Text

Response to Request for Additional Information Regarding Steam Generator Inspection Report- Fall 2021 Refueling Outage
	ML22234A133
Person / Time
Site:	Beaver Valley
Issue date:	08/22/2022
From:	Grabnar J; Energy Harbor Nuclear Corp
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	EPID L-2022-LRO-0014, L-22-188
	Download: ML22234A133 (95)
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Beaver Valley Power Station t1arbor P.O. Box4 Shippingport, PA 15077 John J. Grabnar 724-682-5234 Site Vice Preside_nt, Beaver Valley Nuclear August22,2022 L-22-188 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Beaver Valley Power Station, Unit No. 2 Docket No. 50-412, License No. NPF-73 Response to Request for Additional Information Regarding Steam Generator Inspection Report- Fall 2021 Refueling Outage (EPID No. L-2022-LRO-0014)

By letter dated February 10, 2022 (Agencywide Document Access and Management System [ADAMS] Accession No. ML22041B540), Energy Harbor Nuclear Corp.

submitted to the Nuclear Regulatory Commission (NRC) Refueling Outage 22 Generic Letter 95-05 Voltage Based Alternate Repair Criteria Final Report, Revision 1, and the Unit 2 - 2R22 Steam Generator F* (F Star) Report. The reports provided information required by the technical specifications that was obtained during the Fall 2021 refueling outage inspections. By email dated June 24, 2022 (ADAMS Accession No. ML22178A132), the NRC staff requested additional information regarding the reports.

The Energy Harbor Nuclear Corp. response to this request is attached. A Refueling Outage 22 Generic Letter 95-05 Report, Revision 2, is enclosed and incorporates the corrections discussed in the attachment.

There are no regulatory commitments contained in this submittal. If there are any questions or if additional information is required, please contact Mr. Phil H. Lashley, s/412 Manager, Fleet Licensing, at (330) 696-7208.

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John J. Grabnar -so~"-,) <o~~ .....~'2--

I' Beaver Valley Power Station, Unh No.*2 L-22-188 Page 2 of 2

Attachment:

Response to Request for Additional Information

Enclosure:

Beaver Valley Unit 2 Refueling Outage 22 Generic Letter 95-05 Voltage-Based Alternate Repair Criteria Final Report, Revision 2 cc: NRC Region I Administrator NRC Resident Inspector NRC Project Manager Director BRP/DEP Site BRP/DEP Representative

Attachment L-22-188 Response to Request for Additional Information Page 1 of 6 The NRC request for additional information is provided below in bold type followed by the Energy Harbor Nuclear Corp. response.

RAI 1

Clarify the following potential discrepancies in the 2R22 GL [Generic Letter] 95-05 Voltage-Based ARC [Alternate Repair Criteria] Report:

a. Section 2, states, SG[Steam Generator]-C is predicted to be the limiting SG for leakage while SG-A is predicted to be the limiting SG for probability of burst. However, Section 1 and Table 7-2 appear to indicate that SG-C is the limiting SG for leakage and burst probability for Cycle 23. Please confirm which SG is the limiting SG for burst probability for Cycle 23.

Response

The limiting SG for both leakage and burst probability for Cycle 23 is SG-C. It is a typo in Section 2 and has been corrected in Reference 1.

b. Table 3-4 states there are 432 distorted support indications (DSIs) in SG-C and that all 432 DSIs were returned to service. However, the rows for the 0.3, 0.6, and 1.1 voltage bins sum to 92, 46, and 4, respectively, rather than 91, 45, and 3, as indicated in the table. Therefore, the total number of DSIs in SG-C, and the number of DSIs returned to service, is unclear. The staff notes that Tables 3-5, 6-1, and 7-1 also refer to 432 DSIs in SG-C. Please confirm the total number of DSIs in SG-C, the total number of DSIs returned to service in SG-C, and the total DSIs in the 0.3, 0.6, and 1.1 voltage bins.

Response

There are typos in the Not +POINT Probe Tested Column in Table 3-4 for Voltage Bins of 0.3, 0.6 and 1.1 and the +Point Probe Tested But Not Confirmed column is correct. The following changes highlighted in the table below have been made in Reference 1 for SG-C:

Attachment L-22-188 Page 2 of 6 Table 3-4 2R22 DSI Voltage Distribution for SG-C

+POINT Not

+POINT Probe Returned Voltage Number of +POINT Probe Tested Plugged to Bin Indications Probe Confirmed But Not Service Tested Confirmed 0.1 13 0 0 13 0 13 0.2 84 2 1 81 0 84 0.3 91 4 2 85 0 91 0.4 86 6 1 79 0 86 0.5 57 5 0 52 0 57 0.6 45 8 2 35 0 45 0.7 25 4 0 21 0 25 0.8 10 4 0 6 0 10 0.9 7 1 0 6 0 7 1.0 8 0 0 8 0 8 1.1 3 1 2 0 0 3 1.2 1 0 1 0 0 1 1.3 0 0 0 0 0 0 1.4 1 0 1 0 0 1 1.5 1 1 0 0 0 1 Total 432 36 10 386 0 432

c. In Section 6.5, the section title, the first sentence, and the second-to-last sentence refer to EOC [End of Cycle]-22 and BOC [Beginning of Cycle]-22.

Please confirm these instances should be referring to EOC-23 and BOC-23.

Response

In Section 6.5, the section title, the first sentence and the second-to-last sentence should be referring to EOC-23 and BOC-23 instead of EOC-22 and BOC-22. These typos have been corrected in Reference 1.

d. The title of Section 7.2 refers to Cycle 22. Please confirm this section should refer to Cycle 23.

Response

The title of Section 7.2 should refer to Cycle 23 instead of Cycle 22. This typo has been corrected accordingly in Reference 1.

Attachment L-22-188 Page 4 of 6

e. The Note to Table 3-3 states, This includes the 18 tubes in SG-B with DSIs that were deplugged. However, Table A-2 appears to indicate there are 18 DSIs in 14 tubes. Please confirm the number of deplugged tubes in SG-B that have DSIs and confirm the total number of DSIs in those tubes.

Response

The note to Table 3-3 should state, This includes the 18 DSIs in 14 tubes in SG-B that were deplugged. The reason for this discrepancy is that there were two indications in each of the tubes: R17C21, R17C32, R18C25 and R20C27. This discrepancy has been corrected in Reference 1.

RAI 2

Section 3.1 of the 2R22 GL 95-05 Voltage-Based ARC Report states, There were 10 indications confirmed with HAI indications by the +POINT probe on tubes that were deplugged in SG-B. Eddy current analysis code HAI is not defined in the report or the Electric Power Research Institutes Pressurized Water Reactor Steam Generator Examination Guidelines. The staff notes that HAI and HCI are Historical Axial Indication and Historical Circumferential Indication, respectively, from the 2R22 SG 180 Day Report (ML22126A089). However, a discussion of how the HAI and HCI eddy current analysis codes are used was not provided in the 2R22 SG 180 Day Report. The staff also notes that HAI and HCI were not used in the Fall 2018 (ML19087A050) or Spring 2020 (ML20287A37) SG Tube Inspection Reports. Please confirm whether Fall 2021 was the first use of the HAI and HCI eddy current analysis codes and please discuss how these codes are used.

Response

Fall 2021 (Inspection 2R22), was the first use of the HAI and HCI eddy current analysis codes. The HAI and HCI codes were in tubes that were deplugged and sleeved or returned to service with 95-05. These were the historical SAI and SCI calls that caused the tube to be plugged in the first place. The de-plugged tube required inspection after de-plugging for a baseline prior to sleeving and returning the tube back to service. The HAI and HCI (H for historical) calls were to flag the original crack call. Since 2R22 was the first where outage de-plugging was performed, there are no HAI and HCI calls in prior outages.

RAI 3

Section 3.3 of the 2R22 GL 95-05 Voltage-Based ARC Report states the following:

One DSI indication in SG-A had a measured bobbin voltage that exceeded the 1.5 volt criteria. The location that this occurred is at R7C18 02H [tube Row 7, Column 18 at the 2nd tube support plate on

Attachment L-22-188 Page 4 of 6 the hot-leg side]. This was the same location as in 2R21 (Reference 2). In that case the independent qualified data analyst (IQDA) was consulted regarding the condition of the probe that inspected SG-A tube R7C18 and detected the DSI at the 02H support plate. It was confirmed in 2R21 that the probe satisfied the wear limit criteria that would otherwise categorize it as a worn probe.

This section does not appear to address how probe wear was addressed in 2R22 for R7C18 02H. Therefore, please discuss whether the probe was determined to satisfy the wear limit criteria or whether R7C18 02H was re-tested with a new probe in 2R22.

Response

During the 2R22 inspection, the probe used to inspect SGA R7C18 02H was found to satisfy the wear limit criteria and therefore SGA R7C18 02H did not need to be retested.

During the inspection, the probe wear was monitored at the beginning and end of each calibration group. If the probe wear was found to exceed the criteria, the probe would be replaced and any DSI within the calibration group >1.5V would be retested.

The write-up supplied within Reference 1 is rewritten as such:

One DSI indication in SG-A had a measured bobbin voltage that exceeded the 1.5 volt criteria during 2R22. The location that this occurred is at R7C18 02H [tube Row 7, Column 18 at the 2nd tube support plate on the hot-leg side]. The probe used to test this location satisfied the wear limit criteria of GL 95-05 during 2R22. This was the same location as in 2R21 (Reference 2). In that case the independent qualified data analyst (IQDA) was consulted regarding the condition of the probe that inspected SG-A tube R7C18 and detected the DSI at the 02H support plate. It was confirmed in 2R21 and 2R22 that the probe satisfied the wear limit criteria that would otherwise categorize it as a worn probe.

RAI 4

The fifth paragraph of the Discussion section of the 2R22 GL 95-05 Voltage-Based ARC Report states the following:

The projected accident induced leakage from all combined sources (sleeves, plugs, indications left inservice under Generic Letter 95-05 and other degradation within the tube bundle) remains well below the 8.2 gallons per minute (gpm) per SG allowed by the Technical Specifications. It is noted that Unit 2 License Amendment 195 was recently received, which increased this limit from 2.2 gpm to 8.2 gpm.

Attachment L-22-188 Page 5 of 6 However, License Amendment 195 increased the accident induced primary-to-secondary SG tube leakage limit from 2.1 gpm to 8.1 gpm. The staff notes that Section 1 of the 2R22 GL 95-05 Voltage-Based ARC Report refers to 2.2 gpm and 8.1 gpm, and several other sections in the 2R22 GL 95-05 Voltage-Based ARC Report refer to 2.2 gpm. In addition, the staff notes that the Fall 2018 (ML19035A607) and the Spring 2020 (ML20211L853 and ML21026A337) GL 95-05 Voltage-Based ARC and SG F* Reports refer to 2.2 gpm. Please confirm the accident induced primary-to-secondary SG tube leakage limit. In addition, discuss how the use of 2.2 gpm versus 2.1 gpm may have impacted the results of prior reports.

Response

Per license amendment 195, the allowable accident induced primary-to-secondary SG tube leak rate of 8.1 gpm is increased to 8.2 gpm in the faulted SG to account for the 150 gallons per day (gpd) (0.1 gpm) assumed leakage prior to the accident. For all three SGs, the limit is 8.2 gpm for the faulted SG plus 0.1 gpm for each non-faulted SG for a total of 8.4 gpm combined. It is noted that this limit is for leakage from all sources.

The 2.2 gpm leakage limit in the 2R22 95-05 90-day report for the faulted SG derives from the historical allowable 2.1 gpm accident induced leakage criteria plus 150 gpd (0.1 gpm) allowable operational leakage in the faulted SG from all sources. This is conservative compared to the allowable accident induced leakage limit per License Amendment 195. The 2R22 condition monitoring/operational assessment (CMOA) calculated accident induced leak rate of 0.35 gpm was combined with the predicted GL 95-05 leak rate of 0.229 gpm, leading to a total leakage rate of 0.579 gpm. This value is conservatively less than the 8.2 gpm allowable accident induced SG tube leakage limit in the faulted SG from all sources.

For the 2R21 (spring 2020) and 2R20 (fall 2018) GL 95-05 analysis, the maximum allowable accident leakage from all sources was 2.2 gpm in the faulted SG. For these CMOAs, a fully probabilistic methodology was used with axial outside diameter stress corrosion cracking (ODSCC) at the freespan and at scratches/gouges. This calculation predicted a leak rate of 0 gpm. A deterministic methodology was used with the remaining stress corrosion cracking (SCC) mechanisms. All deterministic operational assessments for both inspections satisfied the minimum ligament tearing pressure requirement to satisfy the accident-induced leakage performance criterion (AILPC) at the end-of-cycle condition. Therefore, no leakage was predicted from the deterministic operational assessment approach. Leakage from roll plugs and mechanical sleeves also contributed to the accident induced leak rate but were found to be negligible. Thus, negligible leakage was predicted from the hardware and cracking mechanisms, and the previous GL 95-05 analyses were able to use the full 2.2 gpm allowable accident induced leakage limit. Per the fall 2018 (ML19035A607) and the spring 2020 (ML21026A337) GL 95-05 reports, substantial margin was available based on the

Attachment L-22-188 Page 6 of 6 accident induced leakage analysis. There is no impact to prior reports that used 2.2 gpm for the primary-to-secondary SG accident induced leakage limit.

References:

1. Westinghouse Report, SG-CDMP-21-31, Revision 2, Beaver Valley Unit 2 Refueling Outage 22 Generic Letter 95-05 Voltage-Based Alternate Repair Criteria Final Report, July 2022.

2. Westinghouse Report SG-SGMP-20-15, Revision 3, Beaver Valley Unit 2 Refueling Outage 21 Generic Letter 95-05 Voltage-Based Alternate Repair Criteria Final Report, (ADAMS Accession No. ML21026A337) January 2021.

Enclosure L-22-188 Beaver Valley Unit 2 Refueling Outage 22 Generic Letter 95-05 Voltage-Based Alternate Repair Criteria Final Report, Revision 2 (86 pages follow)

Westinghouse Non-Proprietary Class 3 SG-CDMP-21-31 August 2022 Revision 2 Beaver Valley Unit 2 Refueling Outage 22 Generic Letter 95-05 Voltage-Based Alternate Repair Criteria Final Report

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 iii RECORD OF REVISIONS Revision Date Description 0 January 2022 Original 1 February 2022 All Export Control Statements Removed 2 August 2022 Revised to address Request for Additional Information SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 iv TABLE OF CONTENTS RECORD OF REVISIONS ........................................................................................................... iii TABLE OF CONTENTS............................................................................................................... iv LIST OF TABLES ...........................................................................................................................v LIST OF FIGURES ....................................................................................................................... vi 1 INTRODUCTION ............................................................................................................ 1-1 2

SUMMARY

AND CONCLUSIONS ................................................................................ 2-1 3 2R22 INSPECTION RESULTS AND VOLTAGE GROWTH RATES............................. 3-1 3.1 2R22 Inspection Results ............................................................................................. 3-1 3.2 Voltage Growth Rates ................................................................................................. 3-4 3.3 Probe Wear Criteria..................................................................................................... 3-5 3.4 NDE Uncertainties ...................................................................................................... 3-5 4 DATABASE APPLIED FOR LEAK AND BURST CORRELATIONS ........................... 4-1 4.1 Tube Material Properties ............................................................................................ 4-1 4.2 Burst Correlation ......................................................................................................... 4-1 4.3 Leak Rate Correlation ................................................................................................. 4-1 4.4 Probability of Leak Correlation.................................................................................. 4-1 4.5 NDE Uncertainties ...................................................................................................... 4-1 4.6 Upper Voltage Repair Limit ....................................................................................... 4-1 5 SLB ANALYSIS METHODS........................................................................................... 5-1 6 BOBBIN VOLTAGE DISTRIBUTIONS ......................................................................... 6-1 6.1 Calculation of Voltage Distributions .......................................................................... 6-1 6.2 Probability of Detection.............................................................................................. 6-2 6.3 Limiting Growth Rate Distribution ............................................................................ 6-2 6.4 Cycle Operating Period .............................................................................................. 6-2 6.5 Projected EOC-23 Voltage Distribution..................................................................... 6-2 7 SLB LEAK RATE AND TUBE BURST PROBABILITY ANALYSES ........................... 7-1 7.1 2R22 Condition Monitoring Leak Rate and Tube Burst Probability........................ 7-1 7.2 Cycle 23 Operational Assessment Leak Rate and Tube Burst Probability .............. 7-1 8 REFERENCES ................................................................................................................. 8-1 APPENDIX A ............................................................................................................................. A-1 SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 v LIST OF TABLES Table 3-1 2R22 RPC Examinations due to Bobbin Calls .................................................... 3-3 Table 3-2 2R22 DSI Voltage Distribution for SG-A ............................................................ 3-6 Table 3-3 2R22 DSI Voltage Distribution for SG-B ............................................................ 3-7 Table 3-4 2R22 DSI Voltage Distribution for SG-C ............................................................ 3-8 Table 3-5 Indication Distribution as Function of Tube Support Plate ................................. 3-9 Table 3-6 Voltage Growth Cumulative Distribution .......................................................... 3-10 Table 3-7 Growth Rate as a Function of BOC Voltage Range ........................................... 3-11 Table 3-8 Indications with the Largest Growth in Cycle 22 .............................................. 3-12 Table 4-1 7/8-Inch Tube Burst Pressure vs. Bobbin Amplitude Correlation ....................... 4-3 Table 4-2 Tube Leak Rate vs. Bobbin Amplitude Correlation Parameters .......................... 4-4 Table 4-3 7/8-Inch Tube Probability of Leak Correlation Parameters ................................. 4-5 Table 6-1 Predicted Voltage Distribution at EOC-23 .......................................................... 6-3 Table 7-1 Condition Monitoring Leak and Burst Results for 2R22(1).................................. 7-2 Table 7-2 Operational Assessment Leak and Burst Results for EOC-23 (POD = 0.6) ........ 7-2 Table A-1 SG-A 2R22 DSI Indications................................................................................ A-1 Table A-2 SG-B 2R22 DSI Indications.............................................................................. A-12 Table A-3 SG-C 2R22 DSI Indications.............................................................................. A-26 SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 vi LIST OF FIGURES Figure 3-1 Voltage Distribution in SG-A (Measured vs. Predicted) .................................... 3-13 Figure 3-2 Voltage Distribution in SG-B (Measured vs. Predicted) .................................... 3-14 Figure 3-3 Voltage Distribution in SG-C (Measured vs. Predicted) .................................... 3-15 Figure 3-4 Number of Measured Bobbin DSI as a Function of TSP................................... 3-16 Figure 3-5 Voltage Growth / EFPY in SG-A during Cycles 21 and 22 ............................... 3-17 Figure 3-6 Voltage Growth / EFPY in SG-B during Cycles 21 and 22 ............................... 3-18 Figure 3-7 Voltage Growth / EFPY in SG-C during Cycles 21 and 22 ............................... 3-19 Figure 3-8 Voltage Growth / EFPY in SGs A, B, C and Overall Bounding Growth Curve .................................................................................................................. 3-20 Figure 3-9 Upper 5% of Growth/EFPY for SG-A ............................................................... 3-21 Figure 3-10 Upper 5% of Growth/EFPY for SG-B ............................................................... 3-22 Figure 3-11 Upper 5% of Growth/EFPY for SG-C ............................................................... 3-23 Figure 3-12 Cycle 22 Voltage Growth vs. BOC Voltage ....................................................... 3-24 Figure 6-1 SG-A Predicted Voltage Distribution at EOC-23 ................................................. 6-4 Figure 6-2 SG-B Predicted Voltage Distribution at EOC-23 ................................................. 6-5 Figure 6-3 SG-C Predicted Voltage Distribution at EOC-23 ................................................. 6-6 SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 1-1 1 INTRODUCTION This report provides a summary of the Beaver Valley Unit 2 steam generator (SG) bobbin and

+POINT'1 probe inspections at tube support plate (TSP) intersections from the Fall 2021, 2R22 outage, together with postulated Steam Line Break (SLB) leak rate and tube burst probability analyses. The 2R22 outage represents the sixth application of the Generic Letter (GL) 95-05 (Reference 1) voltage-based repair criteria, and implementation of its requirements, to the Beaver Valley Unit 2 Model 51M SGs. The criteria were implemented during the 2R16 outage. Information required by the GL 95-05 is provided in this report, including steam line break (SLB) leak rates and tube burst probabilities calculated using the end-of-cycle (EOC) conditions for the recently completed Cycle 22, representing a Condition Monitoring (CM) assessment of bobbin coil signal amplitudes for observed possible indications. In addition, a projection of EOC-22 bobbin coil voltage distributions, as well as the associated SG tube leak rates and burst probabilities through EOC-23 conditions, is provided.

The CM analysis at EOC-22 was carried out using the actual and deplugged bobbin coil voltage distributions measured during the 2R22 outage. Although the deplugged indications were not in service over the past operating cycle, the inclusion for conditional monitoring will lead to a more conservative result. These results show that the 2R22 CM leak rates and conditional burst probabilities for all three SGs are well within their respective allowable limits. A comparison with the projections made in the previous 90-Day Report at the 2R21 outage (Reference 2) shows that the predictions were conservative. These evaluations utilized the Westinghouse generic methodology that uses Monte Carlo analysis techniques (Reference 3).

The Operational Assessment (OA) analysis was performed to project leak rates and tube burst probabilities for postulated SLB conditions at the end of the upcoming cycle (EOC-23) based on the 2.0 volt repair criteria for 7/8-inch diameter tubes. These analyses utilized bobbin voltage distributions measured during the recent (2R22) inspection and a growth rate distribution bounding the last two inspections (2R21 and 2R22). Leak and burst analyses for the OA were performed using the Reference 4 default value primary-to-secondary pressure differential of 2,560 psi. The Cycle 23 OA predicts that SG-C will be the limiting SG for projected leakage. With a Cycle 23 period of operation estimated at 526 effective full power days (EFPD), the limiting EOC-23 maximum leak rate for SG-C is projected to be 0.229 gpm (room temperature), which is well below the allowable limit of 8.2 gpm for the faulted SG. The corresponding maximum tube burst probability for the limiting SG (SG-C) of 3.95 x 10-5 is well below the GL 95-05 limit of 1.0 x 10-2. Thus, the GL 95-05 requirements are predicted to be satisfied at the EOC-23. It is noted on Page 19 of Reference 17, and in Table 7B on Page 39 of Reference 18 that the allowable accident-induced primary-to-secondary SG tube leakage limit was increased from 2.1 to 8.1 gpm at STP. When accounting for the 0.1 gpm assumed leakage in the faulted SG, the limit increases from the previously used value of 2.2 gpm to 8.2 gpm. The corresponding maximum tube burst probability for the limiting SG (SG-C) of 3.95 x 10-5 is well below the GL 95-05 limit of 1.0 x 10-2

. Thus, the GL 95-05 requirements are predicted to be satisfied at the EOC-23.

1

+POINT is a trademark or registered trademark of Zetec, Inc. Other names may be trademarks of their respective owners.

SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 2-1 2

SUMMARY

AND CONCLUSIONS A total of 1,362 distorted support indications (DSI) plus 3 dents with indications (DNI) in all three SGs combined, for a total of 1,365 were reported during the Beaver Valley Unit 2 2R22 bobbin coil inspection. Per GL 95-05, only those DSI signals with a bobbin coil signal amplitude of 2.0 volts or greater are required to be inspected using a +POINT (or equivalent) probe. All DSI signals reported during 2R22 were less than 2.0 volts, so no indications were required to be tested with the +POINT probe. However, some indications were tested with the +POINT probe to confirm the minimal bobbin coil voltage growth condition. These indications were confirmed as axial outside diameter stress corrosion cracking (ODSCC) using the +POINT probe during the 2R16 inspection and have been inspected with a +POINT probe at each successive outage. In addition, in response to a prior Nuclear Regulatory Commission (NRC) question, all DSIs greater than 1.0 volt were inspected with a

+POINT probe. The maximum bobbin coil voltage indication in all three SGs was 1.68 volts on R7 C18 at the 02H tube support plate in SG-A.

SLB leak rate and tube burst probability analyses were performed using the actual 2R22 bobbin voltage distributions (CM analysis) as well as the projected EOC-23 bobbin voltage distributions (OA). Deplugged indication voltages were also included in each voltage distribution for both analyses. The SLB leak rates from the CM analysis show significant margins relative to the faulted SG allowable limit of 8.2 gpm (room temperature), Reference 17. The corresponding CM tube burst probability values are well below the allowable limit of 1.0 x 10-2.

At 2R22, the largest SLB leak rate in the CM analysis is calculated for SG-C, with a magnitude of 0.064 gpm, which is well below the allowable SLB leakage limit of 8.2 gpm in the faulted SG. All leak rate values quoted are equivalent volumetric rates at room temperature. The limiting conditional tube burst probability from the CM analysis, 1.70 10-5 calculated for SG-A, is well below the NRC reporting guideline of 1.0 x 10-2. Thus, the CM results are well within the allowable limit/reporting guideline.

SLB leak rate and tube burst probability projections at the EOC-23 conditions were performed using the latest alternate repair criteria (ARC) database available for 7/8-inch outside diameter (OD) tubing (Addendum 7 update), which is documented in Reference 4. Leak and burst analyses for the Cycle 23 OA were performed using the Reference 4 default primary-to-secondary pressure differential of 2,560 psi. SG-C is predicted to be the limiting SG for leakage and is also predicted to be the limiting SG for probability of burst. For a projected Cycle 23 duration of 526 EFPD, the EOC-23 leak rate projected for SG-C using the GL 95-05 constant probability of detection (POD) of 0.6 is 0.229 gpm (at room temperature), which is less than the current limit of 8.2 gpm in the faulted SG. This leak rate projection utilized the leak rate calculation methodology of References 5 and 6. The limiting EOC-23 burst probability of 3.95 10-5 is calculated for SG-C and is well below the allowable limit of 1.0 x 10-2.

Therefore, all acceptance criteria of Reference 1 will be satisfied throughout Cycle 23.

It should be noted that the 2R22 final eddy current database retained a duplicate DSI indications in SG-B at tube location R14C80 03H in the ECT database that was overlooked (Table A-2 of Reference 2) and was, therefore, removed for the evaluations performed within this report. It is, therefore, confirmed and noted that in the 2R22 analyses (Reference 2) that the duplicate DSI indication at R14C80 03H was in fact removed and the single voltage of 0.24 V was used.

Additionally, the R16C45 06C DNI indication that was reported in Reference 2 as 06H and has SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 2-2 been corrected for the current evaluations. During 2R21 the R16C45 indication for SG-C was a new DNI indication for that cycle; an equivalent DSI voltage was then computed using a correlation and erroneously recorded as 06H; however, it should have been recorded as 06C. This typo does not change the number of DSI indications in 2R21. Herein, the indication was captured correctly as R16C45 06C as a DNI with corresponding DSI voltage and the corresponding growth was then computed.

SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-1 3 2R22 INSPECTION RESULTS AND VOLTAGE GROWTH RATES 3.1 2R22 Inspection Results For outages prior to 2R16, the alternate repair criterion per GL 95-05 had been approved for Beaver Valley Unit 2 but was not implemented. First Energy Nuclear Operating Company (FENOC), now Energy Harbor Nuclear (EHN), had not implemented the criterion due to the small number of bobbin indications at TSP intersections which were confirmed to contain axial outside diameter stress corrosion cracking (ODSCC) using a +POINT probe. The criterion was implemented at 2R16 due to an increase in the number of distorted support plate indications (DSIs) confirmed to contain axial ODSCC from +POINT probe examination. It should be noted, for 2R16 and prior outages, the bobbin probe analysis utilized the guidance and requirements of GL 95-05. Since the initial 2R16 (and prior outages) inspection plan did not assume that GL 95-05 would be implemented, all bobbin coil DSIs were inspected using a +POINT probe. Note that under GL 95-05, only DSI signals with a 400/100 mix (hereafter referred to simply as the mix channel) signal amplitude of greater than 2.0 volts are required to be inspected using a +POINT probe.

In accordance with the guidance provided by GL 95-05, the 2R22 inspection of the Beaver Valley Unit 2 SGs consisted of a 100% eddy current (EC) bobbin probe full length examination of the tube bundles in all three SGs. All hot and cold leg TSP intersections were inspected using 0.720-inch diameter bobbin probes, with the exception of those hot leg TSP intersections in Rows 3 and 4 which contain SG tube sleeves at the hot leg top-of-tubesheet (TTS). In these two rows, a 0.630-inch diameter wide groove bobbin probe was used for DSI detection. If a DSI was observed using the 0.630-inch wide groove bobbin probe and the DSI could not be re-examined with a qualified rotating coil technique, the tube was to be plugged or repaired per the Beaver Valley Unit 2 SG Examination Guidelines (Reference 13). During the 2R22 outage, the DSI indications that were observed with the 0.630-inch wide groove probe were characterized as either no defect found (NDF) or confirmed to be single axial indications (SAIs) with +POINT probe voltage as follows:

SG Row-Col-Location Characterization +POINT Probe Voltage A R3C59 02H NDF 0.62 A R4C60 02H NDF 0.33 A R4C60 06H NDF 0.36 B R3C65 03H SAI 0.69 B R4C36 04H SAI 0.69 B R4C48 03H NDF 0.63 B R4C59 03H NDF 0.50 B R4C59 02H NDF 0.47 C R4C28 06H NDF 0.53 C R4C33 02H SAI 0.72 C R4C33 04H SAI 0.74 GL 95-05 states that smaller or larger diameter probes can be used to inspect tubes when it is impractical to utilize a nominal-size probe provided that the probes and procedures have been SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-2 demonstrated to give an equivalent voltage response and detection capability when compared to the nominal (in this case 0.720-inch) probe. Probe equivalency testing between the nominal 0.720-inch probe and 0.640-inch wide-groove probe has been performed and it was demonstrated that the wide-groove probe met the equivalency requirements of Appendix H of the EPRI PWR Examination Guidelines (Reference 14). Due to thicker walled sleeves at Beaver Valley Unit 2, an electrically similar 0.630-inch wide-groove probe was used in place of the 0.640-inch probe.

Reference 15 provides the evaluation for the equivalency basis of using the 0.630-inch wide-groove probe during 2R22.

To assess depth growth, the 2R20 and 2R21 DSIs with +POINT probe confirmation were also inspected at 2R22, even though none were required to be inspected with a +POINT probe due to the low bobbin amplitudes. This inspection showed little or no change in the +POINT probe signal character, thus implying little or no depth growth of the indication. The largest +POINT probe signal amplitude in the 300 kHz channel from the confirmed DSI indications (SAIs) is only 0.59 volt (SG-C at R24C79 02H), which represents a depth of 69.2% through-wall (TW) using the sizing protocol of Electric Power Research Institute (EPRI) Examination Technique Specification Sheet (ETSS) ETSS I28431. This particular indication was reported at 0.78 volt by bobbin probe during 2R21, which represents a 73.8% TW depth per ETSS I28431. Long term trending of the Unit 2 DSI population has shown a limited growth potential. For Cycles 10 through 22, the mean DSI voltage growth has been essentially zero. Additionally, the +POINT probe amplitudes for DSI signals confirmed as axial ODSCC have been much less than 1.0 volt, suggesting that a shallow depth of penetration exists. This in turn suggests the DSI voltage growth will remain minimal and not move to extreme over the next operating cycle. Thus, it can be concluded that the character of DSI indications reported to date has been associated with a depth of penetration well below 100% TW.

In addition, the EOC-22 eddy current inspection plan included 100% +POINT probe inspection of all hot leg and cold leg dents >5 volts (as measured from the bobbin probe), since GL 95-05 alternate repair criterion (ARC) does not apply to these tube-to-TSP intersections. The 2R22 eddy current inspection plan also included 100% +POINT probe inspection of dents with indication (DNI) due to this being a primary water stress corrosion cracking (PWSCC) concern and 25% of support plate residuals (SPR) due to this being an ODSCC concern. The DNI call can be generated by manual analysis or by using a tertiary auto analysis. As can be seen in Table 3-1, 1,130 total DNI indications were tested using a rotating pancake coil (RPC) probe. Three tube locations where DNI signals were identified by bobbin probe also had SAI indications confirmed by RPC probe.

These locations were in SG-A tube R23C19 at 05H, SG-B tube R30C48 at 04H and SG-C tube R16C45 at 06C, where a DSI voltages had to be imputed from a DSI/SAI voltage correlation developed. As a result, all three of these locations were included in the GL 95-05 CM and OA evaluations.

SPRs are defined as bobbin coil signals which do not contain flaw-like components but have a signal amplitude of >1.5 volts and phase angles >55 degrees. Axial ODSCC indications were not reported in these populations based on the +POINT probe analysis. No axial PWSCC or circumferential stress corrosion cracking (SCC) was reported at any TSP intersection. The

+POINT probe inspection program for dents, DNIs, and SPRs was extensive. The following table SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-3 provides the number of +POINT probe examinations performed at TSP intersections because of these program requirements during 2R22.

Table 3-1 2R22 RPC Examinations due to Bobbin Calls DNI SPR DNT SG RPC RPC

>5V Dents Total Total Tested Tested A 16 778 778 267 81 B 30 99 99 140 45 C 12 253 253 324 99 The requirements of the GL 95-05 methodology in Section 1.b of Reference 1 are all satisfied.

Tube intersections with the flow distribution baffle are excluded from this GL 95-05 analysis.

There are no other excluded tube support plate intersections (Reference 7). None of the indications included in this analysis were detected in dents >5.0 volts, as measured by bobbin. All SPR indications >2.0 volts were tested with the +POINT probe so that no ODSCC indications

>1.0 volt would be missed or misread. No copper signal interference was detected.

Table 3-2, Table 3-3 and Table 3-4 present the 2R22 bobbin voltage data for the TSP intersections in the three SGs with distorted support indications (DSIs). A total of 1,362 (plus 3, for a total of 1,365) DSI indications at TSP locations were detected in all three SGs combined, of which only 21 indications had amplitudes greater than 1.0 volt and one (1) indication with amplitude greater than 1.5 volts. For the analyses, the DSI indications are binned in 0.1 volt intervals where the numeric value of the bin represents the upper range of the bin. Therefore, the 1.0 volt bin contains DSI voltages from 0.91 to 1.00 volt. No DSI voltage exceeded the GL 95-05 lower voltage repair limit of 2.0 volts. For 2R22, all DSIs with a voltage amplitude greater than or equal to 1.0 volt were automatically tested using the +POINT probe, which exceeds the requirement by GL 95-05 to test all DSIs with a voltage amplitude greater than or equal to 2.0 volts. Comparing the inspection results from 2R21 to 2R22, the following observations were made:

- There were 79 new DSI indications in 2R22 o 21 in SG-A o 33 in SG-B o 25 in SG-C (in 2R21 R16C45 was incorrectly identified at 06H instead of 06C and so there were, therefore, initially 26 new indications prior to this correction)

- There were 14 new SAI/MAI indications confirmed by +POINT probe in 2R22.

o Three (3) SAI in SG-A o Two (2) SAI in SG-B o Eight (8) SAI in SG-C o One (1) MAI in SG-C

- There were 10 indications confirmed with HAI indications by the +POINT probe on tubes that were deplugged in SG-B SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-4 Table 3-2, Table 3-3 and Table 3-4 tabulate the number of field bobbin indications, the number of those indications that were +POINT probe RPC inspected, the number of +POINT probe RPC confirmed indications, and the number of indications removed from service. Several tubes were deplugged in the current inspection with the intent of returning the tubes to service after inspection in accordance with the alternate repair criteria. The distribution of 2R22 indications is also shown in Figure 3-1, Figure 3-2, and Figure 3-3 for SG-A, SG-B, and SG-C, respectively.

The distribution of 2R22 indications as a function of support plate location is summarized in Table 3-5 and shown in Figure 3-4. The data shows a strong predisposition of ODSCC to occur in the first few hot leg TSPs although the mechanism extended to higher TSPs. Only 28 indications were detected on the cold leg side; 21 of these exceeded 0.5 volt, but do not exceed 0.75 volt; 7 of these exceeded 0.75 volt but do not exceed 1.0 volt. This distribution is consistent with that observed at other plants and is commonly attributed to the temperature dependence of ODSCC.

Appendix A provides a listing of all DSIs reported at the Beaver Valley Unit 2 2R22 outage in the form of tables (Table A-1, Table A-2, and Table A-3), whether axial ODSCC was confirmed (SAI/MAI in Comment column), whether the tube containing the indication(s) was plugged or deplugged (Comment column), and whether the indication was tested and no defect was found (NDF in Comment column).

3.2 Voltage Growth Rates For projection of leak rates and tube burst probabilities at EOC-23, voltage growth rates were developed from the 2R21 and 2R22 inspection bobbin data. Growth is determined when the same indication can be identified in two successive inspections. Since there can be new indications in one outage, the number of indications for which a growth can be defined is less than the number of indications detected. Table 3-5 shows a distribution of growth as a function of TSP number.

Table 3-6 shows the frequency and cumulative probability distribution of growth as a function of voltage change in each Beaver Valley Unit 2 steam generator during Cycle 22 on a per effective full-power years (EFPY) basis. The difference in the total number of DSIs between these two tables is largely due to new DSIs.

The average bobbin coil voltage growth rates for each SG during Cycle 22 are given in Table 3-7. The average growth rates over the entire voltage range are negative indicating essentially no overall voltage growth. The Cycle 22 growth rates on an EFPY basis for each SG are shown in Figure 3-5, Figure 3-6, Figure 3-7 and Figure 3-8. The differences in cumulative growth observed during 2R22 and during 2R21 vary in each SG. The SG-A average growth is slightly higher in 2R22 in the upper and lower tails. The SG-B average growth is slightly higher in 2R22 in the upper tail and slightly lower in the lower tail. The SG-C average growth is slightly higher in 2R22 in the upper and lower tails. The growth figures also include curves which bound the growth observed during both Cycle 21 and Cycle 22 in SGs A, B and C, respectively, and the bounding growth curve was used in the OA. Figure 3-9, Figure 3-10 and Figure 3-11 provide a magnified view of the upper 5% tail of the growth curves for SG-A, SG-B and SG-C, respectively.

Table 3-8 lists the top 24 indications based on the Cycle 22 growth rate in descending order. The average growth rates over the entire voltage range for Cycle 22 are mostly negative (Table 3-5)

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-5 indicating essentially no voltage growth, but Table 3-8 shows that in cases of positive growth rates, that Cycle 22 had only modest growth. The growth during Cycle 22 had no indication over 1.0 volt/EFPY, only four indications greater than 0.5 volt/EFPY and under 1.0 volt/EFPY, and twenty indications 0.5 volt/EFPY or less.

To determine if Beaver Valley Unit 2 growth rates exhibited a potential dependency on the beginning of cycle (BOC) voltage, the growth rate data for Cycle 22 was plotted against BOC voltage, and the resulting plot is shown in Figure 3-12. The Cycle 22 growth data do not show any tendency to increase with the BOC voltage; if at all, the growth seems to decrease with increasing BOC voltage. Therefore, growth can be assumed independent of voltage in the Monte Carlo analysis for the OA.

3.3 Probe Wear Criteria The probe wear criterion approved by the NRC (Reference 8) was applied during the 2R22 inspection.

When a probe does not pass the 15% wear limit, this alternate criterion requires that only tubes with indications above 75% of the repair limit inspected since the last successful probe wear check be re-inspected with a good probe. As the repair limit for Beaver Valley Unit 2 is 2.0 volts, all tubes containing indications for which the worn probe voltage is above 1.5 volts are to be inspected with a new probe. One DSI indication in SG-A had a measured bobbin voltage that exceeded the 1.5 volt criteria during 2R22. The location that this occurred is at R7C18 02H [tube Row 7, Column 18 at the second tube support plate on the hot-leg side]. The probe used to test this location satisfied the wear limit criteria of GL 95-05 during 2R22. This was the same location as in 2R21 (Reference 2). In that case the independent qualified data analyst (IQDA) was consulted regarding the condition of the probe that inspected SG-A tube R7C18 and detected the DSI at the 02H support plate. It was confirmed in 2R21 and 2R22 that the probe satisfied the wear limit criteria that would otherwise categorize it as a worn probe. Therefore, no re-tests were required due to probe wear applicable to GL 95-05.

3.4 NDE Uncertainties The non-destructive examination (NDE) uncertainties applied for the Cycle 22 voltage distributions in the Monte Carlo analyses for leak rate and burst probabilities are the same as those in the NRC Generic Letter 95-05 (Reference 1). The probe wear uncertainty has a standard deviation of 7.0%

about a mean of zero and has a cut-off at 15% based on implementation of the probe wear standard.

If the random sample of probe wear selected during the Monte Carlo simulations exceeds 15%,

sampling of the probe wear distribution is continued until a value less than 15% is picked. The analyst variability uncertainty has a standard deviation of 10.3% about a mean of zero with no cut-off. These NDE uncertainty distributions are included in the Monte Carlo analyses for SLB leak rates and tube burst probabilities based on the 2R22 actual voltage distributions as well as for the EOC-23 projections.

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-6 Table 3-2 2R22 DSI Voltage Distribution for SG-A

+POINT Not

+POINT Probe Returned Voltage Number of +POINT Probe Tested Plugged to Bin Indications Probe Confirmed But Not Service Tested Confirmed 0.1 28 0 0 28 0 28 0.2 114 4 4 106 0 114 0.3 113 9 4 100 0 113 0.4 62 2 2 58 0 62 0.5 37 3 1 33 0 37 0.6 20 1 0 19 0 20 0.7 10 1 1 8 0 10 0.8 7 1 1 5 0 7 0.9 3 1 0 2 0 3 1.0 4 1 1 2 0 4 1.1 2 1 1 0 0 2 1.2 3 0 2 1 0 3 1.3 2 0 2 0 0 2 1.7 1 0 1 0 0 1 Total 406 24 20 362 0 406(1)

Average voltage = 0.31 volt Note:

(1) This includes the 3 tubes in SG-A with DSIs that were deplugged. These deplugged tubes were included in the growth analysis so that a historical growth would be established for the next cycle.

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-7 Table 3-3 2R22 DSI Voltage Distribution for SG-B

+POINT Not

+POINT Probe Returned Voltage Number of +POINT Probe Tested Plugged to Bin Indications Probe Confirmed But Not Service Tested Confirmed 0.1 33 0 0 33 0 33 0.2 142 4 4 134 0 142 0.3 133 4 2 127 0 133 0.4 73 4 3 66 0 73 0.5 68 4 2 62 0 68 0.6 32 2 0 30 0 32 0.7 16 3 1 12 0 16 0.8 12 0 0 12 0 12 0.9 9 0 1 8 0 9 1.0 5 2 0 3 0 5 1.1 3 0 1 2 0 3 1.2 0 0 0 0 0 0 1.3 1 0 1 0 0 1 1.7 0 0 0 0 0 0 Total 527 23 15 489 0 527(1)

Average voltage = 0.32 volt Note:

(1) This includes the 18 DSIs in 14 tubes in SG-B that were deplugged. These deplugged tubes were included in the growth analysis so that a historical growth would be established for the next cycle.

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-8 Table 3-4 2R22 DSI Voltage Distribution for SG-C

+POINT Not

+POINT Returned Voltage Number of Probe Tested +POINT Probe Plugged to Bin Indications But Not Probe Confirmed Service Confirmed Tested 0.1 13 0 0 13 0 13 0.2 84 2 1 81 0 84 0.3 91 4 2 85 0 91 0.4 86 6 1 79 0 86 0.5 57 5 0 52 0 57 0.6 45 8 2 35 0 45 0.7 25 4 0 21 0 25 0.8 10 4 0 6 0 10 0.9 7 1 0 6 0 7 1.0 8 0 0 8 0 8 1.1 3 1 2 0 0 3 1.2 1 0 1 0 0 1 1.3 0 0 0 0 0 0 1.4 1 0 1 0 0 1 1.5 1 1 0 0 0 1 Total 432 36 10 386 0 432 Average voltage = 0.38 volt SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-9 Table 3-5 Indication Distribution as Function of Tube Support Plate SG-A SG-B Number of Max. Average Largest Average Number of Max. Average Largest Average TSP Indications Volts Volts Growth, Volts Growth, Volts TSP Indications Volts Volts Growth, Volts Growth, Volts 02H 135 1.68 0.33 0.43 -0.02 02H 204 1.22 0.34 0.32 -0.01 03H 100 1.29 0.33 0.84 -0.02 03H 156 1.02 0.34 0.31 -0.04 04H 62 0.92 0.29 0.18 -0.01 04H 73 0.98 0.29 0.26 0.00 05H 55 0.99 0.30 0.35 0.00 05H 45 0.92 0.26 0.11 -0.02 06H 14 0.60 0.27 0.11 -0.02 06H 9 0.45 0.23 0.06 0.00 07H 8 0.61 0.31 0.09 0.00 07H 12 0.53 0.25 0.16 -0.02 08H 12 0.49 0.25 0.12 -0.03 08H 12 0.67 0.29 0.11 -0.02 02C 0 0.00 0.00 0.00 0.00 02C 1 0.40 0.40 -0.12 -0.12 03C 0 0.00 0.00 0.00 0.00 03C 1 0.31 0.31 0.02 0.02 04C 0 0.00 0.00 0.00 0.00 04C 2 0.57 0.34 0.00 -0.01 05C 6 0.48 0.28 0.04 0.01 05C 3 0.48 0.31 0.06 0.04 06C 3 0.31 0.19 0.02 0.01 06C 3 0.34 0.26 0.02 -0.02 07C 3 0.50 0.31 0.13 0.08 07C 4 0.54 0.37 0.01 -0.06 08C 8 0.32 0.21 0.06 0.01 08C 2 0.31 0.24 -0.04 -0.08 Total 406 Total 527 SG-C Composite Number of Max. Average Largest Average Number of Max. Average Largest Average TSP TSP Indications Volts Volts Growth, Volts Growth, Volts Indications Volts Volts Growth, Volts Growth, Volts 02H 149 1.43 0.45 0.73 0.03 02H 488 1.68 0.373 0.73 -0.003 03H 119 1.09 0.37 0.43 -0.02 03H 375 1.29 0.345 0.84 -0.027 04H 75 1.32 0.33 0.39 0.03 04H 210 1.32 0.307 0.39 0.007 05H 38 0.65 0.29 0.23 0.00 05H 138 0.99 0.284 0.35 -0.005 06H 21 0.53 0.27 0.22 0.04 06H 44 0.60 0.259 0.22 0.012 07H 10 0.55 0.31 0.34 0.02 07H 30 0.61 0.285 0.34 0.000 08H 15 0.51 0.32 0.33 0.03 08H 39 0.67 0.288 0.33 -0.003 02C 0 0.00 0.00 0.00 0.00 02C 1 0.40 0.400 -0.12 -0.120 03C 0 0.00 0.00 0.00 0.00 03C 1 0.31 0.310 0.02 0.020 04C 0 0.00 0.00 0.00 0.00 04C 2 0.57 0.335 0.00 -0.005 05C 1 0.58 0.58 0.04 0.04 05C 10 0.58 0.317 0.06 0.024 06C 1 0.98 0.98 0.04 0.04 06C 7 0.98 0.334 0.04 0.002 07C 2 0.46 0.28 0.13 -0.02 07C 9 0.54 0.332 0.13 -0.007 08C 1 0.35 0.35 -0.47 -0.47 08C 11 0.35 0.227 0.06 -0.056 Total 432 Total 1365 SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-10 Table 3-6 Voltage Growth Cumulative Distribution SG-A SG-B SG-C Composite Voltage Change : Cumulative Cumulative Cumulative Cumulative Number of Number of Number of Number of EOC-21 minus Probability Probability Probability Probability Indications Indications Indications Indications EOC-20 Distribution Distribution Distribution Distribution V<-0.79 1 0.002597 1 0.002024 1 0.002457 3 0.002333

-0.79<V-0.7 0 0.0 0 0.0 0 0.0 0 0.0

-0.69<V-0.6 2 0.007792 1 0.004049 0 0.0 3 0.004666

-0.59<V-0.5 1 0.010390 1 0.006073 2 0.007371 4 0.007776

-0.49<V-0.4 2 0.015584 1 0.008097 3 0.014742 6 0.012442

-0.39<V-0.3 7 0.033766 4 0.016194 6 0.029484 17 0.025661

-0.29<V-0.2 9 0.057143 14 0.044534 16 0.068796 39 0.055988

-0.19<V-0.1 34 0.145455 63 0.172065 34 0.152334 131 0.157854

-0.09 <V0.0 168 0.581818 216 0.609312 127 0.464373 511 0.555210 0.01<V0.1 125 0.906494 148 0.908907 145 0.820639 418 0.880249 0.11<V0.2 23 0.966234 33 0.975709 41 0.921376 97 0.955677 0.21<V0.3 7 0.984416 9 0.993927 18 0.965602 34 0.982115 0.31<V0.4 3 0.992208 3 1.000000 11 0.992629 17 0.995334 0.41<V0.5 1 0.994805 0 0.995526 1 0.995086 2 0.996890 0.51<V0.6 0 0.0 0 0.0 0 0.0 0 0.000000 0.61<V0.7 0 0.0 0 0.0 1 0.997543 1 0.997667 0.71<V0.8 1 0.997403 0 0.0 1 1.0 2 0.999222 0.81<V0.9 1 0.0 0 0.0 0 0.0 1 1.0 V>0.9 0 1.0 0 0.0 0 0.0 0 0.0 Number of Indications with 385 494 407 1286 Growth Average 0.8% -0.2% 9.6% N/A Percentage Growth SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-11 Table 3-7 Growth Rate as a Function of BOC Voltage Range Number of Average Voltage Average BOC Average Voltage Voltage Range Indications for Growth per Voltage Cycle 21 Growth Growth EFPY Composite Entire Range 1286 0.339 -0.008 -0.006 Vboc<0.75 1225 0.309 -0.001 -0.001 Vboc>0.75 61 0.942 -0.149 -0.107 SG-A Entire Range 385 -0.014 -0.010 -0.010 Vboc<0.75 365 0.290 -0.008 -0.006 Vboc>0.75 20 0.938 -0.118 -0.084 SG-B Entire Range 494 0.332 -0.020 -0.014 Vboc<0.75 474 0.305 -0.011 -0.008 Vboc>0.75 20 0.969 -0.225 -0.161 SG-C Entire Range 407 0.363 0.012 0.009 Vboc<0.75 386 0.332 0.018 0.013 Vboc>0.75 21 0.920 -0.107 -0.077 SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-12 Table 3-8 Indications with the Largest Growth in Cycle 22 C22 +POINT TSP EOC-21 EOC-22 SG Row Column Growth Probe No. Volts Volts Volts Tested A 7 19 03H 0.44 1.28 0.84 Yes (NDF)

C 7 58 02H 0.30 1.03 0.73 Yes (NDF)

A 7 18 03H 0.56 1.29 0.73 Yes (NDF)

C 13 35 02H 0.82 1.43 0.61 Yes (SAI)

A 24 16 02H 0.25 0.68 0.43 No C 18 48 03H 0.31 0.74 0.43 No C 5 15 04H 0.50 0.89 0.39 Yes (SAI)

C 13 64 02H 0.38 0.74 0.36 No C 22 20 02H 0.51 0.87 0.36 No A 11 48 02H 0.80 1.16 0.36 Yes (NDF)

A 8 32 05H 0.47 0.82 0.35 Yes (SAI)

C 11 17 02H 0.47 0.82 0.35 No C 31 78 04H 0.62 0.97 0.35 No C 25 65 07H 0.21 0.55 0.34 Yes (SAI)

C 25 76 02H 0.34 0.68 0.34 No C 20 76 02H 0.41 0.75 0.34 Yes (SAI)

C 6 78 03H 0.76 1.09 0.33 Yes (NDF)

C 14 70 08H 0.18 0.51 0.33 No A 3 84 03H 0.42 0.74 0.32 No B 9 11 02H 0.51 0.83 0.32 No B 10 17 02H 0.51 0.83 0.32 No B 2 65 03H 0.12 0.43 0.31 No C 28 35 02H 0.63 0.94 0.31 No C 24 79 02H 0.78 1.08 0.30 Yes (SAI)

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-13 Predicted vs. Measured Voltage Distribution in SGA 180 160 140 120 100 2R22 Measured 80 2R22 Predicted 60 40 20 0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 Figure 3-1 Voltage Distribution in SG-A (Measured vs. Predicted)

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-14 Predicted vs. Measured Voltage Distribution in SGB 180 160 140 120 100 2R22 Measured 80 2R22 Predicted 60 40 20 0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 Figure 3-2 Voltage Distribution in SG-B (Measured vs. Predicted)

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-15 Predicted vs. Measured Voltage Distribution in SGC 180 160 140 120 100 2R22 Measured 80 2R22 Predicted 60 40 20 0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 Figure 3-3 Voltage Distribution in SG-C (Measured vs. Predicted)

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-16 Number of Indications by TSP Number 210 200 190 180 170 160 150 Number of Indications 140 130 120 110 SG A 100 90 SG B 80 70 SG C 60 50 40 30 20 10 0

02H 03H 04H 05H 06H 07H 08H 02C 03C 04C 05C 06C 07C 08C TSP Number Figure 3-4 Number of Measured Bobbin DSI as a Function of TSP SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-17 1

0.9 Bounding Growth Curve 2R22 SGA Cumulative Distribution 0.8 2R21 SGA Cumulative Distribution 0.7 0.6 CDF 0.5 0.4 0.3 0.2 0.1 0

1 0.8 0.6 0.4 0.2 0 0.2 0.4 0.6 0.8 1 Growth Figure 3-5 Voltage Growth / EFPY in SG-A during Cycles 21 and 22 SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-18 1

Bounding Growth Curve 0.9 2R22 SGB Cumulative Distribution 0.8 2R21 SGB Cumulative Distribution 0.7 0.6 CDF 0.5 0.4 0.3 0.2 0.1 0

1 0.8 0.6 0.4 0.2 0 0.2 0.4 0.6 0.8 1 Growth Figure 3-6 Voltage Growth / EFPY in SG-B during Cycles 21 and 22 SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-19 1

Bounding Growth Curve 0.9 2R22 SGC Cumulative Distribution 0.8 2R21 SGC Cumulative Distribution 0.7 0.6 CDF 0.5 0.4 0.3 0.2 0.1 0

1 0.8 0.6 0.4 0.2 0 0.2 0.4 0.6 0.8 1 Growth Figure 3-7 Voltage Growth / EFPY in SG-C during Cycles 21 and 22 SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-20 1

0.9 0.8 0.7 0.6 CDF 0.5 0.4 Bounding Growth Curve 2R21 SGA Cumulative Distribution 0.3 2R22 SGA Cumulative Distribution 2R21 SGB Cumulative Distribution 0.2 2R22 SGB Cumulative Distribution 2R21 SGC Cumulative Distribution 0.1 2R22 SGC Cumulative Distribution 0

1 0.8 0.6 0.4 0.2 0 0.2 0.4 0.6 0.8 1 Growth Figure 3-8 Voltage Growth / EFPY in SGs A, B, C and Overall Bounding Growth Curve SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-21 Upper 5% of Growth/EFPY for SG A 1.01 1

0.99 0.98 2R21 Cumulative Growth 2R22 Cumulative Growth 0.97 2R22 Bounding Growth Curve 0.96 0.95 0.94 0 0.2 0.4 0.6 0.8 1 1.2 Figure 3-9 Upper 5% of Growth/EFPY for SG-A SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-22 Upper 5% of Growth/EFPY for SG B 1.01 1

0.99 0.98 2R21 Cumulative Growth 2R22 Cumulative Growth 0.97 2R22 Bounding Growth Curve 0.96 0.95 0.94 0 0.2 0.4 0.6 0.8 1 1.2 Figure 3-10 Upper 5% of Growth/EFPY for SG-B SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-23 Upper 5% of Growth/EFPY for SG C 1.01 1

0.99 0.98 2R21 Cumulative Growth 2R22 Cumulative Growth 0.97 2R22 Bounding Curve 0.96 0.95 0.94 0 0.2 0.4 0.6 0.8 1 1.2 Figure 3-11 Upper 5% of Growth/EFPY for SG-C SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-24 Cycle 22 Growth vs. BOC Volts 1.6 1.4 1.2 1

0.8 0.6 Growth in Volts SG A Indications 0.4 SG B Indications 0.2 SG C Indications 0

R² = 0.0908 Linear (SG A Indications) 0.2 R² = 0.1537 Linear (SG B Indications) 0.4 R² = 0.0748 Linear (SG C Indications) 0.6 0.8 1

1.2 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 BOC Volts Figure 3-12 Cycle 22 Voltage Growth vs. BOC Voltage SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 4-1 4 DATABASE APPLIED FOR LEAK AND BURST CORRELATIONS 4.1 Tube Material Properties The tube material properties are provided in Table 6-4 of Reference 4 for 7/8-inch diameter tubes.

The normalized mean flow stress (sum of yield and ultimate strengths divided by 2) used in the analysis is 68.78 ksi.

4.2 Burst Correlation The burst pressure, Pb, is normalized to a material with a flow stress of 68.78 ksi, which is the mean of the Westinghouse 7/8-inch tube data. The actual material property values for Beaver Valley Unit 2 are slightly higher than the average of all Westinghouse data. The correlation parameters shown in Table 4-1 are taken from Reference 4.

4.3 Leak Rate Correlation The steam line break pressure to be applied is 2,560 psi unless a lower pressure can be justified.

Therefore, the leak correlation for pressure of 2,560 psi from Reference 4 is used for the leakage predictions. The parameters are shown in Table 4-2. The leak rate criterion is given in terms of gallons per minute as condensed liquid at room temperature.

4.4 Probability of Leak Correlation The probability of leak as a function of indication voltage is taken from Reference 4. The parameters are shown in Table 4-3. In the Monte Carlo analysis, leakage is quantified only if the indication is computed to be a leaker, based on the probability of leak correlation.

4.5 NDE Uncertainties The NDE uncertainties applied for the EOC-22 and EOC-23 voltage projections are described in Reference 1. The probe wear uncertainty has a standard deviation of 7% about a mean of zero and has a cut-off at 15% based on implementation of the probe wear standard. The analyst variability uncertainty has a standard deviation of 10.3% about a mean of zero with no cut-off. These NDE uncertainty distributions are used in the Monte Carlo analysis to predict the burst probabilities and accident leak rates at EOC-22 and EOC-23. The voltages reported were adjusted to account for differences between the laboratory standard and the standard used in the field.

4.6 Upper Voltage Repair Limit Per Table 5.4-20 of Reference 12, the Beaver Valley Unit 2 Updated Final Safety Analysis Report (UFSAR), the pressurizer safety relief valves have a nominal setting of 2485 psig, or the Reactor Coolant System (RCS) design pressure. Applying a 3% allowance for accumulation per Section 2 of Attachment 1 to GL 95-05, the applicable SLB conditions pressure differential across the SG tubes is then 2,560 psig, which is the traditional pressure differential used for prior GL 95-05 analyses. The upper voltage repair limit of 4.60 volts is based on the structural limit in Table 4-1 SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 4-2 for a pressure differential of 2,560 psi with a safety factor of 1.4 applied to the differential pressure.

The upper voltage repair limit considers the projected voltage growth during the next cycle and NDE uncertainty. The maximum average percentage growth rate as a percentage of BOC voltage values for any steam generator is seen from Table 3-6 to be 9.6% for SG-C. According to Reference 1, the minimum growth adjustment is 30% per EFPY (43.2% per cycle for the bounding 526 EFPD for Cycle 22). Since this value is higher than the average percentage growth realized for any one SG, it is applied to the upper voltage repair limit calculation. Therefore, the specific maximum growth value of 43.2% and 20% for NDE uncertainty was used to estimate the upper voltage repair limit. This results in an upper voltage repair limit of 7.51 / (1 + 0.432 + 0.20) = 4.60 volts. No indications greater than this voltage were left in service; the largest DSI voltage reported at 2R22 was 1.68 volts.

The analysis takes no credit for power operated relief valve (PORV) actuation even though the PORVs, block valves, and associated testing programs have been shown to satisfy the requirements of GL 90-06, as indicated in the NRC Safety Evaluation Report dated May 15, 1995. Crediting the PORVs would effectively increase the upper voltage repair limit by limiting the maximum pressure differential during a postulated SLB event and would reduce the calculated SLB conditions by limiting the maximum pressure differential.

Considering the inspection history of the Beaver Valley Unit 2 SGs, it is unlikely that a bobbin coil DSI voltage of >4.5 volts will be observed within the Beaver Valley Unit 2 SGs.

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 4-3 Table 4-1 7/8-Inch Tube Burst Pressure vs. Bobbin Amplitude Correlation PB a0 a1 log(Volts)

Parameter Addendum 7 Database Value Intercept, a0 7.4801 Slope, a1 -2.4002 2

Index of Deter., r 79.67%

Std. Deviation, Error 0.8802 Mean of Log(V) 0.3111 SS of Log(V) 51.6595 N (data pairs) 100 Str. Limit (2560 psi) (1) 7.51V Str. Limit (2405 psi) 9.40V (2) p Value for a1 5.6010-36 Reference f 68.78 ksi (3)

Notes: (1) Values reported correspond to applying a safety factor of 1.4 on the differential pressure associated with a postulated SLB event.

(2) Numerical values are reported only to demonstrate compliance with the requirement that the value be less than 0.05.

(3) This is the flow stress value to which all data were normalized prior to performing the regression analysis. This affects the coefficient and standard error values. The corresponding values for a flow stress of 75.0 ksi can be obtained from the above values by multiplying by 1.0904.

(4) Reference to this table is Table 6-4 from Reference 4.

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 4-4 Table 4-2 Tube Leak Rate vs. Bobbin Amplitude Correlation Parameters Q 10b3 b4 log Volts Parameter Addendum 7 Database Value SLB P = 2560 psi Intercept, b3 -0.33476 Slope, b4 0.95311 2

Index of Determination, r 12.4%

Residuals, Error (b5) 0.8175 Mean of Log(Q) 0.7014 SS of Log(Q) 22.8754 p Value for b4 2.4%

SLB P = 2405 psi Intercept, b3 -0.8039 Slope, b4 1.2077 2

Index of Determination, r 20.0%

Residuals, Error (b5) 0.7774 Mean of Log(Q) 0.5090 SS of Log(Q) 22.6667 p Value for b4 0.5%

Common Data Data Pairs, N 32 Mean of Log(V) 1.0871 SS of Log(V) 3.1116 Notes: (1) Reference to this table is Table 6-6 from Reference 4.

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 4-5 Table 4-3 7/8-Inch Tube Probability of Leak Correlation Parameters 1

Pr( Leak )

1 e b1 b2 log(Volts )

Parameter Addendum 7 Database Value Logistic Intercept, b1 -4.9847 Logistic Slope, b2 7.6110 Intercept Variance, V11 (1) 1.2904 Covariance, V12 -1.7499 Slope Variance, V22 2.8181 Number of Data, N 120 Deviance 33.66 Pearson SD 62.9%

MSE 0.285 Notes: (1) Parameters Vij are the elements of the covariance matrix of the coefficients, i, of the regression equation.

(2) Reference to this table is Table 6-5 from Reference 4.

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 5-1 5 SLB ANALYSIS METHODS A Monte Carlo analysis technique is used to calculate the SLB leak rates and tube burst probabilities for both actual 2R22 and projected EOC-23 voltage distributions. The Monte Carlo analysis accounts for parameter uncertainty. The analysis methodology is described in the Westinghouse generic methods report of Reference 4 as supplemented by References 5 and 6. The Monte Carlo computer program used to implement this method is documented in Reference 9. Essentially the same methodology was applied to leak and burst analyses performed for the original Beaver Valley Unit 1 SGs, Reference 10.

In general, the methodology involves application of correlations for burst pressure, probability of leakage and leak rate to a measured or calculated EOC voltage distribution to estimate the likelihood of tube burst and primary-to-secondary leakage during a postulated SLB event. Uncertainties associated with burst pressure, leak rate probability and leak rate correlation parameters are explicitly included by sampling distributions for the parameter uncertainties through the Monte Carlo sampling process. NDE uncertainties are also included. The voltage distributions used in the leak and burst projections for the next operating cycle are obtained by applying growth data to the BOC distribution.

The POD used to generate the BOC voltage distributions considers both detection uncertainty and the likely occurrence of new indications. Comparisons of projected EOC voltage distributions with actual distributions after a cycle of operation for a number of plants have shown that the Monte Carlo analysis technique yields conservative estimates for EOC voltage distribution as well as leak and burst results based on those distributions.

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 6-1 6 BOBBIN VOLTAGE DISTRIBUTIONS This section describes the input data used to calculate EOC bobbin voltage distributions and presents results of calculations to project EOC-23 voltage distributions.

6.1 Calculation of Voltage Distributions The analysis for EOC-23 voltage distribution starts with an initial voltage distribution which is projected to the end-of-cycle conditions based on the growth rate and the anticipated cycle operating duration. The number of indications assumed in the analysis to project EOC voltage distributions, SLB leak rates and tube burst probabilities is obtained by adjusting the number of reported indications using a POD, which accounts for both the detection uncertainty and the development of new indications over the projection period. This is accomplished by using a POD factor, which is defined as the ratio of the actual number of indications detected to total number of indications present. A conservative value is assigned to the POD based on historical data, and the value used herein is discussed in Section 6.2. The calculation of projected bobbin voltage frequency distribution is based on a net total number of indications returned to service, defined as follows.

NTot RTS = Ni / POD - Nrepaired + Ndeplugged

Where, NTot RTS = Number of bobbin indications being returned to service for the next cycle, Ni = Number of bobbin indications (in tubes in service) identified by inspection after the previous cycle, POD = Probability of detection, Nrepaired = Number of Ni which are repaired (plugged) after the last cycle, Ndeplugged = Number of indications in tubes deplugged after the last cycle and returned to service in accordance with voltage-based repair criteria.

There are deplugged tubes returned to service at the beginning of Cycle 23 (BOC-23); therefore, Ndeplugged > 0. No tubes with DSI indications were plugged, therefore Nrepaired = 0. 2R21 RPC no degradation found (NDF) indications were included in establishing the BOC-23 indication distributions shown in Table 6-1. During the Monte Carlo simulations, voltages for bins with several indications are selected by randomly sampling the voltage bins. For a few higher voltage indications in each SG, each indication is considered to be in a separate bin, and the actual indication voltage is utilized in the calculations.

The methodology used in the projection of EOC-23 bobbin voltage frequency distributions is described in Reference 3, and it is essentially the same as that used in the original Beaver Valley Unit 1 SGs, Reference 10.

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 6-2 6.2 Probability of Detection The Generic Letter 95-05 (Reference 1) requires the application of a constant POD value of 0.6 to define the BOC distribution for EOC voltage projections unless an alternate POD is approved by the NRC. A POD value of 1.0 represents the ideal situation where all indications are detected. In this report, the Reference 1 POD value of 0.6 is used for the EOC-23 projection.

6.3 Limiting Growth Rate Distribution As discussed in Section 3.2, the NRC guidelines in Generic Letter 95-05 stipulate that the more conservative growth rate distributions from the past two inspections should be utilized for projecting EOC distributions for the next cycle. For conservatism, a growth rate curve which bounded the growth rates of both cycles was used (Figure 3-5, Figure 3-6 and Figure 3-7). Growth distributions used in the Monte Carlo calculations are specified in the form of a histogram, so no interpolation is performed between growth bins. This assures that the largest growth value in the distribution is utilized in the Monte Carlo simulations.

6.4 Cycle Operating Period The operating periods used in the growth rate/EFPY calculations and voltage projections are as follows.

Cycle 22 - 509.63 EFPD or 1.395 EFPY (actual)

Cycle 23 - 526 EFPD or 1.440 EFPY (projected) 6.5 Projected EOC-23 Voltage Distribution Calculations for the EOC-23 bobbin voltage projections were performed for all three SGs based on the 2R22 distributions shown in Table 6-1. The BOC-23 distributions were adjusted to account for probability of detection as described above, and the adjusted number of indications at BOC-23 is also shown in Table 6-1. Calculations were performed using a constant POD of 0.6 and 1,000,000 Monte Carlo trials. The distribution of indications at BOC-23 and the distribution of indications projected to EOC-23 are shown in Figure 6-1, Figure 6-2 and Figure 6-3 for SG-A, SG-B and SG-C, respectively.

SG-B has the largest number of indications at BOC-23. Reporting the maximum predicted voltage is not required by GL 95-05, but it is arbitrarily chosen to be the voltage where the integration of the upper tail of the voltage distribution reaches a 0.3 fractional indication.

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WESTINGHOUSE PROPRIETARY CLASS 6-3 Table 6-1 Predicted Voltage Distribution at EOC-23 SG-A Number of Indications SG-B Number of Indications SG-C Number of Indications Volt Bins Measured Input Predicted Measured Input Predicted Measured Input Predicted EOC-22 BOC-23 EOC-23 EOC-22 BOC-23 EOC-23 EOC-22 BOC-23 EOC-23 0.1 28 46.67 28.73 33 55.00 34.06 13 21.67 14.37 0.2 114 190.00 118.74 142 236.67 146.49 84 140.00 84.29 0.3 113 188.33 159.38 133 221.67 191.73 91 151.67 126.75 0.4 62 103.33 127.22 73 121.67 154.17 86 143.33 131.11 0.5 37 61.67 85.79 68 113.33 119.55 57 95.00 111.20 0.6 20 33.33 54.16 32 53.33 82.82 45 75.00 84.79 0.7 10 16.67 32.42 16 26.67 50.51 25 41.67 58.76 0.8 7 11.67 19.90 12 20.00 32.40 10 16.67 36.50 0.9 3 5.00 13.32 9 15.00 22.53 7 11.67 23.43 1.0 4 6.67 9.09 5 8.33 14.99 8 13.33 15.69 1.1 2 3.33 6.88 3 5.00 9.95 3 5.00 10.62 1.2 3 5.00 6.40 0 0.00 7.59 1 1.67 7.52 1.3 2 3.33 5.05 1 1.67 4.80 0 0.00 5.08 1.4 0 0.00 3.38 0 0.00 2.79 1 1.67 3.48 1.5 0 0.00 2.16 0 0.00 1.76 1 1.67 2.37 1.6 0 0.00 1.35 0 0.00 0.97 0 0.00 1.63 1.7 1 1.67 0.89 0 0.00 0.21 0 0.00 1.03 1.8 0 0.00 0.61 0 0.00 0.70 0 0.00 0.40 1.9 0 0.00 0.21 0 0.00 0.00 0 0.00 0.00 2.0 0 0.00 0.00 0 0.00 0.30 0 0.00 0.70 2.1 0 0.00 0.70 0 0.00 0.00 0 0.00 0.30 2.2 0 0.00 0.30 0 0.00 0.00 0 0.00 0.00 Total 406 677 677 527 879 879 432 721 721 SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 6-4 Cycle 23 SG A Predicted Voltage Distribution BOC23 Voltage Distribution EOC23 Voltage Distribution 240.00 220.00 200.00 Number of Indications 180.00 160.00 140.00 120.00 100.00 80.00 60.00 40.00 20.00 0.00 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 Voltage Bin Figure 6-1 SG-A Predicted Voltage Distribution at EOC-23 SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 6-5 Cycle 23 SG B Predicted Voltage Distribution BOC23 Voltage Distribution EOC23 Voltage Distribution 240.00 220.00 200.00 180.00 Number of Indications 160.00 140.00 120.00 100.00 80.00 60.00 40.00 20.00 0.00 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 Voltage Bin Figure 6-2 SG-B Predicted Voltage Distribution at EOC-23 SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 6-6 Cycle 23 SG C Predicted Voltage Distribution BOC23 Voltage Distribution EOC23 Voltage Distribution 240.00 220.00 200.00 180.00 Number of Indications 160.00 140.00 120.00 100.00 80.00 60.00 40.00 20.00 0.00 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 Voltage Bin Figure 6-3 SG-C Predicted Voltage Distribution at EOC-23 SG-CDMP-21-31 August 2022 Revision 2

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 7-1 7 SLB LEAK RATE AND TUBE BURST PROBABILITY ANALYSES This section presents the results of the analyses carried out to predict leak rates and tube burst probabilities at the postulated SLB conditions using the actual voltage distributions from the 2R22 inspection (CM assessment) as well as for the projected EOC-23 voltage distributions (OA). The methodology used in these analyses is described in Section 6.

7.1 2R22 Condition Monitoring Leak Rate and Tube Burst Probability Analyses to calculate the 2R22 SLB leak rates and tube burst probabilities were performed using the actual bobbin voltage distributions presented in Table 3-2, Table 3-3 and Table 3-4. The results of the Monte Carlo calculations are summarized in Table 7-1, in addition to the 2R22 predictions from the EOC-21 OA performed in Reference 2. As evident from the results in Table 7-1, the methodology utilized for the OA is conservative in the prediction of the number and size of indications by the end of the following operating cycle. As a result, the OA produces conservative results for leak rate and burst probability by the end of the next operating cycle.

The SLB leak rates and tube burst probabilities, calculated using the actual measured 2R22 voltage distributions using 1,000,000 Monte Carlo trials, are shown in Table 7-1. The methodology used for these calculations is documented in WCAP-14277, Revision 1. The probability of leak, leak rate, and burst pressure correlations for 7/8-inch tubes presented in the latest addendum to the EPRI Alternate Repair Criteria (ARC) Database, Reference 4, were used. The SLB primary-to-secondary pressure differential applied in the analysis is 2,560 psi. The maximum 2R22 leak rate of 0.064 gpm and the maximum conditional burst probability of 1.70 x 10-5 are well below their respective allowable limits (8.2 gpm per Reference 17, and 1.0 x 10-2 per Reference 1, respectively). Therefore, the CM performance criteria are satisfied.

7.2 Cycle 23 Operational Assessment Leak Rate and Tube Burst Probability The SLB leak rate and tube burst probability projection for the Cycle 23 OA was carried out using the latest update to the ARC database documented in Reference 4, the POD of 0.60, and 1,000,000 Monte Carlo trials. The EOC-22 leak and burst analyses were performed using a primary-to-secondary pressure differential of 2,560 psi, even though it is likely that PORV actuation will occur prior to the pressurizer safety relief valve lift setting.

The EOC-23 projections, considering a 526 EFPD operation cycle and using POD = 0.6 are shown in Table 7-2. Both the maximum projected EOC-23 leak rate of 0.229 gpm and the maximum conditional burst probability of 3.95 x 10-5 are well below their respective allowable limits (8.2 gpm and 1.0 x 10-2, respectively). Therefore, the OA performance criteria for the DSI indications are satisfied for Cycle 23.

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WESTINGHOUSE NON-PROPRIETARY CLASS 3 7-2 Table 7-1 Condition Monitoring Leak and Burst Results for 2R22(1)

OA Performed OA Performed at EOC-21 EOC-22 Actual at EOC-21 EOC-22 Actual Predicted Predicted Actual Predicted Actual SLB Leak Probability SLB Leak Actual Number of Predicted Number of Actual Rate at of Burst at Rate at Probability of Indications Max. Indications Max. 95/95 95% 95/95 Burst at 95%

SG at EOC-22 Voltage at EOC-22 Voltage (gpm) Confidence (gpm) Confidence A 649 2.20 406 1.68 0.175 2.67 x 10-5 0.045 1.70 x 10-5 B 825 2.00 527 1.22 0.207 3.26 x 10-5 0.048 0.78 x 10-5 C 679 2.10 432 1.43 0.191 3.61 x 10-5 0.064 1.44 x 10-5 Note:

(1) For conservatism, all DSIs indications that were deplugged during 2R22 in SG-A and SG-B were included in the condition monitoring analysis Table 7-2 Operational Assessment Leak and Burst Results for EOC-23 (POD = 0.6)

Growth Rate Number of SLB Leak Rate Probability of Maximum Volts Used in Indications at at 95/95 Burst at 95%

SG at EOC-23 Projection EOC-23 (gpm) Confidence SG-A(1) Cycle 22 Bound 677 2.2 0.171 3.38 x 10-5 SG-B Cycle 22 Bound 879 2.0 0.201 3.26 x 10-5 SG-C Cycle 22 Bound 720 2.1 0.229 3.95 x 10-5 Note:

(1) This OA analysis was re-run for no plugged tubes. It was previously incorrectly run with one tube plugged in the 0.3 volt bin in Reference 16.

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- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 8-1 8 REFERENCES

1. NRC Generic Letter 95-05, Voltage-Based Repair Criteria for Westinghouse Steam Generator Tubes Affected by Outside Diameter Stress Corrosion Cracking, USNRC Office of Nuclear Reactor Regulation, August 3, 1995.

2. Westinghouse Report SG-SGMP-20-15, Revision 3, Beaver Valley Unit 2 Refueling Outage 21 Generic Letter 95-05 Voltage-Based Alternate Repair Criteria Final Report, January 2021.

3. Westinghouse Report WCAP-14277, Revision 1, SLB Leak Rate and Tube Burst Probability Analysis Methods for ODSCC at TSP Intersections, Westinghouse Nuclear Services Division, December 1996.

4. EPRI Report 1018047, Addendum 7 to NP-7480-L Database, Steam Generator Tubing Outside Diameter Stress Corrosion Cracking at Tube Support Plates Database for Alternate Repair Limits, September 2008.

5. Letter from A. Marion, Nuclear Energy Research Institute, to B. Sheron, Nuclear Regulatory Commission, Refining the Leak Rate Sampling Methodology for ODSCC ARC Applications (Generic Letter 95-05), March 15, 2002.

6. Letter from W. Bateman, Nuclear Regulatory Commission, to A. Marion, Nuclear Energy Research Institute, Refining the Leak Rate Sampling Methodology for Generic Letter 95-05 Voltage-Based Alternate Repair Criteria Application, March 27, 2002.

7. Westinghouse Letter DLC-96-184, Revision 0, Duquesne Light Company Beaver Valley Power Station Unit 2 Steam Generator LOCA Plus SSE Loads, June 1996.

8. Letter from B.W. Sheron, Nuclear Regulatory Commission, to A. Marion, Nuclear Energy Research Institute, February 9, 1996.

9. Westinghouse Letter LTR-CDME-08-167, Revision 0, Software Release Letter for CycleSim Version 3.2, July 2008.

10. Westinghouse Report SG-SGDA-05-1, Revision 1, Beaver Valley Unit 1 Cycle 17 Voltage-Based Repair Criteria 90-Day Report, January 2005.

11. Not Used.

12. Beaver Valley Power Station Unit 2, Updated Final Safety Analysis Report, Revision 23.

13. FENOC Procedure ISIE1-8, Revision 18, Beaver Valley Power Station Unit 2 Steam Generator Examination Guidelines, October 8, 2018.

14. Steam Generator Management Program: Pressurized Water Reactor Steam Generator Examination Guidelines, Revision 8. EPRI, Palo Alto, CA: 2016. 3002007572.

SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 8-2

15. Westinghouse Letter LTR-CDMP-20-12, Revision 0, Beaver Valley Unit 2 0.630 Wide Groove Bobbin Probe Evaluation, April 2020.

16. Westinghouse Letter LTR-CDMP-21-55, Revision 1, Beaver Valley Unit 2 Refueling Outage 22 Steam Generator Alternate Repair Criteria Generic Letter 95-05 Return to Power Report, November 2021.

17. U.S. NRC letter to Energy Harbor Nuclear Corp., BEAVER VALLEY POWER STATION, UNITS 1 AND 2 - ISSUANCE OF AMENDMENT NOS. 305 AND 195 TO MODIFY PRIMARY AND SECONDARY COOLANT ACTIVITY TECHNICAL SPECIFICATIONS (EPID L-2019-LLA-0223), September 2020.

18. U.S. NRC letter to Energy Harbor Nuclear Corp., BEAVER VALLEY POWER STATION, UNITS 1 AND 2 - CORRECTION TO AMENDMENT NOS. 305 AND 195 ISSUED SEPTEMBER 23, 2020, RE: MODIFICATION OF PRIMARY AND SECONDARY COOLANT ACTIVITY TECHNICAL SPECIFICATIONS (EPID L-2019-LLA-0223),

October 2020.

SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-1 APPENDIX A Table A-1 SG-A 2R22 DSI Indications Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 23 19 0.99 05H SAI 2 24 0.29 07H 2 88 0.2 02H 2 92 0.29 03H 2 93 0.47 03H 3 15 0.54 03H 3 59 0.62 02H NDF 3 63 0.38 05C 3 64 0.48 05C 3 65 0.5 07C 3 65 0.61 07H 3 77 0.49 08H SAI 3 79 0.35 07H 3 81 0.65 03H 3 84 0.74 03H 3 85 0.66 04H 3 92 0.34 02H 4 9 0.43 03H 4 9 0.31 04H 4 18 0.17 05H 4 21 0.44 03H 4 24 0.35 02H 4 26 0.24 02H 4 28 0.3 03H 4 34 0.33 03H 4 39 0.08 02H 4 50 0.18 02H 4 50 0.37 03H 4 50 0.45 04H 4 54 0.57 02H 4 54 0.21 04H 4 54 0.36 05H 4 60 0.33 02H NDF 4 60 0.36 06H NDF 4 63 0.21 02H 4 70 0.16 03H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-2 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 4 78 0.22 05H 4 80 0.32 08C 4 85 0.12 08C 4 86 0.16 03H 5 10 1 02H NDF 5 10 0.54 03H 5 10 0.47 04H 5 11 0.21 04H 5 18 0.6 06H SAI 5 20 0.21 08C 5 24 0.26 07H 5 25 0.51 05H 5 26 0.72 02H 5 26 0.61 03H 5 29 1.19 02H SAI 5 30 0.23 03H 5 53 0.11 02H 5 57 0.15 04H 5 60 0.17 04H 5 80 0.18 05H 5 82 0.28 03H 6 15 0.39 02H 6 20 0.36 04H 6 27 0.55 06H 6 32 0.25 02H 6 34 0.35 02H 6 35 1.01 02H SAI 6 35 0.36 03H 6 35 0.52 04H 6 35 0.33 05H 6 35 0.04 08H 6 40 0.19 03H 6 40 0.28 04H 6 41 0.21 08H SAI 6 43 0.23 02H 7 4 0.27 04H SAI 7 14 0.28 03H 7 18 1.68 02H NDF 7 18 1.29 03H NDF SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-3 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 7 18 0.38 05H 7 19 0.44 02H 7 19 1.28 03H NDF 7 27 0.41 05H 7 49 0.14 02H 7 51 0.17 02H 7 51 0.38 05H 7 94 0.22 02H 8 16 0.18 05H 8 19 0.45 02H 8 28 0.28 02H NDF 8 29 0.24 02H 8 32 0.35 03H 8 32 0.82 05H SAI 8 34 0.77 03H 8 35 0.18 04H SAI NDF 8 35 0.18 05H SAI 8 42 0.15 02H 8 65 0.32 03H 8 67 0.31 02H 8 69 0.34 02H 8 76 0.15 05H 8 85 0.06 02H 8 89 0.24 05H 8 91 0.44 04H 8 93 0.46 03H 9 7 0.22 02H SAI 9 10 1.13 02H NDF 9 13 0.21 02H 9 14 0.17 03H 9 16 0.45 02H 9 16 0.74 03H 9 16 0.53 04H 9 18 0.28 05H 9 34 0.19 02H SAI 9 35 0.3 02H 9 38 0.44 05H 9 40 0.37 03H 9 51 0.46 04H SAI SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-4 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 9 56 0.2 02H 9 56 0.21 04H 9 57 0.22 02H 9 57 0.27 03H 9 74 0.21 03H 10 7 0.29 02H 10 7 0.28 03H 10 8 0.28 03H 10 19 0.31 04H 10 34 0.92 04H SAI 10 37 0.14 03H 10 38 0.12 04H 10 58 0.12 04H 10 76 0.44 05H 11 2 0.56 03H 11 48 1.16 02H NDF 11 48 0.43 08H 11 77 0.35 05H 11 78 0.18 05H 11 78 0.16 06H 12 16 0.72 02H SAI NDF 12 34 0.33 02H 12 48 0.22 05H 12 62 0.27 07C 12 69 0.4 02H 12 69 0.24 03H 12 70 0.25 03H 12 72 0.24 02H 12 73 0.19 05H 12 74 0.49 02H 12 74 0.47 03H 12 80 0.14 05H 13 32 0.09 02H 13 49 0.06 04H 13 60 0.36 02H 13 65 0.12 06C 13 67 0.31 06C 13 71 0.23 04H 13 80 0.42 03H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-5 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 13 84 0.48 02H 13 85 0.34 02H 13 86 0.25 03H 13 91 0.19 05C 13 91 0.69 05H 13 92 0.46 04H 14 15 0.1 04H 14 20 0.15 03H 14 25 0.25 05H 14 27 0.15 05H 14 31 0.1 02H 14 31 0.13 05H 14 40 0.21 05H SAI 14 46 0.35 02H 14 47 0.18 02H NDF 14 47 0.18 04H 14 48 0.47 05H 14 50 0.19 03H 14 53 0.08 02H 14 54 0.26 02H 14 58 0.55 02H 14 59 0.22 02H 14 59 0.17 03H NDF 14 59 0.5 06H 14 65 0.25 03H 14 68 0.26 02H 14 70 0.51 02H 14 70 0.78 03H 14 71 0.1 02H 14 71 0.21 03H 14 71 0.12 04H 14 72 0.1 06H 14 77 0.15 02H 14 80 0.2 03H 14 86 0.3 04H 15 27 0.12 05H NDF 15 31 0.28 04H SAI NDF 15 63 0.12 02H 15 67 0.23 02H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-6 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 15 67 0.21 03H 15 71 0.1 02H 15 72 0.17 02H 15 73 0.58 03H 15 73 0.2 05H 15 74 0.37 03H 15 75 0.62 02H 15 75 0.19 07H 15 75 0.44 08H SAI 16 11 0.21 05H SAI NDF 16 50 0.28 05C 16 52 0.54 02H 16 53 0.21 03H 16 60 0.25 02H 16 62 0.05 08H 16 66 0.21 03H 16 70 0.13 03H 16 72 0.14 02H 16 76 0.22 02H 16 77 0.14 05H 17 10 0.34 03H 17 27 0.13 04H 17 32 0.26 05H 17 54 0.19 03H 17 59 0.28 02H 17 59 0.2 05H 17 76 0.45 02H 17 81 0.13 03H 17 81 0.12 04H 17 84 0.11 03H 18 7 0.33 04H 18 10 0.55 03H 18 10 0.24 04H 18 14 0.39 04H 18 27 0.12 07H 18 30 0.06 04H 18 47 0.16 02H 18 47 0.4 05H 18 48 0.21 02H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-7 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 18 57 0.52 02H 18 58 0.55 02H 18 88 0.1 05H 19 7 0.42 02H NDF 19 7 0.31 03H SAI 19 8 0.27 03H 19 15 0.17 03H 19 15 0.16 04H 19 56 0.38 03H 19 57 0.45 02H 19 57 0.24 04H 19 60 0.2 02H 20 7 0.22 08C 20 9 0.15 03H 20 10 0.25 04H 20 12 0.1 02H 20 22 0.75 02H 20 22 0.26 03H 20 22 0.37 08H 20 44 0.12 02H 20 57 0.13 02H 20 62 0.31 05H 20 75 0.26 05H 20 78 0.16 04H 20 85 0.24 03H 21 18 0.55 04H 21 25 0.14 03H 21 26 0.44 05H 21 34 0.42 02H 21 43 0.29 02H 21 46 0.12 02H 21 48 0.58 04H 21 55 0.06 02H 21 61 0.28 08H 21 72 0.21 03H 21 73 0.33 03H 21 78 0.19 08H 21 87 0.11 08C 22 7 0.29 02H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-8 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 22 21 0.26 02H 22 21 0.37 03H 22 23 0.29 02H 22 24 0.29 02H 22 25 0.41 02H 23 11 0.34 02H 23 11 0.15 03H 23 19 0.47 02H 23 20 0.23 02H 23 21 0.13 03H 23 52 0.24 03H 23 53 0.18 02H SAI 23 53 0.23 04H 23 87 0.46 04H 24 16 0.68 02H 24 16 0.08 03H 24 23 0.67 05H 24 24 0.19 02H 24 33 0.19 03H 24 39 0.21 02H 24 52 0.21 02H 24 63 0.34 05H 24 80 0.14 03H 25 16 0.48 04H 25 21 0.08 02H 25 22 0.25 02H 25 30 0.38 04H 25 30 0.12 06H 25 50 0.13 08H 26 15 0.13 03H 26 19 0.1 04H 26 42 0.15 02H 26 64 0.13 02H 26 80 0.1 05H 27 32 0.15 02H 27 33 0.4 03H 27 34 0.19 04H 27 34 0.15 05H 27 42 0.22 04H SAI SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-9 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 27 42 0.12 05H 27 47 0.37 02H 27 55 0.19 03H 27 55 0.16 04H 27 64 0.09 02H 27 75 0.26 05H 28 13 0.36 03H 28 26 0.81 04H 28 41 0.27 02H 28 42 0.35 03H 28 45 0.43 02H 28 46 0.13 03H 28 54 0.26 02H 28 56 0.53 03H 28 66 0.26 04H SAI 29 24 0.26 02H 29 24 0.22 04H 29 30 0.38 05H 29 48 0.16 04H 29 54 0.28 03H SAI 29 65 0.05 02H 29 81 0.24 05H 30 22 0.22 02H 30 28 0.2 03H 30 38 0.19 02H 30 48 0.37 04H 30 48 0.14 06H 30 50 0.15 05C 30 51 0.3 08C 30 54 0.16 04H 30 58 0.09 04H 30 63 0.16 08H 30 68 0.22 02H 31 14 0.34 04H 31 18 0.62 02H 31 18 0.37 03H 31 18 0.36 07H 31 74 0.38 02H SAI 32 22 0.17 02H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-10 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 32 27 0.2 03H 32 35 0.1 06H 32 38 0.16 02H 32 38 0.2 03H 32 45 0.28 02H NDF 32 51 0.16 05H 32 53 0.23 03H 32 59 0.26 05H 33 18 0.1 02H 33 18 0.28 03H 33 22 0.27 02H 33 27 0.29 06H 33 42 0.22 05H 33 45 0.33 07H 33 54 0.23 06H 33 57 0.27 04H 33 66 0.21 02H 33 70 0.08 05H 34 24 0.12 03H 34 40 0.15 03H 34 52 0.09 02H 34 53 0.22 02H 34 56 0.32 05H 35 45 0.9 02H 36 23 0.2 08C 36 28 0.25 03H 36 28 0.13 04H 36 44 0.19 03H 36 46 0.26 06H 36 56 0.17 07C 37 30 0.17 08H 37 39 0.18 02H 37 39 0.29 03H 37 42 0.31 03H 37 48 0.18 04H 37 54 0.16 05H 37 56 0.2 02H 37 56 0.46 03H 38 40 0.55 05H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-11 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 38 44 0.22 02H 39 23 1.1 02H NDF 39 42 0.31 02H 39 46 0.39 02H 39 47 0.35 02H 39 50 0.19 04H 40 29 0.18 02H 40 37 0.94 03H 40 44 0.14 06C 41 27 0.23 03H 42 64 0.33 04H 44 35 0.23 03H 44 40 0.18 05C 44 58 0.06 06H 45 48 0.19 08C 46 52 0.28 06H 23 25 0.29 03H Deplugged 34 60 0.19 02H Deplugged 35 36 0.24 03H Deplugged SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-12 Table A-2 SG-B 2R22 DSI Indications Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 30 48 0.98 04H SAI 1 43 0.48 02H 1 52 0.23 02H 1 56 0.18 02H NDF 1 57 0.29 04H 1 81 0.19 02H 2 15 1.22 02H NDF 2 15 0.67 03H SAI 2 28 0.21 02H 2 33 0.14 03H 2 54 0.11 04H 2 63 0.17 04H 2 65 0.43 03H 2 67 0.22 06H 2 69 0.09 05H 2 70 0.71 05H 2 73 0.16 04H 2 73 0.16 05H 2 73 0.42 03H 2 75 0.11 02H 2 94 0.23 04H 3 31 0.66 02H 3 32 0.29 03H 3 43 0.47 02H SAI 3 49 0.57 04C 3 54 0.43 02H 3 55 0.19 04H 3 55 0.86 02H 3 58 0.23 03H 3 60 0.47 02H 3 60 0.49 03H 3 61 0.27 06H 3 62 0.15 04H 3 62 0.39 03H 3 63 0.42 02H 3 63 0.5 03H 3 65 0.69 03H SAI SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-13 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 3 72 0.36 03H 3 88 0.38 04H 3 89 0.36 04H 4 23 0.29 06H 4 23 0.37 02H 4 29 0.48 02H 4 32 0.24 03H 4 36 0.69 04H SAI 4 41 0.13 04H 4 41 0.32 02H 4 43 0.19 02H 4 44 0.18 02H 4 48 0.63 03H NDF 4 51 0.48 05C 4 52 0.56 03H 4 54 0.9 02H 4 56 0.32 04H 4 57 0.26 02H 4 57 0.29 04H 4 58 0.56 02H 4 58 0.4 02C NDF 4 59 0.5 03H NDF 4 59 0.47 02H NDF 4 62 0.21 03H 4 62 0.27 07H 4 63 0.28 04H 4 68 0.29 02H 4 88 0.3 04H NDF 5 10 0.4 02H 5 12 0.16 03H 5 14 0.38 03H 5 20 0.36 03H 5 22 0.32 04H 5 28 0.45 02H 5 33 0.29 02H 5 52 0.85 02H 5 54 0.72 02H 5 54 0.54 07C 5 54 0.19 03H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-14 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 5 56 0.38 03H 5 58 0.17 02H 5 60 0.24 02H 5 62 0.3 03H 5 63 0.19 04H 5 64 0.39 02H 5 64 0.15 03H 5 68 0.33 02H 5 70 0.92 05H 5 71 0.37 02H 5 71 0.34 06C 5 73 0.23 02H 5 73 0.28 04H 5 75 0.34 04H 5 75 0.13 03H 5 81 0.12 05H 5 92 0.22 02H 5 93 0.39 03H 6 16 0.13 03H 6 23 0.19 04H 6 25 0.28 03H 6 26 0.19 02H 6 27 0.23 03H SAI 6 43 0.39 03H 6 52 0.11 02H 6 53 0.25 03H 6 53 0.41 02H 6 58 0.22 03H 6 58 0.46 02H 6 61 0.19 08H 6 63 0.15 02H 6 66 0.11 05H 6 66 0.77 03H 6 70 0.75 05H 7 52 0.56 02H 7 54 0.12 02H 7 56 1.09 02H NDF 7 56 0.23 06C 7 63 0.28 07H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-15 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 7 64 0.28 04H 7 70 0.36 04H 7 70 0.22 05H 7 75 0.08 02H 8 2 0.16 03H 8 9 0.27 03H 8 9 0.36 02H 8 18 0.3 02H 8 18 0.24 03H 8 20 0.33 02H 8 22 0.62 02H 8 31 0.31 07C 8 37 0.22 03H 8 53 0.86 02H NDF 8 56 0.38 03H 8 57 0.2 08H 8 59 0.2 02H 8 59 0.14 05H 8 63 0.28 04H 9 4 0.42 03H SAI 9 5 0.14 03H 9 8 0.17 03H 9 11 0.83 02H 9 11 0.53 03H 9 16 0.13 03H 9 17 0.34 02H 9 17 0.28 03H 9 18 0.12 02H NDF 9 18 0.5 03H 9 26 0.58 03H 9 26 0.15 02H 9 52 0.17 02H 9 52 0.24 03H 9 59 0.36 03H 9 59 0.38 05H 9 61 0.42 07C 9 64 0.32 04H SAI 9 70 0.14 03H 9 70 0.46 05H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-16 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 9 72 0.32 04H 9 77 0.17 04H 9 80 0.79 02H 9 85 0.38 02H 9 92 0.44 02H 9 93 0.51 02H 10 6 0.76 02H 10 10 0.06 02H 10 14 0.3 02H 10 15 0.27 02H 10 17 0.83 02H 10 18 0.25 02H 10 26 0.19 02H 10 26 0.21 05H 10 37 0.3 03H 10 41 0.1 07H 10 50 0.24 02H 10 50 0.16 03H 10 50 0.37 04H 10 52 0.26 04H 10 52 0.46 02H 10 53 0.75 02H 10 54 0.1 02H 10 56 0.34 02H 10 58 0.11 05H 10 63 0.24 02H 10 71 0.43 05H 10 71 0.22 02H 10 76 0.25 03H SAI 10 78 0.61 04H 10 80 0.29 03H 10 82 0.18 03H 10 88 0.1 04C 10 89 0.29 02H 11 8 0.13 04H 11 8 0.44 03H 11 9 0.44 07H 11 9 0.12 06H 11 18 0.37 02H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-17 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 11 20 0.4 02H 11 21 0.21 03H 11 25 0.34 03H SAI 11 35 0.1 02H 11 42 0.12 03H 11 51 0.07 02H 11 53 0.48 02H 11 53 0.31 08C 11 57 0.19 03H 11 58 0.32 03H 11 58 0.22 04H 11 61 0.88 02H 11 61 0.39 03H 11 64 0.59 03H 11 75 0.2 03H 11 75 0.4 02H NDF 11 83 0.26 04H 11 83 0.33 03H 11 91 0.42 08H 12 10 0.45 02H 12 15 0.5 03H 12 15 0.42 02H 12 16 0.2 03H 12 22 0.56 02H 12 24 0.33 02H 12 24 0.34 04H 12 51 0.12 02H 12 52 0.57 03H 12 52 0.69 02H 12 61 0.27 03H 13 37 0.24 03H 13 39 0.13 07H 13 47 0.3 02H SAI 13 53 0.48 02H 13 56 0.22 03H 13 71 0.23 05C 13 73 0.34 02H 13 77 0.77 03H 13 78 0.05 02H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-18 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 13 85 0.3 02H 13 86 0.13 02H 13 91 0.33 02H 14 13 0.22 02H 14 15 0.2 03H 14 18 0.42 02H 14 25 0.3 02H 14 27 0.13 03H 14 28 0.11 05H 14 32 0.23 02H 14 35 0.28 06H 14 36 0.23 03H 14 39 0.06 02H 14 54 0.2 03H 14 54 0.3 02H 14 57 0.39 03H 14 57 0.41 02H 14 61 0.55 03H 14 61 0.44 02H 14 61 0.31 05H 14 63 0.23 03H 14 70 0.5 02H 14 80 0.23 03H 14 83 0.31 03C NDF 14 84 0.13 04H 14 88 0.16 02H 15 12 0.1 03H 15 21 0.07 03H 15 26 0.12 07H 15 26 0.39 03H 15 27 0.13 02H 15 36 0.17 02H 15 43 0.22 06H 15 49 0.59 04H 15 52 0.19 02H 15 71 0.2 05H 15 75 0.11 02H 15 75 0.22 04H 15 80 0.33 04H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-19 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 15 87 0.19 02H 15 89 0.31 02H 16 27 0.12 03H 16 29 0.13 02H SAI NDF 16 31 0.23 07H 16 31 0.18 02H 16 36 0.13 04H 16 37 0.17 02H 16 37 0.29 04H SAI 16 44 0.18 02H 16 55 0.3 04H 16 55 0.23 05H 16 57 0.09 03H 16 61 0.26 02H 16 68 0.39 03H SAI 16 71 0.17 02H 17 35 0.38 03H 17 40 0.36 03H SAI 17 42 0.41 04H 17 42 0.58 03H 17 43 0.25 04H 17 44 0.6 02H SAI 17 62 0.41 05H 17 64 0.1 02H 17 68 0.97 04H SAI 17 68 0.46 03H 17 68 0.41 02H 17 83 0.21 06C 17 88 0.22 07C 18 12 0.17 03H 18 18 0.21 02H 18 28 0.72 04H 18 29 0.57 02H 18 30 0.22 04H 18 36 0.78 03H 18 37 0.2 03H 18 38 0.34 03H 18 40 0.28 02H 18 42 0.3 02H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-20 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 18 53 0.38 03H 18 53 0.25 04H 18 54 0.66 02H 18 57 0.21 03H 18 58 0.43 02H 18 61 0.09 03H 18 64 0.94 03H 18 69 0.21 05H 18 69 0.07 04H 18 74 0.24 02H 18 76 0.29 03H 18 76 0.23 05H 19 15 0.05 04H 19 15 0.17 02H 19 29 0.86 03H 19 29 0.64 02H 19 30 0.45 03H SAI 19 33 0.47 02H 19 34 0.43 02H SAI 19 36 0.54 02H 19 39 0.2 04H 19 39 0.39 03H 19 40 0.37 03H 19 45 0.31 02H 19 50 0.45 03H 19 51 0.31 02H 19 51 0.57 03H 19 69 0.51 02H 19 71 0.28 05H 19 74 0.14 02H 19 76 0.15 02H 19 78 0.08 02H 19 85 0.2 02H 20 11 0.63 02H 20 16 0.28 03H 20 19 0.05 04H 20 20 0.27 04H 20 20 0.22 03H 20 23 0.14 02H SAI SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-21 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 20 36 0.29 08H 20 70 0.15 02H 20 78 0.21 04H 20 81 0.36 02H 20 89 0.43 02H 21 10 0.37 03H 21 18 0.13 04H 21 29 0.44 03H 21 32 0.45 03H 21 45 0.27 04H 21 53 0.45 03H 21 53 0.28 05H 21 54 0.67 02H 21 75 0.2 02H 21 85 0.44 02H 22 18 1 03H SAI 22 36 0.14 03H 22 52 0.17 03H 22 52 0.1 02H 22 53 0.13 02H 22 61 0.2 05H 22 62 0.26 03H 22 64 0.14 02H 23 33 0.2 03H 23 37 0.52 04H SAI 23 56 0.27 02H 23 61 0.22 02H 23 63 0.2 05H 23 63 0.14 03H 23 67 0.22 05H 23 86 0.12 02H 24 29 0.12 05H 24 30 0.23 03H 24 32 0.32 03H 24 42 0.44 02H 24 51 0.13 08H 24 52 0.3 02H 24 56 0.06 02H 24 58 0.24 03H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-22 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 24 62 0.4 03H 24 63 0.5 03H 24 65 0.08 02H 24 68 0.13 08H 24 71 0.21 05H 24 79 0.12 07H 24 84 0.43 05H 25 17 0.08 02H 25 18 0.22 05C 25 24 0.43 03H 25 29 0.14 02H 25 38 0.13 04H 25 64 0.45 06H 25 79 0.49 08H 26 30 0.62 03H 26 39 0.08 03H 26 78 0.12 02H 27 17 0.11 05H 27 28 0.33 03H 27 46 0.15 06H 27 52 0.28 04H 27 53 0.16 03H 27 68 0.2 02H 28 41 0.16 02H 28 59 0.56 04H 28 63 0.14 03H 28 67 0.29 03H 28 81 0.15 02H 29 20 0.28 03H 29 27 0.47 03H 29 27 0.24 02H 29 31 0.25 05H 29 32 0.17 05H 29 32 0.12 03H 29 34 0.27 03H 29 35 0.18 04H SAI NDF 29 37 0.14 03H 29 38 0.28 02H MAI 29 40 0.64 03H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-23 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 29 41 0.17 02H 29 56 0.89 02H 30 16 0.12 04H 30 16 0.11 07H 30 20 0.27 04H NDF 30 27 0.17 02H 30 32 0.25 03H 30 50 0.27 04H 30 55 0.15 03H 30 56 0.46 04H 30 59 0.2 04H 30 78 0.15 02H 30 78 0.24 04H 30 79 0.16 02H 30 81 0.13 03H 31 21 0.42 07H 31 23 0.58 02H 31 32 0.34 03H 31 32 0.4 05H 31 37 0.39 03H 31 39 0.25 03H 31 39 0.09 02H 31 48 0.51 02H 31 52 0.16 02H 31 64 0.09 02H 31 71 0.12 05H 31 75 0.23 04H 31 76 0.26 02H 31 78 0.3 03H 31 78 0.39 02H 32 16 0.14 08H 32 29 0.19 05H 32 31 0.13 02H SAI 32 53 0.51 02H 32 55 0.17 05H 32 55 0.29 02H 32 61 0.41 05H 32 61 0.26 02H 32 77 0.35 02H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-24 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 33 29 0.04 02H 33 31 0.04 06H 33 31 0.19 07H 33 32 0.47 02H 33 37 0.18 04H 33 44 0.22 02H 33 60 0.09 03H 33 62 0.55 02H 33 73 0.53 07H 34 16 0.12 08H 34 18 0.28 08H 34 32 0.32 02H 34 35 0.13 03H 34 37 0.24 03H 34 48 0.49 02H 34 48 0.19 04H 34 48 0.29 03H 34 51 0.4 03H 34 51 0.57 02H 34 57 0.28 02H 35 40 0.1 02H 36 25 0.16 05H 36 42 0.15 03H 36 58 0.11 05H 36 64 0.06 02H 37 24 0.11 05H 37 32 0.6 03H 37 57 0.14 05H 37 57 0.21 02H 38 35 0.13 02H 38 63 0.09 03H 39 31 0.15 05H 39 33 0.11 03H 40 31 0.1 05H 40 42 0.58 02H 41 31 0.24 05H 41 52 0.17 08C 41 68 0.29 04H 42 51 0.11 04H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-25 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 44 48 0.25 02H 44 53 0.43 05H 45 36 0.67 08H 45 37 0.47 08H 6 31 0.58 03H Deplugged 6 38 0.45 02H Deplugged 10 32 0.67 03H Deplugged 11 23 0.5 02H Deplugged 16 12 0.36 04H Deplugged 16 14 0.55 03H Deplugged 17 26 0.8 03H Deplugged 17 31 1.02 03H Deplugged 17 31 0.28 02H Deplugged 17 32 0.79 02H Deplugged 17 32 0.3 03H Deplugged 17 45 0.5 02H Deplugged 18 25 0.56 02H Deplugged 18 25 0.29 03H Deplugged 18 41 1.1 02H Deplugged 20 27 0.49 04H Deplugged 20 27 0.19 02H Deplugged 29 57 0.5 02H Deplugged SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-26 Table A-3 SG-C 2R22 DSI Indications Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 24 62 0.98 05H 3 45 0.65 02H NDF 3 58 0.48 02H 3 60 0.33 02H 3 64 0.21 02H 3 80 0.63 02H 4 11 0.26 02H 4 33 0.72 02H SAI 4 48 0.31 02H 5 7 0.29 02H NDF 5 18 0.46 02H 5 19 0.43 02H 5 29 0.51 02H 5 61 0.4 02H 5 62 0.39 02H 5 71 0.28 02H 5 89 0.55 02H 6 23 0.14 02H 6 30 0.32 02H 6 55 0.35 02H 6 63 0.38 02H 7 49 0.44 02H 7 58 1.03 02H 7 67 0.35 02H 8 23 0.46 02H 8 24 0.37 02H 9 30 0.36 02H 9 32 0.49 02H 9 35 0.44 02H 9 37 0.51 02H 9 41 0.29 02H 9 47 0.42 02H 9 54 0.9 02H 10 8 0.54 02H 10 10 0.63 02H 10 36 0.41 02H 10 37 0.69 02H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-27 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 10 43 0.19 02H 10 44 0.37 02H 10 51 1.11 02H 10 54 0.82 02H 10 72 0.4 02H NDF 11 7 0.48 02H 11 17 0.82 02H 11 36 0.44 02H 11 49 0.55 02H 12 9 0.35 02H 12 30 0.17 02H 12 55 0.27 02H 12 70 0.46 02H 13 32 0.15 02H 13 35 1.43 02H SAI 13 43 0.2 02H 13 63 0.18 02H 13 64 0.74 02H 14 38 0.31 02H 14 50 0.48 02H 14 54 0.54 02H 15 35 0.18 02H 15 39 0.38 02H 15 61 0.23 02H 15 62 0.17 02H 16 17 0.18 02H 16 46 0.61 02H 16 63 0.14 02H 16 73 0.22 02H 17 17 0.14 02H 17 18 0.32 02H 17 38 0.34 02H 17 48 0.68 02H 17 49 0.36 02H 17 61 0.74 02H 17 63 0.44 02H 17 66 0.38 02H 17 67 0.46 02H 17 68 0.36 02H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-28 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 18 48 0.6 02H 18 50 0.24 02H 18 51 0.56 02H 18 53 0.58 02H 18 54 0.39 02H 18 55 0.53 02H 18 62 0.33 02H 18 67 0.5 02H 19 29 0.28 02H 19 48 0.47 02H NDF 19 54 0.21 02H 19 79 0.93 02H 19 82 0.27 02H 20 75 0.63 02H 20 76 0.75 02H SAI 21 18 0.39 02H 21 62 0.33 02H 22 18 0.46 02H 22 20 0.87 02H 22 33 0.27 02H 23 10 0.28 02H 23 37 0.84 02H 23 39 0.16 02H 23 42 0.21 02H 23 77 0.41 02H 24 34 0.61 02H MAI 24 50 0.3 02H 24 57 0.18 02H 24 61 0.42 02H 24 79 1.08 02H SAI 25 31 0.62 02H 25 34 0.7 02H 25 54 0.13 02H 25 60 0.39 02H 25 61 0.56 02H 25 65 0.38 02H 25 74 0.3 02H SAI 25 76 0.68 02H 25 79 0.24 02H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-29 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 26 42 0.5 02H 27 20 0.65 02H 27 22 0.22 02H 27 31 0.62 02H 27 60 0.53 02H 27 69 0.52 02H 27 79 0.24 02H 28 35 0.94 02H 28 42 0.19 02H 28 44 0.4 02H 28 73 0.32 02H 28 85 0.55 02H 29 28 0.55 02H SAI 29 37 0.37 02H 29 47 0.22 02H 30 24 0.54 02H 30 41 0.13 02H 30 60 0.44 02H 30 61 0.8 02H 30 64 0.42 02H 31 22 0.2 02H 31 49 0.15 02H 31 60 0.19 02H 31 66 0.58 02H 31 75 0.3 02H SAI 31 81 0.99 02H 32 62 0.22 02H 32 65 0.48 02H SAI 32 66 0.53 02H 32 79 0.68 02H SAI 34 58 0.63 02H 34 59 0.54 02H 35 22 0.14 02H 36 53 0.49 02H SAI 41 63 0.53 02H 2 78 0.29 03H 2 80 0.23 03H 2 85 0.28 03H 3 18 0.26 03H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-30 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 3 60 0.59 03H 3 64 0.63 03H 4 26 0.63 03H NDF 4 49 0.44 03H 4 69 0.19 03H 4 76 0.23 03H 5 6 0.59 03H 5 7 0.91 03H 5 15 0.24 03H 5 19 0.21 03H 5 29 0.19 03H 5 66 0.43 03H 5 76 0.3 03H 6 30 0.27 03H 6 54 0.58 03H 6 78 1.09 03H 6 84 0.18 03H 6 87 0.25 03H 7 40 0.46 03H 7 49 0.35 03H 7 80 0.23 03H 8 43 0.23 03H 8 72 0.26 03H 8 84 0.24 03H 9 13 0.17 03H 9 26 0.18 03H 9 35 0.42 03H 9 38 0.32 03H 9 44 0.16 03H 10 9 0.22 03H 10 10 0.35 03H 10 24 0.24 03H 10 51 0.06 03H 10 54 0.36 03H 10 72 0.2 03H 10 78 0.13 03H 11 9 0.52 03H 11 62 0.45 03H 11 70 0.24 03H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-31 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 11 72 0.36 03H 12 70 0.33 03H 12 83 0.12 03H 13 7 0.39 03H 13 43 0.34 03H 13 59 0.06 03H 14 59 0.12 03H NDF 15 14 0.31 03H 15 35 0.5 03H 15 39 0.27 03H 15 80 0.22 03H NDF 15 87 0.4 03H 16 15 0.38 03H 16 34 0.36 03H 16 57 0.24 03H 17 26 0.23 03H 17 35 0.76 03H SAI 17 50 0.58 03H SAI 17 50 0.65 03H SAI 17 61 0.45 03H 18 5 0.38 03H 18 47 0.59 03H 18 48 0.74 03H 18 54 0.36 03H 18 56 0.3 03H 18 59 0.26 03H 18 62 0.62 03H 18 66 0.6 03H 18 67 0.5 03H 18 73 0.14 03H 19 26 0.28 03H 19 48 0.7 03H 20 76 0.81 03H 20 85 0.25 03H 21 18 0.42 03H 22 24 0.18 03H 22 61 0.21 03H 22 64 0.26 03H 22 77 0.28 03H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-32 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 23 28 0.53 03H 23 42 0.32 03H 23 69 0.16 03H 23 77 0.15 03H 24 11 0.28 03H 24 48 0.56 03H 24 56 0.32 03H 25 17 0.2 03H 25 34 0.48 03H 25 47 0.37 03H 26 65 0.32 03H 26 70 0.71 03H 27 29 0.68 03H SAI 27 33 0.69 03H SAI 27 76 0.17 03H 28 44 0.15 03H 28 50 0.23 03H 28 73 0.16 03H 29 29 0.98 03H 29 43 0.31 03H 30 12 0.18 03H 30 31 0.36 03H 30 60 0.65 03H 31 61 0.26 03H 31 62 0.62 03H 31 66 0.13 03H 31 69 0.31 03H 31 78 0.73 03H 31 81 0.38 03H 32 25 0.23 03H 32 63 0.51 03H SAI 34 55 0.93 03H 35 34 0.2 03H 36 20 0.34 03H 37 35 0.19 03H 40 25 0.1 03H 40 39 0.1 03H 3 8 0.41 04H 3 9 0.12 04H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-33 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 3 39 0.13 04H 3 93 0.39 04H 3 94 0.48 04H 4 3 0.14 04H 4 33 0.74 04H SAI 5 6 0.12 04H 5 15 0.89 04H SAI 6 63 0.38 04H 6 92 0.32 04H 7 40 0.43 04H 9 20 0.35 04H 9 54 0.3 04H 9 62 0.19 04H 9 74 0.31 04H 10 18 0.08 04H 10 76 0.2 04H 11 77 0.26 04H 12 35 0.1 04H 13 35 0.59 04H SAI 13 62 0.35 04H 14 29 0.23 04H SAI 14 59 0.16 04H 15 5 1.32 04H 15 38 0.44 04H SAI 16 46 0.25 04H 17 9 0.18 04H SAI 17 14 0.22 04H 17 24 0.1 04H 17 54 0.29 04H 18 47 0.47 04H 18 48 0.58 04H 18 61 0.39 04H 18 62 0.24 04H 19 47 0.53 04H SAI 19 57 0.58 04H 20 21 0.14 04H SAI 20 78 0.35 04H SAI 21 25 0.06 04H 22 75 0.3 04H SAI SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-34 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 24 34 0.3 04H 24 63 0.21 04H 25 26 0.1 04H 25 62 0.51 04H 25 63 0.4 04H 27 24 0.16 04H 28 42 0.19 04H 29 30 0.31 04H SAI 29 52 0.22 04H 30 25 0.13 04H 30 31 0.33 04H 30 60 0.33 04H 30 61 0.58 04H 30 62 0.26 04H 30 64 0.38 04H 30 65 0.53 04H 31 17 0.12 04H 31 29 0.38 04H 31 61 0.29 04H 31 64 0.45 04H 31 66 0.14 04H 31 72 0.57 04H 31 78 0.97 04H 32 63 0.32 04H 32 64 0.39 04H 33 61 0.25 04H 34 58 0.21 04H 35 34 0.18 04H 37 33 0.17 04H 39 27 0.32 04H 40 53 0.42 04H 41 27 0.21 04H 41 44 0.34 04H 42 32 0.18 04H 5 70 0.58 05C 3 35 0.26 05H 9 39 0.27 05H 9 45 0.45 05H 10 51 0.41 05H NDF SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-35 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 11 77 0.15 05H 11 88 0.6 05H 12 35 0.11 05H 13 35 0.39 05H 14 39 0.24 05H 19 57 0.46 05H 19 65 0.3 05H 22 18 0.35 05H 23 39 0.18 05H 25 34 0.43 05H 25 61 0.65 05H 25 65 0.54 05H 25 76 0.27 05H 26 38 0.14 05H 26 39 0.29 05H 28 27 0.39 05H 29 11 0.44 05H 29 26 0.17 05H 29 38 0.16 05H 29 48 0.27 05H 29 57 0.12 05H 29 63 0.24 05H 31 14 0.07 05H 31 66 0.18 05H 32 19 0.25 05H 32 78 0.39 05H 33 75 0.26 05H 34 39 0.19 05H 34 58 0.37 05H 35 26 0.44 05H 36 26 0.24 05H 36 27 0.2 05H 37 26 0.09 05H 38 42 0.22 05H 3 9 0.16 06H 3 90 0.33 06H 4 28 0.53 06H 8 63 0.17 06H 9 45 0.24 06H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-36 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 9 65 0.2 06H 14 59 0.11 06H 16 55 0.48 06H 18 15 0.16 06H 18 59 0.32 06H 19 89 0.17 06H 22 54 0.34 06H 25 71 0.47 06H 26 24 0.09 06H 26 44 0.31 06H 30 61 0.26 06H 31 77 0.14 06H 32 67 0.44 06H 33 34 0.33 06H 35 53 0.24 06H 37 52 0.12 06H 1 23 0.46 07C NDF 11 57 0.1 07C 3 12 0.21 07H 3 39 0.54 07H 4 39 0.4 07H 10 38 0.44 07H 21 67 0.23 07H 25 65 0.55 07H 33 60 0.29 07H 34 24 0.11 07H 35 22 0.18 07H 35 38 0.14 07H 7 12 0.35 08C 5 86 0.42 08H 8 2 0.42 08H 13 64 0.33 08H 14 70 0.51 08H 18 61 0.39 08H 19 29 0.34 08H 21 18 0.48 08H 24 34 0.42 08H 25 33 0.13 08H 25 47 0.28 08H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

WESTINGHOUSE NON-PROPRIETARY CLASS 3 A-37 Comments Row Col Volts Location SAI/MAI NDF PLUG/DEPLUG 26 28 0.15 08H 26 72 0.34 08H 28 70 0.19 08H 33 60 0.21 08H 41 50 0.12 08H SG-CDMP-21-31 August 2022 Revision 2

- - This record was final approved on 8/1/2022, 4:44:08 PM. (This statement was added by the PRIME system upon its validation)

v t e Letter Sequence Response to RAI
EPID:L-2022-LRO-0014, Steam Generator Inspection Report- Fall 2021 Refueling Outage (Approved, Closed)
Initiation Request Acceptance... Administration Questions 24 June 2022 Answers 22 August 2022 13 June 2023 Results Approval, Approval Other:
MONTHYEAR2022-06-24 [Table View]

L-22-188, Response to Request for Additional Information Regarding Steam Generator Inspection Report- Fall 2021 Refueling Outage

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Subject:

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Enclosure:

RAI 1

Response

Response

Response

Response

Response

RAI 2

Response

RAI 3

Response

RAI 4

Response

References:

SUMMARY

SUMMARY

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L-22-188, Response to Request for Additional Information Regarding Steam Generator Inspection Report- Fall 2021 Refueling Outage

Text

Subject:

Attachment:

Enclosure:

RAI 1

Response

Response

Response

Response

Response

RAI 2

Response

RAI 3

Response

RAI 4

Response

References:

SUMMARY

SUMMARY

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