ML041540010

RAI, Intake Structure

ML041540010
Person / Time
Site:	Monticello
Issue date:	06/15/2004
From:	Padovan L NRC/NRR/DLPM/LPD3
To:	Thomas J. Palmisano Nuclear Management Co
Padovan L, NRR/DLPM, 415-1423
References
TAC MC1803
Download: ML041540010 (4)

Text

June 15, 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 INTAKE STRUCTURE APPENDIX R EXEMPTION REQUEST (TAC NO. MC1803)

Dear Mr. Palmisano:

The Nuclear Management Company, LLC, letter of November 17, 2003, requested the Nuclear Regulatory Commission (NRC) to authorize a permanent exemption from the requirements of Title 10 of the Code of Federal Regulations (10 CFR), Part 50, Appendix R,Section III.G.2.b., as it applies to Fire Area IX/Fire Zone 23A at the Monticello Nuclear Generating Plant. The NRC staff is reviewing your request and finds that the following additional information is needed:

1. Provide the design water density of the pre-action sprinkler system in the intake structure.

2. The Fire Hazards Analysis does not discuss sodium hypochlorite and other hazards that it may present at ambient conditions or when heated and decomposing. What effects would this chemical, or its residue, present when mixed with the combustibles (lubricating oil, non-Institute of Electrical and Electronics Engineers standard -383 cable, and transients) in the room? Hazardous materials are discussed in the NRCs Branch Technical Position (BTP)

Auxiliary and Power Conversion Systems Branch (APCSB) 9.5.1, Fire Protection System, Section G.3.

3. Define and quantify the transient combustibles in the fire area allowed by procedure(s).

4. Do the equipment shrouds around the residual heat removal service water and emergency service water pumps provide containment for leaking oil at the floor level? Are there dikes around other pumps to limit the spread of leaking oil? If not, what other features (such as floor drains) would limit the size of an oil spill?

T. Palmisano I discussed this request for additional information with Mr. John Fields of your organization on June 7, 2004, and he agreed to respond within 30 days of receipt of this letter. 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 cc: See next page

ML041540010 OFFICE PDIII-1/PM PDIII-1/LA PDIII-1/SC NAME MPadovan RBouling LRaghavan DATE 06/09/04 06/08/04 06/09/04 Monticello Nuclear Generating Plant cc:

Jonathan Rogoff, Esquire Commissioner Vice President, Counsel & Secretary Minnesota Department of Commerce Nuclear Management Company, LLC 121 Seventh Place East 700 First Street Suite 200 Hudson, WI 54016 St. Paul, MN 55101-2145 U.S. Nuclear Regulatory Commission Manager - Environmental Protection Division Resident Inspectors Office Minnesota Attorney Generals Office 2807 W. County Road 75 445 Minnesota St., Suite 900 Monticello, MN 55362 St. Paul, MN 55101-2127 Manager, Regulatory Affairs John Paul Cowan Monticello Nuclear Generating Plant Executive Vice President & Chief Nuclear Nuclear Management Company, LLC Officer 2807 West County Road 75 Nuclear Management Company, LLC Monticello, MN 55362-9637 700 First Street Hudson, WI 54016 Robert Nelson, President Minnesota Environmental Control Nuclear Asset Manager Citizens Association (MECCA) Xcel Energy, Inc.

1051 South McKnight Road 414 Nicollet Mall, R.S. 8 St. Paul, MN 55119 Minneapolis, MN 55401 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 October 2003