ML20053E437

Submits Agreements Reached During 820518 Discussions Re Anticipated Mods to Steam Generator Auxiliary Feedwater Distribution Headers.Written Work Scope for Attaching Nozzle Flange Prior to Work on Steam Generator Expected

ML20053E437
Person / Time
Site:	Rancho Seco
Issue date:	05/21/1982
From:	Stolz J Office of Nuclear Reactor Regulation
To:	Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT
References
TAC-48349, TAC-48384, NUDOCS 8206080088
Download: ML20053E437 (3)

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Docket y Kl, PUR LPDR ORB #4 Rdg DEisenhut Docket No. 50-312 OELD AE0D IE ACRS-10

!!r. J. J. !!attimoe RIngram Assistant General !!anager and MPadovan Chief Engineer Gray File Sacramento 11unicipal Utility EBlackwood District H0rnstein G201 S Street SMiner P. O. Box 15830 TIppolito Sacramento, California 95813

SUBJECT:

STENT GENERATOR INTERNAL FEEDWATER HEADER REPLACEMEllT On May 18,1982 discussions were held between J. !!attimoe, two Bfdl representatives and members of the NRC staff on the above subject.

The purpose of the discussions was to inform the NRC staff abou t anticipated modifications to be made to the Rancho Seco steam generator arf distribution headers. The proposed modifications centered around 1) deactivation and stabilization of the existing internal arf headers and 2) installation of an internal ARI ring header.

Our understanding of the agreements reached during these discussions is as follows:

1) S!!UD may proceed with the drilling of the 5 inch holes in the steam generator shell, provided a 10 CFR 50.59 review has been completed and approved by the PRC and MSRC.

2) An analysis indicating that the ASitE B&PV Code requirements have been met shall be completed, and all procedures necessary for the modifications shall be written and receive PRC review.

3) The design of the ARI external header will be reviewed by the NRC prior to its installation.

4) The NRC will approve the method of internal header stabilization prior to the stabilization work being performed.

5) The plant will not be started up until written approval from the NRC is received.

Subsequently, during a April 20, 1982 telephor,e conversation, SMUD agreed to provide a written work scope for attaching the nozzle flange prior to initiating work on the steam generator.

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DAT, OFFICIAL RECORD COPY usam i,u-mse t4ac ronu ais tia-so3 Nacu c24a l

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If your understanding of these commitments is different from the above, please contact your NRC Project Manager as soon as possible.

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John F. Stolz, Chief Operating Reactors Branch #4 Division of Licensing cc: See next page i

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NRC FORM 318 '(10-80) NRCM 0240 OFFICIAL RECORD COPY usa m ini_ m m

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Sacr'ainento\\ unicipal Utility Rancho Seco, Docket No. 50-312 M

District ccw/ enclosure (s):

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' David S. Kaplan, Secretary and Christopher Ellison, Esq.

General Counsel Dian Grueuich, Esq.

Sacramento Municipal Utility California Energy Comission District 1111 Howe Avenue 6201 S Street Sacramento, California 95825 P. O. Box 15830 Sacramento, California 95813 Ms. Eleanor Schwartz California State Office 600 Pennsylvania Avenue, S.E., Rm. 201 Sacramento County Board of Supervisors Washington, D. C.

20003 827 7th Street, Room 424 Sacramento, California 95814 Docketing and Service Section l

Office of the Secretary Business and Municipal Department U.S. Nuclear Regulatory Comission l

Sacramento City-County Library Washington, D. C.

20555 828 I Street Resident Inspcctor/ Rancho Seco Sacramento, California 95814 c/o U. S. N. R. C.

14410 Twin Cities Road Herald, CA 95638 Dr. Rir.hard F. Cole Atomic Safety & Licensing Board Panel U.S. Nuclear Regulatory Comission Washington, D. C.

20555

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Regional Radiation f.epresentative EPA Reaion IX Mr. Frederick J. Shon 215 Fremont Street Atomic Safety and Licensing Board San Francisco, California 94111 Panel U.S. Nuclear Regulatory Comission Mr. Rcbert B. Borsum Washington, D. C.

20555 Babcock & Wilcox Nuclear Power Generation Division Elizabeth S. Bowers, Esq.

Suite 220, 7910 Woodnont Avenue Chainnan, Atomic Safety and Bethesda, Maryland 20814 Licensing Board Panel U.S. Nuclear Regulatory Comission Thomas Baxter, Esq.

Washington, D. C.

20555 Shaw, Pittman, Potts & Trowbridge 1800 M Street, N.W.

Washington, D. C.

20036 Herbert H. Brown, Esq.

Lawrence Coe Lanpher, Esq.

Hill, Christopher and Phillips, P.C.

1900 M Street, N.W.

Atomic Safety and Licensing Board Washington, D. C.

20036 Panel U.S. Nuclear Regulatory Commission Helen Hubbard Washington, D. C.

20555 P. O. Box 63 Sunol, California 94586

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SacraEntohunicipal Utility District Atomic Safety and Licensing Appeal Mr. Robert H. Engelken, Regional Administrator U. S. Nuclear Regulatory Comission, Region V Board Panel U.S. Nuclear Regulatory Comission 1990 N. California Boulevard, Suite 202 Washington, D. C.

20555 Walnut Creek, California 94596 Alan S. Rosenthal, Chairman Atomic Safety and Licensing Appeal Board U. S. Nuclear Regulatory Comission Washington, D. C.

20555 Dr. John H. Buck l

Atomic Safety and Licensing Appeal Board U. S. Nuclear Regulatory Comission Washington, D. C.

20555 Christine H. Kohl Atomic Safety and Licensing Appeal Board U. S. Nuclear Regulatory Comission Washington, D. C.

20555 I

California Department of Health ATTN: Chief. Environmental Radiation Control Unit Radiological Health Section 714 P Street, Room 498 Sacramento, California 95814

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