ML19241B267
| ML19241B267 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 07/03/1979 |
| From: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| References | |
| NUDOCS 7907130389 | |
| Download: ML19241B267 (1) | |
Text
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1990 N. CAL!FORNIA EJOULEVARD
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SUlTE 202, WALNUT CRE EK PLAZ A WALNUT CREEK, CAllFORNI A 94596 July 3,1979 Docket flo. 50-312 Sacramento Municipal Utility District P. O. Box 15830 Sacramento, California 95813 Attention:
Mr. John J. Mattimoe Assistant General Manager Gentlemen:
In accordance with our letter dated April 1,1979 transmitting Bulletin 79-05, we are enclosing Preliminary ilotification 79-67AV.
Sincerely,
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R. H. Engelken Director
Enclosure:
Pi10-79-67.W cc w/ enclosure:
R. J. Rodriguez, SMUD L. G. Schwieger, SMUD
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I;ii%DIATE PRELI' IMRY f10TIFICATION A
w July 2,1979 PRELIMIMARY !4TIFICATICH OF EVENT CA Uh050AL OCCURRENCE -- M+79-67-AV This n,w11minary notification constitutas su:: mary infomation of bn event of sahty or pihlic intarast ston1Nanc^,.
it;< inforutfon nessantad 11 a age.sary n/ infsrution as of f:00 a.h. on dor 11,_1979.
Fxility: These Mile Island Unit ?
tiiddletown, Pacnayhani;r I,0N 50-320)
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GCAfED STATUS REPORT Cyentional_:
1.
Average coolant ta~oeraturs is 162 degrees F.
Thi hichast incors ther::n-cocols ta werature in<iication is 270 d1grees F.
Core flow is being pro-vided by natural circulation.
Cor? CC01100 is b.)ing adintaingd by Sta. ming tha "A" SW Generator to the main condensar en the bypass valv*, The increasha in tw4ratures ov+r the past t;3eX ars dw to delibstata reduction of the opening of thw bypass valve in order to increase the thmal driviej hssd for natural circulation f1w.
Primary pressure is chout 325 psi.
The licensee still plans to slowly decraasw pressure to about 250 psi.
2 Daily rauuraaents of reactor build!ng water level still indicata 7.0 0.5 Taet above floor laval.
3.
The Prsssure/Voltwe Control system continues to progress toward cc=9 stion 1
slowly.
Envirormental Status:
Enviror#, ental radiation levels resain consistant with natural Dackground levels.
Airborce r alauas remin well balow Technical Sp+cification limits.
Frca June 25-July 1,1973,19 air saeples, 8 ni1X carples, 4 vegetatico s+gl?S and 2 soil samoles were collectad by the NRC.
All enalytical results tests lan than IBA.
EPA air, water, and allk comiss collected curing the week (up to June 29) sbmd no detectable activity frem T'AI.
N Continued e
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July 2,1979 4 Pl c.
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Contact:
RC?aulus, IE x27246 DT son, IE x26487 Dht.ricution:
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fn41run Hendria Cenaissioner Bradford S. J. Chilk, SICY C m issiorer Kennedy CcMissioner Ahearna C. C.
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J. G, Davis 4
(For Diatribution)
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C. ^.brahu, PA
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