ML20005G241

Advises That Util Not Required to Take Addl Actions to Address Generic Ltr 89-08, Erosion/Corrosion-Induced Pipe Wall Thinning as Long as Plant Proceeds Towards Closure. Response to Ltr Required Prior to Going Above Cold Shutdown

ML20005G241
Person / Time
Site:	Rancho Seco
Issue date:	01/03/1990
From:	Reynolds S Office of Nuclear Reactor Regulation
To:	Keuter D SACRAMENTO MUNICIPAL UTILITY DISTRICT
References
GL-89-08, GL-89-8, TAC-73531, NUDOCS 9001180324
Download: ML20005G241 (3)

Text

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January 3, 1990 c

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Docket No. 50-312 Mr. Dan R. Keuter Assistant General Manager, Nuclear Rancho Seco Nuclear Generating Station 14440 Twin Cities Road Herald, California 95638-9799

SUBJECT:

GENERIC LETTER 89-08, EROSION / CORROSION-INDUCED. PIPE WALL TilINNING 1

(TACNO.73531)

Generic Letter (GL) 89-08 was issued on May 2,1989, and asked you to provide assurances that you had implemented or will implement a program that ensures that erosion / corrosion - induced pipe wall thinning will not lead to unaccept-able degradation of single phase or two-phase high-energy carbon steel system.

In your reply letter dated June 30, 1989, you stated that the Sacramento

. Municipal Utility District (SMUD) " plans to defuel the reactor and is proceeding toward closure of the facility." You further stated that since SMUD's plans are to defuel and close the f acility, the concerns addressed in GL 89-08 are not applicabic.

After review,' the NRC staff has determined that you do not have to take any additional actions to address GL 89-08 as long as you proceed towards plant pursuant to'10 CFR 50.54(f), going above cold shutdown you are requ closure. However, prior to to adequately respond to GL 89-08.

Sincerely, original signed by Steven A. Reynolds, Project Manager Project Di ectorate V r

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F WAsMiwGioN, D. C. 20666 January 3, 1990 Docket tio. 50-312 Mr. Dan R. Keuter Assistant General Manager, Nuclear Rancho Seco Nuclear Generating Station 14440 Twin Cities Road Herald,. California 95638-9799

Dear tir. Keuter:

SUEJEC1: GENERIC LETTER E9-08, EROS 10ll/COPROS10ft-INDUCED PIPE WALL THIIINING (TACNO.73531)

GenericLetter(GL)89-08wasissuedenMay2,1989,andaskedyoutoprovide assurar.ces that you had implemented or will implement a program that ensures thtt crosion/ corrosion - induced pipe wall thinning will not lead to unaccept-cble degradetion of single phase or two-phase high-energy carbon steel system.

In your reply letter dated June 30. 1989, you stated that the Secrarnento liunicipal Utility District (SMUD) " plans to defuel the reactor and is proceeding toward cicture of the facility." You further stated that since SMUD's piens are to defuel and close the facility, the concerns addressed in GL 89-0P are not applicabic.

After revicw, the t:RC staff has determined that you do not have to take try additionai actior.s to address GL 89-08 as long as you proceed towards plant

closure, riowever. prior to going above cold shutdown you are required.

pursuant to 10 CFR 60.5a(f), to adequately respond to GL 89-0E.

Sincerely, A a 4a Steven A. Reynolds, Project Manager Project Directorate V Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation 1

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,4 Mr. Dan Keuter Rancho Seco Nuclear Generating Station 4

CC:

Ms. Jan Schori, General Manager Mr. John Bartus Sacramento Municipal Utility District Ms. JoAnne Scott 6201 S Street Federal Energy Regulatory Commission P.O. Box 15830 825 North Capitol Street, N. E.

Sacramento, California 95813 Washington, D.C.

20425 Thomas A. Baxter, Esq.

Ms. Helen Hubbard Shaw, Pittman, Potts & Trowbridge P. O. Box 63 7

2300 N Street, N.W.

Sunol, California 94586.

Washington, D.C.

20037 Environmental Conservation Mr. Steven Crunk Organization Manager, Nuclear Licensing Suite 320 Sacramento Municipal Utility District 101 First Street Rancho Seco Nuclear Generating Station Los Altos, California 94022 1.

l 14440 Twin Cities Road Herald, California 95638-9799 Mr. Robert B. Borsum, Licensing Representative Babcock & Wilcox Nuclear Power Division i

1700 Rockville Pike - Suite 525 Rockville, Maryland 20852 Resident Inspector / Rancho Seco c/o U. S. N. R. C.

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14440 Twin Cities Rotd Herald, Californic 95658 I

Regional Administrator, Region V 1

U.S. Nuclear Regulatcry Commissio 1 1450 Maria Lane, Suite 210 Walnut Creek, California 94S96 Mr. John Hickman Senior Health Physicist Environmental Radioactive Management l-Unit Environmental Management Branch State Department of Health Services 714 P Street, Room 616 Sacramento, California 95814 Sacramento County Board of Supervisors 700 H Street, Suite 2450 Sacramento, California 95814 (11)

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