ML110070335

OL - FW: Update NRC I&C Matrix

ML110070335
Person / Time
Site:	Watts Bar
Issue date:	01/03/2011
From:	Office of Nuclear Reactor Regulation
To:	Division of Operating Reactor Licensing
References
Download: ML110070335 (58)

Text

WBN2Public Resource From: Poole, Justin Sent: Monday, January 03, 2011 2:14 PM To: Garg, Hukam; Darbali, Samir; Carte, Norbert; Singh, Gursharan Cc: WBN2HearingFile Resource

Subject:

FW: Update NRC I&C Matrix Attachments: 20101203 Open Item List MasterTVA Update 01-03-11.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: Monday, January 03, 2011 1:33 PM To: Crouch, William D; Hilmes, Steven A Cc: Poole, Justin

Subject:

Update NRC I&C Matrix Bill:

Please forward to Justin.

Thanks, Steve Steve Clark Bechtel Power Corp.

Control Systems Watts Bar 2 Completion Project Phone: 423.365.3007 e-mail: msclark0@tva.gov 1

Hearing Identifier: Watts_Bar_2_Operating_LA_Public Email Number: 232 Mail Envelope Properties (19D990B45D535548840D1118C451C74D7B645455D5)

Subject:

FW: Update NRC I&C Matrix Sent Date: 1/3/2011 2:13:51 PM Received Date: 1/3/2011 2:13:55 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 "Darbali, Samir" <Samir.Darbali@nrc.gov>

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

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

Tracking Status: None Post Office: HQCLSTR02.nrc.gov Files Size Date & Time MESSAGE 607 1/3/2011 2:13:55 PM 20101203 Open Item List MasterTVA Update 01-03-11.docx 438667 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) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N B (

1. Y 001 All All A The Watts Bar Nuclear Plant FSAR red-line for Unit 2 (Agency 12/15/2009 Presentation Slides Closed Closed EICB RAI 3/12/2010 NNC 11/19/09: The FSAR contains B (

2. Y 002 All All A Are there I&C components and systems that have changed to a 12/15/2009 Presentation Slides Closed Closed EICB RAI 3/12/2010 NNC 11/19/09: The FSAR contains B (

3. Y 003 All All A Because a digital I&C platform can be configured and programmed 12/15/2009 Presentation Slides Closed Closed EICB RAI 3/12/2010 NNC 11/19/09: The FSAR contains

( B 004 All All Please identify the information that will be submitted for each Responder: Webb 1/13/10 Public Meeting 4. Y Closed Closed EICB RAI January 13, 2010 NNC 11/19/09: LIC-110 Rev. 1 Section 005 7.1.3.1 By letter date February 28, 2008 (Agencywide Documents Access Responder: Craig/Webb 5. Y Closed Closed EICB RAI TVA Letter dated D 6. Y

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006 Amendment 95 of the FSAR, Chapter 7.3, shows that change 7.3- By letter dated February 5, 2010: TVA provided the Unit 2 Closed Closed EICB RAI TVA Letter dated NNC: WCAP-12096 Rev. 7 007 7.1.3.1 a ( The setpoint methodology has been reviewed and approved by the TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 7 7. Y Closed Closed EICB RAI TVA Letter dated TVA to provide Rev. 8 of the Unit 1 008 7.3 G G G G There are several staff positions that provide guidance on setpoint TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 8 8. Y Closed Closed EICB RAI TVA Letter dated r A 009 7.3.2 5.6, Change 7.3-2, identified in Watts Bar Nuclear Plant FSAR red-line TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 9 9. Y Closed Closed EICB RAI 3/12/10,

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010 7.3 7.3 The original SER on Watts Bar (NUREG-0847) documents that the TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 10 10. Y Closed Closed EICB RAI 3/12/10, D

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011 7.3.2 5.6, NUREG-0847 Supplement No. 2 Section 7.3.2 includes an TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 11 11. Y Closed Closed EICB RAI ML101680598, D

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( 12. Y 012 7.4 7.4 ( D The original SER on Watts Bar (NUREG-0847) documents that the TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 12 Closed Closed EICB RAI TVA Letter dated G a r 13. Y 013 7.1.3.1 Chapter 7 and Chapter 16 of Amendment 95 to the FSAR do not TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 13 Closed Closed EICB RAI TVA Letter dated TS have been docketed.

014 All All ( B Provide the justification for any hardware and software changes Date: 4/27/10 14. Y Closed Closed NRC Meeting TVA Letter dated 015 D ( Verify that the refurbishment of the power range nuclear Date: 4/27/10 15. Y Closed Closed NRC Meeting TVA Letter dated

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016 a C ( Identify the precedents in license amendment requests (LARs), if Date: 4/27/10 16. Y Closed Closed NRC Meeting TVA Letter dated G

r a A 17. Y 017 7.3.1 7.3.1, Identify precedents in LARs, if any, for the solid state protection Date: 4/27/10 Closed Closed NRC Meeting TVA Letter dated

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018 Identify any changes made to any instrumentation and control Date: 4/27/10 18. Y Closed Closed NRC Meeting TVA Letter dated 019 Verify that the containment purge isolation radiation monitor is the Date: 4/27/10 19. Y Closed Closed NRC Meeting TVA Letter dated

( D 020 Provide environmental qualification information pursuant to Section Date: 4/27/10 20. Y Closed Closed NRC Meeting TVA Letter dated NNC 4/30/10: SRP Section 7.0 states:

021 7.3 ( ( ( ( ( For the Foxboro Spec 200 platform, identify any changes in Date: 5/25/10 21. Y Closed Closed NRC Meeting TVA Letter dated The resolution of this item will be C a G G G G G 022 7.3.2 5.6, Verify the auxiliary feedwater control refurbishment results in a Date: 4/27/10 22. Y Closed Closed NRC Meeting TVA Letter dated a r 023 Provide environmental qualification (10 CFR 50.49) information for Date: 4/27/10 23. Y Closed Closed NRC Meeting TVA Letter dated NNC 4/30/10: SRP Section 7.0 states:

024 Provide a schedule by the January 13, 2010, meeting for providing During the January 13, 2010 meeting, TVA presented a 24. Y Closed Closed NRC Meeting N/A - Request for NNC 4/30/10: Carte to address

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025 7.5.2 7.5.1 For the containment radiation high radiation monitor, verify that the Date: 4/27/10 25. Y Closed Closed NRC Meeting ML101230248, 026 Provide environmental qualification (10 CFR 50.49) information for Date: 4/27/10 26. Y Closed Closed NRC Meeting TVA Letter dated NNC 4/30/10: SRP Section 7.0 states:

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027 7.7.1.4 For Foxboro I/A provide information regarding safety/non-safety- Date: 4/27/10 27. Y Closed Closed NRC Meeting TVA Letter dated 028 For the turbine control AEH system, verify that the refurbishment Responder: Mark Scansen 28. Y Closed Closed NRC Meeting TVA Letter dated C C C C C S 029 For the rod control system, verify that the refurbishment results in a Date: 4/27/10 29. Y Closed Closed NRC Meeting TVA Letter dated G G G G 030 Regarding the refurbishment of I&C equipment, identify any Responder: Clark 30. Y Closed Closed NRC Meeting TVA Letter dated 031 For the rod position indication system (CERPI), provide information Date: 4/27/10 31. Y Closed Closed NRC Meeting TVA Letter dated CERPI is non-safety related.

a a a a a i 032 For the process computer, need to consider cyber security issues Date: 4/27/10 32. Y Closed Closed NRC Meeting TVA Letter dated EICB will no longer consider cyber 033 For the loose parts monitoring system, provide information Date: 4/27/10 33. Y Closed Closed NRC Meeting TVA Letter dated The loose parts monitoring system is 034 2/4/2010 Responder: TVA 34. Y Closed Closed N/A TVA Letter dated 034.1 ( Chapter 7.1 - Introduction 35. Y Close Closed N/A N/A

( a 034.2 D Chapter 7.2 - Reactor Trip System 36. Y Close Closed N/A N/A M ( r 034.3 7.3 7.3 a Chapter 7.3 - ESFAS 37. Y Closed Closed N/A N/A a G g r 38. Y 034.4 7.5.1.1 7.5.2 Chapter 7.5 - Instrumentation Systems Important to Safety Closed Closed N/A N/A Closed 034.5 7.5.1.1 7.5.2 Chapter 7.6 - All Other Systems Required for Safety 39. Y Closed Closed N/A N/A Closed r

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034.6 Chapter 7.7 Control Systems 40. Y Closed Closed N/A N/A n

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035 ( 2/18/2010 Responder: Clark 41. Y Closed Closed RAI No. 1 TVA Letter dated LIC-110 Section 6.2.2 states: Design

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M 036 7.5.2 7.5.1 C S February 18, 2010 Date: 5/25/10 42. Y Closed Closed NRC Meeting NNC: Unit 2 FSAR Section 7.5.1, Post a

a i 43. Y 037 7.5.1.1 7.5.2 2/18/2010 Responder: Clark Date: 5/25/10 Closed Closed N/A TVA Letter dated FSAR Amendment 100 provides

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 038 7.5.1.1 7.5.2 ( 2/18/2010 Responder: Clark Date: 5/25/10 44. Y Closed Closed EICB RAI TVA Letter dated The slides presented at the December 039 ( ( M January 13, 2010 Responder: Clark Date: 5/25/10 45. Y Closed Closed EICB RAI FSAR amendment The equation for the calculation of the G G a 46. Y 040 January 13, 2010 Responder: Clark Date: 5/25/10 Closed Closed EICB RAI EICB RAI FSAR amendment The equation for the calculation of the B

042 All All February 25, 2010: Telecom Date: 5/25/10 47. Y Closed Closed EICB RAI TVA Letter dated The drawing provided did not have the 044 7.5.2 7.5.1 February 25, 2010 Date: 5/25/10 48. Y Closed Closed EICB RAI TVA Letter dated

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045 February 25, 2010 Date: 5/25/10 49. Y Closed Closed EICB RAI TVA Letter dated

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046 February 25, 2010 Date: 5/25/10 50. Y Closed Closed N/A - Request for N/A C C C C C C (

047 7.5.2 7.5.1 4/8/2010 Responder: WEC/Hilmes Date: 5/25/10 51. Y Closed Closed EICB RAI TVA Letter dated G

048 7.5.2 7.5.1 April 8, 2010 Date: 5/25/10 52. Y Closed Closed EICB RAI TVA Letter dated a a a a a a A 049 7.5.2 7.5.1 4/8/2010 Responder: WEC Date: 5/25/10 53. Y Closed Closed EICB RAI TVA Letter dated 051 April 15, 2010 Date: 5/25/10 54. Y Closed Closed N/A N/A Review addressed by another Open

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052 7.5.2 7.5.1 April 19, 2010 Date: 5/25/10 55. Y Closed Closed RAI No. 12 S

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053 7.5.2 7.5.1 April 19, 2010 Date: 5/25/10 56. Y Closed Closed RAI No. 13 S

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054 7.5.2 7.5.1 4/19/2010 Responder: Slifer/Clark Date: 5/25/10 57. Y Closed Closed RAI No. 14 TVA Letter dated S

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055 7.5.2 7.5.1 4/19/2010 Responder: Slifer/Clark Date: 5/25/10 58. Y Closed Closed RAI No. 15 TVA Letter dated S

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056 April 19, 2010 Date: 5/25/10 59. Y Closed Closed RAI No. 16 TVA Letter dated Sorrento Radiation Monitoring S

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057 7.5.2 7.5.1 4/19/2010 Responder: TVA I&C Staff Date: 5/25/10 60. Y Closed Closed RAI No. 17 TVA Letter dated S

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058 7.5.0 7.5 April 19, 2010 Date: 5/25/10 61. Y Closed Closed RAI No. 18 TVA Letter dated S

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059 7.5.2 7.5.1 April 19, 2010 Date: 62. Y Closed Closed RAI No. 19 TVA Letter dated 060 7.5.2 7.5.1 April 19, 2010 Date: 5/25/10 63. Y Closed Closed N/A N/A Addressed by Open Item No. 47 061 7.5.2 7.5.1 April 19, 2010 Date: 5/25/10 64. Y Closed Closed N/A N/A Addressed by Open Item No. 48

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062 7.5.2 7.5.1 April 19, 2010 Date: 5/25/10 65. Y Closed Closed N/A N/A Addressed by Open Item No. 49 063 7.5.2 7.5.1 April 19, 2010 Date: 5/25/10 66. Y Closed Closed N/A N/A Addressed by Open Item No. 50 C C C C C C C C C C S 064 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: Webb Date: 4/8/2010 67. Y Closed Closed N/A - No question TVA Letter dated 065 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 68. Y Closed Closed N/A - No question TVA Letter dated G G 066 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 69. Y Closed Closed N/A - No question TVA Letter dated 072 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 70. Y Closed Closed N/A - No question N/A a a a a a a a a a a i 076 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: Clark Date: 5/25/10 71. Y Closed Closed N/A - No question N/A 077 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 72. Y Closed Closed N/A - No question TVA Letter dated 078 4/26/2010 Responder: Clark Date: 5/25/10 73. Y Closed Closed EICB RAI TVA Letter dated 079 4/26/2010 Responder: Clark Date: 5/25/10 74. Y Closed Closed EICB RAI TVA Letter dated Reviewed under Item 154 080 ( ( ( 4/26/2010 Responder: WEC 75. Y Closed Closed RAI No. 2 TVA Letter dated 083 7.5.2 7.5.1 C C S May 6, 2010 Date: 6/18/10 76. Y Closed Closed EICB RAI TVA Letter dated 084 7.5.2 7.5.1 a a i May 6, 2010 Date: 6/18/10 77. Y Closed Closed EICB RAI TVA Letter dated

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087 7.5.2 7.5.1 May 6, 2010 Date: 5/24/10 78. Y Closed Closed RAI No. 20 TVA Letter dated S

i 088 7.5.2 7.5.1 May 6, 2010 Date: 5/24/10 79. Y Closed Closed RAI No. 21 TVA Letter dated

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089 D ( ( ( 5/6/2010 Responder: Clark 80. Y Closed Closed EICB RAI TVA Letter dated NNC: Docketed response states that 090 a C C S 5/6/2010 Responder: Clark Date: 5/25/10 81. Y Closed Closed EICB RAI TVA Letter dated r a a i 82. Y 091 7.4 7.4 May 20, 2010 Date: 5/25/10 Closed Closed EICB RAI No.1 TVA Letter dated 093 ( May 20, 2010 Date: 5/25/10 83. Y Closed Closed N/A N/A Will be reviewed under item 154 D ( (

094 a 5/20/2010 Responder: Clark Date: 5/25/10 84. Y Closed Closed N/A N/A Information was found in FSAR r G G 095 7.8.1, XX May 20, 2010 Date: 85. Y Closed Closed EICB RAI No. 2 TVA Letter dated

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096 7.7.5 XX 5/20/2010 Responder: 86. Y Closed Closed EICB RAI No.3 TVA Letter dated D

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Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

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

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097 7.4.2 7.4 May 20, 2010 Date: 87. Y Closed Closed EICB RAI No.4 TVA Letter dated D

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098 7.4.2 7.4 May 25, 2010 Date: 88. Y Closed Closed EICB RAI No.5 TVA Letter dated D

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099 April 12, 2010 Date: 89. Y Closed Closed Closed to Item 129

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100 D ( ( 5/20/2010 Responder: WEC 90. Y Closed Closed N/A - No question N/A B

102 a C C May 24, 2010 Date: 5/24/10 91. Y Closed Closed N/A TVA Letter dated Request for schedule not information.

a r a a 92. Y 103 7.4 7.4 5/27/2010 Responder: Ayala Date: 5/27/10 Closed Closed EICB RAI No.1 TVA Letter dated Submittal date is based on current

( 93. Y 104 7.4 7.4 ( D 5/27/2010 Responder: Merten Date: 5/27/10 Closed Closed EICB RAI No.1 TVA Letter dated Submittal date is based on current G a r 94. Y 105 April 29, 2010 Date: Closed Closed N/A N/A Will be reviewed under item 154.

106 May 6, 2010 Date: 5/25/10 95. Y Closed Closed RAI No. 9 TVA Letter dated

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107 ( May 6, 2010 Date: 5/28/10 96. Y Closed Closed RAI No. 22 TVA Letter dated D ( (

108 a S May 6, 2010 Date: 5/25/10 97. Y Closed Closed N/A N/A Will be reviewed under OI#154 r G i 109.a 7.8 XX 5/6/2010 Responder: N/A 98. Y Closed Closed N/A N/A

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109.b 5/6/2010 Responder: N/A 99. Y Closed Closed N/A N/A Duplicate of another open Item.

110 May 6, 2010 Date: 100. Y Closed Closed N/A N/A Information was found.

111 May 6, 2010 Date: 5/28/10 101. Y Closed Closed N/A TVA Letter dated Request to help find, not a request for D ( ( (

112 June 1, 2010 Date: 102. Y Closed Closed N/A N/A Information was received

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113 6/1/2010 Responder: Clark 103. Y Closed Closed EICB RAI TVA Letter dated a C C C 114 7.2 7.2 6/1/2010 Responder: WEC 104. Y Close Closed EICB RAI TVA Letter dated G G G G G 115 2/25/2010 Responder: Clark 105. Y Closed Closed EICB RAI TVA Letter dated r a a a 116 6/3/2010 Responder: WEC 106. Y Closed Closed EICB RAI TVA Letter dated Letter sent to Westinghouse requesting 118 7.4 7.4 6/8/2010 Responder: Merten 107. Y Closed Closed EICB RAI No.1 TVA Letter dated Submittal date is based on current

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119 June 10, 2010 Date: 108. Y Closed Closed RAI No. 23 TVA Letter dated 120 5/6/2010 Responder: Hilmes/Merten/Costley 109. Y Closed Closed EICB RAI TVA Letter dated D ( ( ( (

121 5/6/2010 Responder: Webb/Webber 110. Y Closed Closed EICB RAI TVA Letter dated a C C C S 122 June 14, 2010 Date: 111. Y Closed Closed N/A - Request for N/A r a a a i 123 7.7.3 7.4.1, 6/14/2010 Responder: 112. Y Closed Closed ML101720589, TVA Letter dated

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124 7.7.5 XX 6/14/2010 Responder: 113. Y Closed Closed ML101720589, Item TVA Letter dated D

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125 7.7.8 7.7.1.12 6/14/2010 Responder: 114. Y Closed Closed ML101720589, Item TVA Letter dated D

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126 7.8 7.8 ( June 14, 2010 Date: 115. Y Closed Closed ML101720589, Item TVA Letter dated

( ( D 127 7.2 7.2 a 6/16/2010 Responder: WEC/Clark 116. Y Closed Closed EICB RAI TVA Letter dated G G r 128 7.2 7.2 6/18/2010 Responder: WEC Drake /TVA Craig 117. Y Closed Closed EICB RAI TVA Letter dated Track through SE open item

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129 6/12/2010 Responder: WEC 118. Y Closed Closed N/A TVA Letter dated P

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130 6/28/2010 Responder: Clark 119. Y Closed Closed N/A TVA Letter dated P

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131 6/28/2010 Responder: Clark 120. Y Closed Closed N/A TVA Letter dated P

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132 6/28/2010 Responder: Clark 121. Y Closed Closed N/A TVA Letter dated P

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133 6/28/2010 Responder: Clark 122. Y Closed Closed TVA Letter dated P

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134 6/28/2010 Responder: Clark 123. Y Closed Closed TVA Letter dated 135 7.3.1 7.3.1 6/30/2010 Responder: Clark 124. Y Closed Closed RAI not necessary TVA Letter dated

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136 7.3.2, 7.4, 5.6, 6/30/2010 Responder: Clark 125. Y Closed Closed RAI not necessary TVA Letter dated 137 Several WBN2 PAMS documents contain a table titled, Document Responder: WEC 126. Y Closed Closed ML101650255, Item TVA Letter dated 139 C C C C a a P The WBN2 PAMS System Requirements Specification (WBN2 Responder: WEC 127. Y Closed Closed ML101650255, Item TVA Letter dated WBN2 PAMS System Requirements a a a a r r o 141 Deleted by DORL Date: 128. Y Closed Closed ML101650255, Item WBN2 PAMS System Requirements 146 6/17/2010 Responder: 129. Y Closed Closed ML101650255, Item PAMS System Requirements

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

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

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147 6/17/2010 Responder: 130. Y Closed Closed ML101650255, Item PAMS System Requirements 148 6/17/2010 Responder: 131. Y Closed Closed ML101650255, Item PAMS System Requirements 149 7.2 7.2 FSAR Section 7.1.1.2(2), Overtemperature delta T and Responder: Tindell 132. Y Close Closed ML101720589, Item TVA Letter dated

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150 7.2 7.2 Many of the changes were based on the Westinghouse document Responder: Clark 133. Y Close Closed ML101720589, Item TVA Letter dated 151 7.2 7.2 Provide the EDCR 52378 and 54504 which discusses the basis for Responder: Clark 134. Y Close Closed ML101720589, Item TVA Letter dated C C 152 7.2 7.2 Deleted portion of FSAR section 7.2.3.3.4 and moved to FSAR Responder: Merten/Clark 135. Y Close Closed ML101720589, Item TVA Letter dated 153 7.2 7.2 FSAR section 7.2.1.1.7 added the reference to FSAR section Responder: Craig/Webb 136. Y Close Closed ML101720589, Item TVA Letter dated 155 7.2 7.2 Summary of FSAR change document section 7.2 states that Date: 137. Y Closed Closed ML101720589, Item G G G G G G G G G G G G G 157 7.2 7.2 FSAR section 7.2.2.1.1, fifth paragraph was deleted except for the Responder: Tindell 138. Y Close Closed ML101720589, Item TVA Letter dated 158 7.2 7.2 FSAR section 7.2.2.1.1, paragraph six was changed to state that Responder: Tindell 139. Y Closed Closed ML101720589, Item TVA Letter dated a a 159 7.2 7.2 FSAR section 7.2.2.1.2 discusses reactor coolant flow Responder: Craig 140. Y Close Closed ML101720589, Item TVA Letter dated 160 7.2 7.2 FSAR section 7.2.2.2(7) deleted text which has references 12 and Responder: Tindell 141. Y Close Closed ML101720589, Item TVA Letter dated 161 7.2 7.2 FSAR section 7.2.2.3 states that changes to the control function Responder: Clark 142. Y Closed Closed ML101720589, Item TVA Letter dated 162 7.2 7.2 FSAR section 7.2.2.2(14) states that bypass of a protection Responder: Tindell 143. Y Closed Closed ML101720589, Item TVA Letter dated 163 7.2 7.2 Deleted by DORL Date: 144. Y Closed Closed ML101720589, Item 164 7.2 7.2 FSAR section 7.2.2.2(20) has been revised to include the plant Responder: Perkins 145. Y Closed Closed ML101720589, Item TVA Letter dated Item No. 8 sent to DORL a

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165 7.2 7.2 FSAR section 7.2.2.3.2, last paragraph of this section has been Responder: Clark 146. Y Closed Closed ML101720589, Item TVA Letter dated 166 7.2 7.2 Changes to FSAR section 7.2.2.2(20) are justified based on the Responder: Clark 147. Y Closed Closed ML101720589, Item TVA Letter dated 167 7.2 7.2 FSAR section 7.2.2.4, provide an analysis or reference to chapter Responder: Clark 148. Y Close Closed ML101720589, Item TVA Letter dated

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168 7.2 7.2 FSAR table 7.2-4, item 9 deleted loss of offsite power to station Responder: Clark 149. Y Close Closed ML101720589, Item TVA Letter dated 169 6/18/2010 Responder: Clark 150. Y Closed Closed 170 6/17/2010 Responder: Clark 151. Y Closed Closed

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171 7.2 7.2 6/17/2010 Responder: Craig 152. Y Closed Closed EICB RAI TVA Letter dated Closed to SE Open Item 172 6/17/2010 Responder: Craig 153. Y Closed Closed EICB RAI M M ( ( ( ( ( ( ( ( ( ( ( (

173 7.1 7.1 6/17/2010 Responder: Craig/Webb/Powers 154. Y Closed Closed EICB RAI 174 6/28/2010 Responder: Hilmes/Craig 155. Y Closed Closed EICB RAI 175 June 28, 2010 Responder: 156. Y Closed Closed EICB RAI C a C C C C C 176 7.1 7.1 6/28/2010 Responder: Craig/Webb 157. Y Closed Closed EICB RAI 177 7.5.2.1 7.5.1 7/15/2010 Responder: Clark 158. Y Closed Closed N/A TVA Letter dated RAI not required a a G G G G G G G G G G G G 178 7.5.2.1 7.5.1 7/15/2010 Responder: Clark 159. Y Closed Closed N/A TVA Letter dated RAI not required 179 An emphasis is placed on traceability in System Requirements Responder: WEC 160. Y Closed Closed N/A - Closed to NA 180 The SRP, BTP 7-14, Section B.3.3.1 states that Regulatory Guide Responder: WEC 161. Y Closed Closed N/A - Closed to NA a r a a a a a 181 An emphasis is placed on traceability in System Requirements Responder: WEC 162. Y Closed Closed N/A - Closed to NA 182 Characteristics that the SRP states that a Software Requirements Responder: WEC 163. Y Closed Closed N/A - Closed to NA 184 7/15/2010 Responder: WEC 164. Y Closed Closed N/A - Closed to N/A 186 7.7.8 7.7.1.12 7/15/2010 Responder: Perkins/Clark 165. Y Closed Closed EICB RAI No.6 TVA Letter dated 188 By letter dated June 30, 2010, TVA docketed, Tennessee Valley Responder: Clark 166. Y Closed Closed ML101970033, Item TVA Letter dated

(

189 7.6.7 7/20/2010 Responder: Clark 167. Y Closed Closed RAI No. 3 TVA Letter dated S

i

( ( (

190 7.9 FSAR Table 7.1-1 states: Regulatory Guide 1.133, May 1981 Responder: Clark 168. Y Closed Closed RAI No. 4 TVA Letter dated Closed to OI-331.

191 7.9 ( ( NUREG-0800 Chapter 7, Section 7.9, "Data Communication Responder: Jimmie Perkins 169. Y Closed Closed ML10197016, Item TVA Letter dated M M M C S 192 7.5.1.1 7.5.2 The NRC Staff is using SRP (NUREG-0800) Chapter 7 Section Responder: Clark 170. Y Closed Closed Item No. 1 sent to TVA Letter dated EICB RAI ML1028618855 sent to 193 7.5.1.1 7.5.2 a a a The WBU2 FSAR, Section 7.5.2, Plant Computer System, Responder: Clark 171. Y Closed Closed Item No. 2 sent to TVA Letter dated EICB RAI ML1028618855 sent to a i 194 7.5.1.1 7.5.2.1 The WBU2 FSAR Section 7.5.2.1, Safety Parameter Display Responder: Costley/Norman 172. Y Closed Closed Item No. 3 sent to TVA Letter dated EICB RAI ML1028618855 sent to

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

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

( ( 173. Y 195 7.5.1.1 7.5.2.2 M M Bypassed and Inoperable Status Indication (BISI) Responder: Costley/Norman Closed Closed Item No. 4 sent to TVA Letter dated EICB RAI ML1028618855 sent to a a 174. Y 196 7.5.1.1 7.5.2.2 Bypassed and Inoperable Status Indication (BISI) Responder: Costley/Norman Closed Closed Item No. 5 sent to TVA Letter dated EICB RAI ML1028618855 sent to 197 ( ( Open Item 197 was never issued. 175. Y Closed Closed 198 7.5.1.1 7.5.2.2 M M X SRP Section 7.5, Subsection III, Review Procedures states: Responder: Costley/Norman 176. Y Closed Closed Item No. 6 sent to TVA Letter dated EICB RAI ML1028618855 sent to a a 177. Y 199 7.5.1.1 7.5.2.3 The WBU2 FSAR Section 7.5.2.3, Technical Support Center and Responder: Costley/Norman Closed Closed Item No. 7 sent to TVA Letter dated Related SE Section 7.5.5.3 EICB RAI 200 7.2 7/21/2010 Responder: Clark 178. Y Closed Closed EICB RAI TVA Letter dated

( ( ( ( ( (

201 7.7.1.1 7.7.11 7/21/2010 Responder: Webb 179. Y Closed Closed EICB RAI TVA Letter dated 203 7.5.1.1 7.5.2 7/26/2010 Responder: Clark 180. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL

( ( ( (

204 7.5.1.1 7.5.2 7/26/2010 Responder: Costley/Norman 181. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL M M M M ( M M 205 7/26/2010 Responder: Clark 182. Y Closed Closed EICB RAI TVA Letter dated Question B related to prior NRC 206 7.5.1.1 7.5.2 7/27/2010 Responder: Clark 183. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL C C C C 207 July 27, 2010 Date: 184. Y Closed Closed a a a a G a a 208 7.5.2.1 7.5.1 7/27/2010 Responder: Clark 185. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 209 7.5.2.1 7.5.1 7/27/2010 Responder: Clark 186. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL a a a a 210 7.5.2.1 7.5.1 7/27/2010 Responder: Clark 187. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 211 7.5.1.1 7/27/2010 Responder: Clark 188. Y Closed Closed EICB RAI TVA Letter dated Relates to SE Sections:

214 7/27/2010 Responder: WEC 189. Y Closed Closed EICB RAI TVA Letter dated

( ( (

215 7/29/2010 Responder: WEC 190. Y Closed Closed 216 7.5.1.1 7.5.2 7/29/2010 Responder: Clark 191. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 217 7/6/2010 Responder: Clark 192. Y Close Closed EICB RAI TVA Letter dated

( ( ( ( (

218 7/6/2010 Responder: Clark 193. Y Closed Closed EICB RAI TVA Letter dated 219 8/4/2010 Responder: TVA Licensing 194. Y Closed Closed EICB RAI

( ( ( M ( ( M ( ( ( ( M 220 8/4/2010 Responder: Ayala 195. Y Closed Closed EICB RAI TVA Letter dated 221 7.7.1.2 7.7.1.3 8/4/2010 Responder: Trelease 196. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 222 8/4/2010 Responder: Clark 197. Y Close Closed EICB RAI TVA Letter dated C C C C P 223 8/4/2010 Responder: Clark 198. Y Closed Closed EICB RAI 224 7.5.1.1 7.5.2 8/4/2010 Responder: Norman (TVA CEG) 199. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL G G G a G G a G G G G a 225 8/4/2010 Responder: Scansen 200. Y Close Closed EICB RAI TVA Letter dated 226 8/4/2010 Responder: TVA Licensing 201. Y Closed Closed N/A - Information TVA Letter dated See also Open Item Nos. 41 & 270.

a a a a o 227 8/4/2010 Responder: Clark 202. Y Close Closed EICB RAI TVA Letter dated 228 8/4/2010 Responder: Clark 203. Y Closed Closed EICB RAI TVA Letter dated 229 8/4/2010 Responder: Clark 204. Y Closed Closed EICB RAI TVA Letter dated 230 8/4/2010 Responder: Webb 205. Y Closed Closed EICB RAI TVA Letter dated 231 8/4/2010 Responder: Clark 206. Y Closed Closed EICB RAI TVA Letter dated

( ( ( ( ( (

232 8/4/2010 Responder: Clark 207. Y Closed Closed RAI No. 5 TVA Letter dated 233 8/4/2010 Responder: Clark 208. Y Closed Closed EICB RAI TVA Letter dated

( ( (

234 8/4/2010 Responder: 209. Y Closed Closed N/A - Duplicate N/A C C C C C S 235 8/4/2010 Responder: TVA Licensing 210. Y Closed Closed N/A N/A 236 8/4/2010 Responder: Clark 211. Y Close Closed EICB RAI TVA Letter dated G G G 237 8/4/2010 Responder: Clark 212. Y Closed Closed EICB RAI TVA Letter dated a a a a a i 238 8/4/2010 Responder: Webb/Hilmes 213. Y Closed Closed N/A - Duplicate N/A 239 8/4/2010 Responder: Hilmes 214. Y Closed Closed N/A - Meeting N/A 240 8/4/2010 Responder: Clark 215. Y Close Closed Ml102910008 TVA Letter dated

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

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

( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( (

241 8/4/2010 Responder: Davies 216. Y Closed Closed RAI No. 10 TVA Letter dated 242 8/4/2010 Responder: Hilmes 217. Y Close Closed EICB RAI TVA Letter dated 243 8/3/2010 Responder: WEC 218. Y Closed Closed N/A - Closed to N/A 247 8/8/2010 Responder: WEC 219. Y Closed Closed EICB RAI Response is LIC-101 Rev. 3 Appendix B Section 4,

(

248 8/8/2010 Responder: WEC 220. Y Closed Closed Response is LIC-101 Rev. 3 Appendix B Section 4, 249 8/8/2010 Responder: WEC 221. Y Closed Closed LIC-101 Rev. 3 Appendix B Section 4, 253 8/8/2010 Responder: Clark 222. Y Closed Closed TVA Letter dated Related to Open Item no. 83.

C C C C C C C C C C C C C C C C C C C S 254 8/10/2010 Responder: WEC 223. Y Closed Closed N/A - Request to TVA Letter dated 255 8/10/2010 Responder: WEC 224. Y Closed Closed N/A - Request to TVA Letter dated 256 8/10/2010 Responder: WEC 225. Y Closed Closed N/A - Request to TVA Letter dated 257 8/10/2010 Responder: WEC 226. Y Closed Closed N/A - Request to N/A G

258 8/10/2010 Responder: WEC 227. Y Closed Closed N/A - Request to N/A 259 8/10/2010 Responder: WEC 228. Y Closed Closed N/A - Request to TVA Letter dated 260 8/10/2010 Responder: WEC 229. Y Closed Closed N/A - Request to N/A a a a a a a a a a a a a a a a a a a a i 261 8/10/2010 Responder: WEC 230. Y Closed Closed N/A - Closed to TVA Letter dated LIC-110 Rev. 1 Section 6.2.2 states:

262 8/10/2010 Responder: WEC 231. Y Closed Closed N/A - Request to N/A 263 8/11/2010 Responder: WEC 232. Y Closed Closed ML101650255, Item 264 8/11/2010 Responder: WEC 233. Y Closed Closed ML101650255, Item 265 8/11/2010 Responder: WEC 234. Y Closed Closed ML101650255, Item 266 8/11/2010 Responder: Webb/Webber 235. Y Closed Closed TVA Letter dated 267 8/11/2010 Responder: WEC 236. Y Closed Closed

( (

269 8/20/2010 Responder: NRC 237. Y Closed Closed N/A N/A 270 ( ( ( 8/23/2010 Responder: Clark 238. Y Closed Closed See also Open Item Nod. 41 & 245.

M M C C P 271 8/23/2010 Responder: WEC 239. Y Closed Closed N/A - Closed to NA 272 7.5.2.1 7.5.1 a a 8/26/2010 Responder: Clark 240. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL a a o 273 7.5.2.1 7.5.1 8/26/2010 Responder: Clark 241. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 274.b ( ( 8/26/2010 Responder: Stockton 242. Y Closed Closed RAI No. 6 TVA Letter dated M S a i 274.a 7.5.2.1 7.5.1 8/26/2010 Responder: Clark 243. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL

(

275 8/27/2010 Responder: Clark 244. Y Closed Closed Not Required N/A 277 7.6 7.6.3 8/27/2010 Responder: Clark 245. Y Close Closed EICB RAI TVA Letter dated D (

278 7.6 7.6.6 8/27/2010 Responder: Trelease 246. Y Close Closed EICB RAI TVA Letter dated

( ( ( ( ( (

279 7.6 7.6.6 8/27/2010 Responder: Mather 247. Y Close Closed EICB RAI TVA Letter dated a S 280 7.6 7.6.6 8/27/2010 Responder: Trelease 248. Y Closed Closed EICB RAI TVA Letter dated G G G G G G 281 7.6 7.6.8 8/27/2010 Responder: Webb 249. Y Closed Closed EICB RAI TVA Letter dated r i 282 7.6 7.6.9 8/27/2010 Responder: Trelease 250. Y Close Closed EICB RAI TVA Letter dated 283 7.7.5 XX 8/27/2010 Responder: Clark 251. Y Closed Closed EICB RAI No.13 TVA Letter dated This item is a follow-up question to item

(

284 7.7.3 7.4.1 8/27/2010 Responder: Webber 252. Y Closed Closed EICB RAI No.14 TVA Letter dated This item is a follow-up question to item D

a r

(

285 7.3.3 7.3 8/27/2010 Responder: McNeil 253. Y Closed Closed EICB RAI No.15 TVA Letter dated This item is a follow-up question to item D

a r

(

286 7.7.3 9.3.4.2. 8/27/2010 Responder: Webber 254. Y Closed Closed EICB RAI No.16 TVA Letter dated D

a r

( 255. Y 287 7.3 7.3-1 ( D 8/27/2010 Responder: Elton Closed Closed ML102390538, Item Response G a r 256. Y 288 7.3 9/2/2010 Responder: McNeil Closed Closed EICB RAI 289 ( ( 9/2/2010 Responder: Faulkner 257. Y Closed Closed RAI No. 24 TVA Letter dated C S a i 258. Y 290 7.7 9/7/2010 Responder: Clark 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) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 291 7.7 ( 9/7/2010 Responder: Clark 259. Y Closed Closed TVA Letter dated

(

292 7.2.5 7.2 D ( 9/7/2010 Responder: Craig 260. Y Closed Closed EICB RAI TVA Letter dated M (

293 7.7.4 7.2.2.3. a C 9/8/2010 Responder: Craig 261. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL a G r a 262. Y 294 7.3 7.3.1.1. 9/9/2010 Responder: Elton Closed Closed ML102390538, Item Response

(

295 7.3 7.3.1.1. 9/9/2010 Responder: Elton 263. Y Closed Closed ML102390538, Item Response D

a r

(

296 7.3 7.3.1.2. 9/9/2010 Responder: Elton 264. Y Closed Closed ML102390538, Item Response D

a r

297 7.3 7.3.1.2. ( ( 9/9/2010 Responder: Elton 265. Y Closed Closed ML102390538, Item Response

( D D 298 7.3 XX C a a 9/9/2010 Responder: Clark 266. Y Closed Closed ML102390538, Item Response a r r 267. Y 299 Provide Common Q Software Requirements Specification Post Attachment 41 of the 10/5 letter contains the Common Q Closed Closed TVA Letter dated

(

300 Need Radiation Monitoring System Description/Design Criteria Responder: Temples/Mather 268. Y Closed Closed RAI No. 25 TVA Letter

( ( ( (

302 7.5.2.1 7.5.1 09/17/2010 Responder: Tindell 269. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL D (

303 7.5.2.1 7.5.1 09/17/2010 Responder: Tindell 270. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 304 7.5.2.1 7.5.1 ( M M M M 09/17/2010 Responder: Tindell 271. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL a S G a a a a 305 7.5.2.1 7.5.1 09/17/2010 Responder: Tindell 272. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL r i 312 7.0 By letter dated September 10,2010, TVA provided the summary Responder: Stockton 273. Y Close Closed EICB RAI TVA Letter dated 313 7.7.8 7.7.1.12 EDCR 52408 (installation of AMSAC in Unit 2) states that Design Responder: Ayala 274. Y Closed Closed EICB RAI No.18 TVA Letter dated

( 275. Y 314 7.3 7.3 ( D The following 50.59 changes were listed in the March 12 RAI Responder: Stockton Closed Closed EICB RAI No. 19 TVA Letter dated Related to OI 10 G a r 276. Y 315 7.5.3 7.5.3 IE Bulletin 79-27 required that emergency operating procedures to Responder: S. Smith (TVA Operations) Close Closed EICB RAI TVA Letter dated

(

316 7.5.2.3 7.5 TVA has provided various documents in support of RM-1000 high Responder: Temples/Mather 277. Y Closed Closed RAI No. 26 S

i

(

317 7.5.2.3 7.5 TVA has provided a proprietary and a non-proprietary version of Responder: Temples 278. Y Closed Closed RAI No. 27 TVA Letter dated S

i

(

319 7.5.2.3 7.5 TVA provided System Verification Test Results 04507007-1TR Responder: Temples 279. Y Closed Closed RAI No. 29 TVA Letter dated S

i E

320 I Per Westinghouse letter WBT-D-2340, TENNESSEE VALLEY Responder: Clark 280. Y Closed Closed N/A N/A Duplicate of item 156 321 B For the purposes of measuring reactor coolant flow for Reactor Responder: Clark 281. Y Closed Closed N/A N/A Duplicate of OI# 157

(

322 7.7.1.11 ( ( E Section 7.7.1.11 will be added to FSAR Amendment 101 to provide Responder: Clark 282. Y Closed Closed M

324 G C I Per the NRC reviewer, the BISI calculation is not required to be 283. Y Closed Closed a

a a 284. Y 325 The Unit 2 loops in service for Unit 1 that are scheduled to be Responder: TVA Startup Olson Closed Closed Closed to open item ?

328 7.5.2.3 7.5 ( Provide the model number for the four containment high range Responder: Temples 285. Y Closed Closed RAI No. 30 TVA Letter dated

( (

330 7.3 7.3 D ( Related to Item 298 Responder: Hilmes/Faulkner 286. Y Closed Closed EICB RAI No.20 Item 7, TVA letter M M 332 7.5.2.1 7.5.1 a S 10/26/2010 287. Y Closed Closed ML103000105 Item TBD EICB RAI ML103000105 sent to DORL a a r i 288. Y 333 7.5.2.1 7.5.1 10/27/2010 Closed Closed ML103000105 Item TBD EICB RAI ML103000105 sent to DORL

(

336 7.5.2.3 7.5 Re: RM-1000 Report 04508905-QR Responder: GA 289. Y Closed Closed S

i

(

337 7.5.2.3 7.5 Re: RM-1000 Report 04508905-QR Responder: GA 290. Y Closed Closed S

i 041 7.5.2 7.5.1 2/19/2010 Responder: WEC 1. N Open Open-NRC Review NRC Meeting TVA Letter dated See also Open Item Nos. 226 & 270.

EICB (Carte)

Summary NRC 6/18/10 Please provide the following Westinghouse documents: Items (1) and (2) were docketed by TVA letter dated April 8, Final Response included in Due: Meeting Summary (1) WNA-DS-01617-WBT Rev. 1, "PAMS System Requirements 2010. letter dated 12/3/10 (3) 12/3/10 ML093560019, Item TVA Letter dated Specification" (4) 12/10/10 No. 11 10/5/10 (2) WNA-DS-01667-WBT Rev. 0, "PAMS System Design Item (3) will be addressed by Revision 2 of the Licensing Specification" Technical Report. Due 12/3/10 Partial Response is included in TVA to docket (3) WNA-CD-00018-GEN Rev. 3, "CGD for QNX version 4.5g" letter dated 10/5/10. information indentified Please provide the following Westinghouse documents or pointers Item (4) will be addressed by Westinghouse developing a The SysRS and SRS in ISG6.

to where the material was reviewed and approved in the CQ TR or WBN2 Specific Test Plan to compensate for the fact that the incorporate requirements from SPM: NRC disapproved WNA-PT-00058-GEN during the original many other documents by (4) WNA-PT-00058-GEN Rev. 0, "Testing Process for Common Q Common Q review. Due 12/7/10 reference.

Safety systems" (5) WNA-TP-00357-GEN Rev. 4, "Element Software Test Item (5) Procedures that are listed in the SPM compliance NNC 8/25/10: (3) An earlier

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Procedure" table in the Licensing Technical Report revision 1 supersede version of this report was that test procedure WNA-TP-00357-GEN.Due 10/22/10 docketed for the Common Q topical report; therefore, there For Item 3, Attachment 19 contains the Westinghouse should be no problem to docket document Post-Accident Monitoring System (PAMS) this version. (4) Per Licensing Technical Report, WNA-LI-00058-WBT, Revision ML091560352, the testing 2, dated December 2010. Attachment 20 contains the process document does not Westinghouse Application for Withholding for the Post- address the test plan Accident Monitoring System (PAMS) Licensing Technical requirements of the SPM.

Report, WNA-LI-00058-WBT, Revision 2, dated December Please provide a test plan that 2010. implements the requirements of the SPM.

For Item 4, Attachment 9 contains the Westinghouse document Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System Test Plan, WNA-PT-00138-WBT, Revision 0, dated November 2010. Attachment 10 contains the Westinghouse Application for Withholding for the WNA-PT-00138-WBT, Revision 0 Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System Test Plan, WNA-PT-00138-WBT, Revision 0, dated November 17, 2010.

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

ML102910002 2/5/10 compliance matrix was docketed on: (1)

The PAMS ISG6 compliance matrix supplied as Enclosure 1 to The PAMS ISG6 compliance matrix supplied as Enclosure 1 Revised response included in Due 12/1/10 Item No. 2 February, 5 12010, (2) March 12, 2010, TVA letter dated February 5, 2010 is a first draft of the information to TVA letter dated February 5, 2010 is a first draft of the letter dated 12/22/10. TVA Letter dated & (3) June 18, 2010. The staff has needed. The shortcomings of the first three lines in the matrix are: information needed. 5/12/10 expressed issued with all of these compliance evaluations. The staff is still Line 1: Section 11 of the Common Q topical report did include a By letter dated April 8, 2010 TVA provided the PAMS Response is included in letter TVA Letter dated waiting for a good compliance commercial grade dedication program, but this program was not Licensing Technical Report provided additional information. dated 10/5/10. 6/18/10 evaluation.

approved in the associated SE. Westinghouse stated that this was the program and it could now be reviewed. The NRC stated that Attachment 3 contains the revised Common Q PAMS ISG-6 Revised compliance matrix is TVA Letter dated NNC 11/23/10: WNA-LI-00058-WT-P TVA should identified what they believe was previously reviewed Compliance Matrix, dated June 11, 2010, that addresses unacceptable. 10/5/10 Rev. 1 Section 7 does not include the and approved. these items (Reference 13). RSED documents, and it should. Table NNC 8/12/10: It is not quite 6-1 Item No. 15 should also include the Line 2: TVA stated the D3 analysis was not applicable to PAMS, By letter Dated June 18, 2010 (see Attachment 3) TVA enough to provide all of the RSED RTMs.

but provided no justification. The NRC asked for justification since provided a table, "Watts Bar 2 - Common Q PAMS ISG-6 documents requested. There SRP Chapter 7.5 identified SRM to SECV-93-087 Item II.Q as Compliance Matrix." are two possible routes to being SRP acceptance criteria for PAMS. review that the NRC can It is TVAs understanding that this comment is focused on undertake: (1) follow ISG6, and Line 3: TVA identified that the Design report for computer integrity the fact that there are documents that NRC has requested (2) follow the CQ SPM. The was completed as part of the common Q topical report. The NRC that are currently listed as being available for audit at the TVA response that was noted that this report is applicable for a system in a plant, and the Westinghouse offices. For those Common Q PAMS originally pursued was to follow CQ topical report did no specifically address this PAMS system at documents that are TVA deliverable documents from ISG6, but some of the Watts Bar Unit 2. Westinghouse, TVA has agreed to provide those to NRC. compliance items for ISG6 were Westinghouse documents that are not deliverable to TVA will addressed by referencing the NRC then concluded that TVA should go through and provide a be available for audit as stated above. Requirements SPM. The NRC approved the more complete and thorough compliance matrix. Traceability Matrix issues will be tracked under NRC RAI CQ TR and associated SPM; it Matrix Items 142 (Software Requirements Specification) and may be more appropriate to 145 (System Design Specification). Commercial Item review the WBN2 PAMS Dedication issues will be tracked under NRC RAI Matrix application to for adherence to Item 138. This item is considered closed. the SPM that to ISG6. In either path chosen, the applicant TVA Response to Follow-up NRC Request: should provide documents and a justification for the acceptability WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring of any deviation from the path System (PAMS) Licensing Technical Report submitted in chosen. For example, it TVA Letter to NRC dated December 3, 2010, (Reference 1) appears that the

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N contains the following changes to address the NRC Westinghouse's CDIs are requests: commercial grade dedication plans, but Westinghouse (1) While RSEDs are not specifically mentioned, Section 7 maintains that they are has been revised to be applicable to both hardware and commercial grade dedication software which includes the RSEDs. reports; this apparent deviation (2) Table 6-1 item 15 reference added for WNA-VR-00280- should be justified or explained.

WBT (RESD) 050 7.5.2 7.5.1 4/8/2010 Responder: WEC Date: 5/25/10 3. N Open Open-NRC Review EICB RAI TVA Letter dated NNC 11/18/10: SysRS Rev. 2 contains EICB (Carte)

ML102910002 6/18/10 several Reference 8, however, How should the "shall" statements outside of the bracketed These sections are descriptive text and not requirements. Revised response included in Due12/22/10 Item No. 8 Reference 8 has been deleted.

requirements in Common Q requirements documents be The next revision of the Watts Bar Unit 2 PAMS System letter dated 12/22/10. Discuss at 11/22 phone TVA Letter dated interpreted? Requirements Specification will remove shall from the call. 10/29/10 wording in those sections. A date for completing the next Enclosure 1 Item revision of the System Requirements Specification will be TVA response is inconsistent This will be corrected in No. 1 provided no later than August 31, 2010. (e.g., WNA-DS-01667-WBT the Revision 3 Rev. 1 page 1-1, Section 1.3.1 document due to TVA The System Requirements Specification will be revised by implies that "SysRS Section 12/10/10 September 30, 2010 and submitted within two of receipt from ###" has requirements. See Westinghouse. also SDS4.4.2.1-1 on page 4-32).

TVA Revised Response Is there a requirement on the Shall statements within the scope of the System shall referenced above??

Requirements Specification (SysRS) and System Design Specification (SysDS) were reviewed by Westinghouse. The Response is provided in letter statements were either relocated to the numbered dated 10/29/10.

requirements section or the wording was changed to identify that it was not a requirement. This item is resolved by TVA Revised Response in TVA submittal of revision 2 of the SysRS and the SysDS Letter dated 10/29/10 Enclosure (attachments 7 and 8 of TVA Letter to NRC dated 10/25/10). 1 Item No. 1 is Acceptable TVA Response to Follow-up NRC Request: NNC 11/18/10: Revised Response is not a statement of This item is corrected in the revision 3 requirements fact. SysRS Rev. 2 (i.e., WNA-documents. DS-01617-WBT Rev. 2) contains many shalls that are Attachment 1 contains the proprietary version of WNA-DS- not within numbered 01617-WBT-P, Revision 3, Post Accident Monitoring requirements sections, for System- System Requirements Specification, dated example:

November 2010. Attachment 2 contains the non-proprietary (1) Page 2-1, Section 2.3.1 -

version WNA-DS-01617-WBT-NP, Revision 3, Post See guidance statement Accident Monitoring System - System Requirements (2) Page 2-10, top of page 1 -

Specification, dated December 2010. Attachment 3 See guidance statement contains the Application for Withholding Proprietary Information from Public Disclosure, WNA-DS-01617-WBT-P, Revision 3, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System - System Requirements Specification (Proprietary),

dated December 6, 2010.

Attachment 4 contains the proprietary version of WNA-DS-01667-WBT-P, Revision 3, Post Accident Monitoring System - System Design Specification, dated November 2010. Attachment 5 contains the non-proprietary version WNA-DS-01667-WBT-NP, Revision 3, Post Accident Monitoring System - System Design Specification, dated December 2010. Attachment 6 contains the Application for

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Withholding Proprietary Information from Public Disclosure, WNA-DS-01667-WBT-P, Revision 3, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects Post Accident Monitoring System - System Design Specification (Proprietary), dated December 6, 2010.

Attachment 7 contains the proprietary version of WNA-SD-00239-WBT-P, Revision 3, Software Requirements Specification for the Post Accident Monitoring System, dated November 2010. Attachment 8 contains the non-proprietary version WWNA-SD-00239-WBT-NP, Revision 3, Software Requirements Specification for the Post Accident Monitoring System, dated December 2010. Attachment 9 contains the Application for Withholding Proprietary Information from Public Disclosure, WNA-SD-00239-WBT-P, Revision 3, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Software Requirements Specification for the Post Accident Monitoring System (Proprietary), dated December 8, 2010.

067 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 4. N Open Open-NRC Review N/A - No question TVA Letter dated EICB (Carte) date for the "Commercial Grade Dedication Instructions for AI687, was asked. Item 6/18/10 AI688, Upgraded PC node box and flat panels." was September The following status is from the revised WB2 Common Q Response included in letter Due 12/3/10 was opened to track 28, 2010. PAMS ISG-6 Compliance Matrix submitted in response to dated 12/22/10. comm8ittment Item 43: made by applicant.

This item is addressed in Rev. 2

a. AI687, AI688 - Scheduled for September 28, 2010 of the Licensing Technical Report

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 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 TVA Response to Follow-up NRC Request:

WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) contains the following change to address the NRC request:

Section 7, Commercial Grade Dedication Process, has been revised to describe the general commercial grade dedication process for both hardware and software and uses a description of the AI687 dedication process as an example of how the process is applied.

068 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 5. N Open Open-NRC Review N/A - No question TVA Letter dated EICB (Carte) date for the "Summary Report on acceptance of AI687, AI688, was asked. Item 6/18/10 Upgraded PC node box, flat panels, and power supplies." was The following status is from the revised WB2 Common Q Response included in letter Due 12/3/10 was opened to track September 28, 2010. PAMS ISG-6 Compliance Matrix submitted in response to dated 12/22/10. comm8ittment Item 43: made by applicant.

a. AI687, AI688 - Scheduled for September 28, 2010 This item is addressed in Rev. 2 of the Licensing Technical

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Response

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

b. Upgraded PC node box - Per Westinghouse letter WBT- Report 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 TVA Response to Follow-up NRC Request:

For the commercial grade dedication process, please see the response to Request for Additional Information (RAI) item 3 in this letter, NRC Matrix Item 067.

The component level EQ/Seismic summary reports for the hardware listed above are available for NRC review/audit as described below:

(1) AI687 and AI688, the following documents were submitted in TVA Letter to NRC dated October 26, 2010, Watts Bar Nuclear Plant (WBN) Unit 2 -

Instrumentation and Controls Staff Information Requests, (Reference 5):

a. EQ-EV-62-WBT, Revision 0, Common Q PAMS Comparison of Tested Conditions for the AI687 and AI688 Common Q Modules and Supporting Components to the Watts Bar Unit 2 (WBT)

Requirements, dated September 10, 2010

b. EQLR-171, Revision 0, Environmental and Seismic Test Report, Analog Input (AI)687 &

AI688 Modules for use in Common Q PAMS, dated September 10, 2010

c. CN-EQT-10-44, Revision 0, Dynamic Similarity Analysis for the Watts Bar Unit 2 Post Accident Monitoring System (PAMS), dated September 28, 2010 (2) Upgraded PC Node Box - As stated in Westinghouse letter WBT-D-2024, dated June 9, 2010 NRC Access to Common Q Documents at the Westinghouse Rockville Office, (Reference 6), the following documents are available for NRC audit at the Westinghouse Rockville office:

a. CDI-3722, Revision 7, Next Generation PC Node Box Commercial Dedication Instruction

b. LTR-EQ-10-50 PC Node Box/Flat Panel Display System Components Qualification Summary (3) Flat Panel Displays - As stated in Westinghouse letter WBT-D-2024, dated June 9, 2010 NRC Access to Common Q Documents at the Westinghouse Rockville Office, (Reference 6), the following documents are available for NRC audit at the Westinghouse Rockville

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N office:

a. CDI-3803, Revision 8, Next Generation Flat Panel Display (FPD) Commercial Dedication Instruction

b. LTR-EQ-10-50 PC Node Box/Flat Panel Display System Components Qualification Summary (4) Power supplies - As stated in Westinghouse letter WBT-D-2035 dated June 11, 2010 NRC Access to Common Q Documents at the Westinghouse Rockville Office (Reference 7), the following documents are available for NRC audit at the Westinghouse Rockville office:

a. CDI- 4057, Revision 4, Commercial Dedication Instruction

b. EQ-TP-1 05-GEN, Revision 0, Electromagnetic Compatibility Test Plan and Procedure for Quint Power Supplies and Safety System Line Filter

c. Breakers, EQ-TP-114-GEN, Revision 0, Seismic Qualification Test Procedure For Common Q Power Supplies, Quint Power Supplies, Line Filter Assemblies, and South Texas Units 3 & 4 Circuit

d. EQ-TP-117-GEN, Revision 0, Environmental Qualification Test Procedure For Common Q Powe Supplies, Quint Power Supplies, and Line Filter Assemblies 070 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 6. N Open Open-NRC Review N/A - No question TVA Letter dated NNC 11/23/10: The dues date in this EICB (Carte) date for the "Concept and Definition Phase V&V Report" was was asked. Item 6/18/10 open item does not agree with the due March 31, 2010. Per Westinghouse letter WBT-D-1961, this document is Final Response included in Due 12/17/10 was opened to track dated in Open Item No. 71.

available for audit at the Westinghouse Rockville office. letter dated 12/3/10 comm8ittment TVA Letter dated made by applicant. 8/20/10 WNA-VR- 00283-WBT, Rev 0 was submitted on TVA letter Partial Response is included in to the NRC dated August 20, 2010. letter dated 10/5/10. TVA Letter dated 10/5/10 The submitted V&V did not address the Requirements Regulations require that the Traceability Matrix and did not summarize anomalies. At the NRC review be based on September 15th public meeting, Westinghouse agreed to docketed material. Awaiting for include the Concept and Definitions Phase Requirements document to be docketed by Traceability Matrix (RTM) in the next IV&V report along with TVA.

partial Design Phase updates to the RTM.

NNC 8/25/10: Requirements TVA Revised Response: Phase SVVR provided by TVA TVA submitted WNA-VR- 00283-WBT, Rev 0 to NRC in letter dated 8/20/10.

letter dated August 20, 2010 (Reference 6). NNC 11/23/10: The The next Independent Verification and Validation (IV&V) requirements Phase SVVR report will include the Design provided by TVA on 8/20/10, is Phase Requirements Traceability Matrix. The Design Phase not complete. This report IV&V Report will be submitted should address the RTM, which to NRC by February 11, 2011. it did not. TVA/WEC agreed to address the concept phase RTM Attachment 14contains the Westinghouse document in the next revision.

Nuclear Automation Watts Bar Unit 2 NSSS Completion Program I&C Projects, IV&V Summary Report for the Post Accident Monitoring System, WNA-VR-00283-WBT, Revision 1, dated November 2010. Attachment 15 contains the Westinghouse Application for Withholding for the WNA-VR-00283-WBT, Revision 1, Nuclear Automation Watts Bar Unit 2 NSSS Completion Program I&C Projects, IV&V

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Summary Report for the Post Accident Monitoring System, dated November 8, 2010.

NOTE: Due to document sequencing, this IV&V Phase Summary Report references a previous version of the contract compliance matrix. Refer to the Licensing Technical Report Revision 2 (Attachment

19) for the current contract compliance matrix.

071 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 7. N Open Open-NRC Review N/A - No question N/A NNC 11/23/10: The dues date in this EICB (Carte) date for Revision 2 of the I V&V Report" covering the Design and was asked. Item open item does not agree with the due Implementation phases was July 30, 2010. Attachment 16 contains the Westinghouse document IV&V Response included in letter Due 12/10/10 was opened to track dated in Open Item No. 70.

Summary Report for the Post Accident Monitoring System, dated 12/3/10 commitment made WNA-VR-00283-WBT, Revision 2, dated November 2010. by applicant.

Attachment 17 contains the Westinghouse Application for Awaiting for document to be withholding for the IV&V Summary Report for the Post docketed by TVA.

Accident Monitoring System, WNA-VR-00283-WBT, Revision 2, dated November 2010.

NOTE: Due to document sequencing, this IV&V Phase Summary Report references a previous version of the contract compliance matrix. Refer to the Licensing Technical Report Revision 2 (Attachment

19) for the current contract compliance matrix.

073 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 8. N Open Open-NRC Review N/A - No question N/A EICB (Carte) date for Revision 3 of the IV&V Report covering the Integration was asked. Item phase was October 29, 2010. WNA-VR-00283-WBT, Revision 3, IV&V Summary Report Response included in letter Due 12/22/10 was opened to track for the Post Accident Monitoring System, covers the dated 12/22/10 commitment made Integration phase. Attachment 10 contains the proprietary by applicant.

version of IV&V Summary Report for the Post Accident Awaiting for document to be Monitoring System, WNA-VR-00283-WBT-P, Revision 3, docketed by TVA.

dated December 2010. Attachment 11 contains the non-proprietary version IV&V Summary Report for the Post Accident Monitoring System, WNA-VR-00283-WBT-NP, Revision 3, dated December 2010. Attachment 12 contains the Application For Withholding Proprietary Information From Public Disclosure WNA-VR-00283-WBT, Revision 3, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, IV &V Summary Report for the Post Accident Monitoring System (Proprietary), dated December 10, 2010.

075 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 9. N Open Open-NRC Review N/A - No question N/A EICB (Carte) date for the "Watts Bar 2 PAMS Specific FAT Procedure" was was asked. Item September 30, 2010. Attachment 12 contains the Westinghouse document Response included in letter Due 12/3/10 was opened to track Nuclear Automation Watts Bar Unit 2 NSSS Completion dated 12/3/10 commitment made Program I&C Projects, Post Accident Monitoring System by applicant.

Channel Integration Test/Factory Acceptance Test, WNA- Awaiting for document to be TP-02988-WBT, Revision 0, dated November 2010. docketed by TVA.

Attachment 13 contains the Westinghouse Application for Withholding for WNA-TP-02988-WBT, Revision 0,Nuclear Automation Watts Bar Unit 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System Channel Integration Test/Factory Acceptance Test, dated November 2010.

082 7.5.2 7.5.1 5/6/2010 Responder: WEC Date: 6/18/10 10. N Open Open-NRC Review EICB RAI TVA Letter dated NNC 11/18/10: See also Open Item No.

EICB ML102910002 7/30/10 41, Item No. 3.

(Carte) The PAMS Licensing Technical Report (WNA-LI-00058-WBT Rev. These components can be found in the Summary Revised response included in Due 12/3/10 Item No. 10 0, Dated April 2010), in Section 2.3, lists hardware/software Qualification Report Of Hardware Testing For Common Q letter dated 12/22/10

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N changes to the Common Q PAMS previously reviewed by the Applications, 00000-ICE-37764, Rev 3 and Commercial Grade NRC. However the Common Q ISG-6 Compliance Matrix does not TWICE Qualification Status Report, WNAQR-00011-SSP Regulations require that the Dedication to be contain activities that address qualification of all changes Per Westinghouse letter WBT-D-2024, (Reference __) dated NRC review be based on addressed in LTR Rev.

specifically: June 9, 2010, these documents are available for audit at the docketed material. Awaiting for 2, Westinghouse Rockville Office. document to be docketed by 2.c - CI527 AF100 Peripheral Component Interconnect (PCI) TVA.

interface card TVA provided information by letter dated July 30, 2010

3. - Common Q TC514 AF100 Fiber Optic Modems (Evolutionary (ML102160349) - See Enclosure 1 Item No. 7. NNC 8/9/10: per telephone Product Maintenance/Improvements) conversation on 8/5/10, it is not 4.a - PM646A Processor Module Revision 1 of the Licensing Technical Report provides clear how Westinghouse 4.b - CI631 AF100 Communication Interface Module additional detail on the platform specific to WBN2 and Commercial Grade Dedication 4.e - DO620 Digital Output Card references to the evaluation documentation. Plans and Reports for Digital I&C. Westinghouse agree to Please provide sufficient detail regarding the changes for the NRC TVA Response to Follow-up NRC Request: present to the NRC in a public to independently evaluate the acceptability of the changes. meeting on August 17, 2010, Please see the response to Request for Additional and explanation of how their Information (RAI) item 3 in letter dated 12/22/10, NRC Matrix system addresses regulatory Item 067. criteria for both 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.

NNC 11/18/10: During the September 20-21, 2010 audit, TVA agreed to put a description of the commercial grade dedication program and implementation in Rev. 2 of the CQ PAMS LTR.

085 7.5.2 7.5.1 5/6/2010 Responder: WEC 11. N Open Open-NRC Review EICB RAI EICB (Carte)

ML102910002 Please provide a detailed description of the PAMS MTP data link Is the WEC ISG4 evaluation inadequate? Revised response included in Due 12/3/10 Item No. 13 to the plant computer. This description should identify all letter dated 12/22/10 equipment (model & version) and describe the functions that each Operation of the MTP as a barrier device. MTP Fails as a Hardware is in Rev. 1 piece of equipment performs. This description should be of barrier device. Describe what prevents a MTP failure from A response will be provided by of the Licensing sufficient detail for the NRC to independently evaluate the propagating to the AC160? 10/31/10 Technical Report due statements made in WNA-LI-00058-WBT Rev. 0, Section 5.3. 10/22.

Node loss on the bus? Bus loss? NNC 8/11/10: Design information should be available NNC 8/25/10:

Revise the ISG4 section of the Licensing Technical Report now. By letter dated July 30, Disagree with path (Rev. 2) to provide a more detailed description of the MTP as 2010 (ML102160349) TVA forward input by TVA a barrier device. stated that the MTP was above. An explanation connected to a Red Hat Linux is about the design is TVA Response to Follow-up NRC Request: Server (see Enclosure 1, Item needed.

No. 14 part b.). It is presumed WNA-LI-00058-WBT-P, Revision 2, Post-Accident that this server is not safety- FAT test procedure to Monitoring System (PAMS) Licensing Technical Report related. IEEE 603-1991 Clause include data storm submitted in TVA letter to NRC dated December 3, 2010 5.6.3(1) states, "Isolation testing of the MTP (Reference 1), contains the following changes to address the devices used to affect a safety interface NRC requests: system boundary shall be classified as part of the safety NNC 11/18/10: WEC Section 2.2, System Description page 2-3 provides a system." response states that

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N description of the MTP Fiber-Optic (FO) data link to the plant CQ PAMS LTR Rev. 2 computer. Section 2.2.1.4, Hardware has been expanded Please describe how the MTP will contain relevant to include a table detailing all hardware changes that have serves as the isolation device. information.

occurred since the initial submittal. Section 2.2.2, Software has been expanded to include a table detailing all software changes that have occurred since the initial submittal.

101 4/12/2010 Responder: Slifer 12. Y Open Open-NRC Review N/A TVA is working with the vendor to meet DORL (Poole) the 6/30 date, however there is the The non-proprietary versions of the following RM-1000, The documents, and affidavits for withholding for the listed Documents provided in letter Due 10/14/10 potential this will slip to 7/14.

Containment High Range Post Accident Radiation Monitor documents were submitted to the NRC on TVA letter to the dated 07/15/10 documents will be provided by June 30, 2010. NRC dated July 15, 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 117 7.1 7.1 6/3/2010 Responder: Hilmes 13. Y Open Open-NRC Review EICB RAI TVA Letter dated EICB (Garg)

ML102910008 10/29/10 Does TVA use a single sided or double sided methodology for as- Reactor Protection System (RPS) (comprised of Reactor Trip Revised response is included in Pending FSAR Item#21 Enclosure 1 Item found and as-left instrument setpoint values. (RIS2006-7) (RPS) and Engineered Safety Features Actuation System letter dated 10/29/10 Amendment 102 No. 7 (ESFAS)) setpoint values are monitored by periodic submittal performance of surveillance tests in accordance with Technical Specification requirements. TVA uses double- Due 12/17/10 sided as-found and as-left tolerances for Reactor Trip and ESFAS trip setpoint surveillance tests as described in FSAR TVA needs to address amendment 100. that trip setpoint and allowable value TVA Revised Response: uncertainties are not reduced by the For TSTF-493 parameters WBN Unit 2 uses only double reduction factor for the sided correction factors. Attachment 3 contains the revised single sided reduction FSAR section 7.1.2.1.9 that will be included in FSAR factor. TVA response Amendment 102 that reflects this change. 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 justifications.

138 By letter dated February 3, 2010, Westinghouse informed TVA that Responder: WEC 14. N Open Open-NRC Review ML101650255, Item EICB (Carte) certain PAMS documentation has been completed. No. 2 This item is used to track all Commercial Grade Revised response included in Due 12/3/10 (a) The draft ISG6 states that a commercial grade dedication plan Dedication issues. letter dated 12/22/10 should be provided with an application for a Tier 2 review. To be addressed by

a. WNA-LI-00058-WT-P, Revision 2, Post-Accident TVA agreed to include a Rev. 2 of the Licensing By letter dated February 5, 2010, TVA stated that the commercial Monitoring System (PAMS) Licensing Technical Report description of the generic Technical Report.

grade dedication plan was included in the Common Q Topical submitted in TVA Letter to NRC dated December 3, Westinghouse hardware Report Section 11, Commercial Grade Dedication Program. 2010, (Reference 1) contains the following changes to commercial grade dedication Section 11 includes a description of the Common Q Commercial address the NRC request: process in the PAMS licensing Grade Dedication Program, and states: A detailed review plan is technical report. (see developed for each Common Q hardware or software component Section 7, Commercial Grade Dedication Process has ML102920031 Item No 1) that requires commercial grade dedication. been revised to describe the general commercial grade dedication process for both hardware and software and TVA agreed to include (in the Please provide the commercial grade dedication plans for each uses a description of the AI687 dedication process as PAMS licensing technical report)

Common Q hardware or software component that has not been an example of how the process is applied. an evaluation of WBN2 critical previously reviewed and approved by the NRC. characteristics for commercial

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N As listed in Table 6-3. Westinghouse Watts Bar 2 Westinghouse hardware (b) The draft ISG6 states that a commercial grade dedication Common Q PAMS Documents at Westinghouse components against the generic report should be provided within 12 months of requested approval Rockville Office, the following commercial grade critical characteristics. (see for a Tier 2 review. dedication documents are available for NRC audit at the ML102920031 Item No 2)

Westinghouse Rockville office: (list included in letter)

(i) Please provide 00000-ICE-37722 Rev. 0, Commercial Grade TVA agreed to include a Dedication Report for the QNX Operating System for Common Q b. It is TVAs understanding that the submittal of the description of the generic Applications. documents listed in (b.i) and (b.ii) is no longer required. Westinghouse software Rather, it was agreed, that the inclusion of a description commercial grade dedication (ii) Please provide WNA-CD-00018-GEN Rev. 3, Commercial of the commercial grade dedication process in revision process in the PAMS licensing Dedication Report for QNX 4.25G for Common Q Applications. 2 of the Post-Accident Monitoring System (PAMS) technical report. (see Licensing Technical Report, WNA-LI-00058-WT-P, ML102920031 Item No 3) would be sufficient to address this request.

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) 140 The first requirement in the WBN2 PAMS SysRS (i.e., R2.2-1) Responder: Clark 15. N Open Open-NRC Review ML101650255, Item TVA Letter dated WBN2 PAMS System Requirements EICB (Carte) states: The PAMS shall be capable of operation during normal No. 4 10/29/10 Specification and abnormal environments and plant operating modes. The WBN Unit 2 FSAR Amendment 100 Section 7.5.1.8, Post Revised response included in Due 12/3/10 Enclosure 1 Item rational for this requirement is that it is necessary to meet Accident Monitoring System (PAMS) specifies the Reg. letter dated 12/22/10 No. 10 TVA docketed WNA-DS-01617-WBT Regulatory Guide (RG) 1.97. Guide 1.97 variables implemented in the Common Q based TVA to docket PAMS Rev. 1, RRAS Watts Bar 2 NSSS WBN Unit 2 PAMS NNC 11/3/10: The origin of the Licensing Technical Completion Program I&C Projects Post What document specifies which RG 1.97 variables are requirements in the SysRS are Report Rev. 2. Accident Monitoring System- System implemented in the Common Q based WBN2 PAMS? TVA Response to Follow-up NRC Request: not clearly document. Rev. 1 of Requirements Specification, dated the Common Q PAMS Licensing December 2009.

WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring Technical Report contains an System (PAMS) Licensing Technical Report was submitted open item that will be addressed in TVA Letter to NRC, dated December 3, 2010 (Reference in Rev. 2; this open item is to 1). Revision 2 contains the following change to address this include TVAs enhanced request: contract compliance matrix. It is expected that this matrix will Section 11, TVA Contract Compliance Matrix has been address this open item.

added. Specifically the items of concern are addressed by Requirements 7 through 19 (pages 11-1 and 11-2).

142 The applicable regulatory guidance for reviewing the WBN2 PAMS Responder: WEC 16. N Open Open-NRC Review ML101650255, Item WBN2 PAMS System Requirements EICB (Carte)

SysRS would be IEEE 830 as endorsed by Regulatory Guide No. 6 Specification 1.172 and BTP 7-14 Section B.3.3.1, Requirements Activities - This item is used to track all traceability issues with the Response included in letter Due 12/22/10 Software Requirements Specifications. IEEE 830-1994 Section Software Requirements Specification (SRS). dated 12/22/10 TVA docketed WNA-DS-01617-WBT 4.3.8, Traceable, states: A [requirements specification] is To be addressed by Rev. 1, RRAS Watts Bar 2 NSSS traceable of the origin of each of its requirements is clear 1. How did TVA ensure the traceability of each TVA/Westinghouse agreed to Revision of the RTM, Completion Program I&C Projects Post requirement in the WBN2 PAMS SysRS. include the V&V evaluation of SRS, SysRS, and Accident Monitoring System- System

1. How did TVA ensure the traceability of each requirement in their reusable software element SysDS. Requirements Specification, dated the WBN2 PAMS SysRS. TVA Response: development process in the December 2009.

V&V design phase summary

2. Explain the source(s) of the requirements present in the Post Traceability of requirements for the WBN Unit 2 report. This evaluation would Accident Monitoring Systems Software Requirements Common Q PAMS is ensured by: include an evaluation against Specification. To clarify, many documents have the development process requirements that are incorporated by reference into the a. Preparation of the TVA Contract Compliance Matrix requirements. This evaluation SRS, but what served to direct the author to include those contained in WNA-LI-00058-WBT-P, Revision 2, would also include an evaluation various documents in the SRS or, if the requirement is based Post-Accident Monitoring System (PAMS) of how the WBN2 specific on the System Requirements Specification, what directed the Licensing Technical Report submitted in TVA requirements were addressed author to include the requirement there? Letter to NRC dated December 3, 2010 (Reference by the reusable software 1). elements. (see ML102920031

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Response

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

3. Clarify whether the unnumbered paragraphs in the Post Item No 5)

Accident Monitoring Systems Software Requirements b. Engineering review/comment/status of each Specification, such as in the section headings, or are all such revision of:

sections simply considered to be informative?

i. WNA-DS-01617-WBT, Post Accident Does the same apply to documents referenced by the SRS? Monitoring System - System Requirements Such as WCAP-16096-NP-A, Rev. 1A, Software Program Specification Manual for Common Q Systems, which is incorporated by reference in requirement R2.3-2 in the SRS. ii. WNA-DS-01667-WBT, Post Accident Monitoring System - System Design R2.3-2 [The PAMS software shall comply with the Specification (hardware) requirements and guidelines defined in WCAP-16096-NP-A, Software Program Manual for Common Q Systems iii. WNA-SD-00239-WBT, Software (reference 5).] Requirements Specification for the Post Accident Monitoring System (software)

If any requirements are expressed in such unnumbered paragraph form instead of individually identified requirements, 2. Explain the source(s) of the requirements present in the please list them, describe why they satisfy the fundamental Post Accident Monitoring Systems Software requirement of unambiguity, and describe how they were Requirements Specification. To clarify, many verified. documents have requirements that are incorporated by reference into the Software Requirements Specification

4. Are there any sources of requirements in parallel with the (SRS), but what served to direct the author to include Post Accident Monitoring Systems Software Requirements those various documents in the SRS or, if the Specification? Meaning does the SRS contain, explicitly or requirement is based on the System Requirements by reference, all the requirements that were used in the Specification, what directed the author to include the design phase for the application specific software, or do requirement there?

software design phase activities use requirements found in any other source or document? If so, what are these TVA Response:

sources or documents?

As documented in the RTM, some software

5. References 12, 27, 29, and 31-44 in the Post Accident requirements are taken from generic documents. The Monitoring Systems Software Requirements Specification decision to include generic software requirements was are various types of Reusable Software Element. to reduce the overall scope for Common Q features that are unchanged across projects. Westinghouse reviewed These references are used in the body of the SRS, for the generic PAMS requirements and included those example: requirements that were applicable to WBN Unit 2 PAMS.

R5.3.14-2 [The Addressable Constants CRC error signal shall be TRUE when any CAL CRC's respective ERROR Source: E-mail from Westinghouse (Matthew A.

terminal = TRUE (WNA-DS-00315-GEN, "Reusable Software Shakun) to Bechtel (Mark S. Clark), RE: December 22 Element Document CRC for Calibration Data" [Reference letter review, dated December 17, 2010 (Reference 13) 12]).]

3. Clarify whether the unnumbered paragraphs in the Post They are also included via tables such as found in Accident Monitoring Systems Software Requirements requirement R7.1.2-1 Specification, such as in the section headings, contain requirements or are all such sections simply considered

[The Watts Bar 2 PAMS shall use the application-specific to be informative?

type circuits and custom PC elements listed in Table 7.1-1.]

Does the same apply to documents referenced by the Do the referenced reusable software element documents include SRS? Such as WCAP-16096-NP-A, Rev. 1A, Software requirements not explicitly stated in the SRS? If so what is their Program Manual for Common Q Systems, which is origin? incorporated by reference in requirement R2.3-2 in the SRS.

R2.3-2 [The PAMS software shall comply with the requirements and guidelines defined in WCAP-16096-NP-A, Software Program Manual for Common Q Systems (reference 5).]

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N If any requirements are expressed in such unnumbered paragraph form instead of individually identified requirements, please list them, describe why they satisfy the fundamental requirement of unambiguity, and describe how they were verified.

TVA Response:

Unnumbered paragraphs in the Post Accident Monitoring Systems Software Requirements Specification, such as in the section headings, are informative and are not to be interpreted as requirements. All requirements are explicitly numbered.

It depends on the document type. The statement would be true for requirements documents (such as the SysRS or SDS) if they were incorporated by reference.

However, for the specific item cited, WCAP-16096-NP-A, Rev. 1A, it does not contain numbered requirements.

The requirements contained in this document are contained within the text of the various sections.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

4. Are there any sources of requirements in parallel with the Post Accident Monitoring Systems Software Requirements Specification? Meaning does the SRS contain, explicitly or by reference, all the requirements that were used in the design phase for the application specific software, or do software design phase activities use requirements found in any other source or document? If so, what are these sources or documents?

TVA Response:

The Westinghouse SRS, WNA-SD-00239-WBT, Revision 3 contains references to other Westinghouse software requirements documents. Specifically, 00000-ICE-3238, Revision 5, Software Requirements Specification Post Accident Monitoring System 00000-ICE-3239, Revision 13, Software Requirements Specification for the Common Q Generic Flat Panel Display Software Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

5. 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

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 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?

TVA Response:

Requirements for the reusable software elements (RSEDs) are evaluated in WNA-VR-00283-WBT-P, Revision 3, IV&V Summary Report for the Post Accident Monitoring System, dated December 2010 (Attachment 10).

RSED traceability is contained in WNA-VR-00280-WBT, Revision 2, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Reactor Vessel Level Indication System (RVLIS)

Custom PC Elements. This document can be made available for audit at the Westinghouse Rockville office.

At the September 15 public meeting in Rockville, the following actions were agreed to. These items address the traceability concerns with the Software Requirements Specification.

6. Westinghouse will perform a review of the Requirements Traceability Matrix(RTM), using the issues identified at the 9/15 public meeting as a guide (documented below) and update the RTM as required.

TVA Response:

Please see response to letter Item 13 (NRC Matrix Item 145).

7. 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.

TVA Response:

Please see response to letter Item 13 (NRC Matrix Item 145).

8. Westinghouse will add a comments column in the

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Requirements Traceability Matrix (RTM) to address items not in the SRS or SysRS.

TVA Response:

A comments column has been added to WNA-VR-00279-WBT, Revision 3, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Post Accident Monitoring System.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

9. IEEE 830 says you shouldnt have planning information in the SRS. Westinghouse has agreed to remove this information.

TVA Response:

Westinghouse has confirmed that process requirements have been removed from the SRS.

Source: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: Common Q RAI concerns, dated December 8, 2010 (Reference 17)

10. IEEE 830 says you shouldnt have process requirements in the SRS. Westinghouse has agreed to remove these requirements.

TVA Response:

Westinghouse confirmed that process requirements have been removed from the SRS.

Source: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: Common Q RAI concerns, dated December 8, 2010 (Reference 17)

11. Westinghouse will perform and document an evaluation of the SRS to ensure compliance with Reg. Guide 1.172 and justify any deviations.

TVA Response:

WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1):

Section 9, Compliance Evaluation Of The Watts Bar 2 PAMS Software Requirements Specification To IEEE Standard 830-1998 And Regulatory Guide 1.172 has been added.

12. 25 issues identified by V&V where some requirements have not been included in the System Design

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Specification (SDS) (14) and SRS (11) at the revisions reviewed by V&V. Have these been addressed?

TVA Response:

The twenty-five (25) issues are captured in Exception Reports (ERs): V&V-769 and V&V-770. These ERs have all been addressed and the ERs have been closed satisfactorily by Westinghouse IV&V.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

13. Some hardware requirements are contained in the SRS instead of the System Design Specification (SDS).

These will be removed from the SRS and incorporated into the next revision of the SDS.

TVA Response:

The hardware requirements in the Software Requirements Specification have been deleted and moved to System Design Specification.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 16, 2010 (Reference 15)

14. RTM item R4.2-2 protection class software set to 0.

Needs to be fixed internally. Write CAPs to revise the application restrictions document on AC160.

TVA Response:

Westinghouse CAPs IR# 10-259-M034 has been issued. This item will be addressed in revision 4 of the RTM.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

15. Westinghouse to improve the traceability of the tests that are performed with the function enable (FE) switch in the ENABLE position.

TVA Response:

The tests that are performed with the FE keyswitch in the ENABLE position are defined in the SRS Sections:

6.2 Manually Initiated Testing, 7.2.23 Annunciator Test Display, 7.2.25 Saturation Margin Test Display, and 7.2.26 Analog Output Test Display.

16. Westinghouse to revise documents to be consistent with referring to the FE switch in the ENABLE position.

TVA Response:

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Westinghouse has elected to standardize on the terms FE keyswitch and ENABLE. A review of recent documents for compliance with this comment and commitment was performed with the following results:

a. Revision 3 of the SysRS, and SDS have been revised to use the terms FE keyswitch. Revision 3 of the SDS is consistent in use of the term ENABLE.

b. SysRS Revision 3 is not consistent in use of the term ENABLE as noted below:

i. R2.5.2.1-2 uses the term ENABLED instead of ENABLE ii. R2.5.2.1.3-3, R2.6.3.3-1, R2.6.3.3-2, R2.6.3.3-3, and R2.6.3.3-7, use the term Enable instead of ENABLE

c. Revision 3 of the SRS is not consistent in use of the terms FE keyswitch and ENABLE as noted below:

i. Tables 7.2-1 Train A PAMS Data Transmitted to the Plant Computer and 7.2-2 Train B PAMS Data Transmitted to the Plant Computer items 101 and 102 in the SRS refer to the FE switch.

All other items in the SRS refer to the FE keyswitch.

ii. Section 2.1, page 2-4, uses the term Enable instead of ENABLE iii. Requirements R7.2.14-6 and R7.2.16-7 use the term active instead of ENABLE iv. Requirements R7.2.23-2, R7.2.25-2, R7.2.26-2, R7.2.31-4, 7.2.56 FPDS Availability, and R7.2.57-4 use the term enabled instead of ENABLE

d. WNA-AR-00180-WBT-P, Revision 0, Failure Modes and Effects Analysis (FMEA) for the Post Accident Monitoring System, dated October 2010, submitted in TVA letter to NRC dated (Reference

12) is not consistent in use of the term FE keyswitch as noted below:

i. Section 2.2 System Description and Table 3-1 WB2 PAMS FMEA refer to the FE switch.

ii. Table 3-1 describes the switch as the Functional Enable (FE) switch and the FE key-switch

e. Revision 2 of the Licensing Technical Report is not consistent in use of the term FE keyswitch as noted below:

i. Sections 2.2, 5.3 use the term (FE) keylock switch on pages 2-3 (2 places), page 5-3, page 5-6 (4 places)

The identified discrepancies in the use of the terms FE keyswitch and ENABLE in the SysRS, SRS, FMEA and Licensing Technical Report, will be corrected in the next revision of the documents.

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

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N documents are used. Describe in 1.1 of the SysRS.

Need a good write up of how the process works.

TVA Response:

Please see response to letter item 13 (NRC Matrix Item 145).

18. Westinghouse and TVA will develop a revised schedule for document submittals and provide it to the NRC no later than 9/30/10 TVA Response:

The revised document submittal schedule was included as item 3 NRC Request (Matrix Item Number 142, TVA Commitments Nos. 10 and 17) in TVA letter to NRC dated October 26, 2010 (Reference 5).

19. TVA will update the Procurement Requisition Resolution Matrix and submit it to show how the Common Q PAMS design meets the contract requirements.

TVA Response:

The Procurement Requisition Resolution Matrix has been updated and is included in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS)

Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1), as Section 11, TVA Contract Compliance Matrix.

20. Westinghouse to add the Software Design Descriptions to the RTM TVA Response:

The Software Design Description documents were added to the RTM in WNA-VR-00279-WBT, Rev 2.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

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

TVA Response:

When a Common Q PAMS requirements document references a section of another document, all requirements in that section are applicable.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

22. Westinghouse to review the use of shall outside of

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N numbered paragraphs in requirements documents to ensure that all requirements are captured and clearly identified.

TVA Response:

See response in letter dated December 22, 2010, item 2 (NRC Matrix Item 050).

23. Westinghouse to resolve the following questions concerning Software Design Descriptions (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.

TVA Response:

a. There are three SDDs prepared specifically for the Watts Bar 2 PAMS project. These are listed below in Item b. These documents and superior requirements documents refer to other generic SDDs also listed in Item b.

b. The SDDs developed for this project are:

i. WNA-SD-00248-WBT, Revision 1, Watts Bar 2 NSSS Completion Program I&C Projects Software Design Description for the Post Accident Monitoring System Flat Panel Display ii. WNA-SD-00250-WBT, Revision 1, Watts Bar 2 NSSS Completion Program I&C Projects Software Design Description for the Post Accident Monitoring System AC160 Software iii. WNA-SD-00277-WBT, Revision 2, Watts Bar 2 NSSS Completion Program I&C Projects Software Design Description for the Post Accident Monitoring System Flat Panel Display System Screen Design Details iv. Other generic SDDs referenced by the PAMS project are:

(a) 00000-ICE-20157, Revision 18, Software Design Description for the Common Q Generic Flat-Panel Software (b) 00000-ICE-30152, Revision 5, Software Design Description Post Accident Monitoring System AC160

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N (c) 00000-ICE-30140, Revision 4, Software Design Description for the Common Q Core Protection Calculator System Database and Utility Functions

c. Refer to WNA-VR-00279-WBT, Revision 3.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

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

TVA Response:

Section 3.2.4.1 of WCAP-15927 describes the RSED design process for custom PC elements and type circuits. The Glossary of Terms in the SPM defines custom PC elements and type circuits as modules.

Therefore, the relationship between WCAP-15927 describing the RSED process as circuits, is defined in the SPM requirements for software module development.

WCAP-15927 is on the AP1000 docket.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13) 143 The WBN2 PAMS Software Requirements Specification (WBN2 Responder: WEC 17. N Open Open-NRC Review ML101650255, Item WBN2 PAMS System Requirements EICB (Carte)

PAMS SRS - ML101050202) contains a table (see page iii) titled, No. 7 Specification Document Traceability & Compliance, which states that the Addressed in the 9/15 public meeting and 9/20 - 9/21 audit. Response included in letter Due 12/22/10 WBN2 PAMS SRS was created to support the three documents A detailed explanation will be provided. dated 12/22/10 TVA docketed WNA-DS-01617-WBT identified (one of which is the WBN2 PAMS SysRS). Section 1.1, To be addressed by Rev. 1, RRAS Watts Bar 2 NSSS Overview, of the WBN2 PAMS SRS states: This document TVA Response: Revision of the RTM, Completion Program I&C Projects Post describes requirements for the major software components SRS, SysRS, and Accident Monitoring System- System (a) and (b) The requested information is provided in the SysDS. Requirements Specification, dated (a) Please list and describe each of the major software following documents: December 2009.

components. Please include a description of any NRC review for i. WNA-LI-00058-WBT-P, Revision 2, Post-each of these components. Accident Monitoring System (PAMS) Licensing Technical Report, Table 6-1, Document (b) Please list and describe each of the other software Requirements which lists the software components. Please include a description of any NRC review for documentation requirements for the Common Q each of these components. PAMS and Section 11 TVA Contract Compliance Matrix submitted in TVA Letter to (c) What other documents contain the requirements for the other NRC, dated December 3, 2010 (Reference 1).

software components? ii. WNA-DS-01617-WBT-P, Revision 3, Post Accident Monitoring System- System The WBN2 PAMS System Design Specification (WBN2 PAMS Requirements Specification, dated December

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N SDS) contains a table (see page iii) titled, Document Traceability 2010 (Attachment 1)

& Compliance, which states that the WBN2 PAMS SysRS was iii. WNA-SD-00239-WBT-P, Revision 3, Software created to support the WBN2 PAMS SysRS. Section 1.1, Requirements Specification for the Post Accident Purpose, of the WBN2 PAMS SDS states: The purpose of this Monitoring System, dated December 2010 document is to define the hardware design requirements (Attachment 7) iv. WNA-VR-00279-WBT, Revision 3, Watts Bar 2 (c) Do the WBN2 PAMS SRS and SDS, together, implement all of NSSS Completion Program I&C Projects the requirements in the WBN2 PAMS SysRS? Requirements Traceability Matrix for the Post Accident Monitoring System (available for NRC (e) Please briefly describe all of the documents that implement audit at the Westinghouse Rockville office) the WBN2 PAMS SysRS. To the best of TVAs knowledge, no prior NRC review of the software components has been performed.

(c) WNA-VR-00280-WBT, Revision 2, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Reactor Vessel Level Indication System (RVLIS) Custom PC Elements (available for NRC audit at the Westinghouse Rockville office)

(d) No. Please see Item (e) below.

(e) The documents that describe the requirements that implement the WBN Unit 2 SysRS are:

i. WNA-VR-00279-WBT, Revision 3, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Post Accident Monitoring System (available for NRC audit at the Westinghouse Rockville office) ii. WNA-VR-00280-WBT, Revision 2, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Reactor Vessel Level Indication System (RVLIS) Custom PC Elements (available for NRC audit at the Westinghouse Rockville office)

Source: E-mail from Westinghouse (Matthew A. Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13) 144 The WBN2 PAMS Software Requirements Specification (WBN2 Responder: WEC 18. N Open Open-NRC Review ML101650255, Item TVA Letter dated WBN2 PAMS Software Requirements EICB (Carte)

PAMS SRS) contains a table (see page iii) titled, Document No. 8 10/5/10 Specification Traceability & Compliance, which states that the WBN2 PAMS (a) The purpose of NABU-DP-00014-GEN document is to Revised response included in Due 12/3/10 SRS was created to support the three documents identified (two of define the process for system level design, software design letter dated 12/22/10 By letter dated April 8, 2010 these documents have been provided on the docket). and implementation, and hardware design and Responses to items a (ML10101050203), TVA docketed implementation for Common Q safety system development. Response provided in letter and e provided. WNA-SD-00239-WBT, Revision 1, (a) Please describe the third document (i.e., NABU-DP-00014- This document supplements the Common Q SPM, WCAP- dated 10/5/10 "RRAS Watts Bar 2 NSSS Completion GEN Revision 2, Design Process for Common Q Safety 16096-NP-A. The scope of NABU-DP-00014-GEN includes NNC 11/18/10: Program I&C Projects, Software Systems). the design and implementation processes for the application NRC Review and WEC to (1) Items b-d closed to Requirements Specification for the Post development. For a fuller description of the design process complete response. other Open Item nos. Accident Monitoring System, dated (b) Please describe the flow of information between these three described in NABU-DP-00014-GEN please refer to the (2) The point of these February 2010 (ML101050202).

documents. Design Process for AP1000 Common Q Safety Systems, b-d to be addressed at public questions was to WCAP-15927 on the AP1000 docket. Since this is a meeting and audit. Will require understand how the (c) Does the PAMS SRS implement the requirements in these Westinghouse process document that is not specifically information to be docketed. origin of the three documents? referenced in the SRS, it will be removed in the next revision requirements in the of the document. requirements (d) Please describe if and how these three documents are used in specifications were the development of the PAMS Software Design Description. (b) - Closed to items 142 and 145 documented. TVA stated that the origin of (e) Do the WBN2 V&V activities include verification that the (c) - Closed 142 the requirements would requirements of these three documents have been incorporated be demonstrated in

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N into the WBN2 PAMS SRS. (d) - Closed to Item 142 Rev. 2 of the CQ PAMS LTR.

(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 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.

TVA Response to Follow-up NRC Request:

(1) Item (a) in the original list, NABU-DP-00014-GEN Revision 2, Design Process for Common Q Safety Systems, is available for NRC audit at the Westinghouse Rockville office.

(2) WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) contains the following change to address the NRC request:

Section 11, TVA Contract Compliance Matrix showing the origin of the requirements was added.

145 The WBN2 PAMS System Design Specification (WBN2 PAMS Responder: WEC 19. N Open Open-NRC Review ML101650255, Item WBN2 PAMS System Design EICB (Carte)

SDS) contains a table (see page iii) titled, Document Traceability No. 9 Specification

& Compliance, which states that the WBN2 PAMS SDS was (1) The review and update of the RTM is complete. The Response included in letter Due 12/22/10 created to support the WBN2 PAMS SysRS. revised RTM can be made available for NRC audit at dated 12/22/10 TVA docketed WNA-DS-01667-WBT the Westinghouse office in Rockville. To be addressed by Rev. 1, RRAS Watts Bar 2 NSSS (a) Does the WBN2 PAMS SDS implement all of the hardware During the September 20-21, Revision of the RTM, Completion Program I&C Projects Post requirements in the WBN2 PAMS SysRS? (2) Please see letter Item 10 (NRC Matrix Item 142, sub 2010 audit at Westinghouse, it SRS, SysRS, and Accident Monitoring System- System item 13). was acknowledged that SysDS. Design Specification, dated December (b) Please briefly describe all of the documents that implement the TVA/Westinghouse had 2009.

hardware requirements of the WBN2 PAMS SysRS. (3) Please see letter Item 10 (NRC Matrix Item 142, sub previously (in September 15, item 12). 2010 public meeting) stated:

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N This item is used to track all traceability issues with the System Design Specification (SDS). (4) Section 11 TVA Contract Compliance Matrix was TVA would provide the RSED added to WNA-LI-00058-WBT-P, Revision 2, Post- RTM. (see ML102920031 Item At the September 15 public meeting in Rockville, the following Accident Monitoring System (PAMS) Licensing No 6) actions were agreed to. These items partially address the Technical Report submitted in TVA Letter to NRC traceability concerns with the System Design Specification. dated December 3, 2010, (Reference 1). TVA would revise and resubmit This item will be updated with the results of the September 20 the PAMS RTM to address all and 21 Commercial Grade Dedication and SDS RTM audit. (5) WNA-VR-00283-WBT, Revision 1, IV&V Summary types of issues identified in the Report for the Post Accident Monitoring System, public meeting. (see

1. Westinghouse will perform completed a review of the submitted in TVA to NRC letter dated December 3, ML102920031 Item No 7)

Requirements Traceability Matrix(RT), using the issues 2010 (Reference 1) includes the Requirements and identified at the 9/15 public meeting as a guide (documented Design phase reviews. TVA would revise and resubmit below) and update the RTM as required. the Software Verification and (6) Per Westinghouse letter WBT-D-2268 NRC Access to Validation phase summary

2. Some hardware requirements are contained in the SRS Common Q Documents at the Westinghouse Rockville report for the requirements instead of the System Design Specification (SDS). These will Office dated August 16, 2010 (Reference 9) System phase to document the be removed from the SRS and incorporated into the next Requirements Specification for the Common Q Generic completion of the requirements revision of the SDS. Flat Panel Display, 00000-ICE-30155, Revision 9 is phase review. (see available for audit at the Westinghouse Rockville office. ML102920031 Item No 8)

3. 25 issues identified by V&V where some requirements have not been included in the SDS (14) and SRS (11) at the The generic AC160 specifications are contained in the revisions reviewed by V&V. Have these been addressed? documents listed below. The documents are available Yes. The next revisions of the SDS and SRS address these for NRC audit at the Westinghouse Rockville office in issues. accordance with the letter number referenced. List is contained in letter.

4. TVA will update the Procurement Requisition Resolution Matrix and submit it to show how the Common Q PAMS (7) A schedule was developed and is reviewed weekly by design meets the contract requirements. Westinghouse and TVA project management.

5. The next issue of the IV&V report will include the (8) The revised document submittal schedule was Requirements phase review of the RTM and a partial review included as item 3 NRC Request (Matrix Item Number for the Design phase. 142, TVA Commitments Nos. 10 and 17) in TVA letter to NRC dated October 26, 2010 (Reference Error!

6. Westinghouse to provide the generic AC160 and flat panel Reference source not found.).

specifications.

(9) The flow of documentation information was provided to

7. Westinghouse and TVA to develop a schedule of licensing the NRC inspector during the Common Q PAMS audit.

document submittals that can be met by the project team.

Source: E-mail from Westinghouse (Andrew P. Drake) to

8. The flow of information is from the SysRS to the SDS Bechtel (Mark S. Clark), RE: RAI on SysRS, dated (hardware) and SRS (software). Describe how the December 8, 2010 (Reference 18) documents are used. Describe in 1.1 of the SysRS. Need a good write up of how the process works.

154 7.2 7.2 FSAR section 7.2.1.1.10, setpoints: NRC staff has issued RIS Responder: Craig/Webb 20. Y Open Open-NRC Review ML101720589, Item TVA Letter dated EICB RAI ML102861885 sent to DORL EICB (Garg) 2006-17 to provide guidance to the industry regarding the No. 6 and EICB RAI 10/5/10 instrument setpoint methodology which complies with 10 CFR (Q1) Refer to the response to letter item 13, RAI Matrix Item Response is not acceptable. A Due 12/17/10 ML102861885 Item 50.36 requirements. Provide the information on how the WBN2 51. revised response will be No. 8 TVA Letter dated setpoint methodology meets the guidance of RIS 2006-17 and submitted in the letter dated Pending FSAR 10/29/10 include this discussion in this section. Also, by letter dated May (Q2) EEB-TI-28's single sided methodology conforms with 10/29/10. Amendment 102 Enclosure 1 Item 13, 2010, TVA provided Rev. 7 of EEB-TI-28 to the staff. The staff WBN's design basis commitment to ensure that 95% of the submittal. No. 13 noted that section 4.3.3.6 of EEB-TI-28 discusses the correction analyzed population is covered by the calculated tolerance for setpoints with a single side of interest. It should be noted that limits as defined in NRC Reg Guide 1.105, Revision 2, 1986 FSAR AMD 100. Since the staff has not approved this aspect of setpoint methodology for that was in affect during WBN Unit 1 licensing. The single all the setpoint and Unit 1. The staff finds this reduction in uncertainties is not justified sided methodology is not used for any TSTF-493 setpoints allowable value for Unit unless it can be demonstrated that the 95/95 criteria is met. that use TI-28 methodology. 2 is calculated and Therefore, either remove this reduction factor for single sided added to TS, TVA uncertainties or justify how you meet the 95/95 criteria given in RG TVA Revised Response: needs to address the 1.105. latest criteria and that

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N In order to respond to other NRC comments on the setpoint include 95/95 criteria.

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

(Q1) WBN 2 implementation of TSTF-493, Rev. 4, Option A includes addition of a discussion of the WBN setpoint 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 Figure 15.1- Responder: WEC 21. N Open Open-NRC Review ML101720589, Item TVA Letter dated Response on hold pending EICB (Garg) 1designed to prevent exceeding 121% of power.The No. 8 10/5/10 Westinghouse review.

value of 121% is changed from 118%. The justification for this Per Westinghouse letter WBT-D-2340, TENNESSEE Revised response included in Due 12/22/10 change states that this was done to bring the text of this section in VALLEY AUTHORITY WATTS BAR NUCLEAR PLANT letter dated 12/22/10.

agreement with section 4.3.2.2.5, 4.4.2.2.6 and table 4.1-1. UNIT 2 FSAR Markups Units I and 2 118% vs. 121 % and Amendment 101 However, Table 4.1-1 and section 4.3.2.2.5 still show this value as Correction to RAI Response SNPB 4.3.2-7, (Reference 17) Response is included in letter Submitted 10/29/10.

118%. Justify the change. the 118% value should be 121%. Depending on the use in dated 10/5/10 the FSAR either 118% or 121% are the correct values. As a TVA needs to justify result of the question, Westinghouse reviewed all locations why some places 121%

where either 118% or 121% are used and the context of use is used and other and provided a FSAR markup to reflect the correct value at places 118% is used .

the specific location. These changes will be incorporated in What does 121% or a future FSAR amendment. 118% means.

TVA Response to Follow-up NRC Request:

The following response was provided by Westinghouse letter WBT-D-2690 Follow Up -NRC Request on 118% and 121 %

FSAR Power Levels, dated December 6, 2010 (Reference 2). This corrects the information provided in TVA letter to NRC letter dated October 5, 2010 (Reference 21)

A review of the markups provided by Westinghouse (Reference 4) and the current Unit 2 FSAR shows that in the context of the Power Range High Neutron Flux, High Setting, the value of 118% is correct. In the context of the peak core power during certain transients to confirm the fuel melt criterion, the value of 121% is

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N correct. A detailed discussion of peak core power during transients is contained in FSAR Chapter 4.3.2.2.5, Limiting Power Distributions.

183 7/15/2010 Responder: WEC 22. Y Open Open-NRC Review EICB RAI TVA Letter dated EICB (Carte)

ML102980066 Item 10/21/10 An emphasis is placed on traceability in System Requirements The generic Software Requirements Specification applies Revised response included in Due 12/3/10 No. 9 Enclosure 1 Item Specifications in the SRP, in the unmodified IEEE std 830-1993, except as modified by the WBN Unit 2 System Requirements letter dated 12/22/10. No. 4 and even more so given the modifications to the standard listed in Specification. NNC 11/18/10: The Regulatory Guide 1.172, which breaks with typical NRC use of the point behind this open word should to say Each identifiable requirement in an SRS TVA Response to Follow-up NRC Request: Response provided in letter item was that TVA must must be traceable backwards to the system requirements and the dated 10/21/10 demonstrate that the design bases or regulatory requirements that is satisfies Please see the response to RAI item 12 in letter dated origin of each 12/222/10, NRC Matrix Item 144. requirement in the On page 1-2 of the Post Accident Monitoring Systems Software WEC requirements Requirements Specification in the background section, is the specification is known sentence Those sections of the above references that require and documented. TVA modification from the generic PAMS are defined in the document stated that this referring purely to the changes from WNA-DS-01617-WBT Post information would be in Accident Monitoring System-System Requirements Specification CQ PAMS LTR Rev. 2.

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?

185 7/15/2010 Responder: WEC 23. N Open Open-NRC Review EICB RAI EICB (Carte)

ML102980066 Item An emphasis is placed on the traceability of requirements in Steve Clark to look at how to combine traceability items. Response included in letter Due (1) 12/3/10 No. 17 Software Requirements Specifications in the SRP, in the dated 12/22/10. (2) 12/22/10 unmodified IEEE std 830-1993, and even more so given the Was addressed to during the 9/15 meeting and 9/20 - 9/21 modifications to the standard listed in Regulatory Guide 1.172, audit. NNC 11/18/10: (1)The which breaks with typical NRC use of the word should to say point behind this open Each identifiable requirement in an SRS must be traceable TVA Response to Follow-up NRC Request: item was that TVA must backwards to the system requirements and the design bases or demonstrate that the regulatory requirements that is satisfies Also the NRC considers (1) Please see the response to Item 12 in this letter (NRC origin of each that the SRS is the complete set of requirements used for the Matrix Item 144). requirement in the design of the software, whether it is contained within one WEC requirements document or many. In order to evaluate an SRS against the (2) There is no RTM for development of the individual specification is known guidance in the SRP the staff needs access to all the reusable software elements. As listed in item 15 of and documented. TVA requirements. Table 6-1 Document Requirements of WNA-LI-00058- stated that this WT-P, Revision 2, Post-Accident Monitoring System information would be in References 12, 27, 29, and 31-44 in the Post Accident Monitoring (PAMS) Licensing Technical Report submitted in TVA CQ PAMS LTR Rev. 2.

Systems Software Requirements Specification are various types Letter to NRC, dated December 3, 2010, a RTM for (2) TVA also said it of Reusable Software Element. implementation of the RSEDs (WNA-VR-00280-WBT) would provide a RTM for the WBN Unit 2 Common Q PAMS has been for the RSED These references are used in the body of the SRS, for example: developed. This document is available for NRC audit at the Westinghouse Rockville office.

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

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N origin?

187 By letter dated June 18, 2010, TVA docketed responses to NRC Responder: Merten 24. N Open Open-NRC Review ML101970033, Item TVA Letter dated Are these connections already EICB (Carte) requests for information. No. 1 & 2 10/5/10 docketed?

1) Please refer to the revised response to letter dated Revised response included in Due 12/22/10

1) Enclosure 1, Item No. 33 of the TVA letter dated June 18, 2010, 10/5/10 Item 18 (RAI Matrix item 115). letter dated 12/22/10.

did not identify any connection from the PAMS Operator Modules Revise Response (OMs) to the plant computer and printers; however, Figure 2.1-1 of Partial Response provided in the PAMS System Requirements Specification (WNA-DS-01617- 2) This is a duplicate of closed RAI Matrix Item 45. letter dated 10/5/10 WBT Rev. 1 - ML101680578) shows a TCP connection from the OMs to the plant computer and printer. Please explain. TVA Response to Follow-up NRC Request:

NNC 8/25/10: Why did TVA not

2) Please clarify whether any digital safety-related systems or A review of the following documents determined that the catch this on the review of the components have a digital communications path to non-safety- connection between the OM and the plant computer has PAMS SysRS or SRS? Does related systems or with safety related systems in another division. been changed to a connection to a printer: TVA check that the CQ PAMS If so, NRC staff will need these paths identified on the docket. system meets the requirements

1. WNA-DS-01617-WBT-P, Revision 3, Post Accident in its purchase specifications?

Monitoring System - System Requirements Specification, dated November 2010 (Attachment 1)

2. WNA-DS-01667-WBT-P, Revision 3, Post Accident Monitoring System - System Design Specification, dated November 2010 (Attachment 4)

3. WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report, dated November 2010, submitted in TVA to NRC letter December 3, 2010 (Reference 1)

Review of the newly released Common Q PAMS documents listed below confirmed they correctly show a connection from the OM to a printer and not the plant computer. None of the other newly released documents contain a figure of the Common Q PAMS system showing the connection from the OM. The exception is WCAP-17351 which was created to allow a non-proprietary version of a generic Common Q document to be submitted on the docket and was not intended to reflect the WBN Unit 2 configuration.

Note: The OM printer connection is only used for maintenance. A printer is not normally connected to the OM. To use the OM printer connection, the FE keyswitch must installed and be in the ENABLE position.

(1) WNA-TP-02988-WBT, Revision 0, Post Accident Monitoring System Channel Integration Test/Factory Acceptance Test, dated November 2010, submitted in TVA to NRC letter December 3, 2010 (Reference 1)

(2) WNA-AR-00180-WBT-P, Revision 0, Failure Modes and Effects Analysis (FMEA) for the Post Accident Monitoring System, dated October 2010, submitted in TVA to NRC letter November 5, 2010 (Reference 12) 202 7.5.2 7/22/2010 Responder: WEC 25. N Open Open-NRC Review EICB RAI TVA Letter dated EICB Response included in letter ML102980066 Item 10/5/10 (Carte) The letter (ML0003740165) which transmitted the Safety dated 12/22/10 Due 12/3/10 No. 4 Evaluation for the Common Q topical report to Westinghouse

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N stated: "Should our criteria or regulations change so that our Revision 1 of the Licensing Technical Report will provide Partial Response provided in Licensing Technical conclusions as to the acceptability of the report are invalidated, CE more detailed information on the changes to the platform. letter dated 10/5/10 Report R2 Nuclear Power and/or the applicant referencing the topical report will be expected to revise and resubmit their respective Rev. 2 of the Licensing Technical Report will include the documentation, or submit justification for continued applicability of applicability of guidance.

the topical report without revision of the respective documentation." Question No 81 identified many criteria changes; TVA Response to Follow-up NRC Request:

please revise the respective documentation or submit justification for continued applicability of the topical report. WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report (LTR) submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) contains the following change to address the NRC request:

Section 9, Compliance Evaluation of the Watts Bar 2 PAMS Software Requirements Specification to IEEE Standard 830-1998 and Regulatory Guide 1.172 to show the origin of the requirements has been added.

The descriptions and commitments in the Topical Report (TR) still apply. The LTR provides compliance evidence to the new ISG-04 criteria. The statement in the SE means that the TR can be evaluated against later NRC criteria when it appears.

Source: E-mail from Westinghouse (Matthew A. Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13) 212 7.5.2 7/27/2010 Responder: WEC 26. N Open Open-NRC Review EICB RAI EICB (Carte)

ML102980066 Item By letter dated June 18, 2010 (ML101940236) TVA stated Application specific requirements for testing. This cannot be Response included in letter Due 12/22/10 No. 10 (Enclosure 1, Attachment 3, Item No. 3) that the PAMS system addressed in a topical report. Evaluation of how the dated 12/22/10.

design specification and software requirements specification hardware meets the regulatory requirements. To be addressed by contain information to address the "Design Report on Computer WBN2 specific test plan Integrity, Test and Calibration..." The staff has reviewed these WEC to provide the information and determine where the documents, and it is not clear how this is the case. 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. 1. IEEE-603 1991 (2) Please describe how the information provided demonstrates conformance with IEEE 7-4.3.2-2003 Clauses 5.5 & 57. 5.5 System Integrity. The safety systems shall be designed to accomplish their safety functions under the full range of applicable conditions enumerated in the design basis.

TVA Response: The applicable conditions and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) Section 11, Contract Compliance Matrix items:

• 87 and 88 Seismic

• 89, 90, 91, 92 and 185 EMI/RFI

• 300, 301 and 302 Environmental 5.7 Capability for Test and Calibration. Capability for testing and calibration of safety system equipment

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N shall be provided while retaining the capability of the safety systems to accomplish their safety functions.

The capability for testing and calibration of safety system equipment shall be provided during power operation and shall duplicate, as closely as practicable, performance of the safety function. Testing of Class 1E systems shall be in accordance with the requirements of IEEE Std 338-1987 [3]. Exceptions to testing and calibration during power operation are allowed where this capability cannot be provided without adversely affecting the safety or operability of the generating station. In this case:

(1) appropriate justification shall be provided (for example, demonstration that no practical design exists),

(2) acceptable reliability of equipment operation shall be otherwise demonstrated, and (3) the capability shall be provided while the generating station is shut down.

TVA Response: The requirements for test and calibration and Common Q PAMS system compliance, are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report Section 11, TVA Contract Compliance Matrix items:

• 202 self test

• 350 Maintenance Bypass

• 351 Loop Tuning Parameters,

• 400 and 401 3.7.2 Testing, Calibration, and Verification

• 402, 403 and 404, 3.7.3 Channel Bypass or Removal from Operation 5.10 Repair. The safety systems shall be designed to facilitate timely recognition, location, replacement, repair, and adjustment of malfunctioning equipment.

TVA Response: The requirements for repair and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report Section 11, TVA Contract Compliance Matrix items:

• 179 Mean time to repair

• 202 self test

• 398 3.7 Maintenance

• 399 3.7.1 Troubleshooting 6.5 Capability for Testing and Calibration 6.5.1 Means shall be provided for checking, with a high degree of confidence, the operational availability of each sense and command feature input sensor required for a safety function during reactor operation.

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N This may be accomplished in various ways; for example:

(1) by perturbing the monitored variable, (2) within the constraints of 6.6, by introducing and varying, as appropriate, a substitute input to the sensor of the same nature as the measured variable, or (3) by cross-checking between channels that bear a known relationship to each other and that have readouts available.

6.5.2 One of the following means shall be provided for assuring the operational availability of each sense and command feature required during the post-accident period:

(1) Checking the operational availability of sensors by use of the methods described in 6.5.1.

(2) Specifying equipment that is stable and retains its calibration during the post-accident time period.

TVA Response: The requirements for sense and command feature testing and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report Section 11 TVA Contract Compliance Matrix items:

• 10, display of sensor diagnostic information

• 202 self test

• 205 self diagnostics and watchdog timer

• 264 through 271, system self checks

• 311 system status displays,

• 341 alarms,

• 344 on-line diagnostics

2. IEEE 7-4.3.2-2003 5.5 System integrity In addition to the system integrity criteria provided by IEEE Std 603-1998, the following are necessary to achieve system integrity in digital equipment for use in safety systems:

Design for computer integrity Design for test and calibration Fault detection and self-diagnostics 5.5.1 Design for computer integrity The computer shall be designed to perform its safety function when subjected to conditions, external or internal, that have significant potential for defeating the safety function. For example, input and output processing failures, precision or round off problems,

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N improper recovery actions, electrical input voltage and frequency fluctuations, and maximum credible number of coincident signal changes.

If the system requirements identify a safety system preferred failure mode, failures of the computer shall not preclude the safety system from being placed in that mode. Performance of computer system restart operations shall not result in the safety system being inhibited from performing its function.

TVA Response: Common Q PAMS system reliability and failure modes are described in:

• WNA-AR-00180-WBT, Revision 0, Failure Modes and Effects Analysis (FMEA) for the Post Accident Monitoring System

• WNA-AR-00189-WBT, Revision 0 Post Accident Monitoring System Reliability Analysis The requirements for mean time between failure and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report, Section 11 TVA Contract Compliance Matrix item 178.

5.5.2 Design for test and calibration Test and calibration functions shall not adversely affect the ability of the computer to perform its safety function. Appropriate bypass of one redundant channel is not considered an adverse effect in this context. It shall be verified that the test and calibration functions do not affect computer functions that are not included in a calibration change (e.g., setpoint change).

V&V, configuration management, and QA shall be required for test and calibration functions on separate computers (e.g., test and calibration computer) that provide the sole verification of test and calibration data.

V&V, configuration management, and QA shall be required when the test and calibration function is inherent to the computer that is part of the safety system.

V&V, configuration management, and QA are not required when the test and calibration function is resident on a separate computer and does not provide the sole verification of test and calibration data for the computer that is part of the safety system.

TVA Response: The requirements for test and calibration and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Technical Report Section 11 TVA Contract Compliance Matrix items:

• 202 self test

• 350 Maintenance Bypass

• 351 Loop Tuning Parameters,

• 400 and 401 3.7.2 Testing, Calibration, and Verification

• 402, 403 and 404, 3.7.3 Channel Bypass or Removal from Operation 5.5.3 Fault detection and self-diagnostics Computer systems can experience partial failures that can degrade the capabilities of the computer system, but may not be immediately detectable by the system.

Self-diagnostics are one means that can be used to assist in detecting these failures. Fault detection and self-diagnostics requirements are addressed in this sub-clause.

The reliability requirements of the safety system shall be used to establish the need for self-diagnostics. Self diagnostics are not required for systems in which failures can be detected by alternate means in a timely manner. If self-diagnostics are incorporated into the system requirements, these functions shall be subject to the same V&V processes as the safety system functions.

If reliability requirements warrant self-diagnostics, then computer programs shall incorporate functions to detect and report computer system faults and failures in a timely manner. Conversely, self-diagnostic functions shall not adversely affect the ability of the computer system to perform its safety function, or cause spurious actuations of the safety function. A typical set of self-diagnostic functions includes the following:

Memory functionality and integrity tests (e.g.,

PROM checksum and RAM tests)

Computer system instruction set (e.g., calculation tests)

Computer peripheral hardware tests (e.g.,

watchdog timers and keyboards)

Computer architecture support hardware (e.g.,

address lines and shared memory interfaces)

Communication link diagnostics (e.g., CRC checks)

Infrequent communication link failures that do not result in a system failure or a lack of system functionality do not require reporting.

When self-diagnostics are applied, the following self-diagnostic features shall be incorporated into the system design:

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N a) Self-diagnostics during computer system startup b) Periodic self-diagnostics while the computer system is operating c) Self-diagnostic test failure reporting TVA Response: The requirements for fault detection and self diagnostics and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS)

Licensing Technical Report Section 11 TVA Contract Compliance Matrix items:

• 107 error free download

• 202 self test

• 205 self diagnostics and watchdog timer

• 263 primary and backup communication

• 264 through 271, continuous on-line self checks

• 311 system status displays,

• 341 alarms,

• 344 on-line diagnostics 5.7 Capability for test and calibration No requirements beyond IEEE Std 603-1998 are necessary.

TVA Response: No response required.

Concurrence: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: RAI 212 Response - Errors in the Contract Compliance Matrix, dated December 17, 2010 (Reference 14) 213 7.5.2 7/27/2010 Responder: WEC 27. N Open Open-NRC Review EICB RAI EICB (Carte)

ML102980066 Item By letter dated June 18, 2010 (ML101940236) TVA stated Conformance with IEEE 603 is documented in the revised Response is included in letter Due 12/31/10. No. 18 (Enclosure 1, Attachment 3, Item No. 3) that the PAMS system Common Q PAMS Licensing Technical Report and the dated 10/25/10 design specification and software requirements specification Common Q PAMS System Design Specification.

contain information to address the "Theory of Operation NNC to review and revise this Description." The staff has reviewed these documents, and it is Attachment 1 contains the proprietary version of question after LTR R2 is not clear how this is the case. The docketed material does not Westinghouse document Tennessee Valley Authority received.

appear to contain the design basis information that is required to (TVA), Watts Bar Unit 2 (WBN2), Post-Accident Monitoring evaluate compliance with the Clause of IEEE 603. System (PAMS), Licensing Technical Report, Revision 1, (1) Please provide the design basis (as described in IEEE 604 WNA-LI-00058-WBT-P, Dated October 2010 Clause 4) of the Common Q PAMS.

(2) Please provide a regulatory evaluation of how the PAMs Attachment 8 contains the proprietary version of complies with the applicable regulatory requirements for the theory Westinghouse document Nuclear Automation Watts Bar 2 of operation. NSSS Completion Program I&C Projects Post Accident For example: Regarding IEEE 603 Clause 5.8.4 (1) What are the Monitoring System - System Design Specification, WNA-manually controlled protective actions? (2) How do the documents DS-01667-WBT, Rev. 2 dated September 2010.

identified demonstrate compliance with this clause?

244 8/3/2010 Responder: WEC 28. N Open Open-NRC Review EICB RAI Response is LIC-101 Rev. 3 Appendix B Section 4, EICB (Carte)

ML102980066 Item provided in letter "Safety Evaluation" states: "the Section 8.2.2 of the Common Q SPM (ML050350234) states that The process related requirements have been removed from Revised response is included in Due 12/22/10 No. 14 dated 10/25/10. information relied upon in the SE must the Software Requirements Specification (SRS) shall be developed revision 2 of the Software Requirements Specification (SRS). letter dated 12/22/10 be docketed correspondence."

using IEEE 830 and RE 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 Response is provided in letter LIC-101 Rev. 3 states: "The safety

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N should address the software product, not the process of producing proprietary version of Westinghouse document Nuclear dated 10/25/10. analysis that supports the change the software. In addition Section 4.3.2.1 of the SPM states "Any Automation, Watts Bar 2 NSSS Completion Program, I&C requested should include technical alternatives to the SPM processes or additional project specific Projects, Software Requirements Specification for the Post NNC 11/18/10: SysRS Rev. 2 information in sufficient detail to enable information for the ...SCMP...shall be specified in the PQP. Accident Monitoring System, WNA-SD-00239-WBT, also contains process the NRC staff to make an independent Revision 2, Dated September 2010. requirements that are more assessment regarding the acceptability Contrary to these two statements in the SPM, the WBN2 PAMS appropriately incorporated into of the proposal in terms of regulatory SRS (ML101050202) contains many process related requirements, TVA Response to Follow-up NRC Request: process documentation. requirements and the protection of for example all seventeen requirements in Section 2.3.2, public health and safety."

"Configuration Control," address process requirements for As shown is the listed documents, process related configuration control. requirements have been deleted from the SRS and SysRS in Revision 3:

Please explain how the above meets the intent of the approved SPM. Attachment 1 contains proprietary version of WNA-DS-01617-WBT-P, Revision 3, Post Accident Monitoring System-System Requirements Specification, dated December 2010.

Attachment 7 contains the proprietary version of WNA-SD-00239-WBT-P, Revision 3, Software Requirements Specification for the Post Accident Monitoring System, dated December 2010.

Source: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: Common Q RAI concerns, dated December 8, 2010 (Reference 17) 245 8/3/2010 Responder: WEC 29. N Open Open-NRC Review EICB RAI LIC-101 Rev. 3 Appendix B Section 4, EICB (Carte)

ML102980066 Item "Safety Evaluation" states: "the Section 5.8 of the Common Q SPM (ML050350234) identifies the Relates to the commitment to provide the test plan and the Response included in letter Due 12/22/10 No. 119 information relied upon in the SE must required test documentation for systems developed using the SPM compliance matrix dated 12/3/10 be docketed correspondence."

Common Q SPM. Please provide sufficient information for the NRC staff to independently assess whether the test plan for WBN2 Attachment 9 contains the Westinghouse document Post LIC-101 Rev. 3 states: "The safety PAMS, is as described in the SPM (e.g., Section 5.8.1). Accident Monitoring System Test Plan, WNA-PT-00138- analysis that supports the change WBT, Revision 0, dated November 2010. Attachment 10 requested should include technical contains the Westinghouse Application for Withholding for information in sufficient detail to enable the Post Accident Monitoring System Test Plan, WNA-PT- the NRC staff to make an independent 00138-WBT, Revision 0, dated November 2010. assessment regarding the acceptability of the proposal in terms of regulatory requirements and the protection of public health and safety."

246 8/3/2010 Responder: WEC 30. N Open Open-NRC Review EICB RAI Response is LIC-101 Rev. 3 Appendix B Section 4, EICB (Carte)

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

developed. Many other section of the SPM identify that this PQP concerning the PQP and SPM has been added to NNC 11/18/10: NRC to should contain information required by ISG6. Please provide the compliance matrix in revision 1 of the Licensing Technical NNC 11/18/10: PQP has not go to WEC Rockville LIC-101 Rev. 3 states: "The safety PQP. If "PQP" is not the name of the documentation produced, Report. been provided and CQ PAMS Offices and look at analysis that supports the change please describe the documentation produced and provide the LTR Rev. 1 does not contain PQP to decide if it must requested should include technical information that the SPM states should be in the PQP. Attachment 1 of letter dated 10/25/10 contains the comparable information. docketed. information in sufficient detail to enable proprietary version of Westinghouse document Tennessee the NRC staff to make an independent Valley Authority (TVA), Watts Bar Unit 2 (WBN2), Post- assessment regarding the acceptability Accident Monitoring System (PAMS), Licensing Technical of the proposal in terms of regulatory Report, Revision 1, WNA-LI-00058-WBT-P, Dated October requirements and the protection of 2010 public health and safety."

250 8/8/2010 Responder: WEC 31. N Open Open-NRC Review LIC-101 Rev. 3 Appendix B Section 4, EICB "Safety Evaluation" states: "the (Carte) The SPM describes the software and documents that will be Westinghouse develops Software Release Reports/Records Revised response included in Due 12/22/10 information relied upon in the SE must created and placed under configuration control. The SCMP (e.g., and a Configuration Management Release Report. Describe letter dated 12/22/10 be docketed correspondence."

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N SPM Section 6, Software Configuration Management Plan) the documents and when they will be produced. Summarize 10/25/10 is a partial describes the implementation tasks that are to be carried out. The guidance on how to produce these records, focus on project Response included in letter response. Still waiting LIC-101 Rev. 3 states: "The safety acceptance criterion for software CM implementation is that the specific requirements in SPM etc. dated 10/25/10. on Software Test Plan analysis that supports the change tasks in the SCMP have been carried out in their entirety. and all other testing requested should include technical Documentation should exist that shows that the configuration TVA Response to Follow-up NRC Request: documentation. information in sufficient detail to enable management tasks for that activity group have been successfully the NRC staff to make an independent accomplished. Please provide information that shows that the CM The following documentation shows that the configuration assessment regarding the acceptability tasks have been successfully accomplished for each life cycle management tasks for that activity group have been of the proposal in terms of regulatory activity group. successfully accomplished. requirements and the protection of public health and safety."

1. WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) contains the following changes to address the NRC requests:

a. Section 2.2.1 Hardware/Software Change Process has been added to describe the process of how changes are evaluated.

b. Section 2.2.2, Software has been expanded to include a table detailing evolutionary software changes that have occurred since the initial submittal and the change evaluation of the life cycle.

2. WNA-PT-00138-WBT, Revision 0, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System Test Plan, (Proprietary), dated November 2010 submitted in TVA Letter to NRC, dated December 3, 2010 (Reference 1).

251 8/8/2010 Responder: WEC 32. N Open Open-NRC Review LIC-101 Rev. 3 Appendix B Section 4, EICB (Carte)

"Safety Evaluation" states: "the The SPM describes the software testing and documents that will The software testing performed and documents created are Revised response included in Due 12/22/10. information relied upon in the SE must be created. The SPM also describes the testing tasks that are to addressed by the SPM Compliance matrix contained in letter dated 12/22/10 be docketed correspondence."

be carried out. The acceptance criterion for software test Revision 1 of the Licensing Technical Report. 10/25/10 is a partial implementation is that the tasks in the SPM have been carried out Partial response is provided in response. Still waiting LIC-101 Rev. 3 states: "The safety in their entirety. Please provide information that shows that Attachment 1 of the letter dated 10/25/10 contains the letter dated 10/25/10 on Software Test Plan analysis that supports the change testing been successfully accomplished. Proprietary version of Westinghouses document titled: and all other testing requested should include technical Tennessee Valley Authority (TVA), Watts Bar Unit 2 documentation. information in sufficient detail to enable (WBN2), Post-Accident Monitoring System (PAMS), the NRC staff to make an independent Licensing Technical Report, Revision 1, WNA-LI-00058- assessment regarding the acceptability WBT-P, Dated October 2010 of the proposal in terms of regulatory requirements and the protection of TVA Response to Follow-up NRC Request: public health and safety."

Please see the response to RAI item 21 in letter dated 12/22/10, NRC Matrix Item 250.

252 8/8/2010 Responder: WEC 33. N Open Open-NRC Review LIC-101 Rev. 3 Appendix B Section 4, EICB (Carte)

"Safety Evaluation" states: "the The SPM contain requirements for software requirements Explain response to AP1000 audit report. Response included in letter Due 12/22/10 information relied upon in the SE must traceability analysis and associated documentation (see Section RTM docketed NRC awaiting V&V evaluation of RTM. dated 12/22/10 be docketed correspondence."

5.4.5.3, Requirements Traceability Analysis). Please provide information that demonstrates that requirements traceability The following responses are based on WBN Unit 2 Common Read ML091560352 Check on this Hilmes LIC-101 Rev. 3 states: "The safety analysis has been successfully accomplished. Q PAMS traceability: analysis that supports the change requested should include technical Software requirements traceability analysis is described in information in sufficient detail to enable the following documents: the NRC staff to make an independent

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N assessment regarding the acceptability

1. WNA-LI-00058-WBT-P, Revision 2, Post-Accident of the proposal in terms of regulatory Monitoring System (PAMS) Licensing Technical requirements and the protection of Report submitted in TVA Letter to NRC dated public health and safety."

December 3, 2010, (Reference 1) Section 11, TVA Contract Compliance Matrix

2. WNA-VR-00279-WBT, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Post Accident Monitoring System (available for NRC audit at the Westinghouse Rockville office)

3. WNA-VR-00280-WBT, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Reactor Vessel Level Indication System (RVLIS) Custom PC Elements (available for NRC audit at the Westinghouse Rockville office) This document addresses the RSEDs used in the WBN Unit 2 Common Q PAMS.

The V&V evaluation of the RTM is documented in section 2.2.2 of the following documents:

1. The Independent Verification & Validation (IV&V) report covering the Concept and Definition phases (Nuclear Automation Watts Bar Unit 2 NSSS Completion Program I&C Projects, IV&V Summary Report for the Post Accident Monitoring System, (Proprietary), WNA-VR-00283-WBT, Revision 1, dated November 2010), submitted in TVA Letter to NRC dated December 3, 2010 (Reference 1).

2. The Independent Verification &Validation (IV&V) report covering the Design and Implementation phases (Nuclear Automation Watts Bar Unit 2 NSSS Completion Program I&C Projects, IV&V Summary Report for the Post Accident Monitoring System, (Proprietary), WNA-VR-00283-WBT, Revision 2, dated November 2010), submitted in TVA Letter to NRC dated December 3, 2010 (Reference 1).

3. The integration phase is covered in Attachment 10, the proprietary version of IV&V Summary Report for the Post Accident Monitoring System, WNA-VR-00283-WBT-P, Revision 3, dated December 2010.

Attachment 11 contains the non-proprietary version of IV&V Summary Report for the Post Accident Monitoring System, WNA-VR-00283-WBT-NP, Revision 3, dated December 2010. Attachment 12 contains the Application For Withholding Proprietary Information From Public Disclosure WNA-VR-00283-WBT-P, Revision 3, IV &V Summary Report for the Post Accident Monitoring System (Proprietary), dated December 2010.

268 8/19/2010 Responder: WEC 34. N Open Open-NRC Review EICB (Carte

)

By letter dated March 12, 2010 (ML101680577), TVA stated that 11/18/10 Warren Odess-Gillett took action to discuss with Response included in letter Due 12/22/10

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N the application specific hardware and software architecture Design Engineering to generate a non-prop figure dated 12/3/10 descriptions are addressed in the WBN2 PAMS System Design Specification (ML101680579, ML102040481, & ML102040482) Attachment 18 contains the non-proprietary version of the and Software Requirements Specification (ML101050202, Westinghouse document Watts Bar 2 Common Q PAMS ML102040486, & ML1022040487). Block Diagram.

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.

276 7.6 7.6 8/27/2010 Responder: Webb 35. Y Open Open-NRC Review EICB RAI TVA Letter dated EICB (Garg)

ML102910008 10/21/10 In order for the staff to review the effects of multi control systems Revised response provided in Due 11/24/10 Item#60 Enclosure 1 Item failure, provide the summary of the analyses documenting the The NRC reviewer confirmed this question applies to non- letter dated 12/22/10 No. 13 effect on the plant based on the following events: (1) loss of power safety systems. TVA to provide to all control systems powered by a single power supply; (2) Response provided in letter justification for non-failure of each instrument sensor which provides signal to two or The Distributed Control System (DCS) implemented using dated 10/21/10 safety system other more control systems; (3) Break of any sensor impulse line which Foxboro I/A hardware, replaces most of the non-safety than DCS.

is used for sensors providing signals to two or more control related control systems for WBN Unit 2. The other non- Revised response provided in systems; and (4) failure of digital system based on the common safety-related control systems within the scope of this letter dated 11/24/10 The statement that cause software failure affecting two or more control systems. For question are: failure of sense line each of these events, confirm that the consequences of these Response Acceptable. 11/17/10 where more than one events will not be outside chapter 15 analyses or beyond the a. Rod Control - Failures of this system are addressed in transmitter is connected capability of operators or safety systems. FSAR Chapter 15. would be bounded by

b. Main Turbine Electro-Hydraulic Control System TVA changed the response in the failure of a single the latest writeup. The scope of transmitter does not The following provides the requested summaries for the four the question applies to all non make sense.

events listed: safety related control systems and is not limited to just three TVA needs to make a (1) The (DCS) segmentation analysis submitted on TVA system listed by the TVA. TVA statement that all non-letter to NRC dated August 11, 2010, Enclosure 2 could use to envelope other safety control systems (Reference 7) demonstrates that the loss of any single control systems by Unit 1 have been evaluated power source does not result in a loss of any DCS analysis if they applies to Unit 2 against these criteria function. The other systems within the scope of this systems also. and have determined question are configured in the same manner as Unit 1, that their failure does with redundant power sources such that the failure of a not have consequences single power source does not cause a loss of function. which will put the plant outside chapter 15 (2) Signals shared by more than one control function analyses.

within the DCS are addressed in the DCS segmentation analysis submitted on TVA letter to NRC dated August 11, 2010, Enclosure 2 (Reference 7) which demonstrates that the loss of a single signal does not cause a failure of any critical control function.

The impact of a loss of signal to the other systems within the scope of this question is bounded by the loss of that signal to the individual system and has the same effect as for Unit 1.

(3) Where feasible, the Unit 2 design includes separate sense lines for redundant transmitters, thereby eliminating multiple single point failures which are present in Unit 1. A review of the transmitter sense line database was performed to identify multiple sensors on a single sense line that had control functions (transmitters and switches). Attachment 9 provides the results of the review and an analysis of the functions impacted by a sense line failure.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N There are no transmitters on shared sense lines, such that a sense line failure would impact any combination of the DCS, Rod Control or Main Turbine Electro-Hydraulic Control Systems.

(4) Limiting DCS failures were addressed in the segmentation analysis, supplemented by Fault Handling in the I/A Series System, Revision 1, submitted on TVA letter to NRC dated October 5, 2010, Attachment 42 (Reference 1). The other systems within the scope of this question are analog and therefore this question is not applicable.

All non-safety control systems have been evaluated against these criteria and TVA has determined that their failure does not have consequences which will put the plant outside chapter 15 analyses.

TVA Response to Follow-up NRC Request:

All non-safety related control systems were reviewed in the context of this question. The review found that failures of non-safety related control systems based on the scenarios in this RAI, do not have consequences which will put the plant outside the Chapter 15 analyses.

301 1.TVA is requested to address the consequences of software Responder: WEC/Davies/Clark 36. N Open Open-NRC Review RAI No. 11 TVA Letter dated Note 1:

common cause failure including all potential resulting failures (i.e. ML102980005 10/29/10 total loss of CERPI, system fail as-is). TVA Partial Response: Revised response included in Due 12/22/10 10/26/2010 Enclosure 1 Item Effects of common cause software letter dated 12/22/10. No. 21 failure are addressed in DI&C-ISG-02

2. In addition, address how the actions stipulated in the plant For all accidents analyzed in WBN Unit 2 FSAR, Chapter 15, 1) Please address (ML091590268) Section 4 on pages 8 Technical Specifications will be taken when the CERPI system no credit is taken for the rod position indication system. For Revised response included in how fail-as-is is and 9. This document is publically indications are lost. Information notice IN 2010-10 (ML100080281) all continuous rod withdrawal accidents analyzed in WBN letter dated 11/24/10. detected i.e. available. Some excerpts are as addresses the need to consider software failures and the actions Unit 2 FSAR, Chapter 15, no credit is taken for any rod alarms, rod follows:

required to assure that the plant will stay within its licensing basis. stop/block. Partial response in 10/29 letter. position deviation alarms, etc. For example, a failure to trip might

3. Provide FMEA in support of your response. (1) Technical Specification 3.1.8, Rod Position Indication, 2) Response not be as limiting as a partial does not have an action for total loss of indication; acceptable. actuation of an emergency core

4. FSAR Table 7.7-1, Plant Control System Interlocks lists interlock therefore, a total loss of CERPI puts the plant into LCO 3) Response cooling system, with digital indications of a successful actuation.

C-11 to block automatic rod withdrawal when 1/1 Control Bank D 3.0.3 which states: acceptable. In cases such as this, it may take an rod position is above setpoint. This interlock capability would be 4) a. Response operator longer to evaluate and EICB (Singh) lost in case of total loss of CERPI. How is the rod block assured When an LCO is not met and the associated ACTIONS acceptable. correct the safety system failure than for this event? are not met, an associated ACTION is not provided, or if b. Pl. address it would if there was a total failure to directed by the associated ACTIONS the unit shall be failure mode on send any actuation signal. For this

5. How is automatic rod withdrawal affected in case of total loss of placed in a MODE or other specified condition in which fail-as-is. reason, the evaluation of failure signals from the CERPI to the ICS? Is this interlock fail safe? the LCO is not applicable. Action shall be initiated within 5) Response modes as a result of software CCF 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 applicable, in: acceptable. should include the possibility of 6.FSAR chapter 15, Section 2.3.2.1states that the resolution of the 6) Response partial actuation and failure to actuate with false indications, as well rod position indicator channel is 5% of span (7.2 inches). The MODE 3 within 7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />; acceptable.

as a total failure to actuate.

CERPI system accuracy specified in the CERPI System MODE 4 within 13 hours1.50463e-4 days <br />0.00361 hours <br />2.149471e-5 weeks <br />4.9465e-6 months <br />; and requirements Specification, WNDS-DS-00001_WBT, Rev. 2 is 12 MODE 5 within 37 hours4.282407e-4 days <br />0.0103 hours <br />6.117725e-5 weeks <br />1.40785e-5 months <br />. TVA to address The primary concern is that an steps or 5.19%. The specified system accuracy seems to be common cause failure undetected failure within the digital greater than the accuracy assumed in the FSAR Chapter 15. as stated under system could prevent proper system Please clarify this anomaly. Exceptions to this Specification are stated in the response item 2. operation. A failure or fault that is individual Specifications. Where corrective measures detected can be addressed; are completed that permit operation in accordance with Please explain how however, failures that are non-the LCO or ACTIONS, completion of the actions various alarms will detectable may prevent a system actuation when required.

required by LCO 3.0.3 is not required. continue to annunciate Consequently, non-detectable faults on software lockup? are of concern.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N (2) CERPI common mode software failure Need better explanation to Description of the CERPI systems installed at Watts understand the Bar (Unit 1 & 2): rationale behind the response.

Each Programmable Logic Controller (PLC),

Maintenance Test Panel (MTP), and Operators Module Further response (OM) is isolated within its own Train, A or B. Rod required to address position information is provided to the OMs in the main CCF:

control room via redundant data links. Each train (PLC, MTP, and OM) is electrically isolated from the other Total failure of train. software and lock-up alone would normally Communications within a CERPI train (PLC, MTP, and be detected. Staff is OM) are continuously monitored. If communication is also concerned by interrupted, this condition is annunciated to the operator undetected failure in the control room. The MTP and OM display screens within the digital have rotating cursors in the upper right-hand corner of system that could the display to indicate that the system is operating. prevent proper system operation. A failure or History of CERPI: fault that is detected can be addressed; The basic PLC software associated with the CERPI however, failures that system has been in use for over ten years. The first are non-detectable plant to utilize the CERPI PLC software was Beaver may prevent a system Valley. In 2003, the CERPI software was deployed with actuation when interfaces to the Common Q MTP and OM interfaces required or may result within the systems for Surry Units 1 & 2, and Watts Bar in a partial actuation.

Unit 1. In 2009, the Watts Bar Unit 1 CERPI system Please address the was modified to allow for two independent trains of consequences of an CERPI. The Watts Bar Unit 2 CERPI system is based undetected failures on on the Unit 1 design. Only the detectors and the system operation and detector interface boards are not redundant within the alarms and interlocks Watts Bar CERPI systems. including control bank D interlock. (See note CERPI Software Failure Analysis 1 in the Comments column of this open With regard to the CERPI system software: item for reference)

• The software used on PLC-A is identical to that used on PLC-B.

• The software used on MTP-A is identical to that used on MTP-B

• The software used on OM-A is identical to that used on OM-B.

A common cause failure affecting the software of one CERPI train would affect the other train as well.

Common cause problems associated with the CERPI software were mitigated by the Westinghouse software development process, factory acceptance testing, and site acceptance testing. There is no "fail as-is" scenario. Any failure of a hardware/software component (resulting in processor lock-up) would be immediately annunciated (Main Control Room alarm).

A loss of communication to the MTP, or OM would be annunciated, and the data values on the flat panel display would be displayed in magenta (indicating

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N failure). A hardware/software failure in the PLC (resulting in processor lock-up) would result in an annunciator because of the watchdog alarm circuit associated with the PLC processor module.

A total loss of CERPI indication (e.g., loss of both AC power sources to the rod position cabinets) is possible, but this condition would be immediately annunciated. A complete loss of CERPI indication would lead to entering Technical Specification LCO 3.0.3. A more likely scenario would be loss of a single train of CERPI due to a hardware failure; in which case, there are no technical specification conditions to enter because a single train is capable of providing all rod indications needed for control.

(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

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Response

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

TVA Response to Follow-up NRC Request:

1. The following response is based on the information contained in Westinghouse letter WBT-D-2722 Response To Question On CERPI RAI #301, dated December 6, 2010 (Reference Error!

Reference source not found.).

TVA believes the follow-up question is related to the statement found in the response to question 2 of NRC Matrix Item 301, submitted on TVA Letter to NRC Watts Bar Nuclear Plant (WBN) Unit 2 -

Instrumentation and Controls Staff Information Requests, dated November 24, 2010, (Reference Error! Reference source not found.)

Any failure of a hardware/software component (resulting in processor lock-up) would be immediately annunciated (Main Control Room alarm)

The CERPI system will not annunciate various system alarms if the software is in a lockup condition.

However, the system will annunciate an alarm based on the PLC watchdog relay dropping out because the software has locked up the processor. So, even if the PLC locks up, an alarm is generated to alert the operators in the Main Control Room (MCR).

The CERPI system alarms (that connect to the plant annunciator system) are wired to specific alarm relays within the CERPI system. With the exception of the watchdog alarm relay, the alarm relay coils are actuated by the PLC Digital Output Module. The plant annunciator wiring connects to either the Normally Open (NO) or the Normally Closed (NC) contacts of the associated alarm relay. The watchdog relay is configured such that when a timeout condition occurs (the PLC locks up), the watchdog relay de-energizes, and a CERPI System Trouble alarm is annunciated in the MCR.

2. As previously stated;

a. For all accidents analyzed in WBN Unit 2 FSAR, Chapter 15, no credit is taken for the rod position indication system. For all continuous rod withdrawal accidents analyzed in WBN Unit 2

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N FSAR, Chapter 15, no credit is taken for any rod stop/block. Based on this, an undetected failure of the CERPI would not have any impact on the WBN Unit 2 accident analysis.

b. Concerning the impact on Bank D, 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.

Therefore, this would not result in an undetected failure. In the event of an undetected failure that kept relays A-KX-18 and B-KX-18 energized, the worst case scenario would be a continuous rod withdrawal event. This event is already addressed in the Chapter 15 accident continuous rod withdrawal accident analysis which takes no credit for rod stops/blocks.

306 7.1 7.1 FSAR amendment 100, page 7.1-12 provides the definition of Responder: Hilmes 37. Y Open Open-NRC Review EICB RAI TVA Letter dated Allowable value which is not consistent with TSTF-493 as ML102910008 10/29/10 EICB (Garg) allowable value is the value beyond which instrument channel is The FSAR Allowable Value definition will be revised to be Response is included in letter Due 12/17/10 Item#69 Enclosure 1 Item declared inoperable. consistent with the TSTF-493 in FSAR Amendment 102. dated 10/29/10 No. 26 Attachment 3 contains the revised FSAR section 7.1.2.1.9 Pending FSAR that will be included in FSAR Amendment 102 that reflects Amendment 102 this change. submittal 307 7.1 7.1 (1) FSAR amendment 100, Section 7.1, page 7.1-12, definition of Responder: Hilmes 38. Y Open Open-NRC Review EICB RAI TVA Letter dated Acceptable as found tolerance is not in accordance with TSTF-493 ML102910008 10/29/10 as AAF is the limit beyond which the instrument channel is (1) The Acceptable As Found (AAF) definition will be Response is included in letter Due 12/17/10 Item#70 Enclosure 1 Item degraded but may be operable and its operability must be revised to be consistent with TSTF-493 in FSAR dated 10/29/10 No. 27 evaluated. (2) Also it states that AAF is based on measurable Amendment 102. Attachment 3 contains the revised Pending FSAR instrument channel uncertainties, such as drift, expected during the FSAR section 7.1.2.1.9 that will be included in FSAR Amendment 102 surveillance interval. These wording should be revised to agree Amendment 102 that reflects this change. submittal with the wording given in RIS2006-17 as these wordings are very vague. (3) Also it states that RPS functions use double sided (2) Additional detail on the AAF methodology was provided tolerance limits for the AAF. Since AAF is a band it will always be in sections 7.1.2.1.9.1, Westinghouse Setpoint double sided and therefore, this clarification does not mean Methodology, and 7.1.2.1.9.2, TVA Setpoint anything and it clouds the issue. Methodology. These sections will be revised to clarify EICB (Garg) the 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 CB (1) FSAR Amendment 100, Section 7.1, page 7.1-13, definition of Responder: Hilmes 39. Y Open Open-NRC Review EICB RAI TVA Letter dated (G

ar Acceptable as left tolerance is not in accordance with TSTF-493 as ML102910008 10/29/10

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N it states that this may take calibration history into consideration. (1) The statement about using calibration history to Response is included in letter Due 12/17/10 Item#71 Enclosure 1 Item This is very vague and ambiguous. (2) Also it states that RPS determine the Acceptable As Left (AAL) will be deleted dated 10/29/10 No. 28 functions use double sided tolerance limits. Since ALF is a band it in FSAR Amendment 102. Attachment 3 contains the Pending FSAR will always be double sided and therefore, this clarification does revised FSAR section 7.1.2.1.9 that will be included in Amendment 102 not mean anything and clouds the issue. FSAR Amendment 102 that reflects this change. submittal (2) See response to letter item 27 (NRC Matrix Item 307).

309 7.1 7.1.2.1. (1) FSAR amendment 100, Page 7.1-14, Westinghouse setpoint Responder: Hilmes 40. Y Open Open-NRC Review EICB RAI TVA Letter dated 9.1 methodology, states that AAF is the algebraic sum of the .. This ML102910008 10/29/10 is not acceptable. As algebraic sum is non conservative compared (1) The AAF calculation for Westinghouse setpoint Response is included in letter Due 12/17/10 Item#72 Enclosure 1 Item to the SRSS method and will mask the operability of the instrument methodology calculations in TI-28 for TSTF-493 will be dated 10/29/10 No. 29 channel and therefore, it is not acceptable to the staff. (2) It also revised to use the Square Root Sum of the Squares Pending FSAR EICB (Garg) make the statement that ALT may take calibration history into (SRSS) method. Amendment 102 consideration which is vague and ambiguous. submittal (2) AAF definition will be revised to be consistent 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. (1) FSAR amendment 100, Page 7.1-14, TVA setpoint Responder: Hilmes 41. Y Open Open-NRC Review EICB RAI TVA Letter dated 9.2 methodology, states that for AAF .and other measurable ML102910008 10/29/10 uncertainties as appropriate (i.e., those present during TVA Response: Response is included in letter Due 12/17/10 Item#73 Enclosure 1 Item calibration.) should be changed to present during normal dated 10/29/10 No. 30 operation (2) Also on page 7.1-15, states that ALT may take (1) The AAF definition will be revised in FSAR Amendment Pending FSAR calibration history into consideration which is vague and 102 to read: Amendment 102 ambiguous. submittal A tolerance band on either side of the NTSP which defines the limits of acceptable instrument performance, beyond which the channel may be considered degraded and must be evaluated for operability prior to returning it to service. Channels which exceed the AAF will be entered into the Corrective Action Program for further evaluation and trending. The Acceptable As Found tolerance is the SRSS combination of drift, maintenance and test equipment (M&TE) accuracy and readability, and calibration/reference accuracy. Other uncertainties EICB (Garg) may be included in the AAF if applicable.

This revision eliminates the concern regarding uncertainties. Attachment 3 contained in the October 29, 2010 letter provided the revised FSAR Section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.

(2) The AAL definition will be revised in FSAR Amendment 102 to read:

A tolerance band on either side of the NTSP within which an instrument or instrument loop is left after calibration or setpoint verification. The Acceptable As Left tolerance is equal to or less than the SRSS combination of reference accuracy, M&TE accuracy and M&TE readability. Other uncertainties may be included in the AAL if applicable.

This revision eliminates the concern regarding calibration history. Attachment 3 contained in the

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N October 29, 2010 letter provided 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 Both Westinghouse and TVA setpoint methodology do not have Responder: Hilmes 42. Y Open Open-NRC Review EICB RAI TVA Letter dated any discussion on single sided calculation. Please confirm that ML102910008 10/29/10 EICB (Garg) single sided calculation has not been used for all setpoints with A statement that single-sided corrections are not used for Response is included in letter Due 12/17/10 Item#74 Enclosure 1 Item TSTF-493 and provide a statement to that effect in the FSAR. TSTF-493 setpoints will be included in FSAR Amendment dated 10/29/10 No. 31 102. Attachment 3 contains the revised FSAR section Pending FSAR 7.1.2.1.9 that will be included in FSAR Amendment 102 that Amendment 102 reflects this change. submittal 318 7.5.2.3 7.5 TVA has provided the following documents for RM-1000 Responder: Temples 43. N Open Open-NRC Review RAI No. 28 TVA Letter dated equipment qualification: ML102980005 10/29/10 Revised response is included in Due 12/22/10 10/26/2010 Enclosure 1 Item (i) Qualification Test Report for RM-1000 Processor Module letter dated 12/22/10. No. 34 and Current-To-Frequency Converter 04508905-QR (i) Applicable to WBN Unit 2. 04508905-1QR is Response update (January 2001) applicable only in regards to the RM-1000, with the Note check 04508905-1QR or required. It is clear that (ii) Qualification Test Report Supplement, RM-1000 Upgrades exception of re-qualification of certain RM-1000 QR. Staff version is QR only. 04508903-2SP and -

04508905-1SP (June 2006) equipment differences covered in the -1SP report. 3SP are not applicable.

(iii) Qualification Test Report Supplement, RM-1000 Upgrades The Current-to-Frequency (I-F) converter module Response is included in letter The response for 04508905-2SP (June 2008) qualifications in the base report and the -1SP report dated 10/29/10 applicability of (iv) Qualification Test Report Supplement, RM-1000 Upgrades are not applicable to the RM-1000s, and will be used 04508905-QR and -

04508905-3SP (May 2008) later as references in the WBN Unit 2 specific 1SP to RM-1000 and IF qualification reports. converter is not clear.

Please clarify whether all of these are fully applicable to WBN2 or are they applicable with exceptions? If with exceptions, then (ii) Applicable to WBN Unit 2. Check page numbers of please clarify what those are. Appendix F (iii) Not applicable to WBN Unit 2 (missing/duplicate Supplement 3 was issued one month prior to supplement 2. (iv) Not applicable to WBN Unit 2 pages).

Please explain the reason for the same. Check applicability of Appendix C to RM1000 instead of RM2300?

The 04508905-3SP report was prepared for another TVA See items 336 and 337.

EICB (Singh) plant, as a monitor system-level report, where the system included equipment mostly based on the base report All equipment equipment items. These two -2SP and -3SP supplement qualification reports reports were essentially worked concurrently, but the -2SP including supplements document review/release process resulted in the release 2SP and 3SP have time difference. been reviewed as vendor drawings for WBN-2. Please explain the reason for TVA Response to Follow-up NRC Request: applicability of one report and not the NOTE: The response for the current to frequency (I to F) other.

converter in item 1 below is a reversal of the response previously provided in TVA to NRC letter Further all TVA/Bechtel dated October 29, 2010 (Reference 22). General reviews seems to be Atomics Electronic Systems Inc. (GA-ESI) notified dispositioned as Code TVA of this change on December 8, 2010 4, Review not required.

(Reference 20). Work may proceed.

The applicable reports should have been (1) The applicability of the qualification reports from GA- reviewed prior to ESI e-mail dated December 10, 2010 (Reference 19) is dispositioning them.

as follows: Please explain the apparent lack of review

a. 04508905-QR Qualification Test Report for RM-of WBN-2 applicable 1000 Processor Module and Current-to-documents. Was

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Frequency Converter is applicable to the WBN appropriate review Unit 2 RM-1000 and I to F converter modules. guidance used?

b. 04508905-1SP Supplement to Qualification Test Further update required Report for RM-1000 Processor Module and Current-to-Frequency Converter is applicable to Provide model the WBN Unit 2 RM-1000 module. number/part number for the RM-1000 and I/F

c. 04508905-1SP is not applicable to the WBN Unit converter used for 2 I to F converter module. WBN-2.

d. 04508905-2SP Qualification Test Report Submit a copy of the Supplement, I-F Converter Upgrades is relevant reviewed applicable to the WBN Unit 2 I to F converter versions of the module. qualification reports.

GA-ESI provided two other reports required to support qualification of the containment high range radiation monitors. The report descriptions are from GA-ESI e-mail on December 8, 2010 (Reference 20). The reports are:

e. GA-ESI report 04038903-QSR, Qualification Summary Report for Watts Bar Nuclear Plant Unit 2 Replacement Radiation Monitors: The report is the principle report and the starting point for all the radiation monitors provided as part of the replacement contract. The report describes each monitor; referenced to the technical manual for the physical and functional description and lists the major components of the monitor system.

Report section 3 identifies the TVA Watts Bar Unit 2 Environmental, Seismic, Electromagnetic Compatibility (EMC), and software requirements for each monitor. In section 4 a brief description of GA-ESI generic qualification programs for all radiation monitoring equipment in each of the four above areas is provided. The qualification basis for each monitor is provided in a separate supplement to the principle report and is identified in section 5.

f. GA-ESI report 04038903-7SP, Qualification Basis for 04034101-001 (2-RE-90-271, -272, -

273, & -274) [TVA Note: These are the containment post accident high range radiation monitors.]: GA-ESI report 04038903-7SP is divided into subsections to address the Environmental, Seismic, EMC, and Software qualification basis for the High Range Area Monitors. Within each subsection, the HRAM is compared to a tested or analyzed article to demonstrate similarity and/or evaluate differences, the tests that were performed, and evaluation to demonstrate qualification. In most cases, the qualification basis references other documents. In addition to qualification, a section is provided that lists the life of those replaceable components that have life expectancy less than

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 40 years.

(2) This is addressed by response to RAI Question 336 in TVA to NRC letter dated November 24, 2010 (Reference 8)

(3) This is addressed by response to RAI Question 337 in TVA to NRC letter dated November 24, 2010 (Reference 8)

(4) The 04508905-3SP Qualification Test Report Supplement, RM-1000 Upgrades is not applicable to WBN Unit 2 (Reference 19).

Please see Item 1, above, for applicability of the other reports.

(5) TVA provided the proprietary versions of the reports by letter dated March 12, 2010 (Reference 10). By letter dated July 15, 2010 (Reference 23), TVA provided the non-proprietary version of the reports and included a copy of the proprietary report which had been erroneously marked as having not been reviewed.

04508905-QR report has been reviewed by TVA. The review of the remaining reports is ongoing.

(6) See item 5.

326 TVA uses double-sided methodology for as-found and as-left Responder: Webb 44. Y Open October 22, 2010 Open-NRC Review TVA Letter dated Reactor Trip and ESFAS instrument setpoint values. The FSAR 10/29/10 EICB(Garg) will be revised in a future amendment to reflect this methodology Attachment 3 contains the revised FSAR section 7.1.2.1.9 Response is included in letter Due 12/17/10 Enclosure 1 Item that will be included in FSAR Amendment 102 that reflects dated 10/29/10 No. 37 this change. Pending FSAR Amendment 102 submittal 327 Attachment 36 contains Foxboro proprietary drawings 08F802403- Responder: Webber 45. Y Open Open-NRC Review SC-2001 sheets 1 through 6. An affidavit for withholding and non-DORL (Poole) proprietary versions of the drawings will be submitted by January In accordance with correspondence from Foxboro, there is Response Included in letter Due 11/24/10 31, 2011. no proprietary information contained in the 08F802403-SC- dated 11/24/10 2001 drawings. Based on this, no affidavit for withholding is required. Attachment 1 contains versions of the drawings with the proprietary information block removed.

329 7.6.1 7.6.7 Section 7.6.7 of the FSAR (Amendment 100) states that, The Responder: Clark 46. N Open Open-NRC Review RAI No. 1 TVA Letter dated EICB (Singh)

DMIMS-DX' audio and visual alarm capability will remain ML102980005 10/29/10 functional after an Operating Basis Earthquake (OBE). All of the The title of FSAR Section 3.10 is Seismic Design of Response is included in letter 10/26/2010 Enclosure 1 Item DMIMS-DX' components are qualified for structural integrity Category I Instrumentation and Electrical Equipment. Since dated 10/29/10 Due 12/17/10 No. 39 during a Safe Shutdown Earthquake (SSE) and will not the Loose Part Monitoring System is not a Category 1 mechanically impact any safety-related equipment. system, it is not included in the scope of 3.10. FSAR Section Pending FSAR 7.6.7, Loose Parts Monitoring System (LPMS) System Amendment 102 TVA to clarify the seismic qualification of the loose parts monitoring Description, identifies basic system seismic design criteria submittal.

system and include the appropriate information in Table 3.10 (or which are consistent with the requirements of TVA Design another suitable section) of the FSAR. Criteria, WB-DC-30-31, Loose Parts Monitoring System. As TVA to confirm that the identified in FSAR Table 7.1-1, Watts Bar Nuclear Plant NRC equipment has been Regulatory Guide Conformance, the system conforms to seismically qualified as Reg. Guide 1.133 as modified by Note 12. Reg. Guide 1.133 required and that TVA identifies the seismic requirements and Note 12 does not reviewed and found the contain any exception to the Regulatory Guide seismic report acceptable.

requirements.

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N TVA response does not The Westinghouse LPMS seismic report, EQ-QR-33-WBT, list the seismic test Revision 0, Seismic Evaluation of the Digital Metal Impact document and its Monitoring System (DMIMS-DXTM) for Watts Bar Unit 2, will acceptance by TVA.

be added as Reference 7 to FSAR section 7.6 in amendment FSAR should reference 102. the test document as the source document for tracking conformance.

331 7.6.1 7.6.7 As a follow up of OI 190, Staff has reviewed the proprietary version Responder: WEC/Harless/Clark 47. N Open Open-NRC Review RAI No. 8 TVA Letter dated Follow-up of OI-190.

of the DMIMS-DX system description to verify the conformance ML102980005 10/29/10 claims in the FSAR. Staff has noted the following insufficiencies TVA Partial Response: Response included in letter Due 12/22/10 10/26/2010 Enclosure 1 Item and discrepancies between the FSAR and the proprietary version dated 12/22/10 No. 40 of the system description for loose parts monitoring system 1) The source of the information is the DMIMS-DXTM Pending FSAR provided by TVA. Operations and Maintenance Manual, TS3176, Revision Amendment 102 0, dated August 2010. Attachment 14 contains the submittal

1) FSAR, Amendment 100, page 7.6-5 states, During baseline revised system description, Westinghouse DIMMS-testing, the reactor vessel and steam generator are impacted DXTM Loose Part Detection System Description, TVA to reference the three feet from each sensor with a force of 0.5 ft-lb. Loose Revision 1. The Westinghouse DIMMS-DXTM Loose DMIMS-DXTM parts detection is accomplished at a frequency of 1 kHz to 20 Part Detection System Description, Revision 1 will be Operations Manual in kHz, where background signals from the RCS are acceptable. added as Reference 9 to section 7.6 in FSAR the FSAR as the source Spurious alarming from control rod stepping is prevented by a Amendment 102. document module that detects CRDM motion commands and automatically inhibits alarms during control rod stepping. 2) The source of the information is the DMIMS-DXTM TVA to reference the seismic qualification report, Westinghouse report EQ- source document for The online sensitivity of the DMIMS-DX' is such that the QR-33-WBT, Revision 0, Seismic Evaluation of the item# 4 per the system will detect a loose part that weighs from 0.25 to 30 Ib Digital Metal Impact Monitoring System (DMIMS-DXTM) response.

and impacts with a kinetic energy of 0.5 ft-lb on the inside for Watts Bar Unit 2. Attachment 14 contains the surface of the RCS pressure boundary within 3 ft of a sensor. revised system description, Westinghouse DIMMS-DXTM Loose Part Detection System Description, The source of this information is not cited nor is it described in Revision 1.

the system description. TVA to provide the source of the information and update the system description as needed. 3) The entries for the following items in FSAR Section 7.6.7 will be modified in Amendment 102 as shown in

2) Regulatory Guide (RG) 1.133, rev.1, regulatory position C.1.g Attachment 3 for draft revision to WBN Unit 2 FSAR states that, Operability for Seismic and Environmental Section 7.6.7, Loose Part Monitoring System (LPMS)

Conditions. Components of the loose-part detection system System Description.

within containment should be designed and installed to perform their function following all seismic events that do not Sensors (In Containment) require plant shutdown, i.e., up to and including the Operating Softline Cable (In Containment)

Basis Earthquake (OBE). Recording equipment need not Preamplifier (In Containment) function without maintenance following the specified seismic event provided the audio or visual alarm capability remains Attachment 3 contains the FSAR Amendment 102 functional. The system should also be shown to be adequate Change Markups that reflect these changes.

by analysis, test, or combined analysis and test for the normal operating radiation, vibration, temperature, and humidity 4) The source of the information is Westinghouse Letter environment. WBT-D-2580, Tennessee Valley Authority Watts Bar Nuclear Plant Unit 2 Response to NRC RAIs on LPMS FSAR, Amendment 100, page 7.6-5 states, The DMIMS- (Reference 5). Attachment 14 contains Westinghouse DX' audio and visual alarm capability will remain functional DIMMS-DXTM Loose Part Detection System after an Operating Basis Earthquake (OBE). All of the Description, Revision 1.

DMIMS-DX' components are qualified for structural integrity during a Safe Shutdown Earthquake (SSE) and will not In responding to Item 4, conflicting information was mechanically impact any safety-related equipment. found between the Westinghouse-prepared FSAR EICB (Singh)

Paragraphs 4.c and 4.d of the system description are not section and various Westinghouse technical consistent with the seismic qualifications described in the documents. To fully respond to this item, a change to FSAR. TVA to provide the source of the information the FSAR is required to change the minimum flat sensor contained in the FSAR and update the system description as frequency response from 5 Hz to 10 Hz. Attachment 3

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N needed. contains the FSAR Amendment 102 Change Markups that reflect the revised frequency response of the

3) The system description clearly describes the In-containment sensor.

equipment and DIMMS-DX Cabinet equipment. The FSAR should be updated to reflect the equipment locations for Westinghouse document 1TS3182, Revision 0, Watts clarification purposes. Bar Unit 2 DMIMS-DXTM System Validation Data Package, dated July 2010 has been added as reference

4) The information regarding frequency ranges of the sensors is 8 to FSAR Section 7.6 in amendment 102. Per included on page 7.6-6 of Amendment 100 of the FSAR but Westinghouse letter WBT-D-2580, this document will be the system description does not contain this information. revised to reflect the 10Hz minimum frequency and Please provide the source of this information and update the provide the basis for the frequency response values in system description to reflect the appropriate information. the FSAR.

5) Please provide information as to how the in-containment 5) In-containment component qualification for vibration as components are qualified for vibration as addressed in addressed in regulatory position C.1.g of RG 1.133, will regulatory position C.1.g of RG 1.133. be addressed in a future RAI response letter.

TVA Partial Response:

Items 1) through 4) were addressed in the partial response provided in TVA to NRC letter dated October 29, 2010. Item 5 is addressed as follows:

TVA has reviewed the information provided by Westinghouse describing how the Loose Part Monitoring System (LPMS) sensor is qualified for normal operating conditions provided in Westinghouse letter WBT-D-2782, dated December 17, 2010 (Reference 11) as addressed in regulatory position C.1.g of Reg. Guide 1.133 and found it acceptable. Vibration qualification is not applicable to the softline cable. Due to the installation location (junction boxes mounted to the shield or fan room walls) and previous seismic qualification, vibration qualification of the charge converter/preamplifier is not required. This completes the response to this item.

334 7 7 FSAR Figure 7A-3 Mechanical Flow and Control Diagram Responder: Stockton 48. Y Open Open-NRC Review RAI not required. N/A RAI not required because the figure is Symbols doesnt show the symbols for the first column of valves. not part of any SE section.

EICB (Darbali)

Please correct this in a future FSAR amendment. Figure will be corrected in FSAR Due 12/17/10 Amendment 102.

Pending FSAR Amendment 102 submittal.

335 7.6.1 7.6.7 LPMS: Reference to OI-331, sub item 2. Responder: WEC 49. N Open Open-NRC Review Provide analysis, test, or combined analysis and test for normal TVA has reviewed the information provided by Partial Response included in Due 12/22/10 operating radiation, temperature, and humidity environment per Westinghouse describing how the Loose Part Monitoring letter dated 12/22/10 EICB (Singh) regulatory position C.1.g of RG 1.133. As an alternate TVA may System (LPMS) sensor is qualified for normal operating confirm that the required equipment has been qualified for the conditions provided in Westinghouse letter WBT-D-2782, environments stated in RG 1.133, position C.1.g and that TVA has dated December 17, 2010 (Reference 11) as addressed in reviewed the test report and found it acceptable. regulatory position C.1.g of Reg. Guide 1.133 and found it acceptable. The qualification information on the softline cable and charge converter/preamplifier is being assembled and will be submitted by March 11, 2011.

340 7.5.2.3 7.5 Provide test result curves for all EMI/RFI tests listed in Table 3.2.3 Responder: GA 50. N Open Open-NRC Review EICB (page 3-8) of the Qualification Test Report 04508905-QR. In (Singh) addition, please provide the standards or the guidance documents The following responses are based on e-mail: GA-ESI to Response included in letter Due:12/22/10 used as the source for ENV 50140, ENV 55011 Class A, and EN Bechtel, dated December 8, 2010 (Reference 20), dated 12/22/10.

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 55022 Class B.

(1) The EMI/RFI tests described in Table 3-2 are based on GA-ESI report 04509050 and are summarized in GA-ESI report 04508905-QR. The independent laboratory report, with curves, is part of GA-ESI report 04509050.

Subsequent to issuing GA-ESI report 04508905-QR additional EMC testing was performed in accordance with TVA specific requirements. The results of the subsequent EMC testing are reported in GA-ESI report 04038800. GA-ESI report 04038800 includes the test curves and the report is used as the basis for EMC qualification of the Upper and Lower Inside Containment Post Accident Radiation Monitors (2-RE-90-271 through -274). The results of the testing and the acceptability of the RM-1000 monitors for use at WBN Unit 2 are addressed in GA-ESI report 04038903-7SP. This report will be submitted no later than January 28, 2010.

(2) ENV 50140, EN 55011, and EN 55022 are British Standard Institution (BSI) publications concerning equipment electromagnetic and radio frequency performance. The standard titles are shown below:

a. ENV 50140 - Electromagnetic Compatibility -

Basic Immunity Standard - Radiated Radio-Frequency Electromagnetic Field - Immunity Test

b. EN 55011 - Industrial, scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement

c. EN 55022 - Information technology equipment -

Radio disturbance characteristics - Limits and methods of measurement 341 7.5.2.3 7.5 FSAR Tables 3.10 list seismically qualified equipment. However, A review of WBN Unit 2 FSAR amendment 102 chapters 51. Open Open-NRC Review these tables do not list the containment high range radiation 3.10, 11 and 12 was performed. The reviewer was unable to monitors. Please add them to the appropriate FSAR table(s) or locate seismic qualification information for the radiation justify why they should not be included in the FSAR 3.10 series of monitoring system in those chapters. A review of chapter EICB (Singh) tables. 3.11 confirmed that radiation monitoring is included in the environmentally qualified systems.

It appears that seismic qualification of the radiation monitoring equipment was unintentionally omitted from FSAR chapter 3.10. FSAR chapter 3.10 will be updated to include the qualified radiation monitoring equipment in a future FSAR amendment.

342 7.5.2.3 7.5 Please confirm that RM-1000 monitors and the associated The RM-1000 containment high range radiation monitors are 52. Open Open-NRC Review equipment is supplied power from redundant battery backed class powered from 2-RM-90-271 & 2-RM-90-273 - Vital Power EICB 1E power sources. Board 2-III Breaker 45 Train A and 2-RM-90-272 & 2-RM (Singh) 274 - Vital Power Board 2-IV Breaker 47 Train B. The vital power boards are battery backed.

343 7.5.2.3 7.5 Seismic RRS in the 04508905-QR report Figures 3-2 and 3-3 (1) The cause of the difference between the RRS and TRS 53. Open Open-NRC Review show Required Response Spectra (RRS) to be greater than 20 was a test equipment failure at the test facility. When EICB (Singh) gs. The Test Response Spectra (TRS) in Figures 4-11 and 4-12 the test equipment failed, the facility was unable to use appears to be limited to about 15 g maximum. Please explain this the table capable of 20gs. Rather than delay testing apparent lack of consistency between the RRS and the TRS. Will for six months, the facility proposed and GA-ESI this document be revised to take care of this inconsistency? agreed to use a smaller table with a lower capability.

The justification was that the resulting TRS would still

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N envelope the majority of US nuclear plants RRS.

(2) To TVAs knowledge GA-ESI does not plan to revise this report. This is a baseline report that is used as a basis for producing individual plant specific reports.

092 5/20/2010 Responder: Hilmes 1. Y Open Open-TVA Continuous review as items are added DORL (Poole) TVA to review Licensee Open Item list and determine which items This item will close when we are no longer using this Due: SER Issue are proprietary. document as a communications tool.

323 WCAP-13869 revision 1 was previously reviewed under WBN Unit Responder: Hilmes/Unit 1 1. Y Open Open-TVA Unit 1 TVA Letter dated 1 SER SSER 13 (Reference 8). Unit 2 references revision 2. An 10/29/10 analysis of the differences and their acceptability will be submitted Attachment 12 contains the WCAP 13869 Revision 1 to Response is included in letter Due: 12/22/10 Enclosure 1 Item to the NRC by November 15, 2010 Revision 2 Change Analysis. dated 10/29/10 No. 36 EICB(Garg)

The staff is confused with the response since both units have reference leg not insulated Rev 2 should apply to Unit 1 also and there should be no difference between Unit 1 and 2 338 7.5.2.3 7.5 In page 3-15 and appendix B of Qualification Test Report Responder: Civil EQB 1. N Open Open-TVA/Bechtel 04508905-QR, licensee described the selection of seismic required response spectra (RRS) and indicated Figure 3-2 (page Get date from Bob Brown Due: 12/22/10 3-17), Figure 3-3 (page 3-18) are the RRSs used. The RRS curves used for actual testing are lower than the RRS curves that EICB (Singh) are shown on Figures 3-2 and 3-3. The RRS curves used for testing are shown in Figure 4-5, 4-6, 4-7, 4-8, 4-11, 4-12, 4-13, and 4-14 (pages 4-25, 4-26, 4-28, 4-29, 4-37, 4-38, 4-40, 4-41).

Please clarify and justify why the RRS curves used in actual tests are lower than the RRS curves determined in Figures 3-2 and 3-3.

In addition please justify that the RRS used for testing envelopes the RRS required for WBN-2 application specific seismic conditions.

339 7.5.2.3 7.5 In the Qualification Test Report 04508905-QR, the licensee Responder: Bob Brown 2. N Open Open-TVA/Bechtel provided only eight Safe Shutdown Earthquake (SSE) Test EICB Response Spectra (TRS) as mentioned in the previous open item Due: 12/22/10 (Singh) (OI-338). Please provide all SSE and Operating Basis Earthquake (OBE) TRS plots for NRC review.

069 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 1. N Open Open-TVA/WEC N/A - No question N/A EICB date for the "Watts Bar 2 PAMS Specific FAT Report" was October was asked. Item (Carte) 2010. Awaiting for document to be Due 2/18/11 was opened to track docketed by TVA. comm8ittment made by applicant.

074 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 2. N Open Open-TVA/WEC N/A - No question N/A EICB date for the Post FAT IV&V Phase Summary Report was was asked. Item (Carte) November 30, 2010. TVA to provide due date. Due 2/21/11 was opened to track commitment made by applicant.

081 7.5.2 7.5.1 5/6/2010 Responder: Merten/WEC 3. N Open Open-TVA/WEC EICB RAI TVA Letter dated EICB (Carte)

ML102910002 6/18/10 The PAMS Licensing Technical Report (WNA-LI-00058-WBT Rev. The codes and standards documents listed in Section 7 of ML101600092 Item No.1: There Due 12/22/10 Item No. 9 0, Dated April 2010), in Section 7, lists codes and standards the Common Q PAMS Licensing Technical Report are the are three sets of regulatory applicable to the Common Q PAMS. This list contains references documents that the Common Q platform was licensed to criteria that relate to a Common TVA to provide to old revisions of several regulatory documents, for example: when the NRC approved the original topical report and Q application (e.g. WBN2 requested information.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N (1) RG 1.29 - September 1978 vs. March 2007 issued the approved SER. The WBN Unit 2 Common Q PAMS):

(2) RG 1.53 - June 1973 vs. November 2003 PAMS is designed in accordance with the approved (a) Common Q platform (a) IEEE 379-1994 vs. -2000 Common Q topical report and approved SER and the codes components - Common Q TR (3) RG 1.75 - September 1975 vs. February 2005 and standards on which the SER was based. Since the (b) Application Development (a) IEEE 384-1992 vs. -1992 current versions referenced are not applicable to WBN Unit Processes - Common Q SPM (4) RG 1.100 - June 1988 vs. September 2009 2, there is no basis for a comparison review. (c) Application Specific - current (a) IEEE 344-1987 vs. -2004 regulatory criteria (5) RG 1.152 - January 1996 vs. January 2006 Bechtel to develop a matrix and work with Westinghouse to The Common Q Topical Report (a) IEEE 7-4.33.2-1993 vs. -2003 provide justification. and associated appendices (6) RG 1.168 - September 1997 vs. February 2004 primarily addressed (a) and (b).

(a) IEEE 1012-1986 vs. -1998 The Common Q SER states:

(b) IEEE 1028-1988 vs. -1997 (7) IEEE 279-1991 vs. 603-1991 Appendix 1, Post Accident (8) IEEE 323-1983 vs. -1974 (RG 1.89 Rev. 1 June 1984 Monitoring Systems, provides endorses 323-1974) the functional requirements and However, LIC-110, "Watts Bar Unit 2 License Application Review," conceptual design approach for states: "Design features and administrative programs that are upgrading an existing PAMS unique to Unit 2 should then be reviewed in accordance with the based on Common Q current staff positions." Please identify all differences between the components (page 58, Section versions referenced and the current staff positions. Please provide 4.4.1.1, Description)On the a justification for the acceptability PAMS with respect to these basis of the above review, the differences. 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 Systems, contain application specific requirements that must be addressed by a PAMS system.

Awaiting TVA Response.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 086 7.5.2 7.5.1 5/6/2010 Responder: WEC Date: 5/24/10 4. N Open Open-TVA/WEC EICB RAI TVA Letter dated EICB (Carte)

ML102910002 6/18/10 The PAMS Licensing Technical Report (WNA-LI-00058-WBT Rev. The regulatory documents listed in the Common Q PAMS TVA to address with item OI Due 12/22/10 Item No. 14 0, Dated April 2010), in Section 6, lists references applicable to the Licensing Technical Report are the documents that the 81.

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

versions referenced and the current staff positions. Please provide a justification for the acceptability PAMS with respect to these Rev 0 of the Licensing Technical Report references Rev. 1 of differences. ISG4