ML19246A493
| ML19246A493 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 06/19/1979 |
| From: | Seidle W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Eric Turner HOUSTON LIGHTING & POWER CO. |
| References | |
| NUDOCS 7907030209 | |
| Download: ML19246A493 (1) | |
Text
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. 'o, UNITED STATES ljdrQ y '-[ > ~f,(g( )
NUCLEAR REGULATORY COMMISSION W
REGION IV g,. 'p[h[/. f c,-
- . 2 611 RYAN PLAZ A DRIVE, SUITE 1000
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ARLINGTON, T E X AS 76017 June 19, 1979 Docket No. 50-498 50-499 Houston Lighting and Power Company ATTN:
Mr. E. A. Turner, Vice President Power Plant Construction and Technical Services Post Office Box 1700 Houston, Texas 77001 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 re7'.aw, please contact this office.
Sincerely, (f
Ne C.deijle, Chief W.
i Reactor Construt. tion and Engineering Support Branch
Enclosure:
PNO-79-67AT 2 7,3 L' 6 7 7907030 207
TMMEDIATE PRELIMINARY NOTIFICATION June 18, 1979 PRELIMINARY NOTIFICATION OF AN EVENT OR UNUSUAL OCCURRENCE -- PNO-79-67AT This preliminary notification provides updated inform:etion of safety or public interest significance.
Facility: Three Mile Island Unit 2 Middletown, Pennsylvania (DN-50-320)
Subiecc:
NUCLEAR INCIDENT AT THREE MILE ISLAND
@eratic_nal:
1.
The average coolant temperature is 155 degrees F and the highest incare thern couple temperature reading is 273 degrees F.
Core cooling is being m.sintained by natural circulation.
Pressure is about 350 psi with the pressurizer in solid operation.
Steam is being admitted to the :cain con-denser through the turbine bypass valve from the A Steam Generator.
2.
Reactor building water level is being ceasured daily, and is ccv 7.0 t 0.5 feet above floor level.
This lower than previon::1y reported level is due to refinement of the measurement technique, and does not reflect an acutal level decrease.
3.
Preoperational testing for the Spent Fuel Pool Tank Faro, once-Through Steaa Generator "B" Long-Tero Cooling System, the modified radwaste trea: ment system (EPICOR), and the pressure /volu::e control systen pro-gressed sloviv during the past week due to various operational / procurement pr<>blecis encounte rec The testing may be completed within the next two weeks.
Ecviron::eatal Status:
Invironnestal radiation levels remain consistent witL natural background 1tvels.
Airborne releases have been below Technical Specification limits.
Fro:s June 11-17, 42 nir samples, 2 milk samples, 4 vegetation semples and 2 steil sM_ples were collected by the NRC.
All analytical results were less than UJA. IPA air, water and milk samples collected during the week (up to June 15) showed no detectable activity frca TMI.
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.UPLICA"'E DOCUMENT 7,j,,2 b b CONTEntire document previo dly entered into system under:
i I
79 b.) ooh 7 ANO L
No. of Pages: k s--
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