ML19246A529
| ML19246A529 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 05/31/1979 |
| From: | Madsen G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Short T OMAHA PUBLIC POWER DISTRICT |
| References | |
| NUDOCS 7907030258 | |
| Download: ML19246A529 (1) | |
Text
bcc to DAC:ADM:
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REGION IV vTIC G-g 611 RYAN PLAZA DRIVE, SulTE 1000 d
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May 31, 1979 Docket tio. 50-285 Omaha Public Power District ATTil:
T. E. Short, Assistant General Manager 1623 Harney Street Omaha,flebraska 68102 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 infonnation.
Sincerely,
$NoW G. L. !!adsen, Chief Reactor Operations and fluclear Support Branch
Enclosure:
1.
Pf40-79-67AQ cc w/ enclosures:
R. L. Andrews, Manager Fort Calhoun Station P. O. Box 98 Fort Calhoun,flebraska 68102 275 10S 7907 08025g
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IMMEDIATE PRELIMINARY NOTIFICATION May 29, 1979 PRELIMINARY NOTIFICATION OF AN EVENT OR UNUSUAL OCCURRENCE -- PNO-79-67AQ This prelimina ry notification orq2jdes ore 2tod information o f oo fety or public
_i nte rc o t oienificance.
Facility: Three Mile Island Unit 2 Middletove, Pennsylvania (DN 50-320)
Subject:
NUCLEAR INCIDENT AT T101EE MILE ISLAND Operational:
1.
The average coolant temperature is 158 degrees F and being maintained 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 ceasure, due to increasiug 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 modified rad waste treatment system (EPICOR).
The testing is scheduled for completion 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 23 was shown to be due to changing levels of naturally occurring Ra-222 caused by a weather front ecving through the area.
Airborne releases have been below Technical Specification limits.
During the period May 21-28, approxi.sately 35 air samples were collected by the NRC and all were less than HDA. Vegeta-tion and milk samples collected during this period also showed no activity above MDA. EPA air, water and milk samples collected during this past week up to May 24 showed no detectable activity from TMI.
The State of New Jersey reported that DUPLICATE DOCUMENT milk samples they analyzed between Ma samples included milk from eminfir*3 %
Entire document previously entered and supplied to New Jersey consumers, into system under:
New Jersey farms.
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CON No. of pages:
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