ML031820439
| ML031820439 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 07/01/2003 |
| From: | Jabbour K NRC/NRR/DLPM/LPD2 |
| To: | |
| Jabbour K, NRR/DLPM, 415-1496 | |
| Shared Package | |
| ML031820450 | List: |
| References | |
| TAC MB5733, TAC MB5734, TAC MB5735 | |
| Download: ML031820439 (5) | |
Text
July 1, 2003 LICENSEE:
Tennessee Valley Authority FACILITY:
Browns Ferry Nuclear Plant, Units 1, 2, and 3
SUBJECT:
SUMMARY
OF JUNE 10, 2003, MEETING REGARDING THE ALTERNATIVE SOURCE TERM (AST) FOR BROWNS FERRY PLANT, UNITS 1, 2, AND 3 (TAC NOS. MB5733, MB5734, AND MB5735)
Background
On June 10, 2003, the U.S. Nuclear Regulatory Commission (NRC) staff met with Tennessee Valley Authoritys (TVAs or the licensees) representatives at the NRC Headquarters in Rockville, Maryland. The objective of the meeting was to discuss TVAs potential request for an exemption from Title 10 of the Code of Federal Regulations, Part 50, Appendix A, General Design Criterion (GDC) 41, for the standby liquid control (SLC) system in support of the AST application dated July 31, 2002, as supplemented by letters dated December 9, 2002, February 12, 2003, and March 26, 2003. The meeting was classified as a Category 1 meeting. is a list of attendees, and Attachments 2 and 3 are copies of TVAs handout distributed during the meeting. Attachment 2 contains TVAs agenda for the meeting.
Discussion In its license amendment application for a full-scope AST, TVA credited the SLC system for pH control in the suppression pool, which is consistent with previous NRC staff approvals of AST amendments. In addition, TVA requested elimination of the charcoal adsorber filter testing requirements for the standby gas treatment and control room emergency ventilation filter systems. During the meeting, the licensee provided information to support its position for crediting the SLC system for accident mitigation using the criteria in Regulatory Guide 1.183, Section 5.1.2, and GDC 41. They stated that the SLC system is classified as a special safety system in that, among other things, it is subject to the augmented quality assurance program, the technical specifications require periodic verification of component performance, and the SLC system is powered by different safety-related sources and a loss of offsite power or a single power failure will not prevent the operation of the system. The proposed exemption from GDC 41 would release TVA from the requirement to apply the single-failure criterion to the injection line containment isolation check valves and control circuitry. The licensee stated that the SLC system design, the existing administrative controls, and the demonstrated system reliability are adequate to meet the underlying purpose of GDC 41.
The licensee addressed the NRC staffs comments regarding the overall reliability of the SLC system, the failure history of the piston check valves in the SLC system, the conservative radiological dose analyses in support of the exemption, the reliability of the hand switch in the control room, and the valve location with respect to the reactor vessel and other components.
The licensee provided a handout (Attachment 3) that shows a cross section of the piston check valve. In addition, the licensee agreed to include in its exemption request the SLC fault tree analysis from the probabilistic risk assessment analysis, provide an isometric that shows the valve locations and the injection lines with respect to the reactor vessel and other components, and provide detailed responses to the above comments.
TVA plans to submit the exemption request in the near future, and will withdraw the request to eliminate the charcoal adsorber filter testing requirements for the standby gas treatment and control room emergency ventilation filter systems.
Conclusion The NRC staff did not make any regulatory decisions during the meeting, and will review TVAs submittals in a timely manner.
Comments from members of the public Following the conclusion of the business meeting and in response to the NRC staffs request, the members of the public who were in attendance indicated that they had no comments.
Please direct any inquiries regarding this meeting to me at 301-415-1496 or KNJ@NRC.GOV.
Sincerely,
/RA/
Kahtan N. Jabbour, Senior Project Manager, Section 2 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-259, 50-260, and 50-296 Attachments: As stated cc w/atts: See next page analysis from the probabilistic risk assessment analysis, provide an isometric that shows the valve locations and the injection lines with respect to the reactor vessel and other components, and provide detailed responses to the above comments.
TVA plans to submit the exemption request in the near future, and will withdraw the request to eliminate the charcoal adsorber filter testing requirements for the standby gas treatment and control room emergency ventilation filter systems.
Conclusion The NRC staff did not make any regulatory decisions during the meeting, and will review TVAs submittals in a timely manner.
Comments from members of the public Following the conclusion of the business meeting and in response to the NRC staffs request, the members of the public who were in attendance indicated that they had no comments.
Please direct any inquiries regarding this meeting to me at 301-415-1496 or KNJ@NRC.GOV.
Sincerely,
/RA/
Kahtan N. Jabbour, Senior Project Manager, Section 2 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-259, 50-260, and 50-296 Attachments: As stated cc w/atts: See next page Distribution:
PUBLIC PDII-2 R/F L. Marsh E. Hackett K. Jabbour B. Clayton (hard copy)
S. LaVie OGC ACRS M. Kotzalas F. Akstulewicz S. Cahill, RII M. Lesser RII W. Bearden U. Shoop R. Dennig S. Shaeffer B. Smith, EDO S. Weerakkody D. Trimble J. Bongarra H. Walker E. Forrest Meeting Summary: ML031820439 Package:
ML031820754 Meeting Notices: ML031500174 & ML031480841 OFFICE PDII-2/PM PDII-2/LA PDII-2/SC NAME KJabbour EDunnington for:
BClayton AHowe DATE 6/30/2003 6/ 30/2003 7/01/2003 OFFICIAL RECORD COPY
ATTENDANCE LIST NUCLEAR REGULATORY COMMISSION STAFF MEETING WITH TENNESSEE VALLEY AUTHORITY AT NRC HEADQUARTERS ALTERNATIVE SOURCE TERM FOR BROWNS FERRY PLANT, UNITS 1, 2, AND 3 JUNE 10, 2003 NRC TVA A. Howe T. Abney R. Dennig D. Langley A. Hodgdon R. Wright E. Forrest T. Newton H. Walker J. Metcalf (Polstar)
S. La Vie J. Lee J. Bongarra K. Jabbour Members of the Public G. Broadbent (Entergy/Grand Gulf)
M. Eades (Energy Northwest)
Tennessee Valley Authority BROWNS FERRY NUCLEAR PLANT cc:
Mr. J. A. Scalice Chief Nuclear Officer and Executive Vice President Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801 Mr. Karl W. Singer, Senior Vice President Nuclear Operations Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. James E. Maddox, Acting Vice President Engineering & Technical Services Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Ashok S. Bhatnagar, Site Vice President Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 General Counsel Tennessee Valley Authority ET 11A 400 West Summit Hill Drive Knoxville, TN 37902 Mr. Robert J. Adney, General Manager Nuclear Assurance Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Robert G. Jones, Plant Manager Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Mark J. Burzynski, Manager Nuclear Licensing Tennessee Valley Authority 4X Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801 Mr. Timothy E. Abney, Manager Licensing and Industry Affairs Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Senior Resident Inspector U.S. Nuclear Regulatory Commission Browns Ferry Nuclear Plant P.O. Box 149 Athens, AL 35611 State Health Officer Alabama Dept. of Public Health RSA Tower - Administration Suite 1552 P.O. Box 303017 Montgomery, AL 36130-3017 Chairman Limestone County Commission 310 West Washington Street Athens, AL 35611