Event Notification Report for February 04, 2010
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
02/03/2010 - 02/04/2010
General Information or Other
Event Number: 45681
Rep Org: OR DEPT OF HEALTH RAD PROTECTION
Licensee: GEORGIA PACIFIC TOLEDO
Region: 4
City: TOLEDO State: OR
County:
License #: ORE-90708
Agreement: Y
Docket:
NRC Notified By: KEVIN SIEBERT
HQ OPS Officer: JOHN KNOKE
Licensee: GEORGIA PACIFIC TOLEDO
Region: 4
City: TOLEDO State: OR
County:
License #: ORE-90708
Agreement: Y
Docket:
NRC Notified By: KEVIN SIEBERT
HQ OPS Officer: JOHN KNOKE
Notification Date: 02/04/2010
Notification Time: 18:30 [ET]
Event Date: 02/04/2010
Event Time: 14:20 [PST]
Last Update Date: 03/03/2010
Notification Time: 18:30 [ET]
Event Date: 02/04/2010
Event Time: 14:20 [PST]
Last Update Date: 03/03/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
VINCENT GADDY (R4DO)
MARK SHAFFER (FSME)
VINCENT GADDY (R4DO)
MARK SHAFFER (FSME)
AGREEMENT STATE REPORT - FAULTY SHUTTER ON FIXED GUAGE
Licensee, Georgia Pacific Toledo, notified the Agency [Oregon Department of Health and Radiation Protection] that the 6 month inspection on their K-Ray fixed gauge (model 7062B) revealed the shutter would not close correctly. The gauge was still able to perform it's function as a level indicator on a coal bin. Licensee called the manufacturer for repairs. Source is 50 mCi of Cs-137.
Incident Report # 10-0005
* * * UPDATE FROM DARYL LEON TO VINCE KLCO ON 3/3/10 AT 1154 EST* * *
On February 10, 2010 the licensee's RSO (Radiation Safety Officer) and the vendor technician verified the fixed gauge shutter functioned correctly. It was observed that the time constant on the detector was quite long. The RSO and the vendor determined that the initial report of a shutter malfunction was in error because personnel did not wait long enough to see the result of closing the shutter on the control system.
The licensee will add a note to the inventory form for this source as to the name of the control tag for the detector in order to verify the closed/open shutter transition and to see an adequate response.
No other action is required on this incident and the State of Oregon recommends that that the incident be closed.
Notified the R4DO (Cain) and FSME (McIntosh).
Licensee, Georgia Pacific Toledo, notified the Agency [Oregon Department of Health and Radiation Protection] that the 6 month inspection on their K-Ray fixed gauge (model 7062B) revealed the shutter would not close correctly. The gauge was still able to perform it's function as a level indicator on a coal bin. Licensee called the manufacturer for repairs. Source is 50 mCi of Cs-137.
Incident Report # 10-0005
* * * UPDATE FROM DARYL LEON TO VINCE KLCO ON 3/3/10 AT 1154 EST* * *
On February 10, 2010 the licensee's RSO (Radiation Safety Officer) and the vendor technician verified the fixed gauge shutter functioned correctly. It was observed that the time constant on the detector was quite long. The RSO and the vendor determined that the initial report of a shutter malfunction was in error because personnel did not wait long enough to see the result of closing the shutter on the control system.
The licensee will add a note to the inventory form for this source as to the name of the control tag for the detector in order to verify the closed/open shutter transition and to see an adequate response.
No other action is required on this incident and the State of Oregon recommends that that the incident be closed.
Notified the R4DO (Cain) and FSME (McIntosh).
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Other Nuclear Material
Event Number: 45786
Rep Org: WASHINGTON UNIVERSITY ST. LOUIS
Licensee: WASHINGTON UNIVERSITY ST. LOUIS
Region: 3
City: ST. LOUIS State: MO
County:
License #: 24-00167-11
Agreement: N
Docket:
NRC Notified By: SUE LANGHORST
HQ OPS Officer: BILL HUFFMAN
Licensee: WASHINGTON UNIVERSITY ST. LOUIS
Region: 3
City: ST. LOUIS State: MO
County:
License #: 24-00167-11
Agreement: N
Docket:
NRC Notified By: SUE LANGHORST
HQ OPS Officer: BILL HUFFMAN
Notification Date: 03/23/2010
Notification Time: 18:10 [ET]
Event Date: 02/04/2010
Event Time: 00:00 [CDT]
Last Update Date: 07/02/2010
Notification Time: 18:10 [ET]
Event Date: 02/04/2010
Event Time: 00:00 [CDT]
Last Update Date: 07/02/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
20.2202(b)(1) - PERS OVEREXPOSURE/TEDE >= 5 REM
10 CFR Section:
20.2202(b)(1) - PERS OVEREXPOSURE/TEDE >= 5 REM
Person (Organization):
LAURA KOZAK (R3DO)
ANDREA KOCK (FSME)
LAURA KOZAK (R3DO)
ANDREA KOCK (FSME)
EXTREMITY OVEREXPOSURE TO FINGERTIPS
The licensee's RSO reported that on March 9, 2010, a report was received from Landauer indicating that a technician that worked at the licensee's facility received a left hand ring dose of 11,900 millirem. The right hand ring dose was 4030 millirem. The licensee began an investigation into these readings and determined that the technician may have had a high extremity dose to the finger tips. After interviews with the technician and reconstruction of the event the licensee now believes that the technician may have received a dose between 50 rem and 400 rem over a 10 square-centimeter area of his fingertips as the result of improper handling of the radionuclide Bromine-76. The dose exposure to the fingertips was calculated using the Varskin computer code.
The technician was handling 32 millicurie vials of Bromine-76 between February 4 and February 5, 2010, related to research activities at Washington University. Normally, the vials would be handled with a long-handled tool with shielding. For reasons uncertain, the technician is believed to have directly handled the vials on several occasions. The technician has approximately six years of work-history with this type of activity.
The technician experienced no observable effects from the exposure. The technician has not worked with radioactive materials since mid-February. The Landauer whole-body deep dose badge reading for the period in question was 25 millirem.
* * * RETRACTION FROM SUSAN LANGHORST TO PETE SNYDER ON 7/2/2010 at 1631 EDT * * *
The licensee reconstructed the dose for the event after conversing with NRC Region 3. The licensees reconstructed dose estimate was 26 rem which is not over the dose limit of 50 rem. Therefore, this event is not reportable.
Notified R3DO (Daley), FSME EO (Lueman).
The licensee's RSO reported that on March 9, 2010, a report was received from Landauer indicating that a technician that worked at the licensee's facility received a left hand ring dose of 11,900 millirem. The right hand ring dose was 4030 millirem. The licensee began an investigation into these readings and determined that the technician may have had a high extremity dose to the finger tips. After interviews with the technician and reconstruction of the event the licensee now believes that the technician may have received a dose between 50 rem and 400 rem over a 10 square-centimeter area of his fingertips as the result of improper handling of the radionuclide Bromine-76. The dose exposure to the fingertips was calculated using the Varskin computer code.
The technician was handling 32 millicurie vials of Bromine-76 between February 4 and February 5, 2010, related to research activities at Washington University. Normally, the vials would be handled with a long-handled tool with shielding. For reasons uncertain, the technician is believed to have directly handled the vials on several occasions. The technician has approximately six years of work-history with this type of activity.
The technician experienced no observable effects from the exposure. The technician has not worked with radioactive materials since mid-February. The Landauer whole-body deep dose badge reading for the period in question was 25 millirem.
* * * RETRACTION FROM SUSAN LANGHORST TO PETE SNYDER ON 7/2/2010 at 1631 EDT * * *
The licensee reconstructed the dose for the event after conversing with NRC Region 3. The licensees reconstructed dose estimate was 26 rem which is not over the dose limit of 50 rem. Therefore, this event is not reportable.
Notified R3DO (Daley), FSME EO (Lueman).