ML062840685
| ML062840685 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 10/20/2006 |
| From: | Pickett D NRC/NRR/ADRO/DORL/LPLII-2 |
| To: | Singer K Tennessee Valley Authority |
| Pickett, D V, DORL/LPLII-2, 415-1364 | |
| References | |
| TAC MD2527, TAC MD2528, TAC MD2529, TAC MD2530 | |
| Download: ML062840685 (4) | |
Text
October 20, 2006 Mr. Karl W. Singer Chief Nuclear Officer and Executive Vice President Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801
SUBJECT:
WATTS BAR NUCLEAR PLANT, UNIT 1 - REQUEST FOR ADDITIONAL INFORMATION REGARDING THE RELIEF REQUESTS FOR THE SECOND 10-YEAR INSERVICE TESTING INTERVAL (TAC NOS. MD2527, MD2528, MD2529, MD2530)
Dear Mr. Singer:
By letter dated June 30, 2006, the Tennessee Valley Authority (TVA, the licensee) submitted Relief Requests Nos. PV-01, PV-02, PV-03, and PV-04 with an updated Inservice Testing Program for the Watts Bar Nuclear Plant, Unit 1, second 10-year inspection interval for pumps and valves. The relief requests are under review by the NRC staff in accordance with Title 10 of the Code of Federal Regulations, Paragraph 50.55a.
In order for the staff to complete its review of the information provided by the licensee, we request that TVA provide responses to the enclosed request for additional information (RAI).
Based on discussions with your staff, we understand that you plan to respond to the enclosed RAI within 60 days of receipt of this letter. If you have any questions about this material, please contact me at (301) 415-1364.
Sincerely,
/RA/
Douglas V. Pickett, Senior Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-390
Enclosure:
Request for Additional Information cc: See next page
ML062840685 NRR-088 OFFICE LPL2-2 LPL2-2/PM LPL2-2/LA CPTB/(A)BC LPL2-2/BC NAME JPaige DPickett RSola TLiu LRaghavan DATE 10/16/06 10/18/06 10/12/06 10/18/06 10/20/06
Enclosure REQUEST FOR ADDITIONAL INFORMATION WATTS BAR NUCLEAR PLANT, UNIT 1, RELIEF REQUESTS FOR THE SECOND 10-YEAR INSERVICE TESTING INTERVAL DOCKET NO. 50-390 1.
Pump Relief Request PV-02:
a.
RAI PV-02-01 ISTB-3550 requires that when measuring flow rate, a rate or quantity meter be installed in the pump test circuit. Please describe how the requirements of ISTB-3550 are being met.
b.
RAI PV-02-02 Please provide additional information on the test methodology utilized to ensure that flow rate is established at a consistent reference point during the Group A and comprehensive pump tests.
c.
RAI PV-02-03 Please address the effect of potential flow degradation due to spray nozzle fouling on the quarterly test acceptance criteria and the comprehensive pump test acceptance criteria.
d.
RAI PV-02-04 The relief request states that the physical configuration of this piping is such that no portion of the piping meets the requirements for adequate installation of a permanent flow measuring device. Please provide additional information with regard to the feasibility of using temporary flow instrumentation (i.e.,
modifications required, detailed description of piping runs with respect to installation of temporary flow instrumentation).
Mr. K. W. Singer Tennessee Valley Authority WATTS BAR NUCLEAR PLANT cc:
Mr. Ashok S. Bhatnagar, Senior Vice President Nuclear Operations Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Larry S. Bryant, Vice President Nuclear Engineering & Technical Services Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Robert J. Beecken, Vice President Nuclear Support Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Michael D. Skaggs Site Vice President Watts Bar Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Spring City, TN 37381 General Counsel Tennessee Valley Authority ET 11A 400 West Summit Hill Drive Knoxville, TN 37902 Mr. John C. Fornicola, Manager Nuclear Assurance and Licensing Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Ms. Ann P. Harris 341 Swing Loop Road Rockwood, Tennessee 37854 Mr. Glenn W. Morris, Manager Corporate Nuclear Licensing and Industry Affairs Tennessee Valley Authority 4X Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801 Mr. Paul L. Pace, Manager Licensing and Industry Affairs Watts Bar Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Spring City, TN 37381 Mr. Jay Laughlin, Plant Manager Watts Bar Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Spring City, TN 37381 Senior Resident Inspector Watts Bar Nuclear Plant U.S. Nuclear Regulatory Commission 1260 Nuclear Plant Road Spring City, TN 37381 County Executive 375 Church Street Suite 215 Dayton, TN 37321 County Mayor P. O. Box 156 Decatur, TN 37322 Mr. Lawrence E. Nanney, Director Division of Radiological Health Dept. of Environment & Conservation Third Floor, L and C Annex 401 Church Street Nashville, TN 37243-1532