ML19221A740
| ML19221A740 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 06/13/1979 |
| From: | Madsen G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Millen C PUBLIC SERVICE CO. OF COLORADO |
| References | |
| NUDOCS 7907030183 | |
| Download: ML19221A740 (1) | |
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AR LINGTOff, TE X AS 76012 June 13, 1979 Docket No. 50-267 Public Service Company of Colorado ATTH: Mr. C. K. Millen Senior Vice President P. O. Box 840 Denver, Colorado 80201 Gentlemen:
In acc.ordance with Mr. Seyfrit's transmittal letter of Arvil 9,1979, the enclosed Preliminary Notification (s) relating to the fluclear Incident at Three Mile Island is foniarded for your information.
Sincerely, YNaM' G. L. Madsen, Chief Reactor Operations and Nuclaar Support Branch
Enclosure:
1.
Pfl0-79-67AS cc w/ enclosure:
D. U. Warembourg, fluclear Production Manager Fort St. Vrain Nuclear Station P. O. Box 368 Platteville, Colorado 80651 L. Brey, Quality Assurance (Same Address) 273 235 7907 030163
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TMMenrATE Pte,LIMINAxy riorir1 CATION June 11, 1979 PRELIMINARY NOTIFICATION OF AN EVES"r OR UNUSUAL OCCURRENCE -- PNO-79-67AS This preliminary notification provides updated information of safety or public interest sienificance.
Facility:
Three Mile Island Unit 2 Middletown, Pennsylvania (DN-50-320) i.
Subject:
NUCIIAR INCIEENT AT THPIE IIILE ISLAND Operational:
1.
The average coolant temperature is 157 degrees F.
The highest incore themocouple temperature reading is 280 degrees F.
Core cooling is being maintained by natural circulation.
Pressure is about 340 psi with the pressurizer in solid operatica.
Steac is being admitted to the main con-denser through the turbine bypass valve from the A Sticam Generator.
2.
Water level in the reactor building is being measured daily, and is 7.3 feet above floor level this morning.
3.
Preoperational testing for the Spent Fuel Pool Tank Farm, Once-Through Stea:a Generator "B" Long-Term Cooling System, the modified rad waste treatment system (EPICOR), and the pressure / volume control system should be completed by June 15.
Envircraaental Status:
Environmental radiation levels remain consistent with natural background '.evels.
Airborne releases have been below Technical Specification limits.
From June 5 -
June 10, about -37 air samples were collected by the NRC.
All werc less than MDA.
Vegetation, soil and milk samples collected last week also showed no activity above MDA.
EPA air, water and ciilk sacples collected during the week (up to June 8) showed no detectable activity from TMI.
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