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Event Notification Report for February 13, 2008

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
02/12/2008 - 02/13/2008

** EVENT NUMBERS **


43970 43975

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General Information or Other Event Number: 43970
Rep Org: CALIFORNIA RADIATION CONTROL PRGM
Licensee: UNIVERSITY OF CALIFORNIA BERKELEY
Region: 4
City: BERKELEY State: CA
County:
License #: 1333-01
Agreement: Y
Docket:
NRC Notified By: MARK GOTTLIEB
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 02/07/2008
Notification Time: 19:47 [ET]
Event Date: 08/09/2007
Event Time: [PST]
Last Update Date: 02/07/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
MICHAEL SHANNON (R4)

Event Text

AGREEMENT STATE - LEAKING GENERAL LICENSED SOURCE FROM A GAS CHROMATOGRAPH

The State provided the following information via email:

"On August 9, 2007, a dry smear of an ECD at UC Berkeley indicated a gross count rate of 5171 cpm. It was determined that this count rate indicated an activity of 0.03 uCi of Nickel-63. The ECD was returned to Varian on August 21, 2007, who determined that the leakage was less than the reportable limit of 0.005 uCi. Varian returned the ECD with the original Nickel-63 foil to UC Berkeley on August 28, 2007.

"On October 16, 2007, the same 15 mCi Nickel-63 foil in the same Electron Capture Detector (ECD) in the Varian gas chromatograph was again found to be leaking. The activity of the leakage was determined to be 0.06 uCi. On October 17, 2007, the use of the gas chromatograph was immediately suspended, and a follow-up survey found that the contamination was limited to the top of the ECD, the exhaust funnel and a section of the exhaust tubing. On October 19, 2007, Varian representatives removed the ECD and transported it to their facility for analysis and repair. No adverse health effects resulted from this incident. UC Berkeley notified the RHB [Radiologic Health Branch] of this matter on November 9, 2007."

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General Information or Other Event Number: 43975
Rep Org: CALIFORNIA RADIATION CONTROL PRGM
Licensee: CONAM INSPECTION & ENGINEERING SERVICES
Region: 4
City: SIGNAL HILL State: CA
County:
License #: 4832-19
Agreement: Y
Docket:
NRC Notified By: ROBERT GREGER
HQ OPS Officer: STEVE SANDIN
Notification Date: 02/09/2008
Notification Time: 22:23 [ET]
Event Date: 02/02/2008
Event Time: 09:00 [PST]
Last Update Date: 02/09/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
MICHAEL SHANNON (R4)
ANDREW PERSINKO (FSME)

Event Text

AGREEMENT STATE REPORT INVOLVING FAILURE OF RADIOGRAPHY CAMERA TO LOCK SOURCE IN THE SHIELDED POSITION

The following information was received via email:

"On Saturday, February 2, 2008, at approximately 9:00 A.M., a CONAM radiographer was performing radiography at Conoco Phillips in Signal Hill, CA, when he found he was unable to lock the device after retracting the source to the fully shielded position. The source was fully shielded throughout the incident, and remained under the constant surveillance of the radiographer. The Assistant RSO arrived on site at approximately 10:00 am, determined there was dirt in the locking pen that prevented it from popping up. He cleaned the dirt, and the locking pen engaged, locking the source in place. The device was transported back to the licensee's laboratory, tagged as out of service, and will be sent to INC for inspection and maintenance. The device involved is an INC IR 100 camera (S/N 4160), containing 80 Ci of Ir-192. There were no significant exposures from this event. RHB will follow up with the licensee to determine the root cause of the event, and any necessary corrective actions."

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