ML20151W156
| ML20151W156 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 09/10/1998 |
| From: | Mcdonald D NRC (Affiliation Not Assigned) |
| To: | Bowling M, Loftus P NORTHEAST NUCLEAR ENERGY CO. |
| References | |
| TAC-MA2416, NUDOCS 9809150199 | |
| Download: ML20151W156 (4) | |
Text
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September 10, 1998 Mr. Martin L. Bowling Recovery Officer - Technical Services Northeast Nuclear Energy Company c/o Ms. Patricia A. Loftus Director - Regulatory Affairs P.O. Box 128 Waterford, CT 06385
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION REGARDING FOUR 10 CFR PART 50, APPENDIX R, EXEMPTION REQUESTS - MILLSTONE NUCLEAR POWER STATION, UNIT NO. 2 (TAC NO. MA2416)
Dear Mr. Bowling:
By letter dated July 31,1998, Northeast Nuclear Energy Company (NNECO) requested three exemptions from the requirements of Title 10 of the Code of Fedtral Reaulations. Part 50 (10 CFR Part 50), Appendix R, Section Ill.G, to the extent that it requires automatic suppression for the three affected fire areas for Millstone Nuclear Power Station, Unit No. 2. In addition, a fourth exemption was requested from the requirements of 10 CFR Part 50, Appendix R, Section Ill.J, to the extent that it requires emergency lighting units with at least an 8-hour battery power supply to light all areas needed for operation of safe shutdown equipment and for access and egress routs thereto.
3 The NRC staff has completed a preliminary review of your request and has identified several issues that require additionalinformation. Please respond to the enclosed request for additional information within 30 days of receipt of this letter in order for the staff to complete its review.
Sincerely, priginal Sigacd by:
Daniel G. Mcdonald Jr., Senior Project Manager Millstone Project Directorate Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation Docket No. 50-336 DISTRIBUTION OGC Gimbro Docket File LBerry CBajwa,SPLB
Enclosure:
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REQUEST FOR ADDITIONAL INFORMATION e
MILLSTONE NUCLEAR POWER STATION. UNIT NO. 2 DOCKET NO. 50-336 1.
It has recently been revealed that Millstone Unit 1 wi!! be permanantly shut down and decommissioned. The current Appendix R Compliance Review relies on a backfeed from Unit 1 to power Unit 2 for safe shutdown in the event of certain postulated fires in the intake Structure and East 480 V Switchgear Room. Discuss whether or not the decommissioning of Millstone Unit 1 will affect compliance with Appendix R for Unit 2.
2.
On page 18 of your submittal, you state: "The charging pumps are spaced approximately 18' from each other and are separated by reinforced concrete missile shield partial height walls approximately 17' on center and approximately two feet thick."
You do not state how high the partial height walls are. State the height of the partial height walls and the height of the ceiling in the charging pump room.
3.
On page 26 of your submittal, you state: ".. security lighting shall be credited for access and egress route emergency lighting in lieu of an 8-hour battery supply in the yard area."
State if 8-hour battery powered emergency lighting is available to provide proper illumination for actions to be taken at Electrical Bus 14H, the intake Structure, and the j
RWST pipe enclosure.
4.
On page 28, you further state: "There are portable lighting units dedicated for operations department usc." State the type of portable lighting provided and the frequency of functional checks on this equipment.
5.
On page 10 of your submittal, you state: " Cables associated with Appendix R equipment are also located in the area, specifically cables associated with both trains of low pressure safety injection (LPSI A and B), and reactor building component cooling water (RBCCW A and B)." State how these cables associated with Appendix R equipment are protected from fire damage.
6.
Discuss how defense-in-depth is provided for in the charging pump room, where there is only fire detection and a fire extinguisher provided. In your response, discuss how, if the fire detection were to fail and there are no other means to detect the fire, it would not spread from one pump to another.
7.
On page 21 of your submittal, you state: "To ensure post fire safe shutdown capability in this area, the Technical Requirements Manual (TRM) will be revised to include operational restrictions on the "B" and "C" charging pumps to limit the duration when one of these pumps is out of service. The TRM will also specify compensatory measures to be implemented to provide additional fire protection capability in the area of concern when one of these pumps is out of service." State, specifically, what operational restriction will be put in place. State, specifically, what compensatory measures will be implemented. State the schedule for these changes to the TRM.
Enclosure
Millstone Nuclear Power Station Unit 2 cc:
Ullian M. Cuoco, Esquire Mr. F. C. Rothen Senior Nuclear Counsel Vice President - Work Services Northeast Utilities Service Company Northeast Utilities Service Company P. O. Box 270 P. O. Box 128 Hartford, CT 06141-0270 Waterford, CT 06385 Mr. John Buckingham Emest C. Hadley, Esquire Department of Public Utility Control 1040 B Main Street Electric Unit P.O. Box 549 10 Liberty Square West Wareham, MA 02576 New Britain, CT 06051 Mr. John F. Streeter Mr. Kevin T. A. McCarthy, Director Recovery Officer - Nuclear Oversight Monitoring and Radiation Division Northeast Utilities Service Company Department of Environmental Protection P. O. Box 128 79 Elm Street Waterford, CT 06385 Hartford, CT 06106-5127 1
Mr. David B. Amerine j
Regional Administrator, Region l Vice President - Human Services i
U.S. Nuclear Regulatory Commission Northeast Utilities Service Company 475 Allendale Road P. O. Box 128 King of Prussia, PA 19406 Waterford, CT 06335 First Selectmen Mr. Allan Johanson, Assistant Director Town of Waterford Office of Policy and Management Hall of Records Policy Development and Planning 200 Boston Post Road Division Waterford, CT 06385 450 Capitol Avenue - MS# 52ERN P. O. Box 341441 Mr. Wayne D. Lanning, Director Hartford, CT 06134-1441 M:ihtone inspections Omce of the Regional Administrator Mr. M. H. Brothers 475 Allendale Road Vice President - Operations King of Prussia, PA 19406-1415 Northeast Nuclear Energy Company P.O. Box 128 Charles Brinkman, Manager Waterford, CT 06385 Washington Nuclear Operations ABB Combustion Engineering Mr. J. A. Price 12300 Twinbrook Pkwy, Suite 330 Director - Unit 2 Rockville, MD 20852 Northeast Nuclear Energy Company P.O. Box 128 Senior Resident inspector Waterford, CT 06385 Millstone Nuclear Power Station c/o U.S. Nuclear Regulatory Commission P.O. Box 513 Niantic, CT 06357 l
Millstone Nuclear Power Station Unit 2 cc:
Mr B. D. Kenyon (Acting)
Attomey Nicholas J. Scobbo, Jr.
Chief Nucler Officer-Millstone Ferriter, Scobbo, Caruso, Rodophele, PC Northeast Nuclear Energy Company 1 Beacon Street,11th Floor P.O. Box 128 Boston, MA 02108 Waterford, CT 06385 Mr. J. P. McElwain Citizens Regulatory Commission Recovery Officer-Millstone Unit 2 ATTN: Ms. Susan Perry Luxton Northeast Nuclear Energy Company 180 Great Neck Road P. O. Box 128 Waterford, CT 06385 Waterford, Connecticut 06385 Deborah Katz, President Citizens Awareness Network P. O. Box 83 Shelbume Falls, MA 03170 The Honorable Terry Concannon Co-Chair Nuclear Energy Advisory Council Room 4035 Legislative Office Building Capitol Avenue Hartford, CT 06106 Mr. Evan W. Woollacott Co-Chair Nuclear Energy Advisory Council 128 Terry's Plain Road j
Simsbury, CT 06070 Little Harbor Consultants, Inc.
Millstone - ITPOP Project Office P. O. Box 0630 Niantic, CT 06357-0630 Mr. Daniel L. Curry Project Director Parsons Power Group Inc.
2675 Morgantown Road Reading, PA 19607