Text

2011/07/20 Watts Bar 2 OL - FW: Sser Item No.Jds.Docx
	ML11224A103
Person / Time
Site:	Watts Bar
Issue date:	07/20/2011
From:	; - No Known Affiliation
To:	; Division of Operating Reactor Licensing
References
	Download: ML11224A103 (20)
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1 WBN2Public Resource From: Boyd, Desiree L [dlboyd@tva.gov]

Sent: Wednesday, July 20, 2011 10:01 AM To: Poole, Justin; Milano, Patrick; Campbell, Stephen Cc: Arent, Gordon; Smith, James D; Bryan, Rober t H Jr; Smith, James D; Crouch, William D

Subject:

FW: SSER Item No.JDS.docx Attachments:SSER Item No.JDS.docx For the next TVA/NRC SSER status telecom.

~*~*~*~*~*~*~*~*~*~*~*~

Désireé L. Boyd WBN 2 Licensing Support Sun Technical Services dlboyd@tva.gov 423-365-8764

Hearing Identifier: Watts_Bar_2_Operating_LA_Public Email Number: 476 Mail Envelope Properties (7AB41F650F76BD44B5BCAB7C0CCABFAF210B6D97)

Subject:

FW: SSER Item No.JDS.docx Sent Date: 7/20/2011 10:01:20 AM Received Date: 7/20/2011 10:02:32 AM From: Boyd, Desiree L Created By: dlboyd@tva.gov Recipients: "Arent, Gordon" <garent@tva.gov>

Tracking Status: None "Smith, James D" <jdsmith@tva.gov>

Tracking Status: None "Bryan, Robert H Jr" <rhbryan@tva.gov> Tracking Status: None "Smith, James D" <smith1jd@westinghouse.com> Tracking Status: None "Crouch, William D" <wdcrouch@tva.gov> Tracking Status: None "Poole, Justin" <Justin.Poole@nrc.gov> Tracking Status: None "Milano, Patrick" <Patrick.Milano@nrc.gov> Tracking Status: None "Campbell, Stephen" <Stephen.Campbell@nrc.gov>

Tracking Status: None Post Office: TVANUCXVS2.main.tva.gov Files Size Date & Time MESSAGE 262 7/20/2011 10:02:32 AM SSER Item No.JDS.docx 46828 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received:

SSER Item No. SSER Item Description Disposition TVA Status 1. Review evaluations and corrective actions associated with a power assisted cable pull. (NRC safety evaluation dated August 31, 2009, ADAMS Accession No. ML092151155)

For NRC Inspection / Review Complete - Addressed by Maximo Commitment Closure package 10181059

2. Conduct appropriate inspection activities to verify cable lengths used in calculations and analysis match as-installed configuration. (NRC safety evaluation dated August 31, 2009, ADAMS Accession No. ML092151155)

For NRC Inspection / Review Provide NRC Residents access to as-constructed ICRDS database and associated calcs.

Due date:02/29/2012 (Khan)

Note: Pending completion of the cable pull effort and updating ICRDS for as-installed cable lengths by construction.

3. Confirm TVA submitted update to FSAR section 8.3.1.4.1. (NRC safety evaluation dated August 31, 2009, ADAMS Accession No. ML092151155)Response provided in TVA to NRC letter dated April 6, 2011. Complete 4. Conduct appropriate inspection activities to verify that TVA's maximum SWBP criteria for signal level and coaxial cables do not exceed the cable manufacturers maximum SWBP criteria. (NRC safety evaluation dated August 31, 2009, ADAMS Accession No. ML092151155)

Closed by IR 2010604 Complete

5. Verify timely submittal of pre-startup core map and perform technical review. (TVA letter dated September 7, 2007, ADAMS Accession No. ML072570676)

Response provided in TVA to NRC letter dated April 6, 2011. Complete 6. Verify implementation of TSTF-449. (TVA letter dated September 7, 2007, ADAMS Accession No. ML072570676)

Response provided in TVA to NRC letter dated April 6, 2011. Complete 7. Verify commitment completion and review electrical design calculations. (TVA letter dated October 9, 1990, ADAMS Accession No. ML073551056)

For NRC Inspection / Review See commitments in TVA Letter. Provide NRC Residents a copy of related electrical calculation procedures and provide NRC access to calculations Due date: 8/1/11 (Khan)

SSER Item No. SSER Item Description Disposition TVA Status 8. Verify rod control system operability during power ascension. TVA should provide a pre-startup map to the NRC staff indicating the rodded fuel assemblies and a projected end of cycle burnup of each rodded assembly for the initial fuel cycle 6-months prior to fuel load. (NRC safety evaluation dated May 3, 2010, ADAMS Accession No. ML101200035)Response provided in TVA to NRC letter dated April 6, 2011. Complete 9. Confirm that education and experience of management and principal supervisory positions down through the shift supervisory level conform to Regulatory Guide 1.8. (Section 13.1.3)

For NRC Inspection / Review Obtain education and experience information from WBN Human Resources and provide info to NRC Residents.

Due date: 7/15/11 (Elton)

10. Confirm that TVA has an adequate number of licensed and non-licensed operators in the training pipeline to support the preoperational test program, fuel loading, and dual unit operation. (Section 13.1.3)

TVA to answer later. Provide submittal that confirms we have adequate personnel in the pipeline.

Due date: 7/22/11 (Wallace)

11. The plant administrative procedures should clearly state that, when the Assistant Shift Engineer assumes his duties as Fire Brigade Leader, his control room duties are temporarily assumed by the Shift Supervisor (Shift Engineer), or by another SRO, if one is available. The plant administrative procedures should clearly describe this transfer of control room duties. (Section 13.1.3)

For NRC Inspection / Review Provide NRC Residents copy of procedure that provides the controls of this function.

Due date: 7/22/11 (Wallace)

12. TVA's implementation of NGDC PP-20 and EDCR Appendix J is subject to future NRC audit and inspection. (Section 25.9)

For NRC Inspection / Review Complete

13. TVA is expected to submit an IST program and specific relief requests for WBN Unit 2 nine months before the projected date of OL issuance. (Section 3.9.6) TVA to answer later. Provide submittal addressing IST program and relief requests.

Due date: 7/22/11 (Tinley)

14. TVA stated that the Unit 2 PTLR is included in the Unit 2 System Description for the Reactor Coolant System (WBN2-68-4001), which will be revised to reflect Response provided in TVA to NRC letter dated April 6, 2011. Complete SSER Item No. SSER Item Description Disposition TVA Status required revisions to the PTLR by September 17, 2010. (Section 5.3.1)

15. TVA should confirm to the NRC staff the completion of Primary Stress Corrosion Cracking (PWSCC) mitigation activities on the Alloy 600 dissimilar metal butt welds (DMBWs) in the primary loop piping. (Section 3.6.3)

Response provided in TVA to NRC letter dated April 6, 2011. Complete 16. Based on the uniqueness of EQ, the NRC staff must perform a detailed inspection and evaluation prior to fuel load to determine how the WBN Unit 2 EQ program complies with the requirements of 10 CFR 50.49. (Section 3.11.2)

For NRC Inspection / Review Provide NRC Residents copies of EQ documents as requested for the onsite inspections.

Due date: Ongoing Inspection (Khan) 17. The NRC staff should verify the accuracy of the WBN Unit 2 EQ list prior to fuel load. (Section 3.11.2.1)

For NRC Inspection / Review Provide NRC Residents copies of EQ documents as requested for the onsite inspections.

Due date: Ongoing Inspection (Khan) 18. Based on the extensive layup period of equipment within WBN Unit 2, the NRC staff must review, prior to fuel load, the assumptions used by TVA to re-establish a baseline for the qualified life of equipment. The purpose of the staff's review is to ensure that TVA has addressed the effects of environmental conditions on equipment during the layup period. (Section 3.11.2.2)

Response provided in TVA to NRC letter dated April 6, 2011. Complete 19. The NRC staff should complete its review of TVA's EQ Program procedures for WBN Unit 2 prior to fuel load. (Section 3.11.2.2.1)

For NRC Inspection / Review Provide NRC Residents copies of EQ documents as requested for the onsite inspection

Complete - Expect NRC to close in next inspection report

20. Resolve whether or not routine maintenance activities should result in increasing the EQ of the 6.9 kV motors to Category I status in accordance with 10 CFR 50.49. (Section 3.11.2.2.1).

Response provided in TVA to NRC letter dated April 6, 2011. Complete SSER Item No. SSER Item Description Disposition TVA Status 21. The NRC staff should confirm that the Electrical Penetration Assemblies (EPAs) are installed in the tested configuration, and that the feedthrough module is manufactured by the same company and is consistent with the EQ test report for the EPA. (Section 3.11.2.2.1)

For NRC Inspection / Review Complete - Provided NRC Residents (Russ Lewis) copies of EQ documents as requested for the onsite inspection Complete (Khan)

22. TVA must clarify its use of the term "equivalent" (e.g., identical, similar) regarding the replacement terminal blocks to the NRC staff. If the blocks are similar, then a similarity analysis should be completed and presented to the NRC for review. (Section 3.11.2.2.1)

Response provided in TVA to NRC letter dated April 6, 2011. Complete 23. Resolve whether or not TVA's reasoning for not upgrading the MSIV solenoid valves to Category I is a sound reason to the contrary, as specified in 10 CFR 50.49(l). (Section 3.11.2.2.1)

Response provided in TVA to NRC letter dated April 6, 2011. Complete 24. The NRC staff requires supporting documentation from TVA to justify its establishment of a mild environment threshold for total integrated dose of less than 1x10 3 rads for electronic components such as semiconductors or electronic components containing organic material. (Section 3.11.2.2.1)Response provided in TVA to NRC letter dated April 6, 2011. Complete 25. Prior to the issuance of an operating license, TVA is required to provide satisfactory documentation that it has obtained the maximum secondary liability insurance coverage pursuant to 10 CFR 140.11(a)(4), and not less than the amount required by 10 CFR 50.54(w) with respect to property insurance, and the NRC staff has reviewed and approved the documentation. (Section 22.3)

TVA to answer later. Provide Insurance coverage submittal.

Due date: 10/1/11 (Smith)

26. For the scenario with an accident in one unit and concurrent shutdown of the second unit without offsite power, TVA stated that Unit 2 pre-operational testing will validate the diesel re sponse to sequencing of loads on the Unit 2 emergency diesel generators (EDGs). The NRC staff will evaluate the status of this issue and will update the status of the EDG load response in a future SSER. (Section 8.1)Response provided in TVA to NRC letter dated April 6, 2011. Complete SSER Item No. SSER Item Description Disposition TVA Status 27. TVA should provide a summary of margin studies based on scenarios described in Section 8.1 for CSSTs A, B, C, and D. (Section 8.2.2)

Response provided in TVA to NRC letter dated April 6, 2011. Complete 28. TVA should provide to the NRC staff a detailed discussion showing that the load tap changer is able to maintain the 6.9 kV bus voltage control band given the normal and post-contingency transmission operating voltage band, bounding voltage drop on the grid, and plant conditions. (Section 8.2.2)

Response provided in TVA to NRC letter dated April 6, 2011. Complete 29. TVA should provide the transmission system specifics (grid stability analyses) to the NRC staff. In order to verify compliance with GDC 17, the results of the grid stability analyses must indicate that loss of the largest electric supply to the grid, loss of the largest load from the grid, loss of the most critical transmission line, or loss of both units themse lves, will not cause grid instability. (Section 8.2.2)Response provided in TVA to NRC letter dated June 7, 2011. Complete 30. TVA should confirm that all other safety-related equipment (in addition to the Class 1E motors) will have adequate starting and running voltage at the most limiting safety related components (such as motor operated valves, contactors, solenoid valves or relays) at the degraded voltage relay setpoint dropout setting. TVA should also confirm that the final Technical Specifications are properly derived from these analytical values for the degraded voltage settings. (Section 8.3.1.2)TVA to answer later. Provide response for submittal to NRR.

Due date: 8/1/11 (Hilmes)

Note: This issue is with Corporate Licensing to resolve on Unit 1. Unit 2 resolution will be the same as it is for Unit 1.

31. TVA should evaluate the re-sequencing of loads, with time delays involved, in the scenario of a LOCA followed by a delayed LOOP, and ensure that all loads will be sequenced within the time assumed in the accident analysis. (Section 8.3.1.11)

Response provided in TVA to NRC letter dated April 6, 2011.

Complete.

32. TVA should provide to the NRC staff the details of the administrative limits of EDG voltage and speed range, and the basis for its conclusion that the impact is negligible, and describe how it accounts for the administrative limits in the Technical Specification TVA to answer later. Provide response for submittal to NRR. Due date: 8/1/11 (Hilmes)

SSER Item No. SSER Item Description Disposition TVA Status surveillance requirements for EDG voltage and frequency. (Section 8.3.1.14)

33. TVA stated in Attachment 9 of its letter dated July 31, 2010, that certain design change notices (DCNs) are required or anticipated for completion of WBN Unit 2, and that these DCNs were unverified assumptions used in its analysis of the 125 V dc vital battery system. Verification of completion of these DCNs to the NRC staff is necessary prior to issuance of the operating license. (Section 8.3.2.3)Response provided in TVA to NRC letter dated April 6, 2011.

Complete.

34. TVA stated that the method of compliance with Phase I guidelines would be substantially similar to the current Unit 1 program and that a new Section 3.12 will be added to the Unit 2 FSAR that will be materially equivalent to Section 3.12 of the current Unit 1 FSAR. (Section 9.1.4)

Response provided in TVA to NRC letter dated April 6, 2011.

Complete.

35. TVA should provide information to the NRC staff that the CCS will produce feedwater purity in accordance with BTP MTEB 5-3 or, alternatively, provide justification for producing feedwater purity to another acceptable standard. (Section 10.4.6)Response provided in TVA to NRC letter dated June 7, 2011.

Complete.

36. TVA should provide information to the NRC staff to enable verification that the SGBS meets the requirements and guidance specified in the SER or provide justification that the SGBS meets other standards that demonstrate conformance to GDC 1 and GDC 14. (Section 10.4.8)

Response provided in TVA to NRC letter dated April 6, 2011.

Complete.

37. The NRC staff will review the combined WBN Unit 1 and 2 Appendix C prior to issuance of the Unit 2 OL to confirm (1) that the proposed Unit 2 changes were incorporated into Appendix C, and (2) that changes made to Appendix C for Unit 1 since Revision 92 and the changes made to the NP-REP since Revision 92 do not affect the bases of the staff's findings in this SER supplement. (Section 13.3.2)

TVA to answer later. Submit final Unit 1/2 REP to NRC Due date: October 1, 2011

38. The NRC staff will confirm the availability and operability of the ERDS for Unit 2 prior to issuance of For NRC Inspection / Review The Emergency Response Data System software has SSER Item No. SSER Item Description Disposition TVA Status the Unit 2 OL. (Section 13.3.2.6) previously been modified and tested for the Watts Bar Unit 2 addition. This unit can be selected from the ERDS menu to send data to the NRC at this time. In addition, the software has been developed and tested to send data from the WBN PEDS to the CECC. However, the official list of points for Watts Bar Unit 2 has not been provided by Unit 2 Design Engineering and, until this has been completed and submitted to the Computer Engineering Group for addition to the ERDS software, official testing of the software for this unit cannot be completed with the NRC in order to declare the WBN ERDS Unit 2 operational. This list is derived from the official Data Point List. Once developed, Unit 2 Licensing submits the data to the NRC. Once this list has been

received by the NRC, it would require one month to add the list to the NRC data systems, write the test, schedule the test with TVA/NRC, run the test, and TVA submit the results.

Due date: 10/1/11

39. The NRC staff will confirm the adequacy of the communications capability to support dual unit For NRC Inspection / Review Provide NRC Residents copies of related documents as SSER Item No. SSER Item Description Disposition TVA Status operations prior to issuance of the Unit 2 OL. (Section 13.3.2.6) requested for the onsite inspection. This item is covered by the response to

Item 38 Due date: See Item 38

40. The NRC staff will confirm the adequacy of the emergency facilities and equipment to support dual unit operations prior to issuance of the Unit 2 OL. (Section 13.3.2.8)

For NRC Inspection / Review Perform self assessment to verify processes and materials in main control room, TSC, OSC, EOF and local recivery facility. Provide NRC Residents copies of self assessment documents for the onsite inspection.

Due date: 10/1/11

41. TVA committed to (1) update plant data displays as necessary to include Unit 2, and (2) to update dose assessment models to provide capabilities for assessing releases from both WBN units. The NRC staff will confirm the adequacy of these items prior to issuance of the Unit 2 OL. (Section 13.3.2.9)

For NRC Inspection / Review 1) Provide demonstration of capability of SPDS, ICS and PEDS data system displays for

Unit 2. Due date: 7/1/12

2) Submit EPIP-13. Describe RED, FRED and BRED data systems..

Due date: 10/1/11

42. The NRC staff will confirm the adequacy of the accident assessment capabilities to support dual unit operations prior to issuance of the Unit 2 OL. (Section

13.3.2.9) For NRC Inspection / Review Covered by Item 41 (1)

Due date: See Item 41(1)

43.Section V of Appendix E to 10 CFR Part 50 requires TVA to submit its detailed implementing procedures for its emergency plan no less than 180 days before the scheduled issuance of an operating license. Completion of this requirement will be confirmed by TVA to answer later. Submit Unit 1/2 REP implementing procedures (EPIP-1 thru EPIP-17) to NRC

Due date: October 1, 2011 SSER Item No. SSER Item Description Disposition TVA Status the NRC staff prior to the issuance of an operating license. (Section 13.3.2.18)

(Detchemendy)

44. TVA should provide additional information to clarify how the initial and irradiated RT NDT was determined. (Section 5.3.1)

Response provided in TVA to NRC letter dated April 6, 2011.

Complete.

45. TVA stated in its response to RAI 5.3.2-2, dated July 31, 2010, that the PTLR would be revised to incorporate the COMS arming temperature. (Section 5.3.2) Response provided in TVA to NRC letter dated April 6, 2011.

Complete.

46. The LTOP lift settings were not included in the PTLR, but were provided in TVA's response to RAI 5.3.2-2 in its letter dated July 31, 2010. TVA stated in its RAI response that the PTLR would be revised to incorporate the LTOP lift settings into the PTLR.

(Section 5.3.2)

Response provided in TVA to NRC letter dated April 6, 2011.

Complete.

47. The NRC staff noted that TVA's changes to Section 6.2.6 in FSAR Amendment 97, regarding the implementation of Option B of Appendix J, were incomplete, because several statements remained regarding performing water-sealed valve leakage tests "as specified in 10 CFR [Part] 50, Appendix J." With the adoption of Option B, the specified testing requirements are no longer applicable; Option A to Appendix J retains these requirements. The NRC discussed this discrepancy with TVA in a telephone conference on September 28, 2010. TVA stated that it would remove the inaccurate reference to Appendix J for specific water testing requirements in a future FSAR amendment. (Section 6.2.6)

Response provided in TVA to NRC letter dated June 7, 2011. However, one Note was missed. A105 to correct oversight.

48. The NRC staff should verify that its conclusions in the review of FSAR Section 15.4.1 do not affect the conclusions of the staff regarding the acceptability of Section 6.5.3. (Section 6.5.3)

Response provided in TVA to NRC letter dated June 7, 2011.

Complete.

49. The NRC staff was unable to determine how TVA linked the training qualification requirements of ANSI N45.2-1971 to TVA Procedure TI-119. Therefore, the implementation of training and qualification for For NRC Inspection / Review Provided NRC Residents how the refurb training requirements are linked to the ANSI standard. Provided the training SSER Item No. SSER Item Description Disposition TVA Status inspectors will be the subject of future NRC staff inspections. (NRC letter dated July 2, 2010, ADAMS Accession No. ML101720050) records for refurb inspectors.

Due date: Complete

50. TVA stated that about 5 percent of the anchor bolts for safety-related pipe supports do not have quality control documentation, because the pull tests have not yet been performed. Since the documentation is still under development, the NRC staff will conduct inspections to follow-up on the adequate implementation of this construction refurbishment program requirement. (NRC letter dated July 2, 2010, ADAMS Accession No. ML101720050)

For NRC Inspection / Review Notify NRC Residents of anchor bolt pull tests.

Due date: July 1, 2011 (Adair)

51. The implementation of TVA Procedure TI-119 will be the subject of NRC follow-up inspection to determine if the construction refurbishment program requirements are being adequately implemented. (NRC letter dated July 2, 2010, ADAMS Accession No. ML101720050)For NRC Inspection / Review Provide NRC Residents the results of the refurb program.

Due date: Ongoing Inspection (Moll) 52[A] TVA should provide an update to the FSAR replacing Table 12.2-3 with the expected source strength values of the freshly irradiated IITAs. (Section 12.3) Response provided in TVA to NRC letter dated June 7, 2011.

Complete. 53 TVA should provide an update to the FSAR reflecting the information provided in its letter dated October 4, 2010, regarding the WBN radiation protection design features, including controlled access areas, decontamination areas, and onsite laboratories and counting rooms. (Section 12.4) 54 TVA should provide adequate technical justification to the staff to relax the frequency of the radiation monitor channel quarterly operability tests. TVA should provide sufficient information to the staff to determine

that the portable airborne radiation monitors comply with the requirements of 10 CFR 20.1501. TVA should provide sufficient information to the staff to determine that the licensing or TVA program requirements for the calibration and operability testing of area radiation monitors are sufficient to meet the regulatory requirements of 10 CFR 20.1501. (Section On bucket list.

SSER Item No. SSER Item Description Disposition TVA Status 12.4) 55 TVA should provide sufficient information to the staff to demonstrate that the two area radiation monitors for the Spent Fuel Pit comply with the requirements of 10 CFR 70.24 and 10 CFR 50.68 for radiation monitoring in areas where fuel is handled or stored. (Section 12.4) Send clarifying letter. 56 TVA should update the FSAR to reflect the information regarding the dose assessment program provided in its letter the the NRC dated June 3, 2010. (Section 12.5) 57 TVA should update the FSAR to reflect the qualification standards of the RPM as provided in its letter to the NRC dated October 4, 2010. (Section

12.6) 58 The staff has insufficient information to conclude that TVA has taken appropriate actions to reduce radiation levels and increase the capability of operators to control and mitigate the consequences of an accident at WBN Unit 2, in accordance with the guidance of NUREG-0737, Item II.B.2, or can maintain occupational doses to plant operators within the requirements of GDC 19. Therefore, the staff cannot conclude that the plant shielding for WBN Unit 2 is acceptable. (Section 12.7.1) 59[B] The staff's evaluation of the compatibility of the ESF system materials with containment sprays and core cooling water in the event of a LOCA is incomplete pending resolution of GSI-191 for WBN Unit 2. (Section 6.1.1.4) Response provided in TVA to NRC letter dated June 7, 2011. Complete 60[C] TVA should amend the FSAR description of the design and operation of the spent fuel pool cooling and cleanup system in FSAR Section 9.1.3 as proposed in its December 21, 2010, letter to the NRC.

(Section 9.1.3) Response provided in TVA to NRC letter dated June 7, 2011. Complete 61[D] TVA should provide information to the NRC staff to demonstrate that PAD 4.0 can conservatively Will result in a License Condition.

SSER Item No. SSER Item Description Disposition TVA Status calculate the fuel temperature and other impacted variables, such as stored energy, given the lack of a fuel thermal conductivity degradation model. (Section

4.2.2.1) 62[E] Confirm TVA's change to FSAR Section 10.4.9 to reflect its intention to operate with each CST isolated from the other. (Section 10.4.9) Response provided in TVA to NRC letter dated June 7, 2011. Complete 63[F] TVA should confirm to the NRC staff that testing prior to Unit 2 fuel load has demonstrated that two-way communications is impossible with the Eagle 21 communications interface. (Section 7.2.1.1) TVA to answer later.

Complete - This will be addressed by a License Condition 64[G] TVA stated that, "Post modification testing will be performed to verify that the design change corrects the Eagle 21, Rack 2 RTD accuracy issue prior to WBN Unit 2 fuel load. This issue is open pending NRC review of the testing results. For NRC Inspection / Review Provide requested info Due Date: Need FDCN date from Westinghouse 65[H] TVA should provide justification to the staff regarding why different revisions of WCAP-13869 are referenced in WBN Unit 1 and Unit 2. (Section 7.2.1.1) Response provided in TVA to NRC letter dated June 7, 2011. Provide requested info

Due Date: 6/15/11 (Hilmes) 66[I] TVA should clarify FSAR Section 9.2.5 to add the capability of the UHS to bring the non accident unit to cold shutdown within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. (SRP Section 9.2.5) TVA to answer later.

A102 provided update to FSAR Section 9.2.2.4 to cover this question for both ERCW and

CCS. Additional Info from 4/13 submittal required

Due Date: 7/15/11 (Koontz) 67[J] TVA should confirm, and the NRC staff should verify, that the component cooling booster pumps for Unit 2 are above PMF level. (Section 9.2.2) For NRC Inspection / Review Provide EDCR closure documentation for installation of CCS thermal barrier booster pump dike.

Due Date:

68[K] TVA should clarify to the NRC staff how the CSS complies with GDC 5. (Section 9.2.2) TVA to answer later. A102 provided update.

Additional Info from 4/13 submittal required

Due Date: 7/15/11 (Koontz)

SSER Item No. SSER Item Description Disposition TVA Status 69[L] The WBN Unit 2 RCS vent system is acceptable, pending verification that the RCS vent system is installed. (Section 5.4.5) For NRC Inspection / Review Provide EDCR closure documentation for installation of ECCS vents. EDCR numbers 52637 (RHR) [P3 Completion Date 6/7/11], 53311 (SI) [P3 Completion Date 8/25/11]

Due Date: See above 70[M] TVA should provide the revised WBN Unit 2 PSI program ASME Class 1, 2, and 3 Supports "Summary Tables," to include numbers of components so that the NRC staff can verify that the numbers meet the reference ASME Code. (Section 3.2.3 of Appendix Z of this SSER) TVA to answer later.

Provide requested info

Due Date: 11/1/11 (Tinley) 71[N] TVA should confirm to the staff the replacement of the current Unit 2 clevis insert bolts to the latest design, which uses an X-750 alloy with an HTH process, rolled threads, and a larger radius on the undercut of the cap screw head. (Section 3.9.5) Response provided in TVA to NRC letter dated June 7, 2011. Complete 72[O] Based on its review, the staff asked TVA several questions regarding the ICC instrumentation. TVA responded to the staff questions by letter dated October 26, 2010 (ADAMS Accession No. ML103020322). The NRC staff has not completed the review of the additional information provided by TVA. The staff will provide its evaluation after completion of that review. (Section 4.4.8) For NRC Inspection / Review Open pending NRC review 73[P] The NRC staff will inspect to confirm that TVA has completed the WBN Unit 2 EOPs prior to fuel load. (Section 7.5.3) For NRC Inspection / Review Provide copies of EOPs for inspection.

Due Date: 2/1/12 (Wallace) 74[Q] The NRC staff will verify in stallation of the acoustic-monitoring system for the power-operated relief valve (PORV) position indication in WBN Unit 2 before fuel load. (Section 7.8.1) For NRC Inspection / Review Provide EDCR closure documentation for installation of acoustic monitors.

SSER Item No. SSER Item Description Disposition TVA Status Panels installed 5/18/11 Probes not installed

Due Date: 75[R] The NRC staff will verify that the test procedures and qualification testing for auxiliary feedwater initiation and control and flow indication are completed in WBN Unit 2 before fuel load. (Section 7.8.2) For NRC Inspection / Review Provide copies of test procedures for inspection.

Due Date: 7/1/12 (Olson) 76[S] The NRC staff will verify that the derivative time constant is set to zero in WBN Unit 2 before fuel load.

(Section 7.8.3) For NRC Inspection / Review Provide EDCR closure documentation for setting of time constant.

Due Date: 7/10/11 77 It is unclear to the NRC staff which software V&V documents are applicable to the HRCAR monitors. TVA should clarify which software V&V documents are applicable, in order for the staff to complete its evaluation. (Section 7.5.2.3) 78 TVA intends to issue a revised calculation reflecting that the TID in the control room is less than 10 3 rads, which will be evaluated by the NRC staff. (Section 7.5.2.3) 79 TVA should perform a radiated susceptibility survey, after the installation of the hardware but prior to the RM-1000 being placed in service, to establish the need for exclusion distance for the HRCAR monitors while using handheld portable devices (e.g., walkie-talkie) in the control room, as documented in Attachment 23 to TVA's letter dated February 25, 2011, and item number 355 of TVA's letter dated April 15, 2011. (Section 7.5.2.3) 80 TVA should provide clarification to the staff on how TVA Standard Specification SS-E18-14.1 meets the guidance of RG 1.180, and should address any deviations from the guidance of the RG. (Section 7.5.2.3) 81 The extent to which TVA's supplier, General Atomics SSER Item No. SSER Item Description Disposition TVA Status (GA), complies with EPRI TR-106439 and the methods that GA used for its commercial dedication process should be provided by TVA to the NRC staff for review. (Section 7.5.2.3) 82 The staff concluded that the information provided by TVA pertaining to the in-containment LPMS equipment qualification for vibration was incomplete.

TVA should provide (item number 362 of ADAMS Accession No. ML111050009), documentation that demonstrates the LPMS in-containment equipment has been qualified to remain functional in its normal operating vibration environment, per RG 1.133, Revision 1. (Section 7.6.1) 83 TVA should confirm to the NRC staff the completion of the data storm test on the DCS. (Section 7.7.1.4) 84 TVA should provide additional information for the NRC staff to complete its review of post-LOCA long term cooling boric acid precipitation. (Section 15.3.1)

Response to be provided in accordance with recent NRC

Audit. Letter to be provided by 7/19/11. 85 The 95/95 peak local oxidation was calculated to be 1.04 percent, while core-wide oxidation was calculated to be much less than 0.1 percent. TVA should provide to the NRC staff the value of the decay heat multiplier used for this limiting large break, in order for the staff to complete its evaluation. (Section 15.3.1)

Response to be provided in accordance with recent NRC Audit. Letter to be provided by 7/19/11 86 TVA should demonstrate to the staff, in the WCOBRA/TRAC analysis of the limiting break, that the core remains covered with a two-phase mixture and can be cooled for an indefinite period of time. (Section 15.3.1)

Response to be provided in accordance with recent NRC Audit. Letter to be provided by 7/19/11 87 In order for the staff to complete its evaluation, TVA should provide (1) a time step sensitivity study for the limiting break displaying downcomer boiling, (2) a list of ten key parameter plots for the worst case downcomer boiling transien t, (3) values for the lateral k-factors used in the evaluation, and (4) the manner in which condensation was modeled in the downcomer. (Section 15.3.1)

Response to be provided in accordance with recent NRC

Audit. Letter to be provided by 7/19/11 SSER Item No. SSER Item Description Disposition TVA Status 88 It is also unclear to the staff that the entrainment correlation information has been incorporated into the EOP, to ensure that operators do not initiate hot and cold side injection during the period of time that entrainment could preclude injection into the hot legs. TVA should provide the EOP guidance/instructions for the operators to the staff for review. (Section 15.3.1)

Response to be provided in accordance with recent NRC Audit. Letter to be provided by 7/19/11 89 TVA should demonstrate, quantitatively, the applicability of the generic analysis to WBN Unit 2, to demonstrate that the EOP instructions to the operators can effectively deal with the failure of a bottom mounted instrument tube in the lower head. (Section

15.3.1) Response to be provided in accordance with recent NRC Audit. Letter to be provided by 7/19/11 90 Verify that the ERCW pumps meet GDC 5 requirements for two unit operation. (Section 9.2.1)

No response necessary. Region II to inspect. 91 TVA should update the FSAR with information describing how WBN Unit 2 meets GDC 5, assuming the worst case single failure and a LOOP, as provided in TVA's letter dated April 13, 2011. (Section 9.2.1) 92 The NRC staff should perform an inspection in accordance with NRC Temporary Instruction 2515/087, "Inspection of Licensee's Implementation of Multi-Plant Action A-17: Instrumentation for Nuclear Power Plants to Assess Plant and Environs Conditions During and Following an Accident (Regulatory Guide 1.97)." (Section 7.5.2.1.4)

No response necessary. NRC to determine if open item needed. 93 TVA should confirm to the staff that testing of the Eagle 21 system has sufficiently demonstrated that two-way communication to the ICS is precluded with the described configurations. (Section 7.9.3.2)