ML19246A497
| ML19246A497 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 06/19/1979 |
| From: | Seidle W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Gary R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| References | |
| NUDOCS 7907030215 | |
| Download: ML19246A497 (1) | |
Text
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G11 RY AN PLAZA DRIVE,SulTE 1000 U
ARLINGTON, TEX AS 76012 59 * *..,o June 19, 1979 Docket No. 50-445 50-446 Texas Utilities Generating Company ATTN:
Mr. R. J. Gary. Executive Vice President and General Manager 2001 Bryan Tower Dallas, Texas 75201 Gentlemen:
Enclosed is supplement AT to Preliminary Notification PNO-79-67, " Nuclear Incident at Three Mile Island," dated June 18, 1979.
Should you have any questions regarding this review, please contact this office.
Sincerely, l
W.C.SeidlhChief Reactor Construction and Engineering Support Branch
Enclosure:
PNO-79-67AT 273 275 7907 0302/f
IMMEDIATE PRELIMINARY NOTIFICATION June 13, 1979 PRELIMINARY EDTIFICATION OF AN EVENT OR UNUSUAL OCCURRENCE -- PNU-79-67AT This preliminat,r notification provides updated information of safety or public interest sis.nificance.
Facility: Three Mile Island Unit 2 Hiddletown, Pennsylvania (DN-50-320)
Subiect:
NUCLEAR INCIDENT AT THREE MILE ISLuiD Operatioc.al:
1.
Th? averabe coolant temperature is 155 degrees F and the highest incare thern couple temperature reading is 273 degrees 7.
Core cooling is being e.siotained by natural circulation.
Pressure is about 350 psi with the prassurizer in solid operation.
Steam is being admitted to the :cain con-dens-r through the turbine bypara valve from the A Steam Generator.
2.
Reactor building vater level is being ceasured daily, and is ccv 7.0 1 0.5 feet above~ floor level.
This lower than previously reported level is due to refine =ent of the measurement technique, and does not reflect an acutal level decrease.
3.
Preoperational testin2 for the Spent Fuel Pool Tank Faro, Once-Through Steaa Generator "B" Long-Term Coaling System, tne modified radwaste treatment system (EPICOR), and the pressure / volume control systen pro-grossed slowly during the past week due to various operational / procurement problems encountered. The testing may be completed within the nert two weekB.
Ecvironitental Status:
Environnestal radiation levels remain consistent with natural background levels.
Airborne releases have been below Technical Specification limits.
Froa Juue 11-17, 42 air samples, 2 milk sampics, 4 vegetation semples and 2 soil sr.ples were collected by the h7.C.
All analytical results were less than MDA. IPA air, water and milk samples collected during th week (up to June 15) showed uo detectsble activity frco TMI.
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