ML061510252

RAI, Request for Additional Information Re Proposed Technical Specification Changes - Leak Detection Instruments

ML061510252
Person / Time
Site:	Waterford
Issue date:	06/02/2006
From:	Fields M NRC/NRR/ADRO/DORL/LPLIV
To:	Venable J Entergy Operations
Fields M, NRR/DORL/LP4, 415-3062
References
TAC MD0173
Download: ML061510252 (4)

Text

June 2, 2006 Mr. Joseph E. Venable Vice President Operations Entergy Operations, Inc.

17265 River Road Killona, LA 70066-0751

SUBJECT:

WATERFORD STEAM ELECTRIC STATION, UNIT 3 (WATERFORD 3) -

REQUEST FOR ADDITIONAL INFORMATION RELATED TO PROPOSED TECHNICAL SPECIFICATION CHANGES REGARDING LEAK DETECTION INSTRUMENTS (TAC NO. MD0173)

Dear Mr. Venable:

By letter dated February 15, 2006, Entergy Operations, Inc., proposed revisions to Waterford 3 Technical Specification 3.4.5.1, Reactor Coolant System Leakage - Leakage Detection Instrumentation, to credit the measurement tank weir flow instrumentation for the containment fan cooler condensate flow monitoring system in place of the one containment fan cooler condensate flow switch.

After reviewing the information contained in your letter dated February 15, 2006, the Nuclear Regulatory Commission (NRC) staff has determined that additional information is required to complete the review. As discussed with members of your staff, the NRC staff is requesting a response within 60 days of the date of this letter.

If you have any questions, please call me at (301) 415-3062.

Sincerely,

/RA/

Mel B. Fields, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-382

Enclosure:

Request for Additional Information cc w/encl: See next page

June 2, 2006 Mr. Joseph E. Venable Vice President Operations Entergy Operations, Inc.

17265 River Road Killona, LA 70066-0751

SUBJECT:

WATERFORD STEAM ELECTRIC STATION, UNIT 3 (WATERFORD 3) -

REQUEST FOR ADDITIONAL INFORMATION RELATED TO PROPOSED TECHNICAL SPECIFICATION CHANGES REGARDING LEAK DETECTION INSTRUMENTS (TAC NO. MD0173)

Dear Mr. Venable:

By letter dated February 15, 2006, Entergy Operations, Inc., proposed revisions to Waterford 3 Technical Specification 3.4.5.1, Reactor Coolant System Leakage - Leakage Detection Instrumentation, to credit the measurement tank weir flow instrumentation for the containment fan cooler condensate flow monitoring system in place of the one containment fan cooler condensate flow switch.

After reviewing the information contained in the letter dated February 15, 2006, the Nuclear Regulatory Commission (NRC) staff has determined that additional information is required to complete the review. As discussed with members of your staff, the NRC staff is requesting a response within 60 days of the date of this letter.

If you have any questions, please call me at (301) 415-3062.

Sincerely,

/RA/

Mel B. Fields, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-382

Enclosure:

Request for Additional Information cc w/encl: See next page DISTRIBUTION PUBLIC RidsNrrLALFeizollahi RidsNrrAdroDorlLpl4 (DTerao)

LPLIV Reading RidsNrrPMMFields RidsAcrsAcnwMailCenter RidsNrrDorlDpr RidsOgcRp RidsRgn4MailCenter (DGraves)

RHernandez, ADES RidsNrrPMBSingal Accession No.: ML061510252 OFFICE NRR/LPL4/PM NRR/LPL4/LA NRR/SBPB/(A)BC NRR/LPL4/BC NAME MFields LFeizollahi JTatum DTerao DATE 6/1/06 6/1/06 05/18/2006 6/2/06 OFFICIAL RECORD COPY

REQUEST FOR ADDITIONAL INFORMATION TECHNICAL SPECIFICATION CHANGE REGARDING REACTOR COOLANT SYSTEM LEAKAGE DETECTION INSTRUMENTATION ENTERGY OPERATIONS, INC.

WATERFORD STEAM ELECTRIC STATION, UNIT 3 DOCKET NO. 50-382 By letter dated February 15, 2006 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML060480417), Entergy Operations, Inc. submitted an application to change Waterford Steam Electric Station (Waterford), Unit 3, Technical Specification 3.4.5.1, Reactor Coolant System Leakage - Leakage Detection Instrumentation, to credit the measurement tank weir flow instrumentation for the containment fan cooler condensate flow monitoring system in place of the one containment fan cooler condensate flow switch.

In order to complete its review of the license amendment for Waterford, Unit 3, the staff needs the additional information requested below.

1. Explain why use of the Containment Fan Cooler (CFC) flow switches with monitoring equipment that is capable of adding the condensate flow from all CFCs, thereby detecting reactor coolant system leakage of 1 gpm within an hour, is not a viable option for resolving the problem that has been identified.

2. The measurement tank weir flow monitor was previously approved (Amendment No. 197) as one of two acceptable containment sump monitoring methods. The two containment sump monitoring methods are similar in nature and acceptance of the tank weir flow monitor added operational flexibility but it did not add diversity.

Please justify how the proposed change satisfies the diversity criteria that are specified in Regulatory Guide 1.45 for leak detection methods.

Waterford Steam Electric Station, Unit 3 cc:

Vice President Operations Support Regional Administrator, Region IV Entergy Operations, Inc. U.S. Nuclear Regulatory Commission P. O. Box 31995 611 Ryan Plaza Drive, Suite 400 Jackson, MS 39286-1995 Arlington, TX 76011 Director Parish President Council Nuclear Safety Assurance St. Charles Parish Entergy Operations, Inc. P. O. Box 302 17265 River Road Hahnville, LA 70057 Killona, LA 70066-0751 Executive Vice President Wise, Carter, Child & Caraway & Chief Operating Officer P. O. Box 651 Entergy Operations, Inc.

Jackson, MS 39205 P. O. Box 31995 Jackson, MS 39286-1995 General Manager Plant Operations Waterford 3 SES Chairman Entergy Operations, Inc. Louisiana Public Services Commission 17265 River Road P. O. Box 91154 Killona, LA 70066-0751 Baton Rouge, LA 70825-1697 Licensing Manager Richard Penrod, Senior Environmental Scientist Entergy Operations, Inc. State Liaison Officer 17265 River Road Office of Environmental Services Killona, LA 70066-0751 Northwestern State University Russsell Hall, Room 201 Winston & Strawn LLP Natchitoches, LA 71497 1700 K Street, N.W.

Washington, DC 20006 Resident Inspector/Waterford NPS P. O. Box 822 Killona, LA 70066-0751 May 2006