ML111520233

Closeout of Generic Letter 2008-01, Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems

ML111520233
Person / Time
Site:	Watts Bar
Issue date:	06/03/2011
From:	John Lamb Watts Bar Special Projects Branch
To:	Krich R Tennessee Valley Authority
Lamb J, NRR/DORL, 415-1727
References
GL-08-001, TAC MD7895
Download: ML111520233 (3)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 June 3,2011 Mr. R. M. Krich Vice President, Nuclear Licensing Tennessee Valley Authority 3R Lookout Place 1101 Market Street Chattanooga, TN 37402-2801

SUBJECT:

WATTS BAR NUCLEAR PLANT, UNIT 1 - CLOSEOUT OF GENERIC LETTER 2008-01, "MANAGING GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS" (TAC NO. MD7895)

Dear Mr. Krich:

On January 11, 2008, the U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 2008-01, "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems" (NRC Agencywide Documents Access and Management System (ADAMS) Accession No. ML072910759). The stated purpose of GL 2008-01 was (a) to request addressees to submit information to demonstrate that the subject systems are in compliance with the current licensing and design bases and applicable regulatory requirements, and that suitable design, operational, and testing control measures are in place for maintaining this compliance; and, (b) to collect the requested information to determine if additional regulatory action is required.

GL 2008-01 requested that licensees provide the following information within 9 months of the date of the G L:

(a) A description of the results of evaluations that were performed pursuant to requested actions specified in the GL. This description should provide sufficient information to demonstrate that you are or will be in compliance with the quality assurance criteria in Sections III, V, XI, XVI, and XVII of Appendix B to Title 10, Code of Federal Regulations Part 50 and the licensing basis and operating license as those requirements apply to the subject systems; (b) A description of all corrective actions, including plant, programmatic, procedure, and licensing basis modifications that you determined were necessary to assure compliance with these regulations; and, (c) A statement regarding which corrective actions were completed, the schedule for completing the remaining corrective actions, and the basis for that schedule.

R.M. Krich ~ 2 ~

By letters dated April 10,2008 (ADAMS ML081050481), April 30, 2008 (ML081160547),

May 9,2008 (ML081360101), June 6, 2008 (ML081630086), July 11, 2008 (ML081970084),

July 29,2008 (ML082000014), October 11,2008 (ML082890540), January 19, 2010 (ML100250237), January 12, 2011 (ML110140585), and January 14, 2011 (ML110210110),

Tennessee Valley Authority submitted information in response to GL 2008~01 for Watts Bar Nuclear Plant (WBN), Unit 1. The NRC staff has reviewed the submitted information and has concluded that for WBN Unit 1, your response to the GL is acceptable. Consequently, your GL response is considered closed and no further information or action is requested of you.

Notwithstanding, the NRC's Region II staff may decide to perform (and would contact you to schedule) an inspection using Temporary Instruction (TI) 2515/177, "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems (NRC Generic Letter 2008~01)" (ML082950666). The TI 2515/177 is confirmatory in nature in that it directs NRC inspectors to selectively verify that the licensee has implemented or is in the process of acceptably implementing the commitments, modifications, and programmatically controlled actions described in the licensee's response to GL 2008~01 and the plant-specific information supports a conclusion that subject systems operability is reasonably ensured.

If you have any questions regarding this matter, I may be reached at 301-415-3100.

n G. Lamb, Senior Project Manager tts Bar Special Projects Branch ivision of Operating Reactor Licensing ffice of Nuclear Reactor Regulation Docket No. 50-390 cc: Distribution via Listserv

R.M. Krich -2 By letters dated April 10, 2008 (ADAMS ML081050481), April 30. 2008 (ML081160547).

May 9,2008 (ML081360101), June 6,2008 (ML081630086), July 11.2008 (ML081970084),

July 29,2008 (ML082000014), October 11,2008 (ML082890540). January 19, 2010 (ML100250237), January 12, 2011 (ML110140585), and January 14, 2011 (ML110210110),

Tennessee Valley Authority submitted information in response to GL 2008-01 for Watts Bar Nuclear Plant (WBN), Unit 1. The NRC staff has reviewed the submitted information and has concluded that for WBN Unit 1, your response to the GL is acceptable. Consequently, your GL response is considered closed and no further information or action is requested of you.

Notwithstanding, the NRC's Region II staff may decide to perform (and would contact you to schedule) an inspection using Temporary Instruction (TI) 2515/177, "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems (NRC Generic Letter 2008-01)" (ML082950666). The TI 2515/177 is confirmatory in nature in that it directs NRC inspectors to selectively verify that the licensee has implemented or is in the process of acceptably implementing the commitments, modifications. and programmatically controlled actions described in the licensee's response to GL 2008-01 and the plant-specific information supports a conclusion that subject systems operability is reasonably ensured.

If you have any questions regarding this issue, please feel free to contact me at (301) 415-3100.

Sincerely, IRA!

John G. Lamb, Senior Project Manager Watts Bar Special Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-390 cc: Distribution via Listserv OISTRIBUTION:

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