ML19246A528

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Forwards PNO-79-67AQ, Nuclear Incident at Tmi
ML19246A528
Person / Time
Site: Arkansas Nuclear  Entergy icon.png
Issue date: 05/31/1979
From: Madsen G
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To: Cavanaugh W
ARKANSAS POWER & LIGHT CO.
References
NUDOCS 7907030256
Download: ML19246A528 (1)


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May 31, 1979 Docket flo. 50-313 50-368 Arkansas Power and Light Company ATTN: Mr. Uilliam Cavanaugh III Vice President of Generation and Construction P. O. Box 551 Little Rock, Arkansas 72203 Gentlemen:

In accordance with Mr. Seyfrit's transmittal letter of April 9,1979, the enclosed Preliminary flotification(s) relating to the fluclear Incident at Three Mile Island is fonvarded for your information.

Sincerely,

$NdW G. L. Madsen, Chief Reactor Operations and fluclear Support Branch

Enclosure:

1.

PNO-79-67AQ cc w/ enclosures:

Arkansas iluclear One ATTil:

J. P. O'Hanlon, Manager P. O. Box 608 Russellville, Arkansas 72801 L. Alexander, QC Supervisor (Same Address) 275 l99 7 907 030.2f(,

a D.?!EDI ATE PRELIMINARY NOTIFICATION May 29, 1979 PRELIMINARY NOTIFICATION OF AN EVENT OR UNUSUAL OCCURRENCE -- PNO-79-67AQ This prelimijiary notification nenvid-2 updatud information of oarety or publie

_i n te rc u t nignificance.

F_a_cility: Three Mile Island Unit 2 Middletown, Pennsylvania (DN 50-320)

Subject:

NUCLEAR INCIDENT AT THREE MILE ISIAND Operstional:

1.

The average coolant temperature is 158 degrees F and being naintained around that temperature by natural circulation.

Pressure is about 450 psi with the pressurizer in solid operation.

Steam is being admitted to the main condenser through the turbine bypass valve from the A Steam Generator.

The highest incore temperature reading is 291"F.

2.

Water level in the reactor building is being measured daily, and was 6.8 feet above floor level this morning.

The lowest decay heat system motor-operated valve (DH-V2) in the reactor building was opened on May 25 as a precautionary =casure, due te increasing water level.

Secondary sources of water into the reactor building have since been isolated, including the fan coolers water supply, to reduce water in-leakage.

3.

Preoperational testing is in progress for the Spent Fuel Pool Tank Farm, Once-Through Steam Generator "B" Long-Term Cooling System, and the c:odified rad waste treatment system (EPICOR).

The testing is scheduled for coc:pletion by June 1.

Environmental Status Environmental radiation levels continue to te consistent with natural background levels.

A slight change in background level on May 24 and 25 was shown to be due to changing levels of naturally occurring Rn-222 caused by a weather front moving through the area.

Airborne releases have been below Technical Specification liciits.

During the period May 21-28, approximately 35 air samples were collected by the NRC and all were less than MDA. Vegeta-tion and milk samples collected during this period also showed no activity above MDA.

EPA air, water and milk samples collected daring this past week up to May 24 showed no detectable activity from TMI.

The State of New Jersey reported that they d-=

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milk :.acples they analyzed between March 29, DUPLICATE D bMbN'N f

samples included c: ilk from enimries wi thin 5

and supplied to New Jersey consumers, the Sa Entire document previously entered New Jersey farms.

into system under:

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No. of pages:

s Continued May 29, 1979 Page 2 PNO-79-67AQ Analyses have been completed on samples of milk, water, soil, feed and grass collected at the Claire Hoover farm on May 20, 1979 (Reference PNO-79-67AP).

No reactor related radionuclides were detected by either the EPA or NRC.

Contact:

RCPaulus, IE x27246 DTh y

, IE x28487 Distribution:

Transmitted H St Chairman Hendrie Cou:missioner Bradford S. J. Chilk, SECY Cor:xnion.oner Kennedy Com Lssioner Anearne C.

C.

Kacuerer, CA Comissioner Gilinsky ACRS (For Distribtttion)

Transmitted: MNBB6.6[

P. Bldg /DlBO J. G. Davis, f9 IE L. V. Cossick, EDO H. R. Denton, NRR Region I /d,'

50 H. L. Ornstein, EDO R. C. DeYoung, NRR Region II fff W J. J. Fouchard, PA R. J. Mattson, NRR Region III /04/9 30 N. M. Raller, MPA V. Stello NRR Region IV _

R. G. Ryan, OSP R. S. Ecyd, Region V to i fS~ f JD g

H. K. Shapar, ELD SS Bldg */.'.

(MAIL) g W. J. Dircks, NMSS J. J. Cumnings, CIA S. Levine, RES R. Minogue, SD IE (TMI) Site M O (Provide copy to STATE)

C. Abraham, PA (Middletown - TMI-Information Center)

(N White House Situation Room / ~)/ / f f/ D f

FDAA (Provide copies to the Administrator and the Operations Center)

EPA DOE /E0C rma BRP (5 tate of PA)

DCPA HEW Handcarry (FAA)

ITIEDIATE PRELIMINARY NOTIFICATION

2 W 10 2.

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