 33 G-2
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Bus and Panel
- 1) Locker/storage cabinet
- 1) Positively anchor locker or
- 1) Locker/storage cabinet
- 1) 5/1996 D02-8302A located next to bus on rear re-locate it.
relocated. Condition M05 side.
RESOLUTION #5 resolved in original IPEEE
- 2) Seismic demand exceeds
- 2) Develop realistic, median report.2) capacity.
amplified floor spectra to 2) potentially reduce seismic
- 2) Realistic median centered 10/30/2003 demand to an acceptable level, response spectra were not useful. Modification added RESOLUTION #11 bracing to improve capacity.
Ref. EC 341875 & WO 558649 Motor Control Adjacent MCC 35-1 is Anchorage modification needed.
Anchorage has been 5/30/2003 Center inadequately anchored (only RESOLUTION #9 modified. Ref. EC 7583 & WO D03-7839-2----
tack welded in rear).
99103698 M05 Bus and Panel Seismic demand exceeds Develop realistic, median Realistic median centered 10/30/2003 D02-83125 ----- capacity.
amplified floor spectra to response spectra were not P06 potentially reduce seismic useful. Modification added demand to an acceptable level, bracing to improve capacity.
RESOLUTION #11 Ref. EC 341875 &
WO 558649 Bus and Panel
- 1) Seismic demand exceeds 1&2) Develop realistic, median 1 &2) Realistic median Unit 2 D03-8303A-capacity.
amplified floor spectra to centered response spectra 10/30/2003 M05
- 2) Embedded angle pullout potentially reduce seismic were not useful. Modification Unit 3 D03-8303B ----- capacity is insufficient to demand to an acceptable level, added bracing to improve 11/5/2003 M05 hold down the cabinet RESOLUTION #11 capacity. Ref. EC 341875 &
D03-83125 ----- during the event of SSE.
WO 558649 (Unit 2)
P06 EC 341876 &
D02-8302B -----
WO 558699 (Unit 3)
M05 Table G-1 Page 2 of 33 G-3
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Switchgear Spare Breakers are too Relocate spare breakers A walkdown confirmed that 1/7/2003 D02-67241 ----. 35 close RESOLUTION #5 the spare breakers have been relocated.
Motor Control Overhead unanchored Positively secure emergency A walkdown confirmed that 5/6/1999 Center emergency light # 251C
- light, the emergency light has been D02-7829-8 ----
(battery powered).
RESOLUTION #3 positively secured.
M05 Panel A 6' long (tall) cable tray Determine whether or not Condition resolved in original 4/1996 D02-8302B-1---
raceway system hanger panel(s) contains essential IPEEE report. Panels do not P06 which is rod hung and relays. If it does, brace contain essential relays; D02-83125-1---
laterally unbraced may raceway to preclude impact therefore, no actions are P06 sufficiently displace to potential.
required to preclude impact impact the Panel.
RESOLUTION #6 potential.
Panel
- 1) Lights overhead have
- 1) Close Open S-Hooks.
- 1) Condition resolved in
- 1) 5/1996 D03-8303A1 open hooks.
RESOLUTION #2 original IPEEE report. The S-P06
- 2) D.G. stack rises adjacent
- 2) Evaluate seismic structural hooks have been closed.
to panel and is a potential integrity of exhaust stack
- 2) The seismic structural
- 2) 3/26/1998 RESOLUTION #6.
integrity is acceptable based on evaluation (Ref. SEWS, Rev. 1).
Table G-1 Page 3 of 33 G-4
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Motor Control
- 1) Nearby gas bottles
- 1) Gas bottles need a second
- 1) The worst case gas bottle 1)1/4/2000 Center secured by only 1 chain, chain near the bottom.
with a single chain has been D02-7829-2----
- 2) Lights overhead have RESOLUTION #1 verified for adequacy based M05 on seismic testing (Ref. NDIT open hooks.
- 2) Close open S-hooks.
No. SEC-DR-00-001).
- 3) Unrestrained flammable RESOLUTION #2 storage cabinet adjacent to
- 3) Positively anchor cabinet or
- 2) The S-hooks have been
- 2) 5/1996 re-locate, closed. Condition resolved in RESOLUTION #5 original IPEEE report.
- 3) The cabinet has been
- 3) 5/1996 relocated. Condition resolved in original IPEEE report.
Panel
- 1) Lights overhead have
- 1) Close open S-Hooks.
- 1) The S-hooks have been
- 1) 5/1996 D03-8303B1 ----
open hooks.
RESOLUTION #2 closed. Condition resolved in P06
- 2) Emergency light #329
- 2) Positively secure emergency original IPEEE report.
D03-9802-A ---- (battery powered) not light.
- 2) A walkdown has confirmed
- 2) 5/6/1999 P06 secured.
D03-9802-B ----
RESOLUTION #3 that the light has been P06 positively secured.
Panel Lights overhead have open Close open S-Hooks.
The S-hooks have been 5/1996 D03-8303A1-1--
hooks.
RESOLUTION #2 closed. Condition resolved in P06 original IPEEE report.
D03-83125-3---
P06 Table G-1 Page 4 of 33 G-5
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Motor Control Lights overhead have open Close open S-Hooks.
The S-hooks have been 5/1996 Center and Panel hooks.
RESOLUTION #2 closed. Condition resolved in D02-7828-3 ----
original IPEEE report.
M05 D02-7829-4 ----
M05 D03-7838-2 ----
M05 D03-7838-3 ----
M05 D02-2202-0073AP05 D02-2202-0073BP05 D03-2203-0006 D02-2252-0084-P05 Table G-1 Page 5 of 33 G-6
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Motor Control Nearby gas bottles only Gas bottles need a second
- 1) The worst case gas bottle 1)1/4/2000 Center and Panel restrained by a single chain chain near the bottom.
with a single chain has been D02-7828-7 RESOLUTION #1 verified for adequacy based on seismic testing (Ref. NDIT D03-7838-1 -
No. SEC-DR-00-001).
P06 D02-9205-A ----
V05
- 2) The NDIT identified the 2)1/7/2003 D02-9205-B ----
gas bottle by MCC D03-V05 7838-1-1 as much smaller D02-9206-A ----
and not represented by the V05 test gas bottle; therefore, D02-9206-B ----
required a lower support and V05 chain. A walkdown confirmed D03-9206-A ----
that the gas bottle has been V05 relocated away from the D03-9206-B ----
MCC.
V05 Motor Control
- 1) Nearby gas bottles only
- 1) Gas bottles need a second
- 1) The worst case gas bottle 1)1/4/2000 Center and Panel restrained by a single chain, chain near the bottom.
with a single chain has been D02-83250 ----- 2) Anchorage capacity less RESOLUTION #1 verified for adequacy based M05 than demand on seismic testing (Ref. NDIT
- 2) Develop realistic, median No. SEC-DR-00-001).
amplified floor spectra to potentially reduce seismic
- 2) Per Attachment 2 to
- 2) 3/30/2000 demand to an acceptable level, response to NRC RAI, Dresden Letter PSLTR #00-RESOLUTION #11 0068, no actions are required.
Table G-1 Page 6 of 33 G-7
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Motor Control
- 1) Nearby gas bottles only
- 1) Gas bottles need a second
- 1) The worst case gas bottle 1)1/4/2000 Center and Panel restrained by a single chain, chain near the bottom.
with a single chain has been D02-9802-A----
- 2) Anchorage capacity less RESOLUTION #1 verified for adequacy based P06 than demand on seismic testing (Ref. NDIT
- 2) Develop realistic, median No. SEC-DR-00-001) amplified floor spectra to potentially reduce seismic
- 2) Per Attachment 2 to
- 2) 3/30/2000 demand to an acceptable level, response to NRC RAI, Dresden Letter PSLTR #00-RESOLUTION #11 0068, no actions are required.
Panel The internal cable tray Restrain cross-members by Proposed modifications to Unit 2 D02-0902-0015 raceway system hanger is "tying" them to front and back restrain cross-members have 10/29/2001 D02-0902-0017 rod hung and transversely panels. This will preclude been completed.
Unit 3 D02-0902-0019 unrestrained. It can impact hazard as well as Modification EC 7526 &
10/22/2002 D02-0902-0036 displace sufficiently to connecting front and rear WO 558649 (Unit 2) and D03-0903-0015 impact the Panel which has portions of the main control EC 7527 &
D03-0903-0017 only 1" clearance from the board increasing anchorage WO 558699 (Unit 3)
D03-0903-0019 end of the cross-member.
capacity seismic margin. Crimp D03-0903-0036 Cabinets do contain light hooks.
D02-0902-0004 essential relays.
RESOLUTION #6 D03-0903-0004 Table G-1 Page 7 of 33 G-8
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Panel
- 1) Located adjacent to a
- 1) Insert neoprene or similar
- 1) Neoprene padding has 1)
D03-0903-0046 conduit pull-box and it is an soft material between pull-box been installed between the 12/17/1999 impact hazard.
and cabinet to reduce pull-box and cabinet in
- 2) Adjacent tool box significance of impact.
accordance with WR adjudged a hazard.
RESOLUTION #6 990056423 to reduce
- 2) Re-locate storage tool box.
significance of impact.
- 2) The tool box has been
- 2) 5/1996 RESOLUTION #5 relocated. Condition resolved in original IPEEE report.
Panel and Adjacent emergency lights Positively restrain emergency A walkdown has confirmed 5/6/1999 Transformer
- 293, #299, #220, and #313
- lights, that the lights have been D02-2202-0008 (battery powered) are RESOLUTION #3 positively restrained. Light D02-7229 ------ missing straps or are
- 299 should be #229.
T10 1 unrestrained.
D02-0902-0041 Battery Charger Overhead emergency light Positively restrain emergency A walkdown has confirmed 5/6/1999 D03-9802-
- 329 (battery powered) is
- light, that the Emergency light 3BNEGBO5 shelf mounted and RESOLUTION #3
- 329 has been positively D03-9802-unrestrained, restrained.
3BPOSB05 1 Actual equipment number is D02-7329 ------
T10 Table G-1 Page 8 of 33 G-9
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Switchgear
- 1) Overhead trolley hoist is
- 1) Use a clamp or similar
- 1) Condition for 2-7328
- 1) 4/1996 for D02-7328 ------ an impact hazard and needs device to prevent the hoist from resolved in original IPEEE 2-7328.
S35 to be parked.
rolling freely.
report based on confirmation D02-7329 ------ 2) Emergency light #299 RESOLUTION #4 of no essential relays in the S35 (battery powered) not
- 2) Secure emergency light.
switchgear. No actions are restrained.
required for 2-7329 as the RESOLUTION #3 hoist is a tool that has an
- 3) Anchorage capacity less annual preventative than demand
- 3) Develop realistic, median annal preventive amplified floor spectra to maintenancntion (P potentially reduce seismic 184453-01) controlled by demand to an acceptable level.
Procedure MA-DR-MM 58001 that checks the locking RESOLUTION #11 device..
- 2) The light has been
- 2) 5/6/1999 positively restrained. The correct light number is 229.
3)
- 3) Per Attachment 2 to 03/30/2000 response to NRC RAI, Dresden Letter PSLTR #00-0068, no actions are required.
Switchgear Overhead trolley hoist, open
- 1) Use a clamp or similar
- 1) Condition resolved in
- 1) 4/1996 D03-7338 ------ S-hook on overhead device to prevent the hoist from original IPEEE report. No S35 florescent light and racking rolling freely.
actions are required since it crank hanging between RESOLUTION #4 has been verified that there breaker and transformer are are no essential relays within all impact hazards.
- 2) Close open S-Hooks.
the switchgear.
RESOLUTION #2
- 2) The S-Hooks have been
- 3) Secure or re-locate crank.
closed. Condition resolved in
- 2) 5/96 RESOLUTION #5 original IPEEE report.
Table G-1 Page 9 of 33 G-10
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Switchgear Overhead trolley hoist, open
- 1) Use a clamp or similar
- 1) Condition resolved in
- 1) 4/1996 D03-7339 ------ S-hook on overhead device to prevent the hoist from original IPEEE report. No S35 florescent light, racking rolling freely.
actions are required since it crank hanging between RESOLUTION #4 has been verified that there breaker and transformer and are no essential relays within adjacent unanchored 4KV
- 2) Close open S-Hooks.
the switchgear.
gear box locker are all RESOLUTION #2 impact hazards.
- 3) Secure or re-locate crank.
- 2) The S-Hooks have been
- 2) 5/1996 closed. Condition resolved in RESOUTIO
- 5original IPEEE report.
- 4) Anchor or re-locate locker.
RESOLUTION #5
- 3) The racking crank has 3)08/12/1995 been relocated in accordance with Mod E12-3-95-221 &
WO 95054280. Condition resolved in original IPEEE report.
4)
- 4) The locker has been 08/11/1995 relocated in accordance with E12-3-95-220 & WO 95054281. Condition resolved in original IPEEE report.
Table G-1 Page 10 of 33 G-11
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Switchgear Safety equipment locker
- 1) Anchor or re-locate locker.
- 1) Equipment locker has
- 1) 5/1996 D03-6734 ------ adjacent to cubicle, spare RESOLUTION #5 been relocated. Condition S35 breakers marginally chained resolved in original IPEEE to wall, and additional
- 2) Secure or re-locate spare report.
unanchored spare cubicles breakers.
- 2) Spare breakers have been
- 2) 5/1 996 5' away from line-up are RESOLUTION #5 relocated. Condition resolved interaction hazards.
in original IPEEE report.
Panel
- 1) Panel is not bolted to
- 1) Determine whether or not
- 1) Panels D02-2202-70A
- 1) Unit 2 D03-2202-0070A adjacent panel panel(s) contains essential and D03-2203-70A are bolted 10/29/2001.
D03-2203-0070B
- 2) Panel D03-0903-0052 is relays. If they do, connect to adjacent Panels D02-Unit 3 D02-0902-0033 missing a bolt and is (bolt) panels together to 2202-70B and D03-2203-9/26/2000 D02-2203-0070A adjacent to Safe Shutdown preclude impact potential.
70B, respectively. Panel D03-D02-2202-0070B Panels D03-2203-70A & B RESOLUTION #8 2203-70B is also bolted to D02-0902-0039 the adjacent panel 903-27 D02-0902-0047
- 2) Repair/Replace Bolt (Ref. ECN No. 12- 00854E).
D03-0903-0047 RESOLUTION #14 The remaining panels have D03-0903-0032 been bolted to adjacent panels by modification EC 7528 & WO 99134628 (Unit
- 2) and EC 7529 & WO 99134630 (Unit 3).
- 2) No actions are required. A subsequent walkdown has
- 2) 5/6/1999 verified that all bolts are tightened in place.
Table G-1 Page 11 of 33 G-12
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Panel Panel not bolted to adjacent Determine whether or not The "low boy" console 10/13/2002 D02-0902-0046 "low boy" console.
panel(s) contains essential (economic generation control relays. If they do, connect (EGC) panel) has been (bolt) panels together to retired and removed via preclude impact potential.
modification EC 7998 & WO RESOLUTION #8 99204714.
Panel
- 1) One anchor projected out
- 1) The loose anchor has been
- 1) Condition resolved in
- 1) 6/1996 D02-0902-0028 and loose.
fixed.
original USI A-46 report. The
- 2) There is 1/4" gap RESOLUTION #14 loose anchor has been fixed.
between the panel and the
- 2) Shim the gap to close it.
- 2) No actions are required. A surface of the concrete and subsequent walkdown found
- 2) 5/6/1999 panel contains essential RESOLUTION #6 the panel to be true level and relays.
- 3) Develop realistic, median any gap between the
- 3) Anchorage capacity less amplified floor spectra to concrete and panel to be than demand.
potentially reduce seismic insufficient to create an demand to an acceptable level, interaction.
RESOLUTION #11
- 3) Additional evaluation of the 3) panel determined its HCLPF 03/31/2000 capacity to be > 0.3g.
Table G-1 Page 12 of 33 G-13
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Panel
- 1) Panel is not bolted to
- 1) Determine whether or not
- 1) The panel contains
- 1) 9/26/2000 D03-0903-0033 adjacent panel.
panel(s) contains essential essential relays. Modification
- 2) There is 1/8" gap relays. If they do, connect EC 7529 & WO 99134630 between the panel and the (bolt) panels together to bolted the panel to adjacent surface of the concrete and preclude impact potential.
panel.
panel contains essential RESOLUTION #8
- 2) No actions are required. A
- 2) 5/6/1999 relays.
- 2) Shim the gap to close it.
subsequent walkdown found the panel to be true level and RESOLUTION #6 any gap between the concrete and panel to be insufficient to create an interaction.
Cooler The attached piping may not Coolers are rod hung and thus Modifications to laterally Unit 2 D03-5746-A ----
have enough flexibility, flexible. Laterally restrain restrain coolers to preclude 10/25/2001.
H15 coolers to preclude piping piping rupture potential have Unit 3 D03-5746-B ----
rupture potential or evaluate been completed. EC 7619 &
10/20/2002.
H15 effects of loss of service water WO 99188333 (Unit 2) and D02-5746-A ----
inventory and loss of cooling EC 18034 & WO 99126056 H15 capability.
(Unit 3).
D02-5746-B ----
RESOLUTION #7 H15 Battery Charger Anchorage is inadequate (2 Equipment has been modified Condition resolved in original 12/23/96 D03-8300--3---
clips),
to improve anchorage (Mod IPEEE report. Modification B05 E12-3-96-225).
El12-3-96-225 & WO RESOLUTION #9 96097752 has improved anchorage of the battery charger.
Table G-1 Page 13 of 33 G-14
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Battery Charger Unanchored.
Equipment has been modified Condition resolved in original Unit 2/3 DOO-83250-0---
to improve anchorage (Mod IPEEE report. Battery 01/09/97 B05 E12-0-96-213 & E12-2-96-236).
chargers have been modified Unit 2 D02-83250-2---
RESOLUTION #9 to improve anchorage 01/21/97 B05 (Modifications E12-0-96-213
& WO 96097748 and E12 96-236 & WO 96097749).
Vertical Pump Nozzle loads should be Provide nozzle loads for Pump anchorage evaluations 3/27/98 D02-1502-A ----
considered in the ANCHOR evaluation, have been performed with P30 evaluation but information RESOLUTION #9 inclusion of nozzle loads D02-1502-B ----
on nozzle loads is (Ref. revision 1 of SEWS for P30 incomplete, pumps).
D02-1502-C ----
P30 D02-1502-D ----
P30 Horizontal Pump Piping vertically supported Provide nozzle loads for Pump anchorage evaluations 3/27/98 D03-1501-but has very little lateral evaluation, have been performed with 0044AP30 restraint and therefore RESOLUTION #9 inclusion of nozzle loads D03-1501-piping loads should be (Ref. revision 1 of SEWS for 0044BP30 considered in evaluating the pumps).
D03-1501-anchorage but information 0044CP30 on nozzle loads is D03-1501-incomplete.
0044DP30 Table G-1 Page 14 of 33 G-15
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Valve Did not meet GIP offset Valve extended operator Calculation CE091.0208 04/14/94 D02-2301-0005-rules.
accelerations from IE79-14 shows all valves have greater V20 piping analysis to be obtained than 0.3g capacity.
D03-2301-0005-and used in the evaluation.
V20 D03-2301-0008-RESOLUTION #11 V20 Valve AOVs are supported off 1/2" Perform more rigorous analysis The 1/2" diameter tubing has 8/2/1999 D02-8501 -
diameter tubing.
and/or modify support of the been qualified based on 0005AV05 valve.
subsequent evaluation (Ref.
D02-8501 -
- vaLve, sbqeDOC ID #5995877).
0005BV05 RESOLUTION #11 Valve The condulet coming from Repair condulet.
Condulet cover has been 12/1997 D02-0302-the valve was open RESOLUTION #14 installed. Condition resolved 0019AV27 exposing the wires.
in original IPEEE report (Work Request 94038586).
Horizontal Pump Unrestrained emergency Positively secure emergency A walkdown has confirmed 5/6/1999 D02-5203 ------ light #209 (battery powered)
- light, that the light has been P30 is overhead.
positively secured.
D03-5203 ------
RESOLUTION #3 P30 I
I I
I Table G-1 Page 15 of 33 G-16
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Switchgear
- 1) Spare breakers are too
- 1) Relocate spare breakers.
- 1) The spare breakers have
- 1) 5/1996 D02-6723 ------ close.
RESOLUTION #5 been relocated. Condition S35
- 2) Open hooks on light 2)resolved in original IPEEE D02-6724 ------ fixtures is overhead.
report.
$35 RESOLUTION #2
- 3) Panel 2-6724 is not
- 2) The S-hooks have been bolted to adjacent panels.
- 3) Not applicable. Condition 2Te Sooksohve b
n 2)5/1996 reoledinorgialIPEE closed. Condition resolved in 2 /
9 resolved in original IPEEE original IPEEE report.
report.
RESOLUTION #8
- 3) Condition resolved in
- 3) 4/12/1996 original IPEEE report. No actions are required. A subsequent walkdown verified that the panels are bolted together.
Switchgear
- 1) A safety equipment locker
- 1) Positively anchor locker or
- 1) The locker has been
- 1) 5/1996 D02-67231 ----- immediately adjacent to re-locate it.
relocated. Condition resolved S35 switchgear is an interaction RESOLUTION #5 in original IPEEE report.
D03-67341 ----- hazard.
S35
- 2) Close upper and lower sight
- 2) Condition relosved in
- 2) PCB storage tank behind glass valves to prevent loss of IPEEE, Rev. 1 report. Sight
- 2) 3/31/2000 switchgear is rod hanger oil if the glass breaks, or glass valves have been restrained at mid-height. It restrain bottom of tanks to closed to prevent loss of oil if is a flooding hazard preclude it from moving, the glass breaks.
because of sight glass at bottom of tank and essential RESOLUTION #6 relays inside the switchgear.
Table G-1 Page 16 of 33 G-17
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Panel
- 1) Overhead heater has only
- 1) Repair overhead heater
- 1) The heater support has
- 1) 8/15/1997 D03-2203-0073A support rod and should have support.
been repaired in accordance D03-2203-0073B two. Thus, it is an impact RESOLUTION #14 with WR 960044408.
hazard.
- 2) Close lighting S-hook.
- 2) The S-hook has been
- 2) Overhead lighting has closed. Condition resolved in
- 2) 5/1996 one open S-hook and is an RESOLUTION #2 original IPEEE report.
impact hazard.
- 3) Seismically evaluate fire
- 3) Overhead fire line is piping and determine status.
- 3) No actions are required.
judged not to be seismically RESOLUTION #7 Fire piping has been
- 3) 8/26/1999 judgfed nt to be seismialy seismically evaluated to be quaflooding hazard because of adequate (ref. DOC ID#
essential relays inside 6012466).
panel.
Valve Suction line of pump (4-1/2" Restrain line so it cannot The suction line of the pump 10/9/2003 D03-0302-in diameter) touches the impose force onto the valve, has been moved away from 0157AV05 valve yoke.
RESOLUTION #6 the valve yoke to preclude interaction. (Ref. WO
Table G-1 Page 17 of 33 G-18
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Valve
- 1) Potential impact with
- 1) Determine piping
- 1) No actions are required.
1)
D03-1501-nearby piping, grating or displacement from piping Valve 3-1501-32B has been Valve 0032BV20 steel.
analysis and compare to evaluated for its yoke 3-1501-32B D02-1601-0023--
available clearance, displacement and found to be 8/4/1999 V27
- 2) Valve 2-1601-23 is wti h
vial laac D03-0203-missing a bolt.
RESOLUTION #6 within the available clearance Valve with the grating (Ref. DOC 2-1601-23 0002BV05
- 2) Install missing bolt.
ID# 5996462). Valve 2-1601-08/14/2003 RESOLUTION #14 23 was replaced per EC 331868 & WO 407776 and Valve Valve 3-0203-2B 3-0203-2B is qualified per per DRE0O-calculation DRE00-0061.
0061 08/23/2000
- 2) Bolt has been installed in accordance with Work 2)6/6/1998 Request 950096788-01.
Panel Base channel is secured to Modify anchorage to an Anchorage modified to 1/17/2001 D02-2252-0010 floor by 4 friction clips (one acceptable, positive anchorage positive anchorage design via in each corner) design.
Neighboring Neutral RESOLUTION #10 Grounding Cabinet is secured by friction clips.
Table G-1 Page 18 of 33 G-19
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Panel Panel is right against a Determine whether or not The panel has been bolted to 1/24/2002 DOO-NGC column support on one side panel(s) contains essential the adjacent panel and to the and an adjacent panel on relays. If they do, connect column support via the other.
(bolt) panels together to modification EC 7663 & WO preclude impact potential.
99135800.
Insert neoprene or like material between column and panel, or positively secure panel to column.
RESOLUTION #6 Panel Panel is too close to two Determine whether or not The panels contain essential 9/14/2001 DOO-2223-0033 adjacent panels that it is not panel(s) contains essential relays. The panels have D00-2223-0041 bolted to.
relays. If they do, connect been bolted together via (bolt) panels together to modification EC 7662 & WO preclude impact potential.
99135801.
RESOLUTION #8 Damper
- 1) Damper hung in poorly
- 1) Repair ductwork.
- 1) The duct support rod has 1)
D03-5772-0102-supported ductwork (already RESOLUTION #14 been replaced in accordance 10/23/1996 D05 sagging).
- 2) Close S-Hooks.
with WR 960043286.
- 2) Overhead light has open RESOLUTION #2 S-Hooks.
- 2) The S-hooks have been closed. Condition resolved in
- 2) 5/1996 original IPEEE report.
Table G-1 Page 19 of 33 G-20
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Battery Rack
- 1) There are spaces
- 1) Tighten battens so they are 1 & 2) Determination of 1 & 2) Unit 2 D02-9802-A ----
between the batteries and snug (1/16" or less gap) or qualified life not required.
03/20/1998 B04 along the front and back of insert spacers to make up the New batteries have been Unit 3 D02-9802-B ----
the batteries.
gaps.
installed in accordance with 04/22/1997 B04
- 2) The battery cells are RESOLUTION #12 modifications M12-2-95-003 D03-9802-A----
2).Te bhanrycelare RSUI
- 12
& WOs 97077161 / 97094589 B04 more than 10 years old.
- 2) Determine qualified life of and D03-9802-B ----
cells or replace.
M12-3-95-003 & WOs B04 RESOLUTION #13 95068434 with proper spacers.
Battery Rack The Styrofoam, on the front Insert "full height" Styrofoam Repairs to insert proper 10/19/1999 D02-8300--BC--
and back, is not full-height spacers, or secure (glue or tie) spacers have been B04 and could easily slip out spacers to rack (or battery completed. Repairs D02-83250 ----- during a seismic event, cells) so that they cannot slide implemented via Engineered B04 out.
Repairs (Ref. DOC ID#
D03-8300--BC--
RESOLUTION #12 6043969).
B04 D03-83250 -----
B04 Table G-1 Page 20 of 33 G-21
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date CCSW Pump Bolt type is not covered by Capacity of Cinch Anchor is Condition resolved in original 12/1997 Cooler the GIP - Cinch Anchor.
based on "Lead Expansion IPEEE report. See preceding D02-5700-Anchor Load Capacity in column for details.
0030AH15 Reactor Building at the D02-5700-Savannah River Site",
0030BH15 Westinghouse Savannah River D02-5700-Company, RTR-2661, Aug. 15, 0030CH15 1989 (Ref. 23). The resulting D02-5700-anchorage capacity was shown 0030DH15 to exceed the design basis D03-5700-seismic demand loads and 0030AH15 Condition is resolved.
D03-5700-RESOLUTION #10 030BH 157 D03-5700-0030CH15 D03-5700-0030DH15 Switchgear Spare breakers which are Secure or re-locate spare Spare breakers have been 5/1996 D03-67331 ------ unanchored are potential breakers.
relocated. Condition S35 interaction hazards.
RESOLUTION #5 resolved in original IPEEE report Vertical Tank Tank is supported by ring Evaluate ring foundation.
The ring foundation has been 04/11/1998 DOO-3303-A----
foundation.
RESOLUTION #9 qualified based on evaluation T05, D00-3303-B-(Ref. Stevenson &
---T05 Associates Calculation 98Q4006-C-002).
Table G-1 Page 21 of 33 G-22
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Panel Base channel is secured to Modify anchorage to an The panel anchorage has 1/17/2001 D02-2252-0021 floor by 4 friction clips (one acceptable, positive anchorage been modified to a positive in each corner) design.
anchorage design via Neighboring Neutral RESOLUTION #10 modification EC 7663 & WO Grounding Cabinet is 99135802.
secured by friction clips.
Pressure Indicators are supported by Anchor indicators to wall.
Condition has been deleted 3/30/2000 Indicators piping and not attached to RESOLUTION #6 from the Program. The 2/3-4041-1A & 1B wall which could result in pressure indicators are seismic interaction, associated with Refuse Pumps. The Refuse Pumps are not being credited for Isolation Condenser makeup for the loss of dam failure scenario; therefore, the pressure indicators are not required for safe shutdown or included in the SPEL.
Iso Cond Heat Isolation condenser has no Condition resolved (see S&L No actions are required. The 10/27/1997 Exchangers anchor bolts at outboard calculation 8900-15-EO-S) existing configuration has D02-1302---H15, piers. Load taken by center been verified to be adequate D03-1302 ---H15 pier.
14per S&L calculation 8900 RESOLUTION # 14 EO-S.
Condition resolved in original IPEEE report Table G-1 Page 22 of 33 G-23
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Heat Exchanger Support steel requires Completed Modification of Condition resolved in original
- 1) 04/03/96 D02-1503-A ----
evaluation, support steel (Mods:
IPEEE report. See preceding
- 2) 04/03/96 H15
- 1) E12-2-95-242, WO 96021982 column & respective Work 3)09/15/96 D03-1503-A ----
- 2) E12-2-95-243, WO 96021981 Orders.
- 4) 09/12/96 H15 D02-1503-B ----
- 3) E12-3-95-258, WO 96030678 H15
- 4) E12-3-95-259, WO 96030680 D03-1503-B ----
RESOLUTION #9 H15 Accumulator The accumulator has one Install (repair) missing bolt.
No actions are required.
10/6/1999 D02-4798-A----
bolt missing.
RESOLUTION #14 Upon further review, the A10 accumulator is designed to be installed with one U-bolt.
A subsequent walkdown verified that the U-bolt is in place (Ref. DOC ID#
6034842).
Control Panel /
Neighboring Neutral Modify anchorage to an The anchorage of the Neutral 1/24/2002 DG Exciter Grounding Cabinet is acceptable, positive anchorage Grounding Cabinet has been D03-2252-0021-secured by friction clips.
design.
modified to a positive P06 RESOLUTION #10 anchorage design via EC 7664 & WO 99135800.
D02-2202-0006-Overhead light is only Fix overhead light The light has been secured 5/1996 P06 secured by one chain RESOLUTION #14 properly. Condition resolved in original IPEEE report.
Table G-1 Page 23 of 33 G-24
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Cable Tray &
An enveloping support in the This Condition is resolved by Condition resolved in original 07/01/1996 Conduit Raceway Unit 2 Battery Room area Condition analysis. A limit IPEEE report per calculation Systems was chosen for limited analysis per Section 8.4.8 of 93C2806.4-C-002.
LAR001 analytical review. The Reference 14 was performed support is a 4-tier, rod hung and the hanger passes.
trapeze supporting 4 trays.
Dresden rod fatigue data The support has two obtained from actual cyclic different types of ceiling testing of the Dresden field anchorages: embedded threaded rods including the strut and weldment to weldment anchorage plate from building steel. Loads SEP Project 8050 (Ref. 22) was exceed the allowables for used to evaluate the rods.
the rod fatigue check.
Based on the "Generic Rod Acceptability Curves", it was shown that the Dresden rods will sustain the SSE demand loads.
RESOLUTION #15 Table G-1 Page 24 of 33 G-25
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Cable Tray &
An enveloping support in the This Condition is resolved by Condition resolved in original 07/01/1996 Conduit Raceway Auxiliary Electrical Condition analysis. A limit IPEEE report per calculation Systems Equipment Room was analysis per Section 8.4.8 of 93C2806.4-C-002 LAR004 chosen for limited analytical Reference 14 was performed review. The support is a and the hanger passes.
four tier rod hung trapeze RESOLUTION #15 supporting 4 trays. The support has two different types of ceiling anchorages:
embedded strut and weldment to building steel.
The loads for the embedded strut version exceed the allowables for the vertical capacity check. The loads for the welded attachment to building steel version exceed, by a small amount, the allowables for the rod fatigue check and are considered acceptable.
Table G-1 Page 25 of 33 G-26
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Cable Tray &
The main "spine of the This Condition is resolved by Condition resolved in original 05/1996 Conduit Raceway cables connecting the Condition analysis. A limit IPEEE report.
Systems Reactor building with the analysis per Section 8.4.8 of LAR005 Control room. A large two-Reference 14 was performed bay system carrying 12-44" and the hanger passes.
trays in one bay (one side)
RESOLUTION #15 and 4-44" trays on the other side in a floor-to-ceiling system. The bolting connections at the ceiling connection (anchorage) do not pass the vertical capacity check.
Table G-1 Page 26 of 33 G-27
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Cable Tray &
An enveloping support in the This Condition is resolved by Condition resolved in original 07/01/1996 Conduit Raceway Unit 3 Turbine Building, El.
Condition analysis. A IPEEE report per calculation Systems 538, was chosen for limited redundancy and consequence 93C2806.4-C-002.
LAR006 analytical review. The analysis per Section 8.4.8 of support is a two tier, rod Reference 14 was performed hung trapeze supporting 2 and the hanger passes.
trays. The support Dresden rod fatigue data anchorage is weldment to obtained from actual cyclic building steel. The support testing of the Dresden field loads exceed the allowables threaded rods including the for the rod fatigue check.
weldment anchorage plate from SEP Project 8050 (Ref. 23) was used to evaluate the rods.
Based on the "Generic Rod Acceptability Curves", it was shown that the Dresden rods will sustain the SSE demand loads.
RESOLUTION #15 Table G-1 Page 27 of 33 G-28
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Cable Tray &
An enveloping support in the Use Blume Report methodology The worst case hangers have 05/05/1999 Conduit Raceway Unit 2 Turbine Building, El.
to qualify support for rod been reassessed for actual Systems 517, was chosen for limited fatigue.
tray loadings, spans and LAR007 analytical review. The RESOLUTION #15 configurations. Actual support is a four tier, rod loading and spans were hung trapeze supporting 4 found to be smaller than trays. The support those used in the original anchorage is an embedded assessment. The strut. The support loads assessment (S&A Calculation exceed the allowables for DRE99-0029) showed the the rod fatigue check.
worst case hangers were acceptable without modification.
Table G-1 Page 28 of 33 G-29
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Cable Tray &
An enveloping support in the This Condition is resolved by Condition resolved in original 05/1996 Conduit Raceway Reactor Building, El. 517, Condition analysis. A limit IPEEE report.
Systems was chosen for limited analysis per Section 8.4.8 of LAR008 analytical review. The Reference 14 was performed support is a two bay, three and the hanger passes.
tier/bay, rod hung trapeze Dresden rod fatigue data supporting 1 tray/tier. The obtained from actual cyclic support has two different testing of the Dresden field types of ceiling anchorages:
threaded rods including the embedded strut and weldment anchorage plate from weldment to building steel.
SEP Project 8050 (Ref. 23) was The loads for the embedded used to evaluate the rods.
strut version exceed the Based on the "Generic Rod allowables for the vertical Acceptability Curves", it was capacity check. The loads shown that the Dresden rods for the welded attachment to will sustain the SSE demand building steel version loads.
exceed the allowables for the rod fatigue check.
Cable Tray &
The support is a 1/2" field Determine actual weight per Outliner Resolved. Actual 03/16/1998 Conduit Raceway threaded rod trapeze foot of the bus duct and weight per foot of the conduit Systems supporting 16" dia. bus duct, compare to the 98 lbs/ft.
duct is < 20 lbs/ft compared LAR009 24" to "top tier'. The limiting capacity.
to 98 lbs/ft capacity (NDIT seismic capacity based on RESOLUTION #15 No. SEC-DR-98-046).
rod fatigue is 98 lbs/ft. The actual weight (amount of cable inside the conduit) is currently unknown.
Table G-1 Page 29 of 33 G-30
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Unit 2 Turbine The hangers at the entrance Determine if block wall capacity The wall capacity is no longer 11/15/1999 Building (including to the turbine building, east needs to be evaluated. If so required since the cable tray DIG Room), El.
of the truck bay, are rod determine the block wall is not supported off the wall 517 RACE010 hung on one side and bolted capacity.
per Doc ID 6065125. The to a strut embedded in a RESOLUTION #15 cable tray has been verified block wall on the other side.
to be adequate per the resolution to LAR007.
Diesel fuel Oil Sight glass interaction issue.
Perform additional evaluation.
Additional evaluation found 10/28/1996 Storage Day Tank RESOLUTION #6 the sight glass to be D00-5202-TO5 seismically adequate and there is no interaction issue (Ref. Rev. 1 of SEWS)
Drywell/Torus 3g analysis shows yoke Evaluate actual demand The valves have been 8/4/1999 Nitrogen Makeup overstress.
accelerations.
evaluated for actual demand Valves D02-1601-RESOLUTION#1 1 accelerations and found to be 0057-V20 and seismically adequate (Ref.
D03-1601-0057-DCC ID# 5996462).
V20 General Nearby gas bottle Revise Procedure DHP 0220-Procedure DHP 0220-02 has 7/30/2002 interaction. Procedure DHP 02 to address to address gas been superseded by 0220-02.
bottle interaction concerns.
Procedure SA-AA-122.
RESOLUTION #1 General Inadequate seismic Develop a new procedure or Procedure DAP 03-20, 6/7/2000 housekeeping procedure.
revise housekeeping procedure "Restraint of Portable DAP 03-11.
Equipment" has been revised RESOLUTION #5 to address seismic I housekeeping concerns.
Table G-1 Page 30 of 33 G-31
Dresden Generating Station Unit 3 1200108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Hydrogen Seal Oil Anchorage is inadequate.
Provide positive anchorage.
The panels' anchorage has Unit Panels D02-2257-been modified to positive 201/12/2001 7 and D03-2253-7 anchorage. Modification Unit 3 DCPs 9900205 (EC 7546 &
04/06/2000 WO 99102056) for Unit 2 and 9900204 (EC 7545 & WO 99102057) for Unit 3 Generator Core Monitors not anchored or Provide positive anchorage or The monitors have been Unit 2 Monitors D02-restrained have potential for restrain the monitors, restrained by modification 01/12/2001 5341-15 and D03-hydrogen leakage.
Unit 3 5341-15 WO 99102056) for Unit 2 and 04/06/2000 9900204 (EC 7545 & WO 99102057) for Unit 3.
Dresden Dam Seismically qualified path for Provide a path from Unit 2 Modification EC 341458 (WO 10/28/2003 failure concern Isolation Condenser Diesel Generator Cooling Water 00558712) provided a tie-in makeup water is not system (seismically qualified) to from Unit 2 Diesel Generator available.
Isolation Condenser makeup Cooling Water to Isolation pumps.
Condenser makeup pumps.
Dresden Dam Alternate path for makeup Provide an alternate path to Modifications to provide tie-Unit 2 failure concern water to Units 2 and 3 CCSW heat exchangers.
ins to CCSW heat 11/4/2003 CCSW heat exchangers exchangers have been Unit 3 does not exist.
completed via EC 341459 11/4/2003 (WO 558719) for Unit 2 and EC 341461 (WO 558720) for Unit 3.
Table G-1 Page 31 of 33 G-32
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Iso Condenser Isolation Condenser Provide anchorage or seismic Seismic restraints for the 8/25/2003 Makeup Pump makeup pump diesel oil day restraints for the diesel oil day Isolation Condenser makeup Diesel Oil Day tanks and batteries are not tank batteries, pump diesel oil day tanks and Tanks 2/3-5215-A anchored.
batteries been added via and 2/3-5215-B modification EC 341881 (WO and batteries 2/3-557293) 4312-4A and 2/3-43123B Relays (Various)
Various vulnerabilities such Perform additional evaluation of Evaluation of various relay Calc as low ruggedness relays, the relays for seismic adequacy models such as General DRE99-0003 demand exceeds capacity, or replace them with qualified Electric HFA, HGA, IAV and 11/1/1999 no GERS, etc.
relays.
IAC and other manufacturers' Calc relays was completed.
DRE99-0020 Calculations DRE99-0003 5/21/1999 and DRE99-0020.
Relays that did not pass evaluation were replaced with qualified relays via the following modifications.
Cardox relays and timers 9/27/2003 Model H45 and H47 for EDGs. Modification EC 7535 (W099127497).
Relays associated with Unit 9/30/2003 2/3 EDG such as GE Model CFF and HFA, and EMD Model 8263337. Modification EC 8259 (WO 541917).
Table G-1 Page 32 of 33 G-33
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Equipment ID Description of Condition/
IPEEE Report Proposed Actual Resolution of Condition Resolution Vulnerability Resolution of Condition Date Relays associated with Unit 2 8/12/2003 EDG such as GE Model CFF and HFA, and EMD Model 8263337. Modification EC 8260 (WO 545850).
Relays associated with Unit 3 9/8/2003 EDG such as GE Model CFF and HFA, and EMD Model 8263337. Modification EC 8261 (WO 545846).
Removed Square D pressure 11/4/2003 switch 2-2303-PS4 form HPCI system. Modification EC 8262 (WO 522055).
GE relays Model IAV and 10/23/2003 HFA in switchgear 29.
Modification EC 8263 (WO 558722).
Unit 3 auto blowdown relays, 12/19/2003 GE Model HFA in panel 3-2203-32. Modification EC 8264 (WO 522226).
Table G-1 Page 33 of 33 G-34
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Annex A NRC Transmittal Update 1 Ai
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Contents of Annex A A l Introduction.........................................................................................................
A M-A 1.1 P u rp o s e..............................................................................................................
A l-1 A1.2 Background..................................................................................................
A1-2 A1.3 Plant Overview.............................................................................................
Al-2 A1.4 Approach......................................................................................................
Al-2 A1.5 Conclusion.....................................................................................................
AI-2 A2 Seism ic Licensing Basis..........................................................................................
A2-1 A3 Personnel Qualifications......................................................................................
A3-A3.1 Overview............................................................................................................
A3-1 A3.2 Project Personnel...............................................................................................
A3-1 A3.2.1 Stevenson & Associates Personnel.........................................................
A3-2 A3.3 Additional Personnel............................................................................................
A3-2 A4 Selection of SSCs.....................................................................................................
A4-1 A5 Seism ic W alkdowns and Area W alk-Bys..................................................................
A5-1 A5.1 Overview............................................................................................................
A5-1 A5.2 Seism ic W alkdowns............................................................................................
A5-1 A5.2.1 Adverse Anchorage Conditions..............................................................
A5-2 A5.2.2 Configuration Verification........................................................................
A5-2 A5.2.3 Adverse Seism ic Spatial Interactions......................................................
A5-2 A5.2.4 Other Adverse Seismic Conditions........................................................
A5-2 A5.2.5 Conditions Identification during Seism ic W alkdowns...............................
A5-2 A5.3 Area W alk-Bys....................................................................................................
A5-2 A5.3.1 Conditions Identification during Area W alk-Bys.......................................
A5-3 A5.4 Supplemental Information on Electrical Cabinet Inspections...............................
A5-3 Aii
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 A6 Licensing Basis Evaluations.................................................................................
A6-4 A7 IPEEE Vulnerabilities Resolution Report............................................................
A7-4 A8 Peer Review...............................................................................................................
A8-A9 References................................................................................................................
A9-Appendices AA Project Personnel Resumes and SWE Certificates................................................
AA-1 AC Seismic Walkdown Checklists (SWCs)...................................................................
AC-1 AD Area Walk-By Checklists (AWCs)............................................................................
AD-1 AE Plan for Future Seismic Walkdown of Inaccessible Equipment............................. AE-1 AF Peer Review Report...................................................................................................
AF-1 AG IPEEE Vulnerability Status.......................................................................................
AG-1 Tables Table A3-1. Personnel Roles.........................................
..................... A3-1 Table A5-3. Conditions Identified during Area Walk-Bys.............................................
A5-4 Table AC-1. Summary of Seismic Walkdown Checklists............................................. AC-2 Table AD-1. Summary of Area Walk-By Checklists...................................................... AD-2 Table AE-2. Supplemental Cabinet Internal Inspection List............................................
AE-2 Aiii
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 A I Introduction A1.1 PURPOSE This updated transmittal report is being provided in compliance with the requirements contained in Enclosure 3 of the NRC 50.54(f) letter dated March 12, 2012 (Ref. 13). This new report section, Annex A, contains the results of the follow-on inspection activities that have been completed to address commitments contained in Exelon letter to the NRC, "180-day Response to NRC Request for Information Pursuant to 10 CFR 50.54(f)
Regarding the Seismic Aspects of Recommendation 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident," dated November 27, 2012 (RS-12-167). Annex A, includes follow-on seismic walkdown results associated with NRC Commitment Nos. 2 and 4 listed in Enclosure 3 of the above Exelon letter.
Additionally, the update includes the current status of the resolution of conditions found during the initial seismic walkdowns and Area Walk-Bys as documented in Tables 5-2 and Table 5-3, respectively, from Enclosure 2 of the above Exelon letter.
Commitment No. 2, for the completion of the 15 remaining inspection (SWEL) items previously deferred due to inaccessibility listed in Table E-1, has been completed. All 15 inspection items were completed by the commitment date of Fall 2012 and the results are documented in this update.
Commitment No. 4, supplemental internal inspections of 27 Dresden Unit 3 electrical cabinets identified in Table E-2, remains open. This update documents the completion of 1 of the 27 inspection items which was originally scheduled for completion during D3R26 but became available for inspection in November 2012. Also, two (2) items in Table E-2 of the initial report were listed in error and are removed in this updated report.
These items are Transformer 38 (D03-7338 ------
T10) and the Turbine Pressure Switch (D03-2380 ------
PSH), which are electrical equipment that do not fall into the same category as electrical cabinets. The remaining 24 internal inspection items, listed in Table AE-2 in this Annex A, are to be completed on or before the original commitment date of Winter 2022 (D3R27). A subsequent NRC transmittal will be issued to document results of these internal inspections and the completion of Commitment No. 4.
The initial NRC Transmittal report documented that all conditions identified during the seismic walkdowns, and listed in Table 5-2, were complete. No new conditions were identified during follow-on seismic walkdowns.
The initial NRC Transmittal report documented that 4 conditions identified during the Area Walk-Bys, and listed in Table 5-3, remained open. This update documents that all 4 conditions are now resolved with all follow-on actions complete, as listed in Table A5-3 of this Annex A. One (1) new condition was found during follow-on Area Walk-Bys. This condition was resolved with all actions complete, also listed in Table A5-3.
Al-I
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Annex A, includes updates to each section of the initial report where the status has changed or new information is available in accordance with Section 8 of EPRI 1025286, "Seismic Walkdown Guidance - For Resolution of Fukushima Near Term Task Force Recommendation 2.3 Seismic".
A
1.2 BACKGROUND
See Section 1.2 A1.3 PLANT OVERVIEW See Section 1.3 A1.4 APPROACH See Section 1.4 A
1.5 CONCLUSION
As of December 31, 2012, Seismic Walkdowns have been performed at the Dresden Generating Station Unit 3 on all 15 items deferred due to inaccessibility along with 1 of the supplemental internal inspections of electrical cabinets, in accordance with the NRC endorsed walkdown methodology. Area Walk-Bys were also completed, as required, during these follow-on activities. No degraded, nonconforming, or unanalyzed conditions that required either immediate or follow-on actions were identified.
Additional follow-on activities required to complete the efforts to address Enclosure 3 of the 50.54(f) letter include inspection of the remaining 24 supplemental electrical cabinets to be completed on or before the original commitment date of Winter 2022 (D3R27), as listed in Table AE-2 of this Annex A.
As of December 31, 2012, all conditions identified during the Area Walk-Bys, as documented in IRs listed in Table 5-3, and Table A5-3 of this Annex A, have been corrected.
The updated completion status for the previous IRs, as well as the new IR identified during follow-on Area Walk-Bys, is shown in Table A5-3 in Section A5 of this Annex A.
A1-2
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 A2 Seismic Licensing Basis See Section 2 of initial report, no new licensing basis evaluations resulted from the follow-on walkdown activities.
A2-1
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 A3 Personnel Qualifications A3.1 OVERVIEW This section of the report identifies the personnel that 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 guidance document.
Information included in Appendix A, and Appendix AA in this Annex A, provide detail on each person's qualifications for their role.
A3.2 PROJECT PERSONNEL Table A3-1 below summarizes the names and corresponding roles of personnel who participated in the NTTF 2.3 Seismic Walkdown effort.
Table A3-1. Personnel Roles Equipment Seismic Licen Neelcient Plant Walkdown Basing IPEEE Peer Name Selection Basis Engineer Operations Engineer Reviewer Reviewer Reviewer (SWE)
Reviewer A. Perez X
K. Hull X
T.K. Ram X(1)
J. Griffith X
X M. Wodarcyk X
X Mohammad Hosain X(2)
(Exelon) (4)
W. Djordjevic X(3)
D. Hamilton X
(Exelon)
B. Weight (Exelon)
X X
X(5)
Notes:
- 1. Peer Review Team member for SWEL review only.
- 2. Peer Review Team Leader for follow-on activities only.
- 3. Peer Review Team Leader for SWEL.
- 4. Personnel for follow-on activities only.
- 5. For follow-on activities only.
A3-M
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 A3.2.1 Stevenson & Associates Personnel See Section 3.2.1, no new S&A personnel participated in the follow-on activities.
A3.3 ADDITIONAL PERSONNEL See Section 3.3, the following additional Exelon personnel participated in the follow-on activities:
Exelon Engineering staff member Mr. Mohammad Hosain is the Peer Review Team Leader for updated transmittal #1. Mr. Hosain is a Mechanical Engineer, Level 4 and has worked at Dresden as an Exelon employee since 1997. He has a Master of Science degree in Mechanical Engineering. He holds an EPRI SQUG certification. He has over 30 years experience in seismic and environmental qualification of plant equipment. He is the owner of the station Equipment Environmental Qualification Program and Subject Matter Expert on seismic and environmental qualification at Dresden Station. He is also a mentor/instructor for the certification on this subject. Mr. Hosain has been involved in all aspects of plant modification/ configuration change activities at Dresden. Activities he performs include: Equipment Dynamic Qualification Test/Analysis reviews and SQUG walkdown/seismic evaluations among other seismic related activities.
A3-2
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 A4 Selection of SSCs See Section 4 of initial report, no changes were made to the SWEL for the follow-on walkdowns.I A4-1
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 A 5 Seismic Walkdowns and Area Walk-Bys A5.1 OVERVIEW Follow-on Seismic Walkdowns and Area Walk-Bys were conducted by a two (2) person team of trained Seismic Walkdown Engineers (SWEs), in accordance with the EPRI guidance document during the fourth quarter of 2012. The Seismic Walkdowns and Area Walk-Bys are discussed in more detail in the following sub-sections.
Consistent with the EPRI guidance document, Section 4: Seismic Walkdowns and Area Walk-Bys, the SWEs used their engineering judgment, based on their experience and training, to identify potentially adverse seismic conditions. Where needed, the engineers were provided the latitude to rely upon new or existing analyses to inform their judgment.
The SWEs conducted the Seismic Walkdowns and Area Walk-Bys together as a team.
During the evaluations, the SWEs actively discussed their observations and judgments with each other. The results of the Seismic Walkdowns and Area Walk-Bys reported herein are based on the comprehensive agreement of the SWEs.
A5.2 SEISMIC WALKDOWNS These follow-on Seismic Walkdowns focused on the seismic adequacy of the items previously deferred due to inaccessibility listed in Table E-1 of the initial report. The Seismic Walkdowns also evaluated the potential for nearby SSCs to cause adverse seismic interactions with the items being inspected. 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 follow-on Seismic Walkdowns were documented in Appendix AC of this Annex A, using the Seismic Walkdown Checklist (SWC) template provided in the EPRI guidance document. Seismic Walkdowns were performed and SWCs were completed for all 15 items identified in Table E-1 of the initial report. Additionally, photos have been included with most SWCs to provide a visual record of the item along with any comments noted on the SWC. 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.
The following subsections describe the approach followed by the SWEs to identify potentially adverse anchorage conditions, adverse seismic interactions, and other adverse seismic conditions during the Seismic Walkdowns.
A5-1
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 A5.2.1 Adverse Anchorage Conditions See Section 5.2.1, no adverse anchorage conditions were identified during the follow-on walkdowns.
A5.2.2 Configuration Verification See Section 5.2.2, no additional configuration verification was required and none was performed during the follow-on walkdowns.
A5.2.3 Adverse Seismic Spatial Interactions See Section 5.2.3, no adverse seismic spatial interactions were identified during the follow-on walkdowns.
A5.2.4 Other Adverse Seismic Conditions See Section 5.2.4, no other adverse seismic conditions were identified during the follow-on walkdowns.
A5.2.5 Conditions Identification during Seismic Walkdowns No adverse conditions were identified during the follow-on walkdowns.
A5.3 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 items being inspected. Vicinity is generally defined as the room containing the 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 item. Additional vicinity associated with these follow-on seismic walkdowns but not covered in Appendix D, is described on the Area Walk-By Checklist (AWC), shown in Appendix AD of this Annex A. A total of 9 additional AWCs were completed for Dresden Unit 3 as a result of these follow-on walkdowns.
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 Exelon Procedure MA-AA-796-024, Scaffold Installation Inspection and Removal Seismic housekeeping was examined to meet station procedure 119.5, Loose Equipment Storage A5-2
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 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. Therefore, the Area Walk-By took significantly less time than it took to conduct the Seismic Walkdowns described above. 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 were documented on the AWCs included in Appendix AD of this Annex A. A separate AWC was filled out for each area inspected. A single AWC was completed for areas where more than one 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 Section 5.3 of this report.
A5.3.1 Conditions Identification during Area Walk-Bys One (1) condition was identified during the Area Walk-Bys associated with the follow-on walkdowns and entered into the Corrective Action Program (CAP). The new condition was identified as Item ID Outage-8 (see Table A5-3 of this Annex A). Corrective actions were completed to address this condition identified during the follow-on Area Walk-Bys, and listed in Table A5-3 of this Annex A. No potentially adverse seismic conditions were identified that resulted in a seismic licensing basis evaluation. No seismically-induced flooding or spray interactions were identified during the Area Walk-Bys. No seismically-induced fire interactions were identified during the Area Walk-Bys.
Per Section 5.3.1 and Table 5-3, during the previous seismic walkdowns nine (9) conditions were identified and entered into the CAP. Corrective actions were completed to address five (5) of the nine (9) conditions. Subsequent to the issuance of the initial report, corrective actions were completed to address the remaining four (4) conditions.
Table A5-3 of this Annex A provides an updated summary of the conditions and the status of the corrective actions to address these conditions.
A5.4 SUPPLEMENTAL INFORMATION ON ELECTRICAL CABINET INSPECTIONS See Section 5.4 of the initial report. The follow-on walkdowns completed 1 of the 27 supplemental internal electrical cabinet inspections listed in Table E-2 of the initial report. No conditions were identified. Also, two (2) items in Table E-2 of the initial report were listed in error and are removed in this updated report. These items are Transformer 38 (D03-7338 ------
T10) and the Turbine Pressure Switch (D03-2380 ------
PSH), which are electrical equipment that do not fall into the same category as electrical panels or cabinets. These components are not applicable for internal electrical cabinet inspection and, therefore, removed from the updated list in Table AE-2 of this Annex A.
The remaining 24 items remain open items in Table AE-2 of this Annex A. These supplemental internal electrical cabinet inspections are to be completed on or before the original commitment date of Winter 2022 (D3R27).
The Seismic Walkdown Checklists (SWC) for the one (1) cabinet (ID D03-7338 --....
S35) is documented in Appendix AC of this Annex A to indicate the results of the supplemental internal inspection.
A5-3
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Table A5-3. Conditions Identified during Area Walk-Bys Actions Action Complete Item ID Description of Issue Request ID (Yes/No, (IR)
See Notes 1 & 2)
NRC identified an electrical conduit support outside the designated Walk-By boundary that has one of two wall mounted brackets not flush with the wall. The support is U-shaped. Three conduits are attached to this support.
The location of the subject support is between L-50 and K-50 approximately 15' above floor elevation 545'-0".
The subject support is also above valve 3-3917-B-501.
The bracket that is not flush is not a concern because IR 1396558 AWC-the other end of the support is judged capable of Yes U3-23 carrying the whole load as a hanger. The bracket that is W 1568795 not flush would be in compression so flush mount is not an issue. In addition, there are multiple additional properly installed conduit supports in the run that are immediately adjacent to the subject support. The system is adequately supported with no adverse effects based upon inspection and engineering judgment.
Updated Actions:
Shims were installed to provide solid bearing.
Anchor plate of a floor mounted piping support near valve 3-1201-124B missing a nut on one of four anchors. The support is located at the U3 RWCU Demin Valve Gallery. However, the other three anchors AWC-have nuts securely torqued so the support is structurally Yes U3-30 adequate by engineering judgement. Also, this support WO 1567542 is on a non-safety related system.
Updated Actions:
The missing nut was installed.
A5-4
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Actions Action Complete Item ID Description of Issue Request ID (Yes/No, (IR)
See Notes 1 &2)
NRC identified a 3" diameter pipe run with two knee-brace type wall mounted bracket supports missing one anchor bolt each. The 3" pipe has Spent Fuel Pool (SFP) drain valve 3-1901-8 in the line. Each support is intended to have two anchor bolts and only the bottom bolt in each support is installed. The location of the subject supports is on the north wall above elevation 570 on the high dose side of the SFP fence in a High Radiation Locked boundary. The 3" pipe is 3-1913-3-L IR 1396568 AWC-per P&ID drawing M-362.
Yes U3-24 W
574 According to the P&ID drawing, the subject pipe drains WO 1567540 the SFP on the dry side of the gate and is currently isolated. This was confirmed by the shift manager and unit supervisor. Therefore the deficiency does not affect the safety related function of the equipment.
Updated Actions:
Per EC Eval 391482, the two knee brace type pipe supports were not needed and they were removed.
A5-5
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Actions Action Complete Item ID Description of Issue Request ID (Yes/No, (IR)
See Notes 1 & 2)
AWC-U3-24 NRC identified a 2.5" diameter conduit run with a ceiling mounted bracket support that is missing one anchor bolt. The location of the subject support is in the ceiling above elevation 570' on the high dose side of the SFP fence in a High Radiation Locked boundary. The conduit and subject support are above valve 3-1601-23.
The conduit run is vertical from an existing junction box that is supported from the floor by a stanchion underneath. The majority of this vertical conduit run is carried by the floor support. The ceiling support with a missing anchor bolt is immediately after a 90 degree bend where it turns horizontal below the ceiling. A second ceiling support is located approximately 4' from the support with the missing anchor bolt. This second ceiling support is properly installed with both anchors intact.
According to Table 1.2 in specification K-4081 the maximum acceptable horizontal span between supports is 9'-0". The vertical run is well supported and acts as an end support for the beginning of the horizontal run.
The properly installed ceiling hanger may be considered the next support on the horizontal run without regard to the improperly installed support. Since the horizontal span between the vertical conduit run and properly installed support is less than 9'-0", the missing anchor deficiency does not affect the safety related function of the equipment.
Updated Actions:
The missinq anchor bolt was installed.
IR 1396571 WO 1567539 Yes A5-6
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Actions Action Complete Item ID Description of Issue Request ID (Yes/No, (IR)
See Notes 1 & 2)
During Fukushima Seismic Walkdowns 2 of 4 chains on a single shop light fixture in the ceiling of the Unit 3 Battery Charger Room had open S-hook connections.
The subject light fixture is located against the south wall behind Bus 3B-1, 125 VDC. There is one of two open S-hooks at each end. The remaining chains with closed Outage-S-hooks, if the open S-hooks were to come loose, are IR 1439564 8
sufficient to prevent the light fixtures from swinging into Yes adjacent equipment and/or falling down by engineering WR 00417426 judgment. In addition, the light fixtures in this room are hardwired into the ceiling and would not fall even if all four of the support chains were to come loose.
Updated Actions:
The open S-hooks were closed.
Notes:
- 1) "Yes" indicates that any corrective actions resulting from the issue are complete.
- 2) "No" indicates that any corrective actions resulting from the issue are NOT complete.
Actions are tracked by the IR number in the station Corrective Action Program.
A5-7
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 A6 Licensing Basis Evaluations See Section 6 of initial report, no new licensing basis evaluations were required as a result of conditions identified during the follow-on Walkdowns or Area Walk-Bys.
A6-1
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 A7 IPEEE Vulnerabilities Resolution Report See Section 7 of the initial report, no changes to the IPEEE vulnerabilities resolution was made for this Annex A.
A7-1
A Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 BPeer Review A peer review team consisting of at least two individuals was assembled and peer reviews of the follow-on activities were performed in accordance with Section 6: Peer Reviews of the EPRI guidance document. The Peer Review process included the following activities:
" No review of the selection of SSCs included on the SWEL was required as the SWEL has not been revised.
- Review of a sample of the checklists prepared for the Seismic Walkdowns and Area Walk-Bys No review of licensing basis evaluations was required as no new licensing basis evaluation were performed.
- Review of the decisions for entering the potentially adverse conditions into the CAP process
- Review of the submittal report
- Provide a summary report of the peer review process in the submittal report The peer reviews were performed independently from this report and the summary Peer Review Report is provided in Appendix AF of this Annex A.
A8-1
A Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 9 References See Section 9 of initial report, the following new references were added for this Annex A:
- 1. Exelon Generation Company, LLC 180-day Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Seismic Aspects of Recommendation 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident, dated November 27, 2012 (RS-12-167).
- 2. NRC Letter, 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, dated March 12, 2012.
A9-1
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Appendix AA Project Personnel Resumes and SWE Certificates Resumes and certificates (where applicable) for the following people are found in Appendix A:
A. Perez, Equipment Selection Engineer......................................................... A-2 K. Hull, Equipment Selection Engineer............................................................ A-6 J. Griffith, SWE, Licensing Basis Reviewer........................................................ A-9 M. Wodarcyk, SWE, Licensing Basis Reviewer.................................................
A-13 T. Ram, SWEL Peer Reviewer..................................................................... A-15 B. Lory, Peer R eview er............................................................................... A -17 W. Djordjevic, Peer Review Team Leader....................................................... A-21 B. W eight, IPEEE R eview er......................................................................... A -25 Resumes and Certificates (where applicable) for the following people are found in Appendix AA of this Annex A:
Mohammad Hosain, Peer Review Team Leader.............................................
AA-2 AA-1
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 A-ExeLon Generation, MOHAMMAD A. HOSAIN EDUCATION MSME, Polytechnic Institute of New York, Brooklyn, New York BSME, Bangalore University, Bangalore, India QUALIFICATIONS Over 30 years of engineering and engineering management experience in the nuclear power industry, mostly in the seismic and environmental qualification of equipment. This experience includes 18 years of consulting engineering and 15 years of utility in Design and Plant Engineering areas.
Manager of Dresden Station Environmental Qualification (EQ) program. Dresden's Subject Matter Expert and mentor for Seismic and Environmental Qualification of equipment.
Site Seismic Qualification Utility Group (SQUG) coordinator and qualified SQUG seismic engineer.
Modification design engineer and qualified 10 CFR50.59 screener and evaluator.
Manager of Air Systems in Plant Engineering MAJOR ACCOMPLISHMENTS Overhauled Dresden Station EQ program for Extended Power Uprate (EPU) and License Renewal Projects.
Improved EQ program and achieved and maintained the program health color of green (excellent).
Managed resolution of more than 100 Dresden Station SQUG outliers and successfully completed the NRC required program.
Replaced 177 scram solenoid pilot valves on each Unit and received the Station recognition award.
Improved the reliability of Air systems by replacing Instrument and Service Air compressors and modifying Nitrogen Tanks' cryogenic piping.
Worked on numerous system modifications including post TMI accident NRC required modifications. Divisional in-charge of major modifications of HPCS and RCIC piping and 125 VDC and 250 VDC batteries and battery chargers replacement at LaSalle County Station.
Led reevaluation program for seismic qualification of MOV's at LaSalle County Station due to MOV modifications resulting from NRC GL 89-10 evaluations.
AA-2
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Mohammad A. Hosain PROFESSIONAL EXPERIENCE 1997-present Senior Engineer and Senior Staff Engineer Exelon Corporation Dresden Nuclear Power Station Morris, Illinois Mr. Hosain is responsible for the management of EQ Program and seismic qualification of equipment at Dresden Station. He is the site subject matter expert and mentor for the seismic and environmental qualification of equipment.
He is also the site Seismic Qualification Utility Group (SQUG) coordinator. As the SQUG coordinator, Mr. Hosain has demonstrated leadership in resolving more than 100 SQUG outliers and taking the SQUG program to a finish. As the SQUG coordinator, his responsibilities included obtaining funding, being modification cognizant engineer, Design Engineering liaison to Work Control and Planning, and interface with the NRC in responding to the NRC Requests for Additional Information (RAI). His improvements to the EQ program resulted in achieving the program health color of green (excellent) for the first time ever.
As the EQ program manager, Mr. Hosain has been responsible for successful completion of updating all EQ binders for Extended Power Uprate (EPU) and License Renewal Projects. He has contributed to Dresden Station's success in many ways - from resolving emergent issues to cost saving. He has extended qualified lives of various equipment using innovative ways. He has successfully deferred replacement of several equipment/components by implementing monitoring and surveillance. He has participated in many NRC inspections and successfully resolved NRC's concerns regarding seismic and environmental qualification of equipment, and defended station's design bases. He has received many recognition awards from Station management.
Mr. Hosain has also functioned as the system manager for Instrument Air, Service Air and Nitrogen/Pumpback systems in Plant Engineering for two years.
There he was a key player in obtaining funding for and replacing Instrument Air and Service Air compressors, improving the system/equipment reliability. He has streamlined the process of instrument air quality monitoring by developing and implementing new procedures.
1996-1997 Project Engineer Sargent & Lundy Engineers Chicago, Illinois Mr. Hosain was assigned to Quad Cities Station and Dresden Station site Design Engineering. Worked on design modifications and supported reduction of Engineering Requests backlog.
1993-1996 Engineering Consultant Wheaton, Illinois AA-3
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Mohammad A. Hosain Mr. Hosain Provided engineering consultation services to clients both in the nuclear power industry and commercial engineering in different areas such as design, equipment qualification /optimization and surveillance and maintenance requirements for equipment.
1979-1993 Sargent & Lundy Engineers Chicago, Illinois 1987-1993, Project Engineer As a Project Engineer in Component Qualification Division and in Component and Materials Engineering Division, Mr. Hosain managed a group of six to eight engineers and senior engineers assigned to project team in the areas of seismic and environmental qualification of safety-related equipment, parts and component classification and Q-list development. He was responsible for divisional activities involving modifications on the project. Responsibilities included determining job scope; writing proposals to clients; monitoring and controlling budget and man-hours; ensuring completion of modification work on or before schedule; inter-divisional interface and interface with client and station personnel. During this period, Mr. Hosain was assigned to LaSalle County Station project, where he resolved numerous seismic and environmental qualification issues including surveillance and maintenance concerns, modification issues and parts procurement, classification and dedication concerns and handled all the station engineering work requests involving any divisional activities.
1983-1987, Senior Component Engineer As a Senior Engineer in Component Qualification Division, Mr. Hosain managed a core of engineers performing seismic and environmental qualification of safety-related equipment. Responsibilities included training new engineers on the project team in the preparation and review of equipment and design procurement specifications, performance of bid evaluations, calculations of loads required for design of equipment foundations and building floor slabs, preparation and review of equipment dynamic and environmental qualification reports, preparation and review of EQ binders, preparation and review of ASME certified design reports 1979-1983, Engineering Analyst Engineering Analyst in Engineering Mechanics Division and Component Qualification Division. Mr. Hosain performed seismic qualification analysis of safety-related equipment using finite element modal analysis and conventional stress analysis techniques. Gained experience in dynamic testing techniques used for seismic qualification of equipment and techniques involved in environmental qualification of Class 1E equipment. Gained familiarity with several codes and standards, including ASME B&PV Code Sections, II, III and XI, ASTM Standards, AISC Manual, AWS Standards, IEEE Standards such as 323, 344, 382 etc., and various Regulatory Guides.
AA-4
ii
!il (gTertif i ut? of Ac~irietrtnd 9J4is is to ltrdifyp t4u1 Mohamnmad A. Hosain 4aas (Campleteb t~te *QQ(
Unlkbown Orrertning unb b'eismir Evaltuation Trainingxt (I9ourst ii-
ý,-, /,ý a --2-f.
/ qq~f i/
(
Data of! fo Vel-5-7 4(;,ww p
Sega Represenatmive Training coir-.' A r farater
- 1 CD 0.
DCD 0)
CA)o
-4 CA (7'
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Appendix AC Seismic Walkdown Checklists (SWCs)
Table AC-1 provides a description of each item, anchorage verification confirmation, a list of Area Walk-By Checklists associated with each item, comments of each Seismic Walkdown Checklist. All items in Table AC-1 were deferred items listed in Table E-1 of the initial report, and were accessible during the follow-on walkdowns.
Table AC-2 provides a description of each item subject to supplemental internal inspections. All items in Table AC-2 were electrical cabinets subject to Supplemental Internal Inspections as listed in Table E-2 of the initial report, and were accessible without safety and operational hazard.
AC-I
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Table AC-1. Summary of Seismic Walkdown Checklists Anchorage Area ID DESCRIPTION Configuration Walk-By Page Confirmed?
D03-0302-0156AV05 CRD/ East Bank Scram Discharge N/A Outage-1 AC-23 Volume Drain Valve D03-0302-0157AV05 CRD/ East Bank Scram Discharge N/A Outage-1 AC-26 Volume Drain Valve D03-1601-0021-V05 PRESSURE SUPPRESSION/
N/A Outage-I AC-32 Drywell Purge Line Valve PRESSURE SUPPRESSION/
D03-1601-0022-V05 Drywell/Torus Purge Line Valve N/A Outage-i AC-35 D03-200i-0005-V05 RB EQUIPMENT DRAIN/ Drywell N/A Outage-1 AC-38 Equipment Drain Line Valve D03-200i-01 05-V5 RB EQUIPMENT DRAIN/ Drywell N/A Outage-2 AC-41 Floor Drain Line Valve REACTOR RECIRCULATION/
D03-0202-0005AV20 Recirc Pump A Discharge Valve N/A Outage-3 AC-3 D03-0203-0001AV05 MAIN STEAM/ Isolation Valve N/A Outage-4 AC-6 D03-0203-0003AV26 ADS/ Target Rock Valve N/A Outage-5 AC-9 D03-0203-0003BV26 ADS/ Electromatic Relief Valve N/A Outage-5 AC-1 2 D03-0203-0004AV26 ADS/ Reactor Overpressure Relief N/A Outage-5 AC-i5 Valve D03-i3Oi-0004-V20 ISOLATION CONDENSER/
Steam Return Line Isolation Valve N/A Outage-6 AC-29 D03-230i-0008-V20 HPCI/ HPCI Pump Injection Line N/A Outage-7 AC-44 Valve D03-83250-AOi-M05 250V DC/ Breaker to TB MCC #3 Yes Outage-8 AC-47 D03-83250-A01-M05_
(ROB-Battery #3)
D03-0302-0082B-LT CRD/ East Bank SDV Tank Level Yes AWC-U3-AC-i7 1 Transmitter 1
12 1
Table AC-2. Summary of Seismic Walkdown Checklists for Supplemental Internal Inspections Anchorage Area ID DESCRIPTION Configuration Page Confirmed?
Walk-By AWC-U3-C-440 D03-7338 --....
S35 480V AC/ Switchgear 38 Yes 20 I
AC-50 AC-2
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Status: [-ý N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0202-0005AV20 Equipment Class:
(8) Motor-Operated and Solenoid-Operated Valves Equipment
Description:
REACTOR RECIRCULATION/ Recirc Pump A Discharqe Valve Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 515.50 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Not Applicable
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable Not Applicable Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
Yes AC-3
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status: EI7 N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0202-0005AV20 Equipment Class:
(8) Motor-Operated and Solenoid-Operated Valves Eauioment
Description:
REACTOR RECIRCULATION/ Recirc Pump A Discharge Valve
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
Yes
- 9.
Do attached lines have adequate flexibility to avoid damage?
Yes
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
A Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 AC-4
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 3 Status: Y-E N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
Equipment Class:
Equipment
Description:
D03-0202-0005AV20 (8) Motor-Operated and Solenoid-Operated Valves REACTOR RECIRCULATION/ Recirc Pump A Discharge Valve AC-5
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Status: L-1 N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0203-OOOIAV05 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
MAIN STEAM/ Isolation Valve Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 515.50 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Not Applicable
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable Not Applicable Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
Yes AC-6
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status:
Y N
U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0203-0001AV05 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
MAIN STEAM/ Isolation Valve
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
Yes
- 9.
Do attached lines have adequate flexibility to avoid damage?
Yes
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 AC-7
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 3 Status: [Y N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
Equipment Class:
Ecuipment
Description:
D03-0203-0001 AV05 (7) Fluid-Operated Valves MAIN STEAM/ Isolation Valve 3-AC-8
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Status: FYj] N U
Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0203-0003AV26 Equipment Class:
(7) Fluid-Operated Valves Eauioment DescriDtion:
ADS/ Taraet Rock Valve Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 537.00 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Not Applicable
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable Not Applicable Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes Interaction Effects
- 7.
Are soft tarqets free from impact by nearby equipment or structures?
Yes AC-9
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status: FYI-N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0203-0003AV26 Equipment Class:
(7) Fluid-Operated Valves Eauipment
Description:
ADS/ Tarqet Rock Valve
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
- 9.
Do attached lines have adequate flexibility to avoid damage?
Yes Yes
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
C,.
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 AC-10
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 3 Status: E-I N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0203-0003AV26 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
ADS/ Target Rock Valve 3-0203-3A 2012-11-13 AC-11
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Status: F N
U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0203-0003BV26 Equipment Class:
(8) Motor-Operated and Solenoid-Operated Valves Equipment
Description:
ADS/ Electromatic Relief Valve Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 537.00 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 Drovided at the end of this checklist for documentina other comments.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Not Applicable
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable Not Applicable Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
Yes AC-12
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status:
-IF N U
Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0203-0003BV26 Equipment Class:
(8) Motor-Operated and Solenoid-Operated Valves Equipment
Description:
ADS/ Electromatic Relief Valve
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
Yes
- 9.
Do attached lines have adequate flexibility to avoid damage?
Yes
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 AC-13
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 3 Status: Y N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0203-0003BV26 Equipment Class:
(8) Motor-Operated and Solenoid-Operated Valves Equipment
Description:
ADS/ Electromatic Relief Valve AC-14
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 2 Status: FYI N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0203-0004AV26 Equipment Class:
(7) Fluid-Operated Valves Eauipment
Description:
ADS/ Reactor Overoressure Relief Valve Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 537.00 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Not Applicable
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable Not Applicable Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
Yes AC-15
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 2 Status: EZZI N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0203-0004AV26 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
ADS/ Reactor Overpressure Relief Valve
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
- 9.
Do attached lines have adequate flexibility to avoid damage?
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Yes Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
A 1'04 Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 Photos AC-16
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 6 Status: F N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0302-0082B-LT Equipment Class:
(18) Instruments on Racks Eauirment
Description:
CRD/ East Bank SDV Tank Level Transmitter Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 517.50 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Yes
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
Yes
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
Yes Minor shrinkage cracks in wall judged to be acceptable.
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
Yes AC-17
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 6 Status: [LI N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0302-0082B-LT Equipment Class:
(18) Instruments on Racks Eauipment
Description:
CRD/ East Bank SDV Tank Level Transmitter
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
Yes
- 9.
Do attached lines have adequate flexibility to avoid damage?
Yes
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Teams:
J. Griffith & M. Wodarcyk - 8/1/2012 P. Gazda & M. Wodarcyk - 11/13/2012 See U3 East HCU Bank area walk-by for further notes.
Per Engineering, switch has been replaced with a transmitter.
Evaluated by:
Philip Gazda Date:
11/19/2012
~
~
Michael Wodarcyk 11/19/20 12 AC-18
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 6 Status: EFY N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0302-0082B-LT Equipment Class:
(18) Instruments on Racks Equipment
Description:
CRD/ East Bank SDV Tank Level Transmitter Photos AC-19
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 4 of 6 Status: [-J N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
Equipment Class:
D03-0302-0082B-LT (18) Instruments on Racks T
AC-20
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 5 of 6 Status:
YI] N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0302-0082B-LT Equipment Class:
(18) Instruments on Racks AC-21
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 6 of 6 Status: 7 N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0302-0082B-LT Equipment Class:
(18) Instruments on Racks
)V T AC-22
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Seismic Walkdown Checklist (SWC)
Status: -7Y N U
Equipment ID No.:
D03-0302-0156AV05 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
CRD/ East Bank Scram Discharae Volume Drain Valve Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 476.50 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Not Applicable
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable Not Applicable Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
Yes AC-23
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status: FY-1 N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0302-0156AV05 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
CRD/ East Bank Scram Discharge Volume Drain Valve
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
Yes
- 9.
Do attached lines have adequate flexibility to avoid damage?
Yes
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/12/2012 Evaluated by:
-d' Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 AC-24
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 3 Status: F N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0302-0156AV05 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
CRD/ East Bank Scram Discharge Volume Drain Valve AC-25
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Status: F N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0302-0157AV05 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
CRD/ East Bank Scram Discharge Volume Drain Valve Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 476.50 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Not Applicable
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable Not Applicable Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes AC-26
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status: FYi1 N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-0302-0157AV05 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
CRD/ East Bank Scram Discharqe Volume Drain Valve Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
Pipe and various tubes in proximity with valve body. Valve is robust; judged to be acceptable.
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
Yes Yes
- 9.
Do attached lines have adequate flexibility to avoid damage?
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/12/2012 Evaluated by:
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 AC-27
Dresden Generating Station Unit 3 Correspondence No.: RS-1 3-067 Sheet 3 of 3 Status: [*
N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
Equipment Class:
Eauipment
Description:
D03-0302-01 57AV05 (7) Fluid-Operated Valves CRD/ East Bank Scram Discharqe Volume Drain Valve 3-AC-28
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Status: F1 N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-1301-0004-V20 Equipment Class:
(8) Motor-Operated and Solenoid-Operated Valves Eauipment
Description:
ISOLATION CONDENSER/ Steam Return Line Isolation Valve Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 537.00 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Not Applicable
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable Not Applicable Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes AC-29
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status: L-Yii N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-1301-0004-V20 Equipment Class:
(8) Motor-Operated and Solenoid-Operated Valves Equipment
Description:
ISOLATION CONDENSER/ Steam Return Line Isolation Valve Interaction Effects
- 7. Are soft targets free from impact by nearby equipment or structures?
Yes Lead shielding in vicinity is adequately restrained.
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
Yes
- 9.
Do attached lines have adequate flexibility to avoid damage?
Yes
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
A° Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 AC-30
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 3 Status: FTI N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-1301-0004-V20 Equipment Class:
(8) Motor-Operated and Solenoid-Operated Valves Equipment
Description:
ISOLATION CONDENSER/ Steam Return Line Isolation Valve AC-31
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Status: F N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-1601-0021-V05 Equipment Class:
(7) Fluid-Operated Valves Eauipment
Description:
PRESSURE SUPPRESSION/ Drvwell Purae Line Valve Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 476.50 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Not Applicable
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable Not Applicable Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
Yes AC-32
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status: ELI N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-1601-0021-V05 Equipment Class:
(7) Fluid-Operated Valves Eauioment DescriDtion:
PRESSURE SUPPRESSION/ Drvwell Puree Line Valve
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
- 9.
Do attached lines have adequate flexibility to avoid damage?
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Yes Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/12/2012 Evaluated by:
r
"./"
V Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 AC-33
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 3 Status: FYI N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
Equipment Class:
EauiDment
Description:
D03-1601 -0021 4V05 (7) Fluid-Operated Valves PRESSURE SUPPRESSION/ Drvwell Puree Line Valve Photos 3-1601-21 2012-11-12 (1)
AC-34
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Status: FY-] N U
Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-1601-0022-V05 Equipment Class:
(7) Fluid-Operated Valves Eauioment Descriotion:
PRESSURE SUPPRESSION/ Drvwell/Torus Purae Line Valve Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 476.50 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Not Applicable
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable Not Applicable Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes AC-35
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status: FY] N U
Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-1601-0022-V05 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
PRESSURE SUPPRESSION/ Drywell/Torus Purge Line Valve Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
Yes
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
Yes
- 9.
Do attached lines have adequate flexibility to avoid damage?
Yes
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/12/2012 Evaluated by:
/
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 AC-36
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 3 Status: E-Y N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-1601-0022-V05 Equipment Class:
(7) Fluid-Operated Valves Eauipment
Description:
PRESSURE SUPPRESSION/ DrywellfTorus Purge Line Valve AC-37
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Status: FY-- N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-2001-0005-V05 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
RB EQUIPMENT DRAIN/ Drywell Equipment Drain Line Valve Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 476.50 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Not Applicable
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable Not Applicable Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
Yes AC-38
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status: FY-] N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-2001-0005-V05 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
RB EQUIPMENT DRAIN/ Drywell Equipment Drain Line Valve
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
Yes
- 9.
Do attached lines have adequate flexibility to avoid damage?
Yes
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/12/2012 Evaluated by:
A'/
0 Philip Gazda Date:
11/19/2012
//Michael Wodarcyk 11/19/2012 AC-39
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 3 Status: FYII N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
Equipment Class:
Eauioment
Description:
D03-2001-0005-V05 (7) Fluid-Operated Valves RB EQUIPMENT DRAIN/ Drywell Equipment Drain Line Valve Photos 3-AC-40
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Status: FYI N U
Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-2001-0105-V05 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
RB EQUIPMENT DRAIN/ Drywell Floor Drain Line Valve Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 476.50 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Not Applicable
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable Not Applicable Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes AC-41
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status: EY-I N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-2001-0105-V05 Equipment Class:
(7) Fluid-Operated Valves Equipment
Description:
RB EQUIPMENT DRAIN/ Drywell Floor Drain Line Valve Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
Yes
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
Yes
- 9.
Do attached lines have adequate flexibility to avoid damage?
Yes
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/12/2012 Evaluated by:
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 AC-42
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 3 Status:
Y N
U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
Equipment Class:
Equipment
Description:
D03-2001-0105-V05 (7) Fluid-Operated Valves RB EQUIPMENT DRAIN/ Drywell Floor Drain Line Valve Photos AC-43
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Status:
-FYXI N U
Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-2301-0008-V20 Equipment Class:
(8) Motor-Operated and Solenoid-Operated Valves Equipment
Description:
HPCI/ HPCI Pump Injection Line Valve Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Turbine, 517.50 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Not Applicable
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable Not Applicable Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of Yes potentially adverse seismic conditions?
AC-44
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status: FI-N U
Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-2301-0008-V20 Equipment Class:
(8) Motor-Operated and Solenoid-Operated Valves Equioment Descrintion:
HPCI/ HPCI PumD Iniection Line Valve Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
Valve yoke is near floor grating. Valve is robust. Pipe is well-supported and seismically-designed. Judged to be acceptable.
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
Yes Yes
- 9.
Do attached lines have adequate flexibility to avoid damage?
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
(,
/".
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 AC-45
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 3 Status: F N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
Equipment Class:
Eauipment
Description:
003-2301 -0008-V20 (8) Motor-Operated and Solenoid-Operated Valves HPCI/ HPCI Pump Iniection Line Valve Photos 3-2301-8 2012-11-13 (1) 3-2301-8 2012-11-13 (2)
AC-46
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Status: F N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-83250-Ao1-MO5 Equipment Class:
(14) Distribution Panels Eauipment
Description:
250V DC/ Breaker to TB MCC #3 (ROB-Battery #3)
Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Turbine, 549.00 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.
Anchorage
- 1.
Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
No
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
Yes
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
Yes
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
Yes
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
Not Applicable
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
Yes AC-47
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status: F N
U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-83250-AO1-MO5 Equipment Class:
(14) Distribution Panels Equipment
Description:
250V DC/ Breaker to TB MCC #3 (ROB-Battery #3)
Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
Yes
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
Yes
- 9.
Do attached lines have adequate flexibility to avoid damage?
Yes
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
Yes Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?
Comments Seismic Walkdown Teams:
J. Griffith & M. Wodarcyk - 7/30/2012 P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
°
"/
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 AC-48
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 3 Status: FY-] N U Seismic Walkdown Checklist (SWC)
Equipment ID No.:
D03-83250-AO1-M05 Equipment Class:
(14) Distribution Panels Equipment
Description:
250V DC/ Breaker to TB MCC #3 (ROB-Battery #3)
Photos
- j-t$JOu-;j zu I Z-I I -I j (Z)
AC-49
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 3 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL INSPECTION Equipment ID No.:
D03-7338 ------
S35 Equipment Class:
(02) Low Voltage Switchgear Equipment
Description:
480V AC/ Switchgear 38 Project:
Dresden 3 SWEL Location (Bldg, Elev, Room/Area):
Reactor, 570.00 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.
Anchora-qe
- 1. Is anchorage configuration verification required (i.e., is the item one of the 50%
of SWEL items requiring such verification)?
- 2.
Is the anchorage free of bent, broken, missing or loose hardware?
- 3.
Is the anchorage free of corrosion that is more than mild surface oxidation?
- 4.
Is the anchorage free of visible cracks in the concrete near the anchors?
- 5.
Is the anchorage configuration consistent with plant documentation? (Note:
This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
- 6.
Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?
SEE SWC IN APPENDIX C FOR RESPONSES Interaction Effects
- 7.
Are soft targets free from impact by nearby equipment or structures?
- 8.
Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
- 9.
Do attached lines have adequate flexibility to avoid damage?
- 10.
Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?
SEE SWC IN APPENDIX C FOR RESPONSES AC-50
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 3 Status: Mi N
U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL INSPECTION Equipment ID No.:
D03-7338 ----S35 Equipment Class:
(02) Low Voltage Switchgear Equipment
Description:
480V AC/ Switchgear 38 Other Adverse Conditions
- 11.
Have you looked for and found no adverse seismic conditions that could adversely affect the safety functions of the equipment?
- a. Internal components secured? (i.e. no loose or missing fasteners)
- N U
- b. Are adjacent cabinets secured together?
N U
- c. No other adverse seismic conditions?
N U Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/14/2012 Cabinet energized. Opened Section 385 rear door only. Section bolted to adjacent cabinets.
Evaluated by:
P. Gazda Date:
11/26/2012 M. Wodarcyk 11/26/2012 Photos 1
2 AC-51
Dresden Generating Station Unit 3 Correspondence No.: RS-1 3-067 Sheet 3 of 3 Status: M N U Seismic Walkdown Checklist (SWC) SUPPLEMENTAL INSPECTION Equipment ID No.:
Equipment Class:
inmanf nacerintinn.
D03-7338 ------
S35 (02) Low Voltage Switchgear 3
4 5
6 AC-52
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Appendix AD Area Walk-By Checklists (AWCs)
Table AD-1 provides the building, elevation, and location of each area as well as a list of walkdown items associated with each area, and page numbers of each Area Walk-By Checklist.
AD-I
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Table AD-1. Summary of Area Walk-By Checklists Area Area Description Components Within Page Area D03-0302-0156AV05 D03-0302-0157AV05 Outage-1 Torus Catwalk Bay 4 D03-1601-0021-V05 AD-9 D03-1601-0022-V05 D03-2001-0005-V05 Outage-2 Torus Catwalk Bay 14 D03-2001-0105-V05 AD-11 Outage-3 Drywell Basement - 1200 D03-0202-0005AV20 AD-13 Outage-4 Drywell Ground Floor - 0*
D03-0203-0001AV05 AD-15 D03-0203-0003AV26 Outage-5 Drywell 2nd Floor - 45°-90° D03-0203-0003BV26 AD-1 7 D03-0203-0004AV26 Outage-6 Drywell 2nd Floor - 1900 D03-1301-0004-V20 AD-19 Outage-7 MSIV Room / X-Area D03-2301-0008-V20 AD-21 Outage-8 Battery Charger Room D03-83250-AO1-M05 AD-23 AWC-U3-12 East HCU Bank D03-0302-0082B-LT AD-3 AD-2
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 6 Status: FT] N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-12 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.
Additional space is provided at the end of this checklist for documenting other comments.
- 1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?
Abandoned light fixture support is skewed. Support judged acceptable because it is trapped between pipes and cannot fall, and because it is anchored to the wall.
- 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?
Piping is welded and/or well-supported and judged to be acceptable.
- 6.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?
Gas bottles chained adequately.
- 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)?
Overhead hoist chain near MCC:
- 1) Weight of chain piled on floor prevents sway.
- 2) Hook clipped to fence near torus ladder prevents sway.
AD-3
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 6 Status: EY N U
Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-12 Hoist chain is judged acceptable.
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Comments Seismic Walkdown Teams:
J. Griffith & M. Wodarcyk - 7/31/2012 P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
P. Gazda J. Griffith Date:
11/19/2012 Michael Wodarcyk 11/19/2012 Photos AD-4
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 3 of 6 Status: rEZ N U Area Walk-By Checklist (AWC)
AD-5
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 4 of 6 Status: F N U Area Walk-By Checklist (AWC) 201 AD-6
Dresden Generating Station Unit 3 Correspondence No.: RS-1 3-067 Sheet 5 of 6 Status: Y N U Area Walk-By Checklist (AWC)
AD-7
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 6 of 6 Status: F N U Area Walk-By Checklist (AWC)
AD-8
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 2 Status: Eli N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 01 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.
Additional space is provided at the end of this checklist for documenting other comments.
- 1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?
- 2.
Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?
- 4.
Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
Various pipes, tubes, and conduits in close proximity with one another. All are flexible and judged to be acceptable.
- 5.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?
Fire piping in area is welded.
- 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)?
AD-9
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 2 Status: F N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 01
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/12/2012 Evaluated by:
° Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 Pho~tos AD-10
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 2 Status: FY-] N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 02 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.
Additional space is provided at the end of this checklist for documenting other comments.
- 1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?
- 2.
Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?
- 4.
Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
Various pipes, tubes, and conduits in close proximity with one another. All are flexible and judged to be acceptable.
- 5.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?
- 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)?
AD-11
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 2 Status: F N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 02
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/12/2012 Evaluated by:
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 Photos AD-12
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 2 Status: FYI N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 03 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.
Additional space is provided at the end of this checklist for documenting other comments.
- 1.
Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?
Yes
- 2.
Does anchorage of equipment in the area appear to be free of significant degraded conditions?
Yes
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?
Yes
- 4.
Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
Yes
- 5.
Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?
Yes
- 6.
Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?
Yes
- 7.
Does it appear that the area is free of potentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?
Yes AD-13
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 2 Status: E--I N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 03
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
6 "
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 Photos AD-14
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 2 Status: FT] N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 04 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.
Additional space is provided at the end of this checklist for documenting other comments.
- 1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?
Yes
- 2.
Does anchorage of equipment in the area appear to be free of significant degraded conditions?
Yes
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?
Yes
- 4.
Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
Yes
- 5.
Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?
- 6.
Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?
Yes Yes Yes
- 7.
Does it appear that the area is free of potentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?
AD-15
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 2 Status: FZI N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 04
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
("
/"
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 Photos AD-16
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 2 Status: [7 N
U Area Walk-By Checklist (AWC)
Location (BIdg, Elev, Room/Area):
AWC-U3-Outage 05 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.
Additional space is provided at the end of this checklist for documenting other comments.
- 1.
Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?
Yes
- 2.
Does anchorage of equipment in the area appear to be free of significant degraded conditions?
Yes
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?
Yes
- 4.
Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
- 5.
Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?
Yes Yes Yes
- 6.
Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?
- 7.
Does it appear that the area is free of potentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?
Yes AD-17
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 2 Status: F N
U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 05
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 Photos AD-18
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 2 Status: FY-] N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 06 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.
Additional space is provided at the end of this checklist for documenting other comments.
- 1.
Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?
Yes
- 2.
Does anchorage of equipment in the area appear to be free of significant degraded conditions?
Yes
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?
Yes
- 4.
Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
- 5.
Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?
Yes Yes Yes
- 6.
Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?
- 7.
Does it appear that the area is free of potentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?
Lead shielding in vicinity is adequately restrained.
Yes AD-19
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 2 Status: ZI-N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 06
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 Photos AD-20
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 2 Status: FY] N U
Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 07 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.
Additional space is provided at the end of this checklist for documenting other comments.
- 1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?
Yes
- 2.
Does anchorage of equipment in the area appear to be free of significant degraded conditions?
Yes
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?
Yes
- 4.
Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
Yes
- 5.
Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?
Yes
- 6.
Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?
Yes
- 7.
Does it appear that the area is free of potentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?
Yes AD-21
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 2 Status: LII N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 07
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 Photos AD-22
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 1 of 2 Status: [-* N U Area Walk-By Checklist (AWC)
Location (Bidg, Elev, Room/Area):
AWC-U3-Outage 08 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.
Additional space is provided at the end of this checklist for documenting other comments.
- 1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?
- 2.
Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?
- 4.
Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
Overhead light fixture behind Bus 3B-1, 125VDC has two open S-hooks (one on each end). The 2 remaining chains are adequate to prevent the fixture from impacting the panel. In addition, the hard-wired electrical cable to the light fixture would also prevent the fixture from impacting the panel. Judged to be acceptable. See IR 1439564.
- 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)?
AD-23
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Sheet 2 of 2 Status: F-* N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-Outage 08
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Comments Seismic Walkdown Team: P. Gazda & M. Wodarcyk - 11/13/2012 Evaluated by:
° Philip Gazda Date:
11/19/2012 Michael Wodarcyk 11/19/2012 Photos AD-24
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Appendix AE Plan for Future Seismic Walkdown of Inaccessible Equipment All 15 inspection items from Table E-1 of the initial report, as well as their associated Area Walk-Bys, were completed during Dresden's D3R22 outage in the Fall of 2012.
The results for these inspection items are included in Appendix AC of this Annex A. No issues or conditions were found during the inspection of these items. No items in Table E-1 remain open.
Twenty-four (24) supplemental internal electrical cabinet inspections listed in Table E-2 of the initial report remain open. These 24 supplemental internal inspection items are re-listed, along with the IRs used to track completion of the Seismic Walkdowns, in Table AE-2 of this Annex A. These items are in process to be completed on or before the original commitment date of Winter 2022 (D3R27).
The Area Walk-Bys of the vicinity of the supplemental internal electrical cabinet inspections were completed previously and was documented in Appendix D of the initial report.
AE-I
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Table AE-2. Supplemental Cabinet Internal Inspection List TRACKING STATUS I COMPONENT DESCRIPTION EQUIPMENT ACCESSIBLE IF NOT ACCESSIBLE, MILESTONE NUMBER INSPECTION ID CLASS (Y/N)
WHY?
COMPLETION No.)
RESTS (IR No.)
RESULTS D03-7838-2---
480V AC/ MCC (01) Motor Energized 480VAC IR1403575 M05 38-2 Control Centers No cabinets. Electrical 4Q2013 WO 631303 Open safety hazard.
D03-7839-2---
480V AC/ MCC (01) Motor Energized 480VAC IR 1440232 M05 39-2 Control Centers No cabinets. Electrical D3R27 WO 1388637 Open safety hazard.
D03-8303A-250V DC/ MCC (01) Motor Tight thumbscrews.
Bus #3A (ROB-Yes Will require screwdriver 1Q2013 IR 1447758 Open M05 Control Centers RB MCC #3) to open.
WO 01587273 D03-8303B-....
250V DC/MCC (01) Motor IR 1447758 M05 Bus #3B (ROB-(oto r
Yes Will require screwdriver 1Q2013 Open MConillreqirescrwdrversQ2WO 01587273 Oe RB MCC #3) to open.
125V DC!/RB125V C/
RBTight thumbscrews.
D03-83125 ----- 125V DC (01) Motor Yes Will require screwdriver 1Q2013 IR 1447758 Open P06 Distribution Control Centers Ye Wre WO 01587273 Panel #3 to open.
Tools required.
24/48V DC/
Internal inspection of D03-9802-A----
Distribution (01) Motor mountings will require 1Q2022 IR 1440229 P06 Ditrbuio Control Centers No removal of cover over WO 99053854 Panel #3A breakers (similar to home breaker cabinet)
AE-2
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 TRACKING STATUS /
COMPONENT EQUIPMENT ACCESSIBLE IF NOT ACCESSIBLE, MILESTONE NUMBER INSPECTION IDDESCRIPTION CLASS (Y/N)
WHY?
COMPLETION No.)
RESTS (IR No.)
RESULTS (02)Low Energized 480VAC R1Complete D03-7338 ------ 480V AC/
Voltow Energized 480VA IR 1440231 (11/2012)
S35 Switchgear 38 ltage No cabinets. Electrical D3R26 WO 99212406 See Switchgear safety hazard.
Appendix AC D03-7339 ------ 480V AC/ 480V (02) Low Energized 480VAC IR 1440232 S35 Switchgear 39 Voltage No cabinets. Electrical D3R27 WO 538717 Open Switchgear safety hazard.
D03-67341 ----- 4160V AC/
(03) Medium Energized 4160VAC IR 1440232 S35 Switchgear 34-Voltage No cabinets. Electrical D3R27 WO 1390287 Open 1
Switchgear safety hazard.
250V DC/
25VD/Tight thumbscrews.
I 475 D03-83250-Breaker to TB (14) Distribution Yes Will require screwdriver IR 1447758 Open A01 -M05 MCC #3 (ROB-Panels Ye W
re WO 01587273 Battery #3) to open.
24/48V DC/
Tools required.
D03-9802A-Breaker to (14) Distribution Internal inspection of IR 1440229 A21D-B131 Battery Charger Panels No mountings will require 1Q2022 WO 99053854 Open
- 3A (
r)eremoval of cover over breakers Tools required.
Most sections can be D03-830 -125V DC/
(16) Battery easily accessed.
1Q2013 D03-8300--3A-DC(6 Battery ChargerChaHowever the lower left IR 1447758 Battery Charger Chargers and Partial section will require Partial WO 01587273 Open 5#3A Inverters tools to remove covers to inspect mounting points.
AE-3
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 TRACKING STATUS I COMPONENT EQUIPMENT ACCESSIBLE IF NOT ACCESSIBLE, MILESTONE NUMBER INSPECTION IDDESCRIPTION CLASS (Y/N)
WHY?
COMPLETION No.)
RESTS (IR No.)
RESULTS Tools required.
Most sections can be D03-830 -125V DC/
(16) Battery easily accessed.
D03-8300--3--DC(6 Battery ChargerChaHowever the lower left 102013 IR 1447758 B05
- 3 Inverters section will require Partial WO 01587273 tools to remove covers to inspect mounting points.
Tools required.
Most sections can be 250V DC/
(16) Battery easily accessed.
1 Q2013 D03-83250-3---
2Battery However the lower left IR 1447758 B05 Battery Charger Chargters and Partial section will require Partial WO 01587273 Open
- 3 Invrterstools to remove covers to inspect mounting points.
CONTROL (20)
D00-2223-PANEL DG Instrumentation Tight thumbscrews.
IR 1447758 0109 Cooling Pump and Control Yes Will require screwdriver 4Q2013 WO 01587273 Open Transfer Switch Panels and to open.
Status Cabinets CONTROL (20)
PANEL Unit Instrumentation Tight thumbscrews.
IR 1447758 D00-ACP 2/3 Auxiliary and Control Yes Will require screwdriver 4Q2013 WO 01587273 Open Control Panel Panels and to open.
Cabinets AE-4
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 COMPONENT EQUIPMENT ACCESSIBLE IF NOT ACCESSIBLE, MILESTONE TRACKING STATUS/I IDDESCRIPTION CLASS (Y/N)
WHY?
COMPLETION NUMBER INSPECTION (IR No.)
RESULTS Tools required.
There are two panels at this point. The CONTROL (20) larger of the two can be PANEL Unit Instrumentation opened. The smaller 4Q2013 D00-DGCP 2/3 Diesel and Control Partial (mounted on the right WO 158 Open Generator Panels and side) cannot be opened Partial WO 01587273 Control Panel Cabinets without the use of tools. The panel label is located on the smaller panel.
DOO-NGC CONTROL (20)
(This is PANEL! Unit Instrumentation IR 1447758 assumed to be 2/3 Neutral and Control Yes N/A 4Q2013 O 01587273 Open EPN 2/3-6600-Grounding Panels and NGT)
Cabinet Cabinets CONTROL (20)
NO OTHER D03-0903-PANELS/
Instrumentation ADVERSE and Control YES N/A 7/30/2012 N/A SEISMIC 0003 Control Panel CONDITIONS 9Panels and (NO PHOTO 3Cabinets ALLOWED)
CONTROL (20)
NO OTHER Instrumentation D03-0903-PANELS/
ADVERSE 0015 Control Panel and Control YES N/A 7/30/2012 N/A SEISM 9 0311 C o n t r o l a nn e
S E IS M IC Panels and 903-15 CaiesCONDITIONS AE-5
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 COMPONENT DESCRIPTION EQUIPMENT ACCESSIBLE IF NOT ACCESSIBLE, MILESTONE TRACKING STATUS/
ID CLASS (Y/N)
WHY?
COMPLETION NUMBER INSPECTION (IR No.)
RESULTS CONTROL (20)
NO OTHER D03-0903-PANELS/
Instrumentation ADVERSE 0028 Control Panel and Control YES N/A 7/30/2012 N/A SEISM 903-28 Panels and CONDITIONS Cabinets CONTROL (20)
NO OTHER D03-0903-PANELS/
Instrumentation ADVERSE and Control YES N/A 7/30/2012 N/A SEISMIC 0039 Control Panel CONDITIONS Panels and 903-39 Cabinets (NO PHOTO ALLOWED)
(NO POTHE CONTROL (20)
NO OTHER D03-0923-PANELS/
Instrumentation ADVERSE 0005 Control Panel and Control YES N/A 7/30/2012 N/A SEISMIC 0005 Panels and CONDITIONS Cabinets (NO PHOTO ALLOWED)
CONTROL (20)
Instrumentation D03-2253-PANEL/ DG an oto e
/
Q03 IR 1447758 and and Control Yes N/A 4Q2013 W 01587273 Open 0010 Metering ad Panels and Relay Cabinet Canets Cabinets AE-6
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 TRACKING STATUS /
COMPONENT DESCRIPTION EQUIPMENT ACCESSIBLE IF NOT ACCESSIBLE, MILESTONE NUMBER INSPECTION ID CLASS (Y/N)
WHY?
COMPLETION NoM)
RESTS (IR No.)
RESULTS CONTROL (20)
D03-2253-PANEL DG Instrumentation Thumbscrews. May IR 1447758 0021 Excitation and Control Yes require screwdriver to 4Q2013 WO 01587273 Open Panels and open.
CabinetCabinets O
(20)
Tools required.
DISTRIBUTAE N
Instrumentation Internal inspection of D03-7838-1-1 PANELS/
and Control Yes mountings will require 4Q2013 IR 1447758 Open P06 Distribution removal of cover over WO 01587273 Panel 8-1-1 Panels and Panel 38-1-1 Cabinets breakers (similar to home breaker cabinet)
Tools required.
There are two panels at this point. The CONTROL (20) larger of the two can be PANEU Unit 3 Instrumentation opened. The smaller IR 1447758 D03-DGCP Diesel and Control Yes (mounted on the right 4Q2013 WO 01587273 Open Generator Panels and side) cannot be opened Control Panel Cabinets without the use of tools. The panel label is located on the smaller panel.
D03-NGC CONTROL (20)
(This is PANEU Unit 3 Instrumentation assumed to be Neutral and Control Yes N/A 4Q2013 WO 01587273 Open EPN 3-6600-Grounding Panels and NGT)
Cabinet Cabinets AE-7
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 COMPONENT EQUIPMENT ACCESSIBLE IF NOT ACCESSIBLE, MILESTONE TRACKING STATUSP
/
IDDESCRIPTION CLASS (Y/N)
WHY?
COMPLETION NUMBER INSPECTION (IR No.)
RESULTS INSTRUMENT NO OTHER D03-2203-RACKS/
(18)
ADVERSE 0030 RnSt Instruments on YES N/A 7/30/2012 N/A SEISM 0070A Instrument RcsSEISMIC Racks Rack 2203-70A CONDITIONS CONTROL Energized racks that D03-2203-PANEL ATS (18)
No pose electrical safety 4Q2014 Open 0073A Panel 2203-73A Control Panel hazard and operational IIR 1493216 safety risks.
CONTROL PANEL/
Energized racks that D03-2253-Instrument (18)
No pose electrical safety 402014 IR 1493216 Open 0084 Cabinet Control Panel hazard and operational 2253-84 safety risks.
480V AC/
Internal D03-7338 ------ Transformer 38, (04)
This is a Transformer, IR 1440231 Inspection Not T10 Feed to Transformers not a panel or cabinet.
WO 99212406 Applicable Switchgear 38 HPCI/ HPCI Internal D03-2380-----Turbine This is a Switch, not a IR 1440230 Internal D328....TrieSwitch N/A N/A Inspection Not PSH Pressure panel or cabinet.
WO 654449 Switch High Applicable AE-8
Dresden Generating Station Unit 3 Correspondence No.: RS-1 3-067 Appendix AF Peer Review Report This appendix includes the Peer Review Team's report on the follow-on seismic Walkdowns and Walk-Bys.
AF-1
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Peer Review Report for Near Term Task Force (NTTF) Recommendation 2.3 Seismic Walkdown Inspection of Dresden Nuclear Power Station Unit 3 Annex A March 28, 2013 Prepared by Peer Reviewers Mohammad Hosain fTeam Leader)
Bryan Weight Mohammad Hosain/
/*,A4
,-A.
,/f/,
?
Peer Review Team Leader Certification Signature Date AF-2
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 IIntroduction 1.1 OVERVIEW This report documents the independent peer review for the Near-Term Task Force (NTTF)
Recommendation 2.3: Seismic Walkdown, Annex A follow-on activities performed by Exelon Dresden Engineering Department for Unit 3 of the Dresden Nuclear Power Station (DNPS). This peer review includes review of pages iii and ix of Report RS-12-167 as updated to reflect Annex 'A'. The peer review process includes the following activities:
Review the checklists of the items completed during the follow-on Seismic Walkdowns and Area Walk-Bys.
Review the licensing basis evaluations.
Review the decisions for entering the adverse seismic conditions identified during the follow-on walkdowns into the plant's Corrective Action Plan (CAP).
Review the final submittal report (Annex A).
Summarize the results of the peer review process in the final submittal report.
This peer review does not include the review of the selection of the structures, systems, and components (SSCs) included in this follow-on walkdown as they were included in the initial report and had been reviewed under the peer review of that report.
1.2 Peer Reviewers The peer reviewers for DNPS, Unit 3 are Messrs. Mohammad Hosain and Bryan Weight, all of Dresden.
Mr. M. Hosain is designated the Peer Review Team Leader. None of the aforementioned engineers were SWEs in the follow-on seismic walkdown inspections, and they are independent from the inspecton resultsand selection of SSCs. Mr. Hosain is independent of all aspects of this project. Mr. Weight was the Licensing Basis and IPEEE reviewer for the initial report but there were no changes to the Licensing Basis and IPEEE evaluations for this updated Annex A. Mr. Hosain is an equipment seismic qualifications engineer, with over 30 years of nuclear seismic experience. He is also a Seismic Capability Engineer (EPRI SQUG training). Mr. Weight has over 35 years of experience, 15 years of nuclear structural and seismic experience, covering all aspect of Civil/Structural Engineering. He is also a Seismic Capability Engineer (EPRI SWE & SQUG training).
No issues were identified which challenged the current licensing basis.
1.3 SWEL Development No new equipment was added to the SWEL presented in the initial report.
AF-3
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 1.4 Seismic Walkdown Inspection The peer review of the follow-on seismic walkdown inspection started on November 13, 2013 with a peer check of the actual walkdown by Mr. Bryan Weight. Mr. Weight joined the walkdown team to observe the conduct of the walkdowns and adherence to the Seismic Walkdown Guidance (SWG) 1. The peer review discussions on the follow-on activities are documented in Section 3.
Foot Note:
- 1. Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, EPRI Report 1025286, June 2012.
AF-4
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 2Peer Review - Selection of SSCs 2.1 PURPOSE The purpose of this section is to describe the process to perform the peer review of the selected structures, systems, and components, (SSCs) that were included in the Seismic Walkdown Equipment List (SWEL).
However, this peer review is performed for the SSC's that were previously inaccessible and were completed during the follow-on Seismic Walkdowns and Area Walk-Bys. There are no changes to the SWEL, so the selection of new SSCs and SWEL development do not apply in this case.
AF-5
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 31Review of Follow-on Seismic Walkdown & Area Walk-By Checklists 3.1 OVERVIEW A peer review of the follow-on activities started with observation of walkdown team in November 2012. A peer review of Annex A, including SWCs and AWCs completed for the follow-on items identified in Tables A3-1 and A3-2, was performed on March 25 and 26, 2013, subsequent to performance of those activities. It was concluded that the walkdown team performed their assessments and evaluation properly.
3.2 FOLLOW-ON SEISMIC WALKDOWN CHECKLISTS 100% of the equipment inspected during the follow-on walkdowns are included in the peer review, see follow-on Seismic Walkdown, and Area Walk-By Checklists presented below Table A3-1 Follow-on Seismic Walkdown Checklists Component ID Description Observations D03-0302-0156AV05 CRD/ East Bank Scram Discharge Volume Drain Valve No concerns D03-0302-0157AV05 CRD/ East Bank Scram Discharge Volume Drain Valve No concerns D03-1601-0021-V05 PRESSURE SUPPRESSION/ Drywell Purge Line Valve No concerns D03-1601-0022-V05 PRESSURE SUPPRESSION/ Drywell/Torus Purge Line Valve No concerns D03-2001-0005-VO5 RB EQUIPMENT DRAIN/ Drywell Equipment Drain Line Valve No concerns D03-2001-0105-V05 RB EQUIPMENT DRAIN/ Drywell Floor Drain Line Valve No concerns D03-0202-0005AV20 REACTOR RECIRCULATION/ Recirc Pump A Discharge Valve No concerns D03-0203-0001AV05 MAIN STEAM/ Isolation Valve No concerns D03-0203-0003AV26 ADS/ Target Rock Valve No concerns D03-0203-0003BV26 ADS/ Electromatic Relief Valve No concerns D03-0203-0004AV26 ADS/ Reactor Overpressure Relief Valve No concerns D03-1301-0004-V20 ISOLATION CONDENSER/ Steam Return Line Isolation Valve No concerns D03-2301-0008-V20 HPCI/ HPCI Pump Injection Line Valve No concerns D03-83250-A01-MO5 250V DC/ Breaker to TB MCC #3 (ROB-Battery #3)
No concerns D03-0302-0082B-LT CRD/ East Bank SDV Tank Level Transmitter No concerns AF-6
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 Table A3-2 Follow-on Seismic Walkdown Checklists for Supplemental Internal Inspections I Component ID Description Observations D03-7338 ------
S35 480V AC/ Switchgear 38 No concerns Table A3-3 Follow-on Area Walk-By Checklists Area Area Description Components Observations Within Area D03-0302-0156AV05 D03-0302-0157AV05 Outage-1 Torus Catwalk Bay 4 D03-1601-0021-V05 No concerns D03-1601-0022-VO5 D03-2001-0005-V05 Outage-2 Torus Catwalk Bay 14 D03-2001-0105-V05 No concerns Outage-3 Drywell Basement - 1200 D03-0202-0005AV20 No concerns Outage-4 Drywell Ground Floor - 0' D03-0203-0001AV05 No concerns D03-0203-0003AV26 Outage-5 Drywell 2nd Floor -45°-90° D03-0203-0003BV26 No concerns D03-0203-0004AV26 Outage-6 Drywell 2nd Floor - 1900 D03-1301-0004-V20 No concerns Outage-7 MSIV Room / X-Area D03-2301-0008-V20 No concerns Outage-8 Battery Charger Room D03-83250-A01-M05 No concerns AWC-U3-12 East HCU Bank D03-0302-0082B-LT No concerns 3.3 EVALUATION OF FINDINGS There were no findings of seismic significance and there were no issues that challenged the licensing bases.
The outcome of the walkdowns indicated that there were no major concerns from the inspections conducted, and the peer reviewers consider the engineering judgments made by the inspectors as appropriate and acceptable, per the EPRI Seismic Walkdown Guidance.
Further, all the outstanding corrective action issues in Report RS-1 2-167 have been addressed, as well as a corrective action identified during follow-on Area Walk-Bys, as shown in Table A5-3 of Annex A.
AF-7
Dresden Generating Station Unit 3 Correspondence No.: RS-1 3-067 4 Review of Licensing Basis Assessments There were no issues that challenged the licensing bases for the follow-on items, so there were no assessments required. The peer reviewers concur with this outcome.
AF-8
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 5 Review Final Submittal Report & Sign-off The final supplemental report (Annex A) has been reviewed by Mr. Mohammad Hosain per the requirements of EPRI Seismic Walkdown Guidance (EPRI 1025286), and found to be acceptable.
The review comments have been duly addressed and appropriately incorporated in the Report.
The report meets the objectives and requirements of the 50.54(f) letter.
AF-9
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 6References
- 1. NRC Letter, 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, dated March 12, 2012.
- 2. EPRI Technical Report 1025286, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, dated June 2012.
AF-10
Dresden Generating Station Unit 3 Correspondence No.: RS-13-067 A G IPEEE Vulnerability Status See Appendix G of initial report, no changes to the IPEEE vulnerability status was made for this Annex A.
AG-I