ML20248H031
| ML20248H031 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 05/29/1998 |
| From: | Kim T NRC (Affiliation Not Assigned) |
| To: | Richard Anderson NORTHERN STATES POWER CO. |
| References | |
| GL-97-04, GL-97-4, TAC-MA0012, TAC-MA12, NUDOCS 9806080032 | |
| Download: ML20248H031 (3) | |
Text
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UNITED STATES L
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NUCLEAR REGULATORY COMMISSION f
WASHINGTON, D.C. - aaa1 h
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May 29, 1998 Mr. Roger O. Anderson, Director Nuclear Energy Engineering Northern States Power Company 414 Nicollet Mall Minneapolis, MN 55401
SUBJECT:
COMPLETION OF LICENSING ACTION FOR GENERIC LETTER 97 MONTICELLO NUCLEAR GENERATING PLANT (TAC NO. MA0012)
Dear Mr. Anderson:
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The U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 97-04, " Assurance I
of Sufficient Net Positive Suction Head for Emergency Core Cooling and Containment Heat
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Removal Pumps," to all holders of operating licenses or construction permits on October 7, i
1997. The NRC issued GL 97-04 to confirm the adequacy of the net positive suction head (NPSH) available for emergency core cooling (including core spray and decay heat removal) and containment heat removal pumps under all design-basis accident scenarios.
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in GL 97-04, the NRC staff specifically requested that licensees provide the information outlined
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below for each of their facilities.
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- 1. Specify the general methodology used to calculate the head loss associated with'the emergency core cooling system (ECCS) suction strainers.
- 3. Specify whether the current design-basis NPSH analysis differs from the most recent analysis reviewed and approved by the NRC for which a safety evaluation was issued.
- 4. Specify whether containment overpressure (i.e., containment pressure above the vapor pressure of the sump or suppression pool fluid) was credited in the calculation of available NPSH. Specify the amount of overpressure needed and the minimum overpressure l
available.
- 5. When containment overpressure is credited in the calculation of ava;lable NPSH, confirm that an appropriate containment pressure analysis was done to establish the minimum containment pressure.
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l Mr. Roger O. Anderson
-2 May 29, 1998 l
l In response to GL 97-04, you provided a letter dated October 31.1997, for the Monti::ello l
Nuclear Generating Plant. This submittal provided the information requested by GL 97-04. The staff has reviewed your response and has cor.cluded that all requested information has been pro \\Wed; therefore, we consider GL 97-04 to be closed for your facility. Thank you for your prompt and complete response.
If you t ve any questions regarding this matter, please contact Tae Kim at (301)415-1392.
Sincerely, ORIGINAL SIGNED BY Tae Kim, Senior Project Manager Project Directorate 111-1 i
Division of Reactor Projects - Ill/IV Office of Nuclear Reactor Regulation Docket No. 50-263 cc: See next page DISTRIBUTION:
Docket File (50-263)
PUBLIC PD31 Reading File E. Adensam C. Carpenter T. Kim C. Jamerson ACRS OGC D. Skay, Lead PM J. Kudrick, NRR K. Kavanagh, NRR J. McCormick-Barger DOCUMENT NAME: G:\\WPDOCS9AONTICEL\\MONA0012.LTR T, receive a copy of this documerit, Indicate in the box "C" = CCay without attw._,c,i..&sure
E" = Copy withattachrrent/ enclosure "N" = No copy OFFICE PM:PD31 a lE LA:PD31 "E SR@ @RR lV, SCSB:Wl D:PD31 NAME TKim:7//g CJamerson Ga/ ROaMb&
JKudriR ])
CACarpentqClE DATE 5/ 2)f /98 5/'J%. /98 //
$('lS /98 gtP 6/67
- 4
$;}c) /98 OFplAL RECORD COPY
l Mr. Roger O. Anderson, Director Monticello Nuclear Generating Plant 0
Northem States Power Company cc:
J. E. Silberg, Esquire Kris Sanda, Commissioner Shaw, Pittman, Potts and Trowbridge Department of Public Service l
2300 N Street, N. W.
121 Seventh Place East l
Washington DC 20037 Suite 200 St. Paul, Minnesota 55101-2145 U.S. Nuclear Regulatory Commission I
Resident inspector's Office Adonis A. Nebiett 2807 W. County Road 75 Assistant Attomey General Monticello, Minnesota 55362 Office of the Attomey Gene al l
445 Minnesota Street Plant Manager Suite 900 l
Monticello Nuclear Generating Plant St. Paul, Minnesota 55101-2127 ATTN: Site Licensing Northem States Power Company 2807 West County Road 75 l
Monticello, Minnesota 55362-9637 l
Robert Nelson, President Minnesota Environmental Control Citizens Association (MECCA) l 1051 South McKnight Road St. Paul, Minnesota 55119 I
l Commissioner Minnesota Pollution Control Agency l
520 Lafayette Road l
St. Paul, Minnesota 55119 l
Regional Administrator, Region ill U.S. Nuclear Regulatory Commission 801 Warrenville Road l
Lisle, Illinois 60532-4351 l
Commissioner of Health Minnesota Department of Health 717 Delaware Street, S. E.
Minneapolis, Minnesota 55440 Daria Groshens, AuditorTTreasurer Wright County Govemment Center 10 NW Second Street Buffalo, Minnesota 55313 January 1995
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