ULNRC-06291, Supplement to Expedited Seismic Evaluation Process Report

Supplement to Expedited Seismic Evaluation Process Report

ML16189A300
Person / Time
Site:	Callaway
Issue date:	07/06/2016
From:	Herrmann T Ameren Missouri, Union Electric Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
ULNRC-06291
Download: ML16189A300 (64)

Text

1 4*s r i

Timothy E. Herrmann, RE.

Site Vice President Ameren Missouri AmerMISSOURI en Callaway Energy Center F 573 676 4056 therrmann@ameren.com July 06, 2016 ULNRC-06291 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-000 1 10 CFR 50.54 (1)

Ladies and Gentlemen:

DOCKET NUMBER 50-483 CALLAWAY PLANT UNIT 1 UNION ELECTRIC CO.

RENEWED FACILITY OPERATING LICENSE NPF-30 SUPPLEMENT TO EXPEDITED SEISMIC EVALUATION PROCESS REPORT

References:

1 . ULNRC 0616 1 Ameren Missouri Response to NRC Request for Information Pursuant To 10 CFR 50.54(1) regarding The Seismic Aspects ofRecommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident Expedited Seismic Evaluation Process Report, dated December 22, 2014

2. ULNRC 06239, Supplement to Expedited Seismic Evaluation Process Report, dated September 9, 2015

3. EPRI TR-3002000704, Seismic Evaluation Guidance: Augmented Approach for the Resolution of Fukushima Near-Term Task Force Recommendation 2. 1 Seismic, dated May 2013 (ML13102A142)

On May 19, 2015, Union Electric Co. (dba Ameren Missouri) received a Request for Additional Information (RAI) via email related to the Expedited Seismic Evaluation Process (ESEP) Report for Callaway Plant, provided under Reference 1 Ameren Missouri transmitted responses to the RAI questions via email.

On July 1 6, 201 5, a teleconference between Ameren Missouri and NRC staff was conducted, and at that time, it was determined that additional components needed to be added to Callaways Expedited Seismic Evaluation List (ESEL). The addition ofthese components required plant walkdowns, additional engineering analysis, and submittal of a supplement to the ESEP Report. Reference 2 served as a near term supplement to Reference 1.

STARS Alliance JunctionCC [V1CCA460 Fulton, MO 65251 Am?nMissouri.com

ULNRC-0629 1 July 06, 2016 Page 2 As a result of the additional components added to the ESEL, additional plant walkdowns were performed and engineering analysis completed. This letter transmits the results of the walkdowns/analysis, and includes the following changes to the ESEP Report under Enclosure 1:

1 . Update to Section 6.2.2, Generic Screening Results, Table 6-1 : Summary of Generic Screening per NP-6041-SL, Table 2-4, 1 .2g Screening Level

2. Update to Section 6.3, Seismic Walkdown Approach 3 . Update to Section 6.6, Tabulated ESEL HCLPF Values (Including Key Failure Modes),

Table 6-3 :HCLPF Analysis Results

4. Update to Section 9, References

5. Update to Attachment A: Callaway Energy Center ESEL

6. Update to Attachment B: ESEP HCLPF Values and Failure Modes Tabulation

7. Insertion ofAttachment C: Seismic Review Team All equipment evaluated for the ESEP for Callaway Plant was found to have adequate capacity for the required seismic demand as defined by the Augmented Approach (ESEP) guidance (Reference 3), with the exception of certain relays located in Motor Control Centers (MCCs) NGO3C and NGO4C, the Condensate Storage Tank (CST), and the Refueling Water Storage Tank (RWST). The MCC relays were addressed with a procedural modification (FLEX Support Guideline revised). To address the CST, a new Hardened Condensate Storage Tank was constructed and put into service in May 2016.

Resolution of the RWST HCLEF (High Confidence of Low Probability of Failure) being less than RLGM (Review Level Ground Motion) is still in-progress.

This letter does not contain new commitments. Should you have any questions concerning the content of this letter, please contact Mr. Tom Elwood, Regulatory Affairs Supervisor, at (3 14) 225-1905.

I declare under penalty of perjury that the foregoing is true and correct.

Timothy E. Herrmann Site Vice President Executed on: 7/ /Zo /

EMP

ULNRC-06291 July 06, 2016 Page 3

Enclosure:

1. Updated Expedited Seismic Evaluation Process (ESEP) Report (Corrected sections only)

ULNRC-06291 July 06, 2016 Page 4 cc: Mr. Kriss M. Kennedy Regional Administrator U. S. Nuclear Regulatory Commission Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 Mr. L. John Klos Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop O-8B1 Washington, DC 20555-2738

ULNRC-06291 July 06, 2016 Page 5 Index and send hardcopy to QA File A160.0761 Hardcopy:

Certrec Corporation 4150 International Plaza Suite 820 Fort Worth, TX 76109 (Certrec receives ALL attachments as long as they are non-safeguards and may be publicly disclosed.)

Electronic distribution for the following can be made via Responses and Reports ULNRC Distribution:

F. M. Diya T. E. Herrmann B. L. Cox R. C. Wink T. B. Elwood J. T. Patterson B. E. Huhmann D. M. Stepanovic Corporate Communications NSRB Secretary STARS Regulatory Affairs Mr. John O'Neill (Pillsbury Winthrop Shaw Pittman LLP) to ULNRC-06291 Page 1 of 59 ENCLOSURE 1 Updated Expedited Seismic Evaluation Process (ESEP) Report (Corrected Sections Only)

The following pages identify changes to several sections of Callaway Plants original Expedited Seismic Evaluation Process (ESEP) Report (Reference 1 on the cover letter). This enclosure replaces the following sections in the original ESEP Report:

1. Update to Section 6.2.2, Generic Screening Results, Table 6-1: Summary of Generic Screening per NP-6041-SL, Table 2-4, 1.2g Screening Level

2. Update to Section 6.3, Seismic Walkdown Approach

3. Update to Section 6.6, Tabulated ESEL HCLPF Values (Including Key Failure Modes), Table 6-3:HCLPF Analysis Results

4. Update to Section 9, References

5. Update to Attachment A: Callaway Energy Center ESEL

6. Update to Attachment B: ESEP HCLPF Values and Failure Modes Tabulation

7. Insertion of Attachment C: Seismic Review Team to ULNRC-06291 Page 2 of 59 Update to Section 6.2.2, Generic Screening Results, Table 61: Summary of Generic Screening per NP6041 SL, Table 24, 1.2g Screening Level to ULNRC-06291 Page 3 of 59 Table 6-1: Summary of generic screening per NP-6041-SL, Table 2-4, 1.2g Screening Level Generic Screening Criteria Screening Result Equipment Type Note (f) applies Although there are no extremely large Active valves extended motor operators on 2-inch or smaller piping, valves EPHV8808A/B/C/D are large MOVs with extended, heavy operators falling outside the NP-6041-SL Figure F-26 criteria and require evaluation.

No evaluation required.

Passive valves Evaluation required. HCLPF analyses required for the atmospheric Atmospheric storage tanks storage tanks.

Notes (h), (i) apply For the pressurized tanks on the ESEL, Pressure vessels anchorage and load path were verified by bounding calculations using qualification reports during screening. Potential failure modes of the vessel bodies were address by walkdown and design review. The Safety Injection Tanks (Accumulators) were designed satisfactorily to Note (i) requirements; however, the anchorage requires evaluation.

Note (k) applies. Batteries are in plastic shell frames braced for Batteries and racks overturning by steel rods and are designed for seismic loads. HCLPF analyses are required for the battery rack structure and anchorage.

No evaluation required. Although no evaluation is required for the Horizontal pumps component per se, a HCLPF evaluation for the auxiliary feedwater turbine-driven pump is required.

Notes (s) and (t) apply. Note (s) was addressed by walkdown and Active electrical power design review. Where bounding analysis of distribution panels anchorage configurations for the RLGM could not be provided, HCLPF analyses are required.

Relays are evaluated separately per Reference 5.

Note (s) applies. Note (s) was addressed by walkdown and Passive electrical power design review. Where bounding analysis of distribution panels anchorage configurations for the RLGM could not be provided, HCLPF analyses are required.

Notes (u) and (v) apply. The ESEL includes dry-type transformers. A Transformers design review verified coil restraint. HCLPF analysis of anchorage is required.

to ULNRC-06291 Page 4 of 59 Note (w) applies. Per walkdown and design review, the items on Battery chargers & inverters the ESEL are solid state units. Where bounding analysis of anchorage configurations for the RLGM could not be provided, HCLPF analyses are required.

Notes (s) and (t) apply. Note (s) was addressed by walkdown and Instrumentation and control design review. Where bounding analysis of panels and racks anchorage configurations for the RLGM could not be provided, HCLPF analyses are required.

Relays are evaluated separately per Reference 5.

Note (x) applies. Note (x) was addressed by walkdown and Temperature sensors; pressure design review. Sensors in the scope were and level sensors.

typically mounted in-line on piping.

Relevant notes from NP-6041-SL Table 2-4

f. Evaluation recommended for MOVs in piping lines of 2 inches diameter or less.

h. Margin evaluation only needs to consider anchorage and supports.

i. For vessels designed by dynamic analysis or equivalent static analysis enveloping vessel inertial and piping loading, only the anchorage and supports require evaluation. For vessel not meeting these criteria, all potential failure modes require evaluation.

k. Batteries mounted in braced racks designed for seismic loads or qualified by dynamic testing do not require evaluation. Rigid spacers between batteries and end restraints are required. Batteries should be tightly supported by side rails.

s. Walkdown should be conducted to verify that the instruments are properly attached to the cabinets.

t. Relays, contactors, switches, and breakers must be evaluated for chatter and trip if functionality during strong shaking is required.

u. Anchorage evaluation required.

v. Liquid-filled transformers require evaluation of overpressure safety switches. The transformer coils should be restrained within the cabinet for dry transformers.

w. Solid state units require anchorage checks. Others require evaluation.

x. Insufficient data are available for screening guidelines. Emphasis should be on attachments.

to ULNRC-06291 Page 5 of 59 Update to Section 6.3, Seismic Walkdown Approach to ULNRC-06291 Page 6 of 59 6.3 Seismic Walkdown Approach 6.3.1 Walkdown Approach Walkdowns were performed by two-person seismic review teams (SRTs) consisting of engineers with seismic experience. Walkdowns followed the guidance of Section 5 of EPRI 3002000704 and Section 2 of NP-6041-SL. The SRT used NP-6041-SL, Appendix F to evaluate item-specific equipment caveats. The SRT also recorded notes and took photographs of the items under review.

Four walkdown sessions have been performed as indicated below.

Walkdown Date SRT Plant Support Week of July 14, 2014 Hunter Young (S&A) Jim Cunningham (Callaway)

Samer El-Bahey (S&A) Steve Sampson (Callaway)

George Belchik (Callaway)

Week of November 3, Hunter Young (S&A) David Hollabaugh (Callaway) 2014 Apostolos Karavoussianis (S&A)

Week of June 29, Hunter Young (S&A Various CEC Staff 2015 Samer El-Bahey (S&A)

Week of April 11, Hunter Young (S&A Various CEC Staff 2016 Samer El-Bahey (S&A)

The walkdown findings for each item are documented in screening evaluation work sheets (SEWS). The SEWS notes also identify evaluations and reviews performed to support screening. The SEWS are included in Appendix C of Reference 10f. Also, Appendix A [10f] provides a concise summary of screening results in tabular format.

Qualifications of the SRT are provided in Appendix C.

6.3.2 Application of Previous Walkdown Information New seismic walkdowns were performed for ESEL equipment. Walkdown data ascertained in recent walkdowns of items as part of a seismic probabilistic risk assessment (S-PRA) were re-evaluated by the SRT and used for certain items. The results of the previous seismic margin evaluation, performed for the Seismic IPEEE program [11], were reviewed and used for background purposes only.

to ULNRC-06291 Page 7 of 59 6.3.3 Significant Walkdown Findings The walkdown and screening results are summarized in Table 6-2.

to ULNRC-06291 Page 8 of 59 Table 6-2: Items Selected for HCLPF Analysis No. ID Description Bldg Elev Basis for Selection

1. NB001 4.16KV SWGR NB001 (Class CB 2000 Anchorage could not be readily screened. Perform HCLPF analysis of 1E, Train A) -00 anchorage.

2. NG001 480 V LOAD CENTER NG01 CB/CC 2000 Anchorage could not be readily screened. Perform HCLPF analysis of

-00 anchorage.

Apply results to similar items NG002 and NG003.

3. NK011 125 V BATTERY NK011 CB/CC 2016 Anchorage could not be readily screened. Perform HCLPF analysis of

-00 anchorage.

Apply results to similar items NK013 and NK014.

4. NK021 125 V BATTERY CHARGER CB/CC 2016 Anchorage could not be readily screened. Perform HCLPF analysis of NK021 -00 anchorage.

Apply results to similar items NK023 and NK024.

5. NK025 125 V BATTERY CHARGER CB 2000 Anchorage could not be readily screened. Perform HCLPF analysis of NK025 (Swing Battery -00 anchorage.

Charger)

6. NN001 Class 1E AC DIST SWBD CB/CC 2016 Anchorage could not be readily screened. Perform HCLPF analysis of NN01 (SEP GRP 1) -00 anchorage.

Apply results to similar items NK043, NN003, NK051, NK041, NK001, NK003, NK004, and NN004.

7. NN011 7.5KVA INVERTER (FED CB/CC 2016 Anchorage could not be readily screened. Perform HCLPF analysis of FROM BATT CHARGER -00 anchorage.

NK021) Apply results to similar item NN013.

8. PA003 CUBICLE PT FOR RCP AUX 2026 Anchorage could not be readily screened. Perform HCLPF analysis of MOTOR DPBB01A -00 anchorage.

Apply results to similar item PA004.

9. PAL02 TDAFW Pump AUX 2000 Anchorage could not be readily screened. Perform HCLPF analysis of

-00 anchorage.

to ULNRC-06291 Page 9 of 59 No. ID Description Bldg Elev Basis for Selection

10. RL001 REACTOR COOLANT AND CB 2047 Anchorage could not be readily screened. Perform HCLPF analysis of SUPT SYS CONSOLE -06 anchorage.

Apply results to similar items RL002, RL005, RL006, and RL017 thru RL026.

11. SB102A W CABINET FOR REACTOR AUX 2026 Anchorage could not be readily screened. Perform HCLPF analysis of TRIP SWG TRAIN-A -00 anchorage.

12. TAP01 Condensate Storage Tank YARD 2000 Perform HCLPF analysis per Appendix H of NP-6041. In addition, evaluate

-00 block wall doghouse that is adjacent for interaction hazard.

13. TBN01 RWST YRD 2000 Perform HCLPF analysis per Appendix H of NP-6041.

-00

14. XNG01 4.16-KV/480 V LOAD CB/CC 2000 Anchorage could not be readily screened. Perform HCLPF analysis of CENTER TRANSFORMER -00 anchorage.

XNG01 FOR LC NG001

15. Generic Equipment 40 above grade AB/CB 2047 Equipment on the Aux/Ctrl 2047.5' elevation are 40' above grade and have

-06 ISRS spectral accelerations in both horizontal directions exceeding 1.8g (with clipping) and therefore do not screen to the 2nd screening lane. HCLPF analysis for component functionality and structure (including anchorage) are required for the associated components.

Affected components include NF039A, NF039B, NF039C, NG003C, NG004C, RP053AC, RP053BC, RP053DB, RP068, RP081A, RP081B, RP289, SA036A, SA036C, SA066A, SA066B, SA075A, SB029A, SB029D, SB030A, SB032A, SB032D, SB033A, SB037, SB038, SB041, SB078, SB079, SE054A, SE054C, and SE054D.

16. Generic BLOCK WALLS AB/ CB Var. Per NP-6041-SL Table 2-4 seismic capacity cannot be screened and HCLPF analysis is required for block wall seismic capacity.

Affected components include NB001, NK025, NG003, TAP01, NK043, NN003, NN013, NK041, NN001, NK021, NN011, NK051, NK001, NK023, NK071, NK073, NK011, NK013, AB007, NK003, RP209, NG002, NK024, NK074, NK004, NK014, NN014, NN004, RP140, and RP334.

17. TEP01A Safety injection tank (SIT) RB 2000 Pressure vessel with circular skirt anchored to concrete foundation. Perform HCLPF analysis of SIT anchorage.

Additional item(s) bounded by evaluation: TEP01B, TEP01C, and TEP01D to ULNRC-06291 Page 10 of 59 No. ID Description Bldg Elev Basis for Selection

18. ABPV0001 Steam generator ARV AB 2046 AOV meets criteria per Figure F-25 of NP-6041-SL. However, the valve is located more than 40 feet above grade; therefore further assessment of capacity versus demand at base of component required.

Additional item(s) bounded by evaluation: ABPV0002

19. BBHV8001A Reactor head vent valves RB 2047 SOV meets criteria per Figure F-26 of NP-6041-SL. However, the valve is located more than 40 feet above grade; therefore further assessment of capacity versus demand at base of component required.

Additional item(s) bounded by evaluation: BBHV8002A

20. EPHV8808A Accumulator isolation RB 1998 Large MOV does not screen per Figure F-26 of NP-6041-SL and an evaluation valves showing margin against the RLGM is required.

Additional item(s) bounded by evaluation: EPHV8808B, EPHV8808C, and EPHV8808D to ULNRC-06291 Page 11 of 59 Update to Section 6.6, Tabulated ESEL HCLPF Values (Including Key Failure Modes), Table 6 3:HCLPF Analysis Results to ULNRC-06291 Page 12 of 59 Table 6-3: HCLPF Analysis Results No. ID Description Bldg Elev HCLPF 1 Failure Mode Basis Related Components (g, PGA) Analyzed

1. NB001 4.16KV SWGR NB001 CB 2000-00 0.41 Equipment 14C4258- n/a (Class 1E, Train A) capacity and CAL-005 anchorage

2. NG001 480 V LOAD CENTER CB/CC 2000-00 0.41 Equipment 14C4258- NG002, NG003 NG01 capacity and CAL-005 anchorage

3. NK011 125 V BATTERY NK011 CB/CC 2016-00 2.36 Anchorage 14C4258- NK013, NK014 CAL-004

4. NK021 125 V BATTERY CB/CC 2016-00 1.33 Anchorage 14C4258- NK023, NK024 CHARGER NK021 CAL-004

5. NK025 125 V BATTERY CB 2000-00 0.85 Anchorage 14C4258- n/a CHARGER NK025 (Swing CAL-004 Battery Charger)

6. NN001 Class 1E AC DIST SWBD CB/CC 2016-00 0.71 Anchorage 14C4258- NK043, NN003, NK051, NK041, NN01 (SEP GRP 1) CAL-004 NK001, NK003, NK004, NN004

7. NN011 7.5KVA INVERTER (FED CB/CC 2016-00 0.75 Anchorage 14C4258- NN013 FROM BATT CHARGER CAL-004 NK021)

8. PA003 CUBICLE PT FOR RCP AUX 2026-00 0.62 Anchorage 14C4258- PA004 MOTOR DPBB01A CAL-004

9. PAL02 TDAFW Pump AUX 2000-00 1.75 Anchorage 14C4258- n/a CAL-004

10. RL001 REACTOR AUX CNTRL CB 2047-06 0.71 Anchorage 14C4258- RL002, RL005, RL006, RL017 thru PANEL CAL-004 RL026

11. SB102A W CABINET FOR AUX 2026-00 0.58 Anchorage 14C4258- n/a REACTOR TRIP SWG CAL-004 TRAIN-A

12. TAP01 Condensate Storage YARD 2000-00 0.30 Equipment 14C4258- n/a Tank capacity and CAL-002 anchorage

13. TBN01 RWST YRD 2000-00 0.33 Equipment 14C4258- n/a capacity and CAL-002 anchorage

14. XNG01 4.16-KV/480 V LOAD CB/CC 2000-00 0.45 Anchorage 14C4258-CENTER TRANSFORMER CAL-004 XNG01 FOR LC NG001 1

HCLPFs based upon RLGM (PGA=0.40g) as the seismic margins earthquake with the exception of TAP01, TBN01, and the CST pipe house block walls, which are based upon the GMRS (PGA=0.50g).

to ULNRC-06291 Page 13 of 59 No. ID Description Bldg Elev HCLPF 1 Failure Mode Basis Related Components (g, PGA) Analyzed

15. Generic Equipment >40 SE054A NIS Cabinet CB 2047-06 0.41 Equipment 14C4258- SE054C, SE054D capacity and CAL-005 anchorage SB037 7300 Series Three Bay CB 2047-06 0.41 Equipment 14C4258- SB038, SB041, SB078, SB079 Cabinets capacity and CAL-005 anchorage SA066A STATUS INDICATING CB 2047-06 0.41 Equipment 14C4258- SA066B SYS capacity and CAL-005 anchorage RP068 BOP Instrumentation CB 2047-06 0.41 Equipment 14C4258- n/a Panel capacity and CAL-005 anchorage RP053AC BOP Instrumentation CB 2047-06 0.41 Equipment 14C4258- RP053BC, RP053DB Rack capacity and CAL-005 anchorage RP081A T/C SUBCOOLING CB 2047-06 0.41 Equipment 14C4258- RP081B MONITOR CABINET capacity and CAL-005 anchorage

16. Generic Block Wall Seismic Interaction CTRL 2000 All block walls on CTRL CB 2000-00 1.17 Seismic interaction 14C4258- NB001, NK025, NG003, RP140, 2000 elev CAL-003 and RP334.

CTRL 2016 All block walls on CTRL CB 2016-00 0.87 Seismic interaction 14C4258- NK043, NN003, NN004, NN013, 2016 elev CAL-003 NN014, NK041, NN001, NK021, NN011, NK051, NK001, NK023, NK071, NK073, NK074 NK011, NK013, NK014, AB007, NK003, NK004, NK024 AUX 2000 2000 elev wall on AUX 2000-00 0.67 Seismic interaction 14C4258- RP209 column line AF north of CAL-003 Stair A-2 CST House CST Pipe house YARD 2000-00 0.40 Seismic interaction 14C4258- TAP01 masonry walls CAL-003

17. Generic Cabinets containing essential relays NG003C MCC NG03C BUS CB 2047-06 0.32 Functional 14C4258- NG004C capacity and host CAL-005 component capacity to ULNRC-06291 Page 14 of 59 No. ID Description Bldg Elev HCLPF 1 Failure Mode Basis Related Components (g, PGA) Analyzed NG002B MCC NG02B BUS CB 2026-00 0.40 Functional 14C4258- NG001A capacity and host CAL-005 component capacity FC0219 LOCAL CONTROL PANEL AB 2000-00 0.41 Functional 14C4258- n/a FOR TD AFW PUMP capacity and host CAL-005 component capacity

18. TEP01A Safety injection tank RB 2000 0.60g Anchorage 15C4354- TEP01B, TEP01C, and TEP01D (SIT) CAL-001

[6c]

19. ABPV0001 Steam generator ARV AB 2046 >RLGM Equipment 15C4354- ABPV0002 capacity CAL-001

20. BBHV8001A Reactor head vent RB 2047 >RLGM Equipment 15C4354- BBHV8002A valves capacity CAL-001

21. EPHV8808A Accumulator isolation RB 2000 >RLGM Equipment 15C4354- EPHV8808B, EPHV8808C, and valves capacity CAL-001 EPHV8808D to ULNRC-06291 Page 15 of 59 Update to Section 9, References to ULNRC-06291 Page 16 of 59 References

1. Letter from E. J. Leeds and M. R. Johnson, USNRC, to M. W. Sunseri, WCNOC, Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f)

Regarding Recommendations 2.1, 2.3, and 9.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-Ichi Accident, March 12, 2012. ADAMS Accession No. ML12053A340.

2. Letter from E. J. Leeds, USNRC, to J. E. Pollock, NEI, Electric Power Research Institute Final Draft Report XXXXXX, Seismic Evaluation Guidance: Augmented Approach for the Resolution of Fukushima Near-Term Task Force Recommendation 2.1: Seismic, as an Acceptable Alternative to the March 12, 2012, Information Request for Seismic Reevaluations, May 7, 2013. 3002000704; ADAMS Accession No. ML13106A331.

3. Callaway Overall Integrated Plan (OIP) in Response to the March 12, 2012, Commission Order EA-12-049.

a. Callaway Letter ULNRC-05962, Docket No. 50-483: Callaway Plant Unit 1 Union Electric Co. Facility Operating License NPF-30 Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049), February 18, 2013, (ADAMS Accession Number ML13063A459).

b. Callaway Letter ULNRC-06024, Docket No. 50-483: Callaway Plant Unit 1 Union Electric Co. Facility Operating License NPF-30 First Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049), August 29, 2013, (ADAMS Accession Number ML13242A239).

c. Callaway Letter ULNRC-06087, Docket No. 50-483: Callaway Plant Unit 1 Union Electric Co. Facility Operating License NPF-30 Second Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049), February 26, 2014, (ADAMS Accession Number ML14057A770).

d. Callaway Letter ULNRC-06135, Docket No. 50-483: Callaway Plant Unit 1 Union Electric Co. Facility Operating License NPF-30 Third Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049), August 28, 2014, (ADAMS Accession Number ML13063A459).

to ULNRC-06291 Page 17 of 59

4. SCP-15-35, Revision 1, Transmittal of the Revised Expedited Seismic Equipment List (ESEL) Update, September 2015.

5. S&A report 14C4258-RPT-003, Rev. 0, Callaway ESEL Relay Assessment, December 2014.

6. CEC FSAR, Rev. OL-20, Callaway Energy Center Final Safety Analysis Report (FSAR).

December 2013.

7. Callaway Seismic Hazard and GMRS submittal, dated March 31, 2014.

8. Electric Power Research Institute Report, NP-6041-SLR1, Revision 1, A Methodology for Assessment of Nuclear Power Plant Seismic Margin, 1991.

9. Electric Power Research Institute Report, TR-103959, Methodology for Developing Seismic Fragilities, 1994.

10. S&A Calculations:

a) 14C4258-CAL-001 Rev. 0, Generation of Scaled In-Structure Response Spectra for Callaway, December 2014.

b) 14C4258-CAL-002 Rev. 0, Seismic Capacity of CST (TAP01) and RWST (TBN01),

December 2014.

c) 14C4258-CAL-003 Rev. 0, HCLPF Analyses for Block Walls, December 2014.

d) 14C4258-CAL-004 Rev. 0, HCLPF Seismic Capacity Evaluations for Selected Equipment, December 2014.

e) 14C4258-CAL-005 Rev. 0, HCLPF Analysis of Components Based on Seismic Test Data, December 2014.

f) 14C4258-RPT-002, Revision 1, Seismic Evaluation of Equipment at CEC for the Expedited Seismic Evaluation Process, December 2014.

g) 14C4254-CAL-001, Revision 0, Screening and HCLPF Evaluations for ESEP Supplemental Items, April 2016.

h) 15C4354-RPT-001, Revision 0, Seismic Evaluation of ESEP Supplemental Items at CEC, April 2016.

11. ULNRC-3232, Callaway Plant Individual Plant Examination of External Events (IPEEE),

June 1995.

12. Electric Power Research Institute Report, NP-5223-SL, Revision 1, Generic Seismic Ruggedness of Power Plant Equipment, 1991.

13. Electric Power Research Institute Technical Report, TR-1019200, Seismic Fragility Applications Guide Update, 2009.

14. Letter from A. R. Pietrangelo, NEI, to D. L Skeen, USNRC, Seismic Risk Estimates for Plants in the Central and Eastern United States, March 12, 2014. ADAMS Accession No. ML14083A584.

15. NRC (E Leeds) Letter to All Power Reactor Licensees et al., Screening and Prioritization Results Regarding Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(F) Regarding Seismic Hazard Re-Evaluations for Recommendation 2.1 of the Near-to ULNRC-06291 Page 18 of 59 Term Task Force Review of Insights From the Fukushima Dai-Ichi Accident, May 9, 2014.

16. Seismic Evaluation Guidance: Screening, Prioritization and Implementation Details (SPID) for the Resolution of Fukushima Near-Term Task Force Recommendation 2.1:

Seismic. EPRI, Palo Alto, CA: February 2013. 1025287.

17. Letter from A. R. Pietrangelo, NEI, to D. L. Skeen, USNRC, Proposed Path Forward for NTTF Recommendation 2.1: Seismic Reevaluations, April 9, 2013. ADAMS Accession No. ML13107B386.

to ULNRC-06291 Page 19 of 59 Update to Attachment A:

Callaway Energy Center ESEL to ULNRC-06291 Page 20 of 59 Attachment A: Callaway Energy Center ESEL to ULNRC-06291 Page 21 of 59 Table 1: Callaway Updated ESEL ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State SG AFW from Turbine Driven Auxiliary Feedwater Pump CST provides AFW 1 TAP01 Condensate Storage Tank Operable Operable suction for the first 17 hours1.967593e-4 days <br />0.00472 hours <br />2.810847e-5 weeks <br />6.4685e-6 months <br /> 2 PAL02 TDAFW Pump TDAFW provides pump Not power to move AFW to Operating Operating SG 3 ALHV0034 MOV MOV required to isolate Open Closed flow path 4 ALHV0035 MOV MOV required to isolate Open Closed flow path 5 ALPI0029 Suction Pressure Indicator TDAFW pump suction N/A N/A pressure indicator 6 ALFE0049 TDAFWP Miniflow Flow AFW flow related Element N/A N/A hardware 7 ALFI0049 TDAFWP Miniflow Flow AFW flow related Indicator N/A N/A hardware 8 APLV0002 Level Control Valve Open Closed Fail closed valve Turbine Driven Auxiliary Feedwater Pump Discharge to SG Feed Piping 9 ALPI0020 TDAFW Pump Discharge Pump discharge pressure Pressure Indicator N/A N/A Feed Path To SG "C" 10 ALHV0012 Air Operated Valve Valve may be operated to Open Open throttle AFW flow to SG 11 ALFE0004 Flow Element AFW flow related N/A N/A hardware 12 ALFT0004 Flow Transmitter AFW flow related N/A N/A hardware 13 ALFT0011 Flow Transmitter AFW flow related N/A N/A hardware 14 AEFV0041 Feedwater Isolation Valve Open Closed Fail closed valve Feed Path To SG "B" 15 ALHV0010 Air Operated Valve Valve may be operated to Open Open throttle AFW flow to SG 16 ALFE0003 Flow Element N/A N/A N/A 17 ALFT0003 Flow Transmitter AFW flow related N/A N/A hardware 18 ALFT0009 Flow Transmitter AFW flow related N/A N/A hardware to ULNRC-06291 Page 22 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 19 AEFV0040 Feedwater Isolation Valve Open Closed Fail closed valve Feed Path To SG "A" 20 ALHV0008 Air Operated Valve Valve may be operated to Open Open throttle AFW flow to SG 21 ALFE0002 Flow Element AFW flow related N/A N/A hardware 22 ALFT0002 Flow Transmitter AFW flow related N/A N/A hardware 23 ALFT0007 Flow Transmitter AFW flow related N/A N/A hardware 24 AEFV0039 Feedwater Isolation Valve Open Closed Fail closed valve Feed Path To SG "D" 25 ALHV0006 Air Operated Valve Valve may be operated to Open Open throttle AFW flow to SG 26 ALFE0001 Flow Element AFW flow related N/A N/A hardware 27 ALFT0001 Flow Transmitter AFW flow related N/A N/A hardware 28 AEFV0042 Feedwater Isolation Valve Open Closed Fail closed valve Steam Supply To Auxiliary Feed Water Pump Turbine "B" SG Main Steam Line 29 ABHV0005 Air Operated Valve TDAFW controls and steam flow controls. Fails Closed Fail Open open.

30 ABHV0048 Air Operated Valve TDAFW controls and Fail steam flow controls. Fails Open Closed closed.

"C" SG Main Steam Line 31 ABHV0006 Air Operated Valve TDAFW controls and steam flow controls. Fails Closed Fail Open open.

32 ABHV0049 Air Operated Valve TDAFW controls and Fail steam flow controls. Fails Open Closed closed.

Turbine Steam Supply Line 33 FCPI0311 Pressure Indicator TDAFW turbine inlet N/A N/A steam pressure 34 FCLT0010 Level Indicator Needed to prevent water N/A N/A intrusion in TDAFWP to ULNRC-06291 Page 23 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 35 FCFV0310 Level Control Valve Needed to prevent water Fail intrusion in TDAFWP.

Open Closed Valve fails closed.

36 FCHV0312 Trip and Throttle Valve TDAFW controls and steam flow controls.

Operation of this manual valve should be accounted for in operating Closed Operating procedures.

37 Speed Governor TDAFW controls and Standby Operating steam flow controls.

38 FCFV0313 Speed Governor Valve TDAFW controls and Open Operating steam flow controls.

39 KFC02 AFW Pump Turbine Not TDAFW controls and Operating Operating steam flow controls.

RCS Makeup Primary Connection Point 40 BBPV8702A RHR TO RCS Closed Open 41 EMHV8803B MOTOR-OPERATED Primary flow path, can be VALVE EMHV8803B Closed Open operated manually 42 EMHV8801B MOTOR-OPERATED Primary flow path, can be VALVE EMHV8801B Closed Open operated manually 43 EMFE0924 ECCS FLOW TO RCS COLD-LEG 1 N/A N/A ECCS flow hardware 44 EMFE0925 ECCS FLOW TO RCS COLD-LEG 2 N/A N/A ECCS flow hardware 45 EMFE0926 ECCS FLOW TO RCS COLD-LEG 3 N/A N/A ECCS flow hardware 46 EMFE0927 ECCS FLOW TO RCS COLD-LEG 4 N/A N/A ECCS flow hardware 47 TBN01 RWST Secondary source for core makeup after BAT N/A N/A exhausted 48 BNLT0930 RWST Level Transmitter N/A N/A Monitor RWST level 49 EJHCV0606 RHR Heat Exchanger A Outlet Isolation Valve Fail Open Closed Can be operated manually 50 TBG03A Boric Acid Tank N/A N/A N/A 51 BGLT0102 BORIC ACID TANK A LEV N/A N/A Monitor BAT level 52 BGLI0102 BORIC ACID TANK A LEV N/A N/A Local level indicator 53 EJFCV0610 RHR Pump A miniflow Valve Open Closed N/A to ULNRC-06291 Page 24 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State Electrical 54 NB001 4.16KV SWGR NB001 This component is (Class 1E, Train A) powered by the FLEX DG in Phase 3 as stated in Sect. 8 of the Callaway Plant FLEX Integrated N/A N/A Plan 55 NB00101 4.16 kV FDR BKR FOR This component is RHRP-A DPEJ01A powered by the FLEX DG (Residual Heat Removal in Phase 3 as stated in Pump A) Sect. 8 of the Callaway Plant FLEX Integrated N/A N/A Plan 56 NB00107 4.16 kV FDR BKR FOR This component is CCWP-A DPEG01A powered by the FLEX DG (Component Cooling in Phase 3 as stated in Water Pump A) Sect. 8 of the Callaway Plant FLEX Integrated N/A N/A Plan 57 NB00109 4.16 kV FLEX GEN This breaker position is the (Phase 3) TIE-IN POINT tie-in point for the Phase 3 (BKR) FOR TRAIN A N/A N/A FLEX diesel generator 58 NB00113 4.16 kV FDR BKR FOR This component is XFMR XNG01 (4160 V powered by the FLEX DG to 480 V for LC NG001) in Phase 3 as stated in Sect. 8 of the Callaway Plant FLEX Integrated N/A N/A Plan 59 XNG01 4.16-KV/480 V LOAD This component is CENTER powered by the FLEX DG TRANSFORMER in Phase 3 as stated in XNG01 FOR LC NG001 Sect. 8 of the Callaway Plant FLEX Integrated N/A N/A Plan 60 NG001 480 V LOAD CENTER This component is NG01 powered by the FLEX DG, first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Plant FLEX N/A N/A Integrated Plan to ULNRC-06291 Page 25 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 61 NG00101 MAIN BKR FOR LC This component is NG01 powered by the FLEX DG in Phase 3 as stated in Sect. 8 of the Callaway Plant FLEX Integrated N/A N/A Plan 62 NG00103 FDR BKR FOR 125 V This component is VITAL BATTERY powered by the FLEX DG, CHARGER NK021 first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Plant FLEX N/A N/A Integrated Plan 63 NG00112 FLEX 500 kW TIE IN This component is BRK (Phase 2 connection powered by the FLEX DG point) in Phase 2 as stated in Sect. 8 of the Callaway Plant FLEX Integrated N/A N/A Plan 64 NG00116 TIE BKR (CONNECTS This component is NG01 AND NG03) powered by the FLEX DG, first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Plant FLEX N/A N/A Integrated Plan 65 NG003 480 V LOAD CENTER This component is NG03 powered by the FLEX DG, first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Plant FLEX N/A N/A Integrated Plan 66 NG00303 FDR BKR FOR 125 V This component is VITAL BATTERY powered by the FLEX DG, CHARGER NK023 first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Plant FLEX N/A N/A Integrated Plan 67 NK021 125 V BATTERY This component is CHARGER NK021 powered by the FLEX DG, first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Plant FLEX N/A N/A Integrated Plan to ULNRC-06291 Page 26 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 68 NK071 TRANSFER SWITCH This component is BUS NK01 BATTERY powered by the FLEX DG, CHARGER NK21/NK25 first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Plant FLEX N/A N/A Integrated Plan 69 NK001 125 VDC BUS This component is SWITCHBOARD NK001 powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 70 NK00102 FDR BKR FROM BATT This component is CHGR NK021 TO powered by the FLEX DG, NK001 first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Plant FLEX N/A N/A Integrated Plan 71 NK00104 MAIN BREAKER FOR This component is CNTRL AND DIST PNL powered during ALL NK041 (PART OF phases of the FLEX SWBD NK001) strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 72 NK00105 MAIN BREAKER FOR This component is CNTRL AND DIST PNL powered during ALL NK051 (PART OF phases of the FLEX SWBD NK001) strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 73 NK011 125 V BATTERY NK011 This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 74 NK00101 ISOLATION BKR FOR This component is BATTERY NK011 powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan to ULNRC-06291 Page 27 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 75 NK00111 FDR BKR FOR This component is INVERTER NN011 powered during ALL (PART OF SWBD phases of the FLEX NK001) strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 76 NN011 7.5KVA INVERTER This component is (FED FROM BATT powered during ALL CHARGER NK021) phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 77 NN001 Class 1E AC DIST This component is SWBD NN01 (SEP GRP powered during ALL

1) phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 78 SA066A STATUS INDICATING This component is SYS powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 79 SENY0060A NEUTRON FLUX This component is MONITORING powered during ALL SYSTEM DETECTOR phases of the FLEX AMPLIFIER SENY 60A strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 80 SENY0060B NEUTRON FLUX This component is MONITORING powered during ALL SYSTEM DETECTOR phases of the FLEX AMPLIFIER SENY 60B strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 81 SB038 W PROCESS ANALOG This component is PROTECTION SET powered during ALL CAB-01 phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan to ULNRC-06291 Page 28 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 82 SE054A W NUC INSTM NIS 1 This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 83 RP053AC BOP This component is INSTRUMENTATION powered during ALL RACK (TERMINATION phases of the FLEX AREA) strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 84 SB078 RPV LEVEL INSTR SYS This component is (RVLIS) PROC PROT powered during ALL SYS CABINET phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 85 RP081A T/C SUBCOOLING This component is MONITOR CABINET powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 86 NK041 CNTRL & INSTR DIST This component is SWBD NK041 (CLASS powered during ALL 1E 125 VDC) phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 87 NE107 DIESEL GEN PNL This component is NE107 & FIELD powered during ALL FLASHING phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 88 RL005 TURBINE This component is GENERATOR AND FW powered during ALL CONSOLE phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan to ULNRC-06291 Page 29 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 89 RL006 TURBINE This component is GENERATOR AND FW powered during ALL CONSOLE phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 90 RP315 DC DIST PNL RP315 This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 91 RL023 TURBINE This component is GENERATOR AND FW powered during ALL MCB phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 92 RL024 TURBINE This component is GENERATOR AND FW powered during ALL MCB phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 93 RL017 ESF MCB This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 94 RL018 ESF MCB This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 95 RL019 ESF MCB This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan to ULNRC-06291 Page 30 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 96 RL020 ESF MCB This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 97 RL001 REACTOR COOLANT This component is AND SUPT SYS powered during ALL CONSOLE phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 98 RL002 REACTOR COOLANT This component is AND SUPT SYS powered during ALL CONSOLE phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 99 RL025 TURBINE This component is GENERATOR AND FW powered during ALL MCB phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 100 RL026 TURBINE This component is GENERATOR AND FW powered during ALL MCB phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 101 RP317 FUSED 125 VDC DIST This component is PNL RP317 powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 102 NK051 CNTRL & INSTR DIST This component is SWBD NK051 (CLASS powered during ALL 1E 125 VDC) phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan to ULNRC-06291 Page 31 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 103 BBPCV0455A BBPCV0455A PORV This component is SOLENOID FAILS TO powered during ALL OPEN ON DEMAND phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 104 RL021 REACTOR AUX CNTRL This component is PANEL powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 105 RL022 REACTOR AUX CNTRL This component is PANEL powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 106 KJ0121 DIESEL GAUGE AND This component is CONTROL PANEL powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 107 RP209 B AUXILIARY RELAY This component is RACK powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 108 RP289 DC DIST PNL RP289 This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 109 RP068 MISC BOP This component is INSTRUMENT RACK powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan to ULNRC-06291 Page 32 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 110 RP330 AUX RELAY RACK This component is RP330 powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 111 RP332 B AUXILIARY RELAY This component is RACK powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 112 NK051A EM'CY LIGHTING DIST This component is SWBD NK051A powered during ALL (SUBPNL OF NK051) phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 113 NK023 125 V BATTERY This component is CHARGER NK023 powered by the FLEX DG, first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Plant FLEX N/A N/A Integrated Plan 114 NK073 TRANSFER SWITCH This component is BUS NK03 BATTERY powered by the FLEX DG, CHARGER NK23/NK25 first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Plant FLEX N/A N/A Integrated Plan 115 NK003 125 VDC BUS This component is SWITCHBOARD NK003 powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 116 NK00302 FDR BKR FROM BATT This component is CHGR NK023 TO powered by the FLEX DG, NK003 first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Plant FLEX N/A N/A Integrated Plan to ULNRC-06291 Page 33 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 117 NK00304 MAIN BREAKER FOR This component is CNTRL AND DIST PNL powered during ALL NK043 (PART OF phases of the FLEX SWBD NK003) strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 118 NK013 125 V BATTERY NK013 This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 119 NK00301 ISOLATION BKR FOR This component is BATTERY NK013 powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 120 NK00311 FDR BKR FOR This component is INVERTER NN013 powered during ALL (PART OF SWBD phases of the FLEX NK003) strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 121 NN013 7.5KVA INVERTER This component is (FED FROM BATT powered during ALL CHARGER NK023) phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 122 NN003 Class 1E AC DIST This component is SWBD NN03 (SEP GRP powered during ALL

3) phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 123 RP053DB BOP INSTR RACK This component is RP053DB powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan to ULNRC-06291 Page 34 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 124 SB037 W PROCESS ANALOG This component is PROTECTION SET powered during ALL CAB-03 phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 125 SE054C W NUC INSTM NIS 3 This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 126 NK043 CNTRL & INSTR DIST This component is SWBD NK043 (CLASS powered during ALL 1E 125 VDC) phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 127 AB007 Aux Relay Rack This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Plant N/A N/A FLEX Integrated Plan 128 NG00109 FDR BKR FOR 125 V This component provides SWING BATTERY power to NK025 and, in CHARGER NK025 N/A N/A turn, Separation Group 1.

129 NK025 125 V BATTERY The A-Train swing charger CHARGER NK025 will be used to power (Swing Battery Charger) N/A N/A Separation Group 1.

130 NG002 480 V LOAD CENTER This component is NG02 powered by the FLEX DG, first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 131 NG00212 FLEX 500 kW TIE IN This component is BKR from FD201 (Phase powered by the FLEX DG, 2 connection point) first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan to ULNRC-06291 Page 35 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 132 NG00203 FDR BKR FOR 125 V This component is VITAL BATTERY powered by the FLEX DG, CHARGER NK024 first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 133 NK024 125 V BATTERY This component is CHARGER NK024 powered by the FLEX DG, first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 134 NK074 TRANSFER SWITCH This component is BUS NK04 BATTERY powered by the FLEX DG, CHARGER NK24/NK26 first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 135 NK004 125 VDC BUS This component is SWITCHBOARD NK004 powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 136 NK00402 FDR BKR FROM BATT This component is CHGR NK024 TO powered by the FLEX DG, NK004 first Phase 2, then in Phase 3, as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 137 NK014 125 V BATTERY NK014 This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 138 NK00401 ISOLATION BKR FOR This component is BATTERY NK014 powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan to ULNRC-06291 Page 36 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 139 NK00411 FDR BKR FOR This component is INVERTER NN011 powered during ALL (PART OF SWBD phases of the FLEX NK004) strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 140 NN014 7.5KVA INVERTER This component is (FED FROM BATT powered during ALL CHARGER NK024) phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 141 NN004 Class 1E AC DIST This component is SWBD NN04 (SEP GRP powered during ALL

4) phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 142 RP147B BOP Instrumentation This component is Rack RP147B powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 143 SENY0061A NEUTRON FLUX This component is MONITORING powered during ALL SYSTEM DETECTOR phases of the FLEX AMPLIFIER SENY 61A strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 144 SENY0061B NEUTRON FLUX This component is MONITORING powered during ALL SYSTEM DETECTOR phases of the FLEX AMPLIFIER SENY 61B strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 145 SE054D W NUC INSTM NIS 4 This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan to ULNRC-06291 Page 37 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 146 SB041 W PROCESS ANALOG This component is PROTECTION SET powered during ALL CAB-04 phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 147 RP053BC BOP Instrumentation This component is Rack RP053BC powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 148 SB079 RVLIS Process Cabinet This component is SB079 powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 149 RP081B Subcooling Monitor This component is Cabinet powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 150 SB148B W PROCESS This component is PROTECTION (Fire powered during ALL Isolation) phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 151 SA066B STATUS INDICATING This component is SYS powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan 152 RP140 PANEL RP140 This component is powered during ALL phases of the FLEX strategy as stated in Sect. 8 of the Callaway Integrated N/A N/A FLEX Plan to ULNRC-06291 Page 38 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State Additional Items in Response to NRC Clarification Questions 153 ABPT0514 Steam Generator A Monitor S/G pressure in all Pressure Transmitter three phases (Steam Generator Pressure) N/A N/A 154 ABPT0524 Steam Generator B Monitor S/G pressure in all Pressure Transmitter three phases (Steam Generator Pressure) N/A N/A 155 ABPT0534 Steam Generator C Monitor S/G pressure in all Pressure Transmitter three phases (Steam Generator Pressure) N/A N/A 156 ABPT0544 Steam Generator D Monitor S/G pressure in all Pressure Transmitter three phases (Steam Generator Pressure) N/A N/A 157 ABPV0001 Steam Generator A Closed Open ARV will need to cycle Atmospheric Steam open as needed to remove Dump (Steam Generator heat from steam generators Atmospheric Relief Valves) 158 ABPV0002 Steam Generator B Closed Open ARV will need to cycle Atmospheric Steam open as needed to remove Dump (Steam Generator heat from steam generators Atmospheric Relief Valves) 159 AELT0529 Steam Generator B Monitor S/G level in all Narrow Range Level three phases Transmitter (Steam Generator Water Level) N/A N/A 160 AELT0539 Steam Generator C Monitor S/G level in all Narrow Range Level three phases Transmitter (Steam Generator Water Level) N/A N/A 161 BBHV8001A RCS Reactor Vessel Head Closed Standby Flow limited by choked Vent A Upstream Valve flow at RCS pressure.

(Reactor Head Vent) Maintained for defense in depth 162 BBHV8002A RCS Reactor Vessel Head Closed Standby Flow limited by choked Vent A Downstream flow at RCS pressure.

Valve (Reactor Head Maintained for defense in Vent) depth to ULNRC-06291 Page 39 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 163 BBPCV455A Pressurizer Power Closed Standby PORVs operate in normal Operated Relief Valve manner as conditions (Pressurizer PORV) require. Not preferred path. Maintained for defense in depth.

164 BBPT0455 RCS Pressurizer Pressure Monitor RCS pressure in Channel 1 (RCS Pressure) N/A N/A all three phases 165 BBTE0413A RCS LOOP 1 Wide Monitor RCS temperature Range Hot Leg Prot A in all three phases Temperature Element (RCS Temperature) N/A N/A 166 BBTE0413B RCS LOOP 1 Wide Monitor RCS temperature Range Cold Leg Prot A in all three phases Temperature Element (RCS Temperature) N/A N/A 167 BBTE0423A RCS LOOP 2 Wide Monitor RCS temperature Range Hot Leg Prot A in all three phases Temperature Element (RCS Temperature) N/A N/A 168 BBTE0423B RCS LOOP 2 Wide Monitor RCS temperature Range Cold Leg Prot A in all three phases Temperature Element (RCS Temperature N/A N/A 169 EPHV8808A Accumulator Tank A Open Closed Valve will need to be Outlet Isolation Valve closed when the (Accumulator Isolation accumulators are empty Valves) 170 EPHV8808B Accumulator Tank B Open Closed Valve will need to be Outlet Isolation Valve closed when the (Accumulator Isolation accumulators are empty Valves) 171 EPHV8808C Accumulator Tank C Open Closed Valve will need to be Outlet Isolation Valve closed when the (Accumulator Isolation accumulators are empty Valves) 172 EPHV8808D Accumulator Tank D Open Closed Valve will need to be Outlet Isolation Valve closed when the (Accumulator Isolation accumulators are empty Valves) 173 GNPT0936 Containment Atmospheric Monitor containment Pressure Channel 2 pressure in all three phases Pressure Transmitter (Containment Pressure) N/A N/A to ULNRC-06291 Page 40 of 59 ESEL Equipment Operating State Item Normal Desired Notes/Comments Num. ID Normal State State State 174 GNPT0937 Containment Atmospheric Monitor containment Pressure Channel 1 pressure in all three phases Pressure Transmitter(Containment Pressure) N/A N/A 175 TEP01A Safety Injection Needed only for Phase 1.

Accumulator Tank A Will be isolated before (Accumulators) N/A N/A completely empty.

176 TEP01B Safety Injection Needed only for Phase 1.

Accumulator Tank B Will be isolated before (Accumulators) N/A N/A completely empty.

177 TEP01C Safety Injection Needed only for Phase 1.

Accumulator Tank C Will be isolated before (Accumulators) N/A N/A completely empty.

178 TEP01D Safety Injection Needed only for Phase 1.

Accumulator Tank D Will be isolated before (Accumulators) N/A N/A completely empty.

to ULNRC-06291 Page 41 of 59 Update to Attachment B:

ESEP HCLPF Values and Failure Modes Tabulation to ULNRC-06291 Page 42 of 59 Attachment B: ESEP HCLPF Values and Failure Modes Tabulation HCLPF values are listed in Table B-1. These notes are applicable:

1. The listed HCLPF value is for comparison to the horizontal PGA at the surface.

2. Items covered by the NP-6041-SL rule of the box (ROB) are identified in Table A-2 [9]. In each case, the HCLPF value for the parent item applies.

3. Where an anchorage HCLPF is performed but the component per se is screened, the equipment capacity is assigned based upon the 1.2g peak spectral acceleration coinciding with the 2nd screening lane of NP-6041-SL, Table 2-4. Since the WCGS RLGM has a peak spectral acceleration of 0.93g and PGA of 0.29g [Reference 10e], the 1.2g peak spectral acceleration corresponds with a PGA of 0.38g (witness 1.2g/0.93g*0.29g=0.38g). For equipment located above 40, the equipment capacity is conservatively assigned at the RLGM level of 0.29g.

4. For the CST and RWST only (TAP01 and TBN01, respectively), the applied ground motion was based on the GMRS (PGA = 0.29).

5. As a result of the relay chatter evaluation, additional items were added to the ESEL list for evaluation.

to ULNRC-06291 Page 43 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number Tank capacity evaluated in 14C4258-Condensate 1 TAP01 YARD 2000-00 0.3 Anchorage CAL-002. Block wall Storage Tank evaluated per 14C4258-CAL-003.

Component per se screened. Anchorage 2 PAL02 TDAFW Pump AUX 2000-00 0.4 Equipment Capacity evaluated per 14C4258-CAL-004.

3 ALHV0034 MOV AUX 1988-00 >RLGM Screened SRT disposition 4 ALHV0035 MOV AUX 1988-00 >RLGM Screened SRT disposition Suction Pressure 5 ALPI0029 AUX 2000-00 >RLGM Screened SRT disposition Indicator TDAFWP Miniflow 6 ALFE0049 AUX 2000-00 >RLGM Screened SRT disposition Flow Element TDAFWP Miniflow 7 ALFI0049 AUX 2000-00 >RLGM Screened SRT disposition Flow Indicator 8 APLV0002 Level Control Valve YARD 2000-00 >RLGM Screened SRT disposition TDAFW Pump 9 ALPI0020 Discharge Pressure AUX 2000-00 >RLGM Screened SRT disposition Indicator 10 ALHV0012 Air Operated Valve AUX 2004-07 >RLGM Screened SRT disposition 11 ALFE0004 Flow Element AUX 2000-00 >RLGM Screened SRT disposition 12 ALFT0004 Flow Transmitter AUX 2016-01 >RLGM Screened SRT disposition 13 ALFT0011 Flow Transmitter AUX 2000-00 >RLGM Screened SRT disposition Feedwater Isolation 14 AEFV0041 AUX 2028-00 >RLGM Screened SRT disposition Valve 15 ALHV0010 Air Operated Valve AUX 2002-09 >RLGM Screened SRT disposition 16 ALFE0003 Flow Element AUX 2000-00 >RLGM Screened SRT disposition 17 ALFT0003 Flow Transmitter AUX 2016-00 >RLGM Screened SRT disposition 18 ALFT0009 Flow Transmitter AUX 2000-00 >RLGM Screened SRT disposition Feedwater Isolation 19 AEFV0040 AUX 2027-10 >RLGM Screened SRT disposition Valve 20 ALHV0008 Air Operated Valve AUX 2004-00 >RLGM Screened SRT disposition 21 ALFE0002 Flow Element AUX 2000-00 >RLGM Screened SRT disposition 22 ALFT0002 Flow Transmitter AUX 2016-00 >RLGM Screened SRT disposition 23 ALFT0007 Flow Transmitter AUX 2000-00 >RLGM Screened SRT disposition Feedwater Isolation 24 AEFV0039 AUX 2028-00 >RLGM Screened SRT disposition Valve 25 ALHV0006 Air Operated Valve AUX 2001-06 >RLGM Screened SRT disposition 26 ALFE0001 Flow Element AUX 2000-00 >RLGM Screened SRT disposition 27 ALFT0001 Flow Transmitter AUX 2015-00 >RLGM Screened SRT disposition Feedwater Isolation 28 AEFV0042 AUX 2027-10 >RLGM Screened SRT disposition Valve 29 ABHV0005 Air Operated Valve AUX 2027-10 >RLGM Screened SRT disposition 30 ABHV0048 Air Operated Valve AUX 2027-10 >RLGM Screened SRT disposition to ULNRC-06291 Page 44 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number 31 ABHV0006 Air Operated Valve AUX 2027-10 >RLGM Screened SRT disposition 32 ABHV0049 Air Operated Valve AUX 2027-10 >RLGM Screened SRT disposition 33 FCPI0311 Pressure Indicator AUX 2000-00 >RLGM Screened SRT disposition 34 FCLT0010 Level Indicator AUX 2000-00 >RLGM Screened SRT disposition 35 FCFV0310 Level Control Valve AUX 1988-00 >RLGM Screened SRT disposition Trip and Throttle 36 FCHV0312 AUX 2000-00 >RLGM Screened SRT disposition Valve Item is ROB to PAL02.

Component per se 37 Speed Governor Speed Governor AUX 2000-00 0.4 Equipment Capacity screened. Anchorage evaluated per 14C4258-CAL-004.

Item is ROB to PAL02.

Component per se Speed Governor 38 FCFV0313 AUX 2000-00 0.4 Equipment Capacity screened. Anchorage Valve evaluated per 14C4258-CAL-004.

Item is ROB to PAL02.

Component per se 39 KFC02 AFW Pump Turbine AUX 2000-00 0.4 Equipment Capacity screened. Anchorage evaluated per 14C4258-CAL-004.

40 BBPV8702A RHR TO RCS RB 2007-09 >RLGM Screened SRT disposition MOTOR-OPERATED 41 EMHV8803B AUX 1975-08 >RLGM Screened SRT disposition VALVE EMHV8803B MOTOR-OPERATED 42 EMHV8801B AUX 2002-00 >RLGM Screened SRT disposition VALVE EMHV8801B ECCS FLOW TO RCS 43 EMFE0924 RB 1998-06 >RLGM Screened SRT disposition COLD-LEG 1 ECCS FLOW TO RCS 44 EMFE0925 RB 1998-06 >RLGM Screened SRT disposition COLD-LEG 2 ECCS FLOW TO RCS 45 EMFE0926 RB 1998-06 >RLGM Screened SRT disposition COLD-LEG 3 ECCS FLOW TO RCS 46 EMFE0927 RB 1998-06 >RLGM Screened SRT disposition COLD-LEG 4 Tank capacity 47 TBN01 RWST YRD 2000-00 0.33 Anchorage evaluated in 14C4258-CAL-002.

RWST Level 48 BNLT0930 YRD 1993-00 >RLGM Screened SRT disposition Transmitter RHR Heat 49 EJHCV0606 Exchanger A Outlet AUX 2001-06 >RLGM Screened SRT disposition Isolation Valve 50 TBG03A Boric Acid Tank AUX 1974-00 >RLGM Screened SRT disposition BORIC ACID TANK A 51 BGLT0102 AUX 1968-01 >RLGM Screened SRT disposition LEV Item is ROB to RL001.

Component per se BORIC ACID TANK A 52 BGLI0102 CB 2047-06 0.4 Equipment Capacity screened. Anchorage LEV evaluated per 14C4258-CAL-004.

RHR Pump A 53 EJFCV0610 AUX 1968-01 >RLGM Screened SRT disposition miniflow Valve to ULNRC-06291 Page 45 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number Equipment capacity evaluated in 14C4258-4.16KV SWGR CAL-005. Anchorage 54 NB001 NB001 (Class 1E, CB 2000-00 0.41 Anchorage evaluated per Train A) 14C4258-CAL-005 Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NB001.

Equipment capacity 4.16 kV FDR BKR evaluated in 14C4258-FOR RHRP-A 55 CAL-005. Anchorage NB00101 DPEJ01A (Residual CB 2000-00 0.41 Anchorage evaluated per Heat Removal 14C4258-CAL-005.

Pump A)

Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NB001.

4.16 kV FDR BKR Equipment capacity FOR CCWP-A evaluated in 14C4258-DPEG01A CAL-005. Anchorage 56 NB00107 CB 2000-00 0.41 Anchorage (Component evaluated per Cooling Water 14C4258-CAL-004.

Pump A) Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NB001.

Equipment capacity 4.16 kV FLEX GEN evaluated in 14C4258-(Phase 3) TIE-IN CAL-005. Anchorage 57 NB00109 CB 2000-00 0.41 Anchorage POINT (BKR) FOR evaluated per TRAIN A 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NB001.

Equipment capacity 4.16 kV FDR BKR evaluated in 14C4258-FOR XFMR XNG01 CAL-005. Anchorage 58 NB00113 CB 2000-00 0.41 Anchorage (4160 V to 480 V evaluated per for LC NG001) 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

4.16-KV/480 V Component per se LOAD CENTER screened. Anchorage 59 XNG01 TRANSFORMER CB/CC 2000-00 0.4 Equipment Capacity evaluated per XNG01 FOR LC 14C4258-CAL-004.

NG001 Equipment capacity evaluated in 14C4258-480 V LOAD 60 NG001 CB/CC 2000-00 0.41 Anchorage CAL-005. Anchorage CENTER NG01 evaluated per 14C4258-CAL-005.

Item is ROB to NG001.

Equipment capacity MAIN BKR FOR LC evaluated in 14C4258-61 NG00101 CB 2000-00 0.41 Anchorage NG01 CAL-005. Anchorage evaluated per 14C4258-CAL-004.

Item is ROB to NG001.

Equipment capacity FDR BKR FOR 125 V evaluated in 14C4258-62 NG00103 VITAL BATTERY CB 2000-00 0.41 Anchorage CAL-005. Anchorage CHARGER NK021 evaluated per 14C4258-CAL-004.

to ULNRC-06291 Page 46 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number Item is ROB to NG001.

FLEX 350 kW TIE IN Equipment capacity BRK (Alternate evaluated in 14C4258-66 NG00112 CB 2000-00 0.41 Anchorage Phase 2 connection CAL-005. Anchorage point) evaluated per 14C4258-CAL-004.

Item is ROB to NG001.

Equipment capacity TIE BKR (CONNECTS evaluated in 14C4258-64 NG00116 CB 2000-00 0.41 Anchorage NG01 AND NG03) CAL-005. Anchorage evaluated per 14C4258-CAL-005.

Equipment capacity evaluated in 14C4258-CAL-005. Anchorage 480 V LOAD 65 NG003 CB/CC 2000-00 0.41 Anchorage evaluated per CENTER NG03 14C4258-CAL-005.

Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NG003.

Equipment capacity evaluated in 14C4258-FDR BKR FOR 125 V CAL-005. Anchorage 66 NG00303 VITAL BATTERY CB 2000-00 0.41 Anchorage evaluated per CHARGER NK023 14C4258-CAL-005.

Block wall evaluated per 14C4258-CAL-003.

Component per se screened. Anchorage 125 V BATTERY evaluated per 67 NK021 CB/CC 2016-00 0.4 Equipment Capacity CHARGER NK021 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

TRANSFER SWITCH Component per se BUS NK01 BATTERY screened. Block wall 68 NK071 CB 2016-00 0.4 Equipment Capacity CHARGER evaluated per NK21/NK25 14C4258-CAL-003.

Equipment capacity evaluated in 14C4258-125 VDC BUS CAL-005. Anchorage 69 NK001 SWITCHBOARD CB/CC 2016-00 0.71 Anchorage evaluated per NK001 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NK001.

Equipment capacity evaluated in 14C4258-FDR BKR FROM CAL-005. Anchorage 70 NK00102 BATT CHGR NK021 CB 2016-00 0.71 Anchorage evaluated per TO NK001 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NK001.

Equipment capacity MAIN BREAKER evaluated in 14C4258-FOR CNTRL AND CAL-005. Anchorage 71 NK00104 DIST PNL NK041 CB 2016-00 0.71 Anchorage evaluated per (PART OF SWBD 14C4258-CAL-004.

NK001)

Block wall evaluated per 14C4258-CAL-003.

to ULNRC-06291 Page 47 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number Item is ROB to NK001.

Equipment capacity MAIN BREAKER evaluated in 14C4258-FOR CNTRL AND CAL-005. Anchorage 72 NK00105 DIST PNL NK051 CB 2016-00 0.71 Anchorage evaluated per (PART OF SWBD 14C4258-CAL-004.

NK001)

Block wall evaluated per 14C4258-CAL-003.

Component per se screened. Anchorage 125 V BATTERY evaluated per 73 NK011 CB/CC 2016-00 0.4 Equipment Capacity NK011 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NK001.

Equipment capacity evaluated in 14C4258-ISOLATION BKR CAL-005. Anchorage 74 NK00101 FOR BATTERY CB 2016-00 0.71 Anchorage evaluated per NK011 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NK001.

Equipment capacity FDR BKR FOR evaluated in 14C4258-INVERTER NN011 CAL-005. Anchorage 75 NK00111 CB 2016-00 0.71 Anchorage (PART OF SWBD evaluated per NK001) 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Component per se screened. Anchorage 7.5KVA INVERTER evaluated per 76 NN011 (FED FROM BATT CB/CC 2016-00 0.4 Equipment Capacity 14C4258-CAL-004.

CHARGER NK021)

Block wall evaluated per 14C4258-CAL-003.

Component per se screened. Anchorage Class 1E AC DIST evaluated per 77 NN001 SWBD NN01 (SEP CB/CC 2016-00 0.4 Equipment Capacity 14C4258-CAL-004.

GRP 1)

Block wall evaluated per 14C4258-CAL-003.

Equipment capacity evaluated in 14C4258-STATUS 78 SA066A CB 2047-06 0.41 Anchorage CAL-005. Anchorage INDICATING SYS evaluated per 14C4258-CAL-005.

NEUTRON FLUX MONITORING 79 SENY0060A SYSTEM DETECTOR AUX 2026-00 >RLGM Screened SRT disposition AMPLIFIER SENY 60A NEUTRON FLUX MONITORING 80 SENY0060B SYSTEM DETECTOR AUX 2026-00 >RLGM Screened SRT disposition AMPLIFIER SENY 60B Equipment capacity W PROCESS evaluated in 14C4258-ANALOG 81 SB038 CB/CC 2047-06 0.41 Anchorage CAL-005. Anchorage PROTECTION SET evaluated per CAB-01 14C4258-CAL-005.

to ULNRC-06291 Page 48 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number Equipment capacity evaluated in 14C4258-W NUC INSTM NIS 82 SE054A CB/CC 2047-06 0.41 Anchorage CAL-005. Anchorage 1

evaluated per 14C4258-CAL-005.

BOP Equipment capacity INSTRUMENTATION evaluated in 14C4258-83 RP053AC RACK CB 2047-06 0.41 Anchorage CAL-005. Anchorage (TERMINATION evaluated per AREA) 14C4258-CAL-005.

Equipment capacity RPV LEVEL INSTR evaluated in 14C4258-84 SB078 SYS (RVLIS) PROC CB 2047-06 0.41 Anchorage CAL-005. Anchorage PROT SYS CABINET evaluated per 14C4258-CAL-005.

Equipment capacity evaluated in 14C4258-T/C SUBCOOLING 85 RP081A CB 2047-06 0.41 Anchorage CAL-005. Anchorage MONITOR CABINET evaluated per 14C4258-CAL-005.

Component per se screened. Anchorage CNTRL & INSTR evaluated per 86 NK041 DIST SWBD NK041 CB/CC 2016-00 0.4 Equipment Capacity 14C4258-CAL-004.

(CLASS 1E 125 VDC)

Block wall evaluated per 14C4258-CAL-003.

DIESEL GEN PNL 87 NE107 NE107 & FIELD DGB 2000-00 >RLGM Screened SRT disposition FLASHING Component per se TURBINE screened. Anchorage 88 RL005 GENERATOR AND CB 2047-06 0.4 Equipment Capacity evaluated per FW CONSOLE 14C4258-CAL-004.

Component per se TURBINE screened. Anchorage 89 RL006 GENERATOR AND CB 2047-06 0.4 Equipment Capacity evaluated per FW CONSOLE 14C4258-CAL-004.

90 RP315 DC DIST PNL RP315 ESW Pumphouse 2000-00 >RLGM Screened SRT disposition Component per se TURBINE screened. Anchorage 91 RL023 GENERATOR AND CB 2047-06 0.4 Equipment Capacity evaluated per FW MCB 14C4258-CAL-004.

Component per se TURBINE screened. Anchorage 92 RL024 GENERATOR AND CB 2047-06 0.4 Equipment Capacity evaluated per FW MCB 14C4258-CAL-004.

Component per se screened. Anchorage 93 RL017 ESF MCB CB 2047-06 0.4 Equipment Capacity evaluated per 14C4258-CAL-004.

Component per se screened. Anchorage 94 RL018 ESF MCB CB 2047-06 0.4 Equipment Capacity evaluated per 14C4258-CAL-004.

Component per se screened. Anchorage 95 RL019 ESF MCB CB 2047-06 0.4 Equipment Capacity evaluated per 14C4258-CAL-004.

to ULNRC-06291 Page 49 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number Component per se screened. Anchorage 96 RL020 ESF MCB CB 2047-06 0.4 Equipment Capacity evaluated per 14C4258-CAL-004.

Component per se REACTOR COOLANT screened. Anchorage 97 RL001 AND SUPT SYS CB 2047-06 0.4 Equipment Capacity evaluated per CONSOLE 14C4258-CAL-004.

Component per se REACTOR COOLANT screened. Anchorage 98 RL002 AND SUPT SYS CB 2047-06 0.4 Equipment Capacity evaluated per CONSOLE 14C4258-CAL-004.

Component per se TURBINE screened. Anchorage 99 RL025 GENERATOR AND CB 2047-06 0.4 Equipment Capacity evaluated per FW MCB 14C4258-CAL-004.

Component per se TURBINE screened. Anchorage 100 RL026 GENERATOR AND CB 2047-06 0.4 Equipment Capacity evaluated per FW MCB 14C4258-CAL-004.

FUSED 125 VDC 101 RP317 UHS 2000-00 >RLGM Screened SRT disposition DIST PNL RP317 Component per se screened. Anchorage CNTRL & INSTR evaluated per 102 NK051 DIST SWBD NK051 CB/CC 2016-00 0.4 Equipment Capacity 14C4258-CAL-004.

(CLASS 1E 125 VDC)

Block wall evaluated per 14C4258-CAL-003.

BBPCV0455A PORV 103 BBPCV0455A SOLENOID FAILS TO RB 2070-00 >RLGM Screened SRT disposition OPEN ON DEMAND Component per se REACTOR AUX screened. Anchorage 104 RL021 CB 2047-06 0.4 Equipment Capacity CNTRL PANEL evaluated per 14C4258-CAL-004.

Component per se REACTOR AUX screened. Anchorage 105 RL022 CB 2047-06 0.4 Equipment Capacity CNTRL PANEL evaluated per 14C4258-CAL-004.

DIESEL GAUGE AND 106 KJ0121 DGB 2000-00 >RLGM Screened SRT disposition CONTROL PANEL Component per se B AUXILIARY RELAY screened. Block wall 107 RP209 AUX 2000-00 0.4 Equipment Capacity RACK evaluated per 14C4258-CAL-003.

108 RP289 DC DIST PNL RP289 AUX 2047-06 >RLGM Screened SRT disposition Equipment capacity evaluated in 14C4258-MISC BOP 109 RP068 CB 2047-06 0.41 Anchorage CAL-005. Anchorage INSTRUMENT RACK evaluated per 14C4258-CAL-005.

AUX RELAY RACK 110 RP330 AUX 2000-00 >RLGM Screened SRT disposition RP330 B AUXILIARY RELAY 111 RP332 AUX 2000-00 >RLGM Screened SRT disposition RACK to ULNRC-06291 Page 50 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number Item is ROB to NK051.

Component per se EM'CY LIGHTING screened. Anchorage 112 NK051A DIST SWBD NK051A CB 2016-00 0.4 Equipment Capacity evaluated per (SUBPNL OF NK051) 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Component per se screened. Anchorage 125 V BATTERY evaluated per 113 NK023 CB/CC 2016-00 0.4 Equipment Capacity CHARGER NK023 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

TRANSFER SWITCH Component per se BUS NK03 BATTERY screened. Block wall 114 NK073 CB 2016-00 0.4 Equipment Capacity CHARGER evaluated per NK23/NK25 14C4258-CAL-003.

Equipment capacity evaluated in 14C4258-125 VDC BUS CAL-005. Anchorage 115 NK003 SWITCHBOARD CB/CC 2016-00 0.71 Anchorage evaluated per NK003 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NK003.

Equipment capacity evaluated in 14C4258-FDR BKR FROM CAL-005. Anchorage 116 NK00302 BATT CHGR NK023 CB 2016-00 0.71 Anchorage evaluated per TO NK003 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NK003.

Equipment capacity MAIN BREAKER evaluated in 14C4258-FOR CNTRL AND CAL-005. Anchorage 117 NK00304 DIST PNL NK043 CB 2016-00 0.71 Anchorage evaluated per (PART OF SWBD 14C4258-CAL-004.

NK003)

Block wall evaluated per 14C4258-CAL-003.

Component per se screened. Anchorage 125 V BATTERY evaluated per 118 NK013 CB/CC 2016-00 0.4 Equipment Capacity NK013 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NK003.

Equipment capacity evaluated in 14C4258-ISOLATION BKR CAL-005. Anchorage 119 NK00301 FOR BATTERY CB 2016-00 0.71 Anchorage evaluated per NK013 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NK003.

Equipment capacity FDR BKR FOR evaluated in 14C4258-INVERTER NN013 CAL-005. Anchorage 120 NK00311 CB 2016-00 0.71 Anchorage (PART OF SWBD evaluated per NK003) 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

to ULNRC-06291 Page 51 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number Component per se screened. Anchorage 7.5KVA INVERTER evaluated per 121 NN013 (FED FROM BATT CB/CC 2016-00 0.4 Equipment Capacity 14C4258-CAL-004.

CHARGER NK023)

Block wall evaluated per 14C4258-CAL-003.

Equipment capacity evaluated in 14C4258-Class 1E AC DIST CAL-005. Anchorage 122 NN003 SWBD NN03 (SEP CB/CC 2016-00 0.71 Anchorage evaluated per GRP 3) 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Equipment capacity evaluated in 14C4258-BOP INSTR RACK 123 RP053DB CB 2047-06 0.41 Anchorage CAL-005. Anchorage RP053DB evaluated per 14C4258-CAL-005.

Equipment capacity W PROCESS evaluated in 14C4258-ANALOG 124 SB037 CB/CC 2047-06 0.41 Anchorage CAL-005. Anchorage PROTECTION SET evaluated per CAB-03 14C4258-CAL-005.

Equipment capacity evaluated in 14C4258-W NUC INSTM NIS 125 SE054C CB/CC 2047-06 0.41 Anchorage CAL-005. Anchorage 3

evaluated per 14C4258-CAL-005.

Equipment capacity evaluated in 14C4258-CNTRL & INSTR CAL-005. Anchorage 126 NK043 DIST SWBD NK043 CB/CC 2016-00 0.71 Anchorage evaluated per (CLASS 1E 125 VDC) 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Component per se screened. Block wall 127 AB007 Aux Relay Rack CB 2016-00 0.4 Equipment Capacity evaluated per 14C4258-CAL-003.

Item is ROB to NG001.

Equipment capacity FDR BKR FOR 125 V evaluated in 14C4258-128 NG00109 SWING BATTERY CB 2000-00 0.41 Anchorage CAL-005. Anchorage CHARGER NK025 evaluated per 14C4258-CAL-004.

Component per se 125 V BATTERY screened. Anchorage CHARGER NK025 evaluated per 129 NK025 CB 2000-00 0.4 Equipment Capacity (Swing Battery 14C4258-CAL-004.

Charger) Block wall evaluated per 14C4258-CAL-003.

Equipment capacity evaluated in 14C4258-CAL-005. Anchorage 480 V LOAD 130 NG002 CB 2000-00 0.41 Anchorage evaluated per CENTER NG02 14C4258-CAL-005 Block wall evaluated per 14C4258-CAL-003.

to ULNRC-06291 Page 52 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number Item is ROB to NG002.

FLEX 500 kW TIE IN Equipment capacity BKR from FD201 evaluated in 14C4258-131 NG00212 CB 2000-00 0.41 Anchorage (Phase 2 CAL-005. Anchorage connection point) evaluated per 14C4258-CAL-005.

Item is ROB to NG002.

Equipment capacity FDR BKR FOR 125 V evaluated in 14C4258-132 NG00203 VITAL BATTERY CB 2000-00 0.41 Anchorage CAL-005. Anchorage CHARGER NK024 evaluated per 14C4258-CAL-005.

Component per se screened. Anchorage 125 V BATTERY evaluated per 133 NK024 CB 2016-00 0.4 Equipment Capacity CHARGER NK024 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

TRANSFER SWITCH Component per se BUS NK04 BATTERY screened. Block wall 134 NK074 CB 2016-00 0.4 Equipment Capacity CHARGER evaluated per NK24/NK26 14C4258-CAL-003.

Component per se screened. Anchorage 125 VDC BUS evaluated per 135 NK004 SWITCHBOARD CB 2016-00 0.4 Equipment Capacity 14C4258-CAL-004.

NK004 Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NK004.

FDR BKR FROM Component per se 136 NK00402 BATT CHGR NK024 CB 2016-00 0.4 Equipment Capacity screened. Anchorage TO NK004 evaluated per 14C4258-CAL-004.

Component per se screened. Anchorage 125 V BATTERY evaluated per 137 NK014 CB 2016-00 0.4 Equipment Capacity NK014 14C4258-CAL-004.

Block wall evaluated per 14C4258-CAL-003.

Item is ROB to NK004.

ISOLATION BKR Component per se 138 NK00401 FOR BATTERY CB 2016-00 0.4 Equipment Capacity screened. Anchorage NK014 evaluated per 14C4258-CAL-004.

Item is ROB to NK004.

FDR BKR FOR Component per se INVERTER NN011 139 NK00411 CB 2016-00 0.4 Equipment Capacity screened. Anchorage (PART OF SWBD evaluated per NK004) 14C4258-CAL-004.

Component per se 7.5KVA INVERTER screened. Block wall 140 NN014 (FED FROM BATT CB 2016-00 0.4 Equipment Capacity evaluated per CHARGER NK024) 14C4258-CAL-003.

Component per se screened. Anchorage Class 1E AC DIST evaluated per 141 NN004 SWBD NN04 (SEP CB 2016-00 0.4 Equipment Capacity 14C4258-CAL-004.

GRP 4)

Block wall evaluated per 14C4258-CAL-003.

to ULNRC-06291 Page 53 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number BOP 142 RP147B Instrumentation CB 2000-00 >RLGM Screened SRT disposition Rack RP147B NEUTRON FLUX MONITORING 143 SENY0061A SYSTEM DETECTOR AUX 2047-00 >RLGM Screened SRT disposition AMPLIFIER SENY 61A NEUTRON FLUX MONITORING 144 SENY0061B SYSTEM DETECTOR AUX 2047-00 >RLGM Screened SRT disposition AMPLIFIER SENY 61B Equipment capacity evaluated in 14C4258-W NUC INSTM NIS 145 SE054D CB 2047-06 0.41 Anchorage CAL-005. Anchorage 4

evaluated per 14C4258-CAL-005.

Equipment capacity W PROCESS evaluated in 14C4258-ANALOG 146 SB041 CB 2047-06 0.41 Anchorage CAL-005. Anchorage PROTECTION SET evaluated per CAB-04 14C4258-CAL-005.

Equipment capacity BOP evaluated in 14C4258-147 RP053BC Instrumentation CB 2047-06 0.41 Anchorage CAL-005. Anchorage Rack RP053BC evaluated per 14C4258-CAL-005.

Equipment capacity evaluated in 14C4258-RVLIS Process 148 SB079 CB 2047-06 0.41 Anchorage CAL-005. Anchorage Cabinet SB079 evaluated per 14C4258-CAL-005.

Equipment capacity evaluated in 14C4258-Subcooling Monitor 149 RP081B CB 2047-06 0.41 Anchorage CAL-005. Anchorage Cabinet evaluated per 14C4258-CAL-005.

W PROCESS 150 SB148B PROTECTION (Fire CB 2000-00 >RLGM Screened SRT disposition Isolation)

Equipment capacity evaluated in 14C4258-STATUS 151 SA066B CB 2047-06 0.41 Anchorage CAL-005. Anchorage INDICATING SYS evaluated per 14C4258-CAL-005.

Component per se screened. Block wall 152 RP140 PANEL RP140 CB 2000-00 0.4 Equipment Capacity evaluated per 14C4258-CAL-003.

Item is ROB to RL002.

Component per se BORIC ACID TANK A Note 5 BGLI0104 CB 2047-06 0.4 Equipment Capacity screened. Anchorage LEV evaluated per 14C4258-CAL-004.

BORIC ACID TANK A Note 5 BGLT0104 AUX 1974-00 >RLGM Screened SRT disposition LEV RWST SUPPLY TO Note 5 BNHV0003 CTMT SPRAY PUMP AUX 1974-00 >RLGM Screened SRT disposition B

to ULNRC-06291 Page 54 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number RWST SUPPLY TO Note 5 BNHV0004 CTMT SPRAY PUMP AUX 1974-00 >RLGM Screened SRT disposition A

RWST TO SAFETY Note 5 BNHV8806A INJ PUMP A AUX 1976-10 >RLGM Screened SRT disposition SUCTION RWST TO SAFETY Note 5 BNHV8806B INJ PUMP B AUX 1976-10 >RLGM Screened SRT disposition SUCTION RWST TO RHR Note 5 BNHV8812B AUX 1968-01 >RLGM Screened SRT disposition PUMP B SUCTION RWST Level Note 5 BNLT0933 YRD 1993-00 >RLGM Screened SRT disposition Transmitter Equipment capacity evaluated in 14C4258-CAL-005. Anchorage LOCAL CONTROL evaluated per Note 5 FC0219 PANEL FOR TD AFW AUX 2002-00 0.41 Equipment Capacity 14C4258-CAL-005.

PUMP Relay functionality evaluated per 14C4258-CAL-005.

Equipment capacity evaluated in 14C4258-CAL-005. Anchorage evaluated per Note 5 NG002B MCC NG02B BUS AUX 2026-00 0.4 Relay functionality 14C4258-CAL-004.

Relay functionality evaluated per 14C4258-CAL-005.

Equipment capacity evaluated in 14C4258-CAL-005. Anchorage evaluated per Note 5 NG003C MCC NG03C BUS AUX 2047-00 0.32 Relay functionality 14C4258-CAL-005.

Relay functionality evaluated per 14C4258-CAL-005.

Equipment capacity evaluated in 14C4258-CAL-005. Anchorage evaluated per Note 5 NG004C MCC NG04C BUS AUX 2047-00 0.32 Relay functionality 14C4258-CAL-005.

Relay functionality evaluated per 14C4258-CAL-005.

Component per se LOCKOUT RELAY screened. Block wall Note 5 RP334 CB 2000-00 0.4 Equipment Capacity RACK evaluated per 14C4258-CAL-003.

153 ABPT0514 Steam Generator A AUX 2026 >RLGM Screened SRT disposition Pressure Transmitter (Steam Generator Pressure) 154 ABPT0524 Steam Generator B AUX 2026 >RLGM Screened SRT disposition Pressure Transmitter (Steam Generator Pressure) 155 ABPT0534 Steam Generator C AUX 2026 >RLGM Screened SRT disposition Pressure to ULNRC-06291 Page 55 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number Transmitter (Steam Generator Pressure) 156 ABPT0544 Steam Generator D AUX 2026 >RLGM Screened SRT disposition Pressure Transmitter (Steam Generator Pressure) 157 ABPV0001 Steam Generator A AUX 2038 >RLGM Screened Valve functionality Atmospheric Steam demonstrated to Dump (Steam screen per analysis in Generator 15C4354-CAL-001.

Atmospheric Relief Valves) 158 ABPV0002 Steam Generator B AUX 2038 >RLGM Screened Valve functionality Atmospheric Steam demonstrated to Dump (Steam screen per analysis in Generator 15C4354-CAL-001.

Atmospheric Relief Valves) 159 AELT0529 Steam Generator B RB 2026 >RLGM Screened SRT disposition Narrow Range Level Transmitter (Steam Generator Water Level) 160 AELT0539 Steam Generator C RB 2026 >RLGM Screened SRT disposition Narrow Range Level Transmitter (Steam Generator Water Level) 161 BBHV8001A RCS Reactor Vessel RB 2047 >RLGM Screened Valve functionality Head Vent A demonstrated to Upstream Valve screen per analysis in (Reactor Head 15C4354-CAL-001.

Vent) 162 BBHV8002A RCS Reactor Vessel RB 2047 >RLGM Screened Valve functionality Head Vent A demonstrated to Downstream Valve screen per analysis in (Reactor Head 15C4354-CAL-001.

Vent) 163 BBPCV455A Pressurizer Power RB 2068 >RLGM Screened SRT disposition Operated Relief Valve (Pressurizer PORV) 164 BBPT0455 RCS Pressurizer RB 2026 >RLGM Screened SRT disposition Pressure Channel 1 (RCS Pressure) 165 BBTE0413A RCS LOOP 1 Wide RB 2000 >RLGM Screened SRT disposition Range Hot Leg Prot.

A Temperature Element (RCS Temperature) 166 BBTE0413B RCS LOOP 1 Wide RB 2000 >RLGM Screened SRT disposition Range Cold Leg Prot. A Temperature Element (RCS Temperature) 167 BBTE0423A RCS LOOP 2 Wide RB 2000 >RLGM Screened SRT disposition Range Hot Leg Prot.

A Temperature Element (RCS to ULNRC-06291 Page 56 of 59 ESEL Item ID Description Bldg Elev HCLPF Failure Mode Basis Number Temperature) 168 BBTE0423B RCS LOOP 2 Wide RB 2000 >RLGM Screened SRT disposition Range Cold Leg Prot. A Temperature Element (RCS Temperature) 169 EPHV8808A Accumulator Tank RB 2000 >RLGM Screened Valve functionality A Outlet Isolation demonstrated to Valve (Accumulator screen per analysis in Isolation Valves) 15C4354-CAL-001.

170 EPHV8808B Accumulator Tank RB 2000 >RLGM Screened Valve functionality B Outlet Isolation demonstrated to Valve (Accumulator screen per analysis in Isolation Valves) 15C4354-CAL-001.

171 EPHV8808C Accumulator Tank C RB 2000 >RLGM Screened Valve functionality Outlet Isolation demonstrated to Valve (Accumulator screen per analysis in Isolation Valves) 15C4354-CAL-001.

172 EPHV8808D Accumulator Tank RB 2000 >RLGM Screened Valve functionality D Outlet Isolation demonstrated to Valve (Accumulator screen per analysis in Isolation Valves) 15C4354-CAL-001.

173 GNPT0936 Containment AUX 2026 >RLGM Screened SRT disposition Atmospheric Pressure Channel 2 Pressure Transmitter (Containment Pressure) 174 GNPT0937 Containment AUX 2026 >RLGM Screened SRT disposition Atmospheric Pressure Channel 1 Pressure Transmitter (Containment Pressure) 175 TEP01A Safety Injection RB 2000 0.60 Anchorage Capacity Tank and anchorage Accumulator Tank evaluated per A (Accumulators) 15C4354-CAL-001.

176 TEP01B Safety Injection RB 2000 0.60 Anchorage Capacity Tank and anchorage Accumulator Tank evaluated per B (Accumulators) 15C4354-CAL-001.

177 TEP01C Safety Injection RB 2000 0.60 Anchorage Capacity Tank and anchorage Accumulator Tank C evaluated per (Accumulators) 15C4354-CAL-001.

178 TEP01D Safety Injection RB 2000 0.60 Anchorage Capacity Tank and anchorage Accumulator Tank evaluated per D (Accumulators) 15C4354-CAL-001.

to ULNRC-06291 Page 57 of 59 Insertion of Attachment C: Seismic Review Team to ULNRC-06291 Page 58 of 59 Attachment C: Seismic Review Team to ULNRC-06291 Page 59 of 59 The SRT consisted of seismic engineers from Stevenson & Associates. Brief resumes for team members are provided below.

Samer El-Bahey, Ph.D., P.E.

Dr. El-Bahey is a Senior Engineer and qualified SCE in the S&A Phoenix office with specialization in the dynamic analysis and design of structures and equipment for seismic, blast, fluid, and wind loads. He has performed seismic walkdowns and fragility analyses of structures and components associated with NTTF Recommendation 2.1, NTTF Recommendation 2.3, and ESEP, all including those performed at CEC. Dr.

El-Bahey has performed the seismic analyses of braced steel frames, concrete foundations, masonry walls, large storage tanks, and electrical and mechanical equipment anchorages. In addition, Dr. El-Bahey has executed the walkdown and analysis of tank structures and their associated leak path piping to assess loss of inventory in the event of beyond-design-basis seismic events using manual and finite element methods. Dr. El-Bahey has a Ph.D. and a Masters of Science in Structural Engineering from the State University of New York at Buffalo. He has received industry training as Seismic Capability Engineer (EPRI 5-day SQUG training) and completed the EPRI training for NTTF 2.3 plant seismic walkdowns. He is a licensed P.E. (civil) in California.

Apostolos Karavoussianis Mr. Karavoussianis is a senior consultant in the S&A Phoenix office. He has performed seismic walkdowns of structures and components at numerous facilities for the GIP A-46 and IPEEE programs.

Mr. Karavoussianis has also managed, led, or participated in several seismic walkdown initiatives associated with NTTF Recommendation 2.1 and NTTF Recommendation 2.3. He has also prepared, reviewed, and approved seismic evaluations for electrical and mechanical equipment. Mr.

Karavoussianis is a qualified Seismic Capable Engineer (SCE) and has completed the Seismic Qualification Utility Group (SQUG) Walkdown Screening and Seismic Evaluation Training Course.

Hunter A. Young, P.E.

Mr. Young is a Senior Engineer and qualified SCE in the S&A Phoenix office with specialization in structural dynamic analysis of structures and equipment for natural and man-made phenomena hazards. He has managed, led, or participated in over 20 seismic walkdown initiatives associated with NTTF Recommendation 2.1 (including WCGS), NTTF Recommendation 2.3 (including WCGS), EPRI NP-6695, and various S-PRA fragility endeavors. Mr. Young has a Master of Engineering in Structural Engineering from the Massachusetts Institute of Technology and Bachelors of Science in Civil Engineering (BSCE) from the University of Notre Dame. He is a licensed P.E. (civil) in California, Kansas, and Missouri and has completed the SQUG Walkdown Screening and Seismic Evaluation Training Course.