ML19308D060
| ML19308D060 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 12/19/1979 |
| From: | Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| IEB-79-13, NUDOCS 8002260763 | |
| Download: ML19308D060 (1) | |
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3SMUD SACRAMENTO MUNICIPAL UTILITY DISTRICT O 6201 S Street. Box 15830, Sacramento, California 95813; (916) 452-3211 1
December 19, 1979
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Mr.
R. II. Engelken, Director 9
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Region V Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission fl k
gi 1990 North California Boulevard Walnut Creek Plaza, Suite 202 Walnut Creek, California 94396 Re:
Docket No. 50-312 Rancho Seco Nuclear Generating Station, 17 nit No. 1 I.E.Bulletin 79-13, Additional Information
Dear Mr. Engelken:
IE Bulletin No. 79-13 requested a review of the adequacy of our operat-Ing and emergency procedures to recognize and respond to a feedwater line break accident and the methods and sensitivity of detection of feedwater leaks in the containment.
Our initial response, dated July 13, 1979, discussed the adequacy of our procedures as well as the methods and sensitivity of detection of feedwater leaks in containment. A discussion with the onsite resident inspector indicated that your of fice had some concerns that our eter. ancy procedure did not specifi-cally address feedwater line breaks.
To address these concerns, another review of our procedure was performed.
Although, as originally stated, the procedure was sufficient to recognize and control this type transient, some clarification could prove beneficial. As a result, a revision to the procedure was in i. t ia t e d. The revision changed the procedure title to include feed line rupture and clarified specific symptoms which would indicate a feed line rupture versus a steam line rupture.
If you require additional information regarding this bulletin, please contact R. W. Colombo at Rancho Seco.
Respectfully,
.ht d - t J. J. Mattimoe Assistant General Manager and Chief Engineer JJM:lill: Jim G' (, g ". o 0 0 }
A id ELECTRIC SYSTEM S E R VIN G MORE THAN 600,000 IN THE HEART OF C A L I F O Rd' I 7
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