05000312/LER-1981-040, Forwards LER 81-040/04T-0.Detailed Event Analysis Submitted

Forwards LER 81-040/04T-0.Detailed Event Analysis Submitted

ML20031A505
Person / Time
Site:	Rancho Seco
Issue date:	09/11/1981
From:	Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20031A506	List: 05000312/LER-1981-040, Forwards LER 81-040/04T-0.Detailed Event Analysis Submitted 05000312/LER-1981-040-04, /04T-0:on 810831,review of Water Quality Records Revealed That Limit on Total Dissolved Solids Exceeded on 810709.Caused by Operator Inattention to Integrated Flow Rate/Dissolved Solids Indication.Operator Will Review Rept
References
NUDOCS 8109230584
Download: ML20031A505 (1)

LER-1981-040, Forwards LER 81-040/04T-0.Detailed Event Analysis Submitted

Event date:
Report date:
3121981040R00 - NRC Website

text

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$SMUD SACRAMENTO MUNICIPAL UTILITY DISTRICT O 6201 S Street, Box 15830, Sacramento, California 95813; (916) 45M211 September 11, 1981

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R H ENGELKEN, DIRECTOR j

REGION V 0FFICE OF INSPECTION 6 ENFORCEMENT Ej (r g

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VALNUT CREEK PLAZA SUlTE-202 WALNUT CREEK CA 94596 GTrie ?

OPERAT'NG LICENSE DPR-54 DOCKE1 No. 50-312 REPORTABLE OCCURRENCE 81-40 in accordance with Technical Specification Appendix B, Sect on 2.3 i

and Section 5.6.2.c, the Sacramento Municipal Utility Dist rict hereby submi ts a ten-day report of Reportable Occurrence 81-40.

On August 31, 1981, during an end-of-month review of plant water quality records it was learned that the total dissolved solid limit of 34,000 pounds had been exceeded (35,200 pounds of dissolved solids had been discharged). There are high conductivity alarms (indicating high dissolved solids) on the plant effluent inlet and outlet. They did not alarm because the concentration of dissolved solids was within allowable limits. There is also an integrated flow / dissolved solids indication on the plant effljent outlet, but it is not alarmed.

The District is looking into the possibility of installing an alarm on the integrated flow indication. The operators will review this report to prevent any recurrence of this event.

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The plant operated at full power, unaf fected by this event.

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- q jJohn J. Mattimoe Assistant General Manager S'

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and Chief Engineer

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ISE Washington (10)

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MIPC (3) co EPRI-NSAC 8109230504 810911 PDR ADOCK 05000312 S

PDR A i1 ELECTRIC SYSTLM SERVtNG MORE THAN 600,000 IN THE HEART OF C Ali f 0 R N I A