PNO-IV-97-063, on 971029,incident Resulting in Potential Exposure in Excess of Regulatory Limit Occurred.Gauge Mfg Notified of Incident.State of CA Provided NRC Info Regarding Event
| ML20212D270 | |
| Person / Time | |
|---|---|
| Issue date: | 10/30/1997 |
| From: | Hackney C, Linda Howell NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | |
| References | |
| PNO-IV-97-063, PNO-IV-97-63, NUDOCS 9710310052 | |
| Download: ML20212D270 (1) | |
,. _ _ . ~ .. ._ ___
@ I. . Oct::ber 30,1997 Wy L ^ 7 ppm ma! NARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE PNO-IV 97-063 20 g M' (Thisheliminary notification constitutes EARLY notice of events of POSSIBLE
. ,.safet'y or public interest significance. The information is as initially p
- received.wlthout verification'or evaluation, and is basically all that is -
known byLRegipn IV staff in Arlington, Texas on this date. -
- Facility . Licensee Emeroency Classification rg"
^
- Manson Construction & Engineering Co.- Notification of Unusual Event
~ Manson Construction & Eng. Co.. : Alert l
-1605 Pier D Street a: Site Area Emergency Long Beach,Californias General Emergency .
i X Not Applicable i s l
I
Subject:
' INCIDENT RESULTING IN POTENTIAL EXPOSURE IN EXCESS OF 4
1 REGULATORY LIMIT -
M !
NRy facsimile transmittal dated October 29,1997, the California Radiologic Health Branch
,, ;fCRHB) Informed the Office of State Programs and Region IV of an incident involving an
' inadvertent exposur n . . .. .
- CRHB reported that an employee of Manson. Construction & Engineering Co., Long Beach, California, was removing a Texas Nuclear Model 5409 pipe gauge, containing 2.8 curies of 4
ceslum-137, from a barge for. service when the exposure occurred. The individual believed m -that hehad closed the shutter prior to removing the gauge, but after working with the gauge M' for4 W 4
- E a period of time, he realized that the shutter had remained in the open position. The individual
.~ worked with the gauge for approximate!v 30 minutes and based on an evaluation performed
.by CRHB, the dose received.by the individual was estimated to be 4.7 rems. A second
, : Individual was also reported to have worked in the vicinity, although he was present for a sh'o rter period of time and was at a greater distance from the source. A dose estimate for 1the second individual was not yet available, ra ~
- CRHB has directed Manson Construction & Engineering to obtain the services of a consultant R
~
fto complete a review of the incident and perform dose assessments for both indMuals. The
~
- gauge manufacturer has been notified ~of the incident and will perform an examination of the
~
1 shutter mechanism to determine the cause of its failure to close.
. The.' state of California provided NRC information regarding this ever.t. !
< Region.IV received notification of this occurrence by facsimile from CRHB on Octcher 29. -
- Region IV has informed NMSS. -
LThis information- bas been. discussed -with the state and is current as of 12:00 p.m.,
LOctober 30,1997.
(Contact: Charles A. Hackney' Linda Howell
-(817)860-8267 (8171860-8213 Mh/b5 /O po c
og
'F l9710310052 971030- ' *
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PND-IV-97-063' PDR i \\O { \
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