View source for 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

{{Adams
| number = ML20212D270
| issue date = 10/30/1997
| title = 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
| author name = Hackney C, Howell L
| author affiliation = NRC OFFICE OF INSPECTION &amp; ENFORCEMENT (IE REGION IV)
| addressee name = 
| addressee affiliation = 
| docket = 
| license number = 
| contact person = 
| document report number = PNO-IV-97-063, PNO-IV-97-63, NUDOCS 9710310052
| document type = PRELIMINARY NOTIFICATION OF EVENT OR OCCURRENCE (PNO,, TEXT-INSPECTION &amp; AUDIT &amp; I&amp;E CIRCULARS
| page count = 1
}}
{{#Wiki_filter:,.         _            _         .   ~   ..      ._ ___
@ 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
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