ML19246A481
| ML19246A481 | |
| Person / Time | |
|---|---|
| Site: | Humboldt Bay, Diablo Canyon |
| Issue date: | 06/13/1979 |
| From: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Crane P PACIFIC GAS & ELECTRIC CO. |
| References | |
| NUDOCS 7907030191 | |
| Download: ML19246A481 (1) | |
Text
AR REGO
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V ' "n NUCLEAR REGULATORY COMMISSION 5.[kg)j.,, c 3
REGION V o, fi/ l.jN 1990 N. CALIFORNI A BOULEVARD SUITE 202, WALNUT CREEK PLAZ A
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WALNUT CREEK, CAllFORNI A 94596 June 11, 1979 Docket flos. 50-133 50-275 50-323 Pacific Gas and Electric Company 77 Beale Street San Francisco, California 94106 Attention: fir. Philip A. Crane, Jr.
Assistant General Counsel Gentlemen:
In accordance with our letter dated April 1,1979 transmitting Bulletin 79-05, we are enclosing Preliminary 'lotification 79-67AS.
Sincerely,
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Enclosure:
Pt;0-79-67AS cc w/ enclosure:
W. Barr, PG&E W. Raymond, PG&E E. Weeks, PG&E, Humboldt Bay J. D. Worthington, PG&E R. Ramsay, PG&E, Diablo Canyon 273 244 7907 030/77
se IMMEDIATE PRELIMINARY NOTIFICATION June 11, 1979 PRELIMINARY NOTIFICATION OF AN EVENT OR UNUSUAL OCCURRENCE -- PNO-79-67AS This preliminary notification provides updated information of safety or public interest significance.
Facility: Three Mile Island Unit 2 Middletown, Pennsylvania (DN-50-320)
Subj ect:
NUCLEAR INCIDENT AT THREE MILE ISLAND Operational:
1.
The average coolant temperature is 157 de8rees F.
The highest incore thermocouple tenrperature reading is 280 degrees F.
Core cooling is being naintained by natural circulation.
Pressure is about 340 psi with the pressurizer in solid operation.
Steam is being admitted to the main con-denser through the turbine bypass valve frc,m the A Stema 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 Steam Generator "B" Long-Term Cooling System, the modified rad waste treatment system (EPICOR), and the pressure / volume coutrol system should be completed 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 -
June 10, about 37 air samples were collected by the NRC.
All were less than MDA.
Vegetation, soil and milk samples collected last week also showed no activity above MDA. EPA air, water and milk samples collected during the week (up to June 3) showed no detectable activity from TMI.
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DUPLICATE DOCUMENT 273 '45 Entiredocumentpreviouslyenkered into system under:
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