ML20126C613

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PNO-TMI-80-008A:on 800310,licensee Intends to Commence Preparations to Enter Containment Personnel Airlock 2. Airlock Atmosphere Radioactivity Has Been Analyzed & Will Be Purged.Containment Integrity Will Be Maintained
ML20126C613
Person / Time
Site: Crane Constellation icon.png
Issue date: 03/05/1980
From: Jay Collins, Conte R, Fasano A
NRC - NRC THREE MILE ISLAND TASK FORCE
To:
References
PNO-TMI-80-008A, PNO-TMI-80-8A, NUDOCS 8004070103
Download: ML20126C613 (1)


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PRf1.iHIRARY NOT!F? CATION

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liarch 5,1980 PRTI D'It AP.Y ISTITICAlf D-! O' FYFili OH tiNUF.i;.L Otr.U;.RFNG-Fi 0 1MJ 80-08A This prelirr.ir.ary notif ic.ation cor.st i tutes FAR' Y nitice of. events of POSSIBLF safety or publ.it i'ntc ru t. s i cnifi cance.

The inlornt

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i on a r.d i s b. s : cc l h'.i on cres !a nted i s a. 5_ _ _initia lly r.eceiveo withnot veri fication or evaluet.

all tr.at. i_s known by IGC stoff on tnis' 2s te.

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l ocility: Metropolitan Edisem Ccep:ny i

Three Mile is Iand, thi-2 l

Middletevn, Pennsylvania OccLet Nzdier 50-320 Sub,j ect: CONTAI!OEtiT PE250MNE. Alil CCX F.fr?.Y ',UPD*TF.)

t On Monday, Ma rch 10, H30, the licensea inw.ds tn co moce preparations for entering TMI-2 Containraent Persor.nel Airlock 5o. 2 he rurp:se of this entry is to conduct redlological surveys on the ate:ospheric sid of t}:e innte d or and to conduct a visual survey of the con tainment interior thrc' yh tre i'acr door port.

The i%rsomiel Ai r'.cc'r. 'le. 2 dtr.c.rprere hcs been anelyzed for radioactivity.

T h e. sampl e 4

ana ly:ed en ilc.ucry 31, 1930. Ir. izates th:t tre rcdiositivity is approximately 2.2 x 10-3 v',i/cc Kr/;::n-35 witn nc datnt.atie > dine or Particulate concentrations.

These results are euentially b s.a e as r.he sarple 3r.51j:ed on August 8,1979.

The total trypicn-8' cor. ent c f Ibc ai cl:c < iclurc I: be p;rgd his calculated to be apprcx hrately 50 mci.

Those events will be con r lle in icc:rdi cc d th precedare approved by the GC/,TMI 7

Technical Sup; art itaff ard si 1 t s v.ni :c-a: :y tra NRC/TMi staff.

The proceduro requires en additbrai sar,il e to t,+ r.aren ;;cn COTrence.'ent of the airlock purge.

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tha tim an undned assessr.+r Of +/Tdcte: to,il reieare cortent will be computed.

Tne airlock pu cing st.0uld have i r.2glible cifet c1 -he envi ronment.

Preparations for tnis entry s.c tl d Ic st cyprcxi c :e:y i dcy! in crP :n purge the airlock atTast.here to l as.s thar. P iri.rn-Tar-f u it's C:.cer rc:ic nr (Mi'.) in Accordance with 10 CFR Part 20 linits.

Tnis ti,= period s recestz y dua :c :qe ha pvr;;e rate of the sarple p.;r.p

{approxinnely ; c?).

.!t. ing te.e sur.+y sne irrer door will remain isolated, r3intaining c ontaiorer.

i r r.e y r ' :/.

i h Ji:.1 c.taired,i 1 ce e:.e o assess conditions inside the J

centainn.n: in pre.'ere'.i or. ! Or 'l'n:ai nnent -try Ic:cr th;s year.

1 The licensee cues no t plen Le 'ssue a press rebss.

Tac plans to hold a new's conference at 3:30 P.M. today at :he Midd'eto,n Office.

The Cocuonwealth of Pant.ylvar.ia ns natifiec.

Thh preliminery rotificnion is issued for in'ormation only and tho inforcation is current as of 1100, F. arch 5,1!41 A.N.h:w h"V

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it. 1.'p,ca tes- >MC-3 H C.

Contact:

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Fesen S0-3950 J. T. Collins 590-3955 Prer.a re: by Frt Section Cr.iaf Ext Deputy Director Ext

-8004070103 l

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