PNO-III-81-067, on 810730,approx 2,000 Gallons of Radioactive Liquid Discharged.Most Absorbed Into Ground Before Reaching Storm Sewer.Caused by Hose Connection Break.Sewer Diked. Water Being Recovered
| ML20010G467 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 07/31/1981 |
| From: | Greger L, Lovendale P NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| References | |
| PNO-III-81-067, PNO-III-81-67, NUDOCS 8109210206 | |
| Download: ML20010G467 (1) | |
,
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..} n FREI.IMINARY NOTIFICATION.
Date:
July 31. 1981 PRELIMINARY NOTIFICATIQN OF EVENT: 0R IDRISUAL. OCCURRENCE--PNO-III 67 ';.
- a.
. i, 5This preliarinary notification constitutes EAR $.Y notice of events of POSSIBLE Y safety or public interest significance. The inf ormation presented is as initially received witbout verification or evafu's' tion end is basically a1.1 that is known by IE staff as of this date.
~
M FACICITY:
Northern States Power Company t'sr
^
Monticello. Nuclear Generating Plant Docket No. 50-263
SUBJECT:
UNPLANNED LIQUID RELEASE9.
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A small. unplanned, liquid release (slightly exceeding' technical specification limits) occurred at approximately 10:00'p.m. (CDT) on. July 30.1981..The IIqui was relcomed from the condensate storagc> tank when a temporary hose connection broke Inside the radwaste building....,The'. water...ran out; of the radweste bul i
cod into a storm sewer.
4 e
. asorbed in the ground before reaching' the storm' sewer. a i-gallons was discharged into the river.
cnd is In the process of recovering the remaining water.The licensee has. diked the storm s 9
5:mples taken in the storm sewer showed 4.2 E-7 uCI/ml~ 1-131 and 1.4. E-6 uC (1-131 HPc is 3E-7 uCl/ml; i-l33 MPC is lE-6 utt/ml.)' 133,.which e River dilution would raduce the concentrations to below MPC within several. yards of the storm sewer cutlet.
6 The licensee issued a press release at 8: 00 a.m. (CDT)..and is planning a press
' briefing at 11:00 a.m.
(CDT).
Ho press release is planned by Region lliThere has been'significant local news media interest.
responding to news media Inquiries.
(Chicago) at:this time; P.egion lll o
is Tha State of Minnesota and the EPA have been notif ed.
Tha Reildont toncphone from a Regional Radiation Specialist. inspectors are reviewing licens ReDien Lill received notification of this, event by telephene f rom the NRC Vatch Of ficer at 10:45 p.m.
(CDT) on 7/30/81.: This Information is current as of 4
10:30 a.m., July 31, 1981.
d CONTACT:
P.C.!Lovendale t
L. R. Greger.
384 'z638 384-2644.
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81092 206 010731 h-11-81-067PDR 7