ML16131A635

ASME Section XI Inservice Inspection Program Relief Requests for Limited Coverage Examinations Preformed in the Fourth 10-Year Insevice Inspection Interval

ML16131A635
Person / Time
Site:	Surry
Issue date:	05/05/2016
From:	Mark D. Sartain Virginia Electric & Power Co (VEPCO)
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
16-146
Download: ML16131A635 (133)

Text

VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 U.S. Nuclear Regulatory Commission Attention:

Document Control Desk Washington, DC 29555 May 5, 2016 VIRGINIA .ELECTRIC AND POWER COMPANY SURRY POWER STATION UNIT 2 ASME SECTION XI INSERVICE INSPECTION PROGRAM Serial No. NLOS/GDM Docket No. License No. 10 CFR 50.55a 16-146 RO 50-281 DPR-37 RELIEF REQUESTS FOR LIMITED COVERAGE EXAMINATIONS PERFORMED IN THE FOURTH 10-YEAR INSERVICE INSPECTION INTERVAL Virginia *Electric and Power Company (Dominion) performed inservice inspection (ISi) examinations at Surry Power Station Unit 2 for the fourth 10-year ISi interval that began on May 10, 2004 and ended on May 9, 2015. As indicated by the interval end date, a one year interval extension was applied as allowed by ASME Section XI IWA-2430(d).

During the inspection interval, certain inspected components received less than the required examination coverage due to physical obstructions and limitations imposed by the original design and the geometry of construction.

Accordingly, pursuant to 10 CFR 50.55a(g)(5)(iii), Dominion requests relief for the limited component examinations on the basis that the required examination coverages were impractical due to physical obstructions and limitations imposed by design, geometry, and/or materials of construction of the subject components.

The specific relief requests, including the technical basis for each request, are provided in Attachments 1 through 8. These relief requests have been reviewed and approved by the station's Facility Safety Review Committee.

If you have any questions or require additional information, please contact Mr. Gary D. Miller at (804) 273-2771.

Sincerely, Mark D. Sartain Vice President

-Nuclear Engineering Commitments made in this letter: None Attachments:

Serial No.16-146 Docket No. 50-281 Relief Requests -Fourth ISi Interval Limited Coverage Examinations Page 2 of 3 1. Relief Request LMT-R01, Category R-A, Class 1 Stainless Steel Risk Informed Welds 2. Relief Request LMT-SS01, Category C-F-1, Stainless Steel Pipe Welds 3. Relief Request LMT-CS01, Category C-F-2, Carbon Steel Pipe Welds 4. Relief Request LMT-P01, Category C-F-1 and R-A Preservice Pipe Welds 5. Relief Request LMT-C01, Category B-B, Pressurizer Shell to Head Circumferential and Longitudinal Welds 6. Relief Request LMT-C02, Category B-D, Pressurizer Nozzle Inner Radius Section 7. Relief Request LMT-C03, Category C-C, Main Steam Integral Attachment H001-1 8. Relief Request LMT-C04, Category C-C, Main Steam Integral Attachment H001-2 cc: U.S. Nuclear Regulatory Commission, Region II Marquis One Tower 245 Peachtree Center Avenue NE, Suite 1200 Atlanta, Georgia 30303-1257 NRC Senior Resident Inspector Surry Power Station Serial No.16-146 Docket No. 50-281 Relief Requests -Fourth ISi Interval Limited Coverage Examinations Page 3 of 3 Ms. K. R. Cotton Gross, NRC Project Manager -Surry U. S. Nuclear Regulatory Commission One White Flint North Mail Stop 08 G9A 11555 Rockville Pike Rockville, Maryland 20852 Dr. V. Sreenivas, NRC Project Manager -North Anna U.S. Nuclear Regulatory Commission One White Flint North Mail Stop 08 G9A 11555 Rockville Pike Rockville, Maryland 20852 Mr. R. A. Smith Authorized Nuclear Inspector Surry Power Station Attachment 1 RELIEF REQUEST LMT-R01 EXAMINATION CATEGORY R-A Serial No.16-146 Docket No. 50-281 RISK INFORMED PIPING WELDS ON STAINLESS STEEL PIPING Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Dominion Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 1 of 27 4th 10-Year lnservice Inspection Interval , May 10, 2004 -May 9, 2015 Risk Informed Pipe Welds Stainless Steel: Non-Alloy 600/82/182 Relief Request LMT-R01 Repetitive/Duplicate Relief Requests in Accordance with 10 CFR 50.55a(g)(5)(iii) lnservice Inspection Impracticality

1. ASME Code Components Affected ASME Code Class: Examination Category:

Item Numbers: Component Identification:

Material:

Code Class 1 R-A, Risk Informed Piping Examinations R1 .11, Elements Subject to Thermal Fatigue R 1.16, Elements Subject to lntergranular Stress Corrosion Cracking Refer to Specific Table Refer to Specific Table 2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement The examination requirements for piping welds for the Surry Power Station Unit 2 (SPS2) fourth 10-year inservice inspection (ISi) interval were governed by the Risk Informed (RI) lnservice Inspection Program as proposed by the Virginia Electric and Power Company letter dated May 13, 2004 (Serial No.04-272), "Virginia Electric and Power Company, Surry Power Station Unit 2, ASME Section XI Fourth lnservice Inspection (ISi) Interval Update Risk Informed lnservice (RI-ISi) Program," and approved by NRC letter dated August 8, 2005 (Serial No.05-555), "Surry Power Station, Unit 2 -American Society of Mechanical EngineersSection XI Informed lnservice Inspection Interval Update for the Fourth 10-Year Interval." The Serial No.16-146 Docket No. 50-281 Relief Request LM;T-R01 Attachment 1; Page 2 of 27 SPS2 fourth interval Risk Informed (RI) Program is applicable to Class 1 pipe welds only. The pipe welds addressed by the Risk Informed Program are assigned to a specific segment with common system, operating conditions and failure mechanism.

The number of welds per segment varies. The welds discussed in this section were selected for volumetric examination by the Risk Informed Program due to the assigned item numbers: R1 .11 for thermal fatigue or R1 .16 for intergranular stress corrosion cracking (IGSCC). Neither the approved relief request nor the NRC Safety Evaluation for the Risk Informed Program addressed an alternative for limited examination coverage.

Therefore, the rules for ASME Section XI shall apply when limitations are encountered due to the design, geometry and materials of construction of the component.

The alternative requirements of ASME Section XI, Code Case N-460, approved for use in Regulatory Guide 1.147, Rev.17, allows credit for essentially 100% coverage of the weld provided greater than 90% of the required volume has been examined.

10 CFR 50.55a(b)(2)(xv)(A) requires the following examination coverage criteria when applying Supplement 2 to Appendix VIII: (1) Piping must be examined in two axial directions and when examination in the circumferential direction is required, the circumferential examination must be performed in two directions, provided access is available

.... (2) Where examination from both sides is not possible, full coverage credit may be claimed from a single side for ferritic welds. Where examination from both sides is not possible on austenitic welds ... , full coverage credit from a single side may be claimed only after completing a successful single-sided Appendix VIII demonstration using flaws on the opposite side of the weld .... 10 CFR 50.55a(b)(2)(xvi)(B) requires that examinations performed from one side of a ferritic or stainless steel pipe weld must be conducted with equipment, procedures, and personnel that have demonstrated proficiency with single-side examinations.

To demonstrate equivalency to two sided examinations, the demonstration must be performed in accordance with the requirements of Appendix VIII, as modified by 10 CFR 50.55a(b)(2)(xvi)(B) and 50.55a(b)(2)(xv)(A).

4. Impracticality of Compliance Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 3 of 27 Pursuant to 10 CFR 50.55a(g)(5)(iii), relief is requested from the essentially 100% volumetric examination coverage requirements for the subject austenitic welds due to the geometric configuration that limits the volumetric coverage that can be obtained.

When the examination area is limited to one side of an austenitic weld, examination coverage does not comply with 10 CFR 50.55a(b)(2)(xv)(A), proficiency demonstrations do not comply with 10 CFR 50.55a(b )(2)(xvi)(B), and full coverage credit may not be claimed. The subject welds were examined with a manual ultrasonic (UT) technique using pulse echo ultrasonic instruments and search units to achieve the maximum examination coverage practical.

Personnel, equipment and procedures were qualified in accordance with ASME Section XI, Appendix VIII, as implemented by the Performance Demonstration Initiative (POI). There are currently no POI qualified single-side examination procedures that demonstrate equivalency to two-sided examination procedures on austenitic piping welds. *current technology is not capable of reliably detecting or sizing flaws on the far side of an austenitic weld for configurations common to U.S. nuclear applications.

POI Performance Demonstration Qualification Summary (PDQS) certificates for austenitic piping list the limitation that single-side examination is performed on a best effort basis. The best effort qualification is provided in place of a complete side qualification to demonstrate that the examiners' qualification and the subsequent weld examination are based on application of the best available technology.

Refracted longitudinal (RL) wave was typically used to investigate the far side of the weld to the greatest extent possible if the thickness of the pipe was greater than 0.5 inches. For piping 0.5 inches in thickness or less, a 70 degree sheer wave examination angle is used to interrogate the far side of the weld. Any indications seen with the RL or the additional angle used would have been noted and investigated.

The required examination volume of these welds was interrogated ultrasonically to the maximum extent possible.

No alternative techniques or advanced technologies were considered feasible and/or capable of obtaining complete coverage of the examination volume.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 4 of 27 a. The 1-13 welds are the pipe to cold leg loop stop valve welds from the three reactor coolant pumps (RCPs). The pipe to valve configuration confines meaningful ultrasonic examination to one side only. Additionally, an identification plate restricts examination on the three pipe loops. This plate is depicted in Figures 4a2, page 2 of 2, and 4a3, page 2 of 3. Details are provided in Table 4a. The 1-13 welds fall within High Safety Significance (HSS) RI segments RC-010, RC-011, and RC-012 for Reactor Coolant System (RCS) Loops A, B and C, respectively, with a postulated failure mechanism of thermal fatigue. One sample weld (1-13) is required for each of the three segments.

Only one alternate weld exists on each of the individual segments, weld 1-12, which is the RCP to pipe weld. The UT scanning area would again be restricted to one side of weld 1-12 due to the pump to pipe configuration and would provide approximately 50% coverage similar to the 1-13 weld coverage.

Due to the excessively high dose rates in this area, it is not practical to attempt examination of welds 1-12, which would offer at best only 50% coverage.

The similar Surry Unit 1 RCP to pipe 1-12 welds were examined on these segments in accordance with the Unit 1 Fourth Interval Risk Informed Program with only 48% coverage obtained for each weld. There were no recordable indications (NRI) for any of the three 1-13 welds examined.

TABLE 4a -Reactor Coolant Pipe to Valve Welds Drawing I Line#/ ID Weld Limitation I Item I Pipe Pipe Thickness Coverage Results I Fig. System I Material Dia. (Nominal)

Achieved Comments Risk Informed Segment 49.5% (UT) 11548-WMKS-RC-10-1 I 21% (UT Best 27.5"-RC-309-2501 RI ASTM Effort) Single-1-13R1.11/

A-376, 27.5" 2.375" 45 degree sided, pipe 4a1 Reactor Coolant I shear wave to valve I Segment RC-012 Type 316 used,60 NRI "C" Loop degree RL also used 49% (UT) 11548-WMKS-RC-11-1 I 23% (UT Best 27.5"-RC-306-2501 RI ASTM Effort) Single-1-13R1.11/

A-376, 27.5" 2.375" 45 degree sided, pipe 4a2 Reactor Coolant I shear wave to valve I Segment RC-011 Type 316 used,60 NRI "B" Loop degree RL also used Drawing I Line#/ ID Weld Item/ Pipe Pipe Thickness System I Material Dia. (Nominal)

Risk Informed Segment 11548-WMKS-RC-12-1

/ 27.5"-RC-309-2501 RI ASTM A-1-13R1.11/

376, Type 27.5" 2.375" Reactor Coolant I Segment RC-010 316 "A" Loop Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 5 of 27 Limitation I Coverage Results I Fig. Achieved Comments 47% (UT) 24% (UT Best Effort) Single-45 degree sided, pipe 4a3 shear wave to valve, used,60 NRI degree RL also used b. The pipe welds discussed in this section were examined volumetrically by UT for thermal fatigue concerns (Item R1 .11). Weld 2-35 was also examined for IGSCC. Pipe weld description, examination and limitation descriptions are provided in Table 4b. Segment ECC-008 Weld 1-11 was fully UT examined with NRI in addition to weld 1-12BW. The portion of weld 1-12BW that was examined also revealed NRI. The five remaining*

welds assigned to this segment are Class 1, 2" socket welds and are covered by the VT-2 pressure test performed every refueling outage. Segment RC-051 Weld 2-35 was examined with limited coverage as shown in Table 4b. This weld was also examined as part of the Augmented Program (AUG) for sensitized stainless steel as required by the Surry Technical Specifications (TS 2.1.1) and received a surface examination with NRI. In addition, the following welds on segment RC-051 were examined during the fourth interval:

• Weld 2-29 on line no. 4"-RC-315-1502; 100% RI ISi (also examined for AUG TS 2.1.1)

• Weld 2-30 on line no. 4"-RC-315-1502; 100% RI ISi (also examined for AUG TS 2.1.1 and received a PT examination)

• Weld 2-33 on line no. 4"-RC-315-1502; 100% RI ISi

• Weld 2-34 on line no. 4"-RC-315-1502; 100% RI ISi (also examined for AUG TS 2.1. 1 and received a PT)

Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 6 of 27 This segment was reassessed as Low Safety Significance (LSS) in Period 2; consequently, ISi examination requirements were terminated.

Weld 2-35 continues to be addressed in the sensitized stainless steel Augmented Program (AUG TS 2.1.1 ), as do many of the welds assigned to this segment. None of the examinations revealed recordable indications.

TABLE 4b -Risk Informed Pipe Welds, Stainless Steel Drawing I Line#/ ID I Item/ Pipe Pipe System I Material Dia. Risk Informed Segment 11548-WMKS-0127 J1 I Stainless 2-Sl-274 / Steel 1-12BW I R1.11 / ASTM-2" Safety Injection I 376-Segment ECC-008 TP316 11548-WM KS-0125A 1 I 4-RC-315 / Stainless 2-35 / Steel R 1. 16/R 1 . 11 I ASTM-4" Reactor Coolant I 376-Segment RC-051 TP316 c. The pipe welds addressed in thermal fatigue (Item R 1.11 ). referenced figures. Weld Limitation I Thickness Coverage Results/ Fig. (Nominal)

Achieved Comments 75% (UT) Single sided, pipe 0.343" 5% (UT to reducer I 4b1 Best Effort NRI UT-single sided, pipe to nozzle I NRI I 50% (UT) pr.: NRI I 0.438" 32.4% (UT Also part of the 4b2 Best Effort) sensitized stainless steel Augmented Program this section were ultrasonically examined for Details are provided in Table 4c and in the The pipe lines discussed in this section are currently analyzed and inspected under the guidelines of the Materials Reliability Program (MRP-146) for the management of thermal fatigue on normally stagnant non-isolable RCS branch lines. The MRP-146 Program is part of the Surry Augmented Inspection Program under which select welds and pipe areas receive periodic examination as required by the MRP guidelines.

The MRP-146 Program did not exist when the initial Risk Informed Program was developed for SPS2; therefore, no credit was allocated for the MRP-146 Program.

Segment ECC-005 Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 7 of 27 Welds 1-08 and 1-09 were examined to meet the requirements of the RI Program. Weld 1-08 was examined volumetrically with no coverage limitations.

Weld 1-09 was limited in coverage as shown in Table 4c. These are the only two welds on the segment. No indications were discovered on these welds. Segment RC-042 Examinations were performed on two welds on this segment, welds 1-02 and 1-03A on line 6-RC-319, both of which were limited as shown in Table 4c. Weld 1-03A was replaced in 2006 at which time a UT and PT examination were performed.

No indications were found during any of these exams. Segment RC-041 In addition to the limited coverage examination completed on weld 1-03, weld 1-048 on segment RC-041, line 6-RC-317, was examined and met complete coverage requirements.

The only remaining weld on this segment is a branch connection weld which would only provide limited coverage at best. There were no indications recorded during any of the examinations.

Segment RC-043 Welds 1-02 and 1-038 were examined on line 6-RC-320 with limited coverage as shown in Table 4c. The only remaining weld on this segment is a branch connection, weld 1-018C, which would only provide limited coverage at best. There were no indications recorded during any of the examinations.

Segment Weld 1-08 on line 6-RC-321 was examined with limited coverage.

The following welds on segment RC-018, line 6-RC-321, were also UT examined and met code required coverage:

welds 1-05, 1-06 and 1-07. There were no recordable indications noted on any examination.

Segment ECC-007 Welds 1-09 and 1-11 were examined with limited coverage as shown in Table 4c and Figures 4c8 and 4c9: The only remaining weld on this segment, weld 1-10, was successfully examined to meet code coverage requirements.

There were no recordable indications on any of these examinations.

Segment RC-017 Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 8 of 27 Branch connection weld 1-01 BC was examined with limited coverage as shown in Table 4c and Figure 4c10. The following welds on segment RC-017; line 6-RC-318, were also examined and met code coverage requirements:

welds 1-06, 1-07 and 1-08. There were no recordable indications noted on any of these examinations.

TABLE 4c -Risk Informed Pipe Welds, Stainless Steel, MRP-146 Drawing I Line#/ ID I Weld Limitation I Item Pipe Pipe Thickness Coverage Results I Fig. System Material Dia. (Nominal)

Achieved Comments Risk Informed Segment 11548-WMKS-0122H1/6-UT-single sided, ASME valve to pipe I RC-316 / 1-09 Spec 50% (UT) NRI I R1 .11 / SA376 6" 0.562" 12% (UT Analyzed as part of 4c1 Reactor Coolant Best Effort) Segment ECC-005 TP 316 Augmented Program MRP-146 11548-WMKS-0127 J2 I 6-UT-single sided, RC-319 / 1-02 ASME 50% (UT) elbow to weldolet I Spec NRI/ R1.11 / SA376 6" 0.562" 2.75% (UT Analyzed as part of 4c2 Reactor Coolant TP 316 Best Effort) Augmented Segment RC-042 Program MRP-146 11548-WMKS-0127 J2 I UT-single sided, 6-RC-319 / 1-03A ASME 50% (UT) valve to elbow I Spec NRI I R1 .11 I SA376 6" 0.562" 13% (UT Analyzed as part of 4c3 Reactor Coolant TP 316 Best Effort) Augmented Segment RC-042 Program MRP-146 11548-WMKS-0127J1

/6-UT-single sided, RC-317 / 1-03 ASME 50% (UT) elbow to nozzle I R1.11 / Spec 6" 0.562" 5.5% (UT NRI/ 4c4 Reactor Coolant SA376 Best Effort) Analyzed as part of Segment RC-041 TP 316 Augmented Program MRP-146 11548-WMKS-0127J3

/ 6-UT-single sided, RC-320 / 1-02 ASME 50% (UT) pipe to weldolet I Spec NRI I R1 .11 I SA376 6" 0.562" 14% (UT Analyzed as part of 4c5 Reactor Coolant TP 316 Best Effort) Augmented Segment RC-043 Program MRP-146 '

Drawing I Line#/ ID I Item Pipe Pipe System Material Dia. Risk Informed Segment 11548-WMKS-0127J3 I 6-RC-320 I 1-03B I ASME R1 .11 I Spec 6" Reactor Coolant SA376 Segment TP 316 11548-WMKS.:0122J1 I 6-RC-321 I 1-08 I ASME Spec R1.11 I SA376 6" Reactor Coolant TP 316 Segment RC-018 11548-WMKS-0122J1 I 6-RC-321 I 1-09 I ASME Spec R1.20 I SA376 6" Reactor Coolant Segment ECC-007 TP 316 11548-WM KS-0122J 1 I 6-RC-321 I 1-11 / ASME Spec R1.20 I SA376 6" Reactor Coolant Segment ECC-007 TP 316 11548-WMKS-0122K1-1 I 6-RC-318I1-01BC I ASME Spec R1.20 I SA376 6" Reactor Coolant Segment TP 316 5. Burden Caused by Compliance Weld Thickness (Nominal) 0.562" 0.562" 0.562" 0.562" 0:562" Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 9 of 27 Limitation I Coverage Results I Fig. Achieved Comments UT-single sided, 50% (UT) pipe to valve I 9% (UT NRI I 4c6 Best Effort) Analyzed as part of Augmented Program MRP-146 UT-single sided, 50% (UT) elbow to valve I NRI/ 6% (UT Analyzed as part of 4c7 Best Effort) Augmented Program MRP-146 UT-single sided, 50% (UT) valve to elbow I NRI I 6%(UT Analyzed as part of 4c8 Best Effort) Augmented Program MRP-146 UT-single sided, 50% (UT) valve to pipe I NRI I 11% (UT Analyzed as part of 4c9 Best Effort) Augrnented Program MRP-146 UT-single sided, 50% (UT) weldolet to pipe I NRI I 23.7% (UT Analyzed as part of 4c10 Best Effort) Augmented Program MRP-146 Compliance with the Code requirements would require extensive modification or replacement of components with a design that would allow full examination from both sides of the weld. This option to rebuild components is considered impractical and would cause unnecessary radiation exposure.

Furthermore, plant equipment could be impacted in a detrimental manner.

6. Proposed Alternative and Basis for Use Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 1 O of 27 The subject welds received a volumetric examination to the maximum extent practical utilizing the best available techniques. With the incorporation of the POI for Supplement 2, demonstration for best effort coverage was made for single-sided examination from the accessible side of the weld. Additionally, these components are monitored for through wall leakage as part of the ASME XI System Pressure Test Program and receive visual (VT-2) examination as required by Section XI, Table IWB-2500-1, Category 8-P for Class 1 components and IWC-2500-1 at the end of every refueling outage. None of the pipe or weld material is constructed with Alloy 600/82/182 materials; therefore, there are no primary water stress corrosion cracking (PWSCC) concerns.

In addition, there are no known through-wall failures on the welds discussed in this section at SPS2. Based on the volumetric coverage that was obtained with acceptable results, the routinely performed visual (VT-2) examinations, and the fact that multiple welds were examined on each risk informed segment, or, in the case discussed in Section 4.a where welds were examined on all three similar loops, it is reasonable to conclude that service induced degradation would have been detected.

Therefore, these proposed alternatives provide an acceptable level of quality and safety by providing reasonable assurance of structural integrity of the subject welds. Accordingly, Dominion requests relief in accordance with 10 CFR 50.55a(g)(5)(iii).

7. Duration of Proposed Alternative This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for SPS2, which began May 10, 2004 and ended on May 9, 2015.

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SUMMARY

Wel d !"l umbe r Wela Wel d l..el'lg lh W e ldWICftl'l M3 2.375" NOM SEE ATTACHED COVERAGE PLOT Examination Volume Dimensions

-Heigh t .7 83 .. l ength 84.78" Wi.<lth -* Coverage Summarv Required Scans (ea.ch has a weighing factor of 100 for gompleleroverage) 3" ANGLE UDSt-Ax UpSt-Circ On st.Ax OnSt-Circ

_, l 45 94.7% *-*. 94.7% 0% 60 '94.5.% -** .. Code Coverage Total I *Best Effort Coverage (Max 25%) Tota l I 24% Notes.: 1) C-Ode Coverage refera to the max imu m per cen lag.a o.f the required examination volume that Is effectively examined with the qua lied e.xami na lion proc e dure. 2) Effort Coverage refers to , lfle required examination vol u me past the weld centmi l ns that is examined i n lhe axial beam direction with an Appendix Vl 11 1 demonstraled omoedure for s i ng le sided_coveraae. M d iti.ooa l -S.upp i ame"'a1 D a te: n*n-c:o'f

'lo ,.,,. .. i.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 16 of 27 Report No: UT-1M.l5 Summary# S2.Rl.1L 1&6 .Pg,. 5 of 6 P*ce pared by: _ Carra oate: 1 1./16/ l L MH'l D1 Fi\g 4b 1 pa ge 1 o f1 WeldN mb r Th i dtl@SS 1-!2 B W D.lll Wft ld W i d th W eid l e ngth 0.4" ANG L E 45/60 70 US A't.itl. llkl¢ = !00% V<:J..JtOO *0.11(3 t;..___..::_,_*

He i ght 0.1 11 Ler.gth 1.$

1 00-% 100% 0% 1 00% I 75% Best Effort Cover a-se 25%} Tobi 1 5% ll Cede Coverage refers to t h e mo:xi m u m p;erc-en t.age of the teq u it'OO exami n ation 1;10!Umt; ft.at i! eff&fa*e ly ex.a m1n e d wf;tll the <iUGllfiot:.d proced ur e. B!!st £ffort Coverage refer:> w tile re q ufred exami" aticn vclume p,ast t h e; we l d centerf!t'ltt that t!)'.:lmfM i n the ax i a1 beam d rectkm wl 011 Appendix:

\In! dernonstr.ueo:

prooeduHt rc r strigr:e s i ded coYer air e.

Suppleme n ta l Repor t. Su m m" r y N o.: S2.RU6 l R1.11.057 Serial No. 1 6-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 17 of 27 R ep No.: L M T-RD'i F119 4b2 pilge 1 of 1 Uf.(}1 M15 -----P<:i ge: 2 of 2 E..X<l min e r; L.e s t o r, Robert M 1.evel: R&vi*Wi'lt;

_N_f A _____ _..,_....,.._ Exa m' e r: Poster, Harry E L e-\'el. It.POI Sit e Revie w:

.. O th e r: NfA La,*e l: !'#A A N lf Re i/f ew:

Co m m en t i;: Limitat i on du e t o pl po to nott l i o eo n f ig u ration_C ODE COV E RAGE*6 0 dtJgroe axia l Up$t.*100'1., a x r a l dn$f..* O"%ycw U p:li l-*100-Y.,cew u.p st..*1!00%, cw dnst.-0% afl d ccw dns t.*&%.

• . B:EST EF rOR T EXAM wno deg re e-32.4"1. ad d itlo mll co.verago on the fa r $I de. i:J5<<f t.trt. "le W . .f a<t: . ..........

--1 e c t.J -__ u /) !Y t.e It vn .. for. *. 'b trt:J JJ ! rM ;itn 'j -<f Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 18 of 27 ' .. . DOllHftlO...-

Weld Nt.imbe r We ld Thic kness 1-09 .5£2" Report No. Surnma,ry N-0. Pg , 4 o f. 4 Prepared By: Dat e: Weld L ength Weld Width U T-11--0 21 S2.R1.1Hl74 T RAV I S THOMAS 41.29.12011 22" 1.2:5"

• 1 t

• -* ' _! ' ' ' ... ._._,,, -'--'-"-'-'

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' J ' -* L.. J

• I ' ' . ' ' ' ' ... '.! () 2 vtl!.1:!

• '<IO f'H 1 a USN!l/\L $lllC 1(1(7i1; VO!.LME E7 AMN F,;0 = ll2!;Ql;'f'-£ll'Q'f.15 l!LB'I Hf<OI ... OOAX.O\l.SOC"'

t 7 SCU1' IN.

IY.\EX;IUOO A>>Al..SO!:*()i:>>S0."1 <IOH X Examination Volume D i me nsi ons -Height O.t87 lengfu 2.-0" Ccverooe Summarv Required Scans (e a ch has a ...-eighing facto r o f 100. fo r compfet:e.

coverage) Angle up-st.Ax UpSt.Ci r c l D nSt-Ax O n-St..cl re -**** 45 f 70 1 00% 0% 45160 1 00% (}% 70 BEST EFFORT e 12% Co d e Cove r age Total I 00.'1'1) --*

• Best Effort 25%) T o ta l 1 1 2% Notes; 1} Cod e Cov e rag e re fers t o the maximum required exam i nation volume lhat i s effective l y exami ne d wit h the qtJ.a l ified examination 2) Best fff'Ort etwersge r efers to lhe requ f red exam m ation vo l ume past tile 'Neid ce n teru n e that i s examined ln ttie ax'sal beam d i re c tion wi th an Append ix V III de monstrated procedure t o r sing le sjded coverage , rJJ u.tr-Ro1 Flg4¢1 page I of '1 Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 19 of 27 Weld Thickne.ss I 2 0.5S9" 0 WeldW1dth Weld Length 1 2

........ FL OW WELO OlET EL 0.1WHT X ll.8 5" WIDrn ,.fUS8 SQ.

E'OltXAM US AND 00 SIOE:S. );/;">,:';zo; 5:°<.l EXAUlt J EO lOO'#i. OF TfE h£01JIRED V O:..UM;.,, US S I D£ .....

"' Examlna:tiion vort1me Olmens l 0<n$ -Height tcngth 21.2 S" Width 1.7" Coverage Summary Required Scan$ {eac;h has a weigh i ng factor o f 100 for com p lete eowrage)* ANGILE 45,60 100% 100% 0% 60L Code cov,erage H>ta l I so% lOO+lOCH-0+11::o21,1}4='S:2:

.7S *Sm Effort Coverage (Max 25%) T ota l .. 1 2.7S% 1) Code CovC?tage re.l'l?'t$ to t he ma xlmum pe r ce nt ag e oftke req 1.Jlrerl e:xarn l natlc>ti vo l ume the t t?ff'e<:ti1Je f y e:Ma.mi n ed with th e q 1,2 a ti fi ed e xan lfla.tfon procerl u re. l) B est E ff o rt Co11erage refers to ttie re q u 1re d e:w:11minatlon

\IO l ume p a st t h e weld OOliterUM t h at ir; examined in the ax i a l beam di r ection with all Afr,pend i X \llJt demonst r ated p r tx:edure far singfo si d ed U.ITJR0*1 Ftg i 41::2 pag '1 1

?933 HSBGS Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 20 of 27 LMT-R01 Fig4G3 r;f 1 of 1 ti . . . "' * ... *** Dom1naon RQpOrt No: U T*l 4-058 . r/1:./1r Su mmary# S2.fll.11.950 Pg, 5 o f S ** rVP...,v P repa re d b y: W. .. Thom<11s _ . .--* ,,,.,. . -O S/0 1/201 4 W eld Nu mbe r 1-03A We l d Wi dth We l d lengt h lltid:n -S$ O.SSS" 1.9.6&" L 2. 2 Ft OW . .:.S:.: 0.195" HT .X .875" WIOTH = 0.1 7 SO. I N .. "'REQU IRED EXAM VQ.UME U S AND OS SIDES EXAMJNEO 100% 00 T HE OS SI DE -EXAMINED 0.09 SO. IN LIS SID E AX. Dl.RECTION BE:ST EFFOR T **.09/ .17

• 0.53X 100= 53%8EST EFFORT O I R. w NO EXJ\M I NAT I ON FOR 47% US SID E AX D I RECTION. f:!lal'll!ination Volum11: Olmer1$l<m5

-Hefe ht O.l9S" 19.68" Width 1.75" (overage Summary Req11ired Scal'\S: (ear;:h has a\!l!!i,Rhingfactor of 100 for rompl@t.e coverage)

ANGLE Up$.t-Ax UpSt-Clrc Dnst-Ax DnSt*C i n; 4S/60 0% 100% 100% 60L : mo+rno+s3+0=Z5 3/4=6 3% I 50% Notes: *Bert Effort Coverage (Max 25%) Total I lJ% 1) code ciover gc refers to *1he.

percentage Qf tlw requ i red ex.11mlna t l'Ofl volum& IJiat. ls eff>i!ltti\lely

'J1;ami:ned w i th tire qua l i fied examlnal!Otl procedure. 2} B!!st Effort Cove r.age refers to the ed exnmlnatJon pilst lhll' weld centet*IJne that i s examined i n the .a1<ia! beam dlrectloo v lit l'I an Append ix vm demorutrata-d procedure for single skied c.o**er;i:ge.

C-0mmenl;s

.. ANGLE 60RL Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 21 of 27 Sup*plemental R.eport Repo rt No.:

Fig 4o4 page I of 1 Page: 4 o f 5 COVERAGE

SUMMARY

WeJd Nurmber We l\l Weld Length Weld VV!dtll 1-03 .55 3" (.5 62" oom) 2 1" .m> OC>Veraae Summarv Reciurred

$Cans (eact1 has a weiah l rm factor of 100 for o:>mplet:e covemge) UpSt--Ax UpSt-Circ DnSt" Ax *011st-cl r¢ 10 0% 0% '22% Code Coverage Total I 50% *&nit .Effort Coverage (Max 25%) Totaf I 5.5% 1) Code Covera:gll refers lo the maximum .percentage of the required examination vo l ume that IS etreclillety exam1nec With the qualitl.ed examrnauo11 procedure. 2) Best Effort Coverage raf&"N!i lo tne r equired examination wlumc pa$.t the wetci* cenl:erfine that is examined i n the axia l beem d i rectkln with an Ap p endix VIII demonstrated procedure for sJna:ie sided coveotqe. Exam i nation Volume Dime.11$.lons

-Height .*f r 84" Length 21 Width '2" 1 00+ 1 00 +O +22 "'222 14 = 55.6%.

Repo rt o. S um mary N o. Pg. 5 o f. 5 Prepa rn d B y: Date: Ser i al No. 16-1 46 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 22 of 27 lJ T-11--007 S2.R1.11.21 0 TRA V I S TI-l O MA S 5 15 120 11 LMT-RD1 Fig 4t5 page 1 <>(1 Weld N u m ber Weld Tn i ckroeas t-02 .562" Weld L engt h Weld Wi d th 2 1 .6" .. I I.I l . .._ ........... .. 1 l i .. ._* ,,___,,__,_..__.___,_.

c ;i Tl>fOl'.JoQOSS. r.EASLIRfil l fi: N TS 0 2 SI £61.1' ,t;t Q' 5} N'R *-*

US AJ<lA1. Slbl!! 100% VO U.M 1i. E XPMNa:l "'U1 SCUo.RE ll'l:::t;ES BEST E: t'Om' OSAXIAL SI DC!:,.O.ot 00 J N "l'<<:>.l!X/IM ro AXlAL a CE *0.n w i th a n Append ix V III . \ \ \. ..._ ___ _...;d;.;.;em"'**"'"'o'"'"n.;;..s t ,;,.,;ra_.t en_* **_,o ,_ro1_ce<l __ u r_e_fo_r_s_i ng ... 1_,e_s_ide

____

' \

No tes:

Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 23 of 27 ' ' . . Report No. S1.1rnmary No , Pg. 5 of. 5 lJT-11-058 S2.R1.1 1.2 1 1 , Prepared By. Date: TRAVIS THOM AS 51'.>12011 Number Wel d TI1ickne<$S T--*-*t..., LLl.J 4i JlO\'!

1..038 0 Weld Lettg tn WeldW<rj'th 2 1..0" .6" *--...., I' " I, ,; .J "

BCST DI; I VQ'<L

.(t' SO. t

...

r ll, '-'

li:l EX/VA OSA>'lt>.t Sllit= a '\'I W. 111 ll til(l Examination Vo l ume Dime s iofls -rteigllt , 187" L e n gt h '21" W idth C<wetaae Summary Requi r e d Scans (each has a we igh i nll f acto r of 1 00 to r c omp lete coverage)

Angle IJoSt.Ctrc Dnst-Ax D n-S t*Clrc 45/60 1vu% 0% .45 1 60 100% 0% 00 BEST EFFORT "' 9% 70 BEST EFFORT"' 22% Code Coverage Total I ... Best Effort Coverage (Max 25%) T ota l I Noto11: 1) Code Coverage refers to the max imu m perce11tage or th e r equired exarriii i aU on vol ume t hat is effectively e xam t nlld witti the qua lifietl er.am fnatl oo proced u re'. 2.) a est Effort coverage refef:s to t he requ 1 r oo e,xa m mauon vo l um e pa s t the weld c e nter11n e that i s examined in t he axial beam dlrec!ion with an Appendix V III demonstrated D!'ocedure for sin<i;l e sided c ove raa e. 1.6" 5-0% 9"At .. L MT-RDI Fig4c6 µag e 1 *of *1 Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 24 of 27 S up p Jernental Re port lMI-R01 Fig4c7 Rep oi t No.: __ uT_-o_6.-_M_7_ Summary No.: EX<!ffii Jler: Cngo , Notrnart Level: IJ.POI Roviewer. E;o;amlnei:

TOi os k y , Ryan J . evel: llL Site R(ll.*few:

Olher: _N_IA ________ Low i l: NIA. AN ll ROl.liew: ........ Comments: lNeld N umb&r I ... (!)[!, Wald Th k;AAQ$$

• 1 We r o Le ngth /

• 1 *<:::* F!oW Box Dime miions

• H...._tL L 1. I. Code Coverage T o tal S-o /e> Bes t Effort Cov erage Total c /d \7alve...

(50% max) (50%-ma:o;)

Supplemental Repat1 .Su m mary No.: _s __ 2 ,_R1_._11_.oa __ J:_ .. Exam i n0 t:: C3Je, Norman Exam in er; Ryan J OthGt: N IA Weld N umber J ..:. c Weld Thick ness ... 4 .. leng!h 1!..P D I Le11ei: llL Level; NIA Flow ' di' . J Bo;>: D l mens io ns. i= H_._J_T_ " Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 25 of 27 L MT-R01 Figi4cS MiJe l*o f1 Roporl No.: __ _ P119ll: 2 or 2 Code Cov e r age T ota l Besl Effort Cov e rage T otal S'(:;)/ o t OO% max) 6 2'c (50% max)

Report No. Summary No. Pg. !i o f. 5 Pre p ared Sy: Date: Seria l No.16-146 Docket No. 50-281 Re l ief Request LMT-R01 Attachment 1 ; Page 26 of 27 UT-11..05$

S2.R1.1 1.085 IRAVIS THOMAS 5/312011 LMT-R01 Fig 4dl page of 1 Weld Nt1mber We d Thickne-s$

1-11 .562" Weld l e n gth We l d Wldth 21" i I '11 ,,,,.--***

• ---* <<)fl. i ./* -*--*-* --?llR. L-' / . _ __.,

..... ...... * .. *AJolALSI *. lt'IW.l<'.lll.h

• . F.XJ\: M ilR) 86S f EFR'.:IRr USA.Y.IM..an;:

c O,OSf'>Q. N

""""'J NO!!XMl US.N0/11. tll!o O.fOSO. IN O.IOIOd8=0.!lM>: TOT AL RI SK IN F O RM E D EXAllJ11NAl1 0N AREA= .3 2 SQUARE IN CHES Ex am i nation V olu me Dlrnenslorui

• Kel g ht L engi h W idtti Covera ae Summari -* Requ ire d Scans ( eacfl h as a weiah i no factor of 100 for com e le te coverage) A ng le U p.Sl*Ax Ups t-Circ D nSt-Ax Dn-St-C i rc 45160 0% --100% .. . -*** 45 160 0% 1 00% -60 BES T EFFORT"' 1 1% 70 B EST EFFORT"' 22% C ode Tota l r ... Sest E.ffofl C o verage (Max 25%) Total I 'Notes: 1} C ode C o v e ra ge ra ters to the maxim u m percentage o f t he required ex<1m l natlon I vo ume t hat Is e!fectlv el)* e x a m i ned wit h the q ual i fie d exami na ti o n p r o ce d ur e. ! 2) B es t E ttort C o verag.e r e f e rs to th e re qu ired exa m ination vot u me pas t t he we l d i ce n terl i ne t hat i s exa mi ned in the a xial b eam d 1reotbn wit h a11 Appern:l lx VI II d emoostrate d oroce du r e tor s.inn tn* sided coveraae. 1 6" 11%

Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 27 of 27 Report N o: U T*1 4-068c Su mmary It S2.Rl.1L086 P g. 4 o f 4 l'ropared b11: W. T horn;;l's Da t e: OS/0 5/20 14 lMT-ROI F'1g'l>cl0 page 1 of1 We l d N umber Th i cl:nes s 1.925" Weld W i d t h W e ld L e n gth J l rr' l f.xatn l n atio:n Vo l um e

• Height 0.642" length 30.5" Width 2.6" Coverage Summary Requir ed Sca ns feach has a weigh i ng facto r of 100 for complete co ver;;1ge)

ANGLE U pSt-Ax Upst-C i rc: DnSt-Ax OnSt..C lrc 45,60 100% 100% 0%. 60 "94.7% 100+ 100+94.7 +0"2 94. 7 /*" 7 3. 7 Code Cove r ag e Total I so% Not.es: *BEst Effort Coverage (M ax 25%) Total I 23.7% 1) C ode Cove r age refers to the maximum pe r centage of the re<i u lred eJt.amlMUM

• 1oh.1me that i s effectivdy exam in ed with the q u afified exanJill<ltior>

proced u f"e. 2) Best Effort C overage r efe rs to the r eqv lr ed ex11m l Mt l o n past the weld tha t ii exa m i ned In the a xi al bea m d i rection w!th a n A1$P en d'lx \Ill! dem ons tr a ted] p rc ccd u 1c for s i<l:ed *1933 HSB GS Attachment 2 RELIEF REQUEST LMT-SS01 EXAMINATION CATEGORY C-F-1 PIPING.WELDS ON STAINLESS STEEL PIPING Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Dominion Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 1 of 55 4th 10-Year lnservice Inspection Interval May 10, 2004-May 9, 2015 Stainless Steel Pipe Welds: Non-Alloy 600 I 82 / 182 Relief Request LMT-SS01 Repetitive/Duplicate Relief Requests in Accordance with 10 CFR 50.55a(g)(5)(iii) lnservice Inspection Impracticality

1. ASME Code Components Affected ASME Code Class: Examination Category:

Item Numbers: Code Class 2 C-F-1, Pressure Retaining Welds in Austenitic Stainless Steel High Alloy Piping C5.11, Circumferential Welds: Piping Welds ?_3/8 in. (1 Omm), Nominal Wall Thickness for Piping >NPS 4 (ON 100) C5.21, Circumferential Welds: Piping Welds >1/5 in. (5mm), Nominal Wall Thickness for Piping ?.. NPS 2 (ON 50) and NPS 4 (ON 100) Component Identification:

Refer to Table 4a Material:

Refer to Table 4a 2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement ASME Section XI, Examination Category C-F-1, Items C5.11 and C5.21, require 100 percent (%) volumetric (UT-ultrasonic) and surface examination (PT-liquid penetrant) coverage for circumferential piping welds. The alternative requirements of ASME Section XI, Code Case N-460, approved for use in Regulatory Guide 1.147, Rev. 17, allows credit for essentially 100% coverage of the weld provided greater than 90% of the required volume or area has been examined.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 2 of 55 The Unit 2 Risk Informed Program does not apply to ASME Section XI Class 2 components discussed in this relief request. 10 CFR 50.55a(b)(2)(xv)(A) requires the following examination coverage criteria when applying Supplement 2 to Appendix VIII: (1) Piping must be examined in two axial directions and when examination in the circumferential direction is required, the circumferential examination must be -performed in two directions, provided access is available

.... (2) Where examination from both sides is not possible, full coverage credit may be claimed from a single side for ferritic welds. Where examination from both sides is not possible on austenitic welds ... , full coverage credit from a single side may be claimed only after completing a successful single-sided Appendix VI 11 demonstration using flaws on the opposite side of the weld .... 10 CFR 50.55a(b)(2)(xvi)(B) requires that examinations performed from one side of a ferritic or stainless steel pipe weld must be conducted with equipment, procedures, and personnel that have demonstrated proficiency with single-side examinations.

To demonstrate equivalency to two-sided examinations, the demonstration must be performed to the requirements of Appendix VIII as modified by this paragraph and §50.55a(b)(2)(xv)(A).

4. Impracticality of Compliance Pursuant to 10 CFR 50.55a(g)(5)(iii), relief is requested from the essentially 100% volumetric examination coverage requirement for austenitic piping welds with side access. The subject welds were examined with a manual ultrasonic technique using pulse echo ultrasonic instruments and search units to achieve the maximum examination coverage practical.

Examinations were performed using personnel, equipment and procedures qualified in accordance with ASME Section XI, Appendix VIII as implemented by the Performance Demonstration Initiative (POI). There are currently no POI qualified single-side examination procedures that demonstrate equivalency to two-sided examination procedures on austenitic piping welds. Current technology is not capable of reliably detecting or sizing flaws on the far side of an austenitic weld for configurations common to US nuclear applications.

POI Performance Demonstration Qualification Summary (PDQS) certificates for austenitic piping list the limitation that single-side examination is performed on a best Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 3 of 55 effort basis. The best effort qualification is provided in place of a complete side qualification to demonstrate that the examiners' qualification and the subsequent weld examination are based on application of the best available technology.

Refracted longitudinal (RL) wave was typically used to investigate the far side of the weld to the greatest extent possible if the thickness of the pipe was greater than 0.5 inches. For piping 0.5 inches in thickness or less a 70 degree sheer wave examination angle is used to interrogate the far side of the weld. Any indications seen with the RL or the additional angle used would have been noted and investigated.

When the examination volume is limited to one side of an austenitic weld, examination coverage does not comply with 10 CFR 50.55a(b)(2)(xv)(A), proficiency demonstrations do not comply with 10 CFR 50.55a(b)(2)(xvi)(B), and full coverage credit may not be claimed. The ASME code required volume of these welds was interrogated ultrasonically to the maximum extent possible.

No alternative methods or advanced technologies were considered capable of obtaining complete coverage of the examination volume. Since the configuration of the piping limits access to a single side, relief is requested on complying with the essentially 100% required examination coverage for the piping welds listed in Table 4a. Note that the examination coverage listed is that which was obtained during the examination with no credit taken for the far side of each weld in which the examination from that side could not be performed.

Supplemental scanning was performed to provide additional best effort (non-code) coverage as documented in the table and figures. Surface examinations were performed in addition to the volumetric examinations except where Code Case N-663, "Alternative Requirements for Classes 1 and 2 Surface Examinations," was determined to apply. Table 4a indicates if a surface exam (PT) was performed, the coverage achieved, and the examination results. Where indicated in Table 4a, welds are also inspected as part of the SPS Augmented Inspection Program and will continue to be governed by these noted inspection programs.

Drawing I Line# / ID Item System 11548-WMKS-Sl-1 I 12-Sl-201 I 0-03 I C5.11 Safety Injection 11548-WMKS-Sl-1 I 12-Sl-201 I 0-05 C5.11 Safety Injection 11548-WMKS-Sl-1 I 12-Sl-202 I 0-13 C5.11 Safety Injection 11548-WMKS-Sl-1I12-Sl-202 I 0-16 C5.11 Safety Injection 11548-WMKS-Sl-10 I 3-Sl-270 I 0-08 C5.21 Safety Injection TABLE 4a Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 4 of 55 (*No Best Effort Examination Recorded)

Pipe Pipe Weld Coverage Limitation I Material Dia. Thickness Achieved Results I Fig. (Nominal)

Comments UT -one sided and interference with grout, elbow to valve I ASME Spec. 19% (UT)* NRI I SA 312 TP 12" 0.375" PT -no coverage 4a1 304 80% (PT) in area of 23" to 31"dueto proximity to concrete wall I NRI UT -one sided and interference with grout, valve 38% (UT) to tee I ASME Spec. NRI I SA 312 TP 12" 0.375" 3.5% (UT PT -no coverage 4a2 304 Best Effort) in area of 24" to 77.5% (PT) 33" due to proximity to concrete wall I NRI 46% (UT) UT -one sided, ASME Spec. 12" 0.375" 4.33% (UT elbow to valve I 4a3 SA 312 TP Best Effort) NRI/ 304 100% (PT) PT INRI ASME Spec. 39.5% (UT) UT -one sided, SA312 12" 0.375" 0%(UT tee to valve I 4a4 TP304 Best Effort) NRI I 100% (PT) PT INRI UT -one sided, ASME Spec. 85.5% (UT) elbow to tee I NRI I CC N-663 SA312 3" 0.438" 14.5% (UT applied, no 4a5 TP304 Best Effort) surface exam required.

Weld Drawing I Line# / ID Pipe Pipe Thickness Item Material Dia. (Nominal)

System 11548-WMKS-Sl-12A I ASME Spec. 0.438" 3-Sl-272 I 2-08B I SA312 3" C5.21 / TP304 Safety Injection 11548-WMKS-Sl-12A I ASME Spec. 3-Sl-272 I 2-09A I SA312 3" 0.438" C5.21 / TP304 Safety Injection 11548-WMKS-Sl-15

/ ASME Spec. 3-Sl-346 I 0-02 I SA312 3" 0.438" C5.21 I TP304 Safety Injection 11548-WMKS-Sl-15

/ ASME Spec. 3-Sl-346 I 0-03 I SA312 3" 0.438" C5.21 I TP304 Safety Injection 11548-WMKS-Sl-16"/

ASMESpec.

3-Sl-347 / 2-01 I SA312 3" 0.438" C5.21 /

• TP304 Safety Injection 11548-WMKS-Sl-18

/ ASME Spec. 3-Sl-347 I 0-19 / SA312 3" 0.438" C5.21 I TP304 Safety Injection 11548-WMKS-Sl-2 I ASME Spec. 3-Sl-270/1-12

/ SA312 3" 0.438" C5.21 / TP304 Safety Injection 11548-WMKS-Sl-37 I ASME Spec. 16-Sl-205 I 0-021 SA312 16" 0.375" C5.11 I TP304 Safety Injection Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 5 of 55 Limitation I Coverage Results I Fig. Achieved Comments 50% (UT) UT -one sided, 22.5% (UT pipe to valve I 4a6 Best Effort) NRI I 100% (PT) PT INRI 50% (UT) UT -one sided, 20.5% (UT valve to pipe I. 4a7 Best Effort) NRI I 100% (PT) PT INRI 50% (UT) UT-one sided, 19.5% (UT reducer to valve I 4a8 Best Effort) NRI I 100% (PT) PT INRI 50% (UT) UT -one sided, 22% (UT valve to pipe I 4a9 Best Effort) NRI I 100% (PT) PT INRI UT -one sided, 50% (UT) reducer to valve I NRI I CC N-663 4a10 22% (UT applied, no B.est Effort) surface exam required UT -one sided, 50% (UT) pipe to valve I NRI I CC N-663 4a11 16.7% (UT applied, no Best Effort) surface exam required UT-one sided, 43% (UT) pipe to valve I NRI I CC N-663 4a12 10.6% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) valve to elbow I 14% (UT NRI I 4a13 Best Effort) PT INRI 100% (PT)

Weld Drawing I Line#/ ID Pipe Pipe Thickness Item Material Dia. (Nominal)

System 11548-WMKS-Sl-4 I ASME Spec. 12-Sl-205 I 0-15 I SA312 12" 0.375" C5.11 / TP304 Safety Injection 11548-WMKS-0117A1-1 ASME Spec. 0.438" / 14-RH-102

/ 2-15 SA358 14" C5.11 TP304 Residual Heat Removal 11548-WMKS-0117A1-1 ASME Spec. 14-RH-118

/ 2-25 / SA358 14" 0.438" C5.11 / TP304 Residual Heat Removal 11548-WMKS-0117B1

/ ASME Spec. 12-RH-112

/ 2-06A I 12" 0.375" C5.11 / TP304 Residual Heat Removal 11548-WMKS-0122H1 I ASME Spec. 6-Sl-249 / 2-01 I SA376 6" 0.562" C5.11 / TP316

• Safety Injection 11548-WM KS-0122J 1 I ASME Spec. 6-Sl-250 / 2-01 I SA376 6" 0.562" C5.11 I TP316 Safety Injection 11548-WMKS-0122K1-2 ASME Spec. / 6-Sl-249 / 3-13 / SA376 6" 0.562" C5.11 I TP316 Safety Injection Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 6 of 55 Limitation I Coverage Results I Fig. Achieved Comments UT -one sided, 43% (UT) valve to reducer I NRI I CC N-663 4a14 4.66% (UT applied, no Best Effort) surface exam required 50% (UT) UT -one sided, 12.5% (UT pipe to pump I 4a15 Best Effort) NRI/ 100% (PT) PT INRI . 50% (UT) UT -one sided, 25% (UT elbow to valve I 4a16 Best Effort) NRI/ 100% (PT) PT INRI UT -one sided, 50% (UT) pipe to flange I NRI I CC N-663 4a17 20% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) pipe to valve I NRI I CC N-663 4a18 16% (UT applied, no Best Effort) surface exam required UT-one sided, 50% (UT) pipe to valve I NRI I CC N-663 4a19 14% (UT applied, no Best Effort) surface exam required UT -one sided, pipe to valve I 50% (UT) NRI/ CC N-663 4a20 25% (UT applied, no Best Effort) surface exam required Weld Drawing I Line#/ ID Pipe Pipe Thickness Item Material Dia. (Nominal)

System 11548-WMKS-0122K 1-2 ASME Spec. 6-Sl-249 I 5-35 I SA376 6" 0.562" C5.11 / TP316 Safety Injection 11548-WMKS-0123L 1 I ASME Spec. 12-CS-102

/ 0-09 /. SA 312 12" 0.375" C5.11 / TP304 Containment Spray 11548-WMKS-0123M1 I ASME Spec. 12-CS-101

/ 0-06 I SA312 12" 0.375" C5.11 I TP304 Containment Spray 11548-WMKS-0123N1Z ASME Spec. 12-RS-107

/ 0-01 / SA312 12" 0.375" C5.11 / TP304 Recirculation Spray 11548-WMKS-0123N1 Z ASME Spec. 12-RS-107 I 0-02 I SA312 12" 0.375" C5.11 / TP304 Recirculation Spray 11548-WMKS-0123N1Z ASME Spec. 12-RS-108

/ 0-04 / SA312 12" 0.375" C5.11 / TP304 Recirculation Spray Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 7 of 55 Limitation I Coverage Results I Fig. Achieved Comments UT -one sided, 50% (UT) valve to pipe I NRI/ CC N-663 4a21 22% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) elbow to flange I NRI I CC N-663 4a22 10% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) pipe to valve I NRI I CC N-663 4a23 6%(UT applied, no Best Effort) surface exam required UT -one sided, 26% (UT) pipe to valve I NRI I CC N-663 4a24 0%(UT applied, no Best Effort) surface exam required UT-one sided, pipe to valve I geometric Indication 50% (UT) dispositioned to original 4825 25% (UT construction, not Best Effort) service induced I CC N-663 applied, no surface exam required UT -one sided, 45% (UT) pipe to flange I NRI I CC N-663 4a26 3%(UT applied, no Best Effort) surface exam required Weld Drawing I Line#/ ID Pipe Pipe Thickness Item Material Dia. (Nominal)

System 11548-WMKS-0123N1Z ASME Spec. 12-RS-108 I 0-05 I SA312 12" 0.375" C5.11 I TP304 Recirculation Spray 11548-WMKS-0127C2 I ASME Spec. 1 O-Sl-352 / 1-08. / SA376 10" 1.00" C5.11 I TP316 Safety Injection 11548-WMKS-0127C2 I ASME Spec. 10-Sl-348

/ 2-12 / SA376 10" 1.00" C5.11 I TP316 Safety Injection 11548-WMKS-0127J1 I ASME Spec. 6-Sl-345 / 2-01 I SA376 6" 0.562" C5.11 I TP316 Safety Injection 11548-WM KS-0127 J2 I ASME Spec. 6-Sl-344 I 3-01 I SA376 6" 0.562" C5.11 / TP316 Safety Injection 11548-WMKS-0127J5

/ ASME Spec. 6-Sl-345 / 1-05 I SA376 6" 0.562" C5.22 / TP316 Safety Injection Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 8 of 55 Limitation I Coverage Results I Fig. Achieved Comments UT -one sided, valve to elbow I geometric Indication 50% (UT) dispositioned to original 4a27 21.5% (UT construction, not Best Effort) service induced I CC N-663 applied, no surface exam required UT -one sided, 50% (UT) valve to pipe I NRI I CC N-663 4a28 31.3% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) valve to reducer I NRI I CC N-663 4a29 24.7% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) pipe to valve. I NRI I CC N-663 4a30 4.5% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) pipe to valve I NRI I CC N-663 4a31 1%(UT applied, no Best Effort) surface exam required UT -one sided, 71% (UT) pipe to elbow I NRI I CC N-663 4a32 4.25% (UT applied, no Best Effort) surface exam required Weld Drawing I Line#/ ID Pipe Pipe Thickness Item Material Dia. (Nominal)

System 11548-WMKS-CH-11 /

ASME Spec.

I 1-03 I SA 312 3" 0.438" C5.21 / TP304 Charging 11548-WMKS-CH-11 I ASME Spec. 3-CH-303/1-10 I SA312 3" 0.438" C5.21 / TP304 Charging 11548-WMKS-CH-11

/ ASME Spec. 3-CH-303 / 1-12 / SA312 3" 0.438" C5.21 / TP304 Charging Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 9 of 55 Limitation I Coverage Results I Fig. Achieved Comments UT -one sided, flange to pipe I NRI/ PT INRI Also examined as part of the 50% (UT) SPS sensitized 14% (UT stainless steel 4a33 Best Effort) Augmented 100% (PT) Program and will continue to undergo inspection under this program in the future interval.

UT -one sided, 50% (UT) pipe to tee I NRI I CC N-663 4a34 10% (UT applied, no Best Effort) surface exam UT -one sided, valve to elbow I NRI I PT INRI I Also examined as part of the 50% (UT) SPS sensitized 23% (UT stainless steel 4a35 Best Effort) Augmented 100% (PT) Program and will continue to undergo inspection this program m the future interval.

Drawing I Line# / ID Weld Pipe Pipe Thickness Item Material Dia. (Nominal)

System 11548-WMKS-CH-11

/ ASME Spec. 3-CH-302 / 2-03 / C5.21 SA 312 3" 0.438" Charging TP304 11548-WMKS-CH-11

/ ASME Spec. 3-CH-302 / 2-05A I SA312 3" 0.438" C5.21 / TP304 Charging 11548-WMKS-CH-11 I ASME Spec. 3-CH-381 / 3-03 / SA312 3" 0.438" C5.21 / TP304 Charging 11548-WMKS-CH-11 I ASME Spec. 3-CH-381 / 3-04A I SA312 3" 0.438" . C5.21 / TP304 Charging 11548-WMKS-CH-11 I ASME Spec. 3-CH-381 / 3-05A I SA312 3" 0.438" C5.21 / TP304 Charging 11548-WMKS-CH-18

/ ASME Spec. 3-CH-371 I 0-08 I SA 312 3" 0.438" C5.21 / TP304 Charging Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 10 of 55 Limitation I Coverage Results I Fig. Achieved Comments UT -one sided, 40% (UT) flange to pipe I NRI CC N-663 4a36 14.3% (UT applied, no Best Effort) surface exam required UT-one sided, 40% (UT) valve to pipe I NRI CC N-663 4a37 15.5% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) flange to pipe I NRI I CG N-663 4a38 25% (UT applied, no Best Effort) surface exam required UT -one sided, 43.3% (UT) valve to pipe I NRI I CC N-663 4a39 10% (UT applied, no Best Effort) surface exam required UT-one sided,

• 43.3% (UT) valve to pipe I NRI I CC N-663 4a40 15.6% (UT applied, no Best Effort) surface exam required UT-due to support interference I NRI 76% (UT) I CC N-663 4a41 4.95% (UT applied, no Best Effort) surface exam required Drawing I Line#/ ID Pipe Pipe Weld Item Thickness System Material Dia. (Nominal) 11548-WMKS-CH-24

/ ASME Spec. 3-CH-413 / 0-16 / C5.21 I SA312 3" 0.438" Charging TP304 5. Burden Caused by Compliance Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 11 of 55 Coverage Limitation I Results I Fig. Achieved Comments UT-one sided, 50% (UT) pipe to tee. INRI I CC N-663 25% (UT applied, no 4a42 Best Effort) surface exam required.

Compliance with the Code requirements would require extensive modification or replacement of components with a design that would allow full examination from both sides of the weld. This option to rebuild components is considered impractical and would cause unnecessary radiation exposure. . Furthermore, plant equipment could be impacted in a detrimental manner. 6. Proposed Alternative and Basis for Use The subject welds received a volumetric examination to the maximum extent practical using the best available techniques.

With the incorporation of the POI for Supplement 2, demonstration for best effort coverage was made for single-sided examination from the accessible side of the weld. Additionally, these components are monitored for through wall leakage as part of the ASME Section XI System Pressure Test Program and receive visual (VT-2) examination as required by Section XI, IWC-2500-1, Category C-H, for Class 2 components.

Surface examinations were also performed where shown in Table 4a. None of the pipe or weld material is constructed with Alloy 600/82/182 materials; therefore, there are no primary water stress corrosion cracking (PWSCC) concerns.

There are no known through-wall failures on the welds discussed in this section at SPS2. Any indications were recorded and dispositioned as geometric or construction related. Based on the obtained volumetric coverage with acceptable results, the routinely performed visual (VT-2) examinations, and the fact that Best Effort coverage and/or surface examinations were also performed; it is reasonable to conclude that service induced degradation would have been detected.

Therefore, these proposed alternatives provide an acceptable level of quality and safety by providing reasonable assurance of structural integrity of the subject welds. Accordingly, Dominion requests relief in accordance with 10 CFR, 50.55a(g)(5)(iii).

7. Duration of Proposed Alternative Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 12 of 55 This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for SPS2, which began May 10, 2004 and ended on May 9, 2015.

.Supplemental Report Siimmary No.:

Examloor:

Jeffrey D level: _!_

Ryah J level: UL Site l'OC!Wow.,"--

... """I" Leval! NIA ANU Re>.i'cw; 70 degree wave code covero:.ge on side, Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 13 of 55 l.MT-SS01 F<g4a1 Report Mo.: __ U_T*-'-ll-6.*_00_ . .i_ Ax1,ally 43%,

483 and c!oekwise 48'% fur ii_ total Qf' 1'9%. 'The total l11c!ude;s Jfmlied aecen dllo to grout.on pipe from 2:3" to $1" *.

.Supplemental Report Summary No.: S2.C5.1:1.644 Exami\n(Jr; Odegarct, Je!frt;I p Level: Ill Examiner:

Tolosky. Rynn J L£1vcl: UL Olhi:>r.

Level: Commoom: 10 degree shear wave coda covemgtf on upstteam st<fu. Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 14 of 55 Report No.: lMT-SS!H Frg4a2 page 1of1 -----l:'.N2ta:

---

Date: yjt 5/o'-oatu: N z Axialty 9-9%, CJockwfse 99% and counter eloekwfl:e 9!'1% fQr a total 38%. The total also Includes.

llmfled access due 10 grout oni pipa from :24" to WELD 0-05 $kq.tch or ?hQta; Supplemental Report Sum flHl!tY No.: $2.Co.11.851

..................

Examiner.;

Jeffrey 0 I.ova!: Ill ,< Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 15 of 55 Rspttr! No.:. LMT-SS01 Flg4a3 page1of 1 ___ .,,.._._ Date; ----Exam[lll?.f:

TolO$kld1Y.iJrt J lavi::I: lit.* Sile Date: . Dat<1: I /£¢i? Oil:!et:

Level: NIA ANllRtMewt . -* ... -*** Comments:

ID shoor vf.t'Ve code-cov411rage for upmream &loo. Axla,ly 92'%; .clociovi9eJl2%

and ci:mtttor oloc.kwise 92% for a Qf 4$%, WELD 0-13 Sketch or Phot0-: . **;..:

...*. * . . ""' r:Jl.;'11-

,,_.,.. _. ,_, -----""""""----

*,**** / ... -* . i;

;::' W:i#'N" Supplemental Report Summary No,;

Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 16 of 55 LMT-SS01 Flg4a4 8m. tt i ! n er: 0-cfogard, D Leve!: Ill Date: Exatnin!l1; T<rl01iky, Ryan J UNl14! .J!.!::._

Site A1twiew:iiiYd5ffwiil111/_Jt.Qharo:

Hh1(l!J..'.._

0111or:

Lovt-1:

/1k?r.,

Comments:

70 degree eodo <<Wer;ige for upstream skle. AxiaUy 79%, clockwiS.ti 7S% and ct>un\or i;:!Qdlv1ii;e TS% for totnl .ot 39'.!$%. WELD0-16 Sketch or o n .q 2 1ciS .**= :*

Supplemental Report summary N-0.; s2.cs.21, 164 ........... ...........

Examiner:

Cage, Norman Level: J!.:f£!. ExamrnGt:

Otl!Qard 1 Joftrey D . level; Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 17 of 55 R£port No.: LMT-SS01 fig4a&

---

Oala: _.,.,.._ __ Data: 01hcr: "°"'W.;,;,..

Leval! NIA AMI Revi!iw: .....,,, .........

Commen1a:

For Caf. Sheets 28,74&126

• Weld Numoor (1 ._& ti_

• Weld Thick.ngss

• • I/.!'" " Weld Length* '""' tt Row Code Coverage Total . . Best Effort Covemga

• _:_ 4.

Supplemental Rep" n1 Se r ial No. 16-1 46 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 18 of 55 Report No.: LMT-SS01 f i g4a8 page 1of1

---

Psge: 4 of 4 S u rnary No.; _s_2._c_s._2_1._22

_2 __ E:Jcam i ner; Zo ll ner , Brian o. 1iz: Lev.i i: I *POI Exam i ne r: _N._I A _________ l eve l: N I A O t her: NIA l evel: NIA Comments: COVERAGE

SUMMARY

Sketch or Pn oto: Weid Number Weld Thickne5s We l d letl{ll h We ld Width ft'!' HJ8B .438" 1 1.0" Cl <N , TOTA. A'D!ltR!!D E1WA VQ.ll.l!l:

O.Oi *SCI IN. 1 00+1 013' + 0 + 90 "" 290 I 4 "'72.5% Exam i nation Vo l ume Dimensions

-He:ight .16" L ength 1 1" C ov erage Summary Wi d th Required Scans (each has a weigh i ng factor of 100 for complete ANGLE 45 60 70 *00% 1.2" Di!te: 11-z,;)_'j _ Date: .ltii:[!L;. r. * * .. Code Coverage io1al I 50% .. Nk>t.es: " Best Effort Coverage 25%) fot.8 1 **

• 1 22.5% 1} Code Coverage refers to the maximum percentage of the required examina t io n llQlume !ha t is effect i vely examined w ith l he qualftied axaminatioo procedure;. 2) Bes t Effort Coverage refers to lile required examina tion volume past the wekl centetf i ne lha t i s e.xamlned n the a:xla l beam dlreetfon witli an Appendix vm demon strated procedure for sln g le sided ccwerage , TH ICK.Ness A N D COJ<J-m\IR TAK 5 N FRW PREVIOUS QA TA. o&,tld i!lo.n s l. Supp l e m e M:ll R cpoiU W'i11 Supp emental Report Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 19 of 55 Report No.: LMT.SS01 fig *a7 page 1 o(1 UT.OS-.103

---

Pa ge: 4 of .4. ymmary No.: S:Z.c.5.21 .. 223 Zotrner , Brian D e Level: lf*POI R:o" ev . NIA Level: .IA Site Re ----------

0 l her: !NIA L evel* AN ll Re V/>L\IE Weld Number WeldThit:1<nes Weld Length Weld Width .525" (.43S"NOM) 11.0" . . . . .... .75 .. ///,,.;,-;,;_ .0) SO , IN l)S AlCJ/4 .. J)IJl !E."'l'" fJft'Ciff' .. Q:ISQ.j 1 00 + 1 00 + 0 +8.2 "'2 82 / 4 = 70-5% E xam lna tloo Vol1.1me O'mensloos

• He l gt\t 17"' 1 .. Cover.aae Summarv Required Scans {each Ms a wmgn1,,g factor of 100 for coriip'iete

..:U* __ ,., . ANG.Lt .. AX c Dnst ,..Ax Dnst-Ci rc .. 45 , 60 7 0 Notes: 1) 2} 0% 100% 1 00% I . Code Coverage Tota l t

• 6est Effort Coverage (Max: 2:5%) T ofal . I Code Cove ra ge refers to lhe maximum percent'age of the required exam nation volume lha t is effeotively examined with th!i.!'

examination procedure.

Best Eff ort Coverage rerers to I ha requi red examinalion votume past 3ie weld is examined in the axial beam direction with an Appendix VIII demons trate d rProcedure

!'o;r smme sided c o11erage. THICKNE:SS A NO CONTOUR FRW 50% 20 .. 5% I '!

Serial No. 16-1 46 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 20 of 55 Supplemental Report LMT.SS0 1 Fig 43'S page 1of 1 Rep ort No.: ._..__VT __ _ S u mm;iry No.: -"S""7""'.c"'"s

....

____ Examine r: Zollner, S na n .0. fi:SVit)W.{;1 1". Elt<lmine r. Thomas , Travis w. 'f.). L evel: U*POI L evel; 1 1-POJ Level: NIA Sile Other: NIA A t i Review: Commen ts: Sil.etch or P h oto; COvER1CGE SOMMARV We l d N u mber Thici<ness WeldLengtti WektWid!h Fl.DIV ' --****-*** /. 11.0" .675 -----..__

CL / WW'-.. / . -/ . --.5/J' erM!!NED .00<9:1 Ill US:AXt:Hll!ametf

., .)'/./))';.

ElCoWftfO

.(fl C'Q. IN O!IAX'. OliUlelDI l'BSTEff'<MT f,'5.-"""'" ,,ll2SQ. flt 100 + 1 00 + 78 + 0 =: 278 I 4 = 69 , 5% E:x:a:minal loll Vo l ume Dimensions

• Height .158"' Length Width 45/60 100% _100% -0% 70 78% Pege: 4 of 4 COde Coveraae T otal 1 50% 1) Code CO\lerage refers to me maximum percentage of tile requ i recl examination volume that ls effee!ivety examined with ltle qualified examination proce.<fure

.. 2) Best Effort Coverage refetS to ltle required examination volume past !he we l d centerline tMt is examined in the axial beam oirectioo wrtt1 an Appendix VIII demoosll'ated orocedu r e for slnate sided w1e.rooe.

11-j l CKMES-SANO CONTOUR T AKEN FR OM PREVIOUS DA T A.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 21 of 55 Supplemental Report , .... ' Repor1 No.; -SS01 F i g a 9 page 1 ------P<1ge: 4 of 4 E'.xm n ioo t: Zolln;r , B ri ano. . l!WO I: J I.POI Thomas; Travis w. 1. ,-. l avet: It.PO I Other. NJA l Q>.i'El l: NfA Sketc h o r P h:olo: COVERAGE S U MMARY Weld Nu m ber Wekl Th i cil.nesi>

WeJd Lerigtil Weld Wltll FLO W

.475" om Cl. / : _,. ... '15 __ ,,..,,...,.,..

• . PIPE ----r--' VALVE --.-13' . .if/S m EXl\MNaJ.WSQ.

lN.00 \. ". EXAMN:O.<BSQ IN. USaESTa:roRT

""'""<<J NOEXAMNA"l"ICJ.i,01

00. IN , US Sl:EAX.DlftCTION 0.18SQ O>t 0 '.ALOOCE RKll.JIU)EXl\M

\Cll.J.J,E mo+ 1 00 + oo + o:; 2ee t '1* *72% Exam i nation Vo l u m e ffm e ns f oos -.1-43" Length 11" Govetaae Su mmarv ANGLE UpSt-Ax UpS!..Circ .DnSH\>c DnSt-CJrc 0% 1 00% 100% 70 D<l le; _IN l* "f .. 1, 17 5""

• Best Coverage {Max 25%) TQtaf t 22% Notes: 1) Coda C o v e r age refers 1*0 Ule maxim um of the require d exam i nation vo lu m e that is effectlvely exam in ed Witl'l the qu al 1f}ed Qxam rmtl.Qn: proce(lure. 2) 6est Effort Covernge re fe rs to the examination volume pas t the weid eenterl ioe I.h at ls ex amined j o the beam <faection with an Appe ndix Vm demon s1ra t ed proced l!re* for single sided i H I CK N 5S AAD CO N TOUR TAKF.111 FRC>>;l PR E VIOUS: DA T A.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 22 of 55 Report No: UT-14-066 Su mmary# S2.C5.2 1.2 5 S LMT-SSO Fig;4a10 P*11 Pg. 6 of 6 .. P r epared by: W. Thom;is Dat 6: 05/Q8[2 0 14 µf::$(Mt We l d N u mbe r Th i c k n ess 2-0 1 0.458" We i.cl Wi dt h L e ngt ' 0.6" 2 1 J FLOW V N.,: V E 0.153" HT X 0.55" W IOTH;; 0.0<!4 SQ. l!N;; R QUlRED VOLUME US AND OS SIDES ** EXAl.<<lffED0.07 4 SQ. IN.OS SIDE AX REC l!ot l B ES T E fi'CR.T AX D I R .. OS S I[)£

.N O EX AM O S S I OE N<. O IR ECT I O N FOR Exa mination Volu m l? Dimen s i ons -Height Q.153" l.l" ANGLE 45,60 70 2.25 NOteS: Coverage Summary Requ ir ed S c an s (eaeh has a weigh i ng factor of 100 fo r CQtnplett:)

c:o-v.e r age) . UpSt-Ax UpSt;-C irc On$t*Ax D n St-C ir t 1 00% 100% 0% *ss% Code Coverage To l a I I 50% *Se st E ffort Covetage. (Max 25%) Tota l I 223 11 Code (:QVe{'age refen: t o the m:a)CJmum percentag1!

of tne r e qui r ed *l!X.am i r ta lion volum t> that is effec;Uvely eMirl'lioed wJth the.qu alifit!d f!1<11inll'llitlon pro c edu re. 2) E.tfort t.o the requlred e:ic:am l nation v o t um e past th i e weld <:imter 11!1e th.at e;<a m toel:I In ithe. ilx!al bea l'n dl r!!<:tlon wl.th Vl11 demonstrated prCl<<\du r e for

$'ided cove r age. I 7933 HSSGS Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 23 of 55 Report No: UT-12-109 Summa: ry # S2..C5 , 21.297 Pg. 4 of 4 Prepared by: W. Thomas f>.ate: 11/12:/2012 LMT-SS01 p-aQO! 1of 1 ftf $ "fn/ P-o 1.,,.,., Weld Nu m ber T h ick nes$ (}.1 9 0.404" We l d W i d th we ldtength 0-4"

---

11* .. /ltffl.t.. 1 0 FLOW rlGIE: l MDC 'w.Jl TAl':IZJl FROlo.I f P.IN IOOO Oi\TA At CA'f utlil'l!l 74ll o ... T£C l'2>1:l:!. TOTAL REQUJRED Ex:Ai.I VCX.IJME = l);Ot; SO. IN .. tlS OS $ICES EXJ<ll lNEO Cf1 TiiE REOOIREO \i'a..U&!lf:

IJS Slot EXA l.rntED ll.Cl-4 SO. II{ 06 S IDE AX. Clll.EC'l1 QH !!E ST eFFORT .04 I .OS.

• 66<.7% NOEXAMFCR0.02SO.

N OOSlllcAXti1ru:

cr 100 .()2 I .06 331!% 100+100+65.7-t0.;266.7/4 6S.7% ham.lnatfon Volume O!mMsfons

-Height o.ns* Length 11" Wid th 0.9" ANGl ,* 45/6 0 .70 2.25 Mh i Notes:

Summary . . . .. ReqLJl!'t':

d SC'a!'1$ {each has a we.tghlng factor of 100 for coverage}

1 0 0% 1 00% 0% *66.7% Code Cove r age T om i I so% L 10.7% 1) Code Coverage refers to t he maximum of the reqliirod exam in ation vo l ume that is effectively examl!ied with the qualified e-xamlnation procedure-.

2) Best Effort Coverage refers to the rectulred e: xnm nation volYme past th e weld centtrl'ine that i$ P.x a mme d hi ttie <4lC)i9'1 be;am direction w it!h an Appendfl<

V I II proced\.Jte for single sld@d coverage.

Supplementar Report Sum ma ry No.: S2.C5.21.:l10 Exa m ine r: Siste k, P L evel: ll*f'OI E lt.lmi e r: _N...;..,fA

...._ ___ Leve l; NIA Ot he r: WA . *comm e n ts: 1!'540 ,\JlMS*St *21 \.Jf/0 NO*; I*

NO.: si. e.s. 2.1. Mlllic nal

• S upJ m e ncaf R.cp art11 Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 24 of 55 R errort N o.: l MT-SS.01 Rg.4a t 2 page 1 of I UT*OG-0 99 -----

Serial No. 16-1 46 Docket No. 50-281 Rel i ef Request LM T-SS01 Attachment 2; Page 25 of 55 S u pplemental Report MT-SS01 Fig 4a 1 3 page f af RePQr1 NQ.; UT--09*132'.

&.ir'ri 1n.a ty o.: _s_2._c_s_.1_1._Bl>_o_, ________ _ Exam* e r: Mu irhead, Ryan L :Z::: ........._.>

Leve l:

Revie we r: xam e r; NIA SieHe *ew: L eve l: N fA N I A Other: NIA N II fte 'ew; Ske!-ch or Photo: COVERAGE

SUMMARY

Weld Numter We t<J lr lcknt:Yss Wefd Loogltl WetdWidth

.4 75" (.375nom} 50.265 .. .875" fLOW

,/ 0.1 row. .OOA'ICll'LDPSJTKH . *' ////,

il.22 00. INCH TO'D\L RBXllREDEXl'll

'lrU!A'E E:xam i natio Volume O l menetoM -Heig t .163" Length 50.265" W l dth Coveraqe Summarv Requii'ed Scans ( eacll has a weigh in g factor C:)f 1 oo* r or complete coverage) 45160 O"'li> 100% 100% 70 55% ------4 of 5 1.37S: Code Coverage Total I. Otn1 . 1} Code Coverage refers to t he m.rua.rrium pereenw9 e of ttw requ red exam l n afiott wJume Ula t Is etfectlvely examined with the qualified -exam i nation procedu r e. 2) Best ffort Coverage tefers to the required exam nation vo ume past the weld " centerline that is exoimirled n Ule axia l beam directi o n with <Jn Append VIII demonstrated pl'OCOOure for sin g le sided cove r aae. 100 + 100 + 0 + 55 "' 25514 = 64% .

• Md IOl\SI . Suppfame r;t Reports Supp'lemental Report Sum m ary No.; S2.C5.1 1.873 E x:a m I nc r:

Jo.ffr*y D Level: UI Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 26 of 55 LMT-SSO F;ig 4a14 page I of 1 UT-06.054 Pa<Je: 2 of 2 Da l e; ----E xam lrMJ r: Tc l oaky, Ryan J Leve l: Ill RGv l e w: ----------Da d e: ----O lne r: _Nl ....... A ___

l..eve l: NIA AN ll RevlaY/: ----------

Da;e: ----C ommoo t:s: 70 degN!e shea.r wav* codo covOfago for downstre:11m s i dle. Axlalfy 86%, c:lockwlsc 86'% and counter clockWl&e 86% for a total Of 43%. Sketch or Phom:

-Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 27 of 55 Report No: UT-12-107 L M T-S00 1 Rg4a 1 f* page 1 of , Dominion:" Summ a ry# S2.C5.11,0 2B Pg. S of S P_ re: pared by_ : W._ .. _* .*Vu 'K 11-iiHl...

Date: ll/18/20 1 2 . .

• Weld Number 2-15 Weld W i d t h 0.5" A A'? Weld l.er'lg t h 43.98" T h!ckne L 0.490" z ---L-*-2-1 5 -------------....

E L o , F L OW CL -...,.__ / I ,// >a E l Al-0 C f\ Ill f'fifV l O U! DA rl 1 REl'(R 1J!Rh0 '71 DA TE D 4>!1".lOOl:.

I.Ill------o.oa SQ IN. TO Al REO,tJ I REDVOLU M E us MID OS S I DES EXAMI N ED 100% a" T HE RcQU IR EO 1/0Wi.t E US S I DE tr.>'.AMI D 0.0<!

• lt!OOli!O C I C ll Qt l 11£11Tr;rrmr

.04 I .06 -= 0.50 X 100 "' 50% S S T E.FFORT D S SI DE OIR:ECT 1 ON NO EXAM OS SID AX 01 E C T ION FOR .04 SQ. I N * . 04 1 .08 =.S O X 100 :-: 50% NO EXAM. NO C1RC: EXAM DS SJO El!:aminatlon Vo l ume [}imensions

-He i gh t 0.1&3"' Width Coverage Summary Requinid S cans (e ach has a weighingfaclor of 10 0 fo r complete c overage) ANGL E UpSt-Ax UpSt.C i r c Dn St-Ax DnSt-Orc 45/60 100% 0% 45/70 l00% 70 l.2.5 Mtn ... SO% *-***** **-***** ' i Code Coverage T ot!ll I S O% *Best Effo r t Coverage jMax. 25%) Total I 12..5% *-Notes: 1) Code ref .rs to tlie .max i m.um pemmtage o.f the reqt1ired exmn J n atl on vo lu n e mat rs examined with the qt1allfieci exam iootl on f)focedvre. 2) Bes t Effo rt Cnve r llge re f er s to the re q uir ed e:x;am iJ'l atiM v olume p a st: t h-e weld cen t erline t h:;i t i exam lne<1 i n tfle axlai b

• am d i rec tio n with an Appen dbc illll oomonSttal-ed procedure for i>ingfe sided C O\l erage. --

Serial No.16-146 Docke t No. 50-281 Rel i ef Request LMT-SS01 Attachment 2; Page 28 of 55 L MT-SSm Rg4a1 6 , *

• Domm1on'** Report No: Ui-12-108 Summary IJ 52.CS.11.CBB Pg. S of S Prepaied by: W. T homas #fi

• Date:ll/18/201.2 12.'Cl.Ji' Wu l M.H '2.. ):;Ji-Weld Number 2*25 0.455" We l d Width 0.5" _ . . A)i:J ! ";(fi-Wel: d l ertg:th 43.98" I t l *' 2 FLOW EXJ'.\MINED 100% OF THE REQUIRED VOLUME U S SIDE ........ f7>'7777l EXAM I NED 100% a= THE VOLUME DS SI DE l(.r::liL.!

pre IV<. DIRECTION BES T EFFORT. Examlnatioo Volum<! Dimension$-

HeiGf\t 0.152" Length 43.98" W l dth 1" Cover<1ge Summary Required scam (each ha:; a weighing factor of 100 for complete coverage}

AMGLE UpSt*Ax UpSt-Circ OnSt*Ax DnSt'-Clrc 45/60 100% 0% 45/70 100% '70 U5Mfi t: *!00% Code coverage 1 ohd I 50% "Best Effo r t Cover;ig@ (Max 25%) Total I 2s% 11 Code Coverage refe:rs to the mooc i mum perc;en wg e of the required examinatfon volume effec:tivety examined with the qruatified examination procedLJ>.re. 2) Best Effort Coverase refers to the requir , ed *examinal l on voluml! past ttie Vi-Old centerlr'oe that ts examined in tile axml beam With an Appeodbf vm dernons.trated prot:edure for 5 i rui)e' sided l

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 29 of 55 LMT-SS0 1 Fig4a 7 page l of ftD ... (;Ji1'1 Repo rt No. SummaiyNo. PSJ. 4 o r. 4 P r epare d By: UT-11-040 S2.C5.11.1 28 TR AVIS THOMAS 513120 11 We1dNumber Weld Thi:dc;nes.s

.5 , *** *-**-**** 2-06A .375 Date: Weld Length WeldWidtti

.6" I I .i t . I I I L.> I; 1.,.l_i I I' I I l-.L .* 1¥ ...

¥* 1.-.L ,I f I l ,J,.' I,! ' l . ' ! ' '. I I l \ t 1,1 I .... ! 2 0 3 nYCiq>J$$$

I.EM liiME NT 8 i) .'l::W LIS NQAL Si. *100% exAMtEb ".ell SOI.ME I Nl:':HEG S'tt;FFom':OSAAl>\!.Stoa

• 0*0600-IN. T OTAL. REWArnOSAXIAL SIDE"' 0.1<l 9Q-. t-i. 0.061 a, 10" Cl.8x100 .. 00% "P""" NO E X/IMDSAXIALSIOOel)tli!

SO. I N. O<<! I Q.11)" 0.2 X t OO"' l!ll'M. TOTAL EXAMINATION AREA = 0.19 SQUARE I NCHES Exam j na lion Volume Dimensions-H e igtl t .... Len 9th 40" Width 1.1" Coverciaa Smnmarv Required Scans (each h as a we J gliitlg f a.c t or o f 1 00 fo r complete coverage)

Angfe Up-St-Ax o ost;:c i rc D n St-A x 4 5/70 100% , 1 00% 45/6() 1 00% 1{)0% 7 0 BES T EFFOR T=< 20% &-...st Effort (Mex: 25%> i: o ml I *1 Code Coverage refers to the m a ximum percentage of U'le required examina tion Best Etrort co.verage reters to t tte requ i red exammatloo vorume pas t th e weld

• oenteffin e tha t i s exam i ned in the axial beam direclio n wllh an -Appe n d bc Vll I

• lhat is effectively examined with the qualified exam i nation procedure. demonstrated orocedure fo r s in!'J le sided ooveraqe , * .. **** *. . / . **.* ' , . *-d p

-Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 30 of 55 UT-11-020 L M T-SSOI Fig.43 8 page 1 of I ,-Dominion* R.eport No. Su mma ry N o. Pg , 4 of. 4 Pre pared By: S.2.C5.11.161 TRAV I S THOMAS 4 130/2011 Date: Weld N umber tN ek l Tu icl<ne-ss 0.562" We l d lengt h W e l d Wrdth 21" 1)1fl00' :(J.5)1;)' -S,.<;l!lF 4))!511 !!I N't{ 1'! IJS A>>ALSICE !Om.VQ.lif

,'E FJ IAM)<fil) : a B!?S'l'tan'W'r c:6AXW-soo .'12 ro.1t-1 l OlAL Rl!<JU l'IWOOA>a!\L sr.e*= o. *1!t00; 100*'5 3.,., lO*EXMI OSNMLSOO Q07 SO. rk; G 19*::i:Jn 7)( 1.(Xl"" $19\ Ex am in a lk m Volum e Dim ens i ons-Hei g h t .1 87" L e119.th 2 1" Width Ang!e 45/60 70 R.e(lu lr ed Scans (each has a weighing f acto r of 100 fo r complete ooverage)

Up-St*Ax Up St-C r.re Dn*st.C i rc 100% 0% BEST EFFO R T=t6'% Code Coverage Tota l .I Best Effort Covera,ge (Max 25%) T°'1a l I 1} Code Coverage refers to the max i mum peroenlage of the r equ i red exa111ma 1ion volume that i s effective ly examin ed Vllltl the qua l ifi ed examination proceeure. 2 t l30$l Eff ort Cove r age reters to the r eq ui red e:xaminat!Oo

\'()j ume past the weld cente rfi rie !ha t i s exam i ned I n the axial b eam direction wi l11 an Appendix V I ti demons t.rat ed procedure for smale sided cove r all8. 1-5" 50% 16%

Rep o rt No. Summary No. P9. 5 of. 6 Pt e p a r e d B y: Date: Ser i al No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 31 of 55 UT-1 1.0 56 S2.C5.11.185 TRAVI S TH OM AS 51312011 lMT-S S01 F\g {aHl page t of1 Vveld Weld Thicknes1!

2-01 Weld L oogth Wefd Wti th 2 1 f l) ,$1;t 1' 2 V\*1.1) Fl.DN

• • -*-* : .... -: *.,

us .A,JqALSOO 00% V CH N* EX"<MIEO .. BEiBT EFFORT OS AXIAL. $100 *<lm $0. IN 007 lf l13-0.ro3X OOi!!Xl>N i llGA>GA L Sll:lE."GOOSQ , I N 0.00 J 0.13., 0AG X100"'"°*' TOTA L EXAMINA1la.J f\REA.= .23 SQJARE INCHES Exam h1 ation Vo l ume Olmenslons

• He i ght .18 7" L ength 2 1'" Wfdth 1.1" Covmag:e Summary Scans, (eacii h as a factor of 1 00 for complet§!_c overage} Angle Up*S t-Ax UpSt*Cifc DnSt-Ax . -. Dn.:S t*Cir c 45/6 0 100% 0-% 45/60 100% ()% 60 BEST EFFOR T= 14% __ _ 7 0 EFFORT"'-25% Cod e Tota l I 50% Notes: i) Code Coverage refers to lf'le maximum .perce11 lage of tfi ereq u tre d exa.mmaticm "J volume !fiat ts e ff ectiv ely examined with' the qual ified examination prccedu t e. J Best Effof_t Co ve rage (Max25%}TQta l I 14% A ,,_, 2) Best Effort Coverage refers to ltle r:equ1 red e.x.aminatkm volum<t pas t !he we ld

• ____ -.1/7 /' 1' il demonstrated procedure* fo r sinq l e sided cove rAnA.. Joi. cio Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 32 of 55 Report N o. Summary N o. Pg. 4 of. 4 UT-11-03 4 S2.C5.11.229 "'n* .. ., Oh'HftJOft

• Pre p ared By: Data: TRAV IS THOMAS 511/2011 We ld Number w Id lhlck r io s " 3-13 .562'" 0 Gt. XI We ld Lenglh Weld Width 21.125" .8" .,,. :I ll \'\.l 1 t: J O'OY.N: \" 4 1 WM-6r' ' 46 B JlV'I. AXIAL DE-

• . 'to SQU'\Jl;E. IN JMGi TOT/II. R2D\JIREOll6 AlU<\L Sli:!E

• 02300 Q.Z)/03tl-1 x.'

Examination Volume Dimension

-Height .167" L n gth 21125" Width C ov era.oe SumrnaN R equ i re d Scans (e a ch has a weighing f actor o f 100 for com plete 00\*erage)

A rig l e Up..Sl , A.x . UOSl-Clrc --*-* D n-St-C irc 4517 0 1 0 0% 0% 45/60 100% 0% 70 BES T EFFORT = 2.S:% Codo Co ver ag e Total I Best Effort Coverage (Max 25%} To t a l I ;Notes: 1) Code Coverag refers t o the maximum percentage of lh e re q u i red exam inatio n volume t hat -ef f ective lv exa m i ned wi th ll'le qualified examination procedu r e. 2) Best t tf o rt Coverage re ters ID t he r equ i re d e.xaminatlon volu m e past lhe we ld oen rtne th t j examined io the xial beam direction W'f th an A pendi'x V I II demo ns 1r a t ad procedurn for sing l e sided c01teraga. 1.1" 50% 25% LMT..SS01 Rg4a20 page 1of1 Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 33 of 55 Report No. Slfmmary N o. P g. 4 o.f. 4 UT-11--024 S2.Co.1 1.248 L MT.SS01 Fig4a2 1 page 1of 1 ftD* ** ** *om1n101r Prepared By: Oa t B: TRA VI S THOMAS /.;r. Y..:IP*tt 4'28120 1 1 Weld Number Wo l d ThicMO$S . , ,* T H-h -t "fR 2) .M!!1' 3'J o">6fr 4) MT Sl .ml' .5 62" F ICW 1 4 Weld L ngth WeldW i dlll 2 8" V\E L O CROJ\N IMDni

• 0. 8" 5-35 DS AJOAl $ -100li) vou,.t EXAldNSO -t2 IN:HIB 6RJTi;FFORf Vi>AXW. l;l:E*. l!le!Q.lt( *rcrrALMBJUFeOl..SAXVIL SD;* 14ti0 tN. Q'1?1Q"'4* "O T AL EXAM INA TI ON AREA= .2 6 SQUARE INC H ES xamlnatlon V oll,Jml'!

Dimensions

-Helg t .1 87" Length 21" Widlh 1.3 Cov&raM Summarv Requi re d Scans (each has a weighing factor o f 100 for CQffiJ;Jlete

.. Ang l e 'Up-SI-Ax UpSt-Circ On St-Ax

• Dn-S t-C i r c 4517 0 0% 100% 45160 0% 100% 70 BE S T EFFORT "' 22 % Code coverage T o tal I &0% Bei;t E ffo rt Coverage (Ma x 25%) T ota l I 22% Notes: 1) Code Coverage refe r s t o the ma.xi m um p ercentage of the required exam i nation t.hal. is e ff ectlveJy examined Wi t h the qualified examination procedure. 2} Best ttort Cov ge reters to ttte req 1 d examination vo lume pa t th w Id centerline ttiat is exam ined i n the a:icial beam direction wi t h an Appendix Vlll demo11strated procedure for sinqle sided coveraae.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 34 of 55 ,. , . , . ' Supplemental Report LMT..SS01 FIQ 4a22 RepOf t __ _ sum m ary No.:

E.J.;aJnine r: H a nnon , Byro., ,

le., e l; 11-f>l.)I Exa min er; NIA / Leve l. -;;;;: Rl;!v i ew ar: S l teR6'\<icw:

com m ents; Sk o l.th Cf P hOlo: El..DOW

.. , . ..., ANI! eviow: CL .Oi 5-0 , lN'..11 Bl!ST .En'OR T EXAM ARiiA Page: 2 of 3 Code Coverage Tota l 50% Notes:

e{Ma£25-%}Total 1 0% 1} Code Coverage r erers lo ll:le maximum pereoolage of U1e reqtiifed examination uiat 1$ e f fectively examined wilh !tie qualified examination procedure. Z) Beat Effort Cove r age refers: to the r equired volume pas t UlO weld c.antefline that Is examined i n too axial beam d i rection wifh an Appendix VI 11 demonstrated rocecture for sin le s lc!oo covei:a e.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 35 of 55 !' ... . *, .

., *. Ii' ** ** ; "< C om m.ents: Ske tch or Photo: Note s: Suppremental Report Rep<<t J.G SQUA R E INCH T('ITAL EXAMIN.\notl MW.A *'.'.. 0,_ \,,,:-.. ,\JtM SQ fWW rn ********-****

'"---***.....,, ... ------\ ! -l ---------------i-t<R. .i::w .339' JW .il'W' NP E 100% 0% Code Total 50 Best Effort Cove r age (Max 2S%. Total 6% 1 J Code re'fers to lhe maximum o t 1he required examinatiOtl volume tnal is effeotivefy examined w n h the qua l ified exam i naoon p r ooedu r e. 2.) Best Effort Coverage refera to the re<r u i red e xam inatio n vo l ume ;past mo we l d oenterl i ne that Is examlned in t he axia l b e am direct i on wlth an Appendb< V III demoostr.ated. ooedurofor sin t e slded covers e. LMT-S001 Fig4a23 page 1of1 ------Oa te: f;t'5' tf.1 /de alE: Oa te:

Supplemental Report Sum m myNo.: S 2:.CS.1 1.346 Exam l l'IOr; Odeg'lrd, Jeffrey D EXM!l ner: TOl:osky, Ryan J Other: WA Level: Ill Level: . .. lit: Site R evie1'11; L evel: WA ANll F\Q.\lf<M!

C<immen!s: 70 degmo w;ive code coflr119!.!

for iap11troam 5ide. Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 36 of 55 Rl.1!JortNo

.: lMT-SSO fig 43!24 Pa ge: 2 o l 2 Dale: °""' Date; ,r -Axially 52%, clockw i se tl2%, and counter dockwh1e 5.2% f'Or a total ot 26%. Best effort CO\l'Ot.age for dOwnstrl!atn side. Ax i ally 'D'l'I>,

0% and 01X1n.ter elockwise 01 ... Weld 0-0 1 .........

Serial No.16-146 Docket No. 50-281 Rel i ef Request LMT-SS01 Attachment 2; Page 37 of 55 Supplemental Report lMT-SSlJ1 Fig t 4a25 page1d1 , ----DOlnl t JHQd' No.: I.IT ..(l!M O a Page: 5 Of S Summary No.: _s_2._c_s._1_L_34_n

_______ _ Reviewer.

Wayne Thomas Examlrll!f" Thomas , Tr<ivis w_ LT. L fl!ll()I: 11-P D I E xa min er: NJA. Leve l: NIA Olher: NIA L ev : NIA :::::*?F=

FLOW COVERAGE

SUMMARY

Weld Num'b0 r Weld Thickness Weld length Weld Wkllll 0*02 O.Ol 40" .5" 10 ,./ CL I ,. -.. "'"""-. -------------(..

= .16 SQ_ IN. VALVE " --, PIPI; EXAMINED . .(}8 SQ. IJlt OS AXIAL DIRECTION

.. _ EXAMINED .0$ $Q , IN., us AXIAL om_ BEST" EFFORT 100+100 +100-. o :roo 14,. 75% Examlnatloo Volume Dimensions

-He(ghl Covoraae Summary ANGLE 40 Width 0% 100% . 70 1" Code Coverage Total I 50% Notes; *' Best.Eff'Ort: COverage (Max 25%J Total I 25% .1) Code Coverage refe: rs to the maximum ;per;cenhlge:

of the r equired exarnln.ation volume that is effectively exam i lled with the qualified e:xamloatiori procedure. 2) Best E ffort Coverage refers to tlie requi r ed examination vofume-past lhs weld centerline lhat Is examined in axia l beam direction wrth an Appemfix VJ l i de.monstrated f()r sinQle sided coveraoe.

AND CONTOUR T!l.K.EN fROM PR EVIO US DATA. ome 11f9f200 9 Data: Date; I'/ . ;!, W Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 38 of 55 Report No: UT-12-087 Summary# S2.C5.11.3S1 Pg. S of 5 __

by; w. Ttiwi1i1$ l..Mf-SSO F i g4a26 page *1 o'* 1 Weld Number Th lc:kn:ess 0-04 0.349" Date: 1/ 8/201 1 tj?. .1 1J We l d Width 0 , 8"' J it"'-length 40 (l 1 2 __ L__

.. ,,, ____ '* -...... ......... , __ ,,,_, T i'RE'lllJUS Dl.'T A RE?C"R T tmlNO 767 OATED 04!'.i&':.>..'<<!. F L OW CL // .. / ""ft40Ui:l ilrut *t-.-x1..-t

• AJ1; 00.t LJ\NG E ----._ -J<:;;;>"? ---

P I PE .M:r .<mr ----!Uf----

!IO I<<. R E<lJIRE O 00 tlG. DtX .ur icu I ll .,-;77:777 z 1 t:r.-. . () 0.U!li> "O' IN. Ue SIDE A.'lC lltR ECll<:tl X 2til';* ' 2 t.'ll' U U.X ECTION t:rr i.:nXo\11 !i>\110tJ l\lC Ol 11'8:TiCµ

.1l Cl,!; TO Cl:.t<AOU<A1l

• UIO w* l:tCT su. ll't.x :n.n-L!;l'G 111

• rrrn.i. 1wt<E.n fld'lfl)$

a ""'"';;Jr3*0.!a.

I N. 00 .SIOE hX Olll£Cliatl( "1.1t'f >2.JaCIJ. I M. .X J,. IN I Th'li 00 'Me.LOOI.El

.016)13.:1 *: QJ.114 NJH'.XAHI rooo ,\)( C'f)Q>j : M'.1 13. x 1 00. ' Examination Volvme Dime1 H lght O.U 6 ,. Width l.3" Coverage SU!'IH'l'liU'Y Required Scans {each a weighing factor of 100 fo, oompfete covef(lge)

AN G LE Up, St-Ax UpSt-Ci r c; tin-St-Ax onst-<:irc

-45/60 100% 0% 45/70 80% 7 0 2.2!>Mlt.t

" 12% : ' *--* ' Code Total I 45% " Bes*t Effort Coverage (Max 25%} Total l 3% NotH: lJ Q.-)dt! Covetage refers t o the ma:icirnum percentage ot the required e1tilmi n at£on volume that is C!ffKtiVe l y e){Clmined wit th!! qu.1h led exami11<1t on p r ocedure. 2J Best Effort C.m1.er.age refeH t o tl1e required e,rarnJnatfnn volume past the we l d ce<nter1irte th;Jt ii; exi3rnined in ttie axial be.am d111 c.tlon witti an Appendix V III demo n strated procedure for sing l e :si d ed Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 39 of 55 Supp l emental Report Report No.: l MT-SS01 Rg4a Q,7 page 1 ct 1 UT.09-109 Page: 5 <>f 5 Summary No.:

E'l<amJrmr

Tl"lomaS;, Travifl W. . . j':T, L eve t U*PO! Exermner; NIA l11ve l: N1A Other: NIA L!ffil l: NIA Comm en Ii?; Sk:elc h or r>hoto: Wold Number Wcld T h ic kne$ Wcld Lefl91h Wek:!Wi'.<l l h Q..05 .3 7 5" 40" .6" FLOW 00+100+00+0

=286!4=71.5% Examination Dimen$lons

-Height l!l<A i.t l!lt!).tv'fn IN OOA>Cl'LD-flroTQ< IN.U&-.IJ!R B'.HIOlol llE!!!>EFl'MT ;;5'."*""' °' ,.., "° IJ?IA)Q ...

1't>Tllt.<;QeC RtJDUlllID iCtAM -E!>>. 1'9:90. tot .13" l ength 40" Width ANGLE* 45 70 Notes; Coveraoe Sumrnarv UpSt-Ax UDSt-Circ Dnst..Ax IDoSt-Orc G% 100% 100% 1) Code Coverage lo 1 he max i mum pen::er'ttage o.f the requ i red etamlnaUon volume that is effectively ex amined wilt 1 the qu al lfied exam i na t ion procedure.

2) Best Effort C O"vemg e r e fers 10 the r equired exam i nation volume past the weld ce nterrme t h at is examine d i n the axia l beam d i rection wiUl an A.ppeti dixV l ll demonstra t e d oroced:ure for s ln gle sided coveraae.

Md1i:L."f!

a t-Su ppl e 4ntlll Rcpom Date: "', 'i* o '? ::: ;'jl:/tri

. Suppfemema l Rep , ort Stl m ma ry No ,: S2.C5.11.440 E xa m Iner: Odegard , J e-tfrey 0 Lw cl: ID Exa minar: !olos'9'., Ryan J Lcwei: llL Olhof:

____ l eWJ: NIA <'.X!mmoots

eo 'degree &hear Ml11{!' code covcm11go on down$troam IUQe. Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 40 of 55 lM!T-SSll 1 Flg , 4a28 page 1of1 Aev<n t No.; __ u_r-OG_. _--0_4_1....__

P ilfJP: 2 Q f Axially 1003 ,

100.% (;Qilri:ter c:lo<:kwlse 100% for al totnt ot 100%. WELD 1-08 Sketch o r I'hoto: " f (( 1,i--

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 41 of 55 Supplemental Report flec;ort tro.: Commrirl1a:

Weld HtllTlbetr M 2 Wofd U>" Wefd Length: 33'.Tr' Weld W t<fth: 1.0" Flow E:xam i na.1l-0 n V ol ume Dimensions L e ng'!h mu.I: Wid t h !&:

d Scans (each scan has a wei-:v""'h""'li'"" n-. ... ct-:-o-r-of 7* '10""*0 :::-. 'lo_r_com_* ,....,.....,.....-

u St* Circ ' ons t-Ax 5(}% % T otal Not.e'S: 1) C cvorag.e r efers t o the maxim um p erce n rago al the r oqidred exam rna liol) vO!ume that is ()ffectivel y exain lned wi th the qualified examina tion 2) Best Effort Cov e rage refer s 1 0 IM req t1f r ed e xam i na tio n volume pa.s t the w el d conte1*1i ne that is e.'<amlnec.U n the axial be am di recti on wilh an Append i x VIII demonstrated prooodure f or si<JOO c<iv e r a g l:'l , LMT-SSfr1 Fig;4a29

---

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 42 of 55 !..MT-SS01 Ftg 4 32i3 R eport No: IJT*ll-1 0 3 page , of 1 summary n $2.,CS.ll.702 P g. 6 of t> _,E',,,U Prt!pared b\r: W.

r}'J . We l d Numbe r TI1 i ck.ne ss 2-01 0.543 Date: 11/16/2012 Oll1f.?" *N;M'f.tt.

We l d Wid t h I \\ We l d Le ngth 21" Cj.*_ ____ ..... 1 __ _,__ _ __.o __ __.** .. ____ ..... FLOW 001. ;--2-0 1 CL // ---*----45.,,..* / VA L VE *. ' l -

--PIPE .11 SQ. IN. iREQIJ I R:EO US AND DS S I DES EXAM I NED 100% CF THE REQl Jli RED VOLUME U S SIDE ii>' EXAMINED 0.02 SQ I N. OS SU:>E AXOIRECTlON .02 / .n"' 0.18x 1 00"' U l% B E ST EFFORT NO EXAM FOR 92% t:l$ S t OE AX DlRECi l ON Exa mlnatlort VofUfnf! r>1me1.sions

• l e n gth 21" Width 1.2" ANGLE 45/60 4 5/70 GOL N otes: Coverage Summary Up.St*A x U pSt-Ott: OnSt-Ax DnSt*Grc 1.00"k 0% 100% Cade Covernge Tota l I S O% *Best: Effort Coverage (Max 2S%} Tota i I 4.S% 11 r efers. tc the maximum pen:;-entage of the reQl!ited vo l\!me tha t iiS effectively e Jt.a mlne-d wffi1 he <l'J<ilme to t"e 1'!:!(1 lJlr"rl il!lttimlnat l o n pa s t tti e <.eoterlrne that Is in the-beam direction with .1n Appemt i x VII I d e monst r<1ted _procedure fo r S" lnF!le sld oo c-OVerag*.

Serial No.16-146 Docket No. 50-28 1 Relief Request LMT-SS01 Attachment 2; Page 43 of 55 a Report No. Summary No. Pg. 5 of. 6 UT-1 1-016 S2.C5. 11.719 l'Dominion-Prepa r ed By: Date: TRAV IS THOMAS 412812011 Weld Number We ld Thiatle'.OS

.582" Weld Leng t h Weld Width 1.4" l *1 LJ.. .. "-. .J..2.. . .t.-t.. ... l-.. L..,l ____ ,_I I )

... /

.. 2 r .. "I) .!lrst' ;!) !J'f2* :g .*!i47' *'.!* .CJ !J*'l'l :;i mi.

'.ll? "' 0 :I; 3 Y.e:t.0 0'>0\".t-i V\Hlll*1"'1 !f" 1.16/\'A A t.s "'0.18 SQUARE INC HES W'fl!ESTEW<lRT OOA.Xl"L Sf . **0.10SQ rotAL REOUREI:E OONWl..lil l:E SQ. I N 0.1 0 f 0.21 = ,.4.7 x 100 = 47% ro* /liXU'ii.

SI LE "'OM SO. 0.0110.21=

.006X 1 00=5% iC >VIMAXIAi.S11 JE" o.1 osa. ON. 0.10/0.2 1:.48X1 0Q i=48% Total Examination Area= .39 SQUARE INCHES Exam ina ti on Volvrne DimenS<lons

-Height '187" Length Width ..... J.: 9" Cove r aae SummaJY Re.auireg Sca11s (eachha s a\lle!ghfng factor of 1 00 to r comp le te coverage) Angla Up.St-Gi r e D nShAx Dn-St*Circ 45 J 10 100% 0% 45160 100% 0% 00 R L BEST EFFORT"' 1% 7 0 KL BE;S T EFFORT= 12% , Notes: Code Coverage Total I Bes t Effort Coverage (Max: 25%) To tal t 1) Cede Coverage refers to the maximum percentage of the required e)(amination v olum e lhat is effect i vely examined with the q u alified e.X!lminaoon prooe dure , 2) Best Effort cove r age r e rers t o the r<<iuired examination Volu me past the wekt centerline t h at is exa min ed i n the ax'.ia l beam direction with a n Appe n dix VUI d em onstrated procedure for s!ngle coverage. 50% 1% LMT-S SO I page 1. of I Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 44 of 55 UM-SS01 fig 4a32 page 1af1 Re1>ort N o: UT-14-079 S u: m m ary# S 2.CS.11-7SS Pg. 6 . of 6 by: W. Th oma s Date; 05/0.9/201 4

We l dN1.J m oe r Th ickness 1-0S Wel ti Wi dt h Weld l en gth 0.7 21.25" .. -*-* .. .. _ _._ __ _._ __ .____ _ FLOW 0 , 19" H T X 0.6"'" WIDE or 0.114 SQ; J N.X.2:1 25" LENG TH" : 2 A2 C lJ c IN. "' REQ O I RW VOl U ME l l!SAN'O OS $i!;tES 100%

liOILiJME.U$$i)E . Ei<#.ilNEO 0.034SQ.IN

.DSSID IHOR12.2 5" LENGT H ( *l:le:ST FF Ol'tr. v --.0114 x12..z s* = OA16 C'J.IJ;j.S ISST a'FORT ,4 11}(2.42: *0.1 7x100

• 17%1'ESTE FF ORT E)W.1 O S SIDE F OR 41 ')(>AX OIREC T IOO Ex11mlna.tfon Vnlume D i mens lons*-* He f ,ght 0.19 21.25 Wldlh Coverage Summary Requ i red Scans (each has a weigh i ng factor of 100 for comp l e t e coverage}

1.2." ANGLE VpSt-Ax UpSt-Orc DnS't-J\x D nSt-Orc. 4 5,60 1003 100% 42% 42% 601. "'17% Code Coverage T o t<il I 11% 1 100+ 100+59+42;;301/4;;75.25% *eest EffortCoverag

, e (M ax 25%) Total 1 a.2s%

1) Code refer s to them _ mttm perc;entage o f the required examinatlio n vo l ume that 1$ effec tiv ely exumlned w i th the qua l l!led examination proced u r e , 2) Best Effort Q)verage refu s to t he req u i r<id vo l ume pn rt t th e: weld ce n terl l ne that exa m!Iletl In ttie ax i al beam mrect;ion with an Appendix VIII demonstrated proced 1u e for Sl l')Jil:e Sided rovE!lage. ,f,/!1 S uppl ementaf Report Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 45 of 55 Report No .. page 1 o ft ------P a g 0: 2 o f 3 No.: s2.c s.z1.o o a ............................ Exam i r lif'i r: !iarmon , Byron ;Ji6= l.1j11e l: 11-f>DI Ex;iminer: NfA LovaL N IA Lev-0 1. NfA Comment s: Ske t ch or FLOW PH'f: CL . ... . .. .. .. . . . . . . . ... .. . Q. I 8 SQi J AR E fNC H TOT AL REQU!RfilJ YO UJ M E 0.03 SQ ARE JNCH NOT EX.A.'vllN'ED

• 0-t e: os/, -s/n o ie: 6"°Pc,.;:o O:a l e: Cooe Coverage Total 50 ""cove-* -rag-e-.,.,.(Malc.,,..

.-, """.2""5%,:;;,l"""T,,...ota.,..... 'T'I

..... -tJt 1) Code Cove r age refers to the ma:icimum percentage of the required examination

• vo1'Jme that l s effecfjvely examined wilfl the qua lifi ed examirnition prooodure. 2) Best Effort co ... erage refers to the r equ ire d examination volume past the weld centerfine tn:at i s examined in the axial beam d r reclion with a n Appendix VIII demonslJ:aled rocedure fo r s i re side<! OO'Jlefll

'-e.w Ser i al No.16-146 Docket No. 50-281 Rel i ef Request LMT-SS01 Attachment 2; Page 46 of 55 Supp l emental Report LMT-SS01 Rg 4.:64 page I of 1 R e por t Nn.:

S1<1rnmary S2.C!L2'.1.010 ..;;..;..;.-...--....;..;;..;

,,_ ______ Elmtrt i ntll'

Harmon. Byro n H $ ti'l>lm i ne r: NIA * ,_lJWel: . ll*P'DI Leval: N!A L0V : N!A Ot h er: N f A Wei<:! J.J u mbct .. =-.. -----Weld -""" We l d !.Cl\g1.!I:

_1...., 0 ,,....998.,,..,_"-----Wefd Vildth: --'0'"'"*.6"'......_

____ _ FLOW -o.6"C J-0. !9SQ U AJIB l NOITOTA l. RJ!.Q U JRE D

• O!UM!i: ESS>""'Y"'

0.06 SQL!AAA loo-I NOT H XAMJNF J) ,.

• 0.l>C SQ UA.REIN01 fi l:lST.l:ifl

'OKrC'QVl':.'J<AGE Code Cove r age Total Best Effort CO\fEr.lge (Max 25%) T ota l 1) Code Coverage re fen; to the. max i mum percer11tage of the 'required examination vo lu me tttat f$ effectiv e ly e.'l<amined wrth ttie qua1med exam l natiOO 2) Bes t Effo rt c*owrage mr ers to !tie r equired examinaciioJ' volume past t11'C weki cernerlme tnaf ls exam i ned in the axial beam dire ction with an Appendix VIII demonstrated rocedure f or sin le sided oove e. ------Pa9e-: 2 oJ 3 50% 1 0 Seria l No. 16-1 46 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 47 of 55 Wti ld N u mbs-r Weld Thief.; ess

• !-: I >. ,J,..., I ;) 1) A:lle <l}WJ .. I. FlDN Report No. SUmma.ry N o. P9. 4 of. 4 Prerpared 6';: Da te:

l e gth Weld W id th S2.C521.0 1Z Travi s Tlloma s 41'2112011 11.2 5" IBTt:f'f'OO'f US AX Ll\LSl l:E., D:t otlQ; N SI:) lN 0,10'f0i11 2: 1nl l< 100*91"1. Examlnatfmt Volu m e O ime llSJon s

• He ight .146 1.eng th Wi d t h 1.1" -****--*--Coverage S ummary Requ i red Scans (eac h has a weighing factor of 100 f or co m pl e-te c o vera ge) Up-st-AX U pS l...Circ_

Dn-st-Circ 45 170 0% ' 100% 45/BU 0% *IOQ% 1 0 Best Effort .2'3% **-** Code Coverage Total I 50% Be:sl E.fR>rt Cover.age (Max 25%) T-Otal f 23% NotQ: 1) Code Coverage refe rs to the maximum percentage of the r eq ui red *e x amiMtloh vo l ume that is effecUvely examined with the qua l ified examination p rocedu r e. 2) Best Eftort Coverage r ete r s the requ i red examination volume pas t me weK! oe t er l m e that is examined i n the axial bea m dlrectlon with an Appendix VIII demonstrat ec Proc e dure f o r si ng le $id.ed coveraae. -. *-* L.MT-SS0 1 F.g 4a35 pag e of 1 Serial No. 16-1 46 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 48 of 55 Supplementa l Repor l l MT-SS0 1 page I of l S t.m 1 m a ry No.: S;?, C5.2-1.019 Exo m i n et: Poste r> tlarry E E.Ji:a rnfner; WA O t h er: NIA Comments: LW cc.I.Al l e'le l: IJ*PDI Ii ff I G.Jt AN -

b f"IUtA)V, ... -....----,f.--....

..

/:3; .. .. ". r t-cl.. Repot t l'ID.: -----P age: Da t e: ..

LolhtR Ralt * !/ 0 Bf;ST' i!t: Fdf ff c.6VeR.R}$/! .. .. ..

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 49 of 55 LMT..SS0 1 Fig'4a37 page, 1 at 1 Supplemental Report Al.lport No.: UT P.ag<r.. 2 or 2 Summary No.: S2.CS.i1.023 Exam i n tN: Poslor] Hiln)' E ll*l>DI EY.arn i n M: WA Love!: WA Dale: ---[l/17/oC,;

r r -Othor: NJA lm'GI: NIA tlt:"rff *.

• 52d.l!:'. 2.J ,oZ.J 1/-C' j, &> **: 't " -:--"" -*'"'e...w _ .. _'. * *-r-: ll_o-%--1'. ___ . ttP1t'ftttMI CJ <9 C f *\JALVE . flflt **

{! tJ.M! /!.t> _\/ER.A 6.e __ . .J..lt"""t)_

.. ........ __ 1},p;ff EFHiR.T &vtt.At%E I !it5". 'fa Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 50 of 55 RepOftNo:

UT-12.-110 Summary *rt S2.CS..: U.036* lMf-SSO Fl g!4a38 pag e '1of1 Pg. 4 of 4 Prepared by: W. . hamas 7fT--;0* .** Date: 11/17 /2012 fl.rs fl n Joj'l,.,.,->

.. f'.J . . . jf'..V..Y r' We ld Numbe r Thidmess 0.46" Weld Width We l d length 0.4 .. 2 *****************

• • • • • • • -** 0 FLOW .. 1 IV c 'Ii$.$ T IJO'.EN moo tlJ\l n f::: .... EXi'i li!lt<!l'D 1 00'/, (l'Tl<E OO S lb E P7777J l;YAPA I !;JI t OD'I CY11i': mS I OC t'.'.t:'.L.L'..LJ DE:ll t Hl\:ll'!t. NOQl!C SCAWi \/ERE PE!roll:MEO W S t Of Examinatio n Volu me

-H eight 0.15 3" L ength 1 1" Width ANGLE 45/60 7 0 2 , 2:SM l l!. . .. .. .. . . Coverage S ummary Required Scans has a weighing fuetor of 100 for mmp l e t e CO\ler.a g e) 0",6 1 0 0% 1 0 0% *1 0 0% Co d e Coverage Total I s o% '" B e_st Effort COvernge [Mall 25%)1 Total I 25% 1} C ode Coverage r e f'et:s to* t he i't'l l)\dmu m pere;ent a s;e of the requ:i red. examination volume U14t is *f ec,'ti11eiy examined wltti ttie qualiried exami 1 atilon pt0<:.edote. 2J Bl!st Effort Co v e r;t g e refers. to tihe l'f?Q u l md exam l.natlon volume past the weld c.enterline that ii> i n the a x ial beam dit1!ction with an Appendix V It demonstrated p roce d ure f or single sided a werage.

. ,, , . .. ;' .* ' .. "' 0 * . , '--":"" ....... _......__ . J jD 'EBEd BB£vfl!::l LOSS-1.l'fl-

• , .,-I >* 99 JO a6ed :z luawL.penv lSenbe"tt J9!19'tl BZ-09 'ON 9v -9 *oN 1epes "

• Suppleme.t)tal Report

-'t;J/ ... h-t>SA l.ffrQO-(;QS ol S ' c.:.vl e cw u fJ sr/?.e1ur1

• • .....,,,--+--Ji--,--+--.+

J*

• new.11rr11.El/ftl

_ _J..;._J.:t;;;:.,;;+.*-**--1

$ CS."2 i..tJ3F 10/Jf /ci>.

• i:.l:in11..

C(J.vi!"!l.IM'e . l/3,3 "'/}_ &Br fi::rol'.lt

15. _1; Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 53 of 55 Supplemental Report Summ;uy !W.; S2..CS.21.07ti Exilmincr:

CarraMr; Terry G, ::lE::::__

Ltl'1-0I:

ll*PDl Re'.'i&wae El'J'imlner:

NfA.

WA Slto.Ft-.wfow:

Otl'u:ir:

NIA level: NJA ,<\NII f!eviow:

\ Umitattoo dW;, tv &ll[}pnrt HtMJZ. Upme.w side is fr()Ji'l tt'> l (4;2." t-0t:il).

Om'lnstr<:am side limited by :j;tuxirtrl Ly of pfate fut HOOO:, limittitkni on side fro1!1 7" to &.1." (L 1" tctml.).

roo'i!UI i1Hi'l% eii:aniined.

e:4.2"/1fh996").

fanitali\ln Lt" in m, (l?;1Ullln¢il

0. l"/I (t996"}. Addilio1rnl llll:Jiw.tioo dine to bridging of the tr.ansduccr ot'I tt1e eroow ilitt<.idow, th.islimitatiou was 3" long, rcrnlting inn.% e1rnmlned O"fW,996"), 70" trntlBdutcr oppnsite of these bowc\'<'lr the 1.1

llmifijtloo allows tile 7tl<' only 3.i" -0f scan art.>a C?J?OSite support H(l(t2 ()(' 74% Qf !lhe liml.lliti<>>1 m:Cii-':fbe e;qt1,11volum1H

..

= l)J6M sq. in. one*halH!lis

'uluroo fa 0.0842 i>q. in. 111e 7(}" c1:rrnred O.M7:l sq. in. resulting in 56%

cxmn scnum'ld wiili tlw:74.P.*

Best efi:0rti:overageook1.il.att4 as f<illows:

Nu oo:<lil for cireumrerentlal i:xam.'i.

Axifll not exani.lm:d.

for 38% (100%-62%).

Of this. 3E% unly'74% was e.tamined, resulting in 28% tuef...al_

56% of 28% t.'qll:ifr>

J 5.(18% Axial. downstream not e.xantincil

£;.w 10% (loo'il,;900.£.).

Of this l ()% ooiy 74% wa:; e<<:amineti, r.esu1ting iu ?.4% t-0tat 56% of7.4% equals 4.144% {I + () + 15.68 + 4. 144 l 4 = 4.956% lMf-SS{l1 Ffg4a41

.1 cf:2 Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 54 of 55 Supplemental Report LMT-SS01 Frg4a;1 pag?2 oi2 R;,port No,: __ u_r--0_s_-_12.:...1_

No.; S2.C5.21.IJ79

£!:.:mniru!r:

Ctlttaher, Terry G. fammlnar:

WA Otoor. NIA Con1mems:

Weld Number: Q-OS Weld Thickf"IGSS:

Q.521" Wald Length: 10.9!1§:.

Weta Wklih: 0.55" ----2> Lc-vel: lt-PL'il Level: tUA lzy,'QI:

Examtnalhm Volume rnmenskm$

-Height 0.17" Width 1.CIB" Pagac 4 of 4 Best Effort cOiierage (Max :25%) Tctal 4.956%

1} Code Coverage refers to tho maximum percentage of the requlred examina!iori volume that is cflcctlv4'.'ly examined with tha qualified exam1natkm proceqtiru.

2) Best EflM Coverage refers to the required -0xaml1t>1ttion votumo past lhe wctd centeriino that is examinod in 1ho axial beam dirc*:::tion wlth M Appendix vrrr demoo$tl'efed procodure for single side-ct Se ri al No. 1 6-146 Docket No. 50-28 1 Rel i ef Request LMT-SS0 1 Attachmen t 2; Page 55 of 55 LMT-SS01 Rg4a4 2 page 1of1 a '#Doml lon° Re po rt N.o: U T-12-UO Su m mar y n S2.C: S.2 L119 Pg. 5 of Ei ' bv: W. Th o mas #L-D a e: 1/17/2.0 1 1 µ.. irf-f 'l--v# ,r1µI. r , </1 4/,,,, 0*15 Weld W i d th We l d Number Thickness 0.43" \i eld L en th r 2 I_ f>I E Examlmitlo n Vo l umo O i me0:si;0ns

• 0 1 FLOW lii X i'MIN1'D REOO I RE D \rQ..OOE 00 S I E /;:J. i'.ll RF.ClJO ll E.ES T EFFOU He igtl{ 0 143 Le11gth 11" Coverage Summary 0.5" 11"' 2 Wltl t h 1" Required Stans (each has a. we i i;:hin g factor of 1 00 fo r com p lete coverage)

-. AN GLE l_lpSt*AX UpSt-dr c OnSt-.Ax D nSt-Circ t15 100% 0% 4S/60 100% I I *100% Code Coveraga To tal I 50% llest Effo rt Coverage {Mme 2.5%} To ta l I 2 5% Notes: 1 1 Code Coverage re tq. me maximum of tl rlM'.j ir.tW t!!>:dM i Mti!: u'i ool u me tha t is effectil/ef'{

exomined with the q1.1allfied 2 t Bflst E ffn rl Co-;; -c to th teQu i red e>:am i na t i o11 vo l ume p ast the we l d ce terline th0 I s examln f!d Ii\

a al dire.ction wit h an Aµpe n d[lc V III demo n strated prccP.(lure f or sl11elc $ided c:overag.e.

Attachment 3 RELIEF REQUEST LMT-CS01 EXAMINATION CATEGORY C-F-2 PIPING WELDS ON CARBON STEEL PIPING Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Dominion Surry Power Station Unit 2 4th 10-Year Interval May 10, 2004 -May 9, 2015 Carbon Steel Pipe Welds Relief Request LMT-CS01 Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 1 of 9 Repetitive/Duplicate Relief Requests in Accordance with 10 CFR 50.55 a(g)(5)(iii) lnservice Inspection Impracticality

1. ASME Code Components Affected ASME Code Class: Examination Category:

• Item Numbers: Code Class 2 C-F-2, Pressure Retaining Welds in Carbon or Low Alloy Steel Piping. C5.51, Circumferential Welds: Piping Welds 3/8 in., Nominal Wall Thickness for Piping > NPS 4 C5.61, Circumferential Welds: Piping Welds > 1/5 in., Nominal Wall Thickness for Piping NPS 2 and NPS 4 C5.81, Circumferential Welds: Pipe Branch Connections of Branch Piping NPS 2 Component Identification:

Refer to Table LMT-CS01 Material:

Refer to Table LMT-CS01 2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement ASME Section XI, Examination Category C-F-2, requires 100 percent (%) volumetric and surface examination coverage for Items C5.51 and C5.61 circumferential piping welds. Examination Category C-F-2 requires 100 percent (%) surface examination Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 2 of 9 coverage for Item CS.81 circumferential piping welds that are branch connections.

The alternative requirements of ASME Section XI, Code Case N-460, approved for use in Regulatory Guide 1.147 Rev. 17, allows credit for essentially 100% coverage of the weld provided greater than 90% of the required volume or surface area has been examined.

The alternative requirements of ASME Section XI, Code Case N-663, approved for use in Regulatory Guide 1.147 Rev. 17, eliminates the requirement for a surface examination for category C-F-1 and C-F-2 welds that meet specific criteria.

4. Impracticality of Compliance Pursuant to 10 CFR 50.55a(g)(5)(iii), relief is requested from the essentially 100% volumetric examination coverage requirement of the subject welds due to the . physical configurations that limit the volumetric coverage that can be obtained.

The subject welds were examined with a manual ultrasonic technique using pulse echo ultrasonic instruments and search units to achieve the maximum examination coverage practical.

Examinations were performed using personnel, equipment and procedures qualified in accordance with ASME Section XI, Ap*pendix VIII as implemented by the Performance Demonstration Initiative (POI). No alternative techniques or advanced technologies were considered capable of obtaining complete coverage of the examination volume. TABLE LMT-CS01 -Carbon Steel Pipe Welds Drawing I Line# / ID Weld Limitation I Item Pipe Pipe Thickness Coverage Results I Fig. Material Dia. Achieved System (Nominal)

Comments Interference with two integral 11548-WMKS-attachments 0103A2-4 / ASME Spec. prohibited full 30-SHP-122

/ A672 N75 30" 0.432" 80.8% (MT) surface 4a1 1-22BC I CS.81 I examination I Main Steam NRI I Part of High Energy AUG Program Drawing I Line# / ID Weld Item Pipe Pipe Thickness Material Dia. System (Nominal) 11548-WM KS-0118A1 I ASME Spec. 3-WAPD-110 I SA106 Gr. B 3" 0.300" 0-17 I C5.61 Auxiliary Feedwater 11548-WMKS-0118A1 I 6-WAPD-101 I ASME Spec. 6" 0.432" 0-02A I C5.51 SA106 Gr. B Auxiliary Feedwater 11548-WMKS-0118A2 / 3-WAPD-109

/ ASME Spec. 3" 0.300" 0-108 / C5.61 SA106 Gr. B Auxiliary Feedwater 11548-WMKS-0118A2 / 3-WAPD-110 I ASME Spec. 3" 0.300" 0-109 / C5.61 SA106 Gr. B Auxiliary Feedwater

5. Burden Caused by Compliance Coverage Achieved 40.17% (UT) Best Effort Not Applicable 88.6% (UT) Best Effort Not Applicable 66.7% (UT) Best Effort Not Applicable 65.2% (UT) Best Effort Not Applicable Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 3 of 9 Limitation I Results I Fig. Comments UT-valve to elbow I geometric Indication, dispositioned I 4a2 CC N-663 applied, no surface exam required UT-pipe to flange INRI I CC N-663 4a3 applied, no surface exam required UT-pipe to tee INRI I CC N-663 4a4 applied, no surface exam required UT-tee to pipe INRI I CC N-663 4a5 applied, no surface exam required Compliance with the Code requirements would require extensive modification or replacement of components with a design that would allow full examination from both sides of the weld. This option to rebuild components is considered impractical and could impact plant equipment in a detrimental manner. 6. Proposed Alternative and Basis for Use The subject welds received a volumetric or surface examination to the maximum

• extent practical utilizing the best available techniques at the time the examination was performed.

Additionally, these components are monitored for through wall Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 4 of 9 leakage either by the ASME Section XI System Pressure Test Program required by Section XI, Table IWC-2500-1 Category C-H, for Class 2 components or a visual examination performed weekly as required by the Surry Augmented Inspection Program for high energy lines. None of the pipe or weld material is constructed with Alloy 600/82/182 materials; therefore, there are no primary water stress corrosion cracking (PWSCC) concerns.

There are no known through-wall failures on these welds at SPS2. Any indications were recorded and dispositioned as geometric or construction related. Based on the volumetric and area coverage that was obtained with acceptable results and the visual examinations routinely performed to detect through-wall leakage, it is reasonable to conclude that service induced degradation would be detected.

Therefore, these proposed alternatives provide an acceptable level of quality and safety by providing reasonable assurance of structural integrity of the subject welds. Accordingly, Dominion requests relief in accordance with 10 CFR 50.55a(g)(5)(iii).

7. Duration of Proposed Alternative This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for SPS2, which began May 10, 2004 and ended on May 9, 2015.

Supplemental Report Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 5 of 9 LMT-CS01 Ffg4a1 No.: __ M_T-_OG_-_oo_G_

Stimm<try No.; Si.CS.81.010 Examiner:

_B_ro_w_n-,Ki-w

........

........

.. . II Examiner:

NJA Love!: NIA Site Re11tcw; Dennis-P. Strl()klami other: ru.A.

l.-0ve1:*

NIA ANll Ravl.a-11; Coo'imenls:

Two integral atttlchmerris are limitations for weld 1 *22BC. .skotch bcloY1) Each attachment covars 2"' or !howetd causing a. limitation.

Tho cireumforance length of tho wotd Js 20.a 1 ** Tttt: pGircontago of tho wo!? ttmt wt!S examined ls H Mdllional

• Suorl'alnartllll

!'1\MrL'I Supplemental Report Summary ' EX!'Utllne.t' LDSIGP; Rbbn.rt M "l;}u µ,.AA: Level:: 'U-Plll Examln01:

NIA Leve!: NIA LO'>'m: NIA WELD0-17 C.u/ ccw tW aw Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 6 of 9 LMT-CSIJ1 Fig4a2 cf1 Rept1;! No.: UT*OG-t3a Pogo: ."'.2'-J ot 3. -lt:(t:_ rt*e'-f>t::. Prl.. .. it I 1<> IJP$1 A:-£-Oi '% Ofi5t e1Rl-OP51 c.1Rc-e>"'/11 i>H;S'( CiR.C.'" IOD°lo b l\J$f C. l 11.C. ., l !) 0 '7 0 1. t\ t %

ttft>

Weld Nu m b e r Th i>C kne ss 0-02A 0.435" 2 02A---1 1 E TO 0 Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 7 of 9 Report No: l)

• 4*0 1 9 S um mary# $2.CS.5 1.132 Pg. 4 o f 4 Pre p ared b y: w. T t 1 omas Da t e: 4/2 4/20 14 W eld Widt h We ld L ength 1 2 !FLOW 0.8" 2: 0.as" u.rr-eso F i g 4 a l page 1c'1 rl h T EI U S S I OE E X.AM V QlJr..IE *.C84-SQ IN. X 2!L BS 1.E NGfH* 1 . .95 CUl!l lC IN C HES NO EXM.I f!(Jll JJ7 SQ IN.X 2"Ul"1f T.l\T I O>I -0.1'1 C C , s LI'S, I LJ E J\Xlf\LU I RECTION x 11Xl =n i>'t.AX DIRE C'l'Clti \JS S IVE

• AJl<NGE _________

l<!O E V-0 l u m e Dim e nsions-He[gh t 0.1 45" Le ngt h 20.85" Wld t h 1.3'1 Coverage Summary I R e quire-cl Sca rt s (e ach has a w e i ghing factor Qf 1 00 for complete c overage) ANGlf .,.. .. -* .. UpSt-Ax UpSt*Circ D11S t--Ax DnSt-Cltt 45/60 92.8% 100% 10 0% 61.7% Code Coverage To ta l I 88 1 63 l OOt 100+92..&+Ul.7:;354.S/ 4=:88..6 "'Best Effort C ov erage (Max 25%) T ota l I N/A Notes: .t Code Co vera g re e r to lite m xlmu pen:entagc o f th e required eic;am i nation \*olume tha t Is effec;t lll'e tv exam ned with tlt q u <i l ifrttd C!Xa m i n ation p r oa?dure. 2) Best effo-rt tt!fots to t+.e requl-red vo l vme 1 Pi'$t thewe t d oer:iter l l n.-e th at Is t1 c.:i 1ml ne tJ }n e a xi al beam dlre ctlion *\11th <1n Appe.nd lxVIU demonst;rateo1 l:xarniner:

NJA. Lwet: . tf!A Other: NIA Level: tf/A Sketeh <<Photo: 1!<t/I( 't:1 II* I WELD 0-108 ti t;q.g ... WNK5'-6J J

... 1MA--lr;i8 j l.C. 5' __ (.,,/, 0319 /0 -1.,.7 ... ()(,, Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 8 of 9 U.IT-CSQ1 F!Q4a4 paga1cf1 R0;Jort No.: Ul'.CJiM:lT7 . !>P,,ae: 2 of 2 DD tu: ..,....-'---

Date: . 11/t1/pr...

l:mte: *!!£:id 7tJ .. CU) 3?f. (C.tJ) -+--Jo---+"-+

JJow11ri1u:ilm

_ _,____.__{.""-'."""t-f'IPG

Report Commehls:

WELD 0-109 Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 9 of 9 LMT..iCSD1 fig4a5 pager cf 1 P;igo: 2:-t>f 2 0 .NJ<" ttfJJf<1 ate: Fl"* .. IT Date: JJ/.J!!fo

f. Dat'!ir l.aAt! U.f/f!'1M*llt!

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Attachment 4 RELIEF REQUEST LMT-P01 EXAMINATION CATEGORY C-F-1 AND R-A PRESERVICE WELD EXAMINATIONS Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Dominion Surry Power Station Unit 2 4th 10-Year Interval May 10, 2004 -May 9, 2015 Preservice Pipe Welds Relief Request# LMT-P01 Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 1 of 8 Repetitive/Duplicate Relief Requests in Accordance with 10 CFR 50.55 a(g)(5)(iii) lnservice Inspection Impracticality

1. ASME Code Components Affected ASME Code Class: Examination Category:

Item Numbers: Component Identification:

Material:

Code Class 2 C-F-1, Pressure Retaining Welds in Austenitic Stainless Steel or High Alloy Piping R-A, Risk Informed Piping Examinations C5.21, Circumferential Weld, Piping Welds >1/5 in., Nominal Wall Thickness for Piping NPS 2 and R1 .11, Elements Subject to Thermal Fatigue Refer to Specific Table Refer to Specific Table 2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement Required Method: Surface and Volumetric Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 2 of 8 The alternative requirements of ASME Section XI, Code Case N-460, approved for use in Regulatory Guide 1.147, Rev.17, allows credit for essentially 100% coverage of the weld provided greater than 90% of the required volume has been examined.

10 CFR 50.55a(b)(2)(xv)(A), requires the following examination coverage criteria when applying Supplement 2 to Appendix VIII: (1) Piping must be examined in two axial directions and when examination in the circumferential direction is required, the circumferential examination must be performed in two directions, provided access is available

.... (2) Where examination from both sides is not possible, full coverage credit may be claimed from a single side for ferritic welds. Where examination from both sides is not possible on austenitic welds ... , full coverage credit from a single side may be claimed only after completing a successful single-sided Appendix VI 11 demonstration using flaws on the opposite side of the weld .... 10 CFR 50.55a(b)(2)(xvi)(B) requires that examinations performed from one side of a ferritic or stainless steel pipe weld must be conducted with equipment, procedures, and personnel that have demonstrated proficiency with single-side examinations.

To demonstrate equivalency to two-sided examinations, the demonstration must be performed in accordance with the requirements of Appendix VIII as modified by 10 CFR 50.55a(b)(2)(xvi)(B) and §50.55a(b)(2)(xv)(A).

4. Impracticality of Compliance Pursuant to 10 CFR 50:55a(g)(5)(iii), relief is requested from the volumetric examination coverage requirements for the subject welds due to the physical configuration which limits the volumetric coverage that can be obtained.

For austenitic welds, when the examination area is limited to one side then the examination coverage does not comply with 10 CFR 50.55a(b)(2)(xv)(A) and proficiency demonstrations do not comply with 10 CFR 50.55a(b)(2)(xvi)(B);

full coverage credit may not be claimed. There are currently no Performance Demonstration Initiative (POI) qualified single-side examination procedures that demonstrate equivalency to two-sided examination procedures on austenitic piping welds. Current technology is not capable of reliably detecting or sizing flaws on the far side of an austenitic weld for configurations common to U.S. nuclear applications.

However, POI Performance Demonstration Qualification Summary (PDQS) certificates for austenitic piping list the limitation that single-side examination is performed on a best effort basis. The best effort qualification is provided in place of Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 3 of 8 a complete single-side qualification to demonstrate that the examiners' qualification and the subsequent weld examination is based on application of the best available technology.

The subject welds were examined with a manual ultrasonic (UT) technique using pulse echo UT instruments ahd search units to achieve the maximum examination coverage practical.

Examinations were performed using personnel, equipment and procedures qualified in accordance with ASME Section XI, Appendix VIII as implemented by the Performance Demonstration Initiative (POI). No alternative welds were considered since these are preservice examinations for each specific weld that was reconstructed.

Weld2-08C This is a stainless steel ASME Section XI, Category C-F-1 weld. This weld also received a final liquid penetrant (surface) examination and a radiography (volumetric) examination before return to service. No indications were discovered during any of the examinations performed.

Weld 2-098 This is a stainless steel ASME Section XI, Category C-F-1. weld. This weld also received a final liquid penetrant (surface) examination and a radiography (volumetric) examination before return to service. No indications were discovered during any of the examinations performed.

Weld 1-03A This is a stainless steel ASME Section XI, Category R-A, Class 1 weld, which is part of the Risk Informed ISi Program. This weld also received a final liquid penetrant (surface}

examination and a radiography (volumetric) examination before return to service. No indications were discovered during any of the examinations performed.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 4 of 8 TABLE LMT-P01 -Preservice Examinations Drawing I Line#/ ID Pipe Pipe Weld Coverage Limitation I System I Class Material Dia. Thickness Achieved Results I Fig. Category / Item Comments 11548-WMKS-SI-ASME 50% (UT) UT-pipe to valve I 12A/ NRI /*Also 3-Sl-272 / 2-08C Spec. 3" 0.438" 23% (UT received 100% PT 4a1 Safety Injection I 2 I SA312 Best and RT I C-F-1 I C5.21 TP304 Effort) NRI 11548-WMKS-SI-ASME 48% (UT) UT-pipe to valve I 12A I 3-Sl-272 I NRI I Also 2-09B I Spec. 3" 0.438" 19% (UT received 100% PT 4a2 Safety Injection/ 2 / SA312 Best and RT I C-F-1 I C5.21 TP304 Effort) NRI 11548-WMKS-.

ASME 50% (UT) UT-valve to elbow 0127J2 / INRI I 6-Sl-319 / 1-03A I Spec. 6" 0.562" 26% (UT Also received 4a3 Safety Injection/

1 I SA376 Best 100% PT and RT I R-A I R1.11 TP316 Effort) NRI 5. Burden Caused by Compliance Compliance with the Code requirements would require extensive modification or replacement of components with a design that would allow full examination from both sides of the weld. This option to rebuild components is considered impractical and would cause unnecessary radiation exposure.

Furthermore, plant equipment could be impacted in a detrimental manner. 6. Proposed Alternative and Basis for Use The subject welds received a volumetric examination to the maximum extent practical utilizing the best available techniques.

With the incorporation of the POI for Supplement 2, demonstration for best effort coverage was made for single-sided examination from the accessible side of the austenitic welds. Additionally, the components are monitored for through-wall leakage as part of the ASME Section XI System Pressure Test Program and receive visual (VT-2) examination periodically as required by Section XI, IWB-2500-1, Category B-P, every refueling outage for Class 1 components and IWC-2500-1, Category C-H, every period for Class 2 components.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 5 of 8 None of the pipe or weld material is constructed with Alloy 600/82/182 materials; therefore, there are no primary water stress corrosion cracking (PWSCC) concerns.

No indications were found during any of the examinations discussed.

Based on the volumetric coverage that was obtained with acceptable results, the visual (VT-2) examinations performed routinely and the additional examinations for surface (liquid penetrant) and volumetric (radiography) exams, it is reasonable to conclude that no flaws exist in the new welds. These proposed alternatives provide an acceptable level of quality and safety by providing reasonable assurance of structural integrity of the subject welds. Accordingly, Dominion requests relief in accordance with 10 CFR 50.55a(g)(5)(iii).

7. Duration of Proposed Alternative This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for Surry Power Station Unit 2, which began May 10, 2004 and ended May 9, 2015.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 6 of 8 Report No. Summary No. Pg. 6 of. 6 UT-11*001 S2. C5.21 .348 Prepared By: Date: TRAVIS THOMAS 41'26/2011 Weld Number Weld Thlck11ess I .2..0SC *' l .... ..; ..

I ' I ' I 3 2 t.b<u.iunvfa l.I A;'iJ 3J ,ua 4} ,!ii{)

fl.CW 4--Weld Length Weld Width l CTAL EXMUiAT!<N MCA ... u $'l\JAAF.1Jl.i:H'::S 11" .75" e6T EFFCffiTGJ>.XJALOCJEu, 1t OCUI>.!£ KH:S ll:r.>ES ll1tl ll1l<>>3.9?X 11DuE<Z)I.

j:JC""'

Examination Volume .Dimenslons

-Halgllt .146"

• Length 11" VVi'dth *t.2.S" Coveraae Summary Required Scans (each has a weighing fa.otor of 100 for complete ccnerage)

Angle Up:St-Clrc DnSt-Ax Dfl-St-Ci.rc 45/70 100% 0% 45160 100% 0% 70 Bestaffort 23% Code Coverage Total I

-Best Effort Coverage {Max25%} Total 23% 1 Notes: 1) Code Coverage refers to the maximum percentage cf the required examination volume that is effecti*1e1y examined with lhe qua1lfled exam1natlon pmcedure.

2) Best Effort Covarage raters to tile required examination VOiume past tile weld centerline thaUs examlned In the axial beam direction wilti an Appendix:

VI If demonstrated pn:icedum for singFe sided covera90.

LMT-POt Fig4at page 1 nf !

Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 7 of 8 Report No. Summary No. Pg. 4 of. 4 UT-11-0B.2 s:tC5:21.349 Prepared By: Date: TR.AVIS THOMAS !rf612011 Weld Numbar Wohl 2-096 .438" Wekl Length Weld Width 11.25"

.. *************************

.. ****************************************************************************-,*--.

• ' 1)A't'r :;i)A>'W 3).400'"'

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.. , -""'0<X; 2

<-.ICE.NOT AOi!EVf!t),,1%

l,ISAXJAL, !;!Pe-!il:l%

VOLlNE fil<AMNED SSSTEFFOftT tN. l'.OTAl.RSlUlreDDSAXIALS!CE.

• 0.12$0. IN OB/0.12= 7.5X 1ill=15'A'.

il'.':..'H\$

OOO/ ll12."' .2>X 'IW= 21:4 TOTAL EXAMINA 110N AREA= 2.2 SQUARE INCHES Examination Volume DfmenslCf1s Height _Y!L._ Length 11.25" Width A,ngle 45170 45160 70 B ST EF ORT= 19% Notes: Code Coverage Total Best Effort Coverage (Max: 25%} Total 1) Code Coverage refers to the maximum percentage of the required examination volume that Is effeci:i'lety examined with the qualified examination prcceuure.

2) Best Effbrt Coverage refers to tile roqu1reel examination volume past the weld cenwrtlne:

that ls examined hi the axial beam direciion with an Appendix VIII demonstrated rocedure for sin le sided covera e .. *1.3" 48% 1.9% LMT-Pi!t Fig4a2 page t of1 Supplemental Report SummaryNo.:

S2.Rt.H.92G Exomfnar:

Sistek, Robert P Level: U-POI Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 8 of 8 LMT-?01 Fig4a3 Rspc;:rt No,: UT*0&-156 Page: :;\ -Of 2 Date: i=.ltrnnlner.

NA Lovel: Situ Date: . Level: __ ANH Other: t\!'A

• Wald Number \ 'C ii fi We!d Thickroes's 0.6> .!.. ' Weld t,, V.

• Flow -----E:{)

Code Coverage Total __

(5-0%

Best Effort Coverage Total lb o/a * (50% max)

Attachment 5 Serial No.16-146 Docket No. 50-281 RELIEF REQUEST LMT-C01 EXAMINATION CATEGORY 8-8 PRESSURIZER SHELL-TO-HEAD CIRCUMFERENTIAL AND LONGITUDINAL WELDS Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Dominion Surry Power Station Unit 2 4th 10-Year Interval May 10, 2004 -May 9, 2015 Serial No.16-146 Docket No. 50-281 Relief Request LMT-C01 Attachment 5; Page 1 of 8 Pressurizer Shell-to-Head Circumferential and Longitudinal Welds Relief Request LMT-C01 In Accordance with 10 CFR 50.55 a(g)(5)(iii)

1. ASME Code Components Affected Weld No.: Drawing: ASME Class: ASME Category:

ASME Item:

Description:

Weld No.: Drawing: ASME Class: ASME Category:

ASME Item:

Description:

1-07 11548-WMKS-RC-E-2 Code Class 1 8-B 82.11 Pressurizer Shell to Head Circumferential Weld 1-02 11548-WMKS-RC-E-2 Code Class 1 8-8 82.12 Pressurizer Longitudinal Shell Weld 2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI

3. Applicable Code Requirement Serial No.16-146 Docket No. 50-281 Relief Request LMT-C01 Attachment 5; Page 2 of 8 The 1998 Edition with 2000 Addenda of ASME Section XI, Table IW8-2500-1, examination Category 8-8, Item 82.11, requires volumetric examination of essentially 100% of the circumferential shell to head welds. Table IWB-2500-1, Category 8-8, Item 82.12, of the 1998 Edition with 2000 Addenda requires volumetric examination of one foot of the longitudinal weld that intersects the selected circumferential shell to head weld. 4. Impracticality of Compliance The pressurizer is covered with an insulation support ring (Figure 1 ). The insulation support ring is 6 inches wide where examination interference is encountered for weld 1-07. As seen in Figure 1, this insulation support ring and a power operated relief valve support prevent complete volumetric coverage of both the upper circumferential head weld arid the intersecting longitudinal weld 1-02. 5. Burden Caused by Compliance Total removal of the support ring at the mechanical connections is considered impractical due to the extremely high dose rates in the pressurizer area. Total radiation dose to perform removal of the inte.rfering support and to perform the examination was estimated to be 13.9 man-rem. This includes expended dose necessary for various crafts including mechanical maintenance, insulators, rigging crews, and the Non-destructive Examination (NOE) workers. Partial removal of the support ring could allow some increased coverage; however, the actual increase would be very small in relation to the entire weld length. This is not a viable effort when considering consequential disturbance of interconnected cross supports and the welded connections to safety and power operation relief valve supports.

Any removal of the mechanical connections or forced spreading apart of components would create a risk of misalignment and possibly warp the structure.

Furthermore, civil engineering proposed that cutting the support could be necessary for removal; thus, destroying the support ring. 6. Proposed Alternative and Basis for Use Examination of pressurizer shell welds 1-07 and 1-02 was performed during the third inservice inspection interval; as documented in Dominion letter dated March 18, 1994 (Serial No.94-006) and approved by NRC letter dated August 30, 1995. The previous obstructions (details shown in Fig. 4) were verified during performance of the fourth interval examinations for welds 1-07 and 1-02. Documentation of the Serial No.16-146 Docket No. 50-281 Relief Request LMT-C01 Attachment 5; Page 3 of 8 fourth interval examinations are shown in Fig. 2 and 3. The total coverage reported for the fourth interval is as follows: Weld 1-02 50% Weld 1-07 82% No additional ultrasonic examination techniques would provide meaningful additional data on this cladded material for the examination volume not attained.

The pressurizer receives a visual (VT-2) examination every refueling outage as required by Section XI, Table IWB-2500-1, Category B-P, for Class 1 components.

Any effort to achieve greater coverage would be impractical creating risk for component damage or destruction and excessive personnel dose. It is proposed that the percentage coverage obtained be considered as meeting Code requirements.

7. Duration of Proposed Alternative This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for Surry Power Station Unit 2, which began May 10, 2004 and ended on May 9, 2015.

14N!R Exam:inatkm rnterterence Lllustration

'llfeld 1-02 Behind Support Unit 2 Pressurizer Insulation Support Frame Serial No.16-146 Docket No. 50-281 Relief Request LMT-C01 Attachment 5; Page 4 of 8 LMT;.c-01 Fig1 page1of2 Ring Cormedian Weld1-02 / lns'llfatlon Supped Ring PORV Support SECTION A-A Weld lnspeclion Area \..... .lnsulaOOJ!

Support Ring Pressurizer ShE!l Serial No.16-146 Docket No. 50-281 Relief Request LMT-C01 Attachment 5; Page 5 of 8 u.rr .. au fig t page2rof2 UT Vessel Examination SltcJUnU:

$uny f P:ooadure;

__ _*N_D_E_*_U_T._7_oz

__ Outage No .. : ....... .._s_2,_R_2s

__ Praoedl.lfe Rev.: 4 Summery t\lo.: ___ s_.z._a_2.._.1_.i._0_0_1

__ _ Report No.; UT*14-093 Wotl;scope:

!St Paga; 1 cl 1 C<:>de: Cat./Jtem:

___ ___;;B...;*aJ_a_2._12_.

---

PZR.47 Drtll'iin9 ,Ni:>.: Oei;cription:

LONGITUDINAL SHELL WELD Systr:rn 10: RC

......

Sizefi.ength:

3.S"/12

ThlcknesslD!ameter 4.315" f 92" Refer to U.TRNO Dmf SlartTime:

2149 ------Exenilnation Surface: Inside CJ Qutskle Wo Location:

___ w ... 'O""l""'cl'"'C""c"'n:.:.:to""r-"t""ln"'o.__

__ couptant:

Sena! No.: ____ .4 ... o3 ... o""s"'oe>

... s""5""1. __ _ Surftice Temp.: __ 1_1 __ °F Get Report No.:

... al.._*1._4'-01.._*

....... 7._CA .... .,..L.,.*.._14._ .

Angle Us.ed us 0 45 45.I 6(1 111dica!lort(s);

Yes D Comments:

141A NIA CWi;fj Examined 50% due to ballyl:iaml

• . AU araa.s Wlltc scanned tci the extent possible, with ttieO", 45*, and G{I transtlueem.

Reautts: NRI !i'.] RIO Geom[] No l\llA 8aminer lwol D*f'Oi re Date Hacller, Joilatllon 51612614 Yes .. CCW2j Finish Time: 2414 Batch No.:

.... o __ Examiner L;;;irel ll*POl Dale Harm<>11, 6yrori H 51612.014

'* 1il Olhc<t L.evei NIA

'! :n NIA a.a o IJT Ve!i:f)tl UT Vessel Examination

$1t<llllJrtit:

Swry I Procuduru:

ER-AA-NDE-UT-702 Outago No.: __ S2_*._.R_Z_6

__ Slllnmary No.: St.a2. n.002 Repor1 No.: UT*14.fl92

---

Pti>;:;cdure RIYI'.: . 4 W or lw cope: 1$1 Work Order No.; 381033'T9811/NOER14-049 Page: of 1 Cat.lltem:

B*BIB2:f1 Location:

PZR47 Dramng No.: DescripUoo:

CIRC SHELL TO HEAD WELD Systom IO; RC Component

!O: H54S*Wf111KS.RC*Ei*2r1*07 Sizell.englh:

3.5"1290.25" Limitations:

S!M Time: 2149 Finish Time: 2414 ----------Examination Surfao;:e:

Inside 0 Surface Condition;

--=G..,.r

... au""n""d::..Fl=-=u.:;;.sh...._

___________________

_ Lo Location:

2'.el'o Datum Point Wo Location:

___

__ Couplar.t:

Soundsafq Te:mp. Tool Mfg_: __ ...;;S:;.:EA=LE=o'""u

... 111 .. rr ....... __ Serial t-fo.; ____ 40"""'3"'09._0,,.,0S=t:ii..._

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.. F Ca.I. Repi:wt tofu.: . .A!lgle Usoli Scanning dB Jndication(s);

Yes O Comments:

60 OOT WI\ CW2] CCWl!2J Batch No.; ___ _..t2 ... 1.,.2..,.0

__ P:ruvi6U1l

¢bi>ifUCtl¢11$

Ut.Uft'!!)

this examirnitiQn.

All areas Wlml examiMd to th!? eXl91'1t possible With 0°, 45" and 60" trarniducers, accumulating to aprox. 82%. 100% {;Ji <:ircumfa:ronti:al he@d weld waa eic.aminend.

NRI !ill Percent OI Co><era9e Ob!ained > $0%: Level I.I-POI Hacker, Jonathon Examiner Level ll*POI Harmon, Bynm H Other Lovet NfA UT Vessel Eiraniiil!i:ioo RJ 0 Geom O No re

'll' DMUI 11548-\JMKS--RC-E-2 PRESSURI?ER HEAD 275,4

• wELD 1-02 TD SHELL & 1-07

• o* IlATtJH -2:34.3' I ' l' i:-:l.!I' Mil) 2-6.5' flMI! rm: Cf" "'t1.ll ll' FRO!'! COlTERl.lNE W VtLlJ 1/40 SCALE RT3397A 21H.9' 164.8' 126.3' -BS.5" r-f--55,5'::] I [

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Attachment 6 RELIEF REQUEST LMT-C02 EXAMINATION CATEGORY 8-D PRESSURIZER NOZZLE INNER RADIUS SECTION Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Dominion Surry Power Station Unit 2 4th 10-Year Interval May 10, 2004 -May 9, 2015 Serial No.16-146 Docket No. 50-281 Relief Request LMT-C02 Attachment 6; Page 1 of 5 Pressurizer Nozzle Inner Radius Section Relief Request LMT-C02 In Accordance with 10 CFR 50.55a(g)(5)(iii)

1. ASME Code Components Affected Mark No.: Drawing: ASME Class: ASME Category:

ASME Item:

Description:

14NIR 11548-WMKS-RC-E-2 Code Class 1 8-D 83.110 Pressurizer Shell to Head Circumferential Weld 2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement The 1998 Edition with 2000 Addenda of ASME Section XI, Table IW8-2500-1, deleted the requirement to examine the nozzle inner radius (NIR) sections.

ASME item 83.110 actually addresses the pressurizer nozzle-to-vessel welds. The NI Rs are not welds. This item number assignment was used as it has the closest description for the pressurizer NI Rs in the 2000 Addenda of Section XI. 10 CFR 50.55a(2)(xxi) places a condition on the requirements of ASME Section XI, Table IW8-2500-1, Examination Category 8-D. The condition mandates that the 1998 Edition of ASME Section XI be used, which requires examination of the Serial No.16-146 Docket No. 50-281 Relief Request LMT-C02 Attachment 6; Page 2 of 5 Class 1 NIRs by Items 83.120 and 83.140. Either an ultrasonic or enhanced visual examination shall be performed.

4. Impracticality of Compliance The pressurizer is covered with an insulation support ring as indicated in Figure 1, page 2. As can be seen in the figure, the support ring interferes with completion of a full volumetric examination around the circumference of the 14NIR. 5. Burden Caused by Compliance Total removal of the support ring at the mechanical connections is considered impractical due to the extreme high dose rates in the pressurizer area. Furthermore, this is not a viable effort when considering consequential disturbance of interconnected cross supports and the welded connections to safety and power operation relief valve supports.

Any removal *of the mechanical connections or forced spreading apart of components would create a risk of misalignment and possibly warp the structure.

Civil engineering proposed that cutting the support could be necessary for removal; thus, destroying the support ring. 6. Proposed Alternative and Basis for Use The five remaining pressurizer NI Rs, 1 ONIR, 11 NIR, 12NIR, 13NIR and 15NIR, were examined during the fourth interval with no recordable indications.

15NIR on the pressurizer surge nozzle is addressed by NRC approved relief request CMP-001 Rev. 1. (Reference NRC letter and included Safety Evaluation Report dated June 5, 2007). Examination requirements are covered by the Class 1 system pressure test performed every refueling outage. NI Rs 10, 11, 12 and 13 were volumetrically examined meeting code coverage requirements.

The six pressurizer NIRs receive a visual (VT-2) examination every refueling outage as required by ASME Section XI, Table IWB-2500-1, Category B-P, for Class 1 components.

Any effort to achieve greater volumetric coverage on 14NIR would be impractical and would create the risk of component damage or destruction as well as excessive personnel dose. . It is proposed that the percentage coverage obtained be considered acceptable for meeting the Code requirements.

7. Duration of Proposed Alternative Serial No.16-146 Docket No. 50-281 Relief Request LMT-C02 Attachment 6; Page 3 of 5 This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for Surry Power Station Unit 2, which began May 10, 2004 and ended on May 9, 2015.

Sum mary No.: S2.B3.110.0 05 Ei.:ll.mintlr. Nel$0t\, l(l rkhand Examir.er:

_N ... IA...._ ___________ Oth er:

______ ...,,.. ______ _ 65 D'EG +!* J,4 SCAN L IMITAT I ON S etcll o r Pho to: TOTAL REQIJ I RED SCAN ,Altl!A = 53S.6 SQ , I N TO TAL AREA OF LI MITATION "' 106 SQ , IN S 3 S.5* l06 = 429.6 / 535.6 = 0.80 >i 100 =Bo% A.ddiliWW

• Suppl em en tal Reports Supplemental Report Re port No.: Page: Leve l: 11 *PDI L9111!!l: NIA Si le R e view; L filVe l: N I A .AN ll Re view:

I L_J_'L..511.i D UT-14-096 2 of 2 Dale; Oate: 5:' / ;t..,. ::u f Dav.;; f" L!7 II¥

• 1 ,;

14N!R Examination Interference tllusirafon Weld 1-02 Behind Support Serial No.16-146 Docket No. 50-281 Relief Request LMT-C02 Attachment 6; Page 5 of 5 Un[t 2 Pressurizer Insulation Support Frame LMT-CD2 Flg 1 page2Df2 lnsulati'on Support Frame Insulation Support Ri119s . { \..... l Ririig Connection Welded {Typical)

Attachment 7 RELIEF REQUEST LMT-C03 EXAMINATION CATEGORY C-C MAIN STEAM INTEGRAL ATTACHMENT H001-1 Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281

1. 2. Dominion Surry Power Station Unit 2 4th 10-Year Interval May 10, 2004 -May 9, 2015 Serial No.16-146 Docket No. 50-281 Relief Request LMT-C03 Attachment 7; Page 1 of 5 Main Steam Integral Attachment H001-1 Relief Request LMT-C03 In Accordance with 10 CFR 50.55a(g)(5)(iii)

ASME Code Components Affected Weld No.: H001-1 Drawing: 11548-WMKS-01 OOD1 ASME Class: Code Class 2 ASME Category:

C-C ASME Item: C3.20

Description:

Integral Attachment Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement ASME Section XI, Examination Category C-C, Item C3.20, requires surface examination on 100% of the weld area selected for examination.

The alternative requirements of ASME Section XI, Code Case N-460, approved for use in Regulatory Guide 1.147, Rev. 17, allows credit for essentially 100% coverage of the weld provided greater than 90% of the required volume or area has been examined.

4. Impracticality of Compliance Pursuant to 10 CFR 50.55a(g)(5)(iii), relief is requested from the essentially 100% examination area coverage requirement of the subject welds due to the geometric configuration and obstructions which limit the surface examination coverage.

Serial No ..16-146 Docket No. 50-281 Relief Request LMT-C03 Attachment 7; Page 2 of 5 This integral attachment is part of a spring can support system. The rod seen in the attached typical figures, including the photograph in Fig 3, extends to a spring can above the main steam pipe. Due to interference with the support rod and the narrow opening of the integral attachment, examination of the interior welds is limited. 100% coverage was achieved for the welds on the outside of the integral attachment for a total of 39 linear inches. The inside bottom 4 inches and two 11-inch side welds could not be reached to perform a successful surface examination. nine inches of the total 65 linear inches were examined for examination coverage of 60%. 5. Burden Caused by Compliance . . . The purpose of nondestructive examination (NOE) is to perform inspections without destroying the component.

Disassembly of a component

• solely to perform a Section XI examination is not a requirement.

Any attempt to achieve greater coverage on the interior welds of this integral attachment would require disassembly of the spring can hanger and rod, which would require seismic support analysis and most likely mandate a temporary support system installation for the 30" main steam line while this support was rendered inoperable.

Even if the support were disassembled, it is improbable that a meaningful surface examination could be achieved due to the physical constraints of the narrow opening. 6. Proposed Alternative and Basis for Use This component receives periodic visual (VT-2) examinations in accordance with Category C-H, which should detect any through-wall leakage in the ina_ccessible areas. It is proposed that the percentage of surface coverage obtained with no recordable indications, in addition to the periodic visual examinations, be considered as meeting Code requirements.

7. Duration of Proposed Alternative This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for Surry Power Station Unit 2, which began May 10, 2004 and ended on May 9, 2015.

Supplemental Report S\Jr'l'I Mitiit Y N¢.: ..... s2 ...... C._3....,.20.._._oo

.... Serial No.16-146 Docket No. 50-281 Relief Request LMT-C03 Attachment 7; Page 3 of 5 u.rr-cro f i g: l page 1 of RGJ:Xl it o.: _u_r_-oo_._-o_oa_ r> g&; 2 Of 2 N/}-flre.min:i;ir:

C u 1Taoo, J eff rex T Le*1C!I: II Rev1e¥1er.

......,..7:11'-f" .. .. *-.... _ ... ,,i/) ___ _ E:JQ\miner::

_N/.;..A_* --------Le vel: . t4/A Ste Review: -. Da te: D.*.U. *l*e:* _* __ Othl!I!: .NIA Level: NIA ANl l Review: : ? Com1noots:

60 %Colf0lago Obtatne<l ( TQtal We rd Length 65 *Total Length Examined 39") See Pholo Below. (Nor.

J(' R1}lhr s __

• _1d_t£ Ii L{FT t./ f>o 1/aM (iNS i Df) Ske t ch or Photo: Typrcal ct th i s Integral .Atlac'hment f.fltPJ iNEO 13..S I ( h1 Lii.FT .S, 1 dii:

• , POWEA INDUST>>Y GltOOP l!l Y OAT£ p PLAN Serial No.16-146 Docket No. 50-281 Relief Request LMT-C03 Attachment 7; Page 4 of 5 LMT-003 F'{l.2 page* 1 al 1 fM.Q£0 *. Fe'<s f STRV ,C T. arEt<I.. AS P£1(. 1154.8"! F$

• 1"4.F, t.lt#LES'S

• cfr14ER: WISE Nt.'>TE !) ft. $.Qx: GR-FIG.. 98 Sf"Z£ 1"7 , TYPE A (Typ) PIP£ AYTAt;:.J.1., Ai> PER A U548* J \'( (TV*P SC.TH SJD.ES) T tT'I,.£ .. -SA p. }Of-t:>o r H 5 4 8 -F" P

• 202A Serial No.16-146 Docket No. 50-281 Rel i ef Request LMT-C03 Attachment 7; Page 5 of 5 Typ i cal o f Mai n Steam Ha n ger Attachment H001-1 and HD01-2 LMT-COS fig 3 1cX1 Attachment 8 RELIEF REQUEST LMT-C04 EXAMINATION CATEGORY C-C MAIN STEAM INTEGRAL ATTACHMENT H001-2 Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Dominion Surry Power Station Unit 2 4th 10-Year Interval May 10, 2004 -May 9, 2015 Serial No.16-146 Docket No. 50-281 Relief Request LMT-C04 Attachment 8; Page 1 of 5 Main Steam Integral Attachment H001-2 Relief Request LMT-C04 In Accordance with 10 CFR 50.55 a(g)(5)(iii)

1. ASME Code Components Affected Weld No.: Drawing: ASME Class: ASME Category: ASME Item: Descript i on: H001-2 11548-WMKS-01 OOD1 Code Class 2 C-C C3.20 Integral Attachment

2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement ASME Section XI , Examination Category C-C, Item C3.20, requires surface examination on 100% of the weld area selected for examination. The alternative r equirements of ASME Section XI, Code Case N-460, approved for use in Regulatory Guide 1.147 , Rev. 17 , allows credit for essentially 100% coverage of the weld provided greater than 90% of the required volume or area has been examined.

4. Impracticality of Compliance Pursuant to 10 CFR 50.55a(g)(5)(iii), relief is requested from the essentially 100% examination area coverage requirement of the subject welds due to the geometric configuration and obstructions which limit the surface examination coverage. This integra l attachment i s part of a spring can support system. The rod seen i n the attached typical figures , including the photograph in Fig. 3 , extends to a spring can Serial No.16-146 Docket No. 50-281 Relief Request LMT-C04 Attachment 8; Page 2 of 5 above the main steam pipe. Due to interference with the support rod and the narrow opening of the integral attachment, examination of the interior welds is limited. 100% coverage was achieved for the welds on the outside of the integral attachment for a total of 39 linear inches. The inside bottom 4 inches and two 11-inch side welds could not be reached to perform a successful surface examination. nine inches of the total 65 linear inches were examined for examination coverage of 60%. 5. Burden Caused by Compliance The purpose of nondestructive examination (NOE) is to perform inspections without destroying the component.

Disassembly of a component solely to perform a Section XI examination is not a requirement.

Any attempt to achieve greater coverage on the interior welds of this integral attachment would require disassembly of the spring can hanger and rod which would require seismic support analysis and most likely mandate a temporary support system installation for the 30" main steam line while this support was rendered inoperable.

Even if the support were disassembled it is improbable that a meaningful surface examination could be achieved due to the physical constraints of the narrow opening. 6. Proposed Alternative and Basis for Use This component receives periodic visual (VT-2) examinations in accordance with Category C-H, which should detect any through-wall leakage in the inaccessible areas. It is proposed that the percentage of surface coverage obtained with no recordable indications, in addition to the periodic visual examinations, be considered as meeting Code requirements. 7. Duration of Proposed Alternative This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for Surry Power Station Unit 2, which began May 10, 2004 and ended on May 9, 2015.

Supp J en enta Report No.: _s ..... 2._c3_..z_o_ ... 004 ....... _____ _ Emm inoc C ur

• o, J'llffrey T Serial No.16-146 Docket No. 50-281 Rel i ef Request LMT-C04 Attachment 8; Page 3 of 5 l.JMT-Cll4 g 1 page 1Of1 EW.ll r . _t_llA________ . *el: N IA Sit e-R'.!'*JeW:

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• t6J-l Serial No.16-146 Docket No. 50-281 Relief Request LMT-C04 Attachment 8; Page 4 of 5 IMS£P. fia's f STIHJC.1'*

S"t'UL At. l(S'f.8-F'S-14.F, Uloll..ES<:i

<>'l°J.f k WIS* NoTS() GR-FJG. 9& SJZE 17, TYPE A (TY.I>) L!MT-0 1114 F lg 2 page 1 Of1 PlPG. ATTA<;H. A'S f>ri.R* 11 t;4--8w P'P ll< I l 5-1.8 .. MKS ... JOO It S 4.B ... F ?*

Serial No.16-146 Docket No. 50-281 Relief Request LMT-C04 Attachment 8; Page 5 of 5 Typica l o f sin St e am HamJ er l nte.gml Attach ient O 1-and ' 001-2 MT-co4 g3 VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 U.S. Nuclear Regulatory Commission Attention:

Document Control Desk Washington, DC 29555 May 5, 2016 VIRGINIA .ELECTRIC AND POWER COMPANY SURRY POWER STATION UNIT 2 ASME SECTION XI INSERVICE INSPECTION PROGRAM Serial No. NLOS/GDM Docket No. License No. 10 CFR 50.55a 16-146 RO 50-281 DPR-37 RELIEF REQUESTS FOR LIMITED COVERAGE EXAMINATIONS PERFORMED IN THE FOURTH 10-YEAR INSERVICE INSPECTION INTERVAL Virginia *Electric and Power Company (Dominion) performed inservice inspection (ISi) examinations at Surry Power Station Unit 2 for the fourth 10-year ISi interval that began on May 10, 2004 and ended on May 9, 2015. As indicated by the interval end date, a one year interval extension was applied as allowed by ASME Section XI IWA-2430(d).

During the inspection interval, certain inspected components received less than the required examination coverage due to physical obstructions and limitations imposed by the original design and the geometry of construction.

Accordingly, pursuant to 10 CFR 50.55a(g)(5)(iii), Dominion requests relief for the limited component examinations on the basis that the required examination coverages were impractical due to physical obstructions and limitations imposed by design, geometry, and/or materials of construction of the subject components.

The specific relief requests, including the technical basis for each request, are provided in Attachments 1 through 8. These relief requests have been reviewed and approved by the station's Facility Safety Review Committee.

If you have any questions or require additional information, please contact Mr. Gary D. Miller at (804) 273-2771.

Sincerely, Mark D. Sartain Vice President

-Nuclear Engineering Commitments made in this letter: None Attachments:

Serial No.16-146 Docket No. 50-281 Relief Requests -Fourth ISi Interval Limited Coverage Examinations Page 2 of 3 1. Relief Request LMT-R01, Category R-A, Class 1 Stainless Steel Risk Informed Welds 2. Relief Request LMT-SS01, Category C-F-1, Stainless Steel Pipe Welds 3. Relief Request LMT-CS01, Category C-F-2, Carbon Steel Pipe Welds 4. Relief Request LMT-P01, Category C-F-1 and R-A Preservice Pipe Welds 5. Relief Request LMT-C01, Category B-B, Pressurizer Shell to Head Circumferential and Longitudinal Welds 6. Relief Request LMT-C02, Category B-D, Pressurizer Nozzle Inner Radius Section 7. Relief Request LMT-C03, Category C-C, Main Steam Integral Attachment H001-1 8. Relief Request LMT-C04, Category C-C, Main Steam Integral Attachment H001-2 cc: U.S. Nuclear Regulatory Commission, Region II Marquis One Tower 245 Peachtree Center Avenue NE, Suite 1200 Atlanta, Georgia 30303-1257 NRC Senior Resident Inspector Surry Power Station Serial No.16-146 Docket No. 50-281 Relief Requests -Fourth ISi Interval Limited Coverage Examinations Page 3 of 3 Ms. K. R. Cotton Gross, NRC Project Manager -Surry U. S. Nuclear Regulatory Commission One White Flint North Mail Stop 08 G9A 11555 Rockville Pike Rockville, Maryland 20852 Dr. V. Sreenivas, NRC Project Manager -North Anna U.S. Nuclear Regulatory Commission One White Flint North Mail Stop 08 G9A 11555 Rockville Pike Rockville, Maryland 20852 Mr. R. A. Smith Authorized Nuclear Inspector Surry Power Station Attachment 1 RELIEF REQUEST LMT-R01 EXAMINATION CATEGORY R-A Serial No.16-146 Docket No. 50-281 RISK INFORMED PIPING WELDS ON STAINLESS STEEL PIPING Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Dominion Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 1 of 27 4th 10-Year lnservice Inspection Interval , May 10, 2004 -May 9, 2015 Risk Informed Pipe Welds Stainless Steel: Non-Alloy 600/82/182 Relief Request LMT-R01 Repetitive/Duplicate Relief Requests in Accordance with 10 CFR 50.55a(g)(5)(iii) lnservice Inspection Impracticality

1. ASME Code Components Affected ASME Code Class: Examination Category:

Item Numbers: Component Identification:

Material:

Code Class 1 R-A, Risk Informed Piping Examinations R1 .11, Elements Subject to Thermal Fatigue R 1.16, Elements Subject to lntergranular Stress Corrosion Cracking Refer to Specific Table Refer to Specific Table 2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement The examination requirements for piping welds for the Surry Power Station Unit 2 (SPS2) fourth 10-year inservice inspection (ISi) interval were governed by the Risk Informed (RI) lnservice Inspection Program as proposed by the Virginia Electric and Power Company letter dated May 13, 2004 (Serial No.04-272), "Virginia Electric and Power Company, Surry Power Station Unit 2, ASME Section XI Fourth lnservice Inspection (ISi) Interval Update Risk Informed lnservice (RI-ISi) Program," and approved by NRC letter dated August 8, 2005 (Serial No.05-555), "Surry Power Station, Unit 2 -American Society of Mechanical EngineersSection XI Informed lnservice Inspection Interval Update for the Fourth 10-Year Interval." The Serial No.16-146 Docket No. 50-281 Relief Request LM;T-R01 Attachment 1; Page 2 of 27 SPS2 fourth interval Risk Informed (RI) Program is applicable to Class 1 pipe welds only. The pipe welds addressed by the Risk Informed Program are assigned to a specific segment with common system, operating conditions and failure mechanism.

The number of welds per segment varies. The welds discussed in this section were selected for volumetric examination by the Risk Informed Program due to the assigned item numbers: R1 .11 for thermal fatigue or R1 .16 for intergranular stress corrosion cracking (IGSCC). Neither the approved relief request nor the NRC Safety Evaluation for the Risk Informed Program addressed an alternative for limited examination coverage.

Therefore, the rules for ASME Section XI shall apply when limitations are encountered due to the design, geometry and materials of construction of the component.

The alternative requirements of ASME Section XI, Code Case N-460, approved for use in Regulatory Guide 1.147, Rev.17, allows credit for essentially 100% coverage of the weld provided greater than 90% of the required volume has been examined.

10 CFR 50.55a(b)(2)(xv)(A) requires the following examination coverage criteria when applying Supplement 2 to Appendix VIII: (1) Piping must be examined in two axial directions and when examination in the circumferential direction is required, the circumferential examination must be performed in two directions, provided access is available

.... (2) Where examination from both sides is not possible, full coverage credit may be claimed from a single side for ferritic welds. Where examination from both sides is not possible on austenitic welds ... , full coverage credit from a single side may be claimed only after completing a successful single-sided Appendix VIII demonstration using flaws on the opposite side of the weld .... 10 CFR 50.55a(b)(2)(xvi)(B) requires that examinations performed from one side of a ferritic or stainless steel pipe weld must be conducted with equipment, procedures, and personnel that have demonstrated proficiency with single-side examinations.

To demonstrate equivalency to two sided examinations, the demonstration must be performed in accordance with the requirements of Appendix VIII, as modified by 10 CFR 50.55a(b)(2)(xvi)(B) and 50.55a(b)(2)(xv)(A).

4. Impracticality of Compliance Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 3 of 27 Pursuant to 10 CFR 50.55a(g)(5)(iii), relief is requested from the essentially 100% volumetric examination coverage requirements for the subject austenitic welds due to the geometric configuration that limits the volumetric coverage that can be obtained.

When the examination area is limited to one side of an austenitic weld, examination coverage does not comply with 10 CFR 50.55a(b)(2)(xv)(A), proficiency demonstrations do not comply with 10 CFR 50.55a(b )(2)(xvi)(B), and full coverage credit may not be claimed. The subject welds were examined with a manual ultrasonic (UT) technique using pulse echo ultrasonic instruments and search units to achieve the maximum examination coverage practical.

Personnel, equipment and procedures were qualified in accordance with ASME Section XI, Appendix VIII, as implemented by the Performance Demonstration Initiative (POI). There are currently no POI qualified single-side examination procedures that demonstrate equivalency to two-sided examination procedures on austenitic piping welds. *current technology is not capable of reliably detecting or sizing flaws on the far side of an austenitic weld for configurations common to U.S. nuclear applications.

POI Performance Demonstration Qualification Summary (PDQS) certificates for austenitic piping list the limitation that single-side examination is performed on a best effort basis. The best effort qualification is provided in place of a complete side qualification to demonstrate that the examiners' qualification and the subsequent weld examination are based on application of the best available technology.

Refracted longitudinal (RL) wave was typically used to investigate the far side of the weld to the greatest extent possible if the thickness of the pipe was greater than 0.5 inches. For piping 0.5 inches in thickness or less, a 70 degree sheer wave examination angle is used to interrogate the far side of the weld. Any indications seen with the RL or the additional angle used would have been noted and investigated.

The required examination volume of these welds was interrogated ultrasonically to the maximum extent possible.

No alternative techniques or advanced technologies were considered feasible and/or capable of obtaining complete coverage of the examination volume.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 4 of 27 a. The 1-13 welds are the pipe to cold leg loop stop valve welds from the three reactor coolant pumps (RCPs). The pipe to valve configuration confines meaningful ultrasonic examination to one side only. Additionally, an identification plate restricts examination on the three pipe loops. This plate is depicted in Figures 4a2, page 2 of 2, and 4a3, page 2 of 3. Details are provided in Table 4a. The 1-13 welds fall within High Safety Significance (HSS) RI segments RC-010, RC-011, and RC-012 for Reactor Coolant System (RCS) Loops A, B and C, respectively, with a postulated failure mechanism of thermal fatigue. One sample weld (1-13) is required for each of the three segments.

Only one alternate weld exists on each of the individual segments, weld 1-12, which is the RCP to pipe weld. The UT scanning area would again be restricted to one side of weld 1-12 due to the pump to pipe configuration and would provide approximately 50% coverage similar to the 1-13 weld coverage.

Due to the excessively high dose rates in this area, it is not practical to attempt examination of welds 1-12, which would offer at best only 50% coverage.

The similar Surry Unit 1 RCP to pipe 1-12 welds were examined on these segments in accordance with the Unit 1 Fourth Interval Risk Informed Program with only 48% coverage obtained for each weld. There were no recordable indications (NRI) for any of the three 1-13 welds examined.

TABLE 4a -Reactor Coolant Pipe to Valve Welds Drawing I Line#/ ID Weld Limitation I Item I Pipe Pipe Thickness Coverage Results I Fig. System I Material Dia. (Nominal)

Achieved Comments Risk Informed Segment 49.5% (UT) 11548-WMKS-RC-10-1 I 21% (UT Best 27.5"-RC-309-2501 RI ASTM Effort) Single-1-13R1.11/

A-376, 27.5" 2.375" 45 degree sided, pipe 4a1 Reactor Coolant I shear wave to valve I Segment RC-012 Type 316 used,60 NRI "C" Loop degree RL also used 49% (UT) 11548-WMKS-RC-11-1 I 23% (UT Best 27.5"-RC-306-2501 RI ASTM Effort) Single-1-13R1.11/

A-376, 27.5" 2.375" 45 degree sided, pipe 4a2 Reactor Coolant I shear wave to valve I Segment RC-011 Type 316 used,60 NRI "B" Loop degree RL also used Drawing I Line#/ ID Weld Item/ Pipe Pipe Thickness System I Material Dia. (Nominal)

Risk Informed Segment 11548-WMKS-RC-12-1

/ 27.5"-RC-309-2501 RI ASTM A-1-13R1.11/

376, Type 27.5" 2.375" Reactor Coolant I Segment RC-010 316 "A" Loop Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 5 of 27 Limitation I Coverage Results I Fig. Achieved Comments 47% (UT) 24% (UT Best Effort) Single-45 degree sided, pipe 4a3 shear wave to valve, used,60 NRI degree RL also used b. The pipe welds discussed in this section were examined volumetrically by UT for thermal fatigue concerns (Item R1 .11). Weld 2-35 was also examined for IGSCC. Pipe weld description, examination and limitation descriptions are provided in Table 4b. Segment ECC-008 Weld 1-11 was fully UT examined with NRI in addition to weld 1-12BW. The portion of weld 1-12BW that was examined also revealed NRI. The five remaining*

welds assigned to this segment are Class 1, 2" socket welds and are covered by the VT-2 pressure test performed every refueling outage. Segment RC-051 Weld 2-35 was examined with limited coverage as shown in Table 4b. This weld was also examined as part of the Augmented Program (AUG) for sensitized stainless steel as required by the Surry Technical Specifications (TS 2.1.1) and received a surface examination with NRI. In addition, the following welds on segment RC-051 were examined during the fourth interval:

• Weld 2-29 on line no. 4"-RC-315-1502; 100% RI ISi (also examined for AUG TS 2.1.1)

• Weld 2-30 on line no. 4"-RC-315-1502; 100% RI ISi (also examined for AUG TS 2.1.1 and received a PT examination)

• Weld 2-33 on line no. 4"-RC-315-1502; 100% RI ISi

• Weld 2-34 on line no. 4"-RC-315-1502; 100% RI ISi (also examined for AUG TS 2.1. 1 and received a PT)

Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 6 of 27 This segment was reassessed as Low Safety Significance (LSS) in Period 2; consequently, ISi examination requirements were terminated.

Weld 2-35 continues to be addressed in the sensitized stainless steel Augmented Program (AUG TS 2.1.1 ), as do many of the welds assigned to this segment. None of the examinations revealed recordable indications.

TABLE 4b -Risk Informed Pipe Welds, Stainless Steel Drawing I Line#/ ID I Item/ Pipe Pipe System I Material Dia. Risk Informed Segment 11548-WMKS-0127 J1 I Stainless 2-Sl-274 / Steel 1-12BW I R1.11 / ASTM-2" Safety Injection I 376-Segment ECC-008 TP316 11548-WM KS-0125A 1 I 4-RC-315 / Stainless 2-35 / Steel R 1. 16/R 1 . 11 I ASTM-4" Reactor Coolant I 376-Segment RC-051 TP316 c. The pipe welds addressed in thermal fatigue (Item R 1.11 ). referenced figures. Weld Limitation I Thickness Coverage Results/ Fig. (Nominal)

Achieved Comments 75% (UT) Single sided, pipe 0.343" 5% (UT to reducer I 4b1 Best Effort NRI UT-single sided, pipe to nozzle I NRI I 50% (UT) pr.: NRI I 0.438" 32.4% (UT Also part of the 4b2 Best Effort) sensitized stainless steel Augmented Program this section were ultrasonically examined for Details are provided in Table 4c and in the The pipe lines discussed in this section are currently analyzed and inspected under the guidelines of the Materials Reliability Program (MRP-146) for the management of thermal fatigue on normally stagnant non-isolable RCS branch lines. The MRP-146 Program is part of the Surry Augmented Inspection Program under which select welds and pipe areas receive periodic examination as required by the MRP guidelines.

The MRP-146 Program did not exist when the initial Risk Informed Program was developed for SPS2; therefore, no credit was allocated for the MRP-146 Program.

Segment ECC-005 Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 7 of 27 Welds 1-08 and 1-09 were examined to meet the requirements of the RI Program. Weld 1-08 was examined volumetrically with no coverage limitations.

Weld 1-09 was limited in coverage as shown in Table 4c. These are the only two welds on the segment. No indications were discovered on these welds. Segment RC-042 Examinations were performed on two welds on this segment, welds 1-02 and 1-03A on line 6-RC-319, both of which were limited as shown in Table 4c. Weld 1-03A was replaced in 2006 at which time a UT and PT examination were performed.

No indications were found during any of these exams. Segment RC-041 In addition to the limited coverage examination completed on weld 1-03, weld 1-048 on segment RC-041, line 6-RC-317, was examined and met complete coverage requirements.

The only remaining weld on this segment is a branch connection weld which would only provide limited coverage at best. There were no indications recorded during any of the examinations.

Segment RC-043 Welds 1-02 and 1-038 were examined on line 6-RC-320 with limited coverage as shown in Table 4c. The only remaining weld on this segment is a branch connection, weld 1-018C, which would only provide limited coverage at best. There were no indications recorded during any of the examinations.

Segment Weld 1-08 on line 6-RC-321 was examined with limited coverage.

The following welds on segment RC-018, line 6-RC-321, were also UT examined and met code required coverage:

welds 1-05, 1-06 and 1-07. There were no recordable indications noted on any examination.

Segment ECC-007 Welds 1-09 and 1-11 were examined with limited coverage as shown in Table 4c and Figures 4c8 and 4c9: The only remaining weld on this segment, weld 1-10, was successfully examined to meet code coverage requirements.

There were no recordable indications on any of these examinations.

Segment RC-017 Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 8 of 27 Branch connection weld 1-01 BC was examined with limited coverage as shown in Table 4c and Figure 4c10. The following welds on segment RC-017; line 6-RC-318, were also examined and met code coverage requirements:

welds 1-06, 1-07 and 1-08. There were no recordable indications noted on any of these examinations.

TABLE 4c -Risk Informed Pipe Welds, Stainless Steel, MRP-146 Drawing I Line#/ ID I Weld Limitation I Item Pipe Pipe Thickness Coverage Results I Fig. System Material Dia. (Nominal)

Achieved Comments Risk Informed Segment 11548-WMKS-0122H1/6-UT-single sided, ASME valve to pipe I RC-316 / 1-09 Spec 50% (UT) NRI I R1 .11 / SA376 6" 0.562" 12% (UT Analyzed as part of 4c1 Reactor Coolant Best Effort) Segment ECC-005 TP 316 Augmented Program MRP-146 11548-WMKS-0127 J2 I 6-UT-single sided, RC-319 / 1-02 ASME 50% (UT) elbow to weldolet I Spec NRI/ R1.11 / SA376 6" 0.562" 2.75% (UT Analyzed as part of 4c2 Reactor Coolant TP 316 Best Effort) Augmented Segment RC-042 Program MRP-146 11548-WMKS-0127 J2 I UT-single sided, 6-RC-319 / 1-03A ASME 50% (UT) valve to elbow I Spec NRI I R1 .11 I SA376 6" 0.562" 13% (UT Analyzed as part of 4c3 Reactor Coolant TP 316 Best Effort) Augmented Segment RC-042 Program MRP-146 11548-WMKS-0127J1

/6-UT-single sided, RC-317 / 1-03 ASME 50% (UT) elbow to nozzle I R1.11 / Spec 6" 0.562" 5.5% (UT NRI/ 4c4 Reactor Coolant SA376 Best Effort) Analyzed as part of Segment RC-041 TP 316 Augmented Program MRP-146 11548-WMKS-0127J3

/ 6-UT-single sided, RC-320 / 1-02 ASME 50% (UT) pipe to weldolet I Spec NRI I R1 .11 I SA376 6" 0.562" 14% (UT Analyzed as part of 4c5 Reactor Coolant TP 316 Best Effort) Augmented Segment RC-043 Program MRP-146 '

Drawing I Line#/ ID I Item Pipe Pipe System Material Dia. Risk Informed Segment 11548-WMKS-0127J3 I 6-RC-320 I 1-03B I ASME R1 .11 I Spec 6" Reactor Coolant SA376 Segment TP 316 11548-WMKS.:0122J1 I 6-RC-321 I 1-08 I ASME Spec R1.11 I SA376 6" Reactor Coolant TP 316 Segment RC-018 11548-WMKS-0122J1 I 6-RC-321 I 1-09 I ASME Spec R1.20 I SA376 6" Reactor Coolant Segment ECC-007 TP 316 11548-WM KS-0122J 1 I 6-RC-321 I 1-11 / ASME Spec R1.20 I SA376 6" Reactor Coolant Segment ECC-007 TP 316 11548-WMKS-0122K1-1 I 6-RC-318I1-01BC I ASME Spec R1.20 I SA376 6" Reactor Coolant Segment TP 316 5. Burden Caused by Compliance Weld Thickness (Nominal) 0.562" 0.562" 0.562" 0.562" 0:562" Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 9 of 27 Limitation I Coverage Results I Fig. Achieved Comments UT-single sided, 50% (UT) pipe to valve I 9% (UT NRI I 4c6 Best Effort) Analyzed as part of Augmented Program MRP-146 UT-single sided, 50% (UT) elbow to valve I NRI/ 6% (UT Analyzed as part of 4c7 Best Effort) Augmented Program MRP-146 UT-single sided, 50% (UT) valve to elbow I NRI I 6%(UT Analyzed as part of 4c8 Best Effort) Augmented Program MRP-146 UT-single sided, 50% (UT) valve to pipe I NRI I 11% (UT Analyzed as part of 4c9 Best Effort) Augrnented Program MRP-146 UT-single sided, 50% (UT) weldolet to pipe I NRI I 23.7% (UT Analyzed as part of 4c10 Best Effort) Augmented Program MRP-146 Compliance with the Code requirements would require extensive modification or replacement of components with a design that would allow full examination from both sides of the weld. This option to rebuild components is considered impractical and would cause unnecessary radiation exposure.

Furthermore, plant equipment could be impacted in a detrimental manner.

6. Proposed Alternative and Basis for Use Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 1 O of 27 The subject welds received a volumetric examination to the maximum extent practical utilizing the best available techniques. With the incorporation of the POI for Supplement 2, demonstration for best effort coverage was made for single-sided examination from the accessible side of the weld. Additionally, these components are monitored for through wall leakage as part of the ASME XI System Pressure Test Program and receive visual (VT-2) examination as required by Section XI, Table IWB-2500-1, Category 8-P for Class 1 components and IWC-2500-1 at the end of every refueling outage. None of the pipe or weld material is constructed with Alloy 600/82/182 materials; therefore, there are no primary water stress corrosion cracking (PWSCC) concerns.

In addition, there are no known through-wall failures on the welds discussed in this section at SPS2. Based on the volumetric coverage that was obtained with acceptable results, the routinely performed visual (VT-2) examinations, and the fact that multiple welds were examined on each risk informed segment, or, in the case discussed in Section 4.a where welds were examined on all three similar loops, it is reasonable to conclude that service induced degradation would have been detected.

Therefore, these proposed alternatives provide an acceptable level of quality and safety by providing reasonable assurance of structural integrity of the subject welds. Accordingly, Dominion requests relief in accordance with 10 CFR 50.55a(g)(5)(iii).

7. Duration of Proposed Alternative This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for SPS2, which began May 10, 2004 and ended on May 9, 2015.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 11 of 27 Repo rt No: U T 44-0 S9 Su mm ary It 5 2.Rl.1 1.3 69 P'g:. 4 of 4 Prepa!'ed by: W. T ho m as Da te; O S/08/20 1 4 P. lil; F"( LMT-'Rf11 Fig43 1 ll'!Qe l of1 W e ld N um be r Thi c k n e ss 1-1 3 2.36" We l d Wi d t h We l d L en gth 2" :&4.5" r(

0 W1t1)i!SS e<I FLOW 1.1aso. ltl , ){l)4 ,r;" ffi;(lf H. U!t: lli ;,u , IN , .. REGI JI ROO 00\" J VQ U JME u s A.m 00 2 1(£0! Dfl<M UMITED us SICiE FCR TWO I NCHES oue: m waDED F\ID

.. too= 9 9% ',',

U l'l: 00. llHE!I H FF<R T e<! l§!ll': .t.;t ::/:.-... .. t!fl.X.&11' W; k IU 0.34 X 1 (W .. M%0$

Vclume Obnens k m s -H eight 0.7S7 lengdll 84.5 6 Width Ctwerag:e Summary ANGLE UpSt>>Ax UpSt-Cln:: On.S t-Ax DnSt-Orc 98% 0% t :lin J I *843 CCJde Coverage Tota l I 49.5% 9"8+100+-0+&4:;;282/4=70.S

• aest Effort Cove r age {Max 25%} Total I .21% Not.es: 1) Code O:ivcr<t ,gc ro furs to t h e maJcimurn percentage af t h e reqtli r ed e>ra mlnatl on votume tha t i s efftt t ively e x am i ned wi t h the qual i fied pr ce<;edu J e , i} Bes:t£ffoft CoYerage r efers. t<> H1erequ 1t ed e-Xl!.m l m1 t lo n volum e pa s t the weld cent erllhe that m:a m lnetf i t 1 the aJ1 be:-am d i rection w lt h an Appendix V III de m!>flst l"Oit e d pr oc ed ur e fo r-single sided coverage.

Supplemental Rep ort Other: -'N-"'IA..;.. _____ Leve l: NIA Comme:n t e; !" or axial $C'ln ob*truocted for l>otn 45* !!nd 60" RL due to CQde Plate @ TDC , Olm.cntloNi: 3:"xU" , Pl*te Is 1" l,!P*iream oftoe of Qf Photo; LOOP STOP VAL V E MOV 2593 !oP view* r. Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 12 of 27 l MT-R0 , 1 F i g 432 pagt>2al 2 Ro p o.rt __ VT_*1_2-0_9_9_ 4 of 4 Supplemental Report b\UnlMI)' No.: --5:2"-. *:.;.;R..;.1*..;.11 ,;,,;.'6;;.;;2.;;.,;;Z __ _,,,,._.,Exam&i!?1:

Mulrbl!!'Sd, Rrrm . J!!!! Examfrier.

Pau l . e*iel'. _!_ Othet: NJA . ... . t.evet. .!!fl._ Fl.OW ----NO READ I NGS TOTAL CODE REQUIR ED VOLUM E"' HMI cumc IN CHES AREA us SIDE AXIAL omECTION 00.5-5.265,. 94.2.35199.5 = : 947 X: 10CP" Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 13 of 27 Report Nr.>.: LMT-R01 fig 4ia3 page 1 of3 -----... 3 of 6 Date; Date: 11-i!?*.o'j . Date: / t/e Af;;t > BESTS:fl'()<<f EXAt11.W\TION AAF:A OS AX IA L 9S. s. 5.49 .. 94199:.5 ... 945 x 100 "'Q4.5'!(.

NO EXAMINATION Jl5 SQ. IN. X 8*L78 LENGTH= *U4 CUBIC IN.

Supp l emen t al Report S ke t ch or fi tio t<< NAME: PLATE PIPE ---------*-FLOW 1-13 \ \ \ \ \ \ \ I I I ' I NO READI N GS NO EXAMIN A TION 4,5" oue TO waoen NAAIE Pl.A T E; ON PlPc SIO E Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 14 of 27 LM T-R01 Fig4a3 1-'30!! 2 ol'3 Re port c-;o ,; __ ur_*-0$_._-1_1_.t_ VALVE l)ii * .,_ ?., 7,. * .,j_ D at e; Jl*a,.°'".l Da le;:

Se ri a l No. 16-1 46 Docket No. 50-281 Relief Request LMT-R01 Attach m ent 1; Page 15 of 2 7 Supplemental Report R apoort i'fo.: l.IT-ROt Frg4a3 page 3of 3

__ Pa g e: 5 of 6 $1!.im mary No.: .;;.S.;;..,2*;.;,;R;.;.;1

':..;.'l..;.;1.,_.52'-"2----=

---

E xa mi ne r, l.-g:;;_,_z Level: l -P OI R u"J iow : E:xami ne t: DIVi1le rJ o, E.

Lev-e l: I I' Si e Re v' w: O t her; NIA L ev : NIA AN ll R eYi!l w:

Commtml; Skelch or P h oto: COVERAG E

SUMMARY

Wel d !"l umbe r Wela Wel d l..el'lg lh W e ldWICftl'l M3 2.375" NOM SEE ATTACHED COVERAGE PLOT Examination Volume Dimensions

-Heigh t .7 83 .. l ength 84.78" Wi.<lth -* Coverage Summarv Required Scans (ea.ch has a weighing factor of 100 for gompleleroverage) 3" ANGLE UDSt-Ax UpSt-Circ On st.Ax OnSt-Circ

_, l 45 94.7% *-*. 94.7% 0% 60 '94.5.% -** .. Code Coverage Total I *Best Effort Coverage (Max 25%) Tota l I 24% Notes.: 1) C-Ode Coverage refera to the max imu m per cen lag.a o.f the required examination volume that Is effectively examined with the qua lied e.xami na lion proc e dure. 2) Effort Coverage refers to , lfle required examination vol u me past the weld centmi l ns that is examined i n lhe axial beam direction with an Appendix Vl 11 1 demonstraled omoedure for s i ng le sided_coveraae. M d iti.ooa l -S.upp i ame"'a1 D a te: n*n-c:o'f

'lo ,.,,. .. i.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 16 of 27 Report No: UT-1M.l5 Summary# S2.Rl.1L 1&6 .Pg,. 5 of 6 P*ce pared by: _ Carra oate: 1 1./16/ l L MH'l D1 Fi\g 4b 1 pa ge 1 o f1 WeldN mb r Th i dtl@SS 1-!2 B W D.lll Wft ld W i d th W eid l e ngth 0.4" ANG L E 45/60 70 US A't.itl. llkl¢ = !00% V<:J..JtOO *0.11(3 t;..___..::_,_*

He i ght 0.1 11 Ler.gth 1.$

1 00-% 100% 0% 1 00% I 75% Best Effort Cover a-se 25%} Tobi 1 5% ll Cede Coverage refers to t h e mo:xi m u m p;erc-en t.age of the teq u it'OO exami n ation 1;10!Umt; ft.at i! eff&fa*e ly ex.a m1n e d wf;tll the <iUGllfiot:.d proced ur e. B!!st £ffort Coverage refer:> w tile re q ufred exami" aticn vclume p,ast t h e; we l d centerf!t'ltt that t!)'.:lmfM i n the ax i a1 beam d rectkm wl 011 Appendix:

\In! dernonstr.ueo:

prooeduHt rc r strigr:e s i ded coYer air e.

Suppleme n ta l Repor t. Su m m" r y N o.: S2.RU6 l R1.11.057 Serial No. 1 6-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 17 of 27 R ep No.: L M T-RD'i F119 4b2 pilge 1 of 1 Uf.(}1 M15 -----P<:i ge: 2 of 2 E..X<l min e r; L.e s t o r, Robert M 1.evel: R&vi*Wi'lt;

_N_f A _____ _..,_....,.._ Exa m' e r: Poster, Harry E L e-\'el. It.POI Sit e Revie w:

.. O th e r: NfA La,*e l: !'#A A N lf Re i/f ew:

Co m m en t i;: Limitat i on du e t o pl po to nott l i o eo n f ig u ration_C ODE COV E RAGE*6 0 dtJgroe axia l Up$t.*100'1., a x r a l dn$f..* O"%ycw U p:li l-*100-Y.,cew u.p st..*1!00%, cw dnst.-0% afl d ccw dns t.*&%.

• . B:EST EF rOR T EXAM wno deg re e-32.4"1. ad d itlo mll co.verago on the fa r $I de. i:J5<<f t.trt. "le W . .f a<t: . ..........

--1 e c t.J -__ u /) !Y t.e It vn .. for. *. 'b trt:J JJ ! rM ;itn 'j -<f Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 18 of 27 ' .. . DOllHftlO...-

Weld Nt.imbe r We ld Thic kness 1-09 .5£2" Report No. Surnma,ry N-0. Pg , 4 o f. 4 Prepared By: Dat e: Weld L ength Weld Width U T-11--0 21 S2.R1.1Hl74 T RAV I S THOMAS 41.29.12011 22" 1.2:5"

• 1 t

• -* ' _! ' ' ' ... ._._,,, -'--'-"-'-'

-"-'-'-'-'

' J ' -* L.. J

• I ' ' . ' ' ' ' ... '.! () 2 vtl!.1:!

• '<IO f'H 1 a USN!l/\L $lllC 1(1(7i1; VO!.LME E7 AMN F,;0 = ll2!;Ql;'f'-£ll'Q'f.15 l!LB'I Hf<OI ... OOAX.O\l.SOC"'

t 7 SCU1' IN.

IY.\EX;IUOO A>>Al..SO!:*()i:>>S0."1 <IOH X Examination Volume D i me nsi ons -Height O.t87 lengfu 2.-0" Ccverooe Summarv Required Scans (e a ch has a ...-eighing facto r o f 100. fo r compfet:e.

coverage) Angle up-st.Ax UpSt.Ci r c l D nSt-Ax O n-St..cl re -**** 45 f 70 1 00% 0% 45160 1 00% (}% 70 BEST EFFORT e 12% Co d e Cove r age Total I 00.'1'1) --*

• Best Effort 25%) T o ta l 1 1 2% Notes; 1} Cod e Cov e rag e re fers t o the maximum required exam i nation volume lhat i s effective l y exami ne d wit h the qtJ.a l ified examination 2) Best fff'Ort etwersge r efers to lhe requ f red exam m ation vo l ume past tile 'Neid ce n teru n e that i s examined ln ttie ax'sal beam d i re c tion wi th an Append ix V III de monstrated procedure t o r sing le sjded coverage , rJJ u.tr-Ro1 Flg4¢1 page I of '1 Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 19 of 27 Weld Thickne.ss I 2 0.5S9" 0 WeldW1dth Weld Length 1 2

........ FL OW WELO OlET EL 0.1WHT X ll.8 5" WIDrn ,.fUS8 SQ.

E'OltXAM US AND 00 SIOE:S. );/;">,:';zo; 5:°<.l EXAUlt J EO lOO'#i. OF TfE h£01JIRED V O:..UM;.,, US S I D£ .....

"' Examlna:tiion vort1me Olmens l 0<n$ -Height tcngth 21.2 S" Width 1.7" Coverage Summary Required Scan$ {eac;h has a weigh i ng factor o f 100 for com p lete eowrage)* ANGILE 45,60 100% 100% 0% 60L Code cov,erage H>ta l I so% lOO+lOCH-0+11::o21,1}4='S:2:

.7S *Sm Effort Coverage (Max 25%) T ota l .. 1 2.7S% 1) Code CovC?tage re.l'l?'t$ to t he ma xlmum pe r ce nt ag e oftke req 1.Jlrerl e:xarn l natlc>ti vo l ume the t t?ff'e<:ti1Je f y e:Ma.mi n ed with th e q 1,2 a ti fi ed e xan lfla.tfon procerl u re. l) B est E ff o rt Co11erage refers to ttie re q u 1re d e:w:11minatlon

\IO l ume p a st t h e weld OOliterUM t h at ir; examined in the ax i a l beam di r ection with all Afr,pend i X \llJt demonst r ated p r tx:edure far singfo si d ed U.ITJR0*1 Ftg i 41::2 pag '1 1

?933 HSBGS Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 20 of 27 LMT-R01 Fig4G3 r;f 1 of 1 ti . . . "' * ... *** Dom1naon RQpOrt No: U T*l 4-058 . r/1:./1r Su mmary# S2.fll.11.950 Pg, 5 o f S ** rVP...,v P repa re d b y: W. .. Thom<11s _ . .--* ,,,.,. . -O S/0 1/201 4 W eld Nu mbe r 1-03A We l d Wi dth We l d lengt h lltid:n -S$ O.SSS" 1.9.6&" L 2. 2 Ft OW . .:.S:.: 0.195" HT .X .875" WIOTH = 0.1 7 SO. I N .. "'REQU IRED EXAM VQ.UME U S AND OS SIDES EXAMJNEO 100% 00 T HE OS SI DE -EXAMINED 0.09 SO. IN LIS SID E AX. Dl.RECTION BE:ST EFFOR T **.09/ .17

• 0.53X 100= 53%8EST EFFORT O I R. w NO EXJ\M I NAT I ON FOR 47% US SID E AX D I RECTION. f:!lal'll!ination Volum11: Olmer1$l<m5

-Hefe ht O.l9S" 19.68" Width 1.75" (overage Summary Req11ired Scal'\S: (ear;:h has a\!l!!i,Rhingfactor of 100 for rompl@t.e coverage)

ANGLE Up$.t-Ax UpSt-Clrc Dnst-Ax DnSt*C i n; 4S/60 0% 100% 100% 60L : mo+rno+s3+0=Z5 3/4=6 3% I 50% Notes: *Bert Effort Coverage (Max 25%) Total I lJ% 1) code ciover gc refers to *1he.

percentage Qf tlw requ i red ex.11mlna t l'Ofl volum& IJiat. ls eff>i!ltti\lely

'J1;ami:ned w i th tire qua l i fied examlnal!Otl procedure. 2} B!!st Effort Cove r.age refers to the ed exnmlnatJon pilst lhll' weld centet*IJne that i s examined i n the .a1<ia! beam dlrectloo v lit l'I an Append ix vm demorutrata-d procedure for single skied c.o**er;i:ge.

C-0mmenl;s

.. ANGLE 60RL Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 21 of 27 Sup*plemental R.eport Repo rt No.:

Fig 4o4 page I of 1 Page: 4 o f 5 COVERAGE

SUMMARY

WeJd Nurmber We l\l Weld Length Weld VV!dtll 1-03 .55 3" (.5 62" oom) 2 1" .m> OC>Veraae Summarv Reciurred

$Cans (eact1 has a weiah l rm factor of 100 for o:>mplet:e covemge) UpSt--Ax UpSt-Circ DnSt" Ax *011st-cl r¢ 10 0% 0% '22% Code Coverage Total I 50% *&nit .Effort Coverage (Max 25%) Totaf I 5.5% 1) Code Covera:gll refers lo the maximum .percentage of the required examination vo l ume that IS etreclillety exam1nec With the qualitl.ed examrnauo11 procedure. 2) Best Effort Coverage raf&"N!i lo tne r equired examination wlumc pa$.t the wetci* cenl:erfine that is examined i n the axia l beem d i rectkln with an Ap p endix VIII demonstrated procedure for sJna:ie sided coveotqe. Exam i nation Volume Dime.11$.lons

-Height .*f r 84" Length 21 Width '2" 1 00+ 1 00 +O +22 "'222 14 = 55.6%.

Repo rt o. S um mary N o. Pg. 5 o f. 5 Prepa rn d B y: Date: Ser i al No. 16-1 46 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 22 of 27 lJ T-11--007 S2.R1.11.21 0 TRA V I S TI-l O MA S 5 15 120 11 LMT-RD1 Fig 4t5 page 1 <>(1 Weld N u m ber Weld Tn i ckroeas t-02 .562" Weld L engt h Weld Wi d th 2 1 .6" .. I I.I l . .._ ........... .. 1 l i .. ._* ,,___,,__,_..__.___,_.

c ;i Tl>fOl'.JoQOSS. r.EASLIRfil l fi: N TS 0 2 SI £61.1' ,t;t Q' 5} N'R *-*

US AJ<lA1. Slbl!! 100% VO U.M 1i. E XPMNa:l "'U1 SCUo.RE ll'l:::t;ES BEST E: t'Om' OSAXIAL SI DC!:,.O.ot 00 J N "l'<<:>.l!X/IM ro AXlAL a CE *0.n w i th a n Append ix V III . \ \ \. ..._ ___ _...;d;.;.;em"'**"'"'o'"'"n.;;..s t ,;,.,;ra_.t en_* **_,o ,_ro1_ce<l __ u r_e_fo_r_s_i ng ... 1_,e_s_ide

____

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No tes:

Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1; Page 23 of 27 ' ' . . Report No. S1.1rnmary No , Pg. 5 of. 5 lJT-11-058 S2.R1.1 1.2 1 1 , Prepared By. Date: TRAVIS THOM AS 51'.>12011 Number Wel d TI1ickne<$S T--*-*t..., LLl.J 4i JlO\'!

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Angle IJoSt.Ctrc Dnst-Ax D n-S t*Clrc 45/60 1vu% 0% .45 1 60 100% 0% 00 BEST EFFORT "' 9% 70 BEST EFFORT"' 22% Code Coverage Total I ... Best Effort Coverage (Max 25%) T ota l I Noto11: 1) Code Coverage refers to the max imu m perce11tage or th e r equired exarriii i aU on vol ume t hat is effectively e xam t nlld witti the qua lifietl er.am fnatl oo proced u re'. 2.) a est Effort coverage refef:s to t he requ 1 r oo e,xa m mauon vo l um e pa s t the weld c e nter11n e that i s examined in t he axial beam dlrec!ion with an Appendix V III demonstrated D!'ocedure for sin<i;l e sided c ove raa e. 1.6" 5-0% 9"At .. L MT-RDI Fig4c6 µag e 1 *of *1 Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 24 of 27 S up p Jernental Re port lMI-R01 Fig4c7 Rep oi t No.: __ uT_-o_6.-_M_7_ Summary No.: EX<!ffii Jler: Cngo , Notrnart Level: IJ.POI Roviewer. E;o;amlnei:

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Supplemental Repat1 .Su m mary No.: _s __ 2 ,_R1_._11_.oa __ J:_ .. Exam i n0 t:: C3Je, Norman Exam in er; Ryan J OthGt: N IA Weld N umber J ..:. c Weld Thick ness ... 4 .. leng!h 1!..P D I Le11ei: llL Level; NIA Flow ' di' . J Bo;>: D l mens io ns. i= H_._J_T_ " Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 25 of 27 L MT-R01 Figi4cS MiJe l*o f1 Roporl No.: __ _ P119ll: 2 or 2 Code Cov e r age T ota l Besl Effort Cov e rage T otal S'(:;)/ o t OO% max) 6 2'c (50% max)

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• Kel g ht L engi h W idtti Covera ae Summari -* Requ ire d Scans ( eacfl h as a weiah i no factor of 100 for com e le te coverage) A ng le U p.Sl*Ax Ups t-Circ D nSt-Ax Dn-St-C i rc 45160 0% --100% .. . -*** 45 160 0% 1 00% -60 BES T EFFORT"' 1 1% 70 B EST EFFORT"' 22% C ode Tota l r ... Sest E.ffofl C o verage (Max 25%) Total I 'Notes: 1} C ode C o v e ra ge ra ters to the maxim u m percentage o f t he required ex<1m l natlon I vo ume t hat Is e!fectlv el)* e x a m i ned wit h the q ual i fie d exami na ti o n p r o ce d ur e. ! 2) B es t E ttort C o verag.e r e f e rs to th e re qu ired exa m ination vot u me pas t t he we l d i ce n terl i ne t hat i s exa mi ned in the a xial b eam d 1reotbn wit h a11 Appern:l lx VI II d emoostrate d oroce du r e tor s.inn tn* sided coveraae. 1 6" 11%

Serial No.16-146 Docket No. 50-281 Relief Request LMT-R01 Attachment 1 ; Page 27 of 27 Report N o: U T*1 4-068c Su mmary It S2.Rl.1L086 P g. 4 o f 4 l'ropared b11: W. T horn;;l's Da t e: OS/0 5/20 14 lMT-ROI F'1g'l>cl0 page 1 of1 We l d N umber Th i cl:nes s 1.925" Weld W i d t h W e ld L e n gth J l rr' l f.xatn l n atio:n Vo l um e

• Height 0.642" length 30.5" Width 2.6" Coverage Summary Requir ed Sca ns feach has a weigh i ng facto r of 100 for complete co ver;;1ge)

ANGLE U pSt-Ax Upst-C i rc: DnSt-Ax OnSt..C lrc 45,60 100% 100% 0%. 60 "94.7% 100+ 100+94.7 +0"2 94. 7 /*" 7 3. 7 Code Cove r ag e Total I so% Not.es: *BEst Effort Coverage (M ax 25%) Total I 23.7% 1) C ode Cove r age refers to the maximum pe r centage of the re<i u lred eJt.amlMUM

• 1oh.1me that i s effectivdy exam in ed with the q u afified exanJill<ltior>

proced u f"e. 2) Best Effort C overage r efe rs to the r eqv lr ed ex11m l Mt l o n past the weld tha t ii exa m i ned In the a xi al bea m d i rection w!th a n A1$P en d'lx \Ill! dem ons tr a ted] p rc ccd u 1c for s i<l:ed *1933 HSB GS Attachment 2 RELIEF REQUEST LMT-SS01 EXAMINATION CATEGORY C-F-1 PIPING.WELDS ON STAINLESS STEEL PIPING Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Dominion Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 1 of 55 4th 10-Year lnservice Inspection Interval May 10, 2004-May 9, 2015 Stainless Steel Pipe Welds: Non-Alloy 600 I 82 / 182 Relief Request LMT-SS01 Repetitive/Duplicate Relief Requests in Accordance with 10 CFR 50.55a(g)(5)(iii) lnservice Inspection Impracticality

1. ASME Code Components Affected ASME Code Class: Examination Category:

Item Numbers: Code Class 2 C-F-1, Pressure Retaining Welds in Austenitic Stainless Steel High Alloy Piping C5.11, Circumferential Welds: Piping Welds ?_3/8 in. (1 Omm), Nominal Wall Thickness for Piping >NPS 4 (ON 100) C5.21, Circumferential Welds: Piping Welds >1/5 in. (5mm), Nominal Wall Thickness for Piping ?.. NPS 2 (ON 50) and NPS 4 (ON 100) Component Identification:

Refer to Table 4a Material:

Refer to Table 4a 2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement ASME Section XI, Examination Category C-F-1, Items C5.11 and C5.21, require 100 percent (%) volumetric (UT-ultrasonic) and surface examination (PT-liquid penetrant) coverage for circumferential piping welds. The alternative requirements of ASME Section XI, Code Case N-460, approved for use in Regulatory Guide 1.147, Rev. 17, allows credit for essentially 100% coverage of the weld provided greater than 90% of the required volume or area has been examined.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 2 of 55 The Unit 2 Risk Informed Program does not apply to ASME Section XI Class 2 components discussed in this relief request. 10 CFR 50.55a(b)(2)(xv)(A) requires the following examination coverage criteria when applying Supplement 2 to Appendix VIII: (1) Piping must be examined in two axial directions and when examination in the circumferential direction is required, the circumferential examination must be -performed in two directions, provided access is available

.... (2) Where examination from both sides is not possible, full coverage credit may be claimed from a single side for ferritic welds. Where examination from both sides is not possible on austenitic welds ... , full coverage credit from a single side may be claimed only after completing a successful single-sided Appendix VI 11 demonstration using flaws on the opposite side of the weld .... 10 CFR 50.55a(b)(2)(xvi)(B) requires that examinations performed from one side of a ferritic or stainless steel pipe weld must be conducted with equipment, procedures, and personnel that have demonstrated proficiency with single-side examinations.

To demonstrate equivalency to two-sided examinations, the demonstration must be performed to the requirements of Appendix VIII as modified by this paragraph and §50.55a(b)(2)(xv)(A).

4. Impracticality of Compliance Pursuant to 10 CFR 50.55a(g)(5)(iii), relief is requested from the essentially 100% volumetric examination coverage requirement for austenitic piping welds with side access. The subject welds were examined with a manual ultrasonic technique using pulse echo ultrasonic instruments and search units to achieve the maximum examination coverage practical.

Examinations were performed using personnel, equipment and procedures qualified in accordance with ASME Section XI, Appendix VIII as implemented by the Performance Demonstration Initiative (POI). There are currently no POI qualified single-side examination procedures that demonstrate equivalency to two-sided examination procedures on austenitic piping welds. Current technology is not capable of reliably detecting or sizing flaws on the far side of an austenitic weld for configurations common to US nuclear applications.

POI Performance Demonstration Qualification Summary (PDQS) certificates for austenitic piping list the limitation that single-side examination is performed on a best Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 3 of 55 effort basis. The best effort qualification is provided in place of a complete side qualification to demonstrate that the examiners' qualification and the subsequent weld examination are based on application of the best available technology.

Refracted longitudinal (RL) wave was typically used to investigate the far side of the weld to the greatest extent possible if the thickness of the pipe was greater than 0.5 inches. For piping 0.5 inches in thickness or less a 70 degree sheer wave examination angle is used to interrogate the far side of the weld. Any indications seen with the RL or the additional angle used would have been noted and investigated.

When the examination volume is limited to one side of an austenitic weld, examination coverage does not comply with 10 CFR 50.55a(b)(2)(xv)(A), proficiency demonstrations do not comply with 10 CFR 50.55a(b)(2)(xvi)(B), and full coverage credit may not be claimed. The ASME code required volume of these welds was interrogated ultrasonically to the maximum extent possible.

No alternative methods or advanced technologies were considered capable of obtaining complete coverage of the examination volume. Since the configuration of the piping limits access to a single side, relief is requested on complying with the essentially 100% required examination coverage for the piping welds listed in Table 4a. Note that the examination coverage listed is that which was obtained during the examination with no credit taken for the far side of each weld in which the examination from that side could not be performed.

Supplemental scanning was performed to provide additional best effort (non-code) coverage as documented in the table and figures. Surface examinations were performed in addition to the volumetric examinations except where Code Case N-663, "Alternative Requirements for Classes 1 and 2 Surface Examinations," was determined to apply. Table 4a indicates if a surface exam (PT) was performed, the coverage achieved, and the examination results. Where indicated in Table 4a, welds are also inspected as part of the SPS Augmented Inspection Program and will continue to be governed by these noted inspection programs.

Drawing I Line# / ID Item System 11548-WMKS-Sl-1 I 12-Sl-201 I 0-03 I C5.11 Safety Injection 11548-WMKS-Sl-1 I 12-Sl-201 I 0-05 C5.11 Safety Injection 11548-WMKS-Sl-1 I 12-Sl-202 I 0-13 C5.11 Safety Injection 11548-WMKS-Sl-1I12-Sl-202 I 0-16 C5.11 Safety Injection 11548-WMKS-Sl-10 I 3-Sl-270 I 0-08 C5.21 Safety Injection TABLE 4a Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 4 of 55 (*No Best Effort Examination Recorded)

Pipe Pipe Weld Coverage Limitation I Material Dia. Thickness Achieved Results I Fig. (Nominal)

Comments UT -one sided and interference with grout, elbow to valve I ASME Spec. 19% (UT)* NRI I SA 312 TP 12" 0.375" PT -no coverage 4a1 304 80% (PT) in area of 23" to 31"dueto proximity to concrete wall I NRI UT -one sided and interference with grout, valve 38% (UT) to tee I ASME Spec. NRI I SA 312 TP 12" 0.375" 3.5% (UT PT -no coverage 4a2 304 Best Effort) in area of 24" to 77.5% (PT) 33" due to proximity to concrete wall I NRI 46% (UT) UT -one sided, ASME Spec. 12" 0.375" 4.33% (UT elbow to valve I 4a3 SA 312 TP Best Effort) NRI/ 304 100% (PT) PT INRI ASME Spec. 39.5% (UT) UT -one sided, SA312 12" 0.375" 0%(UT tee to valve I 4a4 TP304 Best Effort) NRI I 100% (PT) PT INRI UT -one sided, ASME Spec. 85.5% (UT) elbow to tee I NRI I CC N-663 SA312 3" 0.438" 14.5% (UT applied, no 4a5 TP304 Best Effort) surface exam required.

Weld Drawing I Line# / ID Pipe Pipe Thickness Item Material Dia. (Nominal)

System 11548-WMKS-Sl-12A I ASME Spec. 0.438" 3-Sl-272 I 2-08B I SA312 3" C5.21 / TP304 Safety Injection 11548-WMKS-Sl-12A I ASME Spec. 3-Sl-272 I 2-09A I SA312 3" 0.438" C5.21 / TP304 Safety Injection 11548-WMKS-Sl-15

/ ASME Spec. 3-Sl-346 I 0-02 I SA312 3" 0.438" C5.21 I TP304 Safety Injection 11548-WMKS-Sl-15

/ ASME Spec. 3-Sl-346 I 0-03 I SA312 3" 0.438" C5.21 I TP304 Safety Injection 11548-WMKS-Sl-16"/

ASMESpec.

3-Sl-347 / 2-01 I SA312 3" 0.438" C5.21 /

• TP304 Safety Injection 11548-WMKS-Sl-18

/ ASME Spec. 3-Sl-347 I 0-19 / SA312 3" 0.438" C5.21 I TP304 Safety Injection 11548-WMKS-Sl-2 I ASME Spec. 3-Sl-270/1-12

/ SA312 3" 0.438" C5.21 / TP304 Safety Injection 11548-WMKS-Sl-37 I ASME Spec. 16-Sl-205 I 0-021 SA312 16" 0.375" C5.11 I TP304 Safety Injection Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 5 of 55 Limitation I Coverage Results I Fig. Achieved Comments 50% (UT) UT -one sided, 22.5% (UT pipe to valve I 4a6 Best Effort) NRI I 100% (PT) PT INRI 50% (UT) UT -one sided, 20.5% (UT valve to pipe I. 4a7 Best Effort) NRI I 100% (PT) PT INRI 50% (UT) UT-one sided, 19.5% (UT reducer to valve I 4a8 Best Effort) NRI I 100% (PT) PT INRI 50% (UT) UT -one sided, 22% (UT valve to pipe I 4a9 Best Effort) NRI I 100% (PT) PT INRI UT -one sided, 50% (UT) reducer to valve I NRI I CC N-663 4a10 22% (UT applied, no B.est Effort) surface exam required UT -one sided, 50% (UT) pipe to valve I NRI I CC N-663 4a11 16.7% (UT applied, no Best Effort) surface exam required UT-one sided, 43% (UT) pipe to valve I NRI I CC N-663 4a12 10.6% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) valve to elbow I 14% (UT NRI I 4a13 Best Effort) PT INRI 100% (PT)

Weld Drawing I Line#/ ID Pipe Pipe Thickness Item Material Dia. (Nominal)

System 11548-WMKS-Sl-4 I ASME Spec. 12-Sl-205 I 0-15 I SA312 12" 0.375" C5.11 / TP304 Safety Injection 11548-WMKS-0117A1-1 ASME Spec. 0.438" / 14-RH-102

/ 2-15 SA358 14" C5.11 TP304 Residual Heat Removal 11548-WMKS-0117A1-1 ASME Spec. 14-RH-118

/ 2-25 / SA358 14" 0.438" C5.11 / TP304 Residual Heat Removal 11548-WMKS-0117B1

/ ASME Spec. 12-RH-112

/ 2-06A I 12" 0.375" C5.11 / TP304 Residual Heat Removal 11548-WMKS-0122H1 I ASME Spec. 6-Sl-249 / 2-01 I SA376 6" 0.562" C5.11 / TP316

• Safety Injection 11548-WM KS-0122J 1 I ASME Spec. 6-Sl-250 / 2-01 I SA376 6" 0.562" C5.11 I TP316 Safety Injection 11548-WMKS-0122K1-2 ASME Spec. / 6-Sl-249 / 3-13 / SA376 6" 0.562" C5.11 I TP316 Safety Injection Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 6 of 55 Limitation I Coverage Results I Fig. Achieved Comments UT -one sided, 43% (UT) valve to reducer I NRI I CC N-663 4a14 4.66% (UT applied, no Best Effort) surface exam required 50% (UT) UT -one sided, 12.5% (UT pipe to pump I 4a15 Best Effort) NRI/ 100% (PT) PT INRI . 50% (UT) UT -one sided, 25% (UT elbow to valve I 4a16 Best Effort) NRI/ 100% (PT) PT INRI UT -one sided, 50% (UT) pipe to flange I NRI I CC N-663 4a17 20% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) pipe to valve I NRI I CC N-663 4a18 16% (UT applied, no Best Effort) surface exam required UT-one sided, 50% (UT) pipe to valve I NRI I CC N-663 4a19 14% (UT applied, no Best Effort) surface exam required UT -one sided, pipe to valve I 50% (UT) NRI/ CC N-663 4a20 25% (UT applied, no Best Effort) surface exam required Weld Drawing I Line#/ ID Pipe Pipe Thickness Item Material Dia. (Nominal)

System 11548-WMKS-0122K 1-2 ASME Spec. 6-Sl-249 I 5-35 I SA376 6" 0.562" C5.11 / TP316 Safety Injection 11548-WMKS-0123L 1 I ASME Spec. 12-CS-102

/ 0-09 /. SA 312 12" 0.375" C5.11 / TP304 Containment Spray 11548-WMKS-0123M1 I ASME Spec. 12-CS-101

/ 0-06 I SA312 12" 0.375" C5.11 I TP304 Containment Spray 11548-WMKS-0123N1Z ASME Spec. 12-RS-107

/ 0-01 / SA312 12" 0.375" C5.11 / TP304 Recirculation Spray 11548-WMKS-0123N1 Z ASME Spec. 12-RS-107 I 0-02 I SA312 12" 0.375" C5.11 / TP304 Recirculation Spray 11548-WMKS-0123N1Z ASME Spec. 12-RS-108

/ 0-04 / SA312 12" 0.375" C5.11 / TP304 Recirculation Spray Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 7 of 55 Limitation I Coverage Results I Fig. Achieved Comments UT -one sided, 50% (UT) valve to pipe I NRI/ CC N-663 4a21 22% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) elbow to flange I NRI I CC N-663 4a22 10% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) pipe to valve I NRI I CC N-663 4a23 6%(UT applied, no Best Effort) surface exam required UT -one sided, 26% (UT) pipe to valve I NRI I CC N-663 4a24 0%(UT applied, no Best Effort) surface exam required UT-one sided, pipe to valve I geometric Indication 50% (UT) dispositioned to original 4825 25% (UT construction, not Best Effort) service induced I CC N-663 applied, no surface exam required UT -one sided, 45% (UT) pipe to flange I NRI I CC N-663 4a26 3%(UT applied, no Best Effort) surface exam required Weld Drawing I Line#/ ID Pipe Pipe Thickness Item Material Dia. (Nominal)

System 11548-WMKS-0123N1Z ASME Spec. 12-RS-108 I 0-05 I SA312 12" 0.375" C5.11 I TP304 Recirculation Spray 11548-WMKS-0127C2 I ASME Spec. 1 O-Sl-352 / 1-08. / SA376 10" 1.00" C5.11 I TP316 Safety Injection 11548-WMKS-0127C2 I ASME Spec. 10-Sl-348

/ 2-12 / SA376 10" 1.00" C5.11 I TP316 Safety Injection 11548-WMKS-0127J1 I ASME Spec. 6-Sl-345 / 2-01 I SA376 6" 0.562" C5.11 I TP316 Safety Injection 11548-WM KS-0127 J2 I ASME Spec. 6-Sl-344 I 3-01 I SA376 6" 0.562" C5.11 / TP316 Safety Injection 11548-WMKS-0127J5

/ ASME Spec. 6-Sl-345 / 1-05 I SA376 6" 0.562" C5.22 / TP316 Safety Injection Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 8 of 55 Limitation I Coverage Results I Fig. Achieved Comments UT -one sided, valve to elbow I geometric Indication 50% (UT) dispositioned to original 4a27 21.5% (UT construction, not Best Effort) service induced I CC N-663 applied, no surface exam required UT -one sided, 50% (UT) valve to pipe I NRI I CC N-663 4a28 31.3% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) valve to reducer I NRI I CC N-663 4a29 24.7% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) pipe to valve. I NRI I CC N-663 4a30 4.5% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) pipe to valve I NRI I CC N-663 4a31 1%(UT applied, no Best Effort) surface exam required UT -one sided, 71% (UT) pipe to elbow I NRI I CC N-663 4a32 4.25% (UT applied, no Best Effort) surface exam required Weld Drawing I Line#/ ID Pipe Pipe Thickness Item Material Dia. (Nominal)

System 11548-WMKS-CH-11 /

ASME Spec.

I 1-03 I SA 312 3" 0.438" C5.21 / TP304 Charging 11548-WMKS-CH-11 I ASME Spec. 3-CH-303/1-10 I SA312 3" 0.438" C5.21 / TP304 Charging 11548-WMKS-CH-11

/ ASME Spec. 3-CH-303 / 1-12 / SA312 3" 0.438" C5.21 / TP304 Charging Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 9 of 55 Limitation I Coverage Results I Fig. Achieved Comments UT -one sided, flange to pipe I NRI/ PT INRI Also examined as part of the 50% (UT) SPS sensitized 14% (UT stainless steel 4a33 Best Effort) Augmented 100% (PT) Program and will continue to undergo inspection under this program in the future interval.

UT -one sided, 50% (UT) pipe to tee I NRI I CC N-663 4a34 10% (UT applied, no Best Effort) surface exam UT -one sided, valve to elbow I NRI I PT INRI I Also examined as part of the 50% (UT) SPS sensitized 23% (UT stainless steel 4a35 Best Effort) Augmented 100% (PT) Program and will continue to undergo inspection this program m the future interval.

Drawing I Line# / ID Weld Pipe Pipe Thickness Item Material Dia. (Nominal)

System 11548-WMKS-CH-11

/ ASME Spec. 3-CH-302 / 2-03 / C5.21 SA 312 3" 0.438" Charging TP304 11548-WMKS-CH-11

/ ASME Spec. 3-CH-302 / 2-05A I SA312 3" 0.438" C5.21 / TP304 Charging 11548-WMKS-CH-11 I ASME Spec. 3-CH-381 / 3-03 / SA312 3" 0.438" C5.21 / TP304 Charging 11548-WMKS-CH-11 I ASME Spec. 3-CH-381 / 3-04A I SA312 3" 0.438" . C5.21 / TP304 Charging 11548-WMKS-CH-11 I ASME Spec. 3-CH-381 / 3-05A I SA312 3" 0.438" C5.21 / TP304 Charging 11548-WMKS-CH-18

/ ASME Spec. 3-CH-371 I 0-08 I SA 312 3" 0.438" C5.21 / TP304 Charging Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 10 of 55 Limitation I Coverage Results I Fig. Achieved Comments UT -one sided, 40% (UT) flange to pipe I NRI CC N-663 4a36 14.3% (UT applied, no Best Effort) surface exam required UT-one sided, 40% (UT) valve to pipe I NRI CC N-663 4a37 15.5% (UT applied, no Best Effort) surface exam required UT -one sided, 50% (UT) flange to pipe I NRI I CG N-663 4a38 25% (UT applied, no Best Effort) surface exam required UT -one sided, 43.3% (UT) valve to pipe I NRI I CC N-663 4a39 10% (UT applied, no Best Effort) surface exam required UT-one sided,

• 43.3% (UT) valve to pipe I NRI I CC N-663 4a40 15.6% (UT applied, no Best Effort) surface exam required UT-due to support interference I NRI 76% (UT) I CC N-663 4a41 4.95% (UT applied, no Best Effort) surface exam required Drawing I Line#/ ID Pipe Pipe Weld Item Thickness System Material Dia. (Nominal) 11548-WMKS-CH-24

/ ASME Spec. 3-CH-413 / 0-16 / C5.21 I SA312 3" 0.438" Charging TP304 5. Burden Caused by Compliance Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 11 of 55 Coverage Limitation I Results I Fig. Achieved Comments UT-one sided, 50% (UT) pipe to tee. INRI I CC N-663 25% (UT applied, no 4a42 Best Effort) surface exam required.

Compliance with the Code requirements would require extensive modification or replacement of components with a design that would allow full examination from both sides of the weld. This option to rebuild components is considered impractical and would cause unnecessary radiation exposure. . Furthermore, plant equipment could be impacted in a detrimental manner. 6. Proposed Alternative and Basis for Use The subject welds received a volumetric examination to the maximum extent practical using the best available techniques.

With the incorporation of the POI for Supplement 2, demonstration for best effort coverage was made for single-sided examination from the accessible side of the weld. Additionally, these components are monitored for through wall leakage as part of the ASME Section XI System Pressure Test Program and receive visual (VT-2) examination as required by Section XI, IWC-2500-1, Category C-H, for Class 2 components.

Surface examinations were also performed where shown in Table 4a. None of the pipe or weld material is constructed with Alloy 600/82/182 materials; therefore, there are no primary water stress corrosion cracking (PWSCC) concerns.

There are no known through-wall failures on the welds discussed in this section at SPS2. Any indications were recorded and dispositioned as geometric or construction related. Based on the obtained volumetric coverage with acceptable results, the routinely performed visual (VT-2) examinations, and the fact that Best Effort coverage and/or surface examinations were also performed; it is reasonable to conclude that service induced degradation would have been detected.

Therefore, these proposed alternatives provide an acceptable level of quality and safety by providing reasonable assurance of structural integrity of the subject welds. Accordingly, Dominion requests relief in accordance with 10 CFR, 50.55a(g)(5)(iii).

7. Duration of Proposed Alternative Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 12 of 55 This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for SPS2, which began May 10, 2004 and ended on May 9, 2015.

.Supplemental Report Siimmary No.:

Examloor:

Jeffrey D level: _!_

Ryah J level: UL Site l'OC!Wow.,"--

... """I" Leval! NIA ANU Re>.i'cw; 70 degree wave code covero:.ge on side, Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 13 of 55 l.MT-SS01 F<g4a1 Report Mo.: __ U_T*-'-ll-6.*_00_ . .i_ Ax1,ally 43%,

483 and c!oekwise 48'% fur ii_ total Qf' 1'9%. 'The total l11c!ude;s Jfmlied aecen dllo to grout.on pipe from 2:3" to $1" *.

.Supplemental Report Summary No.: S2.C5.1:1.644 Exami\n(Jr; Odegarct, Je!frt;I p Level: Ill Examiner:

Tolosky. Rynn J L£1vcl: UL Olhi:>r.

Level: Commoom: 10 degree shear wave coda covemgtf on upstteam st<fu. Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 14 of 55 Report No.: lMT-SS!H Frg4a2 page 1of1 -----l:'.N2ta:

---

Date: yjt 5/o'-oatu: N z Axialty 9-9%, CJockwfse 99% and counter eloekwfl:e 9!'1% fQr a total 38%. The total also Includes.

llmfled access due 10 grout oni pipa from :24" to WELD 0-05 $kq.tch or ?hQta; Supplemental Report Sum flHl!tY No.: $2.Co.11.851

..................

Examiner.;

Jeffrey 0 I.ova!: Ill ,< Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 15 of 55 Rspttr! No.:. LMT-SS01 Flg4a3 page1of 1 ___ .,,.._._ Date; ----Exam[lll?.f:

TolO$kld1Y.iJrt J lavi::I: lit.* Sile Date: . Dat<1: I /£¢i? Oil:!et:

Level: NIA ANllRtMewt . -* ... -*** Comments:

ID shoor vf.t'Ve code-cov411rage for upmream &loo. Axla,ly 92'%; .clociovi9eJl2%

and ci:mtttor oloc.kwise 92% for a Qf 4$%, WELD 0-13 Sketch or Phot0-: . **;..:

...*. * . . ""' r:Jl.;'11-

,,_.,.. _. ,_, -----""""""----

*,**** / ... -* . i;

;::' W:i#'N" Supplemental Report Summary No,;

Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 16 of 55 LMT-SS01 Flg4a4 8m. tt i ! n er: 0-cfogard, D Leve!: Ill Date: Exatnin!l1; T<rl01iky, Ryan J UNl14! .J!.!::._

Site A1twiew:iiiYd5ffwiil111/_Jt.Qharo:

Hh1(l!J..'.._

0111or:

Lovt-1:

/1k?r.,

Comments:

70 degree eodo <<Wer;ige for upstream skle. AxiaUy 79%, clockwiS.ti 7S% and ct>un\or i;:!Qdlv1ii;e TS% for totnl .ot 39'.!$%. WELD0-16 Sketch or o n .q 2 1ciS .**= :*

Supplemental Report summary N-0.; s2.cs.21, 164 ........... ...........

Examiner:

Cage, Norman Level: J!.:f£!. ExamrnGt:

Otl!Qard 1 Joftrey D . level; Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 17 of 55 R£port No.: LMT-SS01 fig4a&

---

Oala: _.,.,.._ __ Data: 01hcr: "°"'W.;,;,..

Leval! NIA AMI Revi!iw: .....,,, .........

Commen1a:

For Caf. Sheets 28,74&126

• Weld Numoor (1 ._& ti_

• Weld Thick.ngss

• • I/.!'" " Weld Length* '""' tt Row Code Coverage Total . . Best Effort Covemga

• _:_ 4.

Supplemental Rep" n1 Se r ial No. 16-1 46 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 18 of 55 Report No.: LMT-SS01 f i g4a8 page 1of1

---

Psge: 4 of 4 S u rnary No.; _s_2._c_s._2_1._22

_2 __ E:Jcam i ner; Zo ll ner , Brian o. 1iz: Lev.i i: I *POI Exam i ne r: _N._I A _________ l eve l: N I A O t her: NIA l evel: NIA Comments: COVERAGE

SUMMARY

Sketch or Pn oto: Weid Number Weld Thickne5s We l d letl{ll h We ld Width ft'!' HJ8B .438" 1 1.0" Cl <N , TOTA. A'D!ltR!!D E1WA VQ.ll.l!l:

O.Oi *SCI IN. 1 00+1 013' + 0 + 90 "" 290 I 4 "'72.5% Exam i nation Vo l ume Dimensions

-He:ight .16" L ength 1 1" C ov erage Summary Wi d th Required Scans (each has a weigh i ng factor of 100 for complete ANGLE 45 60 70 *00% 1.2" Di!te: 11-z,;)_'j _ Date: .ltii:[!L;. r. * * .. Code Coverage io1al I 50% .. Nk>t.es: " Best Effort Coverage 25%) fot.8 1 **

• 1 22.5% 1} Code Coverage refers to the maximum percentage of the required examina t io n llQlume !ha t is effect i vely examined w ith l he qualftied axaminatioo procedure;. 2) Bes t Effort Coverage refers to lile required examina tion volume past the wekl centetf i ne lha t i s e.xamlned n the a:xla l beam dlreetfon witli an Appendix vm demon strated procedure for sln g le sided ccwerage , TH ICK.Ness A N D COJ<J-m\IR TAK 5 N FRW PREVIOUS QA TA. o&,tld i!lo.n s l. Supp l e m e M:ll R cpoiU W'i11 Supp emental Report Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 19 of 55 Report No.: LMT.SS01 fig *a7 page 1 o(1 UT.OS-.103

---

Pa ge: 4 of .4. ymmary No.: S:Z.c.5.21 .. 223 Zotrner , Brian D e Level: lf*POI R:o" ev . NIA Level: .IA Site Re ----------

0 l her: !NIA L evel* AN ll Re V/>L\IE Weld Number WeldThit:1<nes Weld Length Weld Width .525" (.43S"NOM) 11.0" . . . . .... .75 .. ///,,.;,-;,;_ .0) SO , IN l)S AlCJ/4 .. J)IJl !E."'l'" fJft'Ciff' .. Q:ISQ.j 1 00 + 1 00 + 0 +8.2 "'2 82 / 4 = 70-5% E xam lna tloo Vol1.1me O'mensloos

• He l gt\t 17"' 1 .. Cover.aae Summarv Required Scans {each Ms a wmgn1,,g factor of 100 for coriip'iete

..:U* __ ,., . ANG.Lt .. AX c Dnst ,..Ax Dnst-Ci rc .. 45 , 60 7 0 Notes: 1) 2} 0% 100% 1 00% I . Code Coverage Tota l t

• 6est Effort Coverage (Max: 2:5%) T ofal . I Code Cove ra ge refers to lhe maximum percent'age of the required exam nation volume lha t is effeotively examined with th!i.!'

examination procedure.

Best Eff ort Coverage rerers to I ha requi red examinalion votume past 3ie weld is examined in the axial beam direction with an Appendix VIII demons trate d rProcedure

!'o;r smme sided c o11erage. THICKNE:SS A NO CONTOUR FRW 50% 20 .. 5% I '!

Serial No. 16-1 46 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 20 of 55 Supplemental Report LMT.SS0 1 Fig 43'S page 1of 1 Rep ort No.: ._..__VT __ _ S u mm;iry No.: -"S""7""'.c"'"s

....

____ Examine r: Zollner, S na n .0. fi:SVit)W.{;1 1". Elt<lmine r. Thomas , Travis w. 'f.). L evel: U*POI L evel; 1 1-POJ Level: NIA Sile Other: NIA A t i Review: Commen ts: Sil.etch or P h oto; COvER1CGE SOMMARV We l d N u mber Thici<ness WeldLengtti WektWid!h Fl.DIV ' --****-*** /. 11.0" .675 -----..__

CL / WW'-.. / . -/ . --.5/J' erM!!NED .00<9:1 Ill US:AXt:Hll!ametf

., .)'/./))';.

ElCoWftfO

.(fl C'Q. IN O!IAX'. OliUlelDI l'BSTEff'<MT f,'5.-"""'" ,,ll2SQ. flt 100 + 1 00 + 78 + 0 =: 278 I 4 = 69 , 5% E:x:a:minal loll Vo l ume Dimensions

• Height .158"' Length Width 45/60 100% _100% -0% 70 78% Pege: 4 of 4 COde Coveraae T otal 1 50% 1) Code CO\lerage refers to me maximum percentage of tile requ i recl examination volume that ls effee!ivety examined with ltle qualified examination proce.<fure

.. 2) Best Effort Coverage refetS to ltle required examination volume past !he we l d centerline tMt is examined in the axial beam oirectioo wrtt1 an Appendix VIII demoosll'ated orocedu r e for slnate sided w1e.rooe.

11-j l CKMES-SANO CONTOUR T AKEN FR OM PREVIOUS DA T A.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 21 of 55 Supplemental Report , .... ' Repor1 No.; -SS01 F i g a 9 page 1 ------P<1ge: 4 of 4 E'.xm n ioo t: Zolln;r , B ri ano. . l!WO I: J I.POI Thomas; Travis w. 1. ,-. l avet: It.PO I Other. NJA l Q>.i'El l: NfA Sketc h o r P h:olo: COVERAGE S U MMARY Weld Nu m ber Wekl Th i cil.nesi>

WeJd Lerigtil Weld Wltll FLO W

.475" om Cl. / : _,. ... '15 __ ,,..,,...,.,..

• . PIPE ----r--' VALVE --.-13' . .if/S m EXl\MNaJ.WSQ.

lN.00 \. ". EXAMN:O.<BSQ IN. USaESTa:roRT

""'""<<J NOEXAMNA"l"ICJ.i,01

00. IN , US Sl:EAX.DlftCTION 0.18SQ O>t 0 '.ALOOCE RKll.JIU)EXl\M

\Cll.J.J,E mo+ 1 00 + oo + o:; 2ee t '1* *72% Exam i nation Vo l u m e ffm e ns f oos -.1-43" Length 11" Govetaae Su mmarv ANGLE UpSt-Ax UpS!..Circ .DnSH\>c DnSt-CJrc 0% 1 00% 100% 70 D<l le; _IN l* "f .. 1, 17 5""

• Best Coverage {Max 25%) TQtaf t 22% Notes: 1) Coda C o v e r age refers 1*0 Ule maxim um of the require d exam i nation vo lu m e that is effectlvely exam in ed Witl'l the qu al 1f}ed Qxam rmtl.Qn: proce(lure. 2) 6est Effort Covernge re fe rs to the examination volume pas t the weid eenterl ioe I.h at ls ex amined j o the beam <faection with an Appe ndix Vm demon s1ra t ed proced l!re* for single sided i H I CK N 5S AAD CO N TOUR TAKF.111 FRC>>;l PR E VIOUS: DA T A.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 22 of 55 Report No: UT-14-066 Su mmary# S2.C5.2 1.2 5 S LMT-SSO Fig;4a10 P*11 Pg. 6 of 6 .. P r epared by: W. Thom;is Dat 6: 05/Q8[2 0 14 µf::$(Mt We l d N u mbe r Th i c k n ess 2-0 1 0.458" We i.cl Wi dt h L e ngt ' 0.6" 2 1 J FLOW V N.,: V E 0.153" HT X 0.55" W IOTH;; 0.0<!4 SQ. l!N;; R QUlRED VOLUME US AND OS SIDES ** EXAl.<<lffED0.07 4 SQ. IN.OS SIDE AX REC l!ot l B ES T E fi'CR.T AX D I R .. OS S I[)£

.N O EX AM O S S I OE N<. O IR ECT I O N FOR Exa mination Volu m l? Dimen s i ons -Height Q.153" l.l" ANGLE 45,60 70 2.25 NOteS: Coverage Summary Requ ir ed S c an s (eaeh has a weigh i ng factor of 100 fo r CQtnplett:)

c:o-v.e r age) . UpSt-Ax UpSt;-C irc On$t*Ax D n St-C ir t 1 00% 100% 0% *ss% Code Coverage To l a I I 50% *Se st E ffort Covetage. (Max 25%) Tota l I 223 11 Code (:QVe{'age refen: t o the m:a)CJmum percentag1!

of tne r e qui r ed *l!X.am i r ta lion volum t> that is effec;Uvely eMirl'lioed wJth the.qu alifit!d f!1<11inll'llitlon pro c edu re. 2) E.tfort t.o the requlred e:ic:am l nation v o t um e past th i e weld <:imter 11!1e th.at e;<a m toel:I In ithe. ilx!al bea l'n dl r!!<:tlon wl.th Vl11 demonstrated prCl<<\du r e for

$'ided cove r age. I 7933 HSSGS Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 23 of 55 Report No: UT-12-109 Summa: ry # S2..C5 , 21.297 Pg. 4 of 4 Prepared by: W. Thomas f>.ate: 11/12:/2012 LMT-SS01 p-aQO! 1of 1 ftf $ "fn/ P-o 1.,,.,., Weld Nu m ber T h ick nes$ (}.1 9 0.404" We l d W i d th we ldtength 0-4"

---

11* .. /ltffl.t.. 1 0 FLOW rlGIE: l MDC 'w.Jl TAl':IZJl FROlo.I f P.IN IOOO Oi\TA At CA'f utlil'l!l 74ll o ... T£C l'2>1:l:!. TOTAL REQUJRED Ex:Ai.I VCX.IJME = l);Ot; SO. IN .. tlS OS $ICES EXJ<ll lNEO Cf1 TiiE REOOIREO \i'a..U&!lf:

IJS Slot EXA l.rntED ll.Cl-4 SO. II{ 06 S IDE AX. Clll.EC'l1 QH !!E ST eFFORT .04 I .OS.

• 66<.7% NOEXAMFCR0.02SO.

N OOSlllcAXti1ru:

cr 100 .()2 I .06 331!% 100+100+65.7-t0.;266.7/4 6S.7% ham.lnatfon Volume O!mMsfons

-Height o.ns* Length 11" Wid th 0.9" ANGl ,* 45/6 0 .70 2.25 Mh i Notes:

Summary . . . .. ReqLJl!'t':

d SC'a!'1$ {each has a we.tghlng factor of 100 for coverage}

1 0 0% 1 00% 0% *66.7% Code Cove r age T om i I so% L 10.7% 1) Code Coverage refers to t he maximum of the reqliirod exam in ation vo l ume that is effectively examl!ied with the qualified e-xamlnation procedure-.

2) Best Effort Coverage refers to the rectulred e: xnm nation volYme past th e weld centtrl'ine that i$ P.x a mme d hi ttie <4lC)i9'1 be;am direction w it!h an Appendfl<

V I II proced\.Jte for single sld@d coverage.

Supplementar Report Sum ma ry No.: S2.C5.21.:l10 Exa m ine r: Siste k, P L evel: ll*f'OI E lt.lmi e r: _N...;..,fA

...._ ___ Leve l; NIA Ot he r: WA . *comm e n ts: 1!'540 ,\JlMS*St *21 \.Jf/0 NO*; I*

NO.: si. e.s. 2.1. Mlllic nal

• S upJ m e ncaf R.cp art11 Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 24 of 55 R errort N o.: l MT-SS.01 Rg.4a t 2 page 1 of I UT*OG-0 99 -----

Serial No. 16-1 46 Docket No. 50-281 Rel i ef Request LM T-SS01 Attachment 2; Page 25 of 55 S u pplemental Report MT-SS01 Fig 4a 1 3 page f af RePQr1 NQ.; UT--09*132'.

&.ir'ri 1n.a ty o.: _s_2._c_s_.1_1._Bl>_o_, ________ _ Exam* e r: Mu irhead, Ryan L :Z::: ........._.>

Leve l:

Revie we r: xam e r; NIA SieHe *ew: L eve l: N fA N I A Other: NIA N II fte 'ew; Ske!-ch or Photo: COVERAGE

SUMMARY

Weld Numter We t<J lr lcknt:Yss Wefd Loogltl WetdWidth

.4 75" (.375nom} 50.265 .. .875" fLOW

,/ 0.1 row. .OOA'ICll'LDPSJTKH . *' ////,

il.22 00. INCH TO'D\L RBXllREDEXl'll

'lrU!A'E E:xam i natio Volume O l menetoM -Heig t .163" Length 50.265" W l dth Coveraqe Summarv Requii'ed Scans ( eacll has a weigh in g factor C:)f 1 oo* r or complete coverage) 45160 O"'li> 100% 100% 70 55% ------4 of 5 1.37S: Code Coverage Total I. Otn1 . 1} Code Coverage refers to t he m.rua.rrium pereenw9 e of ttw requ red exam l n afiott wJume Ula t Is etfectlvely examined with the qualified -exam i nation procedu r e. 2) Best ffort Coverage tefers to the required exam nation vo ume past the weld " centerline that is exoimirled n Ule axia l beam directi o n with <Jn Append VIII demonstrated pl'OCOOure for sin g le sided cove r aae. 100 + 100 + 0 + 55 "' 25514 = 64% .

• Md IOl\SI . Suppfame r;t Reports Supp'lemental Report Sum m ary No.; S2.C5.1 1.873 E x:a m I nc r:

Jo.ffr*y D Level: UI Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 26 of 55 LMT-SSO F;ig 4a14 page I of 1 UT-06.054 Pa<Je: 2 of 2 Da l e; ----E xam lrMJ r: Tc l oaky, Ryan J Leve l: Ill RGv l e w: ----------Da d e: ----O lne r: _Nl ....... A ___

l..eve l: NIA AN ll RevlaY/: ----------

Da;e: ----C ommoo t:s: 70 degN!e shea.r wav* codo covOfago for downstre:11m s i dle. Axlalfy 86%, c:lockwlsc 86'% and counter clockWl&e 86% for a total Of 43%. Sketch or Phom:

-Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 27 of 55 Report No: UT-12-107 L M T-S00 1 Rg4a 1 f* page 1 of , Dominion:" Summ a ry# S2.C5.11,0 2B Pg. S of S P_ re: pared by_ : W._ .. _* .*Vu 'K 11-iiHl...

Date: ll/18/20 1 2 . .

• Weld Number 2-15 Weld W i d t h 0.5" A A'? Weld l.er'lg t h 43.98" T h!ckne L 0.490" z ---L-*-2-1 5 -------------....

E L o , F L OW CL -...,.__ / I ,// >a E l Al-0 C f\ Ill f'fifV l O U! DA rl 1 REl'(R 1J!Rh0 '71 DA TE D 4>!1".lOOl:.

I.Ill------o.oa SQ IN. TO Al REO,tJ I REDVOLU M E us MID OS S I DES EXAMI N ED 100% a" T HE RcQU IR EO 1/0Wi.t E US S I DE tr.>'.AMI D 0.0<!

• lt!OOli!O C I C ll Qt l 11£11Tr;rrmr

.04 I .06 -= 0.50 X 100 "' 50% S S T E.FFORT D S SI DE OIR:ECT 1 ON NO EXAM OS SID AX 01 E C T ION FOR .04 SQ. I N * . 04 1 .08 =.S O X 100 :-: 50% NO EXAM. NO C1RC: EXAM DS SJO El!:aminatlon Vo l ume [}imensions

-He i gh t 0.1&3"' Width Coverage Summary Requinid S cans (e ach has a weighingfaclor of 10 0 fo r complete c overage) ANGL E UpSt-Ax UpSt.C i r c Dn St-Ax DnSt-Orc 45/60 100% 0% 45/70 l00% 70 l.2.5 Mtn ... SO% *-***** **-***** ' i Code Coverage T ot!ll I S O% *Best Effo r t Coverage jMax. 25%) Total I 12..5% *-Notes: 1) Code ref .rs to tlie .max i m.um pemmtage o.f the reqt1ired exmn J n atl on vo lu n e mat rs examined with the qt1allfieci exam iootl on f)focedvre. 2) Bes t Effo rt Cnve r llge re f er s to the re q uir ed e:x;am iJ'l atiM v olume p a st: t h-e weld cen t erline t h:;i t i exam lne<1 i n tfle axlai b

• am d i rec tio n with an Appen dbc illll oomonSttal-ed procedure for i>ingfe sided C O\l erage. --

Serial No.16-146 Docke t No. 50-281 Rel i ef Request LMT-SS01 Attachment 2; Page 28 of 55 L MT-SSm Rg4a1 6 , *

• Domm1on'** Report No: Ui-12-108 Summary IJ 52.CS.11.CBB Pg. S of S Prepaied by: W. T homas #fi

• Date:ll/18/201.2 12.'Cl.Ji' Wu l M.H '2.. ):;Ji-Weld Number 2*25 0.455" We l d Width 0.5" _ . . A)i:J ! ";(fi-Wel: d l ertg:th 43.98" I t l *' 2 FLOW EXJ'.\MINED 100% OF THE REQUIRED VOLUME U S SIDE ........ f7>'7777l EXAM I NED 100% a= THE VOLUME DS SI DE l(.r::liL.!

pre IV<. DIRECTION BES T EFFORT. Examlnatioo Volum<! Dimension$-

HeiGf\t 0.152" Length 43.98" W l dth 1" Cover<1ge Summary Required scam (each ha:; a weighing factor of 100 for complete coverage}

AMGLE UpSt*Ax UpSt-Circ OnSt*Ax DnSt'-Clrc 45/60 100% 0% 45/70 100% '70 U5Mfi t: *!00% Code coverage 1 ohd I 50% "Best Effo r t Cover;ig@ (Max 25%) Total I 2s% 11 Code Coverage refe:rs to the mooc i mum perc;en wg e of the required examinatfon volume effec:tivety examined with the qruatified examination procedLJ>.re. 2) Best Effort Coverase refers to the requir , ed *examinal l on voluml! past ttie Vi-Old centerlr'oe that ts examined in tile axml beam With an Appeodbf vm dernons.trated prot:edure for 5 i rui)e' sided l

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 29 of 55 LMT-SS0 1 Fig4a 7 page l of ftD ... (;Ji1'1 Repo rt No. SummaiyNo. PSJ. 4 o r. 4 P r epare d By: UT-11-040 S2.C5.11.1 28 TR AVIS THOMAS 513120 11 We1dNumber Weld Thi:dc;nes.s

.5 , *** *-**-**** 2-06A .375 Date: Weld Length WeldWidtti

.6" I I .i t . I I I L.> I; 1.,.l_i I I' I I l-.L .* 1¥ ...

¥* 1.-.L ,I f I l ,J,.' I,! ' l . ' ! ' '. I I l \ t 1,1 I .... ! 2 0 3 nYCiq>J$$$

I.EM liiME NT 8 i) .'l::W LIS NQAL Si. *100% exAMtEb ".ell SOI.ME I Nl:':HEG S'tt;FFom':OSAAl>\!.Stoa

• 0*0600-IN. T OTAL. REWArnOSAXIAL SIDE"' 0.1<l 9Q-. t-i. 0.061 a, 10" Cl.8x100 .. 00% "P""" NO E X/IMDSAXIALSIOOel)tli!

SO. I N. O<<! I Q.11)" 0.2 X t OO"' l!ll'M. TOTAL EXAMINATION AREA = 0.19 SQUARE I NCHES Exam j na lion Volume Dimensions-H e igtl t .... Len 9th 40" Width 1.1" Coverciaa Smnmarv Required Scans (each h as a we J gliitlg f a.c t or o f 1 00 fo r complete coverage)

Angfe Up-St-Ax o ost;:c i rc D n St-A x 4 5/70 100% , 1 00% 45/6() 1 00% 1{)0% 7 0 BES T EFFOR T=< 20% &-...st Effort (Mex: 25%> i: o ml I *1 Code Coverage refers to the m a ximum percentage of U'le required examina tion Best Etrort co.verage reters to t tte requ i red exammatloo vorume pas t th e weld

• oenteffin e tha t i s exam i ned in the axial beam direclio n wllh an -Appe n d bc Vll I

• lhat is effectively examined with the qualified exam i nation procedure. demonstrated orocedure fo r s in!'J le sided ooveraqe , * .. **** *. . / . **.* ' , . *-d p

-Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 30 of 55 UT-11-020 L M T-SSOI Fig.43 8 page 1 of I ,-Dominion* R.eport No. Su mma ry N o. Pg , 4 of. 4 Pre pared By: S.2.C5.11.161 TRAV I S THOMAS 4 130/2011 Date: Weld N umber tN ek l Tu icl<ne-ss 0.562" We l d lengt h W e l d Wrdth 21" 1)1fl00' :(J.5)1;)' -S,.<;l!lF 4))!511 !!I N't{ 1'! IJS A>>ALSICE !Om.VQ.lif

,'E FJ IAM)<fil) : a B!?S'l'tan'W'r c:6AXW-soo .'12 ro.1t-1 l OlAL Rl!<JU l'IWOOA>a!\L sr.e*= o. *1!t00; 100*'5 3.,., lO*EXMI OSNMLSOO Q07 SO. rk; G 19*::i:Jn 7)( 1.(Xl"" $19\ Ex am in a lk m Volum e Dim ens i ons-Hei g h t .1 87" L e119.th 2 1" Width Ang!e 45/60 70 R.e(lu lr ed Scans (each has a weighing f acto r of 100 fo r complete ooverage)

Up-St*Ax Up St-C r.re Dn*st.C i rc 100% 0% BEST EFFO R T=t6'% Code Coverage Tota l .I Best Effort Covera,ge (Max 25%) T°'1a l I 1} Code Coverage refers to the max i mum peroenlage of the r equ i red exa111ma 1ion volume that i s effective ly examin ed Vllltl the qua l ifi ed examination proceeure. 2 t l30$l Eff ort Cove r age reters to the r eq ui red e:xaminat!Oo

\'()j ume past the weld cente rfi rie !ha t i s exam i ned I n the axial b eam direction wi l11 an Appendix V I ti demons t.rat ed procedure for smale sided cove r all8. 1-5" 50% 16%

Rep o rt No. Summary No. P9. 5 of. 6 Pt e p a r e d B y: Date: Ser i al No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 31 of 55 UT-1 1.0 56 S2.C5.11.185 TRAVI S TH OM AS 51312011 lMT-S S01 F\g {aHl page t of1 Vveld Weld Thicknes1!

2-01 Weld L oogth Wefd Wti th 2 1 f l) ,$1;t 1' 2 V\*1.1) Fl.DN

• • -*-* : .... -: *.,

us .A,JqALSOO 00% V CH N* EX"<MIEO .. BEiBT EFFORT OS AXIAL. $100 *<lm $0. IN 007 lf l13-0.ro3X OOi!!Xl>N i llGA>GA L Sll:lE."GOOSQ , I N 0.00 J 0.13., 0AG X100"'"°*' TOTA L EXAMINA1la.J f\REA.= .23 SQJARE INCHES Exam h1 ation Vo l ume Olmenslons

• He i ght .18 7" L ength 2 1'" Wfdth 1.1" Covmag:e Summary Scans, (eacii h as a factor of 1 00 for complet§!_c overage} Angle Up*S t-Ax UpSt*Cifc DnSt-Ax . -. Dn.:S t*Cir c 45/6 0 100% 0-% 45/60 100% ()% 60 BEST EFFOR T= 14% __ _ 7 0 EFFORT"'-25% Cod e Tota l I 50% Notes: i) Code Coverage refers to lf'le maximum .perce11 lage of tfi ereq u tre d exa.mmaticm "J volume !fiat ts e ff ectiv ely examined with' the qual ified examination prccedu t e. J Best Effof_t Co ve rage (Max25%}TQta l I 14% A ,,_, 2) Best Effort Coverage refers to ltle r:equ1 red e.x.aminatkm volum<t pas t !he we ld

• ____ -.1/7 /' 1' il demonstrated procedure* fo r sinq l e sided cove rAnA.. Joi. cio Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 32 of 55 Report N o. Summary N o. Pg. 4 of. 4 UT-11-03 4 S2.C5.11.229 "'n* .. ., Oh'HftJOft

• Pre p ared By: Data: TRAV IS THOMAS 511/2011 We ld Number w Id lhlck r io s " 3-13 .562'" 0 Gt. XI We ld Lenglh Weld Width 21.125" .8" .,,. :I ll \'\.l 1 t: J O'OY.N: \" 4 1 WM-6r' ' 46 B JlV'I. AXIAL DE-

• . 'to SQU'\Jl;E. IN JMGi TOT/II. R2D\JIREOll6 AlU<\L Sli:!E

• 02300 Q.Z)/03tl-1 x.'

Examination Volume Dimension

-Height .167" L n gth 21125" Width C ov era.oe SumrnaN R equ i re d Scans (e a ch has a weighing f actor o f 100 for com plete 00\*erage)

A rig l e Up..Sl , A.x . UOSl-Clrc --*-* D n-St-C irc 4517 0 1 0 0% 0% 45/60 100% 0% 70 BES T EFFORT = 2.S:% Codo Co ver ag e Total I Best Effort Coverage (Max 25%} To t a l I ;Notes: 1) Code Coverag refers t o the maximum percentage of lh e re q u i red exam inatio n volume t hat -ef f ective lv exa m i ned wi th ll'le qualified examination procedu r e. 2) Best t tf o rt Coverage re ters ID t he r equ i re d e.xaminatlon volu m e past lhe we ld oen rtne th t j examined io the xial beam direction W'f th an A pendi'x V I II demo ns 1r a t ad procedurn for sing l e sided c01teraga. 1.1" 50% 25% LMT..SS01 Rg4a20 page 1of1 Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 33 of 55 Report No. Slfmmary N o. P g. 4 o.f. 4 UT-11--024 S2.Co.1 1.248 L MT.SS01 Fig4a2 1 page 1of 1 ftD* ** ** *om1n101r Prepared By: Oa t B: TRA VI S THOMAS /.;r. Y..:IP*tt 4'28120 1 1 Weld Number Wo l d ThicMO$S . , ,* T H-h -t "fR 2) .M!!1' 3'J o">6fr 4) MT Sl .ml' .5 62" F ICW 1 4 Weld L ngth WeldW i dlll 2 8" V\E L O CROJ\N IMDni

• 0. 8" 5-35 DS AJOAl $ -100li) vou,.t EXAldNSO -t2 IN:HIB 6RJTi;FFORf Vi>AXW. l;l:E*. l!le!Q.lt( *rcrrALMBJUFeOl..SAXVIL SD;* 14ti0 tN. Q'1?1Q"'4* "O T AL EXAM INA TI ON AREA= .2 6 SQUARE INC H ES xamlnatlon V oll,Jml'!

Dimensions

-Helg t .1 87" Length 21" Widlh 1.3 Cov&raM Summarv Requi re d Scans (each has a weighing factor o f 100 for CQffiJ;Jlete

.. Ang l e 'Up-SI-Ax UpSt-Circ On St-Ax

• Dn-S t-C i r c 4517 0 0% 100% 45160 0% 100% 70 BE S T EFFORT "' 22 % Code coverage T o tal I &0% Bei;t E ffo rt Coverage (Ma x 25%) T ota l I 22% Notes: 1) Code Coverage refe r s t o the ma.xi m um p ercentage of the required exam i nation t.hal. is e ff ectlveJy examined Wi t h the qualified examination procedure. 2} Best ttort Cov ge reters to ttte req 1 d examination vo lume pa t th w Id centerline ttiat is exam ined i n the a:icial beam direction wi t h an Appendix Vlll demo11strated procedure for sinqle sided coveraae.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 34 of 55 ,. , . , . ' Supplemental Report LMT..SS01 FIQ 4a22 RepOf t __ _ sum m ary No.:

E.J.;aJnine r: H a nnon , Byro., ,

le., e l; 11-f>l.)I Exa min er; NIA / Leve l. -;;;;: Rl;!v i ew ar: S l teR6'\<icw:

com m ents; Sk o l.th Cf P hOlo: El..DOW

.. , . ..., ANI! eviow: CL .Oi 5-0 , lN'..11 Bl!ST .En'OR T EXAM ARiiA Page: 2 of 3 Code Coverage Tota l 50% Notes:

e{Ma£25-%}Total 1 0% 1} Code Coverage r erers lo ll:le maximum pereoolage of U1e reqtiifed examination uiat 1$ e f fectively examined wilh !tie qualified examination procedure. Z) Beat Effort Cove r age refers: to the r equired volume pas t UlO weld c.antefline that Is examined i n too axial beam d i rection wifh an Appendix VI 11 demonstrated rocecture for sin le s lc!oo covei:a e.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 35 of 55 !' ... . *, .

., *. Ii' ** ** ; "< C om m.ents: Ske tch or Photo: Note s: Suppremental Report Rep<<t J.G SQUA R E INCH T('ITAL EXAMIN.\notl MW.A *'.'.. 0,_ \,,,:-.. ,\JtM SQ fWW rn ********-****

'"---***.....,, ... ------\ ! -l ---------------i-t<R. .i::w .339' JW .il'W' NP E 100% 0% Code Total 50 Best Effort Cove r age (Max 2S%. Total 6% 1 J Code re'fers to lhe maximum o t 1he required examinatiOtl volume tnal is effeotivefy examined w n h the qua l ified exam i naoon p r ooedu r e. 2.) Best Effort Coverage refera to the re<r u i red e xam inatio n vo l ume ;past mo we l d oenterl i ne that Is examlned in t he axia l b e am direct i on wlth an Appendb< V III demoostr.ated. ooedurofor sin t e slded covers e. LMT-S001 Fig4a23 page 1of1 ------Oa te: f;t'5' tf.1 /de alE: Oa te:

Supplemental Report Sum m myNo.: S 2:.CS.1 1.346 Exam l l'IOr; Odeg'lrd, Jeffrey D EXM!l ner: TOl:osky, Ryan J Other: WA Level: Ill Level: . .. lit: Site R evie1'11; L evel: WA ANll F\Q.\lf<M!

C<immen!s: 70 degmo w;ive code coflr119!.!

for iap11troam 5ide. Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 36 of 55 Rl.1!JortNo

.: lMT-SSO fig 43!24 Pa ge: 2 o l 2 Dale: °""' Date; ,r -Axially 52%, clockw i se tl2%, and counter dockwh1e 5.2% f'Or a total ot 26%. Best effort CO\l'Ot.age for dOwnstrl!atn side. Ax i ally 'D'l'I>,

0% and 01X1n.ter elockwise 01 ... Weld 0-0 1 .........

Serial No.16-146 Docket No. 50-281 Rel i ef Request LMT-SS01 Attachment 2; Page 37 of 55 Supplemental Report lMT-SSlJ1 Fig t 4a25 page1d1 , ----DOlnl t JHQd' No.: I.IT ..(l!M O a Page: 5 Of S Summary No.: _s_2._c_s._1_L_34_n

_______ _ Reviewer.

Wayne Thomas Examlrll!f" Thomas , Tr<ivis w_ LT. L fl!ll()I: 11-P D I E xa min er: NJA. Leve l: NIA Olher: NIA L ev : NIA :::::*?F=

FLOW COVERAGE

SUMMARY

Weld Num'b0 r Weld Thickness Weld length Weld Wkllll 0*02 O.Ol 40" .5" 10 ,./ CL I ,. -.. "'"""-. -------------(..

= .16 SQ_ IN. VALVE " --, PIPI; EXAMINED . .(}8 SQ. IJlt OS AXIAL DIRECTION

.. _ EXAMINED .0$ $Q , IN., us AXIAL om_ BEST" EFFORT 100+100 +100-. o :roo 14,. 75% Examlnatloo Volume Dimensions

-He(ghl Covoraae Summary ANGLE 40 Width 0% 100% . 70 1" Code Coverage Total I 50% Notes; *' Best.Eff'Ort: COverage (Max 25%J Total I 25% .1) Code Coverage refe: rs to the maximum ;per;cenhlge:

of the r equired exarnln.ation volume that is effectively exam i lled with the qualified e:xamloatiori procedure. 2) Best E ffort Coverage refers to tlie requi r ed examination vofume-past lhs weld centerline lhat Is examined in axia l beam direction wrth an Appemfix VJ l i de.monstrated f()r sinQle sided coveraoe.

AND CONTOUR T!l.K.EN fROM PR EVIO US DATA. ome 11f9f200 9 Data: Date; I'/ . ;!, W Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 38 of 55 Report No: UT-12-087 Summary# S2.C5.11.3S1 Pg. S of 5 __

by; w. Ttiwi1i1$ l..Mf-SSO F i g4a26 page *1 o'* 1 Weld Number Th lc:kn:ess 0-04 0.349" Date: 1/ 8/201 1 tj?. .1 1J We l d Width 0 , 8"' J it"'-length 40 (l 1 2 __ L__

.. ,,, ____ '* -...... ......... , __ ,,,_, T i'RE'lllJUS Dl.'T A RE?C"R T tmlNO 767 OATED 04!'.i&':.>..'<<!. F L OW CL // .. / ""ft40Ui:l ilrut *t-.-x1..-t

• AJ1; 00.t LJ\NG E ----._ -J<:;;;>"? ---

P I PE .M:r .<mr ----!Uf----

!IO I<<. R E<lJIRE O 00 tlG. DtX .ur icu I ll .,-;77:777 z 1 t:r.-. . () 0.U!li> "O' IN. Ue SIDE A.'lC lltR ECll<:tl X 2til';* ' 2 t.'ll' U U.X ECTION t:rr i.:nXo\11 !i>\110tJ l\lC Ol 11'8:TiCµ

.1l Cl,!; TO Cl:.t<AOU<A1l

• UIO w* l:tCT su. ll't.x :n.n-L!;l'G 111

• rrrn.i. 1wt<E.n fld'lfl)$

a ""'"';;Jr3*0.!a.

I N. 00 .SIOE hX Olll£Cliatl( "1.1t'f >2.JaCIJ. I M. .X J,. IN I Th'li 00 'Me.LOOI.El

.016)13.:1 *: QJ.114 NJH'.XAHI rooo ,\)( C'f)Q>j : M'.1 13. x 1 00. ' Examination Volvme Dime1 H lght O.U 6 ,. Width l.3" Coverage SU!'IH'l'liU'Y Required Scans {each a weighing factor of 100 fo, oompfete covef(lge)

AN G LE Up, St-Ax UpSt-Ci r c; tin-St-Ax onst-<:irc

-45/60 100% 0% 45/70 80% 7 0 2.2!>Mlt.t

" 12% : ' *--* ' Code Total I 45% " Bes*t Effort Coverage (Max 25%} Total l 3% NotH: lJ Q.-)dt! Covetage refers t o the ma:icirnum percentage ot the required e1tilmi n at£on volume that is C!ffKtiVe l y e){Clmined wit th!! qu.1h led exami11<1t on p r ocedure. 2J Best Effort C.m1.er.age refeH t o tl1e required e,rarnJnatfnn volume past the we l d ce<nter1irte th;Jt ii; exi3rnined in ttie axial be.am d111 c.tlon witti an Appendix V III demo n strated procedure for sing l e :si d ed Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 39 of 55 Supp l emental Report Report No.: l MT-SS01 Rg4a Q,7 page 1 ct 1 UT.09-109 Page: 5 <>f 5 Summary No.:

E'l<amJrmr

Tl"lomaS;, Travifl W. . . j':T, L eve t U*PO! Exermner; NIA l11ve l: N1A Other: NIA L!ffil l: NIA Comm en Ii?; Sk:elc h or r>hoto: Wold Number Wcld T h ic kne$ Wcld Lefl91h Wek:!Wi'.<l l h Q..05 .3 7 5" 40" .6" FLOW 00+100+00+0

=286!4=71.5% Examination Dimen$lons

-Height l!l<A i.t l!lt!).tv'fn IN OOA>Cl'LD-flroTQ< IN.U&-.IJ!R B'.HIOlol llE!!!>EFl'MT ;;5'."*""' °' ,.., "° IJ?IA)Q ...

1't>Tllt.<;QeC RtJDUlllID iCtAM -E!>>. 1'9:90. tot .13" l ength 40" Width ANGLE* 45 70 Notes; Coveraoe Sumrnarv UpSt-Ax UDSt-Circ Dnst..Ax IDoSt-Orc G% 100% 100% 1) Code Coverage lo 1 he max i mum pen::er'ttage o.f the requ i red etamlnaUon volume that is effectively ex amined wilt 1 the qu al lfied exam i na t ion procedure.

2) Best Effort C O"vemg e r e fers 10 the r equired exam i nation volume past the weld ce nterrme t h at is examine d i n the axia l beam d i rection wiUl an A.ppeti dixV l ll demonstra t e d oroced:ure for s ln gle sided coveraae.

Md1i:L."f!

a t-Su ppl e 4ntlll Rcpom Date: "', 'i* o '? ::: ;'jl:/tri

. Suppfemema l Rep , ort Stl m ma ry No ,: S2.C5.11.440 E xa m Iner: Odegard , J e-tfrey 0 Lw cl: ID Exa minar: !olos'9'., Ryan J Lcwei: llL Olhof:

____ l eWJ: NIA <'.X!mmoots

eo 'degree &hear Ml11{!' code covcm11go on down$troam IUQe. Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 40 of 55 lM!T-SSll 1 Flg , 4a28 page 1of1 Aev<n t No.; __ u_r-OG_. _--0_4_1....__

P ilfJP: 2 Q f Axially 1003 ,

100.% (;Qilri:ter c:lo<:kwlse 100% for al totnt ot 100%. WELD 1-08 Sketch o r I'hoto: " f (( 1,i--

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 41 of 55 Supplemental Report flec;ort tro.: Commrirl1a:

Weld HtllTlbetr M 2 Wofd U>" Wefd Length: 33'.Tr' Weld W t<fth: 1.0" Flow E:xam i na.1l-0 n V ol ume Dimensions L e ng'!h mu.I: Wid t h !&:

d Scans (each scan has a wei-:v""'h""'li'"" n-. ... ct-:-o-r-of 7* '10""*0 :::-. 'lo_r_com_* ,....,.....,.....-

u St* Circ ' ons t-Ax 5(}% % T otal Not.e'S: 1) C cvorag.e r efers t o the maxim um p erce n rago al the r oqidred exam rna liol) vO!ume that is ()ffectivel y exain lned wi th the qualified examina tion 2) Best Effort Cov e rage refer s 1 0 IM req t1f r ed e xam i na tio n volume pa.s t the w el d conte1*1i ne that is e.'<amlnec.U n the axial be am di recti on wilh an Append i x VIII demonstrated prooodure f or si<JOO c<iv e r a g l:'l , LMT-SSfr1 Fig;4a29

---

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 42 of 55 !..MT-SS01 Ftg 4 32i3 R eport No: IJT*ll-1 0 3 page , of 1 summary n $2.,CS.ll.702 P g. 6 of t> _,E',,,U Prt!pared b\r: W.

r}'J . We l d Numbe r TI1 i ck.ne ss 2-01 0.543 Date: 11/16/2012 Oll1f.?" *N;M'f.tt.

We l d Wid t h I \\ We l d Le ngth 21" Cj.*_ ____ ..... 1 __ _,__ _ __.o __ __.** .. ____ ..... FLOW 001. ;--2-0 1 CL // ---*----45.,,..* / VA L VE *. ' l -

--PIPE .11 SQ. IN. iREQIJ I R:EO US AND DS S I DES EXAM I NED 100% CF THE REQl Jli RED VOLUME U S SIDE ii>' EXAMINED 0.02 SQ I N. OS SU:>E AXOIRECTlON .02 / .n"' 0.18x 1 00"' U l% B E ST EFFORT NO EXAM FOR 92% t:l$ S t OE AX DlRECi l ON Exa mlnatlort VofUfnf! r>1me1.sions

• l e n gth 21" Width 1.2" ANGLE 45/60 4 5/70 GOL N otes: Coverage Summary Up.St*A x U pSt-Ott: OnSt-Ax DnSt*Grc 1.00"k 0% 100% Cade Covernge Tota l I S O% *Best: Effort Coverage (Max 2S%} Tota i I 4.S% 11 r efers. tc the maximum pen:;-entage of the reQl!ited vo l\!me tha t iiS effectively e Jt.a mlne-d wffi1 he <l'J<ilme to t"e 1'!:!(1 lJlr"rl il!lttimlnat l o n pa s t tti e <.eoterlrne that Is in the-beam direction with .1n Appemt i x VII I d e monst r<1ted _procedure fo r S" lnF!le sld oo c-OVerag*.

Serial No.16-146 Docket No. 50-28 1 Relief Request LMT-SS01 Attachment 2; Page 43 of 55 a Report No. Summary No. Pg. 5 of. 6 UT-1 1-016 S2.C5. 11.719 l'Dominion-Prepa r ed By: Date: TRAV IS THOMAS 412812011 Weld Number We ld Thiatle'.OS

.582" Weld Leng t h Weld Width 1.4" l *1 LJ.. .. "-. .J..2.. . .t.-t.. ... l-.. L..,l ____ ,_I I )

... /

.. 2 r .. "I) .!lrst' ;!) !J'f2* :g .*!i47' *'.!* .CJ !J*'l'l :;i mi.

'.ll? "' 0 :I; 3 Y.e:t.0 0'>0\".t-i V\Hlll*1"'1 !f" 1.16/\'A A t.s "'0.18 SQUARE INC HES W'fl!ESTEW<lRT OOA.Xl"L Sf . **0.10SQ rotAL REOUREI:E OONWl..lil l:E SQ. I N 0.1 0 f 0.21 = ,.4.7 x 100 = 47% ro* /liXU'ii.

SI LE "'OM SO. 0.0110.21=

.006X 1 00=5% iC >VIMAXIAi.S11 JE" o.1 osa. ON. 0.10/0.2 1:.48X1 0Q i=48% Total Examination Area= .39 SQUARE INCHES Exam ina ti on Volvrne DimenS<lons

-Height '187" Length Width ..... J.: 9" Cove r aae SummaJY Re.auireg Sca11s (eachha s a\lle!ghfng factor of 1 00 to r comp le te coverage) Angla Up.St-Gi r e D nShAx Dn-St*Circ 45 J 10 100% 0% 45160 100% 0% 00 R L BEST EFFORT"' 1% 7 0 KL BE;S T EFFORT= 12% , Notes: Code Coverage Total I Bes t Effort Coverage (Max: 25%) To tal t 1) Cede Coverage refers to the maximum percentage of the required e)(amination v olum e lhat is effect i vely examined with the q u alified e.X!lminaoon prooe dure , 2) Best Effort cove r age r e rers t o the r<<iuired examination Volu me past the wekt centerline t h at is exa min ed i n the ax'.ia l beam direction with a n Appe n dix VUI d em onstrated procedure for s!ngle coverage. 50% 1% LMT-S SO I page 1. of I Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 44 of 55 UM-SS01 fig 4a32 page 1af1 Re1>ort N o: UT-14-079 S u: m m ary# S 2.CS.11-7SS Pg. 6 . of 6 by: W. Th oma s Date; 05/0.9/201 4

We l dN1.J m oe r Th ickness 1-0S Wel ti Wi dt h Weld l en gth 0.7 21.25" .. -*-* .. .. _ _._ __ _._ __ .____ _ FLOW 0 , 19" H T X 0.6"'" WIDE or 0.114 SQ; J N.X.2:1 25" LENG TH" : 2 A2 C lJ c IN. "' REQ O I RW VOl U ME l l!SAN'O OS $i!;tES 100%

liOILiJME.U$$i)E . Ei<#.ilNEO 0.034SQ.IN

.DSSID IHOR12.2 5" LENGT H ( *l:le:ST FF Ol'tr. v --.0114 x12..z s* = OA16 C'J.IJ;j.S ISST a'FORT ,4 11}(2.42: *0.1 7x100

• 17%1'ESTE FF ORT E)W.1 O S SIDE F OR 41 ')(>AX OIREC T IOO Ex11mlna.tfon Vnlume D i mens lons*-* He f ,ght 0.19 21.25 Wldlh Coverage Summary Requ i red Scans (each has a weigh i ng factor of 100 for comp l e t e coverage}

1.2." ANGLE VpSt-Ax UpSt-Orc DnS't-J\x D nSt-Orc. 4 5,60 1003 100% 42% 42% 601. "'17% Code Coverage T o t<il I 11% 1 100+ 100+59+42;;301/4;;75.25% *eest EffortCoverag

, e (M ax 25%) Total 1 a.2s%

1) Code refer s to them _ mttm perc;entage o f the required examinatlio n vo l ume that 1$ effec tiv ely exumlned w i th the qua l l!led examination proced u r e , 2) Best Effort Q)verage refu s to t he req u i r<id vo l ume pn rt t th e: weld ce n terl l ne that exa m!Iletl In ttie ax i al beam mrect;ion with an Appendix VIII demonstrated proced 1u e for Sl l')Jil:e Sided rovE!lage. ,f,/!1 S uppl ementaf Report Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 45 of 55 Report No .. page 1 o ft ------P a g 0: 2 o f 3 No.: s2.c s.z1.o o a ............................ Exam i r lif'i r: !iarmon , Byron ;Ji6= l.1j11e l: 11-f>DI Ex;iminer: NfA LovaL N IA Lev-0 1. NfA Comment s: Ske t ch or FLOW PH'f: CL . ... . .. .. .. . . . . . . . ... .. . Q. I 8 SQi J AR E fNC H TOT AL REQU!RfilJ YO UJ M E 0.03 SQ ARE JNCH NOT EX.A.'vllN'ED

• 0-t e: os/, -s/n o ie: 6"°Pc,.;:o O:a l e: Cooe Coverage Total 50 ""cove-* -rag-e-.,.,.(Malc.,,..

.-, """.2""5%,:;;,l"""T,,...ota.,..... 'T'I

..... -tJt 1) Code Cove r age refers to the ma:icimum percentage of the required examination

• vo1'Jme that l s effecfjvely examined wilfl the qua lifi ed examirnition prooodure. 2) Best Effort co ... erage refers to the r equ ire d examination volume past the weld centerfine tn:at i s examined in the axial beam d r reclion with a n Appendix VIII demonslJ:aled rocedure fo r s i re side<! OO'Jlefll

'-e.w Ser i al No.16-146 Docket No. 50-281 Rel i ef Request LMT-SS01 Attachment 2; Page 46 of 55 Supp l emental Report LMT-SS01 Rg 4.:64 page I of 1 R e por t Nn.:

S1<1rnmary S2.C!L2'.1.010 ..;;..;..;.-...--....;..;;..;

,,_ ______ Elmtrt i ntll'

Harmon. Byro n H $ ti'l>lm i ne r: NIA * ,_lJWel: . ll*P'DI Leval: N!A L0V : N!A Ot h er: N f A Wei<:! J.J u mbct .. =-.. -----Weld -""" We l d !.Cl\g1.!I:

_1...., 0 ,,....998.,,..,_"-----Wefd Vildth: --'0'"'"*.6"'......_

____ _ FLOW -o.6"C J-0. !9SQ U AJIB l NOITOTA l. RJ!.Q U JRE D

• O!UM!i: ESS>""'Y"'

0.06 SQL!AAA loo-I NOT H XAMJNF J) ,.

• 0.l>C SQ UA.REIN01 fi l:lST.l:ifl

'OKrC'QVl':.'J<AGE Code Cove r age Total Best Effort CO\fEr.lge (Max 25%) T ota l 1) Code Coverage re fen; to the. max i mum percer11tage of the 'required examination vo lu me tttat f$ effectiv e ly e.'l<amined wrth ttie qua1med exam l natiOO 2) Bes t Effo rt c*owrage mr ers to !tie r equired examinaciioJ' volume past t11'C weki cernerlme tnaf ls exam i ned in the axial beam dire ction with an Appendix VIII demonstrated rocedure f or sin le sided oove e. ------Pa9e-: 2 oJ 3 50% 1 0 Seria l No. 16-1 46 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 47 of 55 Wti ld N u mbs-r Weld Thief.; ess

• !-: I >. ,J,..., I ;) 1) A:lle <l}WJ .. I. FlDN Report No. SUmma.ry N o. P9. 4 of. 4 Prerpared 6';: Da te:

l e gth Weld W id th S2.C521.0 1Z Travi s Tlloma s 41'2112011 11.2 5" IBTt:f'f'OO'f US AX Ll\LSl l:E., D:t otlQ; N SI:) lN 0,10'f0i11 2: 1nl l< 100*91"1. Examlnatfmt Volu m e O ime llSJon s

• He ight .146 1.eng th Wi d t h 1.1" -****--*--Coverage S ummary Requ i red Scans (eac h has a weighing factor of 100 f or co m pl e-te c o vera ge) Up-st-AX U pS l...Circ_

Dn-st-Circ 45 170 0% ' 100% 45/BU 0% *IOQ% 1 0 Best Effort .2'3% **-** Code Coverage Total I 50% Be:sl E.fR>rt Cover.age (Max 25%) T-Otal f 23% NotQ: 1) Code Coverage refe rs to the maximum percentage of the r eq ui red *e x amiMtloh vo l ume that is effecUvely examined with the qua l ified examination p rocedu r e. 2) Best Eftort Coverage r ete r s the requ i red examination volume pas t me weK! oe t er l m e that is examined i n the axial bea m dlrectlon with an Appendix VIII demonstrat ec Proc e dure f o r si ng le $id.ed coveraae. -. *-* L.MT-SS0 1 F.g 4a35 pag e of 1 Serial No. 16-1 46 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 48 of 55 Supplementa l Repor l l MT-SS0 1 page I of l S t.m 1 m a ry No.: S;?, C5.2-1.019 Exo m i n et: Poste r> tlarry E E.Ji:a rnfner; WA O t h er: NIA Comments: LW cc.I.Al l e'le l: IJ*PDI Ii ff I G.Jt AN -

b f"IUtA)V, ... -....----,f.--....

..

/:3; .. .. ". r t-cl.. Repot t l'ID.: -----P age: Da t e: ..

LolhtR Ralt * !/ 0 Bf;ST' i!t: Fdf ff c.6VeR.R}$/! .. .. ..

Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 49 of 55 LMT..SS0 1 Fig'4a37 page, 1 at 1 Supplemental Report Al.lport No.: UT P.ag<r.. 2 or 2 Summary No.: S2.CS.i1.023 Exam i n tN: Poslor] Hiln)' E ll*l>DI EY.arn i n M: WA Love!: WA Dale: ---[l/17/oC,;

r r -Othor: NJA lm'GI: NIA tlt:"rff *.

• 52d.l!:'. 2.J ,oZ.J 1/-C' j, &> **: 't " -:--"" -*'"'e...w _ .. _'. * *-r-: ll_o-%--1'. ___ . ttP1t'ftttMI CJ <9 C f *\JALVE . flflt **

{! tJ.M! /!.t> _\/ER.A 6.e __ . .J..lt"""t)_

.. ........ __ 1},p;ff EFHiR.T &vtt.At%E I !it5". 'fa Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 50 of 55 RepOftNo:

UT-12.-110 Summary *rt S2.CS..: U.036* lMf-SSO Fl g!4a38 pag e '1of1 Pg. 4 of 4 Prepared by: W. . hamas 7fT--;0* .** Date: 11/17 /2012 fl.rs fl n Joj'l,.,.,->

.. f'.J . . . jf'..V..Y r' We ld Numbe r Thidmess 0.46" Weld Width We l d length 0.4 .. 2 *****************

• • • • • • • -** 0 FLOW .. 1 IV c 'Ii$.$ T IJO'.EN moo tlJ\l n f::: .... EXi'i li!lt<!l'D 1 00'/, (l'Tl<E OO S lb E P7777J l;YAPA I !;JI t OD'I CY11i': mS I OC t'.'.t:'.L.L'..LJ DE:ll t Hl\:ll'!t. NOQl!C SCAWi \/ERE PE!roll:MEO W S t Of Examinatio n Volu me

-H eight 0.15 3" L ength 1 1" Width ANGLE 45/60 7 0 2 , 2:SM l l!. . .. .. .. . . Coverage S ummary Required Scans has a weighing fuetor of 100 for mmp l e t e CO\ler.a g e) 0",6 1 0 0% 1 0 0% *1 0 0% Co d e Coverage Total I s o% '" B e_st Effort COvernge [Mall 25%)1 Total I 25% 1} C ode Coverage r e f'et:s to* t he i't'l l)\dmu m pere;ent a s;e of the requ:i red. examination volume U14t is *f ec,'ti11eiy examined wltti ttie qualiried exami 1 atilon pt0<:.edote. 2J Bl!st Effort Co v e r;t g e refers. to tihe l'f?Q u l md exam l.natlon volume past the weld c.enterline that ii> i n the a x ial beam dit1!ction with an Appendix V It demonstrated p roce d ure f or single sided a werage.

. ,, , . .. ;' .* ' .. "' 0 * . , '--":"" ....... _......__ . J jD 'EBEd BB£vfl!::l LOSS-1.l'fl-

• , .,-I >* 99 JO a6ed :z luawL.penv lSenbe"tt J9!19'tl BZ-09 'ON 9v -9 *oN 1epes "

• Suppleme.t)tal Report

-'t;J/ ... h-t>SA l.ffrQO-(;QS ol S ' c.:.vl e cw u fJ sr/?.e1ur1

• • .....,,,--+--Ji--,--+--.+

J*

• new.11rr11.El/ftl

_ _J..;._J.:t;;;:.,;;+.*-**--1

$ CS."2 i..tJ3F 10/Jf /ci>.

• i:.l:in11..

C(J.vi!"!l.IM'e . l/3,3 "'/}_ &Br fi::rol'.lt

15. _1; Serial No.16-146 Docket No. 50-281 Relief Request LMT-8801 Attachment 2; Page 53 of 55 Supplemental Report Summ;uy !W.; S2..CS.21.07ti Exilmincr:

CarraMr; Terry G, ::lE::::__

Ltl'1-0I:

ll*PDl Re'.'i&wae El'J'imlner:

NfA.

WA Slto.Ft-.wfow:

Otl'u:ir:

NIA level: NJA ,<\NII f!eviow:

\ Umitattoo dW;, tv &ll[}pnrt HtMJZ. Upme.w side is fr()Ji'l tt'> l (4;2." t-0t:il).

Om'lnstr<:am side limited by :j;tuxirtrl Ly of pfate fut HOOO:, limittitkni on side fro1!1 7" to &.1." (L 1" tctml.).

roo'i!UI i1Hi'l% eii:aniined.

e:4.2"/1fh996").

fanitali\ln Lt" in m, (l?;1Ullln¢il

0. l"/I (t996"}. Addilio1rnl llll:Jiw.tioo dine to bridging of the tr.ansduccr ot'I tt1e eroow ilitt<.idow, th.islimitatiou was 3" long, rcrnlting inn.% e1rnmlned O"fW,996"), 70" trntlBdutcr oppnsite of these bowc\'<'lr the 1.1

llmifijtloo allows tile 7tl<' only 3.i" -0f scan art.>a C?J?OSite support H(l(t2 ()(' 74% Qf !lhe liml.lliti<>>1 m:Cii-':fbe e;qt1,11volum1H

..

= l)J6M sq. in. one*halH!lis

'uluroo fa 0.0842 i>q. in. 111e 7(}" c1:rrnred O.M7:l sq. in. resulting in 56%

cxmn scnum'ld wiili tlw:74.P.*

Best efi:0rti:overageook1.il.att4 as f<illows:

Nu oo:<lil for cireumrerentlal i:xam.'i.

Axifll not exani.lm:d.

for 38% (100%-62%).

Of this. 3E% unly'74% was e.tamined, resulting in 28% tuef...al_

56% of 28% t.'qll:ifr>

J 5.(18% Axial. downstream not e.xantincil

£;.w 10% (loo'il,;900.£.).

Of this l ()% ooiy 74% wa:; e<<:amineti, r.esu1ting iu ?.4% t-0tat 56% of7.4% equals 4.144% {I + () + 15.68 + 4. 144 l 4 = 4.956% lMf-SS{l1 Ffg4a41

.1 cf:2 Serial No.16-146 Docket No. 50-281 Relief Request LMT-SS01 Attachment 2; Page 54 of 55 Supplemental Report LMT-SS01 Frg4a;1 pag?2 oi2 R;,port No,: __ u_r--0_s_-_12.:...1_

No.; S2.C5.21.IJ79

£!:.:mniru!r:

Ctlttaher, Terry G. fammlnar:

WA Otoor. NIA Con1mems:

Weld Number: Q-OS Weld Thickf"IGSS:

Q.521" Wald Length: 10.9!1§:.

Weta Wklih: 0.55" ----2> Lc-vel: lt-PL'il Level: tUA lzy,'QI:

Examtnalhm Volume rnmenskm$

-Height 0.17" Width 1.CIB" Pagac 4 of 4 Best Effort cOiierage (Max :25%) Tctal 4.956%

1} Code Coverage refers to tho maximum percentage of the requlred examina!iori volume that is cflcctlv4'.'ly examined with tha qualified exam1natkm proceqtiru.

2) Best EflM Coverage refers to the required -0xaml1t>1ttion votumo past lhe wctd centeriino that is examinod in 1ho axial beam dirc*:::tion wlth M Appendix vrrr demoo$tl'efed procodure for single side-ct Se ri al No. 1 6-146 Docket No. 50-28 1 Rel i ef Request LMT-SS0 1 Attachmen t 2; Page 55 of 55 LMT-SS01 Rg4a4 2 page 1of1 a '#Doml lon° Re po rt N.o: U T-12-UO Su m mar y n S2.C: S.2 L119 Pg. 5 of Ei ' bv: W. Th o mas #L-D a e: 1/17/2.0 1 1 µ.. irf-f 'l--v# ,r1µI. r , </1 4/,,,, 0*15 Weld W i d th We l d Number Thickness 0.43" \i eld L en th r 2 I_ f>I E Examlmitlo n Vo l umo O i me0:si;0ns

• 0 1 FLOW lii X i'MIN1'D REOO I RE D \rQ..OOE 00 S I E /;:J. i'.ll RF.ClJO ll E.ES T EFFOU He igtl{ 0 143 Le11gth 11" Coverage Summary 0.5" 11"' 2 Wltl t h 1" Required Stans (each has a. we i i;:hin g factor of 1 00 fo r com p lete coverage)

-. AN GLE l_lpSt*AX UpSt-dr c OnSt-.Ax D nSt-Circ t15 100% 0% 4S/60 100% I I *100% Code Coveraga To tal I 50% llest Effo rt Coverage {Mme 2.5%} To ta l I 2 5% Notes: 1 1 Code Coverage re tq. me maximum of tl rlM'.j ir.tW t!!>:dM i Mti!: u'i ool u me tha t is effectil/ef'{

exomined with the q1.1allfied 2 t Bflst E ffn rl Co-;; -c to th teQu i red e>:am i na t i o11 vo l ume p ast the we l d ce terline th0 I s examln f!d Ii\

a al dire.ction wit h an Aµpe n d[lc V III demo n strated prccP.(lure f or sl11elc $ided c:overag.e.

Attachment 3 RELIEF REQUEST LMT-CS01 EXAMINATION CATEGORY C-F-2 PIPING WELDS ON CARBON STEEL PIPING Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Dominion Surry Power Station Unit 2 4th 10-Year Interval May 10, 2004 -May 9, 2015 Carbon Steel Pipe Welds Relief Request LMT-CS01 Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 1 of 9 Repetitive/Duplicate Relief Requests in Accordance with 10 CFR 50.55 a(g)(5)(iii) lnservice Inspection Impracticality

1. ASME Code Components Affected ASME Code Class: Examination Category:

• Item Numbers: Code Class 2 C-F-2, Pressure Retaining Welds in Carbon or Low Alloy Steel Piping. C5.51, Circumferential Welds: Piping Welds 3/8 in., Nominal Wall Thickness for Piping > NPS 4 C5.61, Circumferential Welds: Piping Welds > 1/5 in., Nominal Wall Thickness for Piping NPS 2 and NPS 4 C5.81, Circumferential Welds: Pipe Branch Connections of Branch Piping NPS 2 Component Identification:

Refer to Table LMT-CS01 Material:

Refer to Table LMT-CS01 2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement ASME Section XI, Examination Category C-F-2, requires 100 percent (%) volumetric and surface examination coverage for Items C5.51 and C5.61 circumferential piping welds. Examination Category C-F-2 requires 100 percent (%) surface examination Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 2 of 9 coverage for Item CS.81 circumferential piping welds that are branch connections.

The alternative requirements of ASME Section XI, Code Case N-460, approved for use in Regulatory Guide 1.147 Rev. 17, allows credit for essentially 100% coverage of the weld provided greater than 90% of the required volume or surface area has been examined.

The alternative requirements of ASME Section XI, Code Case N-663, approved for use in Regulatory Guide 1.147 Rev. 17, eliminates the requirement for a surface examination for category C-F-1 and C-F-2 welds that meet specific criteria.

4. Impracticality of Compliance Pursuant to 10 CFR 50.55a(g)(5)(iii), relief is requested from the essentially 100% volumetric examination coverage requirement of the subject welds due to the . physical configurations that limit the volumetric coverage that can be obtained.

The subject welds were examined with a manual ultrasonic technique using pulse echo ultrasonic instruments and search units to achieve the maximum examination coverage practical.

Examinations were performed using personnel, equipment and procedures qualified in accordance with ASME Section XI, Ap*pendix VIII as implemented by the Performance Demonstration Initiative (POI). No alternative techniques or advanced technologies were considered capable of obtaining complete coverage of the examination volume. TABLE LMT-CS01 -Carbon Steel Pipe Welds Drawing I Line# / ID Weld Limitation I Item Pipe Pipe Thickness Coverage Results I Fig. Material Dia. Achieved System (Nominal)

Comments Interference with two integral 11548-WMKS-attachments 0103A2-4 / ASME Spec. prohibited full 30-SHP-122

/ A672 N75 30" 0.432" 80.8% (MT) surface 4a1 1-22BC I CS.81 I examination I Main Steam NRI I Part of High Energy AUG Program Drawing I Line# / ID Weld Item Pipe Pipe Thickness Material Dia. System (Nominal) 11548-WM KS-0118A1 I ASME Spec. 3-WAPD-110 I SA106 Gr. B 3" 0.300" 0-17 I C5.61 Auxiliary Feedwater 11548-WMKS-0118A1 I 6-WAPD-101 I ASME Spec. 6" 0.432" 0-02A I C5.51 SA106 Gr. B Auxiliary Feedwater 11548-WMKS-0118A2 / 3-WAPD-109

/ ASME Spec. 3" 0.300" 0-108 / C5.61 SA106 Gr. B Auxiliary Feedwater 11548-WMKS-0118A2 / 3-WAPD-110 I ASME Spec. 3" 0.300" 0-109 / C5.61 SA106 Gr. B Auxiliary Feedwater

5. Burden Caused by Compliance Coverage Achieved 40.17% (UT) Best Effort Not Applicable 88.6% (UT) Best Effort Not Applicable 66.7% (UT) Best Effort Not Applicable 65.2% (UT) Best Effort Not Applicable Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 3 of 9 Limitation I Results I Fig. Comments UT-valve to elbow I geometric Indication, dispositioned I 4a2 CC N-663 applied, no surface exam required UT-pipe to flange INRI I CC N-663 4a3 applied, no surface exam required UT-pipe to tee INRI I CC N-663 4a4 applied, no surface exam required UT-tee to pipe INRI I CC N-663 4a5 applied, no surface exam required Compliance with the Code requirements would require extensive modification or replacement of components with a design that would allow full examination from both sides of the weld. This option to rebuild components is considered impractical and could impact plant equipment in a detrimental manner. 6. Proposed Alternative and Basis for Use The subject welds received a volumetric or surface examination to the maximum

• extent practical utilizing the best available techniques at the time the examination was performed.

Additionally, these components are monitored for through wall Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 4 of 9 leakage either by the ASME Section XI System Pressure Test Program required by Section XI, Table IWC-2500-1 Category C-H, for Class 2 components or a visual examination performed weekly as required by the Surry Augmented Inspection Program for high energy lines. None of the pipe or weld material is constructed with Alloy 600/82/182 materials; therefore, there are no primary water stress corrosion cracking (PWSCC) concerns.

There are no known through-wall failures on these welds at SPS2. Any indications were recorded and dispositioned as geometric or construction related. Based on the volumetric and area coverage that was obtained with acceptable results and the visual examinations routinely performed to detect through-wall leakage, it is reasonable to conclude that service induced degradation would be detected.

Therefore, these proposed alternatives provide an acceptable level of quality and safety by providing reasonable assurance of structural integrity of the subject welds. Accordingly, Dominion requests relief in accordance with 10 CFR 50.55a(g)(5)(iii).

7. Duration of Proposed Alternative This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for SPS2, which began May 10, 2004 and ended on May 9, 2015.

Supplemental Report Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 5 of 9 LMT-CS01 Ffg4a1 No.: __ M_T-_OG_-_oo_G_

Stimm<try No.; Si.CS.81.010 Examiner:

_B_ro_w_n-,Ki-w

........

........

.. . II Examiner:

NJA Love!: NIA Site Re11tcw; Dennis-P. Strl()klami other: ru.A.

l.-0ve1:*

NIA ANll Ravl.a-11; Coo'imenls:

Two integral atttlchmerris are limitations for weld 1 *22BC. .skotch bcloY1) Each attachment covars 2"' or !howetd causing a. limitation.

Tho cireumforance length of tho wotd Js 20.a 1 ** Tttt: pGircontago of tho wo!? ttmt wt!S examined ls H Mdllional

• Suorl'alnartllll

!'1\MrL'I Supplemental Report Summary ' EX!'Utllne.t' LDSIGP; Rbbn.rt M "l;}u µ,.AA: Level:: 'U-Plll Examln01:

NIA Leve!: NIA LO'>'m: NIA WELD0-17 C.u/ ccw tW aw Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 6 of 9 LMT-CSIJ1 Fig4a2 cf1 Rept1;! No.: UT*OG-t3a Pogo: ."'.2'-J ot 3. -lt:(t:_ rt*e'-f>t::. Prl.. .. it I 1<> IJP$1 A:-£-Oi '% Ofi5t e1Rl-OP51 c.1Rc-e>"'/11 i>H;S'( CiR.C.'" IOD°lo b l\J$f C. l 11.C. ., l !) 0 '7 0 1. t\ t %

ttft>

Weld Nu m b e r Th i>C kne ss 0-02A 0.435" 2 02A---1 1 E TO 0 Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 7 of 9 Report No: l)

• 4*0 1 9 S um mary# $2.CS.5 1.132 Pg. 4 o f 4 Pre p ared b y: w. T t 1 omas Da t e: 4/2 4/20 14 W eld Widt h We ld L ength 1 2 !FLOW 0.8" 2: 0.as" u.rr-eso F i g 4 a l page 1c'1 rl h T EI U S S I OE E X.AM V QlJr..IE *.C84-SQ IN. X 2!L BS 1.E NGfH* 1 . .95 CUl!l lC IN C HES NO EXM.I f!(Jll JJ7 SQ IN.X 2"Ul"1f T.l\T I O>I -0.1'1 C C , s LI'S, I LJ E J\Xlf\LU I RECTION x 11Xl =n i>'t.AX DIRE C'l'Clti \JS S IVE

• AJl<NGE _________

l<!O E V-0 l u m e Dim e nsions-He[gh t 0.1 45" Le ngt h 20.85" Wld t h 1.3'1 Coverage Summary I R e quire-cl Sca rt s (e ach has a w e i ghing factor Qf 1 00 for complete c overage) ANGlf .,.. .. -* .. UpSt-Ax UpSt*Circ D11S t--Ax DnSt-Cltt 45/60 92.8% 100% 10 0% 61.7% Code Coverage To ta l I 88 1 63 l OOt 100+92..&+Ul.7:;354.S/ 4=:88..6 "'Best Effort C ov erage (Max 25%) T ota l I N/A Notes: .t Code Co vera g re e r to lite m xlmu pen:entagc o f th e required eic;am i nation \*olume tha t Is effec;t lll'e tv exam ned with tlt q u <i l ifrttd C!Xa m i n ation p r oa?dure. 2) Best effo-rt tt!fots to t+.e requl-red vo l vme 1 Pi'$t thewe t d oer:iter l l n.-e th at Is t1 c.:i 1ml ne tJ }n e a xi al beam dlre ctlion *\11th <1n Appe.nd lxVIU demonst;rateo1 l:xarniner:

NJA. Lwet: . tf!A Other: NIA Level: tf/A Sketeh <<Photo: 1!<t/I( 't:1 II* I WELD 0-108 ti t;q.g ... WNK5'-6J J

... 1MA--lr;i8 j l.C. 5' __ (.,,/, 0319 /0 -1.,.7 ... ()(,, Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 8 of 9 U.IT-CSQ1 F!Q4a4 paga1cf1 R0;Jort No.: Ul'.CJiM:lT7 . !>P,,ae: 2 of 2 DD tu: ..,....-'---

Date: . 11/t1/pr...

l:mte: *!!£:id 7tJ .. CU) 3?f. (C.tJ) -+--Jo---+"-+

JJow11ri1u:ilm

_ _,____.__{.""-'."""t-f'IPG

Report Commehls:

WELD 0-109 Serial No.16-146 Docket No. 50-281 Relief Request LMT-CS01 Attachment 3; Page 9 of 9 LMT..iCSD1 fig4a5 pager cf 1 P;igo: 2:-t>f 2 0 .NJ<" ttfJJf<1 ate: Fl"* .. IT Date: JJ/.J!!fo

f. Dat'!ir l.aAt! U.f/f!'1M*llt!

.--

/31!.$1" flA,;1/t?ll-Tlalf

---

t1ff

...

... a11 s.:t. cs,. '11. f t!W' _.......Jf----t-t!tW uFS.rR.!JAit(

'.C-0 . .._ . ..1--......i.---....t:-'

'-t--

Attachment 4 RELIEF REQUEST LMT-P01 EXAMINATION CATEGORY C-F-1 AND R-A PRESERVICE WELD EXAMINATIONS Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Dominion Surry Power Station Unit 2 4th 10-Year Interval May 10, 2004 -May 9, 2015 Preservice Pipe Welds Relief Request# LMT-P01 Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 1 of 8 Repetitive/Duplicate Relief Requests in Accordance with 10 CFR 50.55 a(g)(5)(iii) lnservice Inspection Impracticality

1. ASME Code Components Affected ASME Code Class: Examination Category:

Item Numbers: Component Identification:

Material:

Code Class 2 C-F-1, Pressure Retaining Welds in Austenitic Stainless Steel or High Alloy Piping R-A, Risk Informed Piping Examinations C5.21, Circumferential Weld, Piping Welds >1/5 in., Nominal Wall Thickness for Piping NPS 2 and R1 .11, Elements Subject to Thermal Fatigue Refer to Specific Table Refer to Specific Table 2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement Required Method: Surface and Volumetric Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 2 of 8 The alternative requirements of ASME Section XI, Code Case N-460, approved for use in Regulatory Guide 1.147, Rev.17, allows credit for essentially 100% coverage of the weld provided greater than 90% of the required volume has been examined.

10 CFR 50.55a(b)(2)(xv)(A), requires the following examination coverage criteria when applying Supplement 2 to Appendix VIII: (1) Piping must be examined in two axial directions and when examination in the circumferential direction is required, the circumferential examination must be performed in two directions, provided access is available

.... (2) Where examination from both sides is not possible, full coverage credit may be claimed from a single side for ferritic welds. Where examination from both sides is not possible on austenitic welds ... , full coverage credit from a single side may be claimed only after completing a successful single-sided Appendix VI 11 demonstration using flaws on the opposite side of the weld .... 10 CFR 50.55a(b)(2)(xvi)(B) requires that examinations performed from one side of a ferritic or stainless steel pipe weld must be conducted with equipment, procedures, and personnel that have demonstrated proficiency with single-side examinations.

To demonstrate equivalency to two-sided examinations, the demonstration must be performed in accordance with the requirements of Appendix VIII as modified by 10 CFR 50.55a(b)(2)(xvi)(B) and §50.55a(b)(2)(xv)(A).

4. Impracticality of Compliance Pursuant to 10 CFR 50:55a(g)(5)(iii), relief is requested from the volumetric examination coverage requirements for the subject welds due to the physical configuration which limits the volumetric coverage that can be obtained.

For austenitic welds, when the examination area is limited to one side then the examination coverage does not comply with 10 CFR 50.55a(b)(2)(xv)(A) and proficiency demonstrations do not comply with 10 CFR 50.55a(b)(2)(xvi)(B);

full coverage credit may not be claimed. There are currently no Performance Demonstration Initiative (POI) qualified single-side examination procedures that demonstrate equivalency to two-sided examination procedures on austenitic piping welds. Current technology is not capable of reliably detecting or sizing flaws on the far side of an austenitic weld for configurations common to U.S. nuclear applications.

However, POI Performance Demonstration Qualification Summary (PDQS) certificates for austenitic piping list the limitation that single-side examination is performed on a best effort basis. The best effort qualification is provided in place of Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 3 of 8 a complete single-side qualification to demonstrate that the examiners' qualification and the subsequent weld examination is based on application of the best available technology.

The subject welds were examined with a manual ultrasonic (UT) technique using pulse echo UT instruments ahd search units to achieve the maximum examination coverage practical.

Examinations were performed using personnel, equipment and procedures qualified in accordance with ASME Section XI, Appendix VIII as implemented by the Performance Demonstration Initiative (POI). No alternative welds were considered since these are preservice examinations for each specific weld that was reconstructed.

Weld2-08C This is a stainless steel ASME Section XI, Category C-F-1 weld. This weld also received a final liquid penetrant (surface) examination and a radiography (volumetric) examination before return to service. No indications were discovered during any of the examinations performed.

Weld 2-098 This is a stainless steel ASME Section XI, Category C-F-1. weld. This weld also received a final liquid penetrant (surface) examination and a radiography (volumetric) examination before return to service. No indications were discovered during any of the examinations performed.

Weld 1-03A This is a stainless steel ASME Section XI, Category R-A, Class 1 weld, which is part of the Risk Informed ISi Program. This weld also received a final liquid penetrant (surface}

examination and a radiography (volumetric) examination before return to service. No indications were discovered during any of the examinations performed.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 4 of 8 TABLE LMT-P01 -Preservice Examinations Drawing I Line#/ ID Pipe Pipe Weld Coverage Limitation I System I Class Material Dia. Thickness Achieved Results I Fig. Category / Item Comments 11548-WMKS-SI-ASME 50% (UT) UT-pipe to valve I 12A/ NRI /*Also 3-Sl-272 / 2-08C Spec. 3" 0.438" 23% (UT received 100% PT 4a1 Safety Injection I 2 I SA312 Best and RT I C-F-1 I C5.21 TP304 Effort) NRI 11548-WMKS-SI-ASME 48% (UT) UT-pipe to valve I 12A I 3-Sl-272 I NRI I Also 2-09B I Spec. 3" 0.438" 19% (UT received 100% PT 4a2 Safety Injection/ 2 / SA312 Best and RT I C-F-1 I C5.21 TP304 Effort) NRI 11548-WMKS-.

ASME 50% (UT) UT-valve to elbow 0127J2 / INRI I 6-Sl-319 / 1-03A I Spec. 6" 0.562" 26% (UT Also received 4a3 Safety Injection/

1 I SA376 Best 100% PT and RT I R-A I R1.11 TP316 Effort) NRI 5. Burden Caused by Compliance Compliance with the Code requirements would require extensive modification or replacement of components with a design that would allow full examination from both sides of the weld. This option to rebuild components is considered impractical and would cause unnecessary radiation exposure.

Furthermore, plant equipment could be impacted in a detrimental manner. 6. Proposed Alternative and Basis for Use The subject welds received a volumetric examination to the maximum extent practical utilizing the best available techniques.

With the incorporation of the POI for Supplement 2, demonstration for best effort coverage was made for single-sided examination from the accessible side of the austenitic welds. Additionally, the components are monitored for through-wall leakage as part of the ASME Section XI System Pressure Test Program and receive visual (VT-2) examination periodically as required by Section XI, IWB-2500-1, Category B-P, every refueling outage for Class 1 components and IWC-2500-1, Category C-H, every period for Class 2 components.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 5 of 8 None of the pipe or weld material is constructed with Alloy 600/82/182 materials; therefore, there are no primary water stress corrosion cracking (PWSCC) concerns.

No indications were found during any of the examinations discussed.

Based on the volumetric coverage that was obtained with acceptable results, the visual (VT-2) examinations performed routinely and the additional examinations for surface (liquid penetrant) and volumetric (radiography) exams, it is reasonable to conclude that no flaws exist in the new welds. These proposed alternatives provide an acceptable level of quality and safety by providing reasonable assurance of structural integrity of the subject welds. Accordingly, Dominion requests relief in accordance with 10 CFR 50.55a(g)(5)(iii).

7. Duration of Proposed Alternative This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for Surry Power Station Unit 2, which began May 10, 2004 and ended May 9, 2015.

Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 6 of 8 Report No. Summary No. Pg. 6 of. 6 UT-11*001 S2. C5.21 .348 Prepared By: Date: TRAVIS THOMAS 41'26/2011 Weld Number Weld Thlck11ess I .2..0SC *' l .... ..; ..

I ' I ' I 3 2 t.b<u.iunvfa l.I A;'iJ 3J ,ua 4} ,!ii{)

fl.CW 4--Weld Length Weld Width l CTAL EXMUiAT!<N MCA ... u $'l\JAAF.1Jl.i:H'::S 11" .75" e6T EFFCffiTGJ>.XJALOCJEu, 1t OCUI>.!£ KH:S ll:r.>ES ll1tl ll1l<>>3.9?X 11DuE<Z)I.

j:JC""'

Examination Volume .Dimenslons

-Halgllt .146"

• Length 11" VVi'dth *t.2.S" Coveraae Summary Required Scans (each has a weighing fa.otor of 100 for complete ccnerage)

Angle Up:St-Clrc DnSt-Ax Dfl-St-Ci.rc 45/70 100% 0% 45160 100% 0% 70 Bestaffort 23% Code Coverage Total I

-Best Effort Coverage {Max25%} Total 23% 1 Notes: 1) Code Coverage refers to the maximum percentage cf the required examination volume that is effecti*1e1y examined with lhe qua1lfled exam1natlon pmcedure.

2) Best Effort Covarage raters to tile required examination VOiume past tile weld centerline thaUs examlned In the axial beam direction wilti an Appendix:

VI If demonstrated pn:icedum for singFe sided covera90.

LMT-POt Fig4at page 1 nf !

Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 7 of 8 Report No. Summary No. Pg. 4 of. 4 UT-11-0B.2 s:tC5:21.349 Prepared By: Date: TR.AVIS THOMAS !rf612011 Weld Numbar Wohl 2-096 .438" Wekl Length Weld Width 11.25"

.. *************************

.. ****************************************************************************-,*--.

• ' 1)A't'r :;i)A>'W 3).400'"'

4).£..."lJ' 9):?9'.;x.<<;:.x;

.. , -""'0<X; 2

<-.ICE.NOT AOi!EVf!t),,1%

l,ISAXJAL, !;!Pe-!il:l%

VOLlNE fil<AMNED SSSTEFFOftT tN. l'.OTAl.RSlUlreDDSAXIALS!CE.

• 0.12$0. IN OB/0.12= 7.5X 1ill=15'A'.

il'.':..'H\$

OOO/ ll12."' .2>X 'IW= 21:4 TOTAL EXAMINA 110N AREA= 2.2 SQUARE INCHES Examination Volume DfmenslCf1s Height _Y!L._ Length 11.25" Width A,ngle 45170 45160 70 B ST EF ORT= 19% Notes: Code Coverage Total Best Effort Coverage (Max: 25%} Total 1) Code Coverage refers to the maximum percentage of the required examination volume that Is effeci:i'lety examined with the qualified examination prcceuure.

2) Best Effbrt Coverage refers to tile roqu1reel examination volume past the weld cenwrtlne:

that ls examined hi the axial beam direciion with an Appendix VIII demonstrated rocedure for sin le sided covera e .. *1.3" 48% 1.9% LMT-Pi!t Fig4a2 page t of1 Supplemental Report SummaryNo.:

S2.Rt.H.92G Exomfnar:

Sistek, Robert P Level: U-POI Serial No.16-146 Docket No. 50-281 Relief Request LMT-P01 Attachment 4; Page 8 of 8 LMT-?01 Fig4a3 Rspc;:rt No,: UT*0&-156 Page: :;\ -Of 2 Date: i=.ltrnnlner.

NA Lovel: Situ Date: . Level: __ ANH Other: t\!'A

• Wald Number \ 'C ii fi We!d Thickroes's 0.6> .!.. ' Weld t,, V.

• Flow -----E:{)

Code Coverage Total __

(5-0%

Best Effort Coverage Total lb o/a * (50% max)

Attachment 5 Serial No.16-146 Docket No. 50-281 RELIEF REQUEST LMT-C01 EXAMINATION CATEGORY 8-8 PRESSURIZER SHELL-TO-HEAD CIRCUMFERENTIAL AND LONGITUDINAL WELDS Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Dominion Surry Power Station Unit 2 4th 10-Year Interval May 10, 2004 -May 9, 2015 Serial No.16-146 Docket No. 50-281 Relief Request LMT-C01 Attachment 5; Page 1 of 8 Pressurizer Shell-to-Head Circumferential and Longitudinal Welds Relief Request LMT-C01 In Accordance with 10 CFR 50.55 a(g)(5)(iii)

1. ASME Code Components Affected Weld No.: Drawing: ASME Class: ASME Category:

ASME Item:

Description:

Weld No.: Drawing: ASME Class: ASME Category:

ASME Item:

Description:

1-07 11548-WMKS-RC-E-2 Code Class 1 8-B 82.11 Pressurizer Shell to Head Circumferential Weld 1-02 11548-WMKS-RC-E-2 Code Class 1 8-8 82.12 Pressurizer Longitudinal Shell Weld 2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI

3. Applicable Code Requirement Serial No.16-146 Docket No. 50-281 Relief Request LMT-C01 Attachment 5; Page 2 of 8 The 1998 Edition with 2000 Addenda of ASME Section XI, Table IW8-2500-1, examination Category 8-8, Item 82.11, requires volumetric examination of essentially 100% of the circumferential shell to head welds. Table IWB-2500-1, Category 8-8, Item 82.12, of the 1998 Edition with 2000 Addenda requires volumetric examination of one foot of the longitudinal weld that intersects the selected circumferential shell to head weld. 4. Impracticality of Compliance The pressurizer is covered with an insulation support ring (Figure 1 ). The insulation support ring is 6 inches wide where examination interference is encountered for weld 1-07. As seen in Figure 1, this insulation support ring and a power operated relief valve support prevent complete volumetric coverage of both the upper circumferential head weld arid the intersecting longitudinal weld 1-02. 5. Burden Caused by Compliance Total removal of the support ring at the mechanical connections is considered impractical due to the extremely high dose rates in the pressurizer area. Total radiation dose to perform removal of the inte.rfering support and to perform the examination was estimated to be 13.9 man-rem. This includes expended dose necessary for various crafts including mechanical maintenance, insulators, rigging crews, and the Non-destructive Examination (NOE) workers. Partial removal of the support ring could allow some increased coverage; however, the actual increase would be very small in relation to the entire weld length. This is not a viable effort when considering consequential disturbance of interconnected cross supports and the welded connections to safety and power operation relief valve supports.

Any removal of the mechanical connections or forced spreading apart of components would create a risk of misalignment and possibly warp the structure.

Furthermore, civil engineering proposed that cutting the support could be necessary for removal; thus, destroying the support ring. 6. Proposed Alternative and Basis for Use Examination of pressurizer shell welds 1-07 and 1-02 was performed during the third inservice inspection interval; as documented in Dominion letter dated March 18, 1994 (Serial No.94-006) and approved by NRC letter dated August 30, 1995. The previous obstructions (details shown in Fig. 4) were verified during performance of the fourth interval examinations for welds 1-07 and 1-02. Documentation of the Serial No.16-146 Docket No. 50-281 Relief Request LMT-C01 Attachment 5; Page 3 of 8 fourth interval examinations are shown in Fig. 2 and 3. The total coverage reported for the fourth interval is as follows: Weld 1-02 50% Weld 1-07 82% No additional ultrasonic examination techniques would provide meaningful additional data on this cladded material for the examination volume not attained.

The pressurizer receives a visual (VT-2) examination every refueling outage as required by Section XI, Table IWB-2500-1, Category B-P, for Class 1 components.

Any effort to achieve greater coverage would be impractical creating risk for component damage or destruction and excessive personnel dose. It is proposed that the percentage coverage obtained be considered as meeting Code requirements.

7. Duration of Proposed Alternative This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for Surry Power Station Unit 2, which began May 10, 2004 and ended on May 9, 2015.

14N!R Exam:inatkm rnterterence Lllustration

'llfeld 1-02 Behind Support Unit 2 Pressurizer Insulation Support Frame Serial No.16-146 Docket No. 50-281 Relief Request LMT-C01 Attachment 5; Page 4 of 8 LMT;.c-01 Fig1 page1of2 Ring Cormedian Weld1-02 / lns'llfatlon Supped Ring PORV Support SECTION A-A Weld lnspeclion Area \..... .lnsulaOOJ!

Support Ring Pressurizer ShE!l Serial No.16-146 Docket No. 50-281 Relief Request LMT-C01 Attachment 5; Page 5 of 8 u.rr .. au fig t page2rof2 UT Vessel Examination SltcJUnU:

$uny f P:ooadure;

__ _*N_D_E_*_U_T._7_oz

__ Outage No .. : ....... .._s_2,_R_2s

__ Praoedl.lfe Rev.: 4 Summery t\lo.: ___ s_.z._a_2.._.1_.i._0_0_1

__ _ Report No.; UT*14-093 Wotl;scope:

!St Paga; 1 cl 1 C<:>de: Cat./Jtem:

___ ___;;B...;*aJ_a_2._12_.

---

PZR.47 Drtll'iin9 ,Ni:>.: Oei;cription:

LONGITUDINAL SHELL WELD Systr:rn 10: RC

......

Sizefi.ength:

3.S"/12

ThlcknesslD!ameter 4.315" f 92" Refer to U.TRNO Dmf SlartTime:

2149 ------Exenilnation Surface: Inside CJ Qutskle Wo Location:

___ w ... 'O""l""'cl'"'C""c"'n:.:.:to""r-"t""ln"'o.__

__ couptant:

Sena! No.: ____ .4 ... o3 ... o""s"'oe>

... s""5""1. __ _ Surftice Temp.: __ 1_1 __ °F Get Report No.:

... al.._*1._4'-01.._*

....... 7._CA .... .,..L.,.*.._14._ .

Angle Us.ed us 0 45 45.I 6(1 111dica!lort(s);

Yes D Comments:

141A NIA CWi;fj Examined 50% due to ballyl:iaml

• . AU araa.s Wlltc scanned tci the extent possible, with ttieO", 45*, and G{I transtlueem.

Reautts: NRI !i'.] RIO Geom[] No l\llA 8aminer lwol D*f'Oi re Date Hacller, Joilatllon 51612614 Yes .. CCW2j Finish Time: 2414 Batch No.:

.... o __ Examiner L;;;irel ll*POl Dale Harm<>11, 6yrori H 51612.014

'* 1il Olhc<t L.evei NIA

'! :n NIA a.a o IJT Ve!i:f)tl UT Vessel Examination

$1t<llllJrtit:

Swry I Procuduru:

ER-AA-NDE-UT-702 Outago No.: __ S2_*._.R_Z_6

__ Slllnmary No.: St.a2. n.002 Repor1 No.: UT*14.fl92

---

Pti>;:;cdure RIYI'.: . 4 W or lw cope: 1$1 Work Order No.; 381033'T9811/NOER14-049 Page: of 1 Cat.lltem:

B*BIB2:f1 Location:

PZR47 Dramng No.: DescripUoo:

CIRC SHELL TO HEAD WELD Systom IO; RC Component

!O: H54S*Wf111KS.RC*Ei*2r1*07 Sizell.englh:

3.5"1290.25" Limitations:

S!M Time: 2149 Finish Time: 2414 ----------Examination Surfao;:e:

Inside 0 Surface Condition;

--=G..,.r

... au""n""d::..Fl=-=u.:;;.sh...._

___________________

_ Lo Location:

2'.el'o Datum Point Wo Location:

___

__ Couplar.t:

Soundsafq Te:mp. Tool Mfg_: __ ...;;S:;.:EA=LE=o'""u

... 111 .. rr ....... __ Serial t-fo.; ____ 40"""'3"'09._0,,.,0S=t:ii..._

__ _ ----'7'-'1'--_

.. F Ca.I. Repi:wt tofu.: . .A!lgle Usoli Scanning dB Jndication(s);

Yes O Comments:

60 OOT WI\ CW2] CCWl!2J Batch No.; ___ _..t2 ... 1.,.2..,.0

__ P:ruvi6U1l

¢bi>ifUCtl¢11$

Ut.Uft'!!)

this examirnitiQn.

All areas Wlml examiMd to th!? eXl91'1t possible With 0°, 45" and 60" trarniducers, accumulating to aprox. 82%. 100% {;Ji <:ircumfa:ronti:al he@d weld waa eic.aminend.

NRI !ill Percent OI Co><era9e Ob!ained > $0%: Level I.I-POI Hacker, Jonathon Examiner Level ll*POI Harmon, Bynm H Other Lovet NfA UT Vessel Eiraniiil!i:ioo RJ 0 Geom O No re

'll' DMUI 11548-\JMKS--RC-E-2 PRESSURI?ER HEAD 275,4

• wELD 1-02 TD SHELL & 1-07

• o* IlATtJH -2:34.3' I ' l' i:-:l.!I' Mil) 2-6.5' flMI! rm: Cf" "'t1.ll ll' FRO!'! COlTERl.lNE W VtLlJ 1/40 SCALE RT3397A 21H.9' 164.8' 126.3' -BS.5" r-f--55,5'::] I [

l--

Attachment 6 RELIEF REQUEST LMT-C02 EXAMINATION CATEGORY 8-D PRESSURIZER NOZZLE INNER RADIUS SECTION Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Dominion Surry Power Station Unit 2 4th 10-Year Interval May 10, 2004 -May 9, 2015 Serial No.16-146 Docket No. 50-281 Relief Request LMT-C02 Attachment 6; Page 1 of 5 Pressurizer Nozzle Inner Radius Section Relief Request LMT-C02 In Accordance with 10 CFR 50.55a(g)(5)(iii)

1. ASME Code Components Affected Mark No.: Drawing: ASME Class: ASME Category:

ASME Item:

Description:

14NIR 11548-WMKS-RC-E-2 Code Class 1 8-D 83.110 Pressurizer Shell to Head Circumferential Weld 2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement The 1998 Edition with 2000 Addenda of ASME Section XI, Table IW8-2500-1, deleted the requirement to examine the nozzle inner radius (NIR) sections.

ASME item 83.110 actually addresses the pressurizer nozzle-to-vessel welds. The NI Rs are not welds. This item number assignment was used as it has the closest description for the pressurizer NI Rs in the 2000 Addenda of Section XI. 10 CFR 50.55a(2)(xxi) places a condition on the requirements of ASME Section XI, Table IW8-2500-1, Examination Category 8-D. The condition mandates that the 1998 Edition of ASME Section XI be used, which requires examination of the Serial No.16-146 Docket No. 50-281 Relief Request LMT-C02 Attachment 6; Page 2 of 5 Class 1 NIRs by Items 83.120 and 83.140. Either an ultrasonic or enhanced visual examination shall be performed.

4. Impracticality of Compliance The pressurizer is covered with an insulation support ring as indicated in Figure 1, page 2. As can be seen in the figure, the support ring interferes with completion of a full volumetric examination around the circumference of the 14NIR. 5. Burden Caused by Compliance Total removal of the support ring at the mechanical connections is considered impractical due to the extreme high dose rates in the pressurizer area. Furthermore, this is not a viable effort when considering consequential disturbance of interconnected cross supports and the welded connections to safety and power operation relief valve supports.

Any removal *of the mechanical connections or forced spreading apart of components would create a risk of misalignment and possibly warp the structure.

Civil engineering proposed that cutting the support could be necessary for removal; thus, destroying the support ring. 6. Proposed Alternative and Basis for Use The five remaining pressurizer NI Rs, 1 ONIR, 11 NIR, 12NIR, 13NIR and 15NIR, were examined during the fourth interval with no recordable indications.

15NIR on the pressurizer surge nozzle is addressed by NRC approved relief request CMP-001 Rev. 1. (Reference NRC letter and included Safety Evaluation Report dated June 5, 2007). Examination requirements are covered by the Class 1 system pressure test performed every refueling outage. NI Rs 10, 11, 12 and 13 were volumetrically examined meeting code coverage requirements.

The six pressurizer NIRs receive a visual (VT-2) examination every refueling outage as required by ASME Section XI, Table IWB-2500-1, Category B-P, for Class 1 components.

Any effort to achieve greater volumetric coverage on 14NIR would be impractical and would create the risk of component damage or destruction as well as excessive personnel dose. . It is proposed that the percentage coverage obtained be considered acceptable for meeting the Code requirements.

7. Duration of Proposed Alternative Serial No.16-146 Docket No. 50-281 Relief Request LMT-C02 Attachment 6; Page 3 of 5 This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for Surry Power Station Unit 2, which began May 10, 2004 and ended on May 9, 2015.

Sum mary No.: S2.B3.110.0 05 Ei.:ll.mintlr. Nel$0t\, l(l rkhand Examir.er:

_N ... IA...._ ___________ Oth er:

______ ...,,.. ______ _ 65 D'EG +!* J,4 SCAN L IMITAT I ON S etcll o r Pho to: TOTAL REQIJ I RED SCAN ,Altl!A = 53S.6 SQ , I N TO TAL AREA OF LI MITATION "' 106 SQ , IN S 3 S.5* l06 = 429.6 / 535.6 = 0.80 >i 100 =Bo% A.ddiliWW

• Suppl em en tal Reports Supplemental Report Re port No.: Page: Leve l: 11 *PDI L9111!!l: NIA Si le R e view; L filVe l: N I A .AN ll Re view:

I L_J_'L..511.i D UT-14-096 2 of 2 Dale; Oate: 5:' / ;t..,. ::u f Dav.;; f" L!7 II¥

• 1 ,;

14N!R Examination Interference tllusirafon Weld 1-02 Behind Support Serial No.16-146 Docket No. 50-281 Relief Request LMT-C02 Attachment 6; Page 5 of 5 Un[t 2 Pressurizer Insulation Support Frame LMT-CD2 Flg 1 page2Df2 lnsulati'on Support Frame Insulation Support Ri119s . { \..... l Ririig Connection Welded {Typical)

Attachment 7 RELIEF REQUEST LMT-C03 EXAMINATION CATEGORY C-C MAIN STEAM INTEGRAL ATTACHMENT H001-1 Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281

1. 2. Dominion Surry Power Station Unit 2 4th 10-Year Interval May 10, 2004 -May 9, 2015 Serial No.16-146 Docket No. 50-281 Relief Request LMT-C03 Attachment 7; Page 1 of 5 Main Steam Integral Attachment H001-1 Relief Request LMT-C03 In Accordance with 10 CFR 50.55a(g)(5)(iii)

ASME Code Components Affected Weld No.: H001-1 Drawing: 11548-WMKS-01 OOD1 ASME Class: Code Class 2 ASME Category:

C-C ASME Item: C3.20

Description:

Integral Attachment Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement ASME Section XI, Examination Category C-C, Item C3.20, requires surface examination on 100% of the weld area selected for examination.

The alternative requirements of ASME Section XI, Code Case N-460, approved for use in Regulatory Guide 1.147, Rev. 17, allows credit for essentially 100% coverage of the weld provided greater than 90% of the required volume or area has been examined.

4. Impracticality of Compliance Pursuant to 10 CFR 50.55a(g)(5)(iii), relief is requested from the essentially 100% examination area coverage requirement of the subject welds due to the geometric configuration and obstructions which limit the surface examination coverage.

Serial No ..16-146 Docket No. 50-281 Relief Request LMT-C03 Attachment 7; Page 2 of 5 This integral attachment is part of a spring can support system. The rod seen in the attached typical figures, including the photograph in Fig 3, extends to a spring can above the main steam pipe. Due to interference with the support rod and the narrow opening of the integral attachment, examination of the interior welds is limited. 100% coverage was achieved for the welds on the outside of the integral attachment for a total of 39 linear inches. The inside bottom 4 inches and two 11-inch side welds could not be reached to perform a successful surface examination. nine inches of the total 65 linear inches were examined for examination coverage of 60%. 5. Burden Caused by Compliance . . . The purpose of nondestructive examination (NOE) is to perform inspections without destroying the component.

Disassembly of a component

• solely to perform a Section XI examination is not a requirement.

Any attempt to achieve greater coverage on the interior welds of this integral attachment would require disassembly of the spring can hanger and rod, which would require seismic support analysis and most likely mandate a temporary support system installation for the 30" main steam line while this support was rendered inoperable.

Even if the support were disassembled, it is improbable that a meaningful surface examination could be achieved due to the physical constraints of the narrow opening. 6. Proposed Alternative and Basis for Use This component receives periodic visual (VT-2) examinations in accordance with Category C-H, which should detect any through-wall leakage in the ina_ccessible areas. It is proposed that the percentage of surface coverage obtained with no recordable indications, in addition to the periodic visual examinations, be considered as meeting Code requirements.

7. Duration of Proposed Alternative This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for Surry Power Station Unit 2, which began May 10, 2004 and ended on May 9, 2015.

Supplemental Report S\Jr'l'I Mitiit Y N¢.: ..... s2 ...... C._3....,.20.._._oo

.... Serial No.16-146 Docket No. 50-281 Relief Request LMT-C03 Attachment 7; Page 3 of 5 u.rr-cro f i g: l page 1 of RGJ:Xl it o.: _u_r_-oo_._-o_oa_ r> g&; 2 Of 2 N/}-flre.min:i;ir:

C u 1Taoo, J eff rex T Le*1C!I: II Rev1e¥1er.

......,..7:11'-f" .. .. *-.... _ ... ,,i/) ___ _ E:JQ\miner::

_N/.;..A_* --------Le vel: . t4/A Ste Review: -. Da te: D.*.U. *l*e:* _* __ Othl!I!: .NIA Level: NIA ANl l Review: : ? Com1noots:

60 %Colf0lago Obtatne<l ( TQtal We rd Length 65 *Total Length Examined 39") See Pholo Below. (Nor.

J(' R1}lhr s __

• _1d_t£ Ii L{FT t./ f>o 1/aM (iNS i Df) Ske t ch or Photo: Typrcal ct th i s Integral .Atlac'hment f.fltPJ iNEO 13..S I ( h1 Lii.FT .S, 1 dii:

• , POWEA INDUST>>Y GltOOP l!l Y OAT£ p PLAN Serial No.16-146 Docket No. 50-281 Relief Request LMT-C03 Attachment 7; Page 4 of 5 LMT-003 F'{l.2 page* 1 al 1 fM.Q£0 *. Fe'<s f STRV ,C T. arEt<I.. AS P£1(. 1154.8"! F$

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• 202A Serial No.16-146 Docket No. 50-281 Rel i ef Request LMT-C03 Attachment 7; Page 5 of 5 Typ i cal o f Mai n Steam Ha n ger Attachment H001-1 and HD01-2 LMT-COS fig 3 1cX1 Attachment 8 RELIEF REQUEST LMT-C04 EXAMINATION CATEGORY C-C MAIN STEAM INTEGRAL ATTACHMENT H001-2 Virginia Electric and Power Company (Dominion)

Surry Power Station Unit 2 Serial No.16-146 Docket No. 50-281 Dominion Surry Power Station Unit 2 4th 10-Year Interval May 10, 2004 -May 9, 2015 Serial No.16-146 Docket No. 50-281 Relief Request LMT-C04 Attachment 8; Page 1 of 5 Main Steam Integral Attachment H001-2 Relief Request LMT-C04 In Accordance with 10 CFR 50.55 a(g)(5)(iii)

1. ASME Code Components Affected Weld No.: Drawing: ASME Class: ASME Category: ASME Item: Descript i on: H001-2 11548-WMKS-01 OOD1 Code Class 2 C-C C3.20 Integral Attachment

2. Applicable Code Edition and Addenda 1998 Edition with 2000 Addenda of ASME Section XI 3. Applicable Code Requirement ASME Section XI , Examination Category C-C, Item C3.20, requires surface examination on 100% of the weld area selected for examination. The alternative r equirements of ASME Section XI, Code Case N-460, approved for use in Regulatory Guide 1.147 , Rev. 17 , allows credit for essentially 100% coverage of the weld provided greater than 90% of the required volume or area has been examined.

4. Impracticality of Compliance Pursuant to 10 CFR 50.55a(g)(5)(iii), relief is requested from the essentially 100% examination area coverage requirement of the subject welds due to the geometric configuration and obstructions which limit the surface examination coverage. This integra l attachment i s part of a spring can support system. The rod seen i n the attached typical figures , including the photograph in Fig. 3 , extends to a spring can Serial No.16-146 Docket No. 50-281 Relief Request LMT-C04 Attachment 8; Page 2 of 5 above the main steam pipe. Due to interference with the support rod and the narrow opening of the integral attachment, examination of the interior welds is limited. 100% coverage was achieved for the welds on the outside of the integral attachment for a total of 39 linear inches. The inside bottom 4 inches and two 11-inch side welds could not be reached to perform a successful surface examination. nine inches of the total 65 linear inches were examined for examination coverage of 60%. 5. Burden Caused by Compliance The purpose of nondestructive examination (NOE) is to perform inspections without destroying the component.

Disassembly of a component solely to perform a Section XI examination is not a requirement.

Any attempt to achieve greater coverage on the interior welds of this integral attachment would require disassembly of the spring can hanger and rod which would require seismic support analysis and most likely mandate a temporary support system installation for the 30" main steam line while this support was rendered inoperable.

Even if the support were disassembled it is improbable that a meaningful surface examination could be achieved due to the physical constraints of the narrow opening. 6. Proposed Alternative and Basis for Use This component receives periodic visual (VT-2) examinations in accordance with Category C-H, which should detect any through-wall leakage in the inaccessible areas. It is proposed that the percentage of surface coverage obtained with no recordable indications, in addition to the periodic visual examinations, be considered as meeting Code requirements. 7. Duration of Proposed Alternative This proposed alternative is requested to meet requirements for the fourth ten-year inspection interval for Surry Power Station Unit 2, which began May 10, 2004 and ended on May 9, 2015.

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