ML20211D450
| ML20211D450 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 09/16/1997 |
| From: | Kim T NRC (Affiliation Not Assigned) |
| To: | Richard Anderson NORTHERN STATES POWER CO. |
| References | |
| GL-96-06, GL-96-6, TAC-M96835, NUDOCS 9709290137 | |
| Download: ML20211D450 (3) | |
Text
Septemaer 16, 1997 Mr. Roger 0. Anderson, Director Licensing and Management Issues Norttern States Power Company 414 Nicollet Mall Minneapolis, Minnesota 55401
SUBJECT:
MONTICELLO NUCLEAR GENERATING PLANT - REQUEST FOR ADDITIONAL INFORMATION RELATED TO THE MONTICELLO RESPONSE TO GENERIC LETTER 96-06 (TAC NO. M96835)
Dear Mr. Anderson:
On September 30, 1996, the Nuclear Regulatory Commission (NRC) issued Generic Letter 96 06, " Assurance of Equipment Operability and Containment Integrity During Design-Basis Accident Conditions." On October 25, 1996, and January 28, 1997. Northern States Power Company (NSP) provided the required responses to the generic letter.
Additional information, as discussed in the enclosure, is requested in order for the staff to complete its review.
NRC requests that NSP respond by October 30. 1997.
If you have any questions concerning this request, please contact me at (301) 415-1392.
Sincerely.
ORIGINAL SIGNED BY Tae Kim -Senior Project Manager Project Directorate 111 1 Division of Reactor Projects Ill/IV Office of Nuclear Reactor Regulation Docket No. 50-263
Enclosure:
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Mr. Roger O. Anderson, Director Monticello Nuclear Generating Plant Northem States Power Company l
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J, E. Silberg, Esquire Kris Sanda, Commissioner i
Shaw, Pittman, Potts and Trowbridge Department of Public Servios j
2300 N Street, N. W.
121 Seventh Place East Washington DC 20037 Suite 200 l
Sti Paul, Minnesota 55101 2145 i
U.S. Nuclear Regulatory Commission l
Resident inspector's Office Adonis A. Noblett 2807 W. County Road 75 Assistant Attomey General Monticello, Minnesota 55362 office of the Attomey General 445 Minnesota Street i
Plant Manager Suite 900 Monticello Nuclear Generating Plant St. Paul, Minnesota 55101 2127 ATTN: Site Licensing l
Northem States Power Company 2807 West County Road 75 l
Monticello, Minnesota 55362 9637 Robert Nelson, President I
Minnesota Environmental Control Citizens Association (MECCA) i 1051 South McKnight Road i
St. Paul, Minnesota 5511g i-Commissioner i
Minnesota Pollution Control Agency 520 Lafayette Road
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St. Paul, Minnesota 55119 i
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Regional Administrator, Region ill
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U.S. Nuclear Regulatory Commission 801 Warrenville Road
- Lisle, Illinois 60532-4351
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Commissioner of Health Minnesota Department of Health
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717 Delaware Street, S. E.
Minneapolis, Minnesota 55440
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l Darla Groshens, Auditor / Treasurer
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Wright County Govemment Center 10 NW Second Street Buffalo, Minnesota 55313 i
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i REQUEST FOR ADDITIONAL INFORMATION RELATED TO THE HONTICELLO RESPONSE TO GENERIC LETTER 96 06 (TAC N0. M96835)
In its January 28, 1997. letter responding to Generic Letter 96 06, Northern States Power Company (NSP) identified thirteen pipes that penetrated containment and were susceptible to thermally induced pressurization.
NSP indicated that it had determined some of the thirteen pipes to be acceptable by analysis, and that some pipes were drained.
NSP also indicated that it would pursue the installation of permanent pressure relief devices on six of the thirteen pipes.
The NRC requests that NSP provide summaries of the evaluations performed for the pipes in the thirteen affected penetrations.
The summaries should include fabrication drawings of the piping sections evaluated and describe the method of analysis, including the assumptions used in the analyses, and the results.
The response from NSP should also explain how the criteria used for the evaluations meet the licensing basis criteria for Monticello and provide the s:hedule for the completion of any modifications that may be required.
ENCLOSURE
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