ML21348A711

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ASME Section XI Inservice Inspection Program Relief Request N2-14-LMT-003 Fourth Interval Third Period Limited Examinations
ML21348A711
Person / Time
Site: North Anna Dominion icon.png
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)


Text

{{#Wiki_filter:VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 10 CFR 50.55a December 13, 2021 U.S. Nuclear Regulatory Commission Serial No.: 21-087 Attention: Document Control Desk NRA/ENC: RO Washington, D. C. 20555 Docket No.: 50-339 License No.: 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 10 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

Serial No.: 21-087 Docket No.: 50-339 Page 3 of 3 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 ATTACHMENT Relief Request N2-14-LMT-004, "Fourth Interval Third Period Limited Examinations" Virginia Electric and Power Company (Dominion Energy Virginia) North Anna Power Station Unit 2

Serial No.: 21-087 Docket No.: 50-339 Attachment Page 1 of 68 TABLE OF CONTENTS 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

Serial No.: 21-087 Docket No.: 50-339 Attachment Page 2 of 68 LIST OF ENCLOSURES 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 ........ .47 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

Serial No.: 21-087 Docket No.: 50-339 Attachment Page 3 of 68 RELIEF REQUEST N2-I4-LMT-004: 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].

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

Serial No.: 21-087 Docket No.: 50-339 Attachment Page 5 of 68 R1. Risk-Informed Piping Welds Subject to Thermal Fatigue 4.R1 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 the configuration of these components. Scan Exam Weld Line No. Enclosure Exam 1 Angle Mode Frequency Coverage Date (%)2 (degree) (MHz) Dwn/CW/CCW 45 Shear 2.25 50% Dwn/CW/CCW 60 Sheer 2.25 3 14"-RC-410 R1-1 3/09/2018

                   +25% BE                      Up                                 60    Longitudinal        2.0 Dwn/CW/CCW                          45       Shear           2.25 50%                       Dwn/CW/CCW                          60       Shear           2.25 3A     6"-RC-416                   R1-2                           3/12/2019
                   +25% BE                     Up                                  60    Longitudinal        2.0 Up                                  70       Sheer           2.25 Dwn/CW/CCW                          45       Shear           2.25 50%                       Dwn/CW/CCW                          60       Shear           2.25 1     6"-RC-421                   R1-3                           3/11/2019
                   +25% BE                     Up                                  60    Longitudinal       2.0 NOTES:    1  Up        Axial scan on the upstream side of weld Dwn       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 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.

UT Calibration!Examination m

I Dominion Site/Unit NAPS i

2 Procedure: ER-AA-NDE-UT-802 Outage No.: N2R26 Sl Summary No.: N2.R1.11.314 Procedure Rev.: 5 Report No.: UT-19 -073 0 ti) Works cope:

                                       ---------------       ISi                                      Work Order No.:                  59203136641                                   Page:

1 of 5 C

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                                                                                                                                                                                                                 ;:;o Code:                             2004 Edition                                   Cat/Item:               R-A/R1.11                       Location:                            C-LOOP                              ....

Drawing No.: 12050-WMKSi0109D

Description:

Weldolet to Elbow I System ID: RC 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 t Instrument Settings Search Unit Serial No.: 140723807 i Serial No.: 01CXBL Cal. Checks Time Date Axial Oriented Search Unit I Calibration Signal Sweep Manufacturer: Olympus Initial Cal. 1015 3/9/2019 Sound Path Manufacturer: KBA Reflector Amplitude% Division 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 Inter. Cal. NIA Freq.: 2.25MHz Center Freq.: NIA M'!ICalNel: Pulser: Inter. Cal. 1313 3/9/2019 0.1230 Square Exam Angle: 45 Squint Angle: NIA Damping: 400 Reject I 0 --- --- Final Cal. 1559 3/9/2019 Rep. Rate: Auto Freq.: 12.25 Measured Angle: Exit Point 0.20 45 Mode:

                                                                                          # of Elements:

Shear Couplant Filter: 0.5-4.0 Mode: IFW Config.: Single Focus: NIA Cal. Batch: 17F087 Circumferential Oriented Search Unit Voltage: 400 other: IN/A 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 Search Unit Cable 4.00 Sound Path 10 Screen Div. =

                       --      in. of Calibration Block I

i Type: RG174 Length: 6 No. Conn.: 0 Type: Mfg.: Sonotech Sonotech i Scan Coverage Cal. Block No. 05-8514  ! Reference/Simulator Block D Downstream~ Scan dB: 25.0 Reference Block Thickness 2.25" Dia.: oi Upstream cw~ ccw~ -- scan dB:* 25.o Serial No.: 05-6533 Gain dB Signal Sweep Reflector Amplitude% Division Sound Path Cal. Blk. Temp. 71 Temp. Tool: ATK12 Exam Surface: OD

                                                                                                           -- Type:             SS Rompus Block          13.0        SDH         22          2.6         1.054 Comp.Temp.          86   Temp. Tool:            ATK12 Surface Condition:         Ground Smooth Recordable Indication (s } :         Yes   D       No          (If Yes, Ref. Attached Ultrasonic Indication Report.)

Comments: None Results: NRI ~ RID Geom D Percent Of Coverage Obtained > 90%: No Reviewed Previous Data: NIA Examiner Level Signature Johnson, Jeffrey M. Examiner Level Signature Date Zollner, Brian D 3/9/2019 Other Level Signature Date NIA UT Calibration/Examination

UT Calibration/Examination m

I Site/Unit: NAPS i

2 Procedure: ER-AA-NDE-UT-802 Outage No.: N2R26

                                                                                                                                                                                                                                £?..

Dominion 0 Summary No.: N2.R1.11.314 Procedure Rev.: 5 Report No.: UT-19 -073 ti/ C: Workscope: ISi Work Order No.: 59203136641 Page: 2 of 5

                                                                                                                                                                                                                                ""'I (1)
                                                                                                                                                                                                                                ;;o Code:                              2004 Edition                                   CaUltem:                R-A/R1.11                       Location:                             C-LOOP                                           ......

Drawing No.: 12050-WMKSi0109D

Description:

Weldolet to Elbow I 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. Time Date Axial Oriented Search Unit i Serial No.: 140723807 i Serial No.: 0OF1DL Checks Calibration Signal Sweep Manufacturer: Olympus I Manufacturer: KBA Initial Cal. 1034 3/9/2019 Sound Path I Reflector Amplitude% Division 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: Damping: 400 Reject  ! 0 Measured Angle:

                                                                                --  60
                                                                                       - Squint Angle: -N/A  --      Final Cal. 1601     3/9/2019 Rep. Rate:         Auto                   Freq.:     12.25 Mode: Shear                            Couplant Exit Point       0.30     # of Elements:      1 Filter:           0.5-4.0                 Mode:      !FW          Config.:       Single       Focus:
                                                                                                            - - Cal. Batch:

N/A 17F087 Circumferential Oriented Search Unit Voltage: 400 Other: IN/A Type: Sonotech Calibration Signal Sweep Shape: Round Contour: Flat Reflector Amplitude% Division Sound Path I Mfg.: Sonotech Wedge Style: MSWQC Ax. Gain (dB): 30.0 Circ. Gain (dB): I NIA I Search Unit Cable Exam Batch: 17F087 NIA 10 5.00 Sound f'ath Type: Sonotech Screen Div. = in. of Type: RG174 Length: 6 No. Conn.: 0 Calibration Block i - Mfg.: Sonotech Scan Coverage Cal. Block No. 05-8514 Upstream O Downstream~ Scan dB: 42.0 Reference Block Reference/Simulator Block Thickness 2.25" Dia.: ol ccw~

                                                                                                            --       Serial No.:

Gain Signal Sweep Sound Path cw~ Scan dB: 42.0 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 Recordable lndication(s):             Yes  O        N~  2)      (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 Percent Of Coverage Obtained > 90%: No Reviewed Previous Data: NIA during the required scans. ~ (/) 0 (D Examiner Level Date ~:::!. Johnson, Jeffrey M.

                                                                                                                                                                                                                    -U      $. Ol Examiner             Level                                                                                                                                                                                         Jl5    ZZ CD :=:: 0 0

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  • Zollner, Brian D Other Level Signature Date o§-01N NIA 03'?~
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(.u (.u 0 co UT Calibration/Examination CO~CO-.J

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 Workscope:

                                      ------'------------  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 Calibration Signal Sweep Manufacturer: Olympus Manufacturer: RTD Initial Cal. 1105 3/9/2019 Sound Path 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.: Center Freq.: Inter. Cal. N/A 2.0 MHZ N/A Inter. Cal. 1350 3/9/2019 M't!CalNel: 0.2320 Pulser: Square Exam Angle:

                                                                             --  60
                                                                                    - Squint Angle: -NIA --       Final Cal. 1604     3/9/2019 Damping:           400                Reject:     I0           Measured Angle:

Mode: Longitudinal Rep. Rate: Auto Freq.: I 2.0 Couplant Exit Point .75 # of Elements: 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: Sonotech Type: Length: No. Conn.: 0 Calibration Block RG 174

                                                                                           -6 Scan Coverage
                                                                                                            -     Mfg.:           Sonotech Cal. Block No.                    05-8514                      Upstream~ Downstream         D    Scan dB: 60.0             Reference Block                            Reference/Simulator Block Thickness        2.25"         Dia.:            01                                    ccwo
                                                                                                         --       Serial No.:         05-6533 Gain                   Signal       Sweep Sound Path cw                         Scan dB: NIA Cal. Blk. Temp.
               --71    Temp. Tool:           ATK~2 Exam Surface:                    OD
                                                                                                         -- Type:            SS Rompus Block dB 48.0 Reflector Amplitude% Division FSDH          45           2.7         1.556 Comp. Temp.

Temp. Tool: ATK+2 Surface Condition: Ground Smooth Recordable lndication(s): Yes 0 Nb~ (If Yes, Ref. Attached Ultrasonic Indication Report.) Results: NRI ~ RI 0 Geom D Comments: None. Percent Of Coverage Obtained > 90%: No Reviewed Previous Data: N/A Examiner Level Signature Date Reviewer Johnson, Jeffrey M. 31912019 ~ L.-nfo ~ ~ Examiner Level Signature Zollner, Brian D Other Level Signature NIA UT Calibration/Examination

m

.I Supplemental Report £!.

Report No.: UT-19 -073 0 Dominion* Page: 4 of 5 ti) C ci1 Summary No.: N2.R1.11.314  ::a Examiner: Johnson, Jeffrey M. Level: 11-PDI Reviewer:

                                                                                                     ~.==..:J.:::i.==..L..-~C:::!:.....:.::.=_ __.,;~ Date:    3 */D* Jj; I

Examiner: Zollner, Brian D Level: 11-PDI Site Review: ..ld.!.!::i:!::l~L!..£:?1E~~~--_£QlbC:::.._ Date: ~ f?--o/?<s ,q_ Other: __N _ / A - ' - - - - - - - - - - - - - - - Level: NIA AN!I Review: -------""'--'--"-"'=::.;...----- Date: 3 /z.r/2,9 Comments: Sketch or Photo: JS C/5 - l,'J.il .. . ' Lt~ Toe-- t.~l'.1 .. . '-....)c.l...c.\- °' - \...c..."'\ L,.*iel..,l (b. _ \~lo\ ~S *. ts i'oe - , ...rt<.,"

                                       ~-----.,r----.....:;**:..!.'----------

l ,5 bS - I. L{oS .. J. ..s". b.5 - l. 3'l7 .. w ., c......w - /,J5'0 Additional* Supplemental Data

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. T h o m a s ~ ~ Date: 3/10/2019 Weld Number 3 Weld Width 1.25" Thickness 1.283 11 Weld Length 44" FLOW 3

                          ---------.------,,'J--------,,4,__5_

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 2.25" 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 50% 100+ 100+100+0=300/400=. 75

  • Best Effort Coverage (Max 25%) Total 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.

Enclosure R1-1 Serial No.: 21-087 Docket No.: 50-339 Attachment Page 14 of 68 Liquid Penetrant Examination Sile/Unit: NAPS 2 Procedure: ER-AA-NDE-PT-300 Outage No.: _ _N_2_R_2_6_ _ Summary No.:

                   -----------N2. R1.11.314                         Procedure Rev.:                     7                           Report No.:            PT-19 -012 Workscope:                    AUG                              Work Order No.:            59203136641                                  Page:         1         of     1 Code:                  2004 Edition                        Cat./ltem:       R-A/R1.11         Location:                                 C-LOOP Drawing No.:              12050-WMKS-0109D                          

Description:

WELDOLET-TO-ELBOW System ID: RC Component ID: 12050-WMKS-0109D I 14-RC-410 I 3 Mat./Thiclmess: ss ,11.,l/.l)(,/

                                                                                                                                                         -4.4Qli" .'     14u-
  • L-lm_1t_a1_1o_n_s:--=N;;o;;ne;;;;;;;;;;;;;;;;;;;;:;;;:;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:;~~ry.Jl1 Light Meter Mfg.: NIA Serial No.:
                                                                                      - - - -NIA- - - -                    Illumination:
                                                                                                                                             -------        NIA Temp. Tool Mfg.: _ _ _ __.;.A.;.;T.;..K::.:IN.;,;S;,...__ _ __         Seri aI No.:              ATK-2                           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:
                                                                                                                      ------------- Ground Smooth Visible i;z]

Cleaner Penetrant Fluorescent D Remover Developer Brand MAGNAFLUX MAGNAFLUX MAGNAFLUX MAGNAFLUX Type SKC*S SKL-SP2 SKC-S SKD-S2 Batch No. 18C21K 15J02K 18C21K 14l<04K Time Evap. 3Mln Dwell 10Min Evap. 1 Min Develop 10 Min Time Exam Started: 2151 Time Exam Completed: 2225 Indication Loe Loe Diameter Length Type Remarks No. L w R/L NRI Comments: DOM"2016;0156**- ---*-* *---*--- *-~---***** Flashlight used to resolve character card Results: NRI ~ RI 0 Eval D N/A Percent Of Coverage Obtained > 90%: Yes Reviewed Previous Data: NIA Examiner Level Date Reviewer Signature Date Flood, Steven 3/8/2019 NIA Examiner Level NIA Signature Date Site Review Date N/A 3/8/2019 Dennis Strickland Lv II 3/18/2019 Other Level NIA Signature Date ANII Review f\) -{/ Date NIA liquid Penetrant Examination

UT Calibration/Examination m Dominion Site/Unit NAPS 2 Procedure: ER-AA-NDE-UT-802 Outage No.: N2R26 s:?. 0 Summary No.: N2.R1.11.459 Procedure Rev.: 5 Report No.: UT-19-070 f/1 C Workscope: ISi Work Order No.: 59203136641 Page: 1 of 8 '"'!I (I) Code: 2004 Edition CatJltem: R-AIR1.11 Location: A-LOOP  ;;u

                                                                                                                                                                                                                       ...;i.

I Drawing No.: 12050-WMKS-q103AG

Description:

Valve to Elbow N System ID: RC

                -----------+------------------------------------------------

Component ID: 12050-WMKS-0103AG / 6-RC-416 3A I 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.

Time Date Axial Oriented Search Unit Serial No.: 140723807 Serial No.: S10321 Checks Calibration Signal Sweep Initial Cal. 1740 3/12/2019 Sound Path Manufacturer. Olympus  : Manufacturer: GE Reflector Amplitude% Division Inter. Cal. 2010 3/12/2019 Model: EPOCH600 Linearity: L-19-!)01 Size: .375" Model: Comp-G 1" Notch 80% 7.1 1.415" Inter. Cal. 2032 3/12/2019 Delay: 4.900µs Range: 12..0* Freq.: 2..25MHZ Center Freq.: NIA Inter. Cal. NIA M't!CaWel: 0.1230 in/µs Pulser: Square Exam Angle: 45* Squint Angle: NIA Damping: 400!1 Reject i
                                                      ! 0%          Measured Angle:
                                                                                   ---    45°   Mode:

Shear Final Cal. 2351 3112/2019 Rep. Rate: Auto Freq.: !2..25 Exit Point

                                                                                        - -# of Elements: 1 0.25" Couplant
                                                                                                               -   -    Cal. Batch:         17F087                   Circumferential Oriented Search Unit Filter:         0.5-4.0 MHz                 Mode:    Follwave        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 I'          Wedge Style:                MSWQC Exam Batch:          17F087 NIA

/Joc Gain{dB}: 29 Circ. Gain (dB): i NIA Search Unit Cable Type: Sonotech 1 0.20 Sound Path Type: RG174 Length: 6' No. Conn.: 0 -- Screen Div. = in.of Calibration Block  ! Scan Coverage

                                                                                                                   -    Mfg.:           Sonotech Reference/Simulator Block D                lilJ  Scan dB:    35            Reference Block Cal. Block No.

Thickness 2.25" 05-8514 Dia.: 0 I Upstream cw~ Downstream ccw~ Scan dB:

                                                                                                               -- 35    Serial No.:         05-6533 Gain dB Signal Reflector Amplitude%

Sweep Division Sound Path Cal. Blk. Temp. 11* Temp. Tool: ATK~ Exam Surface: OD

                                                                                                                --      Type:      SS Rompus Block            29.0       FSDH        80%          5.4         1.065" Comp.Temp.          59* Temp. Tool:                ATK-~             Surface Condition:         Ground Smooth Recordable Indication (s ) :           Yesr-u       No ,;;i~

If Yes Ref. Attached Ultrasonic Indication Re p ort. Comments: Examined per the requirements of MRP-146. Results: NRI lilJ RI 0 Geom CR 1118871 issued for coverage not greater than 90%. Percent Of Coverage Obtained > 90%: Reviewed Previous Data: Yes Examiner Leve! II.PD! Date Reviewer Date Wertman, Justin 3/12/2019 vJL~ 5 3 *ZI* Examiner Level 11-PDI Date Site Review Date Hacker, Jonathan 311212019 'R.C*eis-reP1:tee WnA'1 L,.J[. Other Level N/A Date ANII Review N/A UT Calibration/Examination

I UT Calibration/Examination m

s I

I £ Dominion Site/Unit NAP~ 2 Procedure: ER-AA-NDE-UT-802 Outage No.: N2R26 0 tn Summary No.: N2.R1.11.459 Procedure Rev.: 5 Report No.: UT-19 -070 C

                                                                                                                                                                                                                   ~

Workscope: ISi Work Order No.: 59203136641 Page: 2 of 8 CD

                                                                                                                                                                                                                   ;;o Code:                             2004 Edition                                   CatJltem:               R-A/R1.11                       Location:                            A-LOOP I

N 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. Time Date Axial Oriented Search Unit Serial No.: 140723507 I Serial No.: SI0328 Checks Calibration Signal Sweep Manufacturer: Olympus I Manufacturer: GE Initial Cal. 1742 3/12/2019 Sound Path I Reflector Amplitude% Division 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: Range: Inter. Cal. 2042 3/12/2019 5.600 µs f875" Freq.: 2.25 MHZ Center Freq.: NIA Inter. Cal. N/A M'tlCalNel: 0.1230 in/µs Pulser: ~quare Exam Angle: so* Damping: 4000 Reject: lo3/4

                                                                               - - - Squint Angle: ---      N/A Final Cal. 2353    3/12/2019 Measured Angle:

Rep. Rate: Auto Freq.: 12.25 Exit Point

                                                                                    -59°-# Mode:

0.30" Shear of Elements: 1 Couplant 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 Wedge Style: MSWQC N/A k<. Gain {dB): 30 Circ. Gain (dB):  ! N/A Exam Batch: 17F087 I Search Unit Cable Sound fath Type: Sonotech 10 Screen Div.= 2.875 in. of Length: Calibration Block lI Type: RG174

                                                                                             -6' No. Conn.: -0 Scan Coverage Mfg.:          Sonotech Cal. Block No.                     05-8514           !           Upstream   O    Downstream~ Scan dB:          36            Reference Block                           Reference/Simulator Block Thickness         2.25"         Dia.:            oI                     CWw!            CCW ~

Scan dB: 36 Serial No.: 05-6533 Gain dB Signal Sweep Reflector Amplitude% Division Sound Path Cal. Blk. Temp. 71° Temp. Tool: ATK-i:2 -- Comp. Temp.

                --69° Temp. Tool:             ATK~~

Exam Surface: OD Type: SS Rompus Block 30 FSDH 87% 5.1 1.477"

                --                                               Surface Condition:        Ground Smooth Recordable lndication(s):            Yes 0        No~          (If Yes, Ref. Attached Ultrasonic Indication Report.)

Results: NRI ~ RI 0 I Geom O Comments: Effective coverage using the 60° search unit has been verified by the presence of the weld root response I during the required scans. Percent Of Coverage Obtained > 90%: No Reviewed Previous Data: Yes Examiner Level Date Reviewer Date Wertman, Justin 31121201s W.L _,g'~ 3*-Z.1*2 Examiner Level 11-PD Date Site Review Date Hacker, Jonathan 3/12/2019 'R. c~ic.l$-n:>~l-l-e:e W\'2-1','f L.1-.Ii[ '3* 22. *J '1 Other Level N/A Date ANII Review N/A UT Calibration/Examination

UT Calibration/Examination m

I Procedure: ER-AA-NDE-UT-802
                                                                                                                                                                                                                  £ Dominion            Site/Unit:          NAP~                      2                                                                                                    Outage No.:           N2R26        0

(/1 Summary No.: N2.R1.11.459 Procedure Rev.: 5 Report No.: UT-19 -070 C:

                                        ----'-------------                                                                                                                                                        ~

CD Workscope: ISi Worl< Order No.: 59203136641 Page: 3 of 8

0 Code: 2004 Edition CatJltem: R-A/R1.11 Location: A-LOOP I

Drawing No.: 12050-WMKS-tj103AG

Description:

Valve to Elbow N 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 I Instrument Settings I Search Unit I Cal. Time Date Axial Oriented Search Unit Serial No.: 140723507 Serial No.: 06-108 Checks Calibration Signal Sweep Manufacturer: Olympus Manufacturer: RID Initial Cal. 1745 3/12/2019 Sound Path

                                                    !                                                                                                       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"                                                           Inter. Cal. 2102    3/12/2019 Freq.:   2.0 MHZ       Center Freq.:     N/A Inter. Cal. NIA M'tlCalNel:       0.2298                 Pulser:    Square       Exam Angle:       so*    Squint Angle:
                                                                               ---                      -N/A
                                                                                                           --       Final Cal. 2355    3/12/2019
                                                                                    -so*-

Damping: 400 Reject !0% Measured Angle: Mode: Longitudinal Rep. Rate: Auto Freq.: i 2.0 Couplant Exit Point 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 Sound fath Type: Sonotech 1 Screen Div. = .2875 in. of Type: RG174 Length: No. Conn.: 0 Calibration Block

                                                                                            -6'               -     Mfg.:           Sonotech I                           Scan Coverage Reference/Simulator Block Cal. Block No.                       05-8514                     Upstream~ Downstream O Scan dB:              54             Reference Block Thickness         2.25"          Dia.:             01 cwo             CCW O Scan dB: NIA      Serial No.:          05-6533 Gain dB Signal Reflector Amplitude%

Sweep Division Sound Path Cal. Blk. Temp. 71° Temp. Tool: ATK-1 -- Type: SS Rompus Block 42 FSDH 80% 4.9 1.408" Exam Surface: OD 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%: No Reviewed Previous Data: Examiner Level II-POI Reviewer Wertman, Justin Examiner Level II-POI Site Review Hacker, Jonathan R. C.-.e,s,0~1+1;.c:i WaA"I Other Level N/A ANII Review N/A UT Calibration/Examination

UT Calibration/Examination m 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 0
                                                                                                                                                                                                                      "'C Workscope:
                                         ---~-----------       ISi                                        Work Order No.:                 59203136641                                    Page:      4     of      8
                                                                                                                                                                                                                      ""I (1)

Code: 2004 Edition Cat./ltem: R-A/R1.11 Location:

                                                                                                                                                                                                                      ;;:a A-LOOP                                ...Jo.

I Drawing No.: 12050-WMKS-Q103AG

Description:

Valve to Elbow N 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.

                                                     !                                                                              Time       Date                      Axial Oriented Search Unit Serial No.:                        140723507                       Serial No.:                SI0331                    Checks Calibration        Signal         Sweep       Sound Path Manufacturer:                       Olympus           I            Manufacturer:                  GE                   Initial Cal. 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"                                                            Inter. Cal. NIA Freq.:   2.25MHZ        Center Freq.:      N/A Inter. Cal. 2107    3/12/2019 M'tl CalNel:   0.1230 in/µs              Pulser:     ~quare        Exam Angle:       70°     Squint Angle:

Damping: 4000 Reject: lo3/4

                                                                                 ---                       -N/A
                                                                                                              --       Final Cal. 2357    3/12/2019 Measured Angle:

Rep. Rate: Auto Freq.: 12.25 Exit Point

                                                                                      -70°-# Mode:

0.35" of Elements: Shear 1 Couplant Filter: 0.5-4.0 MHz Mode: I F4llwave - - 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 I Wedge Style: MSWQC N/A Ax. Gain (dB): 38 Circ. Gain (dB): i N/A Search Unit Cable Exam Batch: 17F087 Type: Sonotech 1 Screen Div. = 0.42 in. of Sound Path Type: Length: Calibration Block RG174

                                                                                               -6' No. Conn.: -0 Scan Coverage Mfg.:           Sonotech Cal. Block No.                       05-8514           I           Upstream~ Downstream         D    Scan dB:    40            Reference Block                             Reference/Simulator Block Thickness         2.25"           Dia:              oI                                     CCW O Scan dB: N/A
                                                                                                              --      Serial No.:         05-6533 Gain                  Signal        Sweep Sound Path cw                                                                                 dB      Reflector Amplitude% Division Cal. Blk. Temp. 71° Temp. Tool:               ATK~

Exam Surface: OD

                                                                                                              -- Type:            SS Rompus Block           26.0       NSDH         56%          2.2         0.924 Comp. Temp.        69° Temp. Tool:               ATK-~

Recordable lndlcation(s): Yes D Nb~ Surface Condition: Ground Smooth (If Yes, Ref. Attached Ultrasonic Indication Report.) Results: NRI r.,J RI

                                             -n       i Geom    D                                                                   Comments: Used for indication discrimation i

Percent Of Coverage Obtained > go%: NIA Reviewed Previous Data: Yes Date Date Reviewer t--ev;:tJr.. Examiner Wertman, Justin Level 11-PDI 311212019 Date

w. L-ri::fo,,,,.A.s Site Review Examiner Level 11-PDI Hacker, Jonathan 311212019 Q. Cn-iu sTi Other Level N/A Date ANII Review Date N/A UT Calibration/Examination

Enclosure R1-2 Serial No.: 21-087 Docket No.: 50-339 Attachment Page 19 of 68 Supplemental Report Report No.: UT-19 -070 Page: 5 of 8 Summary No.: N2.R1.11.459 t,e,,J ,1iC

                  ------...,,....,=--r----

Examine r: Wertman, Justin Level: JI-PDI Reviewer; w.c....:m::~AS ;::::;,t:: Dale: 3 *'LI* l'l' Examiner: Hacker, Jonathan Level: II-POI Site Review: 'i<.C!ltM~VllEI? \.)(411:zv.,m: )?C.W Date: '1* 2.2.

  • l'i Other: NIA
                 ----------               Level:   NIA  ANII Review:               ~            ---e,          Date: _y,;;v-/2,,P Comments:

Sketch or Photo: WCW= I: 10 .e::::J V-JA I II 11 CIRC:: ']J0 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 ";\}.:JJr;.

                  -----~"--;:"7';,'--,........-

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

     *:i                        I 2

l 1 0 I 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 Prepared by: W. Thomas 8  ;:1/L ,., , . . t.E'I ,.,.,_ Date: 3/21/2019 Weld Number 3A Weld Width 1.20" Thickness 0,887" Weld Length 21"

,v Q1....__ _ _ _-el_ _......,__ _.__1_         _.___ _-'--l _    __,__ _- ' - - - - ' - - - - - - ' - ' - - ~ - - - '

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%

                                                                                                                                 ./4evlewed Code Coverage Total                  I     50%
                                                                                                                                * *1 Wltqeued 100+100+100+0=300/400=.75
  • Best Effort Coverage (Max 25%) Total I 25%

Hartford Notes: Steam

1) Code Coverage refers to the maximum percentage of the required examination volume Boller that Is effectively examined with the qualified examination procedure. 9531
2) Best Effort Coverage refers to the required examination volume past the weld HS,B centerline that is examined In the axial beam direction with an Appendix VIII 3/3,rd/

demonstrated procedure for single sided coverage.

                                                                   ?<. !"~HJ).                 i.vJ 1~22-1 r
                                                                        - 7

Ultrasonic Indication Report m

                                                                                                                                                                                                     ~
                                                                                                                                                                                                     £.

Dominion Site/Unit 0 NAPS 2 Procedure: ER-AA-NDE-UT-802 Outage No.: N2R26 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  ::a

                                                                                                                                                                                                     ..i.

I I\) Wo wl"llaX Search Unit Angle: soRL 0

                                                                                    @ Piping Welds                                                                Ct Wo Location:               TDC                                          0   Ferritic Vessels ~ 2"T                                                     I Lo Location:              ell.                                        0   Other                                                                 ' .

MP RBR L Comments: Metal Path Remaining Back Reflectjon Distance From Datum

                     -Je:R.tF'fr:d:>

i i e,~ p~. Wmax W1 W2 Distance From Wo To S.. Distance From Wo At Distance From Wo At U At Maximum Response Of Max (Forward) Of Max (Backward) ri Jjl h i ~

                                                                                                                                                                                  ""':Aill1\ol Lo VJ; Indication      %              'W                 Forward         Backward         L1         L         L2     RBR                           Remarks Angle         No.          Of             IMax                  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 Date Wertman, Justin Examiner Level 11-PDI  : - re :P' 3/12/2019 w!..  :-Tuo/11,..>, !". Date Site Review Ull;!JT

                                                                                                                                                  ~Ure Signature      iill ,              3*2.l*L'l Date Hacker, Jonathan Other NIA Level NIA
                                                  ,I
                                                      !Signature 3/12/2019 'i,2. Ctt~\ s To"rtE:2.

Date ANII Review w~fl-Y L.r .J:C

                                                                                                                                          /W
                                                                                                                                                       ~ - (: ,,.
                                                                                                                                                   ~ature I

[J.;.,/1"" 3*2.2.*l"'j

                                                                                                                                                                             / {)
                                                                                                                                                                           ?/2J7/y Date Additional - UT Indication Data <Edit From1Setup>

UT Calibration/Examination m

s
                                                                                                                                ~

0 tn C: 151

                                                                                                                                ~

2004 Ed!llon  :;o I w ID RC Con,pon,mt ID 1;1ll50-WMK5-010lAM I IJ*RC-421 l

                   !!llngl11 5iderl t1111trum1n1 51111ing~                                                        Snrch Unit 14072:11107                           :~,r'!nr11 r.u:1.:                  !llOl:11 M,,r'i;'lae1urrr                          GE Mcdd:          [;POCH !100                                  *001          Si7<"'.             ,375" 4J}OO                                 vr                        2..2!\MHZ                         NfA tl,U:rn               Pul~M                                                   ,ir;*

O~mpln1;r, 400 O~l-1 Auto 1:rr:iq .. :us S,r1 P:,,rit 0.23" fi.S.IIJ) PUl!Wlli'!O 51nQlt NIA 400 G11icr: NJA Round 1*:nnli**n;r Cf;!

                                                                         \

1

                                                                            ,'~di::Jt? 51\,J("l~               l!.ISWQC 211                     qff'll
                                    " ,;,! ___s_o_u_n_d_P_111_h_ _

C11hbmtlon Blo,ck

.::rd. L\io,:k 05.051'1 ThiC!l(n©n
                ------                                   0 II

UT CaUbration/Examination m

J

(') 0 en C: IS! ~

                                                                                                                                                                 ;;a 2004 Edition                                                                                                        .....

I 120!10*WMK5-0Hl:!AH c..> Corrpannnt ID* 120!10-WMK!--010:JAH / ll-RC-111 / l l:lln1iJll>> 5l1hid ln11trum1n1 S~lllngl\l S1urn:1> unit S rial No. 140713507 SIOl29 Mi!f\"411:lctUr<or: Olympum GE EPOCH IJOO

                          !J.!100                                                          2.2!1 MHZ                    "*i:-q.;         NJA 0.12lll                      Pu>iar1r     Squ,irw     !=x11r1 ,'-!'\JI'!!:     60'       S,;1J1nt 1\nolo.         NJA 40!1                     C:e10s:         o~1;~                                                            Shanr H' ..Q,. 2.25       Exit Pf;u*'""*        {l.10"            nf C°'.'T"H';ft~tf, Moo!'*                                                                                      Eicll'.'.ll fullw~v*                          Sing!~            F1;,t1Jt_;,,.

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

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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. Scan Exam Weld Line No. Enclosure Exam 1 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 1N316L 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 1N316L 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 1N316L 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].

Serial No.: 21-087 Docket No.: 50-339 Attachment Page 30 of 68 5.R2 BURDEN CAUSED BY COMPLIANCE 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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EL VALVE EXAMINED 100~ Of HIE HEOOIRED VOLUME ELBOW SIDE [XAAIINUl 0, 27 SO, IN, BEST EFFORT AX DIR . 27 / 46 = NO FXAM V/\lVI: SIDE AX DIR. 0. 19 SO. IN L~,11nlnatlo11 VohJme Olme11~1or15 IMghl 0.4" 40, 1" Width Cover.ige Summary 1-----.---H-eq_u_l-re_d_S_ca-,-,s-(e_a_c_h_h_as-aWelgliTn_g_f_ac-10...r_o_f_l_OO_fo_r_c_o_m_p_le-le_c.o_v_e~,a-g-e)-.-----' ANGLE UpSt-Chc DnSl*AX DnSl-Clrc 100% !00% 0% GOL *59% Cocfo Coverage Total 1001100tS9~0"259/4007 ,647S " Best Effort Coverage (Mai< 25%) Total Notes: l} Codi, Cowuagt* rnfm~ lo lht> ma:dmum p1.>t<;ent11ge of thr re-r1ulred <'Xatnlnation volume llrnl Is. eUNtlvl'iy r>>,nnlriPd with ll1P quallflcd e:-:.amlnaHofl proct>rlur~. 2l Bt*~I Effort Covt*r.:ig1* 1vfm, to flw rnqutrPd f!X,1rrdn,11/rm volum!' pa~I the WPld C!'flletlinl:' thal Is eiutroined In the axial bl'am direction with ,m App1mdlx VIII demons1rati:9 p1occdure for singlf! !i.ldl:!d tmre1ag1*

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. Scan Exam Wela Line No. Enclosure Exam 1 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.

Serial No.: 21-087 Docket No.: 50-339 Attachment Page 46 of 68 6.R3 PROPOSED ALTERNATIVE AND BASIS 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 R3-3 Serial No.: 21-087 Docket No.: 50-339 Attachment Page 63 of 68 Supplemental Report UT-20 -001 IND 1

Enclosure R3-3 Serial No.: 21-087 Docket No.: 50-339 Attachment Page 64 of 68 Hq1ml Nu: Ill JO 00/

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Wertman, Justin C/';V 9/1712020 vJ l. .--r:ia Ar N:::, 1,::, ---rr;: 9 - q  ?'  ? __,4~ t u r n

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Examiner Leve! 11-P6f Signature Date Stte Review ' D(.1e Coburn, Timothy M. 911712020 .""t"rr

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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 C0111 p nrn 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.: NIA Smml No.: NIA l1lummalio11: NIA fom11. Tool MftJ. NIA NIA --'-N/"""A_ _ 'F Resohiliorr o,044~ Chim1ctor Card Lill Blocl-. Seti<1l No.: MT-40 Suri,,cn Coodltio11: Groilnd Smooth Lo.'Wo Location: *roe / Wold Center Lino Fl n Id Onent;,tion: 0190" Fiold Orientation Magnotle P.irtlclo Matorl.:il W,;11 I Br,.md MAGNAflUX Dry l\11 Yr:'fi II Appcliud l:ly 1ype #2 Yellow Vi'1ib!o htl Nn 1 Sf.11H)'1flu I Act!c.hNo.: 18H017 Fluor,,sr:enl i l W11h: NIA rlootiinq I [qtl!f.1411<'.Jtll MAGNAFLUX Smlal N1J 3400 Hr,,1d Shot I I NIA Atnp,crns flxt"<I Spi!<:Jn'[) 1\r: Yi DC I

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Serial No.: 21-087 Docket No.: 50-339 Attachment Page 67 of 68 7.0 DURATION OF PROPOSED ALTERNATIVE 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 10].

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)}}