ML19317F924

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AO-75-05:on 750113,radioactivity Detected in Component Cooling Sys.On 750217,samples Detected Fission Gases & Activation Products,Indicating Possible Breach of Boundary Containing Reactor Coolant.Investigation Continuing
ML19317F924
Person / Time
Site: Rancho Seco
Issue date: 03/27/1975
From: Colombo R
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML19317F823 List:
References
NUDOCS 8002210641
Download: ML19317F924 (1)


Text

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LICENSEE EV$NT REPORT CONTROL GLOL l

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l (r. EASE PRINT ALL REoulRED INFORMATION) 1 8-ME UCE*fSE NUMBER E

PE lC l A lR l S l Sl 1l l 0l 0l-l 0 l 0l 0l 0l 0l-l0 l 0 l l 4 l 1 l1l1l 1l l0l1l 8G 14 15 25 26 30 31 32 NN CATEcoRY T

cocxEt NUMBER EVENT DATE REPORT CATE O 1 CONT l Ml Il y W

l0 }5 l0 l-l 0 l 3 l 1l 2l l 0l2 l1 l 9 l 7 l 5 l l 0l 3l 2l7 l 7 l 5 l 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION g lOn January 13, 1975 radioactivity was detected in the component cooling system.

The l

7 89 Q l activity was mainly tritium but no traces of gross betas fission gas or activation 80.ll 7 89 l products were present. The Februarfl7 samples detected' fission gases and activation l

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7 89 E l nroduct Indicatine a nossible brench of n'boundarv containine reactor conlant.

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l Based on'the primary system activity and component cooling system volume, the ***

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7 89 EIfE SoEE c0MPONENT COCE AC R

VOLATON E 1531 B I I F l lZ l Z l Zl ZlZ lZ l lZl l Z(9l 9l 9l lN l 1

7 89 10 11 12 17 43 44 47 48 CAUSE DESCA'PTION

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co gg l At the time of this report, an intensive investigation is continuing to determine the l.

h l Origin of the radioactivity in the component cooling system.

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80' O8 I;

rACuTY 80 uffwoo es a asua

= MJWtd CTHER STATUS 0:5COVERY OfSCoVERY DESC3pTCN d

l 0l9 l2 l l NA l

lC l l Initial Radiochemistry Startup Testi$g 7 8 9

10 12 13 44 45 46 80 ACTMTY CONTENT RELEASED OF AftEASE AMOUNT OF ACTMTV E

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LOCATON OF AELEASE 8

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1C 11 44 45 PEPSONNEL EXPOSUAES 80 NUMBER TYPE DESCRiPTON IU. l 0l0 l 0 l

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NA 1

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  • 2 13 60 PERSONNEL INJURIES NUMBER DESCRPTON Q l 0l 0j 0 l l NA

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l 7 89 11 12 80 OFFSITE CONSECUENCES DE l NA l1 7 89 LOSS OR DAMAGE TO FAC:LITY TYPE DESCAsPTON d

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-l 7 F3 9 10 80 PUBUCITY Q l Sacramento Bee and Union notified February 20, 1975 1

l d 7 89 eo 4 ADDITIONAL FACTORS a

] l*** EVENT DESCRIPTION (continued) calculated leak rate is 2 to 4 gallons per day. (AO-75 5);

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80 gl 8002210 69/

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og 7 Ronald 11. Colombo N)AC NAME; PHONE:

GPO est.esy

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