ML040230263
| ML040230263 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 01/30/2004 |
| From: | Padovan L NRC/NRR/DLPM/LPD3 |
| To: | Thomas J. Palmisano Nuclear Management Co |
| References | |
| TAC MC0751 | |
| Download: ML040230263 (5) | |
Text
January 30, 2004 Mr. Thomas J. Palmisano Site Vice President Monticello Nuclear Generating Plant Nuclear Management Company, LLC 2807 West County Road 75 Monticello, MN 55362-9637
SUBJECT:
MONTICELLO NUCLEAR GENERATING PLANT REQUEST FOR ADDITIONAL INFORMATION RELATED TO THE FIRE PROTECTION EXEMPTION REQUEST FOR THE TORUS COMPARTMENT (TAC NO. MC0751)
Dear Mr. Palmisano:
The Nuclear Management Company, LLC, letter of September 15, 2003, requested the Nuclear Regulatory Commission (NRC) to authorize an exemption from the automatic fire supression system requirements of Title 10 of the Code of Federal Regulations (10 CFR), Part 50, Appendix R,Section II.G.2.b. The NRC staff is reviewing your request and finds that additional information is needed as shown in the enclosed request for additional information (RAI).
I discussed the enclosed RAI with Mr. John Fields of your organization on January 29, 2004, and he agreed to respond by February 27, 2004. Please contact me at (301) 415-1423 if you have questions.
Sincerely,
/RA/
L. Mark Padovan, Project Manager, Section 1 Project Directorate III Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-263
Enclosure:
Request for Additional Information cc w/encl: See next page
ML040230263 OFFICE PDIII-1/PM PDIII-1/LA PDIII-1/SC NAME MPadovan RBouling LRaghavan DATE 01/29/04 01/29/04 01/30/04
ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION FIRE PROTECTION EXEMPTION REQUEST FOR THE TORUS COMPARTMENT DATED SEPTEMBER 15, 2003 NUCLEAR MANAGEMENT COMPANY, LLC MONTICELLO NUCLEAR GENERATING PLANT DOCKET NO. 50-263
- 1. Division 1 level transmitter LT7338A and its cable are shown on Figure 2 of Nuclear Management Company, LLCs (NMC's), letter of September 15, 2003. A notation on Figure 1 in NMCs letter shows where the cable for LT7338A exits through the ceiling. The cable does not appear to extend to where the penetration is located. What is the correct depiction?
- 2. Figure 2 shows that Division 2 level transmitter LT7338B is connecting to the same conduit system downstream of Division 2 temperature element TE4075B, while Division 2 temperature elements TE4073B and TE4074B are shown as exiting the torus room at column lines L and 5.1. Is this an accurate representation? Note that the opening statement in Attachment 1, Section B, Background, of NMC's letter of September 15, 2003, discusses the incorrect depiction of the Division II suppression pool level transmitter in your submittal of October 28, 1982.
- 3. For the suppression pool temperature monitoring system, discuss how the system automatically eliminates 1) a failed temperature element or 2) fire-induced failure of the cable to the temperature elements that is inside conduit (hot short, short to ground, open, or increased/decreased resistance or voltage).
- 4. Clarify the method which NMC used to measure distances, and provide a minimum distance or a tolerance for the separation of divisional equipment.
- 5. Clarify the total amount of transient combustibles and/or heat release rate expected for the torus area, as discussed in Attachment 1, Section C, Item 5.a., Type, Configuration and Quantity of Combustibles, of your September 15, 2003, letter. Please include information pertaining to prestaging for outages (especially storage of scaffolding).
Monticello Nuclear Generating Plant cc:
Jonathan Rogoff, Esquire Vice President, Counsel & Secretary Nuclear Management Company, LLC 700 First Street Hudson, WI 54016 U.S. Nuclear Regulatory Commission Resident Inspectors Office 2807 W. County Road 75 Monticello, MN 55362 Manager, Regulatory Affairs Monticello Nuclear Generating Plant Nuclear Management Company, LLC 2807 West County Road 75 Monticello, MN 55362-9637 Robert Nelson, President Minnesota Environmental Control Citizens Association (MECCA) 1051 South McKnight Road St. Paul, MN 55119 Commissioner Minnesota Pollution Control Agency 520 Lafayette Road St. Paul, MN 55155-4194 Regional Administrator, Region III U.S. Nuclear Regulatory Commission 801 Warrenville Road Lisle, IL 60532-4351 Commissioner Minnesota Department of Health 717 Delaware Street, S. E.
Minneapolis, MN 55440 Douglas M. Gruber, Auditor/Treasurer Wright County Government Center 10 NW Second Street Buffalo, MN 55313 Commissioner Minnesota Department of Commerce 121 Seventh Place East Suite 200 St. Paul, MN 55101-2145 Manager - Environmental Protection Division Minnesota Attorney Generals Office 445 Minnesota St., Suite 900 St. Paul, MN 55101-2127 John Paul Cowan Executive Vice President & Chief Nuclear Officer Nuclear Management Company, LLC 700 First Street Hudson, WI 54016 Nuclear Asset Manager Xcel Energy, Inc.
414 Nicollet Mall, R.S. 8 Minneapolis, MN 55401 October 2003