ML19224A830
| ML19224A830 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 05/29/1979 |
| From: | Paulus R, Thompson D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| PNO-79-067AQ, PNO-79-67AQ, NUDOCS 7906050061 | |
| Download: ML19224A830 (2) | |
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l, IMMEDIATE
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- 1 PRELl?INARY NOTIFICATION i
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L May h9, 1979 g-PRELIMINARY N7FIFICATION OF AN EVENT OR UNUSUAL OCCURRENCE -- PNO-79-67LQ h
5 This preliminary notification provian updated information of safety or oublic interest signLficance.
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3 Facility: ' 'ThI ee Mile Island Unit 2
)fi dietown, Pennsylvania (I:N 50 ^,20) l 3
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Subject:
NUl:I. EAR INCIDF51' Al' T.BREE MILE IST.AND
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a Operational:
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1.
Theiaver ge coolant temperature is 158 degrees F and being maintained around t at temperature by natural circulation.
Pressure is about 450 psi with the pressurizer in solid operation.
Steam is being admitted to the main een enser through the turbine bypass valve from the A Steam Generator.
Thes. highhst incore temperature reading is 291 F.
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2.
Water leyel in the reactor building is being measured daily! and was 6.8 fe st abo e floor level this morning.
The lowest decay heat. system motor-operated valve (DH-V2) in the reactor building was opencd o;n May 25 as a precaugi[ nary measure, due to increasing water level.
Secondary sources of '. water; into the reactor building have since been isolated, including the fan.v colers water supply,
.o reduce water in-leakage.
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3.
Preoperalional testing is in progress for the Spent Fuel Pool Tank Farm, g
Once-Thrdugh Steam Generator "B" Long-Term Cooling System, a n d tJ-modified Irad waste treatment system (EPICCR'.
The testing is sr aled for co=pfetion by June 1.
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EnvironmentalrStatus Invirecaental radiation levels continue to be consistent with natural background ley ls.
A sJig'at change in background level on May 24 and 25 was uhown to be:d weather front.y to changing levels of oaturally occurrine: Rn-222 caused by a oving through the area.
Airborne release.s hav,e beca below Technical Spe fication limits.
During the period May 21-28, approximately 35 a4.r sample were collected by the NRC and all were less than MDA.
Vegeta-tion and milk amples collected during this period also showed no activity above MDA. iEhair, water and milk samples collected during this past week up to May 24 showed no detectable a tivity from TMI.
!. t The State of New Jersey reported that they detected no I-131 in any of the 8
milk samples they analyzed between March 29, 1979 and April 24, 1979.
Thes:
samples included milk from counties within 50 miles of Harrisburg, Pennsyl nia and supplied th New Jersey consumers, the Salem, New Jersey area, and northern New Jersey farms.
CONTIATED 168 351 a
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a Continued,
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Page 2
,May 29, 1979 PNO-79-67AQ l
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i Analyses ve been completed on samples of :nilk, water, soll, feed and grass collecte at the Claire Hoover farm on May 20, 1979 (Reference PNO 79-67AP).
No reactar related radionuclides were detected by 31ther the EPA or NRC.
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Contact:
'RCPaulus, IE x27246 DThomp
, IE x28487 ENh
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Distribution:
Transmitted H St.a. s a Chairnan Hendrie Comissioner Bradford S. J: Chilk, SECT Cocnisaloner Kennedy Comissioner Ahearne C. C. Kamerer, CA Commissioner Gilinsky ACRS (For Distribution)
Transmitted: MNBB5'.F[
P. Bldg / MOO J. G. Davis, T 9 fi50 IE L. V. Gossick, EDO H. R. Deriton, NRR Region I /d H. L. Ornstein, EDO R. C. DeYoung, NRR Region II /g. W F,fd J. J. Fouchard, PA R. J. Mattson, NRR Region III /04r 9 c".JO N. M. Haller, MPA V. Stello, NRR Reylon IV R. G. Ryan,.OSP R. S. Boyd, Jh R Region V H. K. Shapar,. ELD SS Bldg s/*55 (M3)
W. J. Dircks, NMSS J. J. Cumings, OIA S. Levine, RES R. Minogue, SD IE (TMI} Site-7,'J o 80 (Provide copy to STATE)
C. Abraham, PA (Middletown - TMI-Information Center)
White House; ':, tuation Room FDAA (Provide copies to the Administrator and the Operations Center)
EPA DCE/EOC' rEMA BRP (State of PA)
DCPA HEW Handcarry (FAA)
IMMEDIATE PRELIMINARY NOTIFICATION g
a D
168 352
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