ML20246M627

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Advises That plant-specific Reactor Coolant Pump Trip Setpoint Development,Per TMI Action Item II.K.3.5, Acceptable,Based on Methodology Contained in Generic Ltr 86-05
ML20246M627
Person / Time
Site: Rancho Seco
Issue date: 05/11/1989
From: Reynolds S
Office of Nuclear Reactor Regulation
To: Firlit J
SACRAMENTO MUNICIPAL UTILITY DISTRICT
References
TASK-2.K.3.05, TASK-TM GL-86-05, GL-86-5, TAC-49680, NUDOCS 8905190202
Download: ML20246M627 (3)


Text

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May 11, 1989

.. a Docket No.: 50-312 Mr. Joe Firlit Chief Executive Officer, Nuclear Rancho Seco Nuclear Generating Station 14440 Twin Cities Road Herald, California 95638-9799

SUBJECT:

REACTOR COOLANT PUMP TRIP FOR RANCHO SECO (TAC No. 49680)

Dear Mr. Firlit:

For the reactor ccolant pump (RCP) trip issue defined in the TMI Action plan item II.K.3.5 (Multiplant Action G-01), the staff generically approved the Babcock & Wilcox Owners Group (BWOG) methodology in Generic Letter 86-05, with the condition that plant-specific information needs to be addressed. Our review of the Rancho Seco plant-specific information has progressed to a degree that we can conclude that implementation of the BWOG methodology has signifi-cantly improved the reactor safety, and there are no major safety-significant concerns for the plant-specific information.

Accordingly, we have completed our review of your plant-specific RCP trip setpoint development and find it acceptable. This issue may be the subject of on-site verification.

Sincerely,

/s/

Steven A. Reynolds, Project Manager Project Directorate V Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation cc:

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May 11, 1989 Docket No.: 50-312 Mr. Joe Firlit Chief Executive Officer, Nuclear Rancho Seco Nuclear Generating Station 14440 Twin Cities Road Herald, California 95638-9799

SUBJECT:

REACTOR COOLANT PUMP TRIP FOR RANCHO SECO (TAC No. 49680)

Dear Mr. Firlit:

For the reactor coolant pump (RCP) trip issue defined in the TMI Action plan itemII.K.3.5(MultiplantActionG-01),thestaffgenericallyapprovedthe Babcock & Wilcox Cwners Group (BWOG) methodology in Generic Letter 86-05, with the condition that plant-specific information needs to be addressed. Our review of the. Rancho Seco plant-specific information has progressed to a degree that we can conclude that implementation of the BWOG methodology.has signifi-cantly improved the reactor safety, and there are no major safety-significant concerns for the plant-specific information.

Accordingly, we have completed our review of your plant-specific RCP trip setpoint development and find it acceptable. This issue may be the subject of on-site verification.

Sincerely, 1

Steven A. Reynolds, Project Manager Project Directorate V Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation cc: See attached list I

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i Mr. David S. Kaplan, Secretary Mr. John Bartus and General Counsel Ms. JoAnne Scott Sacramento Municipal Utility District

. Federal Energy Regulatory Commission 6201 S Street 825 North Capitol Street, N. E.

P.O. Box'15830 Washington, D.C.

20425 Sacramento, California 95813 Thomas A. Baxter, Esq.

Ms. Helen Hubbard Shaw, Pittman, Potts & Trowbridge P. O. Box 63 2300 N Street, N.W.

Sunol, California 94586 Washington, D.C.

20037 Mr. Steven Crunk Manager, Nuclear Licensing Sacramento Municipal Utility District Rancho Seco Nuclear Generating Station 14440 Twin Cities Road Herald, California 95638-9799 Mr. Robert B. Borsum, Licensing Representative Babcock & Wilcox Nuclear Power Division 1700 Rockville Pike - Suite 525 Rockville, Marylano 20852 Resident Inspector / Rancho Seco c/o U. S. N. R. C.

14440 Twin Cities Road Herald, California 95638 Regional Administrator, Region V U.S. Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Mr. Paul Szalinski, Chief Radiological Health Branch State Department of Health Services 714 P Street, Office Building #8 Sacramento, California 95814 Sacramento County Board of Supervisors 700 H Street, Suite 2450 Sacramento, California 95814 l

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