ML19246A482
| ML19246A482 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 06/11/1979 |
| From: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Goodwin C PORTLAND GENERAL ELECTRIC CO. |
| References | |
| NUDOCS 7907030193 | |
| Download: ML19246A482 (1) | |
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o, UNITED STATES NUCLE AR REGULATORY COMMISSICN
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REGION V 0, ',
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SUITE 202, WALNUT CREEK PLAZA
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WALNUT CR EE K, CALIFORNI A 94596 June 11,1979
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Docket No. 50-344 Portland General Electric Company 121 S. W. Salmon Street Portland, Oregon 97204 Attention: Mr. Charles Goodwin Assistant Vice President Gentlemen:
In accordance with our letter dated April 1,1979 transmitting Bulletin 79-05, we are enclosing Preliminary Notification 79-67AS.
Sincerely, a.
lH. Engelken Q'ff%
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Enclosure:
PNO-79-67AS cc w/ enclosure:
B. Withers, PGE F. Gaidos, PGE 273 246 7907030/93
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IMMEDIATE PRELIMINARY NOTIFICATION June 11, 1979 4'
PRELIMINARY NOTIFICATION OF AN EVENT OR UNUSUAL OCCURRENCE -- PNO-79-67AS This preliminary notification provides updated information of safety or public
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interes t significance.
s-Facility: Three Mile Island Unit 2 Middletown, Pennsylvania (DN-50-320)
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Subject:
NUCLEAR INCIDENT AT THREE MILE ISLAND Operational:
The average coolant temperature is 157 degrees F.
The highest incore I.
thermocouple temperature reading is 280 degrees F.
Core cooling is being maintained by natural circulation.
Pressure is about 340 psi with the pressurizer in solid operation.
Steam is being admitteo to tSe main con-denser through the turbine bypass valve frc,m the A Steam Generator.
2.
Vater level in the reactor building is being measured daily, and is 7.3 feet above floor level tnis morning.
3.
Preoperational testing for the Spent Fuel Pool Tank Farm, Once-Through
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Steam Generator "B" Long-Term Cooling System, the modified rad waste treatment system (EPICOR), and the pressure / volume control system should be coupleted by June 15.
~ Environmental Status Environmental radiation levels remain consistent with natural background levels.
Airborne releases have been below Technical Specification limits. From June 5 -
=.- 3y. June 10, about 37 air samples were collected by the NRC.
All were less than MDA.
b -M Q..e Vegetation, soil and milk samples collected last week also showed no activity M 7:;: fabove MDA. EPA air, water and milk samples collected during the vaek (up to June 8) showed no detectable activity from TMI.
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CONTLNUED
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DUPLICATE DOCUMENT 273 247
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