ML080600372: Difference between revisions

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=Text=
=Text=
{{#Wiki_filter:S64 080208 800 Tennessee ValleyAuthority, Post Office Box 2000, Soddy-Daisy, Tennessee 37384-2000 February 8, 2008 10 CFR 50.90 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Gentlemen:
{{#Wiki_filter:S64 080208 800 Tennessee ValleyAuthority, Post Office Box 2000, Soddy-Daisy, Tennessee 37384-2000 February 8, 2008 10 CFR 50.90 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C.                 20555 Gentlemen:
In the Matter of Docket No. 50-328 Tennessee Valley Authority (TVA)SEQUOYAH NUCLEAR PLANT (SQN) SUPPLEMENTAL RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION (RAI) REGARDING UNIT 2 TECHNICAL SPECIFICATION CHANGE 06-06, PROBABILITY OF PRIOR CYCLE DETECTION (POPCD) (TAC NO. MD4110)
In the Matter of                                                                 Docket No. 50-328 Tennessee Valley Authority (TVA)
SEQUOYAH NUCLEAR PLANT (SQN) SUPPLEMENTAL RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION (RAI) REGARDING UNIT 2 TECHNICAL SPECIFICATION CHANGE 06-06, PROBABILITY OF PRIOR CYCLE DETECTION (POPCD) (TAC NO. MD4110)


==Reference:==
==Reference:==
TVA letter to NRC dated January 8, 2008, "Sequoyah Nuclear Plant (SQN) Response to Request for Additional Information (RAI) Regarding Unit 2 Technical Specification Change 06-06, Probability of Prior Cycle Detection (POPCD) (TAC No. MD4110)"
Following transmittal of the reference letter, it was noted that the word "negative" had been inadvertently omitted from the response to NRC Question 22.                                The last paragraph of the response to Question.22 should read, in part, "...except if significant negative trends in POPCD occur."
Also, to further clarify TVA's response to NRC Question 23, TVA will model the uncertainties associated with the POPCD distribution through a Monte Carlo approach similar to the method approved for Diablo Canyon.                                    This will be tracked as part of the commitment identified in Enclosure 3 of the reference letter.
No additional regulatory commitments are identified by this letter.
Prned m recycled ooaper


TVA letter to NRC dated January 8, 2008, "Sequoyah Nuclear Plant (SQN) Response to Request for Additional Information (RAI) Regarding Unit 2 Technical Specification Change 06-06, Probability of Prior Cycle Detection (POPCD) (TAC No. MD4110)" Following transmittal of the reference letter, it was noted that the word "negative" had been inadvertently omitted from the response to NRC Question 22. The last paragraph of the response to Question.22 should read, in part, "...except if significant negative trends in POPCD occur." Also, to further clarify TVA's response to NRC Question 23, TVA will model the uncertainties associated with the POPCD distribution through a Monte Carlo approach similar to the method approved for Diablo Canyon. This will be tracked as part of the commitment identified in Enclosure 3 of the reference letter.No additional regulatory commitments are identified by this letter.Prned m recycled ooaper U.S. Nuclear Regulatory Commission Page 2 February 8, 2008 Please direct questions concerning this issue to Russell R.Thompson at (423) 843-6672.I declare under penalty of perjury that the foregoing is true and correct. Executed on this 8th day of February, 2008.Sincerely James D. Smith Manager, Site Licensing and Industry Affairs  
U.S. Nuclear Regulatory Commission Page 2 February 8, 2008 Please direct questions concerning this issue to Russell R.
Thompson at (423) 843-6672.
I declare under penalty of perjury that the foregoing is true and correct. Executed on this 8th day of February, 2008.
Sincerely James D. Smith Manager, Site Licensing and Industry Affairs


==Enclosures:==
==Enclosures:==


cc (Enclosures)
cc (Enclosures)
Mr. Thomas H. Boyce, Project Manager U.S. Nuclear Regulatory Commission Mail Stop 08G-9a One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2739 Mr. Lawrence E. Nanney, Director Division of Radiological.
Mr. Thomas H. Boyce, Project Manager U.S. Nuclear Regulatory Commission Mail Stop 08G-9a One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2739 Mr. Lawrence E. Nanney, Director Division of Radiological. Health Third Floor L&C Annex 401 Church Street Nashville, Tennessee 37243-1532
Health Third Floor L&C Annex 401 Church Street Nashville, Tennessee 37243-1532 U.S. Nuclear Regulatory Commission Page 3 February 8, 2008 JDS:RRT:PMB:KTS cc: AREVA NP, Inc.P. 0. Box 10935 Lynchburg, Virginia 24506-093.5 ATTN: Mr. David M. Brown G. Arent, EQB 1B-WBN L. E. Nicholson,.BR 4X-C W. R. Campbell, Jr., LP 3R-C C. R. Church, POB 2B-SQN J. E. Cipriani, OPS 4E-SQN T. P. Cleary, OPS 4A-SQN K. R. Jones, OPS 4A-SQN NSRB Support, BR 4X-C M. A. Purcell, BR 4X-C H. R. Rogers, LP 3R-C S. A. Vance, ET 10A-K E. J. Vigluicci, ET 1OA-K WBN Site Licensing Files, ADM 1L-WBN EDMS, WT CA-K (Re: S64 080108 800)I:License/TS Submittals/TSC 06-06, RAI Supplementa Response for POPCD}}
 
U.S. Nuclear Regulatory Commission Page 3 February 8, 2008 JDS:RRT:PMB:KTS cc:     AREVA NP, Inc.
P. 0. Box 10935 Lynchburg, Virginia 24506-093.5 ATTN:   Mr. David M. Brown G. Arent, EQB 1B-WBN L. E. Nicholson,.BR 4X-C W. R. Campbell, Jr., LP 3R-C C. R. Church, POB 2B-SQN J. E. Cipriani, OPS 4E-SQN T. P. Cleary, OPS 4A-SQN K. R. Jones, OPS 4A-SQN NSRB Support, BR 4X-C M. A. Purcell, BR 4X-C H. R. Rogers, LP 3R-C S. A. Vance, ET 10A-K E. J. Vigluicci, ET 1OA-K WBN Site Licensing Files, ADM 1L-WBN EDMS, WT CA-K (Re:       S64 080108 800)
I:License/TS Submittals/TSC 06-06, RAI Supplementa Response for POPCD}}

Revision as of 20:04, 14 November 2019

Supplemental Response to Request for Additional Information (RAI) Regarding Unit 2 Technical Specification Change 06-06, Probability of Prior Cycle Detection (Popcd)
ML080600372
Person / Time
Site: Sequoyah Tennessee Valley Authority icon.png
Issue date: 02/08/2008
From: James Smith
Tennessee Valley Authority
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
TAC MD4110
Download: ML080600372 (3)
v • d • e


Text

S64 080208 800 Tennessee ValleyAuthority, Post Office Box 2000, Soddy-Daisy, Tennessee 37384-2000 February 8, 2008 10 CFR 50.90 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Gentlemen:

In the Matter of Docket No. 50-328 Tennessee Valley Authority (TVA)

SEQUOYAH NUCLEAR PLANT (SQN) SUPPLEMENTAL RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION (RAI) REGARDING UNIT 2 TECHNICAL SPECIFICATION CHANGE 06-06, PROBABILITY OF PRIOR CYCLE DETECTION (POPCD) (TAC NO. MD4110)

Reference:

TVA letter to NRC dated January 8, 2008, "Sequoyah Nuclear Plant (SQN) Response to Request for Additional Information (RAI) Regarding Unit 2 Technical Specification Change 06-06, Probability of Prior Cycle Detection (POPCD) (TAC No. MD4110)"

Following transmittal of the reference letter, it was noted that the word "negative" had been inadvertently omitted from the response to NRC Question 22. The last paragraph of the response to Question.22 should read, in part, "...except if significant negative trends in POPCD occur."

Also, to further clarify TVA's response to NRC Question 23, TVA will model the uncertainties associated with the POPCD distribution through a Monte Carlo approach similar to the method approved for Diablo Canyon. This will be tracked as part of the commitment identified in Enclosure 3 of the reference letter.

No additional regulatory commitments are identified by this letter.

Prned m recycled ooaper

U.S. Nuclear Regulatory Commission Page 2 February 8, 2008 Please direct questions concerning this issue to Russell R.

Thompson at (423) 843-6672.

I declare under penalty of perjury that the foregoing is true and correct. Executed on this 8th day of February, 2008.

Sincerely James D. Smith Manager, Site Licensing and Industry Affairs

Enclosures:

cc (Enclosures)

Mr. Thomas H. Boyce, Project Manager U.S. Nuclear Regulatory Commission Mail Stop 08G-9a One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2739 Mr. Lawrence E. Nanney, Director Division of Radiological. Health Third Floor L&C Annex 401 Church Street Nashville, Tennessee 37243-1532

U.S. Nuclear Regulatory Commission Page 3 February 8, 2008 JDS:RRT:PMB:KTS cc: AREVA NP, Inc.

P. 0. Box 10935 Lynchburg, Virginia 24506-093.5 ATTN: Mr. David M. Brown G. Arent, EQB 1B-WBN L. E. Nicholson,.BR 4X-C W. R. Campbell, Jr., LP 3R-C C. R. Church, POB 2B-SQN J. E. Cipriani, OPS 4E-SQN T. P. Cleary, OPS 4A-SQN K. R. Jones, OPS 4A-SQN NSRB Support, BR 4X-C M. A. Purcell, BR 4X-C H. R. Rogers, LP 3R-C S. A. Vance, ET 10A-K E. J. Vigluicci, ET 1OA-K WBN Site Licensing Files, ADM 1L-WBN EDMS, WT CA-K (Re: S64 080108 800)

I:License/TS Submittals/TSC 06-06, RAI Supplementa Response for POPCD

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