ML080020300
| ML080020300 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 01/28/2008 |
| From: | John Hughey NRC/NRR/ADRO/DORL/LPLI-2 |
| To: | Christian D Virginia Electric & Power Co (VEPCO) |
| Sanders, Carleen, NRR/DORL 415-1603 | |
| References | |
| TAC MD6115, TAC MD6116 | |
| Download: ML080020300 (5) | |
Text
January 28, 2008 Mr. David A. Christian President and Chief Nuclear Officer Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711
SUBJECT:
MILLSTONE POWER STATION, UNIT NOS. 2 AND 3 - REQUEST FOR ADDITIONAL INFORMATION REGARDING CONTROL ROOM HABITIBILITY (TAC NOS. MD6115 AND 6116)
Dear Mr. Christian:
By letter to the Nuclear Regulatory Commission (NRC) dated July 13, 2007, as supplemented by letter dated December 7, 2007, Dominion Nuclear Connecticut, Inc. (DNC) submitted the proposed license amendment request for Millstone Power Station, Unit Nos. 2 and 3 to modify the Technical Specification (TS) requirements related to control room envelope habitability consistent with NRC-approved Technical Specification Task Force Traveler (TSTF) -448, Control Room Habitability, revision 3. The NRC staff has reviewed the request submitted by DNC and has identified a need for additional information as set forth in the Enclosure.
The draft questions were sent to William Bartron, from your staff, to ensure that the questions were understandable, the regulatory basis for the questions was clear, and to determine if the information was previously docketed. On December 20, 2007, William Bartron indicated that DNC understands the issues and plans to submit a response by March 7, 2008. Please note that if you do not respond to this letter within this agreed response time or provide an acceptable alternate date in writing, we may reject your application for amendment under the provisions of Title 10 of the Code of Federal Regulations, Section 2.108. If you have any questions, please contact Carleen Sanders at (301) 415-1603.
Sincerely,
/ra/
John D. Hughey, Project Manager Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No.: 50-336 and 50-423
Enclosure:
RAI cc w/encl: See next page
January 28, 2008 Mr. David A. Christian President and Chief Nuclear Officer Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711
SUBJECT:
MILLSTONE POWER STATION, UNIT NOS. 2 AND 3 - REQUEST FOR ADDITIONAL INFORMATION REGARDING CONTROL ROOM HABITIBILITY (TAC NOS. MD6115 AND 6116)
Dear Mr. Christian:
By letter to the Nuclear Regulatory Commission (NRC) dated July 13, 2007, as supplemented by letter dated December 7, 2007, Dominion Nuclear Connecticut, Inc. (DNC) submitted the proposed license amendment request for Millstone Power Station, Unit Nos. 2 and 3 to modify the Technical Specification (TS) requirements related to control room envelope habitability consistent with NRC-approved Technical Specification Task Force Traveler (TSTF) -448, Control Room Habitability, revision 3. The NRC staff has reviewed the request submitted by DNC and has identified a need for additional information as set forth in the Enclosure.
The draft questions were sent to William Bartron, from your staff, to ensure that the questions were understandable, the regulatory basis for the questions was clear, and to determine if the information was previously docketed. On December 20, 2007, William Bartron indicated that DNC understands the issues and plans to submit a response by March 7, 2008. Please note that if you do not respond to this letter within this agreed response time or provide an acceptable alternate date in writing, we may reject your application for amendment under the provisions of Title 10 of the Code of Federal Regulations, Section 2.108. If you have any questions, please contact Carleen Sanders at (301) 415-1603.
Sincerely,
/ra/
John D. Hughey, Project Manager Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No.: 50-336 and 50-423
Enclosure:
RAI cc w/encl: See next page DISTRIBUTION:
PUBLIC LPL1-2 R/F RidsNrrDorlLpl1-2 RidsNrrPMJHughey RidsNrrLAABaxter RidsRgn1MailCenter RidsAcrsAcnwMailCenter RidsOgcRp ADAMS Accession No. ML080020300
- By Memorandum dated OFFICE LPL1-2/GE LPL1-2/PM LPL1-2/LA DSS/SCVB DIRS/ITSB LPL1-2/BC NAME CSanders JHughey ABaxter RDenning*
TKobetz*
HChernoff DATE 01/07/2008 01/16/2008 01/07/2008 11/28/2007 11/21/2007 01/28/2008 Official Record Copy
Enclosure Millstone Power Station, Units 2 and 3 Proposed Technical Specification Change: Control Room Habitability (MD6115 and MD6116)
Request for Additional Information In Dominion Nuclear Connecticut, Inc. (DNCs) submittal dated July 13, 2007, as supplemented by letter dated December 7, 2007, DNC stated that Millstone Power Station, Unit 2 (MPS2) had a non-pressurized control room, thus paragraph (d) of the control room habitability program was not applicable. Technical Specification Task Force (TSTF)-448, Control Room Habitability, was developed for plants with pressurized control room envelopes (CRE). DNC stated that MPS2 has a non-pressurized CRE. Note that in the Programs and Manuals section of the standard technical specifications (STS) as modified by TSTF-448 revision 3, paragraph (d) of Section [5.5.18], Control Room Envelope Habitability Program, specifies a differential pressure (dp) test to be conducted between performances of inleakage testing for the purpose of providing input to a periodic assessment of the CRE boundary. The Nuclear Regulatory Commission (NRC) staff recognizes that non-pressurized CREs may not be able to conduct a dp test, nevertheless, it is the NRC staffs position that all plants requesting the adoption of TSTF-448 should include in their request, a method to collect data that will serve as input to a periodic assessment of the CRE boundary. This position is supported by the technical analysis section of TSTF-448 revision 3 on page 8 where an explanation of the basis for paragraph (d) is provided.
- 1.
Provide a method to collect data that can be used as input to a periodic assessment of the MPS2 CRE boundary, and an explanation of how DNC intends to use the data. The method of collection should, to the extent practicable, provide information that can be used in a similar manner as the information requested by paragraph (d) of Section 5.5.18 of the Programs and Manuals section of the STS as modified by revision 3 of TSTF-448.
DNC stated that air inleakage testing is conducted at MPS2 per ASTM E741-83, rather than ASTM E741-00, as referenced in Model Safety Evaluation - Section 2.3.
- 2.
Please provide a detailed comparison between the two ASTM E-741 revisions (Revision 1983 and Revision 2000) and provide justification explaining why the revision DNC chose to use is acceptable.
DNC references NEI 99-03, Revision 1, Appendix EE, in Attachment 1, Page 7 of 11 under Exceptions.
- 3.
The NRC staff has not reviewed NEI 99-03, Revision 1. Therefore, exceptions used in Appendix EE of NEI 99-03, Revision 1, have not been reviewed by the NRC staff. Please identify alternate plant-specific ASTM E741 exceptions and provide a detailed explanation justifying the acceptability of these exemptions.
DNC stated in Attachment 1, Page 7 of 11 under Exceptions, that exceptions to the Regulatory Guide (RG) 1.196, and the RGs referenced therein, are consistent with the intent, but are not in verbatim compliance with the regulatory positions established in each RG.
- 4. Please provide a categorical listing of the plant specific exceptions to the Regulatory Guides referenced in RG 1.196 (i.e., RG 1.52, RG 1.78, and RG 1.183). Also, identify specific MPS2 updated final safety analysis report (UFSAR) and Millstone Power Station, Unit 3 UFSAR sections showing where these exceptions are addressed with their proper justification.
Millstone Power Station, Unit Nos. 2 and 3 cc:
Lillian M. Cuoco, Esquire Senior Counsel Dominion Resources Services, Inc.
Building 475, 5th Floor Rope Ferry Road Waterford, CT 06385 Edward L. Wilds, Jr., Ph.D.
Director, Division of Radiation Department of Environmental Protection 79 Elm Street Hartford, CT 06106-5127 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 First Selectmen Town of Waterford 15 Rope Ferry Road Waterford, CT 06385 Charles Brinkman, Director Washington Operations Nuclear Services Westinghouse Electric Company 12300 Twinbrook Pkwy, Suite 330 Rockville, MD 20852 Senior Resident Inspector Millstone Power Station c/o U.S. Nuclear Regulatory Commission P. O. Box 513 Niantic, CT 06357 Mr. J. W. "Bill" Sheehan Co-Chair NEAC 19 Laurel Crest Drive Waterford, CT 06385 Ms. Nancy Burton 147 Cross Highway Redding Ridge, CT 00870 Mr. Evan W. Woollacott Co-Chair Nuclear Energy Advisory Council 128 Terrys Plain Road Simsbury, CT 06070 Mr. Joseph Roy Director of Operations Massachusetts Municipal Wholesale Electric Company P.O. Box 426 Ludlow, MA 01056 Mr. William D. Bartron Licensing Supervisor Dominion Nuclear Connecticut, Inc.
Building 475, 5th Floor Roper Ferry Road Waterford, CT 06385 Mr. J. Alan Price Site Vice President Dominion Nuclear Connecticut, Inc.
Building 475, 5th Floor Rope Ferry Road Waterford, CT 06385 Mr. Chris L. Funderburk Director, Nuclear Licensing and Operations Support Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711