ML103090745

OL - FW: Update NRC RAI Matrix

ML103090745
Person / Time
Site:	Watts Bar
Issue date:	11/02/2010
From:	Office of Nuclear Reactor Regulation
To:	Division of Operating Reactor Licensing
References
Download: ML103090745 (53)

Text

WBN2Public Resource From: Poole, Justin Sent: Tuesday, November 02, 2010 5:08 PM To: Garg, Hukam; Carte, Norbert; Darbali, Samir; Singh, Gursharan; Marcus, Barry Cc: WBN2HearingFile Resource

Subject:

FW: Update NRC RAI Matrix Attachments: 20101028 Open Item List and Count TVA Update 11-2 R1.docx Justin C. Poole Project Manager NRR/DORL/LPWB U.S. Nuclear Regulatory Commission (301)4152048 email: Justin.Poole@nrc.gov From: Clark, Mark Steven [1]

Sent: Tuesday, November 02, 2010 5:06 PM To: Crouch, William D; Hilmes, Steven A Cc: Poole, Justin

Subject:

Update NRC RAI Matrix Bill:

Attached is the updated matrix for distribution to the NRC.

Regards, Steve Steve Clark Bechtel Power Corp.

Control Systems Watts Bar 2 Completion Project Phone: 865.632.6547 Fax: 865.632.2524 e-mail: msclark0@tva.gov 1

Hearing Identifier: Watts_Bar_2_Operating_LA_Public Email Number: 146 Mail Envelope Properties (19D990B45D535548840D1118C451C74D6FD376F71C)

Subject:

FW: Update NRC RAI Matrix Sent Date: 11/2/2010 5:08:12 PM Received Date: 11/2/2010 5:08:22 PM From: Poole, Justin Created By: Justin.Poole@nrc.gov Recipients:

"WBN2HearingFile Resource" <WBN2HearingFile.Resource@nrc.gov>

Tracking Status: None "Garg, Hukam" <Hukam.Garg@nrc.gov>

Tracking Status: None "Carte, Norbert" <Norbert.Carte@nrc.gov>

Tracking Status: None "Darbali, Samir" <Samir.Darbali@nrc.gov>

Tracking Status: None "Singh, Gursharan" <Gursharan.Singh@nrc.gov>

Tracking Status: None "Marcus, Barry" <Barry.Marcus@nrc.gov>

Tracking Status: None Post Office: HQCLSTR02.nrc.gov Files Size Date & Time MESSAGE 667 11/2/2010 5:08:22 PM 20101028 Open Item List and Count TVA Update 11-2 R1.docx 345273 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received:

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date 001 All All B ( The Watts Bar Nuclear Plant FSAR red-line for Unit 2 12/15/2009 Presentation Slides 1. Y Closed Closed EICB RAI 3/12/2010 NNC 11/19/09: The FSAR (Agency wide Documents Access and Management ML093230343 contains mostly description of 002 All All B ( Are there I&C components and systems that have 12/15/2009 Presentation Slides 2. Y Closed Closed EICB RAI 3/12/2010 NNC 11/19/09: The FSAR changed to a new or different digital technology ML093230343 contains mostly description of 003 All All B ( Because a digital I&C platform can be configured and 12/15/2009 Presentation Slides 3. Y Closed Closed EICB RAI 3/12/2010 NNC 11/19/09: The FSAR programmed for different applications the review ML093230343 contains mostly description of 004 All All B ( Please identify the information that will be submitted Responder: Webb 1/13/10 Public Meeting 4. Y Closed Closed EICB RAI January 13, NNC 11/19/09: LIC-110 Rev. 1 for each unreviewed digital I&C system and ML093230343 2010 Section 6 2 2 states: "Design 005 7.1.3. (

G By letter date February 28, 2008 (Agencywide Responder: Craig/Webb 5. Y Closed Closed EICB RAI TVA Letter 1 Documents Access and Management System ML093431118 dated 2/5/10 006 (

G Amendment 95 of the FSAR, Chapter 7.3, shows that By letter dated February 5, 2010: TVA provided 6. Y Closed Closed EICB RAI TVA Letter NNC: WCAP-12096 Rev. 7 change 7 3-1 consists of updating a reference from the Unit 2 setpoint methodology (WCAP-177044- ML093431118 dated 2/5/10 (ML073460281) is in ADAMS 007 7.1.3. (

G The setpoint methodology has been reviewed and TVA Letter Dated March 12, 2010 (Enclosure 1, 7. Y Closed Closed EICB RAI TVA Letter TVA to provide Rev. 8 of the Unit 1 approved by the NRC staff in Section 7 1 3 1 of Item No 7 on Page 7 of 15): TVA responded to This item is reviewed in ML093431118 dated 3/12/10 1 document (which is the current 008 7.3 (

G There are several staff positions that provide guidance TVA Letter Dated March 12, 2010 (Enclosure 1, 8. Y Closed Closed EICB RAI TVA Letter on setpoint methodology (e g Reg Guide 1 105 BTP Item No 8 on Page 7 of 15): TVA responded to ML093431118 dated 3/12/10 009 7.3.2 5.6, (

D a Change 7.3-2, identified in Watts Bar Nuclear Plant TVA Letter Dated March 12, 2010 (Enclosure 1, 9. Y Closed Closed EICB RAI 3/12/10, 635 FSAR red-line for Unit 2 (ADAMS Accession Number Item No 9 on Page 8 of 15): TVA responded to ML093431118 ML101680598 010 7.3 7.3 (

D a The original SER on Watts Bar (NUREG-0847) TVA Letter Dated March 12, 2010 (Enclosure 1, 10. Closed Closed EICB RAI 3/12/10, documents that the scope of the review of FSAR Item No 10 on Page 8 of 15): TVA responded to ML093431118 ML101680598 011 7.3.2 5.6, (

D a NUREG-0847 Supplement No. 2 Section 7.3.2 TVA Letter Dated March 12, 2010 (Enclosure 1, 11. Closed Closed EICB RAI ML101680598, 635 includes an evaluation of a change in containment Item No 11 on Page 13 of 15): TVA responded ML093431118 Item 9 012 7.4 7.4 (

D a The original SER on Watts Bar (NUREG-0847) TVA Letter Dated March 12, 2010 (Enclosure 1, 12. Closed Closed EICB RAI TVA Letter documents that the scope of the review of FSAR Item No 12 on Page 13 of 15): TVA responded ML093431118 dated 3/12/10 013 7.1.3. (

G Chapter 7 and Chapter 16 of Amendment 95 to the TVA Letter Dated March 12, 2010 (Enclosure 1, 13. Closed Closed EICB RAI TVA Letter TS have been docketed.

1 FSAR do not include any setpoint values Please Item No 13 on Page 14 of 15): TVA responded ML093431118 dated 3/12/10 014 All All B ( Provide the justification for any hardware and software Date: 4/27/10 14. Closed Closed NRC Meeting TVA Letter changes that have been made since the previous U S Responder: TVA Summary dated 4/27/10 015 (

G Verify that the refurbishment of the power range Date: 4/27/10 15. Closed Closed NRC Meeting TVA Letter nuclear instrumentation drawers resulted in only like- Responder: TVA Summary dated 4/27/10 016 B C

a( Identify the precedents in license amendment requests Date: 4/27/10 16. Closed Closed NRC Meeting TVA Letter (LARs) if any for source range monitors or Responder: TVA Summary dated 4/27/10 017 7.3.1 7.3.1, (

D a Identify precedents in LARs, if any, for the solid state Date: 4/27/10 17. Closed Closed NRC Meeting TVA Letter 555 protection system Also identify any hardware Summary dated 4/27/10 018 (

G Identify any changes made to any instrumentation and Date: 4/27/10 18. Closed Closed NRC Meeting TVA Letter control (I&C) system based on prior knowledge of Responder: TVA Summary dated 4/27/10 019 (

G Verify that the containment purge isolation radiation Date: 4/27/10 19. Closed Closed NRC Meeting TVA Letter monitor is the same as used in Watts Bar Unit 1 or Summary dated 4/27/10 020 (

G Provide environmental qualification information Date: 4/27/10 20. Closed Closed NRC Meeting TVA Letter NNC 4/30/10: SRP Section 7.0 pursuant to Section 50 49 of Title 10 of the Code of Responder: TVA Summary dated 4/27/10 states: "The organization 021 7.3 (

G For the Foxboro Spec 200 platform, identify any Date: 5/25/10 21. Closed Closed NRC Meeting TVA Letter The resolution of this item will be changes in hardware from the precedent systems The resolution of this item Summary dated 6/18/10 covered by OI#288 022 7.3.2 5.6, (

D a Verify the auxiliary feedwater control refurbishment Date: 4/27/10 22. Closed Closed NRC Meeting TVA Letter 635 results in a like-for-like replacement and identify any Summary dated 4/27/10 023 (

G Provide environmental qualification (10 CFR 50.49) Date: 4/27/10 23. Closed Closed NRC Meeting TVA Letter NNC 4/30/10: SRP Section 7.0 information for safety-related control transmitters and Responder: TVA Summary dated 4/27/10 states: "The organization 024 (

C Provide a schedule by the January 13, 2010, meeting During the January 13, 2010 meeting, TVA 24. Closed Closed NRC Meeting N/A - Request NNC 4/30/10: Carte to address for providing information in accordance with I&C presented a schedule for completing various Summary for schedule response with respect to PAMS 025 7.5.2 7.5.1 (

Si For the containment radiation high radiation monitor, Date: 4/27/10 25. Closed Closed NRC Meeting ML101230248, verify that the information provided by TVA is Summary Item 12 026 (

G Provide environmental qualification (10 CFR 50.49) Date: 4/27/10 26. Closed Closed NRC Meeting TVA Letter NNC 4/30/10: SRP Section 7.0 information for safety-related monitoring transmitters Responder: TVA Summary dated 4/27/10 states: "The organization 027 7.7.1. (

C For Foxboro I/A provide information regarding Date: 4/27/10 27. Closed Closed NRC Meeting TVA Letter 4 safety/non-safety-related interaction common cause Responder: TVA Summary dated 4/27/10 028 (

G For the turbine control AEH system, verify that the Responder: Mark Scansen 28. Closed Closed NRC Meeting TVA Letter refurbishment results in a like-for-like replacement Date: 4/27/10 Summary dated 10/5/10 029 (

C For the rod control system, verify that the Date: 4/27/10 29. Closed Closed NRC Meeting TVA Letter refurbishment results in a like-for-like replacement Responder: TVA Summary dated 4/27/10

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date 030 (

G Regarding the refurbishment of I&C equipment, Responder: Clark 30. Closed Closed NRC Meeting TVA Letter identify any component digital upgrades and if so Summary dated 10/5/10 031 (

C For the rod position indication system (CERPI), Date: 4/27/10 31. Closed Closed NRC Meeting TVA Letter CERPI is non-safety related.

provide information in accordance with ISG 4 Need to Responder: TVA Summary dated 4/27/10 Note: The issue of interlock with 032 (

C For the process computer, need to consider cyber Date: 4/27/10 32. Closed Closed NRC Meeting TVA Letter EICB will no longer consider security issues and emergency response data system Responder: TVA Summary dated 4/27/10 cyber issues 033 (

C For the loose parts monitoring system, provide Date: 4/27/10 33. Closed Closed NRC Meeting TVA Letter The loose parts monitoring information regarding interactions with safety related Responder: TVA Summary dated 4/27/10 system is not connected to any 034 (

G 2/4/2010 Responder: TVA 34. Closed Closed N/A TVA Letter Awaiting NRC evaluation of dated 4/27/10 034. a r

g Chapter 7.1 - Introduction 35. Close Closed N/A N/A 1 Reactor Coolant System Flow Rate Measurement 034. (

G Chapter 7.2 - Reactor Trip System 36. Close Closed N/A N/A 2 Deletion of Neutron Flux Negative Rate Trip 034. 7.3 7.3 (

D a Chapter 7.3 - ESFAS 37. Closed Closed N/A N/A 3 Design Basis Analysis Parameters 034. 7.5.1. 7.5.2 (

M a Chapter 7.5 - Instrumentation Systems Important to 38. Closed Closed N/A N/A Closed 4 1 Safety 034. 7.5.1. 7.5.2 r c

u Chapter 7.6 - All Other Systems Required for Safety 39. Closed Closed N/A N/A Closed 5 1 767 Plant Process Computer Replacement 034. n g

h Chapter 7.7 Control Systems 40. Closed Closed N/A N/A 6 Alternate Means for Monitoring Control or 035 (

Si 2/18/2010 Responder: Clark 41. Closed Closed RAI No. 1 TVA Letter LIC-110 Section 6.2.2 states:

ML102980005 dated 3/12/10 Design features and 036 7.5.2 7.5.1 (

C February 18, 2010 Date: 5/25/10 42. Closed Closed NRC Meeting NNC: Unit 2 FSAR Section Responder: Clark Summary 7 5 1 Post Accident Monitoring 037 7.5.1. 7.5.2 (

M a 2/18/2010 Responder: Clark Date: 5/25/10 43. Closed Closed N/A TVA Letter FSAR Amendment 100 provides 1 09/16/10 dated 10/5/10 information 038 7.5.1. 7.5.2 (

M a 2/18/2010 Responder: Clark Date: 5/25/10 44. Closed Closed EICB RAI TVA Letter The slides presented at the 1 ML102861885 dated 10/5/10 December 15 2010 meeting 039 (

G January 13, 2010 Responder: Clark Date: 45. Closed Closed EICB RAI FSAR The equation for the calculation 5/25/10 ML102910008 amendment 98 of the estimated average hot leg 040 (

G January 13, 2010 Responder: Clark Date: 46. Closed Closed EICB RAI EICB FSAR The equation for the calculation 5/25/10 RAI amendment 98 of the power fraction on page 042 All All B ( February 25, 2010: Telecom Date: 5/25/10 47. Closed Closed EICB RAI TVA Letter The drawing provided did not Responder: Clark ML102910002 dated 6/18/10 have the identification numbers 044 7.5.2 7.5.1 (

C February 25, 2010 Date: 5/25/10 48. Closed Closed EICB RAI TVA Letter Responder: Clark ML102910002 dated 6/18/10 045 (

C February 25, 2010 Date: 5/25/10 49. Closed Closed EICB RAI TVA Letter Responder: Clark ML102910002 dated 7/30/10 046 (

C February 25, 2010 Date: 5/25/10 50. Closed Closed N/A - Request N/A Responder: Clark for help finding 047 7.5.2 7.5.1 (

C 4/8/2010 Responder: WEC/Hilmes Date: 5/25/10 51. Closed Closed EICB RAI TVA Letter ML102910002 dated 7/30/10 048 7.5.2 7.5.1 (

C April 8, 2010 Date: 5/25/10 52. Closed Closed EICB RAI TVA Letter Responder: WEC ML102910002 dated 6/18/10 049 7.5.2 7.5.1 (

C 4/8/2010 Responder: WEC Date: 5/25/10 53. Closed Closed EICB RAI TVA Letter ML102910002 dated 6/18/10 051 (

G April 15, 2010 Date: 5/25/10 54. Closed Closed N/A N/A Review addressed by another Responder: Craig/Webb Open Item 052 7.5.2 7.5.1 (

Si April 19, 2010 Date: 5/25/10 55. Closed Closed RAI No. 12 Responder: Slifer ML102980005 053 7.5.2 7.5.1 (

Si April 19, 2010 Date: 5/25/10 56. Closed Closed RAI No. 13 Responder: Slifer ML102980005 056 (

Si April 19, 2010 Date: 5/25/10 57. Closed Closed RAI No. 16 TVA Letter Sorrento Radiation Monitoring Responder: Slifer ML102980005 dated 6/18/10 057 7.5.2 7.5.1 (

Si 4/19/2010 Responder: TVA I&C Staff Date: 58. Closed Closed RAI No. 17 TVA Letter 5/25/10 ML102980005 dated 6/18/10

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date 058 7.5.0 7.5 (

Si April 19, 2010 Date: 5/25/10 59. Closed Closed RAI No. 18 TVA Letter Responder: Slifer ML102980005 dated 6/18/10 059 7.5.2 7.5.1 (

Si April 19, 2010 Date: 60. Closed Closed RAI No. 19 TVA Letter Responder: Slifer ML102980005 dated 6/18/10 060 7.5.2 7.5.1 (

C April 19, 2010 Date: 5/25/10 61. Closed Closed N/A N/A Addressed by Open Item No. 47 Responder: Clark 061 7.5.2 7.5.1 (

C April 19, 2010 Date: 5/25/10 62. Closed Closed N/A N/A Addressed by Open Item No. 48 Responder: Clark 062 7.5.2 7.5.1 (

C April 19, 2010 Date: 5/25/10 63. Closed Closed N/A N/A Addressed by Open Item No. 49 Responder: Clark 063 7.5.2 7.5.1 (

C April 19, 2010 Date: 5/25/10 64. Closed Closed N/A N/A Addressed by Open Item No. 50 Responder: Clark 064 7.5.2 7.5.1 (

C By letter dated March 12, 2010 TVA stated that the Responder: Webb Date: 4/8/2010 65. Closed Closed N/A - No TVA Letter target submittal date for the D3 Analysis was April 2 question was dated 10/5/10 066 7.5.2 7.5.1 (

C By letter dated March 12, 2010 TVA stated that the Responder: WEC Date: 5/25/10 66. Closed Closed N/A - No TVA Letter target submittal date for the "Watts Bar 2 PAMS question was dated 6/18/10 076 7.5.2 7.5.1 (

C By letter dated March 12, 2010 TVA stated that the Responder: Clark Date: 5/25/10 67. Closed Closed N/A - No N/A target submittal date for the "Watts Bar 2 PAMS question was 077 7.5.2 7.5.1 (

C By letter dated March 12, 2010 TVA stated that the Responder: WEC Date: 5/25/10 68. Closed Closed N/A - No TVA Letter target submittal date for seven other documents was question was dated 6/18/10 078 (

G 4/26/2010 Responder: Clark Date: 5/25/10 69. Closed Closed EICB RAI TVA Letter ML102910008 dated 10/5/10 079 (

G 4/26/2010 Responder: Clark Date: 5/25/10 70. Closed Closed EICB RAI TVA Letter Reviewed under Item 154 ML102910008 dated 10/5/10 080 (

Si 4/26/2010 Responder: WEC 71. Closed Closed RAI No. 2 TVA Letter ML102980005 dated 7/30/10 083 7.5.2 7.5.1 (

C May 6, 2010 Date: 6/18/10 72. Closed Closed EICB RAI TVA Letter Responder: WEC ML102910002 dated 7/30/10 084 7.5.2 7.5.1 B C

a( May 6, 2010 Date: 6/18/10 73. Closed Closed EICB RAI TVA Letter Responder: Clark ML102910002 dated 6/18/10 087 7.5.2 7.5.1 (

Si May 6, 2010 Date: 5/24/10 74. Closed Closed RAI No. 20 TVA Letter Responder: Slifer ML102980005 dated 6/18/10 088 7.5.2 7.5.1 B S

in( May 6, 2010 Date: 5/24/10 75. Closed Closed RAI No. 21 TVA Letter Responder: Slifer ML102980005 dated 6/18/10 089 (

C 5/6/2010 Responder: Clark 76. Closed Closed EICB RAI TVA Letter NNC: Docketed response states ML102910002 dated 3/12/10 that the applicable FSAR 090 (

C 5/6/2010 Responder: Clark Date: 5/25/10 77. Closed Closed EICB RAI TVA Letter ML102910002 dated 3/12/10 091 7.4 7.4 (

D a May 20, 2010 Date: 5/25/10 78. Closed Closed EICB RAI No.1 TVA Letter Responder: Clark ML102910017 dated 6/18/10 093 (

G May 20, 2010 Date: 5/25/10 79. Closed Closed N/A N/A Will be reviewed under item 154 Responder: Knuettel 094 (

G 5/20/2010 Responder: Clark Date: 5/25/10 80. Closed Closed N/A N/A Information was found in FSAR 095 7.8.1, XX (

D a May 20, 2010 Date: 81. Closed Closed EICB RAI No. 2 TVA Letter 784 Responder: ML102910017 dated 7/30/10 096 7.7.5 XX (

D a 5/20/2010 Responder: 82. Closed Closed EICB RAI No.3 TVA Letter ML102910017 dated 7/30/10 097 7.4.2 7.4 (

D a May 20, 2010 Date: 83. Closed Closed EICB RAI No.4 TVA Letter Responder: ML102910017 dated 7/30/10 098 7.4.2 7.4 (

D a May 25, 2010 Date: 84. Closed Closed EICB RAI No.5 TVA Letter Responder: ML102910017 dated 7/30/10 099 L B( April 12, 2010 Date: 85. Closed Closed Closed to Item 129 Responder: WEC 100 (

C 5/20/2010 Responder: WEC 86. Closed Closed N/A - No N/A question was 102 (

C May 24, 2010 Date: 5/24/10 87. Closed Closed N/A TVA Letter Request for schedule not Responder: WEC dated 6/18/10 information 105 (

G April 29, 2010 Date: 88. Closed Closed N/A N/A Will be reviewed under item 154.

Responder: Langley

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date 106 B S

in( May 6, 2010 Date: 5/25/10 89. Closed Closed RAI No. 9 TVA Letter Responder: Davies ML102980005 dated 6/18/10 107 B S

in( May 6, 2010 Date: 5/28/10 90. Closed Closed RAI No. 22 TVA Letter Responder: Clark ML102980005 dated 6/18/10 108 (

G May 6, 2010 Date: 5/25/10 91. Closed Closed N/A N/A Will be reviewed under OI#154 Responder: Webb/Hilmes 109. (

C 5/6/2010 Responder: N/A 92. Closed Closed N/A N/A Duplicate of another open Item.

b 109. 7.8 XX (

D a 5/6/2010 Responder: N/A 93. Closed Closed N/A N/A a

110 (

G May 6, 2010 Date: 94. Closed Closed N/A N/A Information was found.

Responder: Clark 111 B C

a( May 6, 2010 Date: 5/28/10 95. Closed Closed N/A TVA Letter Request to help find, not a Responder: Clark dated 6/18/10 request for information 112 B G

a( June 1, 2010 Date: 96. Closed Closed N/A N/A Information was received Responder: Clark 113 (

G 6/1/2010 Responder: Clark 97. Closed Closed EICB RAI TVA Letter ML102910008 dated 6/18/10 115 (

C 2/25/2010 Responder: Clark 98. Closed Closed EICB RAI TVA Letter ML102910002 dated 6/18/10 116 (

G 6/3/2010 Responder: WEC 99. Closed Closed EICB RAI TVA Letter Letter sent to Westinghouse ML102910008 dated 10/5/10 requesting the basis information 119 (

Si June 10, 2010 Date: 100. Closed Closed RAI No. 23 TVA Letter Responder: ML102980005 dated 7/30/10 120 (

C 5/6/2010 Responder: Hilmes/Merten/Costley 101. Closed Closed EICB RAI TVA Letter ML102910002 dated 7/30/10 121 (

C 5/6/2010 Responder: Webb/Webber 102. Closed Closed EICB RAI TVA Letter ML102980066 dated 7/30/10 122 (

C June 14, 2010 Date: 103. Closed Closed N/A - Request N/A Responder: WEC for schedule not 123 7.7.3 7.4.1, (

D a 6/14/2010 Responder: 104. Closed Closed ML101720589, TVA Letter 934 RAIs 21 and 22 dated 7/30/10 124 7.7.5 XX (

D a 6/14/2010 Responder: 105. Closed Closed ML101720589, TVA Letter Item No 23 dated 7/30/10 125 7.7.8 7.7.1. (

D a 6/14/2010 Responder: 106. Closed Closed ML101720589, TVA Letter 12 Item No s 24 dated 7/30/10 126 7.8 7.8 (

D a June 14, 2010 Date: 107. Closed Closed ML101720589, TVA Letter Responder: Item No 26 dated 7/30/10 127 7.2 7.2 (

G 6/16/2010 Responder: WEC/Clark 108. Closed Closed EICB RAI TVA Letter ML102910008 dated 6/18/10 128 7.2 7.2 (

G 6/18/2010 Responder: WEC Drake /TVA Craig 109. Closed Closed EICB RAI Track through SE open item ML102910008 129 (

P o 6/12/2010 Responder: WEC 110. Closed Closed N/A TVA Letter dated 10/5/10 130 (

P o 6/28/2010 Responder: Clark 111. Closed Closed N/A TVA Letter dated 10/5/10 131 (

P o 6/28/2010 Responder: Clark 112. Closed Closed N/A TVA Letter dated 10/5/10 132 (

P o 6/28/2010 Responder: Clark 113. Closed Closed N/A TVA Letter dated 10/5/10 133 (

P o 6/28/2010 Responder: Clark 114. Closed Closed TVA Letter dated 10/5/10 134 (

P o 6/28/2010 Responder: Clark 115. Closed Closed TVA Letter dated 10/5/10 135 7.3.1 7.3.1 (

D a 6/30/2010 Responder: Clark 116. Closed Closed RAI not TVA Letter necessary dated 10/5/10 136 7.3.2, 7.4, (

D a 6/30/2010 Responder: Clark 117. Closed Closed RAI not TVA Letter 74 56 necessary dated 10/5/10

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date 137 (

C Several WBN2 PAMS documents contain a table titled, Responder: WEC 118. Closed Closed ML101650255, TVA Letter Document Traceability & Compliance Item No 1 dated 10/5/10 139 (

C The WBN2 PAMS System Requirements Specification Responder: WEC 119. Closed Closed ML101650255, TVA Letter WBN2 PAMS System (WBN2 PAMS SysRS) contains a table (see page iii) Item No 3 dated 10/5/10 Requirements Specification 141 (

C Deleted by DORL Date: 120. Closed Closed ML101650255, WBN2 PAMS System Responder: Item No 5 Requirements Specification 146 (

C 6/17/2010 Responder: 121. Closed Closed ML101650255, PAMS System Requirements Item No 10 Specifications 147 (

C 6/17/2010 Responder: 122. Closed Closed ML101650255, PAMS System Requirements Item No 11 Specifications 148 (

C 6/17/2010 Responder: 123. Closed Closed ML101650255, PAMS System Requirements Item No 12 Specifications 149 7.2 7.2 (

G FSAR Section 7.1.1.2(2), Overtemperature delta T and Responder: Tindell 124. Close Closed ML101720589, TVA Letter Overpressure delta T equations have been simplified Item No 1 dated 10/5/10 150 7.2 7.2 (

G Many of the changes were based on the Responder: Clark 125. Close Closed ML101720589, TVA Letter Westinghouse document N3-99-4003 Provide this Response provided in letter Item No 2 dated 10/5/10 151 7.2 7.2 (

G Provide the EDCR 52378 and 54504 which discusses Responder: Clark 126. Close Closed ML101720589, TVA Letter the basis for many changes to this FSAR section Item No 3 dated 10/5/10 152 7.2 7.2 (

G Deleted portion of FSAR section 7.2.3.3.4 and moved Responder: Merten/Clark 127. Close Closed ML101720589, TVA Letter to FSAR section 7 2 1 1 5 However the FSAR Item No 4 dated 10/5/10 153 7.2 7.2 (

G FSAR section 7.2.1.1.7 added the reference to FSAR Responder: Craig/Webb 128. Close Closed ML101720589, TVA Letter section 10 4 4 3 for exception to P-12 However Item No 5 dated 10/21/10 155 7.2 7.2 (

G Summary of FSAR change document section 7.2 Date: 129. Closed Closed ML101720589, states that sections 7 2 1 1 9 and 7 2 2 2(4) are Responder: Stockton Item No 7 157 7.2 7.2 (

G FSAR section 7.2.2.1.1, fifth paragraph was deleted Responder: Tindell 130. Close Closed ML101720589, TVA Letter except for the last sentence The last sentence states Item No 9 dated 10/5/10 158 7.2 7.2 (

G FSAR section 7.2.2.1.1, paragraph six was changed to Responder: Tindell 131. Closed Closed ML101720589, TVA Letter state that the design meets the requirements of Item No 10 dated 10/5/10 159 7.2 7.2 (

G FSAR section 7.2.2.1.2 discusses reactor coolant flow Responder: Craig 132. Close closed ML101720589, TVA Letter measurement by elbow taps However it further Item No 11 dated 10/5/10 160 7.2 7.2 (

G FSAR section 7.2.2.2(7) deleted text which has Responder: Tindell 133. Close Closed ML101720589, TVA Letter references 12 and 14 These references are not Item No 12 dated 10/5/10 161 7.2 7.2 (

G FSAR section 7.2.2.3 states that changes to the Responder: Clark 134. Closed Closed ML101720589, TVA Letter control function description in this section are expected Item No 13 dated 10/5/10 162 7.2 7.2 (

G FSAR section 7.2.2.2(14) states that bypass of a Responder: Tindell 135. Closed Closed ML101720589, TVA Letter protection channel during testing is indicated by an Item No 14 dated 10/5/10 163 7.2 7.2 (

G Deleted by DORL Date: 136. Closed Closed ML101720589, Responder: Item No 15 164 7.2 7.2 a r

gl FSAR section 7.2.2.2(20) has been revised to include Responder: Perkins 137. Closed Closed ML101720589, TVA Letter Item No. 8 sent to DORL 751 the plant computer as a means to provide information Item No 16 and dated 10/5/10 165 7.2 7.2 (

G FSAR section 7.2.2.3.2, last paragraph of this section Responder: Clark 138. Closed Closed ML101720589, TVA Letter has been deleted The basis for this deletion is that Item No 17 dated 10/5/10 166 7.2 7.2 (

G Changes to FSAR section 7.2.2.2(20) are justified Responder: Clark 139. Closed Closed ML101720589, TVA Letter based on the statement that the integrated computer Item No 18 dated 10/5/10 167 7.2 7.2 (

G FSAR section 7.2.2.4, provide an analysis or reference Responder: Clark 140. Close closed ML101720589, TVA Letter to chapter 15 analysis which demonstrate that failure Item No 19 dated 10/5/10 168 7.2 7.2 (

G FSAR table 7.2-4, item 9 deleted loss of offsite power Responder: Clark 141. Close Closed ML101720589, TVA Letter to station auxiliaries (station blackout) based on the Response provided in letter Item No 20 dated 10/5/10 169 (

G 6/18/2010 Responder: Clark 142. Closed Closed 170 (

G 6/17/2010 Responder: Clark 143. Closed Closed 171 7.2 7.2 (

G 6/17/2010 Responder: Craig 144. Closed Closed EICB RAI TVA Letter Closed to SE Open Item ML102910008 dated 10/21/10 172 (

G 6/17/2010 Responder: Craig 145. Closed Closed EICB RAI ML102910008 173 7.1 7.1 (

G 6/17/2010 Responder: Craig/Webb/Powers 146. Closed Closed EICB RAI ML102910008

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date 174 (

G 6/28/2010 Responder: Hilmes/Craig 147. Closed Closed EICB RAI ML102910008 175 (

G June 28, 2010 Responder: 148. Closed Closed EICB RAI ML102910008 176 7.1 7.1 (

G 6/28/2010 Responder: Craig/Webb 149. Closed Closed EICB RAI ML102910008 177 7.5.2. 7.5.1 (

M a 7/15/2010 Responder: Clark 150. Closed Closed N/A TVA Letter RAI not required 1 dated 10/5/10 178 7.5.2. 7.5.1 (

M a 7/15/2010 Responder: Clark 151. Closed Closed N/A TVA Letter RAI not required 1 dated 10/5/10 179 (

C An emphasis is placed on traceability in System Responder: WEC 152. Closed Closed N/A - Closed to NA Requirements Specifications in the SRP in the Item No 142 180 (

C The SRP, BTP 7-14, Section B.3.3.1 states that Responder: WEC 153. Closed Closed N/A - Closed to NA Regulatory Guide 1 172 endorses with a few noted Item No 142 181 (

C An emphasis is placed on traceability in System Responder: WEC 154. Closed Closed N/A - Closed to NA Requirements Specifications in the SRP in the Item No 142 182 (

C Characteristics that the SRP states that a Software Responder: WEC 155. Closed Closed N/A - Closed to NA Requirements Specifications should have include Item No 142 184 (

C 7/15/2010 Responder: WEC 156. Closed Closed N/A - Closed to N/A Item No 142 188 (

C By letter dated June 30, 2010, TVA docketed, Responder: Clark 157. Closed Closed ML101970033, TVA Letter Tennessee Valley Authority (TVA) Watts Bar Unit 2 Item No 3 & 4 dated 10/5/10 189 7.6.7 (

Si 7/20/2010 Responder: Clark 158. Closed Closed RAI No. 3 TVA Letter ML102980005 dated 10/5/10 190 7.9 (

Si FSAR Table 7.1-1 states: Regulatory Guide 1.133, Responder: Clark 159. Closed Closed RAI No. 4 TVA Letter Closed to OI-331.

May 1981 Loose-Part Detection Program for the ML102980005 dated 10/5/10 191 7.9 (

C NUREG-0800 Chapter 7, Section 7.9, "Data Responder: Jimmie Perkins 160. Closed Closed ML10197016, TVA Letter Communication Systems" contains review criteria for Item Nos 1-3 dated 10/5/10 192 7.5.1. 7.5.2 (

M a The NRC Staff is using SRP (NUREG-0800) Chapter 7 Responder: Clark 161. Closed Closed Item No. 1 sent TVA Letter EICB RAI ML1028618855 sent 1 Section 7 5 Instrumentation Systems Important to to DORL dated 10/5/10 to DORL 193 7.5.1. 7.5.2 (

M a The WBU2 FSAR, Section 7.5.2, Plant Computer Responder: Clark 162. Closed Closed Item No. 2 sent TVA Letter EICB RAI ML1028618855 sent 1 System contains three subsections to DORL dated 10/5/10 to DORL 194 7.5.1. 7.5.2. (

M a The WBU2 FSAR Section 7.5.2.1, Safety Parameter Responder: Costley/Norman 163. Closed Closed Item No. 3 sent TVA Letter EICB RAI ML1028618855 sent 11 1 Display System contains a description of the Safety to DORL dated 10/5/10 to DORL 195 7.5.1. 7.5.2. (

M a Bypassed and Inoperable Status Indication (BISI) Responder: Costley/Norman 164. Closed Closed Item No. 4 sent TVA Letter EICB RAI ML1028618855 sent 12 2 to DORL dated 10/5/10 to DORL 196 7.5.1. 7.5.2. (

M a Bypassed and Inoperable Status Indication (BISI) Responder: Costley/Norman 165. Closed Closed Item No. 5 sent TVA Letter EICB RAI ML1028618855 sent 12 2 to DORL dated 10/5/10 to DORL 197 X Open Item 197 was never issued. 166. Closed Closed 198 7.5.1. 7.5.2. (

M a SRP Section 7.5, Subsection III, Review Procedures Responder: Costley/Norman 167. Closed Closed Item No. 6 sent TVA Letter EICB RAI ML1028618855 sent 12 2 states: Recommended review emphasis for BISI to DORL dated 10/5/10 to DORL 199 7.5.1. 7.5.2. (

M a The WBU2 FSAR Section 7.5.2.3, Technical Support Responder: Costley/Norman 168. Closed Closed Item No. 7 sent TVA Letter Related SE Section 7.5.5.3 EICB 13 3 Center and Nuclear Data Links contains a description to DORL dated 10/5/10 RAI ML1028618855 sent to 203 7.5.1. 7.5.2 (

M a 7/26/2010 Responder: Clark 169. Closed Closed EICB RAI TVA Letter EICB RAI ML102861885 sent to 1 ML102861885 dated 10/5/10 DORL 204 7.5.1. 7.5.2 (

M a 7/26/2010 Responder: Costley/Norman 170. Closed Closed EICB RAI TVA Letter EICB RAI ML102861885 sent to 1 NRC to issue ML102861885 dated 10/5/10 DORL 205 (

G 7/26/2010 Responder: Clark 171. Closed Closed EICB RAI TVA Letter Question B related to prior NRC ML102910008 dated 10/5/10 approval of this system or 50 59 206 7.5.1. 7.5.2 (

M a 7/27/2010 Responder: Clark 172. Closed Closed EICB RAI TVA Letter EICB RAI ML102861885 sent to 1 ML102861885 dated 10/5/10 DORL 207 (

C July 27, 2010 Date: 173. Closed Closed Responder:

208 7.5.2. 7.5.1 (

M a 7/27/2010 Responder: Clark 174. Closed Closed EICB RAI TVA Letter EICB RAI ML102861885 sent to 1 ML102861885 dated 10/5/10 DORL 209 7.5.2. 7.5.1 (

M a 7/27/2010 Responder: Clark 175. Closed Closed EICB RAI TVA Letter EICB RAI ML102861885 sent to 1 ML102861885 dated 10/5/10 DORL

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date 210 7.5.2. 7.5.1 (

M a 7/27/2010 Responder: Clark 176. Closed Closed EICB RAI TVA Letter EICB RAI ML102861885 sent to 1 ML102861885 dated 10/5/10 DORL 215 (

P o 7/29/2010 Responder: WEC 177. Closed Closed 216 7.5.1. 7.5.2 (

M a 7/29/2010 Responder: Clark 178. Closed Closed EICB RAI TVA Letter EICB RAI ML102861885 sent to 1 ML102861885 dated 10/5/10 DORL 217 (

G 7/6/2010 Responder: Clark 179. Close Closed EICB RAI TVA Letter ML102910008 dated 7/30/10 218 (

G 7/6/2010 Responder: Clark 180. Closed Closed EICB RAI TVA Letter ML102910008 dated 7/30/10 219 (

G 8/4/2010 Responder: TVA Licensing 181. Closed Closed EICB RAI ML102910008 220 (

G 8/4/2010 Responder: Ayala 182. Closed Closed EICB RAI TVA Letter ML102910008 dated 10/5/10 221 7.7.1. 7.7.1. (

M a 8/4/2010 Responder: Trelease 183. Closed Closed EICB RAI TVA Letter EICB RAI ML102861885 sent to 2 3 ML102861885 dated 10/5/10 DORL 222 (

G 8/4/2010 Responder: Clark 184. Close Closed EICB RAI TVA Letter ML102910008 dated 10/5/10 223 (

G 8/4/2010 Responder: Clark 185. Closed Closed EICB RAI ML102910008 224 7.5.1. 7.5.2 (

M a 8/4/2010 Responder: Norman (TVA CEG) 186. Closed Closed EICB RAI TVA Letter EICB RAI ML102861885 sent to 1 ML102861885 dated 10/5/10 DORL 225 (

G 8/4/2010 Responder: Scansen 187. Close Closed EICB RAI TVA Letter ML102910008 dated 10/5/10 226 (

C 8/4/2010 Responder: TVA Licensing 188. Closed Closed N/A - TVA Letter See also Open Item Nos. 41 &

Information dated 8/11/10 270 227 (

G 8/4/2010 Responder: Clark 189. Close Closed EICB RAI TVA Letter ML102910008 dated 10/5/10 228 (

C 8/4/2010 Responder: Clark 190. Closed Closed EICB RAI TVA Letter ML102980066 dated 10/5/10 229 (

C 8/4/2010 Responder: Clark 191. Closed Closed EICB RAI TVA Letter ML102980066 dated 10/5/10 230 (

C 8/4/2010 Responder: Webb 192. Closed Closed EICB RAI TVA Letter ML102980066 dated 10/5/10 231 (

G 8/4/2010 Responder: Clark 193. Closed Closed EICB RAI TVA Letter ML102910008 dated 10/5/10 232 (

Si 8/4/2010 Responder: Clark 194. Closed Closed RAI No. 5 TVA Letter ML102980005 dated 10/5/10 233 (

C 8/4/2010 Responder: Clark 195. Closed Closed EICB RAI TVA Letter ML102980066 dated 10/5/10 234 (

C 8/4/2010 Responder: 196. Closed Closed N/A - Duplicate N/A Item 235 (

G 8/4/2010 Responder: TVA Licensing 197. Closed Closed EICB RAI ML102910008 236 (

G 8/4/2010 Responder: Clark 198. Close Closed EICB RAI TVA Letter ML102910008 dated 10/5/10 237 (

C 8/4/2010 Responder: Clark 199. Closed Closed EICB RAI TVA Letter ML102980066 dated 10/5/10 238 (

C 8/4/2010 Responder: Webb/Hilmes 200. Closed Closed N/A - Duplicate N/A Item 239 (

C 8/4/2010 Responder: Hilmes 201. Closed Closed N/A - Meeting N/A request 240 (

G 8/4/2010 Responder: Clark 202. Close Closed Ml102910008 TVA Letter Item#29 dated 10/5/10 241 (

Si 8/4/2010 Responder: Davies 203. Closed Closed RAI No. 10 TVA Letter ML102980005 dated 10/5/10 242 (

G 8/4/2010 Responder: Hilmes 204. Close Closed EICB RAI TVA Letter ML102910008 dated 10/5/10

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date 243 (

C 8/3/2010 Responder: WEC 205. Closed Closed N/A - Closed to N/A Item No 142 249 (

C 8/8/2010 Responder: WEC 206. Closed Closed LIC-101 Rev. 3 Appendix B Section 4 "Safety Evaluation" 253 (

C 8/8/2010 Responder: Clark 207. Closed Closed TVA Letter Related to Open Item no. 83.

dated 10/5/10 254 (

C 8/10/2010 Responder: WEC 208. Closed Closed N/A - Request TVA Letter to make dated 10/21/10 255 (

C 8/10/2010 Responder: WEC 209. Closed Closed N/A - Request TVA Letter to make dated 10/21/10 256 (

C 8/10/2010 Responder: WEC 210. Closed Closed N/A - Request TVA Letter to make dated 10/21/10 257 (

C 8/10/2010 Responder: WEC 211. Closed Closed N/A - Request N/A to make 258 (

C 8/10/2010 Responder: WEC 212. Closed Closed N/A - Request N/A to make 259 (

C 8/10/2010 Responder: WEC 213. Closed Closed N/A - Request TVA Letter to make dated 10/21/10 260 (

C 8/10/2010 Responder: WEC 214. Closed Closed N/A - Request N/A to make 261 (

C 8/10/2010 Responder: WEC 215. Closed Closed N/A - Closed to TVA Letter LIC-110 Rev. 1 Section 6.2.2 Item No 142 dated 8/20/10 states: "Design features and 262 (

C 8/10/2010 Responder: WEC 216. Closed Closed N/A - Request N/A to make 263 (

C 8/11/2010 Responder: WEC 217. Closed Closed ML101650255, Based on an examination of document available at the Item No 2 264 (

C 8/11/2010 Responder: WEC 218. Closed Closed ML101650255, Item No 2 265 (

C 8/11/2010 Responder: WEC 219. Closed Closed ML101650255, Item No 2 270 (

C 8/23/2010 Responder: Clark 220. Closed Closed See also Open Item Nod. 41 &

245 271 (

C 8/23/2010 Responder: WEC 221. Closed Closed N/A - Closed to NA Item No 142 272 7.5.2. 7.5.1 (

M a 8/26/2010 Responder: Clark 222. Closed Closed EICB RAI TVA Letter EICB RAI ML102861885 sent to 1 ML102861885 dated 10/21/10 DORL 273 7.5.2. 7.5.1 (

M a 8/26/2010 Responder: Clark 223. Closed Closed EICB RAI TVA Letter EICB RAI ML102861885 sent to 1 ML102861885 dated 10/5/10 DORL 274. 7.5.2. 7.5.1 (

M a 8/26/2010 Responder: Clark 224. Closed Closed EICB RAI TVA Letter EICB RAI ML102861885 sent to a 1 ML102861885 dated 10/21/10 DORL 275 (

Si 8/27/2010 Responder: Clark 225. Closed Closed Not Required N/A Answer exists in 276 7.6 7.6 (

G 8/27/2010 Responder: Webb 226. Close Closed EICB RAI TVA Letter ML102910008 dated 10/21/10 278 7.6 7.6.6 (

G 8/27/2010 Responder: Trelease 227. Close Closed EICB RAI TVA Letter ML102910008 dated 10/21/10 279 7.6 7.6.6 (

G 8/27/2010 Responder: Mather 228. Close Closed EICB RAI TVA Letter ML102910008 dated 10/21/10 280 7.6 7.6.6 (

G 8/27/2010 Responder: Trelease 229. Close Closed EICB RAI TVA Letter ML102910008 dated 10/21/10 282 7.6 7.6.9 (

G 8/27/2010 Responder: Trelease 230. Close Closed EICB RAI TVA Letter Response is acceptable ML102910008 dated 10/21/10 284 7.7.3 7.4.1 (

D a 8/27/2010 Responder: Webber 231. Closed Closed EICB RAI No.14 TVA Letter This item is a follow-up question ML102910017 dated 10/21/10 to item 123 286 7.7.3 9.3.4. (

D a 8/27/2010 Responder: Webber 232. Closed Closed EICB RAI No.16 TVA Letter 24 ML102910017 dated 10/21/10 290 7.7 (

C 9/7/2010 Responder: Clark 233. Closed Closed N/A N/A This item is a duplicate of item 291

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date 292 7.2.5 7.2 (

G 9/7/2010 Responder: Craig 234. Closed Closed EICB RAI TVA Letter ML102910008 dated 10/21/10 299 (

C Provide Common Q Software Requirements Attachment 41 of the 10/5 letter contains the 235. Closed Closed TVA Letter Specification Post Accident Monitoring System 00000- Common Q Software Requirements Specification dated 10/5/10 312 7.0 (

G By letter dated September 10,2010, TVA provided the Responder: Stockton 236. Close Closed EICB RAI TVA Letter summary evaluation of 50 59 reports which were ML102910008 dated 10/21/10 314 7.3 7.3 (

D a The following 50.59 changes were listed in the March Responder: Stockton 237. Closed Closed EICB RAI No. TVA Letter Related to OI 10 12 RAI response letter (item 10) but were not included 19 dated 10/21/10 315 7.5.3 7.5.3 (

G IE Bulletin 79-27 required that emergency operating Responder: S. Smith (TVA Operations) 238. Close Closed EICB RAI TVA Letter procedures to be used by control room operators to ML102910008 dated 10/21/10 316 7.5.2. 7.5 (

S i TVA has provided various documents in support of Responder: Temples/Mather 239. Closed Closed RAI No. 26 3 RM-1000 high range monitors for WBN2 ML102980005 320 Per Westinghouse letter WBT-D-2340, TENNESSEE Responder: Clark 240. Closed Closed N/A N/A Duplicate of item 156 VALLEY AUTHORITY WATTS BAR NUCLEAR 321 For the purposes of measuring reactor coolant flow for Responder: Clark 241. Closed Closed N/A N/A Duplicate of OI# 157 Reactor Protection functions elbow taps are used for 322 7.7.1. (

C Section 7.7.1.11 will be added to FSAR Amendment Responder: Clark 242. Closed Closed 11 101 to provide a discussion of the Distributed Control 324 (

M a Per the NRC reviewer, the BISI calculation is not 243. Closed Closed required to be submitted 325 B

(

G a The Unit 2 loops in service for Unit 1 that are Responder: TVA Startup Olson 244. Closed Closed Closed to open item ?

scheduled to be transferred to the Foxboro Spec 200 332 7.5.2. 7.5.1 10/26/2010 245. N Closed Closed TBD TBD RAI is being drafted EICB (Marcus) 1 Related to 302 TVA to either officially This item was transmit DCN 52389 or corrected prior to In response to Open Item 302 TVA provided a diskette identify the letter that transmittal of the that included a draft of Attachment 8 to the proposed transmitted or will transmit response to OI 10/29/2010 letter. Attachment 8 included 14 of the 15, DCN 52389. 302 in the 10/29 50.59 documents listed in the, RG 1.97 50.59 Listing. TVA letter.

DCN 52389 was not included on the diskette. Identify the document and date that officially transmitted or will transmit, DCN 52389 to the NRC. If DCN 52389 has not been previously transmitted to NRC please transmit the document to the NRC.

333 7.5.2. 7.5.1 10/27/2010 246. N Closed Closed TBD TBD RAI is being drafted EICB (Marcus) 1 Related to 44 and 303 TVA to determine the This item was correct information and corrected prior to In response to Open Item 303, TVA provided a officially transmit the correct transmittal of the diskette that included a draft of Attachment 9 to the information. response to OI proposed October 29, 2010 letter. In Attachment 9, 302 in the 10/29 the Unit 2 variable source for RG 1.97 variable 37, TVA letter.

CCS Sample Tank Level, was listed as Foxboro Spec 200. However, in response to Open Item 44, in Enclosure 1 to TVA letter dated June 18, 2010 (ML101940236), the Unit 2 variable source for RG 1.97 variable 37 was listed as Foxboro I/A. Determine which is correct and formally issue a correction.

269 DOR 8/20/2010 Responder: NRC 1. Y Open Open-NRC L

(Poo le)

DORL to send the Eagle-21 Audit Report to TVA.

043 7.5.2 7.5.1 2/19/2010 Responder: WEC Date: 5/25/10 2. N Open Open-NRC EICB RAI TVA Letter NNC 8/25/10: A CQ PAMS ISG6 EICB (Carte)

Review ML102910002 dated 2/5/10 compliance matrix was docketed The PAMS ISG6 compliance matrix supplied as The PAMS ISG6 compliance matrix supplied as Response is included in Item No. 2 on: (1) February, 5 12010, (2)

Enclosure 1 to TVA letter dated February 5, 2010 is a Enclosure 1 to TVA letter dated February 5, 2010 letter dated 10/5/10. Due 12/1/10 TVA Letter March 12, 2010, & (3) June 18, first draft of the information needed. The shortcomings is a first draft of the information needed. dated 5/12/10 2010. The staff has expressed of the first three lines in the matrix are: Revised compliance matrix issued with all of these

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date By letter dated April 8, 2010 TVA provided the is unacceptable. TVA Letter compliance evaluations. The Line 1: Section 11 of the Common Q topical report did PAMS Licensing Technical Report provided dated 6/18/10 staff is still waiting for a good include a commercial grade dedication program, but additional information. NNC 8/12/10: It is not quite compliance evaluation.

this program was not approved in the associated SE. enough to provide all of the TVA Letter Westinghouse stated that this was the program and it Attachment 3 contains the revised Common Q documents requested. dated 10/5/10 could now be reviewed. The NRC stated that TVA PAMS ISG-6 Compliance Matrix, dated June 11, There are two possible routs should identified what they believe was previously 2010, that addresses these items (Reference 13). to review that the NRC can reviewed and approved. undertake: (1) follow ISG6, By letter Dated June 18, 2010 (see Attachment 3) and (2) follow the CQ SPM.

Line 2: TVA stated the D3 analysis was not applicable TVA provided a table, "Watts Bar 2 - Common Q The TVA response that was to PAMS, but provided no justification. The NRC PAMS ISG-6 Compliance Matrix." originally pursued was to asked for justification since SRP Chapter 7.5 identified follow ISG6, but some of the SRM to SECV-93-087 Item II.Q as being SRP It is TVAs understanding that this comment is compliance items for ISG6 acceptance criteria for PAMS. focused on the fact that there are documents that were addressed by NRC has requested that are currently listed as referencing the SPM. The Line 3: TVA identified that the Design report for being available for audit at the Westinghouse NRC approved the CQ TR computer integrity was completed as part of the offices. For those Common Q PAMS documents and associated SPM; it may common Q topical report. The NRC noted that this that are TVA deliverable documents from be more appropriate to report is applicable for a system in a plant, and the CQ Westinghouse, TVA has agreed to provide those review the WBN2 PAMS topical report did no specifically address this PAMS to NRC. Westinghouse documents that are not application to for adherence system at Watts Bar Unit 2. deliverable to TVA will be available for audit as to the SPM that to ISG6. In stated above. Requirements Traceability Matrix either path chosen, the NRC then concluded that TVA should go through and issues will be tracked under NRC RAI Matrix applicant should provide provide a more complete and thorough compliance Items 142 (Software Requirements Specification) documents and a matrix. and 145 (System Design Specification). justification for the Commercial Item Dedication issues will be acceptability of any tracked under NRC RAI Matrix Item 138. This deviation from the path item is considered closed. chosen. For example, it appears that the Westinghouse's CDIs are commercial grade dedication plans, but Westinghouse maintains that they are commercial grade dedication reports; this apparent deviation should be justified or explained.

050 7.5.2 7.5.1 4/8/2010 Responder: WEC Date: 5/25/10 3. N Open Open-NRC EICB RAI TVA Letter EICB (Carte)

Review ML102910002 dated 6/18/10 How should the "shall" statements outside of the These sections are descriptive text and not TVA response is Item No. 8 bracketed requirements in Common Q requirements requirements. The next revision of the Watts Bar inconsistent (e.g., WNA-DS- Due 12/31/10 documents be interpreted? Unit 2 PAMS System Requirements Specification 01667-WBT Rev. 1 page 1-will remove shall from the wording in those 1, Section 1.3.1 implies that sections. A date for completing the next revision "SysRS Section ###" has of the System Requirements Specification will be requirements. See also provided no later than August 31, 2010. SDS4.4.2.1-1 on page 4-32).

The System Requirements Specification will be revised by September 30, 2010 and submitted Is there a requirement on within two of receipt from Westinghouse. the shall referenced above??

TVA Revised Response Response is provided in This item is resolved by submittal of the revised letter dated 10/29/10.

SysRS and SysDS (attachments 7 and 8 of TVA Letter to NRC dated 10/25/10).

(

054 7.5.2 7.5.1 4/19/2010 Responder: Slifer/Clark Date: 5/25/10 4. Y Open Open-NRC RAI No. 14 TVA Letter S

i

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date Review ML102980005 dated 6/18/10 Please describe all the different environments in which The only safety-related application for the RM- Revised response is 10/26/2010 the RM-1000 will be required to operate. Please group 1000 is the Containment High Range radiation included in letter dated these environments into two categories (a) Harsh monitors. The Containment High Range radiation 10/29/10.(TVA to confirm) Response environment, per 10 CFR 50.49, and (b) Mild monitors will be installed in the Main Control Design Criteria is WB-DC- acceptable. TVA Environment. Room, a mild environment. The detectors will be 40-54 is attached to this to update on installed remotely in the containment. letter. issuance of letter to close item.

For WBN Unit 2, a mild environment is defined as:

Due 10/14/10 A defined room or building zone where (1) the temperature, pressure, or relative humidity Identify source of resulting from the direct effects of a design basis reference 3.

event (DBE) (e.g., temperature rise due to steam release) are no more severe than those which TVA to identify would occur during an abnormal plant operational when and by what condition, (2) the temperature will not exceed letter number WB-130°F due to the indirect effects of a DBE (e.g., DC-40-54 was increased heat loads from electrical equipment), submitted to NRC.

(3) the event radiation dose is less than or equal If not previously to 1 x 104 rads, and (4) the total event plus the 40 submitted then year TID (total integrated dose) is less than or please submit this equal to 5 x 104 rads. (Reference 3). document.

What is Reference 3?

TVA Revised Response:

Reference 3 is TVA Design Criteria WB-DC 54, Environmental Qualification To 10CFR50.49, which provides the definition of mild and harsh environments. Attachment 13 to TVA letter dated October 29, 2010 contains WB-DC-40-54, Revision 4.

055 7.5.2 7.5.1 4/19/2010 Responder: Slifer/Clark Date: 5/25/10 5. Y Open Open-NRC RAI No. 15 TVA Letter EICB (Singh)

Review ML102980005 dated 6/18/10 The "Qualification Test Report Supplement, RM-1000 The detectors for these loops will be located in a Revised response is 10/26/2010 Upgrades," Document No. 04508905-1SP Rev. A harsh environment (inside containment). The RM- included in letter dated Response 10/14/10 states that the qualification was done in accordance 1000 will be located in the main control room, 10/29/10. (TVA to confirm) acceptable. TVA with IEEE 323-1974 and -1983. Please describe and which is a mild environment. The RM-1000 and Design Criteria is WB-DC- to update on justify all differences in this qualification methodology associated I/F converters have been tested to the 40-54 is attached to this issuance of letter and that endorsed by Regulatory Guide 1.209. requirements present in IEEE Std. 323-1983 and - letter. to close item.

Specifically address EMI and RFI 1974, as well as the System Requirements including EPRI TR 102323 (Sept. 94) in the design basis. Due 10/14/10 Electro-Magnetic-Interference and Radio Identify source of Frequency Interference (EMI-RFI) testing was reference 3.

performed (the results of the testing are included in the Equipment Qualification Test Report submitted under TVA letter dated March 12, 2010, Reference 4). Since RG 1.209 was not issued until 2007, General Atomics test reports do not reference it.

For WBN Unit 2, a harsh environment is defined as:

A defined room or building zone where either (1)

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date the temperature, pressure, and relative humidity resulting from the direct effects of a DBE (e.g.,

temperature rise due to steam release) are more severe than those which would occur during an abnormal plant operational condition, (2) the temperature will exceed 130°F due to the indirect effects of DBE (e.g., increased heat loads from electrical equipment), (3) the event radiation dose is greater than 1 x 104 rads, or (4) the total event plus the 40-year TID is greater than 5 x 104 rads.

(Reference 3)

What is Reference 3?

TVA Revised Response:

Reference 3 is TVA Design Criteria WB-DC 54, Environmental Qualification To 10CFR50.49, which provides the definition of mild and harsh environments. Attachment 13 to TVA letter dated October 29, 2010 contains WB-DC-40-54, Revision 4.

065 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the Responder: WEC Date: 5/25/10 6. N Open Open-NRC N/A - No TVA Letter EICB (Carte) target submittal date for the FMEA was August 31, Review question was dated 10/5/10 2010. Attachment 37 to letter dated 10/5/10 contains the asked. Item proprietary version of the Common Q PAMS Due 12/1/10 was opened to FMEA and the affidavit for withholding. A non- track proprietary version will be provided at a later date. comm8ittment made by applicant.

101 4/12/2010 Responder: Slifer 7. Y Open Open-NRC N/A TVA is working with the vendor DORL (Poole)

Review to meet the 6/30 date, however The non-proprietary versions of the following RM- The documents, and affidavits for withholding for Documents provided in letter there is the potential this will slip 1000, Containment High Range Post Accident the listed documents were submitted to the NRC dated 07/15/10 Due 10/14/10 to 7/14.

Radiation Monitor documents will be provided by June on TVA letter to the NRC dated July 15, 2010.

30, 2010. Confirm receipt.

1. V&V Report 04508006A

2. System Description 04508100-1TM

3. Qualification Reports 04508905-QR, 04508905-1 SP, 04508905-2SP, 04508905-3SP

4. Functional Testing Report 04507007-1TR 103 7.4 7.4 5/27/2010 Responder: Ayala Date: 5/27/10 8. Y Open Open-NRC EICB RAI No.1 Submittal date is based on EICB (Darbali)

Review ML102910017, current EDCR scheduled issue TVA to submit excerpts of EDCR 52321 Attachment 1 contains excerpts from draft EDCR Response is included in 10/19/10 date.

52321 (i.e., draft Scope and Intent, Unit letter dated 10/29/10. Due 10/31/10.

Difference and Technical Evaluation). The final Waiting for excerpts will be submitted within two weeks after docketed version issuance of the EDCR. to close item.

104 7.4 7.4 5/27/2010 Responder: Merten Date: 5/27/10 9. Y Open Open-NRC EICB RAI No.1 Submittal date is based on EICB (Darbali)

Review ML102910017, current EDCR scheduled issue TVA to submit excerpts of EDCR 52351 Attachment 2 contains excerpts from draft EDCR Response is included in 10/19/10 date.

52351 (i.e., draft Scope and Intent, Unit letter dated 10/29/10 Due 10/31/10.

Difference and Technical Evaluation). The final Waiting for excerpts will be submitted within two weeks after docketed version issuance of the EDCR. to close item.

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date 114 7.2 7.2 6/1/2010 Responder: WEC 10. Y Open Open-NRC EICB RAI TVA Letter EICB (Garg)

Review ML102910008 dated 6/18/10 Provide the resolution of the Eagle 21 Rack 5 lockup The following non-proprietary response was TVA to provide justification Item#35 on update issue. developed from proprietary Westinghouse letter that there are no more Due 10/31/10 WBT-D-2027 (Reference 11), which provided the surprises.

resolution of this issue. Westinghouse approved The write-up this non-proprietary response via e-mail from A. shows that there Drake to M. Clark on June 15, 2010. Revised response is was differences included in letter dated between Unit 1 As documented in WBT-D-1917, Eagle-21 Rack 10/29/10 and 2 but was not 5 LCP Diagnostic Failures, (Reference 14), identified to NRC during the factory acceptance testing for the Unit in earlier 2 Eagle-21 System, Westinghouse noted an response. Are occasional diagnostic failure while performing the there any more parameter update function on Rack 5. surprises like this?

Subsequently, TVA provided to Westinghouse for testing and examination, a Loop Control Processor (LCP) board removed by TVA from Unit 1 Rack 5 for life cycle-based preventive maintenance. TVA personnel familiar with Unit 1 had indicated they had not experienced problems when performing parameter updates on Unit 1 Rack 5.

Based on Westinghouse examination and testing, a difference in hardware was identified between the Unit 1 LCP shipped to Westinghouse, the new Unit 2 Rack 5 LCP, and an older LCP (older than the Unit 1 LCP) from the Westinghouse Eagle 21 test bed. Installed on the Unit 1 LCP was a different version of an 80287 math coprocessor chip (80287 XL).

This version of the 80287 had an improved specification for calculation speed. Use of this chip on both the Unit 2 LCP and the test bed LCP allowed proper performance of the LCP when making parameter updates using the Unit 1/Unit 2 Rack 5 software. Also, use of the slower 80287 on any of the three LCP boards caused failure in parameter update with the Unit 1/Unit 2 Rack 5 software.

Through investigation of historical records, Westinghouse found that the 80287 XL chip had been evaluated and used by its former Process Control Division (now Emerson) for this application, but the current Westinghouse documentation had not been updated. This part has now been evaluated, and the Westinghouse documentation and drawing have been revised to allow use of the 80287 XL coprocessor. The 80287 XL coprocessor has been installed on the Unit 2 Rack 5 LCP, and the appropriate factory acceptance testing has been successfully conducted using this updated board. Additionally, the LCP boards in the balance of the Unit 2 racks have been updated with the 80287 XL

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date coprocessor.

TVA Revised Response:

The Eagle 21 system is installed and the Site Acceptance Test has been completed. To the best of TVAs knowledge there are no unknown issues with the system.

118 7.4 7.4 6/8/2010 Responder: Merten 11. Y Open Open-NRC EICB RAI No.1 Submittal date is based on EICB (Darbali)

Review ML102910017, current EDCR scheduled issue TVA to submit excerpts from EDCR 55385 Attachment 4 contains excerpts from draft EDCR Response is included in 10/19/10 date. Note: The RVLIS EDCR 55385 (i.e., draft Scope and Intent, Unit letter dated 10/29/10 Due 10/31/10. has been split into two EDCRs.

Difference and Technical Evaluation). The final Waiting for The first EDCR is 52601 (Open excerpts will be submitted within two weeks after docketed version Item 91) The second EDCR is issuance of the EDCR. to close item. 55385.

140 The first requirement in the WBN2 PAMS SysRS (i.e., Responder: Clark 12. N Open Open-NRC ML101650255, WBN2 PAMS System EICB (Carte)

R2.2-1) states: The PAMS shall be capable of Review Item No. 4 Requirements Specification operation during normal and abnormal environments WBN Unit 2 FSAR Amendment 100 Section and plant operating modes. The rational for this 7.5.1.8, Post Accident Monitoring System Due 10/22/10 TVA docketed WNA-DS-01617-requirement is that it is necessary to meet Regulatory (PAMS) specifies the Reg. Guide 1.97 variables WBT Rev. 1, RRAS Watts Bar 2 Guide (RG) 1.97. implemented in the Common Q based WBN Unit NSSS Completion Program I&C 2 PAMS Projects Post Accident What document specifies which RG 1.97 variables are Monitoring System- System implemented in the Common Q based WBN2 PAMS? Requirements Specification, dated December 2009.

144 The WBN2 PAMS Software Requirements Responder: WEC 13. N Open Open-NRC ML101650255, TVA Letter WBN2 PAMS Software EICB (Carte)

Specification (WBN2 PAMS SRS) contains a table Review Item No. 8 dated 10/5/10 Requirements Specification (see page iii) titled, Document Traceability & (a) The purpose of NABU-DP-00014-GEN Response provided in letter Compliance, which states that the WBN2 PAMS SRS document is to define the process for system level dated 10/5/10 Due 12/1/10 By letter dated April 8, 2010 was created to support the three documents identifieddesign, software design and implementation, and (ML10101050203), TVA (two of these documents have been provided on the hardware design and implementation for Common NRC Review and WEC to Responses to docketed WNA-SD-00239-WBT, docket). Q safety system development. This document complete response. items a and e Revision 1, "RRAS Watts Bar 2 supplements the Common Q SPM, WCAP-16096- provided. Need NSSS Completion Program I&C (a) Please describe the third document (i.e., NABU- NP-A. The scope of NABU-DP-00014-GEN b-d to be addressed at response to b-d. Projects, Software Requirements DP-00014-GEN Revision 2, Design Process for includes the design and implementation public meeting and audit. Specification for the Post Common Q Safety Systems). processes for the application development. For a Will require information to be Accident Monitoring System, fuller description of the design process described docketed. dated February 2010 (b) Please describe the flow of information between in NABU-DP-00014-GEN please refer to the (ML101050202).

these three documents. Design Process for AP1000 Common Q Safety Systems, WCAP-15927 on the AP1000 docket.

(c) Does the PAMS SRS implement the requirements Since this is a Westinghouse process document in these three documents? that is not specifically referenced in the SRS, it will be removed in the next revision of the (d) Please describe if and how these three documents document.

are used in the development of the PAMS Software Design Description. (b) - Closed to items 142 and 145 (e) Do the WBN2 V&V activities include verification (c) - Closed 142 (d) N/A -

that the requirements of these three documents have Closed to Item been incorporated into the WBN2 PAMS SRS. (d) - Closed to Item 142 No. 142 (e) WBN2 PAMS Software Requirements Specification (WNA-SD-00239-WBT, Rev. 1) refers to Document Traceability & Compliance table on page iii. This table has three entries; Design Process for Common Q Safety Systems (NABU-DP-00014-GEN, Rev. 2), RRAS Watts Bar 2 NSSS Completion Program I&C Projects

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date Post Accident Monitoring System - System Requirements Specification (WNA-DS-01617-WBT, Rev. 1), and RRAS Watts Bar 2 NSSS Completion Program I&C Projects Post Accident Monitoring System - System Design Specification (WNA-DS-01667-WBT, Rev. 1).

IV&V performed a Requirements Traceability Assessment during which it reviewed Software Requirements Specification (WBN2 PAMS SRS, WNA-SD-00239-WBT, Rev. 1) against System Requirements Specification (WNA-DS-01617-WBT, Rev. 1) and System Design Specification (WNA-DS-01667-WBT, Rev. 1). Requirements within Software Requirements Specification that are referring to NABU-DP-00014-GEN, Rev 2, Design Process for Common Q Safety Systems, have also been reviewed for traceability and compliance. During IV&V's RTA effort the anomaly reports V&V-769 and V&V- 770 have been initiated and reported in the IV&V Phase Summary Report for the System Definition Phase, WNA-VR-00283-WBT, Rev. 0.

IV&V has verified that the requirements in SRS are derived from the specified documents listed in the Document Traceability and Compliance Table of WBN2 PAMS SRS.

154 7.2 7.2 FSAR section 7.2.1.1.10, setpoints: NRC staff has Responder: Craig/Webb 14. N Open Open-NRC ML101720589, TVA Letter EICB RAI ML102861885 sent to EICB (Garg) issued RIS 2006-17 to provide guidance to the industry Review Item No. 6 and dated 10/5/10 DORL regarding the instrument setpoint methodology which (Q1) Refer to the response to letter item 13, RAI Response is not acceptable. EICB RAI complies with 10 CFR 50.36 requirements. Provide Matrix Item 51. A revised response will be Due 10/31/10 ML102861885 the information on how the WBN2 setpoint submitted in the letter dated Item No. 8 methodology meets the guidance of RIS 2006-17 and (Q2) EEB-TI-28's single sided methodology 10/29/10. FSAR AMD 100.

include this discussion in this section. Also, by letter conforms with WBN's design basis commitment to Since all the dated May 13, 2010, TVA provided Rev. 7 of EEB-TI- ensure that 95% of the analyzed population is setpoint and 28 to the staff. The staff noted that section 4.3.3.6 of covered by the calculated tolerance limits as allowable value EEB-TI-28 discusses the correction for setpoints with a defined in NRC Reg Guide 1.105, Revision 2, for Unit 2 is single side of interest. It should be noted that the staff 1986 that was in affect during WBN Unit 1 calculated and has not approved this aspect of setpoint methodology licensing. The single sided methodology is not added to TS, TVA for Unit 1. The staff finds this reduction in used for any TSTF-493 setpoints that use TI-28 needs to address uncertainties is not justified unless it can be methodology. the latest criteria demonstrated that the 95/95 criteria is met. Therefore, and that include either remove this reduction factor for single sided TVA Revised Response: 95/95 criteria.

uncertainties or justify how you meet the 95/95 criteria Why the last given in RG 1.105. In order to respond to other NRC comments on sentence has the setpoint methodology discussion in FSAR been modified by Amendment 100, TVA reviewed the previous adding TI-28. It response to this RAI. This resulted in a complete was NRCs rewrite of the responses to this question as shown understanding below. As a result, the response does not that all setpoints specifically address the NRC Follow-up Request. have to meet TI-However, the overall responses to all of the NRC 28 RAIs on setpoint methodology addresses this item.

(Q1) WBN 2 implementation of TSTF-493, Rev. 4, Option A includes addition of a discussion of the WBN setpoint

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date methodology in FSAR section 7.1.2.1.9.

(Q2) Electrical Engineering Branch (EEB)

Technical Instruction (TI) 28, Setpoint Calculations, single-sided methodology conforms to WBN's design basis commitment to ensure that 95% of the analyzed population is covered by the calculated tolerance limits as defined in NRC Reg Guide 1.105, Revision 2, 1986, which was in effect during WBN Unit 1 licensing. Single-sided multipliers are not used for any TSTF-493 setpoints.

There are some areas where a 95%

confidence level could not be achieved.

Some examples would be harsh environment instrumentation where only 2 or 3 devices were tested in the 10CFR50.49 program. In these situations, the Confidence is referred to as high..

156 7.2 7.2 FSAR section 7.2.2.1.1 states that dashed lines in Responder: WEC 15. N Open Open-NRC ML101720589, TVA Letter Response on hold pending EICB (Garg)

Figure 15.1-1designed to prevent exceeding Review Item No. 8 dated 10/5/10 Westinghouse review.

121% of power.The value of 121% is changed Per Westinghouse letter WBT-D-2340, Response is included in from 118%. The justification for this change states that TENNESSEE VALLEY AUTHORITY WATTS letter dated 10/5/10 Amendment 101 this was done to bring the text of this section in BAR NUCLEAR PLANT UNIT 2 FSAR Markups Submitted agreement with section 4.3.2.2.5, 4.4.2.2.6 and table Units I and 2 118% vs. 121 % and Correction to 10/29/10.

4.1-1. However, Table 4.1-1 and section 4.3.2.2.5 still RAI Response SNPB 4.3.2-7, (Reference 17) the show this value as 118%. Justify the change. 118% value should be 121%. Depending on the use in the FSAR either 118% or 121% are the correct values. As a result of the question, Westinghouse reviewed all locations where either 118% or 121% are used and the context of use and provided a FSAR markup to reflect the correct value at the specific location. These changes will be incorporated in a future FSAR amendment.

183 7/15/2010 Responder: WEC 16. Y Open Open-NRC EICB RAI TVA Letter EICB (Carte)

Review ML102980066 dated 10/21/10 An emphasis is placed on traceability in System The generic Software Requirements Specification Response provided in letter Item No. 9 Enclosure 1 Requirements Specifications in the SRP, in the applies except as modified by the WBN Unit 2 dated 10/21/10 Due 12/1/10 Item No. 4 unmodified IEEE std 830-1993, and even more so System Requirements Specification.

given the modifications to the standard listed in NRC to issue RAI Regulatory Guide 1.172, which breaks with typical NRC use of the word should to say Each identifiable requirement in an SRS must be traceable backwards to the system requirements and the design bases or regulatory requirements that is satisfies On page 1-2 of the Post Accident Monitoring Systems Software Requirements Specification in the background section, is the sentence Those sections of the above references that require modification from the generic PAMS are defined in the document referring purely to the changes from WNA-DS-01617-WBT Post Accident Monitoring System-System

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date Requirements Specification or is it saying that there are additional changes beyond those and that the SRS defines them?

If there are additional changes, what is their origin?

186 7.7.8 7.7.1. 7/15/2010 Responder: Perkins/Clark 17. Y Open Open-NRC EICB RAI No.6 TVA Letter EICB (Darbali) 12 Review ML102910017, dated 10/5/10 Along with Amendment 96, TVA submitted a list of No. The previous wording reflected operation of Response included in letter 10/19/10 Bechtel changes for each section. Change number 45 the computer based AMSAC system. The dated 10/29/10 Due Date addresses a change to section 7.7.1.12, AMSAC, change reflects the operation of the relay logic 10/31/10. Waiting however, the Justification column states This change based system that replaced the original computer for docketed is not included. EDCR 52408 installs the AMSAC in based system in Unit 1. Unit 2 is installing a Response is satisfactory. version to close Unit 2. It does not have a trouble alarms. The existing similar relay logic based system, so the change to Issue date of Amendment item.

words better reflect the operation of the system. the Unit 1 wording is applicable to Unit 2. 101 is not yet determined.

Even thought this change was not included in EDCR 52408 Summary Follow-up NRC Amendment 96, will it be included in a future Request:

amendment? A Purchase Order was issued to Nutherm International to provide a Unit 2 cabinet with the TVA to state that no Also, please submit a summary of EDCR 52408. same functions as the current Unit 1 AMSAC. further FSAR changes are EDCR 52408 will install the cabinet and planned.

route/install cabling to provide the necessary inputs/outputs for/from the AMSAC cabinet.

In the Main Control Room, three cables will be installed for the AMSAC handswitch on 2-M-3 and AMSAC NOT ARMED and AMSAC ACTUATED annunciator windows.

In the Turbine Building, two pressure transmitters will be installed in two local panels to sense turbine pressure. Cables will be routed to the transmitters to provide the signal and power. Four cables will be routed to a local panel to provide steam generator level signals.

In the Control Building, three cables will be routed to separation relays which will provide the start signal for the Motor Driven Auxiliary Feedwater Pumps, Turbine Driven Auxiliary Feedwater Pump, and initiate a Turbine Trip. Additionally, a cable will be routed to Unit 2 ICS for AMSAC NOT ARMED and AMSAC ACTUATED log points.

This EDCR is intended to configure Unit 2 AMSAC like Unit 1 when possible.

TVA Revised Response:

No further changes to the FSAR associated with AMSAC are planned.

200 7.2 7/21/2010 Responder: Clark 18. Y Open Open-NRC EICB RAI TVA Letter 7.3 The statement in SER Section 7.5.1 is supported Review ML102980066 dated 10/5/10

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date 7.5 Amendment 99 of the Watts Bar Unit 2 FSAR Section by the following: Response provided in letter Item No. 2 7.7 7.5, Instrumentation Systems Important to Safety,

• I&C Systems for Normal Operation FSAR dated 10/5/10 Amendment 101 does not include any description of instrumentation for Section Submitted normal operation; therefore, Section 7.5 of the FSAR

• Eagle 21 7.2 10/29/10.

does not support statements made in the SER Section

• Neutron Monitoring 7.2 7.5; compare SER (ML072060490) Section 7.5.1 and

• Foxboro Spec 200 7.3 (List of other sections FSAR Amendment 99 Section 7.5. Please identify in attachment 34) where, in the docketed material, information exists to

• Foxboro I/A 7.7.11 (new section will be added support the statements in the SER Section 7.5.1. by amendment 101) (other sections have been previously provided)

• Plant Computer 7.5.2

• Rod Control 7.7.1.2

• CERPI 7.7.1.2

• Control Rod Drive 7.7.1.1

• Incore Neutron Monitoring 7.7.1.9

• Lose Part Detection/Monitoring 7.6.7

• Vibration Monitoring RCP 5.5.1.2

• Control Boards 7.1.1.10

• RVLIS 7.5, 5.6 201 7.7.1. 7.7.11 7/21/2010 Responder: Webb 19. Y Open Open-NRC EICB RAI TVA Letter EICB (Carte) 1.1 Review ML102980066 dated 10/5/10 Amendment 99, FSAR Section 7.7.1.1.1, "Reactor These functions are within the scope of the Response provided in letter Item No. 3 Control Input Signals (Unit 2 Only)," contains a Foxboro I/A system. Section 7.7.11 will be added dated 10/5/10 Amendment 101 description of functions performed uniquely for Unit 2. to the FSAR in amendment 101 to provide a Submitted Please describe the equipment that performs this discussion of the DCS. 10/29/10.

function (in sufficient detail to support a regulatory evaluation), and evaluate this equipment against the appropriate regulatory criteria.

211 7.5.1. 7/27/2010 Responder: Clark 20. N Open Open-NRC EICB RAI TVA Letter Relates to SE Sections:

EICB (Carte) 1 Review ML102980066 dated 10/5/10 7.5.5, Plant Computer 7.5.2 FSA Table 7.1-1 shows: "The extent to which the The WBN 2 FSAR Section 7.5 defines the Response included in letter Item No. 5 7.6.10, Loose Part Monitoring 7.6.1 recommendations of the applicable NRC regulatory following systems as important to safety dated 10/5/10 Amendment 101 7.7.1, Control System 7.7.1 guides and IEEE standards are followed for the Class Submitted Description 7.7.2 1E instrumentation and control systems is shown 1. Post Accident Monitoring including: 10/29/10. 7.7.2, Safety System Status 7.7.4 below. The symbol (F) indicates full compliance. Those a. Common Q Post Accident Monitoring System Monitoring System 7.9 which are not fully implemented are discussed in the (Safety-Related) 7.7.4, PZR & SG Overfill referenced sections of the FSAR and in the footnotes i. Reactor Vessel Level 7.9, Data Communications as indicated." ii. Core Exit Thermocouples iii. Subcooling Margin Monitor Please describe how systems that are important to b. Eagle 21 indications (Safety-Related) safety, but not 1E, comply with 10 CFR 50.55a(a)1: c. Foxboro Spec 200 indications (Safety-Related)

"Structures, systems, and components must be d. Neutron Monitoring (Source and Intermediate designed, fabricated, erected, constructed, tested, and Range) (Safety-Related) inspected to quality standards commensurate with the e. Radiation Monitors (Safety-Related) importance of the safety function to be performed." f. Unit 1 and Common shared indications (Safety-Related)

g. Foxboro I/A indications (Non-Safety-Related)

h. Radiation Monitors (Non-Safety-Related)

i. CERPI (Non-Safety-Related)

j. Integrated Computer System (Non-Safety-Related)

k. Unit 1 and Common shared indications (Non-Safety-Related)

Post Accident Monitoring Instrumentation Design Criteria, WB-DC-30-7, Rev. 22, Appendix A

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date provides the minimum quality requirements for each Category (1, 2 or 3) of variable. By definition, no Category 1 variable can be non-safety-related. Therefore, non-safety-related variables and the source equipment are limited to category 2 or 3. Since some variables are designated as having more than 1 category, the requirements of the highest category apply.

Additional design criteria information for specific systems is contained in:

g. Foxboro I/A - Site-Specific Engineering Specification WBN Unit 2 NSSS and BOP Controls Upgrade Specification Rev. 1 (Attachment 23)

h. CERPI - Rod Control System Description, N3-85-4003, Rev. 12 Section 2.2, Design Requirements

i. Radiation Monitors - Design Criteria Document WB-DC-40-24, Radiation Monitoring - (Unit 1 /

Unit 2), Rev. 21

j. Integrated Computer System - Design Criteria Document WB-DC-30-29 Plant Integrated Computer System (ICS), Rev. 8 (Submitted under TVA to NRC letter dated August __, 2010)

2. Plant Computer (Integrated Computer System)

- See Item j above.

The WBN 2 FSAR Section 7.6, defines the following non-safety-related systems as other systems required for safety

1. Foxboro I/A - While not specifically described, functions performed by the system are described in this section. The qualify requirements are described above.

2. Lose Part Monitoring System - Design Criteria Document WB-DC-30-31, Loose Parts Monitoring System, Rev. 4, provides the quality requirements for this system. A description of the distributed control system will be added as FSAR section 7.7.1.11 in FSAR Amendment 101.

Installation is performed in accordance with the quality requirements of either the Bechtel or TVA work order processes based on the quality classification of the equipment being installed.

Vendor testing is performed in accordance with procurement specification requirements which are based on the type and quality classification of the equipment. Preoperational testing is performed in accordance with Chapter 14 of the FSAR.

213 7.5.2 7/27/2010 Responder: WEC 21. N Open Open-NRC EICB RAI EICB Review ML102980066 (Carte) By letter dated June 18, 2010 (ML101940236) TVA Conformance with IEEE 603 is documented in the Response is included in Item No. 18 stated (Enclosure 1, Attachment 3, Item No. 3) that the revised Common Q PAMS Licensing Technical letter dated 10/25/10 PAMS system design specification and software Report and the Common Q PAMS System Design Due 12/31/10

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date requirements specification contain information to Specification. NNC to review and revise address the "Theory of Operation Description." The this question after LTR R1is staff has reviewed these documents, and it is not clear Attachment 1 contains the proprietary version of received. .

how this is the case. The docketed material does not Westinghouse document Tennessee Valley appear to contain the design basis information that is Authority (TVA), Watts Bar Unit 2 (WBN2), Post-required to evaluate compliance with the Clause of Accident Monitoring System (PAMS), Licensing IEEE 603. Technical Report, Revision 1, WNA-LI-00058-(1) Please provide the design basis (as described in WBT-P, Dated October 2010 IEEE 604 Clause 4) of the Common Q PAMS.

(2) Please provide a regulatory evaluation of how the Attachment 8 contains the proprietary version of PAMs complies with the applicable regulatory Westinghouse document Nuclear Automation requirements for the theory of operation. Watts Bar 2 NSSS Completion Program I&C For example: Regarding IEEE 603 Clause 5.8.4 (1) Projects Post Accident Monitoring System -

What are the manually controlled protective actions? System Design Specification, WNA-DS-01667-(2) How do the documents identified demonstrate WBT, Rev. 2 dated September 2010.

compliance with this clause?

214 7/27/2010 Responder: WEC 22. N Open Open-NRC EICB RAI TVA Letter EICB (Carte)

Review ML102980066 dated 10/5/10 By letter dated June 18, 2010 (ML101940236) TVA According to "The Software Program Manual for Response provided in letter Item No. 11 stated (Enclosure 1, Attachment 3, Item No. 10) that Common Q Systems," WCAP-16096-NP-1A, the dated 10/5/10 Due 12/1/10 the approved Common Q Topical Report contains Software Safety Plan only applies to Protection information to address the "Safety Analysis." The class software and PAMS is classified as WEC References Common Common Q SPM however states that a Preliminary Important-to-safety. Exhibit 4-1 of the SPM Q PAMS preliminary Hazards Analysis Report and the V&V reports shows that PAMS is classified as Important-to- hazards analysis is document the software hazards analysis. Please Safety referenced in the SRS.

Provide these documents. WEC to delete.

244 8/3/2010 Responder: WEC 23. N Open Open-NRC EICB RAI LIC-101 Rev. 3 Appendix B EICB (Carte)

Review ML102980066 Section 4, "Safety Evaluation" Section 8.2.2 of the Common Q SPM (ML050350234) The process related requirements have been Response is provided in Item No. 14 states: "the information relied states that the Software Requirements Specification removed from revision 2 of the Software letter dated 10/25/10. Due 10/22/10 upon in the SE must be (SRS) shall be developed using IEEE 830 and RE Requirements Specification (SRS). docketed correspondence."

1.172. Clause 4.8, "Embedding project requirements in the SRS," of the IEEE 830 states that an SRS Attachment 3 of letter dated 10/25/10 contains the LIC-101 Rev. 3 states: "The should address the software product, not the process proprietary version of Westinghouse document safety analysis that supports the of producing the software. In addition Section 4.3.2.1 Nuclear Automation, Watts Bar 2 NSSS change requested should include of the SPM states "Any alternatives to the SPM Completion Program, I&C Projects, Software technical information in sufficient processes or additional project specific information for Requirements Specification for the Post Accident detail to enable the NRC staff to the ...SCMP...shall be specified in the PQP. Monitoring System, WNA-SD-00239-WBT, make an independent Revision 2, Dated September 2010. assessment regarding the Contrary to these two statements in the SPM, the acceptability of the proposal in WBN2 PAMS SRS (ML101050202) contains many terms of regulatory requirements process related requirements, for example all and the protection of public seventeen requirements in Section 2.3.2, health and safety."

"Configuration Control," address process requirements for configuration control.

Please explain how the above meets the intent of the approved SPM.

246 8/3/2010 Responder: WEC 24. N Open Open-NRC EICB RAI LIC-101 Rev. 3 Appendix B EICB (Carte)

Review ML102980066 Section 4, "Safety Evaluation" Section 4.3.2.1, "Initiation Phase" of the Common Q As agreed ISG6 does not apply to the Common Q Response is provided in Item No. 15 states: "the information relied SPM (ML050350234) requires that a Project Quality PAMS platform. The information required to letter dated 10/25/10 upon in the SE must be Plan (PQP) be developed. Many other section of the address this question concerning the PQP and Due 10/22/10 docketed correspondence."

SPM identify that this PQP should contain information SPM has been added to compliance matrix in required by ISG6. Please provide the PQP. If "PQP" revision 1 of the Licensing Technical Report. LIC-101 Rev. 3 states: "The is not the name of the documentation produced, safety analysis that supports the please describe the documentation produced and Attachment 1 of letter dated 10/25/10 contains the change requested should include provide the information that the SPM states should be proprietary version of Westinghouse document technical information in sufficient

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date in the PQP. Tennessee Valley Authority (TVA), Watts Bar detail to enable the NRC staff to Unit 2 (WBN2), Post-Accident Monitoring System make an independent (PAMS), Licensing Technical Report, Revision 1, assessment regarding the WNA-LI-00058-WBT-P, Dated October 2010 acceptability of the proposal in terms of regulatory requirements and the protection of public health and safety."

247 8/8/2010 Responder: WEC 25. N Open Open-NRC EICB RAI LIC-101 Rev. 3 Appendix B EICB (Carte)

Review ML102980066 Section 4, "Safety Evaluation" As part of the Common Q topical report development The implementation documents required by the Response is provided in Item No. 16 states: "the information relied effort, Westinghouse developed the Software Program SPM are identified in the compliance matrix in letter dated 10/25/10 upon in the SE must be Manual for Common Q Systems (ML050350234) to revision 1 of the Licensing Technical Report. Due 10/22/10. docketed correspondence."

address software planning documentation. The NRC reviewed the SPM and concluded: the SPM specifies Attachment 1 of letter dated 10/25/10 contains the LIC-101 Rev. 3 states: "The plans that will provide a quality software life cycle proprietary version of Westinghouse document safety analysis that supports the process, and that these plans commit to Tennessee Valley Authority (TVA), Watts Bar change requested should include documentation of life cycle activities that will permit the Unit 2 (WBN2), Post-Accident Monitoring System technical information in sufficient staff or others to evaluate the quality of the design (PAMS), Licensing Technical Report, Revision 1, detail to enable the NRC staff to features upon which the safety determination will be WNA-LI-00058-WBT-P, Dated October 2010 make an independent based. The staff will review the Implementation of the assessment regarding the life cycle process and the software life cycle process acceptability of the proposal in design outputs for specific applications on a plant- terms of regulatory requirements specific basis. Please identify the implementation and the protection of public documentation produced as a result of following the health and safety."

SPM, and state what information will be docketed.

248 8/8/2010 Responder: WEC 26. N Open Open-NRC LIC-101 Rev. 3 Appendix B EICB (Carte)

Review Section 4, "Safety Evaluation" As part of the Common Q topical report development The documents are identified in the compliance Response is provided in states: "the information relied effort, Westinghouse developed the Software Program matrix in revision 1 of the Licensing Technical letter dated 10/25/10 upon in the SE must be Manual for Common Q Systems (ML050350234) to Report Due 10/22/10. docketed correspondence."

address software planning documentation. The NRC reviewed the SPM and concluded: the SPM specifies Attachment 1 of the letter dated 10/25/10 contains LIC-101 Rev. 3 states: "The plans that will provide a quality software life cycle the proprietary version of Westinghouse safety analysis that supports the process, and that these plans commit to document Tennessee Valley Authority (TVA), change requested should include documentation of life cycle activities that will permit the Watts Bar Unit 2 (WBN2), Post-Accident technical information in sufficient staff or others to evaluate the quality of the design Monitoring System (PAMS), Licensing Technical detail to enable the NRC staff to features upon which the safety determination will be Report, Revision 1, WNA-LI-00058-WBT-P, Dated make an independent based. The staff will review the Implementation of the October 2010 assessment regarding the life cycle process and the software life cycle process acceptability of the proposal in design outputs for specific applications on a plant- terms of regulatory requirements specific basis. Please identify the design outputs and the protection of public produced as a result of following the SPM, and state health and safety."

when what information will be docketed.

251 8/8/2010 Responder: WEC 27. N Open Open-NRC LIC-101 Rev. 3 Appendix B EICB (Carte)

Review Section 4, "Safety Evaluation" The SPM describes the software testing and The software testing performed and documents Response is provided in states: "the information relied documents that will be created. The SPM also created are addressed by the SPM Compliance letter dated 10/25/10 upon in the SE must be describes the testing tasks that are to be carried out. matrix contained in Revision 1 of the Licensing Due 10/22/10. docketed correspondence."

The acceptance criterion for software test Technical Report.

implementation is that the tasks in the SPM have been NOTE: Samir LIC-101 Rev. 3 states: "The carried out in their entirety. Please provide Attachment 1 of the letter dated 10/25/10 contains please check safety analysis that supports the information that shows that testing been successfully the Proprietary version of Westinghouses with Norbert to change requested should include accomplished. document titled: Tennessee Valley Authority see if the technical information in sufficient (TVA), Watts Bar Unit 2 (WBN2), Post-Accident response is detail to enable the NRC staff to Monitoring System (PAMS), Licensing Technical complete or make an independent Report, Revision 1, WNA-LI-00058-WBT-P, Dated partial. assessment regarding the October 2010 acceptability of the proposal in Thanks, terms of regulatory requirements

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date and the protection of public Steve health and safety."

266 8/11/2010 Responder: Webb/Webber 28. Y Open Open-NRC TVA Letter EICB (Carte)

Review dated 10/21/10 Please provide a high level description of the Foxboro FSAR section 7.7.1.11 will be added in Response provided in letter Enclosure 1 IA equipment used at WBN2. This description should Amendment 101. In discussions with the NRC dated 10/21/10 Amendment 101 Item No. 9 be more detailed than a brochure on the product line reviewer on October 4, 2010 it was agreed that Submitted (or available on the web), and less detailed than a the new FSAR section along with previously 10/29/10.

technical manual on each field replaceable unit. It is submitted documents should be sufficient to expected that such literature already exists. address this request. The NRC reviewer will notify TVA if additional documentation is required.

267 8/11/2010 Responder: WEC 29. N Open Open-NRC EICB (Carte)

Review By letter dated June 18, 2010 (ML101940236) TVA This is addressed in the Licensing Technical Response provided in letter stated that the software safety plan (SSP) was not Report, Revision 1, WNA-LI-00058-WBT-P. dated 10/25/10 applicable to PAMS applications (see Watts Bar 2 - Due 10/22/10 Common Q PAMS ISG-6 Compliance matrix Item No. Attachment 1 of the letter dated 10/25/10 10); however, reference No. 30 of the SRS contains the Proprietary version of (ML101050202) is: 00000-ICE-37727, Rev. 0, "Post Westinghouses document titled: Tennessee Accident Monitoring System Software Preliminary Valley Authority (TVA), Watts Bar Unit 2 (WBN2),

Hazard Analysis for the Common Q PAMS Project." A Post-Accident Monitoring System (PAMS),

Preliminary Hazard Analysis is required by the SSP. Licensing Technical Report, Revision 1, WNA-LI-Please explain. 00058-WBT-P, Dated October 2010 277 7.6 7.6.3 8/27/2010 Responder: Clark 30. Y Open Open-NRC EICB RAI EICB (Garg)

Review ML102910008 NUREG 0847, "Safety evaluation report Related to the Removal of the Upper Head Injection System was Response is included in Item#61 operation of Watts Bar Nuclear Plant, Units 1 and 2." reviewed as part of the WBN Unit 1 original and letter dated 10/29/10 Due 10/31 has section 7.6.3 which discusses the, "Upper Head was reviewed by the staff in SER Supplement 6:

Injection Manual Control" system but has been removed from the FSAR. Please provide the 1.7 Summary of Outstanding Issues - PAGE 1-information regarding when this system was removed, 3 "Supplement 7" and the justification for the removal of the system and if the NRC staff has previously reviewed and accepted (22) Removal of upper head injection system the removal of the system provide the reference to the Opened (SSER 7) 6.3.1 (TAC 77195) staff's SE.

When the removal of UHI System was evaluated by the NRC, this should be applied to both sections 6.3.1 and 7.6.3, since the UHI Control System has no function once the UHI System has been removed.

281 7.6 7.6.8 8/27/2010 Responder: Webb 31. N Open Open-NRC EICB RAI EICB (Garg)

Review ML102910008 For FSAR Section 7.6.8 in amendment 96, redline Attachment 5 contains the WBN Unit 2 FSAR Response provided in letter Item#65 version has completely rewritten this section of the markup for Section 7.6.8, Interlocks for RCS dated 10/29/10 Tva to docket in FSAR, however, the staff is not able to determine any Pressure Control During Low Temperature 10/31 letter changes made to the section. Explain what changes Operation, showing what was changed between have been made to this FSAR Section. Amendments 95 and 96.

283 7.7.5 XX 8/27/2010 Responder: Clark 32. N Open Open-NRC EICB RAI No.13 This item is a follow-up question EICB (Darbali)

Review ML102910017, to item 96.

Follow-up to item 96 1. Steam generator power operated relief valve Response is included in 10/19/10 control system letter dated 10/29/10 Due 10/31/10 On Open Item 96, regarding the implementation of IEN 79-22, part of TVAs response was: The potential scenario for this event is addressed in 15.2.13, Accidental The non-safety-related device/systems within the Depressurization of the Main Steam System.

scope of IEN 79-22 are:

1. Steam generator power operated relief valve control 2. Pressurizer power operated relief valve

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date system control system

2. Pressurizer power operated relief valve control system The potential scenario for this event is

3. Main feedwater control system depressurization of the reactor coolant

4. Automatic rod control system. system due to a relief valve failing open.

This is addressed in 15.2.12, Accidental Failure of these systems/devices due to a high energy Depressurization of the Reactor Coolant line break is fully addressed in Chapter 15, Accident System and 15.3.1, Loss Of Reactor Coolant Analysis of the WBN Unit 2 FSAR. From Small Ruptured Pipes Or From Cracks In Large Pipes Which Actuate The Please identify the sections of FSAR Chapter 15 that Emergency Core Cooling System.

address the failures of these systems.

3. Main feedwater control system The potential scenarios for this event are:

a. A loss of feedwater due a feedwater isolation valve failing closed. This is addressed in 15.2.8, Loss of Normal Feedwater.

b. A feedwater regulating valve failing open. This is addressed in 15.2.10, Excessive heat removal due to feedwater system malfunctions.

4. Automatic rod control system The potential scenarios are uncontrolled rod withdrawal events that are addressed in 15.2.1, Uncontrolled Rod Cluster Control Assembly Bank Withdrawal From A Subcritical Condition, 15.2.2, Uncontrolled Rod Cluster Control Assembly Bank Withdrawal At Power, and 15.2.3, Rod Cluster Control Assembly Misalignment.

285 7.3.3 7.3 8/27/2010 Responder: McNeil 33. Y Open Open-NRC EICB RAI No.15 This item is a follow-up question EICB (Darbali)

Review ML102910017, to item 22 Follow-up to item 22 The Foxboro SPEC 200 components are Response is included in 10/19/10 physically arranged in the racks to meet the letter dated 10/29/10 Do the control loops meet the requirements of IEEE- requirements of IEEE-279 and Watts Bar Design Due 10/31/10.

279? If not are they isolated from the circuit which Criteria WB-DC-30-4, Separation/Isolation. Waiting for meets the requirements of 279. docketed version Foxboro (Invensys) uses two IE analog modules to close item.

to isolate IE to Non-IE signals. These are Contact Output Isolator (Model Number 2A0-L2C-R Relay Output) and Voltage-to-Current Converter (Model Number 2A0-VAI), both of which have the Input and Output signals isolated.

289 9/2/2010 Responder: Faulkner 34. N Open Open-NRC RAI No. 24 TVA Letter EICB (Singh)

Review ML102980005 dated 10/21/10 There are 4 Containment High Range Radiation Response provided in letter 10/26/2010 Enclosure 1 Provide an ISG 2 diversity analysis for the containment Monitors (HRRMs) for WBN2, a pair in upper dated 10/21/10 Please refer to Item No. 20 high range accident monitors RM-1000. containment and a pair in lower containment. highlighted Each pair completely meets the requirements for sections of safety related equipment including separation, response that independence, electrical isolation, seismic address NRC qualification, quality requirements, etc. Each comments 1) and monitor channel is a standalone instrument loop 2).

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date with traditional individual panel readout. They are not a part of a Highly Integrated Control Room Staff has the (HICR) and there is no diversity question relating following to the HRRMs and any HICR infrastructure. comments on the Therefore, the response to this RAI will address proposed TVA the functional uses of the HRRMs and the response per the alternate and diverse instrumentation that could 10/21/submittal:

be used for those functions should a common mode software issue render both trains of HRRMs 1)Response non-functional. addresses upscale failure.

The Containment HRRMs have no automatic Please explain actuation function. They only provide indication how downscale as required by RG 1.97R2. They are used at failure of all WBN for 2 functions. They are used by the HRRM operators in Emergency Operating Instructions channels is (EOI) as one of the indications of abnormal detected and containment conditions indicative of a Loss of appropriate Coolant Accident (LOCA) after a Reactor Trip and actions taken.

Safety Injection and they are used in Emergency Plan Implementing Procedures (EPIP) to assist 2) Please confirm with event classification for events which involve that the fuel cladding degradation. location for obtaining the In the EOI procedures, there are several diverse RCS sample is indications of containment conditions that are accessible after used to detect a LOCA and they are Containment an accident.

Pressure, Containment Temperature, and Containment Sump Level. All of these instrument Otherwise, the channels are diverse to the HRRMs in that they response is do not share a software platform or any integrated acceptable.

information or control system features. The HRRMs functional through individual, self Due 10/31/10 contained, microprocessor based instrument loops. Containment Pressure and Sump Level indications are provided through Eagle 21 equipment which is completely diverse from the HRRMs. Containment Temperature is provided through Foxboro Spec 200 instrument channels which are completely diverse from the HRRMs.

All of these readouts are through traditional panel meters and are not part of any HICR infrastructure.

In the EPIPs, the HRRMs are used to indicate loss of fuel clad barrier and the potential loss of a containment barrier. Potential fuel clad damage can also be determined from samples taken from the Reactor Coolant System and from Incore Thermocouple readings. RCS sampling does not rely on plant instrumentation systems and the Incore Thermocouple System uses a Common Q software platform which is diverse from the HRRMs. 2) The accessibility required to obtain post accident samples of RCS has been demonstrated to be a viable post accident action at WBN.

Should all 4 channels of HRRMs fail upscale,

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date Annunciator Response Instructions would be followed and they call for evacuation of containment, sampling of RCS, checking other non-accident Radiation Monitors, notification of Radiological Control personnel to investigate, potential transition to Abnormal Operating procedures for management of potential radioactive material release, and evaluation under the Emergency Plan Implementing Procedures for event classification. All of these actions are conservative actions. 1) Should all 4 channels of the HRRMs fail downscale, the operators would turn to diverse indications as noted above before taking any further action.

Therefore, there are diverse methods and equipment sets that can be used for any functions provided by the HRRMs should both channels become nonfunctional.

291 7.7 9/7/2010 Responder: Clark 35. Y Open Open-NRC TVA Letter EICB (Carte)

Review dated 10/21/10 The equation at the bottom of Amendment 100 page The errors in the terms within the equation for Response provided in letter Enclosure 1 7.7-3 is wrong. There are two ways that this equation total rod speed error [TE] will be corrected in dated 10/21/10 Amendment 101 Item No. 21 is inconsistent with the text above it. FSAR Amendment 101 as shown below: Submitted 10/29/10.

1 1 1 1 1 1

293 7.7.4 7.2.2. 9/8/2010 Responder: Craig 36. Y Open Open-NRC EICB RAI TBD EICB RAI ML102861885 sent to EICB (Marcus) 3.5 Review ML102861885 DORL FSAR Amendment 100, Section 7.2.2.3.5 discusses Steam Generator Overfill Response is acceptable Item No. 22 Steam Generator Water Level and protection against FSAR Section 7.2 discusses reactor trip NRC to issue low water level. However, this section does not functions. Section 7.2.2.3.5 describes the Low- Response is included in formal RAI to discuss protection against Steam Generator overfill. Low steam generator level reactor trip. The letter dated 10/29/10 TVA.

Additionally, FSAR Section 7.2.2.3.4 discusses steam generator High-High level interlock (P-14)

Pressurizer Water Level and provides minimal protects against steam generator overfill by TVA formal information concerning Pressurizer overfill. Please initiating feedwater isolation and a turbine trip. response due provide a discussion of protection against Pressurizer Reactor trip occurs indirectly as a result of the 10/31/10 and Steam Generator overfill. turbine trip if power is above 50%, the P-9 interlock. This function is identified as ESFAS interlock P-14 in FSAR Section 7.3, Table 7.3-3.

The High-High level interlock is also discussed in FSAR Section 10.4.7.3. Section 15.2.10 analyzes the feedwater malfunction event which causes one or more feedwater control valves to fail to the fully open position.

Pressurizer Overfill The High pressurizer water level reactor trip protects against pressurizer overfill. This trip is described in FSAR Section 7.2.1.1.2 (3). Section 7.2.2.3.4 discusses specific control and protection interactions related to pressurizer level control.

The high water level trip setpoint provides sufficient margin such that the undesirable condition of discharging liquid coolant through the

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date safety valves is avoided. Pressurizer level is modeled in various Chapter 15 events to ensure that critical protection functions will function as required.

300 Need Radiation Monitoring System Description/Design Responder: Temples/Mather 37. N Open Open-NRC RAI No. 25 Criteria Review ML102980005 (1) The Radiation Monitoring Design Criteria Response is included in 10/26/2010 Are detectors different from Unit 1. Describe any Document, WB-DC-40-24, Revision 21 is letter dated 10/29/10 Due 10/31/10 differences. contained in Attachment 6 to letter dated TVA to address October 31, 2010. the following Are there any commercially dedicated parts in the RM- comments:

1000? If so, how are they dedicated? (2) Attachment 7 contains the General Atomics detector differences report. The containment (1) Is it Att. 5 or Please confirm that digital communication ports high range radiation monitors are loops 271- Att. 6?

available in RM-1000 are not used. 274. (2) Pl. confirm that HRRMs (3) For safety-related applications, General are loops 271-EICB (Singh)

Atomics Electronic Systems, Inc. supplies the 274.

RM-1000 module assembly as a Basic (3) TVA to clarify Component. This assembly does contain that GA has a component parts that are Safety-Related commercial Commercial Grade Items (SRCGI). Because dedication these SRCGI components are assembled into program in the delivered Basic Component, they are place and that dedicated to the assembly by virtue of the GA is an acceptance test of the full RM-1000 approved assembly. Safety-related commercial grade 10CFR50, items are dedicated in accordance with App. B General Atomics approved 10 CFR 50 supplier.

Appendix B program. (4) Response acceptable.

(4) The digital communications ports on the safety-related RM-1000 radiation monitors are not used.

302 7.5.2. 7.5.1 09/17/2010 Responder: Tindell 38. Y Open Open-NRC EICB RAI TBD EICB RAI ML102861885 sent to 1 Review ML102861885 DORL Item 208 requested a description of the changes that Attachment 8 contains the requested 50.59 Response is included in Item No. 23 were performed under 10 CFR 50.59 for 16 Unit 1 evaluations and the variable table cross letter dated 10/29/10 NRC to issue See Item 332 PAM variables that were identified in Enclosure 1 Item referencing the variable to the appropriate DCN. formal RAI to TVA EICB (Marcus)

No.6 of the letter dated June 18, 2010 There are two changes to the original table.

(ML101940236). Please identify the specific 10 CFR Variable 9, RCS Pressurizer Level and 10, RCS TVA formal 50.59 documentation that applies to each of these 16 Pressure Wide Range have been changed from response due variables. 50.59 Y to N. The original response showed 10/31/10 these variables as changed under 10 CFR 50.59.

The response was based on the plan to replace all paper recorders in Unit 1. The assumption was that these recorders would be replaced prior to Unit 2 startup. While this may still occur, the recorders have not been replaced at this time.

303 7.5.2. 7.5.1 09/17/2010 Responder: Tindell 39. Y Open Open-NRC EICB RAI TBD EICB RAI ML102861885 sent to 1 Review ML102861885 DORL EICB (Marcus)

Enclosure 1 Item 6 of the letter dated June 18, 2010 Attachment 9 contains the cross reference Response is included in Item No. 24 included a column to indicate the Unit 2 variable between the Unit 2 and Unit 1 variable sources for letter dated 10/29/10 NRC to issue See Item 333 source for each PAM variable and also if the variable the unique WBN Unit 2 variables within the scope formal RAI to TVA was unique to Unit 2. For each variable that was of the Foxboro Spec 200, Common Q PAMS and indicated as unique to Unit 2 and the Unit 2 variable Foxboro I/A changes. TVA formal source is (1) Foxboro Spec 200, (2) Common Q response due PAMS, or (3) Foxboro IA, identify the Unit 1 variable NOTE: An error was identified during preparation 10/31/10

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date source. of this response. Variable 37 CCS Surge Tank Level was incorrectly identified as being within the scope of the Foxboro I/A system in TVA to NRC letter dated June 18, 2010. Variable 37 will be provided by the Foxboro Spec 200 system for Unit 2.

304 7.5.2. 7.5.1 09/17/2010 Responder: Tindell 40. Y Open Open-NRC EICB RAI TBD EICB RAI ML102861885 sent to 1 Review ML102861885 DORL EICB (Marcus)

Enclosure 1 Item 6 of the letter dated June 18, 2010 The source for the Unit 1 variables is the Eagle 21 Response is included in Item No. 25 indicated that the Unit 2 variable source for 14 PAM System. letter dated 10/29/10 NRC to issue variables is Eagle 21. Please confirm that for each of formal RAI to TVA these 14 variables the Unit 1 variable source is also Response is acceptable the Eagle 21. TVA formal response due 10/31/10 305 7.5.2. 7.5.1 09/17/2010 Responder: Tindell 41. Y Open Open-NRC EICB RAI TBD EICB RAI ML102861885 sent to 1 Review ML102861885 DORL EICB (Marcus)

Enclosure 1 Item 6 of the letter dated June 18, 2010 The source for the Unit 1 variables is the Response is included in Item No. 26 indicated that the Unit 2 variable source for 2 PAM Integrated Computer System. letter dated 10/29/10 NRC to issue variables is the Integrated Computer System. Please formal RAI to TVA confirm that for these 2 variables the Unit 1 variable Response is acceptable source was the Unit 1 plant computer system. TVA formal response due 10/31/10 313 7.7.8 7.7.1. EDCR 52408 (installation of AMSAC in Unit 2) states Responder: Ayala 42. Y Open Open-NRC EICB RAI No.18 12 that Design Criteria WB-DC-40-57 needs to be Review ML102910017, modified to reflect AMSAC in Unit 2. (1) The review of WB-DC-40-57 for Unit 2 Response is included in 10/19/10 applicability has been completed and letter dated 10/29/10

1. Has WB-DC-40-57 been completed for Unit 2? If included in Revision 4 of the document. Due 10/31/10.

so, please submit. Attachment 10 contains TVA design criteria Waiting for WB-DC-40-57, Revision 4, Anticipated docketed version

2. If WB-DC-40-57 has not been completed for Unit Transients Without Scram Mitigation System to close item.

2, please give an estimated date of completion Actuation Circuitry (AMSAC).

EICB (Darbali) and submittal.

(2) The revision for Unit 2 is complete with open

3. Please submit WB-DC-40-57 for Unit 1 and items as identified in item (3) below.

identify any changes to the Unit 2 version.

Attachment 10 contains TVA design criteria WB-DC-40-57, Revision 4, Anticipated Transients Without Scram Mitigation System Actuation Circuitry (AMSAC) which is applicable to both WBN Unit 1 and Unit 2. There are 17 open Watts Bar Nuclear Plant Unit 2 Startup Integration Task Equipment List (WITEL) punch list items associated with Revision 4 that require resolution.

A list of the punch list items is contained in Attachment 10.

317 7.5.2. 7.5 TVA has provided a proprietary and a non-proprietary Responder: Temples 43. Y Open Open-NRC RAI No. 27 3 version of Technical Manual for RM-1000 Digital Review ML102980005 Radiation Processor under ML101680582 and i. These documents are applicable to WBN Response is included in 10/26/2010 EICB (Singh)

ML101680587). Unit 2. letter dated 10/29/10 Proposed ii. This was an error in document response is (i) Are these documents applicable to WBN2 as preparation that occurred when acceptable. TVA provided (October 2003 version). attachments were assembled for a to issue and (ii) Why is DCN38993-A attached at the back of previous letter. confirm letter the proprietary version? It is for WBN1 iii. The Technical Manual is not intended to date.

Turbine Governor Control Valve. include equipment requirements. (iii) Staff is looking for

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date (iii) This document does not state the Requirements would be found in the high level requirements Due 10/31/10 requirements for RM-1000 units. Please applicable TVA Specifications for the for RM-1000 monitors. Pl.

provide a document that states the contract. provide appropriate requirements for the RM-1000 radiation documents.

monitors for WBN2. Attachment 11 contains the Material Requisition Specification Revisions 1 and 4 which contain the requested information.

318 7.5.2. 7.5 TVA has provided the following documents for RM- Responder: Temples 44. Y Open Open-NRC RAI No. 28 3 1000 equipment qualification: Review ML102980005 (i) Applicable to WBN Unit 2. 04508905-1QR Note check 04508905-1QR 10/26/2010 (i) Qualification Test Report for RM-1000 Processor is applicable only in regards to the RM-1000, or QR. Staff version is QR Module and Current-To-Frequency Converter with the exception of re-qualification of only. Due 10/31/10 04508905-QR (January 2001) certain RM-1000 equipment differences (ii) Qualification Test Report Supplement, RM-1000 covered in the -1SP report. The Current-to- Response is included in Response Upgrades 04508905-1SP (June 2006) Frequency (I-F) converter module letter dated 10/29/10 acceptable. TVA (iii) Qualification Test Report Supplement, RM-1000 qualifications in the base report and the - to issue letter and Upgrades 04508905-2SP (June 2008) 1SP report are not applicable to the RM- confirm stated EICB (Singh)

(iv) Qualification Test Report Supplement, RM-1000 1000s, and will be used later as references (future) dates Upgrades 04508905-3SP (May 2008) in the WBN Unit 2 specific qualification reports.

Please clarify whether all of these are fully applicable (ii) Applicable to WBN Unit 2.

to WBN2 or are they applicable with exceptions? If (iii) Not applicable to WBN Unit 2 with exceptions, then please clarify what those are. (iv) Not applicable to WBN Unit 2 Supplement 3 was issued one month prior to The 04508905-3SP report was prepared for supplement 2. Please explain the reason for the another TVA plant, as a monitor system-level same. report, where the system included equipment mostly based on the base report equipment items.

These two -2SP and -3SP supplement reports were essentially worked concurrently, but the -

2SP document review/release process resulted in the release time difference.

319 7.5.2. 7.5 TVA provided System Verification Test Results Responder: Temples 45. Y Open Open-NRC RAI No. 29 3 04507007-1TR (July 1999) for Sequoyah to support Review ML102980005 test verification. However, the document states (page See TVA letter to the NRC dated October 21, Response is included in 10/26/2010 v) that it is not applicable for high range monitors with 2010, item 26 (RAI Matrix Item 316) for non- letter dated 10/29/10 an action noted for fixing a problem with the high range applicability of 04507007-1TR. The recorded Due 10/31/10 EICB (Singh)

RM-1000 monitors on page vi. TVA to respond to the anomaly was later resolved through the following clarifications: verification of software version 1.2, reported in Response RM-1000 v1.2 Software Verification Report acceptable. TVA Has the anomaly noted on page vi been resolved for 04508006. to issue letter and the high range monitors? confirm stated The high range verification documents are the (future) dates Provide the high range verification document for Sequoyah RM-1000 v1.1 Software Verification WBN2. Report 04508006 and RM-1000 v1.2 Software Verification Report 04508006.

323 WCAP-13869 revision 1 was previously reviewed Responder: Craig 46. N Open Open-NRC EICB(Gar under WBN Unit 1 SER SSER 13 (Reference 8). Unit Review 2 references revision 2. An analysis of the differences Attachment 12 contains the WCAP 13869 Response is included in g) and their acceptability will be submitted to the NRC by Revision 1 to Revision 2 Change Analysis. letter dated 10/29/10 Due 10/31/10 November 15, 2010 328 7.5.2. 7.5 Provide the model number for the four containment Responder: Temples 47. Y Open Open-NRC RAI No. 30 3 high range area monitors, RM-1000 and identify how Review ML102980005 EICB the software V&V and qualification documents apply to The Containment High Range Radiation Monitors Response is included in 10/26/2010 (Singh) them. If there is no specific model number then how is are model RM-1000. The monitors are uniquely letter dated 10/29/10 Response OK.

it ensured that the correct radiation monitor is received identified by serial numbers which are assigned Awaiting TVA ltter at the site and subsequently installed? when the equipment is assembled. The to close OI.

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date applicability of V&V reports and quality Due 10/31/10 documentation for the RM-1000 model is in accordance with manufacturers approved 10 CFR 50 Appendix B Quality Program and the requirements of the purchase order.

329 7.6.1 7.6.7 Section 7.6.7 of the FSAR (Amendment 100) states Responder: Clark 48. N Open Open-NRC RAI No. 1 EICB (Singh) that, The DMIMS-DX' audio and visual alarm Review ML102980005 capability will remain functional after an The title of FSAR Section 3.10 is Seismic Design Response is included in 10/26/2010 Operating Basis Earthquake (OBE). All of the DMIMS- of Category I Instrumentation and Electrical letter dated 10/29/10 DX' components are qualified Equipment. Since the Loose Part Monitoring Due 10/31/10 for structural integrity during a Safe Shutdown System is not a Category 1 system, it is not Earthquake (SSE) and will not included in the scope of 3.10. FSAR Section TVA to confirm mechanically impact any safety-related equipment. 7.6.7, Loose Parts Monitoring System (LPMS) that the System Description, identifies basic system equipment has TVA to clarify the seismic qualification of the loose seismic design criteria which are consistent with been seismically parts monitoring system and include the appropriate the requirements of TVA Design Criteria, WB-DC- qualified as information in Table 3.10 (or another suitable section) 30-31, Loose Parts Monitoring System. As required and that of the FSAR. identified in FSAR Table 7.1-1, Watts Bar Nuclear TVA reviewed and Plant NRC Regulatory Guide Conformance, the found the report system conforms to Reg. Guide 1.133 as modified acceptable.

by Note 12. Reg. Guide 1.133 identifies the seismic requirements and Note 12 does not contain any exception to the Regulatory Guide seismic requirements.

092 5/20/2010 Responder: Hilmes 1. N Open Open-TVA DORL (Poole) TVA to review Licensee Open Item list and determine This item will close when we are no longer using Continuous review which items are proprietary. this document as a communications tool. as items are added 117 7.1 7.1 6/3/2010 Responder: Hilmes 2. Y Open Open-TVA EICB RAI EICB (Garg)

ML102910008 Does TVA use a single sided or double sided Reactor Protection System (RPS) (comprised of Revised response is Pending FSAR Item#21 methodology for as-found and as-left instrument Reactor Trip (RPS) and Engineered Safety included in letter dated Amendment 102 setpoint values. (RIS2006-7) Features Actuation System (ESFAS)) setpoint 10/29/10 submittal values are monitored by periodic performance of surveillance tests in accordance with Technical Due 10/31/10 Specification requirements. TVA uses double-sided as-found and as-left tolerances for Reactor TVA needs to Trip and ESFAS trip setpoint surveillance tests as address that trip described in FSAR amendment 100. setpoint and allowable value TVA Revised Response: uncertainties are not reduced by For TSTF-493 parameters WBN Unit 2 uses only the reduction double sided correction factors. Attachment 3 factor for the contains the revised FSAR section 7.1.2.1.9 that single sided will be included in FSAR Amendment 102 that reduction factor.

reflects this change. TVA response not acceptable. TVA need to clarify if single sided methodology has been used in calculating trip setpoint and allowable value and if it is used then provide

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date justifications.

274. 8/26/2010 Responder: Clark 3. Y Open Open-TVA RAI No. 6 TVA Letter EICB (Singh) b ML102980005 dated 10/21/10 Loose Parts Monitoring System: TR 3.3 refers to The reference will be changed to FSAR section Response provided in letter Response 10/26/2010 Enclosure 1 section 4.4.6 of the FSAR for description of the loose 7.6.7 Loose Part Monitoring System (LPMS) dated 10/21/10 acceptable. TVA Item No. 12 parts monitoring system. However, this section of the System Description in next revision of the to complete stated FSAR is not available. TVA to check the reference Technical Requirements Manual as shown below: action.

and respond.

1. Watts Bar FSAR, Section 7.6.7, Lose Part Due 10/31/10 Monitoring System.

(Note: Bechtel I&C to submit TRM change package to TVA Licensing.)

287 7.3 7.3-1 8/27/2010 Responder: Elton 4. Y Open Open-TVA ML102390538, EICB (Darbali)

Item No. 1, In Amendment 95 of FSAR section 7.3.2.3 Further Unit 2 FSAR Section 7.3 addresses Engineered Response included in next Due 10/31/10. 9/10/10 and Considerations, the list of signals that would start the Safety Features (ESF) Actuation System. TVA Licensing Formal RAI Waiting for EICB RAI No.17 auxiliary feedwater motor driven and turbine driven AMSAC is non-safety, and thus non-ESF. Response Letter. docketed version ML102910017, pumps was moved to table 7.3-1 item 3, Auxiliary Therefore, it was correct to not include AMSAC to close item. 10/19/10 Feedwater. However, item (6) AMSAC was not when the initiating signals were relocated from included in table 7.3-1. Unit 2 FSAR Section 7.3.2.3 to Table 7.3-1. Expected letter issue date is Please explain this omission or state your commitment 11/5/10 to correct this in a future amendment.

288 7.3 9/2/2010 Responder: McNeil 5. N Open Open-TVA EICB RAI EICB (Garg)

ML102910008 Can we add a section to chapter 7 giving a brief The following new section will be added to the Due TBD Item#67 overview of the Foxboro Spec 200 in Section 7.3? WBN Unit 2 FSAR as part of Amendment 102: TVA committed to adding a description of the TVA should 7.3.1.1.3 Analog Instrumentation Foxboro Spec 200 include the list of hardware at the 10/12 NRC all the functions The miscellaneous safety-related analog process Public Meeting. where Spec 200 is control and indication loops are a set of discrete used and discuss analog modules that have been tested and differences qualified for use in safety related systems. The between unit 1 various components have been qualified to IEEE and unit2. This Standard 323-1983 (R-1996) IEEE Standard for discussion should Qualifying Class IE Equipment for Nuclear Power also include loop Generating Stations, IEEE Standard 344-1987 which are (R-1993) IEEE Standard Recommended currently used for Practices for Seismic Qualification of Class IE Unit 1 operation If Equipment for Nuclear Power Generating Spec 200 Stations, and IEEE Standard 384-1984 (R-1992) components have IEEE Standard Criteria for Independence of also been Class IE Equipment and Circuits. The modules qualified to RG are arranged in instrument loops to provide the 1.209, it should be safety function as described in the TVA licensing stated and if not basis for the Emergency Gas Treatment, Auxiliary why not.

Feedwater, and Safety-Related Balance of Plant systems. Seismic qualification of the analog modules and racks is addressed in FSAR Section 3.10.

The components are physically arranged in the racks to meet the requirements of IEEE-279 and Watts Bar Design Criteria WB-DC-30-4, Separation/Isolation.

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date Two IE analog modules are used to isolate IE to Non-IE signals. These are the Contact Output Isolator and Voltage-to-Current Converter, both of which have the Input and Output signals isolated.

294 7.3 7.3.1. 9/9/2010 Responder: Elton 6. Y Open Open-TVA ML102390538, EICB (Darbali) 1.1 Item No. 2, In Amendment 95 of FSAR section 7.3.1.1.1 Function The information provided in Unit 2 FSAR Section Response included in next Due 10/31/10. 9/10/10 Initiation, item (13) was arranged into paragraph form 7.3.1.1 is not meant to describe the specific TVA Licensing Formal RAI Waiting for from what used to be a listing of items (a), (b) and (c). function of each item in detail; the descriptions Response Letter. docketed version provided are a summary listing. The omitted to close item.

The second bullet under item (c) was omitted in the information provided information beyond the level new paragraph. of detail provided for the other items in this Expected letter section. issue date is Initiates Phase B containment isolation of the 11/5/10 following: The level of detail contained in item (13) of Unit 2

• Closure of the main steam isolation valves (MSIV) FSAR Section 7.3.1.1 is consistent with that to limit reactor coolant system cooldown for breaks contained in item 13. of Unit 1 UFSAR Section downstream of the MSIVs. 7.3.1.1.

Please explain this omission or state your commitment to correct this in a future amendment.

295 7.3 7.3.1. 9/9/2010 Responder: Elton 7. Y Open Open-TVA ML102390538, EICB (Darbali) 1.2 Item No. 3, In Amendment 95 of FSAR section 7.3.1.1.2 Process The level of detail is sufficient for this section Response included in next Due 10/31/10. 9/10/10 Protection Circuitry, item (3), references to sections without the two removed references to other TVA Licensing Formal RAI Waiting for 7.6 and 7.7 were removed. Sections. Response Letter. docketed version to close item.

Please explain the reason for removal. The level of detail contained in item (3) of Unit 2 FSAR Section 7.3.1.1.2 is consistent with that Expected letter contained in item 3. of Unit 1 UFSAR Section issue date is 7.3.1.1.2. 11/5/10 296 7.3 7.3.1. 9/9/2010 Responder: Elton 8. Y Open Open-TVA ML102390538, EICB (Darbali) 2.1 Item No. 4, In Amendment 95 of FSAR section 7.3.1.2.1 The information provided in Unit 2 FSAR Section Response included in next Due 10/31/10. 9/10/10 Generating Station Conditions, the new paragraph 7.3.1.2.1 is not meant to provide detailed TVA Licensing Formal RAI Waiting for was arranged from what used to be a listing of items information describing what each condition Response Letter. docketed version (1.b), (1.c), and (2.b), leaving out items (1.a) and (2.a).

includes. Deletion of the breaks described in to close item.

Even if the paragraph contains the word include, theItems (1.a) and (2.a) is justified because they are breaks in items (1.a) and (2.a) should be listed. encompassed by the operating conditions primary Expected letter system breaks and secondary system breaks, issue date is Please explain this omission or state your commitment respectively. 11/5/10 to correct this in a future amendment.

The level of detail contained in Unit 2 FSAR Section 7.3.1.2.1 is consistent with that contained in Unit 1 UFSAR Section 7.3.1.2.1.

297 7.3 7.3.1. 9/9/2010 Responder: Elton 9. Y Open Open-TVA ML102390538, EICB (Darbali) 2.2 Item No. 5, In Amendment 95 of FSAR section 7.3.1.2.2 Unit 2 FSAR Section 7.3 addresses Engineered Response included in next Due 10/31/10. 9/10/10 Generating Station Variables, the following sentence Safety Features (ESF) Actuation System. Post TVA Licensing Formal RAI Waiting for was erased: accident monitoring is not an ESF; thus, a Response Letter. docketed version reference to it is not required in 7.3.1.2.2. to close item.

Post accident monitoring requirements and variables are given in Tables 7.5-1 and 7.5-2. Expected letter issue date is Please explain the reason for removal. 11/5/10 298 7.3 XX B (D 9/9/2010 Responder: Clark 10. Y Open Open-TVA ML102390538, Item No. 6, ar

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date IE Bulletin 80-06 calls for review of engineered safety A review of the schematic diagrams for the Response included in next Due 10/31/10. 9/10/10 features with the objective of ensuring that no device WBN Unit 2 valves listed in SER 3 found the TVA Licensing Formal RAI Waiting for will change position solely because of the reset following: Response Letter. docketed version action. to close item.

(1) For feedwater isolation valves (FCV-3-33, In Supplement 3 of NUREG-0847, section 7.3.5, the FCV-3-47, FCV-3-87, and FCV-3-100), Expected letter staff approved the design modifications proposed by feedwater check valve bypass valves (FCV- issue date is the applicant that would allow certain devices to 3-185, FCV-3-186, FCV-3-187, and FCV 11/5/10 remain unchanged upon an ESF reset. The staff also 188), and upper tap main feedwater found acceptable the applicants justification for some isolation valves (FCV 3-236, FCV-3-239, safety-related equipment that does not remain in its FCV-3-242, and FCV-3-245), the Unit 2 emergency mode after an ESF reset. equivalent reset switch and a relay have been added for each steam generator loop.

Please confirm whether or not the equipment that was When the engineered safety feature (ESF) determined in NUREG-0847 and its supplements to signal is reset, the individual valve will not remain unchanged upon an ESF reset will still remain change state until both the loop and the unchanged in Unit 2. ESF train reset switches have been reset.

(2) For steam generator blowdown isolation valves (FCV-43-54D, FCV-43-56D, FCV-43-59D, FCV-43-63D, FCV-43-55, FCV 58, FCV-43-61, and FCV-43-64), the ESF signal is sealed in by means of a seal in relay. The individual valve will not change state until a hand switch in the sample room is used to reopen the individual valve.

(3) For residual heat removal heat exchanger outlet flow control valves (FCV-74-16 and FCV-74-28), the ESF signal is sealed in by the limit switch. The Unit 2 equivalent reset switch has been added at the control room control board. When the ESF signal is reset, the individual valve will not change state until the individual reset switch has been reset.

306 7.1 7.1 FSAR amendment 100, page 7.1-12 provides the Responder: Hilmes 11. Y Open Open-TVA EICB RAI definition of Allowable value which is not consistent ML102910008 EICB (Garg) with TSTF-493 as allowable value is the value beyond The FSAR Allowable Value definition will be Response is included in Due 10/31/10 Item#69 which instrument channel is declared inoperable. revised to be consistent with the TSTF-493 in letter dated 10/29/10 FSAR Amendment 102. Attachment 3 contains Pending FSAR the revised FSAR section 7.1.2.1.9 that will be Amendment 102 included in FSAR Amendment 102 that reflects submittal this change.

307 7.1 7.1 (1) FSAR amendment 100, Section 7.1, page 7.1-12, Responder: Hilmes 12. Y Open Open-TVA EICB RAI definition of Acceptable as found tolerance is not in ML102910008 accordance with TSTF-493 as AAF is the limit beyond (1) The Acceptable As Found (AAF) definition will Response is included in Due 10/31/10 Item#70 which the instrument channel is degraded but may be be revised to be consistent with TSTF-493 in letter dated 10/29/10 operable and its operability must be evaluated. (2) FSAR Amendment 102. Attachment 3 Pending FSAR EICB (Garg)

Also it states that AAF is based on measurable contains the revised FSAR section 7.1.2.1.9 Amendment 102 instrument channel uncertainties, such as drift, that will be included in FSAR Amendment 102 submittal expected during the surveillance interval. These that reflects this change.

wording should be revised to agree with the wording given in RIS2006-17 as these wordings are very (2) Additional detail on the AAF methodology vague. (3) Also it states that RPS functions use double was provided in sections 7.1.2.1.9.1, sided tolerance limits for the AAF. Since AAF is a Westinghouse Setpoint Methodology, and band it will always be double sided and therefore, this 7.1.2.1.9.2, TVA Setpoint Methodology.

clarification does not mean anything and it clouds the These sections will be revised to clarify the

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date issue. AAF calculations in FSAR Amendment 102.

Attachment 3 contains the revised FSAR section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.

(3) The statement about double sided limits addresses a TSTF requirement that the AAF tolerance consider errors in both the conservative and non-conservative directions and ensures that an as-found value which exceeds these limits, even in the conservative direction (away from the safety limit), will be evaluated. Attachment 3 contains the revised FSAR section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.

308 7.1 7.1 (1) FSAR Amendment 100, Section 7.1, page 7.1-13, Responder: Hilmes 13. Y Open Open-TVA EICB RAI definition of Acceptable as left tolerance is not in ML102910008 accordance with TSTF-493 as it states that this may (1) The statement about using calibration history Response is included in Due 10/31/10 Item#71 take calibration history into consideration. This is very to determine the Acceptable As Left (AAL) will letter dated 10/29/10 EICB (Garg) vague and ambiguous. (2) Also it states that RPS be deleted in FSAR Amendment 102. Pending FSAR functions use double sided tolerance limits. Since ALF Attachment 3 contains the revised FSAR Amendment 102 is a band it will always be double sided and therefore, section 7.1.2.1.9 that will be included in FSAR submittal this clarification does not mean anything and clouds Amendment 102 that reflects this change.

the issue.

(2) See response to letter item 27 (NRC Matrix Item 307).

309 7.1 7.1.2. (1) FSAR amendment 100, Page 7.1-14, Responder: Hilmes 14. Y Open Open-TVA EICB RAI 1.9.1 Westinghouse setpoint methodology, states that AAF ML102910008 is the algebraic sum of the .. This is not acceptable. (1) The AAF calculation for Westinghouse Response is included in Due 10/31/10 Item#72 As algebraic sum is non conservative compared to the setpoint methodology calculations in TI-28 for letter dated 10/29/10 EICB (Garg)

SRSS method and will mask the operability of the TSTF-493 will be revised to use the Square Pending FSAR instrument channel and therefore, it is not acceptable Root Sum of the Squares (SRSS) method. Amendment 102 to the staff. (2) It also make the statement that ALT submittal may take calibration history into consideration which is (2) AAF definition will be revised to be consistent vague and ambiguous. with TSTF-493 as discussed with the NRC Staff, in FSAR Amendment 102. Attachment 3 contains the revised FSAR Amendment 102 Change Markup that reflects this change.

310 7.1 7.1.2. (1) FSAR amendment 100, Page 7.1-14, TVA setpoint Responder: Hilmes 15. Y Open Open-TVA EICB RAI 1.9.2 methodology, states that for AAF .and other ML102910008 measurable uncertainties as appropriate (i.e., those (1) The statement will be revised to say those Response is included in Due 10/31/10 Item#73 present during calibration.) should be changed to present during the surveillance interval in letter dated 10/29/10 present during normal operation (2) Also on page FSAR Amendment 102. Attachment 3 Pending FSAR 7.1-15, states that ALT may take calibration history contains the revised FSAR section 7.1.2.1.9 Amendment 102 EICB (Garg) into consideration which is vague and ambiguous. that will be included in FSAR Amendment 102 submittal that reflects this change.

(2) The statement about using calibration history to determine the AAL will be deleted in FSAR Amendment 102. Attachment 3 contains the revised FSAR section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.

311 7.1 7.1 EIC Both Westinghouse and TVA setpoint methodology do Responder: Hilmes 16. Y Open Open-TVA EICB RAI B

(Gar not have any discussion on single sided calculation. ML102910008 g)

Please confirm that single sided calculation has not A statement that single-sided corrections are not Response is included in Item#74

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date been used for all setpoints with TSTF-493 and provide used for TSTF-493 setpoints will be included in letter dated 10/29/10 Due 10/31/10 a statement to that effect in the FSAR. FSAR Amendment 102. Attachment 3 contains Pending FSAR the revised FSAR section 7.1.2.1.9 that will be Amendment 102 included in FSAR Amendment 102 that reflects submittal this change.

326 TVA uses double-sided methodology for as-found and Responder: Webb 17. Y Open October 22, 2010 Open-TVA as-left Reactor Trip and ESFAS instrument setpoint EICB(Garg) values. The FSAR will be revised in a future Attachment 3 contains the revised FSAR section Response is included in Due 10/31/10 amendment to reflect this methodology 7.1.2.1.9 that will be included in FSAR letter dated 10/29/10 Pending FSAR Amendment 102 that reflects this change. Amendment 102 submittal 327 Attachment 36 contains Foxboro proprietary drawings Responder: Webber 18. N Open Open-TVA DORL 08F802403-SC-2001 sheets 1 through 6. An affidavit (Poole) for withholding and non-proprietary versions of the Non-Prop drawings are available for submittal. Due 1/31/11 drawings will be submitted by January 31, 2011.

330 7.3 7.3 Related to Item 298 Responder: Hilmes/Faulkner 19. N Open Open-TVA EICB RAI No.20 ML102910017, IE Bulletin 80-06 calls for review of engineered safety The original response to IE Bulletin 80-06 for both Due TBD 10/19/10 features with the objective of ensuring that no device WBN Unit 1 and 2 was provided on TVA letter to will change position solely because of the reset the NRC dated March 11, 1982 (ML073530129) action. (Reference 4). Subsequent design changes have impacted the original response such that some In Supplement 3 of NUREG-0847, section 7.3.5, the equipment that originally changed state no longer staff approved the design modifications proposed by does so and some equipment has been deleted.

the applicant that would allow certain devices to The following is the updated list of equipment remain unchanged upon an ESF reset. The staff also from the letter that changes state on ESF reset:

found acceptable the applicants justification for some safety-related equipment that does not 1. Unit 1 and 2 Equipment (prefix 1- (Unit 1) or remain in its emergency mode after an ESF reset. 2- (Unit 2)

Please list for Unit 1 and Unit 2 the safety-related a. Auxiliary Feedwater Pump Turbine equipment that does not remain in its emergency Speed Control Valve, FCV-1-52 mode after an ESF reset.

b. Auxiliary Feedwater (AFW) Level EICB (Darbali)

Control Valves as listed below:

i. LCV-3-172 - SG3 - Level Control Valve ii. LCV-3-173 - SG2 - Level Control Valve iii. LCV-3-174 - SG1 - Level Control Valve iv. LCV-3-175 - SG4 - Level Control Valve

v. LIC-3-172 - SG3 - Level Indicating Controller vi. LIC-3-173 - SG2 - Level Indicating Controller vii. LIC-3-174 - SG1 - Level Indicating Controller viii. LIC-3-175 - SG4 - Level Indicating Controller ix. LCV-3-148 - SG3 - Level Valve

x. LCV-3-156 - SG2 - Level Valve xi. LCV-3-164 - SG1 - Level Valve xii. LCV-3-171 - SG4 - Level Valve xiii. LCV-3-148A - SG3 - Level Bypass

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date Control Valve xiv. LCV-3-156A - SG2 - Level Bypass Control Valve xv. LCV-3-164A - SG1 - Level Bypass Control Valve xvi. LCV-3-171A - SG4 - Level Bypass Control Valve xvii. LIC-3-148 - SG3 - Controller xviii. LIC-3-156 - SG2 - Controller xix. LIC-3-164 - SG1 - Controller xx. LIC-3-171 - SG4 - Controller

c. Lower and Upper Containment Cooler Fans and Control Rod Drive Mechanism Cooler Fan

d. Penetration Room Cooler Fans Elevations 737, 692 and 713

e. Pipe Chase Cooler Fans

2. Common Equipment

a. Shutdown Board Room A Pressurizing Fans

b. Control Building Ventilation Dampers as listed below:

i. 0-FCO-31 Spreading Room Supply Fan Damper ii. 0-FCO-31-10 - Spreading Room Supply Fan Damper iii. 0-FCO-31-16 - Toilet a Locker Room Exhaust Fan Exhaust Damper iv. 0-FCO-31-17 - Toilet a Locker Room Exhaust Fan Exhaust Damper

v. 0-FCO-31 Main Control Room Isolation Damper vi. 0-FCO-31 Main Control Room Isolation Damper vii. 0-FCO-31-36 - Spreading Room Fresh Air Supply Damper viii. 0-FCO-31-37 - Spreading Room Fresh Air Supply Damper

c. Cask Loading Exhaust Dampers as listed

i. 0-FCO-30-122 - Cask Loading Area Exhaust Damper ii. 0-FCO-30-123 -Cask Loading Area Exhaust Damper

d. Auxiliary Building General Supply Exhaust Fans Elevation 737

e. CCW and AFT Pump Space Cooler Fans

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date

f. Spent Fuel Pit Pumps Space Coolers

g. EGTS Room Coolers

h. Turbine Driven AFW and Boric Acid Space Coolers 334 7 7 FSAR Figure 7A-3 Mechanical Flow and Control Responder: TBD 20. N Open Open-TVA RAI not N/A RAI not required because the EICB Diagram Symbols doesnt show the symbols for the required. figure is not part of any SE (Darbal first column of valves. Please correct this in a future Due TBD section.

i)

FSAR amendment.

335 7.6.1 7.6.7 LPMS: Reference to OI-331, sub item 2. Responder: WEC 21. N Open Open-TVA Provide analysis, test, or combined analysis and test Due TBD EICB (Singh) for normal operating radiation, temperature, and humidity environment per regulatory position C.1.g of RG 1.133. As an alternate TVA may confirm that the required equipment has been qualified for the environments stated in RG 1.133, position C.1.g and that TVA has reviewed the test report and found it acceptable.

041 7.5.2 7.5.1 2/19/2010 Responder: WEC 1. N Open Open-TVA/WEC NRC Meeting TVA Letter See also Open Item Nos. 226 &

EICB (Carte)

Summary NRC dated 6/18/10 270.

Please provide the following Westinghouse Items (1) and (2) were docketed by TVA letter Partial Response is included Due 12/7/10 Meeting documents: dated April 8, 2010. in letter dated 10/5/10. Summary TVA Letter (1) WNA-DS-01617-WBT Rev. 1, "PAMS System The SysRS and SRS TVA to docket ML093560019, dated 10/5/10 Requirements Specification" Item (3) will be addressed by Revision 2 of the incorporate requirements information Item No. 11 (2) WNA-DS-01667-WBT Rev. 0, "PAMS System Licensing Technical Report. Due 12/3/10 from many other documents indentified in Design Specification" by reference. ISG6.

(3) WNA-CD-00018-GEN Rev. 3, "CGD for QNX Item (4) will be addressed by Westinghouse version 4.5g" developing a WBN2 Specific Test Plan to NNC 8/25/10: (3) An earlier Please provide the following Westinghouse documents compensate for the fact that the NRC version of this report was or pointers to where the material was reviewed and disapproved WNA-PT-00058-GEN during the docketed for the Common Q approved in the CQ TR or SPM: original Common Q review. Due 12/7/10 topical report; therefore, (4) WNA-PT-00058-GEN Rev. 0, "Testing Process for there should be no problem Common Q Safety systems" Item (5) Procedures that are listed in the SPM to docket this version. (4)

(5) WNA-TP-00357-GEN Rev. 4, "Element Software compliance table in the Licensing Technical Per ML091560352, the Test Procedure" Report revision 1 supersede that test procedure testing process document WNA-TP-00357-GEN.Due 10/22/10 does not address the test plan requirements of the SPM. Please provide a test plan that implements the requirements of the SPM.

067 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the Responder: WEC Date: 5/25/10 2. N Open Open-TVA/WEC N/A - No TVA Letter EICB (Carte) target submittal date for the "Commercial Grade question was dated 6/18/10 Dedication Instructions for AI687, AI688, Upgraded PC The following status is from the revised WB2 This item is addressed in Due 12/3/10 asked. Item node box and flat panels." was September 28, 2010. Common Q PAMS ISG-6 Compliance Matrix Rev. 2 of the Licensing was opened to submitted in response to Item 43: Technical Report track comm8ittment

a. AI687, AI688 - Scheduled for September 28, made by 2010 applicant.

b. Upgraded PC node box and flat panel displays

- Per Westinghouse letter WBT-D-2024 (Reference 7), these items are available for audit at the Westinghouse Rockville office.

c. Power supplies - Per Westinghouse letter

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date WBT-D-2035 (Reference 12), these items are available for audit at the Westinghouse Rockville office.

To be addressed during 9/20-9/21 audit 068 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the Responder: WEC Date: 5/25/10 3. N Open Open-TVA/WEC N/A - No TVA Letter EICB (Carte) target submittal date for the "Summary Report on question was dated 6/18/10 acceptance of AI687, AI688, Upgraded PC node box, The following status is from the revised WB2 This item is addressed in Due 12/3/10 asked. Item flat panels, and power supplies." was September 28, Common Q PAMS ISG-6 Compliance Matrix Rev. 2 of the Licensing was opened to 2010. submitted in response to Item 43: Technical Report track comm8ittment

a. AI687, AI688 - Scheduled for September 28, made by 2010 applicant.

b. Upgraded PC node box - Per Westinghouse letter WBT-D-2024 (Reference 7), this item is available for audit at the Westinghouse Rockville office.

c. Flat panel displays - Per Westinghouse letter WBT-D-2024 (Reference 7), this item is available for audit at the Westinghouse Rockville office.

d. Power supplies - Per Westinghouse letter WBT-D-2035 (Reference 12), these items are available for audit at the Westinghouse Rockville office.

To be addressed during 9/20-9/21 audit 069 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the Responder: WEC Date: 5/25/10 4. N Open Open-TVA/WEC N/A - No N/A EICB (Carte) target submittal date for the "Watts Bar 2 PAMS question was Specific FAT Report" was October 2010. Awaiting for document to be Due 2/18/11 asked. Item docketed by TVA. was opened to track comm8ittment made by applicant.

070 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the Responder: WEC Date: 5/25/10 5. N Open Open-TVA/WEC N/A - No TVA Letter EICB (Carte) target submittal date for the "Concept and Definition question was dated 6/18/10 Phase V&V Report" was March 31, 2010. Per Westinghouse letter WBT-D-1961, Partial Response is included Due 12/21/10 asked. Item (Reference 8) this document is available for audit in letter dated 10/5/10. was opened to TVA Letter at the Westinghouse Rockville office. track dated 8/20/10 Regulations require that the comm8ittment WNA-VR- 00283-WBT, Rev 0 was submitted on NRC review be based on made by TVA Letter TVA letter to the NRC dated August 20, 2010 docketed material. Awaiting applicant. dated 10/5/10 (Reference 7). for document to be docketed by TVA.

The submitted V&V did not address the Requirements Traceability Matrix and did not NNC 8/25/10:

summarize anomalies. At the September 15th Requirements Phase SVVR public meeting, Westinghouse agreed to include provided by TVA letter dated the Concept and Definitions Phase Requirements 8/20/10.

Traceability Matrix (RTM) in the next IV&V report along with partial Design Phase updates to the RTM.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date TVA Revised Response:

TVA submitted WNA-VR- 00283-WBT, Rev 0 to NRC in letter dated August 20, 2010 (Reference 6).

The next Independent Verification and Validation (IV&V) report will include the Design Phase Requirements Traceability Matrix. The Design Phase IV&V Report will be submitted to NRC by February 11, 2011.

071 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the Responder: WEC Date: 5/25/10 6. N Open Open-TVA/WEC N/A - No N/A EICB (Carte) target submittal date for the "Design Phase V&V question was Report" was July 30, 2010. Awaiting for document to be Due 12/21/10 asked. Item docketed by TVA. was opened to track commitment made by applicant.

072 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the Responder: WEC Date: 5/25/10 7. N Open Open-TVA/WEC N/A - No N/A EICB (Carte) target submittal date for the "Implementation Phase question was V&V Report" was September 30, 2010. Awaiting for document to be Due 12/21/10 asked. Item docketed by TVA. was opened to track commitment made by applicant.

073 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the Responder: WEC Date: 5/25/10 8. N Open Open-TVA/WEC N/A - No N/A EICB (Carte) target submittal date for the "Integration Phase V&V question was Report" was October 29, 2010. Awaiting for document to be Due 12/31/10 asked. Item docketed by TVA. was opened to track commitment made by applicant.

074 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the Responder: WEC Date: 5/25/10 9. N Open Open-TVA/WEC N/A - No N/A EICB (Carte) target submittal date for the "Final V&V Report" was question was November 30, 2010. TVA to provide due date. Due asked. Item was opened to track commitment made by applicant.

075 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the Responder: WEC Date: 5/25/10 10. N Open Open-TVA/WEC N/A - No N/A EICB (Carte) target submittal date for the "Watts Bar 2 PAMS question was Specific FAT Procedure" was September 30, 2010. Awaiting for document to be Due 11/24/20 asked. Item docketed by TVA. was opened to track commitment made by applicant.

081 7.5.2 7.5.1 5/6/2010 Responder: Merten/WEC 11. N Open Open-TVA/WEC EICB RAI TVA Letter EICB (Carte)

ML102910002 dated 6/18/10 The PAMS Licensing Technical Report (WNA-LI- The codes and standards documents listed in ML101600092 Item No.1: Due 12/31/10 Item No. 9 00058-WBT Rev. 0, Dated April 2010), in Section 7, Section 7 of the Common Q PAMS Licensing There are three sets of lists codes and standards applicable to the Common Q Technical Report are the documents that the regulatory criteria that relate TVA to provide PAMS. This list contains references to old revisions of Common Q platform was licensed to when the to a Common Q application requested several regulatory documents, for example: NRC approved the original topical report and (e.g. WBN2 PAMS): information.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date (1) RG 1.29 - September 1978 vs. March 2007 issued the approved SER. The WBN Unit 2 (a) Common Q platform (2) RG 1.53 - June 1973 vs. November 2003 Common Q PAMS is designed in accordance with components - Common Q (a) IEEE 379-1994 vs. -2000 the approved Common Q topical report and TR (3) RG 1.75 - September 1975 vs. February 2005 approved SER and the codes and standards on (b) Application Development (a) IEEE 384-1992 vs. -1992 which the SER was based. Since the current Processes - Common Q (4) RG 1.100 - June 1988 vs. September 2009 versions referenced are not applicable to WBN SPM (a) IEEE 344-1987 vs. -2004 Unit 2, there is no basis for a comparison review. (c) Application Specific -

(5) RG 1.152 - January 1996 vs. January 2006 current regulatory criteria (a) IEEE 7-4.33.2-1993 vs. -2003 Bechtel to develop a matrix and work with The Common Q Topical (6) RG 1.168 - September 1997 vs. February 2004 Westinghouse to provide justification. Report and associated (a) IEEE 1012-1986 vs. -1998 appendices primarily (b) IEEE 1028-1988 vs. -1997 addressed (a) and (b). The (7) IEEE 279-1991 vs. 603-1991 Common Q SER states:

(8) IEEE 323-1983 vs. -1974 (RG 1.89 Rev. 1 June 1984 endorses 323-1974) Appendix 1, Post However, LIC-110, "Watts Bar Unit 2 License Accident Monitoring Application Review," states: "Design features and Systems, provides the administrative programs that are unique to Unit 2 functional requirements and should then be reviewed in accordance with the conceptual design approach current staff positions." Please identify all differences for upgrading an existing between the versions referenced and the current staff PAMS based on Common Q positions. Please provide a justification for the components (page 58, acceptability PAMS with respect to these differences. Section 4.4.1.1, Description)On the basis of the above review, the staff concludes that Appendix 1 does not contain sufficient information to establish the generic acceptability of the proposed PAMS design (page 56, Section 4.4.1.3, PAMS Evaluation)

The NRC did not approve the proposed PAMS design.

Section 6, References, and Section 7, Codes and Standards Applicable to the Common Q PAMS, of the PAMS Licensing Technical Report contain items that are not the current regulatory criteria.

Please provide an explanation of how the WBN2 PAMS conforms with the application specific regulatory criteria applicable to the WBN2 PAMS design.

For example IEEE Std. 603-1991 Clause 5.6.3, Independence Between Safety Systems and Other Systems, and Clause 6.3, Interaction Between the Sense and Command Features and Other

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date Systems, contain application specific requirements that must be addressed by a PAMS system.

Awaiting TVA Response.

082 7.5.2 7.5.1 5/6/2010 Responder: WEC Date: 12. N Open Open-TVA/WEC EICB RAI TVA Letter EICB (Carte) 6/18/10 ML102910002 dated 7/30/10 The PAMS Licensing Technical Report (WNA-LI- Regulations require that the Revision 1, Due Item No. 10 00058-WBT Rev. 0, Dated April 2010), in Section 2.3, These components can be found in the Summary NRC review be based on 10/22/10 lists hardware/software changes to the Common Q Qualification Report Of Hardware Testing For docketed material. Awaiting PAMS previously reviewed by the NRC. However the Common Q Applications, 00000-ICE-37764, Rev for document to be docketed Common Q ISG-6 Compliance Matrix does not contain 3 and by TVA.

activities that address qualification of all changes TWICE Qualification Status Report, WNAQR-specifically: 00011-SSP Per Westinghouse letter WBT-D- NNC 8/9/10: per telephone 2024, (Reference __) dated June 9, 2010, these conversation on 8/5/10, it is documents are available for audit at the not clear how Westinghouse Westinghouse Rockville Office. Commercial Grade Dedication Plans and TVA provided information by letter dated July 30, Reports for Digital I&C.

2010 (ML102160349) - See Enclosure 1 Item No. Westinghouse agree to

7. present to the NRC in a public meeting on August Revision 1 of the Licensing Technical Report 17, 2010, and explanation of provides additional detail on the platform specific how their system addresses to WBN2 and references to the evaluation regulatory criteria for both documentation. commercial grade dedication and equipment qualification.

NNC 8/25/10: In the August 17, 2010 public meeting Westinghouse stated that the CDI were the plans. The NRC requested that the plans and associated reports be docketed.

085 7.5.2 7.5.1 5/6/2010 Responder: WEC 13. N Open Open-TVA/WEC EICB RAI EICB (Carte)

ML102910002 Please provide a detailed description of the PAMS Is the WEC ISG4 evaluation inadequate? A response will be provided Due 11/24/10 Item No. 13 MTP data link to the plant computer. This description by 10/31/10 should identify all equipment (model & version) and Operation of the MTP as a barrier device. MTP Hardware is in describe the functions that each piece of equipment Fails as a barrier device. Describe what prevents NNC 8/11/10: Design Rev. 1 of the performs. This description should be of sufficient a MTP failure from propagating to the AC160? information should be Licensing detail for the NRC to independently evaluate the available now. By letter Technical Report statements made in WNA-LI-00058-WBT Rev. 0, Node loss on the bus? Bus loss? dated July 30, 2010 due 10/22.

Section 5.3. (ML102160349) TVA stated Revise the ISG4 section of the Licensing that the MTP was connected NNC 8/25/10:

Technical Report (Rev. 2) to provide a more to a Red Hat Linux Server Disagree with detailed description of the MTP as a barrier (see Enclosure 1, Item No. path forward input device. 14 part b.). It is presumed by TVA above.

that this server is not safety- An explanation is related. IEEE 603-1991 about the design Clause 5.6.3(1) states, is needed.

"Isolation devices used to affect a safety system FAT test boundary shall be classified procedure to

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date as part of the safety include data system." storm testing of the MTP Please describe how the interface due MTP serves as the isolation 11/24/10 device.

086 7.5.2 7.5.1 5/6/2010 Responder: WEC Date: 5/24/10 14. N Open Open-TVA/WEC EICB RAI TVA Letter EICB (Carte)

ML102910002 dated 6/18/10 The PAMS Licensing Technical Report (WNA-LI- The regulatory documents listed in the Common TVA to address with item Due 12/31/10 Item No. 14 00058-WBT Rev. 0, Dated April 2010), in Section 6, Q PAMS Licensing Technical Report are the OI 81.

lists references applicable to the Common Q PAMS. documents that the Common Q platform was This list contains references to old revisions of several licensed to when the NRC approved the original regulatory documents, for example: topical report and issued the approved SER. The (1) DI&C-ISG04 - Rev. 0 (ML072540138) vs. Rev. 1 WBN Unit 2 Common Q PAMS is designed in (ML083310185) accordance with the approved Common Q topical However, LIC-110, "Watts Bar Unit 2 License report and approved SER and the regulatory Application Review," states: "Design features and documents on which the SER was based. Since administrative programs that are unique to Unit 2 the current versions referenced are not applicable should then be reviewed in accordance with the to WBN Unit 2, there is no basis for a comparison current staff positions." Please identify all differences review.

between the versions referenced and the current staff positions. Please provide a justification for the Rev 0 of the Licensing Technical Report acceptability PAMS with respect to these differences. references Rev. 1 of ISG4 138 By letter dated February 3, 2010, Westinghouse Responder: WEC 15. N Open Open-TVA/WEC ML101650255, EICB (Carte) informed TVA that certain PAMS documentation has Item No. 2 been completed. This item is used to track all Commercial TVA agreed to include a To be addressed Grade Dedication issues. description of the generic by Rev. 2 of the (a) The draft ISG6 states that a commercial grade Westinghouse hardware Licensing dedication plan should be provided with an application commercial grade Technical Report for a Tier 2 review. due 12/3.

dedication process in the By letter dated February 5, 2010, TVA stated that the PAMS licensing technical Due 12/3/10 commercial grade dedication plan was included in the report. (see Common Q Topical Report Section 11, Commercial ML102920031 Item No 1)

Grade Dedication Program. Section 11 includes a description of the Common Q Commercial Grade TVA agreed to include (in Dedication Program, and states: A detailed review the PAMS licensing plan is developed for each Common Q hardware or technical report) an software component that requires commercial grade evaluation of WBN2 dedication. critical characteristics for commercial Please provide the commercial grade dedication plans for each Common Q hardware or software component Westinghouse hardware that has not been previously reviewed and approved components against the by the NRC. generic critical characteristics. (see (b) The draft ISG6 states that a commercial grade ML102920031 Item No 2) dedication report should be provided within 12 months of requested approval for a Tier 2 review. TVA agreed to include a description of the generic (i) Please provide 00000-ICE-37722 Rev. 0, Westinghouse software Commercial Grade Dedication Report for the QNX commercial grade Operating System for Common Q Applications.

dedication process in the (ii) Please provide WNA-CD-00018-GEN Rev. 3, PAMS licensing technical Commercial Dedication Report for QNX 4.25G for report. (see Common Q Applications. ML102920031 Item No 3)

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date TVA agreed to include (in the PAMS licensing technical report) an evaluation of WBN2 critical characteristics for commercial software components against the generic critical characteristics. (see ML102920031 Item No 4) 142 The applicable regulatory guidance for reviewing the Responder: WEC 16. N Open Open-TVA/WEC ML101650255, WBN2 PAMS System EICB (Carte)

WBN2 PAMS SysRS would be IEEE 830 as endorsed Item No. 6 Requirements Specification by Regulatory Guide 1.172 and BTP 7-14 Section This item is used to track all traceability TVA/Westinghouse To be addressed B.3.3.1, Requirements Activities - Software issues with the Software Requirements agreed to include the by Revision of TVA docketed WNA-DS-01617-Requirements Specifications. IEEE 830-1994 Section Specification (SRS). V&V evaluation of their the RTM, SRS, WBT Rev. 1, RRAS Watts Bar 2 4.3.8, Traceable, states: A [requirements reusable software SysRS, and NSSS Completion Program I&C specification] is traceable of the origin of each of its At the September 15 public meeting in Rockville, SysDS. Projects Post Accident element development requirements is clear the following actions were agreed to. These Monitoring System- System items address the traceability concerns with the process in the V&V Due 12/31/10. Requirements Specification,

1. How did TVA ensure the traceability of each Software Requirements Specification. design phase summary dated December 2009.

requirement in the WBN2 PAMS SysRS. report. This evaluation

1. Westinghouse will perform completed a would include an

2. Explain the source(s) of the requirements present review of the Requirements Traceability evaluation against the in the Post Accident Monitoring Systems Software Matrix(RT), using the issues identified at the development process Requirements Specification. To clarify, many 9/15 public meeting as a guide (documented requirements. This documents have requirements that are below) and update the RTM as required. evaluation would also incorporated by reference into the SRS, but what include an evaluation of served to direct the author to include those 2. The next issue of the IV&V report will include how the WBN2 specific various documents in the SRS or, if the the Requirements phase review of the RTM requirement is based on the System and a partial review for the Design phase. requirements were Requirements Specification, what directed the addressed by the author to include the requirement there? 3. Westinghouse will add a comments column in reusable software the Requirements Traceability Matrix (RTM) elements. (see

3. Clarify whether the unnumbered paragraphs in the to address items not in the SRS or SysRS. ML102920031 Item No 5)

Post Accident Monitoring Systems Software Requirements Specification, such as in the section 4. IEEE 830 says you shouldnt have planning headings, or are all such sections simply information in the SRS. Westinghouse has considered to be informative? agreed to remove this information.

Does the same apply to documents referenced by 5. IEEE 830 says you shouldnt have process the SRS? Such as WCAP-16096-NP-A, Rev. 1A, requirements in the SRS. Westinghouse has Software Program Manual for Common Q agreed to remove these requirements.

Systems, which is incorporated by reference in requirement R2.3-2 in the SRS. 6. Westinghouse will perform and document an evaluation of the SRS to ensure compliance R2.3-2 [The PAMS software shall comply with with Reg. Guide 1.172 and justify any the requirements and guidelines defined in WCAP- deviations.

16096-NP-A, Software Program Manual for Common Q Systems (reference 5).] 7. 25 issues identified by V&V where some requirements have not been included in the If any requirements are expressed in such SDS (14) and SRS (11) at the revisions unnumbered paragraph form instead of individually reviewed by V&V. Have these been identified requirements, please list them, describe addressed? Yes. The next revisions of the why they satisfy the fundamental requirement of SDS and SRS address these issues.

unambiguity, and describe how they were verified.

8. Some hardware requirements are contained

4. Are there any sources of requirements in parallel in the SRS instead of the System Design with the Post Accident Monitoring Systems Specification (SDS). These will be removed

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date Software Requirements Specification? Meaning from the SRS and incorporated into the next does the SRS contain, explicitly or by reference, revision of the SDS.

all the requirements that were used in the design phase for the application specific software, or do 9. RTM item R4.2-2 protection class software software design phase activities use requirements set to 0. Needs to be fixed internally write found in any other source or document? If so, CAPs to revise the application restrictions what are these sources or documents? document on AC160.

5. References 12, 27, 29, and 31-44 in the Post 10. Westinghouse to improve the traceability of Accident Monitoring Systems Software the tests that are performed with the function Requirements Specification are various types of enable (FE) switch in the ENABLE position.

Reusable Software Element.

11. Westinghouse to revise documents to be These references are used in the body of the consistent with referring to the FE switch in SRS, for example: the ENABLE position R5.3.14-2 [The Addressable Constants CRC error 12. The flow of information is from the SysRS to signal shall be TRUE when any CAL CRC's the SDS (hardware) and SRS (software).

respective ERROR terminal = TRUE (WNA-DS- Describe how the documents are used.

00315-GEN, "Reusable Software Element Describe in 1.1 of the SysRS. Need a good Document CRC for Calibration Data" [Reference write up of how the process works.

12]).]

13. Westinghouse and TVA will develop a revised They are also included via tables such as found in schedule for document submittals and requirement R7.1.2-1 provide it to the NRC no later than 9/30/10

[The Watts Bar 2 PAMS shall use the application- 14. TVA will update the Procurement Requisition specific type circuits and custom PC elements Resolution Matrix and submit it to show how listed in Table 7.1-1.] the Common Q PAMS design meets the contract requirements.

Do the referenced reusable software element documents include requirements not explicitly stated in 15. Westinghouse to add the Software Design the SRS? If so what is their origin? Descriptions to the RTM

16. Westinghouse to clarify how requirements or documents are incorporated by reference into the Common Q PAMS requirements.

17. Westinghouse to review the use of shall outside of numbered paragraphs in requirements documents to ensure that all requirements are captured and clearly identified.

18. Westinghouse to resolve the following questions concerning SDDs

a. Is the SDD a standalone document or will it incorporate the generic SDD by reference?

b. What are the SDDs?

c. PAMS is a delta document so how do we capture all the generic requirements for traceability.

For Reusable Software Elements, Westinghouse to describe as qualified libraries by following the

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date SPM and qualified using the Software Elements Test procedure under Appendix B program.

Provide a summary of RSEDs generic WCAP.

Westinghouse to determine if the WCAP was docketed under the AP1000 RSED concept is not in the SPM. WCAP-15927 AP-1000 does not discuss RCEDs. WCAP process was acceptable.

RSEDs are listed in the SDD References.

143 The WBN2 PAMS Software Requirements Responder: WEC 17. N Open Open-TVA/WEC ML101650255, WBN2 PAMS System EICB (Carte)

Specification (WBN2 PAMS SRS - ML101050202) Item No. 7 Requirements Specification contains a table (see page iii) titled, Document Addressed in the 9/15 public meeting and 9/20 - To be addressed Traceability & Compliance, which states that the 9/21 audit. A detailed explanation will be by Revision of TVA docketed WNA-DS-01617-WBN2 PAMS SRS was created to support the three provided. the RTM, SRS, WBT Rev. 1, RRAS Watts Bar 2 documents identified (one of which is the WBN2 PAMS SysRS, and NSSS Completion Program I&C SysRS). Section 1.1, Overview, of the WBN2 PAMS SysDS. Projects Post Accident SRS states: This document describes requirements Monitoring System- System for the major software components Due 12/31/10. Requirements Specification, dated December 2009.

(a) Please list and describe each of the major software components. Please include a description of any NRC review for each of these components.

(b) Please list and describe each of the other software components. Please include a description of any NRC review for each of these components.

(c) What other documents contain the requirements for the other software components?

The WBN2 PAMS System Design Specification (WBN2 PAMS SDS) contains a table (see page iii) titled, Document Traceability & Compliance, which states that the WBN2 PAMS SysRS was created to support the WBN2 PAMS SysRS. Section 1.1, Purpose, of the WBN2 PAMS SDS states: The purpose of this document is to define the hardware design requirements (c) Do the WBN2 PAMS SRS and SDS, together, implement all of the requirements in the WBN2 PAMS SysRS?

(d) Please briefly describe all of the documents that implement the WBN2 PAMS SysRS.

145 The WBN2 PAMS System Design Specification Responder: WEC 18. N Open Open-TVA/WEC ML101650255, WBN2 PAMS System Design EICB (Carte)

(WBN2 PAMS SDS) contains a table (see page iii) Item No. 9 Specification titled, Document Traceability & Compliance, which This item is used to track all traceability During the September 20- To be addressed states that the WBN2 PAMS SDS was created to issues with the System Design Specification 21, 2010 audit at by Revision of TVA docketed WNA-DS-01667-support the WBN2 PAMS SysRS. (SDS). Westinghouse, it was the RTM, SRS, WBT Rev. 1, RRAS Watts Bar 2 acknowledged that SysRS, and NSSS Completion Program I&C (a) Does the WBN2 PAMS SDS implement all of the At the September 15 public meeting in SysDS. Projects Post Accident TVA/Westinghouse had hardware requirements in the WBN2 PAMS SysRS? Rockville, the following actions were agreed Monitoring System- System to. These items partially address the previously (in September Due 12/31/10. Design Specification, dated (b) Please briefly describe all of the documents that traceability concerns with the System Design 15, 2010 public meeting) December 2009.

implement the hardware requirements of the WBN2 Specification. This item will be updated with stated:

PAMS SysRS. the results of the September 20 and 21 Commercial Grade Dedication and SDS RTM TVA would provide the audit. RSED RTM. (see

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date ML102920031 Item No 6)

1. Westinghouse will perform completed a review of the Requirements Traceability TVA would revise and Matrix(RT), using the issues identified at the resubmit the PAMS RTM 9/15 public meeting as a guide (documented to address all types of below) and update the RTM as required.

issues identified in the

2. Some hardware requirements are contained public meeting. (see in the SRS instead of the System Design ML102920031 Item No 7)

Specification (SDS). These will be removed from the SRS and incorporated into the next TVA would revise and revision of the SDS. resubmit the Software Verification and Validation

3. 25 issues identified by V&V where some phase summary report for requirements have not been included in the the requirements phase SDS (14) and SRS (11) at the revisions to document the reviewed by V&V. Have these been addressed? Yes. The next revisions of the completion of the SDS and SRS address these issues. requirements phase review. (see

4. TVA will update the Procurement Requisition ML102920031 Item No 8)

Resolution Matrix and submit it to show how the Common Q PAMS design meets the contract requirements.

5. The next issue of the IV&V report will include the Requirements phase review of the RTM and a partial review for the Design phase.

6. Westinghouse to provide the generic AC160 and flat panel specifications.

7. Westinghouse and TVA to develop a schedule of licensing document submittals that can be met by the project team.

8. The flow of information is from the SysRS to the SDS (hardware) and SRS (software).

Describe how the documents are used.

Describe in 1.1 of the SysRS. Need a good write up of how the process works.

185 7/15/2010 Responder: WEC 19. N Open Open-TVA/WEC EICB RAI EICB (Carte)

ML102980066 An emphasis is placed on the traceability of Steve Clark to look at how to combine traceability Due 10/22/10 Item No. 17 requirements in Software Requirements Specifications items.

in the SRP, in the unmodified IEEE std 830-1993, and even more so given the modifications to the standard Was addressed to during the 9/15 meeting and listed in Regulatory Guide 1.172, which breaks with 9/20 - 9/21 audit.

typical NRC use of the word should to say Each identifiable requirement in an SRS must be traceable backwards to the system requirements and the design bases or regulatory requirements that is satisfies Also the NRC considers that the SRS is the complete set of requirements used for the design of the software, whether it is contained within one document or many. In order to evaluate an SRS against the guidance in the SRP the staff needs access to all the requirements.

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date References 12, 27, 29, and 31-44 in the Post Accident Monitoring Systems Software Requirements Specification are various types of Reusable Software Element.

These references are used in the body of the SRS, for example:

R5.3.14-2 [The Addressable Constants CRC error signal shall be TRUE when any CAL CRC's respective ERROR terminal = TRUE (WNA-DS-00315-GEN, "Reusable Software Element Document CRC for Calibration Data" [Reference 12]).]

They are also included via tables such as found in requirement R7.1.2-1

[The Watts Bar 2 PAMS shall use the application-specific type circuits and custom PC elements listed in Table 7.1-1.]

Do the referenced reusable software element documents include requirements not explicitly stated in the SRS? If so what is their origin?

187 By letter dated June 18, 2010, TVA docketed Responder: Merten 20. N Open Open-TVA/WEC ML101970033, TVA Letter Are these connections already EICB (Carte) responses to NRC requests for information. Item No. 1 & 2 dated 10/5/10 docketed?

1) Please refer to the revised response to letter Partial Response provided Revise Response

1) Enclosure 1, Item No. 33 of the TVA letter dated dated 10/5/10 Item 18 (RAI Matrix item 115). in letter dated 10/5/10 June 18, 2010, did not identify any connection from the Due 12/31 PAMS Operator Modules (OMs) to the plant computer and printers; however, Figure 2.1-1 of the PAMS 2) This is a duplicate of closed RAI Matrix Item NNC 8/25/10: Why did TVA System Requirements Specification (WNA-DS-01617- 45. not catch this on the review WBT Rev. 1 - ML101680578) shows a TCP of the PAMS SysRS or connection from the OMs to the plant computer and SRS? Does TVA check that printer. Please explain. the CQ PAMS system meets the requirements in its

2) Please clarify whether any digital safety-related purchase specifications?

systems or components have a digital communications path to non-safety-related systems or with safety related systems in another division. If so, NRC staff will need these paths identified on the docket.

202 7.5.2 7/22/2010 Responder: WEC 21. N Open Open-TVA/WEC EICB RAI TVA Letter EICB (Carte)

ML102980066 dated 10/5/10 The letter (ML0003740165) which transmitted the Revision 1 of the Licensing Technical Report will Partial Response provided Licensing Item No. 4 Safety Evaluation for the Common Q topical report to provide more detailed information on the changes in letter dated 10/5/10 Technical Report Westinghouse stated: "Should our criteria or to the platform. R2 Due 12/3 regulations change so that our conclusions as to the acceptability of the report are invalidated, CE Nuclear Rev. 2 of the Licensing Technical Report will Power and/or the applicant referencing the topical include the applicability of guidance.

report will be expected to revise and resubmit their respective documentation, or submit justification for continued applicability of the topical report without revision of the respective documentation." Question No 81 identified many criteria changes; please revise the respective documentation or submit justification for continued applicability of the topical report.

(

212 7.5.2 7/27/2010 Responder: WEC 22. N Open Open-TVA/WEC EICB RAI C

a

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date ML102980066 By letter dated June 18, 2010 (ML101940236) TVA Application specific requirements for testing. This Due 12/31/10 Item No. 10 stated (Enclosure 1, Attachment 3, Item No. 3) that the cannot be addressed in a topical report.

PAMS system design specification and software Evaluation of how the hardware meets the requirements specification contain information to regulatory requirements.

address the "Design Report on Computer Integrity, Test and Calibration..." The staff has reviewed these WEC to provide the information and determine documents, and it is not clear how this is the case. where the information will be located.

(1) Please describe how the information provided demonstrates compliance with IEEE 603-1991 Clauses 5.5, 5.7, 5.10, & 6.5.

(2) Please describe how the information provided demonstrates conformance with IEEE 7-4.3.2-2003 Clauses 5.5 & 57.

245 8/3/2010 Responder: WEC 23. N Open Open-TVA/WEC EICB RAI LIC-101 Rev. 3 Appendix B EICB (Carte)

ML102980066 Section 4, "Safety Evaluation" Section 5.8 of the Common Q SPM (ML050350234) Relates to the commitment to provide the test Due 12/7/10 Item No. 119 states: "the information relied identifies the required test documentation for systems plan and the SPM compliance matrix upon in the SE must be developed using the Common Q SPM. Please provide docketed correspondence."

sufficient information for the NRC staff to independently assess whether the test plan for WBN2 LIC-101 Rev. 3 states: "The PAMS, is as described in the SPM (e.g., Section safety analysis that supports the 5.8.1). change requested should include technical information in sufficient detail to enable the NRC staff to make an independent assessment regarding the acceptability of the proposal in terms of regulatory requirements and the protection of public health and safety."

250 8/8/2010 Responder: WEC 24. N Open Open-TVA/WEC LIC-101 Rev. 3 Appendix B EICB (Carte)

Section 4, "Safety Evaluation" The SPM describes the software and documents that Westinghouse develops Software Release Due 10/22/10 states: "the information relied will be created and placed under configuration control. Reports/Records and a Configuration upon in the SE must be The SCMP (e.g., SPM Section 6, Software Management Release Report. Describe the docketed correspondence."

Configuration Management Plan) describes the documents and when they will be produced.

implementation tasks that are to be carried out. The Summarize guidance on how to produce these LIC-101 Rev. 3 states: "The acceptance criterion for software CM implementation is records, focus on project specific requirements in safety analysis that supports the that the tasks in the SCMP have been carried out in SPM etc. change requested should include their entirety. Documentation should exist that shows technical information in sufficient that the configuration management tasks for that detail to enable the NRC staff to activity group have been successfully accomplished. make an independent Please provide information that shows that the CM assessment regarding the tasks have been successfully accomplished for each acceptability of the proposal in life cycle activity group. terms of regulatory requirements and the protection of public health and safety."

252 8/8/2010 Responder: WEC 25. N Open Open-TVA/WEC LIC-101 Rev. 3 Appendix B EICB (Carte)

Section 4, "Safety Evaluation" The SPM contain requirements for software Explain response to AP1000 audit report. Read ML091560352 RTM Revision due states: "the information relied requirements traceability analysis and associated RTM docketed NRC awaiting V&V evaluation of 12/31 upon in the SE must be documentation (see Section 5.4.5.3, Requirements RTM. docketed correspondence."

Traceability Analysis). Please provide information that demonstrates that requirements traceability Check on this LIC-101 Rev. 3 states: "The analysis has been successfully accomplished. Hilmes safety analysis that supports the change requested should include technical information in sufficient

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date detail to enable the NRC staff to make an independent assessment regarding the acceptability of the proposal in terms of regulatory requirements and the protection of public health and safety."

268 8/19/2010 Responder: WEC 26. N Open Open-TVA/WEC EICB (Carte)

By letter dated March 12, 2010 (ML101680577), TVA Andy to see what can be done. Due 12/31/10 stated that the application specific hardware and software architecture descriptions are addressed in the HILMES Check on WBN2 PAMS System Design Specification This (ML101680579, ML102040481, & ML102040482) and Software Requirements Specification (ML101050202, ML102040486, & ML1022040487).

Neither of these documents contain a non-proprietary figure of the architecture that can be used in the SE.

Please provide a non-proprietary figure of the architecture.

301 1.TVA is requested to address the consequences of Responder: WEC/Davies/Clark 27. N Open Open-TVA/WEC RAI No. 11 software common cause failure including all potential ML102980005 resulting failures (i.e. total loss of CERPI, system fail TVA Partial Response: Due TBD 10/26/2010 as-is).

For all accidents analyzed in WBN Unit 2 FSAR, 1) Please

2. In addition, address how the actions stipulated in the Chapter 15, no credit is taken for the rod position address how plant Technical Specifications will be taken when the indication system. For all continuous rod fail-as-is is CERPI system indications are lost. Information notice withdrawal accidents analyzed in WBN Unit 2 detected i.e.

IN 2010-10 (ML100080281) addresses the need to FSAR, Chapter 15, no credit is taken for any rod alarms, rod consider software failures and the actions required to stop/block. position assure that the plant will stay within its licensing basis. deviation (1) Technical Specification 3.1.8, Rod Position alarms, etc.

3. Provide FMEA in support of your response. Indication, does not have an action for total 2) Response loss of indication; therefore, a total loss of acceptable.

4. FSAR Table 7.7-1, Plant Control System Interlocks CERPI puts the plant into LCO 3.0.3 which 3) Response lists interlock C-11 to block automatic rod withdrawal states: acceptable.

EICB (Singh) when 1/1 Control Bank D rod position is above 4) a. Response setpoint. This interlock capability would be lost in case When an LCO is not met and the associated acceptable.

of total loss of CERPI. How is the rod block assured ACTIONS are not met, an associated b. Pl. address for this event? ACTION is not provided, or if directed by the failure mode associated ACTIONS the unit shall be placed on fail-as-is.

5. How is automatic rod withdrawal affected in case of in a MODE or other specified condition in 5) Response total loss of signals from the CERPI to the ICS? Is this which the LCO is not applicable. Action shall acceptable.

interlock fail safe? be initiated within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> to place the unit, as 6) Response applicable, in: acceptable.

6.FSAR chapter 15, Section 2.3.2.1states that the resolution of the rod position indicator channel is 5% of MODE 3 within 7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />; span (7.2 inches). The CERPI system accuracy MODE 4 within 13 hours1.50463e-4 days <br />0.00361 hours <br />2.149471e-5 weeks <br />4.9465e-6 months <br />; and specified in the CERPI System requirements MODE 5 within 37 hours4.282407e-4 days <br />0.0103 hours <br />6.117725e-5 weeks <br />1.40785e-5 months <br />.

Specification, WNDS-DS-00001_WBT, Rev. 2 is 12 steps or 5.19%. The specified system accuracy Exceptions to this Specification are stated in seems to be greater than the accuracy assumed in the the individual Specifications. Where FSAR Chapter 15. Please clarify this anomaly. corrective measures are completed that permit operation in accordance with the LCO or ACTIONS, completion of the actions required by LCO 3.0.3 is not required.

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date (2) CERPI common mode software failure will be addressed in a future RAI response letter.

(3) There is no FMEA for the CERPI system.

(4) Control Bank D Automatic Rod Withdrawal Limit would be assured by Operations and control circuitry by the following 2 methods:

a. A simultaneous failure of all indications of the Rod Position Indication System places the plant in LCO 3.0.3, since it would prevent compliance with actions in LCO 3.1.8.

b. CERPI cabinet relays A-KX-18 and B-KX-18 are the PLC controlled components of Rod Withdrawal Limit.

The relays are active low requiring power to activate the contacts in the control circuit. Total loss of CERPI will open the contacts and block Automatic Rod Withdrawal. Additionally, Annunciator window 64F will annunciate to show C-11 BANK D AUTO WITHDRAWAL BLOCKED.

(5) The CERPI Maintenance and Test Panels are used to set the Rod Withdrawal Limit with output signal to ICS as a parallel path. As stated above, the relays are the controlling functions and loss of signal to ICS will not affect the capability of the control circuit to disable the Automatic Rod Withdrawal function. The C-11 interlock is fail safe with regards to loss of power.

(6) The cycle-specific analyses for the static rod misalignment assume full misalignment of an individual rod from the bank position indicator(s). Such a misalignment exceeds that which is possible during plant operations when accounting for the most adverse combination of the rod deviation alarm and uncertainty of the rod position indicator (both 12 steps). For consistency of parameter (and units) with the deviation alarm and position indicator uncertainty, the WBN Unit 2 FSAR Chapter 15, Section 2.3.1 will be revised in Amendment 102 to read:

The resolution of the rod position indicator channel is +/- 12 steps. Deviation of any RCCA from its group by twice this distance (24 steps) will not cause power distributions worse than the design limits. The deviation alarm alerts the operator to rod deviation with respect to group demand position in excess of 12 steps. If the rod deviation alarm is not

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad12E8A.docx Open Items to be Resolved for SER Approval SE FSAR NRC

Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date operable, the operator is required to take action as required by the Technical Specifications.

This change is consistent with FSAR section 4.3.2.2.5, Limiting Power Distributions Page 4.3-13, which states the maximum deviation assumed is 12 steps.

331 7.6.1 7.6.7 As a follow up of OI 190, Staff has reviewed the Responder: WEC/Harless/Clark 28. N Open Open-TVA/WEC RAI No. 8 Follow-up of OI-190.

proprietary version of the DMIMS-DX system ML102980005 description to verify the conformance claims in the TVA Partial Response: Pending FSAR 10/26/2010 FSAR. Staff has noted the following insufficiencies Amendment 102 and discrepancies between the FSAR and the 1) The source of the information is the DMIMS- submittal proprietary version of the system description for loose DXTM Operations and Maintenance Manual, parts monitoring system provided by TVA. TS3176, Revision 0, dated August 2010.

Attachment 14 contains the revised system

1) FSAR, Amendment 100, page 7.6-5 states, description, Westinghouse DIMMS-DXTM During baseline testing, the reactor vessel and Loose Part Detection System Description, steam generator are impacted three feet from Revision 1.

each sensor with a force of 0.5 ft-lb. Loose parts detection is accomplished at a frequency of 1 kHz 2) The source of the information is the DMIMS-to 20 kHz, where background signals from the DXTM seismic qualification report, RCS are acceptable. Spurious alarming from Westinghouse report EQ-QR-33-WBT, control rod stepping is prevented by a module that Revision 0, Seismic Evaluation of the Digital detects CRDM motion commands and Metal Impact Monitoring System (DMIMS-automatically inhibits alarms during control rod DXTM) for Watts Bar Unit 2. Attachment 14 stepping. contains the revised system description, Westinghouse DIMMS-DXTM Loose Part The online sensitivity of the DMIMS-DX' is such Detection System Description, Revision 1.

that the system will detect a loose part that weighs from 0.25 to 30 Ib and impacts with a kinetic 3) The entries for the following items in FSAR energy of 0.5 ft-lb on the inside surface of the RCS Section 7.6.7 will be modified in Amendment pressure boundary within 3 ft of a sensor. 102 as shown in Attachment 3 for draft revision to WBN Unit 2 FSAR Section 7.6.7, The source of this information is not cited nor is it Loose Part Monitoring System (LPMS) described in the system description. TVA to System Description.

provide the source of the information and update the system description as needed. Sensors (In Containment)

Softline Cable (In Containment)

2) Regulatory Guide (RG) 1.133, rev.1, regulatory Preamplifier (In Containment) position C.1.g states that, Operability for Seismic and Environmental Conditions. Components of the Attachment 3 contains the FSAR Amendment loose-part detection system within containment 102 Change Markups that reflect these should be designed and installed to perform their changes.

function following all seismic events that do not require plant shutdown, i.e., up to and including 4) The source of the information is the Operating Basis Earthquake (OBE). Recording Westinghouse Letter WBT-D-2580, equipment need not function without maintenance Tennessee Valley Authority Watts Bar following the specified seismic event provided the Nuclear Plant Unit 2 Response to NRC RAIs audio or visual alarm capability remains functional. on LPMS (Reference 5). Attachment 14 The system should also be shown to be adequate contains Westinghouse DIMMS-DXTM by analysis, test, or combined analysis and test for Loose Part Detection System Description, the normal operating radiation, vibration, Revision 1.

temperature, and humidity environment.

EICB (Singh)

In responding to Item 4, conflicting FSAR, Amendment 100, page 7.6-5 states, The information was found between the DMIMS-DX' audio and visual alarm capability will Westinghouse-prepared FSAR section and remain functional after an Operating Basis various Westinghouse technical documents.

Earthquake (OBE). All of the DMIMS-DX' To fully respond to this item, a change to the

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Response

Acceptable RAI Resp.

No. POC Issue TVA Response(s) Y/N Status/ Current Actions Resolution Path RAI No. & Date Comments Sec. Sec. Date components are qualified for structural integrity FSAR is required to change the minimum flat during a Safe Shutdown Earthquake (SSE) and sensor frequency response from 5 Hz to 10 will not mechanically impact any safety-related Hz. Attachment 3 contains the FSAR equipment. Paragraphs 4.c and 4.d of the system Amendment 102 Change Markups that reflect description are not consistent with the seismic the revised frequency response of the sensor.

qualifications described in the FSAR. TVA to provide the source of the information contained in 5) In-containment component qualification for the FSAR and update the system description as vibration as addressed in regulatory position needed. C.1.g of RG 1.133, will be addressed in a future RAI response letter.

3) The system description clearly describes the In-containment equipment and DIMMS-DX Cabinet equipment. The FSAR should be updated to reflect the equipment locations for clarification purposes.

4) The information regarding frequency ranges of the sensors is included on page 7.6-6 of Amendment 100 of the FSAR but the system description does not contain this information. Please provide the source of this information and update the system description to reflect the appropriate information.

5) Please provide information as to how the in-containment components are qualified for vibration as addressed in regulatory position C.1.g of RG 1.133.