ML20151X754
| ML20151X754 | |
| Person / Time | |
|---|---|
| Site: | University of Virginia |
| Issue date: | 09/23/1977 |
| From: | Bidinger G, Liza Cunningham, Higginbotham L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| PNO-77-167, NUDOCS 9809170234 | |
| Download: ML20151X754 (2) | |
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PRELIMINARY NOTIFICATION September 23, 1977 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-77-167
_This preliminary notification constitutes EARLY notice of an event of
_POSSIBLE safety or public interest significance.
The information presented is as initially received without verification or evaluation and is basically all that is known by IE st,aff on this date.
_ FACILITY: University of Virginia UVAR Pool Reactor Docket No. 50-62 Charlottesville, Virginia
SUBJECT:
REACTOR POOL LEAK AND LEAKING FUEL ASSEMBLY This Preliminary Notification is being issued because of local media interest.
Region II was notified by a licensee letter received on August 11, of a leak in the University of Virginia Reactor (UVAR) pool. The leak reported in August was indicated by the need for increased makeup water to maintain constant pool depth. Makeup water for the month of July averaged 450 gallons per day above the normal makeup rate of 210 gallons per day.
On September 6, the reactor was shut down for pool repair. The pool was drained by September 12.
On September 7, a Region II inspector who was at the site was notified that increcsed radioactivity concentration in pool water on that date ~
~
S indicated a possible leak in fuel cladding.
Fur.ther lests by the licensee confirmed 'that one fuel ass'embly was leaking.
O' The average concentration of radioactivity released to the environment
/
is below regulatory limits.
No radioactivity attributable to the plant has been detected in environmental samples collected since the leak j
occurred.
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The Commonwealth of Virginia was notified by Region II as the events p.
occurred. Region II responded to local media inquiries on Sept. ember 22.
o, A news release is not planned by the licensee or Region II.
CONTINUED
$9%3477o923 PNO-77-167 pg
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Page 2 PNO-77-167 Cor,tinur d September 23, 1977-~
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Region II (Atlanta) received original notification of this occurrence by a letter from the licensee on August 11.
This information is current as of 11:00 a.m. on September 23.
Contact:
GHBidinger, IE x27551 LJCunningham, IE x27551 LBHigginbotham x280' l Distribution:
Transmitted H St 8.'3 0;,
Chairman Hendrie Commissioner Bradford Commissioner Kennedy S. J. Chilk, SECY C. C. Kammerer, CA Commissioner Gilinsky (ForDistribution) l Transmitted: MNBB J.'S a_
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E. Volgenau, #, %
IE L. V. C asick, ED0 E. G. Case, NRR Region g i
S. H. Hanauer, EDO J. J. Fouchard, PA SS Bldg 7: 40 (MAIL)
W. G. Mcdonald, MIPC C. V. Smith, NMSS R. J. 15cTiernan, OIA R. G. Ryan, OSP R. Minogue, SD H. K. Shapar, ELD PRELIMINARY NOTIFICATIQN s
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