Text

ASME Section XI Inservice Inspection Program Relief Request N2-14-LMT-003 Fourth Interval Third Period Limited Examinations
	ML21348A711
Person / Time
Site:	North Anna ; (NPF-004)
Issue date:	12/13/2021
From:	Mark D. Sartain; Virginia Electric & Power Co (VEPCO)
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	21-087
	Download: ML21348A711 (72)
	v • d • e

{{#Wiki_filter:VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 10 CFR 50.55a December 13, 2021 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555 Serial No.: NRA/ENC: Docket No.: License No.: 21-087 RO 50-339 NPF-4 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION ENERGY VIRGINIA) NORTH ANNA POWER STATION UNIT 2 ASME SECTION XI INSERVICE INSPECTION PROGRAM RELIEF REQUEST N2-14-LMT-003 FOURTH INTERVAL THIRD PERIOD LIMITED EXAMINATIONS Pursuant to 1 O CFR 50.55a(g)(5)(iii), Virginia Electric and Power Company (Dominion Energy Virginia) requests relief from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code), Section XI, "Rules for lnservice Inspection of Nuclear Power Plant Components," requirement for "essentially 100 percent" volumetric examination coverage of certain risk-informed piping welds performed during inservice inspection (ISi) examinations in the third period of the fourth 10-year ISi interval for North Anna Power Station Unit 2 (NAPS2). Examinations of these welds were performed to meet the requirements of the 2004 Edition of ASME Code Section XI with no Addenda and the Risk-Informed/Safety-Based lnservice Inspection (RI-ISi) Program Plan based on Code Case N-716, "Alternative Piping Classification and Examination Requirements." Limited access and configuration of these components prevents full volumetric examination coverage of these welds. The attached Relief Request N2-I4-LMT-004, "Fourth Interval Third Period Limited Examinations," provides the basis for this request and supports the determination that the applicable ASME Code requirements are impractical. In accordance with 10 CFR 50.55a(g)(5)(iii), the requested relief must be submitted to the Nuclear Regulatory Commission (NRG) no later than 12 months after the expiration of the 120-month inspection interval for which relief is sought. The NAPS2 fourth interval ended December 13, 2020.

Serial No.: 21-087 Docket No.: 50-339 Page 2 of 3 If you have any questions or require additional information, please contact Erica Combs at (804 )-273-3386. Sincerely, Mark D. Sartain Vice President - Nuclear Engineering and Fleet Support

Attachment:

Relief Request N2-14-LMT-004, "Fourth Interval Third Period Limited Examinations" Commitments made in this letter: None

cc: Regional Administrator, Region II U. S. Nuclear Regulatory Commission Marquis One Tower 245 Peachtree Center Ave., NE, Suite 1200 Atlanta, Georgia 30303-1257 G. Miller NRC Senior Project Manager - North Anna Power Station U. S. Nuclear Regulatory Commission Mail Stop 09 E-3 One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2738 Old Dominion Electric Cooperative R-North-Anna-Correspondence@odec.com NRC Senior Resident Inspector North Anna Power Station Serial No.: 21-087 Docket No.: 50-339 Page 3 of 3

ATTACHMENT Relief Request N2-14-LMT-004, Serial No.: 21-087 Docket No.: 50-339 "Fourth Interval Third Period Limited Examinations" Virginia Electric and Power Company (Dominion Energy Virginia) North Anna Power Station Unit 2

TABLE OF CONTENTS Serial No.: 21-087 Docket No.: 50-339 Attachment Page 1 of 68 1.0 ASME Code Component{s) Affected................................................................... 3 2.0 Applicable Code Edition and Addenda............................................................... 3 3.0 Applicable Code Requirement............................................................................. 3 R1 Elements Subject To Thermal Fatigue........................................................ 5 4.R1 Impracticality of Compliance 5.R1 Burden Caused by Compliance 6.R1 Proposed Alternative and Basis for Use R2 Elements Subject To lntergranular or Transgranular Stress Corrosion Cracking................................................................................... 28 4.R2 Impracticality of Compliance 5.R2 Burden Caused by Compliance 6.R2 Proposed Alternative and Basis for Use R3 Elements Not Subject To A Degradation Mechanism............................. 44 4.R3 Impracticality of Compliance 5.R3 Burden Caused by Compliance 6.R3 Proposed Alternative and Basis for Use 7.0 Duration of Proposed Alternative..................................................................... 67 8.0 Precedents......................................................................................................... 67 9.0 References......................................................................................................... 67

LIST OF ENCLOSURES Serial No.: 21-087 Docket No.: 50-339 Attachment Page 2 of 68 Enclosure R1-1: 12050-WMKS-0109D / 14-RC-410 / 3 Data Report......................................... 9 Enclosure R1-2: 12050-WMKS-0103AG / 6-RC-416 / 3A Data Report..................................... 15 Enclosure R1-3: 12050-WMKS-0103AH / 6-RC-421 / 1 Data Report........................................ 23 Enclosure R2-1: 12050-WMKS-0103AH / 6-SI-416 / 10 Data Report........................................ 31 Enclosure R2-2: 12050-WMKS-0103BN / 6-SI-532 / 19 Data Report........................................ 35 Enclosure R2-3: 12050-WMKS-0113C-1 / 12-SI-469 / 8 Data Report.......................................40 Enclosure R3-1: 12050-WMKS-0102D / 6-WFPD-419 / SW-60W (BPL 473) Data Report.........4 7 Enclosure R3-2: 12050-WMKS-0101A-4 / 32-SHP-457 / SW-8 (BPL 116) Data Report............. 54 Enclosure R3-3: 12050-WMKS-0101A-4 / 32-SHP-458 / SW-7 (BPL 209) Data Report............. 60 LIST OF TABLES Table 1. Repetitive/Duplicative Requests Requested in Accordance with 10 CFR 50.55a(g)(5)(iii), lnservice Inspection Impracticality.................... 4

RELIEF REQUEST N2-I4-LMT-004: Serial No.: 21-087 Docket No.: 50-339 Attachment Page 3 of 68 NAPS2 FOURTH INTERVAL THIRD PERIOD LIMITED EXAMINATIONS Relief Request in Accordance with 10 CFR 50.55a(g)(5)(iii) -- Notification of impractical ISi Code requirements -- 1.0 ASME CODE COMPONENT(S) AFFECTED Refer to Table 1, Columns 1 and 2. 2.0 APPLICABLE CODE EDITION AND ADDENDA The North Anna Power Station Unit 2 (NAPS2) applicable Code for the fourth 10-year inservice inspection (ISi) interval and the ISi Program is the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (BPVC), Section XI, 2004 Edition with no Addenda [Reference 1]. The NAPS2 fourth interval started on December 14, 2010 and ends on December 13, 2020. 3.0 APPLICABLE CODE REQUIREMENT Refer to Table 1, Column 3. Components identified in this request require examination of essentially 100 percent of the weld length. "Essentially 100 percent" as clarified by ASME Code Case N-460, "Alternative Examination Coverage for Class 1 and Class 2 Welds," [Reference 2] is greater than 90 percent coverage of the examination volume or surface area, as applicable. The risk-informed welds described in this request are governed by the Risk-Informed / Safety-Based lnservice Inspection (RI-ISi) Program Plan that was approved by the NRG for NAPS2 by letter dated January 21, 2011 [Reference 3]. The welds are assigned category R-A, Items R1.11, R1.16, and R1.20, and require ultrasonic examination. The NAPS2 RI-ISi Program Plan, in accordance with Request for Alternative N2-14-Rl-001, applies the requirements of ASME Code Case N-716, "Alternative Piping Classification and Examination Requirements." The Item R1.11 elements are considered subject to Thermal Fatigue as the most likely degradation mechanism. The Item R1.16 elements are considered subject to lntergranular or Transgranular Stress Corrosion Cracking (IGSCC or TGSCC) as the most likely degradation mechanism. The Item R1.20 elements are not subject to a degradation mechanism. Limited examinations in this request are in accordance with section 3.3.2 of approved request N2-14-Rl-001 [Reference 3].

Table 1. Repetitive/ Duplicative Requests 1 2 3 Request ASME Applicable No. Code Component ID No. Code Component Requirement Exam Category R-A Item No. R1.11 Elements R1 Subject to 12050-WMKS-0109D I 14-RC-410 / 3 Thermal Fatigue 12050-WMKS-0103AG I 6-RC-416 / 3A 12050-WMKS-0103AH / 6-RC-421 / 1 Exam Category R-A Item No. R1.16 Elements R2 Subject to 12050-WMKS-0103AH / 6-SI-416 / 10 IGSCCor TGSCC 12050-WMKS-01038N / 6-SI-532 / 19 12050-WMKS-0113C-1 / 12-SI-469 / 8 Exam Category R-A Elements Item No. R1.20 Not Subject 12050-WMKS-0102D / 6-WFPD-419 / SW-60W (BPL 473) R3 to a Degradation Mechanism 12050-WMKS-0101A-4 / 32-SHP-457 I SW-8 (BPL 116) 12050-WMKS-0101A-4/ 32-SHP-458/ SW-7 (BPL209) 4 5 Impracticality Burden Caused of by Compliance Compliance See See Paragraph 4.R1 Paragraph 5.R1 50% Volume Coverage 50% Volume Coverage 50% Volume Coverage See See Paragraph 4.R2 Paragraph 5.R2 50% Volume Coverage 50% Volume Coverage 50% Volume Coverage See See Paragraph 4.R3 Paragraph 5.R3 75% Volume Coverage 75% Volume Coverage 75% Volume Coverage Serial No.: 21-087 Docket No.: 50-339 Attachment Page 4 of 68 6 7 Proposed Duration of Alternative Proposed and Basis for Use Alternative See See Paragraph 6.R1 Paragraph 7 See See Paragraph 6.R2 Paragraph 7 See See Paragraph 6.R3 Paragraph 7

R1. Risk-Informed Piping Welds Subject to Thermal Fatigue 4.R1 IMPRACTICALITY OF COMPLIANCE Serial No.: 21-087 Docket No.: 50-339 Attachment Page 5 of 68 In accordance with 10 CFR 50.55a(g)(5)(iii), relief is requested from the "essentially 100 percent" volumetric examination coverage requirement for the piping welds identified below. This requirement is considered impractical primarily due to single-sided access and the configuration of these components. Weld Line No. 3 14"-RC-410 3A 6"-RC-416 1 6"-RC-421 NOTES: 1 Up Dwn cw ccw 2 BE Scan Enclosure Exam1 Exam Coverage Date (%)2 Dwn/CW/CCW 50% Dwn/CW/CCW R1-1 3/09/2018 +25% BE Up Dwn/CW/CCW 50% Dwn/CW/CCW R1-2 3/12/2019 +25% BE Up Up Dwn/CW/CCW 50% Dwn/CW/CCW R1-3 3/11/2019 +25% BE Up Axial scan on the upstream side of weld Axial scan on the downstream side of weld Circumferential scan in the clockwise direction Circumferential scan in the counterclockwise direction Angle (degree) 45 60 60 45 60 60 70 45 60 60 Best Effort non-Code coverage used to gain additional information Mode Frequency (MHz) Shear 2.25 Sheer 2.25 Longitudinal 2.0 Shear 2.25 Shear 2.25 Longitudinal 2.0 Sheer 2.25 Shear 2.25 Shear 2.25 Longitudinal 2.0 The above examinations were performed manually using advanced ASME Section XI, Appendix VIII demonstrated procedures and techniques in accordance with the performance demonstration requirements. Based on the access and physical limitations of these welds, alternative or other advanced technologies would not have provided complete coverage of the examination volume at the time of these examinations. Enclosures R1-1 through R1-3 include the complete Ultrasonic Examination Data Records for each Category R-A, Item R1.11, examination included in this relief request. Each report includes details of the UT scanning apparatus, including transducer size,

Serial No.: 21-087 Docket No.: 50-339 Attachment Page 6 of 68 frequency, angle, wave modality and insonification angles. Also included are scan plots for each of the examinations showing the piping configuration and percent coverage for each individual scan. No recordable indications were identified for any of these examinations other than geometry indications at the valve ID of weld 3A. Weld 3 (14"-RC-410), Reactor Coolant System (RCS) Class 1, was a single-sided examination (50 percent coverage) due to the weldolet to pipe configuration, limiting upstream scans. The weld is at the loop piping weldolet to the Pressurizer Surge Line. An additional "Best Effort" (non-Code) scan with a 60-degree Longitudinal search unit obtained an additional 25 percent total coverage of the upstream side of the weld. A Liquid Penetrant examination was also performed on the weld, with no reportable indications. Line# 14"-RC-410 is 2,485 lb., centrifugally cast stainless-steel piping, SA-376 Type 304, 304-N, or Type 316 with pipe wall thickness corresponding to Schedule 160. The nozzle conforms to ASTM A182 Grade F304, F304N, or Type 316. Weld 3 is constructed with Type 308 welding filler metal. Similar relief was granted in the third interval for the pressurizer nozzle-to-pipe weld SW-5 [Reference 5]. Weld 3A (6"-RC-416), RCS Class 1, was a single-sided examination (50% coverage) due to the valve-to-elbow configuration, limiting upstream scans. The weld is at the check valve from the Low Head Safety Injection (SI) system into the RCS hot leg (29"-RC-401 ). An additional "Best Effort" (non-Code) scan with a 60-degree Longitudinal search unit obtained 25 percent additional total coverage of the upstream side of the weld. Line# 6"- RC-416 is 1,500 lb., Type 316 seamless stainless-steel piping. Weld 3A is constructed with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 IN316L procured with 8-20 FN delta ferrite and 75 ksi minimum tensile strength. Weld 3A is also managed as part of the augmented thermal fatigue examination requirements of MRP-146 like other welds with similar configurations. Similar relief was granted in the third interval for weld 1 (6-RC-417) and weld 1 (6-RC-420) [Reference 5]. Weld 1 (6"-RC-421 ), RCS Class 1, was a single-sided examination (50% coverage) due to the valve-to-elbow configuration, limiting upstream scans. The weld is at the check valve from the Low Head SI system into the RCS hot leg (29"-RC-407). An additional "Best Effort" (non-Code) scan with a 60-degree Longitudinal search unit obtained 25 percent additional total coverage of the upstream side of the weld. Line# 6"-RC-421 is 1,500 lb., Type 316 seamless stainless-steel piping. Weld 1 is constructed with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 IN316L procured with 8-20 FN delta ferrite and 75 ksi minimum tensile strength. Similar relief was granted in the third interval for weld 1 (6-RC-417) and weld 1 (6-RC-420) [Reference 5]. The NAPS2 RI-ISi Program is based on ASME Code Case N-716 as identified in approved request N2-I4-Rl-001 [Reference 3]. The subject limitations have been

Serial No.: 21-087 Docket No.: 50-339 Attachment Page 7 of 68 evaluated as acceptable, with no impact on risk analysis, and no further actions necessary to provide reasonable assurance of pressure boundary leak tightness. The subject welds are included in the Class 1 pressure boundary, receiving visual examinations at the beginning of each refueling outage (RFO) as part of the Boric Acid Corrosion Control Program and VT-2 visual examinations at the end of the RFO after operating pressure and temperature is achieved before unit startup. Weld examinations for welds 3, 3A, and 1 were single-sided, but additional non-Code coverage was obtained (Best Effort Coverage) on the critical inside surface volume of both the weld and heat-affected area. These additional measures provide reasonable assurance that these welds are structurally sound. The subject welds were selected as part of an examination program that includes selections from different piping configurations, as well as selections from piping configurations categorized with different degradation mechanisms. 5.R1 BURDEN CAUSED BY COMPLIANCE The physical configuration of these welds, valve-to-pipe, elbow-to-branch, and a welded tag at an elbow, confines inspection capabilities. Detailed sketches of the limitations and inspection areas achieved have been provided. No further action can be taken to enable better examination coverage without destroying the component. 6.R1 PROPOSED ALTERNATIVE AND BASIS These welds were selected as they are determined to be of High Safety Significance with possible active degradation mechanisms. Selections were made based on plant specific operating experience or history of examination, weld repairs, random selection across different pipe sizes and configurations, and radiation concerns. These welds were selected, in part, because a previous Section XI examination history exists. Comparison of examination results over time is critical t6 detect service induced degradation. Inspection of these particular welds are considered the best choice for meaningful examination results. It is proposed that the examinations already completed at the reduced coverage be accepted for meeting the Code requirements. 100% of the pipe-to-valve welds were volumetrically examined from one side. No indications were discovered. The limited volumetric examinations performed should detect any general patterns of degradation that may occur in the areas covered, therefore providing reasonable assurance of the continued structural integrity of the subject welds. In addition, these welds receive a visual

Serial No.: 21-087 Docket No.: 50-339 Attachment Page 8 of 68 examination during the system leakage test performed at the end of each RFO. As a result of the completed examinations, any pattern of degradation should be detected, thereby providing reasonable assurance of operational readiness. The purpose of the ISi program is to assure the structural and pressure-retaining integrity of safety-related nuclear power plant components in accordance with the rules of the ASME Code, Section XI and the requirements of 10 CFR 50.55a. Although Dominion could select only weld locations where greater than 90% examination coverage is possible (when available based on selection criteria), meeting the purpose of the Code requires selecting a mix of not only piping-to-piping welds (where essentially 100 percent coverage is more likely), but also piping-to-valve welds, piping-to-pump welds, piping-to-vessel welds, socket welds, nozzle-to-pipe welds, etc. The ASME Code allows only 50 percent Code coverage for single-sided examinations. In cases other than most piping-to-piping welds the majority of weld examinations are considered single-sided examinations. The risk-informed weld limitations are considered in ASME Code Case N-716 periodic updates to the Risk-Informed Program Plan, where the program is reevaluated to determine if any changes to the examination selections need to be made, including additional examinations if they are warranted. The limited examinations identified in this request have no impact on the change-in-risk evaluation for the third period, and no new examinations were added as a result of these limitations.

Dominion Code: Drawing No.: System ID: RC Site/Unit i NAPS Summary No.: N2.R1.11.314 UT Calibration!Examination 2 Procedure: Procedure Rev.: Works cope: ISi Work Order No.: 2004 Edition Cat/Item: R-A/R1.11 12050-WMKSi0109D

== Description:== Weldolet to Elbow ER-AA-NDE-UT-802 Outage No.: N2R26 5 Report No.: UT-19 -073 59203136641 Page: 1 of 5 Location: C-LOOP Component ID: 12050-WMKS-0109D / 14-RC-410 / 3 Size/Length: 1.25" f 44.0n Thickness/Diameter: 1.406u / 14.0" Limitations: Single sided due to weld-a-let.I See attached Start Time: 1258 Finish Time: 1313 Instrument Settings t Search Unit i Cal. Time Date Axial Oriented Search Unit Serial No.: 140723807 I Serial No.: 01CXBL Checks Calibration Signal Sweep Manufacturer: Olympus Manufacturer: KBA Initial Cal. 1015 3/9/2019 Reflector Amplitude% Division Sound Path Model: EPOCH 600 Linearity: L-19.po1 Size: 0.5" Model: Comp-G Inter. Cal. 1258 3/9/2019 1.50" Notch 80 5.3 2.11" Delay: 6.611 Range: !4.00 Freq.: 2.25MHz Center Freq.: NIA Inter. Cal. NIA M'!ICalNel: 0.1230 Pulser: Square Inter. Cal. 1313 3/9/2019 Exam Angle: 45 Squint Angle: NIA Damping: 400 Reject I 0 Final Cal. 1559 3/9/2019 Measured Angle: 45 Mode: Shear 12.25 Rep. Rate: Auto Freq.: Exit Point 0.20

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Couplant IFW Filter: 0.5-4.0 Mode: Cal. Batch: 17F087 Circumferential Oriented Search Unit IN/A Config.: Single Focus: NIA Voltage: 400 other: Type: Sonotech Calibration Signal Sweep Shape: Round Contour: Flat Reflector Amplitude% Division Sound Path i Mfg.: Sonotech i Wedge Style: MSWQC NIA Ax. Gain (dB): 13.0 Circ. Gain (dB): I NIA Exam Batch: 17F087 Sound Path Search Unit Cable 10 Screen Div. = 4.00 in. of Type: Sonotech I Type: RG174 Length: 6 No. Conn.: 0 - Mfg.: Sonotech Calibration Block i i Scan Coverage Cal. Block No. 05-8514 Upstream D Downstream~ Scan dB: 25.0 Reference Block Reference/Simulator Block Thickness 2.25" Dia.: oi -- Serial No.: 05-6533 Gain Signal Sweep Sound Path cw~ ccw~ scan dB:* 25.o dB Reflector Amplitude% Division Cal. Blk. Temp. 71 Temp. Tool: ATK12 -- Type: SS Rompus Block Exam Surface: OD 13.0 SDH 22 2.6 1.054 Comp.Temp. 86 Temp. Tool: ATK12 Surface Condition: Ground Smooth Recordable Indication s : ( } NRI ~ Yes D RID No (If Yes, Ref. Attached Ultrasonic Indication Report.) Results: Percent Of Coverage Obtained > 90%: Examiner Level Johnson, Jeffrey M. Examiner Level Zollner, Brian D Other NIA Level UT Calibration/Examination No Geom D Reviewed Previous Data: Signature Signature Signature NIA Date 3/9/2019 Date Comments: None m

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Dominion Site/Unit: i NAPS 2 UT Calibration/Examination Procedure: ER-AA-NDE-UT -802 Outage No.: N2R26 Summary No.: N2.R1.11.314 Procedure Rev.: 5 Report No.: UT-19 -073 Workscope: ISi Work Order No.: 59203136641 Page: 2 of 5 Code: 2004 Edition CaUltem: R-A/R1.11 Location: C-LOOP Drawing No.: 12050-WMKSi0109D

== Description:== Weldolet to Elbow System ID: RC -----------'------------------------------------------------- Component ID: 12050-WMKS-0109D / 14-RC-4°\\0 / 3 Size/Length: 1.25" / 44.0" Thickness/Diameter: 1.406" / 14.0" Limitations: Single sided due to weld-o-let.lsee attached. Start Time: 1314 Finish Time: 1328 Instrument Settings I Search Unit Cal. Axial Oriented Search Unit i Time Date Serial No.: 140723807 i Serial No.: 0OF1DL Checks Calibration Initial Cal. Signal Sweep Sound Path Manufacturer: Olympus I Manufacturer: KBA 1034 3/9/2019 Reflector Amplitude% Division I Model: EPOCH 600 Linearity: L-19 ~001 Size: 0.50" Model: Comp-G Inter. Cal. 1314 3/9/2019 1.50" Notch 80 5.3 2.634 Delay: 8.311 Range: ls.oo Freq.: 2.25MHZ Center Freq.: N/A Inter. Cal. NIA I Inter. Cal. 1328 3/9/2019 M'tlCalNel: 0.1230 Pulser: Square Exam Angle: 60 Squint Angle: N/A Final Cal. 1601 3/9/2019 Damping: 400 Reject 0 Measured Angle: 60 Mode: Shear Rep. Rate: Auto Freq.: 12.25 Exit Point Couplant 0.30

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1 Filter: 0.5-4.0 Mode: !FW Config.: -- Cal. Batch: 17F087 Circumferential Oriented Search Unit Single Focus: N/A Voltage: 400 Other: IN/A Type: Sonotech Calibration Signal Sweep Shape: Round Contour: Flat Reflector Amplitude% Division Sound Path I Mfg.: Sonotech I NIA Wedge Style: MSWQC NIA Ax. Gain (dB): 30.0 Circ. Gain (dB): Search Unit Cable Exam Batch: 17F087 I 10 Screen Div. = 5.00 in. of Sound f'ath Type: RG174 Length: 6 No. Conn.: 0 Type: Sonotech i Mfg.: Sonotech Calibration Block Scan Coverage Cal. Block No. 05-8514 Upstream O Downstream~ Scan dB: 42.0 Reference Block Reference/Simulator Block Thickness 2.25" Dia.: ol Gain Signal Sweep Sound Path cw~ ccw~ Scan dB: 42.0 Serial No.: 05-6533 dB Reflector Amplitude% Division Cal. Blk. Temp. 71 Temp. Tool: ATKf2 -- Type: SS Rompus Block Exam Surface: OD 30.0 FSDH 75 2.9 1.483 Comp.Temp. 86 Temp. Tool: ATKf2 Surface Condition: Ground Smooth N~ 2) Recordable lndication(s): Yes O (If Yes, Ref. Attached Ultrasonic Indication Report.) Results: NRI ~ RID Geom C Comments: Effective coverage using the 60 Deg search unit has been verified by the presence of the weld root response during the required scans. Percent Of Coverage Obtained > 90%: Examiner Level Johnson, Jeffrey M. Examiner Level Zollner, Brian D Other NIA Level UT Calibration/Examination No Reviewed Previous Data: NIA Date Signature Date m

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UT Calibration/Examination Dominion Site/Unit: NAPS 2 Procedure: ER-AA-NDE-UT-802 Outage No.: N2R26 Summary No.: ------'------------ N2.R1.11.314 Procedure Rev.: 5 Report No.: UT-19 -073 Works cope: ISi Work Order No.: 59203136641 Page: 3 of 5 Code: 2004 Edition CatJltem: R-A/R1.11 Location: C-LOOP Drawing No.: 12050-WMKslo109D

== Description:== Weldolet to Elbow System ID: RC -------------------------------------------------------------- Component ID: 12050-WMKS-0109D / 14-RC-410 / 3 Size/Length: 1.25" / 44.0" Thickness/Diameter: 1.406" / 14.0" Limitations: Single sided due to weld-o-let.lSee attached Start Time: 1342 Finish Time: 1350 Instrument Settings Search Unit Cal. Time Date Axial Oriented Search Unit Serial No.: 140723807 I Serial No.: 06-109 Checks Initial Cal. Calibration Signal Sweep Sound Path Manufacturer: Olympus Manufacturer: RTD 1105 3/9/2019 Reflector Amplitude% Division Model: EPOCH 600 Linearity: L-19 -001 Size: 2(15X25) Model: TRL2-AUST Inter. Cal. 1342 3/9/2019 1.50" Notch 80 5.0 2.869 Delay: 10.211 Range: 5.700 Freq.: 2.0 MHZ Center Freq.: N/A Inter. Cal. N/A M't!CalNel: 0.2320 Pulser: Square Inter. Cal. 1350 3/9/2019 Exam Angle: 60 Squint Angle: NIA I Final Cal. 1604 3/9/2019 Damping: 400 Reject: 0 Measured Angle: 61 Mode: Longitudinal Freq.: I 2.0 Couplant Rep. Rate: Auto Exit Point .75

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2 Filter: 0.5-4.0 Mode: IFW -- Cal. Batch: 17F087 Circumferential Oriented Search Unit Config.: D-SBS Focus: FD.1.3" Voltage: 400 Other: IN/A Type: Sonotech Calibration Signal Sweep Shape: Retangular Contour: FLAT Reflector Amplitude% Division Sound Path Mfg.: Sonotech I Wedge Style: Integral NIA Ax.. Gain (dB): 54.0 Circ. Gain (dB): NIA Exam Batch: 17F087 I Search Unit Cable 10 Screen Div. = 5.70 in. of Sound Path Type: RG 174 Length: No. Conn.: 0 Type: Sonotech 6 Mfg.: Sonotech Calibration Block Scan Coverage Cal. Block No. 05-8514 Upstream~ Downstream D Scan dB: 60.0 Reference Block Reference/Simulator Block Thickness 2.25" Dia.: 01 Gain Signal Sweep Sound Path cw ccwo Scan dB: NIA Serial No.: 05-6533 dB Reflector Amplitude% Division Cal. Blk. Temp. 71 Temp. Tool: ATK~2 -- Type: SS Rompus Block Exam Surface: OD 48.0 FSDH 45 2.7 1.556 Comp. Temp. 86 Temp. Tool: ATK+2 Surface Condition: Ground Smooth Nb~ Recordable lndication(s): Yes 0 (If Yes, Ref. Attached Ultrasonic Indication Report.) Results: NRI ~ RI 0 Geom D Comments: None. Percent Of Coverage Obtained > 90%: Examiner Level Johnson, Jeffrey M. Examiner Level Zollner, Brian D Other NIA Level UT Calibration/Examination No Reviewed Previous Data: N/A Signature Date Reviewer 31912019 ~ L.-nfo ~ ~ Signature Signature

Supplemental Report Report No.: UT-19 -073 Dominion* Page: 4 of 5 Summary No.: N2.R1.11.314 Examiner: Johnson, Jeffrey M. Level: 11-PDI Reviewer: ~.==..:J.:::i.==..L..-~C:::!:.....:.::.= _ __.,;~ Examiner: Zollner, Brian D Level: 11-PDI Site Review:..ld.!.!::i:!::l~L!..£:?1E~~~--_£QlbC:::.._ Other: __ N_/A-'--------------- Level: NIA AN!I Review: -------""'--'--"-"'=::.;...----- Comments: Sketch or Photo: JS C/5 - l,'J.il.. Lt~ Toe-- t.~l'.1.. L,.* iel..,l (b. _ \\~lo\\ ~S *. ts i'oe - ,... rt<.," l,5 bS - I. L{oS.. J... s". b.5 - l. 3'l7.. w c......w - /,J5'0 Additional* Supplemental Data . '-....)c.l...c.\\- °' - \\...c..."'\\ ~-----.,r----.....:;**:..!.'---------- Date: 3 */D* Jj; Date: ~ f?--o/?<s,q_ Date: 3 /z.r/2,9 m

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Enclosure R1-1 Serial No.: 21-087 Docket No.: 50-339 Attachment Page 13 of 68 Report No: UT-19-073 Summary# N2.R1.11.314 Pg. 5 of 5 ~,-.t'li. Prepared by: W. Thomas~~ Date: 3/10/2019 Weld Number Thickness 3 1.283 11 Weld Width Weld Length 1.25" 44" FLOW 3

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WELOOLET \\ ELBOW EXAMINED 100% OF THE REQUIRED WLUME OS SIDE. EXAMINED 100% OF THE REQUIRED VOLUME US SIDE BEST EFFORT Examination Volume Dimensions - Height 0.428" Length 44" Width Coverage Summary Required Scans (each has a weighing factor of 100 for complete coverage) ANGLE UpSt-Ax UpSt-Circ DnSt-Ax DnSt-Clrc 45/ 60 0% 100% 100% 60L

100%

Code Coverage Total 100+ 100+ 100+0=300/ 400=. 75

Best Effort Coverage (Max 25%) Total Notes:

1) Code Coverage refers to the maximum percentage of the required examination volume that is effectively examined with the qualified examination procedure.

2) Best Effort Coverage refers to the required examination volume past the weld centerline that is examined in the axial beam direction with an Appendix VIII demonstrated procedure for single sided coverage.

2.25" 50% 25%

Enclosure R1-1 Liquid Penetrant Examination Sile/Unit: NAPS 2 Procedure: ER-AA-NDE-PT-300 Summary No.: N 2. R 1. 11. 314 Procedure Rev.: 7 Workscope: AUG Work Order No.: 59203136641 Code: 2004 Edition Cat./ltem: R-A/R1.11 Location: Serial No.: 21-087 Docket No.: 50-339 Attachment Page 14 of 68 Outage No.: __ N_2_R_2_6 __ Report No.: PT-19 -012 Page: 1 of 1 C-LOOP Drawing No.: 12050-WMKS-0109D

== Description:== WELDOLET-TO-ELBOW System ID: RC ss,11.,l/.l)(,/ Component ID: 12050-WMKS-0109D I 14-RC-410 I 3 Mat./Thiclmess: -4.4Qli".' 14u-

L-lm_1t_a1_1o_n_s:--=N;;o;;ne;;;;;;;;;;;;;;;;;;;;:;;;:;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:;~~ry.Jl1 Light Meter Mfg.:

NIA Serial No.: NIA Illumination: NIA Seri a I No.: ATK-2 Temp. Tool Mfg.: ____ _.;.A.;.;T.;..K::.:IN.;,;S;,..._ ___ _ Surface Temp.: __ s;;..;o __ °F Comparator Block Temp.: Side A: -1:llA_ °F Side B:......MA_ °F Resolution: 0.044" Character Card LolWo Location: TDC I Weld Center Line Surface Condition: Visible i;z] Cleaner Penetrant Fluorescent D Remover Brand MAGNAFLUX MAGNAFLUX MAGNAFLUX Type SKC*S SKL-SP2 SKC-S Batch No. 18C21K 15J02K 18C21K Time Evap. 3Mln Dwell 10Min Evap. 1 Min Time Exam Started: 2151 Time Exam Completed: Indication Loe Loe Diameter Length Type No. L w R/L NRI Comments: DOM"2016;0156**-

-~---*****

Flashlight used to resolve character card Results: NRI ~ RI 0 Percent Of Coverage Obtained > 90%: Examiner Level Flood, Steven Examiner Level NIA Signature N/A Other Level NIA Signature NIA liquid Penetrant Examination Eval D Yes N/A Reviewed Previous Data: Date Reviewer 3/8/2019 NIA Date Site Review 3/8/2019 Dennis Strickland Lv II Date ANII Review f\\) -{/ Ground Smooth Developer MAGNAFLUX Develop 2225 Remarks NIA Signature SKD-S2 14l<04K 10 Min Date Date 3/18/2019 Date

UT Calibration/Examination Dominion NAPS 2 Procedure: ER-AA-NDE-UT-802 Outage No.: N2R26 Site/Unit Summary No.: N2.R1.11.459 Procedure Rev.: 5 Report No.: UT-19-070 Workscope: ISi Work Order No.: 59203136641 Page: 1 of 8 Code: 2004 Edition CatJltem: R-AIR1.11 Location: A-LOOP Drawing No.: 12050-WMKS-q103AG

== Description:== Valve to Elbow System ID: RC -----------+------------------------------------------------ Component ID: 12050-WMKS-0103AG / 6-RC-416 I 3A Size/Length: 1.20" 121.0" Thickness/Diameter. 0.719" / 6.0" Limitations: Single Sided Start Time: 2010 Finish Time: 2032 Instrument Settings Search Unit Cal. Axial Oriented Search Unit Time Date Serial No.: 140723807 Serial No.: S10321 Checks Calibration Initial Cal. Signal Sweep Sound Path Manufacturer. Olympus Manufacturer: GE 1740 3/12/2019 Reflector Amplitude% Division Model: EPOCH600 Linearity: L-19-!)01 Size: .375" Model: Comp-G Inter. Cal. 2010 3/12/2019 1" Notch 80% 7.1 1.415" Delay: Range: 12..0* Inter. Cal. 2032 3/12/2019 4.900µs Freq.: 2..25MHZ Center Freq.: NIA Inter. Cal. Square NIA M't!CaWel: 0.1230 in/µs Pulser: Exam Angle: 45* Squint Angle: NIA Final Cal. 3112/2019 i 2351 Damping: 400!1 Reject ! 0% Measured Angle: 45° Mode: Shear !2..25 Couplant Rep. Rate: Auto Freq.: Exit Point 0.25"

of Elements: -

1-Cal. Batch: Follwave 17F087 Circumferential Oriented Search Unit Filter: 0.5-4.0 MHz Mode: Config.: Single Focus: NIA i Type: Sonotech Calibration Signal Sweep Voltage: 400 Other: !NIA Shape: Round Contour: Flat Reflector Amplitude% Division Sound Path Mfg.: Sonotech Wedge Style: MSWQC NIA I Exam Batch: i 17F087 /Joc Gain{dB}: 29 Circ. Gain (dB): NIA Search Unit Cable Type: Sonotech 1 Screen Div. = 0.20 in.of Sound Path Type: RG174 Length: 6' No. Conn.: 0 Mfg.: Sonotech Calibration Block Scan Coverage Upstream D Downstream lilJ Scan dB: 35 Reference Block Reference/Simulator Block Cal. Block No. 05-8514 I -- Serial No.: Gain Signal Sweep Sound Path Thickness 2.25" Dia.: 0 cw~ ccw~ Scan dB: 35 05-6533 dB Reflector Amplitude% Division ATK~ -- Type: SS Rompus Block Cal. Blk. Temp. 11* Temp. Tool: Exam Surface: OD 29.0 FSDH 80% 5.4 1.065" Comp.Temp. 59* Temp. Tool: ATK-~ Surface Condition: Ground Smooth Recordable Indication s : ( ) NRI lilJ Yesr-u RI 0 No,;;i If Yes Ref. Attached Ultrasonic Indication Re ort. ~ Geom p Results: Percent Of Coverage Obtained > 90%: Examiner Wertman, Justin Examiner Hacker, Jonathan Other N/A Leve! II.PD! Level 11-PDI Level N/A UT Calibration/Examination Reviewed Previous Data: Yes Date Reviewer 3/12/2019 vJL ~5 Date Site Review Comments: Examined per the requirements of MRP-146. CR 1118871 issued for coverage not greater than 90%. Date 3 *ZI* Date 311212019 'R.C*eis-reP1:tee WnA'1 L,.J[. Date ANII Review m s:?. 0 f/1 C '"'!I (I)

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UT Calibration/Examination I I Dominion I NAP~ 2 Procedure: ER-AA-NDE-UT-802 Outage No.: N2R26 Site/Unit Summary No.: N2.R1.11.459 Procedure Rev.: 5 Report No.: UT-19 -070 Workscope: ISi Work Order No.: 59203136641 Page: 2 of 8 Code: 2004 Edition CatJltem: R-A/R1.11 Location: A-LOOP Drawing No.: 12050-WMKS~103AG

== Description:== Valve to Elbow System ID: RC -----------:-------------------------------------------------- Component ID: 12050-WMKS-0103AG / 6-RC-416 I 3A Size/Length: 1.20" / 21.0" Thickness/Diameter: 0.719" / 6.0" Limitations: Single Sided Start Time: 2032 Finish Time: 2042 Instrument Settings i Search Unit Cal. Axial Oriented Search Unit I Time Date Serial No.: 140723507 Serial No.: SI0328 Checks I Initial Cal. Calibration Signal Sweep Sound Path Manufacturer: Olympus Manufacturer: GE 1742 3/12/2019 Reflector Amplitude% Division I Model:' EPOCH 600 Linearity: L-19..()03 Size: .375" Model: Comp-G Inter. Cal. 2032 3/12/2019 1" Notch 80% 6.3 1.816" Delay: 5.600 µs Range: f875" Freq.: 2.25 MHZ Center Freq.: NIA Inter. Cal. 2042 3/12/2019 M'tlCalNel: 0.1230 in/µs Pulser: ~quare Inter. Cal. N/A Exam Angle: so* Squint Angle: N/A lo3/4 Final Cal. 2353 3/12/2019 Damping: 4000 Reject: Measured Angle: 59° Mode: Shear 12.25 Couplant Rep. Rate: Auto Freq.: Exit Point 0.30"

of Elements:

1 Filter: 0.5-4.0 MHz Mode: Fullwave -- Cal. Batch: 17F087 Circumferential Oriented Search Unit Config.: Single Focus: N/A Voltage: 400 Other: !NIA Type: Sonotech Calibration Signal Sweep Shape: Round Contour: Flat Reflector Amplitude% Division Sound Path I Mfg.: Sonotech ! N/A Wedge Style: MSWQC N/A k<. Gain {dB): 30 Circ. Gain (dB): Exam Batch: 17F087 I Search Unit Cable 10 Screen Div.= 2.875 in. of Sound fath Type: Length: No. Conn.: Type: Sonotech RG174 6' 0 l Mfg.: Sonotech Calibration Block I Scan Coverage Cal. Block No. 05-8514 Upstream O Downstream~ Scan dB: 36 Reference Block Reference/Simulator Block Thickness 2.25" Dia.: o I Gain Signal Sweep Sound Path CWw! CCW ~ Scan dB: 36 Serial No.: 05-6533 dB Reflector Amplitude% Division Cal. Blk. Temp. 71° Temp. Tool: ATK-i:2 -- Type: SS Rompus Block Exam Surface: OD 30 FSDH 87% 5.1 1.477" Comp. Temp. 69° Temp. Tool: ATK~~ Surface Condition: Ground Smooth Recordable lndication(s): Yes 0 No~ (If Yes, Ref. Attached Ultrasonic Indication Report.) Results: NRI ~ RI 0 I I Geom O Comments: Effective coverage using the 60° search unit has been verified by the presence of the weld root response during the required scans. Percent Of Coverage Obtained > 90%: Examiner Level Wertman, Justin Examiner Hacker, Jonathan Other N/A Level 11-PD Level N/A UT Calibration/Examination No Reviewed Previous Data: Yes Date Reviewer 31121201s W.L _,g'~ Date Site Review 3/12/2019 'R. c~ic.l$-n:>~l-l-e:e W\\'2-1','f L.1-.Ii[ Date ANII Review Date 3*-Z.1*2 Date '3* 22. *J '1 m

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UT Calibration/Examination Dominion Site/Unit: NAP~ 2 Procedure: ER-AA-NDE-UT-802 Outage No.: N2R26 Summary No.: N2.R1.11.459 Procedure Rev.: 5 Report No.: UT-19 -070 Workscope: ISi Worl< Order No.: 59203136641 Page: 3 of 8 Code: 2004 Edition CatJltem: R-A/R1.11 Location: A-LOOP Drawing No.: 12050-WMKS-tj103AG

== Description:== Valve to Elbow System ID: RC ------------,----------------------------------------------------- Component ID: 12050-WMKS-0103AG / 6-RC-416 / 3A Size/Length: 1.20" / 21.0" Thickness/Diameter: 0.719" I 6.0" Limitations: Single sided Start Time: 2042 Finish Time: 2102 Instrument Settings I Search Unit I Cal. Axial Oriented Search Unit I Time Date Serial No.: 140723507 Serial No.: 06-108 Checks Calibration Initial Cal. Signal Sweep Sound Path Manufacturer: Olympus Manufacturer: RID 1745 3/12/2019 Reflector Amplitude% Division Model: EPOCH 600 Linearity: L-19 -003 Size: 2(8X14) Model: TRL2-AUST Inter. Cal. 2042 3/12/2019 1"Notch 80% 6.8 1.944" Delay: 9.1000 Range: 2.875" Freq.: 2.0 MHZ Center Freq.: N/A Inter. Cal. 2102 3/12/2019 M'tlCalNel: 0.2298 Pulser: Square Inter. Cal. NIA Exam Angle: so* Squint Angle: N/A !0% Final Cal. 2355 3/12/2019 Damping: 400 Reject Measured Angle: so* Mode: Longitudinal Rep. Rate: Auto Freq.: i 2.0 Exit Point Couplant 0.30

of Elements:

2 Filter: 0.5-4.0 Mode: FJllwave -- Cal. Batch: 17F087 Circumferential Oriented Search Unit Config.: D-SBS Focus: FD.0.6" Voltage: 400 Other: !NIA Type: Sonotech Calibration Signal Sweep Shape: Retangular Contour: FLAT Reflector Amplitude% Division Sound Path I Mfg.: Sonotech I Wedge Style: Integral N/A Ax. Gain (dB): 48 Circ. Gain (dB): I NIA Search Unit Cable Exam Batch: 17F087 I 1 Screen Div. =.2875 in. of Sound fath Type: RG174 Length: 6' No. Conn.: 0 Type: Sonotech Mfg.: Sonotech Calibration Block I Scan Coverage Cal. Block No. 05-8514 Upstream~ Downstream O Scan dB: 54 Reference Block Reference/Simulator Block Thickness 2.25" Dia.: 01 Gain Signal Sweep Sound Path cwo CCW O Scan dB: NIA Serial No.: 05-6533 dB Reflector Amplitude% Division Cal. Blk. Temp. 71° Temp. Tool: ATK-1 -- Type: SS Rompus Block Exam Surface: OD 42 FSDH 80% 4.9 1.408" Comp. Temp. 69° Temp. Tool: ATK~2 Surface Condition: Ground Smooth Recordable lndication(s): Yes~ N? D (If Yes, Ref. Attached Ultrasonic Indication Report.) Results: NRI D RID Geom~ Comments: Utilized for far side coverage and geometric indication plot. Percent Of Coverage Obtained > 90%: Examiner Wertman, Justin Examiner Hacker, Jonathan Other N/A Level II-POI Level II-POI Level N/A UT Calibration/Examination No Reviewed Previous Data: Reviewer Site Review R. C.-.e,s,0~1+1;.c:i WaA"I ANII Review m

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UT Calibration/Examination Site/Unit: NAPS 2 Procedure: ER-AA-NDE-UT-802 Outage No.: N2R26 Summary No.: N2.R1.11.459 Procedure Rev.: 5 Report No.: UT-19 -070 ---~----------- Works cope: ISi Work Order No.: 59203136641 Page: 4 of 8 Code: 2004 Edition Cat./ltem: R-A/R1.11 Location: A-LOOP Drawing No.: 12050-WMKS-Q103AG

== Description:== Valve to Elbow System ID: RC -------------------------------------------------------------- Component ID: 12050-WMKS-0103AG / 6-RC-416 / 3A Size/Length: 1.20" / 21.0" Thickness/Diameter: 0.719" / 6.0" Limitations: Indication discrimination only i Start Time: 2103 Finish Time: 2107 Instrument Settings Search Unit Cal. Axial Oriented Search Unit Time Date Serial No.: 140723507 Serial No.: SI0331 Checks I Initial Cal. Calibration Signal Sweep Sound Path Manufacturer: Olympus Manufacturer: GE 1747 3/12/2019 Reflector Amplitude% Division Model: EPOCH 600 Linearity: L-19 -!)13 Size: .375" Model: Comp-G Inter. Cal. 2103 3/12/2019 1" Notch 80% 6.2 2.631" Delay: 7.900 JJS Range: ~.20" Freq.: 2.25MHZ Center Freq.: N/A Inter. Cal. NIA M'tl CalNel: 0.1230 in/µs Pulser: ~quare Inter. Cal. 2107 3/12/2019 Exam Angle: 70° Squint Angle: N/A lo3/4 Final Cal. 2357 3/12/2019 Damping: 4000 Reject: Measured Angle: 70° Mode: Shear 12.25 Couplant Rep. Rate: Auto Freq.: Exit Point 0.35"

of Elements:

1 Filter: Mode: I -- Cal. Batch: 17F087 Circumferential Oriented Search Unit 0.5-4.0 MHz F4llwave Config.: Single Focus: N/A Voltage: 400 Other: !NIA Type: Sonotech Calibration Signal Sweep Shape: Round Contour: Flat Reflector Amplitude% Division Sound Path I Mfg.: Sonotech I Wedge Style: MSWQC i N/A N/A Ax. Gain (dB): 38 Circ. Gain (dB): Search Unit Cable Exam Batch: 17F087 1 Screen Div. = 0.42 in. of Sound Path Type: RG174 Length: 6' No. Conn.: 0 Type: Sonotech I Mfg.: Sonotech Calibration Block Scan Coverage Cal. Block No. 05-8514 Upstream~ Downstream D Scan dB: 40 Reference Block Reference/Simulator Block Thickness 2.25" Dia: o I Gain Signal Sweep Sound Path cw CCW O Scan dB: N/A Serial No.: 05-6533 dB Reflector Amplitude% Division Cal. Blk. Temp. 71° Temp. Tool: ATK~ -- Type: SS Rompus Block Exam Surface: OD 26.0 NSDH 56% 2.2 0.924 ATK-~ Comp. Temp. 69° Temp. Tool: Surface Condition: Ground Smooth Nb~ Recordable lndlcation(s): Yes D (If Yes, Ref. Attached Ultrasonic Indication Report.) Results: NRI r.,J RI n - i Geom D Comments: Used for indication discrimation Percent Of Coverage Obtained > go%: Examiner Wertman, Justin Examiner Hacker, Jonathan Other N/A Level 11-PDI Level 11-PDI Level N/A UT Calibration/Examination i NIA Reviewed Previous Data: Yes Date Reviewer 311212019 w. L-ri::fo,,,,.A.s Date Site Review 311212019 Q. Cn-iu sTi Date ANII Review t--ev ;:tJr.. Date Date m ~ 0 C ""I (1)

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Enclosure R1-2 Serial No.: 21-087 Docket No.: 50-339 Attachment Page 19 of 68 Supplemental Report Summary No.: N2.R1.11.459

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E x amine r: Wertman, Justin Level: JI-PDI Examiner: Hacker, Jonathan Level: II-POI Other: NIA Level: NIA Comments: Sketch or Photo: Report No.: UT-19 -070 Page: 5 of 8 t,e,,J,1iC Reviewer; w.c....:m::~AS ;::::;,t:: Site Review: 'i<.C!ltM~VllEI? \\.)(411:zv.,m: )?C.W ANII Review: ~ ---e, Dale: 3 *'LI* l'l' Date: '1* 2.2.

l'i Date: _y,;;v-/2,,P WCW= I: 10

CIRC:: ']J0 11 .e::::J V-JA II I f;L60\\.v' VALVE O,Vfl1 Additional

Supplemental Data

Enclosure R1-2 Serial No.: 21-087 Docket No.: 50-339 Attachment Page 20 of 68 Supplemental Report Report No.: UT-19 -070 Page: 6 of 8 Summary No.: N2.R1.11.459

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E x amine r: Wertman, Justin Level: 11-PDI ";\\}.:JJr;. Reviewer: t,.J.t..:-ufo~A.'.5 ~ Date: "S*Z.1* t'f Examiner: Hacker, Jonathan Level: 11-PDI Other: NIA Level: NIA Site Review: 1<.Cr1rusroq~zlv.,!![ 6?1:W Date: 3*2.2*l'J ANII Review: e Date:,3,/2s;fp Comments: Sketch or Photo:

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l I 2 1 0 2 FLOW t -W3A 60L EL VALVE INDICATION 1 Additional

Supplemental Data

Enclosure R1-2 Serial No.: 21-087 Docket No.: 50-339 Attachment Page 21 of 68 Report No: UT-19-070 Summary# N2.R1.11.459 Pg. 7 of 8

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Prepared by: W. Thomas Weld Number Thickness ,v 3A 0,887" Date: 3/21/2019 Weld Width Weld Length 1.20" 21" Q1...._ ____ -el __ .__1 _ l __,_ __ -'--1----'------'-'--~---' 2 1 0 1 2 FLOW EL VALVE EXAMINED 100% OF THE REQUIRED VOLUME EL SIDE ~:?~:?nlExAMINED 100% OF THE RQUJRED VOLUME VALVE SIDE AX DIR. BEST EFFORT Examination Volume Dimensions - Height 0.296" Length 21" Width 2.2" Coverage Summary Required Scans (each has a weighing factor of 100 for complete coverage)! ANGLE UpSt-Ax UpSt-Circ DnSt-Ax DnSt-Circ 45/60 0% 100% 100% 60L 100% Code Coverage Total I 50% 100+100+100+0=300/400=.75

Best Effort Coverage (Max 25%) Total I

25% Notes:

1) Code Coverage refers to the maximum percentage of the required examination volume that Is effectively examined with the qualified examination procedure.

2) Best Effort Coverage refers to the required examination volume past the weld centerline that is examined In the axial beam direction with an Appendix VIII demonstrated procedure for single sided coverage.

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Ultrasonic Indication Report m ~ Dominion £. Site/Unit NAPS 2 Procedure: ER-AA-NDE-UT-802 Outage No.: N2R26 0 t.fl Summary No.: N2.R1.11.459 Procedure Rev.: 5 Report No.: UT-19-070 C.., (I) Workscope: ISi Work Order No.: 59203136641 Page: 8 of 8

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..i. I Wo wl"llaX I\\) Search Unit Angle: soRL 0 @ Piping Welds Ct Wo Location: TDC 0 Ferritic Vessels ~ 2"T I Lo Location: ell. 0 Other i ""':Aill1\\ol -ri RBR Remaining Back Reflectjon W1 Distance From Wo At Of Max (Forward) Lo L Distance From Datum ' W2 Distance From Wo At Of Max (Backward) i Jjl Comments: -Je:R.tF'fr:d:> e,~ p~. h i ~ VJ; MP Metal Path Wmax Distance From Wo To S U At Maximum Response Indication 'W Forward Backward L1 L L2 RBR Remarks Angle No. Of I Max Of Max Of Max Of Max Of Amp. DAG W! MP W1 MP W2 MP Max Max 60RL 1 109 -0.4! 1.862 17.3 0.8 3.5 Valve ID geometry i ' i i ' p-Examiner Level 11-PDI Date Reviewer Ull;!JT ~Ure Date Wertman, Justin re :P' 3/12/2019 w!.. :-Tuo/11,..>, !". 3*2.l*L'l Examiner Level 11-PDI Date Site Review Signature iill, Date Hacker, Jonathan I 3/12/2019 'i,2. Ctt~\\ s To"rtE:2. w~fl-Y L.r.J:C ~- (:,,. [J.;.,/1"" 3*2.2.*l"'j Other Level NIA , !Signature Date ANII Review ~ature I / {) Date NIA /W ?/2J7/y Additional - UT Indication Data <Edit From1Setup>

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Enclosure R1 -3 2.1.,0~ Supplemental Report F\\/**l ijj/l*I nrm lj.p[)I NIA I o,qoo Serial No.: 21-087 Docket No.: 50-339 Attachment Page 26 of 68 I 11 ( o.qfO

Enclosure R1-3 Dominion** Hi*tHll I No: l ll-1.~l nr,11 ~llflllll,IIY 1/ Nl,h'l 11 Jl!il Pg. ul 1, l'111pmNI by: W. 1 ho111,1*, I 1,111,: ]/ )IJ//0.l 'J Serial No.: 21-087 Docket No.: 50-339 Attachment Page 27 of 68 Wi*ltl Numht11 l I 1h:kIH !',~ Wel,1 Widl Ii W1 1 lrll 1111ilh L1" Jl,I" 0 II 0\\Y J () l 'I ,J EXAMINED IOO~ or lllE REOUIIU:D VOLUMl IU.IOVI SIDI:, I. j [XAfAIN[D 10<.>>1 01 1111 m.aumrn VOLUME VAi.Vi SIOF AX om. BLST nrorn Covl'rngl' ':iumroary --*-,{*;;quired;~:;,;~ (;aa1 h,is <I Wt?ighlng ractor of iTm for~~)lllpll.'lt' COVN11ge). Cmfo CrJVNilftl' Total 1001100101100~300/400,.7s Notes: I) Ct)dt*' ('nvm;igll 1t!IP1'., tu lhP 1n11xlr11um pommtill!,ll o! 1h11 rrqulrr1d m1,1n1111ollon 11ol111m* th,1t I'. 11ffot.l1Vt)ly l'Mtlflllt11ld W*lh till' q11,1hl1t*d ex,ir11iru1tlon proc:l'd11n,.

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Hartford Stoarn l31*Mer l:lb31 Hf~ '//*. / 'I ' ** :.J /// _d,mooS<rnte! P!~rn""" '"'-~",tded '"""'~!!_.. ')?. cl# tj Lv.:ur 3

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Serial No.: 21-087 Docket No.: 50-339 Attachment Page 28 of 68 R2. Risk-Informed Piping Welds Subject to lntergranular or Transgranular Stress Corrosion Cracking (IGSCC or TGSCC) 4.R2 IMPRACTICALITY OF COMPLIANCE In accordance with 10 CFR 50.55a(g)(5)(iii), relief is requested from the "essentially 100 percent" volumetric examination coverage requirement for the identified piping welds. This requirement is considered impractical primarily due to single-sided access for these components. Weld Line No. Scan Enclosure Exam1 Exam Angle Mode Frequency Coverage Date (%)2 (degree) (MHz) Up/CW/CCW 45 Shear 1.5 50% Up/CW/CCW 60 Shear 1.5 10 6"-Sl-416 R2-1 3/21/2019 + 3.6% BE Own 60 Longitudinal 2.0 Up/CW/CCW 45 Shear 1.5 50% Up/CW/CCW 60 Shear 1.5 19 6"-RC-532 R2-2 3/21/2019 + 25% BE Own 60 Longitudinal 2.0 Up/CW/CCW 45 Shear 1.5 50% Own 60 Longitudinal 2.0 8 12"-Sl-469 R2-3 3/13/2019 + 14.75% BE NOTES: 1 Up Axial scan on the upstream side of weld Own Axial scan on the downstream side of weld CW Circumferential scan in the clockwise direction CCW Circumferential scan in the counterclockwise direction 2 BE Best Effort non-Code coverage used to gain additional information These examinations were performed manually using advanced ASME Section XI, Appendix VIII demonstrated procedures and techniques in accordance with the performance demonstration requirements. Based on access and physical limitations of theses welds, alternative or other advanced technologies would not have provided complete coverage of the examination volume at the time of th is examination. The attached enclosures include the complete Ultrasonic Examination Data Record for the Category R-A, Item R1.16, examinations included in this request. The report includes

Serial No.: 21-087 Docket No.: 50-339 Attachment Page 29 of 68 details of the UT scanning apparatus, including transducer size, frequency, angle, wave modality and insonification angles. Also included are scan plots for the examinations showing the piping configuration and percent coverage for each individual scan. There were no recordable indications identified for these examinations. Weld 10 (6"-Sl-416) was a single-sided examination due to the pipe-to-valve configuration, limiting downstream scans. Weld 10 is considered a R1.16 element subject to IGSCC as the most likely degradation mechanism. The weld is on the upstream side of Low Head SI check valve, 2-Sl-125, in the safety injection pipe to RCS hot leg (29"- RC-407). An additional "Best Effort" (non-Code) scan with a 60-degree Longitudinal search unit obtained an additional 3.6 percent total coverage of the downstream side of the weld. Weld 10 in Line# 6"-Sl-416, is 1,500 lb., Type 316 seamless stainless-steel piping, with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 1 N316L procured with 8-20 FN delta ferrite and 75 ksi minimum tensile strength. Weld 19 (6"-RC-532) was a single-sided examination due to the pipe-to-valve configuration, limiting downstream scans. Weld 19 is considered a R1.16 element subject to IGSCC as the most likely degradation mechanism. The weld is on the upstream side of Low Head SI check valve, 2-Sl-106, in the safety injection pipe to the RCS cold leg (27.5"-RC-409). An additional "Best Effort" (non-Code) scan with a 60-degree Longitudinal search unit obtained an additional 25 percent total coverage of the downstream side of the weld. Weld 19 in Line# 6"-Sl-532, is 1,500 lb., Type 316 seamless stainless-steel piping, with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 1 N316L procured with 8-20 FN delta ferrite and 75 ksi minimum tensile strength. Weld 8 (12"-Sl-469) was a single-sided examination due to the elbow-to-valve configuration, limiting downstream scans. Weld 8 is considered a R1.16 element subject to IGSCC as the most likely degradation mechanism. The weld is on the upstream side of Low Head SI check valve, 2-Sl-187, in the safety injection pipe to the RCS cold leg (27.5"-RC-409). An additional "Best Effort" (non-Code) scan with a 60-degree Longitudinal search unit obtained an additional 14.75 percent total coverage of the downstream side of the weld. Weld 8 in Line# 6"-Sl-416, is 1,500 lb., Type 316 seamless stainless-steel piping, with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 1 N316L procured with 8-20 FN delta ferrite and 75 ksi min tensile strength. Similar relief was granted for NAPS1 weld 12 (6"-Sl-133), 50 percent coverage, during the Fourth Interval [Reference 8]. Relief was granted for three similar welds for the NAPS2 Third Interval [Reference 5].

5.R2 BURDEN CAUSED BY COMPLIANCE Serial No.: 21-087 Docket No.: 50-339 Attachment Page 30 of 68 The purpose of NOE is to perform inspections without destroying the component. The physical configuration of this weld, pipe-to-valve and elbow-to-valve connections, confines inspection capabilities. Detailed sketches of the limitations and inspection areas achieved have been provided. No further actions can enable better examination coverage. 6.R2 PROPOSED RELIEF AND BASIS It is proposed that the examinations already completed at the reduced coverage be acceptable for meeting the Code requirements. All welds in these groups of High Safety Significant areas are pipe-to-valve welds and inspection would result in similar limitations. Therefore, no alternative selections are available to meet greater than 90 percent coverage. The limited volumetric examination should detect any general patterns of degradation that may occur in the areas covered, therefore providing reasonable assurance of the continued structural integrity of the subject weld. A portion of each of the subject welds was examined volumetrically. In addition, these welds receive a visual examination during the system leakage test. Any pattern of degradation should be detected by this examination ensuring reasonable assurance of operational readiness.

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Serial No.: 21-087 Docket No.: 50-339 Attachment Page 44 of 68 R3. Risk-Informed Piping Welds Not Subject to a Degradation Mechanism 4.R3 IMPRACTICALITY OF COMPLIANCE In accordance with 10 CFR 50.55a(g)(5)(iii), relief is requested from the "essentially 100 percent" volumetric examination coverage requirement for the piping welds identified below. This requirement is considered impractical primarily due to single-sided access and configuration of these components. Wela Line No. Scan Enclosure Exam1 Exam Angle Mode Frequency Coverage Date (%) (degree) (MHz) Up/CW/CCW 45 Shear 2.25 CW/CCW 60 Shear 2.25 SW-60W (BPL 473) 6"-WFPD-419 75% R3-1 9/17/2020 Own 70 Shear 2.25 Up/CW/CCW 45 Shear 2.25 Up/CW/CCW 60 Shear 2.25 SW-8 (BPL 116) 32"-SHP-457 75% R3-2 9/17/2020 Up 70 Shear 2.25 Up/CW/CCW 45 Shear 2.25 Up/CW/CCW 60 Shear 2.25 SW-7 (BPL 209) 32"-SHP-458 75% R3-3 9/17/2020 Up 70 Shear 2.25 NOTES: 1 Up Axial scan on the upstream side of weld Own Axial scan on the downstream side of weld CW Circumferential scan in the clockwise direction CCW Circumferential scan in the counterclockwise direction The above examinations were performed manually using advanced ASME Section XI, Appendix VIII demonstrated procedures and techniques in accordance with the performance demonstration requirements. Based on the access and physical limitations of these welds, alternative or other advanced technologies would not have provided complete coverage of the examination volume at the time of these examinations. Enclosures R3-1 through R3-3 include the complete Ultrasonic Examination Data Records for each Category R-A, Item R1.20, examination included in this relief request. Each report includes details of the UT scanning apparatus, including transducer size, frequency, angle, wave modality and insonification angles. Also included are scan plots

Serial No.: 21-087 Docket No.: 50-339 Attachment Page 45 of 68 for each of the examinations showing the piping configuration and percent coverage for each individual scan. No recordable indications were identified for any of these examinations other than geometry indications at the bore of welds SW-60W and SW-7. Weld SW-60W (BPL 473) (6"-WFPD-419) is a Main Feedwater Isolation Valve Bypass piping weld. The 6-inch and 16-inch piping it connects to is carbon steel, A-106 GR B seamless pipe, and the weldolet are A-105 SCH 80. The limitations are due to the single-sided exam of the pipe-to-weldolet configuration of this weld. Only geometry indications were identified from the inside diameter (ID) bore due to the branch configuration (see attached report R3-1 for details). The weld is non-class included as a high safety significant, break exclusion region, RIS_B location requiring greater than 90 percent coverage per request N1-I4-Rl-001 [Reference 3], and as such is included in this request. Augmented magnetic particle examination was also performed at this location with no reportable indications identified. Welds SW-8 (BPL 116) (32"-SHP-457) and SW-7 (BPL 209) (32"-SHP-458) are Main Steam (MS) piping from Containment to the MS header welds. The configuration is mitered shop welds from 32-inch piping to the horizontal 40-inch MS header. The 32-inch piping is carbon steel, A155EFW, CLI, CMS 75, and the 40-inch header is carbon steel, A 155EFW, CU, KC 70. Full coverage was obtained at the tops and bottoms of the welds, but limitations were at the sides where the angle between the pipe and the header is at right angles. Weld SW-7 had intermittent 360-degree indications recorded using the 70-degree search unit from ID geometry signals from bore (see attached report R3-3 for details). These welds are non-class welds included as high safety significant, break exclusion region, RIS_B locations requiring greater than 90 percent coverage per request N1-I4-Rl-001 [Reference 3], and as such are included in this request. Augmented magnetic particle examinations were also performed at these locations with no reportable indications identified. The NAPS1 RI-ISi Program is based on ASME Code Case N-716 as identified in approved request N1-I4-Rl-001 [Reference 3]. The subject limitations have been evaluated as acceptable, with no impact on risk analysis, and no further actions necessary to provide reasonable assurance of pressure boundary leak tightness. 5.R3 BURDEN CAUSED BY COMPLIANCE The physical configuration of these welds, weldolet-to-pipe and pipe-to-header, confines inspection capabilities. Detailed sketches of the limitations and inspection areas achieved have been provided. No further action can be taken to enable better examination coverage without destroying the component.

6.R3 PROPOSED ALTERNATIVE AND BASIS Serial No.: 21-087 Docket No.: 50-339 Attachment Page 46 of 68 These welds were selected as they are determined to be of High Safety Significance with no specific active degradation mechanisms. Selections were made based on plant specific operating experience or history of examination, weld repairs, random selection across different pipe sizes and configurations, and radiation concerns. Inspection of these particular welds are considered the best choice for meaningful examination results. It is proposed that the examinations already completed at the reduced coverage be accepted for meeting the Code requirements. 100 percent of the welds were volumetrically examined from the accessible side. No indications were discovered other than the geometry indications. The limited volumetric examinations performed should detect any general patterns of degradation that may occur in the areas covered, therefore providing reasonable assurance of the continued structural integrity of the subject weld. As a result of the completed examinations, any pattern of degradation should be detected, thereby providing reasonable assurance of operational readiness. The purpose of the ISi program is to assure the structural and pressure-retaining integrity of safety-related nuclear power plant components in accordance with the rules of the ASME Code, Section XI and the requirements of 10 CFR 50.55a. Although only weld locations where greater than 90 percent examination coverage is possible (when available based on selection criteria) could be selected, meeting the purpose of the Code requires selecting a mix of not only piping-to-piping welds (where essentially 100 percent coverage is more likely), but also piping-to-valve welds, piping-to-pump welds, piping-to-vessel welds, socket welds, nozzle-to-pipe welds, etc. The ASME Code allows only 50 percent Code coverage for single-sided examinations. In cases other than most piping-to-piping welds the majority of weld examinations are considered single-sided examinations. The risk-informed weld limitations are considered in ASME Code Case N-716 periodic updates to the Risk-Informed Program Plan, where the program is reevaluated to determine if any changes to the examination selections need to be made, including additional examinations if they are warranted. The limited examinations identified in this request have no impact on the change-in-risk evaluation for the third period, and no new examinations were added as a result of these limitations.

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Enclosure R3-1 ""*~V'r.c"lrv No N2.RU0.0015 Sauter, Nathaniel A t=6 5 Supplemental Report /0 Serial No.: 21-087 Docket No.: 50-339 Attachment Page 50 of 68 UT,20 -010 4 of 6

Enclosure R3-1 SW60';;W R1*rHHL Nn: urwoio summ¥y It N2 HU0.0015 P1?, 5 of Ci Pn*rinrNI by: w. l Date: 9/2S/2020 1" Serial No.: 21-087 Docket No.: 50-339 Attachment Page 51 of 68 Weld Number 1 hkkm0 ~s 0,9" Weld Width Wnld 1.ength 27.I ANGlf 45/60/70 '" " ""',.: ::; :~",,,.:1J, - 1 .. 4;..... U,90 In I Ill C1Wl"f,1f',O Summary l,'11.l tn -1 L,,nr.th I I n.1" Width Hequlred Scan~ (c*;1d1 ha~,, wei11hlng factor ol 100 for rnmplNr coverage) I UpSt AK UpSL Cln DnSI Ax IJnSt-Clrc 100% 100% 100'71', 0% Codi:, Covcir age lolal I 1 oo+ 1001 mo, 0,,300/4= 75

!Inst llforl Covetil&e (Milli 25%) Total I

Notes; 11 Codu Ctwmage 1elers lo the rm1~imt.m1 peffs't1l,1g,, ol ttm n,quhi"d e~arnloali,m vnl11m11 thJt 1~ e!li:tlivr*lv m1.,m1lm,d with tlm qll,1ll!!l!d 11KJ11tlr1Jtion prorndurn J) l:ll!~I I !furl Co\\ltlf.tgl'! rnl!'r;. lu the 1equltrd l'xr1mh1iltlt11111uh.1mu pas I th1, weld rn111,,,!lne that h exntnltwd In \\lw li:,,:l,,I bt1,im diltitth.m with t1n Apw,ndlll VIII demorul!,11(:d pror:i,dmu Im tlngle ~lded t0\\ler,1ge. 7So/u N/A

Ultrasonic Indication Report NAPS Site*\\Jp1t Summ.:trv No. N2,R1.20.0015 10 '.'v',:; Wold Contor Uno local!*:in* US Side Main Run

MP Meral Path RBR i::,d'""""""' Back ReflP.ctu:>n DIS\\ence i=rom Daturn ISi 2

Dts,rnnce Fron1 'No D111,tanoJ From 'No M ER*AA*NDE-UT-601 59203276663 Of Max Mn Rooort No N2R27 UT-20 -010

us Side Main Run ( ~idll CIOHlltl to 2-FW-50-VALV}

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,

: -;-rv;,1anj 61r.:Jsw11 L,;:

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Enclosure R3-1 Magnetic Particle Examination 2 S+Jftl(f1;'Hy No

H2 AUG 2004 Edition CHlllfom 12050-WMKS.O 1020 ID WFPO U l, 12:0SO-WMKS-01020 I 6-WFP0-4191 SW*GOW (BPL 473)

NIA NIA Magmttk: Parlicl~ M11terlal MAGNAFLUX SA Rod t8G065 PARKER fq,,ipm<'nl. Hi+s.d r l --****--N_I_A ____ AHlt*lJh':;c, 3*8 NIA .,.~.,..... Lrn: ll+Jtn eo!t.*1 l l'HiJO! H1 I y._, NlA flnhllght Us&d Chao1cter Card SN:OOM-20f6.0118 Wr,t f l Ory~* J.,,; f, hloht""-.e,HI ! i NIA NIA NIA NIA Serial No.: 21-087 Docket No.: 50-339 Attachment Page 53 of 68 N2R27 MT-20..(107 CS/0.Sur NIA ! l l 1an~ NIA

UT Calibration/Examination ~ l_,,.,.,;,r,t $m:ti'n!J$ 01X'i<Jlll ~e~:!'i, Fuha'!R: St.n,gl~ i,. -- \\,....,.- llll

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6'" ~ 5l!t101!11"53 $~'6,~£:t"\\i"!:?", o:;"': SQ">Of itd'r ~~,:E::.'!::Ct"- ~ce!:~1~1' ltA Sonc-e.'"t ~il"llltf"On p4,rfi:,,m,;~ i:;,;,ncun-ontly *wi;:h ~l'>Cl!!nt w,,id 5:W.7 m (') 0 u, C.... (I) ~ I N

UT Calibration/Examination NAPS 2 ,.,"'C>cc,rm,r,i E'Fl*A.PvN.tlE*UT,lll7/1 ,a Ri,;u:u1on ISi d::01,c~~r" - flil!O*WMKSs-0101A r 32* *SNl>.t!li r ::!iW,11 Su,rgll!Mic!lllKI 0111m du,i !!l ctOflllG<rtiiU~r, N2R:2l m

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!9101!l195Sl 11:l S,,n~n '\\:**

SHP ATT" ~ 7 -

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l:t05!1-WM!G,-0Hl1A--I 32'.SHP...A.57 i' sw.a (B.FL '16) !nstrum<<nt S<<ting,i; OtXKOl cJ:'ltillrT'y ___ L_-2_0_-0_0_3 __ _ ~-;.,;J-secr : tP-e: __ S_*ci_v_*_rf'_*_ Ro,i~::::: ___ o_3/4_. __ (L71

SW F<'l-;:

2.25 MHZ c;~~fy, Fullwav~

=.,:.e m Calibnrt[on B!c~i< Hll!71 ti;ar:ui:a::tw:r:e,: S,,\\Wt:h U!'trt OOFU:lF KBA Comp.G WA NJA Shear E;,j- ;::0,,-C: (l.,U\\w Singl" WA ,::;,::,-,fo;:. Singl'< F;:;!1.::S. _____ _ Sr,ap:!-'~. Round

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Enclosure R3-2 Surnt11,,1y lfo Serial No.: 21-087 Docket No.: 50-339 Attachment Page 57 of 68 Supplemental Report I trvftl IH>[)f

';!l,, H1tVIHW '-'"'-'""-~,----~,-~---~-

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Enclosure R3-2 ,Dominion Notes: V.'!*ld Width Weld Serial No.: 21-087 Docket No.: 50-339 Attachment Page 58 of 68

Enclosure R3-2 Serial No.: 21-087 Docket No.: 50-339 Attachment Page 59 of 68 Magnetic Particle Examination Domln!on Si!tdUn I; NAPS 2 $um,rnmy l,u.. ___ N_2._R_1_.2_0_.0_0_1_7 __ AUG Procedure; Pmcoduru R;:iv.: ER*AA*NDE-MT-200 Out.ago No : t~2R27 a R<JfJ".Jrl No: __ M_T_*2_0_. -0_04 __ 59101919553 of codo: 2004 Edition Ca! /110111 R*AIR1.20 Lor.,atl1111 TB 12050-WMKS..0101A-4 lms*.:ripllon: Main Steam (BPL) SY1,l*,11t Ill: SHP CtYfl['Ofl()r,1 ID: 12050-WMKS.0101A-4 / 32'*SHP-457 / SW-B (BPL 116) CS/1.195"' L!mltilUrnn,: Nono Light Mu!m Mfg, TP.mp. Toni Mlg: NIA NJA 8'Jtial No: Serial No. NIA l!lumlrwill!lr, NIA N/A Sufftl-ro T(,mp.: ___ N""/A-'---- 'F Ktl'.Solutlon: 0.044" Character Card ult Bloch So1ial ~fo.: MT-40 Suna,:e CondiUotr Ground Smooth L,Jll/,'o Li:*~tlun: TDC I Weld Center Line H 1.1 kl 01,unla(lort 0190' Field Orientation Magnetic Particia Material Brand; MAGNAFLUX Tn1e:

2 Yellow Batel, No.:

18H017 Wut I] Dr,' f..i'i Vh,il.l&t..1 hi, fll;c,rei;,:.-;n1 I

I Mhoo Y c.,,,

-I Ap[>>ied By: No i l With: NIA 11 Equipn:m:il: li~d Shn! Auj. SfJcld1wJ MAGNAFLUX Serial No.. _____ 3_4'-0_0 ____ _ I I "I N_IA ___ Amp-mus Hxod Spadr1g AC i,,,; DC I I J-8 i11ch*..1s Prnds. Spacing,_ i H1d1r:;,ti,'bfl Inc No L NRl Cnmmc-ots* FIHhlight Used. NIA Io(; 1}mmeter Vv Character Card SN:DOM-2016-0028 inthes l.er,ntn NRI Yl RI [I Pen~nt Of Coverage Oht.,ined > 00% F:.:.Amjr.r,r l evf!l II Summers., Harold W, l::iJlmlner Lt!Vl'I NIA Ollw>r tevel NIA NJA Endrdrng CoJJs L Tums NIA Current (m,>{:hkflr: seWr,g) NIA T,*r,e MIL Eva! LI Rev>eV."Od Pnlv1ous Data: Dale Reviewer

Q/16.12020 t,J IA Dale Rtkfnr..-ks Sig:nature

/Imrie-ms 21:00

Date, Date

,n-ntStmi!!il~ lil1Xl<lil3 .....,~:'l-7-;""'." --------- C:;r:;,,* __

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UT Calibration/Examination NAPS NZ.R'l.20.0019 2D04 Ectmon 12!l50-WMKS.0101A-4 Sing!G-sidect exam due to configuraticm lruitrument Semng!!. 01XK!ll Kraullmamer 15.Wl-llll qan;e: 0.1257 in/p1< Pul$;i- "'."*tpe: 501i0hms "<s.1t;;::: Ai.ttO Higll St; :=.:~~v 2.25MHz -=:i,e1:;t)- 450 'l=.:;:tJSf'i 36 0.50 s.o* Sq1.11m; Q~~ 1-lSMHZ Cullw.ir;e 220 N!A. Se11n:h Unit 01CXBP KBA ',l.:,O;J>!, Comp.-0 NoA C:;_c-~*.s._ NA C:r:r:t;:n;r-: Sevch Un11 Cmble -:,-c~ RG 174 _,ingtn: 6' NA 0 Cal,bratlon Block Scan Ce>v<1n>g" Cal l;h;,:~ ~':* :;k:-,_ ,_0_11_7_1 ________ LC~i!'Tl ~ :Jow-1Wl::.l>Tl Sea:, a9, 5ll.O Czt, E,1L '7'e:n;_ 77 ie-rn;. ~c'!l:::1 C,,:;h"'nJ:i-Ten;_ 72"' Tef".'1:;. --cci Rtcordable lndleiition{i;)* ATK-2

z.

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2330 Cal.

Tlmc Dale Checki; lnn,a. Cai 2056 lnt~1.UL lllO 1;1tr-r-Cat NIA lr;:cr,:.a,. 2355 Fina! CaL, 0051 9!16!2020 9116l21l20 91'16/2020 ll/H,2020

aHbrat,.:;,*

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,: ,.,t'.s;io.!i 6.7 Souric Pan Couplant

ai, aaw-HHl87 Sonotech Tf.f...,_

h 3/4"** Soncte-eh E>Garr 9 a:-c"'"'** 1i'f'067 ..,,..)'PC: Sonotech l.'fp..: Sonote;ch CS Rompus Sloc;k 3-0 Ctn:::umfe111ntral Ori1m1ed Selilrch Uni! Signal Arr.plit.;.::.,e s:i: I F:~t!3te:i:7nr Arrplitod,, ',, FSDH 50 S;,veeo 01;,s,or 5,*te-1:!"p Di\\~~ic;r: J.2 $c;.ur-1d P~t""' 1.!.i1J" Effective awerage using U>e oo* &earc!t unit has tu~en verified by the presence of me weld root rns1,ponse during lh~ nt~uin,d "'-""""" m

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UT Calibration/Examination NAPS N:ZR27 N2.R1.211.001!1 UT-20-007 lSl Ne 59101!'11!155:I

i 2004 l::dltm n

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R*A.'R 1,20 LoCllll:::,r, TII C, ;i,s c:::: !IO rt Mla111 Steam (BPLJ Slnglll4>ded enm di,e to configuril:!Jcn tn1m1,1mant Setun!l" 01XKOl USN 00 SW Putts,1e,.-ype: __ S_q.;_u_a_,., __ 51>1l0hmEi 2t~1ttc:... ___ o_~_, __ A<<to High ~ec:tif FuUwall1e 11,-=:n 220 '.;11 Sound Pmth Ca.hb~.atlon Blo<:I, 0 ATK-2 ATK-2 Su,rch Unll Sen.a! '\\t;:.,.: OOF1DL t~tanur&~wer* KBA i::,z~* 0.50" ~,},::,".:r> Comi:,-G f:'""z:;: 2.25 MHZ Ct"-n,~eJ Fri--q~. NA !:,.>:,a,,, :...rr;;e,: 70" Sqw,it NA A,.'ti~-1> 6lt' Shmar t:- d E *N"11';-~!').,* C.;d,g.. __ s_,_n-=g_l., __ Round SHrch Uni! Cable Sc@n Cov~rii*\\lll' WPl£:rili!IT ';;j '.):,;srn,;:ri:,arr 00 Ground NA j t.:itior ~ w.. rtman. Justin Ew:211'!'1ner Cot<um, NiA NJA y.,,. c~,., 9(17!2020

!$1~

9/H/2020 2357 Cal. nm.,

Dilm, cn..,;;111,

!n!t.B Ca:. 2051 9,'1!iJ2020 2351 9/ifl}:2020 1.5"' N~ch N/A ln~e'r, C:zi:1 0015 !l/1712201 t=inaJ CaL 0051 !l/17!2020 Ccuplant

a:. B!lt:n*

HFOll7 Cln:umli,remilii Orlemc,d Search Unit T:,,~- Sanote;;h 17FOll7 ,':C-e. ____ S_CTI_a_1_.,_c_h __ _ M1~.s Sonoto--ch

-------i------i-----+------.

NSDH Swr:e;>

);\\Ji!lii:::m 1.1)47" m

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Enclosure R3-3 Supplemental Report IND 1 Serial No.: 21-087 Docket No.: 50-339 Attachment Page 63 of 68 UT-20 -001

Enclosure R3-3 Hq1ml Nu: Ill JO 00/ Serial No.: 21-087 Docket No.: 50-339 Attachment Page 64 of 68 -~~-******"*-**--*-*----*-*-*--- ~UIUfll,H Y ti N2 HUU,OOl'J ul f'll'fh1f<'d by,* W, 1 hotni!!, ll,ilc; '.I/ i4/ }1)}0 W1!ld r~urnlwr lhh ktll",'** ':>WI 1" W,*ld Width W1*fd IPllt!lh J Notes: rno,,. 'Nldth DnSt ftrr ]DOI., IUO'Ki 100'>' 0%

1. uri.1 * ( vvet i.i/;1' I ot,11

HP1t I flml ru111*w1:1.* (Max lotal I) I od1* ( 1JV1*1,11:,* 1t*l,0 f3/4 tn Ow 11i.w111um pr*,, l'Hl,11111 nJ lh1* i,r1111ir1*d P~.11111r1,1ti,111 vnlunw lh,,t h,,Ht,,. U*~dv,*x,1111lr."u with tit,* 1.111-,lilkil,.~,m1i11,,0ort 1*111u.*duit',

?} ll<",11 rl<i,1 (<JV1:1,1iJ,P H,fo,~ tu the* 1t*1111iwd 1*.*A1T1in,1h011 vulw11** p,HI tlw \\l.'1*1d , 1<11t,*1h1w lh,11 h 1*~Jm1ltwll m 1111*,nl.11 l1N111 t;fh,lh*n wllh,,I\\ App,.111l1, VHI d1*1r V!Ph,1trd i,100*,fw,* for '.,il!Jtli* r,lded,.,v,*1111:I' N//1

Ultrasonic Indication Report Dominion S1ta/Ufllt NAPS Summary No._ N2-R1.20.0019 Workscope. ISi Search Unit Angie: 70 'No Locatfon: Wold Centerline Lo Looilion: TDC 11P ,I!. a 14 tat P th max RBR Remaining Back Re!leciion V./T L Distar+ce From DatlJJTI 1/,/2, 2 D tan tS Procedure* ER-AA-NDE-UT--801 Procedure Rev.. 8 W or~: Orde,r 59101919553

s!* Piplng iNelds 2* Fe-mt1c Vessets

2"T Other ca !'"'TOm v,o 10

.,.,, *, axirnum R esponse Distarn::e,::rorn 1Nc At O* Max (F arNarcn Drstance crorn vvo.A.! OI Max ( Bac~,vard} CommenL,;: lndlcalloM rctt:ordlKI using 10* search unit arc ID geometry signals from born. f r1aicanor l/lJ Po,wl'.ra Bi,Ckw,nrct l 1 L L2 RBR Angle No. Ot Max Or Max 01Max. Of M!!): Of .-lmp. C.AC 'iV MP W1 MP '1V2 MP Max Mil< Outage No_: N2Rl7 Report No.: UT-20 *007 Page: 6 of 6 I .ru,rmi _., ri I Lo I l i-1 l a,1 ,4: ~ I

i

i C

\\;'l Wn:,: \\;/2 I I Remar'.:s 10~ 1 94 1.05 2.3 NJA NIA NIA Ni'A a* NIA 380" intermi1t1mt Examiner Leve! ~,

)ate Re\\'ie'i'.'tl"f Sig~

r!~l 11-PDI /

*l,lll<liure Wertman, Justin C/';V 9/1712020 vJ l..--r:i a Ar N:::,

1,::, ---rr;: 9 q ?' Examiner Leve! 11-P6f ~ Signature Date Stte Review __,4 ~turn D(.1e . ""t"rr - Et:>. cl 7/?J/~o Coburn, Timothy M. 911712020 ~, ~ ' JU. . 1"11,1\\1 / ;,r--;/ Other Leveff. NIA ~ Signature Cate l~f;J,ll Review V - -)C{""' Date NIA i(,... )(°'--, ~ t Add1nona1 - UT lnd1cat1on Data <Edit Prem Seti.'O> ? m

i 0

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Enclosure R3-3 Serial No.: 21-087 Docket No.: 50-339 Attachment Page 66 of 68 Magnetic Particle Examination Dominion s,101\\11111: NAPS 2 E~-AA-NOE-MT-200 N2R27 SurftffhlfY Nn.: N2.R1,20.0010 Proci:,,Jtiro Rov.: 8 MT-20 -005 AUG Wort Orum Nu : 59101919553 u1 2004 Edition R-A/RUO LoOJlkln: TB 12050-WMKS-010IA-4 Dosulphr>n: Main Steam (BPL) Sy,;lr:im ID SHP C 0111 p n rn in l ID 12050-WMKS-0101A-4 / 32' -SHP-458 I SW-7 (BPL 209) CS/1.Hl!i~ Limltallons: None LliJlil Mofor M!y.: fom11. Tool MftJ. Resohiliorr Lill Blocl-. Seti<1l No.: Lo.'Wo Location: NIA NIA o,044~ Chim1ctor Card MT-40

roe / Wold Center Lino Magnotle P.irtlclo Matorl.:il Br,.md MAGNAflUX 1ype

2 Yellow Act!c.hNo.:

18H017 Smml No.: NIA l1lummalio11: NIA NIA --'-N/"""A __ 'F Suri,,cn Coodltio11: Groilnd Smooth Fl n Id Onent;,tion: 0190" Fiold Orientation W,;11 I Dry l\\11 Vi'1ib!o htl Fluor,,sr:enl i l W11h: Yr:'fi I I Nn 1 NIA Appcliud l:ly Sf.11H)'1flu I rlootiinq I [qtl!f.1411<'.Jtll MAGNAFLUX Smlal N1J 3400 Hr,,1d Shot I I /11JJ. Sp,idll!J

,.,i Prods Sp,,dnq lnt1ic,11lon

tor, Nn L

NRI Co11111Hmt,; Fl11shllghl Us~d. NIA

Ul NIA lnc Diarrtflte1r w

Ch:m1clcr Card SN:DOM-2016*0028 NKI f,., RI I Po1co11t Ot Covurn,Jo Olituh1ed [)0%: Exam,ner Lev£;! II Sommers, Harold W. L;,:a111,11m Lowil NIA fl'.hl'.!1' l,,vel NIA NIA Atnp,crns inchm; rn,::ll.is l *m1Jlh flxt"<I Spi!<:Jn'[) l116n:lmy Coll;; Curmnl {m-1cliine s.a11i'lt1l 1vr:~1 Rlt Dato ReV!i?W!'lr 9/1 £112020 rJ '" Dato Sfte Hn*,fow P.. n M Yes 1\\r: Yi DC I NIA lu1m; NIA AnlfA::Jrns R*mmrit*, 21:00

7.0 DURATION OF PROPOSED ALTERNATIVE Serial No.: 21-087 Docket No.: 50-339 Attachment Page 67 of 68 The proposed alternatives in this request, if approved, will be applicable for the fourth 10-year ISi interval for NAPS2 which began on December 14, 2010 and ended on December 13, 2020. 8.0 PRECEDENTS Although Fourth Interval Risk-Informed selections are different from those for the Third Interval, alternative requests were granted for examinations in similar locations with the same service conditions as identified in requests N 1-I3-PRT-004-Part D [Reference 4] and N2-I3-PRT-002-R1 [Reference 5]. NAPS1 was granted similar alternative requests for Fourth Interval First Period Limitations in requests N1-I4-LMT-001 [Reference 6], Second Period Limitations in request N1-I4-LMT-002 [Reference 7], and Third Period Limitations in request N1-I4-LMT-003 [Reference 8]. NAPS2 was granted similar alternative requests for Fourth Interval First Period Limitations in request N2-I4-LMT-002 [Reference 9] and Second Period Limitations in request N2-I4-LMT-003 [Reference 1 0].

9.0 REFERENCES

1.

ASME Code Section XI, 2004 Edition with No Addenda.

2.

ASME Code Case N-460, "Alternative Examination Coverage for Class 1 and Class 2 Welds."

3.

North Anna Power Station, Unit Nos. 1 and 2, "Fourth 10-Year lnservice Inspection (ISi) Program, Relief Requests (RRs) for Alternative N1-I4-Rl-001 and N2-I4-Rl-001," dated January 21, 2011. (ADAMS Accession No.: ML110050003)

4.

North Anna Power Station, Unit No. 1, "Third 10-Year lnservice Inspection Interval Program, Relief Request N1-I3-PRT-004, Part A through Part G," dated January 7, 2011. (ADAMS Accession No.: ML110060011)

5.

North Anna Power Station, Unit No. 2, "Relief Request N2-I3-PRT-002, Limited Coverage Examinations for the Third 10-Year lnservice Inspection Interval," dated August 17, 2012. (ADAMS Accession No.: ML12227A773)

6.

North Anna Power Station, Unit No. 1, "Relief Request N1-I4-LMT-001, Limited Examinations for the Fourth 10-Year lnservice Inspection Interval Period 1," dated August 30, 2013. (ADAMS Accession No.: ML13234A353)

Serial No.: 21-087 Docket No.: 50-339 Attachment Page 68 of 68

7.

North Anna Power Station, Unit No. 1, "Relief Request N1-I4-LMT-002, Limited Examinations for the Fourth 10-Year lnservice Inspection Interval Period 2," dated January 10, 2018. (ADAMS Accession No.: ML18005A190)

8.

North Anna Power Station, Unit No. 1, "Relief Request N1-I4-LMT-003, Limited Examinations for the Fourth 10-Year lnservice Inspection Interval Period 3," dated January 15, 2021. (ADAMS Accession No.: ML20364A040)

9.

North Anna Power Station, Unit No. 2, "Relief Request N2-I4-LMT-002, Limited Examinations for the Fourth 10-Year lnservice Inspection Interval Period 1," dated February 3, 2015. (ADAMS Accession No.: ML15023A219)

10. North Anna Power Station, Unit No. 2, "Relief Request N2-I4-LMT-003, Limited Examinations for the Fourth 10-Year lnservice Inspection Interval Period 2," dated May 29, 2019. (ADAMS Accession No.: ML19143A342)}}

v t e Letter Sequence Request
EPID:L-2021-LLR-0088, ASME Section XI Inservice Inspection Program Relief Request N2-14-LMT-003 Fourth Interval Third Period Limited Examinations (Approved, Closed)
Initiation Request Acceptance... Administration Questions 24 March 2022 Answers 25 April 2022 Results Approval, Approval Other:
MONTHYEAR2022-03-24 [Table View]

Person / Time
ML21348A711
Site:	North Anna (NPF-004)
Issue date:	12/13/2021
From:	Mark D. Sartain Virginia Electric & Power Co (VEPCO)
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
21-087
Download: ML21348A711 (72)
v • d • e

ML21348A711

Text

Attachment:

9.0 REFERENCES

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