ML19323C224
| ML19323C224 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/22/1980 |
| From: | Jay Collins, Fasano A, Kalman G NRC - NRC THREE MILE ISLAND TASK FORCE |
| To: | |
| References | |
| PNO-TMI-80-027, PNO-TMI-80-27, NUDOCS 8005150165 | |
| Download: ML19323C224 (1) | |
Text
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Acril 22. 1980 FHCL]HINAkY NOTIf!CA!!DN Of CVEN1 UH UNUSUAL CONCURRLNCE -PNO-iM1-80-27 80 0515 0 /g Ihis prelir.;inary notification constitules LARLY notice of events of POS$1BLF safety ur puo i i c,i ntc'rdIt 7.,13n3 1,ca nce.
tnt information presentep ir. os ini tial'lTr c'ceived w1:nout 1
ver,1f1ca L1ori or evaluation and is basically alI thet is known ny NRC staff on tniej d a t e,._
Facility: Mett upolitan Edison Company
' Three Mile Island. Unit 2 Middletown, Pennsylvania Docket Number 50-320 Su b.i. ec t : TM1-2 AIRLOCK PURGE TN r"tEI'ARATION 10R REACIOR BUII.DINC ENTRY The licensee plans to begin purging the linit 2 personnel airlock at 8:00 a.m., on 4/?3/80 in preparation for the first cntry into the Unit 2 reaci.or building (RB). Based on previous airlock entries, it is estimated that less than 50 millicuries of kryption Eb will be released through the plant venLilation system during the airlock purge.
The first entry into the RB is scheduled for L:00 p.m., on Thursday, April 24. 1980. The entry team will be comprised of two licensee employees who will enter the RB for 20 u.in. iter.
to radiologically survey and photograph a li.aited portion ut the Rt' The data to be obtained during the entry is essential in assessing the course ut tuture decontaminal. ion a:W cleanup efforts.
The entry planning and preparations n2ve received detailed review by the imC statf.
The entry team members are expected to roccive a maximum total body expor.ure of 1 Rem.
The two persons entering the RB will wear special heavy protective clothing to reduce the radiaticri dose lo the si.in and tb minir in personnel contamination.
lhey will also wear self cnntained breathing apparatu'..
Entry will result in the release of 25 curies o' '3dic3 civa kryptor: gas when the entry ur leaves the RB and exits through the perr.onnel ei' b u.
Assuming PCor treteorogolical tunditions, the radioactive krypton release will
- '.ci-in a raaxi :am radiation dose in ran ir.dividual at the si te boundary of 0.7 milliran
>.6 - case end 0.008 millirem tcLal body dne Media interer.t is expected. The Cor::::onwealth of rennsylvnnia he:, been notified. A press release is planned by the licensee and NRC.
This preliminary notification is issued for information oni,, and the informalf un is curren-as of 3:30 p.m., 4/22/80.
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- 6. Kaliaan-590-395J, A. N. rasano 590-3960 J. T. Collins 590-3956 Dis tri but'.an :
(Facsimile Transmission Times Noted)
H st Bldg Chairman Ahearne Commissioner Bradford S. J. Chilk, SECY Cemnissioner Kennedy Cournissioner fiendric C. C. Kansnerer, CA Cemissioner Gilinsky K.RS (1-or Distribution)
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