ML20205N082
| ML20205N082 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 04/12/1999 |
| From: | Lyon C NRC (Affiliation Not Assigned) |
| To: | Richard Anderson NORTHERN STATES POWER CO. |
| Shared Package | |
| ML20205N085 | List: |
| References | |
| GL-95-07, GL-95-7, TAC-M93487, NUDOCS 9904160142 | |
| Download: ML20205N082 (4) | |
Text
t A g il li, 1999 Mr. Roger O. Anderson, Direc;or Nuclear Energy Engineering Northem States Power Company 414 Nicollet Mall Minneapolis, Minnesota 55401
SUBJECT:
RESPONSE TO NRC GENERIC LETT._d 95-07," PRESSURE LOCKING AND THERMAL BINDING OF SAFETY VLATED POWER-OPERATED GATE VALVES," MONTICELLO NUCLL A GENERATING PLANT (TAC NO. M93487)
Dear Mr. Anderson:
Enclosed is the staff's safety evaluation of Northern States Power Company's (NSP's) response to NRC Generic Letter (GL) 95-07, " Pressure Locking and Thermal Binding of Safety-Related Power-Operated Gate Valves," for the Monticello Nuclear Generating Plant. GL 95-07 was i
issued on August 17,1995, and requested that licensees take actions to ensure that safety-
< elated power-operated gate valves that are susceptible to pressure locking or thermal binding are capable of performing their safety functions.
In a letter of February 12,1996, NSP submitted its 180-day response to GL 95-07 for Monticello Nucleu Generating Plant. The NRC staff reviewed the response and requested additional information in a letter dated June 18,1996. In a letter dated July 17,1996, NSP provided the additional information.
The staff has reviewed NSP's submittals and finds that it has adequately addressed the actions requested in GL 95-07, as discussed in the enclosed safety evaluation. This completes the staff's efforts on TAC No. M93487.
Sincerely, Original signed by:
Carl F. Lyon, Project Manager, Section 1 9904160142 990412 Project Directorate 111 A
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e April 12, 1999 Mr. Roger O. Anderson, Director i
Nuclear Energy Engineering Northem States Power Company 414 Nicollet Mall Minneapolia, Minnesota 55401
SUBJECT:
RESPONSE TO NRC GENERIC LETTER 95-07," PRESSURE LOCKING AND THERMAL BINDING OF SAFETY-RELATED POWER-OPERATED GATE VALVES," MONTICELLO NUCLEAR GENERATING PLANT (TAC NO. M93487)
Dear Mr. Anderson:
Enclosed is the staff's safety evaluation of Northem States Power Company's (NSP's) response to NRC Generic Letter (GL) 95-07, " Pressure Locking and Thermal Binding of Safety-Related Power-Operated Gate Valves," for the Monticello Nuc,iear Generating Plant. GL 05-07 was issued on August 17,1995, and requested that licensees take actions to ensure that safety-related power-operated gate valves thrit are susceptible to pressure locking or thermal binding are capable of performing their safety l unctions.
In a letter of February 12,1996, NLP submitted its 180-day response to GL 95-07 for Monticello Nuclear Generating Plant. The NRC staff reviewed the response and requested additional information in a letter dated June 18,1996. In a letter dated July 17,1996, NSP provided the additionalinformation.
The staff has reviewed NSP's submittals and finds that it has adequately addressed the actions requested in GL 95-07, as discussed in the enclosed safety evaluation. This completes the staff's efforts on TAC No. M93487.
l Sincerely, Original signed by:
Carl F. Lyon, Project Manager, Section 1 Project Directorate Ill Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-263
Enclosure:
As stated cc w/ encl: See next page DISTRIBUTION:
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49.....,o April 12, 1999 Mr. Roger O. Anderson, Director Nuclear Energy Engineering Northern States Power Company 414 Nicollet Mall Minneapolis, Minnesota 55401
SUBJECT:
RESPONSE TO NRC GENERIC LETTER 95-07," PRESSURE LOCKING AND THERMAL BINDING OF SAFETY-RELATED POWER-OPERATED GATE VALVES," MONTICELLO NUCLEAR GENERATING PLANT (TAC NO. M93487)
Dear Mr. Anderson:
Enclosed is the staffs safety evaluation of Northern States Power Company's (NSP's) response to NRC Generic Letter (GL) 95-07, " Pressure Locking and Thermal Binding of Safety Related Power-Operated Gate Valves," for the Monticello Nuclear Generating Plant. GL 95-07 was istued on August 17,1995, and requested that Fcensees take actions to ensure that safety-related power-operated gate valves that are susceptible to pressure locking or thermal binding are capable of performing their safety functions.
In a letter of February 12,1996, NSP submitted its180-day response to GL 95-07 for Monticello Nuclear Generating Plant. The NRC staff reviewed the response and requested additional information in a letter dated June 18,1996. In a letter dated July 17,1996, NSP provided the additionalinformation.
The staff has reviewed NSP's submittals and finds that it has adequately addressed the actions requested in GL 95-07, as discussed in the enclosed safety evaluation. This completes the staffs efforts on TAC No. M93487, Sincerely, Oxt F.p Carl F. Lyon, Project Manager, Section 1 i
i Project Directorate lil Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-263
Enclosure:
As stated cc w/enet: See next page i
Mr. Roger O. Anderson, Director Northem States Power Company Monticello Nuclear Generating Plant ec:
4 J. E. Silberg, Esquire Shaw, Pittman, Potts and Trowb:idge Commissioner 2300 N Street, N. W.
Department of Public Service Washington DC 20037 121 Seventh Place East Suite 200 U.S. Nuclear Regulatory Commission St. Paul, Minnesota 55101-2145 Resident inspector's Office 2807 W. County rom 75 Adonis A. Nebiett Monticello, Minnesc.a 65362 Assistant Attomey General Office of the Attomey General Plant Manager 445 Minnesota Street Monticello Nuclear Generating Plant Suite 900 ATTN: Site Licensing St. Paul, Minnesota 55101-2127 Northem States Power Company 2807 West County Road 75 Monticello, Minnesota 55362-9637 Robert Nelson, President Minnesota Environmental Control Citizens Association (MECCA) 1051 South McKni ht Road 0
St. Paul, Minnesota 55119 Commissioner Minnesota Pollution Control Agency 520 Lafayette Road St. Paul, Minnesota 55119 Regional Administrator, Region lll U.S. Nuclear Regalatory Commission 801 Warrenville Road Lisle, Illinois 60532-4351 Commissioner of Health Minnesota Department cf Haalth 717 Delaware Street, S. E.
Minneapolis, Minnesota 55440 Darla Groshens, Auditor / Treasurer Wright County Govemment Center 10 NW Second Street Buffalo, Minnesota 55313 March 1999 5