ML20215N675

Forwards Safety Evaluation Supporting Util Responses to Generic Ltr 83-28,Item 4.4 Re Improvements in Maint & Test Procedures for B&W Plants.Technical Evaluation Rept EGG-NTA-7910 Encl

ML20215N675
Person / Time
Site:	Rancho Seco
Issue date:	11/04/1986
From:	Stolz J Office of Nuclear Reactor Regulation
To:	Julie Ward SACRAMENTO MUNICIPAL UTILITY DISTRICT
Shared Package
ML20215N676	List: ML20215N675 ML20215N688
References
GL-83-28, TAC-53958, NUDOCS 8611070151
Download: ML20215N675 (2)

Text

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f November 4, 1986 N Docket No. 50-312 g

, b \L Mr. John E. Ward, Deputy General Manager, Nuclear Sacramento Municipal Utility District Rancho Seco Nuclear Generating Station Post Office Box 15830, Mail Stop No. 291 Sacramento, California 95852-1830

SUBJECT:

RANCHO SECO NUCLEAR GENERATING STATION - IMPROVEMENTS IN MAINTENANCE AND TEST PROCEDURES FOR B&W PLANTS - GENERIC LETTER (GL) 83-28, ITEM 4.4 Generic Letter 83-28 Item 4.4, required that you confirm that safety-related maintenance and test procedures are applied to the diverse reactor trip feature provided by interrupting power to the control rods through silicon controlled rectifiers (SCRs). In addition, the test procedures should verify that the SCRs have degated and the SCRs should be included in the surveillance and test require-ment sections of the Technical Specifications. .The Technical Specification requirements for the SCRs are not included in this evaluation and are being handled as a separate licensing action.

We have reviewed your responses to Item 4.4 of GL 83-78 and found them acceptable. Our Safety Evaluation (SE) and our contractor's Technical Evaluation Report (TER) are enclosed for your information. This completes Item 4.4 of GL 83-28 for the Rancho Seco Nuclear Generating Station.

Sincerely, John F. Stolz, Director PWR Project Directorate #6 Division of PWR Licensing-B

Enclosures:

As stated cc w/ enclosures:

See next page-DISTRIBUTION ACRS-10 Gray File Docket File EJordan RWeller NRC PDR BGrimes NThompson L PDR JPartlow PBD#6 RIngram 8611070151 861104 FMiraglia- SMiner PDR ADOCK 05000312 E PDR OGC-MNBB 9604 GKalman Asw PBD-6 PBD PBD-6 SMiner; GKa an RWeller JS ff~

_10/3l/86 10 /86 10/7//86 10gi/86

Mr. John E. Ward Rancho Seco Nuclear Generating Sacramento Municipal Utility District Station cc:

Mr. David S. Kaplan, Secretary Sacramento County .

and General Counsel Board of Supervisors Sacramento Municipal _ Utility 827 7th Street, Room 424 District Sacramento, California 95814 6201 S Street P. O. Box 15830 Ms. Helen Hubbard Sacramento, California 95813 P. O. Box 63 Sunol, California 94586 Thomas A. Baxter, Esq.

Shaw, Pittman, Potts & Trowbridge 2300 N Street, N.W.

Washington, D.C. 20037 Mr. Ron Columbo Sacramento Municipal Utility District Rancho Seco Nuclear Generating Station 4440 Twin Cities Road Herald, California 95638-9799 Mr. Robert B. Borsum Babcock & Wilcox Nuclear Power Generation Division Suite 220, 7910 Woodmont Avenue Bethesda, Maryland 20814 Resident Inspector / Rancho Seco c/o U. S. N. R. C.-

14410 Twin Cities Road Herald, California 95638 Regional Administrator, Region V U.S. Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Director Energy Facilities Siting Division Energy Resources Conservation &

Development Commission 1516 - 9th Street Sacramento, California 95814 Mr. Joseph 0. Ward, Chief Radiological Health Branch -

State Department of Health Services 714 P Street, Office Building #8 Sacramento, California 95814

.