ML19246A537
| ML19246A537 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 05/31/1979 |
| From: | Seidle W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Aswell D LOUISIANA POWER & LIGHT CO. |
| References | |
| NUDOCS 7907030267 | |
| Download: ML19246A537 (1) | |
Text
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UNITED STATES 8 y.c, (],j NUCLEAR REGULATORY COMMISSION
/. I REGION IV S'
d' 8 611 RYAN PLAZA ORIVE, SUITE 1000 h, ' Y
,6 ARLINGTON, TEXAS 76012
+...+
May 31,1979 Docket No. 50-382 Louisiana Power and Light Company ATTN: Mr. D. L. Aswell Vice President Power Production 142 Delaronde St.
New Orleans, Louisiana 70174 Gentlemen :
Enclosed is supplement AQ to Preliminary Notification PNO-79-67, " Nuclear Incident at Three Mile Island," dated May 29, 1979.
Should you have any questions regarding this review, please contact this office.
Sincerely,p_
/
l W. C. Seidle, Chief Reactor CoM truction and Engineering Support Branch Enclosure :
PNO-79-67AQ 276 066 7907 030No7
IMMEDIATE t_
PRELIMINARY NOTIFICATION May 29, 1979 FRELIMINARY NOTIFICATION OF AN EVENT OR UNUSUAL OCCURRENCE -- PNO-79-67AQ This preliminary notific ation nrnvidee undstad L a f o m:= ti o n of oo fety or public in:ercot oignificance.
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Fa_cility: Three Mile Island Unit 2 Middletown, Pennsylvania (DN 50-320)
Subject:
NUCLEAR INCIDENT AT THREE MILE ISL\\ND Operational:
1.
The average coolant temperature is 158 degrees F and being maintained around that temperature by natural circulation.
Pressure is about 450 psi with the pressurizer in solid operation.
Steam is being admitted to the main condenser through the turbine bypass valve from the L team Generator.
The highest incore temperature reading is 2.91 F.
2.
Water level in the reactor building is being measured daily, and was 6.8 feet above floor level this corning.
The lowest decay heat system motor-operated valve (DH-V2) in the reactor building was opened on May 25 as a precautionary measure, due to increasing water level. Secondary sources o,f water into the reactor building have since been isolated, including the fan coolers water supply, to reduce water in-leakage.
3.
Preoperational testing is in progress for the Spent Fuel Pool Tank Farm, Once-Through Steam Generator "B" Long-Term Cooling System, and tha c:odified rad waste treatment. system (EPICOR). The testing is scheduled for completion by June 1.
Environmental Status Environmental radiation levels continue to te consistent with natural background levels.
A slight change in background level on May 24 an.' 25 was shown to be due to changing levels of naturally occurring Rn-222 caused by a weather front moving through the area.
Airborne releases have been below Technical Specification licits.
During the period May 21-28, approximately 35 air samples were collected by the NRC and all were less than MDA. Vegeta-tion and milk samples collected dur2ng this period also showed no activity above MDA. EPA air, water and ailk samples collected during this past week up to May 24 showed no detectable activity from TMI.
The State of New Jersey reported that they detected n L 12 P x m,d O
i T
cilk naaples they analyzed betwen IL
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samples included milk fro:a c0H?rit's '
DUPLICATE DOCUMENT and supplied to New Jersey consucers, New Jercey farn.s.
Eatire document previously entered into system under:
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OMECGI ANO f P 9*"
276 067
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