PNO-IV-97-062, on 971029,representative of CA Radiologic Health Branch Provided Updated Info Re Reported Overexposure at Isotope Products Labs Facility.State Review of Exposure Ongoing.State of CA Provided NRC Info Regarding Event
| ML20212D183 | |
| Person / Time | |
|---|---|
| Issue date: | 10/30/1997 |
| From: | Hackney C, Linda Howell NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | |
| References | |
| PNO-IV-97-062, PNO-IV-97-62, NUDOCS 9710310029 | |
| Download: ML20212D183 (1) | |
1 October 30,'1997 PjiUMNARY NOTIFICATION _ OF EVENT OR UNUSUAL OCCURRENCE PNO IV 97 002 This preliminary notifi:ation constitutes EARLY notice of events of POSSIBLE
. shisty or public interest blgnificance. The information is as initially received without verification or evaluation, and is basically all that is known by Region IV staff in Arlington, Texas on this date.
- ' facility Licentd.EDurroency Classification Isotope Products laboratories Notification of Unusual Event isotope Products Laboratories Alert y Durbank, California Site Area Emergency Licenso No: CA 1509 19 General Emergency X Not Applicable 3
a 4 ;I
Subject:
NOTIFICATION OF F.XPOSURE IN EXCESS OF AGREEMENT STATE LIMIT p u
+
1 On October 29,1997, representatives of the California Radiologic Health Branch (CRHB)
. ~
proviJed updated hformation regarding a reported overexposure at Isotope Products Laboratorias' facility. Isotope Products Laboratsries is authorized under a California licenae m to manufacture various sources. CRHB representatives land previously provided Vlhiofmotfon regarding the overexposure to the NRC Operations Center on October 21, 1997.
nl t m CRHB ^. . 'eSentatives reported that IJotope Products Laboratories initially reported that an 3
, employb hati heen assign 4 work manufacturing a 10 microcurie americium 241 source in
.il LJdy W97. The work itholved potential for altborne release of americium 241 and was
. " .~
condd::ted VAthin a fume hood. A rot, tine bloassay performed on July 22,1997, Indicated 3 an intake of amerlulum 241, as did a subsequent blocssay performed on August 29. A
't, Wthird bloassay was pa4fonned following the August analysis; however, the results are not u 'yet available. CRHB wec nott'ied of the July and August bloassay results on October 10 4
.and subseqpnt:y initiated an investigation.
EAs of October 29, the pathway for exposure to the material had not jet been identified, Inhlal dose estimates iddicated a potential dose of 900 millirems to 11.85 rems. CRHB (p'
also identified that the individual had been the subject of an overexposure resulting from
.an inthe of emericium 241 in May 1995. CRHB has directed Isotope Products I Libd 4tories to seek indeoendent assistanco a performing a more detailed dose !
assessment. The state's review of this exposure is ongoing. l 1
O 'The state of California provided NRC information regarding this event. Region IV received notification of this occurrence by facsimile and telephone notification from CRHB
, representatives on October 28 and 29. Region IV has informed NMSS and OSP. j y 1 This information has boon discussed with the state and is current as of 12:00 p.m. (CST), l
, p Octobert 30.
Contacf: Charles Hackney Linda Howell l (817)S60-8267 (817)B60 8213 [f; /I d_ Y
- )( p T _ y f, k le ( A- l i
~
9710310029 971030 " (
PI)R IbE
! PNO-IV-97-062 POR
- 3) Of O'I