ML19246B372
| ML19246B372 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 06/27/1979 |
| From: | Madsen G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Millen C PUBLIC SERVICE CO. OF COLORADO |
| References | |
| NUDOCS 7907130330 | |
| Download: ML19246B372 (1) | |
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NUCLEAR REGULATOHY COMMISSION LPDR g yp.7, c g
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Docket No. 50-267 Public Service Company Jf Colorado ATTN: !!r. C. K. Millen Senior Vice President P. O. Box 840 Denver, Colorado 80201 Gentlemen:
In accordance with Mr. Seyfrit's transmittal letter of April 9,1979, the enclosed Preliminary Notification (s) relating to the Nuclear Incident at Three Mile Island is fonvarded for jour information.
Sincerely, m
YNa G. L. Madsen, Chief Reactor Operations and Nuclear Support Branch
Enclosure:
1.
PNO-79-67AU cc w/ enclosure:
D. W ilarembourg, Nuclear Production flanager Fort St. Vrain Nuclear Station P. O. Box 368 Platteville, Colorado 80651 L. Brey, Quality Assurance (Same Address) 359 hk6 525
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7907130330
IF.dDIATE PRELIMINARY NOTIFICATION June 26, 1979 PRELIMINARY NOTIFICATION OT AN EVEST OR UNUSUAL OCCURRENCE -- PNO-79-67AU This preliminary notification provides updated infor.tation of safety or public interest significance.
Facility: Three Mile Island Unit 2 Middletown, Pennsylvania (DN-50-320)
Subject:
UPDATED STATUS REPORT Operational:
1.
Average coolant temperature is 154 degrees F.
The highest incore thermocouple temperature indication is 267 degrees F.
Core ficw is being provided by natural circulation.
Core cooling is being maintained by steaming the "A" Steam Generator to the main condenser on the bypass valve. Pri=ary pressure is about 325 psi. The licensee plans to slowly decrease pressure to about 250 psi.
2.
Daily measurecents of reactor building water level still indicate 7.0 t 0.5 feet above floo,g level.
3.
The Pressure-Volume Control system is nearing completien.
Completica and testing of systems continues to progress slowly, with procurecent prchlems and system chan2es being significant contributors.
9 zZnvirocrental Status:
Environnental radiition levels remain consistent with natural background levels. Airborne releases have been below Technical Specification limits.
From June 18-24, 35 air ss=ples, 2 nilk sacples, 4 vegetation saeples and 2 soll sacples were collected by the NRC. All analytical results were less than mininum datectable activity (MDA). EPA air, water and milk samples collected during the week (up to June 22) shewed co detectable activity from TMI.
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Continued PEO-79-67AU Page 2 June 26,1979
Contact:
RCPaulus, IE x27246 DThompson, IE x23487 Distribution:
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